Materials Literature
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Although there are many studies related to predicting the dimensions of knitted fabrics, there are no studies available about predicting the knitting machine used to produce the knit. Until now, the decision to select a knitting machine was made through experience, trial and error, or rough calculations. This study pr…
Smooth muscle cell proliferation plays a major role in the genesis of restenosis after angioplasty or vascular injury. Local delivery of agents capable of modulating vascular responses, have the potential to prevent restenosis. However, the development of injectable microspheres for sustained drug delivery to the arte…
The decomposition kinetics of poly(vinyl butyral) binder from barium titanate multilayer ceramic capacitors with platinum metal electrodes were analyzed by thermogravimetric analysis as a function of the heating rate. The activation energy and pre‐exponential factor for the decomposition kinetics were determined from…
Threonine synthase catalyzes the final step of threonine biosynthesis, the pyridoxal 5'-phosphate (PLP)-dependent conversion of O-phosphohomoserine into threonine and inorganic phosphate. Threonine is an essential nutrient for mammals, and its biosynthetic machinery is restricted to bacteria, plants, and fungi; theref…
The optical gaps of B2O3 alkali borate, and alkali fluoroborate glasses were determined by using blown films. The gap of B2O3 glass was 8.0 eV and the value decreased monotonically with decreasing the B2O3 content in both fluoroborate and borate glasses. When compared at a constant B2O3 content, the gap is in the orde…
For the first time, the grain boundary diffusion was investigated in a nanocrystalline material in the whole spectrum of possible kinetic regimes: types-C, B, AB, and A. The microstructure of the nanocrystalline gamma-Fe-40 wt.% Ni alloy revealed two different levels of organization: the individual nano-scaled grains…
Abstract The influence of elasticity of the blend constituent components on the size and size distribution of dispersed‐phase droplets is investigated for blends of polystyrene and high density polyethylene in a simple shearing flow. The elasticities of the blend components are characterized by their first normal stre…
Differently synthesised layered double hydroxides (LDH) were characterised by using XRD, N2 adsorption, DTA/TG and 27Al NMR. The results of these investigations are discussed with respect to the crystallinity and purity of the material in dependence on the preparation method (without aging, aging at 20 °C, aging under…
Collagen is the major structural protein in skin, bone, tendon, cartilage and blood vessels. Its triple helical structure has been long studied by fibre diffraction. More recently, single crystal X-ray diffraction on collagen-like polypeptide models has allowed a significantly improved description of the triple helix…
Luminescent silicon oxides containing radiative centers were obtained by using two different techniques. Silicon rich silicon oxides (SRSOs) were fabricated by rf magnetron sputter deposition and Ge-implanted SiO2 films were fabricated by ion implantation following the thermal oxidation of Si. Blue and violet photolum…
Elastic properties and tensile strength of single-walled carbon nanotubes, which have topological and coordinated defects, under hydrostatic pressure have been studied by using molecular-dynamics simulations and ab initio electronic structure calculations. The Young's moduli in both the axial direction and the radial…
The structure of barium nitrate crystals grown from supersaturated aqueous solutions under normal conditions and during centrifugation at 11.8×10 3 g is studied for the first time by a high-precision powder neutron diffraction method. It is established for the first time that centrifuging leads to displacement of the…
Aliphatic polyketone (PK) contains both non-polar aliphatic units and polar carbonyl groups, which make it an ideal and unique candidate for modifying non-polar polymer systems containing purely alkyl chains,such as polyalkenes. A new polymer blend system based on polypropylene (PP) and aliphatic polyketone has been p…
Results are provided of the experimental investigation of radioactive fission product (RFP) release, i.e., krypton, xenon, and iodine radionuclides from fuel elements with initial defects during long-term (3 to 5 yr) irradiation under low linear power (5 to 12 kW/m) and during special experiments in the VK-50 vessel-t…
Magnetic-field-induced mutual transformations of a hexagonal structure into linear chains were experimentally observed in a system of glycerol droplets freely suspended in the layer of a nematic liquid crystal with hybrid orientation. A qualitative explanation is suggested for the observed effect.
Abstract The intercalation reaction of hydrated K + ions into the layered structure of 2H-NbS 2 was studied using in situ X-ray diffraction. A structurally complex intercalation mechanism was observed showing several highly one-dimensionally disordered intercalated phases. A quantitative modelling of the disorder in K…
Thermoplastic elastomers (TPE) constitute polymers combining properties of chemically cross-linked rubber with easy plastomer processing and recycling at certain temperatures (TPE). A review of publications on TPEs made of polymer blends is presented, covering thermoplastic elastomeric olefins (TPE-O), thermoplastic v…
Coating the inside surface of gas insulated switchgear (GIS) enclosures with a dielectric film reduces the deleterious effect of electrode surface roughness, impedes the development of metallic particle initiated microdischarges, increases the field required to lift particles, and reduces the charge acquired by partic…
Abstract One objective of this study was to measure the crystallization parameters for syndiotactic polystyrene (M W = 244,000) to support a computer simulation of this material in an injection molding application. A second objective was to introduce a new crystallization rate equation that adequately predicts crystal…
Thermal diffusivities of ε-phase zirconium hydride and deuteride (ε-ZrHx and ε-ZrDx: x = 1.69–1.99) have been measured at the temperatures from room temperature to 600 K by means of a laser-flash method. The hydrogen concentration and temperature dependences on the thermal conductivities of ε-ZrHx and ε-ZrDx have been…