Lidé na fakultě
prof. Ing. Josef Jíra, CSc.

rozklikni NABÍDKU

Publikace

informace pocházejí z univerzitní databáze V3S

Autoři:
prof. Ing. Josef Jíra, CSc.; doc. Ing. Jitka Jírová, CSc.; Micka, M.; Ing. Jitka Řezníčková, CSc.
Publikováno:
2017, Acta Polytechnica CTU Proceedings, 2017 (11), p. 22-30), ISSN 2336-5382
Anotace:
A comparative analysis using the programme ANSYS (FEM) deals with the generation of the computation model and with the assessment of theinfluence of the geogrids and the vertical lime-cement columnson the bearing capacity and deformation of the railway embankment in the less load- bearing subsoil. The graphic outputs give an overview of the field layout of equivalent stresses and deformation in the construction of the railway substructure.
Typ:
Článek v odborném recenzovaném periodiku cizojazyčně

Autoři:
prof. Ing. Josef Jíra, CSc.
Publikováno:
2017, ISBN 978-80-01-06140-4, ISSN 2336-5382
Typ:
Sborník z fakultní konference cizojazyčně

Autoři:
Ing. Jitka Řezníčková, CSc.; Král, M.; Vašátko, J.; Vitteková, M.; prof. Ing. Josef Jíra, CSc.
Publikováno:
2015, ISBN 978-80-214-5233-6
Typ:
Sborník z lokální konf. v češtině

Autoři:
prof. Ing. Josef Jíra, CSc.; doc. Ing. Jitka Jírová, CSc.; Micka, M.; Pajkrt, J.; doc. Ing. Drahomír Schmidt, Ph.D.
Publikováno:
2013, Proceedings of the Fourteenth International Conference on Civil, Structural and Environmental Engineering Computing, Stirling, Civil-Comp Press Ltd), ISBN 978-1-905088-57-7, ISSN 1759-3433
Anotace:
This paper describes numerical analysis, using the programme ANSYS, for the generation of the computation model and the assessment of the influence of the geosynthetic grid and the vertical lime-cement columns on the bearing capacity and the deformation of a railway embankment on a low load-bearing subsoil. The stiffening grid is located on the interface between the embankment and the subsoil. The subsoil is also reinforced by the vertical lime-cement columns. There reinforcing effect on the behaviour of the soil construction is analysed with different types of reinforcement layers. The results of the computational modelling show that the reinforcement of the railway embankment has a favourable effect on the bearing capacity of the subgrade. The graphic outputs give a clear overview of the field layout of the equivalent stresses and the deformation during the construction of the railway substructure. A comparative analysis shows that the reinforcement of the embankment, especially the columns is important mainly for poor soils in the railway embankment, i.e. for soils with poorer material characteristics and low bearing capacity.
DOI:
10.4203/ccp.102.29
Typ:
Stať ve sborníku z mezinár. konf.

Autoři:
prof. Ing. Josef Jíra, CSc.; doc. Ing. Jitka Jírová, CSc.; Micka, M.
Publikováno:
2011, The Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing, Stirling, Civil-Comp Press Ltd), ISBN 978-1-905088-46-1, ISSN 1759-3433
Anotace:
Dampening capability of the protective bicycle helmet during fall is proved experimentally by drop test. From measured values of acceleration in gravity centre of the dummy head it derives HIC criterion, which represent level of the dampening quality protection of the head against effects of overloading. Drop test can be simulated numerically by LS DYNA programme. Model of the dummy head is created in accordance with test standards, model of the helmet is made out from 3D scanning for three model variants - without hardening of the surface, with hardening outer or over all surface. Values of the HIC criteria are determinated from estimated results of accelerations during the drop test simulation.
Typ:
Stať ve sborníku z mezinár. konf.

Autoři:
prof. Ing. Josef Jíra, CSc.; Micka, M.; Puchmajer, P.
Publikováno:
2010, ISBN 978-80-01-04592-3
Anotace:
Skriptum je určeno posluchačům bakalářského studia Fakulty dopravní ČVUT. V sedmi kapitolách jsou uvedeny řešené příklady ze základů kinematiky a dynamiky, dyańamiky tětes a soustav, kmitání soustavy s jedním astupněm volnosti a teorie středového rázu těles.
Typ:
Vysokoškolské skriptum v češtině

Autoři:
prof. Ing. Josef Jíra, CSc.; doc. Ing. Jitka Jírová, CSc.; Micka, M.
Publikováno:
2010, ANSYS 2010, Praha, TechSoft Engineering), p. 1-8), ISBN 978-80-254-8388-6
Anotace:
Tlumící schopnost ochranné cyklistické přilby při pádu se zkouší experimentálně pádovou zkouškou. Z naměřených hodnot zrychlení v těžišti makety hlavy se odvozuje HIC kritérium, kterým se vyjadřuje úroveň tlumících vlastností ochrany hlavy před účinky přetížení. Pádovou zkoušku lze simulovat numericky v programu LS DYNA. Model makety hlavy je vytvořen podle zkušební normy, model helmy z 3D skenování pro tři varianty - bez zpevnění povrchu, se zpevněním vnějšího či celého povrchu. Z výsledků zjištěných zrychlení při modelování pádového testu jsou určeny hodnoty kritéria HIC.
Typ:
Stať ve sborníku z lokální konf. česky

Autoři:
Jiroušek, O.; prof. Ing. Josef Jíra, CSc.; Hrdlička, O.; Kunecký, J.; doc. Ing. Daniel Kytýř, Ph.D.; Ing. Jan Vyčichl, Ph.D.; Ing. Tomáš Doktor, Ph.D.
Publikováno:
2010, Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 224 (4), p. 259-267), ISSN 0954-4097
Anotace:
This article deals with finite-element (FE) modelling of the reinforcing effect of the geosynthetic material used in the construction of a ballasted track. Various different designs of geosynthetic material are studied and their reinforcing effects are evaluated in terms of the total settlement reduction. Three-dimensional FE models of the reinforced railway superstructure are compared to a reference FE model with no reinforcement. Each geosynthetic material is modelled respecting its material properties, and the interaction with the ballast material is simulated according to its primary function.
DOI:
10.1243/09544097JRRT319
Typ:
Článek v periodiku excerpovaném SCI Expanded

Autoři:
prof. Ing. Ondřej Jiroušek, Ph.D.; Horníček, L.; prof. Ing. Josef Jíra, CSc.; Kunecký, J.; doc. Ing. Daniel Kytýř, Ph.D.; Ing. Jan Vyčichl, Ph.D.
Publikováno:
2009, Proceedings of the Twelfth International Conference on Civil, Structural and Environmental Engineering Computing, Stirling, Civil-Comp Press Ltd), p. 69-69), ISBN 978-1-905088-30-0, ISSN 1759-3433
Anotace:
Paper deals with numerical and experimental investigation of ballasted track under cyclic loading. The experimental part deals with measurement of settlements of different track bed designs under repetitive load. The designs are tested in laboratory conditions in a small-scale box filled with ballast material reinforced with different type of geosynthetics. Different thickness of the ballast and subballast layers are tested and results in terms of measured settlements at different locations are compared with FE models.
Typ:
Abstrakt ve sborníku z mezinár. konf.

