Materials Literature
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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…
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,…
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…
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…
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…
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>
For pt.XIII see ibid., vol.8, no.4 (July/August 1992). The finer points of acoustic partial discharge (PD) detection systems and their common applications are treated. The PD source, propagation path of the waves, the acoustic sensor, and system noise are described. The design of acoustic PD instrumentation, the locat…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElastic modulus and equilibrium swelling of poly(dimethylsiloxane) networksSuman K. Patel, Shawn Malone, Claude Cohen, Jeffrey R. Gillmor, and Ralph H. ColbyCite this: Macromolecules 1992, 25, 20, 5241–5251Publication Date (Print):September 1, 1992Publication History Publish…
Blockade of phagocytosis and selective elimination of macrophages (m phi s) are generally accepted procedures for gaining knowledge about the function of m phi s in vivo. This study demonstrates that intravenous injection of gadolinium chloride (GdCl3) not only blocks phagocytosis by rat liver m phi s (Kupffer cells)…
Following a brief review of prior work on fabric-based armor systems, the system effects that occur during the ballistic impact of woven fabric body armor materials are discussed from a conceptual framework developed to relate single yarn impact mechanics to fabric impact mechanics. The consequence of assembling yarns…
Circumferential magnetic properties of amorphous magnetic wires (a-wires, for short) with three kinds of compositions (FeSiB, CoSiB, and FeCoSiB) and diameters of 120 mu m and 50 mu m are investigated applying an AC current using a BH hysteresis tracer. The magnitude of the induced voltage between both ends of the a-w…
Heavy‐metal oxide glasses might arbitrarily be defined as those containing over 50 cation percent of bismuth and lead which participate in the glass structure as network formers. Glass systems based on these heavy‐metal oxides in silicates, borates, phosphates, germanates, and ferrites are surveyed. Gallate systems ar…
Anisotropic magnetic susceptibilities of single crystals of the layered transition-metal thiophosphates ${\mathrm{MnPS}}_{3}$, ${\mathrm{FePS}}_{3}$, and ${\mathrm{NiPS}}_{3}$ have been measured as a function of temperature. The materials order antiferromagnetically at low temperatures, the N\'eel temperatures being 7…
Spider dragline silk is a unique protein fiber possessing both high tensile strength and high elasticity. A partial cDNA clone for one dragline silk protein (Spidroin 1) was previously isolated. However, the predicted amino acid sequence could not account for the amino acid composition of dragline silk. We have isolat…
ADVERTISEMENT RETURN TO ISSUEArticleNEXTConjugates of anticancer agents and polymers: advantages of macromolecular therapeutics in vivoHiroshi Maeda, Len W. Seymour, and Yoichi MiyamotoCite this: Bioconjugate Chem. 1992, 3, 5, 351–362Publication Date (Print):September 1, 1992Publication History Published online1 May 2…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMetalloporphyrins as versatile catalysts for oxidation reactions and oxidative DNA cleavageBernard MeunierCite this: Chem. Rev. 1992, 92, 6, 1411–1456Publication Date (Print):September 1, 1992Publication History Published online1 May 2002Published inissue 1 September 1992htt…
Measurements of the thermal conductivity above 30 K of mixed crystals with controlled disorder, (KBr${)}_{1\mathrm{\ensuremath{-}}\mathit{x}}$(KCN${)}_{\mathit{x}}$, (NaCl${)}_{1\mathrm{\ensuremath{-}}\mathit{x}}$, (NaCn${)}_{\mathit{x}}$ ${\mathrm{Zr}}_{1\mathrm{\ensuremath{-}}\mathit{x}}$${\mathrm{Y}}_{\mathit{x}}$$…
Large crystals of silver selenogallate were grown. Generation of the second harmonic of CO 2 laser radiation in these crystals was studied. An energy conversion efficiency of 19.8% was achieved. Calculations were made of the angular tuning characteristics of optical parametric oscillators using type I and II processes…
Atomistic simulations of hole self-trapping in a pure corundum crystal have been undertaken using three different approaches. The inward Jahn-Teller displacement of two O atoms (on which 80% of the hole density is concentrated), accompanied by the outward displacement of the two nearest Al atoms, gives the energetical…
We have used low-temperature silicon molecular beam epitaxy to grow a δ-doped silicon layer on a fully processed charge-coupled device (CCD). The measured quantum efficiency of the δ-doped backside-thinned EG&G Reticon CCD is in agreement with the reflection limit for light incident on the back surface in the spec…