Mahesh Poojary、H. Manohar1985-03-01Inorganic Chemistry
A ternary metal-nucleotide complex, Na2[Cu(5’-IMP)2(im)o,8(H20)l,2(H20)2h]as~ 1be2e.n4 pHr2ep0a,r ed and its structure analyzed by X-ray diffraction (5’-IMP = inosine 5’-monophos hate; im = imidazole). The complex crystallizes in space group C222, with a = 8.733 (4) A, b = 23.213 (5) A, c = 21.489 (6) 1, and Z = 4. Th…
Metal complexes synthesis and propertiesCorrosion Behavior and InhibitionInorganic and Organometallic Chemistry
S.K. Ghatak、D. Ray1985-03-01Physical review. B, Condensed matter
The question of coexistence of cubic-to-tetragonal structural transition and both paramagnetic-to-ferromagnetic and -antiferromagnetic transitions in a twofold-degenerate band is studied under the Hartree-Fock approximation of the Hubbard Hamiltonian. The phase diagrams for both the transitions have been worked out at…
High-pressure geophysics and materialsMagnetic and transport properties of perovskites and related materialsThermal Expansion and Ionic Conductivity
Masatoshi Miura、Fumihiko Akutsu、Toshio Usui 等 5 位作者1985-03-01Die Makromolekulare Chemie
Abstract Copolymers from styrene and a mixture of p ‐ and m ‐chloromethylstyrene were reacted with sodium cyclopentadienide in THF and precipitated in methanol at temperatures lower than −20°C to obtain soluble cyclopentadienylated polymers. Due to extensive gelation, the content of cyclopentadienyl groups could not b…
Advanced Polymer Synthesis and CharacterizationPolymer composites and self-healingCarbon dioxide utilization in catalysis
Yoshimi Sueishi、Kazuo Ohtani、Norio Nishimura1985-03-01Bulletin of the Chemical Society of Japan
Abstract The kinetics of the thermal cis-to-trans isomerization of N,N′-diacylindigos(DAI) in various solvents and under high pressures has been studied. N,N′-Dibenzoylindigos(DBI) isomerize about 10 times slower than molecules not having a benzene ring in the acyl groups. The values of the activation volumes were abo…
Inorganic and Organometallic ChemistrySynthesis and properties of polymers
A. Packter1985-03-01Crystal Research and Technology
Abstract The studies of the rapid precipitation of magnesium hydroxide, from aqueous solutions of different concentrations by sodium, calcium and ammonium hydroxides, are analysed. The kinetics of nucleation and microcrystallite formation during the induction periods and the kinetics of crystal growth (onto the microc…
Calcium Carbonate Crystallization and InhibitionMinerals Flotation and Separation TechniquesCrystallization and Solubility Studies
Brian W. Sullivan、Raymond N. Dominey、Jeffrey H. Helms 等 6 位作者1985-03-01Molecular crystals and liquid crystals
Single crystals of hydrogen bis(phthalo-cyaninato)neodymium(III) have been synthesized by electrochemical means. The crystals are semiconductors and follow Curie-Weiss behavior.
Photosynthetic Processes and MechanismsPorphyrin and Phthalocyanine ChemistryMetal-Catalyzed Oxygenation Mechanisms
A. Zingales、Giuseppe Quartarone、Giuliano Moretti1985-03-01CORROSION
It has been suggested that the sigma phase and its preliminary phases are responsible for intergranular corrosion of molybdenum-containing austenitic stainless steels in such environments as 65 wt% boiling nitric acid when the material is heat treated or when ferrite is introduced by welding. In this paper, data obtai…
Microstructure and Mechanical Properties of SteelsHydrogen embrittlement and corrosion behaviors in metalsWelding Techniques and Residual Stresses
L.C. Thanh1985-03-01IEEE Transactions on Industry Applications
Negative corona discharge from multiple interacting points has been investigated with emphasis on the role of negative streamers in causing spark breakdown. The interaction among the evenly spaced bright discharge spots existing along a negative corona wire was simulated with a multiple point electrode whose point-to-…
High voltage insulation and dielectric phenomenaPlasma Applications and DiagnosticsAerosol Filtration and Electrostatic Precipitation
I C Sharma、Subrata Ghosh、Narender Kumar Gupta1985-03-01Textile Research Journal
An account is given of a study of the dimensional changes of plain weft knitted fabrics made from 12s, 16s, and 22s grasicrimp yam, brought about by various processes of relaxation including dry relaxation, wet relaxation, and tumble drying. In the dry relaxed state, the nature of knitted loop depends on the yarn's ph…
Dyeing and Modifying Textile FibersTextile materials and evaluationsColor Science and Applications
G. M. Biggar1985-03-01Mineralogical Magazine
Abstract Using previously published data and a few new data the compositions of protopyroxene, orthopyroxene, and pigeonite, coexisting with liquid in the system CaO-MgO-SiO 2 , are reviewed and shown to depend subtly on the number and nature of the coexisting phases such as forsterite, silica, other pyroxene, and liq…
Concrete and Cement Materials ResearchCalcium Carbonate Crystallization and InhibitionCO2 Sequestration and Geologic Interactions
