Frans B. Hulsbergen、R. W. M. TEN HOEDT、G. C. Verschoor 等 5 位作者1983-01-01Journal of the Chemical Society Dalton Transactions
An unusual trimeric CuII species of formula [Cu3(OH)(pz)3(Hpz)2(NO3)2]·H2O (Hpz = pyrazole) has been prepared from air oxidation of [Cu(Hpz)2(NO3)] in the presence of moisture. The X-ray structure of the oxidation product has been determined by single-crystal diffractometer techniques, and has been compared with a few…
Metal complexes synthesis and propertiesMagnetism in coordination complexesMetal-Catalyzed Oxygenation Mechanisms
M. J. Verkerk、A.J. Burggraaf1983-01-01Journal of The Electrochemical Society
An equivalent electrical circuit that describes the electrode processes on different electrolytes, using porous Pt electrodes, is given. Diffusional processes are important and have to be presented by Warburg components in the circuit. The overall electrode process is rate limited by diffusion of atomic oxygen on the…
Electrocatalysts for Energy ConversionAdvancements in Solid Oxide Fuel CellsFuel Cells and Related Materials
Milada Glogarová、L. Lejček、J. Pavel 等 5 位作者1983-01-01Molecular crystals and liquid crystals
The mechanism of a field induced transition from helical Sm C∗ to Sm C structure in a DOBAMBC liquid crystal situated between two glass plates has been studied by optical methods. The important role of a regular system of twist disclination lines (dechiralization lines) in unwinding the helical structure by electric f…
Liquid Crystal Research AdvancementsPlant Reproductive BiologyMolecular spectroscopy and chirality
Claus S. Jacobsen、J. B. Torrance1983-01-01The Journal of Chemical Physics
The charge-transfer band is determined from reflectance measurements on single crystals of TTF-chloranil from 300 to 45 K, passing through the neutral-ionic phase transition at 84 K. As the temperature is decreased from 300 K toward the transition, hνCT decreases slowly from 0.66 to 0.55 eV, perhaps the lowest energy…
Nonlinear Optical Materials ResearchOrganic and Molecular Conductors ResearchSolid-state spectroscopy and crystallography
Richard M. Forester1983-01-01Geology
Research Article| August 01, 1983 Relationship of two lacustrine ostracode species to solute composition and salinity: Implications for paleohydrochemistry Richard M. Forester Richard M. Forester 1U.S. Geological Survey, Denver, Colorado 80225 Search for other works by this author on: GSW Google Scholar Author and Art…
Geology and Paleoclimatology ResearchAquatic Ecosystems and Phytoplankton DynamicsDiatoms and Algae Research
Y. Oono、Mahito Kohmoto1983-01-01The Journal of Chemical Physics
The (Gell–Mann–Low type) renormalization group theory is applied to frictional properties of dilute polymer solutions for the first time. The universal ratios such as Flory’s intrinsic viscosity constant, the Flory–Scheraga–Mandelkern parameter, etc., are estimated from the first order ε-expansion theory (ε=4−d, d bei…
Material Dynamics and PropertiesThermodynamic properties of mixturesRheology and Fluid Dynamics Studies
C. M. Hwang、M. Meichle、M. B. Salamon 等 4 位作者1983-01-01Philosophical magazine. A/Philosophical magazine. A. Physics of condensed matter. Structure, defects and mechanical properties
A second ‘premartenaitic’ effect in a Ti50Ni47Fe3 alloy was found to occur approximately 12°C below the onset of the initial ‘normal-to-incommensurate’ transition described in the previous paper. This subsequent phase change involves a structural transition from a ‘distorted’ CsCl parent to a rhombohedral product, dur…
Magnetic properties of thin filmsTheoretical and Computational PhysicsQuasicrystal Structures and Properties
R. W. Lewis、K. Morgan、B. A. Schrefler1983-01-01Medical Entomology and Zoology
Topics discussed in this book include modelling the effects of fire, ablation, heat flow in porous rock, thermal stress and dissolving coal. Alternative energy sources such as geothermal reservoirs and solar radiation are also discussed. Includes bibliographies at the end of the papers, a cited author index, and a sub…
Textile materials and evaluationsContact Mechanics and Variational Inequalities
M. J. Verkerk、M. W. J. Hammink、A.J. Burggraaf1983-01-01Journal of The Electrochemical Society
The electrode behavior of Pt‐sputtered and PT‐gauze electrodes on ZrO 2 ‐ Y 2 O 3 , Bi 2 O 3 ‐ Er 2 O 3 , and CeO 2 ‐ Gd 2 O 3 solid electrolytes was investigated by means of d‐c measurements in the temperature region of 770–1050 K and in the oxygen partial pressure region of 10 − 5 – 1 atm O 2 using N 2 ‐ O 2 mixture…
Electrocatalysts for Energy ConversionAdvancements in Solid Oxide Fuel CellsFuel Cells and Related Materials
Peter B. Hitchcock、Michael F. Läppert、Anirudh Singh1983-01-01Journal of the Chemical Society Chemical Communications
Five new classes of crystalline, hydrocarbon-soluble group 3A metal (M) aryloxides are reported: [M(OAr)3], (1), [M(L)(OAr)3][L = tetrahydrofuran (thf) or P(O)Ph3], [M(OAr)2(µ-OAr)2Na(thf)2], Li[Yb(Cl)(OAr)3], and [{Y(Cl)(OAr)(µ-OAr)}2](Ar = C6H2Me-4-But2-2,6), ranging for (1) from M3+ being the 3d°, 4d°, to the 4fn(n…
