Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
The corrosion resistance of various Ti-Ru alloys (0.07 to 0.55 Wt% Ru) has been evaluated and compared with published data on Ti-Pd alloys. The results show that Ti-Ru alloys (1) are comparable with Ti-Pd alloys in terms of corrosion resistance in dilute (0 to 10%) boiling H2SO4 solutions, and are only slightly inferi…
info:eu-repo/semantics/published
A practical method for calculating Clebsch−Gordan coefficients for crystal space groups is presented. It is based on properties of the space group irreducible representations as induced from ray representations of subgroups. Using this method, we obtain all Clebsch−Gordan coefficients for a family of representations i…
Using a double Townsend (uniform field) ionization chamber, the authors studied the ion conversion reactions involving SF 6 - and SF 5 - in SF 6 by observing, with mass spectrometer sampling, the processes occurring when these ions were injected separately from the source region into that where collisional detachment…
Tryptophanase from Escherichia coli B/qt 7-A and tyrosine phenol-lyase (beta-tyrosinase) from Escherichia intermedia were immobilized on Sepharose 4B by several direct coupling reactions or through pyridoxal 5'-phosphate previously bound to Sepharose. The most active preparation of immobilized tryptophanase was obtain…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMagnetic and electrochemical properties of transition metal complexes with multiple metal-to-metal bonds. IV. Octachlorodimolybdate(n-) with n = 3 and 4 and tetrabutyratodimolybdate(n+) with n = 0 and 1F. Albert Cotton and Erik PedersenCite this: Inorg. Chem. 1975, 14, 2, 39…
General method to treat the scattering of lattice waves by static strain fields in anisotropic solids was applied to the calculation of thermal conductivity of crystals containing dislocations. The scattering cross widths for edge and screw dislocations in cubic crystals with {111} <110> and {110} <110> slip systems w…
The order of the phase transition within a long polymer molecule in dilute solution brought about by the intramolecular forces is investigated within the context of a lattice model. It is found that the entropy is continuous at the transition but that the density changes discontinuously, implying that the transition h…
We have measured the polarized (I∥) and the depolarized (I⊥) scattered light intensities by fluctuations of the orientational order parameter as a function of two scattering angles over a range of temperatures close to and above the isotropic−nematic phase transition of para−methoxybenzylidine para−n−butylaniline (MBB…
Abstract The thermal conductivity of segregated distributions of poly (vinyl chloride)/nickel (PVC/Ni) and poly(vinyl chloride)/copper (PVC/Cu) was measured for volume fractions ranging from 0 to 0.15. The thermal conductivities increased from 0.15 Btu/hr ft °F for unmodified PVC to 2.79 Btu/hr ft °F for PVC/15 percen…
Sulfhydryl reagents, as well as mild hydrogen peroxide oxidation, do not inhibit the activity of yeast phosphoglycerate kinase, indicating that the single thiol group and 3 methionine residues present in the enzyme are not essential for activity. Nitration of phosphoglycerate kinase by tetranitromethane inhibits the e…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCrystal and molecular structures of ion radical molecular complexes of cis-bis(trifluoromethylethylene-1,2-dithiolato)nickel with phenothiazine and phenoxazine. Effects of donor-acceptor separation on the molecular propertiesAnami. Singhabhandhu, P. D. Robinson, J. H. Fang,…
Abstract The deformational, swelling, and potentiometric behavior of poly(methacrylic acid) gels was measured as a function of the degree of crosslinking, ionic strength, and degree of ionization. The comparison of the stress–strain behavior with theoretical relations derived in the preceding part has shown that the r…
The first-order Raman spectrum of single-crystalline PhTi${\mathrm{O}}_{3}$ in the teatragonal ferroelectric phase was studied at room temperature as a function of hydrostatic pressure up to 80 kbar. Mode Gr\"uneisen parameters, as well as higher-order coefficients in the expansion of phonon frequency vs pressure are…
Long-spacing-segment crystallites prepared from type III collagen with the chain composition [alpha1(III)]3 and type I collagen with the chain composition [alpha(I)]i12alpha2 have been compared in the electron microscope after positive. staining with phosphotungstic acid and uranyl acetate. The comparison revealed sev…
A procedure is described in this paper for distinguishing in the measured electrical properties of polycrystalline β‐alumina, the separate contributions of the grain boundaries and of the crystal, i.e. , the grain interiors. This separation is brought about through the use of a model for these properties. Certain quan…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhysical adsorption of patchwise heterogeneous surfaces. I. Heterogeneity, two-dimensional phase transitions, and spreading pressure of the krypton-graphitized carbon black system near 100.deg.KFrederick A. Putnam and Tomlinson Fort Jr.Cite this: J. Phys. Chem. 1975, 79, 5,…
A two−phase material in which the phase boundaries are cylindrical surfaces is considered. The generators of the phase boundaries are parallel to the z axis and the x and y axes are the principal axes of the effective conductivity tensor. If the two phases have conductivities σ1 and σ2, then the effective conductivity…
A procedure is described to utilize blue dextran-Sepharose as an affinity chromatographic column specific for the super-secondary structure called the dinucleotide fold, which forms the binding sites for substrates and effectors on a wide range of proteins. The procedure can be used to identify proteins, either purifi…
It has been observed here that the K edge of strontium is shifted towards the high energy side in all its compounds with respect to strontium metal. These shifts have been correlated, qualitatively with the interatomic distances and the per cent ionic character of the bonds in simple compounds. A graph of observed shi…