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Dissertations / Theses on the topic 'Tensile strains'

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1

Lin, Muh-ren. "Experimental investigation of temperature effect on uniaxial tensile test /." The Ohio State University, 1986. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487266011224679.

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2

Leung, Ming Yan. "Dynamic characterization of micro scale samples using the Hopkinson tensile bar technique /." View abstract or full-text, 2007. http://library.ust.hk/cgi/db/thesis.pl?MECH%202007%20LEUNG.

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3

Win, San San Civil &amp Environmental Engineering Faculty of Engineering UNSW. "Tensile strength of compacted soils subject to wetting and drying." Awarded by:University of New South Wales. School of Civil and Environmental Engineering, 2006. http://handle.unsw.edu.au/1959.4/31157.

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Knowledge of the stress-strain relationship of the compacted soils in tension is of importance for understanding of cracking that occurs in earth structures, in particular embankment dams and landfill barriers. Understanding the correlation between tensile properties and traditional soil parameters and soil suction is essential in identifying problems associated with desiccation induced cracking. A series of extensive laboratory experiments were performed on three different soils from existing embankment dams. This thesis concentrated on the investigation of tensile strength in relation to the
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4

Vorakunpinij, Adisak. "The effect of paper structure on the deviation between tensile and compressive responses." Diss., Georgia Institute of Technology, 2003. http://hdl.handle.net/1853/7058.

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5

Roth, Michael Jason 1975. "Flexural and tensile properties of thin, very high-strength, fiber-reinforced concrete panels." Master's thesis, Mississippi State : Mississippi State University, 2007. http://library.msstate.edu/etd/show.asp?etd=etd-11062007-215816.

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6

Yang, Yang. "Stress intensity factors of circumferential semi-elliptical internal surface cracks of tubular member subjected to axial tensile loading." Thesis, University of Macau, 2010. http://umaclib3.umac.mo/record=b2182941.

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7

Clarke, Jo Ann Marie Carleton University Dissertation Engineering Mechanical. "High strain rate tensile testing." Ottawa, 1993.

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8

Sasazaki, Yoshihiro. "Ultrastructure of articular cartilage under tensile strain." Thesis, University of Leeds, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.410724.

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9

Ouyang, Xin. "CONSTITUTIVE EQUATIONS OF RUBBER UNDER LARGE TENSILE STRAIN AND HIGH STRAIN RATES." University of Akron / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=akron1154146622.

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10

Berry, Catherine Cecilia. "The influence of tensile strain on fibroblasts in culture." Thesis, Queen Mary, University of London, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.271478.

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11

Saloustros, Savvas. "Tracking localized cracks in the computational analysis of masonry structures." Doctoral thesis, Universitat Politècnica de Catalunya, 2017. http://hdl.handle.net/10803/461714.

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Numerical methods aid significantly the engineering efforts towards the conservation of existing masonry structures and the design of new ones. Among them, macro-mechanical finite element methods based on the smeared crack approach are commonly preferred as an affordable choice for the analysis of large masonry structures. Nevertheless, they usu-ally result in a non-realistic representation of damage as smeared over large areas of the structure, which hampers the correct interpretation of the damage pattern. Additionally, a more critical pathology of this approach is the mesh-dependency, which
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12

Fowler, John Paul. "Damage evolution in ductile materials at high rates of tensile strain." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq22111.pdf.

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13

Siddiqui, Md Tareq. "Scaling studies on the tensile strain rate sensitivity of laminated composites." Thesis, Wichita State University, 2011. http://hdl.handle.net/10057/5207.

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The stress-strain behavior and failure of composite materials are strain rate sensitive, and influenced by the dimensions of the structure. To elucidate the combined effects of scaling and strain rate on the strength of unnotched continuous fiber reinforced composites, an experimental investigation has been conducted on Newport NB321/7781 fiberglass/epoxy and Toray T800/3900-2B unitape/epoxy materials. The experimental results have been characterized in terms of failure strength, failure modes and the Weibull modulus m. A 2D-scaling approach has been followed and composite coupons were fabrica
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14

Kukatla, Harish C. "A Study of Strain Elastography Under a Normal Tensile Testing Condition." Youngstown State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1296334599.

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15

Fowler, John Paul Carleton University Dissertation Engineering Mechanical. "Damage evolution in ductile materials at high rates of tensile strain." Ottawa, 1996.

