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title="Application of the gradient theory to interface crack between two dissimilar dielectric materials",
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year="2022",
volume="276",
number="B",
pages="108895--108895",
doi="10.1016/j.engfracmech.2022.108895",
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[upd_ts] => 2025-09-22
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[identifikator] => ISBN 978-1-6654-1040-3
[identifikator_popis] => ISBN - 2022 20th International Conference on Mechatronics - Mechatronika (ME)
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[citace_text] => PAN, S., CHEN, K.; VĚCHET, S. Design and Control of an Active Stage for Suppressing Motion Induced Vibration in Optical Inspection Systems. In 2022 20th International Conference on Mechatronics - Mechatronika (ME). Pilsen: 2022. p. 1-6. ISBN: 978-1-6654-1040-3.
[citace_html] => PAN, S., CHEN, K.; VĚCHET, S. Design and Control of an Active Stage for Suppressing Motion Induced Vibration in Optical Inspection Systems. In 2022 20th International Conference on Mechatronics - Mechatronika (ME). Pilsen: 2022. p. 1-6. ISBN: 978-1-6654-1040-3.
[citace_rtf] =>
[citace_bibtex] => @inproceedings{BUT182474,
author="PAN, S., CHEN, K. and VĚCHET, S.",
title="Design and Control of an Active Stage for Suppressing Motion Induced Vibration in Optical Inspection Systems",
booktitle="2022 20th International Conference on Mechatronics - Mechatronika (ME)",
year="2022",
pages="1--6",
address="Pilsen",
doi="10.1109/ME54704.2022.9982985",
isbn="978-1-6654-1040-3",
url="https://ieeexplore.ieee.org/document/9982985"
}
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[poznamka_metriky] =>
[nazev_en] => Design and Control of an Active Stage for Suppressing Motion Induced Vibration in Optical Inspection Systems
[popis_en] => Fast positioning and vibration suppression play important roles in virtually all tasks requiring high speed maneuvers with sufficient motion accuracy
[klicova_slova_en] => active stage; rubber bearing; flexible structure; vibration suppression; image inspection
[vysledek_datum] => 2022-12-07T00:00:00+01:00
)
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[nazev] => Sensitivity of numerically modelled crack closure to material
[nazev_orig] => Sensitivity of numerically modelled crack closure to material
[duvernost_udaju_id] => S
[popis] => Crack closure is a phenomenon which slows down fatigue crack propagation and leads to higher residual life of components and to a change in the crack front curvature. Because of the significant impact on the fatigue crack growth rate, the scientific and engineering community has been trying to describe this phenomenon very precisely. One of the most frequently described closure mechanisms is plasticity-induced crack closure (PICC) which is dominant in the Paris regime. In the presented work, a CT specimen has been modelled three-dimensionally and the PICC estimations have been done for different models of materials to investigate their sensitivity. The models were cyclically loaded by forces inducing maximal stress intensity factor of 17 MPa√m at the load ratio R=0.1. The crack was curved according to conducted experiments. Even though Newman’s equation estimates PICC almost constant, differences were observed from finite element simulations.
[popis_orig] => Crack closure is a phenomenon which slows down fatigue crack propagation and leads to higher residual life of components and to a change in the crack front curvature. Because of the significant impact on the fatigue crack growth rate, the scientific and engineering community has been trying to describe this phenomenon very precisely. One of the most frequently described closure mechanisms is plasticity-induced crack closure (PICC) which is dominant in the Paris regime. In the presented work, a CT specimen has been modelled three-dimensionally and the PICC estimations have been done for different models of materials to investigate their sensitivity. The models were cyclically loaded by forces inducing maximal stress intensity factor of 17 MPa√m at the load ratio R=0.1. The crack was curved according to conducted experiments. Even though Newman’s equation estimates PICC almost constant, differences were observed from finite element simulations.
[klicova_slova] => Finite element analysis, plasticity-induced crack closure, fatigue crack growth, high cycle fatigue
[klicova_slova_orig] => Finite element analysis, plasticity-induced crack closure, fatigue crack growth, high cycle fatigue
[url] => https://www.sciencedirect.com/science/article/pii/S2452321622006722
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[vycet_osob] => KUBÍČEK, R.; VOJTEK, T.; POKORNÝ, P.; HUTAŘ, P.
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[kod_doi] => 10.1016/j.prostr.2022.12.115
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[kategorie_nazev] => Publikační výsledky
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[stav] => Schválený
[vysledek_kategorie_id] => PV
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[citace_text] => KUBÍČEK, R.; VOJTEK, T.; POKORNÝ, P.; HUTAŘ, P. Sensitivity of numerically modelled crack closure to material. Procedia Structural Integrity, 2023, vol. 42, no. 1, p. 911-918. ISSN: 2452-3216.
