Array
(
[page] => 231
[item_count] => 3612
[items_per_page] => 15
[data] => Array
(
[0] => Array
(
[vysledek_id] => 183512
[vysledek_druh_id] => ARTWOS
[ex_vysledek_id] => 148154
[vysledek_rok] => 2023
[nazev] => Experimental validation of the operation of tilting-pad journal bearing lubricated by high-test peroxide under excessive vibrations and reduced flow of the lubricant
[nazev_orig] => Experimental validation of the operation of tilting-pad journal bearing lubricated by high-test peroxide under excessive vibrations and reduced flow of the lubricant
[duvernost_udaju_id] => S
[popis] => Hydrogen peroxide is commonly used as a low-toxicity liquid rocket propellant (oxidizer). Hydrodynamic bearings lubricated by this propellant may be applicable in rocket engine pumps. In this paper, a hydrodynamic tilting-pad journal bearing lubricated by highly concentrated (87wt%) hydrogen peroxide was proposed. Furthermore, an experimental validation of the performance of this bearing with pads made of PEEK material (polyetheretherketone) was carried out on the developed high-speed measuring device. To verify the endurance of this bearing, measurements were performed at different peroxide flow rates from 100% to 20% of the nominal flow rate. The tests were also conducted under excessive vibrations induced by the misalignment of the test rotor with the drive connected by a flexible coupling. In addition to vibration measurement, the wear of the bearing sliding surfaces and lubricant temperature variations were evaluated. The measured results were compared with the calculated data. For this purpose, a two-dimensional computational model based on the thermo-elasto-hydrodynamic lubrication theory was presented. To improve the solution convergence, Newton's method was used to calculate the equilibrium tilt of the pads. The involved bearings operated smoothly at the mentioned misalignment even at 20% peroxide flow, only slight foaming occurred at the outlet.
[popis_orig] => Hydrogen peroxide is commonly used as a low-toxicity liquid rocket propellant (oxidizer). Hydrodynamic bearings lubricated by this propellant may be applicable in rocket engine pumps. In this paper, a hydrodynamic tilting-pad journal bearing lubricated by highly concentrated (87wt%) hydrogen peroxide was proposed. Furthermore, an experimental validation of the performance of this bearing with pads made of PEEK material (polyetheretherketone) was carried out on the developed high-speed measuring device. To verify the endurance of this bearing, measurements were performed at different peroxide flow rates from 100% to 20% of the nominal flow rate. The tests were also conducted under excessive vibrations induced by the misalignment of the test rotor with the drive connected by a flexible coupling. In addition to vibration measurement, the wear of the bearing sliding surfaces and lubricant temperature variations were evaluated. The measured results were compared with the calculated data. For this purpose, a two-dimensional computational model based on the thermo-elasto-hydrodynamic lubrication theory was presented. To improve the solution convergence, Newton's method was used to calculate the equilibrium tilt of the pads. The involved bearings operated smoothly at the mentioned misalignment even at 20% peroxide flow, only slight foaming occurred at the outlet.
[klicova_slova] => Hydrogen peroxide; Tilting pad journal bearing; Measurement; Extreme conditions
[klicova_slova_orig] => Hydrogen peroxide; Tilting pad journal bearing; Measurement; Extreme conditions
[url] => https://www.sciencedirect.com/science/article/pii/S0043164823001849
[oecd_obor_id] => 20301
[odpovedny_utvar_id] => 157
[odpovedny_utvar_nazev] => Institute of Solid Mechanics, Mechatronics and Biomechanics
[odpovedny_utvar_zkratka] => ISMMB
[nadrazena_soucast_id] => 4
[nadrazena_soucast_zkratka] => FME
[nadrazena_soucast_nazev] => Faculty of Mechanical Engineering
[originalni_jazyk] => en
[schvalil_id] => 1770
[schvaleno] => 2024-06-26
[vykazovat_riv] => 1
[vykazovat_riv_zmeny] => 1
[slozka_id] => 132226
[posledni_diagnostika] =>
[vycet_osob] => POKORNÝ, J.; NÁVRAT, T.; VAJDÁK, M.; OTEVŘEL, M.; KOZÁK, J.
[pocet_tvurcu] => 5
[tvurci_ids] =>
[poznamka] =>
[typ_nazev] =>
[kod_doi] => 10.1016/j.wear.2023.204801
[kod_dspace] => 11012/209502
[rok_vytvoreni] =>
[pocet_zaznamu] =>
[zverejneno] => 1
[prvni_autor] =>
[korespondencni_autor] =>
[posledni_autor] =>
[znamka] =>
[kategorie_nazev] => Publication results
[druh_nazev] => WoS Article
[druh_popis] => Peer-reviewed article included in Web of Science database as as an “Article”, “Review” or “Letter”
[stav] => Approved
[vysledek_kategorie_id] => PV
[vysledek_system_kategorie_id] => PU
[vysledek_stav_id] => 3
[vlozil] => Informační systém Automat
[upravil] => Informační systém Automat
[ins_uid] => 999999
[upd_uid] => 999999
[ins_ts] => 2025-09-22
[upd_ts] => 2025-09-22
[status] => 9
[identifikator] => ISSN 0043-1648
[identifikator_popis] => ISSN - Wear (CH)
[riv_dodavka_id] =>
[riv_dodavka_oznaceni] =>
[riv_dodavka_rok] =>
[diagnostika_pocet] => 2
[diagnostika_pocet_chyba] => 0
[diagnostika_pocet_upozorneni] => 0
[diagnostika_pocet_informace] => 2
[citace_text] => POKORNÝ, J.; NÁVRAT, T.; VAJDÁK, M.; OTEVŘEL, M.; KOZÁK, J. Experimental validation of the operation of tilting-pad journal bearing lubricated by high-test peroxide under excessive vibrations and reduced flow of the lubricant. Wear, 2023, vol. 523, no. 6, 13 p. ISSN: 0043-1648.
[citace_html] => POKORNÝ, J.; NÁVRAT, T.; VAJDÁK, M.; OTEVŘEL, M.; KOZÁK, J. Experimental validation of the operation of tilting-pad journal bearing lubricated by high-test peroxide under excessive vibrations and reduced flow of the lubricant. Wear, 2023, vol. 523, no. 6, 13 p. ISSN: 0043-1648.
[citace_rtf] =>
[citace_bibtex] => @article{BUT183512,
author="Jan {Pokorný} and Tomáš {Návrat} and Michal {Vajdák} and Marek {Otevřel} and Jiří {Kozák}",
title="Experimental validation of the operation of tilting-pad journal bearing lubricated by high-test peroxide under excessive vibrations and reduced flow of the lubricant",
journal="Wear",
year="2023",
volume="523",
number="6",
pages="13",
doi="10.1016/j.wear.2023.204801",
issn="0043-1648",
url="https://www.sciencedirect.com/science/article/pii/S0043164823001849"
}
[vykazano] =>
[vykazano_aspon_jednou] =>
[identifikacni_kod] =>
[neautorsky_vysledek] => 0
[if] => 5.3
[if_q] => 1
[if_m17_q] => 1
[if_m25_q] => 1
[if_d] =>
[if_m17_d] => 1
[if_m25_d] => 1
[if_percentil] => 90.8
[if_m17_percentil] => 91.066
[if_m25_percentil] => 93.107
[ais] => 0.805
[ais_m17_q] => 1
[ais_m25_q] => 1
[ais_m17_d] => 2
[ais_m25_d] => 2
[ais_m17_percentil] => 82.288
[ais_m25_percentil] => 84.625
[jci] => 1.13
[jci_q] => 1
[jci_percentil] => 85.278
[ef] =>
[scopus_sjr] => 1.12
[scopus_sjr_q] => 1
[scopus_sjr_d] =>
[nature_index_group] =>
[incites_times_cited] => 2
[incites_open_access] => 1
[incites_jnci] => 0.2
[incites_is_int_collab] => 0
[incites_is_industry_collab] => 0
[incites_esi_hot_paper] => 0
[incites_esi_highly_cited_paper] => 0
[incites_avg_cnci] => 0.2425
[incites_avg_percentile] => 20.23515
[scival_citations_count] => 4
[scival_fwci] => 1.339943
[core_rank] => NA
[oecd_tree_oblast_id] => 20000
[oecd_tree_oblast_nazev] => 2. Engineering and Technology
[oecd_tree_obor_id] => 20300
[oecd_tree_obor_nazev] => 2.3 Mechanical engineering
[oecd_tree_podobor_id] => 20301
[oecd_tree_podobor_nazev] => Mechanical engineering
[poznamka_metriky] =>
[nazev_en] => Experimental validation of the operation of tilting-pad journal bearing lubricated by high-test peroxide under excessive vibrations and reduced flow of the lubricant
[popis_en] => Hydrogen peroxide is commonly used as a low-toxicity liquid rocket propellant (oxidizer). Hydrodynamic bearings lubricated by this propellant may be applicable in rocket engine pumps. In this paper, a hydrodynamic tilting-pad journal bearing lubricated by highly concentrated (87wt%) hydrogen peroxide was proposed. Furthermore, an experimental validation of the performance of this bearing with pads made of PEEK material (polyetheretherketone) was carried out on the developed high-speed measuring device. To verify the endurance of this bearing, measurements were performed at different peroxide flow rates from 100% to 20% of the nominal flow rate. The tests were also conducted under excessive vibrations induced by the misalignment of the test rotor with the drive connected by a flexible coupling. In addition to vibration measurement, the wear of the bearing sliding surfaces and lubricant temperature variations were evaluated. The measured results were compared with the calculated data. For this purpose, a two-dimensional computational model based on the thermo-elasto-hydrodynamic lubrication theory was presented. To improve the solution convergence, Newton's method was used to calculate the equilibrium tilt of the pads. The involved bearings operated smoothly at the mentioned misalignment even at 20% peroxide flow, only slight foaming occurred at the outlet.
[klicova_slova_en] => Hydrogen peroxide; Tilting pad journal bearing; Measurement; Extreme conditions
[vysledek_datum] => 2023-03-22T00:00:00+01:00
)
[1] => Array
(
[vysledek_id] => 183553
[vysledek_druh_id] => CONPAX
[ex_vysledek_id] => 148172
[vysledek_rok] => 2023
[nazev] => Finite Element Modal Analysis of a Silicone Vocal Fold Filled with Fluid
[nazev_orig] => Finite Element Modal Analysis of a Silicone Vocal Fold Filled with Fluid
[duvernost_udaju_id] => S
[popis] => A three dimensional (3D) finite element (FE) model of a silicone vocal fold (VF) filled with fluid is presented here. The silicone part of the model is based on partial differential equations of the continuum mechanics and consider large deformations. The fluid domain encapsulated in the silicone VF is defined semi-analytically as a lumped-element model describing the fluid in hydrostatic conditions. The elongated and pressurized silicone VF was subjected to perturbed modal analysis. Results showed that the choice of the fluid inside the VF substantially influences the natural frequencies. Namely, the water-filling lowers the natural frequencies approximately by half over the air-filling. Besides, the procedure of reverse engineering for obtaining the geometry of the VF from already 3D-printed mold is introduced.
[popis_orig] => A three dimensional (3D) finite element (FE) model of a silicone vocal fold (VF) filled with fluid is presented here. The silicone part of the model is based on partial differential equations of the continuum mechanics and consider large deformations. The fluid domain encapsulated in the silicone VF is defined semi-analytically as a lumped-element model describing the fluid in hydrostatic conditions. The elongated and pressurized silicone VF was subjected to perturbed modal analysis. Results showed that the choice of the fluid inside the VF substantially influences the natural frequencies. Namely, the water-filling lowers the natural frequencies approximately by half over the air-filling. Besides, the procedure of reverse engineering for obtaining the geometry of the VF from already 3D-printed mold is introduced.
[klicova_slova] => Perturbed Modal Analysis; Finite Element Method; Vocal Folds; Reverse Engineering; Biomechanics of Voice
[klicova_slova_orig] => Perturbed Modal Analysis; Finite Element Method; Vocal Folds; Reverse Engineering; Biomechanics of Voice
[url] => https://doi.org/10.21495/em2023-87
[oecd_obor_id] => 10307
[odpovedny_utvar_id] => 157
[odpovedny_utvar_nazev] => Institute of Solid Mechanics, Mechatronics and Biomechanics
[odpovedny_utvar_zkratka] => ISMMB
[nadrazena_soucast_id] => 4
[nadrazena_soucast_zkratka] => FME
[nadrazena_soucast_nazev] => Faculty of Mechanical Engineering
[originalni_jazyk] => en
[schvalil_id] => 1594
[schvaleno] => 2024-01-17
[vykazovat_riv] => 1
[vykazovat_riv_zmeny] => 1
[slozka_id] =>
[posledni_diagnostika] =>
[vycet_osob] => HÁJEK, P.; RADOLF, V.; HORÁČEK, J.; ŠVEC, J.
[pocet_tvurcu] => 4
[tvurci_ids] =>
[poznamka] =>
[typ_nazev] =>
[kod_doi] => 10.21495/em2023-87
[kod_dspace] =>
[rok_vytvoreni] =>
[pocet_zaznamu] =>
[zverejneno] => 1
[prvni_autor] =>
[korespondencni_autor] =>
[posledni_autor] =>
[znamka] =>
[kategorie_nazev] => Publication results
[druh_nazev] => Paper in proceedings outside WoS and Scopus
[druh_popis] => Paper in proceedings outside WoS and Scopus
[stav] => Approved
[vysledek_kategorie_id] => PV
[vysledek_system_kategorie_id] => PU
[vysledek_stav_id] => 3
[vlozil] => Informační systém Automat
[upravil] => Informační systém Automat
[ins_uid] => 999999
[upd_uid] => 999999
[ins_ts] => 2025-09-22
[upd_ts] => 2025-09-22
[status] => 9
[identifikator] => ISBN 978-80-87012-84-0 ISSN 1805-8248
[identifikator_popis] => ISBN - Engineering Mechanics 2023 ISSN - Engineering Mechanics (CZ)
[riv_dodavka_id] => 3367
[riv_dodavka_oznaceni] => RIV24-MSM-26210___
[riv_dodavka_rok] => 2024
[diagnostika_pocet] => 0
[diagnostika_pocet_chyba] => 0
[diagnostika_pocet_upozorneni] => 0
[diagnostika_pocet_informace] => 0
[citace_text] => HÁJEK, P.; RADOLF, V.; HORÁČEK, J.; ŠVEC, J. Finite Element Modal Analysis of a Silicone Vocal Fold Filled with Fluid. Engineering Mechanics 2023. Engineering Mechanics. Praha: Institute of Thermomechanics of the Czech Academy of Sciences, 2023. no. 1, p. 87-90. ISBN: 978-80-87012-84-0. ISSN: 1805-8248.
[citace_html] => HÁJEK, P.; RADOLF, V.; HORÁČEK, J.; ŠVEC, J. Finite Element Modal Analysis of a Silicone Vocal Fold Filled with Fluid. Engineering Mechanics 2023. Engineering Mechanics. Praha: Institute of Thermomechanics of the Czech Academy of Sciences, 2023. no. 1, p. 87-90. ISBN: 978-80-87012-84-0. ISSN: 1805-8248.
