Randall B. Shirts、Scott R. Burt、Aaron M. Johnson2006-10-24The Journal of Chemical Physics
We examine consequences of the non-Boltzmann nature of probability distributions for one-particle kinetic energy, momentum, and velocity for finite systems of classical hard spheres with constant total energy and nonidentical masses. By comparing two cases, reflecting walls (NVE or microcanonical ensemble) and periodi…
Phase Equilibria and ThermodynamicsMaterial Dynamics and PropertiesAdvanced Physical and Chemical Molecular Interactions
V. Prasad、Stephan A. Koehler、Eric R. Weeks2006-10-24Physical Review Letters
We study the spatially correlated motions of colloidal particles in a quasi-2D system (human serum albumin protein molecules at an air-water interface) for different surface viscosities eta s. We observe a transition in the behavior of the correlated motion, from 2D interface dominated at high eta s to bulk fluid depe…
Material Dynamics and PropertiesBlood properties and coagulationRheology and Fluid Dynamics Studies
J. T. Arantes、Antônio J. R. da Silva、A. Fazzio2006-10-24arXiv
Using {\it ab initio} total energy density-functional theory calculations, we investigate the electronic, structural and magnetic properties of Manganese doped Germanium nanowires. The nanowires have been constructed along the [110] direction and the dangling bonds on the surface have been saturated by hydrogen atoms.…
Materials Science
L. S. Froufe-Perez、M. Yepez、P. A. Mello 等 4 位作者2006-10-24arXiv
We study the statistical properties of wave scattering in a disordered waveguide. The statistical properties of a "building block" of length (delta)L are derived from a potential model and used to find the evolution with length of the expectation value of physical quantities. In the potential model the scattering unit…
Materials Science
Hua Tong、Ying‐Jie Zhu、Lixia Yang 等 5 位作者2006-10-24Angewandte Chemie International Edition
Natural help: PbE nanotubes (E=S, Se, Te; see picture) have been synthesized by a novel biomolecule-assisted method at room temperature. The precursor nanowires self-assembled from nanocrystals synthesized in the presence of cysteine play crucial roles as both the lead source and template in the formation of the nanot…
Quantum Dots Synthesis And Properties2D Materials and ApplicationsChalcogenide Semiconductor Thin Films
Massimiliano Tomasulo、İbrahim Yıldız、Sireesha L. Kaanumalle 等 4 位作者2006-10-24Langmuir
We developed a strategy to switch the luminescence of semiconductor quantum dots with chemical stimulations. It is based on the photoinduced transfer of either energy from CdSe-ZnS core-shell quantum dots to [1,3]oxazine ligands or electrons from the organic to the inorganic components. The organic ligands incorporate…
Advanced biosensing and bioanalysis techniquesQuantum Dots Synthesis And PropertiesNanocluster Synthesis and Applications
Zhijun Lin、Mujin Zhuo、Yanchun Zhou 等 5 位作者2006-10-24Journal of the American Ceramic Society
Direct atomic resolution observations of the layered stacking characteristics of TaC x slabs and Al atomic planes in ternary Ta–Al–C carbides were achieved. Layered ternary Ta–Al–C compounds have diverse structures. A previously unknown Ta 6 AlC 5 carbide, as well as intergrown Ta 2 AlC–Ta 4 AlC 3 and Ta 4 AlC 3 –Ta 6…
MXene and MAX Phase MaterialsIntermetallics and Advanced Alloy PropertiesAdvanced ceramic materials synthesis
G. T. Knoke、A. Niazi、J. M. Hill 等 4 位作者2006-10-24arXiv
A new fcc oxygen defect pyrochlore structure system Lu2V2O_{7-x} with x = 0.40 to 0.65 was synthesized from the known fcc ferromagnetic semiconductor pyrochlore compound Lu2V2O7 which can be written as Lu2V2O6O' with two inequivalent oxygen sites O and O'. Rietveld x-ray diffraction refinements showed significant Lu-V…
Materials ScienceStrongly Correlated Electrons
Udo Schwingenschloegl、Cosima Schuster2006-10-24arXiv
We present results of electronic structure calculations for aluminium contacts of atomic size, based on density functional theory and the local density approximation. Addressing the atomic orbitals at the neck of the nanocontact, we find that the local band structure deviates strongly from bulk fcc aluminium. In parti…
Materials ScienceMesoscale and Nanoscale Physics
R. D. Diehl、W. Setyawan、N. Ferralis 等 6 位作者2006-10-24arXiv
This paper reviews recent progress in the study of rare gas films on quasicrystalline surfaces. The adsorption of Xe on the 10-fold surface of decagonal Al-Ni-Co was studied using low-energy electron diffraction (LEED). The results of these studies prompted the development of a theoretical model, which successfully re…
Materials Science
L. Longstreth-Spoor、J. Trice、H. Garcia 等 5 位作者2006-10-24arXiv
