Academic literature on the topic 'Elasticity- Nanostructure'

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Journal articles on the topic "Elasticity- Nanostructure"

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M. Roy, Arunabha. "Evolution of Martensitic Nanostructure in NiAl Alloys: Tip Splitting and Bending." Material Science Research India 17, SpecialIssue1 (2020): 03–06. http://dx.doi.org/10.13005/msri.17.special-issue1.02.

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A phase-field (PF) model for the phase transformation (PT) between austenite and martensite and twinning between two martensite is presented where PT is described by a single order parameter. Such a description helps us to obtain the analytical solution of interface energetics and kinetics. PF-elasticity problems are solved for cubic-to-tetragonal PT in NiAl. The stress and temperature-induced PT and corresponding twinning and growth of the martensitic phase inside a nanocrystal are simulated. It reproduces nontrivial experimentally observed nanostructure such as splitting and bending of marte
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Chowdhury, R., S. Adhikari, and F. Scarpa. "Elasticity and piezoelectricity of zinc oxide nanostructure." Physica E: Low-dimensional Systems and Nanostructures 42, no. 8 (2010): 2036–40. http://dx.doi.org/10.1016/j.physe.2010.03.018.

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ISLAM, Z. M., P. JIA, and C. W. LIM. "TORSIONAL WAVE PROPAGATION AND VIBRATION OF CIRCULAR NANOSTRUCTURES BASED ON NONLOCAL ELASTICITY THEORY." International Journal of Applied Mechanics 06, no. 02 (2014): 1450011. http://dx.doi.org/10.1142/s1758825114500112.

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The presence of size effects represented by a small nanoscale on torsional wave propagation properties of circular nanostructure, such as nanoshafts, nanorods and nanotubes, is investigated. Based on the nonlocal elasticity theory, the dynamic equation of motion for the structure is formulated. By using the derived equation, simple analytical solutions for the relation between wavenumber and frequency via the differential nonlocal constitutive relation and the numerical solutions for a discrete nonlocal model via the integral nonlocal constitutive relation have been obtained. This results not
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Dindarloo, Mohammad Hassan, Li Li, Rossana Dimitri, and Francesco Tornabene. "Nonlocal Elasticity Response of Doubly-Curved Nanoshells." Symmetry 12, no. 3 (2020): 466. http://dx.doi.org/10.3390/sym12030466.

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In this paper, we focus on the bending behavior of isotropic doubly-curved nanoshells based on a high-order shear deformation theory, whose shape functions are selected as an accurate combination of exponential and trigonometric functions instead of the classical polynomial functions. The small-scale effect of the nanostructure is modeled according to the differential law consequent, but is not equivalent to the strain-driven nonlocal integral theory of elasticity equipped with Helmholtz’s averaging kernel. The governing equations of the problem are obtained from the Hamilton’s principle, wher
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Zhang, Y., L. J. Zhuo, and H. S. Zhao. "Determining the effects of surface elasticity and surface stress by measuring the shifts of resonant frequencies." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 469, no. 2159 (2013): 20130449. http://dx.doi.org/10.1098/rspa.2013.0449.

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Both surface elasticity and surface stress can result in changes of resonant frequencies of a micro/nanostructure. There are infinite combinations of surface elasticity and surface stress that can cause the same variation for one resonant frequency. However, as shown in this study, there is only one combination resulting in the same variations for two resonant frequencies, which thus provides an efficient and practical method of determining the effects of both surface elasticity and surface stress other than an atomistic simulation. The errors caused by the different models of surface stress a
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Elbourne, Aaron, James Chapman, Amy Gelmi, Daniel Cozzolino, Russell J. Crawford, and Vi Khanh Truong. "Bacterial-nanostructure interactions: The role of cell elasticity and adhesion forces." Journal of Colloid and Interface Science 546 (June 2019): 192–210. http://dx.doi.org/10.1016/j.jcis.2019.03.050.

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Tamm, Aile, Tauno Kahro, Helle-Mai Piirsoo, and Taivo Jõgiaas. "Atomic-Layer-Deposition-Made Very Thin Layer of Al2O3, Improves the Young’s Modulus of Graphene." Applied Sciences 12, no. 5 (2022): 2491. http://dx.doi.org/10.3390/app12052491.

