Materials Literature
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We investigate multicomponent finite-size liquid systems with geometry of plane-parallel layer and cylinder. We consider these systems are being affected by weak external field which causes their anisotropy. For these systems we find pair correlation functions and analyze the effect of space limitation and external fi…
Most of grinding sludge is dumped into landfills now. It is responsible to establish recycling technology which enables to reduce environmental load and contribute to our recycle-based society. But it is very difficult to recycle grinding sludge because it contains a lot of coolant.From our previous researches, it was…
Primary Water Stress Corrosion Cracking (PWSCC) which occurs on Nickel based alloy (Alloy 600) is a worldwide concern since early 1980's. Recently several significant degradations that originate from PWSCC in the reactor coolant pressure boundary (RCPB)components have been observed at U.S. PWR plants (e.g. Oconee-3, D…
AC breakdowns are commonly used as a performance indicator for power cables, and yet the data generated can be misinterpreted if the test section of cable is found to have a manufacturing defect. As an example, in a recent publication, dielectric a breakdown value on a 17-year field aged cable was treated as a "suspen…
In analogy to recent demonstrations of enhanced thermoelectric properties in superlattice materials, composite structures with nanoscale features promise dramatic improvements in the figure of merit of thermoelectric materials. Fabrication of nanostructured thermoelectric materials via bulk synthesis is an attractive…
The prospect of manned space missions outside Earth's orbit is limited by the travel time and shielding against cosmic radiation. The chemical rockets currently used in the space program have no hope of propelling a manned vehicle to a far away location such as Mars due to the enormous mass of fuel that would be requi…
The effect of intense atomic hydrogen flux on the defect density in the surface layer of single-crystal silicon is studied. It is shown that the formation of local molten regions by pulsed-light heating of Si samples and further analysis of the local melting pattern can be an efficient tool for determining the number…
The rates of fluidization of solid particles in a fluidized bed are estimated under conditions under which the mass, diameter, and density of particles change significantly as pyrolytic carbon and silicon carbide coatings are deposited on them. A relationship is revealed between the scale of turbulent pulsations of th…
Grown-in crystal-originated particles (COPs) on the surface of silicon nitride-doped Czochralski (CZ)-grown silicon wafers were characterized using atomic force microscopy and scanning electron microscopy. These nanometer-scale COPs are categorized into kite-shaped, parallelepiped-plate and needle-shaped COPs, respect…
Los Alamos National Laboratory (LANL), under the auspices of the U.S. Department of Energy (DOE) and the National Nuclear Security Administration (NNSA), has been conducting confined high explosion experiments utilizing large, spherical, steel pressure vessels to contain the reaction products and hazardous materials f…
This paper describes the process of the designing of the Fowler flap with adaptive elements. Modern passenger and transport aircraft use high lift devices for take off and landing. Of great importance for the creation of high lift during take off and landing is the shape and size of the gap between wing and extended F…
Because aluminum nitride (AlN) has a high thermal conductivity and a high electrical resistivity, it is used for substrates and packaging for high power or high density circuits. Silicon chips need to be protected from faults caused by exposure to ultra-violet rays. AlN packaging and substrates have to be shaded for U…
In this work tantalum oxide nanoparticles were synthesised by controlled hydrolysis of tantalum ethoxide in presence of a linear polysaccharide (1-3 linked β-D galactapyranose and 1,4 linked 3,6 anyhdro-α-L-galactopyranose). Nanoparticles of 100–600 nm were obtained when the polysaccharide was used. The nano…
Nanoindentation tests were performed on the basal (0001) and prismatic (100) surfaces of tourmaline crystals. These results were used along with Vickers microhardness tests to investigate the hardness of the material on these surfaces at different load regimes. It was found that the (0001) surface indicated a higher h…
Energy transfer in the S2 state of a donor-acceptor porphyrin array system has been probed by 60 fs time-resolved fluorescence spectra. Detailed energy transfer channels and mechanism are revealed for this multi-level system.
The crystallization process of erythromycin critically influences the quality of the final pro-(duct).The solventing-out crystallization process of erythromycin was studied when erythromycin lactate was employed as initial material.The crystallization temperature,the quantity,the way and the flow rate of water introdu…
OBJECTIVE To investigate the formulation and preparation technique of anionic oxymatrine liposomes,and determine its physicochemical properties.METHODS Liposme was prepared with different method,using entrapment efficiency as the optimized indexes.The uniform design method was used to optimize the formulation and prep…
The effects of microbially fouling biofilm on corrossion behavior of metallic materials is reviewed in this article which covers microorganism in an extreme condition and its related corrosion,deterioration of water in the system of aeroplane and astronauts caused by the fouling biofilm and the methods in the microbia…
Empty fruit bunches (EFB), fiber, and shell are the main solid residues produced duringextraction of oil from oil palm (Elaeis guineensis Jacq.). Thermogravimetric (TG) and DifferentialScanning Calorimetry (DSC) analyses of these materials were carried out on samples as receivedand after solvent extraction. Presence o…
Spacecraft orbiting below about 300 nm are exposed to a high flux of atomic oxygen (AO) that can severely degrade surface materials, yet some coatings used on solar cell coverglass have never been qualified in this environment. Combined effects tests comprising atomic oxygen exposure, illumination, and temperature wer…