Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
We investigate the variation in fracture strength of graphene with temperature, strain rate, and crack length using molecular dynamics (MD) simulations, kinetic analysis of fracture with a nonlinear elastic relation, and the quantized fracture mechanics theory. Young’s modulus does not vary significantly with temperat…
With energy conversion efficiencies in continuous growth, quantum dot sensitized solar cells (QDSCs) are currently under an increasing interest, but there is an absence of a complete model for these devices. Here, we compile the latest developments in this kind of cells in order to attain high efficiency QDSCs, modeli…
Understanding the characteristics of jammed particle packings provides basic insights into the structure and bulk properties of crystals, glasses, and granular media and into selected aspects of biological systems. This review describes the diversity of jammed configurations attainable by frictionless convex nonoverla…
We report on the micro-Raman spectroscopy of monolayer, bilayer, trilayer, and many layers of graphene (graphite) bombarded by low-energy argon ions with different doses. The evolution of peak frequencies, intensities, linewidths, and areas of the main Raman bands of graphene is analyzed as function of the distance be…
We show through an exact numerical solution of the phonon Boltzmann equation that the lattice thermal conductivity of graphene is dominated by contributions from the out-of-plane or flexural phonon modes, previously thought to be negligible. We connect this unexpected result to the anomalously large density of states…
An introduction to the transport properties of graphene combining experimental results and theoretical analysis is presented. In the theoretical description simple intuitive models are used to illustrate important points on the transport properties of graphene. The concept of chirality, stemming from the massless Dira…
This chapter is part of a recent book describing the synthesis, properties, and processing methods of poly(lactic acid) (PLA), an important family of degradable plastics. All the chapters have been written and reviewed from a base of international expert contributors. Chapter 9 devoted to the Crystallization and Therm…
El presente trabajo muestra una posible implementación de la teoría refinada de zigzag en elementos de lámina basados en la teoría de Simo asociada habitualmente con la teoría de láminas deformable por corte de primer orden. La teoría refinada de zigzag permite tratar laminados en forma económica, adicionando sólo dos…
Le travail de thèse est préliminaire à une étude consacrée à l'élaboration et la validation d'une méthodologie permettant de prédire l'avancement des réactions de Maillard lors de la cuisson de la génoise. L'objectif du travail est de développer des outils expérimentaux pour suivre des marqueurs réactionnels et des va…
Manguezais são ecossistemas de transição entre ambientes continental e marinho. Estão amplamente distribuídos ao longo da costa brasileira, sob grande variabilidade de condições climáticas, oceanográficas, geológicas e geomorfológicas. A mineralogia dos solos reflete e interfere nos processos de formação de solos e no…
ADEPT Project: Currently, charging the battery of an electric vehicle (EV) is a time-consuming process because chargers can only draw about as much power from the grid as a hair dryer. APEI is developing an EV charger that can draw as much power as a clothes dryer, which would drastically speed up charging time. APEI'…
International audience
International audience
We study self-similar ultrametric Cantor sets arising from stationary Bratteli diagrams. We prove that such a Cantor set C is bi-Lipschitz embeddable in R[dimH(C)]+1, where [dimH(C)] denotes the integer part of its Hausdorff dimension. We compute this Hausdorff dimension explicitly and show that it is the abscissa of…
Abstract This reaction is a sodium‐mediated coupling of two alkyl halides into a higher order of hydrocarbon and is generally known as the Wurtz synthesis. Analogously, the coupling between an alkyl halide and a Grignard reagent is referred to as the Grignard–Wurtz coupling. It has been reported that the Wurtz synthes…
Abstract The reaction between primary aromatic amines, their salts, orN‐acetyl derivatives with sulfur monochloride either in the presence or absence of an inert solvent to form 1,3,2‐benzothiazathiolium chlorides, known as the Herz compounds or Herz salts, and the reaction is known as the Herz reaction. The study fin…
Abstract The preparation of 4‐methyl‐4‐trichloromethyl cyclohexa‐2,5‐dienone by treatment of p ‐cresol with aluminum chloride in carbon tetrachloride is generally referred to as the Zincke–Suhl reaction. This reaction has been compared with the Friedel–Crafts alkylation. The study finds that BF 3 and SnCl 4 are not ef…
Extended release formulations of recombinant human growth hormone (rhGH) potentially would offer therapeutic advantages. To date, the benefits of a formulation containing crystalline rhGH (including increased protein stability, high protein concentration with low viscosity, and an extended half-life) have remained unr…
This chapter contains sections titled: Smearing of Stiffness Properties (Equivalent Stiffness) Failure Modes of a Stiffened Panel Additional Considerations for Stiffened Panels Exercises References
Abstract The transformation of an acyl chloride into corresponding aldehyde by the hydrogenation in a toluene solution over barium sulfate‐supported palladium is generally referred to as the Rosenmund reduction. It has been reported that the reduction of unsaturated acyl chlorides in some cases result in the overreduc…