Materials Literature
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Cyclic deformation behaviour and dislocation structure of Ti–5 at.% Al single crystals oriented for single prism slip have been studied. Ti–5 at.% Al tested under total strain control (Δεt/2) displays an initial slight cyclic hardening followed by a striking softening period, and then a saturation stage is reached in…
We have synthesized azobenzene-based molecules containing either one or two chiral groups. A cholesteric phase can be induced by adding the chiral azobenzene compounds to a host nematic liquid crystal. We investigated the effects of the trans-cis photoisomerization of the chiral azobenzene compounds on the properties…
With the increasing interest in new artificial materials ranging from meta-materials to photonic bandgap materials there is a growing need for accurate models of artificial materials. We examine the design of a three-layer structure with an artificial dielectric as an anti-reflection-coating on both sides of a dielect…
Raw cottons contain a number of noncellulosic materials that are generally considered to be surface related and may therefore affect fiber quality. Chemical tests are conducted on cottons originating from different U.S. growing locations to determine reducing sugars, wax, metal contents, and total alcohol extractable…
This paper deals with the mechanical properties and air permeability of lightweight wool blend apparel fabrics. We have studied mechanical responses in uniaxial tensile and tear tests of gray-state fabrics, and low deformation characteristics (i.e., bending rigidity, shear rigidity, and extensibility) in FAST tests of…
Hardness indentations with a Vickers pyramid under a load as low as 0.1 N applied at room temperature induce amorphization in single‐crystal mullite when applied to the (001) crystallographic face. Different zones of damage were identified via TEM. Directly under the indenter, in the region of high‐compressive stress,…
Abstract A pair of dicationic metalloporphyrins with only two meso-substituents, i.e. copper(II) and zinc(II) complexes of 5,15-bis(1,3-dimethylimidazolium-2-yl)porphyrin (H2-1), have been synthesized by insertion reaction of the metal ions. Interactions of [5,15-bis(1,3-dimethylimidazolium-2-yl)porphyrinato]copper(II…
Abstract Syntheses of novel 1,3-diphenyldisiloxanes were investigated. 1,1,3,3-Tetrachloro-1,3-diphenyldisiloxane (1) and 1,1,3,3-tetraisocyanato-1,3-diphenyldisiloxane (2) were obtained by vapor-phase hydrolytic condensation of trichloro(phenyl)silane and triisocyanato(phenyl)silane, respectively. The reactions of 1…
g The EPR spectra of Cu 2+ and VO 2+ ions in [NH 4 H 3 (C 2 O 4 ) 2 ]·2H 2 O single crystals were recorded at room temperature in three orthogonal planes. The spectra indicate that the Cu 2+ and VO 2+ ions substitute NH +4 ions. The principal values of the and A tensors were determined. The ground state wave function…
In this study, knitted fabrics that have been used extensively in recent years are chosen to investigate the effects of their properties on flame resistance. Physical parameters (fiber type and composition, yarn count, yarn twist coefficient, fabric design, weight per unit area, air permeability, fabric thickness, cov…
This article presents the application of a three-dimensional finite-element solution algorithm for the prediction of velocity and temperature fields in an industrial continuous galvanizing bath. The effect of line speed, strip width, strip temperature, and inductor mixing are evaluated. Simulations were carried out us…
Abstract The effects of a subvolcanic intrusion on its host rocks in the Priego de Córdoba area (SE Spain) was studied by optical microscopy, X-ray diffraction and electron microscopy. The intrusion of a laccolith of stratiform dolerite in partially consolidated marly sediments at quite shallow depths below the ocean…
Abstract A series of hyperbranched aromatic polyamide copolymers has been prepared and characterized from direct polycondensation of AB 2 and AB monomers. Structure of the monomers and the molar ratio of AB 2 /AB showed strong influence on the properties of resulting copolymers. A small amount of AB 2 branching unit i…
Lithium-doped zinc oxide (ZnO) films were prepared on C-plane sapphire substrates by the e-beam deposition technique in vacuum. The dependences of the optical absorption edge characteristics, structural, and photoelectrical properties on Li content (from 0 to 10 at.%) were investigated. It is found that the variations…
The potential shortage of allograft bone has led to the need to investigate other sources of bone for allografts. Some allograft bone donated from primary total hip arthroplasty recipients must be discarded or treated to become usable as a result of bacterial contamination. Femoral head allografts were contaminated wi…
Abstract In this paper, hyperbranched polyimides having the same repeating unit were synthesized by employing ideal A 2 +B 3 polymerization, non‐ideal A 2 +B 3 polymerization and AB 2 self‐polymerization methods. The polymerization behavior, polymer properties were compared for three methods. Hyperbranched polyimides…
S-shaped kinetic curves are very frequent in nature. Based on our own experimental evidence on the growth of single dendrites and analysis of literature data, we have demonstrated that such curves may result from the maximum entropy production principle. The proposed approach also explains other prevalent laws of rela…
New Practical Technique for Protein Crystallization with Floating and Stirring Methods, Adachi, Hiroaki, Matsumura, Hiroyoshi, Takano, Kazufumi, Niino, Ai, Inoue, Tsuyoshi, Yoshimura, Masashi, Mori, Yusuke, Sasaki, Takatomo
The Crabtree-negative yeast Kluyveromyces lactis is capable of adjusting its glycolytic flux to the requirements of respiration by tightly regulating glucose uptake. RAG5 encoding the only glucose and fructose phosphorylating enzyme present in K. lactis is required for the up-regulation of glucose transport and also f…
Abstract Octadecylamine (ODA) was used to intercalate a fine-grained and a coarse-grained fraction of natural Mg-vermiculite (VER) using a low-temperature melting procedure. Mixtures of Mg-vermiculite fractions and powdered ODA in the molar ratios of 2:1, 1:1, 1:2 and 1:6 were homogenized and heated for 1, 3, 15 and 3…