Materials Literature
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Results of experiments on the concept of flow tailoring, the use of salient features of MHD flows in strong magnetic fields to create desirable velocity profiles in the coolant ducts of the first wall and the blanket, are reported. Proof-of-principle testing of flow tailoring has been chosen as the first joint activit…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEPR-derived electronic characteristics of zerovalent manganese carbonyl di(tertiary phosphine) radicalsGail B. Rattinger, R. Linn Belford, Howard Walker, and T. L. BrownCite this: Inorg. Chem. 1989, 28, 6, 1059–1066Publication Date (Print):March 1, 1989Publication History Pu…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMechano ions produced by mechanical fracture of solid polymer. 5. Cationic polymerization of isobutyl vinyl ether initiated by the mechano cation of poly(vinylidene fluoride)Masato Sakaguchi, Hiromu Kinpara, Yasuro Hori, Shigetaka Shimada, and Hisatsugu KashiwabaraCite this:…
Edge burrs are known to cause increases in losses of large power transformers but it is difficult to quantify their effect. A single phase experimental transformer core was prepared with arrays of thermistors to measure the localised loss when artificial burrs were introduced in a controlled manner. When laminations w…
Dynamics of the photoinduced refractive-index change in glassy As2S3 excited by pulsed light have been studied using a novel transient-grating technique, in which the grating is produced by projecting comb-filter images. Monotonic relaxations in the μs region are observed at room temperature and at 80 K. The results a…
Four structural components of the valves of Donkinia Ralfs, Gyrosigma Hassall and Pleurosigma W. Smith have been described and illustrated using scanning electron microscopy for several taxa belonging to these genera. Their use is suggested for a better circumscription of the taxa. These elements are, internally, the…
Tensile experiments have been carried out over a wide range of temperatures on single crystals of high-purity white tin with low dislocation density. From the observations of slip lines it is found that different slip systems are activated for different temperature regions and for different orientations of specimens.…
Abstract The crystal structures of Na 3 SbSe 4 , K 3 SbSe 4 and [Ba(en) 4 ] 2 [Ba(en) 3 ](SbSe 4 ) 2 contain isolated tetrahedral anions SbSe 4 3- , which are the first examples of selenoantimonates(V). Na 3 SbSe 4 (space group 143m , a = 750.1(2) pm, Z = 2) is an isotype of the (NH 4 ) 3 SbS 4 -structure type; K 3 Sb…
RATNER, ADAM V. MD; QUAY, STEVEN MD, PhD; MULLER, HOLDE H. MS; SIMPSON, BEVERLY BRADLEY BS; HURD, RALPH PhD; YOUNG, STUART W. MD Author Information
Nonstoichiometry and charge transport properties of have been investigated as functions of doping level, temperature, and thermal history. Undoped and single‐crystals and undoped, , , , , , and polycrystalline specimens of have been characterized using complex impedance techniques. The magnitude of ionic conductivitie…
Abstract Immobilization of Mn(TPP)Cl (TPP = tetraphenylporphyrin) onto 3-imidazolylpropyl-modified SiO2 resulted in enhancement of its activity for hydroxylation of cyclohexane; the support prevented the complex from forming a dimer leading to oxidative destruction.
Abstract Corn ( Zea mays L.) grown on sandy Atlantic Coastal Plain soils is often unresponsive to applications of K fertilizer. As part of a field study on the response of irrigated, intensively managed corn to K applications, we characterized four representative Hapludults from the Delaware Coastal Plain and evaluate…
The alignment of a nematic liquid crystal, 4'-n-pentyl-4-cyanobiphenyl (5CB), on several smooth metal (Cr, Cu, Ag, and Au) surfaces was observed experimentally. Perpendicular (homeotropic) induced alignment was observed for Cu and Ag boundary layers, whereas parallel alignment was observed for Cr and Au. These differe…
${\mathrm{Li}}_{2\mathrm{\ensuremath{-}}\mathrm{x}}$${\mathrm{Cu}}_{\mathrm{x}}$${\mathrm{FeS}}_{2}$ forms a solid solution for 0\ensuremath{\le}x\ensuremath{\le}1. The crystal structures of ${\mathrm{LiCuFeS}}_{2}$ [a=3.807(2) A\r{} and c=6.352(1) A\r{}] and ${\mathrm{Li}}_{1\mathrm{\ensuremath{-}}\mathrm{\ensuremath…
Point-defect-dislocation interaction and migration energies within the core of an edge dislocation have been calculated using atomistic models. Point-ion as well as shell and breathing-shell models have been used. For vacancies, the greatest binding energies are at the dislocation's edge and are from three to four tim…
Abstract This study was an attempt to predict potential long‐term mineralogical transformation trends in soils under continuous no‐tillage management using the in situ soil solution composition as a sensitive index of changes occurring in the soil system. Mineralogical and soil solution compositions of surface and sub…
Micro-Raman spectroscopy has been utilized to examine the spectra of solid samples of α-UF 5 , β-UF 5 , UF 6 , three types of UO 2 F 2 , the powder residue from a static UF 6 release, and γ-UO 3 . The spectra are presented and compared to previous literature values, with new features indicated where appropriate. With…
Abstract Use of promoter dimethylsulfoxide (DMSO) in conjunction with initiator normal butyllithium has resulted in rapid and controllable ring‐opening polymerization of 1,3,5‐tris‐(3′,3′,3′‐trifluoro‐propyl)1,3,5‐trimethylcyclotrisiloxane at 40°C; monomer consumption rate can be varied by at least four orders of magn…
The results of the rapid quenching from the melt of the pure metals (In, Pb) at high pressures 0.7-8.0 GPa with a cooling rate ~ 10 3 K s −1 are presented. The supercooling of the melt was measured, and the high pressure influence on the basic parameters of the solidification process are analysed. The short-range orde…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThermal behavior of several hyperquenched organic glassesG. P. Johari, Andreas Hallbrucker, and Erwin MayerCite this: J. Phys. Chem. 1989, 93, 6, 2648–2652Publication Date (Print):March 1, 1989Publication History Published online1 May 2002Published inissue 1 March 1989https:…