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。
Hydrothermal experiments with fresh basalt in a high pS 2 environment yielded cordierite–sulfide-bearing assemblages. These results suggest that during thermal metamorphism of a volcanic exhalative sulfide deposit, progressive sulfurization of the enclosing basalts takes place. Cordierite–anthophyllite and cordierite–…
An extensive computer program has been developed to check the internal consistency of published, numeric, crystallographic data prior to storage in the data files of the Cambridge Crystallographic Data Centre. The coding is in Fortran IV for an IBM 3701165 with 1 megabyte store. The atomic coordinates, constitution an…
Abstract A mathematical representation of the plasticating process in a reciprocating‐screw injection‐molding machine has been formulated as a design tool for simulating the effect of processing parameters on the melting performance, the melt temperature, and the pressure profile. Comparisons with experimental data on…
The dose dependence of the lattice parameter change for neutron-irradiated copper has been measured in the range (1.0–10.8)×1018 neutrons/cm2. The lattice parameter changes were measured directly by using a multiply reflecting monochromator, and an analysis of the effects of misalignment in the geometry has been given…
Longitudinal and transverse relaxation times of 119Sn have been measured as a function of temperature at several field strengths in SnCl4, SnBr4, and SnI4. T2 in all three liquids is field independent and is governed by scalar coupling to the halogen. T1 is strongly field dependent in SnBr4 and SnI4 and exhibits a min…
Crystallization during melt spinning is studied as an example of the nonisothermal crystallization of polymers. The following equation is derived, taking the temperature distribution within a filament into consideration: where T = temperature, X = crystallinity, κ = thermal diffusivity, V = velocity, ΔH = heat of crys…
The packings considered in this paper are packings of a unit sphere in iV-dimensional Euclidean space by an infinite number of unequal spheres. More specifically, we are interested in complete packings, those which exhaust the volume of the packed sphere.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPorphyrin-annulene redox-related ligand pair. Electrochemical synthesis and characterization of the reduction products of the cobalt, copper, and nickel complexes of a tetraaza[16]annuleneNurhan Takvoryan, Keith Farmery, Vladimir Katovic, Frank V. Lovecchio, Ernest S. Gore,…
In a study on the mechanism of pitting corrosion, a gas evolution in the pit has been observed. This gas has been gaschromatographically identified as hydrogen. The explanation of the evolution of hydrogen by the acidification of the pit electrolyte and the potential drop across the pit have been experimentally proved…
<div class="htmlview paragraph">The analysis method presented in this paper provides a systems approach to determine the influence of body connection flexibility upon automobile body structural response. In this approach, a baseline finite element model is created to simulate the in-plane response of the passeng…
A model for cholesteric liquid crystals with biaxial molecules is introduced. It is found that the biaxial order parameter for such systems is of order ${({q}_{0}a)}^{2}$ where $a$ is a molecular length and ${q}_{0}=\frac{2\ensuremath{\pi}}{p}$ where $p$ is the helical pitch. The generalized susceptibility is calculat…
Negatively charged titanium and zirconium complexes with α-hydroxy carboxylic acids and fluorides can be exhausted on the positively charged wool fibre in acid conditions, the result being a significant improvement in the natural flame-resistance of wool that is fast to washing and dry-cleaning. The complexes with car…
For part 2, see Am. Jour. Sci., Vol. 272, p. 840, 1972; see also this Bibliography, Berner and Morse, 05
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSquare-planar transitioin metal complexes with tetradentate thioiminato Schiff base ligandsPatricia R. Blum, Richard M. C. Wei, and Sue C. CummingsCite this: Inorg. Chem. 1974, 13, 2, 450–456Publication Date (Print):February 1, 1974Publication History Published online1 May 2…
Article Notizen: Zur Struktur ternärer Chalkogenide des Thalliums mit Aluminium, Gallium und Indium, XXII* / On the Structure of Ternary Thalliumchalkogenides with Aluminium, Gallium and Indium, XXII* was published on February 1, 1974 in the journal Zeitschrift für Naturforschung B (volume 29, issue 1-2).
We examine the temperature and frequency dependence of the proton spin-lattice relaxation rate $\frac{1}{{T}_{1}}$, as a probe of the electron-spin dynamics of the quasi-one-dimensional exchange-coupled paramagnet TMMC [${(\mathrm{C}{\mathrm{H}}_{3})}_{4}$ NMn${\mathrm{Cl}}_{3}$]. The rate is measured from 5.5-16 MHz…
Abstract The kinetics of isothermal crystallization from the glassy state at low temperatures and the morphology of poly(ethylene terephthalate) (PET) filled with additives are reported. Talc, kaolin, silicon oxide, and titanium oxide have been used as fillers; they act as effective nucleating agents for PET. The over…
Abstract The synthesis, dilute solution characterization, and thermal analysis of seven polyaryloxyphosphazenes are described. Synthesis is accomplished by the ring‐opening polymerization of hexachlorocyclotriphosphazene at 245°C, followed by reaction of polydichlorophosphazene with sodium aryloxide salts in solution…
Previous studies indicated that the ability of thiols to mimic insulin action on fat cell glucose oxidation and lipolysis was dependent on Cu2f.Evidence now presented indicates that HzOz formed by the reaction of thiols, Cu2+, and 02 mediates the effects of these agents on isolated fat cells.Oxidation of thiols to the…
An algorithm to calculate the energy deposition distribution produced by monoenergetic fast electrons normally incident on the semi-infinite absorber is given. While the algorithm is based on an elementary relation that is also a basis of similar work by Kobetich and Katz, higher accuracy has been attained and the reg…