[citace_html] => KUBÍČEK, R.; VOJTEK, T.; POKORNÝ, P.; HUTAŘ, P. Sensitivity of numerically modelled crack closure to material. Procedia Structural Integrity, 2023, vol. 42, no. 1, p. 911-918. ISSN: 2452-3216.
[citace_rtf] =>
[citace_bibtex] => @article{BUT182482,
author="Radek {Kubíček} and Tomáš {Vojtek} and Pavel {Pokorný} and Pavel {Hutař}",
title="Sensitivity of numerically modelled crack closure to material",
journal="Procedia Structural Integrity",
year="2023",
volume="42",
number="1",
pages="911--918",
doi="10.1016/j.prostr.2022.12.115",
url="https://www.sciencedirect.com/science/article/pii/S2452321622006722"
}
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[nazev_en] => Sensitivity of numerically modelled crack closure to material
[popis_en] => Crack closure is a phenomenon which slows down fatigue crack propagation and leads to higher residual life of components and to a change in the crack front curvature. Because of the significant impact on the fatigue crack growth rate, the scientific and engineering community has been trying to describe this phenomenon very precisely. One of the most frequently described closure mechanisms is plasticity-induced crack closure (PICC) which is dominant in the Paris regime. In the presented work, a CT specimen has been modelled three-dimensionally and the PICC estimations have been done for different models of materials to investigate their sensitivity. The models were cyclically loaded by forces inducing maximal stress intensity factor of 17 MPa√m at the load ratio R=0.1. The crack was curved according to conducted experiments. Even though Newman’s equation estimates PICC almost constant, differences were observed from finite element simulations.
[klicova_slova_en] => Finite element analysis, plasticity-induced crack closure, fatigue crack growth, high cycle fatigue
[vysledek_datum] => 2023-01-03T00:00:00+01:00
)
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(
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[nazev] => Dynamická simulace nově navržených drážek dveřního mechanismu pro ovladače var. B
[nazev_orig] => Dynamická simulace nově navržených drážek dveřního mechanismu pro ovladače var. B
[duvernost_udaju_id] => S
[popis] => V rámci optimalizace elektricky ovládané jednotky var. B byly provedeny další úpravy v geometrii drážky unašeče pro aplikaci umístění ovladače v dolní poloze. Na Obr. 1 je demonstrována funkce a smysl otáčení u verze pohonu „nahoře“ – horní ovladač a u verze „dole“ – dolní ovladač. Na základě poslední dynamické simulace bylo zjištěno, že v průběhu pracovního cyklu, resp. ve fázi zavírání a zajíždění křídla do smeků v jeho závěrečné fázi, dochází k dlouhodobému namáhání samosvorné převodovky a silovým špičkám na úplném konci této fáze.
[popis_orig] => V rámci optimalizace elektricky ovládané jednotky var. B byly provedeny další úpravy v geometrii drážky unašeče pro aplikaci umístění ovladače v dolní poloze. Na Obr. 1 je demonstrována funkce a smysl otáčení u verze pohonu „nahoře“ – horní ovladač a u verze „dole“ – dolní ovladač. Na základě poslední dynamické simulace bylo zjištěno, že v průběhu pracovního cyklu, resp. ve fázi zavírání a zajíždění křídla do smeků v jeho závěrečné fázi, dochází k dlouhodobému namáhání samosvorné převodovky a silovým špičkám na úplném konci této fáze.
[klicova_slova] => unašeč, pohon, dynamická simulace, převodovka
[klicova_slova_orig] => unašeč, pohon, dynamická simulace, převodovka
[url] =>
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[vycet_osob] => VLAŠIC, F.; MOHAMMAD, H.
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[citace_text] => VLAŠIC, F.; MOHAMMAD, H. Dynamická simulace nově navržených drážek dveřního mechanismu pro ovladače var. B. Brno: 2022. s. 1-9.
[citace_html] => VLAŠIC, F.; MOHAMMAD, H. Dynamická simulace nově navržených drážek dveřního mechanismu pro ovladače var. B. Brno: 2022. s. 1-9.