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16

Goley, Patrick Stephen. "Plastic Relaxation of Highly Tensile Strained (100) Ge/InGaAs Heterostructures." Thesis, Virginia Tech, 2015. http://hdl.handle.net/10919/54944.

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Biaxial tensile strain has been shown to greatly enhance the optoelectronic properties of epitaxial germanium (Ge) layers. As a result, tensile-Ge (and#949t-Ge) layers grown on larger lattice constant InGaAs or GeSn have attracted great research interest. However, no previous studies have investigated the plastic relaxation occurring in these and#949t-Ge layers. Here, we experimentally demonstrate that plastic relaxation occurs in nearly all and#949t-Ge epitaxial layers that are of practical interest for optoelectronic applications, even when layers may still exhibit strain-enhanced characteri
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17

Zrir, Mohammad ali. "Tensile-strained and highly n-doped Germanium for optoelectronic applications." Thesis, Aix-Marseille, 2015. http://www.theses.fr/2015AIXM4036/document.

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Dans le cadre de ce travail de thèse, nous avons étudié une approche permettant de réaliser les composants d'émission de la lumière basés sur les couches epitaxiées de Ge contraint en tension et fortement dopé de type n. Afin de créer de contrainte en tension dans les films épitaxiés de Ge, nous avons investi deux méthodes : faire croître du Ge sur InGaAs ayant un paramètre de maille plus grand que celui de Ge, et faire croître du Ge sur Si, en prenant l'avantage du coefficient de dilatation thermique du Ge, qui est deux fois plus grand que celui du Si. Concernant la croissance de Ge sur les s
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18

Verteramo, Alberto Paolo. "Cartilage response to high strain rates in impact and tensile loading modes." Thesis, University of Leeds, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.424058.

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19

Mak, Yew-Poh. "Strain rate effects on tensile fracture and damage tolerance of composite laminates." Thesis, Massachusetts Institute of Technology, 1992. http://hdl.handle.net/1721.1/43256.

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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1992.<br>Title as it appears in the June, 1992 MIT Graduate List: Strain rate effects on tensile failure and damage tolerance of composite laminates.<br>Includes bibliographical references (leaves 133-138).<br>by Yew-Poh Mak.<br>M.S.
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20

Rutherford, Benjamin Andrew. "Beneficial Tensile Mean Strain Effects on the Fatigue Behavior of Superelastic NiTi." Thesis, Mississippi State University, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10266594.

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<p> In this work, beneficial effects of tensile mean strain on fatigue behavior and microstructure of superelastic NiTi (i.e. Nitinol) are studied. Most applications, such as endovascular stents made with NiTi, are subjected to a combination of constant and cyclic loading; thus, understanding the fatigue behavior of NiTi undergoing mean strain loading is necessary. Cyclic strain-controlled fatigue tests are designed to investigate the effects of tensile mean strain on fatigue of superelastic NiTi. Experimental observations show that combinations of large tensile mean strains and small strain a
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21

Johnson, David Thomas. "Deformation mechanisms in ABS polymers." Thesis, Cranfield University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341042.

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22

Bartels, Peter Atwood. "Net section rupture in tension members with connection eccentricity." Morgantown, W. Va. : [West Virginia University Libraries], 2000. http://etd.wvu.edu/templates/showETD.cfm?recnum=1497.

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Thesis (M.S.)--West Virginia University, 2000.<br>Title from document title page. Document formatted into pages; contains x, 101 p. : ill. (some col.) Includes abstract. Includes bibliographical references (p. 77-80).
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23

Falola, Adekunle Samuel. "MECHANICAL CHARACTERIZATION – MONOTONIC MICRO-TENSILE, STRESS RELAXATION, AND STRAIN-CONTROLLED CYCLIC STRESS-STRAIN RESPONSES OF SINGLE ELECTROSPUN PVDF NANOFIBERS." University of Akron / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=akron1564557199987647.

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24

Clavel, Michael Brian. "Tensile-Strained Ge/InₓGa₁₋ₓAs Heterostructures for Electronic and Photonic Applications". Thesis, Virginia Tech, 2015. http://hdl.handle.net/10919/78129.