[citace_rtf] =>
[citace_bibtex] => @inproceedings{BUT183553,
author="Petr {Hájek} and Vojtěch {Radolf} and Jaromír {Horáček} and Jan G. {Švec}",
title="Finite Element Modal Analysis of a Silicone Vocal Fold Filled with Fluid",
booktitle="Engineering Mechanics 2023",
year="2023",
journal="Engineering Mechanics",
volume="29",
number="1",
pages="87--90",
publisher="Institute of Thermomechanics of the Czech Academy of Sciences",
address="Praha",
doi="10.21495/em2023-87",
isbn="978-80-87012-84-0",
issn="1805-8248",
url="https://doi.org/10.21495/em2023-87"
}
[vykazano] =>
[vykazano_aspon_jednou] =>
[identifikacni_kod] =>
[neautorsky_vysledek] => 0
[if] =>
[if_q] =>
[if_m17_q] =>
[if_m25_q] =>
[if_d] =>
[if_m17_d] =>
[if_m25_d] =>
[if_percentil] =>
[if_m17_percentil] =>
[if_m25_percentil] =>
[ais] =>
[ais_m17_q] =>
[ais_m25_q] =>
[ais_m17_d] =>
[ais_m25_d] =>
[ais_m17_percentil] =>
[ais_m25_percentil] =>
[jci] =>
[jci_q] =>
[jci_percentil] =>
[ef] =>
[scopus_sjr] =>
[scopus_sjr_q] =>
[scopus_sjr_d] =>
[nature_index_group] =>
[incites_times_cited] =>
[incites_open_access] =>
[incites_jnci] =>
[incites_is_int_collab] =>
[incites_is_industry_collab] =>
[incites_esi_hot_paper] =>
[incites_esi_highly_cited_paper] =>
[incites_avg_cnci] =>
[incites_avg_percentile] =>
[scival_citations_count] =>
[scival_fwci] =>
[core_rank] => NA
[oecd_tree_oblast_id] => 10000
[oecd_tree_oblast_nazev] => 1. Natural Sciences
[oecd_tree_obor_id] => 10300
[oecd_tree_obor_nazev] => 1.3 Physical sciences
[oecd_tree_podobor_id] => 10307
[oecd_tree_podobor_nazev] => Acoustics
[poznamka_metriky] =>
[nazev_en] => Finite Element Modal Analysis of a Silicone Vocal Fold Filled with Fluid
[popis_en] => A three dimensional (3D) finite element (FE) model of a silicone vocal fold (VF) filled with fluid is presented here. The silicone part of the model is based on partial differential equations of the continuum mechanics and consider large deformations. The fluid domain encapsulated in the silicone VF is defined semi-analytically as a lumped-element model describing the fluid in hydrostatic conditions. The elongated and pressurized silicone VF was subjected to perturbed modal analysis. Results showed that the choice of the fluid inside the VF substantially influences the natural frequencies. Namely, the water-filling lowers the natural frequencies approximately by half over the air-filling. Besides, the procedure of reverse engineering for obtaining the geometry of the VF from already 3D-printed mold is introduced.
[klicova_slova_en] => Perturbed Modal Analysis; Finite Element Method; Vocal Folds; Reverse Engineering; Biomechanics of Voice
[vysledek_datum] => 2023-05-09T00:00:00+02:00
)
[2] => Array
(
[vysledek_id] => 183554
[vysledek_druh_id] => CONF
[ex_vysledek_id] => 27975
[vysledek_rok] => 2023
[nazev] => Engineering Mechanics 2023
[nazev_orig] => Engineering Mechanics 2023
[duvernost_udaju_id] => S
[popis] => Engineering Mechanics 2023
[popis_orig] => Engineering Mechanics 2023
[klicova_slova] => Engineering Mechanics
[klicova_slova_orig] => Engineering Mechanics
[url] => https://www.engmech.cz/
[oecd_obor_id] => 20302
[odpovedny_utvar_id] => 157
[odpovedny_utvar_nazev] => Institute of Solid Mechanics, Mechatronics and Biomechanics
[odpovedny_utvar_zkratka] => ISMMB
[nadrazena_soucast_id] => 4
[nadrazena_soucast_zkratka] => FME
[nadrazena_soucast_nazev] => Faculty of Mechanical Engineering
[originalni_jazyk] => en
[schvalil_id] => 126528
[schvaleno] => 2023-05-22
[vykazovat_riv] => 0
[vykazovat_riv_zmeny] => 1
[slozka_id] =>
[posledni_diagnostika] =>
[vycet_osob] => RADOLF, V.; ZOLOTAREV, I.; HÁJEK, P.
[pocet_tvurcu] =>
[tvurci_ids] =>
[poznamka] =>
[typ_nazev] =>
[kod_doi] =>
[kod_dspace] =>
[rok_vytvoreni] =>
[pocet_zaznamu] =>
[zverejneno] => 1
[prvni_autor] =>
[korespondencni_autor] =>
[posledni_autor] =>
[znamka] =>
[kategorie_nazev] => Event
[druh_nazev] => Holding a conference
[druh_popis] => Holding a conference
[stav] => Approved
[vysledek_kategorie_id] => EV
[vysledek_system_kategorie_id] => EV
[vysledek_stav_id] => 3
[vlozil] => Informační systém Automat
[upravil] => Informační systém Automat
[ins_uid] => 999999
[upd_uid] => 999999
[ins_ts] => 2025-09-22
[upd_ts] => 2025-09-22
[status] => 9
[identifikator] =>
[identifikator_popis] =>
[riv_dodavka_id] =>
[riv_dodavka_oznaceni] =>
[riv_dodavka_rok] =>
[diagnostika_pocet] => 0
[diagnostika_pocet_chyba] => 0
[diagnostika_pocet_upozorneni] => 0
[diagnostika_pocet_informace] => 0
[citace_text] => RADOLF, V.; ZOLOTAREV, I.; HÁJEK, P.: Engineering Mechanics 2023. Milovy (09.05.2023)
[citace_html] => RADOLF, V.; ZOLOTAREV, I.; HÁJEK, P.: Engineering Mechanics 2023. Milovy (09.05.2023)
[citace_rtf] =>
[citace_bibtex] => @misc{BUT183554,
title="Engineering Mechanics 2023",
year="2023",
url="https://www.engmech.cz/",
note="Holding a conference"
}
[vykazano] =>
[vykazano_aspon_jednou] =>
[identifikacni_kod] =>
[neautorsky_vysledek] => 0
[if] =>
[if_q] =>
[if_m17_q] =>
[if_m25_q] =>
[if_d] =>
[if_m17_d] =>
[if_m25_d] =>
[if_percentil] =>
[if_m17_percentil] =>
[if_m25_percentil] =>
[ais] =>
[ais_m17_q] =>
[ais_m25_q] =>
[ais_m17_d] =>
[ais_m25_d] =>
[ais_m17_percentil] =>
[ais_m25_percentil] =>
[jci] =>
[jci_q] =>
[jci_percentil] =>
[ef] =>
[scopus_sjr] =>
[scopus_sjr_q] =>
[scopus_sjr_d] =>
[nature_index_group] =>
[incites_times_cited] =>
[incites_open_access] =>
[incites_jnci] =>
[incites_is_int_collab] =>
[incites_is_industry_collab] =>
[incites_esi_hot_paper] =>
[incites_esi_highly_cited_paper] =>
[incites_avg_cnci] =>
[incites_avg_percentile] =>
[scival_citations_count] =>
[scival_fwci] =>
[core_rank] => NA
[oecd_tree_oblast_id] => 20000
[oecd_tree_oblast_nazev] => 2. Engineering and Technology
[oecd_tree_obor_id] => 20300
[oecd_tree_obor_nazev] => 2.3 Mechanical engineering
[oecd_tree_podobor_id] => 20302
[oecd_tree_podobor_nazev] => Applied mechanics
[poznamka_metriky] =>
[nazev_en] => Engineering Mechanics 2023
[popis_en] => Engineering Mechanics 2023
[klicova_slova_en] => Engineering Mechanics
[vysledek_datum] => 2023-05-09T00:00:00+02:00
)
[3] => Array
(
[vysledek_id] => 183868
[vysledek_druh_id] => ARTWOS
[ex_vysledek_id] => 148387
[vysledek_rok] => 2023
[nazev] => Use of computer-aided design and 3D printing for airway management in paediatric patients with a cleft facial defect: a pilot study
[nazev_orig] => Use of computer-aided design and 3D printing for airway management in paediatric patients with a cleft facial defect: a pilot study
[duvernost_udaju_id] => S
[popis] => Use of computer-aided design and 3D printing for airway management in paediatric patients with a cleft facial defect: a pilot study
[popis_orig] => Use of computer-aided design and 3D printing for airway management in paediatric patients with a cleft facial defect: a pilot study
[klicova_slova] => airway management; cleft lip; cleft palate; complications; difficult airway; protective obturator
[klicova_slova_orig] => airway management; cleft lip; cleft palate; complications; difficult airway; protective obturator
[url] => https://www.sciencedirect.com/science/article/abs/pii/S0007091223000752
[oecd_obor_id] => 30200
[odpovedny_utvar_id] => 157
[odpovedny_utvar_nazev] => Institute of Solid Mechanics, Mechatronics and Biomechanics
[odpovedny_utvar_zkratka] => ISMMB
[nadrazena_soucast_id] => 4
[nadrazena_soucast_zkratka] => FME
[nadrazena_soucast_nazev] => Faculty of Mechanical Engineering
[originalni_jazyk] => en
[schvalil_id] => 1594
[schvaleno] => 2023-07-18
[vykazovat_riv] => 1
[vykazovat_riv_zmeny] => 1
[slozka_id] =>
[posledni_diagnostika] =>
[vycet_osob] => KOŠKOVÁ, O.; RICHTROVA, M.; MARCIÁN, P.; JOUKAL, M.; MUSILOVA, T.; JANKU, M.; FABIAN, D.; MATYSKOVA, D.; STOURAC, P.
[pocet_tvurcu] => 9
[tvurci_ids] =>
[poznamka] =>
[typ_nazev] =>
[kod_doi] => 10.1016/j.bja.2023.02.015
[kod_dspace] =>
[rok_vytvoreni] =>
[pocet_zaznamu] =>
[zverejneno] => 1
[prvni_autor] =>
[korespondencni_autor] =>
[posledni_autor] =>
[znamka] =>
[kategorie_nazev] => Publication results
[druh_nazev] => WoS Article
[druh_popis] => Peer-reviewed article included in Web of Science database as as an “Article”, “Review” or “Letter”
[stav] => Approved
[vysledek_kategorie_id] => PV
[vysledek_system_kategorie_id] => PU
[vysledek_stav_id] => 3
[vlozil] => Informační systém Automat
[upravil] => Informační systém Automat
[ins_uid] => 999999
[upd_uid] => 999999
[ins_ts] => 2025-09-22
[upd_ts] => 2025-09-22
[status] => 9
[identifikator] => ISSN 0007-0912
[identifikator_popis] => ISSN - BRITISH JOURNAL OF ANAESTHESIA (GB)
[riv_dodavka_id] => 3342
[riv_dodavka_oznaceni] => RIV24-MZ0-26210___
[riv_dodavka_rok] => 2024
[diagnostika_pocet] => 1
[diagnostika_pocet_chyba] => 1
[diagnostika_pocet_upozorneni] => 0
[diagnostika_pocet_informace] => 0
[citace_text] => KOŠKOVÁ, O.; RICHTROVA, M.; MARCIÁN, P.; JOUKAL, M.; MUSILOVA, T.; JANKU, M.; FABIAN, D.; MATYSKOVA, D.; STOURAC, P. Use of computer-aided design and 3D printing for airway management in paediatric patients with a cleft facial defect: a pilot study. BRITISH JOURNAL OF ANAESTHESIA, 2023, vol. 130, no. 6, p. E469 (E471 p.)ISSN: 0007-0912.
[citace_html] => KOŠKOVÁ, O.; RICHTROVA, M.; MARCIÁN, P.; JOUKAL, M.; MUSILOVA, T.; JANKU, M.; FABIAN, D.; MATYSKOVA, D.; STOURAC, P. Use of computer-aided design and 3D printing for airway management in paediatric patients with a cleft facial defect: a pilot study. BRITISH JOURNAL OF ANAESTHESIA, 2023, vol. 130, no. 6, p. E469 (E471 p.)ISSN: 0007-0912.
[citace_rtf] =>
[citace_bibtex] =>
[vykazano] =>
[vykazano_aspon_jednou] =>
[identifikacni_kod] =>
[neautorsky_vysledek] => 0
[if] => 9.1
[if_q] => 1
[if_m17_q] => 1
[if_m25_q] => 1
[if_d] =>
[if_m17_d] => 1
[if_m25_d] => 1
[if_percentil] => 99.2
[if_m17_percentil] => 94.19
[if_m25_percentil] => 96.095
[ais] => 2.989
[ais_m17_q] => 1
[ais_m25_q] => 1
[ais_m17_d] => 1
[ais_m25_d] => 1
[ais_m17_percentil] => 93.661
[ais_m25_percentil] => 95.513
[jci] => 2.78
[jci_q] => 1
[jci_percentil] => 96.094
[ef] =>
[scopus_sjr] => 2.397
[scopus_sjr_q] => 1
[scopus_sjr_d] =>
[nature_index_group] =>
[incites_times_cited] => 1
[incites_open_access] => 1
[incites_jnci] => 0.47
[incites_is_int_collab] => 0
[incites_is_industry_collab] => 0
[incites_esi_hot_paper] => 0
[incites_esi_highly_cited_paper] => 0
[incites_avg_cnci] => 1.1405
[incites_avg_percentile] => 58.4559
[scival_citations_count] =>
[scival_fwci] => 5.871323
[core_rank] => NA
[oecd_tree_oblast_id] => 30000
[oecd_tree_oblast_nazev] => 3. Medical and Health Sciences
[oecd_tree_obor_id] => 30200
[oecd_tree_obor_nazev] => 3.2 Clinical medicine
[oecd_tree_podobor_id] =>
[oecd_tree_podobor_nazev] =>
[poznamka_metriky] =>
[nazev_en] => Use of computer-aided design and 3D printing for airway management in paediatric patients with a cleft facial defect: a pilot study
[popis_en] => Use of computer-aided design and 3D printing for airway management in paediatric patients with a cleft facial defect: a pilot study
[klicova_slova_en] => airway management; cleft lip; cleft palate; complications; difficult airway; protective obturator
[vysledek_datum] => 2023-05-15T00:00:00+02:00
)
[4] => Array
(
[vysledek_id] => 184015
[vysledek_druh_id] => ARTWOS
[ex_vysledek_id] => 148518
[vysledek_rok] => 2023
[nazev] => Influence of flexoelectricity on interface crack problems under a dynamic load
[nazev_orig] => Influence of flexoelectricity on interface crack problems under a dynamic load
[duvernost_udaju_id] => S
[popis] => In the present paper, the influence of flexoelectricity on behavior of the interface crack between two dissimilar dielectric materials under a dynamic mechanical load is investigated. The induced electric field affects the distribution and evolution of mechanical fields in dielectric materials. Large strain gradients induce the electric polarization in the direct flexoelectricity. Due to the large strain gradients at the crack tip vicinity it is needed to consider the strain gradient theory model. Governing equations in this theory contain higher-order derivatives than in the conventional continuum mechanics approach. The mixed finite element method (FEM) is developed here for a general boundary value problem, where the standard C0 continuous finite elements are applied for independent approximations of displacements and strains. The constraints between them are satisfied by collocation at appropriate internal points in elements. Interface cracks are observed in layered structures frequently due to a poor adhesion of layers. The incorporation of flexoelectricity and micro-inertial effects is needed into the failure analysis of interface cracks in nano-sized structures under dynamic loading. In numerical examples, we discuss the influence of flexoelectricity coefficients as well as the ratio of elastic coefficients and the geometrical size to microstructural (micro-stiffness and micro-inertia) length scale parameters of the bilayer composite on the crack opening displacement, stresses ahead the crack tip and induced electric intensity vector.
