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Dissertations / Theses on the topic 'Ankle – Mechanical properties'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 January 2023

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1

Dewan, Curt. "Biomechanics of the foot and ankle during ice hockey skating." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=81326.

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This study describes the biomechanics of the foot and ankle during the transitional and steady state skating strides using kinematic, kinetic, and myoelectric measures. A data set for five collegiate hockey players was completed (mean +/- SD: age = 21.8 +/- 1.9 years, height = 1.81 +/- 0.05 m, mass = 83.3 +/- 8.0 kg). Three acceleration strides and a constant velocity stride were examined on ice. An electrogoniometer at the ankle was used to measure angular displacement and velocity values. Myoelectric activation patterns were measured at the vastus medialis, tibialis anterior, peroneus

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2

Toy, Jason Robert Siegler Sorin. "Subject specific models of the hindfoot reveal a relationship between morphology and passive mechanical properties /." Philadelphia, Pa. : Drexel University, 2009. http://hdl.handle.net/1860/3183.

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3

Chinworth, Susan A. (Susan Annette). "Ground Reaction Forces and Ankle and Knee Moments During Rope Skipping." Thesis, University of North Texas, 1989. https://digital.library.unt.edu/ark:/67531/metadc501047/.

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Ground reaction force (GRF) data collected and synchronized with film data to determine peak GRF and calculate moments about ankle and knee during rope skipping. Two, five minute conditions were analyzed for 10 subjects. Condition 1 was set rate and style. Condition 2 was subjects' own rate and style. Means and standard deviations were reported for peak GRF, ankle and knee moments. One way ANOVAs reported no significant difference between conditions for variables measured. Efficiency and nature of well phased impacts during rope skipping may be determined by combination of GRF, similarities i

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4

Clanton, Tameka A. "Prophylactic ankle stabilizers and their effect on lower extremity landing mechanics during drop jump landings to fatigue." Muncie, Ind. : Ball State University, 2009. http://cardinalscholar.bsu.edu/644.

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5

Botha, Jan. "The development of a device for the investigation of dorsiflexion range of the ankle with a capacity to measure pathology, recovery and pharmacological benefit." Thesis, Stellenbosch : University of Stellenbosch, 2005. http://hdl.handle.net/10019.1/2086.

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Thesis (MScEng (Mechanical and Mechatronic Engineering))--University of Stellenbosch, 2005.<br>Various ways exist whereby balance abilities of the individual can be assessed. However, most of these are subjective methods. This thesis strives to demonstrate the effectiveness of a new device, the Dorsiflexometer that can be used to objectively assess one’s balance abilities. The Dorsiflexometer was constructed and mathematically modelled using appropriate simplifying assumptions. After its construction, the Dorsiflexometer was tested using two experimental set-ups to obtain raw data. Both

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6

Skoss, Ann Rachel Locke. "Stabilisation of the human ankle joint in varying degrees of freedom : investigation of neuromuscular mechanisms." University of Western Australia. School of Human Movement and Exercise Science, 2002. http://theses.library.uwa.edu.au/adt-WU2003.0021.

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Previous research investigating the stability of the ankle joint complex may be categorised into two methodological groups, employing either an actuator to perturb the limb, or a form of standing balance disturbance such as a tilting platform, both of which test the joint in single degree of freedom (DOF). The aim of this thesis was to investigate how we control foot position and stabilise the joint when there is potential for movement in three DOF. A secondary aim of the thesis was to model the intrinsic mechanical properties of the ankle joint complex in three dimensions when coupled movemen

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7

Ludcke, Justin A. "Modelling of inflatable rescue boats (IRBs) in surf conditions to reduce injuries." Thesis, Queensland University of Technology, 2001.

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The Inflatable Rescue Boat (IRB) is arguably the most effective rescue tool used by the Australian surf lifesavers. The exceptional features of high mobility and rapid response have enabled it to become an icon on Australia's popular beaches. However, the IRB's extensive use within an environment that is as rugged as it is spectacular, has led it to become a danger to those who risk their lives to save others. Epidemiological research revealed lower limb injuries to be predominant, particularly the right leg. The common types of injuries were fractures and dislocations, as well as muscle or

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8

Tognella, Frederic. "Développement de méthodes pour la quantification de l'évolution des propriétés mécaniques des muscles humains en microgravité." Compiègne, 1994. http://www.theses.fr/1994COMPD679.

