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Dissertations / Theses on the topic 'Mechanical property'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Janakiraman, Balasubramanian. "Mechanical property measurement by indentation techniques." Texas A&M University, 2004. http://hdl.handle.net/1969.1/3111.

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The mechanical properties of materials are usually evaluated by performing a tensile or hardness test on the sample. Tensile tests are often time consuming, destructive and need specially prepared specimens. On the other hand, there is no direct theoretical correlation between the hardness number and the mechanical properties of a material although phenomenological relationships do exist. The advantages of indentation techniques are that they are non-destructive, quick, and can be applied to small material samples and localized in fashion. Mechanical properties are typically determined from sp

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2

Bargo, Johnny E. "Mechanical property characterization of recycled thermoplastics." Morgantown, W. Va. : [West Virginia University Libraries], 2000. http://etd.wvu.edu/templates/showETD.cfm?recnum=1473.

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Thesis (M.S.)--West Virginia University, 2000.<br>Title from document title page. Document formatted into pages; contains xvii, 143 p. : ill. (some col.) Includes abstract. Includes bibliographical references (p. 104-105).

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3

Hill, Jeremy Lee. "Mechanical property determination for flexible material systems." Diss., Georgia Institute of Technology, 2016. http://hdl.handle.net/1853/54993.

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Inflatable Aerodynamic Decelerators (IADs) are a candidate technology NASA began investigating in the late 1960’s. Compared to supersonic parachutes, IADs represent a decelerator option capable of operating at higher Mach numbers and dynamic pressures. IADs have seen a resurgence in interest from the Entry, Descent, and Landing (EDL) community in recent years. The NASA Space Technology Roadmap (STR) highlights EDL systems, as well as, Materials, Structures, Mechanical Systems, and Manufacturing (MSMM) as key Technology Areas for development in the future; recognizing deployable decelerators

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4

Wright, Andrew M. (Andrew Milton) 1976. "Real-time mass property estimation." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/88852.

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5

Alifierakis, Michail. "Mechanical Property Modeling of Graphene Filled Elastomeric Composites." Thesis, Princeton University, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10823814.

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<p>Accessing improved elastomeric composites filled with functionalized graphene sheets (FGSs) requires an understanding of how the FGSs aggregate and how the position of FGSs affects the mechanical properties of the final composite material. In this thesis, I study both effects by devising models for 2-D particles in the 10s of microns scale and comparing my results with experiments. These models enable an understanding of the effect of the particles in a level that is hard to be studied experimentally or by molecular models. In the first part, I present a model for aggregation of 2-D particl

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6

Carrasquel, Isha. "STRUCTURE-PROPERTY QUANTIFICATION RELATED TO CRASHWORTHINESS." MSSTATE, 2008. http://sun.library.msstate.edu/ETD-db/theses/available/etd-07102008-140429/.

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The objective of this study is to characterize critical component structure-properties on a Dodge Neon for material response refinement in crashworthiness simulations. Crashworthiness simulations using full-scale finite element (FE) vehicle models are an important part of vehicle design. According to the National Highway Traffic Safety Administration (NHTSA), there were over six million vehicle crashes in the United States during 2004, claming lives of more than 40,000 people. Crashworthiness simulations on a detailed FE model of a 1996 Plymouth/Dodge Neon were conducted on the NHTSA for diffe

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7

Kim, Joon-Seop. "Structure-morphology-mechanical property relationships in various random ionomers." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=28475.