[popis_orig] => In the present paper, the influence of flexoelectricity on behavior of the interface crack between two dissimilar dielectric materials under a dynamic mechanical load is investigated. The induced electric field affects the distribution and evolution of mechanical fields in dielectric materials. Large strain gradients induce the electric polarization in the direct flexoelectricity. Due to the large strain gradients at the crack tip vicinity it is needed to consider the strain gradient theory model. Governing equations in this theory contain higher-order derivatives than in the conventional continuum mechanics approach. The mixed finite element method (FEM) is developed here for a general boundary value problem, where the standard C0 continuous finite elements are applied for independent approximations of displacements and strains. The constraints between them are satisfied by collocation at appropriate internal points in elements. Interface cracks are observed in layered structures frequently due to a poor adhesion of layers. The incorporation of flexoelectricity and micro-inertial effects is needed into the failure analysis of interface cracks in nano-sized structures under dynamic loading. In numerical examples, we discuss the influence of flexoelectricity coefficients as well as the ratio of elastic coefficients and the geometrical size to microstructural (micro-stiffness and micro-inertia) length scale parameters of the bilayer composite on the crack opening displacement, stresses ahead the crack tip and induced electric intensity vector.
[klicova_slova] => Direct flexoelectricity; Gradient theory; Micro -inertia effect; A dynamic mechanical load; Induced electric potential
[klicova_slova_orig] => Direct flexoelectricity; Gradient theory; Micro -inertia effect; A dynamic mechanical load; Induced electric potential
[url] => https://www.sciencedirect.com/science/article/pii/S0013794423003119?via%3Dihub
[oecd_obor_id] => 20300
[odpovedny_utvar_id] => 157
[odpovedny_utvar_nazev] => Institute of Solid Mechanics, Mechatronics and Biomechanics
[odpovedny_utvar_zkratka] => ISMMB
[nadrazena_soucast_id] => 4
[nadrazena_soucast_zkratka] => FME
[nadrazena_soucast_nazev] => Faculty of Mechanical Engineering
[originalni_jazyk] => en
[schvalil_id] => 86456
[schvaleno] => 2023-10-03
[vykazovat_riv] => 1
[vykazovat_riv_zmeny] => 1
[slozka_id] =>
[posledni_diagnostika] =>
[vycet_osob] => SLÁDEK, J.; SLÁDEK, V.; HRYTSYNA, M.; PROFANT, T.
[pocet_tvurcu] => 4
[tvurci_ids] =>
[poznamka] =>
[typ_nazev] =>
[kod_doi] => 10.1016/j.engfracmech.2023.109353
[kod_dspace] =>
[rok_vytvoreni] =>
[pocet_zaznamu] =>
[zverejneno] => 1
[prvni_autor] =>
[korespondencni_autor] =>
[posledni_autor] =>
[znamka] =>
[kategorie_nazev] => Publication results
[druh_nazev] => WoS Article
[druh_popis] => Peer-reviewed article included in Web of Science database as as an “Article”, “Review” or “Letter”
[stav] => Approved
[vysledek_kategorie_id] => PV
[vysledek_system_kategorie_id] => PU
[vysledek_stav_id] => 3
[vlozil] => Informační systém Automat
[upravil] => Informační systém Automat
[ins_uid] => 999999
[upd_uid] => 999999
[ins_ts] => 2025-09-22
[upd_ts] => 2025-09-22
[status] => 9
[identifikator] => ISSN 0013-7944
[identifikator_popis] => ISSN - ENGINEERING FRACTURE MECHANICS (GB)
[riv_dodavka_id] => 3367
[riv_dodavka_oznaceni] => RIV24-MSM-26210___
[riv_dodavka_rok] => 2024
[diagnostika_pocet] => 1
[diagnostika_pocet_chyba] => 0
[diagnostika_pocet_upozorneni] => 0
[diagnostika_pocet_informace] => 1
[citace_text] => SLÁDEK, J.; SLÁDEK, V.; HRYTSYNA, M.; PROFANT, T. Influence of flexoelectricity on interface crack problems under a dynamic load. ENGINEERING FRACTURE MECHANICS, 2023, vol. 288, no. 4.8.2023, p. 109353-109353. ISSN: 0013-7944.
[citace_html] => SLÁDEK, J.; SLÁDEK, V.; HRYTSYNA, M.; PROFANT, T. Influence of flexoelectricity on interface crack problems under a dynamic load. ENGINEERING FRACTURE MECHANICS, 2023, vol. 288, no. 4.8.2023, p. 109353-109353. ISSN: 0013-7944.
[citace_rtf] =>
[citace_bibtex] => @article{BUT184015,
author="Ján {Sládek} and Vladimír {Sládek} and Maryan {Hrytsyna} and Tomáš {Profant}",
title="Influence of flexoelectricity on interface crack problems under a dynamic load",
journal="ENGINEERING FRACTURE MECHANICS",
year="2023",
volume="288",
number="4.8.2023",
pages="109353--109353",
doi="10.1016/j.engfracmech.2023.109353",
issn="0013-7944",
url="https://www.sciencedirect.com/science/article/pii/S0013794423003119?via%3Dihub"
}
[vykazano] =>
[vykazano_aspon_jednou] =>
[identifikacni_kod] =>
[neautorsky_vysledek] => 0
[if] => 4.7
[if_q] => 1
[if_m17_q] => 1
[if_m25_q] => 1
[if_d] =>
[if_m17_d] => 2
[if_m25_d] => 2
[if_percentil] => 88.5
[if_m17_percentil] => 86.991
[if_m25_percentil] => 89.136
[ais] => 0.929
[ais_m17_q] => 1
[ais_m25_q] => 1
[ais_m17_d] => 2
[ais_m25_d] => 1
[ais_m17_percentil] => 90.125
[ais_m25_percentil] => 91.646
[jci] => 1.18
[jci_q] => 1
[jci_percentil] => 85.588
[ef] =>
[scopus_sjr] => 1.232
[scopus_sjr_q] => 1
[scopus_sjr_d] =>
[nature_index_group] =>
[incites_times_cited] => 3
[incites_open_access] => 0
[incites_jnci] => 0.31
[incites_is_int_collab] => 1
[incites_is_industry_collab] => 0
[incites_esi_hot_paper] => 0
[incites_esi_highly_cited_paper] => 0
[incites_avg_cnci] => 0.3877
[incites_avg_percentile] => 29.8214
[scival_citations_count] => 1
[scival_fwci] => 1.40337
[core_rank] => NA
[oecd_tree_oblast_id] => 20000
[oecd_tree_oblast_nazev] => 2. Engineering and Technology
[oecd_tree_obor_id] => 20300
[oecd_tree_obor_nazev] => 2.3 Mechanical engineering
[oecd_tree_podobor_id] =>
[oecd_tree_podobor_nazev] =>
[poznamka_metriky] =>
[nazev_en] => Influence of flexoelectricity on interface crack problems under a dynamic load
[popis_en] => In the present paper, the influence of flexoelectricity on behavior of the interface crack between two dissimilar dielectric materials under a dynamic mechanical load is investigated. The induced electric field affects the distribution and evolution of mechanical fields in dielectric materials. Large strain gradients induce the electric polarization in the direct flexoelectricity. Due to the large strain gradients at the crack tip vicinity it is needed to consider the strain gradient theory model. Governing equations in this theory contain higher-order derivatives than in the conventional continuum mechanics approach. The mixed finite element method (FEM) is developed here for a general boundary value problem, where the standard C0 continuous finite elements are applied for independent approximations of displacements and strains. The constraints between them are satisfied by collocation at appropriate internal points in elements. Interface cracks are observed in layered structures frequently due to a poor adhesion of layers. The incorporation of flexoelectricity and micro-inertial effects is needed into the failure analysis of interface cracks in nano-sized structures under dynamic loading. In numerical examples, we discuss the influence of flexoelectricity coefficients as well as the ratio of elastic coefficients and the geometrical size to microstructural (micro-stiffness and micro-inertia) length scale parameters of the bilayer composite on the crack opening displacement, stresses ahead the crack tip and induced electric intensity vector.
[klicova_slova_en] => Direct flexoelectricity; Gradient theory; Micro -inertia effect; A dynamic mechanical load; Induced electric potential
[vysledek_datum] => 2023-08-04T00:00:00+02:00
)
[5] => Array
(
[vysledek_id] => 184016
[vysledek_druh_id] => ARTWOS
[ex_vysledek_id] => 148519
[vysledek_rok] => 2023
[nazev] => Assessment of amplitude factors of asymptotic expansion at crack tip in flexoelectric solid under mode I and II loadings
[nazev_orig] => Assessment of amplitude factors of asymptotic expansion at crack tip in flexoelectric solid under mode I and II loadings
[duvernost_udaju_id] => S
[popis] => The direct flexoelectric effect is a consequence of the polarization of the material, which is proportional to the strain gradients. The strain gradients are prominent near material defects, especially at the crack tips, where the flexoelectric effect redistributes the stress field and consequently influences the crack propagation. The flexoelectricity is a size dependent effect, i.e. it depends on an internal material length parameter as the additional material characteristic. This fact makes the equilibrium, constitutive, and boundary equations complicated as well as the asymptotic solution at the crack tip contrary to the asymptotic solution in the linear elastic fracture mechanics. The matched asymptotic expansion method is applied to derive the expressions for the amplitude factors that appear in the flexoelectric asymptotic solution for the crack as functions of the stress intensity factors in the loadings of mode I or mode II. The application of the matched asymptotic expansion method is conditioned by the knowledge of the so-called boundary layer, which is evaluated from the energetic criteria at the crack tip.
[popis_orig] => The direct flexoelectric effect is a consequence of the polarization of the material, which is proportional to the strain gradients. The strain gradients are prominent near material defects, especially at the crack tips, where the flexoelectric effect redistributes the stress field and consequently influences the crack propagation. The flexoelectricity is a size dependent effect, i.e. it depends on an internal material length parameter as the additional material characteristic. This fact makes the equilibrium, constitutive, and boundary equations complicated as well as the asymptotic solution at the crack tip contrary to the asymptotic solution in the linear elastic fracture mechanics. The matched asymptotic expansion method is applied to derive the expressions for the amplitude factors that appear in the flexoelectric asymptotic solution for the crack as functions of the stress intensity factors in the loadings of mode I or mode II. The application of the matched asymptotic expansion method is conditioned by the knowledge of the so-called boundary layer, which is evaluated from the energetic criteria at the crack tip.
[klicova_slova] => Direct flexoelectricity; Gradient theory; Crack; Asymptotic expansion; And amplitude factors
[klicova_slova_orig] => Direct flexoelectricity; Gradient theory; Crack; Asymptotic expansion; And amplitude factors
[url] => https://www.sciencedirect.com/science/article/pii/S0020768323000914?via%3Dihub
[oecd_obor_id] => 20301
[odpovedny_utvar_id] => 157
[odpovedny_utvar_nazev] => Institute of Solid Mechanics, Mechatronics and Biomechanics
[odpovedny_utvar_zkratka] => ISMMB
[nadrazena_soucast_id] => 4
[nadrazena_soucast_zkratka] => FME
[nadrazena_soucast_nazev] => Faculty of Mechanical Engineering
[originalni_jazyk] => en
[schvalil_id] => 86456
[schvaleno] => 2023-10-03
[vykazovat_riv] => 1
[vykazovat_riv_zmeny] => 1
[slozka_id] =>
[posledni_diagnostika] =>
[vycet_osob] => PROFANT, T.; SLÁDEK, J.; SLÁDEK, V.; KOTOUL, M.
[pocet_tvurcu] => 4
[tvurci_ids] =>
[poznamka] =>
[typ_nazev] =>
[kod_doi] => 10.1016/j.ijsolstr.2023.112194
[kod_dspace] =>
[rok_vytvoreni] =>
[pocet_zaznamu] =>
[zverejneno] => 1
[prvni_autor] =>
[korespondencni_autor] =>
[posledni_autor] =>
[znamka] =>
[kategorie_nazev] => Publication results
[druh_nazev] => WoS Article
[druh_popis] => Peer-reviewed article included in Web of Science database as as an “Article”, “Review” or “Letter”
[stav] => Approved
[vysledek_kategorie_id] => PV
[vysledek_system_kategorie_id] => PU
[vysledek_stav_id] => 3
[vlozil] => Informační systém Automat
[upravil] => Informační systém Automat
[ins_uid] => 999999
[upd_uid] => 999999
[ins_ts] => 2025-09-22
[upd_ts] => 2025-09-22
[status] => 9
[identifikator] => ISSN 0020-7683
[identifikator_popis] => ISSN - INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES (GB)
[riv_dodavka_id] => 3367
[riv_dodavka_oznaceni] => RIV24-MSM-26210___
[riv_dodavka_rok] => 2024
[diagnostika_pocet] => 2
[diagnostika_pocet_chyba] => 1
[diagnostika_pocet_upozorneni] => 0
[diagnostika_pocet_informace] => 1
[citace_text] => PROFANT, T.; SLÁDEK, J.; SLÁDEK, V.; KOTOUL, M. Assessment of amplitude factors of asymptotic expansion at crack tip in flexoelectric solid under mode I and II loadings. INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 2023, vol. 269, no. 1.5.2023, p. 112194-112194. ISSN: 1879-2146.
[citace_html] => PROFANT, T.; SLÁDEK, J.; SLÁDEK, V.; KOTOUL, M. Assessment of amplitude factors of asymptotic expansion at crack tip in flexoelectric solid under mode I and II loadings. INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 2023, vol. 269, no. 1.5.2023, p. 112194-112194. ISSN: 1879-2146.
