Hiroyasu Satoh、Takashi Mino、Tetsuji Matsuo1992-09-01Water Science & Technology
Anaerobic uptake mechanisms of acetate, propionate and lactate by the sludge developed in an anaerobic aerobic biological phosphate removal process was investigated. Anaerobic batch experiments were conducted with these substrates, and mass balances of materials involved in substrate uptake metabolism were calculated.…
Anaerobic Digestion and Biogas ProductionWastewater Treatment and Nitrogen Removalbiodegradable polymer synthesis and properties
Euge`ne Duval1992-09-01Physical review. B, Condensed matter
The selection rules for far-infrared and Raman transitions of a solid sphere are derived from group theory. By far-infrared only the spheroidal dipolar modes are excited, by Raman scattering the spherical and spheroidal quadrupolar modes are observed.
Mechanical and Optical ResonatorsQuantum optics and atomic interactionsSilicon Nanostructures and Photoluminescence
S. Martínez、F. Acción、F. Puertas1992-09-01Materiales de Construccion
Infrared spectra of sodium and potassium alkaline-metal nitrates and magnesium and calcium alkali-earth nitrates in solid phase had been recorded in order to assign the fundamental bands. The influence of the dispersal médium (alkaline halide), employed in the solid sample preparation have been discussed. The quantita…
Julián Salas1992-09-01Materiales de Construccion
This text fits into the context of the attempt to emphasize the considerable importance of the factor of the construction materials in the subsection of low cost housing in Developing Countries in general and in Latín America in particular. The author tries to quantify, in a global manner, the repercussion of the mate…
Ignacio Menéndez Pazos、Francisco Hernández、Fernando Triviño Vázquez1992-09-01Materiales de Construccion
Bases under the law of solubility product, the pores of the cement mortar are refilled by impregnation with two salts that form another insoluble salt. The number of treatments to be underdone and the drying temperatures more suitable in each case. The calcium salts like impregnants and urea sodium oxalate and sugar l…
Juan Carlos López Agüí1992-09-01Materiales de Construccion
E. Gayo、A. Palomo、A. Macías1992-09-01Materiales de Construccion
Non-destructive measurement techniques are revealing themselves as a very important tool in the different fields or research due to their very own nature. The Materials team of ICCET is developing, since some time ago, the application of one of these techniques —specifically speaking, infrarred thermography— to the fo…
Equipo Editorial1992-09-01Materiales de Construccion
Equipo Editorial1992-09-01Materiales de Construccion
Nathalie Ruelle、Mai Pham-Thi Fouassier1992-09-01Japanese Journal of Applied Physics
Red and orange calcium sulfide phosphors (CaS:Eu and CaS:Mn) were prepared by the flux method. Eu 2+ and Mn 2+ show strong concentration quenching at 0.1 and 0.8% respectively. Use of the potassium polysulfide flux leads to efficient phosphors; their efficiency reaches 60 and 100% of Y 2 O 2 S:Eu, respectively. Calciu…
Perovskite Materials and ApplicationsSolid-state spectroscopy and crystallographyLuminescence Properties of Advanced Materials
Raouf El-Mallawany1992-09-01Journal of Applied Physics
The refractive index for a family of optical glasses (tellurite containing halide) has been analyzed. From the dielectric theory, the relationship between the refractive index and number of ions/unit volume (N/V) with polarizability α has been discussed. Halogen substitution resulted in a lower dielectric constant, al…
Phase-change materials and chalcogenidesGlass properties and applicationsPhotorefractive and Nonlinear Optics
Z. Bartczak、A. S. Argon、R. E. Cohen1992-09-01Macromolecules
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDeformation mechanisms and plastic resistance in single-crystal-textured high-density polyethyleneZ. Bartczak, A. S. Argon, and R. E. CohenCite this: Macromolecules 1992, 25, 19, 5036–5053Publication Date (Print):September 1, 1992Publication History Published online1 May 200…
