Naoyuki Nishiyama、Seiichi Kawahara、Takashi Kakubo 等 5 位作者1996-09-01Rubber Chemistry and Technology
Abstract Crystallization behavior of deproteinized natural rubber at −25°C was investigated by dilatometry in connection with the effect of long-chain fatty acid groups, esterified to the rubber chain, as well as free fatty acids and their esters. The overall crystallization rate decreased after removal of the acetone…
Polymer crystallization and propertiesPolymer Nanocomposites and Propertiesbiodegradable polymer synthesis and properties
Mitsuo Tsukada、M. Mukaida、Shintaro Miyazawa1996-09-01Japanese Journal of Applied Physics
Close correlation between the dielectric constant and the degree of preferential (111) orientation is found for Ba(Ti 0.85 Sn 0.15 )O 3 ( BTS 15 ) solid-solution thin films deposited on a Pt/Ti/SiO 2 /Si(100) substrate by pulsed laser deposition. It is shown that substrate temperature is the principal factor which det…
Ferroelectric and Piezoelectric MaterialsMicrowave Dielectric Ceramics SynthesisElectronic and Structural Properties of Oxides
Julius Meyer、Derck Schlettwein1996-09-01Advanced Materials for Optics and Electronics
By changing the chemical composition of phthalocyanine molecules, the electrical properties of the ensemble in the solid state can be influenced directly. This is shown for phthalocyaninatomanganese (PcMn) as compared with purely divalent central metals and for complexes in which the ligand system has been modified by…
Porphyrin and Phthalocyanine ChemistryTransition Metal Oxide NanomaterialsElectrochemical Analysis and Applications
M. ARIAS、María Teresa Barral、F. DIAZ‐FIERROS1996-09-01European Journal of Soil Science
Summary The aggregative effect of organic matter on soil particles is conditioned by its composition and concentration and the degree to which it is associated with metal ions and oxides in the soil. We treated suspensions of kaolin or quartz substrates at pH 5 with metal (Fe or Al; c. 3 to 23 mg g −1 of substrate) or…
Soil and Unsaturated FlowClay minerals and soil interactionsMine drainage and remediation techniques
V. Savithri、S.M. Mayanna1996-09-01ePrints@Bangalore University (Bangalore University)
The inhibitive action of tetrabutyl ammonium iodide, cetyl pyridinium bromide and cetyl trimethyl ammonium bromide towards the corrosion of mild steel in sulphuric acid has been investigated by weight loss and polarisation techniques. The percentage inhibition varies with the nature and concentration of the inhibitor,…
Corrosion Behavior and InhibitionInorganic and Organometallic ChemistrySynthesis and properties of polymers
B. W. Swift、Mónica Olvera de la Cruz1996-09-01Europhysics Letters (EPL)
We study concentrated solutions of ideal A-B symmetric random copolymers in non-selective good solvents by computer simulations. When the effective net A-B interaction per thermal energy in the solution (χ eff ) is larger than 2, the scattering function has a peak at a molecular weight ( N ) independent wave vector k…
Advanced Polymer Synthesis and CharacterizationMaterial Dynamics and PropertiesBlock Copolymer Self-Assembly
Stanisław Bartkiewicz、Andrzej Miniewicz1996-09-01Advanced Materials for Optics and Electronics
A new principal mechanism underlying real-time holographic grating recording in a thin cell filled with a nematic liquid crystal doped with a dye is proposed. In the experiment a laser light interference pattern is mapped in the form of a spatial modulation of index of refraction. This is achieved by respective modula…
Photonic and Optical DevicesLiquid Crystal Research AdvancementsPhotorefractive and Nonlinear Optics
Tadashi Takenaka、Kyo Komura Kyo Komura、Kōichirō Sakata1996-09-01Japanese Journal of Applied Physics
Possibilities of new ferroelectrics, Bi 5 Nb 3 O 15 (BIN) and Bi 5 Ta 3 O 15 (BTA), where A=Bi 5+ , B=Nb 5+ and Ta 5+ and k =1, in the general formula of mixed bismuth layer-structured oxides (MBLSO), Bi 4 A 2 k -1 B 2 k +1 O 6 k +9 ( k =1, 2, 3, 4), are discussed using ordinary fired, hot-pressed and hot-forged ceram…
Ferroelectric and Piezoelectric MaterialsGlass properties and applicationsAcoustic Wave Resonator Technologies
Daniel A. Medalie、Ronald G. Tompkins、Jeffrey R. Morgan1996-09-01ASAIO Journal
This study evaluated the structure and function of a dermal substitute composed of de-epidermalized, acellular human dermis, and tested its performance as part of a composite skin graft with cultured human keratinocytes. The acellular dermis retained much of the complex structure of native dermis, as demonstrated by i…
Electrospun Nanofibers in Biomedical ApplicationsWound Healing and TreatmentsSilk-based biomaterials and applications
John M. Krochta、Cathérine L. C. De Mulder-Johnston1996-09-01ACS symposium series
Biological recycling of biodegradable polymers is an important option for reducing municipal solid waste. Legislation, including prohibitions on disposal of non-biodegradable waste at sea, is making development of biodegradable products more urgent. Biodegradable polymers based on cellulose, starch, protein, microbial…
Nanocomposite Films for Food Packagingbiodegradable polymer synthesis and propertiesMicroplastics and Plastic Pollution
Mark J. Rosker、Patricia Cunningham、M. D. Ewbank 等 8 位作者1996-09-01Pure and Applied Optics Journal of the European Optical Society Part A