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L'atrophie fonctionnelle des muscles humains lors des séjours en microgravité, pose le double problème de sa compréhension, de sa prévention. Les muscles des membres inferieurs, surtout sur le triceps sural, du fait de sa fonction posturale, sont atteints. Les contre-mesures actuelles ne se sont pas pleinement efficaces. Les connaissances les plus précises sont acquises sur le rat ou l'on constate que l'atrophie, s'accompagne de modifications des propriétés contractiles et viscoélastiques. On se propose donc de mettre en place des protocoles non-invasifs d'étude sur les muscles de la cheville

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9

Wang, Jing. "Measurement of the mechanical properties of angle ply laminates." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0018/NQ53664.pdf.

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10

Bawcombe, Jonathan. "A study of Douglas-fir anatomical and mechanical properties and their interactions." Thesis, University of Bath, 2012. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.558893.

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Low embodied energy, ability to act as a carbon store and ease of recycling gives forest products an important role within a low carbon built environment. Almost 25 % of the coniferous resource within the South West of England is Douglas-fir, a species reputed for producing high quality timber. Despite this, the region is facing challenges in delivering the resources full potential, a contributing factor to which is a loss of knowledge regarding its quality. The aim of the work presented is to gain an improved understanding of the quality of Douglas-fir grown within the region, from the perspe

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11

Shaoguang, Chen. "Experimental Investigation on Mechanical Properties of Nanospring Thin Films Fabricated by Glancing Angle Deposition Technique." 京都大学 (Kyoto University), 2017. http://hdl.handle.net/2433/225556.

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12

Diao, Jie. "Development of Techniques to Quantify Chemical and Mechanical Modifications of Polymer Surfaces: Application to Chemical Mechanical Polishing." Diss., Available online, Georgia Institute of Technology, 2004, 2004. http://etd.gatech.edu/theses/available/etd-11222004-001703/.

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Thesis (Ph. D.)--Chemical Engineering, Georgia Institute of Technology, 2006.<br>Samuels, Robert J., Committee Member ; Henderson, Clifford L., Committee Member ; Danyluk, Steven, Committee Member ; Hess, Dennis W., Committee Chair ; Bottomley, Lawrence A., Committee Member ; Morris, Jeffrey F., Committee Co-Chair. Vita. Includes bibliographical references.

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13

Borodulina, Svetlana. "Micromechanical Behavior of Fiber Networks." Licentiate thesis, KTH, Hållfasthetslära (Avd.), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-123223.

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Paper is used in a wide range of applications, each of which has specific requirements on mechanical and surface properties. The role of paper strength on paper performance is still not well understood. This work addresses the mechanical properties of paper by utilizing fiber network simulation and consists of two parts.In the first part, we use a three-dimensional model of a network of fibers to describe the fracture process of paper accounting for nonlinearities at the fiber level (material model and geometry) and bond failures. A stress-strain curve of paper in tensile loading is described

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14

Manoharan, Sanjivan. "Bubble Growth from Submerged Orifices: Investigating the Influence of Surface Wettability, Liquid Properties, and Design Conditions." University of Cincinnati / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1479819854513389.

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15

Bucher, Thomas M. Jr. "CAPILLARITY AND TWO-PHASE FLUID TRANSPORT IN MEDIA WITH FIBERS OF DISSIMILAR PROPERTIES." VCU Scholars Compass, 2014. http://scholarscompass.vcu.edu/etd/3653.

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Capillarity is a physical phenomenon that acts as a driving force in the displacement of one fluid by another within a porous medium. This mechanism operates on the micro and nanoscale, and is responsible for countless observable events. This can include applications such as absorption in various hygiene products, self-cleaning surfaces such as water beading up and rolling off a specially-coated windshield, anti-icing, and water management in fuel cells, among many others. The most significant research into capillarity has occurred within the last century or so. Traditional formulations for fl

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16

Dahlgren, Eric D. "Small angle light scattering analysis of tissue." Link to electronic thesis, 2002. http://www.wpi.edu/Pubs/ETD/Available/etd-0111102-171921.