Autoři:
prof. Ing. Ondřej Jiroušek, Ph.D.; Horníček, L.; prof. Ing. Josef Jíra, CSc.; Kunecký, J.; doc. Ing. Daniel Kytýř, Ph.D.; Ing. Jan Vyčichl, Ph.D.
Publikováno:
2009, Proceedings of the Twelfth International Conference on Civil, Structural and Environmental Engineering Computing, Stirling, Civil-Comp Press Ltd), ISBN 978-1-905088-31-7, ISSN 1759-3433
Anotace:
This paper deals with numerical and experimental investigation of ballasted track under cyclic loading. The experimental part deals with measurement of settlements of different track bed designs under repetitive load. The designs are tested in laboratory conditions in a small-scale box filled with ballast material reinforced with different type of geosynthetics. Different thickness of the ballast and subballast layers are tested and results in terms of measured settlements at different locations are compared with FE models.
Typ:
Stať ve sborníku z mezinár. konf.

Autoři:
doc. Ing. Daniel Kytýř, Ph.D.; Ing. Jaroslav Valach, Ph.D.; prof. Ing. Ondřej Jiroušek, Ph.D.; prof. Ing. Josef Jíra, CSc.; Frankeová, D.
Publikováno:
2009, 8th Youth Symposium on Experimental Solid Mechanics, Budapešť, Scientific Society of Mechanical Engineers), ISBN 978-963-9058-26-2
Anotace:
Article deals with investigation of physical and mechanical properties of trabecular bone. Non-destructive ultrasonic tests and heat measurements were used to determine the modulus of elasticity of each sample. The velocity of longitudinal ultrasonic waves' propagation depends on the mechanical properties of the material, so the Young's modulus can be obtained from the formula coupling elasticity modulus, wave velocity and bone density.
Typ:
Stať ve sborníku z mezinár. konf.

Autoři:
prof. Ing. Josef Jíra, CSc.; doc. Ing. Jitka Jírová, CSc.; Micka, M.
Publikováno:
2009, Proceedings of the Twelfth International Conference on Civil, Structural and Environmental Engineering Computing, Stirling, Civil-Comp Press Ltd), p. 1-11), ISBN 978-1-905088-31-7, ISSN 1759-3433
Anotace:
The aim of this work is to verity the usability of numerical modelling for soil construction of a railway reinforced with geosynthetics when using the ANSYS programme. For the computation model of a simple ground body the process of model creation, choice of finite elements, definition of material features, application of contact elements, definition of boundary conditions and setting the parameters of computation were verified. The bearing capacity of soil construction has great importance for practice. The reinforcement of a geogrid has a favourable effect on bearing capacity of the embankment. At the lower embankment the bearing capacity has increased by 46%, at the higher by 13%. Also the prestress of the reinforcement is favourable.
Typ:
Stať ve sborníku z mezinár. konf.

Autoři:
prof. Ing. Josef Jíra, CSc.; doc. Ing. Jitka Jírová, CSc.; Kunecký, J.; Jiroušek, O.; Micka, M.
Publikováno:
2009, Proceedings of The Third International Conference on Mechanics of Biomaterials and Tissues, Kidlington Oxford OX GB, Elsevier), p. 1-11)
Anotace:
The FE model of the human head enables to describe possible injury mechanisms and to quantify design parameters of a protective helmet related to a specific impact event. It can be used also in the forensic medicine and for the analysis of consequences of traffic accidents
Typ:
Stať ve sborníku z mezinár. konf.

Autoři:
prof. Ing. Ondřej Jiroušek, Ph.D.; Kunecký, J.; prof. Ing. Josef Jíra, CSc.; Horníček, L.
Publikováno:
2008, Současnost a budoucnost dopravy, Praha, České vysoké učení technické v Praze, Fakulta dopravní), p. 95-98), ISBN 978-80-01-04056-0
Anotace:
Numerical investigation of bearing capacity of railway substructure using finite element method and laboratory experiments is presented. A set of parametric FE models is built and unified approach for assessment of bearing capacity of the construction presented. Results are presented in terms of design graphs, where for every type of substructure design resulting bearing capacity is evaluated. Presented methodology is easily extensible for reinforcing effects of layer inclusion, geogrid placement or use of cemented layers.
Typ:
Stať ve sborníku z mezinár. konf. cizojazyčně

Autoři:
doc. Ing. Daniel Kytýř, Ph.D.; Ing. Jan Vyčichl, Ph.D.; doc. Ing. Jitka Jírová, CSc.; prof. Ing. Josef Jíra, CSc.
Publikováno:
2008, Proceedings of the Sixth International Conference on Engineering Computational Technology, Stirling, Civil-Comp Press Ltd), p. 160-160), ISBN 978-1-905088-26-3
Anotace:
The paper deals with numerical analysis of hip joint surgery that effects changes of stress field in acetabulum area. Pelvic bone geometry was obtained from computer tomography by automatic generation. Material properties of trabecular bone were obtained from experiments by the optical identification method. The numerical analysis compares shapes and peak values of stress field in the acetabulum area and the cement layer. Ultimate values of first principal stress, third principal stress and total displacements were used as reference magnitudes.
DOI:
10.4203/ccp.89.160
Typ:
Stať ve sborníku z mezinár. konf.