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Nanostructures with graphene make them highly promising for nanoelectronics, memristor devices, nanosensors and electrodes for energy storage. In some devices the mechanical properties of graphene are important. Therefore, nanoindentation has been used to measure the mechanical properties of polycrystalline graphene in a nanostructure containing metal oxide and graphene. In this study the graphene was transferred, prior to the deposition of the metal oxide overlayers, to the Si/SiO2 substrate were SiO2 thickness was 300 nm. The atomic layer deposition (ALD) process for making a very thin film
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Ivanova, Elena P., Denver P. Linklater, Marco Werner, et al. "The multi-faceted mechano-bactericidal mechanism of nanostructured surfaces." Proceedings of the National Academy of Sciences 117, no. 23 (2020): 12598–605. http://dx.doi.org/10.1073/pnas.1916680117.

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The mechano-bactericidal activity of nanostructured surfaces has become the focus of intensive research toward the development of a new generation of antibacterial surfaces, particularly in the current era of emerging antibiotic resistance. This work demonstrates the effects of an incremental increase of nanopillar height on nanostructure-induced bacterial cell death. We propose that the mechanical lysis of bacterial cells can be influenced by the degree of elasticity and clustering of highly ordered silicon nanopillar arrays. Herein, silicon nanopillar arrays with diameter 35 nm, periodicity
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Taghvaei, Mohammad Mahdi, Hossein Mostaan, Mahdi Rafiei, Hamid Reza Bakhsheshi-Rad, and Filippo Berto. "Nanoscale Tribological Properties of Nanostructure Fe3Al and (Fe,Ti)3Al Compounds Fabricated by Spark Plasma Sintering Method." Metals 12, no. 7 (2022): 1077. http://dx.doi.org/10.3390/met12071077.

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Nanostructured powder particles of Fe3Al and (Fe,Ti)3Al phases were produced using mechanical alloying. These intermetallic phases with a nearly complete density were consolidated by spark plasma sintering. The mechanical properties of the bulk samples, i.e., elasticity modulus, hardness, and plasticity index, and also their tribological behavior were investigated using nanoindentation and nano-scratch tests. It was found that both Fe3Al and (Fe,Ti)3Al phases can be synthesized after 30 h of high-energy ball milling. In addition, no phase evolution was observed after spark plasma sintering. An
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Hashemzadeh, Allahverdi, Ghorbani, et al. "Gold Nanowires/Fibrin Nanostructure as Microfluidics Platforms for Enhancing Stem Cell Differentiation: Bio-AFM Study." Micromachines 11, no. 1 (2019): 50. http://dx.doi.org/10.3390/mi11010050.

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Organ-on-a-chip technology has gained great interest in recent years given its ability to control the spatio-temporal microenvironments of cells and tissues precisely. While physical parameters of the respective niche such as microchannel network sizes, geometric features, flow rates, and shear forces, as well as oxygen tension and concentration gradients, have been optimized for stem cell cultures, little has been done to improve cell-matrix interactions in microphysiological systems. Specifically, detailed research on the effect of matrix elasticity and extracellular matrix (ECM) nanotopogra
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Dissertations / Theses on the topic "Elasticity- Nanostructure"

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Abidi, Sonia. "Matériaux composites à haute tenue thermique : influence de la micro-nanostructure sur les transferts moléculaires, électroniques et thermiques." Thesis, Toulon, 2014. http://www.theses.fr/2014TOUL0019/document.

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Les matériaux de protection incendie sont largement utilisés pour assurer la sécurité des usagers des infrastructures. Les normes de protection incendie évoluant régulièrement, les matériaux doivent être de plus en plus performants. Ceux-ci sont généralement des mortiers constitués d’oxydes réfractaires et isolants. L’objectif de ce travail est de mettre au point un composite coupe-feu 4 h applicable par projection mais également de déterminer ses propriétés thermiques et mécaniques.Dans une première partie, cette étude reprend les différentes étapes de l’élaboration d’un matériau de protectio
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Liu, Kailang. "Fabrication and modeling of SiGe Nanostructures Driven by Hetero-epitaxial Elasticity." Thesis, Ecole centrale de Marseille, 2016. http://www.theses.fr/2016ECDM0014/document.