A salt-based approach for the development of frequency conversion materials is presented. Salts are generally rugged materials due to their strong ionic bonding. A high degree of chemical substitution (both of anion and cation) is possible, including highly nonlinear organic ions. This flexibility is consistent with t…
Crystal Structures and PropertiesNonlinear Optical Materials ResearchPhotorefractive and Nonlinear Optics
N Pittet、Philippe Boltenhagen、N. Rivier 等 4 位作者1996-09-01Europhysics Letters (EPL)
A soap froth with bubbles of equal size in a cylindrical tube tends to crystallise. We exhibit, experimentally and by simulation, two sequences of transitions between different crystalline structures. Each transition is induced by a single dislocation. The two different sequences of transitions are associated with dif…
Material Dynamics and PropertiesSurfactants and Colloidal SystemsPickering emulsions and particle stabilization
Toru Nagai Toru Nagai、Masaaki Sugiyama、Mutsuo Sando 等 4 位作者1996-09-01Japanese Journal of Applied Physics
A characteristic change in the dielectric properties with A-site substitution is known in complex perovskite compounds, (Ba, Sr)(B', B")O 3 , which are expected to be applied to dielectric resonators. Recently, a phase transformation upon tilting of oxygen octahedra has been found in some of the compounds. However the…
Ferroelectric and Piezoelectric MaterialsMultiferroics and related materialsMicrowave Dielectric Ceramics Synthesis
Hiroshi Yao、Shigeru Takahara、Hirokazu Mizuma 等 5 位作者1996-09-01Japanese Journal of Applied Physics
CdS and CdSe nanoparticles were prepared in organic solvents in the presence of poly(N-vinyl-2-pyrrolidone) (PVP). PVP plays an essential role in preventing the flocculation of concentrated nanoparticles (stabilizing effect), and in controlling the particle size under the influence of the solvent used. FT-IR measureme…
Quantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin FilmsNonlinear Optical Materials Studies
Shivesh Yadav、Kartic C. Khilar、Akkihebbal K. Suresh1996-09-01AIChE Journal
Abstract Interfacial polycondensation is an important polymerization technique that encapsulates a variety of active principles. Mechanisms governing the reaction and interplay of physical and chemical rate processes need to be understood for both rational design of reaction equipment and the process control to produc…
Polymer crystallization and propertiesPolymer composites and self-healingRheology and Fluid Dynamics Studies
G. Rosenman、A. Skliar、I. Lareah 等 6 位作者1996-09-01Physical review. B, Condensed matter
Ferroelectric domain structures of as-grown KTiOP${\mathrm{O}}_{4}$ crystals are observed on polished polar surfaces by the scanning secondary-electron microscopy (SEM) method. The results demonstrate a different contrast origin for domain boundaries and domains themselves. It is shown that the electron-beam irradiati…
Ferroelectric and Piezoelectric MaterialsPhotorefractive and Nonlinear OpticsAcoustic Wave Resonator Technologies
T. H. P. Chang、M. G. R. Thomson、Mingzhu Yu 等 8 位作者1996-09-01Microelectronic Engineering
As a continued effort to improve the performance of low energy scanning electron probe systems for application in microscopy, lithography, metrology, etc., miniaturized electron beam columns, approximately 3 mm in length, demonstrating a probe size of 10 nm with a beam current of ≥1 nA at 1 keV, have been successfully…
Advancements in Photolithography TechniquesElectron and X-Ray Spectroscopy TechniquesIntegrated Circuits and Semiconductor Failure Analysis
S. Chandrasekhar、Geetha G. Nair、Klaüs Praefcke 等 4 位作者1996-09-01Molecular crystals and liquid crystals science technology. Section A, Molecular crystals and liquid crystals/Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals
The optical textures exhibited by the mesophases of three compounds, all of which are reported to show the biaxial nematic phase, have been examined. The textures are of the usual nematic schlieren type, except that they consist entirely of disclinations of strength |s| = 1/2. It is suggested that the absence of discl…
Liquid Crystal Research AdvancementsSurfactants and Colloidal SystemsMolecular spectroscopy and chirality
Neil R. Wyborn、James Mills、Steven G. Williams 等 4 位作者1996-09-01European Journal of Biochemistry
A 3.2-kbp PstI fragment of DNA encoding formamidase from the methylotrophic bacterium Methylophilus methylotrophus which had previously been cloned (pNW3) [Wyborn, N.R., Scherr, D.J. & Jones, C.W. (1994) Microbiology 140, 191-195], was subcloned as a 2.3 kbp HindIII fragment (pNW323). Nucleotide sequencing showed that…
Enzyme Structure and FunctionEnzyme Production and CharacterizationBiochemical and Molecular Research
Jean‐Luc Pozzo、André Samat、Robert Guglielmetti 等 5 位作者1996-09-01Canadian Journal of Chemistry
New photochromic chromenes annulated with a furan ring have been synthesized. Thus, suitable heterocyclic phenols react with different propargylic alcohols in acidic medium to give the corresponding ethers, which cyclize into benzopyrans by thermal Claisen rearrangement. This synthetic approach was found to lead to a…
Photochromic and Fluorescence ChemistrySynthesis of Indole DerivativesSynthesis of Organic Compounds