[citace_rtf] =>
[citace_bibtex] => @misc{BUT182592,
author="František {Vlašic} and Housam {Mohammad}",
title="Dynamická simulace nově navržených drážek dveřního mechanismu pro ovladače var. B",
year="2022",
pages="1--9",
address="Brno"
}
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[poznamka_metriky] =>
[nazev_en] => Dynamic simulation of newly designed door mechanism grooves for var. actuators B
[popis_en] => As part of the optimization of the electrically controlled unit var. B, additional adjustments were made to the geometry of the carrier groove to accommodate the driver's down position application. In Fig. 1, the function and sense of rotation is demonstrated for the "up" version of the drive - the upper control and for the "down" version - the lower control. Based on the last dynamic simulation, it was found that during the work cycle, or in the phase of closing and driving the wing into its final phase, there is long-term stress on the self-locking gearbox and power peaks at the very end of this phase.
[klicova_slova_en] => driver, drive, dynamic simulation, gearbox
[vysledek_datum] => 2022-08-01T00:00:00+02:00
)
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(
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[nazev] => Vertebral Slip Morphology in Dysplastic Spondylolisthesis as a Criterion for the Choice of the L5/S1 Support (ALIF, PLIF, Fibular Graft) in Surgical Treatment
[nazev_orig] => Vertebral Slip Morphology in Dysplastic Spondylolisthesis as a Criterion for the Choice of the L5/S1 Support (ALIF, PLIF, Fibular Graft) in Surgical Treatment
[duvernost_udaju_id] => S
[popis] => Dysplastic spondylolisthesis is a severe pathological condition, based on dysplastic changes in the lumbosacral part of the spine, that causes the asymmetry of the lumbosacral junction. The appropriate therapeutic algorithm remains controversial. As the gold standard, the surgical reposition of the slipped vertebra and 360 degrees fusion of the affected spinal segment is preferred. Thirty-two patients were operated on between the years 2005 and 2018. Different techniques of 360 degrees fusion, based on the severity of the displacement of the affected vertebral segment, were used. Herein, the advantages and disadvantages of different techniques of interbody fusion are discussed. The slippage and retention after reduction in the vertebrae are evaluated prior to the operation, postoperatively, one year after the surgery, and during follow-up, which was 7 years on average (minimum 2 years for a follow-up). Complications associated with the surgery are evaluated, in addition to the operation time, blood loss, spinopelvic parameters, and patient satisfaction with the surgery. All surgical techniques improved the slippage compared to preoperative conditions. The retention of the reposition was not changed significantly in postoperative controls. The incidence of neurological complications reached 12.5%. Surgical treatment is the only treatment option that successfully addressed the pathological principle of dysplastic spondylolisthesis. All of the surgical methods used led to restoring the symmetry of the lumbar spine, and to the improvement in both radiological parameters and the alleviation of subjective difficulties. The aim of this article is to summarize surgical methods in patients having dysplastic spondylolisthesis with a slip of more than 25%, who were operated on, and to determine the optimal treatment algorithm according to the severity of the slip.
[popis_orig] => Dysplastic spondylolisthesis is a severe pathological condition, based on dysplastic changes in the lumbosacral part of the spine, that causes the asymmetry of the lumbosacral junction. The appropriate therapeutic algorithm remains controversial. As the gold standard, the surgical reposition of the slipped vertebra and 360 degrees fusion of the affected spinal segment is preferred. Thirty-two patients were operated on between the years 2005 and 2018. Different techniques of 360 degrees fusion, based on the severity of the displacement of the affected vertebral segment, were used. Herein, the advantages and disadvantages of different techniques of interbody fusion are discussed. The slippage and retention after reduction in the vertebrae are evaluated prior to the operation, postoperatively, one year after the surgery, and during follow-up, which was 7 years on average (minimum 2 years for a follow-up). Complications associated with the surgery are evaluated, in addition to the operation time, blood loss, spinopelvic parameters, and patient satisfaction with the surgery. All surgical techniques improved the slippage compared to preoperative conditions. The retention of the reposition was not changed significantly in postoperative controls. The incidence of neurological complications reached 12.5%. Surgical treatment is the only treatment option that successfully addressed the pathological principle of dysplastic spondylolisthesis. All of the surgical methods used led to restoring the symmetry of the lumbar spine, and to the improvement in both radiological parameters and the alleviation of subjective difficulties. The aim of this article is to summarize surgical methods in patients having dysplastic spondylolisthesis with a slip of more than 25%, who were operated on, and to determine the optimal treatment algorithm according to the severity of the slip.
