Alessandro Fumagalli、Roberto Della Pergola、F. Bonacina 等 6 位作者1989-01-01Journal of the American Chemical Society
The 76 CVE (cluster valence electron) species [PtIr4(CO)14]2- (l), obtained by the reductive carbonylation of a mixture of Na2PtC16 and IrC13.xH20 or Ir4(CO)12, is in equilibrium with the 72 CVE species [PtIr4(CO)12]2-(2) through the dissociation-association of two carbonyl ligands. Both anions were characterized by t…
Organometallic Complex Synthesis and CatalysisAsymmetric Hydrogenation and CatalysisPolyoxometalates: Synthesis and Applications
K. Naito、Ryosuke Matsuoka、Susumu Ito 等 4 位作者1989-01-01IEEE Transactions on Power Delivery
The results of investigations into the cause of certain flashovers which occurred in horizontally mounted insulators in HVDC stations are described. Insulators having various shed shapes were subjected to contamination and wet tests under horizontally and vertically mounted insulators, a slight reduction was found in…
High voltage insulation and dielectric phenomenaLightning and Electromagnetic PhenomenaThermal Analysis in Power Transmission
Donald L. Suarez、M. F. Zahow1989-01-01Soil Science Society of America Journal
Abstract The need to consider CaCl + and MgCl + complexes in Ca‐Mg exchange reactions on montmorillonite was evaluated by examining cation selectivity in various anion backgrounds. The Ca‐Mg exchange isotherms on SWy‐1 Wyoming bentonite were determined in 0.0125 M SO 4 , 0.025, 0.050, and 0.100 M Cl and 0.03 M perchlo…
Clay minerals and soil interactionsChemical Synthesis and CharacterizationChemical Analysis and Environmental Impact
Shunichi Fukuzumi、Kumiko Tanii、Toshio Tanaka1989-01-01Journal of the Chemical Society Perkin Transactions 2
Photo-oxidation of unsaturated fatty acids or esters (LH = oleic acid, linoleic acid, methyl linoleate, and linolenic acid) by oxygen proceeds efficiently in the presence of a riboflavin derivative, riboflavin-2′,3′,4′,5′-tetra-acetate (Fl), in acetonitrile by a type II (singlet oxygen) mechanism with a limiting quant…
Porphyrin and Phthalocyanine ChemistryPhotodynamic Therapy Research StudiesPhotochromic and Fluorescence Chemistry
W. Nachtergaele、J. van Nuffel1989-01-01Starch - Stärke
Abstract For several reasons, calibrated wheat starch is by far the best performing stilt material in carbonless copy paper. Due to its size selection and its nice globular shape, it gives excellent stilt functionality at relatively low doses compared to native wheat starch. Less binder is needed and better copy quali…
Advanced Cellulose Research StudiesLignin and Wood ChemistryMaterial Properties and Processing
Lionel R. Milgrom、Nasrin Mofidi、Christopher C. Jones 等 4 位作者1989-01-01Journal of the Chemical Society Perkin Transactions 2
A series of porphyrins (2a)–(5a), unsymmetrically substituted in their meso-positions with 3,5-di-tbutyl-4-hydroxyphenyl(DtB4HP) and 4-hydroxyphenyl (4HP) groups, has been synthesised and characterised. The two di-DtB4HP di-4HP isomeric porphyrins, (3a) and (4a)(called ‘cis’ and ‘trans’, respectively), in particular a…
Porphyrin and Phthalocyanine ChemistryLuminescence and Fluorescent MaterialsPorphyrin Metabolism and Disorders
Ronald L. Sack1989-01-01Medical Entomology and Zoology
Symbols and notation. Introduction. The stiffness method using the basic equations. The stiffness method using virtual work. The stiffness method for beams and planar frames. The stiffness method for three-dimensional structures. Special topics for the stiffness method. The flexibility method. Appendices. Index.
Structural Analysis and OptimizationStructural Analysis of Composite MaterialsMaterial Properties and Applications
Yoshinori TATEISHI1989-01-01Journal of Nuclear Science and Technology
The development of FBR fuel systems with high reliability and long in-core residence capability is required to make the fast reactor economically competitive with other electrical energy sources. PNC program of fuels and materials development has been primarily focused on mixed uranium/plutonium oxide (MOX) fuel with…
Fusion materials and technologiesNuclear reactor physics and engineeringNuclear Materials and Properties
A.J. Moses、H. Rahmatizadeh1989-01-01IEEE Transactions on Magnetics
Two nonoriented low-silicon iron cores were compared. The laminations were magnetized as in an induction motor stator core, and the flux density and localized power loss measured at various flux densities using arrays of search coils and thermistors mounted on individual laminations. A uniform static radial stress of…
Magnetic properties of thin filmsElectric Motor Design and AnalysisMagnetic Properties and Applications
G.B. Ferguson、K. O’Grady、J. Popplewell1989-01-01IEEE Transactions on Magnetics
Initial magnetization, demagnetization, and magnetic viscosity data are presented for sintered and melt-spun NdFeB over a range of temperatures. A model based on strong domain wall pinning is used to investigate the energy barriers in operation in each case. Temperature is observed to have little effect on magnetizati…
Magnetic properties of thin filmsMagnetic Properties and ApplicationsMagnetic Properties of Alloys
