Secondary Calcium Solid Electrolyte High Temperature Battery
Abstract not Available.
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Salinization in Northeast Thailand
of its plateau-
Synthesis of poly (vinylcatechols)
Abstract Five vinylcatechol precursors have been synthesized by either alcohol dehydration or Wittig coupling techniques. Dehydration of the appropriate sec ‐phenethyl alcohol is the most efficient synthetic approach: the following monomers (yields) are reported: 5‐vinyl‐1,3‐benzodioxole, I (63%); 3,4‐dimethoxystyrene…
Total-atom differential coherent-scattering cross-section measurements on Sn and Pb using moderate-energyγrays
Accurate, O(5%) measurements of total-atom differential coherent-scattering cross sections of Sn and Pb within the range of scattering angles 10?(de60\ifmmode^\circ\else\textdegree\fi{} have been performed using 279.2and Comparison, with the predictions of Kissel, Pratt, and Roy and the various form-factor formulation…
Hydrogen Diffusion and Permeation through Duplex Membrane of Cu–Ni and Cu–Fe
In order to understand the hydrogen permeation phenomena in multiple metal layers, the time dependent permeation rates for duplex membranes of Cu–Ni and Cu–Fe have been systematically measured under hydrogen pressures from 103 to 105 Pa at temperatures from 500 to 1000 K, and the obtained results are compared with the…
Photocontrol of polypeptide membrane functions by cis-trans isomerization in side-chain azobenzene groups
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhotocontrol of polypeptide membrane functions by cis-trans isomerization in side-chain azobenzene groupsTakatoshi Kinoshita, Morimasa Sato, Akira Takizawa, and Yoshiharu TsujitaCite this: Macromolecules 1986, 19, 1, 51–55Publication Date (Print):January 1, 1986Publication H…
Synthesis of linear poly(4‐vinylbenzaldehyde) by means of anionic living polymerization of 1,3‐dimethyl‐2‐(4‐vinylphenyl)imidazolidine and subsequent hydrolysis
Abstract Poly(4‐vinylbenzaldehyde)s ( 4 ) of known chain lengths and of narrow molecular weight distributions (M̄ w /M̄ n ≈ 1,1) were synthesized by means of anionic living polymerization of 1,3‐dimethyl‐2‐(4‐vinylphenyl)imidazolidine ( 1 ) with oligo[α‐methylstyryl]potassium ( 2 ) and subsequent acid hydrolysis to re…
Microheterogeneous photooxidation
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMicroheterogeneous photooxidationD. C. Neckers and Jerzy. PaczkowskiCite this: J. Am. Chem. Soc. 1986, 108, 2, 291–292Publication Date (Print):January 1, 1986Publication History Published online1 May 2002Published inissue 1 January 1986https://pubs.acs.org/doi/10.1021/ja0026…
The diatom genus Thalassiosira: species from the San Francisco Bay system
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Studies on borate esters IV. Structural analysis of borate esters of polyhydroxycarboxylates in water using 13C and 1H NMR spectroscopys
Abstract A combined 13 C and 1 H NMR study on borate esters of a series of polyhydroxycarboxylates is presented. 13 C substituent effects upon borate ester formation, as obtained from a set of model compounds, established that borate esters of the threo ‐3,4‐diol functions of gluconate, glucarate, idarate and probably…
Thermal decomposition of solid sodium bicarbonate
The thermal decomposition of solid sodium bicarbonate has been studied in the temperature range 360–500 K over a range of partial pressures of carbon dioxide. The effect of water vapour has also been studied. Above 440 K the reaction follows contracting-cube kinetics with an activation energy of 32 kJ mol–1 and a freq…
Scanning electron microscopy of uncoated fossils
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Ecological studies on the littoral attaching micro-algae. VII. Adhesive strength of epiphytic diatoms on various seaweeds.
Epiphytic diatoms on the natural seaweeds (seven brown-algae, two red-algae and one green alga) were fractionated by the five step separating treatments of shaking and rubbing. The order of adhesive strength of diatom species was determined from the recovery patterns of each diatom obtained through the five step separ…
Inhibition of Pitting of Type 304L Stainless Steel by N‐Lauroylsarcosine
The resistance of Type 304L SS to localized corrosion by aqueous chloride solutions is increased by addition of N‐lauroylsarcosine (NLS). The effects of N‐lauroylsarcosine concentration, chloride concentration, p H, and metal surface prepassivation on the efficiency of pitting inhibition were investigated. Linear curr…
Structural Study on the Cubic to Tetragonal Transformation in Arc-melted ZrO<SUB>2</SUB>-3 mol%Y<SUB>2</SUB>O<SUB>3</SUB>
A herringbone structure observed in an as arc-melted specimen was investigated using XRD, TEM and surface relief study. The specimen was cooled on a water cooled copper hearth and the grain size was approximately 1 mm. The results confirmed the crystal structure to be tetragonal (at=0.5100 and ct=0.5166 nm, c⁄a=1.0129…
Properties of Mullite Powder Prepared by Coprecipitation and Microstructure of Fired Bodies
A mullite powder was prepared from aluminum isopropoxide and methyl silicate by coprecipitation using a dilute ammonium aqueous solution. Properties and microstructure of fired bodies were examined. The results were compared with those from a sol mixture (SM) and oxide mixture (OX). The coprecipitated powder (Cp), the…
Mechanism for the Dehydroxylation of Kaolinite, Dickite, and Nacrite from Room Temperature to 455°C
The mechanism for the dehydroxylation of Keokuk kaolinite, dickite, and nacrite (Al 2 Si 2 O 5 (OH) 4 ) was investigated in detail with the aid of powder X‐ray diffraction, the Rietveld method, and infrared spectroscopy. It was determined that these polymorphic clay minerals dehydroxylate via an inhomogeneous mechanis…
THE NUCLEATION OF MICROCELLULAR THERMOPLASTIC FOAM: PROCESS MODEL AND EXPERIMENTAL RESULTS
Microcellular polymer foams exhibit greatly improved mechanical properties compared to standard foams due to the formers' small bubble size. Typical microcellular foams have bubbles with diameters on the order of 10 microns and volume reductions of 30 to 40%. The presence of these bubbles acts to increase the impact s…
Structure–magnetism correlation in dimeric copper( II ) carboxylates: crystal and molecular structure of tetra-µ-(propanoato-O,O′)-bis[aquacopper( II )]
The dimeric copper(II) carboxylates [{Cu(O2CR)2(H2O)}2] and [{Cu(O2CR)2}2](R = Et or Prn) have been prepared and characterized by means of spectroscopic, magnetic, and thermogravimetric analyses. For [{Cu(O2CEt)2(H2O)}2] the crystal and molecular structure has also been determined. The crystals are monoclinic, space g…
Structural Investigation of Rapidly Quenched Li<sub>2</sub>O-B<sub>2</sub>O<sub>3</sub> Glasses by Raman Spectroscopy
Glasses were prepared over a wide range of composition in the system Li2O-B2O3 using a rapid quenching technique. The glass-forming region was extended up to the composition of 70mol% Li2O. Raman spectra of the glasses were measured; drastic spectral changes were observed in the glasses containing more than 50mol% Li2…