[klicova_slova] => musculoskeletal system; spine; dysplastic spondylolisthesis; asymmetry; biomechanics; sagittal balance
[klicova_slova_orig] => musculoskeletal system; spine; dysplastic spondylolisthesis; asymmetry; biomechanics; sagittal balance
[url] => https://www.mdpi.com/2073-8994/14/7/1466
[oecd_obor_id] => 10700
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[odpovedny_utvar_nazev] => Ústav mechaniky těles, mechatroniky a biomechaniky
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[nadrazena_soucast_nazev] => Fakulta strojního inženýrství
[originalni_jazyk] => en
[schvalil_id] => 1770
[schvaleno] => 2024-05-13
[vykazovat_riv] => 1
[vykazovat_riv_zmeny] => 1
[slozka_id] =>
[posledni_diagnostika] =>
[vycet_osob] => VYSKOČIL, R.; PRYMEK, M.; RYBA, L.; SKLENSKY, J.; KOCANDA, J.; LUJC, M.; VOSYNEK, P.; REPKO, M.
[pocet_tvurcu] => 8
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[kod_doi] => 10.3390/sym14071466
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[pocet_zaznamu] =>
[zverejneno] => 1
[prvni_autor] =>
[korespondencni_autor] =>
[posledni_autor] =>
[znamka] =>
[kategorie_nazev] => Publikační výsledky
[druh_nazev] => Článek WoS
[druh_popis] => Článek v odborném periodiku je obsažen v databázi Web of Science společností Thomson Reuters s příznakem „Article“, „Review“ nebo „Letter“
[stav] => Schválený
[vysledek_kategorie_id] => PV
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[ins_ts] => 2025-09-22
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[riv_dodavka_oznaceni] => RIV23-MSM-26210___
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[citace_text] => VYSKOČIL, R.; PRYMEK, M.; RYBA, L.; SKLENSKY, J.; KOCANDA, J.; LUJC, M.; VOSYNEK, P.; REPKO, M. Vertebral Slip Morphology in Dysplastic Spondylolisthesis as a Criterion for the Choice of the L5/S1 Support (ALIF, PLIF, Fibular Graft) in Surgical Treatment. Symmetry-Basel, 2022, vol. 14, no. 7, 14 p. ISSN: 2073-8994.
[citace_html] => VYSKOČIL, R.; PRYMEK, M.; RYBA, L.; SKLENSKY, J.; KOCANDA, J.; LUJC, M.; VOSYNEK, P.; REPKO, M. Vertebral Slip Morphology in Dysplastic Spondylolisthesis as a Criterion for the Choice of the L5/S1 Support (ALIF, PLIF, Fibular Graft) in Surgical Treatment. Symmetry-Basel, 2022, vol. 14, no. 7, 14 p. ISSN: 2073-8994.
[citace_rtf] =>
[citace_bibtex] => @article{BUT182731,
author="Robert {Vyskočil} and Martin {Prymek} and Luděk {Ryba} and Jan {Sklensky} and Jan {Kocanda} and Michael {Lujc} and Petr {Vosynek} and Martin {Repko}",
title="Vertebral Slip Morphology in Dysplastic Spondylolisthesis as a Criterion for the Choice of the L5/S1 Support (ALIF, PLIF, Fibular Graft) in Surgical Treatment",
journal="Symmetry-Basel",
year="2022",
volume="14",
number="7",
pages="14",
doi="10.3390/sym14071466",
url="https://www.mdpi.com/2073-8994/14/7/1466"
}
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[nazev_en] => Vertebral Slip Morphology in Dysplastic Spondylolisthesis as a Criterion for the Choice of the L5/S1 Support (ALIF, PLIF, Fibular Graft) in Surgical Treatment
[popis_en] => Dysplastic spondylolisthesis is a severe pathological condition, based on dysplastic changes in the lumbosacral part of the spine, that causes the asymmetry of the lumbosacral junction. The appropriate therapeutic algorithm remains controversial. As the gold standard, the surgical reposition of the slipped vertebra and 360 degrees fusion of the affected spinal segment is preferred. Thirty-two patients were operated on between the years 2005 and 2018. Different techniques of 360 degrees fusion, based on the severity of the displacement of the affected vertebral segment, were used. Herein, the advantages and disadvantages of different techniques of interbody fusion are discussed. The slippage and retention after reduction in the vertebrae are evaluated prior to the operation, postoperatively, one year after the surgery, and during follow-up, which was 7 years on average (minimum 2 years for a follow-up). Complications associated with the surgery are evaluated, in addition to the operation time, blood loss, spinopelvic parameters, and patient satisfaction with the surgery. All surgical techniques improved the slippage compared to preoperative conditions. The retention of the reposition was not changed significantly in postoperative controls. The incidence of neurological complications reached 12.5%. Surgical treatment is the only treatment option that successfully addressed the pathological principle of dysplastic spondylolisthesis. All of the surgical methods used led to restoring the symmetry of the lumbar spine, and to the improvement in both radiological parameters and the alleviation of subjective difficulties. The aim of this article is to summarize surgical methods in patients having dysplastic spondylolisthesis with a slip of more than 25%, who were operated on, and to determine the optimal treatment algorithm according to the severity of the slip.