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The continued scaling of feature size in silicon (Si)-based complimentary metal-oxide-semiconductor (CMOS) technology has led to a rapid increase in compute power. Resulting from increases in device densities and advances in materials and transistor design, integrated circuit (IC) performance has continued to improve while operational power (VDD) has been substantially reduced. However, as feature sizes approach the atomic length scale, fundamental limitations in switching characteristics (such as subthreshold slope, SS, and OFF-state power dissipation) pose key technical challenges moving for
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25

Chen, Yu-Szu. "Testing and modeling tensile stress-strain curve for prestressing wires in railroad ties." Thesis, Kansas State University, 2016. http://hdl.handle.net/2097/32582.

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Master of Science<br>Department of Civil Engineering<br>Robert J. Peterman<br>Prestressed concrete is commonly used for bridges, pavement and railroad ties because of economic advantages in cost, sustainability service life, and environmental friendliness. In general concrete design standard, the ultimate moment strength in flexure design is computed by finding the equilibrium of the internal force in the section (the compressive force in concrete and tension force in the steel and reinforcement). To predict tension force in steel one generally applies the 7-wire low-relaxation prestressing st
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26

Umberger, Pierce David. "Modeling the High Strain Rate Tensile Response and Shear Failure of Thermoplastic Composites." Diss., Virginia Tech, 2013. http://hdl.handle.net/10919/23846.

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The high strain rate fiber direction tensile response of Ultra High Molecular Weight Polyethylene (UHMWPE) composites is of interest in applications where impact damage may occur. This response varies substantially with strain rate. However, physical testing of these composites is difficult at strain rates above 10^-1/s. A Monte Carlo simulation of composite tensile strength is constructed to estimate the tensile behavior of these composites. Load redistribution in the vicinity of fiber breaks varies according to fiber and matrix properties, which are in turn strain rate dependent. The dis
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27

Das, Sagar. "A strain-rate dependent tensile damage model for brittle materials under impact loading." Thesis, The University of Sydney, 2016. http://hdl.handle.net/2123/15612.

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Brittle materials are often subjected to high strain rate impact load, which could be imposed due to intentional demolition purposes or during ballistic impact on protective structures. Fragments of different sizes are generally observed by such impact, which are directly related to the strain rate experienced by the material at different locations. This thesis presents a rate-dependent constitutive model to predict such dynamic behaviour of brittle solid under tensile loading. A three-parameter rate dependent tensile damage model, under continuum mechanics framework, is developed for simulati
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28

Lam, Daniel F. "STRAIN CONCENTRATION AND TENSION DOMINATED STIFFENED AEROSPACE STRUCTURES." University of Akron / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=akron1145393262.

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29

Guenther, Cristy Louise. "Evaluation of shear and diagonal tension in plain concrete." Laramie, Wyo. : University of Wyoming, 2007. http://proquest.umi.com/pqdweb?did=1400964851&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.

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30

Way, Louise. "The use of a novel miniature strain device to investigate the response of tendon cells to In vitro tensile strain." Thesis, University of Sheffield, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.574561.

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The aim of this work was to study the cell biology of tendons and their response to in vitro tensile strain with a view to elucidating how cells sense mechanical load and what changes occur to the cells in response. This work was done in order to provide some scientific background to aid the improvement of strategies for the treatment and prevention of tendon damage and develop appropriate methodologies related to the mechanical stimulation of tissue engineered tendons. A miniature cyclic straining device was designed (in collaboration with Electrical Engineering) which utilised a 50ml centrif
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31

Amini, Khoiy Keyvan. "Biomechanical Characterization and Simulation of the Tricuspid Valve." University of Akron / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=akron1542651986497595.

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32

Nayeem, Mustayeen B. "Applied mechanical tensile strain effects on silicon bipolar and silicon-germanium heterojunction bipolar devices." Thesis, Available online, Georgia Institute of Technology, 2005, 2005. http://etd.gatech.edu/theses/available/etd-07182005-102447/.

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Thesis (M. S.)--Electrical and Computer Engineering, Georgia Institute of Technology, 2006.<br>Dr. John D. Cressler, Committee Chair ; John Papapolymerou, Committee Member ; Joy Laskar, Committee Member.
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33

Zakaria, Muzdalifah. "The influence of strain rate on the response to tensile deformation of titanium alloys." Thesis, University of Birmingham, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.402525.