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Nous étudions ici l’heteroepitaxie du silicium-germanium (SiGe), un système qui est couramment considéré comme le stéréotype de l’´épitaxie des semi-conducteurs. Bien que ce système ait déjà attiré une attention considérable en raison de ses applications pour l’ingénierie des bandes dans l’industrie microélectronique, le défi majeur du développement de nouveaux dispositifs à base de SiGe reste la croissance épitaxiale contrôlable des nanostructures auto-assemblées. Il est bien connu que SiGe suit un mode de croissance de Stranski-Krastanov, qui passe par la croissance de couches bidimensionnel
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Duff, Richard A. "Determination of bulk mechanical properties of nanostructures from molecular dynamic simulation." Thesis, Monterey, California. Naval Postgraduate School, 2003. http://hdl.handle.net/10945/994.

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Approved for public release; distribution is unlimited<br>Determining bulk mechanical properties from microscopic forces has become important in the light of utilizing nano-scale systems. The molecular dynamics model was used to determine the modulus of elasticity and shear modulus of pure metallic micro lattice structures. Preliminary results indicate that the modulii of elasticity is determined to within 15% accuracy for 5 different metals of 500-atom structures when compared to the experiment values of bulk materials. Furthermore the elastic modulus for copper structures was computed with d
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Deplace, Fanny. "Waterborne nanostructured adhesives." Paris 6, 2008. http://www.theses.fr/2008PA066035.

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Nous avons étudié les propriétés d’adhésifs préparés à partir de particules de latex nanostructurées. Une méthodologie basée sur deux critères rhéologiques a été proposée pour optimiser les performances adhésives. Elle nous a permis d’identifier des stratégies applicables dans le cas particulier de PSA préparés à partir de particules de latex ayant une morphologie cœur-écorce. Une stratégie intéressante est l’activation d’une réaction de réticulation interparticule pendant le séchage du latex. Nous avons montré l’effet remarquable de cette réaction de réticulation sur les propriétés en grandes
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BOIOLI, FRANCESCA. "Dislocation modelling in realistic Si-Ge nanostructures." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2013. http://hdl.handle.net/10281/40115.

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SiGe heterostructures have gained a lot of interests in view of developing devices integrated into the main-stream Silicon technology and also from a scientific point of view as a prototypical system to understand the properties of more complex systems, such as III-V semiconductors. Si-Ge epitaxial structures, as well as other mismatched heteroepitaxial materials, have a high potential to improve the state-of-the-art of Si devices, thanks to the fact that the strain modifies the band structures of this material class, opening new possibility of band-gap engineering. Since the nineties, the d
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Golushko, Ivan. "Micro- et nanostructures biologiques tubulaires : Mécanismes physiques de l'auto-assemblage et du fonctionnement." Thesis, Montpellier, 2018. http://www.theses.fr/2018MONTS098/document.

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Les méthodes classiques de physique de l'état solide telles que la diffraction des rayons X et la microscopie électronique ont permis la compréhension de la structure des membranes cellulaires. Aujourd'hui, leur composition et structure étant bien connues, les recherches se concentrent sur les processus actifs des membranes. Des processus tels que l'endocytose impliquent des modifications substantielles de la forme des membranes lipidiques, réalisées par des protéines induisant la courbure membranaire. L'une des méthodes expérimentales parmi les plus populaires est dite « TLM-pulling », où la
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Dingreville, Remi. "Modeling and Characterization of the Elastic Behavior of Interfaces in Nanostructured Materials: From an Atomistic Description to a Continuum Approach." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/19776.

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Thesis (Ph.D)--Mechanical Engineering, Georgia Institute of Technology, 2008.<br>Committee Chair: Jianmin Qu; Committee Member: David McDowell; Committee Member: Elisa Riedo; Committee Member: Min Zhou; Committee Member: Mo Li.
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ZEN, HELOISA A. "Desenvolvimento de elastômeros fluorados multifuncionais baseados em nanocompósitos." reponame:Repositório Institucional do IPEN, 2015. http://repositorio.ipen.br:8080/xmlui/handle/123456789/23741.

