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。
Presented herein is an investigation into the buckling behavior of single-walled carbon nanotubes (SWCNTs) with defects via molecular dynamics (MD) simulations. Various kinds of defects including point defects (monovacancy, bivacancies, and line) and topological defect such as Stone–Wales (SW) are considered. The MD s…
We solve the equations governing light propagation in a negative-index material with embedded nonlinearly saturable gain material using a frequency-domain model. We show that available gain materials can lead to complete loss compensation only if they are located in the regions where the field enhancement is maximal.…
Problem statement: Silver/Montmorillonite/Chitosan Bionanocomposites (Ag/MMT/Cts BNCs) have been synthesized by UV-irradiation reduction method in the absence of any reducing agent or heat treatment which is used to antibacterial application and medical devices. Approach: MMT, Chitosan and AgNO 3 were used as a solid…
Abstract Super‐paramagnetic iron oxide nanoparticles (SPIONs) are recognized as powerful biocompatible materials for use in various biomedical applications, such as drug delivery, magnetic‐resonance imaging, cell/protein separation, hyperthermia and transfection. This study investigates the impact of high concentratio…
The main steps of the evolution in studies related to the design and investigation of the structure and properties of thermotropic LC polymers containing mesogenic groups are discussed. The principal attention is focused on the results of experiments performed at the Laboratory of Chemical Transformations of Polymers,…
The dispersion in air of nanoparticles of different sizes, materials and morphologies with controlled agglomeration involving aerosol delivery for in vivo and in vitro studies is one of the most difficult challenges in the field of nanoparticle toxicology. We describe here a nanoparticle dispersion system using an ele…
A 90 nm embedded PCM technology is presented. For the first time the storage element has been integrated in a 6-ML advanced CMOS platform, exploiting the LV n-mos device as cell selector. Very good cell working window and intrinsic reliability both for storage element and selector MOS have been proven. The full integr…
BACKGROUND: Nanomaterials are at the leading edge of the rapidly developing field of nanotechnology. Magnetic nanoparticles for cancer therapy and diagnosis have been developed on the basis of their unique physico-chemical properties not present in other materials. Their versatility is widely exploited in such diverse…
In the last few years, a rapid development has been achieved in a subject area, so called optical transformation, which is based on the property of metric invariance in Maxwell's equations. Optical transformation, also known as transformation optics, allows metamaterials to be tailor-made according to practical needs.…
Recent efforts in developing spintronic and magneto-optoelectric material for applications have relied on the use of magnetic semiconductors doped with transition metals and have met with limited success. Using a fresh synthesis approach using alkali ions we demonstrate that alkali doped zinc oxide can provide high te…
This study deals with some results on morphology, miscibility and mechanical properties for polymethyl methacrylate/polycarbonate (PMMA/PC) polymer blends prepared by solution casting method at different concentration between 0 and 100 wt%. Dynamic storage modulus and tan δ were measured in a temperature range from 30…
The recent literature on simple gas-phase reactions involving CO, O 2 , H 2 , H 2 O and CO 2 catalysed by gold is surveyed and mechanisms derived from the literature are presented and analysed. They provide a template by which further results can be assessed and additional necessary study stimulated. Ways in which the…
Abstract Precise measurement of the content and the layer charge of illite and smectite is an important aspect of the mineralogical calibration of geophysical well logs and of the evaluation of mechanical and chemical properties of sedimentary rocks. Ate chnique for obtaining such measurements was developed during min…
Net erosion and deposition of tungsten (W) in the ASDEX Upgrade divertor were determined after the 2007 campaign by using thin W marker stripes. ASDEX Upgrade had full-W plasma-facing components during this campaign. The inner divertor and the roof baffle were net W deposition areas with a maximum deposition of about…
We investigate the dynamics of a glass-forming 2D colloidal mixture and show the existence of collective motions of the particles. We introduce a mean square displacement MSD with respect to the nearest neighbors which shows remarkable deviations from the usual MSD quantifying the individual motion of our particles. C…
Abstract Polymer matrix composites based on brominated epoxy as the matrix and aluminum nitride (AlN) particles as the filler were prepared. The influences of the size, content, and size distribution of AlN on the thermomechanical properties, including the glass‐transition temperature ( T g ), coefficient of thermal e…
This research investigated the utilization of sorghum starch and chitosan as basic material for preparation of biodegradble plastic. The optimum conditions for the formation of biodegradble plastic and the effect of starch-chitosan formulation on mechanical properties of the biodegradable plastic were studied. The exp…
Te42As36Ge10Si12 chalcogenide composition was prepared by conventional melt-quenching. The ac conductivity and the dielectric properties were carried out in the frequency range 0.5 10 3 -4 10 6 Hz and temperature range 300-423 K. The analysis of the experimental results of the frequency dependence of ac conductivity a…
Mechanisms proposed for the gold-catalysed Water-Gas Shift (WGS) are critically reviewed, and a complete reaction set and cycle involving activation of water on reduced support sites is considered; however, a modified route to CO2 formation by thermal decomposition of a carboxyl species results in a simpler and theref…
Organic-inorganic nanoporous silica sol-gel glasses constitute the ideal support for protein bio-encapsulation and to study the different factors influencing the protein folding process in a crowded environment. Due to the facile silica surface modifications with desired Si-substituted organic groups from organosilane…