High Resolution Deposition of Polyaniline on Pt with the Scanning Electrochemical Microscope
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Block copolymer adsorption in a nonselective solvent
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Vaughanite, TlHgSb4S7, a new mineral from Hemlo, Ontario, Canada
Abstract Vaughanite, idealized formula T1HgSb 4 S 7 , is a very rare primary constituent of the Golden Giant orebody of the Hemlo gold deposit, Hemlo, Ontario, Canada. It was found in two polished sections from one drill core; as a 450 by 300 µm aggregate associated with pääkkönenite, stibnite, realgar, and native ars…
γ-Radiolysis of 1-Substituted 5-Fluorouracil Derivatives
Abstract A new concept, “Radiation-Induced Drug (RID)”, was proposed as a novel type of drugs for cancer therapy. To test the usefulness of this concept, 5-fluorouracil (5-FU) derivatives having various types of substituents at the 1-position were prepared and the γ-radiolyses of their aqueous solutions were studied.…
Experimental Investigations of MHD Flow Tailoring for First Wall Coolant Channels of Self-Cooled Blankets
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…
EPR-derived electronic characteristics of zerovalent manganese carbonyl di(tertiary phosphine) radicals
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…
Mechano ions produced by mechanical fracture of solid polymer. 5. Cationic polymerization of isobutyl vinyl ether initiated by the mechano cation of poly(vinylidene fluoride)
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:…
Effects of artificial edge burrs on the properties of a model transformer core
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…
Transient-grating study of amorphous As2S3 films
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…
New criteria for species characterization in the genera Donkinia, Gyrosigma and Pleurosigma (Naviculaceae, Bacillariophyceae)
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…
Temperature Dependence of Plastic Deformation in White Tin Single Crystals
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.…
Selenoantimonate: Darstellung und Struktur von Na 3 SbSe 4 , K 3 SbSe 4 und [Ba(en) 4 ] 2 [Ba(en) 3 ](SbSe4) 2 / Selenoantimonates(V): Preparation and Crystal Structure of Na 3 SbSe 4 , K 3 SbSe 4 and [Ba(en) 4 ] 2 [Ba(en) 3 ](SbSe 4 ) 2
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…
19F Relaxation Rate Enhancement and Frequency Shift with Gd-DTPA
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
Alpha ‐ Ta2 O 5 : An Intrinsic Fast Oxygen Ion Conductor
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…
Hydroxylation of Alkanes Catalyzed by Manganese Tetraphenylporphyrin Immobilized on Imidazole-modified Silica Gel
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.
Potassium in Atlantic Coastal Plain Soils: I. Soil Characterization and Distribution of Potassium
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…
Role of surface bonding on liquid-crystal alignment at metal surfaces
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…
NewLi2−xCuxFeS2(0≤x≤1) andCuxFeS2(∼0.25≤x≤1) phases
${\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…
Atomistic calculations of point-defect interaction and migration energies in the core of an edge dislocation in NaCl
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…
A Comparison of Mineral Weathering Trends Between Two Management Systems on a Catena of Loess‐Derived Soils
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…