[citace_rtf] =>
[citace_bibtex] => @article{BUT184016,
author="Tomáš {Profant} and Ján {Sládek} and Vladimír {Sládek} and Michal {Kotoul}",
title="Assessment of amplitude factors of asymptotic expansion at crack tip in flexoelectric solid under mode I and II loadings",
journal="INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES",
year="2023",
volume="269",
number="1.5.2023",
pages="112194--112194",
doi="10.1016/j.ijsolstr.2023.112194",
issn="0020-7683",
url="https://www.sciencedirect.com/science/article/pii/S0020768323000914?via%3Dihub"
}
[vykazano] =>
[vykazano_aspon_jednou] =>
[identifikacni_kod] =>
[neautorsky_vysledek] => 0
[if] => 3.4
[if_q] => 1
[if_m17_q] => 1
[if_m25_q] => 1
[if_d] =>
[if_m17_d] => 3
[if_m25_d] => 2
[if_percentil] => 77.4
[if_m17_percentil] => 77.586
[if_m25_percentil] => 81.425
[ais] => 0.828
[ais_m17_q] => 1
[ais_m25_q] => 1
[ais_m17_d] => 2
[ais_m25_d] => 2
[ais_m17_percentil] => 83.856
[ais_m25_percentil] => 85.835
[jci] => 0.87
[jci_q] => 2
[jci_percentil] => 73.235
[ef] =>
[scopus_sjr] => 0.988
[scopus_sjr_q] => 1
[scopus_sjr_d] =>
[nature_index_group] =>
[incites_times_cited] => 17
[incites_open_access] => 0
[incites_jnci] => 2.62
[incites_is_int_collab] => 1
[incites_is_industry_collab] => 0
[incites_esi_hot_paper] => 0
[incites_esi_highly_cited_paper] => 0
[incites_avg_cnci] => 2.197
[incites_avg_percentile] => 89.0535
[scival_citations_count] => 16
[scival_fwci] => 1.686018
[core_rank] => NA
[oecd_tree_oblast_id] => 20000
[oecd_tree_oblast_nazev] => 2. Engineering and Technology
[oecd_tree_obor_id] => 20300
[oecd_tree_obor_nazev] => 2.3 Mechanical engineering
[oecd_tree_podobor_id] => 20301
[oecd_tree_podobor_nazev] => Mechanical engineering
[poznamka_metriky] =>
[nazev_en] => Assessment of amplitude factors of asymptotic expansion at crack tip in flexoelectric solid under mode I and II loadings
[popis_en] => The direct flexoelectric effect is a consequence of the polarization of the material, which is proportional to the strain gradients. The strain gradients are prominent near material defects, especially at the crack tips, where the flexoelectric effect redistributes the stress field and consequently influences the crack propagation. The flexoelectricity is a size dependent effect, i.e. it depends on an internal material length parameter as the additional material characteristic. This fact makes the equilibrium, constitutive, and boundary equations complicated as well as the asymptotic solution at the crack tip contrary to the asymptotic solution in the linear elastic fracture mechanics. The matched asymptotic expansion method is applied to derive the expressions for the amplitude factors that appear in the flexoelectric asymptotic solution for the crack as functions of the stress intensity factors in the loadings of mode I or mode II. The application of the matched asymptotic expansion method is conditioned by the knowledge of the so-called boundary layer, which is evaluated from the energetic criteria at the crack tip.
[klicova_slova_en] => Direct flexoelectricity; Gradient theory; Crack; Asymptotic expansion; And amplitude factors
[vysledek_datum] => 2023-05-01T00:00:00+02:00
)
[6] => Array
(
[vysledek_id] => 184018
[vysledek_druh_id] => ARTWOS
[ex_vysledek_id] => 148521
[vysledek_rok] => 2023
[nazev] => Asymptotic solutions for interface cracks between two dissimilar flexoelectric materials
[nazev_orig] => Asymptotic solutions for interface cracks between two dissimilar flexoelectric materials
[duvernost_udaju_id] => S
[popis] => It is developed the procedure of the assessment of the amplitude factors in the asymptotic solution for the interface crack between two flexoelectric materials. The stress exponents with the appropriate eigenvectors of the regular and auxiliary solutions are evaluated from the eigenvalue problem assembled from the boundary conditions prevailing at the tip of the crack. The amplitude factors of the asymptotic solution are computed from the two-state integrals in which the regular, auxiliary, and finite element solution represents the independent equilibrium states. The obtained results show the capability of the two-state integrals to extract the dominant terms of the asymptotic solution from the weak solution of the fracture problem represented by the finite element method. The amplitude factors representing the most singular terms of the asymptotic solution at the crack tip are quantities playing an important role in the problems of crack stability criterions.
[popis_orig] => It is developed the procedure of the assessment of the amplitude factors in the asymptotic solution for the interface crack between two flexoelectric materials. The stress exponents with the appropriate eigenvectors of the regular and auxiliary solutions are evaluated from the eigenvalue problem assembled from the boundary conditions prevailing at the tip of the crack. The amplitude factors of the asymptotic solution are computed from the two-state integrals in which the regular, auxiliary, and finite element solution represents the independent equilibrium states. The obtained results show the capability of the two-state integrals to extract the dominant terms of the asymptotic solution from the weak solution of the fracture problem represented by the finite element method. The amplitude factors representing the most singular terms of the asymptotic solution at the crack tip are quantities playing an important role in the problems of crack stability criterions.
[klicova_slova] => Dielectric material; gradient theory; flexoelectricity; asymptotic solution; mixed FEM
[klicova_slova_orig] => Dielectric material; gradient theory; flexoelectricity; asymptotic solution; mixed FEM
[url] => https://www.tandfonline.com/doi/full/10.1080/15376494.2023.2226136
[oecd_obor_id] => 20500
[odpovedny_utvar_id] => 157
[odpovedny_utvar_nazev] => Institute of Solid Mechanics, Mechatronics and Biomechanics
[odpovedny_utvar_zkratka] => ISMMB
[nadrazena_soucast_id] => 4
[nadrazena_soucast_zkratka] => FME
[nadrazena_soucast_nazev] => Faculty of Mechanical Engineering
[originalni_jazyk] => en
[schvalil_id] => 86456
[schvaleno] => 2023-10-03
[vykazovat_riv] => 1
[vykazovat_riv_zmeny] => 1
[slozka_id] =>
[posledni_diagnostika] =>
[vycet_osob] => PROFANT, T.; SLÁDEK, J.; SLÁDEK, V.
[pocet_tvurcu] => 3
[tvurci_ids] =>
[poznamka] =>
[typ_nazev] =>
[kod_doi] => 10.1080/15376494.2023.2226136
[kod_dspace] =>
[rok_vytvoreni] =>
[pocet_zaznamu] =>
[zverejneno] => 1
[prvni_autor] =>
[korespondencni_autor] =>
[posledni_autor] =>
[znamka] =>
[kategorie_nazev] => Publication results
[druh_nazev] => WoS Article
[druh_popis] => Peer-reviewed article included in Web of Science database as as an “Article”, “Review” or “Letter”
[stav] => Approved
[vysledek_kategorie_id] => PV
[vysledek_system_kategorie_id] => PU
[vysledek_stav_id] => 3
[vlozil] => Informační systém Automat
[upravil] => Informační systém Automat
[ins_uid] => 999999
[upd_uid] => 999999
[ins_ts] => 2025-09-22
[upd_ts] => 2025-09-22
[status] => 9
[identifikator] => ISSN 1537-6494
[identifikator_popis] => ISSN - MECHANICS OF ADVANCED MATERIALS AND STRUCTURES (GB)
[riv_dodavka_id] => 3367
[riv_dodavka_oznaceni] => RIV24-MSM-26210___
[riv_dodavka_rok] => 2024
[diagnostika_pocet] => 3
[diagnostika_pocet_chyba] => 0
[diagnostika_pocet_upozorneni] => 0
[diagnostika_pocet_informace] => 3
[citace_text] => PROFANT, T.; SLÁDEK, J.; SLÁDEK, V. Asymptotic solutions for interface cracks between two dissimilar flexoelectric materials. MECHANICS OF ADVANCED MATERIALS AND STRUCTURES, 2023, no. 22.6.2023, p. 112194-112194. ISSN: 1537-6494.
[citace_html] => PROFANT, T.; SLÁDEK, J.; SLÁDEK, V. Asymptotic solutions for interface cracks between two dissimilar flexoelectric materials. MECHANICS OF ADVANCED MATERIALS AND STRUCTURES, 2023, no. 22.6.2023, p. 112194-112194. ISSN: 1537-6494.
[citace_rtf] =>
[citace_bibtex] => @article{BUT184018,
author="Tomáš {Profant} and Ján {Sládek} and Vladimír {Sládek}",
title="Asymptotic solutions for interface cracks between two dissimilar flexoelectric materials",
journal="MECHANICS OF ADVANCED MATERIALS AND STRUCTURES",
year="2023",
number="22.6.2023",
pages="112194--112194",
doi="10.1080/15376494.2023.2226136",
issn="1537-6494",
url="https://www.tandfonline.com/doi/full/10.1080/15376494.2023.2226136"
}
[vykazano] =>
[vykazano_aspon_jednou] =>
[identifikacni_kod] =>
[neautorsky_vysledek] => 0
[if] => 3.6
[if_q] => 1
[if_m17_q] => 1
[if_m25_q] => 1
[if_d] =>
[if_m17_d] => 2
[if_m25_d] => 2
[if_percentil] => 82.9
[if_m17_percentil] => 80.408
[if_m25_percentil] => 83.528
[ais] => 0.429
[ais_m17_q] => 2
[ais_m25_q] => 2
[ais_m17_d] => 5
[ais_m25_d] => 5
[ais_m17_percentil] => 51.567
[ais_m25_percentil] => 58.717
[jci] => 0.75
[jci_q] => 2
[jci_percentil] => 69.737
[ef] =>
[scopus_sjr] => 0.615
[scopus_sjr_q] => 2
[scopus_sjr_d] =>
[nature_index_group] =>
[incites_times_cited] => 7
[incites_open_access] => 0
[incites_jnci] => 0.85
[incites_is_int_collab] => 1
[incites_is_industry_collab] => 0
[incites_esi_hot_paper] => 0
[incites_esi_highly_cited_paper] => 0
[incites_avg_cnci] => 0.8257
[incites_avg_percentile] => 57.740925
[scival_citations_count] => 3
[scival_fwci] => 1.581691
[core_rank] => NA
[oecd_tree_oblast_id] => 20000
[oecd_tree_oblast_nazev] => 2. Engineering and Technology
[oecd_tree_obor_id] => 20500
[oecd_tree_obor_nazev] => 2.5 Materials engineering
[oecd_tree_podobor_id] =>
[oecd_tree_podobor_nazev] =>
[poznamka_metriky] =>
[nazev_en] => Asymptotic solutions for interface cracks between two dissimilar flexoelectric materials
[popis_en] => It is developed the procedure of the assessment of the amplitude factors in the asymptotic solution for the interface crack between two flexoelectric materials. The stress exponents with the appropriate eigenvectors of the regular and auxiliary solutions are evaluated from the eigenvalue problem assembled from the boundary conditions prevailing at the tip of the crack. The amplitude factors of the asymptotic solution are computed from the two-state integrals in which the regular, auxiliary, and finite element solution represents the independent equilibrium states. The obtained results show the capability of the two-state integrals to extract the dominant terms of the asymptotic solution from the weak solution of the fracture problem represented by the finite element method. The amplitude factors representing the most singular terms of the asymptotic solution at the crack tip are quantities playing an important role in the problems of crack stability criterions.
[klicova_slova_en] => Dielectric material; gradient theory; flexoelectricity; asymptotic solution; mixed FEM
[vysledek_datum] => 2023-05-01T00:00:00+02:00
)
[7] => Array
(
[vysledek_id] => 184047
[vysledek_druh_id] => CONPA
[ex_vysledek_id] => 148550
[vysledek_rok] => 2023
[nazev] => Comparison of finite element simulation of tungsten nanoindentation with Berkovich and conical indenter
[nazev_orig] => Comparison of finite element simulation of tungsten nanoindentation with Berkovich and conical indenter
[duvernost_udaju_id] => S
[popis] => The Finite Element Method (FEM) was used to study the difference between using Berkovich and conical indenters in nanoindentation test of tungsten specimen. The study was aimed to determine the modulus of elasticity of a tested specimen and how it changes with different indenter. The FEM analysis also revealed that the modulus of elasticity was sensitive to the dimensions of both specimen and the indenter for which were made several numerical calculations with different dimensions.
[popis_orig] => The Finite Element Method (FEM) was used to study the difference between using Berkovich and conical indenters in nanoindentation test of tungsten specimen. The study was aimed to determine the modulus of elasticity of a tested specimen and how it changes with different indenter. The FEM analysis also revealed that the modulus of elasticity was sensitive to the dimensions of both specimen and the indenter for which were made several numerical calculations with different dimensions.
[klicova_slova] => Nanoindentation; FEM; Berkovich indenter; conical indenter; tungsten
[klicova_slova_orig] => Nanoindentation; FEM; Berkovich indenter; conical indenter; tungsten
[url] => https://www.engmech.cz/improc/2023/063.pdf
[oecd_obor_id] => 20301
[odpovedny_utvar_id] => 157
[odpovedny_utvar_nazev] => Institute of Solid Mechanics, Mechatronics and Biomechanics
[odpovedny_utvar_zkratka] => ISMMB
[nadrazena_soucast_id] => 4
[nadrazena_soucast_zkratka] => FME
[nadrazena_soucast_nazev] => Faculty of Mechanical Engineering
[originalni_jazyk] => en
[schvalil_id] => 1594
[schvaleno] => 2024-01-15
[vykazovat_riv] => 1
[vykazovat_riv_zmeny] => 1
[slozka_id] =>
[posledni_diagnostika] =>
[vycet_osob] => FIALA, L.; BALLO, I.; KOVÁŘ, J.; FUIS, V.
[pocet_tvurcu] => 4
[tvurci_ids] =>
[poznamka] =>
[typ_nazev] =>
[kod_doi] => 10.21495/em2023-63
[kod_dspace] =>
[rok_vytvoreni] =>
[pocet_zaznamu] =>
[zverejneno] => 1
[prvni_autor] =>
[korespondencni_autor] =>
[posledni_autor] =>
[znamka] =>
[kategorie_nazev] => Publication results
[druh_nazev] => Paper in proceedings (conference paper)
[druh_popis] => Paper in proceedings (conference paper)
[stav] => Approved
[vysledek_kategorie_id] => PV
[vysledek_system_kategorie_id] => PU
[vysledek_stav_id] => 3
[vlozil] => Informační systém Automat
[upravil] => Informační systém Automat
[ins_uid] => 999999
[upd_uid] => 999999
[ins_ts] => 2025-09-22
[upd_ts] => 2025-09-22
[status] => 9
[identifikator] => ISBN 978-80-87012-84-0 ISSN 1805-8248
[identifikator_popis] => ISBN - ENGINEERING MECHANICS 2023 ISSN - Engineering Mechanics (CZ)
[riv_dodavka_id] => 3367
[riv_dodavka_oznaceni] => RIV24-MSM-26210___
[riv_dodavka_rok] => 2024
[diagnostika_pocet] => 0
[diagnostika_pocet_chyba] => 0
[diagnostika_pocet_upozorneni] => 0
[diagnostika_pocet_informace] => 0
[citace_text] => FIALA, L.; BALLO, I.; KOVÁŘ, J.; FUIS, V. Comparison of finite element simulation of tungsten nanoindentation with Berkovich and conical indenter. In ENGINEERING MECHANICS 2023. Engineering Mechanics. Praha: 2023. p. 63-66. ISBN: 978-80-87012-84-0. ISSN: 1805-8248.
[citace_html] => FIALA, L.; BALLO, I.; KOVÁŘ, J.; FUIS, V. Comparison of finite element simulation of tungsten nanoindentation with Berkovich and conical indenter. In ENGINEERING MECHANICS 2023. Engineering Mechanics. Praha: 2023. p. 63-66. ISBN: 978-80-87012-84-0. ISSN: 1805-8248.