Sandeep Gupta、M R Dr.Prathapachandra Kurup、E. Devadoss 等 5 位作者1985-03-01Journal of Applied Polymer Science
Hydroxyl terminated natural rubber (HTNR) was prepared by the depolymerization of masticated natural rubber in the presence of H2O2 in toluene. Probable mechanisms leading to the formation of side reaction products are proposed based on the analytical data. A comparative study of some formulation variables was made fo…
Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesEnergetic Materials and Combustion
D. A. Dunmur、T. F. Waterworth、Peter Palffy-Muhoray1985-03-01Molecular crystals and liquid crystals
The effect of an electric field on the measured order parameter of a liquid crystal is considered. It is pointed out that an external field may influence the apparent degree of order by changing the microscopic order parameter, and by quenching director fluctuations. In nematic liquid crystal the latter dominates, but…
Liquid Crystal Research AdvancementsSpectroscopy and Quantum Chemical StudiesNonlinear Dynamics and Pattern Formation
R. Laversanne、J. Amiell、C. Coulon 等 5 位作者1985-03-01Molecular crystals and liquid crystals
(TMPTF)2SbF6 shows an anomaly on the temperature dependence of its electrical conductivity at 154K and at low temperature an antiferromagnetic ground state. On the other hand (TMTTF)2AsF6 ground state is non-magnetic. He present the spectroscopic and magnetic studies of these two salts and of their alloys (TMTTF)2 (Sb…
Magnetism in coordination complexesOrganic and Molecular Conductors ResearchInorganic Fluorides and Related Compounds
Kangsa Pak、Tatau Nishinaga、T. Tanbo 等 6 位作者1985-03-01Japanese Journal of Applied Physics
The origin of the dark region in LPE grown GaP crystals associated with macrostep is investigated by observation of photoluminescence (PL) image and spatially resolved photolumenescence (SRPL) spectroscopy. PL image from the cleaved surface of undoped, N, S, and Zn doped layers showed that the dark region appeared onl…
Semiconductor Quantum Structures and DevicesQuantum Dots Synthesis And PropertiesNonlinear Optical Materials Research
В. А. Бородин、T. A. Steriopolo、V. A. Tatarchenko 等 4 位作者1985-03-01Crystal Research and Technology
Abstract Bubble distribution in shaped sapphire crystals grown by Stepanov technique is found to depend on the field of velocities of the melt flows between the top surface of a die and the crystallization front. A die design defining the flows in the meniscus is a tool for control over the bubble distribution.
Solidification and crystal growth phenomenaMetallurgical Processes and Thermodynamicsnanoparticles nucleation surface interactions
Peter A. Tanner1985-03-01Molecular Physics
Three luminescence transitions in the 476 nm excited spectrum of Cs2NaTmCl6 between 7200–4100cm-1 are assigned to the 3 H 4 → 3 F 4, 3 H 5 and 3 F 4 → 3 H 6 transitions of TmCl3- 6. A crystal field analysis of the energy levels of this anion is given.
Luminescence Properties of Advanced MaterialsSolid State Laser TechnologiesSolid-state spectroscopy and crystallography
Ziyang Qin、Christopher W. Macosko、Stephen T. Wellinghoff1985-03-01Macromolecules
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and characterization of model urethane compoundsZ. Y. Qin, C. W. Macosko, and Stephen T. WellinghoffCite this: Macromolecules 1985, 18, 3, 553–557Publication Date (Print):March 1, 1985Publication History Published online1 May 2002Published inissue 1 March 1985https…
Polymer composites and self-healingPhotochemistry and Electron Transfer StudiesFree Radicals and Antioxidants
Jochen Coutandin、Dietmar Ehlich、H. Sillescu 等 4 位作者1985-03-01Macromolecules
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDiffusion of dye molecules in polymers above and below the glass transition temperature studied by the holographic grating techniqueJochen Coutandin, D. Ehlich, Hans Sillescu, and Chin Hsien WangCite this: Macromolecules 1985, 18, 3, 587–589Publication Date (Print):March 1,…
Photonic Crystals and ApplicationsOptical Coatings and GratingsThermal Radiation and Cooling Technologies
R. Barton1985-03-01Journal of Macromolecular Science Part B
Meridional x-ray reflections of Kevlar (TM) aramid fibers have been analyzed to provide direct information about fine structure in the direction of the fiber axis. In particular, these reflections have been studied to provide evidence for a one-dimensional paracrystalline structure in Kevlar and to seek quantitative s…
Enzyme Structure and FunctionFiber-reinforced polymer composites
F. Bréhat、B. Wyncke1985-03-01physica status solidi (b)
Abstract The infrared reflectivity spectra polarized along the c ‐axis of potassium dihydrogen phosphate are studied for both, the ferro‐ and paraelectric phase, over a wide temperature range: 10 to 420 K. The reflectivity spectra are fitted to the factorized form of the dielectric function. The temperature dependence…
Nonlinear Optical Materials ResearchAcoustic Wave Resonator TechnologiesSolid-state spectroscopy and crystallography