[klicova_slova_en] => musculoskeletal system; spine; dysplastic spondylolisthesis; asymmetry; biomechanics; sagittal balance
[vysledek_datum] => 2022-07-18T00:00:00+02:00
)
[10] => Array
(
[vysledek_id] => 182741
[vysledek_druh_id] => ARTWOS
[ex_vysledek_id] => 147604
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[nazev] => Development and demonstration of indoor three-dimensional localization using IR CMOS sensors for Mobile manipulators
[nazev_orig] => Development and demonstration of indoor three-dimensional localization using IR CMOS sensors for Mobile manipulators
[duvernost_udaju_id] => S
[popis] => A novel 3D localization scheme has been proposed for smart living or computer animation applications. This scheme utilizes two CMOS IR sensors originally used for Nintendo wiimote for performing stereo range finding on IR LEDs. Essential kinematics relations are developed to transform the detected pixel information into 3D spatial coordinates of IR LEDs. The sensing distance can be up to 3-4 meters and the localization scattering is characterized between 0.5 and 5 cm, depended on the sensing distance under proper setup. Such performance could actually satisfy the requirement in coarse navigation and motion planning of indoor mobile devices. Meanwhile, an Arduino-based IR LED switching technique for breaking the constraint on available Bluetooth communication channels is also proposed and implemented. By controlling the switching of IR LED units sequentially, the equivalent available channels can be extended with a tradeoff in system bandwidth. This 3D localization system can detect more IR LEDs than the number of original channels and each IR LED can be identified correctly even if it passes through a shelter. Several testing systems are setup for evaluating the performance on the 3D localization and the IR LED switching control, as well as for demonstrating the application potentials. The preliminary results indicate that the position of IR LEDs can be identified with sufficient accuracy and the system can also simultaneously detect more IR LEDs than the original limitation. With proper arrangement in deployment, it is possible to further increase the sensing zone to cover the entire indoor living space. This novel localization system is thus expected to have a great potential on applications such as mobile robots monitoring or human motion capture for animations. (C) 2021 Elsevier B.V. All rights reserved.
[popis_orig] => A novel 3D localization scheme has been proposed for smart living or computer animation applications. This scheme utilizes two CMOS IR sensors originally used for Nintendo wiimote for performing stereo range finding on IR LEDs. Essential kinematics relations are developed to transform the detected pixel information into 3D spatial coordinates of IR LEDs. The sensing distance can be up to 3-4 meters and the localization scattering is characterized between 0.5 and 5 cm, depended on the sensing distance under proper setup. Such performance could actually satisfy the requirement in coarse navigation and motion planning of indoor mobile devices. Meanwhile, an Arduino-based IR LED switching technique for breaking the constraint on available Bluetooth communication channels is also proposed and implemented. By controlling the switching of IR LED units sequentially, the equivalent available channels can be extended with a tradeoff in system bandwidth. This 3D localization system can detect more IR LEDs than the number of original channels and each IR LED can be identified correctly even if it passes through a shelter. Several testing systems are setup for evaluating the performance on the 3D localization and the IR LED switching control, as well as for demonstrating the application potentials. The preliminary results indicate that the position of IR LEDs can be identified with sufficient accuracy and the system can also simultaneously detect more IR LEDs than the original limitation. With proper arrangement in deployment, it is possible to further increase the sensing zone to cover the entire indoor living space. This novel localization system is thus expected to have a great potential on applications such as mobile robots monitoring or human motion capture for animations. (C) 2021 Elsevier B.V. All rights reserved.
[klicova_slova] => IR CMOS sensors; 3D localization; Arduino-based IR LED control; Robot positioning
[klicova_slova_orig] => IR CMOS sensors; 3D localization; Arduino-based IR LED control; Robot positioning
[url] => https://www.sciencedirect.com/science/article/pii/S0924424720318124
[oecd_obor_id] => 20200
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[odpovedny_utvar_nazev] => Ústav mechaniky těles, mechatroniky a biomechaniky
[odpovedny_utvar_zkratka] => ÚMTMB
[nadrazena_soucast_id] => 4
[nadrazena_soucast_zkratka] => FSI
[nadrazena_soucast_nazev] => Fakulta strojního inženýrství
[originalni_jazyk] => en
[schvalil_id] => 182808
[schvaleno] => 2023-02-13
[vykazovat_riv] => 1
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[slozka_id] =>
[posledni_diagnostika] =>
[vycet_osob] => LI, T.; CHEN, K.; VĚCHET, S.