[citace_rtf] =>
[citace_bibtex] => @inproceedings{BUT184047,
author="Lukáš {Fiala} and Igor {Ballo} and Jaroslav {Kovář} and Vladimír {Fuis}",
title="Comparison of finite element simulation of tungsten nanoindentation with Berkovich and conical indenter",
booktitle="ENGINEERING MECHANICS 2023",
year="2023",
journal="Engineering Mechanics",
pages="63--66",
address="Praha",
doi="10.21495/em2023-63",
isbn="978-80-87012-84-0",
issn="1805-8248",
url="https://www.engmech.cz/improc/2023/063.pdf"
}
[vykazano] =>
[vykazano_aspon_jednou] =>
[identifikacni_kod] =>
[neautorsky_vysledek] => 0
[if] =>
[if_q] =>
[if_m17_q] =>
[if_m25_q] =>
[if_d] =>
[if_m17_d] =>
[if_m25_d] =>
[if_percentil] =>
[if_m17_percentil] =>
[if_m25_percentil] =>
[ais] =>
[ais_m17_q] =>
[ais_m25_q] =>
[ais_m17_d] =>
[ais_m25_d] =>
[ais_m17_percentil] =>
[ais_m25_percentil] =>
[jci] =>
[jci_q] =>
[jci_percentil] =>
[ef] =>
[scopus_sjr] =>
[scopus_sjr_q] =>
[scopus_sjr_d] =>
[nature_index_group] =>
[incites_times_cited] =>
[incites_open_access] =>
[incites_jnci] =>
[incites_is_int_collab] =>
[incites_is_industry_collab] =>
[incites_esi_hot_paper] =>
[incites_esi_highly_cited_paper] =>
[incites_avg_cnci] =>
[incites_avg_percentile] =>
[scival_citations_count] =>
[scival_fwci] =>
[core_rank] => NA
[oecd_tree_oblast_id] => 20000
[oecd_tree_oblast_nazev] => 2. Engineering and Technology
[oecd_tree_obor_id] => 20300
[oecd_tree_obor_nazev] => 2.3 Mechanical engineering
[oecd_tree_podobor_id] => 20301
[oecd_tree_podobor_nazev] => Mechanical engineering
[poznamka_metriky] =>
[nazev_en] => Comparison of finite element simulation of tungsten nanoindentation with Berkovich and conical indenter
[popis_en] => The Finite Element Method (FEM) was used to study the difference between using Berkovich and conical indenters in nanoindentation test of tungsten specimen. The study was aimed to determine the modulus of elasticity of a tested specimen and how it changes with different indenter. The FEM analysis also revealed that the modulus of elasticity was sensitive to the dimensions of both specimen and the indenter for which were made several numerical calculations with different dimensions.
[klicova_slova_en] => Nanoindentation; FEM; Berkovich indenter; conical indenter; tungsten
[vysledek_datum] => 2023-05-09T00:00:00+02:00
)
[8] => Array
(
[vysledek_id] => 184379
[vysledek_druh_id] => CONPAX
[ex_vysledek_id] => 148801
[vysledek_rok] => 2023
[nazev] => MediaPipe and Its Suitability for Sign Language Recognition
[nazev_orig] => MediaPipe and Its Suitability for Sign Language Recognition
[duvernost_udaju_id] => S
[popis] => The paper presents the framework MediaPipe as a tool to extract pose features for the task of
word-level isolated sign language recognition. It tests the framework’s suitability on the state-of-the-art sign
language dataset AUTSL. Extracted sequences of pose features are classified by the Long Short-Term
Memory recurrent neural network constructed with the TensorFlow computational library. The paper
describes the proposed method flow, preprocessing of the extracted features, and training. Obtained results
are then validated on test datasets, and the impact of face landmarks is evaluated. The top-1 accuracy with
face landmarks is 49.89 %, while 53.21 % without them.
[popis_orig] => The paper presents the framework MediaPipe as a tool to extract pose features for the task of
word-level isolated sign language recognition. It tests the framework’s suitability on the state-of-the-art sign
language dataset AUTSL. Extracted sequences of pose features are classified by the Long Short-Term
Memory recurrent neural network constructed with the TensorFlow computational library. The paper
describes the proposed method flow, preprocessing of the extracted features, and training. Obtained results
are then validated on test datasets, and the impact of face landmarks is evaluated. The top-1 accuracy with
face landmarks is 49.89 %, while 53.21 % without them.
[klicova_slova] => Sign language recognition; MediaPipe; Long Short-Term Memory; neural network;
classification
[klicova_slova_orig] => Sign language recognition; MediaPipe; Long Short-Term Memory; neural network;
classification
[url] => https://www.engmech.cz/improc/2023/251.pdf
[oecd_obor_id] => 10201
[odpovedny_utvar_id] => 157
[odpovedny_utvar_nazev] => Institute of Solid Mechanics, Mechatronics and Biomechanics
[odpovedny_utvar_zkratka] => ISMMB
[nadrazena_soucast_id] => 4
[nadrazena_soucast_zkratka] => FME
[nadrazena_soucast_nazev] => Faculty of Mechanical Engineering
[originalni_jazyk] => en
[schvalil_id] => 3072
[schvaleno] => 2023-09-04
[vykazovat_riv] => 1
[vykazovat_riv_zmeny] => 1
[slozka_id] =>
[posledni_diagnostika] =>
[vycet_osob] => ŠNAJDER, J.; KREJSA, J.
[pocet_tvurcu] => 2
[tvurci_ids] =>
[poznamka] =>
[typ_nazev] =>
[kod_doi] =>
[kod_dspace] =>
[rok_vytvoreni] =>
[pocet_zaznamu] =>
[zverejneno] => 1
[prvni_autor] =>
[korespondencni_autor] =>
[posledni_autor] =>
[znamka] =>
[kategorie_nazev] => Publication results
[druh_nazev] => Paper in proceedings outside WoS and Scopus
[druh_popis] => Paper in proceedings outside WoS and Scopus
[stav] => Approved
[vysledek_kategorie_id] => PV
[vysledek_system_kategorie_id] => PU
[vysledek_stav_id] => 3
[vlozil] => Informační systém Automat
[upravil] => Informační systém Automat
[ins_uid] => 999999
[upd_uid] => 999999
[ins_ts] => 2025-09-22
[upd_ts] => 2025-09-22
[status] => 9
[identifikator] => ISBN ISBN 978-80-87012-84 ISSN 1805-8256
[identifikator_popis] => ISBN - ENGINEERING MECHANICS 2023 ISSN - Engineering Mechanics .... (CZ)
[riv_dodavka_id] => 3367
[riv_dodavka_oznaceni] => RIV24-MSM-26210___
[riv_dodavka_rok] => 2024
[diagnostika_pocet] => 0
[diagnostika_pocet_chyba] => 0
[diagnostika_pocet_upozorneni] => 0
[diagnostika_pocet_informace] => 0
[citace_text] => ŠNAJDER, J.; KREJSA, J. MediaPipe and Its Suitability for Sign Language Recognition. ENGINEERING MECHANICS 2023. Engineering Mechanics .... First edition. Prague: Institute of Thermomechanics of the Czech Academy of Sciences, 2023. p. 251-254. ISBN: ISBN 978-80-87012-84. ISSN: 1805-8256.
[citace_html] => ŠNAJDER, J.; KREJSA, J. MediaPipe and Its Suitability for Sign Language Recognition. ENGINEERING MECHANICS 2023. Engineering Mechanics .... First edition. Prague: Institute of Thermomechanics of the Czech Academy of Sciences, 2023. p. 251-254. ISBN: ISBN 978-80-87012-84. ISSN: 1805-8256.
[citace_rtf] =>
[citace_bibtex] => @inproceedings{BUT184379,
author="Jan {Šnajder} and Jiří {Krejsa}",
title="MediaPipe and Its Suitability for Sign Language Recognition",
booktitle="ENGINEERING MECHANICS 2023",
year="2023",
series="First edition",
journal="Engineering Mechanics ....",
number="1",
pages="251--254",
publisher="Institute of Thermomechanics of the Czech Academy of Sciences",
address="Prague",
isbn="ISBN 978-80-87012-84",
issn="1805-8256",
url="https://www.engmech.cz/improc/2023/251.pdf"
}
[vykazano] =>
[vykazano_aspon_jednou] =>
[identifikacni_kod] =>
[neautorsky_vysledek] => 0
[if] =>
[if_q] =>
[if_m17_q] =>
[if_m25_q] =>
[if_d] =>
[if_m17_d] =>
[if_m25_d] =>
[if_percentil] =>
[if_m17_percentil] =>
[if_m25_percentil] =>
[ais] =>
[ais_m17_q] =>
[ais_m25_q] =>
[ais_m17_d] =>
[ais_m25_d] =>
[ais_m17_percentil] =>
[ais_m25_percentil] =>
[jci] =>
[jci_q] =>
[jci_percentil] =>
[ef] =>
[scopus_sjr] =>
[scopus_sjr_q] =>
[scopus_sjr_d] =>
[nature_index_group] =>
[incites_times_cited] =>
[incites_open_access] =>
[incites_jnci] =>
[incites_is_int_collab] =>
[incites_is_industry_collab] =>
[incites_esi_hot_paper] =>
[incites_esi_highly_cited_paper] =>
[incites_avg_cnci] =>
[incites_avg_percentile] =>
[scival_citations_count] =>
[scival_fwci] =>
[core_rank] => NA
[oecd_tree_oblast_id] => 10000
[oecd_tree_oblast_nazev] => 1. Natural Sciences
[oecd_tree_obor_id] => 10200
[oecd_tree_obor_nazev] => 1.2 Computer and information sciences
[oecd_tree_podobor_id] => 10201
[oecd_tree_podobor_nazev] => Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)
[poznamka_metriky] =>
[nazev_en] => MediaPipe and Its Suitability for Sign Language Recognition
[popis_en] => The paper presents the framework MediaPipe as a tool to extract pose features for the task of
word-level isolated sign language recognition. It tests the framework’s suitability on the state-of-the-art sign
language dataset AUTSL. Extracted sequences of pose features are classified by the Long Short-Term
Memory recurrent neural network constructed with the TensorFlow computational library. The paper
describes the proposed method flow, preprocessing of the extracted features, and training. Obtained results
are then validated on test datasets, and the impact of face landmarks is evaluated. The top-1 accuracy with
face landmarks is 49.89 %, while 53.21 % without them.
[klicova_slova_en] => Sign language recognition; MediaPipe; Long Short-Term Memory; neural network;
classification
[vysledek_datum] => 2023-05-10T00:00:00+02:00
)
[9] => Array
(
[vysledek_id] => 184395
[vysledek_druh_id] => ARTWOS
[ex_vysledek_id] => 148815
[vysledek_rok] => 2023
[nazev] => Analytical Models for Pose Estimate Variance of Planar Fiducial Markers for Mobile Robot Localisation
[nazev_orig] => Analytical Models for Pose Estimate Variance of Planar Fiducial Markers for Mobile Robot Localisation
[duvernost_udaju_id] => S
[popis] => Planar fiducial markers are commonly used to estimate a pose of a camera relative to the marker. This information can be combined with other sensor data to provide a global or local position estimate of the system in the environment using a state estimator such as the Kalman filter. To achieve accurate estimates, the observation noise covariance matrix must be properly configured to reflect the sensor output's characteristics. However, the observation noise of the pose obtained from planar fiducial markers varies across the measurement range and this fact needs to be taken into account during the sensor fusion to provide a reliable estimate. In this work, we present experimental measurements of the fiducial markers in real and simulation scenarios for 2D pose estimation. Based on these measurements, we propose analytical functions that approximate the variances of pose estimates. We demonstrate the effectiveness of our approach in a 2D robot localisation experiment, where we present a method for estimating covariance model parameters based on user measurements and a technique for fusing pose estimates from multiple markers.
[popis_orig] => Planar fiducial markers are commonly used to estimate a pose of a camera relative to the marker. This information can be combined with other sensor data to provide a global or local position estimate of the system in the environment using a state estimator such as the Kalman filter. To achieve accurate estimates, the observation noise covariance matrix must be properly configured to reflect the sensor output's characteristics. However, the observation noise of the pose obtained from planar fiducial markers varies across the measurement range and this fact needs to be taken into account during the sensor fusion to provide a reliable estimate. In this work, we present experimental measurements of the fiducial markers in real and simulation scenarios for 2D pose estimation. Based on these measurements, we propose analytical functions that approximate the variances of pose estimates. We demonstrate the effectiveness of our approach in a 2D robot localisation experiment, where we present a method for estimating covariance model parameters based on user measurements and a technique for fusing pose estimates from multiple markers.
[klicova_slova] => planar fiducial marker; robot localisation; Kalman filter; observation noise
[klicova_slova_orig] => planar fiducial marker; robot localisation; Kalman filter; observation noise
[url] => https://www.mdpi.com/1424-8220/23/12/5746
[oecd_obor_id] => 21100
[odpovedny_utvar_id] => 157
[odpovedny_utvar_nazev] => Institute of Solid Mechanics, Mechatronics and Biomechanics
[odpovedny_utvar_zkratka] => ISMMB
[nadrazena_soucast_id] => 4
[nadrazena_soucast_zkratka] => FME
[nadrazena_soucast_nazev] => Faculty of Mechanical Engineering
[originalni_jazyk] => en
[schvalil_id] => 3072
[schvaleno] => 2024-03-06
[vykazovat_riv] => 1
[vykazovat_riv_zmeny] => 1
[slozka_id] => 141483
[posledni_diagnostika] =>
[vycet_osob] => ADÁMEK, R.; BRABLC, M.; VÁVRA, P.; DOBOSSY, B.; FORMÁNEK, M.; RADIL, F.
[pocet_tvurcu] => 6
[tvurci_ids] =>
[poznamka] =>
[typ_nazev] =>
[kod_doi] => 10.3390/s23125746
[kod_dspace] => 11012/244965
[rok_vytvoreni] =>
[pocet_zaznamu] =>
[zverejneno] => 1
[prvni_autor] =>
[korespondencni_autor] =>
[posledni_autor] =>
[znamka] =>
[kategorie_nazev] => Publication results
[druh_nazev] => WoS Article
[druh_popis] => Peer-reviewed article included in Web of Science database as as an “Article”, “Review” or “Letter”
[stav] => Approved
[vysledek_kategorie_id] => PV
[vysledek_system_kategorie_id] => PU
[vysledek_stav_id] => 3
[vlozil] => Informační systém Automat
[upravil] => Informační systém Automat
[ins_uid] => 999999
[upd_uid] => 999999
[ins_ts] => 2025-09-22
[upd_ts] => 2025-09-22
[status] => 9
[identifikator] =>
[identifikator_popis] =>
[riv_dodavka_id] => 3367
[riv_dodavka_oznaceni] => RIV24-MSM-26210___
[riv_dodavka_rok] => 2024
[diagnostika_pocet] => 1
[diagnostika_pocet_chyba] => 0
[diagnostika_pocet_upozorneni] => 0
[diagnostika_pocet_informace] => 1
[citace_text] => ADÁMEK, R.; BRABLC, M.; VÁVRA, P.; DOBOSSY, B.; FORMÁNEK, M.; RADIL, F. Analytical Models for Pose Estimate Variance of Planar Fiducial Markers for Mobile Robot Localisation. SENSORS, 2023, vol. 23, no. 12, 20 p. ISSN: 1424-8220.
[citace_html] => ADÁMEK, R.; BRABLC, M.; VÁVRA, P.; DOBOSSY, B.; FORMÁNEK, M.; RADIL, F. Analytical Models for Pose Estimate Variance of Planar Fiducial Markers for Mobile Robot Localisation. SENSORS, 2023, vol. 23, no. 12, 20 p. ISSN: 1424-8220.