Autoři:
prof. Ing. Josef Jíra, CSc.; prof. Ing. Ondřej Jiroušek, Ph.D.; Horníček, L.
Publikováno:
2007, Proceedings of the Eleventh International Conference on Civil, Structural, and Environmental Engineering Computing, Stirling, Civil-Comp Press Ltd), p. 1-7), ISBN 978-1-905088-17-1
Anotace:
Article deals with numerical investigation of subgrade improvement methods using geogrids. Numerical modelling for design of ballast bed construction using either traditional materials (ballast and subballast layer) with or without reinforcement using geosynthetics is presented.
Typ:
Stať ve sborníku z mezinár. konf.

Autoři:
Ing. Jan Vyčichl, Ph.D.; doc. Ing. Daniel Kytýř, Ph.D.; doc. Ing. Jitka Jírová, CSc.; prof. Ing. Josef Jíra, CSc.
Publikováno:
2007, Engineering Mechanics 2007, Praha, Ústav termomechaniky AV ČR), p. 321-322), ISBN 978-80-87012-06-2
Anotace:
The article deals with contact stress analysis of pelvic bone after implantation of cemented acetabular component with imperfections of cemented layer. 3D high resolution FE model of pelvic bone was created from the sequence of CT-slices. Boolean operations were used for inserting the spherical cemented component. Cemented component was eccentrically inserted into the pelvic bone and that created imperfection as non-uniform cement layer. Two contacts were defined in the FE model. The first contact is defined between the cement layer and the pelvic bone and the second one is between the cement layer and the polyethylene cup. The model was loaded by quasi-static joint forces, representing the maximum value of stance phase of gait [Bergmann et al., 2001]. The FE model was used to ascertain the contact stress conditions in the underlying subchondral bone.
Typ:
Stať ve sborníku z mezinár. konf. cizojazyčně

Autoři:
doc. Ing. Daniel Kytýř, Ph.D.; doc. Ing. Jitka Jírová, CSc.; Ing. Jan Vyčichl, Ph.D.; prof. Ing. Josef Jíra, CSc.
Publikováno:
2007, Engineering Mechanics 2007, Praha, Ústav termomechaniky AV ČR), p. 151-152), ISBN 978-80-87012-06-2
Anotace:
In general all orthopaedic operations may cause the change of muscle balance. This dysbalance various not only range of movement but also the loading vector during the movement. In case of hemiarthroplasty when the new joint is created by femoral replacement and intact acetabulum could be the dysbalance very dangerous. Migration of the implant head after hemiarthoplasty is the problem which observed to nearly at all patients. Muscle dysbalance and shape of acetabulum are the two main problems solved by numerical analysis of hip joint FE model.
Typ:
Stať ve sborníku z mezinár. konf. cizojazyčně

Autoři:
doc. Ing. Daniel Kytýř, Ph.D.; doc. Ing. Jitka Jírová, CSc.; prof. Ing. Josef Jíra, CSc.; Micka, M.
Publikováno:
2007, Finite Element Modelling in Biomechanics and Mechanobiology, Dublin, Trinity Centre for Bioengineering), p. 173-174), ISBN 0-9548583-1-X
Anotace:
Hip joint replacement is the only way for millions of patients to recover their mobility. Hemiarthroplasty is a surgical procedure which replaces one half of the joint with an artificial surface and leaves the other part in its natural (pre-operative) state, which article deals with. There are volumetric models used for analysis. Pelvic bone geometry was obtained from computer tomography using semi-automatic generation. Model was solved in various loading directions with loading direction from -45° to 10°. The stress and displacement fields show that primary migration of the replacement head follows the direction of loading.
Typ:
Stať ve sborníku z mezinár. konf.

Autoři:
prof. Ing. Josef Jíra, CSc.; Krumphanzl, V.; doc. Ing. Jitka Jírová, CSc.; Micka, M.
Publikováno:
2007, Proceedings of the Eleventh International Conference on Civil, Structural and Environmental Engineering Computing, Stirling, Civil-Comp Press Ltd), p. 951-959), ISBN 978-1-905088-15-7
Anotace:
The paper deals with the pilot project of modelling the drop of the head with a helmet when the ANSYS LS DYNA programme is used. The goal of the project is to get details about the contact forces or stresses between the cranium and helmet, which will be used for further development of safety helmets or for modelling of a head injury at accident. The properties of safety helmets are investigated on a drop tester in experiments. For the brain protection the most significant fact is to know the maximum acceleration at the impact as the high level overloading permanently damages the brain.
Typ:
Stať ve sborníku z mezinár. konf.

Autoři:
prof. Ing. Josef Jíra, CSc.; Ing. Jan Vyčichl, Ph.D.; doc. Ing. Jitka Jírová, CSc.; Sosna, A.; Pokorný, D.
Publikováno:
2006, Fourth International IASTED Conference on BIOMECHANICS, Gran Meliá Salinas, Lanzarote, IASTED), p. 11-14), ISBN 0-88986-604-X
Anotace:
The paper deals with contact stress analysis of pelvic bone after implantation of cemented acetabular component with imperfections of cemented layer. 3D high resolution FE model of pelvic bone was created from the sequence of Computer Tomography (CT) slices. The magnitude and character of the contact stress distribution in subchondral bone depends on the type of imperfections in cement layer. Several openings are often drilled into the bone to improve the fixation of the cemented acetabular cup into the pelvic bone. Boolean operations were used for inserting the spherical cemented acetabular implant. Two contacts were defined in the FE model. The first contact is defined between the cement layer and the pelvic bone and the second one is between the cement layer and the polyethylene cup. The model was loaded by quasistatic joint forces, representing the maximum value of stance phase of gait.
Typ:
Stať ve sborníku z mezinár. konf.

Autoři:
prof. Ing. Ondřej Jiroušek, Ph.D.; doc. Ing. Jitka Jírová, CSc.; prof. Ing. Josef Jíra, CSc.
Publikováno:
2006, Fourth International IASTED Conference on BIOMECHANICS, Gran Meliá Salinas, Lanzarote, IASTED), p. 142-147), ISBN 0-88986-604-X
Anotace:
Paper presents a study conducted to validate a finite element model of human skull in brain response due to frontal and lateral impacts. The brain is modelled as a homogeneous inviscid fluid. Maximal values of intracranial pressure and shear stress distributions predicted from FE simulations were compared to values obtained from experiments done by other authors.
Typ:
Stať ve sborníku z mezinár. konf.