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The aim of this study was to explore the effects of a range of variables on the properties of ionomers, and also to investigate the structure-morphology-property relationships in these materials in order to advance our understanding in the light of the EHM model. In the first part of the work, the influence of variables such as sample preparation conditions, molecular weight and degree of neutralization on the dynamic mechanical properties of ionomers were studied.<br>In the second part, the effects of surfactant addition and chemical structure of ionomers were investigated. Sodium sulfonated

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8

Benjamin, Alex(Alex Robert). "3D organ property mapping using freehand ultrasound scans." Thesis, Massachusetts Institute of Technology, 2020. https://hdl.handle.net/1721.1/128989.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2020<br>Cataloged from student-submitted PDF of thesis.<br>Includes bibliographical references (pages 141-151).<br>3D organ property mapping has gained a considerable amount of interest in the recent years because of its diagnostic and clinical significance. Existing methods for 3D property mapping include computed tomography (CT), magnetic resonance imaging (MRI), and 3D ultrasound (3DUS). These methods, while capable of producing 3D maps, suffer from one or more of the following drawbacks: high cost,

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9

Hollinshead, Phillip Anthony. "Texture and mechanical property developments in aluminium alloy hot rolling." Thesis, Imperial College London, 1986. http://hdl.handle.net/10044/1/38036.

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10

Kibble, Kevin Alexander. "Surface finish-mechanical property relation in reaction-bonded silicon carbide." Thesis, University of Wolverhampton, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240364.

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11

Fahey, Maureen Theresa. "Mechanical property characterization and enhancement of rigid rod polymer fibers." Thesis, Massachusetts Institute of Technology, 1990. http://hdl.handle.net/1721.1/42983.

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12

Stagon, John Thomas. "The Mechanical Property Analysis of Thin Diamond Coated Metal Substrates." Case Western Reserve University School of Graduate Studies / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=case1337013344.

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13

Richardson, Mark D. "Microstructural and mechanical property development in metastable beta titanium alloys." Thesis, University of Sheffield, 2016. http://etheses.whiterose.ac.uk/12663/.

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Titanium alloys represent an ever increasing proportion of the materials employed in aerostructural applications. Metastable beta alloys in particular, offer high specific strength and good corrosion resistance that allow them to compete with steels. Ti-5Al-5Mo-5V-3Cr and Ti-10V-2Fe-3Al are two such alloys used in the main landing gear of large commercial aircraft. Thermomechanical processing of metastable beta alloys is critical in obtaining the desired microstructure, which in turn governs the mechanical properties. This therefore demands a thorough understanding of the relationship between

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14

Xie, Mayue. "Interface problems in micromechanics and effective composite property analysis." Related electronic resource: Current Research at SU : database of SU dissertations, recent titles available full text, 2005. http://wwwlib.umi.com/cr/syr/main.

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15

Wigley, Nicholas Roy. "Property prediction of continuous annealed steels." Thesis, Cardiff University, 2012. http://orca.cf.ac.uk/38602/.

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To compete in the current economic climate steel companies are striving to reduce costs and tighten process windows. It was with this in mind that a property prediction model for continuous annealed steels produced at Tata Steel’s plants in South Wales was developed. As continuous annealing is one of the final processes that strip steel undergoes before being dispatched to the customer the final properties of the strip are dependent on many factors. These include the annealing conditions, previous thermo-‐mechanical processing and the steel chemistry. Currently these properties, proof stress,

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16

Tucker, Matthew T. "STRUCTURE-PROPERTY STRESS STATE DEPENDENT RELATIONSHIPS UNDER VARYING STRAIN RATES." MSSTATE, 2009. http://sun.library.msstate.edu/ETD-db/theses/available/etd-04022009-091044/.

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In this work, understanding the microstructural effects on stress state and strain rate dependent plasticity, damage, and failure of aluminum and magnesium alloys were examined. Several experimental techniques were employed to implement the test data into a physics-based internal state variable plasticity-damage model. Effects arising from various strain rates, stress states, and material orientations were quantified and discussed within the framework of linking microstructural features to mechanical properties. The method developed for determining structure-property relations was validated by

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17

Ji, Guang. "Study on Microstructure and Adhesion Property of Electrospun Polymer Blends." University of Akron / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=akron1435789657.

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Cerezo, Frances Therese, and francestherese_cerezo@hotmail com. "Thermal stability and mechanical property of polymer layered graphite oxide composites." RMIT University. Applied Sciences, 2006. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20080627.161157.

