J.L. Kaae1977-09-01Nuclear Technology
The stresses and strains generated in the outer pyrocarbon (PyC) coating of a two-layer Biso fuel particle coating during irradiation are analyzed to include very significant PyC property changes during irradiation. These property changes are not included in other analyses. The most significant change is in the anisot…
High Temperature Alloys and CreepNuclear Materials and PropertiesNuclear and radioactivity studies
H. V. Lauer、R. V. Morris1977-09-01Journal of the American Ceramic Society
Experimental studies were made on the compositional dependence of the redox equilibrium of Eu in synthetic silicate liquids, together with an empirical model describing the observed compositional dependence. Electron paramagnetic resonance (EPR) was used to measure the concentration ratio of Eu 2+ to Eu 3+ in various…
Luminescence Properties of Advanced MaterialsGlass properties and applicationsNuclear materials and radiation effects
Alan R. Greenberg、Ihab Kamel1977-09-01Journal of Polymer Science Polymer Chemistry Edition
Abstract The kinetics of anhydride formation of poly(acrylic acid) (PAA) in porous PAA–alumina composites have been investigated by using a thermogravimetric technique (TGA). Three distinct reaction peaks at 200°C (I), 250°C (II), and 390°C (III) were identified in the dynamic TGA thermogram. These peaks were attribut…
Polymer Nanocomposites and Propertiesbiodegradable polymer synthesis and propertiesThermal and Kinetic Analysis
Antonio L. DeVera、William Strieder1977-09-01The Journal of Physical Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTUpper and lower bounds on the thermal conductivity of a random, two-phase materialAntonio L. DeVera Jr. and William StriederCite this: J. Phys. Chem. 1977, 81, 18, 1783–1790Publication Date (Print):September 1, 1977Publication History Published online1 May 2002Published inis…
Graphene research and applicationsThermal properties of materialsAdvanced Thermodynamics and Statistical Mechanics
Masao Kawachi、Osamu Kogure1977-09-01Japanese Journal of Applied Physics
The effects of bias voltages on the field-induced nematic-cholesteric relaxation are investigated both for samples with perpendicular boundaries and for ones with parallel boundaries, and are discussed in relation to the hysteresis behavior of texture. When the applied voltage is reduced from a value above the thresho…
Liquid Crystal Research AdvancementsMaterial Dynamics and PropertiesTheoretical and Computational Physics
Yutaka Iwata1977-09-01Journal of the Physical Society of Japan
The structure of paraelectric phase of Pb 5 Ge 3 O 11 was refined by the least squares calculations of single crystal neutron diffraction data at 200°C. Final R value was 0.08 and the type of phase transition was determined as displacive one. The existence of unstable oxygen atom which is lying on the mirror plane per…
Glass properties and applicationsAcoustic Wave Resonator TechnologiesSolid-state spectroscopy and crystallography
R. A. Eggleton1977-09-01Clay Minerals
Abstract Chemical and X-ray analysis of eight samples of nontronite are consistent with the Hofmann et al. montmorillonite structure. The finest fraction of some fully hydrated (15·3 Å) samples is composed of crystals all about 6 or 7 unit cells thick, and having 12 H 2 O per 8 Si, arranged at three levels in the inte…
Concrete and Cement Materials ResearchClay minerals and soil interactionsX-ray Diffraction in Crystallography
F. R. Schoeman、R.E.M. Archibald1977-09-01OpenAlex
The diatoms flora of Southern Africa No.3. Shcoeman, FR and Archibal, REM. CSIR Special report WAT 50, September 1977
Diatoms and Algae Research
Sandra S. Eaton、Gareth R. Eaton1977-09-01Journal of the American Chemical Society
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEffects of para substituent and metal ion on rates of phenyl ring rotation in ruthenium, indium, and titanium complexes of para-substituted tetraphenylporphyrinsS. S. Eaton and G. R. EatonCite this: J. Am. Chem. Soc. 1977, 99, 20, 6594–6599Publication Date (Print):September…
Molecular Sensors and Ion DetectionPorphyrin and Phthalocyanine ChemistryMolecular spectroscopy and chirality
Dennis R. Dean、J A Hoch、Arthur I. Aronson1977-09-01Journal of Bacteriology
A mutational leading to glutamine auxotrophy was located near a 5-fluorouracil resistance marker in the citB-thyA region of the Bacillus subtilis chromosome. This mutation resulted in a glutamine synthetase with altered kinetic and feedback properties. The specific activity of manganese-stimulated glutamine synthetase…
Microbial Metabolic Engineering and BioproductionEnzyme Structure and FunctionAmino Acid Enzymes and Metabolism
P. G. GRIMSLEY、Leonard F. Lindoy、HC Lip 等 5 位作者1977-09-01Australian Journal of Chemistry
Facile syntheses for new 14-, 15-, and 16-membered crown compounds derived from salicylaldehyde and 5-chlorosalicylaldehyde are reported. The new compounds contain both oxygen and nitrogen heteroatoms.
