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。
In einem Arbeitsgang: Mesoporöse Kalium-γ-aluminiumoxid-Superbasen, die sich durch eine hohe Basestärke von 27.0 und eine gut ausgeprägte mesoporöse Struktur auszeichnen, sind effiziente Katalysatoren in der Isomerisierung von 1-Hexen. Ihre einfache Synthese in einem Eintopfprozess beruht auf der flexiblen Verwendung…
Cu-doped ZnSe single-crystal one-dimensional (1-D) nanostructures were fabricated via thermal treatment of the as-synthesized corresponding precursor, which was prepared through a ternary solution-based method. The evident phase transformation suggests that doping with Cu 2+ favors the formation of the cubic phase ZnS…
BACKGROUND: Isolated lung perfusion (ILP) with free and a novel liposomal-encapsulated doxorubicin (Liporubicin, CT Sciences SA, Lausanne, Switzerland) was compared with respect to drug uptake and distribution in rat lungs bearing a sarcomatous tumor. METHODS: A single sarcomatous tumor was generated in the left lung…
Abstract The graft copolymerization of styrene and methyl methacrylate (MMA) on to deproteinized natural rubber (DPNR) latex was carried out. The effect of monomer concentrations on grafting efficiency, thermal and mechanical properties was studied. The synthesized graft copolymers were characterized by proton nuclear…
We study diffusion-controlled, solvent-mediated self-assembly and dendritic structure formation as anatase TiO 2 is seeded with silver oxides and silver that are formed using silver nitrate (zinc-catalyzed). Anatase TiO 2 nanocolloid solutions are seeded with silver nitrate over a concentration range extending to satu…
In protein crystallography, monodisperse protein samples of high purity are usually required in order to obtain diffraction-quality crystals. Here, crystals were reproducibly grown from a protein sample before its homogeneity had been determined. The sample was obtained after the first attempt to purify a recombinant…
We present a theory of the low-temperature mobility of electrons in a Gaussian heavily doped zinc oxide surface quantum well (ZnO SFQW), taking into account both surface impurity and surface roughness scattering. The theory also includes strong confinement due to spontaneous polarization charges on the surface of ZnO.…
Heavy-atom derivatization is routinely used in protein structure determination and is thus of critical importance in structural biology. In order to replace the current trial-and-error heavy-atom derivative screening with a knowledge-based rational derivative-selection method, the reactivity of more than 40 heavy-atom…
Abstract A series of ethylene‐vinyl acetate (EVA) copolymer films have been prepared with different compositions viz. 2, 4, 6, and 8 wt % layered double hydroxide (LDH) nanoparticles by solution intercalation method. These solution‐casted EVA/LDH nanocomposite films were dried and characterized by differential scannin…
Abstract A wide range of solvents have been examined to find their effect on radiation‐induced grafting of 4‐vinyl pyridine onto fluorinated ethylene propylene copolymer by simultaneous irradiation technique. The effect of solvent on percentage of grafting has been monitored by varying monomer concentration and total…
We study the superconducting correlations induced in graphene when it is placed between two superconductors, focusing in particular on the supercurrents supported by the 2D system. For this purpose we make use of a formalism placing the emphasis on the many-body aspects of the problem, with the aim of investigating th…
We introduce a novel concept of an inside-out (or inverse) cloak for electromagnetic waves based on the coordinate transformation of Maxwell's equations. This concept can be employed for creating absorbing non-reflecting media as matching layers in numerical simulations. In contrast to the commonly used perfectly matc…
We detail the joint concept generation and embodiment development by HRL and GMR&D of shape memory polymer (SMP) based reversible-on-demand attachments. In this initial study of active material enabled reversible-on-demand attachments, our primary focus was on hook-and-loop type fasteners. The approach followed, in br…
We perform a systematic examination on the dependence of the calculated nuclear magnetic shielding constants on the chosen geometry for a selective set of density functional methods of B3LYP, PBE0, and OPBE. We find that the OPBE exchange-correlation functional performs remarkably well when either the optimized geomet…
A two-stage hydrothermal process was developed for the synthesis of highly dispersed Au colloids. In the first stage, a novel glucose-derived polymer template was prepared by the hydrothermal treatment of glucose at 160 degrees C. This template was then further used in the next step to synthesize highly dispersed gold…
Abstract A series of novel phenylethynyl‐endcapped polyimide oligomers were prepared by polycondensation of an aromatic diamine mixture of 1,3‐bis(4‐aminophenoxy) benzene (1,3,4‐APB) and 3,4′‐oxydianiline (3,4′‐ODA) with different aromatic dianhydrides including 3,3′,4,4′‐biphenyltetracarboxylic dianhydride (BPDA), 4,…
Abstract Changes in the molecular orientation, melting behavior, and percent crystallinity of the individual components in a fibrous blend of isotactic polypropylene (iPP) and high‐density polyethylene (HDPE) that occur during the melt extrusion process were examined using wide‐angle X‐ray diffraction (WAXD) and diffe…
Modeling structural variability is critical for understanding protein function and for modeling reliable targets for in silico docking experiments. Because of the time-intensive nature of manual X-ray crystallographic refinement, automated refinement methods that thoroughly explore conformational space are essential f…
Auxosporulation of the freshwater epipelic diatom Pinnularia nodosa (Ehrenb.) W. Sm. was studied in a clonal culture. Interphase cells possessed two chloroplasts with invaginated pyrenoids. The nucleus contained a single small body of heterochromatin at one end, also visible during most of meiotic prophase. During aux…
Abstract Effect of silica nanofiller on the deformation response and morphology of low‐ and high‐density polyethylene (HDPE, LDPE) and isotactic polypropylene (PP) modified with fumed silica was investigated. The dynamic‐mechanical thermal spectroscopy, differential scanning calorimetry, optical microscopy, and densit…