Autoři:
prof. Ing. Ondřej Jiroušek, Ph.D.; prof. Ing. Josef Jíra, CSc.
Publikováno:
2006, Engineering Mechanics 2006, Praha, Ústav teoretické a aplikované mechaniky AV ČR), p. 140-141), ISBN 80-86246-27-2
Anotace:
Paper presents a detailed finite element model of human head used for head injury criteria assessment. Today most used HICs are based on the history of linear acceleration only. However, the rotational acceleration plays also important role, due to the rupture of bridging veins involved in the relative motion between the skull and the brain. Presented model allows for new approach to define the HIC based on either strain energy or on combination of linear and rotational acceleration history. The model is based on a series of CT and MRI scans of a cadaver head of high resolution and is composed of three different regions: (i) skull, (ii) brain and (iii) subarachnoidal space. Discussion on material properties of these four distinct regions is given in the paper.
Typ:
Stať ve sborníku z mezinár. konf. cizojazyčně

Autoři:
doc. Ing. Daniel Kytýř, Ph.D.; doc. Ing. Jitka Jírová, CSc.; Micka, M.; prof. Ing. Josef Jíra, CSc.
Publikováno:
2006, Engineering Mechanics 2006, Praha, Ústav teoretické a aplikované mechaniky AV ČR), p. 212-213), ISBN 80-86246-27-2
Anotace:
Migration of the implant head after hemiarthoplasty is a problem which appertain to nearly all patients. Article deals with development and utilization of parametrical FE model of the hip joint for numerical analysis of implant head migration. There are two main input parameters for the stress analysis. CE angle representing the shape of acetabulum and direction of the femoral replacement loading. To assess the influence of selected parameters on the implant migration and to enable easy comparison to patients X-Ray scanning, the analysis was carried out as axially symmetric 2D and 3D contact problem. Ultimate values of first principal stress, third principal stress and sum of displacements were used as a reference magnitude.
Typ:
Stať ve sborníku z mezinár. konf. cizojazyčně

Autoři:
prof. Ing. Ondřej Jiroušek, Ph.D.; prof. Ing. Josef Jíra, CSc.
Publikováno:
2005, GESA-Symposium 2005 Strukturanalyse, Darmstadt, VDI/VDE Gesellschschaft- und Automatisierungstechnik (GMA)), p. 463-472), ISBN 3-18-091899-3
Anotace:
A comparison between experimental investigation of an impact of human skull and finite element modelling of the free fall using Finite Element Method (FEM). The experiments consist of a series of drop tests conducted using a metal head form instrumented with an accelerometer. These tests are used to investigate protective capacity of helmets. The FE simulations use a detailed three-dimensional model of human skull, which was developed based on a series of computer tomography scans of 512x512 pixel resolution taken at 1mm distances. The FE model of human skull was filled with a simplified model of human brain.
Typ:
Stať ve sborníku z mezinár. konf.

Autoři:
prof. Ing. Ondřej Jiroušek, Ph.D.; doc. Ing. Jitka Jírová, CSc.; prof. Ing. Josef Jíra, CSc.
Publikováno:
2005, Second IASTED International Conference on Biomechanics, Benidorm, Acta Press), p. 211-214), ISBN 0-88986-534-5
Anotace:
The article reports on development of FE model of pelvic bone from a series of CT scans of high resolution. This model is used in comparative study of contact conditions between several types of acetabular components currently used in the Czech Republic. Procedure of development of the surface model as well as the generation of tetrahedral element of high quality is shortly discussed. After a thorough validation of the FE model in a sensitivity analysis using loading from a daily activity of the average individual, this model will be used to compare several different types of acetabular cups as well as to investigate possibilities of implant optimal position estimation.
Typ:
Stať ve sborníku z mezinár. konf.

Autoři:
Ing. Jan Vyčichl, Ph.D.; prof. Ing. Ondřej Jiroušek, Ph.D.; prof. Ing. Josef Jíra, CSc.
Publikováno:
2005, Engineering Mechanics 2005, Praha, Ústav termomechaniky AV ČR), p. 347-348), ISBN 80-85918-93-5
Anotace:
Práce se zabývá porovnáním vlivu geometrie různých typů acetabulárních komponent na charakter kontaktního napětí v pánevní kosti při normální chůzi. Pro tento účel byl vytvořen ze sekvence 240 CT snímků detailní MKP model pánevní kosti a tři MKP modely acetabulárních komponent. Ty odpovídají v současnosti nejužívannějším typům implantátů používaných při totální endoprotéze kyčelního kloubu.
Typ:
Stať ve sborníku z lokální konf. česky

Autoři:
prof. Ing. Josef Jíra, CSc.; prof. Ing. Ondřej Jiroušek, Ph.D.; doc. Ing. Jitka Jírová, CSc.
Publikováno:
2004, Proceedings of the Second IASTED International Conference on Biomechanics, Anaheim, Acta Press), p. 130-133), ISBN 0-88986-448-9
Anotace:
The finite element models of the inner organs (pelvis, skull, long bone) are developed from the series of computer tomography scans and include material properties based on apparent density of the tissue. A standard procedure consisting of image tresholding and determining the bone outer and inner surfaces using the marching cubes algorithm is used for reconstruction. The migration of acetabular cup into the pelvis is investigated. The FE model of the skull is used for numerical modelling of a head impact during traffic accidents. The FE models of long bones enable to predict their failure load.
Typ:
Stať ve sborníku z mezinár. konf.

Autoři:
prof. Ing. Ondřej Jiroušek, Ph.D.; doc. Ing. Jitka Jírová, CSc.; prof. Ing. Josef Jíra, CSc.
Publikováno:
2004, Experimental Stress Analysis 2004, Plzeň, Škoda Výzkum), p. 105-108), ISBN 80-239-2964-X
Anotace:
Finite element models of parts of human skeletal system are nowadays constructed on basis of data obtained from Computed Tomography or Magnetic Resonance images. Material properties of cancellous bone have been found to be strongly dependent on apparent density of the tissue. Experimental procedures used for evaluation of mechanical properties of cancellous bone using small samples of cylindrical shape will be described and relationship between the apparent density and Young's modulus of elasticity as well as ultimate strength are proposed. Compressive and tensile specimens are used while for the strains are measured using an optical method utilizing CCD camera of high resolution.
Typ:
Stať ve sborníku z mezinár. konf. cizojazyčně