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Polymer composites formed from layered fillers with high surface volume ratio show enhanced reinforcement. Graphite oxide is a high modulus material that can be separated into thin layers with high surface area. The aim of this study is to prepare polymer layered graphite oxide composites using functionalised polyolefin to enhance compatibility with various forms of layered graphite oxide in varying concentration. Functionalised polyolefins reinforced with layered graphite oxides and expanded graphite oxides were prepared using solution blending and melt blending methods. Three different mi

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Zhang, Zhongbin. "Transport and mechanical property studies of barrier plastic food packaging materials." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ40392.pdf.

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20

Aitchison, Graham. "The mechanical characterisation of a model bioresorbable composite for property prediction." Thesis, University of Nottingham, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.421490.

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Kumar, Naresh. "Exploring the variability in mechanical property testing of dental resin composites." Thesis, University of Birmingham, 2011. http://etheses.bham.ac.uk//id/eprint/1494/.

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The invention of dental resin based-composites (RBCs) has provided a broad range of materials for the restoration of load-bearing posterior teeth with excellent clinical results and adequate longevity. Currently, a lack of consensus exists among researchers regarding classification of RBCs as a result of slight variations in filler size and associated interchangeable mechanical properties of “microhybrid”, “nanohybrid” and “nanofilled” RBCs. Also, the inconsistency in mechanical property testing of RBCs is evident amongst researchers. This research explored the variability in experimental and

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Wang, Wei. "Selective laser melting of Al alloys : microstructure and mechanical property development." Thesis, University of Birmingham, 2016. http://etheses.bham.ac.uk//id/eprint/6613/.

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The aim of this project is developing a near net-shape processing route for Al-alloy compressor components with Selective Laser Melting (SLM). Design of experiments (DOE) techniques such as the Response Surface Method, and statistical analysis using the analysis of variance (ANOVA) were applied for processing parameter optimisation in order to minimise the defects (pores or cracks) and studying the influence of powder, such as chemical composition, particle shape/ morphology and particle size and SLM parameters, such as laser power, laser scan speed, hatch spacing, laser scan strategy, island

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Lam, Eric W. (Eric Wing-Jing). "Mechanical property characterization of metal nano-particle films for MEMS devices." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/78451.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2012.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 79-83).<br>Printing-based fabrication methods have emerged as a promising alternative to conventional lithographic processes in a number of applications. These methods are being exploited in display manufacturing, flexible electronics, and more recently MEMS. Unlike applications in printed electronics, MEMS devices require comparatively thick layers, typically on the order of microns. In the micro

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Park, Conrad. "Mechanical Performance and Structure-Property Relations in6061B Aluminum Metal Matrix Composites." Case Western Reserve University School of Graduate Studies / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=case1547842396716777.

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Yanagioka, Masaki. "Analysis of the structure-mechanical property relationships of nanoparticle-filled hydrogels /." May be available electronically:, 2009. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.

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Eng, Mindy. "Exploring property driven design fabrication through materials testing and software development." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/65176.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2010.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student submitted PDF version of thesis. Vita.<br>Includes bibliographical references (p. 33).<br>Since its introduction in the late 1980s, layered manufacturing has become an increasingly efficient and common means to delivering functional and visually representative prototypes in relatively short amounts of time from previously prepare

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Burcham, Megan Noel. "Multiscale structure-property relationships of ultra-high performance concrete." Thesis, Mississippi State University, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10141618.

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<p> The structure-property relationships of Ultra-High Performance Concrete (UHPC) were quantified using imaging techniques to characterize the multiscale hierarchical heterogeneities and the mechanical properties. Through image analysis the average size, percent area, nearest neighbor distance, and relative number density of each inclusion type was determined and then used to create Representative Volume Element (RVE) cubes for use in Finite Element (FE) analysis. Three different size scale RVEs at the mesoscale were found to best represent the material: the largest length scale (35 mm side l

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Söderberg, Jansson Marcus, and Oskar Lundkvist. "Property Optimization of PM-gearing." Thesis, KTH, Maskinkonstruktion (Inst.), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-209549.