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[kod_doi] => 10.1016/j.sna.2020.112497
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[zverejneno] => 1
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[korespondencni_autor] =>
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[znamka] =>
[kategorie_nazev] => Publikační výsledky
[druh_nazev] => Článek WoS
[druh_popis] => Článek v odborném periodiku je obsažen v databázi Web of Science společností Thomson Reuters s příznakem „Article“, „Review“ nebo „Letter“
[stav] => Schválený
[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 0924-4247
[identifikator_popis] => ISSN - SENSORS AND ACTUATORS A-PHYSICAL (CH)
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[citace_text] => LI, T.; CHEN, K.; VĚCHET, S. Development and demonstration of indoor three-dimensional localization using IR CMOS sensors for Mobile manipulators. SENSORS AND ACTUATORS A-PHYSICAL, 2021, vol. 318, no. 112497, p. 1-17. ISSN: 1873-3069.
[citace_html] => LI, T.; CHEN, K.; VĚCHET, S. Development and demonstration of indoor three-dimensional localization using IR CMOS sensors for Mobile manipulators. SENSORS AND ACTUATORS A-PHYSICAL, 2021, vol. 318, no. 112497, p. 1-17. ISSN: 1873-3069.
[citace_rtf] =>
[citace_bibtex] => @article{BUT182741,
author="LI, T. and CHEN, K. and VĚCHET, S.",
title="Development and demonstration of indoor three-dimensional localization using IR CMOS sensors for Mobile manipulators",
journal="SENSORS AND ACTUATORS A-PHYSICAL",
year="2021",
volume="318",
number="112497",
pages="1--17",
doi="10.1016/j.sna.2020.112497",
issn="0924-4247",
url="https://www.sciencedirect.com/science/article/pii/S0924424720318124"
}
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[oecd_tree_obor_nazev] => 2.2 Electrical engineering, Electronic engineering, Information engineering
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[oecd_tree_podobor_nazev] =>
[poznamka_metriky] =>
[nazev_en] => Development and demonstration of indoor three-dimensional localization using IR CMOS sensors for Mobile manipulators
[popis_en] => A novel 3D localization scheme has been proposed for smart living or computer animation applications. This scheme utilizes two CMOS IR sensors originally used for Nintendo wiimote for performing stereo range finding on IR LEDs. Essential kinematics relations are developed to transform the detected pixel information into 3D spatial coordinates of IR LEDs. The sensing distance can be up to 3-4 meters and the localization scattering is characterized between 0.5 and 5 cm, depended on the sensing distance under proper setup. Such performance could actually satisfy the requirement in coarse navigation and motion planning of indoor mobile devices. Meanwhile, an Arduino-based IR LED switching technique for breaking the constraint on available Bluetooth communication channels is also proposed and implemented. By controlling the switching of IR LED units sequentially, the equivalent available channels can be extended with a tradeoff in system bandwidth. This 3D localization system can detect more IR LEDs than the number of original channels and each IR LED can be identified correctly even if it passes through a shelter. Several testing systems are setup for evaluating the performance on the 3D localization and the IR LED switching control, as well as for demonstrating the application potentials. The preliminary results indicate that the position of IR LEDs can be identified with sufficient accuracy and the system can also simultaneously detect more IR LEDs than the original limitation. With proper arrangement in deployment, it is possible to further increase the sensing zone to cover the entire indoor living space. This novel localization system is thus expected to have a great potential on applications such as mobile robots monitoring or human motion capture for animations. (C) 2021 Elsevier B.V. All rights reserved.
[klicova_slova_en] => IR CMOS sensors; 3D localization; Arduino-based IR LED control; Robot positioning
[vysledek_datum] => 2021-03-14T00:00:00+01:00
)
[11] => Array
(
[vysledek_id] => 182744
[vysledek_druh_id] => UV
[ex_vysledek_id] => 21810
[vysledek_rok] => 2023
[nazev] => Ložiskový uzel pro vysokootáčkový rotor radiálního čerpadla s integrovaným pohonem
[nazev_orig] => Ložiskový uzel pro vysokootáčkový rotor radiálního čerpadla s integrovaným pohonem
[duvernost_udaju_id] => S
[popis] => Technické řešení si klade za úkol navrhnout ložiskový uzel pro vysokootáčkový rotor radiálního čerpadla určeného zejména pro dopravu kapalného kyslíku do spalovacího prostoru raketového nosiče, a to při zachování žádoucí tuhosti uložení rotoru a spolehlivosti při všech provozních režimech.
