Keith Miles、A. Karnis1991-01-01TAPPI Journal
This paper reports on theoretical equations describing the flow of pulp in refiners were used to analyze the experimental results obtained in a series of pilot plant trials. Western red cedar and loblolly pine wood chips were refined in 1-3 stages at rotational speeds of 1200 and 1800 rpm to produce thermomechanical p…
Advanced Cellulose Research StudiesLignin and Wood ChemistryPolysaccharides Composition and Applications
E.F. Fuchs、Mohammad A. S. Masoum、D. J. Roesler1991-01-01IEEE Transactions on Power Delivery
Single-phase, nonlinear transformers with anisotropic iron cores are modeled for nonsinusoidal (consisting of fundamental and low-order harmonics) terminal conditions based on design data through a quasi three-dimensional magnetic field analysis. This analysis includes the effects of the interlamination and butt-to-bu…
Power Quality and HarmonicsMagnetic Properties and ApplicationsPower Transformer Diagnostics and Insulation
A. C. Switendick、B. Morosin1991-01-01AIP conference proceedings
Improved crystal structure parameters are reported for α‐boron. Plots showing comparison of theoretical and experimental valence charge densities for two crystalline planes are given. Comparisons of the strengths of various inter‐ and intraicosahedral bonds are reported in terms of the maximum charge density associate…
High-pressure geophysics and materialsBoron and Carbon Nanomaterials ResearchMachine Learning in Materials Science
Hideo Mizukami、Toshio Suzuki、Takateru Umeda1991-01-01鐵と鋼 : 日本鐡鋼協會々誌
A new measurement system using a silicon photo-diode was developed to investigate the precise thermal history during the initial solidification of stainless steel. From the measured cooling curve, it was confirmed there existed large undercooling before nucleation. Maximum undercooling obtained was 260 K. The undercoo…
Microstructure and Mechanical Properties of SteelsSolidification and crystal growth phenomenaMetallurgical Processes and Thermodynamics
Ida Pucci‐Minafra、Claudio Luparello1991-01-01PubMed
Different ratios of type V and I collagens were submitted to mixed fibrillogenesis followed by localization of type V collagen within the aggregates by immunoelectron microscopy. At lower concentrations (10-30%), type V collagen segregates into aperiodic filamentous material, peripheral to the cross-banded type I fibr…
Cell Adhesion Molecules ResearchConnective tissue disorders researchCollagen: Extraction and Characterization
Xiaoping Zhu、Shigeru Kimura1991-01-01NIPPON SUISAN GAKKAISHI
Skipjack Euthynnus pelamis is one of the species of warm-blooded fishes and its true dark muscle is often 10°C warmer than the surrounding water. In this study, we have isolated soluble Type I collagens from the true dark muscle, ordinary muscle, and skin of skipjack in order to make a comparison on their thermal stab…
Collagen: Extraction and Characterization
Β. Eisenmann、Andreas Hofmann1991-01-01Zeitschrift für Kristallographie
Article Crystal structure of hexapotassium di-μ-tellurido-bis(ditelluridogallate), K6Ga2Te6 was published on January 1, 1991 in the journal Zeitschrift für Kristallographie - Crystalline Materials (volume 197, issue 1-2).
Crystal Structures and PropertiesInorganic Chemistry and MaterialsInorganic Fluorides and Related Compounds
Β. Eisenmann、Andreas Hofmann1991-01-01Zeitschrift für Kristallographie
Article Crystal structure of pentasodium tetrathioindate(III), Na5InS4 was published on January 1, 1991 in the journal Zeitschrift für Kristallographie - Crystalline Materials (volume 197, issue 1-2).
Crystal Structures and PropertiesSolid-state spectroscopy and crystallographyInorganic Chemistry and Materials
Toshiyuki Fujii、Masaharu Kato、Tsutomu Mori1991-01-01Materials Transactions JIM
The coarsening of α-Fe particles in a Cu–Fe alloy was examined. Using the Lifshitz-Slyozov-Wagner (LSW) theory of Ostwald ripening, the interfacial energy between α-Fe and Cu was estimated to be 3.3 J/m2. A coarsening process was also studied when α- and γ-Fe particles coexisted. This coarsening mode was different fro…
Microstructure and mechanical propertiesHigh Temperature Alloys and CreepAdvanced Materials Characterization Techniques
Jo�o Rocha、Jacek Klinowski1991-01-01Journal of the Chemical Society Chemical Communications
The dehydration of kaolinite to metakaolinite can be completely reversed; particles of rehydrated metakaolinite grow perpendicular to the c* axis and their edges are parallel to those of parent metakaolinite and kaolinite, showing that the rehydration is a topotactic solid-state process.