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Submitted by Claudinei Pracidelli (cpracide@ipen.br) on 2015-06-11T18:00:50Z No. of bitstreams: 0<br>Made available in DSpace on 2015-06-11T18:00:50Z (GMT). No. of bitstreams: 0<br>Tese (Doutorado em Tecnologia Nuclear)<br>IPEN/T<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
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Gupta, Prakhar. "Elasticity of one-dimensional nanostructures - a multiscale approach." Thesis, 2018. http://localhost:8080/xmlui/handle/12345678/7621.

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Ben, Xue. "Opto-mechanical coupling effects on metallic nanostructures." Thesis, 2015. https://hdl.handle.net/2144/16036.

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Surface plasmon is the quantized collective oscillation of the free electron gas in a metallic material. By coupling surface plasmons with photons in different nanostructures, researchers have found surface plasmon polaritons (SPP) and localized surface plasmon resonance (LSPR), which are widely adopted in biosensing, single molecule sensing and detection via surface enhanced raman scattering (SERS), photothermal ablation treatments for cancer, optical tagging and detection, strain sensing, metamaterials, and other applications. The overall objective of this dissertation is to investigate b
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Books on the topic "Elasticity- Nanostructure"

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1933-, Fenster Saul K., ed. Advanced strength and applied elasticity. 4th ed. Prentice Hall PTR, 2003.

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1933-, Fenster Saul K., ed. Advanced strength and applied elasticity. 3rd ed. Prentice Hall, 1995.

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Ugural, A. C. Advanced strength and applied elasticity. 2nd ed. Elsevier, 1987.

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Djunisbekov, T. M. Stress relaxation in viscoelastic materials. Science Publishers, 2003.

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Ieşan, Dorin. Thermoelastic deformations. Kluwer Academic, 1996.

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Advanced Strength and Applied Elasticity: 2nd SI Edition. 2nd ed. Longman Higher Education, 1992.

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François, Dominique, André Pineau, and André Zaoui. Mechanical Behaviour of Materials: Volume I: Elasticity and Plasticity (Solid Mechanics and Its Applications). Springer, 1998.

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Junisbekov, T. M., V. N. Kestelman, and N. I. Malinin. Stress Relaxation in Viscoelastic Materials. Science Publishers, 2002.

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Iesan, D., and A. Scalia. Thermoelastic Deformations (Solid Mechanics and Its Applications). Springer, 1996.

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Scalia, Antonio, and D. Iesan. Thermoelastic Deformations. Springer, 2010.

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Book chapters on the topic "Elasticity- Nanostructure"

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Gopalakrishnan, Srinivasan, and Saggam Narendar. "Theory of Nonlocal Elasticity." In Wave Propagation in Nanostructures. Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-01032-8_4.

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Malikan, Mohammad, and Victor A. Eremeyev. "Free Vibration of Flexomagnetic Nanostructured Tubes Based on Stress-driven Nonlocal Elasticity." In Analysis of Shells, Plates, and Beams. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-47491-1_12.

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Moreira de Sousa, José. "Nanostructures Failures and Fully Atomistic Molecular Dynamics Simulations." In Elasticity of Materials [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.100331.

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Nowadays, the concern about the limitations of space and natural resources has driven the motivation for the development of increasingly smaller, more efficient, and energy-saving electromechanical devices. Since the revolution of “microchips”, during the second half of the twentieth century, besides the production of microcomputers, it has been possible to develop new technologies in the areas of mechanization, transportation, telecommunications, among others. However, much room for significant improvements in factors as shorter computational processing time, lower energy consumption in the same kind of work, more efficiency in energy storage, more reliable sensors, and better miniaturization of electronic devices. In particular, nanotechnology based on carbon has received continuous attention in the world’s scientific scenario. The riches found in different physical properties of the nanostructures as, carbon nanotubes (CNTs), graphene, and other exotic allotropic forms deriving from carbon. Thus, through classical molecular dynamics (CMD) methods with the use of reactive interatomic potentials reactive force field (ReaxFF), the scientific research conducted through this chapter aims to study the nanostructural, dynamic and elastic properties of nanostructured systems such as graphene single layer and conventional carbon nanotube (CNTs).
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Ebrahimi, Farzad, and Ali Dabbagh. "An Introduction to Nonlocal Elasticity Theories and Scale-Dependent Analysis in Nanostructures." In Wave Propagation Analysis of Smart Nanostructures. CRC Press, 2019. http://dx.doi.org/10.1201/9780429279225-2.