Magnetism in coordination complexesLanthanide and Transition Metal ComplexesPolyoxometalates: Synthesis and Applications
J. J. van der Klink、Daniel Rytz、F. Borsa 等 4 位作者1983-01-01Physical review. B, Condensed matter
Li, substituting for K in KTa${\mathrm{O}}_{3}$, creates a local electric dipole, due to its off-center position with respect to the cubic site. We have studied such crystals with different amounts of Li (and in a few cases also doped with Nb, substituting for Ta) by nuclear magnetic resonance, dielectric relaxation,…
Glass properties and applicationsTheoretical and Computational PhysicsPhotonic Crystals and Applications
Robert M. Hill、A.K. Jonscher1983-01-01Contemporary Physics
The dielectric properties of condensed matter do not in general follow the Debye model so that, to account for the actual behaviour in solids, distributions of relaxation times have been postulated. It is shown that the frequency response of all solids has common features which can be generalized to give a correct pic…
Ferroelectric and Piezoelectric MaterialsMaterial Dynamics and PropertiesElectrostatics and Colloid Interactions
R.A. Lampert、Leslie A. Chewter、David. Phillips 等 6 位作者1983-01-01Analytical Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStandards for nanosecond fluorescence decay time measurementsRoger A. Lampert, Leslie A. Chewter, David. Phillips, Desmond V. O'Connor, Anthony J. Roberts, and Stephen R. MeechCite this: Anal. Chem. 1983, 55, 1, 68–73Publication Date (Print):January 1, 1983Publication Histor…
Electrochemical Analysis and ApplicationsAnalytical Chemistry and SensorsElectron and X-Ray Spectroscopy Techniques
J.P. Pouget、S. Kagoshima、C. Schlenker 等 4 位作者1983-01-01Journal de Physique Lettres
X-ray diffuse scattering studies of the quasi one-dimensional blue bronzes K0.30MoO3 and Rb0.30MoO3 show that the metal insulator phase transition observed at Tc = 180 K is accompanied by a periodic lattice distortion. Analysis of the diffuse scattering observed well above Tc shows that the lattice instability involve…
Transition Metal Oxide NanomaterialsAdvanced Condensed Matter PhysicsOrganic and Molecular Conductors Research
Ross A. Virginia、W. M. Jarrell1983-01-01Soil Science Society of America Journal
Abstract Soil was collected in 30‐cm depth increments to 90 cm from beneath Prosopis glandulosa Torr. var. glandulosa (L. Benson) M. C. Jtn. (mesquite) and from the nonvegetated area between mesquite trees in a phreatophytic stand in the Sonoran Desert of southern California. Total N, NO ‐ 3 ‐N, NH + 4 ‐N, organic C,…
Soil Carbon and Nitrogen DynamicsSoil and Unsaturated FlowClay minerals and soil interactions
I. D. Glover、I. Haneef、Jim E. Pitts 等 7 位作者1983-01-01Biopolymers
Abstract The 36‐amino acid avian pancreatic polypeptide has been studied by x‐ray analysis at 0.98‐Å resolution and refined using a restrained least‐squares technique to an agreement factor of 15.6%. The polypeptide, which has a compact globular structure with a hydrophobic core, comprises a polyproline–like helix (re…
Protein Structure and DynamicsCrystallography and molecular interactionsEnzyme Structure and Function
Noel A. Clark、Mark A. Handschy、S. T. Lagerwall1983-01-01Molecular crystals and liquid crystals
The strong linear coupling of the director ň to electric field E in ferroelectric liquid crystals can be utilized to perform high-speed electro-optic switching suitable for device applications. In this article we summarize the current understanding of the high-speed, bistable, threshold-sensitive electro-optic effects…
Liquid Crystal Research AdvancementsPlant Reproductive BiologyMolecular spectroscopy and chirality
Eileen J. Cox1983-01-01Botanica Marina
Article Observations on the Diatom Genus Donkinia Ralfs in Pritchard II. Frustular Studies and Intraspecific Variation was published on January 1, 1983 in the journal Botanica Marina (volume 26, issue 12).
Diatoms and Algae Research
Osamu Ishitani、Chyongjin Pac、Hiroshi Sakurai1983-01-01The Journal of Organic Chemistry
Reactions photosensibilisees par Ru(bpy) 3 2+ du benzyl-1 dihydro-1,4 nicotinamide avec divers composes carbonyles aromatiques conduisant a des composes d'addition 1:1 de structure nicotinamide substitue en 4. Rendements moderes. Reduction nulle ou faible en alcools correspondants. Avec la carbonyle-2,2'-bis pyridine…
Metal complexes synthesis and propertiesPorphyrin and Phthalocyanine ChemistryInorganic and Organometallic Chemistry
Michel Poulin、A. Cardinal1983-01-01Canadian Journal of Botany
Four families of diatoms, well represented in the ice microflora of Manitounuk Sound, Hudson Bay, are treated. The Entomoneidaceae (Entomoneis, 6 taxa; Plagiotropis, 2 taxa) and the Nitzschiaceae (Nitzschia, 12 taxa) have more representatives than the Cymbellaceae (Amphora, 1 taxon) and the Gomphonemataceae (Gomphonem…
Marine Biology and Ecology ResearchDiatoms and Algae ResearchIsotope Analysis in Ecology