Soil and Unsaturated FlowClay minerals and soil interactions
N.A. Platé、В. Г. Куличихин、R. V. Talroze1991-01-01Pure and Applied Chemistry
Polymers containing mesogenic groups in side and main chains of macromolecules represent liquid crystalline (LC) polymers as a special class of polymeric materials. Peculiarities of electrooptical behaviour of side-chain polymers as ferroelectric materials and opticallyrecording media as well as the future of LC engin…
Liquid Crystal Research AdvancementsPolymer crystallization and propertiesSynthesis and properties of polymers
Ali Messaoudi、Michio Inagaki、François Béguin1991-01-01Journal of Materials Chemistry
The reduction reaction between FeCl3 intercalated into graphite and potassium has been studied. The reduction of FeCl3 to metallic Fe and KCl occurred in the graphite gallery and, as a consequence, the reduction products were supposed to be confined within the graphite matrix. By coupling energy-dispersive X-ray spect…
Advancements in Battery MaterialsElectron and X-Ray Spectroscopy TechniquesSurface and Thin Film Phenomena
K.H. Ding、Leung Tsang1991-01-01Journal of Electromagnetic Waves and Applications
The effective propagation constants and attenuation rates in dense nontenuous media with coated dielectric particles governed by size distributions are studied. A coated particle consists of two layers with different materials. In a dense medium, particles do not scatter independently and the effects of correlated sca…
Quasicrystal Structures and PropertiesDiverse Research Studies Overview
Tetsuo Asakura、Makoto Demura、Hidejiro Ogawa 等 5 位作者1991-01-01Macromolecules
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNMR imaging of diffusion of small organic molecules in silk fibroin gelTetsuo Asakura, Makoto Demura, Hidejiro Ogawa, Kazuhiro Matsushita, and Mamoru ImanariCite this: Macromolecules 1991, 24, 2, 620–622Publication Date (Print):January 1, 1991Publication History Published on…
Silk-based biomaterials and applications
T. Oykova、Dencho Mihov、П.Л. Павлова1991-01-01Crystal Research and Technology
Abstract The phase equilibrium in the systems Na 2 SeO 4 –CuSeO 4 –H 2 O and Na 2 SeO 4 –ZnSeO 4 –H 2 O were studied and it was established that new phases were obtained – double salts with a composition: Na 2 Cu(SeO 4 ) 2 · 2 H 2 O and Na 2 Zn(SeO 4 ) 2 · 2 H 2 O. The fields of phase equilibrium of the double salts i…
Crystal Structures and PropertiesSolid-state spectroscopy and crystallographyChemical Thermodynamics and Molecular Structure
Shozaburo Nakashima、Kunihide Takashima、Jiro Harase1991-01-01ISIJ International
A study was made on the effect of the silicon content on secondary recrystallization in grain-oriented electrical steel produced by the single-stage cold rolling process where both MnS and AlN are utilized as inhibitors. The following conclusions were derived from the study:(1) The onset and progress of secondary recr…
Microstructure and Mechanical Properties of SteelsMetallurgy and Material FormingMagnetic Properties and Applications
Curt A. Bronkhorst、Surya R. Kalidindi、Lallit Anand1991-01-01Texture Stress and Microstructure
A Taylor type polcrystalline model, together with a new fully implicit time integration scheme have been developed to simulate the evolution of crystallographic texture during the deformation of face centered cubic metals deforming by crystallographic slip. The constitutive equations include a new equation for the evo…
Textile materials and evaluations
Yasuo Iwamura、Makoto Moriyama、N. Watanabe1991-01-01Japanese Journal of Applied Physics
Layered crystals of GaSe are grown by the Bridgman method. Transmission spectra are measured for various sample configurations with respect to the c -axis, applied electric field, direction of incident light and polarization. Absorption edge shifts toward longer wavelength by 20 nm under an electric field of 1 kV/cm,…
Nonlinear Optical Materials ResearchSolid-state spectroscopy and crystallographyMolecular spectroscopy and chirality
Michiko Iwamura、Chikako Hodota、Masami Ishibashi1991-01-01Synlett
All articles of this category 1-(α-Diazobenzyl)pyrene ( 1c ), red prisms stable at room temperature for more than three months, reacted with the p -toluenesulfonic acid salts of amino acids to give the corresponding highly fluorescent amino acid α-(1-pyrenyl)benzyl ester salts in moderate yield. The amino acids were r…
Click Chemistry and ApplicationsPhotochromic and Fluorescence Chemistry
J. Darken1991-01-01Transactions of the IMF
SummaryThe discovery and use of glyoxylic acid as an alternative reducing agent to formaldehyde for electroless copper processes is described. Using glyoxylic acid eliminates the environmental hazards and health and safety concerns associated with formaldehyde. Due to the similarity in chemistry between formaldehyde a…
Corrosion Behavior and Inhibition