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17

Lingström, Rikard. "Formation and properties of polyelectrolyte multilayers on wood fibres : influence on paper strength and fibre wettability." Licentiate thesis, KTH, Fibre and Polymer Technology, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4062.

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<p>The work in this licentiate thesis examines the adsorption of polyelectrolyte multilayers (PEM) onto wood fibres as a new way to influence the properties of the fibre surfaces and hence the fibres. Fundamental aspects of PEM formation on wood fibres have been studied, and discussed in terms of paper strength and wood fibre wettability.</p><p>PEMs have been formed from three different polymer systems: 1) two strong polyelectrolytes (i.e., fully charged over a wide pH range), polydimethyldiallylammonium chloride (PDADMAC) and polystyrene sulphonate (PSS); 2) polyethylene oxide (PEO) and polya

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18

Smith, Steven A. F. "The internal structure, mechanics, and fluid flow properties of low-angle normal faults : a case study from the island of Elba, Italy." Thesis, Durham University, 2009. http://etheses.dur.ac.uk/2091/.

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Low-angle normal faults have been extensively documented in areas of regional extension, in both continental and oceanic lithosphere, but their existence as seismically active structures remains controversial. Low-angle normal faults do not conform to 'traditional’ frictional fault theory, and large earthquakes on low-angle normal faults appear to be rare. Their enigmatic nature suggests that they may hold important clues regarding the rheology of fault zones in general, controls on frictional behaviour, and the deformation histories of the mid- to upper-crust. In this study, I investigate the

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19

Roe, John Andrew. "How important is length? : mechanical testing and measurement of a cemented, polished, tapered femoral implant." Thesis, Queensland University of Technology, 2011. https://eprints.qut.edu.au/53200/1/John_Roe_Thesis.pdf.

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Total hip arthroplasty (THA) has a proven clinical record for providing pain relief and return of function to patients with disabling arthritis. There are many successful options for femoral implant design and fixation. Cemented, polished, tapered femoral implants have been shown to have excellent results in national joint registries and long-term clinical series. These implants are usually 150mm long at their lateral aspect. Due to their length, these implants cannot always be offered to patients due to variations in femoral anatomy. Polished, tapered implants as short as 95mm exist, however

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20

Chabak, Kelson D. "Conceptual study of rotary-wing microrobotics." Wright-Patterson: Air Force Institute of Technology, 2008. http://handle.dtic.mil/100.2/ADA487086.

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21

Hyll, Caroline. "Infrared Emittance of Paper : Method Development, Measurements and Application." Licentiate thesis, KTH, Mätteknik och optik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-104755.

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Thermography is a non-destructive technique which uses infrared radiation to obtain the temperature distribution of an object. The technique is increasingly used in the pulp and paper industry. To convert the detected infrared radiation to a temperature, the emittance of the material must be known. For several influencing parameters the emittance of paper and board has not previously been studied in detail. This is partly due to the lack of emittance measurement methods that allow for studying the influence of these parameters. An angle-resolved goniometric method for measuring the infrared em

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22

Guan, Youliang. "Crack path selection and shear toughening effects due to mixed mode loading and varied surface properties in beam-like adhesively bonded joints." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/24905.

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Structural adhesives are widely used with great success, and yet occasional failures can occur, often resulting from improper bonding procedures or joint design, overload or other detrimental service situations, or in response to a variety of environmental challenges. In these situations, cracks can start within the adhesive layer or debonds can initiate near an interface. The paths taken by propagating cracks can affect the resistance to failure and the subsequent service lives of the bonded structures. The behavior of propagating cracks in adhesive joints remains of interest, including wh

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23

Bouty, Adrien. "Influence de la dispersion des charges et de la conformation des chaines sur les propriétés mécaniques de systèmes nanocomposites SBR/Silice." Phd thesis, Université Paris Sud - Paris XI, 2013. http://tel.archives-ouvertes.fr/tel-00925836.

