Materials Literature
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Order-disorder mechanism is a part of phase transition nature in the ABO3 perovskites. It is related with the existence of polar regions, which dynamics in the electric field determines the dielectric response near T c. Temperature dependence of mechanical strain connected with polarisation change in the paraelectric…
Due to its inherently favorable properties, doped single-crystal silicon has potential application as an on-chip thermoelectric microcooler for advanced integrated circuits. In this paper, an analytical thermal model for silicon microcooler, which couples Peltier cooling with heat conduction and heat generation in the…
The atomic density function kinetic theory of a spontaneous atomic rearrangement at the atomic scale is developed. In this theory, the evolution of the system is described not by the individual movement of each atom in the same system but by the evolution of the atomic density functions, which are averages over the ti…
Si nanocrystals designed for memory applications were prepared in a layered arrangement by using a SiOx∕SiO2 multilayer structure with a variation of the stoichiometry parameter x from 0.9 to 1.63. The stoichiometry of the SiOx layers is controlled by adjusting the oxygen pressure during the growth which influences th…
This paper presents a novel methodology to analyze low resolution (e.g., 6A to 10A) protein density map, that can be obtained through electron cryomicroscopy. At such resolutions, it is often not possible to recognize the backbone chain of the protein, but it is possible to identify individual structural elements (e.g…
Abstract In this paper, we examine the rheological and the structural properties of different types of gelatin networks, physical, chemical and both. The physical gel is due to the formation of collagen type triple helices when cooling the solutions. Chemically crosslinked gels are obtained with a reagent, in our case…
The interface between classical and quantum physics has always been an interesting area, but its importance has grown with the current explosive thrusts in nanoscience. Taking devices to the limit of miniaturization where quantum effects become important makes it essential to understand the interplay between classical…
The thermal spray committee of the Japan Association of Corrosion Control (JACC) has been conducting a marine corrosion test of thermal-sprayed Zn, Al, and Zn-Al coatings since 1986. The coating was applied to twelve steel pipes by arc- and flame-spraying to varied thicknesses and subjected to various post-spray treat…
We report a size-manipulable synthesis of single-crystalline nanorods/nanowires of barium manganite (BaMnO(3)) and barium titanium manganite (BaTi(1/2)Mn(1/2)O(3)) by using the composite-hydroxide-mediated approach. The synthesis cleanly yields nanorods with a hexagonal perovskite structure. Typical nanorods have widt…
Even though enormous progress has been made in our understanding of soluble proteins and enzymes, our knowledge of membrane proteins, particularly integral membrane proteins, still lags far behind. Although a large number of chemical detergents and lipids are available, so far they are inadequate for tackling the prob…
Microwave components with nonlinear phase responses are developed using a simplified composite right/left-handed (CRLH) transmission-line (TL) structure without the series capacitance or the shunt inductance. Using such a simplified CRLH structure, arbitrarily dual-band microstrip components have been realized in comp…
AND RECENT ADVANCES. Chitin and chitosan are copolymers build from N-acetyl-D-glucosamine and D-glucosamine. The former is widely found in nature and yields the latter on deacetylation. The copolymers are being used for several purposes. Since 1977, when the First International Conference on Chitin and Chitosan was he…
Equations are given to represent the lattice parameter thermal expansion of platinum from 293.15 K to the melting point at 2041.3 K. This treatment is intended to supersede a combination of dilatometric equations with corrections for thermal vacancy effects .
SABBAC is an on-line service devoted to protein backbone reconstruction from alpha-carbon trace. It is based on the assembly of fragments taken from a library of reduced size, selected from the encoding of the protein trace in a hidden Markov model-derived structural alphabet. The assembly of the fragments is achieved…
It is found that replacement of the chloride ions in tetrachloroauric acid with bulky bromide ions inhibits the formation of gold nanoparticles in the photochemical reduction in ethylene glycol. However, the addition of silver ions to either the bromide or the chloride auric acid solution is found to enhance the rate…
We report on a simple route for the production of uniform and ultra narrow wurtzite CdS nanowires and nanorods. The nanorods are medium friendly (can exist in organic and aqueous phase) thus making them flexibly suitable for various applications. The centimeter range switchable ordering of the nanowires/rods into 3D m…
The Raman spectra of the ε-, δ-, and γ-Li x V 2 O 5 powdered phases are reported. New fingerprints are obtained and discussed in connection with those previously reported for electrochemically and chemically lithiated V 2 O 5 . The metastable character of the δ-phase is explored through the XRD and Raman study of the…
We have fabricated and tested a sample probe that can measure resistivity (ρ) and thermopower (α) on either bar or rod shaped samples over a temperature span of 300–1000K. The design allows us to perform measurements both in vacuum as well as in inert atmosphere and hence suitable for any oxygen sensitive bulk samples…
In the dual-coolant lead lithium (DCLL) blanket, the key element is the flow channel insert (FCI) made of a silicon carbide composite (SiCf/SiC), which serves as electric and thermal insulator. The most important magnetohydrodynamic (MHD) and thermal issues of the FCI, associated with MHD flows and heat transfer in th…
The intergranular stress corrosion cracking (IGSCC) growth behavior of austenitic stainless steels (SS) in hydrogenated high-temperature water were studied using compact tension specimens (0.5T for cold-worked materials). The effects of carbide precipitation, alloy composition, and the cold rolling direction on crack…