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34

Dunford, Kristin Marie. "Effect of Postmortem Time and Preservation Fluid on the Tensile Material Properties of Bovine Liver Parenchyma." Thesis, Virginia Tech, 2017. http://hdl.handle.net/10919/90179.

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The liver is one of the most frequently injured abdominal organs in motor vehicle collisions. Although previous studies have quantified the tensile failure properties of human liver parenchyma at 48hrs postmortem, it is currently unknown how the material properties change between time of death and 48hrs postmortem. Therefore, the purpose of this study was to quantify the effects of postmortem degradation on the tensile material properties of bovine liver parenchyma when stored in DMEM or saline. Fourteen fresh bovine livers were obtained from a local slaughter house and stored in either DMEM o
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35

Abul-Hamayel, Ismat A. A. 1960. "MOMENT ROTATION CURVES FOR TOP AND SEAT CONNECTIONS (STATIC LOADING, TENSION)." Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/291311.

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36

Wu, Xiaoxia. "Effect of strain gradient on the nucleation of martensite in rod under tension /." View Abstract or Full-Text, 2003. http://library.ust.hk/cgi/db/thesis.pl?MECH%202003%20WU.

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Thesis (M. Phil.)--Hong Kong University of Science and Technology, 2003.<br>Includes bibliographical references (leaves 76-81). Also available in electronic version. Access restricted to campus users.
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37

El-Hossary, Wafaa Hassanein Hassan. "The effect of cyclic tensile strain on gene expression of cultured human periodontal ligament cells." Thesis, University of Leeds, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.509041.

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Objectives: To analyse the changes in gene expression in a population of human periodontal ligament (HPDL) cells exposed to cyclic tensile strain in a three dimensional culture system. Results: Cells derived from extracted teeth were shown to represent a mixed population with greater than 95% of cells expressing markers characteristic of periodontal ligament fibroblasts with an oestobastic phenotype with a smaller sub-population (2-3%) of stem cells. Cells from several different donors were subjected to an applied tensile strain (5%) and compared to unstressed controls. RNA extracted immediate
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38

Baria, Katherine Elizabeth. "Modulation of the effect of tensile strain on fibroblasts by extracellular matrix molecules and serum." Thesis, University of London, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.497240.

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39

Chan, Jason J. (Jason Joseph). "Design of fixtures and specimens for high strain-rate tensile testing on a drop tower." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/54529.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2009.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 38-39).<br>Drop towers are used to perform mechanical tests at strain rates similar to those experienced in automobile crashes. By their nature, drop towers are configured to perform compression tests only. This project aims to design a set of fixtures and specimens to allow the machine to perform tensile tests. Two major design options were considered and analyzed using engineering mechanics and finite element analysis
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40

Sandora, Normalina. "Regeneration of decellularised tendon by human mesenchymal stem cells in response to uniaxial tensile strain." Thesis, University of Leeds, 2016. http://etheses.whiterose.ac.uk/16429/.

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Injury of ligaments is very common, and a total tear of the anterior cruciate ligament (ACL) demands replacement. Ideally, a graft for ligament replacement should be able to regenerate into a native like ligament, and restore physiological and anatomical function immediately after transplantation. The University of Leeds has developed a protocol to generate an acellular tendon scaffold derived from allograft/ xenograft using decellularisation technology. The aims of the study were to study the differentiation of human bone marrow derived multipotential stromal cells (BM-MSC) seeded onto the de
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41

Lindmark, Jenny. "Tensile Strain Monitoring in Reinforced Concrete Using Non-Contact Full-Field Optical Deformation Measurement Systems." Thesis, Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-70090.

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As traffic loads increase and bridges age the need for structural health monitoring is growing. With the digitalization of our society, new non-contact full-field measurement techniques have been developed. These techniques have the potential to be used in monitoring of existing bridges. Today visual inspections are carried out every sixth year. These only give a rough estimate of the structure's health and only provide information about the surface of the structure. In addition to these inspections, traditional sensors like linear variable differential transformers and strain gauges are used
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42

Al-Attili, Abdelrahman. "Band-gap engineering of Germanium monolithic light sources using tensile strain and n-type doping." Thesis, University of Southampton, 2016. https://eprints.soton.ac.uk/410363/.