[popis_orig] => Technické řešení si klade za úkol navrhnout ložiskový uzel pro vysokootáčkový rotor radiálního čerpadla určeného zejména pro dopravu kapalného kyslíku do spalovacího prostoru raketového nosiče, a to při zachování žádoucí tuhosti uložení rotoru a spolehlivosti při všech provozních režimech.
[klicova_slova] => Ložiskový uzel, radiální ložiska, integrovaný pohon
[klicova_slova_orig] => Ložiskový uzel, radiální ložiska, integrovaný pohon
[url] =>
[oecd_obor_id] => 20301
[odpovedny_utvar_id] => 157
[odpovedny_utvar_nazev] => Ústav mechaniky těles, mechatroniky a biomechaniky
[odpovedny_utvar_zkratka] => ÚMTMB
[nadrazena_soucast_id] => 4
[nadrazena_soucast_zkratka] => FSI
[nadrazena_soucast_nazev] => Fakulta strojního inženýrství
[originalni_jazyk] => cs
[schvalil_id] => 15110
[schvaleno] => 2023-02-13
[vykazovat_riv] => 1
[vykazovat_riv_zmeny] => 1
[slozka_id] =>
[posledni_diagnostika] =>
[vycet_osob] => NÁVRAT, T.; POKORNÝ, J.; POPELKA, M.; PAVLÍK, O.; VAJDÁK, M.
[pocet_tvurcu] => 5
[tvurci_ids] =>
[poznamka] =>
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[zverejneno] => 1
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[korespondencni_autor] =>
[posledni_autor] =>
[znamka] =>
[kategorie_nazev] => Aplikované výsledky
[druh_nazev] => Užitný vzor
[druh_popis] => Užitný vzor
[stav] => Schválený
[vysledek_kategorie_id] => AV
[vysledek_system_kategorie_id] => PA
[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] => NÁVRAT, T.; POKORNÝ, J.; POPELKA, M.; PAVLÍK, O.; VAJDÁK, M.; Frentech Aerospace s.r.o., Jarní 977/48, 614 00 Brno, Maloměřice, Česká republika: Ložiskový uzel pro vysokootáčkový rotor radiálního čerpadla s integrovaným pohonem. 36808, Užitný vzor. (2023)
[citace_html] => NÁVRAT, T.; POKORNÝ, J.; POPELKA, M.; PAVLÍK, O.; VAJDÁK, M.; Frentech Aerospace s.r.o., Jarní 977/48, 614 00 Brno, Maloměřice, Česká republika: Ložiskový uzel pro vysokootáčkový rotor radiálního čerpadla s integrovaným pohonem. 36808, Užitný vzor. (2023)
[citace_rtf] =>
[citace_bibtex] => @misc{BUT182744,
author="Tomáš {Návrat} and Jan {Pokorný} and Michal {Popelka} and Ondřej {Pavlík} and Michal {Vajdák}",
title="Ložiskový uzel pro vysokootáčkový rotor radiálního čerpadla s integrovaným pohonem",
year="2023",
note="Utility model"
}
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[oecd_tree_oblast_nazev] => 2. Engineering and Technology
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[oecd_tree_obor_nazev] => 2.3 Mechanical engineering
[oecd_tree_podobor_id] => 20301
[oecd_tree_podobor_nazev] => Mechanical engineering
[poznamka_metriky] =>
[nazev_en] => Bearing unit for high-speed radial pump rotor with integrated drive
[popis_en] => The technical solution sets itself the task of designing a bearing unit for a high-speed rotor of a radial pump designed especially for the transport of liquid oxygen into the combustion space of a rocket carrier, while maintaining the desired stiffness of the rotor bearing and reliability in all operating modes.
[klicova_slova_en] => Bearing unit, radial bearings, integrated drive
[vysledek_datum] => 2023-02-07T00:00:00+01:00
)
[12] => Array
(
[vysledek_id] => 182777
[vysledek_druh_id] => CONPA
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[nazev] => Dynamic model of peristaltic pump with arterial tree for real-time pressure waveform control
[nazev_orig] => Dynamic model of peristaltic pump with arterial tree for real-time pressure waveform control
[duvernost_udaju_id] => S
[popis] => Despite many studies confirming that roller pumps are more suitable for cardiovascular bypasses or extracorporeal membrane oxygenation sessions than centrifugal flow pumps, they do not reach their potential, mainly due to unpredictable pressure pulsations causing negative effects on the vessels and organs. The aim of this research is to create a dynamic model of a hydraulic system consisting of a peristaltic pump connected to an arterial tree. Conventional methods of modelling such systems use computationally intensive Computational fluid dynamics (CFD) or Fluid-structure interaction (FSI) simulations and are usually designed to analyze the properties of such mechanisms. Such models do not allow the control of the system in real time, and therefore it is reasonable to create a simplified mathematical model that allows feedback adaptive control of the outlet pressure depending on the parameters of the system. This newly created model can be used to design a controller for the speed of the pump to achieve a physiologically relevant pressure wave. Model was verified on a physical plant consisting of a stepper motor-driven pump with an arterial tree made of silicone tubes that simulates the resistance of the vascular circulation.