Autoři:
prof. Ing. Josef Jíra, CSc.; doc. Ing. Jitka Jírová, CSc.; Bouška, P.; Vokáč, M.
Publikováno:
2004, Experimental Methods and Measurement Techniques in Monitoring and Supervising Engineering Structures and Thein Numerical Analysis, Praha, České vysoké učení technické v Praze, Fakulta dopravní), p. 35-38), ISBN 80-86246-20-5
Anotace:
Confluence of the rivers Berounka and Sázava and outflows from the Vltava dam cascade caused the flow in the lower part of the river Vltava in Prague. The Vltava culminated in Prague on 14 August with a flow of 5160 m3.s-1; this corresponds to a period of recurrence of 500 years. The extension of floods in the Vltava valley in Prague caused penetration of water into underground spaces of the Metro and water flooded 19 of 53 underground stations. Looseness of cable bushings through pressure interfaces and non-closure of some pressure interfaces were the most important cause of spreading of water in underground spaces. After the floods of August 2002 the accredited laboratory CTU in Prague, Klokner Institute designed a methodology of experiments and testing system and performed tests on reliability of cable bushings and on material properties of the U 5000. Results of experiments lead to the recommendation to replace all the existing cable bushing in Prague Metro.
Typ:
Stať ve sborníku z mezinár. konf. cizojazyčně

Autoři:
prof. Ing. Ondřej Jiroušek, Ph.D.; doc. Ing. Jitka Jírová, CSc.; prof. Ing. Josef Jíra, CSc.; Máca, J.
Publikováno:
2004, Seventh International Conference on Computational Structures Technology, Lisboa, Technical University of Lisbon), p. 221-222), ISBN 0-948749-93-8
Anotace:
The article reports on development of finite element models of parts of human musculosceletal system based on data obtained from Computer Tomography and Magnetic Resonance Imaging. Methods used for automatic tissue segmentation, contour extraction and surface detection are described in the paper. Methods for surface mesh simplification (mesh decimation) as well as topology optimization are discussed, too. Spatial discretization of the three-dimensional space are based on Delaunay tetrahedralization followed by shape optimization. The shape optimization is based on Laplace smoothing and local mesh improvements, such as edge swap or edge split procedures.
Typ:
Stať ve sborníku z mezinár. konf.

Autoři:
Micka, M.; prof. Ing. Josef Jíra, CSc.
Publikováno:
2004, Structural Integrity of Pressure Pipelines, Praha, Transgas a.s.), p. 137-164), ISBN 80-86616-03-7
Anotace:
Numerical and experimental analysis of the influence of geometrical imperfections on the stress state in the pipeline wall. The imperfections are in the form of the non-cicularity (ovality) of the cross-section, corrosion pits, weld or in the form of the denting of the wall.
Typ:
Kapitola v jiné knize cizojazyčně

Autoři:
prof. Ing. Josef Jíra, CSc.; prof. Ing. Ondřej Jiroušek, Ph.D.; doc. Ing. Jitka Jírová, CSc.; Micka, M.
Publikováno:
2004, Proceedings of the Seventh International Conference on Computational Structures Technology, Stirling, Civil-Comp Press Ltd), p. 10101-10112), ISBN 0-948749-94-6
Anotace:
The paper deals with loosening and migration of cementless acetabular cups into the pelvis that belongs to the most serious therapeutic complications arising sometimes several months to years after operation. The aseptic loosening of the cup is mainly influenced by two mechanical factors: ultrahigh molecular weight (UHMW) polyethylene wear and initial cancellous bone stresses. The geometry of the acetabular cups was designed directly in ANSYS and imported to the database file containing the geometry of the pelvic bone generated from the CT scans. Research was concentrated on the analysis of contact stresses and strains.
Typ:
Stať ve sborníku z mezinár. konf.

Autoři:
Micka, M.; prof. Ing. Josef Jíra, CSc.
Publikováno:
2003, Design, Inspection, Maintenance and Operation of Cylindrical Steel Tanks and Pipelines, Brno, European Convetion for Constructional Steelwork (ECCS)), p. 329-335), ISBN 80-239-0405-1
Anotace:
In their Surroundings the Local Defects of Pipelines Influence Stress and Strain State in the Pipe Wall. They are Significant Concentrators of the Stress and they Have Fundamental Effect on Load-Carrying Capacity and Service Life of the Pipe. The Field of the Stress and Strain in the Surroundings of Defects May be Detected Experimentally or it May be Used Numerical Modelling by FEM. In this Paper are Presented Results of the Numerical Modelling of the Stress State in the Pipe Wall Due to Ovality of the Pipe Also in the Surroundings of Corrosion Pits and Further at the Place of Local Inward Denting (Buckling) of the Pipe Wall.
Typ:
Stať ve sborníku z mezinár. konf. cizojazyčně

Autoři:
doc. Ing. Jitka Jírová, CSc.; Micka, M.; prof. Ing. Josef Jíra, CSc.; Sosna, A.; Pokorný, D.
Publikováno:
2003, Acta of Bioengineering and Biomechanics, 5 (2), p. 218-223), ISSN 1509-409X
Anotace:
Loosening and migration of acetabular cup into the pelvis belongs to the most serious therapeutic complications arising sometimes several months to years after operation. In the operation records of the Orthopaedic Clinic of the 1 st Faculty of Medicine of the Charles University in Prague the implants of conical acetabular cups, which migrated across lamina in the course of several years, were retrieved and evaluated
Typ:
Článek v odborném recenzovaném periodiku

Autoři:
Sumec, J.; Sokol, M.; prof. Ing. Josef Jíra, CSc.
Publikováno:
2003, Biomechanics 2003, Rhodes, IASTED), p. 109-114), ISBN 0-88986-359-8
Anotace:
The paper deals with biomechanical modeling of the human lumbar spine. The study of the stress-strain distributions, deflections and stiffness of segments L1-L5 under statical loads are presented. The technique of the biomechanical modeling is described and 3D FEM of spine segment is used
Typ:
Stať ve sborníku z mezinár. konf.

Autoři:
prof. Ing. Josef Jíra, CSc.; prof. Ing. Ondřej Jiroušek, Ph.D.; doc. Ing. Jitka Jírová, CSc.
Publikováno:
2003, Engineering Mechanics 2003, Praha, AV ČR, Ústav teoretické a aplikované mechaniky), p. 1219-1222), ISBN 80-86246-18-3
Anotace:
Metodika tvorby výpočtového modelu lidské lebky z dat získaných z počítačové tomografie, který bude použit pro výpočet napjatosti při extrémním zatížení
Typ:
Stať ve sborníku z mezinár. konf. česky

Autoři:
doc. Ing. Jitka Jírová, CSc.; Micka, M.; prof. Ing. Josef Jíra, CSc.; Sosna, A.; Pokorný, D.
Publikováno:
2003, Biomechanics 2003, Rhodes, IASTED), p. 1-6), ISBN 0-88986-359-8
Anotace:
By using computational model:pelvic bone-acetabular cup-endoprosthesis head we considered the geometry of acetabular cups (spherical and conical), fixation (cemented, noncemented, by screws) and interaction with bone tissue. We concentrated on the research of contact stresses and strains
Typ:
Stať ve sborníku z mezinár. konf.