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Barretta, Raffaele, Francesco Fabbrocino, Francesco Marotti de Sciarra, Raimondo Luciano, Francesco Giuseppe Morabito, and Giuseppe Ruta. "Modulated Linear Dynamics of Functionally Graded Nanobeams With Nonlocal and Gradient Elasticity." In Experimental Characterization, Predictive Mechanical and Thermal Modeling of Nanostructures and their Polymer Composites. Elsevier, 2018. http://dx.doi.org/10.1016/b978-0-323-48061-1.00009-9.

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Conference papers on the topic "Elasticity- Nanostructure"

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Gurmendi, U., J. I. Eguiazabal, and J. Nazabal. "Structure and Properties of Nanocomposites With a Poly(Ethylene Terephthalate) Matrix." In ASME 2006 Multifunctional Nanocomposites International Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/mn2006-17087.

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Polymer nanocomposites based on poly(ethylene terephthalate) PET and with an intercalated and fairly dispersed nanostructure have been obtained in the melt state using a twin screw extruder. The intercalation and dispersion levels as well as the mechanical properties were studied varying the chemical nature and amount of the organic modification of the clay as well as the clay content. The intercalation level of PET into the organoclay galleries was measured by the increase in the interlayer distance upon mixing. The surfactant content did not influence the intercalation level but an interacti
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Łepkowski, S. P., J. A. Majewski, and G. Jurczak. "Effects of Nonlinear Elasticity in Nitride Semiconductors and their Nanostructures." In PHYSICS OF SEMICONDUCTORS: 28th International Conference on the Physics of Semiconductors - ICPS 2006. AIP, 2007. http://dx.doi.org/10.1063/1.2729909.

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Zarrin, Tahira, Rahul Ribeiro, Sumanth Banda, Zoubeida Ounaies, and Hong Liang. "Effect of SWCNT on Tribological Behavior of Polymeric Nanocomposite." In STLE/ASME 2008 International Joint Tribology Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/ijtc2008-71282.

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The nanoscale structure of single-walled carbon nanotubes (SWCNTs) has unique properties. These nanostructured additives can induce unusual characteristic in many polymer matrix. In one of our recent experiments, it was found that when adding SWCNTs into a polyimide (PI) matrix, friction becomes a function of the concentration of the additive. In this research, we analyze the behavior of the SWCNTs-PI nano-composite using an approximation approach. We report that the frictional behavior of the nanocomposite is dominated by the elastic and plastic deformation through randomly dispersed SWCNTs u
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van Rooyen, Isabel J., Jan H. Neethling, and Johannes Mahlangu. "Influence of Temperature on the Micro- and Nanostructures of Experimental PBMR TRISO Coated Particles: A Comparative Study." In Fourth International Topical Meeting on High Temperature Reactor Technology. ASMEDC, 2008. http://dx.doi.org/10.1115/htr2008-58189.

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The PBMR fuel consists of TRISO Coated Particles (CPs) in a graphite matrix. The three layer system, IPyC-SiC-OPyC, forms the primary barrier to fission product release, with the SiC layer acting as the main pressure boundary of the particle. The containment of fission products inside the CPs is however a function of the operating temperature and microstructure of the SiC layer. During accident conditions, the CPs will reach higher temperatures than normal operating conditions. The Fuel Design department of PBMR is therefore investigating various characteristics of the SiC layer, especially na
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Kuo, M. K., T. R. Lin, and K. B. Hong. "Size and Piezoelectric Effects on Optical Properties of Self-Assembled InGaAs/GaAs Quantum Dots." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-15776.

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Size effects on optical properties of self-assembled quantum dots are analyzed based on the theories of linear elasticity and of strain-dependent k-p with the aid of finite element analysis. The quantum dot is made of InGaAs with truncated pyramidal shape on GaAs substrate. The three-dimensional steady-state effective-mass Schro¨dinger equation is adopted to find confined energy levels as well as wave functions both for electrons and holes of the quantum-dot nanostructures. Strain-induced as well as piezoelectric effects are taken into account in the carrier confinement potential of Schro¨ding
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