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 this paper, we study nonisothermal two-component (air and vapor) fluid flow through a porous textile medium with phase change, which is described by a degenerate and strongly coupled parabolic system. We prove global existence of weak solutions to the heat-air-vapor system and the positivity/nonnegativity of soluti…
Preparation of polystyrene (PS)-montmorillonite nanocomposites was carried out in 3 steps: purification and determination of the cation exchange capacity (CEC) of clay, synthesis of organoclay, and preparation of nanocomposites. In organoclay synthesis, 3 types of surfactants, long-chained (cetyltrimethylammonium brom…
Abstract preview not available - see full-text PDF article.
A graphical abstract is available for this content
In order to apply ultra-high strength steel sheets with tensile strength of 980MPa or higher to automobiles, it is necessary to ensure the safety of steel parts against hydrogen embrittlement (HE). HE is influenced by hydrogen content and stress and strain introduced in parts by various forming processes. In this pape…
Hollow microcapsules made of biodegradable polymers have attracted considerable attention as ultrasound contrast agents and carriers in drug delivery systems (DDSs). A hollow polyelectrolyte microcapsule is one of the promising candidates for such applications. Hollow polyelectrolyte microcapsules are normally fabrica…
Under microwave radiation, Ag(+)-doped CdS semiconductor nanocrystals with high photoluminescence quantum yield (approximately 58%) and a surprisingly large optical window (480 to 630 nm) are formed controllably using a center-doping strategy and are optimized through a green approach in pure water solution.
Silver–copper alloys have been proposed as catalysts for ethylene epoxidation due to their superior selectivity compared to pure silver, the predominant catalyst for this reaction. Under reaction conditions it has been previously shown that, rather than a two-dimensional (2D) Ag–Cu alloy, a thin copper oxide-like laye…
A perfect two-way shape memory effect (TWSME) with reversible strain of about 9% has been found in the high-temperature Ni57.5Mn22.5Ga20.0 single crystal transforming into 2M non-modulated martensitic phase. Two thermal/mechanical treatment routes were utilized in the experimental procedures. The outstanding high-temp…
The explosive growth of nanotechnology in the last years has led to dramatic innovations in pharmacology, and it is revolutioning the development of biologically active compounds. Carbon nanotubes (CNTs) are widely explored for biomedical applications such as intracellular transporters for (bio)molecules, and represen…
This review paper presents status of research activity of plasma facing materials, mostly tungsten and critical issues towards DEMO reactors. A helium effect on tungsten surface morphology and its impact on fusion reactors and a pulsed heat effect to tungsten are briefly summarized. For DEMO, effects of steady-state o…
Imine-containing bridging groups were formed during self-assembly of periodic mesoporous organosilicas by in situ dynamic covalent chemistry of aldehyde and amine groups in the presence of poly(ethylene oxide)-poly(dl-lactic acid-co-glycolic acid)-poly(ethylene oxide) block copolymer in acidic aqueous solutions.
Two new cardenolide monoglycosides, cardenolides B-1 (1) and B-2 (2) were isolated from Nerium oleander, together with oleagenin (3) which is the first isolated compound from natural sources. The structure of compounds 1-3 were established on the basis of their spectroscopic data.
Merrifield resin was treated with 4,4′-bipyridine and 2,4′-bipyridine, respectively, to give photochromic materials. On exposure to light, reversible color changes are observable. These resins also serve as indicators because reversible color changes are observable on addition of bases, which deprotonate the benzylic…
We present the formation of micelles and peptide particles—so-called peptide beads—emphasising the process that forms the superstructures as a function of temperature and solvent composition.
We report the fabrication and characterization of conductive Pt fiber mats as the conducting core of a high rate redox supercapacitor. Electrospun Pt fiber mats calcined at exhibited a high electrical conductivity of as well as highly porous morphologies composed of 10 nm crystalline Pt nanoparticles. The Pt fiber mat…
The purpose of this study is to form a film of dry-milled zirconia powders by aerosol gas deposition (AGD). Recently, we reported that we could form a high-density zirconia film using wet-type zirconia powders prepared wet-chemically. From the stand point of industrial use, the dry-milled zirconia powder seems to be m…
Gold nanocages are hollow nanostructures with porous walls that can be simply prepared via the galvanic replacement reaction between silver nanocubes and chloroauric acid. Their optical resonance peaks can be precisely tuned into the near-infrared region, in which the adsorption caused by blood or soft tissue is essen…
Single-walled carbon nanotubes were covalently crosslinked using polymer molecules to produce new mechanically strong composites.
Pure octa, deca, and dodeca(4-nitrophenyl) cage silsesquioxanes were obtained by regio-selective 4-nitration of octa, deca, and dodeca(4-trimethylsilylphenyl) cage silsesquioxanes via ipso-substitution of trimethylsilyl-phenyl bonds by fuming nitric acid. 3-Nitration of octa(4-methylphenyl)octasilesquioxane was also d…