Autoři:
prof. Ing. Ondřej Jiroušek, Ph.D.; doc. Ing. Jitka Jírová, CSc.; prof. Ing. Josef Jíra, CSc.
Publikováno:
2003, Acta of Bioengineering and Biomechanics, 5 (1), p. 214-217), ISSN 1509-409X
Anotace:
The paper reports on development process of finite element models of human skull used in investigation of extreme stress state during a traffic accident. The procedures used in the development of the geometry of the skull from the series of computer tomography scans are shortly described and simplified FE-models presented. Results from a simple FE analysis using several models of different resolution are compared to estimate optimal number of degrees of freedom and to develop a numerically optimal model of human skull. The finite element models will be mainly used for evaluation of parameters that are necessary for protective helmet design.
Typ:
Článek v odborném recenzovaném periodiku

Autoři:
doc. Ing. Jitka Jírová, CSc.; Micka, M.; prof. Ing. Josef Jíra, CSc.; Sosna, A.; Pokorný, D.
Publikováno:
2003, Engineering Mechanics 2003, Praha, AV ČR, Ústav teoretické a aplikované mechaniky), p. 1204-1214), ISBN 80-86246-18-3
Anotace:
Parametrické studie migrace acetabulární jamky pomocí odvozeného výpočtového modelu v programu ANSYS. Nalezeny místa s koncentracemi napětí na kontaktu jamka-pínevní kost
Typ:
Stať ve sborníku z mezinár. konf. česky

Autoři:
prof. Ing. Josef Jíra, CSc.; Jírová, J.; Ing. Marek Kalika, Ph.D.; Klečková, J.
Publikováno:
2003, Doprava a telekomunikace pro 3. tisíciletí, Praha, České vysoké učení technické v Praze, Fakulta dopravní), p. 67-70), ISBN 80-01-02741-4
Anotace:
Z řady počítačových tomografických snímků byl sestaven model konečných prvků lidské lebky. Tento zjednodušený model z konečných prvků se používá pro analýzu dislokací a stavů namáhání lebeční kosti účinkem koncentrovaného tlaku nebo nestejnoměrně působícího tlaku.
Typ:
Stať ve sborníku z fakultní konference česky

Autoři:
prof. Ing. Josef Jíra, CSc.; Kulčák, L.; Ing. Jana Kaliková, Ph.D.; Jalovecký, M.
Publikováno:
2003, ČVUT v evropském výzkumném a vzdělávacím prostoru, Praha, České vysoké učení technické v Praze), p. 11-14), ISBN 80-01-02909-3
Anotace:
Systémová vysokoškolská příprava profesionálních pilotů a dalších specialistů pro provoz civilního letectví v bakalářské (Letecká doprava, Profesionální pilot), magisterské(Provoz a řízení letecké dopravy) i doktorské formě studia na Fakultě dopravní ČVUT v Praze
Typ:
Stať ve sborníku z lokální konf. česky

Autoři:
prof. Ing. Josef Jíra, CSc.; Kulčák, L.; Ing. Jana Kaliková, Ph.D.; Jalovecký, M.
Publikováno:
2003, ČVUT v evropském výzkumném a vzdělávacím prostoru, Praha, České vysoké učení technické v Praze), p. 50-55), ISBN 80-01-02909-3
Anotace:
Tato stať se zabývá rozvojem a obsahem leteckých studijních oborů na doprvní fakultě ČVUT.
Typ:
Stať ve sborníku z lokální konf. česky

Autoři:
doc. Ing. Jitka Jírová, CSc.; Micka, M.; prof. Ing. Josef Jíra, CSc.; Sosna, A.; Pokorný, D.
Publikováno:
2003, Doprava a telekomunikace pro 3. tisíciletí, Praha, České vysoké učení technické v Praze, Fakulta dopravní), p. 75-80), ISBN 80-01-02741-4
Anotace:
Během migrace kónické acetabulární jamky do malé pánve dochází na kontaktu jamky a kosti k přetížení a mikropohybům. Pomocí výpočtového modelu byly analyzovány příčiny těchto jevů a byla vyšetřována vzniklá napjatost
Typ:
Stať ve sborníku z fakultní konference česky

Autoři:
Kult, J.; prof. Ing. Josef Jíra, CSc.
Publikováno:
2002, Acta of Bioengineering and Biomechanics. Proceedings of the 13th Conference of European Society of Biomechanics, Wroclaw, Oficyna Wydawnicza Politechniki Wroclawskiej), p. 331-332), ISBN 83-7085-639-X
Anotace:
The Article Deals With Two Biomechanical Problems of Human Fingers.The First Problem is a Numerical Analysis of the Swanson's PIP Joint Implant Based on 3D FE Model. Experimental Measurement of Stress-Strain Was Done to Learn 3D FE Model. Experimental Measurement of Stress-Strain Was Done to Learn Detailed Material Properties. The Second Problem is Modelling of the Finger Joint Flexion Contractures Treatment. Two Treatment Methods (Compression and Traction) Are Compared Using the Methods of Numerical Modelling.
Typ:
Vyzvaná předn. uvedená ve sborníku z prestižní konf.

