Materials Literature
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Silica-supported molybdenum oxide catalysts have been prepared by liquid and gas phase deposition, followed by calcination of the deposited molybdenyl acetylacetonato complex. Fourier-transform infrared spectroscopy indicated a hydrogen bonding anchorage mechanism for the liquid phase deposition and a two step reactio…
It is known that mesophase changes can be induced by E-Z photoisomerization of azobenzenes doped in liquid crystals. Novel azobenzenes have been designed on the basis of Molecular Mechanics and Molecular Orbital calculation, aimed at exploiting novel photoresponsive guest-host liquid crystalline systems exhibiting no…
Dicholesteryl esters of diacetylenedicarboxylic acid with different lengths of methylene linkages were synthesised. Compounds with (CH 2 ) n (n = 2, 4, 5, 6, 7, 8, 10) showed a cholesteric phase. Phase transition temperatures from the isotropic phase to the anisotropic phase showed an odd–even effect of the number of…
A survey of 100 young women's body measurements was undertaken during 1992/93. The findings are the basis of Part 3, which aims to explain how size charts are developed for garments; to evaluate the measuring equipment used and to compare the size chart body measurements with those proportionally derived by traditiona…
ABSTRACT Films plasticized with polyethylene glycol were cast from alkaline (pH 10.5, 11.0, or 11.5), aqueous egg white (EW) solutions with or without heating (40°C for 30 min). Prior to casting, concentration of surface sulfhydryl (SH) groups was determined and they increased (P < 0.05) (3.81–19.45 μM/g protein) w…
In this study we presented a double-grid method for efficient computation of complex dendritic pattern evolving in a large scale solidifying system of pure undercooled melt. The method, which is based on the large difference in phase-field diffusivity and thermal diffusivity in pure material, enables us to use a large…
The unique polyoxometalate compound Na20[{MoVIO3- (H2O)}10{VIVO(H2O)}20{(MoVI/MoVI5O21)(H2O)3}10({MoVI- O2(H2O)2}5/2)2 ({NaSO4}5)2]·xH2O 1 (x ≈ 170) shows remarkable structural features: e.g. (i) {MoVI/MoVI5}-type pentagons as building blocks (being present in the relevant reaction medium as disposition), (ii) a ‘magn…
The use of on-line partial discharge (PD) measurements as an indicator of stator winding insulation condition, is well known. Trending results from on-line PD measurements over time, often allows maintenance personnel to become aware of developing stator insulation problems in motors and generators, and take correctiv…
Chemical states and structures of thin degenerated layers grown on the surface of (Ba, Sr)TiO 3 (BST) films are investigated by X-ray photoelectron spectroscopy (XPS). It was found that decomposition occurred as a result of the air exposure and also as a result of annealing. A careful study of a Ba 3d peak in the XPS…
The effect of thermal fluctuations of magnetization on static and dynamic properties is discussed for nanocrystalline FePt films. The large magnetocrystalline anisotropy K/sub u/ of L1/sub 0/ type FePt results in large K/sub u/V/(kT) values of more than 70 even for very fine grain sizes of 7-8 nm, indicating the poten…
Extensive high-resolution magnetic-susceptibility (\ensuremath{\chi}) measurements have been performed along the c axis (easy direction of magnetization) of a high-purity gadolinium single crystal in the reduced temperature range $5.1\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}5}<~\ensuremath{\epsilon}=(T…
The advantages offered by ferroelectric films deposited directly onto silicon in memory applications, field effect devices and pyroelectric detectors have stimulated intense research activity. This review covers work carried out during the last several years on their growth, characterization and device fabrication usi…
In this review article, the history of the development of fluorochemicals used as repellents for textiles is elucidated from a 3M perspective. The synthetic approaches to manufacturing fluorochemical polymers and the physico-chemical properties of surfaces treated with fluorochemical materials are described. In additi…
Aliphatic polyether dendrons exhibit easily modified surface functionality.
To analyze various approaches for the determination of surface free energies of solids from liquid-solid contact angles, comb-like polymers with controlled grafting rates and macromolecular structures have been synthesized. The surface free energy parameters were calculated from the contact angles of standard liquids…
This publication contains 9 papers on work carried out in a research project supported by the Ministry of Education and Culture of Japan, the Department of Primary Industries, Queensland, Australia, and the Danish Institute for Fisheries Research. The papers cover (1) characterization of fish type-I collagen, (2) mino…
Opposite torques applied axially to a polycrystalline ferromagnetic rod result in tensile and compressive stresses acting perpendicularly at the rod surface at 45/spl deg/ to the rod axis. These stresses affect the magnetization of the rod when a magnetic field is applied parallel to the rod axis. It is shown how one…
Benchmarks for submerged structure response to underwater explosions (UNDEX) are compiled. Both analytical and empirical benchmarks are presented; each type has advantages and disadvantages for the purposes of model validation, though no methodology for employing these benchmarks in a model validation effort is propos…
Amyloid bodies can be found in mammary secretory tissue of various species. These corpora amylacea (CA) have a lamellated structure, contain amyloid fibrils and are predominantly located in the alveolar lumina. The nature of the amyloid was not known, but CA were suggested to originate either from milk casein or mamma…
Micromagnetic calculation using a discrete model was applied to computer simulation of the magnetic properties of nanocomposite magnets, and the effect of the strength of the intergrain exchange interaction on magnetic properties was studied. A reduction of the strength of the intergrain exchange interaction suppresse…