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The purpose of this bachelor thesis is to design and optimize a powder metal gear through FEM-analyzes. The moment of inertia and weight of the gear shall be reduced at the same time as the demands on tension and bending stiffness are met. The gear that is used as reference and will be optimized is the standard gear in the FZG-rig at the department of Machine Design at KTH. The work is initiated with a literary study. After that a CAD-model of the gear and its pinion is created in Solid Edge. Then the reference gear is analyzed in the FEM-program Ansys and control calculations are made accordi

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Dong, Yao. "Effects of Processing Techniques on Mechanical Properties of Selected Polymers." Thesis, University of North Texas, 2013. https://digital.library.unt.edu/ark:/67531/metadc271805/.

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The mechanical properties of a polymer represent the critical characteristics to be considered when determining the applications for it. The same polymer processed with different methods can exhibit different mechanical properties. The purpose of this study is to investigate the difference in mechanical properties of the selected polymers caused by different processing techniques and conditions. Three polymers were studied, including low density polyethylene (LDPE), polypropylene (PP), and NEXPRENE® 1287A. Samples were processed with injection molding and compression molding under different pr

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30

Korte, Sandra. "Processing-Property Relationships of Hemp Fibre." Thesis, University of Canterbury. Mechanical Engineering, 2006. http://hdl.handle.net/10092/1175.

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There is great interest in the plant Cannabis sativa (hemp) as a source of technical fibres for the reinforcement of polymers in composite materials due to its high mechanical properties. As a natural fibre hemp also offers biodegradabilty and is therefore an inexpensive and renewable alternative to glass fibres However, the environmental benefits of natural fibres cannot be fully exploited if the manufacturing of their composites involves polluting processing steps. Unfortunately, there is still a lack of environmetally sustainable processing methods yielding technical fibres of suffic

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Thiraphattaraphun, Linda. "Structure/property relationships in polypropylene nanocomposites." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/structureproperty-relationships-in-polypropylene-nanocomposites(388eafc0-a98e-4a78-be0d-4d647a122d87).html.

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In this work, structure/property relationships in polypropylene (PP) nanocomposites have been investigated for different nanofillers. Nanofillers of modified clay based on montmorillonite (MMT) and multi-wall carbon nanotubes (MWNTs) have been selected and incorporated to the PP matrix as either single nanofillers or hybrid nanofillers. Melt mixing via a twin screw extruder and further moulding by injection moulding have been used to prepare PP nanocomposites. Moreover, the dilution of MWNT masterbatch has been used to prepare PP/MWNT and PP/clay/MWNT nanocomposites. Three types of the PP nano

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Brosi, Justin Keith. "Mechanical Property Evolution of Al-Mg Alloys Following Intermediate Temperature Thermal Exposure." Cleveland, Ohio : Case Western Reserve University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=case1270163761.

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Thesis (Master of Sciences (Engineering))--Case Western Reserve University, 2010<br>Department of Materials Science and Engineering Title from PDF (viewed on 2010-05-25) Includes abstract Includes bibliographical references and appendices Available online via the OhioLINK ETD Center

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Peters, Ashton. "Digital Image Elasto-Tomography: Mechanical Property Reconstruction from Surface Measured Displacement Data." Thesis, University of Canterbury. Department of Mechanical Engineering, 2007. http://hdl.handle.net/10092/2775.

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Interest in elastographic techniques for soft tissue imaging has grown as relevant research continues to indicate a correlation between tissue histology and mechanical stiffness. Digital Image Elasto-Tomography (DIET) presents a novel method for identifying cancerous lesions via a three-dimensional image of elastic properties. Stiffness reconstruction with DIET takes steady-state motion captured with a digital camera array as the input to an elastic property reconstruction algorithm, where finite element methods allow simulation of phantom motion at a range of internal stiffness distributions.

