Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 169 for “"Tendons"”.
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Viscoelastic Models for Ligaments and Tendons
Collagenous tissues such as ligaments and tendons are viscoelastic materials. They exhibit a slow continuous increase in strain over time, or creep, when subjected to a constant stress and a slow continuous decrease in stress over time, or stress relaxation, when subjected to a constant strain. …
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Capacity of concrete beams prestressed with BFRP tendons
Steinsteypt mannvirki eru yfirleitt járnbent vegna lágs togstyrks steypunnar. Járnbending hentar að mörgu leyti vel en hefur þann ókost að tærast sé hún ekki varin. Þetta á einkum við þar sem raki, selta eða önnur efnaáraun er mikil. Við slíkar aðstæður geta önnur efni verið heppilegri sem bending …
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Strengthening prestressed beams using parafil ropes as external tendons
… Plastics (FRP) can be used instead of steel tendons. Within the different types of FRP, Parafil rope was established to be well suited for prestressing system, combining the benefits of light-weight, high strength, easy handling and efficient anchorage system. Thirteen prestressed beams,one …
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Shear wave ultrasound elastography of the shoulder joint tendons
A dissertation submitted to the Faculty of Health Sciences in full compliance for the requirement for the Master’s Degree in Technology: Radiography at Durban University of Technology, 2020.
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Nonlinear Viscoelastic Behavior of Ligaments and Tendons: Models and Experiments
Ligaments and tendons are rope-like structures in our body that possess time- and history-dependent material properties. Despite the many advances made in experimental and theoretical biomechanics, the material properties of these biological structures are still not fully characterized. This …
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Seismic Performance of Unreinforced Masonry Walls Retrofitted with Post-tensioning Tendons
… of a single post-tensioning (PT) tendon. Tendons are spaced at a regular interval and anchored at the top of the wall parapet and at the lower diaphragm level. Tensioning of the tendons imparts a compressive stress to the wall that effectively increases the wall cracking moment strength, …
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Identifier et traiter la tendinopathie modérée des tendons de queue de rat ex vivo
… de charge mécanique a été caractérisé. Les tendons de queue de rat (TQRs) ont été cultivés en absence de charge mécanique pendant 0 (témoin), 2, 4, 6 ou 10 jours. Les TQRs ont été soumis à des tests de traction ainsi qu'à des analyses histogiques, biochimiques et de viabilité à la fin de …
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A study of the deflection and strength of partially prestressed concrete beams with unbonded tendons
Fifteen beams with-unbonded tendons consisting of I and rectangular sections with different amounts of prestressed and non-prestressed reinforcement, were tested under short-term and sustained loading and a combination of sustained loading with intermittent short-term cyclic loading(combined …
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Title: Comparative study on the anatomy and composition between human tendons and byssal threads of the Bivalve Mytilus galloprovincialis
Αυτή η μελέτη περιγράφει και εξηγεί τη σύνδεση (αν υπάρχει) ανάμεσα σε δύο ανατομικά παζλ τα οποία πιθανόν να μοιράζονται τις ίδιες λειτουργίες και βιολογία. Αυτή ανάμεσα σε ανθρώπινους τένοντες και τους βύσσους συγκεκριμένου δίθυρου. Η μελέτη προσπαθεί να καταλάβει την εσωτερική αρχιτεκτονική …
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The Connection of Composition, Structure, and Dynamic Processes to Tendon Mechanics: Structure-Function Relationships in Collagen V Deficient Tendons
Tendons are able to withstand the broad range of stresses and strains via their finely tuned composition and structure. In addition, tendons undergo a coordinated set of dynamic responses, specifically collagen uncrimping, re-alignment, sliding and deformation, within the matrix. To date, a …
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Zur Krafteinleitung bei externer Vorspannung
… "Transmission of Prestressing Forces of External Tendons" covers the anchorage and deviation of external prestressing tendons in hollow-box-girder bridges. At first, the behaviour of different anchorage constructions was derived from the analysis of three full-scale tests. Numerical simulations …
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Spannbetonfertigteile mit teilweiser Vorspannung aus hochfestem Beton
… increase in bond strength of the pretensioning tendons. In this paper the investigation results of the bond properties of prestressing steel in the transmission zone of prestress, in the area of cracks and in the anchorage zone are presented. In order to investigate the behaviour of prestressed …
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Focused Ultrasound Methods for the treatment of Tendon Injuries
… efficacy and long rehabilitation periods. Tendons possess an incomplete healing response which is reparative (scar-mediated) rather than regenerative, resulting in a 'healed' tissue that is mechanically inferior to the native tendon. While it is widely accepted that mechanical-loading based …
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Testing of the Transverse Tendon Behavior in the Varina-Enon Bridge
… to investigate the consequences of transverse tendons rupture. In addition, to determine the behavior of tendons with grouted duct and smoot duct when a stand broke. Also, the results of this project identify if the bridge can perform adequately with no repair or if these failures would develop …
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Characterizing the Effects of Histotripsy for Osteosarcoma Treatment on Tendon Structure and Function
… structures, which include tumor-adjacent tendons, as tendons are important musculoskeletal structures that facilitate joint movement. The objective of this study is to evaluate the effects of histotripsy on tendon structure and function via biomechanical testing, ultrasound (US) image …
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The Effect of Fascicular Elastin on the Mechanical and Functional Properties of Healthy, Damaged, and Healing Tendon
… knockout Prx1Cre+;Elnfl/fl was developed. Tendons from Prx1Cre+;Elnfl/fl mice were examined and found to share similarities with previous models, but with increased sensitivity to previously unknown elastin contributions. Results differed by tendon type, with linear modulus increases in …
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Development of 2D Ultrasound Tracking Software and Hardware to Monitor Multiple Flexor Tendon Displacement for Applications Toward Hand Prostheses
… to detect and track the displacement of flexor tendons within the human arm, using a non-invasive, ultrasound-based, speckle tracking technique. By tracking the tendons in the arm, it provides a way to monitor a person’s intention to move their hands and fingers. This has application to hand …
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