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。
Aeromonas caviae R-specific enoyl-coenzyme A (enoyl-CoA) hydratase (PhaJ(Ac)) is capable of providing (R)-3-hydroxyacyl-CoA with a chain length of four to six carbon atoms from the fatty acid beta-oxidation pathway for polyhydroxyalkanoate (PHA) synthesis. In this study, amino acid substitutions were introduced into P…
Fatigue behavior of four ceramic‐matrix composites (CMCs) was documented at 1000°C, and a fifth composite was documented at 1200°C. Additional fatigue specimens were cycled for set blocks of cycles, removed from the fatigue machine, and exposed in a cyclic corrosion tester for 24 h with a fog of deionized water and a…
Summary Frost damage to potatoes, grapevine and citrus plants was assessed following treatment with either an acrylic polymer (Antistress™) or with a hydrophobic particle film (CM‐96–018). In large freezing tests, the application of the hydrophobic particle film consistently led to less damage whilst the acrylic polym…
We investigated the local density of states (LDOS) of extended individual metallic single-walled carbon nanotubes using low-temperature scanning tunneling spectroscopy. We observed that the LDOS oscillates with energy close to the Fermi level. The oscillation period of about 50 meV varies with position on the nanotube…
Intratumoral injection of controlled-release microsphere formulations of anticancer compounds has the potential to selectively increase tumour exposure to drugs. This work aimed to evaluate the therapeutic effect and toxicity of microsphere formulations containing the anticancer drug, doxorubicin, in a murine tumour m…
Coir composites had been prepared using coir fiber (both continuous and short fiber) as reinforcement with both thermosetting and thermoplastics as matrices. The composite specimens were prepared using both untreated and chemically modified such as defatted, PMMA grafted, PAN grafted and cyanoethylated coir fibers. Co…
Abstract The chemical and structural properties of Mg smectites in the Vicálvaro sepiolite deposit have been studied in detail. The characterization was performed on different size-fractions of selected smectitic samples (5−2 µm; 2−1 µm; 1−0.5 µm; <0.5 µm and <0.1 µm). The chemical compositions of individual par…
Abstract A series of titanium silicate glasses along the composition joins TiO 2 -SiO 2 , TiO 2 -Na 2 SiO 3 , TiO 2 -K 2 SiO 3 and TiO 2 -CaSiO 3 , has been examined using oxygen K -edge X-ray absorption near edge structure spectroscopy (XANES) confined to the near-surface region. Sharp pre-edge features in the spectr…
Using a first-principles plane-wave pseudopotential method, the geometric and electronic structures of ${\mathrm{Ti}}_{2}\mathrm{Al}X$ $(X=V,$ Nb, or Ta) are investigated. The supercells of ${\mathrm{Ti}}_{2}\mathrm{Al}X$ are constructed by replacing certain Ti atoms in ${\ensuremath{\alpha}}_{2}\ensuremath{-}{\mathrm…
The flux of fatty acids toward beta-oxidation was analyzed in Saccharomyces cerevisiae by monitoring polyhydroxyalkanoate synthesis in the peroxisome from the polymerization, by a bacterial polyhydroxyalkanoate synthase, of the beta-oxidation intermediates 3-hydroxyacyl-CoAs. Synthesis of polyhydroxyalkanoate was depe…
The untreated and 2%aqueous NaOH treated bamboo fibers (Dendrocalamus strictus) were coated with epoxy, unsaturated polyester (UP) and their blends. The chemical resistance of these fibers to acetic acid, nitric acid, hydrochloric acid, sodium hydroxide, ammonium hydroxide, sodium carbonate, benzene, toluene, carbon t…
We have carried out a study on the supramolecular liquid crystal organisation shown by LC dendrimers. This study has allowed us to draw interesting conclusions about the molecular plasticity of this type of dendromesogens and even to predict the mesogenic behaviour of higher generations of homologous dendrimers or sim…
Ohmic contacts with low contact resistivity were formed on phosphorus-doped n -type {111} diamond thin films grown by microwave-plasma chemical-vapor deposition. Heavily-doped diamond layers were selectively grown on a diamond substrate by covering a part of substrate surface with a titanium/gold layer. Gold contacts…
In this report, we describe a laser-latex combination system that enables membrane-impermeable molecules to penetrate cell membranes. Laser light (Q-switched Nd:YAG laser, 532.5 nm) was used to irradiate a mixture of commercial latex particles (blue dyed, 1 micro m in diameter) and mouse fibrosarcoma (Meth-A) cells. A…
We studied theoretically the interaction of simple aliphatic amines with carboxylated zigzag and armchair single-walled carbon nanotube (SWNT) models. We used single-level MM+ molecular mechanics and the AM1 semiempirical method to study noncovalent interactions. To study the model amidation reaction with methylamine,…
ABSTRACT: Films based on whey protein isolate (WPI) were formed using compression molding. Compression molded films could be formed using 30% to 50% moisture content or glycerol content WPI at 104 °C to 160 °C for 2 min. Films made from water‐WPI mixtures were brittle and insoluble and had water‐vapor permeability val…
Thin homogeneous films of the Prussian blue analogues with idealized formulas KFe III [Fe II (CN) 6 ], KNi II [Fe III (CN) 6 ], CsNi II [Cr III (CN) 6 ], and KCr II [Cr III (CN) 6 ] have been prepared through the sequential adsorption of the appropriate metal ions and hexacyanometalate complexes onto hydrophobic surfa…
In this review, the control of size and shape of inorganic nanocrystals via colloidal solution is discussed. The nanocrystals are organized in 2D and 3D superlattices with formation of ‘supra’ crystals in fcc structure. Physical properties of nanocrystals organized in mesoscopic scale are neither those of the isolated…
Fully dense, doped ZnO varistors were prepared using an easy two‐stage pressureless‐sintering method at temperatures as low as 825°C, with a grain size of ∼0.5 μm. After the highly nonohmic ZnO varistors were sintered, their fine microstructure consisted of uniformly sized grains, small spinel grains with partially di…
Nanometric ammonium aluminum carbonate hydroxide (AACH) with a particle size less than 5 nm was produced from ammonium aluminum sulfate and ammonium hydrocarbonate under an optimized adding condition, and phase transformations of the AACH on heating and the effect of α‐Al 2 O 3 seeding on the transformation kinetics w…