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Band-gap engineering of bulk germanium (Ge) holds the potential for realizing a laser source, permitting full integration of monolithic circuitry on CMOS platforms. Techniques rely mainly on tensile strain and n-type doping. In this thesis, we focus on studying diffusion-based phosphorus (P) doping of Ge using spin-on dopants (SOD), and tensile strain engineering using freestanding micro-electro-mechanical systems (MEMS)-like structures. Process development of a reliable SOD recipe was conducted using furnace and rapid-thermal annealing, and successful doping up to 2.5 x 10¹⁹cm⁻³ was achieved,
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43

Konieczny, Mark J. "Full-Field Strain and Temperature Measurement of Epoxy Resin PR-520 Subjected to Tensile, Compressive, and Torsional Loading at Various Strain Rates." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1556880386878411.

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44

Gilbert, Hamish. "The response of human annulus fibrosus cells to cyclic tensile strain : evidence for an altered mechanotransduction pathway with intervertebral disc degeneration." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/the-response-of-human-annulus-fibrosus-cells-to-cyclic-tensile-strain-evidence-for-an-altered-mechanotransduction-pathway-with-intervertebral-disc-degeneration(e61ab359-7b23-454e-ab4b-2236d3ea9ed9).html.

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The Intervertebral disc (IVD), comprised of two distinct regions, namely the fibrous annulus fibrosus (AF) and the gelatinous nucleus pulposus (NP), is a fibrocartilage pad located between adjoining vertebrae of the spine. The function of the IVD is to provide stability to the spine, while maintaining movement. IVD degeneration, also known as degenerative disc disease (DDD), is the process whereby the IVD tissue degrades, resulting in loss of function to the disc. Low back pain (LBP) is associated with the degeneration of the IVD, making it important to investigate the pathogenesis of DDD, as
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45

Gonzalez, Lisa. "Investigation of the shear lag coefficient for welded tension members." Thesis, Virginia Tech, 1989. http://hdl.handle.net/10919/45973.

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<p>Shear lag is a non-uniform distribution of stress resulting when all cross sectional elements are not directly connected. This phenomenon renders the cross section only partially effective in resisting tensile loads. In this investigation, both experimental and analytical studies were conducted to ascertain the shear lag coefficients to be used in design of welded tension members by the AISC Specifications [1989].</p> <p>Four types of specimens (angles, plates, channels, and tees), were tested, each with three weld configurations (longitudinal welds only, transverse welds only, and a combin
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46

Kersauson, Malo de. "Vers un laser germanium dopé N et contraint en tension." Thesis, Paris 11, 2013. http://www.theses.fr/2013PA112107/document.

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Dans ce travail de thèse, nous avons étudié différentes approches qui devraient permettre d’obtenir l’effet laser dans le germanium. Nous avons pu montrer expérimentalement l’influence du dopage et de la déformation sur la structure de bande du germanium, et l’adéquation avec les modèles concluants à l’existence de gain. Nous avons exploré les possibilités offertes par l’hétéro-épitaxie sur III-V pour obtenir une déformation en tension du germanium. Nous avons évalué la déformation résultante par des mesures croisées de rayons X, de diffusion Raman et de photoluminescence, et étudié l’évolutio
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47

Owens, Anthony Taylor Tippur Hareesh V. "Development of a split Hopkinson tension bar for testing stress-strain response of particulate composites under high rates of loading." Auburn, Ala., 2007. http://repo.lib.auburn.edu/Send%2002-04-08/OWENS_ANTHONY_54.pdf.

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48

Radford, Darren D. "Mechanical and constitutive behaviour of Zr-2.5Nb pressure tube material at high rates of tensile strain." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0018/NQ52332.pdf.

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49

Radford, Darren D. (Darren Dale) Carleton University Dissertation Engineering Mechanical and Aerospace. "Mechanical and constitutive behaviour of Zr-2.5Nb pressure tube material at high rates of tensile strain." Ottawa, 2000.

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50

Iwamoto, Sohei. "Analysis of multiple cracking and interfacial debonding of the galvannealed coating layer under applied tensile strain." 京都大学 (Kyoto University), 2009. http://hdl.handle.net/2433/77968.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(工学)<br>甲第14575号<br>工博第3043号<br>新制||工||1453(附属図書館)<br>26927<br>UT51-2009-D287<br>京都大学大学院工学研究科材料工学専攻<br>(主査)教授 落合 庄治郎, 教授 粟倉 泰弘, 准教授 奥田 浩司<br>学位規則第4条第1項該当
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