Polymer crystallization and properties
Yingzhu Wei、Samuel M. Hudson、J. M. Mayer 等 4 位作者1992-09-01Journal of Polymer Science Part A Polymer Chemistry
Abstract A need exists for the development of totally biodegradable packaging materials. Chitosan is an under‐utilized polymer which possesses many of the desired characteristics for this application. This article describes the crosslinking of chitosan fibers. Epichlorohydrin (ECH) was selected as a convenient base ca…
Advanced Cellulose Research StudiesMaterial Properties and ProcessingNanocomposite Films for Food Packaging
Masahiro Irie、Koichi Sayo1992-09-01The Journal of Physical Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSolvent effects on the photochromic reactions of diarylethene derivativesMasahiro Irie and Koichi SayoCite this: J. Phys. Chem. 1992, 96, 19, 7671–7674Publication Date (Print):September 1, 1992Publication History Published online1 May 2002Published inissue 1 September 1992ht…
Photochromic and Fluorescence ChemistryPhotochemistry and Electron Transfer StudiesFree Radicals and Antioxidants
Colby A. Foss、Gabor L. Hornyak、Jon A. Stockert 等 4 位作者1992-09-01The Journal of Physical Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOptical properties of composite membranes containing arrays of nanoscopic gold cylindersColby A. Foss Jr., Gabor L. Hornyak, Jon A. Stockert, and Charles R. MartinCite this: J. Phys. Chem. 1992, 96, 19, 7497–7499Publication Date (Print):September 1, 1992Publication History P…
Molecular Junctions and NanostructuresGold and Silver Nanoparticles Synthesis and ApplicationsSurface and Thin Film Phenomena
L. L. Wilson、Richard Brundle、Geoff Wilson1992-09-01Medical Entomology and Zoology
Imaging Techniques, Elemental, Chemical, and Structural Analysis in Electron Beam Column Instruments, Structure Determination by Electron/X-Ray Diffraction/Scattering, Electron Emission Spectroscopies, X-Ray Absorption and Emission Spectroscopies, Visible/UV Emission nad Reflection, Vibrational Spectroscopies and NMR,…
Electron and X-Ray Spectroscopy Techniques
Ivan Gitsov、Karen L. Wooley、Jean M. J. Fréchet1992-09-01Angewandte Chemie International Edition in English
The quantitative end-capping of polyethylene glycols with bromine-substituted, dendritic, aromatic polyethers 1 produces amphiphilic block copolymers. In solvents in which both blocks are only slightly soluble or in which only one block is soluble, micelles form. Depending on the solvent, they can alter their size and…
Advanced Polymer Synthesis and CharacterizationSynthesis and properties of polymersDendrimers and Hyperbranched Polymers
Yasuhiro Mogi、Hiroyuki Kotsuji、Yuji Kaneko 等 6 位作者1992-09-01Macromolecules
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPreparation and morphology of triblock copolymers of the ABC typeYasuhiro Mogi, Hiroyuki Kotsuji, Yuji Kaneko, Katsuaki Mori, Yushu Matsushita, and Ichiro NodaCite this: Macromolecules 1992, 25, 20, 5408–5411Publication Date (Print):September 1, 1992Publication History Publi…
Block Copolymer Self-AssemblyDendrimers and Hyperbranched PolymersAdvanced Polymer Synthesis and Characterization
Takehiko Yagi、Wataru Utsumi、M. Yamakata 等 5 位作者1992-09-01Physical review. B, Condensed matter
High-pressure in situ x-ray diffraction was carried out to clarify the nature of the pressure-induced phase transformation in graphite at room temperature. The combined use of a Drickamer-type high-pressure apparatus with sintered diamond as an anvil material and very intense x rays from synchrotron radiation made it…
High-pressure geophysics and materialsDiamond and Carbon-based Materials ResearchBoron and Carbon Nanomaterials Research
Takahiko Iriyama、Kurima Kobayashi、Nobuyoshi Imaoka 等 6 位作者1992-09-01IEEE Transactions on Magnetics
Effects of nitrogen content on crystal structure and magnetic properties have been investigated in Sm/sub 2/Fe/sub 17/N/sub x/. Sm/sub 2/Fe/sub 17/N/sub x/ specimens with 0>
Magnetic properties of thin filmsMagnetic Properties of AlloysMagnetic and transport properties of perovskites and related materials