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1
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Applied Mechanics and Engineering
EN One fundamental property of living tissues is their ability of adaptation to environment because cells are always exposed to mechanical stresses related to environment or to movement (i.e. external pressure, blood flow pressure related to walking, ...). Today it's generally accepted that these mecha[...]
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63%
Zeszyty Naukowe. Mechanika / Politechnika Opolska
2001 z. 68 151-158
PL W referacie przedstawiono projekty i badania prowadzone w Zakładzie Geometrii Wykreślnej i Rysunku Technicznego PŁ dotyczące zagadnień biomechaniki.
EN The paper presents the biomechanical projects and research work carried out in the Division of Descriptive Geometry and Engineering Drawing of the Technical University of Lodz.
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Zeszyty Naukowe Politechniki Białostockiej. Budowa i Eksploatacja Maszyn
2003 Z. 11 257-264
PL Dzięki zastosowaniu nowoczesnych technik cyfrowych - mikrokontrolerów - możliwe było opracowanie, w oparciu o metodę płaszczyzny fazowej, urządzenia PDA, służącego do szybkiej oceny stanu aparatu ruchu człowieka.
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Archives of Mechanics
EN In an earlier paper the author expressed the evolution equations of classical continuum damage mechanics in terms of unit dissipated power and proposed an extension to biological materials in vivo, adding a term describing the recovery. In the present paper an analogy with evolution of the coronary [...]
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Prace Naukowe Politechniki Warszawskiej. Mechanika
2007 z. 217 145-150
EN Acoustic emission signals (AE) were recorded during the bending test of rat femora. Bones from two adult age groups were tested: five month (A-5) and 12 months old (A-12). Bones were loaded to fracture in three-point bending. Energy of AE, number of bursts and average energy for one burst were ana[...]
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Prace Naukowe Instytutu Konstrukcji i Eksploatacji Maszyn Politechniki Wrocławskiej. Konferencje
PL W pracy przedstawiono jedną z metod leczenia choroby niedokrwiennej serca (choroby wieńcowej). Obok operacji typu by-pass jest to najskuteczniejsza forma zapobiegania zawałowi serca. Metoda ta polega na wszczepieniu w zwężone naczynie wieńcowe jednego lub kilku implantów wewnątrznaczyniowych zwanych[...]
EN The paper presented one of the methods of treatment ischaemic heart disease. The method is based on imaculation within bad artery vessel one or more intravascular implants (stents) keeping permeability of vessel. Novel "rotating" and "locking" mechanisms are being incorporated into stent designs aff[...]
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Prace Instytutu Podstawowych Problemów Techniki PAN
2007 nr 6 3-264
PL To ze kości wciąż dostosowują w ciągu życia organizmu swą wewnętrzną strukturę i zewnętrzny kształt do obciążeń mechanicznych jest wiadomo od dawna a. systematyczne badania w celu wyjaśnienia tego zjawiska prowadzone są juz od ponad wieku. Ponieważ podstawową i najważniejszą rolą układu kostnego są [...]
EN It has been observed over hundred years ago that bones adapt their shape and internal structure according to mechanical demands and loading conditions. Since one of the most important roles of skeletal system is its mechanical function this observation has important implications both in the theoreti[...]
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Acta of Bioengineering and Biomechanics
EN Using a sagittal model of human body developed in part I, the present paper deals with computational algorithms related to the inverse simulation problem – the determination of driving muscle forces in lower limbs using the measured motion characteristics as input data. The control problem is associ[...]
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Computer Assisted Mechanics and Engineering Sciences
EN In the paper the structure optimization system based on the surface remodeling is presented. The base of algorithm formulation was the trabecular bone surface remodeling phenomenon leading to optimization of the trabecular net in the bone as well as the design with optimal stiffness principle. The c[...]
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Acta of Bioengineering and Biomechanics
2006 Vol. 8, nr 2 111-118
EN Step is a common physical activity which can have positive or negative influence on human movement system. The aim of this study was to test the influence of step height and music tempo on the loads affecting human movement during step exercise. Loads were compared with these typical of human locomo[...]
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Acta of Bioengineering and Biomechanics
EN Any generally accepted standard of modelling an eyeball’s mounting system still does not exist. The comparison of the results of two extremely different mounting models, i.e., fixed and simply supported, permits us to estimate the part of the kinematic boundary conditions in the solutions of the mod[...]
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Acta of Bioengineering and Biomechanics
EN The paper presents a human biomechanical model aimed at determining muscle forces during planar movements such as standing long jumps, vertical jumps and jumps down from a height. Only the hip, knee and ankle joints are modelled as directly enforced by the muscle forces applied to their tendon attac[...]
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Acta of Bioengineering and Biomechanics
2006 Vol. 8, nr 2 103-110
EN The aim of the study was to compare the changes in tremor after two exercises. Twelve male kayakers and seventeen male PE students participated in the study. The kayakers performed a specific kayak ergometer test. The students performed bilateral elbow flexion/extension with a barbell. Tremor was me[...]
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Acta of Bioengineering and Biomechanics
2006 Vol. 8, nr 2 135-142
EN The hip joint alloplasty is one of the surgical treatments often performed in clinics and in traumaorthopaedic departments of hospitals. The popular method for connecting pelvis and femoral component with a bone during alloplasty is the use of a thin surgical cement layer. During a surgery, thermal [...]
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Acta of Bioengineering and Biomechanics
EN The aim of this paper is to introduce our AVIImage software for the analysis of movement technique recorded by means of video registration with RGB 24 bits depth. AVIImage software allows manual or automatic recognition of markers characterising the object examined, analysis of basic parameters in 2[...]
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Acta of Bioengineering and Biomechanics
2006 Vol. 8, nr 2 127-133
EN The lumbar spine region is most often affected by disorders. These disorders lead to instability in the motion segments. Many surgical procedures have been undertaken to reduce instability and restore the function of the spine. Spinal fusion is most commonly used to stabilise unstable motion segment[...]
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Applied Mechanics and Engineering
1999 Vol. 4, no 2 237-253
EN The thermodynamical model, derivation of the field equations, proper boundary conditions, analytical and numerical solutions to an elasto-viscoelasto-elastic problem in a layered structure have been presented. Three different kinds of loading have been applied to the structure. A space-time analysis[...]
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Acta of Bioengineering and Biomechanics
EN The aim of the paper is to draw attention to exponential viscoelastic creep measures for the description of viscoelastic deformation of the bone tissue. The proposed two-parametric exponential time function provides a real modelling of medium-time deformation processes and brings advantage in inter[...]
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Engineering Transactions
EN Possibility of using non-metallic materials in biomedical applications was considered. The attention was focused mainly on polymer materials and both the carbon-carbon and carbon-reinforced polymer composites, their mechanical and biological properties. The obtained results indicate that some of the[...]
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Zeszyty Naukowe Politechniki Białostockiej. Budowa i Eksploatacja Maszyn
2002 Z. 10 61-66
PL Przedmiotem pracy jest zaprojektowanie stacji diagnostycznej, która stanie się dostępna dla wielu ośrodków klinicznych w kraju i za granicą. Jej podstawowymi elementami są: elektrogoniometr, mata chodu oraz pakiet programów do filtrowania sygnałów biomechanicznych, szacowania chwilowej wartości moc[...]
EN There is presented a new diagnostic station to measuring kinematic data of human gait in this paper. The station is building from electrogoniometer, gaitrate, and software to filtering biomechanical data, estimating power developed by muscle joints, identification human gait model. The advantages of[...]
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