Hans‐U. Hummel、Hermann Meske1988-04-01Zeitschrift für Naturforschung B
Abstract By reaction of Pb(CH 3 COO) 2 · 3H 2 O with Na 2 S 2 C=C(CN) 2 · 3H 2 O in water, α-PbS 2 C=C(CN) 2 is obtained. Hydrothermal conditions give small crystals of the α-and β-phase. The crystal structures of the two phases have been determined. The α-phase is monoclinic with space group P2 1 /n and a = 11.879(5)…
Crystallography and molecular interactionsOrganic and Molecular Conductors ResearchOrganometallic Compounds Synthesis and Characterization
M. Beeman、D. L. Kohlstedt1988-04-01Tectonophysics
To determine the relationship between applied stress and dislocation density, creep experiments have been carried out on single crystals of natural and synthetic sodium chloride with differential stresses between 2.0 and 20.0 MPa at temperatures in the range 20 to 600° C. Dislocation densities were measured on etched…
Microstructure and mechanical propertiesAluminum Alloy Microstructure PropertiesMetallurgy and Material Forming
Zbigniew Marcinow、Peter W. Rabideau1988-04-01The Journal of Organic Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMetal-ammonia reduction of .alpha.-tetralone. Competition between ring reduction, carbonyl reduction, and dimer formationZ. Marcinow and P. W. RabideauCite this: J. Org. Chem. 1988, 53, 9, 2117–2119Publication Date (Print):April 1, 1988Publication History Published online1 M…
Mesoporous Materials and Catalysis
M. Shamsuzzoha、B. W. Lucas1988-04-01Canadian Journal of Chemistry
The crystal structure relationships between the four thermal polymorphs (IV – 437 K – III – 492 K – II – 564 K – I) of RbNO 3 are discussed. Trigonal IV, a = 10.55(2), c = 7.47(2) Å at 298 K, Z = 9, and space group P3 1 (or its enantiomorph P3 2 ) has Rb atoms arranged on a pseudocubic sublattice defined by [Formula:…
Metal-Organic Frameworks: Synthesis and ApplicationsCrystal structures of chemical compoundsSolid-state spectroscopy and crystallography
R.J. Hawkins、J.-M. Sanchez1988-04-01Journal of Physics F Metal Physics
A short-range order dependent electronically self-consistent theory of ordering in ferromagnetic substitutional binary alloys is presented. The alloy internal energy is calculated using the cluster-Bathe-lattice method. The calculations use the results of elemental electronic structure calculations and experimental ma…
Microstructure and Mechanical Properties of SteelsThermodynamic and Structural Properties of Metals and AlloysMetallurgical and Alloy Processes
S. Jankowski1988-04-01Journal of the American Ceramic Society
A new approach to the problem of the dielectric permittivity and losses observed in some NiZn polycrystalline ferrites which strongly differs from the Debye form is presented. Because the ferrite sample is considered as a disordered structure where the well‐conducting grains of various shape and size are separated by…
Magnetic Properties and Synthesis of FerritesElectromagnetic wave absorption materialsMicrowave and Dielectric Measurement Techniques
Sukhamaya. Bain、Sina Ijadi‐Maghsoodi、Thomas J. Barton1988-04-01Journal of the American Chemical Society
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTKinetics and mechanisms of .alpha.- and .beta.-eliminations of alkoxysilanes from saturated and unsaturated carbon frameworksSukhamaya. Bain, Sina. Ijadi-Maghsoodi, and Thomas J. BartonCite this: J. Am. Chem. Soc. 1988, 110, 8, 2611–2614Publication Date (Print):April 1, 1988…
Inorganic and Organometallic ChemistrySilicone and Siloxane ChemistryPhotopolymerization techniques and applications
Jingjie Shen、Qingxing Zhou1988-04-01Cast Metals
The solidification of high-chromium cast iron containing 2.5% C, 0.3% Mn, 15% Cr, 0.7% Mo, 0.5% B and various concentrations of Si is examined. Samples were liquid quenched at different stages of the eutectic solidification process and examined metallographically and by silicon linear scanning. Two growth patterns wer…
Metallurgy and Material FormingAdvanced materials and compositesMetal Alloys Wear and Properties
Claudio De Rosa、Gaetano Guerra、Vittorio Petraccone 等 5 位作者1988-04-01Macromolecules
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTemperature dependence of intramolecular disorder in the high-temperature phase of poly(tetrafluoroethylene) (phase I)C. De Rosa, G. Guerra, V. Petraccone, R. Centore, and P. CorradiniCite this: Macromolecules 1988, 21, 4, 1174–1176Publication Date (Print):April 1, 1988Publi…
Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesSynthesis and properties of polymers
Joanna Hansen、Kathryn R. Ely、David A. Horsley 等 6 位作者1988-04-01Makromolekulare Chemie Macromolecular Symposia
Abstract Hen egg white lysozyme was adsorbed onto clean borosilicate glass and n‐pentyl silane‐treated glass surfaces. Both modified (reductively methylated) and native lysozyme were studied. Variable angle X‐ray photoelectron spectroscopy (VA‐XPS) suggested differences in the nature of the adsorbed layer depending on…