[citace_rtf] =>
[citace_bibtex] => @article{BUT184395,
author="Roman {Adámek} and Martin {Brablc} and Patrik {Vávra} and Barnabás {Dobossy} and Martin {Formánek} and Filip {Radil}",
title="Analytical Models for Pose Estimate Variance of Planar Fiducial Markers for Mobile Robot Localisation",
journal="SENSORS",
year="2023",
volume="23",
number="12",
pages="20",
doi="10.3390/s23125746",
url="https://www.mdpi.com/1424-8220/23/12/5746"
}
[vykazano] =>
[vykazano_aspon_jednou] =>
[identifikacni_kod] =>
[neautorsky_vysledek] => 0
[if] => 3.4
[if_q] => 2
[if_m17_q] => 2
[if_m25_q] => 2
[if_d] =>
[if_m17_d] => 4
[if_m25_d] => 3
[if_percentil] => 69.1
[if_m17_percentil] => 64.239
[if_m25_percentil] => 70.684
[ais] => 0.611
[ais_m17_q] => 2
[ais_m25_q] => 2
[ais_m17_d] => 4
[ais_m25_d] => 4
[ais_m17_percentil] => 64.656
[ais_m25_percentil] => 67.436
[jci] => 0.87
[jci_q] => 2
[jci_percentil] => 75
[ef] =>
[scopus_sjr] => 0.786
[scopus_sjr_q] => 1
[scopus_sjr_d] =>
[nature_index_group] =>
[incites_times_cited] => 3
[incites_open_access] => 1
[incites_jnci] => 0.63
[incites_is_int_collab] => 0
[incites_is_industry_collab] => 0
[incites_esi_hot_paper] => 0
[incites_esi_highly_cited_paper] => 0
[incites_avg_cnci] => 0.4592
[incites_avg_percentile] => 36.5232
[scival_citations_count] => 4
[scival_fwci] => 1.519111
[core_rank] => NA
[oecd_tree_oblast_id] => 20000
[oecd_tree_oblast_nazev] => 2. Engineering and Technology
[oecd_tree_obor_id] => 21100
[oecd_tree_obor_nazev] => 2.11 Other engineering and technologies
[oecd_tree_podobor_id] =>
[oecd_tree_podobor_nazev] =>
[poznamka_metriky] =>
[nazev_en] => Analytical Models for Pose Estimate Variance of Planar Fiducial Markers for Mobile Robot Localisation
[popis_en] => Planar fiducial markers are commonly used to estimate a pose of a camera relative to the marker. This information can be combined with other sensor data to provide a global or local position estimate of the system in the environment using a state estimator such as the Kalman filter. To achieve accurate estimates, the observation noise covariance matrix must be properly configured to reflect the sensor output's characteristics. However, the observation noise of the pose obtained from planar fiducial markers varies across the measurement range and this fact needs to be taken into account during the sensor fusion to provide a reliable estimate. In this work, we present experimental measurements of the fiducial markers in real and simulation scenarios for 2D pose estimation. Based on these measurements, we propose analytical functions that approximate the variances of pose estimates. We demonstrate the effectiveness of our approach in a 2D robot localisation experiment, where we present a method for estimating covariance model parameters based on user measurements and a technique for fusing pose estimates from multiple markers.
[klicova_slova_en] => planar fiducial marker; robot localisation; Kalman filter; observation noise
[vysledek_datum] => 2023-06-20T00:00:00+02:00
)
[10] => Array
(
[vysledek_id] => 184404
[vysledek_druh_id] => CONPAX
[ex_vysledek_id] => 148829
[vysledek_rok] => 2022
[nazev] => Evaluation of damage accumulation for ductile materials
[nazev_orig] => Evaluation of damage accumulation for ductile materials
[duvernost_udaju_id] => S
[popis] => The damage accumulation is one of the issues of ductile fracture modelling. One of the potential methods for assessing the damage evolution may be the tracking of the change in Young’s modulus. This contribution presents three measuring approaches to following the decrease of Young’s modulus, which is related to the damage progression. Simple loading-unloading technique was compared to the two approaches using the ultrasound. In one approach utilizing the ultrasound, the test was stopped for measuring the wave velocity, while no interruption was present during the other approach. The technique employing the ultrasound without stopping yielded rather scattered results with no trend observable. Nevertheless, the loading-unloading method resulted in greater degradation of Young’s modulus than in the techniques which applied the ultrasound.
[popis_orig] => The damage accumulation is one of the issues of ductile fracture modelling. One of the potential methods for assessing the damage evolution may be the tracking of the change in Young’s modulus. This contribution presents three measuring approaches to following the decrease of Young’s modulus, which is related to the damage progression. Simple loading-unloading technique was compared to the two approaches using the ultrasound. In one approach utilizing the ultrasound, the test was stopped for measuring the wave velocity, while no interruption was present during the other approach. The technique employing the ultrasound without stopping yielded rather scattered results with no trend observable. Nevertheless, the loading-unloading method resulted in greater degradation of Young’s modulus than in the techniques which applied the ultrasound.
[klicova_slova] => Semi-cyclic; failure; plasticity; material weakening; non-linear damage accumulation
[klicova_slova_orig] => Semi-cyclic; failure; plasticity; material weakening; non-linear damage accumulation
[url] =>
[oecd_obor_id] => 20302
[odpovedny_utvar_id] => 157
[odpovedny_utvar_nazev] => Institute of Solid Mechanics, Mechatronics and Biomechanics
[odpovedny_utvar_zkratka] => ISMMB
[nadrazena_soucast_id] => 4
[nadrazena_soucast_zkratka] => FME
[nadrazena_soucast_nazev] => Faculty of Mechanical Engineering
[originalni_jazyk] => en
[schvalil_id] => 1770
[schvaleno] => 2023-08-23
[vykazovat_riv] => 1
[vykazovat_riv_zmeny] => 1
[slozka_id] =>
[posledni_diagnostika] =>
[vycet_osob] => ŠEBEK, F.; KUBÍK, P.; PETRUŠKA, J.
[pocet_tvurcu] => 3
[tvurci_ids] =>
[poznamka] =>
[typ_nazev] =>
[kod_doi] => 10.21495/512353
[kod_dspace] =>
[rok_vytvoreni] =>
[pocet_zaznamu] =>
[zverejneno] => 1
[prvni_autor] =>
[korespondencni_autor] =>
[posledni_autor] =>
[znamka] =>
[kategorie_nazev] => Publication results
[druh_nazev] => Paper in proceedings outside WoS and Scopus
[druh_popis] => Paper in proceedings outside WoS and Scopus
[stav] => Approved
[vysledek_kategorie_id] => PV
[vysledek_system_kategorie_id] => PU
[vysledek_stav_id] => 3
[vlozil] => Informační systém Automat
[upravil] => Informační systém Automat
[ins_uid] => 999999
[upd_uid] => 999999
[ins_ts] => 2025-09-22
[upd_ts] => 2025-09-22
[status] => 9
[identifikator] => ISBN 978-80-86246-48-2
[identifikator_popis] => ISBN - Engineering Mechanics 2022
[riv_dodavka_id] => 3314
[riv_dodavka_oznaceni] => RIV24-GA0-26210___
[riv_dodavka_rok] => 2024
[diagnostika_pocet] => 0
[diagnostika_pocet_chyba] => 0
[diagnostika_pocet_upozorneni] => 0
[diagnostika_pocet_informace] => 0
[citace_text] => ŠEBEK, F.; KUBÍK, P.; PETRUŠKA, J. Evaluation of damage accumulation for ductile materials. Engineering Mechanics 2022. 2022. p. 353-356. ISBN: 978-80-86246-48-2.
[citace_html] => ŠEBEK, F.; KUBÍK, P.; PETRUŠKA, J. Evaluation of damage accumulation for ductile materials. Engineering Mechanics 2022. 2022. p. 353-356. ISBN: 978-80-86246-48-2.
[citace_rtf] =>
[citace_bibtex] => @inproceedings{BUT184404,
author="František {Šebek} and Petr {Kubík} and Jindřich {Petruška}",
title="Evaluation of damage accumulation for ductile materials",
booktitle="Engineering Mechanics 2022",
year="2022",
pages="353--356",
doi="10.21495/512353",
isbn="978-80-86246-48-2"
}
[vykazano] =>
[vykazano_aspon_jednou] =>
[identifikacni_kod] =>
[neautorsky_vysledek] => 0
[if] =>
[if_q] =>
[if_m17_q] =>
[if_m25_q] =>
[if_d] =>
[if_m17_d] =>
[if_m25_d] =>
[if_percentil] =>
[if_m17_percentil] =>
[if_m25_percentil] =>
[ais] =>
[ais_m17_q] =>
[ais_m25_q] =>
[ais_m17_d] =>
[ais_m25_d] =>
[ais_m17_percentil] =>
[ais_m25_percentil] =>
[jci] =>
[jci_q] =>
[jci_percentil] =>
[ef] =>
[scopus_sjr] =>
[scopus_sjr_q] =>
[scopus_sjr_d] =>
[nature_index_group] =>
[incites_times_cited] =>
[incites_open_access] =>
[incites_jnci] =>
[incites_is_int_collab] =>
[incites_is_industry_collab] =>
[incites_esi_hot_paper] =>
[incites_esi_highly_cited_paper] =>
[incites_avg_cnci] =>
[incites_avg_percentile] =>
[scival_citations_count] =>
[scival_fwci] =>
[core_rank] => NA
[oecd_tree_oblast_id] => 20000
[oecd_tree_oblast_nazev] => 2. Engineering and Technology
[oecd_tree_obor_id] => 20300
[oecd_tree_obor_nazev] => 2.3 Mechanical engineering
[oecd_tree_podobor_id] => 20302
[oecd_tree_podobor_nazev] => Applied mechanics
[poznamka_metriky] =>
[nazev_en] => Evaluation of damage accumulation for ductile materials
[popis_en] => The damage accumulation is one of the issues of ductile fracture modelling. One of the potential methods for assessing the damage evolution may be the tracking of the change in Young’s modulus. This contribution presents three measuring approaches to following the decrease of Young’s modulus, which is related to the damage progression. Simple loading-unloading technique was compared to the two approaches using the ultrasound. In one approach utilizing the ultrasound, the test was stopped for measuring the wave velocity, while no interruption was present during the other approach. The technique employing the ultrasound without stopping yielded rather scattered results with no trend observable. Nevertheless, the loading-unloading method resulted in greater degradation of Young’s modulus than in the techniques which applied the ultrasound.
[klicova_slova_en] => Semi-cyclic; failure; plasticity; material weakening; non-linear damage accumulation
[vysledek_datum] => 2022-05-09T00:00:00+02:00
)
[11] => Array
(
[vysledek_id] => 184405
[vysledek_druh_id] => CONPAX
[ex_vysledek_id] => 148830
[vysledek_rok] => 2023
[nazev] => Numerical simulations of plane strain tension for nickel-based alloy 718
[nazev_orig] => Numerical simulations of plane strain tension for nickel-based alloy 718
[duvernost_udaju_id] => S
[popis] => The analysis of possible approaches to the numerical simulation of tensile flat specimen made from 718 superalloy is presented. Three plasticity models were employed, with various numbers of material parameters and, therefore, complexity. The influence of simplifying the three-dimensional geometry into the plane was researched in the view of force response, deformation and stress state in the crack initiation location, which was in the centre of the specimen.
[popis_orig] => The analysis of possible approaches to the numerical simulation of tensile flat specimen made from 718 superalloy is presented. Three plasticity models were employed, with various numbers of material parameters and, therefore, complexity. The influence of simplifying the three-dimensional geometry into the plane was researched in the view of force response, deformation and stress state in the crack initiation location, which was in the centre of the specimen.
[klicova_slova] => Ductile; flow; Haynes; Inconel; isotropic
[klicova_slova_orig] => Ductile; flow; Haynes; Inconel; isotropic
[url] =>
[oecd_obor_id] => 20302
[odpovedny_utvar_id] => 157
[odpovedny_utvar_nazev] => Institute of Solid Mechanics, Mechatronics and Biomechanics
[odpovedny_utvar_zkratka] => ISMMB
[nadrazena_soucast_id] => 4
[nadrazena_soucast_zkratka] => FME
[nadrazena_soucast_nazev] => Faculty of Mechanical Engineering
[originalni_jazyk] => en
[schvalil_id] => 1770
[schvaleno] => 2023-08-23
[vykazovat_riv] => 1
[vykazovat_riv_zmeny] => 1
[slozka_id] =>
[posledni_diagnostika] =>
[vycet_osob] => KUBÍK, P.; VOBEJDA, R.; PETRUŠKA, J.; ŠEBEK, F.
[pocet_tvurcu] => 4
[tvurci_ids] =>
[poznamka] =>
[typ_nazev] =>
[kod_doi] => 10.21495/em2023-143
[kod_dspace] =>
[rok_vytvoreni] =>
[pocet_zaznamu] =>
[zverejneno] => 1
[prvni_autor] =>
[korespondencni_autor] =>
[posledni_autor] =>
[znamka] =>
[kategorie_nazev] => Publication results
[druh_nazev] => Paper in proceedings outside WoS and Scopus
[druh_popis] => Paper in proceedings outside WoS and Scopus
[stav] => Approved
[vysledek_kategorie_id] => PV
[vysledek_system_kategorie_id] => PU
[vysledek_stav_id] => 3
[vlozil] => Informační systém Automat
[upravil] => Informační systém Automat
[ins_uid] => 999999
[upd_uid] => 999999
[ins_ts] => 2025-09-22
[upd_ts] => 2025-09-22
[status] => 9
[identifikator] => ISBN 978-80-87012-84-0
[identifikator_popis] => ISBN - Engineering Mechanics 2023
[riv_dodavka_id] => 3314
[riv_dodavka_oznaceni] => RIV24-GA0-26210___
[riv_dodavka_rok] => 2024
[diagnostika_pocet] => 0
[diagnostika_pocet_chyba] => 0
[diagnostika_pocet_upozorneni] => 0
[diagnostika_pocet_informace] => 0
[citace_text] => KUBÍK, P.; VOBEJDA, R.; PETRUŠKA, J.; ŠEBEK, F. Numerical simulations of plane strain tension for nickel-based alloy 718. Engineering Mechanics 2023. 2023. p. 143-146. ISBN: 978-80-87012-84-0.
[citace_html] => KUBÍK, P.; VOBEJDA, R.; PETRUŠKA, J.; ŠEBEK, F. Numerical simulations of plane strain tension for nickel-based alloy 718. Engineering Mechanics 2023. 2023. p. 143-146. ISBN: 978-80-87012-84-0.