We have investigated the nanostructure and microstructure resulting from ns laser irradiation simultaneous with deposition of Co films on Si(001) substrates. The spatial order and length scales of the resulting nanopatterns and their crystalline microstructure were investigated as a function of film thickness h and la…
Materials Science
Wang Zhang Yuan、Jing Zhi Sun、Yongqiang Dong 等 10 位作者2006-10-24Macromolecules
A group of pyrene-containing poly(phenylacetylene)s (PPAs) with high molecular weight ( M w up to ∼170 000) were synthesized in high yields (up to ∼96%). Simply mixing the polymers and multiwalled carbon nanotubes (MWNTs) in an appropriate solvent afforded the polymer/MWNT hybrids with MWNT contents up to ∼25 wt %, wh…
Organic Electronics and PhotovoltaicsConducting polymers and applicationsCarbon Nanotubes in Composites
Elizabeth A. Sokol、Sara E. Mason、Valentino R. Cooper 等 4 位作者2006-10-24arXiv
The adsorption of Ag$_3$ and Ag$_4$ clusters on the $α$-Al$_2$O$_3$(0001) surface is explored with density functional theory. Within each adsorbed cluster, two different cluster-surface interactions are present. We find that silver clusters simultaneously form both ionic bonds with surface oxygen and intermetallic bon…
cond-mat.otherMaterials Science
S. Attal、Rajagopalan Thiruvengadathan、Oren Regev2006-10-24Analytical Chemistry
Stable, homogeneous, aqueous dispersions of single-walled carbon nanotubes (SWNTs) are prepared by nonspecific physical adsorption of surfactants enhanced by sonication. Upon centrifugation, supernatant and precipitate phases are obtained. The initial weights of the SWNTs and the surfactant are divided between these t…
Nanopore and Nanochannel Transport StudiesCarbon Nanotubes in CompositesElectrochemical Analysis and Applications
Edward Bormashenko、Tamir Stein、Gene Whyman 等 5 位作者2006-10-24Langmuir
A superhydrophobic surface is produced from industrial grade polymer materials. The surface comprises partly disordered triple-scaled arrays of polyvinylidene fluoride (PVDF) globules. An inherently superhydrophobic metallic surface is produced with polymer template. The mathematical model based on the Cassie-Baxter h…
Adhesion, Friction, and Surface InteractionsFluid Dynamics and Thin FilmsSurface Modification and Superhydrophobicity
Jyoti Ranjan Sahu、Claudy Rayan Serrao、Nirat Ray 等 5 位作者2006-10-24Journal of Materials Chemistry
Heavy rare earth chromites of the formula LnCrO3 with Ln = Ho, Er, Yb, Lu and Y are shown to be multiferroic, exhibiting canted antiferromagnetism at low temperatures (TN = 113–140 K) and a ferroelectric transition in the 472–516 K range.
Crystal Structures and PropertiesAdvanced Condensed Matter PhysicsMultiferroics and related materials
Frank W. Zok2006-10-24Journal of the American Ceramic Society
Prospects for revolutionary design of future power generation systems are contingent on the development of durable high‐performance ceramic composites. With recent discoveries in materials and manufacturing concepts, composites with all‐oxide constituents have emerged as leading candidates, especially for components r…
Aluminum Alloys Composites PropertiesMagnesium Oxide Properties and ApplicationsAdvanced ceramic materials synthesis
Laurent J. Michot、Isabelle Bihannic、Solange Maddi 等 7 位作者2006-10-24Proceedings of the National Academy of Sciences
This article demonstrates the occurrence of a true isotropic/nematic transition in colloidal Brownian aqueous suspensions of natural nontronite clay. The liquid-crystalline character is further evidenced by polarized light microscopy and small-angle x-ray scattering experiments in the presence and absence of modest ex…
Material Dynamics and PropertiesSurfactants and Colloidal SystemsLiquid Crystal Research Advancements
Yuhua Zhen、Jing‐Feng Li2006-10-24OpenAlex
Normal sintering of Li‐doped and Li/Ta‐codoped potassium sodium niobate (KNbO 3 –NaNbO 3 , KNN)‐based ceramics was investigated to clarify the optimal sintering condition for densification, microstructure, and electrical properties. It was found that density increased greatly within a narrow temperature range but tend…
Ferroelectric and Piezoelectric MaterialsAcoustic Wave Resonator TechnologiesMicrowave Dielectric Ceramics Synthesis
Kyle Kurpinski、Julia Chu、Craig K. Hashi 等 4 位作者2006-10-24OpenAlex
Mesenchymal stem cells (MSCs) are a potential source for the construction of tissue-engineered vascular grafts. However, how vascular mechanical forces regulate the genetic reprogramming in MSCs is not well understood. Mechanical strain in the vascular wall is anisotropic and mainly in the circumferential direction. W…
3D Printing in Biomedical ResearchElectrospun Nanofibers in Biomedical ApplicationsCellular Mechanics and Interactions