Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Abstract A description is given of the unit group for the two groups G = D 12 and G = D 8 × C 2 . In particular, it is shown that in both cases the bicyclic units generate a torsion-free normal complement. It follows that the Bass-cyclic units together with the bicyclic units generate a subgroup of finite index in for…
To examine the effects of triploidy on rainbow trout myogenesis in vitro , mononuclear cells were liberated enzymatically from the lateralis muscles of diploid and triploid trout. The muscle of diploids yielded 1 × 10 6 ± 1 × 10 5 (± s.e.m. ) mononuclear cells g −1 muscle compared to 0.7 × 10 6 ± 8 × 10 4 cells g −1 f…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMorphology of n-type macroporous silicon: doping density dependenceE. Galun, C. Reuben, S. Matlis, R. Tenne, and C. Levy-ClementCite this: J. Phys. Chem. 1995, 99, 12, 4132–4140Publication Date (Print):March 1, 1995Publication History Published online1 May 2002Published inis…
Within this work we present Brillouin and ultrasonic investigations performed on the liquid crystals p-methoxybenzylidene p-(n-butylaniline) (MBBA), p-azoxyanisol (PAA), 4-cyano-4-n-alkylbiphenyles (nCB), and 4-n-pentoxybenzylidene-4'-n-octoaniline (5O.8). Special attention has been paid to the evolution of a signific…
Abstract— Corrosion fatigue crack growth rates in high strength steel are often increased when a large cathodic polarization is applied. The corrosion fatigue mechanism in this case is generally considered to be due to hydrogen embrittlement. In the present study the crack growth process was carefully monitored by tak…
The origin of cyclic fatigue in two Ce‐TZP/Al 2 O 3 composites was investigated by (a) measurements of residual stresses in the transformation zones and crack‐tip stress intensities in in situ loaded compact specimens using microprobe Raman spectroscopy, (b) examination of the crack‐tip transformation zones by transmi…
Abstract The processing behavior and morphology are investigated for nonreactive and reactive nylon/ethylene-propylene rubber blends. The nylon (PA) is a partially aromatic amorphous nylon with amine termination. The rubbery phases are an ethylene-propylene rubber (EP) and a similar ethylene-propylene rubber (EP-MA) w…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPolyisoimides: Synthesis and Evaluation as Efficient Precursors for PolyimidesKeisuke Kurita, Yukiko Suzuki, Takahito Enari, Shigeru Ishii, and Shin-Ichiro NishimuraCite this: Macromolecules 1995, 28, 6, 1801–1806Publication Date (Print):March 1, 1995Publication History Publ…
The rare earth gadolinium (Gd) is used in modern industry. Solubilized DTPA Gd and DOTA Gd complexes are used as contrast media in nuclear magnetic resonance imaging. In order to determine the subcellular localization of Gd, rats were injected intraperitoneally with Gd nitrate. Two microanalytic methods, ion microanal…
Six compositions of Cu-Ni-Sn alloys in the α and (α+θ) phase containing 2.7 to 13 wt% Sn and 5 to 22 wt% Ni have been prepared for structure-property correlation by X-ray diffraction, optical and scanning electron microscopy, microhardness and ageing studies. X-ray diffraction line profile analysis characterizes the p…
Abstract The effect of Ethylene Methyl Acrylate (EMA) copolymer as a reactive polymeric compatibilizer in a blend of 50:50 Thermoplastic Polyurethane (TPU)‐Polydimethylsiloxane (PDMS) rubber has been studied. The compatibility was proved by mechanical property measurements and phase morphology studies. EMA reacted wit…
Modeling of kinoforms in optical design software packages can be done in terms of the phase function ϕ(r). The required surface-relief profile t(r) is determined approximately from the relation t(r) = [λ/2π(μ − 1)][ϕ(r)]2π, where λ is the operating wavelength, μ is the refractive index of the optical material of the s…
The hydrogen sites in the disordered metal hydrides, \ensuremath{\beta}-${\mathrm{Ti}}_{1\mathrm{\ensuremath{-}}\mathit{y}}$${\mathrm{V}}_{\mathit{y}}$${\mathrm{H}}_{\mathit{x}}$ (x\ensuremath{\sim}1 and 0.2\ensuremath{\le}y\ensuremath{\le}0.9) were studied using the incoherent inelastic neutron scattering (IINS) tech…
The solid oxide fuel cell shows great potential as an efficient energy conversion system for use in central power stations. These cells can reform most hydrocarbon fuels with air to produce electricity and provide a heat source at 1000°C while maintaining an efficiency of 60–75 percent. This paper describes a steady-s…
Abstract Small‐ and wide‐angle x‐ray scattering is used for structural characterization of amylose solutions and gets. Recently published coordinates determined by x‐ray fiber structure analysis and electron diffraction [A. Imberty and S. Perez: (1988) Biopolymers , Vol. 27. pp. 1205–1212: H. C. Wu and A. Sarko (1978)…
We have investigated multilamellar lipid vesicles (MLV) of defined size (400 nm) containing increasing amounts of cholesterol (CH ) as carriers of azobenzene disperse dyes to wool fibers. The liposomes are made from egg phosphatidylcholine (PC) and contain CI Disperse Orange 1 at different PC : CH relative concentrati…
Magnetic microsphere-methoxtrexate (MM-MTX) conjugates prepared by several different methods were analyzed for their suitability for in vivo use. MM-MTX were prepared by the following methods: (A) reaction of MTX with poly(ethylene glycol) 1500 (PEG) to form a poly(ethylene glycol)-methotrexate conjugate (PEGMTX) whic…
Abstract The mixing of electrically conducting polymers in the undoped state with flexible polymers has been limited due to the stiffness of the delocalized coplanar backbone. The substitution with alkyl side chains has resulted in the distortion of the aromatic rings in the backbone with an increase of the flexibilit…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFormation of 4-Alkoxy-.gamma.-valerolactones from Levulinic Acid and Alcohols during Storage at Room TemperatureChi-Kuen Shu and Brian M. LawrenceCite this: J. Agric. Food Chem. 1995, 43, 3, 782–784Publication Date (Print):March 1, 1995Publication History Published online1 M…
Abstract Dielectric spectroscopy is employed to analyze the molecular dynamics and the charge transport in mixtures of zwitterionic polymers of the type poly{3 [N(ω‐methacryloyloxyalkyl)] N , [ N ‐dimethylammonio propanesulfonate] with sodium iodide in the frequency range of 10 2 Hz–10 7 Hz and in the temperature rang…