[citace_rtf] =>
[citace_bibtex] => @inproceedings{BUT184405,
author="Petr {Kubík} and Radek {Vobejda} and Jindřich {Petruška} and František {Šebek}",
title="Numerical simulations of plane strain tension for nickel-based alloy 718",
booktitle="Engineering Mechanics 2023",
year="2023",
pages="143--146",
doi="10.21495/em2023-143",
isbn="978-80-87012-84-0"
}
[vykazano] =>
[vykazano_aspon_jednou] =>
[identifikacni_kod] =>
[neautorsky_vysledek] => 0
[if] =>
[if_q] =>
[if_m17_q] =>
[if_m25_q] =>
[if_d] =>
[if_m17_d] =>
[if_m25_d] =>
[if_percentil] =>
[if_m17_percentil] =>
[if_m25_percentil] =>
[ais] =>
[ais_m17_q] =>
[ais_m25_q] =>
[ais_m17_d] =>
[ais_m25_d] =>
[ais_m17_percentil] =>
[ais_m25_percentil] =>
[jci] =>
[jci_q] =>
[jci_percentil] =>
[ef] =>
[scopus_sjr] =>
[scopus_sjr_q] =>
[scopus_sjr_d] =>
[nature_index_group] =>
[incites_times_cited] =>
[incites_open_access] =>
[incites_jnci] =>
[incites_is_int_collab] =>
[incites_is_industry_collab] =>
[incites_esi_hot_paper] =>
[incites_esi_highly_cited_paper] =>
[incites_avg_cnci] =>
[incites_avg_percentile] =>
[scival_citations_count] =>
[scival_fwci] =>
[core_rank] => NA
[oecd_tree_oblast_id] => 20000
[oecd_tree_oblast_nazev] => 2. Engineering and Technology
[oecd_tree_obor_id] => 20300
[oecd_tree_obor_nazev] => 2.3 Mechanical engineering
[oecd_tree_podobor_id] => 20302
[oecd_tree_podobor_nazev] => Applied mechanics
[poznamka_metriky] =>
[nazev_en] => Numerical simulations of plane strain tension for nickel-based alloy 718
[popis_en] => The analysis of possible approaches to the numerical simulation of tensile flat specimen made from 718 superalloy is presented. Three plasticity models were employed, with various numbers of material parameters and, therefore, complexity. The influence of simplifying the three-dimensional geometry into the plane was researched in the view of force response, deformation and stress state in the crack initiation location, which was in the centre of the specimen.
[klicova_slova_en] => Ductile; flow; Haynes; Inconel; isotropic
[vysledek_datum] => 2023-05-09T00:00:00+02:00
)
[12] => Array
(
[vysledek_id] => 184406
[vysledek_druh_id] => CONPAX
[ex_vysledek_id] => 148831
[vysledek_rok] => 2023
[nazev] => Comparison of associated and non-associated plasticity models for aluminium alloys
[nazev_orig] => Comparison of associated and non-associated plasticity models for aluminium alloys
[duvernost_udaju_id] => S
[popis] => A great deal of products are made from steel sheets, which often exhibit anisotropic behaviour. It is necessary to capture this phenomenon in the design stage to obtain reliable predictions and effective manufacturing. Two different models are compared for two aluminium alloys, 6022-T4 and 2090-T3. The role of associativity and non-associativity is studied with respect to the predictability of yield stresses and r-values.
[popis_orig] => A great deal of products are made from steel sheets, which often exhibit anisotropic behaviour. It is necessary to capture this phenomenon in the design stage to obtain reliable predictions and effective manufacturing. Two different models are compared for two aluminium alloys, 6022-T4 and 2090-T3. The role of associativity and non-associativity is studied with respect to the predictability of yield stresses and r-values.
[klicova_slova] => Flow; hardening; Lankford; orthotropy; plate
[klicova_slova_orig] => Flow; hardening; Lankford; orthotropy; plate
[url] =>
[oecd_obor_id] => 20302
[odpovedny_utvar_id] => 157
[odpovedny_utvar_nazev] => Institute of Solid Mechanics, Mechatronics and Biomechanics
[odpovedny_utvar_zkratka] => ISMMB
[nadrazena_soucast_id] => 4
[nadrazena_soucast_zkratka] => FME
[nadrazena_soucast_nazev] => Faculty of Mechanical Engineering
[originalni_jazyk] => en
[schvalil_id] => 1770
[schvaleno] => 2023-08-23
[vykazovat_riv] => 1
[vykazovat_riv_zmeny] => 1
[slozka_id] =>
[posledni_diagnostika] =>
[vycet_osob] => VOBEJDA, R.; ŠEBEK, F.
[pocet_tvurcu] => 2
[tvurci_ids] =>
[poznamka] =>
[typ_nazev] =>
[kod_doi] => 10.21495/em2023-263
[kod_dspace] =>
[rok_vytvoreni] =>
[pocet_zaznamu] =>
[zverejneno] => 1
[prvni_autor] =>
[korespondencni_autor] =>
[posledni_autor] =>
[znamka] =>
[kategorie_nazev] => Publication results
[druh_nazev] => Paper in proceedings outside WoS and Scopus
[druh_popis] => Paper in proceedings outside WoS and Scopus
[stav] => Approved
[vysledek_kategorie_id] => PV
[vysledek_system_kategorie_id] => PU
[vysledek_stav_id] => 3
[vlozil] => Informační systém Automat
[upravil] => Informační systém Automat
[ins_uid] => 999999
[upd_uid] => 999999
[ins_ts] => 2025-09-22
[upd_ts] => 2025-09-22
[status] => 9
[identifikator] => ISBN 978-80-87012-84-0
[identifikator_popis] => ISBN - Engineering Mechanics 2023
[riv_dodavka_id] => 3314
[riv_dodavka_oznaceni] => RIV24-GA0-26210___
[riv_dodavka_rok] => 2024
[diagnostika_pocet] => 0
[diagnostika_pocet_chyba] => 0
[diagnostika_pocet_upozorneni] => 0
[diagnostika_pocet_informace] => 0
[citace_text] => VOBEJDA, R.; ŠEBEK, F. Comparison of associated and non-associated plasticity models for aluminium alloys. Engineering Mechanics 2023. 2023. p. 263-266. ISBN: 978-80-87012-84-0.
[citace_html] => VOBEJDA, R.; ŠEBEK, F. Comparison of associated and non-associated plasticity models for aluminium alloys. Engineering Mechanics 2023. 2023. p. 263-266. ISBN: 978-80-87012-84-0.
[citace_rtf] =>
[citace_bibtex] => @inproceedings{BUT184406,
author="Radek {Vobejda} and František {Šebek}",
title="Comparison of associated and non-associated plasticity models for aluminium alloys",
booktitle="Engineering Mechanics 2023",
year="2023",
pages="263--266",
doi="10.21495/em2023-263",
isbn="978-80-87012-84-0"
}
[vykazano] =>
[vykazano_aspon_jednou] =>
[identifikacni_kod] =>
[neautorsky_vysledek] => 0
[if] =>
[if_q] =>
[if_m17_q] =>
[if_m25_q] =>
[if_d] =>
[if_m17_d] =>
[if_m25_d] =>
[if_percentil] =>
[if_m17_percentil] =>
[if_m25_percentil] =>
[ais] =>
[ais_m17_q] =>
[ais_m25_q] =>
[ais_m17_d] =>
[ais_m25_d] =>
[ais_m17_percentil] =>
[ais_m25_percentil] =>
[jci] =>
[jci_q] =>
[jci_percentil] =>
[ef] =>
[scopus_sjr] =>
[scopus_sjr_q] =>
[scopus_sjr_d] =>
[nature_index_group] =>
[incites_times_cited] =>
[incites_open_access] =>
[incites_jnci] =>
[incites_is_int_collab] =>
[incites_is_industry_collab] =>
[incites_esi_hot_paper] =>
[incites_esi_highly_cited_paper] =>
[incites_avg_cnci] =>
[incites_avg_percentile] =>
[scival_citations_count] =>
[scival_fwci] =>
[core_rank] => NA
[oecd_tree_oblast_id] => 20000
[oecd_tree_oblast_nazev] => 2. Engineering and Technology
[oecd_tree_obor_id] => 20300
[oecd_tree_obor_nazev] => 2.3 Mechanical engineering
[oecd_tree_podobor_id] => 20302
[oecd_tree_podobor_nazev] => Applied mechanics
[poznamka_metriky] =>
[nazev_en] => Comparison of associated and non-associated plasticity models for aluminium alloys
[popis_en] => A great deal of products are made from steel sheets, which often exhibit anisotropic behaviour. It is necessary to capture this phenomenon in the design stage to obtain reliable predictions and effective manufacturing. Two different models are compared for two aluminium alloys, 6022-T4 and 2090-T3. The role of associativity and non-associativity is studied with respect to the predictability of yield stresses and r-values.
[klicova_slova_en] => Flow; hardening; Lankford; orthotropy; plate
[vysledek_datum] => 2023-05-09T00:00:00+02:00
)
[13] => Array
(
[vysledek_id] => 184505
[vysledek_druh_id] => ARTWOS
[ex_vysledek_id] => 148907
[vysledek_rok] => 2023
[nazev] => Effect of aortic bifurcation geometry on pressure and peak wall stress in abdominal aorta: Fluid-structure interaction study
[nazev_orig] => Effect of aortic bifurcation geometry on pressure and peak wall stress in abdominal aorta: Fluid-structure interaction study
[duvernost_udaju_id] => S
[popis] => Background and Objective: Geometry of aorto-iliac bifurcation may affect pressure and wall stress in aorta and thus potentially serve as a predictor of abdominal aortic aneurysm (AAA), similarly to hypertension.Methods: Effect of aorto-iliac bifurcation geometry was investigated via parametric analysis based on two-way weakly coupled fluid-structure interaction simulations. The arterial wall was modelled as isotropic hyperelastic monolayer, and non-Newtonian behaviour was introduced for the fluid. Realistic boundary conditions of the pulsatile blood flow were used on the basis of experiments in literature and their time shift was tailored to the pulse wave velocity in the model to obtain physiological wave shapes. Eighteen idealized and one patient-specific geometries of human aortic tree with common iliac and renal arteries were considered with different angles between abdominal aorta (AA) and both iliac arteries and different area ratios (AR) of iliac and aortic luminal cross sections.Results: Peak wall stress (PWS) and systolic blood pressure (SBP) were insensitive to the aorto-iliac angles but sensitive to the AR: when AR decreased by 50%, the PWS and SBP increased by up to 18.4% and 18.8%, respectively.Conclusions: Lower AR (as a result of the iliac stenosis or aging), rather than the aorto-iliac angles increases the BP in the AA and may be thus a risk factor for the AAA development.
[popis_orig] => Background and Objective: Geometry of aorto-iliac bifurcation may affect pressure and wall stress in aorta and thus potentially serve as a predictor of abdominal aortic aneurysm (AAA), similarly to hypertension.Methods: Effect of aorto-iliac bifurcation geometry was investigated via parametric analysis based on two-way weakly coupled fluid-structure interaction simulations. The arterial wall was modelled as isotropic hyperelastic monolayer, and non-Newtonian behaviour was introduced for the fluid. Realistic boundary conditions of the pulsatile blood flow were used on the basis of experiments in literature and their time shift was tailored to the pulse wave velocity in the model to obtain physiological wave shapes. Eighteen idealized and one patient-specific geometries of human aortic tree with common iliac and renal arteries were considered with different angles between abdominal aorta (AA) and both iliac arteries and different area ratios (AR) of iliac and aortic luminal cross sections.Results: Peak wall stress (PWS) and systolic blood pressure (SBP) were insensitive to the aorto-iliac angles but sensitive to the AR: when AR decreased by 50%, the PWS and SBP increased by up to 18.4% and 18.8%, respectively.Conclusions: Lower AR (as a result of the iliac stenosis or aging), rather than the aorto-iliac angles increases the BP in the AA and may be thus a risk factor for the AAA development.
[klicova_slova] => Aortic bifurcation; Fluid-structure interaction; Abdominal aortic aneurysm; Atherosclerosis; Aorto-iliac ratio; Aorto-iliac angles
[klicova_slova_orig] => Aortic bifurcation; Fluid-structure interaction; Abdominal aortic aneurysm; Atherosclerosis; Aorto-iliac ratio; Aorto-iliac angles
[url] => https://doi.org/10.1016/j.medengphy.2023.104014
[oecd_obor_id] => 20602
[odpovedny_utvar_id] => 157
[odpovedny_utvar_nazev] => Institute of Solid Mechanics, Mechatronics and Biomechanics
[odpovedny_utvar_zkratka] => ISMMB
[nadrazena_soucast_id] => 4
[nadrazena_soucast_zkratka] => FME
[nadrazena_soucast_nazev] => Faculty of Mechanical Engineering
[originalni_jazyk] => en
[schvalil_id] => 1594
[schvaleno] => 2023-09-01
[vykazovat_riv] => 1
[vykazovat_riv_zmeny] => 1
[slozka_id] =>
[posledni_diagnostika] =>
[vycet_osob] => JAGOŠ, J.; SCHWARZ, D.; POLZER, S.; BURŠA, J.
[pocet_tvurcu] => 4
[tvurci_ids] =>
[poznamka] =>
[typ_nazev] =>
[kod_doi] => 10.1016/j.medengphy.2023.104014
[kod_dspace] =>
[rok_vytvoreni] =>
[pocet_zaznamu] =>
[zverejneno] => 1
[prvni_autor] =>
[korespondencni_autor] =>
[posledni_autor] =>
[znamka] =>
[kategorie_nazev] => Publication results
[druh_nazev] => WoS Article
[druh_popis] => Peer-reviewed article included in Web of Science database as as an “Article”, “Review” or “Letter”
[stav] => Approved
[vysledek_kategorie_id] => PV
[vysledek_system_kategorie_id] => PU
[vysledek_stav_id] => 3
[vlozil] => Informační systém Automat
[upravil] => Informační systém Automat
[ins_uid] => 999999
[upd_uid] => 999999
[ins_ts] => 2025-09-22
[upd_ts] => 2025-09-22
[status] => 9
[identifikator] => ISSN 1350-4533
[identifikator_popis] => ISSN - MEDICAL ENGINEERING & PHYSICS (GB)
[riv_dodavka_id] => 3367
[riv_dodavka_oznaceni] => RIV24-MSM-26210___
[riv_dodavka_rok] => 2024
[diagnostika_pocet] => 2
[diagnostika_pocet_chyba] => 1
[diagnostika_pocet_upozorneni] => 0
[diagnostika_pocet_informace] => 1
[citace_text] => JAGOŠ, J.; SCHWARZ, D.; POLZER, S.; BURŠA, J. Effect of aortic bifurcation geometry on pressure and peak wall stress in abdominal aorta: Fluid-structure interaction study. MEDICAL ENGINEERING & PHYSICS, 2023, vol. 118, no. 08, p. 104014-1 (104014-8 p.)ISSN: 1873-4030.
[citace_html] => JAGOŠ, J.; SCHWARZ, D.; POLZER, S.; BURŠA, J. Effect of aortic bifurcation geometry on pressure and peak wall stress in abdominal aorta: Fluid-structure interaction study. MEDICAL ENGINEERING & PHYSICS, 2023, vol. 118, no. 08, p. 104014-1 (104014-8 p.)ISSN: 1873-4030.
