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Topic Area: Nanomaterials
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Displaying records 91 to 100 of 151 records.
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91. Multiscale Modeling of Germanium Quantum Dots in Silicon
Topic: Nanomaterials
Published: 12/30/2005
Authors: Vinod K Tewary, David Thomas Read
Abstract: A method is described for multiscale modeling of a quantum dot in a semiconductor containing a free surface. The method is based upon the use of the lattice-statics and continuum Green's functions integrated with classical molecular dynamics. It full ...

92. Multiscale Modeling of Lattice Defects in Si-Ge(001) Quantum Wells
Topic: Nanomaterials
Published: 4/9/2008
Authors: B. Yang, Vinod K Tewary
Abstract: A computationally efficient hybrid Green¿s function (GF) technique is developed for multiscale modeling of lattice defects in a trilayer material system that links seamlessly the length scales from lattice (sub-nanometers) to continuum (bulk). The mo ...

93. Multiscale modeling of point defects in strained silicon
Topic: Nanomaterials
Published: 12/31/2007
Authors: Vinod K Tewary, B. Yang
Abstract: A multiscale Green's function method is described for modeling substitutional point defects and vacancies in strained silicon. The model seamlessly links the length scales from atomistic to macro. The model accounts for the discrete lattice effects, ...

94. Nano-Apatitic Composite Scaffolds for Stem Cell Delivery and Bone Tissue Engineering
Topic: Nanomaterials
Published: 4/15/2012
Authors: Hockin H. K. Xu, Carl George Simon Jr
Abstract: The need for bone defect repair and regeneration arises from trauma, disease, congenital deformity, and tumor resection. Bone fracture occurs to seven million people each year in the United States, and musculoskeletal conditions cost $215 billion ann ...

95. Nanoimprint Lithography and the Role of Viscoelasticity in the Generation of Residual Stress in Model Polystyrene Patterns
Topic: Nanomaterials
Published: 6/10/2008
Authors: Yifu Ding, Hyun W. Ro, Jing N. Zhou, Brian C. Okerberg, Jack F Douglas, Alamgir Karim, Christopher L Soles
Abstract: Understanding polymer deformation during the nanoimprinting process is key to achieve robust polymer nanostructures. Information regarding the process can be extracted from monitoring the decay of the imprinted polymer patterns during thermal anneal ...

96. Nanoparticle assembly, DNA provides control
Topic: Nanomaterials
Published: 5/1/2009
Authors: Vivek M Prabhu, Steven D Hudson
Abstract: No abstract this is a Nature Materials News and Views (less than 800 word) article.

97. Nanoscale mechanics by tomographic contact resonance atomic force microscopy
Topic: Nanomaterials
Published: 1/23/2014
Authors: Gheorghe Stan, Santiago Solares, Bede Pittenger, Natalia Erina, Chanmin Su
Abstract: We report on a quantifiable depth-dependent contact resonance AFM (CR-AFM) measurements over polystyrene-polypropylene (PS-PP) polymer blends to detail surface and sub-surface features in terms of elastic modulus and mechanical dissipation. The depth ...

98. Nanoscale thermal mechanical probe determination of softening transitions in thin polymer films
Topic: Nanomaterials
Published: 11/19/2008
Authors: Jing N. Zhou, Jack F Douglas, Alamgir Karim, Chad R Snyder, Christopher L Soles, Brian Berry
Abstract: We report a quantitative study of softening behavior of glassy polystyrene (PS) films at the 100 nm length scales using nano-thermomechanometry (nano-TM), an emerging scanning probe technique where a highly-doped silicon AFM tip is resistively heated ...

99. Near Edge X-Ray Absorption Fine Structure Spectroscopy Studies of Single-Crystalline V2O5 Nanowire Arrays
Topic: Nanomaterials
Published: 5/7/2009
Authors: Daniel A Fischer, J Velasquez, Cherno Jaye, S Banerjee
Abstract: Near edge X-ray absorption fine structure (NEXAFS) spectroscopy is used to precisely probe the alignment, uniformity in crystal growth direction, and electronic structure of single-crystalline V2O5 nanowire arrays prepared by a cobalt-catalyzed vapor ...

100. Neutron Scattering Study of the Structural Change Induced by Photopolymerization of AOT/D2O/Dodecyl Acrylate Inverse Microemulsions
Topic: Nanomaterials
Published: 11/4/2008
Authors: Kirt Anthony Page, Jolanta Marszalek, John Pojman
Abstract: SANS/USANS measurements were used to determine the structural changes induced by photopolymerization of AOT/D2O/(Dodecyl Acrylate) inverse microemulsion systems.  Scattering profiles were collected for the initial microemulsions and the films resulti ...

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