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Edwards, Wendy M. "Microstructural and mechanical property modelling for the processing of Al-Si alloys." Thesis, Loughborough University, 2002. https://dspace.lboro.ac.uk/2134/7754.

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The components of a modem internal combustion engine are required to give extreme reliability over extended periods of operation and none is exposed to more arduous conditions than the piston, especially in the pin boss and crown regions of pistons for diesel engines. The increasing emissions requirements and performance targets demanded of direct injection diesel engines has resulted in steep increases in both specific powers and maximum cylinder pressures. This has in turn lead to greater temperatures and pressures being felt by the piston. The adaptation of the piston design to these increa

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Rong, Zhouwen. "Multiscale modelling of defect behaviour and mechanical property effects in irradiated metals." Thesis, University of Liverpool, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.406831.

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36

Nolte, Adam John. "Fundamental studies of polyelectrolyte multilayer films : optical, mechanical, and lithographic property control." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/38516.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2007.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Includes bibliographical references (p. 207-225).<br>Polyelectrolyte multilayers (PEMs) are a versatile type of thin film that is created via layer-by-layer assembly of positively and negatively charged polymers from aqueous solutions. Precise control of the PEM thickness, chemical functionality, and molecular architecture is made possible

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Wang, Hsuan-Ho, and 王炫和. "Mechanical Property Measurement of Biomolecules." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/14602282405342265122.

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碩士<br>國立交通大學<br>機械工程學系<br>98<br>In this study, we developed a device to measure mechanical property of biomolecules. It mainly utilized the micropipette and AFM probe for the measurement, and it can stretch the cell from its initial length to the ultimate break point. We calculated the stretching force from the bending deflection of the AFM probe. Myotubes are the objects in this study. Myotubes are the basic unit cell in muscular structure and are derived of myoblast differentiation. The measurement and understanding of myotube strength is the foundation from which to investigate the mechanic

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Zhang, Zong-Qi, and 張宗祺. "Study On Mechanical Property of Heel Pad." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/06668571820230750405.

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Yen-Ming, Peng. "Preparation and Mechanical Property of Carbon Nanotube Bundles." 2006. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0016-1303200709322392.

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YEN, CHENG CHUN, and 鄭鈞晏. "Electrical and Mechanical Property of ABS/graphite Nanocomposites." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/z42p7r.

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碩士<br>國立臺北科技大學<br>化學工程研究所<br>100<br>Polymeric materials are used in many fields. Polymer nanocomposites can have more applications by adding different types of nanoparticles to the polymer matrix. For example, nanographite platelets(NGP) are common materials that are added to polymer matrices to increase the electrical conductivity of composites due to their lower price. Adding conductive fillers into a matrix can change a polymer from an insulator into a semiconductor. These conductive polymer composites can be used in electromagnetic interference applications. As well as the conductive prope

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Peng, Yen-Ming, and 彭彥銘. "Preparation and Mechanical Property of Carbon Nanotube Bundles." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/96354938341424701610.

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碩士<br>國立清華大學<br>材料科學工程學系<br>94<br>In the past decade, there have been a lot of progress in the research of carbon materials. The discovery of fullerenes has given us a whole new insight into carbon materials. Furthermore, since the carbon nanotubes (CNTs) were discovered by Iijima in 1991, many potential applications have been proposed for carbon nanotubes, including electron transport, high-strength composites, energy storage, sensors, field emission displays, nanometer-sized semiconductor devices, probes, and drug release. Some of these applications have now been realized in commercial pr

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Chen, wei-shen, and 陳威伸. "Extraction of Mechanical Property Parameters Using Asymmetrical Structures." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/23717400810481936915.