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Dans l'industrie du pneumatique, l'incorporation de nanoparticules de silice dans les élastomères permet d'obtenir des pneumatiques avec des propriétés mécaniques améliorées. D'un point de vue fondamental, deux contributions sont communément invoquées pour expliquer ces changements : (i) une contribution du réseau de charges, fortement dépendante de leur état de dispersion, (ii) une contribution des chaines dont la conformation est potentiellement modifiée en présence du réseau de charges. Cependant, les mécanismes permettant de relier cette structure nanométrique aux propriétés macroscopiques

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24

Lee, M. L., Yi Li, Yi Zhong, and W. Craig Carter. "Mechanical Properties of Bulk Metallic Glasses and Composites." 2003. http://hdl.handle.net/1721.1/3833.

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We have studied the mechanical properties of monolithic bulk metallic glasses and composite in the La based alloys. La₈₆₋yAl₁₄(Cu, Ni)y (y=24 to 32) alloy systems was used to cast the in-situ structure and subsequently tested under compression. We found that the ductility of the monolithic is actually poorer than that of the fully crystalline composite.<br>Singapore-MIT Alliance (SMA)

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25

Yeh, Ching-Hua, and 葉青樺. "Effects of Fiber Orientation Angle on the Mechanical Properties of Glass Fiber Reinforced Polypropylene." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/28587463347948022404.

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碩士<br>桃園創新技術學院<br>材料應用科技研究所<br>101<br>This study was prepared the varied fiber orientation angles (0°、＋45°、90°、－45°) of glass fiber-reinforced polypropylene of alternately laminated interlayer lamination , and discussed the tensile, flexural, and impact mechanical properties of different thermoplastic substrate laminated fiber orientation angles. We also observed the interfacial fracture structure of the tensile failure by scanning electron microscopy (SEM). About mechanical properties, results show that when the fiber orientation angle is parallel to the axis of mechanical force, the mechanic

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26

Grant, Colin A., Peter C. Twigg, M. D. Savage, W. H. Woon, M. C. T. Wilson, and D. Greig. "Estimating the mechanical properties of retinal tissue using contact angle measurements of a spreading droplet." 2013. http://hdl.handle.net/10454/5997.

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No<br>When a drop of liquid is placed on the surface of a soft material, the surface deformation and the rate of spreading of the triple contact point is dependent on the mechanical properties of the substrate. This study seeks to use drop spreading behavior to infer the mechanical properties of soft biological materials. As an illustration of the value of this technique we have compared the spreading behavior of a liquid droplet on two viscoelastic, soft materials, namely, an elastomer and a low concentration agar gel. The ratio of the mechanical properties of these soft materials obtained in

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27

Xu, Xin. "Phase Separation in Stainless Steels Studied by Small-angle Neutron Scattering." Doctoral thesis, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-217616.

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Fe-Cr based steels, i.e. stainless steels, possessing a combination of excellent corrosion resistance and good mechanical properties, have indispensable applications ranging from low-end cooking utensils, to sophisticated components for nuclear power plants. However, the bcc/bct phase containing stainless steels which have a miscibility gap (MG) suffer from the so-called “475 oC embrittlement” leading to hardness increase and toughness deterioration. It occurs due to demixing of Fe and Cr leading to the formation of Fe-rich (α) and Cr-rich (α′) regions in bcc/bct phases. The demixing is referr

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28

lee, Chih-yao, and 李智堯. "Study of effects of equal channel angular pressing with different angle and pass of AZ31/WS2 INT magnesium matrix composites on their microstructure and mechanical properties." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/hvmrgv.

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碩士<br>國立臺灣科技大學<br>機械工程系<br>106<br>The main purpose of this study is to use AZ31 magnesium alloy as matrix and use WS_2-INT as the strengthening phase to produce Magnesium-based composites. After T4 heat treatment, materials will be extruded with 90° and 120° ECAP dies. Disscusions of effects about different angle and pass of ECAP will be included in this study. From the experimental results, it can be found that adding additional WS_2-INT in the matrix can effectively enhance the material's strength and ductility through grain refinement. Through T4 heat treatment, the β-Mg_17 Al_12 phase can

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29

(6533324), Shreya Narayan Sahasrabudhe. "Physical Properties of Food Oils and Factors Affecting Bubble Dynamics During Frying." Thesis, 2019.

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