Autoři:
prof. Ing. Ondřej Jiroušek, Ph.D.; prof. Ing. Josef Jíra, CSc.; doc. Ing. Jitka Jírová, CSc.; Kult, J.
Publikováno:
2002, 10. ANSYS User's Meeting, Brno, SVS FEM), p. 1-6), ISBN 80-238-9394-7
Anotace:
Study of the Possible Mechanical Reasons For the Acetabular Cup Migration Which is one of the Main Causes for Total Hip Replacement (THR) Instability and Leads to an Early Re-Operation. The First Possible Reason For this Phenomena can be Explained by the Wear Volume of the Ultra High Molecular Weight Polyethylene (UHWMPE) Acetabular Cup. The Second Reason For the Acetabular Cup Migration is Excessive Cancellous Bone Stress. Both Influences Are Studied For Several Types of Prosthesis Using a Detailed FE-Model of the Pelvic Bone Constructed Using Data Obtained From Computer Tomography (CT)Scans.
Typ:
Vyzvaná předn. uvedená ve sborníku z mezinárodní konf. cizojazyčně

Autoři:
Jiroušek, O.; Máca, J.; prof. Ing. Josef Jíra, CSc.
Publikováno:
2001, Acta of Bioengineering and Biomechanics, 3 (1), p. 59-73), ISSN 1509-409X
Typ:
Článek v odborném recenzovaném periodiku

Autoři:
prof. Ing. Ondřej Jiroušek, Ph.D.; Máca, J.; prof. Ing. Josef Jíra, CSc.
Publikováno:
2001, Acta of Bioengineering and Biomechanics, 3 (1), p. 59-73), ISSN 1509-409X
Anotace:
For the Needs of Forensic Medicine the Knowledge of Mechanical Behavior of the Whole Bones is of High Importance. Mechanical Properties, Such as Young's Modulus of Elasticity and Poisson's Ratio Have Already Been Measured Using Small Pieces of Bones, Which is For the Needs of Forensic Medicine Useless. Moreover, these Characteristics Are Age-Dependent and Therefore Usually Considered as the Average Comparative Values. The Aim of the Work is to Describe the Possible Relationship Between the Mechanical Fracture of the Bone in Relation to Age and Sex For Different Bones and Types of Mechanical Loading. For the Assessment we use Both Mechanical Testing in Vitro and Mathematical Modeling.
Typ:
Článek v odborném recenzovaném periodiku

Autoři:
prof. Ing. Josef Jíra, CSc.; Jírová, J.; Micka, M.
Publikováno:
2001, GESA - Symposium 2001 "Sicherheit und Zuverlässigkeit Durch Experimentelle Struktur-und Beanspruchungsanalyse", Düsseldorf, VDI Verlag), p. 197-202), ISBN 3-18-091599-4
Anotace:
The Study of Interaction of Various Types of Acetabular Cups With Pelvic Bone Using 2-D Finite Element Models by Applying ANSYS programme. Investigating the Influence of Thread Slope of an Acetabular Cup on Stress State Spongy Bone by Means of 3-D FE Model. Experimental and Numerical Research of the Cementless Acetabular Cup-Beznoska Type. The Purposeof the Experimental Research Was to Measure Strains at the Selected Points of the Outer Surface. Using Computational Model We Cculd Analyse Not Only the Stress State Generated by Concentrated Load But Alsc by Uniformly Distributed Load Which Would be Very Difficult Applied During the Experiment.
Typ:
Stať ve sborníku z mezinár. konf.

Autoři:
prof. Ing. Josef Jíra, CSc.; Jírová, J.; Micka, M.
Publikováno:
2001, Experimental Stress Analysis 2001, Praha, Institut teoretické a aplikované mechaniky), p. 139-144), ISBN 80-86246-09-4
Anotace:
The Local Effects of Notches in the Form of Long Cuttings on the Development of Deformations in the Wall of a Spiral Welded Pipeline Were Modelled in the Course of the Hydraulic Strength Tests of hp Gas Pipelines. The Influence of Notches and the Spiral Weld on the Pipe State of Stress Were Investigated Experimentally Together With the Numerical Simulation of the Behaviour of Pipes With Defects by Means of the Application of the ANSYS programme. The Research Has Demonstrated that if the Material is Not too Damaged by Fatigi and is not Considerably Heterogeneous and Weakened by Microcracks in the Structure, it is Possible to Accept Very Deep Weakening of the Pipe Wall.
Typ:
Stať ve sborníku z mezinár. konf. cizojazyčně

Autoři:
prof. Ing. Ondřej Jiroušek, Ph.D.; prof. Ing. Josef Jíra, CSc.; Jírová, J.; Kult, J.
Publikováno:
2001, 9th ANSYS Users Meeting, Brno, SVS FEM), p. 1-6)
Anotace:
The contribution Reports on Problems Solved by a Laboratory of Biomechanics Team Using Numerical FEM System Ansys. The First Problem is a Complex Analysis of Swanson's Prosthesis of Interphalangeal Joint and its Interaction With Phalangeal and Metacarpal Bone. Nonlinear Hyperelastic Material Model and Contact Elements Were Used. The Second Analysis is From the Application of Biomechanics in the Field of Forensic Medicine, Experimental and Numerical Approach to Determination of Ultimate Strength of Bones is Shortly Described. The Material of the Bone is Considered Nonlinearly Elastic With Varying Material Properties Based on Data Obtained From Computer Tomography Scans.
Typ:
Stať ve sborníku z mezinár. konf. cizojazyčně

Autoři:
prof. Ing. Josef Jíra, CSc.; Micka, M.
Publikováno:
2000, International Conference Engineering Mechanics 2000, Praha, AV ČR, Ústav teoretické a aplikované mechaniky), p. 59-64), ISBN 80-86246-04-3
Typ:
Stať ve sborníku z mezinár. konf. cizojazyčně

Autoři:
Jírová, J.; prof. Ing. Josef Jíra, CSc.; Micka, M.
Publikováno:
2000, International Conference Engineering Mechanics 2000, Praha, AV ČR, Ústav teoretické a aplikované mechaniky), p. 3-8), ISBN 80-86246-04-3
Typ:
Stať ve sborníku z mezinár. konf. cizojazyčně

Autoři:
Jirava, P.; Svoboda, V.; prof. Ing. Josef Jíra, CSc.
Publikováno:
2000, Proceedings of Workshop 2000, Praha, České vysoké učení technické v Praze), p. 675-675), ISBN 80-01-02229-3
Typ:
Stať ve sborníku Workshop ČVUT

Autoři:
Micka, M.; prof. Ing. Josef Jíra, CSc.
Publikováno:
2000, 8. ANSYS Users Meeting, Brno, SVS FEM), p. 1-1-6)
Typ:
Stať ve sborníku z mezinár. konf. česky

Autoři:
Jírová, J.; prof. Ing. Josef Jíra, CSc.; Micka, M.
Publikováno:
2000, Biomechanics of Man 2000, Olomouc, Univerzita Palackého), p. 64-67), ISBN 80-244-0193-2
Typ:
Stať ve sborníku z mezinár. konf. cizojazyčně