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碩士<br>東南技術學院<br>機電整合研究所<br>95<br>ABSTRACT This research investigated the dynamics characteristics of symmetrical and asymmetrical structures, by combining the finite element analysis and modal testing results, and then used an optimization scheme to extract the mechanical properties of the structures under test. With the help of experimental modal testing and finite element analysis, two sets of natural frequencies and mode shapes of the structures could be obtained. Integrating both sets of natural frequencies into an optimization procedure and utilizing the ANSYS software to perform analysi

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Shimpi, Nilesh Nathu. "Mechanical testing and numerical simulation of mechanical structure-property relationship of silica aerogel." 2005. http://digital.library.okstate.edu/etd/umi-okstate-1518.pdf.

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General, Michael. "Microstructural and Mechanical Property Changes in Ion Irradiated Tunsgten." Thesis, 2013. http://hdl.handle.net/1969.1/149365.

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Sustainable fusion power is within reach; however, more research is needed in the field of material science and engineering. One critical component of a fusion reactor is the plasma facing material. Very little literature exists on the sustainability of tungsten as a plasma facing material (PFM). During operation, PFM must withstand harsh conditions with combined effects from high temperature, mechanical stress, irradiation, transmutation, and the production of hydrogen (H) and helium (He) from nuclear reactions. Therefore, this thesis will focus on co-implantation of H and He into tungsten

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LI, YU-WEN, and 李裕文. "The castability and mechanical property of A206 aluminum alloy." Thesis, 1988. http://ndltd.ncl.edu.tw/handle/99320465555648513229.

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Kuo, Yu-Hao, and 郭育豪. "Mechanical Property Control of Heavy Section Ductile Cast Irons." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/nvq6mq.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>105<br>The primary purposes of this research are two folds: (1) To investigate the effect of Ni on the mechanical properties (tensile strength, yield strength, elongation, hardness, and low-temperature impact value) and microstructures (nodularity, nodule counts and percent pearlite) of heavy-section ductile iron. Based on the experimental results, multiple regression analyses were performed to correlate the mechanical properties with chemical composition and microstructure. (2) To establish the optimal conditions for the production of ductile cast iron inserts for

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Cho-LinWang and 王焯林. "Mechanical Property of LARS Artificial Ligament after Tissue Ingrowth." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/39896365895120074085.

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Yu, Chung-Han, and 游京翰. "Measure Mechanical Property of Carbon Nanocoils by AFM Manipulator." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/36820180875545981997.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>96<br>In this paper, we researched on the carbon nanocoil’s mechanical property by AFM nanomanipulator. The nanocoil were fabricated by CVD with Fe-Sn as catalyst. The Au electrodes were fabricated on SiO2 by photolithography. The gap between electrodes is around 10μm. Then the nanocoils were aligned by electrophoresis. By Au clustering, the nanocoil were fixed on the surface of wafer. As the sample completed, the coil were imaged and manipulated by AFM manipulator. During the experiment, the difference of lateral force can be recorded. By analyzing the change of la

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Hu, You-Wen, and 胡友文. "A Study on the Mechanical Property ofShape Memory Alloy." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/59309647196687208440.

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碩士<br>大同大學<br>機械工程學系(所)<br>94<br>The shape memory effect of the shape memory alloy (SMA) was driven by its phase transformation caused by temperature change. Previous researches show that the SMA present different stiffness and loading ability under different operating temperature. This study makes assumption as the stiffness of SMA is a function of its temperature. A cantilever beam with SMA was heated by electric current. Then, the load and deflection under different operation temperature of SMA cantilever beam were measured. The results were used to estimate the elastic modulus (E) of the S

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Chen, Ke-yue, and 陳克岳. "Measurement and Analysis on Mechanical Property of Heel Pad." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/08969469526313109089.

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Abstract:

碩士<br>臺灣大學<br>應用力學研究所<br>95<br>This research is to develop a set of mechanical model which can simulate heel pad effectively, and perform the stress relaxation experiment to get the coefficients of constitutive law using the optimization method. Then we get the EDR (energy dissipation ratio) of heel pad by mechanical model, and compare to the experiment result of the non-invasive measurement by the ultrasound . The experiment subjects are two young and non-diabetes men .First we perform the stress relaxation and EDR measurements on them, then compare the hysteresis curves and energy dissipati

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