Proteins in Food SystemsPolymer Surface Interaction StudiesProtein purification and stability
A. J. Disapio、PETRINA FRIDD1988-04-01International Journal of Cosmetic Science
Summary Silicones have been incorporated in personal care products since the 1950s. Initially used in skin care products, and more recently in hair care applications, silicones are recognized for their lubricating properties and for the characteristic soft smooth feel they impart. With recent advances in silicone tech…
Textile materials and evaluations
Zhanming Li、Brian Sullivan、R. R. Parsons1988-04-01Applied Optics
The new 4x4 matrix method described by Lin-Chung and Teitler [P. J. Lin-Chung and S. Teitler, J. Opt. Soc. Am. A 1, 703 (1984)] is used to study the optics of multilayer magnetooptic recording media. It is demonstrated that the method is capable of handling very complicated optical multilayer structures. For a quodril…
Photonic and Optical DevicesLiquid Crystal Research AdvancementsMagneto-Optical Properties and Applications
Masaki Aoyagi、Bernard W. Agranoff、Lee C. Washburn 等 4 位作者1988-04-01Journal of Neurochemistry
Regional transport of 1-aminocyclohexanecarboxylic acid (ACHC), a nonmetabolizable amino acid, across the blood-brain barrier was studied in pentobarbital-anesthetized rats using an in situ brain perfusion technique. The concentration dependence of influx was best described by a model with a saturable and a nonsaturab…
Advanced MRI Techniques and ApplicationsDrug Transport and Resistance MechanismsLanthanide and Transition Metal Complexes
B. Sanschagrin、S.T. Sean、B. V. Kokta1988-04-01Journal of Thermoplastic Composite Materials
Cellulose fibers are selected as a reinforced filler for thermoplastics due to their superior mechanical properties and lower price compared to the thermoplastics. In the present study chemithermomechanical pulp of hard wood (aspen) fibers having selected aspect ratio (length/diameter) were first encapsulated with pol…
Mechanical Behavior of CompositesWood Treatment and PropertiesNatural Fiber Reinforced Composites
Luke L. Y. Chang、Daqing Wu、C. R. Knowles1988-04-01Economic Geology
The formation of sulfbismuthides and the extents of solid solutions in the system Ag2S-Cu2S-PbS-Bi2S3 were studied at 500øC using sealed and evacuated capsule methods. Liquid is present in the Cu•S-rich region of both the systems Ag•S-Cu•S-PbS and Cu•S-PbS-Bi2S3. In the system Ag•S-Cu•S-Bi•S • two new phases, Ag2Bi4S7…
Crystal Structures and PropertiesSolid-state spectroscopy and crystallographyMineralogy and Gemology Studies
W. Bronger、U. Hendriks、Paul Müller1988-04-01Zeitschrift für anorganische und allgemeine Chemie
Abstract Der Aufbau der isotypen Verbindungen Cs 2 Mn 3 S 4 und Cs 2 Co 3 S 4 wurde an Einkristallen bestimmt (Raumgruppe Ibam, Z = 4). Zur Deutung der magnetischen Eigenschaften des Cs 2 Mn 3 S 4 wurde die Mischkristallreihe Cs 2 (Mn x Zn 1‐x ) 3 S 4 untersucht. Neutronenbeugungsuntersuchungen ermöglichten darüber hi…
Magnetic and transport properties of perovskites and related materialsCrystal Structures and PropertiesAdvanced Condensed Matter Physics
Daychyuan Lee、Richard A. Register、Changzheng Yang 等 4 位作者1988-04-01Macromolecules
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMDI-based polyurethane ionomers. 2. Structure-property relationshipsDaychyuan Lee, Richard A. Register, Changzheng Yang, and Stuart L. CooperCite this: Macromolecules 1988, 21, 4, 1005–1008Publication Date (Print):April 1, 1988Publication History Published online1 May 2002Pu…
Polymer composites and self-healing
J. Ortíz‐López、Fritz Lüty1988-04-01Physical review. B, Condensed matter
The order-disorder transformations in NaCN, KCN, and RbCN are studied under thermal cycling around ${T}_{c}$ by monitoring the change in optical transmission produced by the light-scattering properties of their multidomain ordered structures. The phase transitions in both NaCN (large-hysteresis cubic \ensuremath{\left…
Ferroelectric and Piezoelectric MaterialsShape Memory Alloy TransformationsSolid-state spectroscopy and crystallography
Daniela Vedaldi、Sergio Caffieri、Francesco Dall’Acqua 等 6 位作者1988-04-01PubMed
Khellin, a naturally occurring furochromone, used in the past as a coronary vasodilator, has recently been used in the photochemotherapeutic treatment of vitiligo and psoriasis. With the aim of elucidating its mechanism of action, the interactions both in ground and excited states between the drug and DNA were studied…
Photochromic and Fluorescence ChemistrySynthesis of Organic Compounds
Bernard Martel1988-04-01Journal of Applied Polymer Science
Abstract Fifteen different pure polymers were studied by thermal methods under air, nitrogen, and nitrous oxide in order to determine their tendency to char in relation with their structure and the experimental conditions used. Styrene polymers and aliphatic polyolefines give chars under air and total volatilization w…
Polymer crystallization and propertiesPolymer composites and self-healingSynthesis and properties of polymers