Atomizing molten metals — a review
(1973). Atomizing molten metals — a review. Canadian Metallurgical Quarterly: Vol. 12, No. 3, pp. 309-322.
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Reaction of phenyl isocyanate with N-methyl-2-pyrrolidinone
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTReaction of phenyl isocyanate with N-methyl-2-pyrrolidinoneReinhard Richter and Henri UlrichCite this: J. Org. Chem. 1973, 38, 15, 2614–2617Publication Date (Print):July 1, 1973Publication History Published online1 May 2002Published inissue 1 July 1973https://pubs.acs.org/do…
Stop bands for optical wave propagation in cholesteric liquid crystals*
The stop-band characteristics of waves in cholesteric-liquid-crystal half-space are investigated using the exact wave solution, the Floquet theorem, and the corresponding Brillouin diagram. The other half-space is filled with a uniform dielectric medium. By appropriate choice of the dielectric constant of the uniform…
Vibrational spectra of some Group Vb halides. III. A far-infrared and Raman spectral study of some Hexahalogeno-, Pentahalogeno-, and Tetrahalogeno-bismuthate(III) and -antimonate(III) salts
Vibrational spectra of a series of halogeno-complex ions of antimony(III) and bismuth(III) are reported. Results of crystal spectra are discussed in terms of the structural environment and a comparative study of Raman solution and solid state spectra is given. Some force constants for hexahalogeno species on a modifie…
Heat capacities of polyethylene from 2 to 360 K. I. Standard samples of linear and branched polyethylene whole polymer
Heat capacities of two well characterized polyethylene samples have been measured from 2 to 360 K in a precision vacuum adiabatic calorimeter. The two samples are derived from the same stocks from which NBS standard reference materials (SRM) 1475 and 1476 for linear and branched polyethylene whole polymers, respective…
The origin dependence of Wyckoff site description of a crystal structure
When describing a crystal structure in terms of the Wyckoff sites occupied, equivalent alternatives often arise because the choice of origin of coordinates is subject to arbitrariness remaining within the standard choice in International Tables for X-ray Crystallography. The problem is explained and simple tables whic…
Infrared and Raman spectra of lithium and ammonium nitrate solutions in liquid ammonia
Vibrational spectra, most of them obtained from Raman scattering, are reported for LiNO3 and NH4NO3 solutions in liquid ammonia, ranging from dilute to the compositions LiNO3/1.6NH3 and NH4NO3/1NH3. All the spectra were obtained from solutions at ambient temperatures. Large changes in the N–H stretching region are cor…
Water binding and irreversible dehydration processes in cellulose acetate membranes
Abstract The relative amounts of freezing and nonfreezing water in various water‐wet cellulose acetate (CA) membranes were determined by NMR techniques, from the initial heights of the water component in the free induction decay (MNR intensity). The results suggest that (1) a significant fraction of the water in vario…
Raman Scattering by α‐HgS (Cinnabar)
Abstract Raman scattering is observed in first and second order by optically active phonons in mercury sulphide HgS having the cinnabar structure (α‐HgS). For the first time these spectra could be obtained in polarised light and interpreted using selection rules derived by group theoretical considerations. The experim…
High Frequency Conductivity in Cobalt-Iron Ferrite
The frequency dependence of the ac conductivity of polycrystalline cobalt-iron ferrite Co 3- x Fe x O 4 (1.89≦ x ≦2.08) has been measured in the frequency range 1 kHz∼200 MHz and the temperature range 130∼300 K. The measured conductivity can be expressed as the sum of two kinds of conductivity σ 1 and σ 2 . σ 1 corres…
Kerr response of nematic liquids
The Kerr response of seven nematic substances has been measured just above their nematic-isotropic transition temperature, in their isotropic state. If the reciprocal of the Kerr constant B is plotted against temperature, a linear relationship analogous to the Curie-Weiss dielectric relationship in ferroelectrics is f…
Liquid-phase sintering of magnetically isotropic and anisotropic compacts of BaFe12O19 and SrFe12O19
This report shows that magnetically isotropic and anisotropic compacts of BaFe12O19 or SrFe12O19 sinter to high density with controlled microstructure in the presence of a liquid phase. The liquid-phase compositions are in the systems MO–SiO2 and MO–Al2O3–SiO2, M=Ba, Sr. Further, it is shown that systems containing MB…
Tungstovanadate heteropoly complexes. IV. Vanadium(IV) complexes
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTungstovanadate heteropoly complexes. IV. Vanadium(IV) complexesC. M. Flynn, Jr. and M. T. PopeCite this: Inorg. Chem. 1973, 12, 7, 1626–1634Publication Date (Print):July 1, 1973Publication History Published online1 May 2002Published inissue 1 July 1973https://pubs.acs.org/d…
Spectral losses of unclad fibers made from high-grade vitreous silica
Spectral loss measurements performed between 0.5 and 1.15 μm with up to 32-m-long unclad fibers drawn from Suprasil W1, Spectrosil WF, and Corning 7943 synthetic vitreous silica demonstrated that bulk glasses with total losses well below 10 dB/km at certain wavelengths of interest for future optical communication syst…
Regulation of Intracellular Proteolysis in Escherichia coli
Individual nitrogenous metabolites have been examined as regulating agents for the breakdown of intracellular proteins in Escherichia coli. Generally, NH(4) (+) is the most effective regulator. Its depletion progressively increases the basal proteolytic rate to maximum in most strains when the doubling time is increas…
A hand-held friction meter
A portable hand‐held friction meter has been devised which will measure the coefficient of friction between a reference material and skin at any body site regardless of position. The reference surface can be made of any of a number of materials, such as steel, nylon, PTFE, leather or even fabrics. The effects of disea…
Nickel and Chromium Plating
"Nickel and Chromium Plating." British Corrosion Journal, 8(4), p. 147
On the space group of MgAl2O4spinel
[001] electron diffraction patterns of MgAl2O4 spinel show (hk0) reflections with h + k = 4n + 2 ((200), (420), etc.) that violate the accepted Fd3m space group of this material. Since these ‘forbidden’ reflections cannot be attributed to double diffraction, non-zero Laue zones, or a second phase, this result is consi…
Porphyrins. XXIX. Crystal and molecular structure and luminescence of bis(dimethylamine)etio(I)porphinatorhodium(III) chloride dihydrate
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPorphyrins. XXIX. Crystal and molecular structure and luminescence of bis(dimethylamine)etio(I)porphinatorhodium(III) chloride dihydrateLouise Karle. Hanson, Martin. Gouterman, and Jonathan C. HansonCite this: J. Am. Chem. Soc. 1973, 95, 15, 4822–4829Publication Date (Print)…
Structure refinement of potassium chloroplatinate by powder and single-crystal methods
The crystal structure of potassium chloroptatinate, K2PtCI6, has been refined from both single-crystal and powder X-ray diffraction data. The system is cubic, space group Fm3m with a= 9.751 +_ 0.005 A. The measured density is 3-47 + 0-01 g cm -a and the calculated density for Z = 4 is 3.478 g cm -3. Interatomic distan…