Crystal structures of chemical compoundsMolecular Sensors and Ion DetectionPolyoxometalates: Synthesis and Applications
J. A. Veith、Garrison Sposito1977-09-01Soil Science Society of America Journal
Abstract The formation of X‐ray amorphous analogs of variscite and Namontebrasite was demonstrated to occur when Al 2 O 3 · n H 2 O, synthetic allophanes, and allophanic soils were reacted with sodium o ‐phosphates, Na 3‐ A H A PO 4 , of varying acidity A . The formation of the two amorphous Al‐phosphates, Al(OH) 2 H…
Arsenic contamination and mitigationClay minerals and soil interactionsIron oxide chemistry and applications
G S Assarian、Donald Oberleas1977-09-01Clinical Chemistry
A pooled sample of hair was divided and portions prepared for analysis by three washing procedures, to evaluate the effect of washing procedure on the subsequent trace-element (Zn, Cu, Mg) content. The methods selected were a detergent wash, a hexane-ethanol wash, and an acetone-ether-detergent wash. For all elements,…
Dyeing and Modifying Textile FibersTextile materials and evaluations
D.B. Black、Edward G Lovering1977-09-01Journal of Pharmacy and Pharmacology
The X-ray procedure for estimation of the degree of crystallinity in digoxin is based upon measurement of the total X-ray scattering and the scattering from crystalline regions of the drug. The infrared procedures are based upon measurement of the peak height ratios, 1775/1618 and 3095/1618 cm-1. Correlation between r…
Crystallography and molecular interactionsCrystallization and Solubility StudiesX-ray Diffraction in Crystallography
Cortlandt G. Pierpont、Lynn C. Francesconi、David N. Hendrickson1977-09-01Inorganic Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMagnetic exchange interactions in transition metal dimers. 11. Structural and magnetic characterization of [Ni2(tren)2(C6O4Cl2)](BPh4)2 and [Cu2(Me5dien)2(C6O4Cl2)](BPh4)2. Magnetic exchange interactions propagated by the dianions of 2,5-dihydroxy-1,4-benzoquinonesCortlandt…
Magnetism in coordination complexesInorganic and Organometallic ChemistryMolecular spectroscopy and chirality
S.K. Mohapatra、F. A. Kröger1977-09-01Journal of the American Ceramic Society
Titanium‐doped α‐Al 2 O 3 exhibits a high‐temperature conductivity which is ionic at high oxygen pressures and electronic at low oxygen pressures. Both are isotropic. The temperature dependence of conductivity under conditions where equilibrium with the atmosphere is not maintained indicates both the position of the e…
Advanced ceramic materials synthesisMetal and Thin Film MechanicsSemiconductor materials and devices
M. L. W. Thewalt1977-09-01Canadian Journal of Physics
The high resolution photoluminescence spectra reported here reveal new details of the structure of both bound excitons and bound multiexciton complexes in donor and acceptor doped Si. The bound exciton and bound multiexciton complexes in Si containing P impurities are found to have excited states, as was postulated in…
Silicon and Solar Cell TechnologiesSilicon Nanostructures and PhotoluminescenceSemiconductor materials and interfaces
Carlos J. Serna、Joe L. White、Stanley L. Hem1977-09-01Soil Science Society of America Journal
Abstract The interaction of the nitrate, sulfate, and carbonate anion with aluminum hydroxide gel was studied by infrared spectroscopy. A lowering in the anion symmetry due to the interaction with the aluminum hydroxide surface was observed. Evidence suggests that the nitrate anion interaction is outside of the coordi…
Iron oxide chemistry and applicationsLayered Double Hydroxides Synthesis and ApplicationsElectrostatics and Colloid Interactions
W. F. Verhelst、K. G. Wolthuis、Andries Voet 等 5 位作者1977-09-01Rubber Chemistry and Technology
Abstract The low electrical resistance of vulcanizates loaded with conductive carbon blacks in a given particle size range is cause by the low density of the particles, high structure, or both. In addition, the smaller the particle size of the black, the lower the resistivity. The same factors also cause high modulus…
Polymer Nanocomposites and PropertiesFiber-reinforced polymer compositesSynthesis and properties of polymers
Roger Walz、Bruno Bömer、Walter Heitz1977-09-01Die Makromolekulare Chemie
Abstract The reaction of ethylene glycol, 1,4‐butanediol, 1,6‐hexanediol, 3,6‐dioxaoctane‐1,8‐diol (triethylene glycol), poly(ethylene oxide)s with M̄ n = 300,1000 and 3000, or with poly(propylene oxide)s with M̄ n = 425 and 2000 in excess with AIBN leads to the corresponding bis(hydroxyalkyl) 2,2′‐azodiisobutyrates (…
Advanced Polymer Synthesis and CharacterizationCarbon dioxide utilization in catalysisSynthesis and properties of polymers