Autoři:
Gajdoš, L.; prof. Ing. Josef Jíra, CSc.; Micka, M.
Publikováno:
2000, ISBN 80-01-02143-2
Typ:
Vědecká kniha česky

Autoři:
prof. Ing. Josef Jíra, CSc.
Publikováno:
2000, Proceedings of Workshop 2000, Praha, České vysoké učení technické v Praze), p. 699-699), ISBN 80-01-02229-3
Typ:
Stať ve sborníku Workshop ČVUT

Autoři:
Micka, M.; prof. Ing. Josef Jíra, CSc.
Publikováno:
2000, International Conference Engineering Mechanics 2000, Praha, AV ČR, Ústav teoretické a aplikované mechaniky), p. 65-70), ISBN 80-86246-04-3
Typ:
Stať ve sborníku z mezinár. konf. cizojazyčně

Autoři:
prof. Ing. Josef Jíra, CSc.
Publikováno:
1999, Significance of Hybrid Method for Assessment of Reliability and Durability in Engineering Sciences, Praha, AV ČR, Ústav teoretické a aplikované mechaniky), p. 29-32), ISBN 80-86246-02-7
Typ:
Stať ve sborníku z mezinár. konf. cizojazyčně

Autoři:
prof. Ing. Josef Jíra, CSc.
Publikováno:
1999, SKELET 99, Praha, Univerzita Karlova, Fakulta tělesné výchovy a sportu), p. 19-20), ISBN 80-902147-8-9
Typ:
Stať ve sborníku z mezinár. konf. cizojazyčně

Autoři:
prof. Ing. Josef Jíra, CSc.; Jiroušek, O.; Máca, J.
Publikováno:
1999, First International Conference on Advanced Engineering Design, Praha, České vysoké učení technické v Praze), p. 95-102), ISBN 80-01-02055-X
Typ:
Stať ve sborníku z mezinár. konf. cizojazyčně

Autoři:
Jírová, J.; Micka, M.; prof. Ing. Josef Jíra, CSc.
Publikováno:
1999, 7th ANSYS Users Meeting, Brno, SVS FEM), p. 161-166)
Typ:
Stať ve sborníku z mezinár. konf. cizojazyčně

Autoři:
prof. Ing. Josef Jíra, CSc.; Jírová, J.; Micka, M.
Publikováno:
1999, 7th ANSYS Users Meeting, Brno, SVS FEM), p. 141-146)
Typ:
Stať ve sborníku z mezinár. konf. cizojazyčně

Autoři:
prof. Ing. Josef Jíra, CSc.; Jírová, J.; Micka, M.
Publikováno:
1999, 37th International Conference on Experimental Stress Analysis, Ostrava, VŠB-TUO), p. 75-78), ISBN 80-7078-672-8
Typ:
Stať ve sborníku z mezinár. konf. cizojazyčně

Autoři:
Jírová, J.; Micka, M.; prof. Ing. Josef Jíra, CSc.
Publikováno:
1999, Significance of Hybrid Method for Assessment of Reliability and Durability in Engineering Sciences, Praha, AV ČR, Ústav teoretické a aplikované mechaniky), p. 37-40), ISBN 80-86246-02-7
Typ:
Stať ve sborníku z mezinár. konf. cizojazyčně

Autoři:
prof. Ing. Josef Jíra, CSc.; Jírová, J.; Micka, M.
Publikováno:
1999, Acta of Bioengineering and Biomechanics, 1 (2), p. 79-85), ISSN 1509-409X
Typ:
Článek v odborném recenzovaném periodiku

Autoři:
prof. Ing. Josef Jíra, CSc.; Jírová, J.; Micka, M.
Publikováno:
1998, Experimental Mechanics - 2. Advances in Design, Testing and Analysis, Rotterdam, Centrum A. A. Balkema), p. 951-954), ISBN 90-5809-014-0
Typ:
Stať ve sborníku z mezinár. konf.

Autoři:
prof. Ing. Josef Jíra, CSc.; Jírová, J.
Publikováno:
1998, Workshop 98, Praha, České vysoké učení technické v Praze), p. 853-854)
Typ:
Stať ve sborníku Workshop ČVUT

Autoři:
prof. Ing. Josef Jíra, CSc.; Jírová, J.; Micka, M.
Publikováno:
1998, Computer Methods in Biomechanics & Biomedical Engineering - 2, Amsterdam, Gordon and Breach Science Publishers), p. 305-312), ISBN 90-5699-206-6
Typ:
Stať ve sborníku z mezinár. konf.

Autoři:
prof. Ing. Josef Jíra, CSc.; Jírová, J.
Publikováno:
1998, Computer Methods in Biomechanics & Biomedical Engineering - 2, Amsterdam, Gordon and Breach Science Publishers), p. 431-438), ISBN 90-5699-206-6
Typ:
Stať ve sborníku z mezinár. konf.

Autoři:
prof. Ing. Josef Jíra, CSc.; Jírová, J.; Micka, M.
Publikováno:
1998, Abstracts of Third World Congress of Biomechanics, Osaka, WCB 98 Congress Office), p. 520-520)
Typ:
Stať ve sborníku z lokální konf.

Autoři:
prof. Ing. Josef Jíra, CSc.
Publikováno:
1998, Spolehlivost a diagnostika, Pardubice, Univerzita Pardubice), p. 37-38), ISBN 80-7194-163-8
Typ:
Stať ve sborníku z lokální konf. česky

Autoři:
prof. Ing. Josef Jíra, CSc.; Jírová, J.; Kolář, F.
Publikováno:
1998, Experimental Mechanics - 2. Advances in Design, Testing and Analysis, Rotterdam, Centrum A. A. Balkema), p. 835-838), ISBN 90-5809-014-0
Typ:
Stať ve sborníku z mezinár. konf.

Autoři:
prof. Ing. Josef Jíra, CSc.; Micka, M.
Publikováno:
1998, Workshop 98, Praha, České vysoké učení technické v Praze), p. 1085-1086)
Typ:
Stať ve sborníku Workshop ČVUT

Autoři:
prof. Ing. Josef Jíra, CSc.; Micka, M.; Kult, J.
Publikováno:
1998, Engineering Mechanics 98, Praha, AV ČR, Ústav termomechaniky), p. 309-314), ISBN 80-85918-40-4
Typ:
Stať ve sborníku z mezinár. konf. česky