[popis_orig] => Despite many studies confirming that roller pumps are more suitable for cardiovascular bypasses or extracorporeal membrane oxygenation sessions than centrifugal flow pumps, they do not reach their potential, mainly due to unpredictable pressure pulsations causing negative effects on the vessels and organs. The aim of this research is to create a dynamic model of a hydraulic system consisting of a peristaltic pump connected to an arterial tree. Conventional methods of modelling such systems use computationally intensive Computational fluid dynamics (CFD) or Fluid-structure interaction (FSI) simulations and are usually designed to analyze the properties of such mechanisms. Such models do not allow the control of the system in real time, and therefore it is reasonable to create a simplified mathematical model that allows feedback adaptive control of the outlet pressure depending on the parameters of the system. This newly created model can be used to design a controller for the speed of the pump to achieve a physiologically relevant pressure wave. Model was verified on a physical plant consisting of a stepper motor-driven pump with an arterial tree made of silicone tubes that simulates the resistance of the vascular circulation.
[klicova_slova] => electro-hydraulic analogy; Peristaltic pump; pressure waveform
[klicova_slova_orig] => electro-hydraulic analogy; Peristaltic pump; pressure waveform
[url] => https://ieeexplore-ieee-org.ezproxy.lib.vutbr.cz/stamp/stamp.jsp?tp=&arnumber=9982882
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[citace_text] => FORMÁNEK, M.; APPEL, M.; JAGOŠ, J.; KOHÚT, J.; RAJCHL, M. Dynamic model of peristaltic pump with arterial tree for real-time pressure waveform control. In Proceedings of the 2022 20th International Conference on Mechatronics - Mechatronika, ME 2022. Plzeň: Institute of Electrical and Electronics Engineers Inc., 2022. 6 p. ISBN: 978-1-6654-1040-3.
[citace_html] => FORMÁNEK, M.; APPEL, M.; JAGOŠ, J.; KOHÚT, J.; RAJCHL, M. Dynamic model of peristaltic pump with arterial tree for real-time pressure waveform control. In Proceedings of the 2022 20th International Conference on Mechatronics - Mechatronika, ME 2022. Plzeň: Institute of Electrical and Electronics Engineers Inc., 2022. 6 p. ISBN: 978-1-6654-1040-3.
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author="Martin {Formánek} and Martin {Appel} and Jiří {Jagoš} and Jiří {Kohút} and Matej {Rajchl}",
title="Dynamic model of peristaltic pump with arterial tree for real-time pressure waveform control",
booktitle="Proceedings of the 2022 20th International Conference on Mechatronics - Mechatronika, ME 2022",
year="2022",
pages="6",
publisher="Institute of Electrical and Electronics Engineers Inc.",
address="Plzeň",
doi="10.1109/ME54704.2022.9982882",
isbn="978-1-6654-1040-3",
url="https://ieeexplore-ieee-org.ezproxy.lib.vutbr.cz/stamp/stamp.jsp?tp=&arnumber=9982882"
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[nazev_en] => Dynamic model of peristaltic pump with arterial tree for real-time pressure waveform control
[popis_en] => Despite many studies confirming that roller pumps are more suitable for cardiovascular bypasses or extracorporeal membrane oxygenation sessions than centrifugal flow pumps, they do not reach their potential, mainly due to unpredictable pressure pulsations causing negative effects on the vessels and organs. The aim of this research is to create a dynamic model of a hydraulic system consisting of a peristaltic pump connected to an arterial tree. Conventional methods of modelling such systems use computationally intensive Computational fluid dynamics (CFD) or Fluid-structure interaction (FSI) simulations and are usually designed to analyze the properties of such mechanisms. Such models do not allow the control of the system in real time, and therefore it is reasonable to create a simplified mathematical model that allows feedback adaptive control of the outlet pressure depending on the parameters of the system. This newly created model can be used to design a controller for the speed of the pump to achieve a physiologically relevant pressure wave. Model was verified on a physical plant consisting of a stepper motor-driven pump with an arterial tree made of silicone tubes that simulates the resistance of the vascular circulation.
[klicova_slova_en] => electro-hydraulic analogy; Peristaltic pump; pressure waveform
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