[citace_rtf] =>
[citace_bibtex] =>
[vykazano] =>
[vykazano_aspon_jednou] =>
[identifikacni_kod] =>
[neautorsky_vysledek] => 0
[if] => 1.7
[if_q] => 3
[if_m17_q] => 4
[if_m25_q] => 3
[if_d] =>
[if_m17_d] => 8
[if_m25_d] => 8
[if_percentil] => 26.6
[if_m17_percentil] => 24.825
[if_m25_percentil] => 27.457
[ais] => 0.459
[ais_m17_q] => 4
[ais_m25_q] => 3
[ais_m17_d] => 8
[ais_m25_d] => 8
[ais_m17_percentil] => 22.5
[ais_m25_percentil] => 25.602
[jci] => 0.42
[jci_q] => 3
[jci_percentil] => 29.918
[ef] =>
[scopus_sjr] => 0.458
[scopus_sjr_q] => 3
[scopus_sjr_d] =>
[nature_index_group] =>
[incites_times_cited] => 0
[incites_open_access] => 0
[incites_jnci] => 0
[incites_is_int_collab] => 0
[incites_is_industry_collab] => 0
[incites_esi_hot_paper] => 0
[incites_esi_highly_cited_paper] => 0
[incites_avg_cnci] => 0
[incites_avg_percentile] => 0
[scival_citations_count] =>
[scival_fwci] => 1.884598
[core_rank] => NA
[oecd_tree_oblast_id] => 20000
[oecd_tree_oblast_nazev] => 2. Engineering and Technology
[oecd_tree_obor_id] => 20600
[oecd_tree_obor_nazev] => 2.6 Medical engineering
[oecd_tree_podobor_id] => 20602
[oecd_tree_podobor_nazev] => Medical laboratory technology (including laboratory samples analysis; diagnostic technologies) (Biomaterials to be 2.9 [physical characteristics of living material as related to medical implants, devices, sensors])
[poznamka_metriky] =>
[nazev_en] => Effect of aortic bifurcation geometry on pressure and peak wall stress in abdominal aorta: Fluid-structure interaction study
[popis_en] => Background and Objective: Geometry of aorto-iliac bifurcation may affect pressure and wall stress in aorta and thus potentially serve as a predictor of abdominal aortic aneurysm (AAA), similarly to hypertension.Methods: Effect of aorto-iliac bifurcation geometry was investigated via parametric analysis based on two-way weakly coupled fluid-structure interaction simulations. The arterial wall was modelled as isotropic hyperelastic monolayer, and non-Newtonian behaviour was introduced for the fluid. Realistic boundary conditions of the pulsatile blood flow were used on the basis of experiments in literature and their time shift was tailored to the pulse wave velocity in the model to obtain physiological wave shapes. Eighteen idealized and one patient-specific geometries of human aortic tree with common iliac and renal arteries were considered with different angles between abdominal aorta (AA) and both iliac arteries and different area ratios (AR) of iliac and aortic luminal cross sections.Results: Peak wall stress (PWS) and systolic blood pressure (SBP) were insensitive to the aorto-iliac angles but sensitive to the AR: when AR decreased by 50%, the PWS and SBP increased by up to 18.4% and 18.8%, respectively.Conclusions: Lower AR (as a result of the iliac stenosis or aging), rather than the aorto-iliac angles increases the BP in the AA and may be thus a risk factor for the AAA development.
[klicova_slova_en] => Aortic bifurcation; Fluid-structure interaction; Abdominal aortic aneurysm; Atherosclerosis; Aorto-iliac ratio; Aorto-iliac angles
[vysledek_datum] => 2023-06-26T00:00:00+02:00
)
[14] => Array
(
[vysledek_id] => 184529
[vysledek_druh_id] => ARTWOS
[ex_vysledek_id] => 148919
[vysledek_rok] => 2023
[nazev] => Computational prediction of chevron cracking during multi-pass cold forward extrusion
[nazev_orig] => Computational prediction of chevron cracking during multi-pass cold forward extrusion
[duvernost_udaju_id] => S
[popis] => The cold forward extrusion is a manufacturing process that is widespread in automated production due to its economic benefits. The cross-section is reduced during this process, which is accompanied by large plastic deformations. It may lead to the chevron cracking, which has to be predicted for flawless production and maintaining economic advantage. Therefore, the multi-pass cold forward extrusion of cylinder made from AISI 1045 was numerically simulated. The central cracks were predicted by the recently proposed uncoupled ductile fracture criteria. These were calibrated using various experiments, including the small punch test with additional fractographic observation. The material model was implemented into Abaqus using the user subroutine so that defects were successfully predicted using an element deletion technique.
[popis_orig] => The cold forward extrusion is a manufacturing process that is widespread in automated production due to its economic benefits. The cross-section is reduced during this process, which is accompanied by large plastic deformations. It may lead to the chevron cracking, which has to be predicted for flawless production and maintaining economic advantage. Therefore, the multi-pass cold forward extrusion of cylinder made from AISI 1045 was numerically simulated. The central cracks were predicted by the recently proposed uncoupled ductile fracture criteria. These were calibrated using various experiments, including the small punch test with additional fractographic observation. The material model was implemented into Abaqus using the user subroutine so that defects were successfully predicted using an element deletion technique.
[klicova_slova] => Carbon steel; central bursting; cut-off; v-shaped cracks; x-ray
[klicova_slova_orig] => Carbon steel; central bursting; cut-off; v-shaped cracks; x-ray
[url] => https://www.sciencedirect.com/science/article/pii/S1526612523007089
[oecd_obor_id] => 21100
[odpovedny_utvar_id] => 157
[odpovedny_utvar_nazev] => Institute of Solid Mechanics, Mechatronics and Biomechanics
[odpovedny_utvar_zkratka] => ISMMB
[nadrazena_soucast_id] => 4
[nadrazena_soucast_zkratka] => FME
[nadrazena_soucast_nazev] => Faculty of Mechanical Engineering
[originalni_jazyk] => en
[schvalil_id] => 28865
[schvaleno] => 2023-10-02
[vykazovat_riv] => 1
[vykazovat_riv_zmeny] => 1
[slozka_id] =>
[posledni_diagnostika] =>
[vycet_osob] => KUBÍK, P.; PETRUŠKA, J.; JUDAS, J.; ŠEBEK, F.
[pocet_tvurcu] => 4
[tvurci_ids] =>
[poznamka] =>
[typ_nazev] =>
[kod_doi] => 10.1016/j.jmapro.2023.07.025
[kod_dspace] =>
[rok_vytvoreni] =>
[pocet_zaznamu] =>
[zverejneno] => 1
[prvni_autor] =>
[korespondencni_autor] =>
[posledni_autor] =>
[znamka] =>
[kategorie_nazev] => Publication results
[druh_nazev] => WoS Article
[druh_popis] => Peer-reviewed article included in Web of Science database as as an “Article”, “Review” or “Letter”
[stav] => Approved
[vysledek_kategorie_id] => PV
[vysledek_system_kategorie_id] => PU
[vysledek_stav_id] => 3
[vlozil] => Informační systém Automat
[upravil] => Informační systém Automat
[ins_uid] => 999999
[upd_uid] => 999999
[ins_ts] => 2025-09-22
[upd_ts] => 2025-09-22
[status] => 9
[identifikator] => ISSN 1526-6125
[identifikator_popis] => ISSN - Journal of Manufacturing Processes (US)
[riv_dodavka_id] => 3314
[riv_dodavka_oznaceni] => RIV24-GA0-26210___
[riv_dodavka_rok] => 2024
[diagnostika_pocet] => 1
[diagnostika_pocet_chyba] => 0
[diagnostika_pocet_upozorneni] => 0
[diagnostika_pocet_informace] => 1
[citace_text] => KUBÍK, P.; PETRUŠKA, J.; JUDAS, J.; ŠEBEK, F. Computational prediction of chevron cracking during multi-pass cold forward extrusion. Journal of Manufacturing Processes, 2023, vol. 102, no. 2023, p. 154-168. ISSN: 1526-6125.
[citace_html] => KUBÍK, P.; PETRUŠKA, J.; JUDAS, J.; ŠEBEK, F. Computational prediction of chevron cracking during multi-pass cold forward extrusion. Journal of Manufacturing Processes, 2023, vol. 102, no. 2023, p. 154-168. ISSN: 1526-6125.
[citace_rtf] =>
[citace_bibtex] => @article{BUT184529,
author="Petr {Kubík} and Jindřich {Petruška} and Jakub {Judas} and František {Šebek}",
title="Computational prediction of chevron cracking during multi-pass cold forward extrusion",
journal="Journal of Manufacturing Processes",
year="2023",
volume="102",
number="2023",
pages="154--168",
doi="10.1016/j.jmapro.2023.07.025",
issn="1526-6125",
url="https://www.sciencedirect.com/science/article/pii/S1526612523007089"
}
[vykazano] =>
[vykazano_aspon_jednou] =>
[identifikacni_kod] =>
[neautorsky_vysledek] => 0
[if] => 6.1
[if_q] => 1
[if_m17_q] => 1
[if_m25_q] => 1
[if_d] =>
[if_m17_d] => 2
[if_m25_d] => 1
[if_percentil] => 83.1
[if_m17_percentil] => 87.5
[if_m25_percentil] => 90.28
[ais] => 0.971
[ais_m17_q] => 1
[ais_m25_q] => 1
[ais_m17_d] => 2
[ais_m25_d] => 2
[ais_m17_percentil] => 80.978
[ais_m25_percentil] => 84.475
[jci] => 1.17
[jci_q] => 1
[jci_percentil] => 77.206
[ef] =>
[scopus_sjr] => 1.39
[scopus_sjr_q] => 1
[scopus_sjr_d] =>
[nature_index_group] =>
[incites_times_cited] => 3
[incites_open_access] => 0
[incites_jnci] => 0.3
[incites_is_int_collab] => 0
[incites_is_industry_collab] => 0
[incites_esi_hot_paper] => 0
[incites_esi_highly_cited_paper] => 0
[incites_avg_cnci] => 0.3746
[incites_avg_percentile] => 27.493
[scival_citations_count] => 2
[scival_fwci] => 0.936632
[core_rank] => NA
[oecd_tree_oblast_id] => 20000
[oecd_tree_oblast_nazev] => 2. Engineering and Technology
[oecd_tree_obor_id] => 21100
[oecd_tree_obor_nazev] => 2.11 Other engineering and technologies
[oecd_tree_podobor_id] =>
[oecd_tree_podobor_nazev] =>
[poznamka_metriky] =>
[nazev_en] => Computational prediction of chevron cracking during multi-pass cold forward extrusion
[popis_en] => The cold forward extrusion is a manufacturing process that is widespread in automated production due to its economic benefits. The cross-section is reduced during this process, which is accompanied by large plastic deformations. It may lead to the chevron cracking, which has to be predicted for flawless production and maintaining economic advantage. Therefore, the multi-pass cold forward extrusion of cylinder made from AISI 1045 was numerically simulated. The central cracks were predicted by the recently proposed uncoupled ductile fracture criteria. These were calibrated using various experiments, including the small punch test with additional fractographic observation. The material model was implemented into Abaqus using the user subroutine so that defects were successfully predicted using an element deletion technique.
[klicova_slova_en] => Carbon steel; central bursting; cut-off; v-shaped cracks; x-ray
[vysledek_datum] => 2023-09-29T00:00:00+02:00
)
)
)
Array
(
[total] => 3612
[page] => 231
[count] => 15
[n_pages] => 241
[pagelen] => 15
[odkaz] => typVysledku=&rok=&ftext=&btnSubmit=1
[base_detail] => /en/veda/publikace/detail/
[base_page] => /en/veda/publikace
[vysledek] => Array
(
[0] => Array
(
[quotations] => POKORNÝ, J.; NÁVRAT, T.; VAJDÁK, M.; OTEVŘEL, M.; KOZÁK, J.
[title] => Experimental validation of the operation of tilting-pad journal bearing lubricated by high-test peroxide under excessive vibrations and reduced flow of the lubricant
[typ] => PV
[year] => 2023
[id_vav] => 183512
)
[1] => Array
(
[quotations] => HÁJEK, P.; RADOLF, V.; HORÁČEK, J.; ŠVEC, J.
[title] => Finite Element Modal Analysis of a Silicone Vocal Fold Filled with Fluid
[typ] => PV
[year] => 2023
[id_vav] => 183553
)
[2] => Array
(
[quotations] => RADOLF, V.; ZOLOTAREV, I.; HÁJEK, P.
[title] => Engineering Mechanics 2023
[typ] => EV
[year] => 2023
[id_vav] => 183554
)
[3] => Array
(
[quotations] => KOŠKOVÁ, O.; RICHTROVA, M.; MARCIÁN, P.; JOUKAL, M.; MUSILOVA, T.; JANKU, M.; FABIAN, D.; MATYSKOVA, D.; STOURAC, P.
[title] => Use of computer-aided design and 3D printing for airway management in paediatric patients with a cleft facial defect: a pilot study
[typ] => PV
[year] => 2023
[id_vav] => 183868
)
[4] => Array
(
[quotations] => SLÁDEK, J.; SLÁDEK, V.; HRYTSYNA, M.; PROFANT, T.
[title] => Influence of flexoelectricity on interface crack problems under a dynamic load
[typ] => PV
[year] => 2023
[id_vav] => 184015
)
[5] => Array
(
[quotations] => PROFANT, T.; SLÁDEK, J.; SLÁDEK, V.; KOTOUL, M.
[title] => Assessment of amplitude factors of asymptotic expansion at crack tip in flexoelectric solid under mode I and II loadings
[typ] => PV
[year] => 2023
[id_vav] => 184016
)
[6] => Array
(
[quotations] => PROFANT, T.; SLÁDEK, J.; SLÁDEK, V.
[title] => Asymptotic solutions for interface cracks between two dissimilar flexoelectric materials
[typ] => PV
[year] => 2023
[id_vav] => 184018
)
[7] => Array
(
[quotations] => FIALA, L.; BALLO, I.; KOVÁŘ, J.; FUIS, V.
[title] => Comparison of finite element simulation of tungsten nanoindentation with Berkovich and conical indenter
[typ] => PV
[year] => 2023
[id_vav] => 184047
)
[8] => Array
(
[quotations] => ŠNAJDER, J.; KREJSA, J.
[title] => MediaPipe and Its Suitability for Sign Language Recognition
[typ] => PV
[year] => 2023
[id_vav] => 184379
)
[9] => Array
(
[quotations] => ADÁMEK, R.; BRABLC, M.; VÁVRA, P.; DOBOSSY, B.; FORMÁNEK, M.; RADIL, F.
[title] => Analytical Models for Pose Estimate Variance of Planar Fiducial Markers for Mobile Robot Localisation
[typ] => PV
[year] => 2023
[id_vav] => 184395
)
[10] => Array
(
[quotations] => ŠEBEK, F.; KUBÍK, P.; PETRUŠKA, J.
[title] => Evaluation of damage accumulation for ductile materials
[typ] => PV
[year] => 2022
[id_vav] => 184404
)
[11] => Array
(
[quotations] => KUBÍK, P.; VOBEJDA, R.; PETRUŠKA, J.; ŠEBEK, F.
[title] => Numerical simulations of plane strain tension for nickel-based alloy 718
[typ] => PV
[year] => 2023
[id_vav] => 184405
)
[12] => Array
(
[quotations] => VOBEJDA, R.; ŠEBEK, F.
[title] => Comparison of associated and non-associated plasticity models for aluminium alloys
[typ] => PV
[year] => 2023
[id_vav] => 184406
)
[13] => Array
(
[quotations] => JAGOŠ, J.; SCHWARZ, D.; POLZER, S.; BURŠA, J.
[title] => Effect of aortic bifurcation geometry on pressure and peak wall stress in abdominal aorta: Fluid-structure interaction study
[typ] => PV
[year] => 2023
[id_vav] => 184505
)
[14] => Array
(
[quotations] => KUBÍK, P.; PETRUŠKA, J.; JUDAS, J.; ŠEBEK, F.
[title] => Computational prediction of chevron cracking during multi-pass cold forward extrusion
[typ] => PV
[year] => 2023
[id_vav] => 184529
)
)
)