Tsuyoshi Kodama1989-01-01THE JOURNAL OF THE STOMATOLOGICAL SOCIETY JAPAN
The biocompatibility of two different titanium alloys, Ti-6Al-4V ELI and Ti-5Al-2, 5Fe, and pure titanium were evaluated. The results were as follows: 1) Titanium alloys were implanted into the dorsal subcutaneous tissues of the Hartley guinea-pig for 12 weeks, immersed in calf serum or in Ringer's solution for 8 week…
Bone Tissue Engineering MaterialsOrthopaedic implants and arthroplastyTitanium Alloys Microstructure and Properties
Karl M. Kadish、X. H. Mu、X. Q. Lin1989-01-01Electroanalysis
Abstract The construction and utilization of a simple light‐transparent NaCl thin‐layer FTIR spectroelectrochemical cell for transparency measurements is reported. This cell has a 0.25‐mm optical pathlength and a three‐electrode configuration. The application of this cell for in situ FTIR measurements is demonstrated…
Porphyrin and Phthalocyanine ChemistryPhotochemistry and Electron Transfer StudiesElectrochemical Analysis and Applications
Tomoki Akai、S. Endo、Yuichi Akahama 等 5 位作者1989-01-01High Pressure Research
Single crystal X-ray analysis of black phosphorus, a narrow gap semiconductor with puckered layer structure, was performed under high pressure up to 4.7 GPa Pressure dependences of the lattice parameters show anisotropy, as reported in the literature. The length of the b axis and unit cell volume decrease Linearly wit…
2D Materials and ApplicationsBoron and Carbon Nanomaterials ResearchMXene and MAX Phase Materials
Kazunori Sato、Katsuhiko Tanaka、Yasunobu Inoue1989-01-01ISIJ International
The α/γ equilibrium in the ternary Fe–Mn–Al system was experimentally investigated at 1 073, 1 273 and 1 373 K. The tie-lines in the (α+γ) two-phase field were determined at 1 273 K by measuring the alloy content of the individual phases of equilibrated two-phase specimens by means of X-ray microanalysis. These experi…
Intermetallics and Advanced Alloy PropertiesMagnetic Properties of AlloysMetallurgical and Alloy Processes
Saburo Shoji、Noriyuki Ohnaka1989-01-01Corrosion engineering digest
In order to evaluate the effects of relative humidity (RH) at room temperature and kinds of chlorides on atmospheric stress corrosion cracking (SCC) of SUS 304 and 316 L stainless steels in contact with chlorides, SCC tests were carried out in RH controlled environments by using U-bend specimens deposit of 0.5 N chlor…
Corrosion Behavior and InhibitionHydrogen embrittlement and corrosion behaviors in metalsNon-Destructive Testing Techniques
K. Tochi、N. Takeuchi、Shūichi Emura1989-01-01Journal of the American Ceramic Society
Infrared reflection and Raman spectra have been measured for two complex perovskite ceramic materials, Ba(Mn 1/3 Ta 2/3 )O 3 and Ba(Ni 1/3 Ta 2/3 )O 3 . Two‐mode behavior was observed for both of the compounds in the inner vibrations of the BO 6 ‐type octahedrons, where B indicates Mn, Ta, and Ni ions. This behavior i…
Ferroelectric and Piezoelectric MaterialsMultiferroics and related materialsMicrowave Dielectric Ceramics Synthesis
N. Takahashi、T. Nakata、Noriyuki Uchiyama1989-01-01IEEE Transactions on Magnetics
A novel method for determining the sizes of iron parts in a magnetic circuit, which preserves the requirement of prescribed flux densities, has been developed. In order to take into account the nonlinear characteristics of iron, the magnetization integral equation method is used in the analysis. The effectiveness of t…
Magnetic Properties and ApplicationsNon-Destructive Testing TechniquesInduction Heating and Inverter Technology
Eiichi Yagi、Shiho Nakamura、Fumihisa Kano 等 7 位作者1989-01-01Physical review. B, Condensed matter
In order to elucidate the mechanism of the enhancement of the terminal solubility for hydrogen (TSH) in Nb by alloying with undersized Mo atoms, the state of hydrogen was studied by the channeling method using a nuclear reaction $^{1}\mathrm{H}$${(}^{11}$B, \ensuremath{\alpha})\ensuremath{\alpha}\ensuremath{\alpha} in…
Advanced Chemical Physics StudiesFusion materials and technologiesNuclear Materials and Properties
V. N. Khachin1989-01-01Revue de Physique Appliquée
Crystallographic and kinetic characteristics of martensitic transformations and parameters of shape memory effect in B2 compounds of titanium Ti 50Ni50-xXx (X = Fe, Co, Pd, Pt, Au, Cu) and Ti50Pd50-xY x (Y = Fe, Co, Cu), where 0 ≤ x ≤ 50 are investigated. Temperature, hysteresis, value of reversible deformation and st…
Shape Memory Alloy TransformationsIntermetallics and Advanced Alloy PropertiesTitanium Alloys Microstructure and Properties
Roald Hoffmann、R. Hoppe1989-01-01Zeitschrift für anorganische und allgemeine Chemie
Abstract Erstmals wurde in Form farbloser, transparenter Einkristalle Li 4 MoO 5 [aus Gemengen von Li 2 O und MoO 3 . Li:Mo = 4,2:1, Ni‐Bömbchen, 950°C, 28 d] sowie Li 4 WO 5 [aus Gemengen von Li 2 O und WO 3 , Li:W = 4,4:1, Au‐Rohr, 900°C, 30 d] dargestellt. Nach Einkristalldaten liegt bei den isotypen Oxiden vom Li…
Luminescence Properties of Advanced MaterialsNuclear materials and radiation effectsPigment Synthesis and Properties