Materials Literature
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Optical-absorption and emission spectra are presented for ${\mathrm{Ho}}^{3+}$ ions in fluorozirconate (ZBLA) glass [the nominal composition of ZBLA glass (in mol%) is 57, ${\mathrm{ZrF}}_{4}$; 34, ${\mathrm{BaF}}_{2}$; 5, ${\mathrm{LaF}}_{3}$; and 4, ${\mathrm{AlF}}_{3}$]. The measured oscillator strengths and radiat…
Abstract Double-cation hydroxy compounds, generally with the pyroaurite-type structure, were synthesized by a reaction involving the hydrolysis of a cation in solution by a fully hydrolysed and precipitated hydroxide of a second metallic cation. Synthesis of this type of compound is not limited to reactions between di…
Bovine pericardial tissue and tissue-derived bioprosthesis fixed in glutaraldehyde and stored in either glutaraldehyde or formaldehyde can induce cytotoxic reactions even after prolonged washing due to the slow leaching of the chemicals used for crosslinking and sterilizing. Sequential rinsing for up to 60 min was sti…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFine-branching structure in high-pressure, low-density polyethylenes by 50.10-MHz carbon-13 NMR analysisTakao Usami and Shigeru TakayamaCite this: Macromolecules 1984, 17, 9, 1756–1761Publication Date (Print):September 1, 1984Publication History Published online1 May 2002Pub…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOn the role of intermolecular hydrogen bonding in miscible polymer blendsE. J. Moskala, S. E. Howe, Paul C. Painter, and Michael M. ColemanCite this: Macromolecules 1984, 17, 9, 1671–1678Publication Date (Print):September 1, 1984Publication History Published online1 May 2002…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMetal ion encapsulation: cobalt cages derived from polyamines, formaldehyde, and nitromethaneR. J. Geue, T. W. Hambley, J. M. Harrowfield, A. M. Sargeson, and M. R. SnowCite this: J. Am. Chem. Soc. 1984, 106, 19, 5478–5488Publication Date (Print):September 1, 1984Publication…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTrap-controlled hopping transportD. M. Pai, J. F. Yanus, and M. StolkaCite this: J. Phys. Chem. 1984, 88, 20, 4714–4717Publication Date (Print):September 1, 1984Publication History Published online1 May 2002Published inissue 1 September 1984https://pubs.acs.org/doi/10.1021/j…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSubstituent effects in the electropolymerization of aromatic heterocyclic compoundsRobert J. Waltman, A. F. Diaz, and Joachim BargonCite this: J. Phys. Chem. 1984, 88, 19, 4343–4346Publication Date (Print):September 1, 1984Publication History Published online1 May 2002Publis…
Changes in bacterial surface hydrophobicity, charge, and degree of irreversible binding to glass surfaces of seven marine isolates were followed during starvation. The degree of hydrophobicity was measured by hydrophobic interaction chromatography and by two-phase separation in a hexadecane-water system, whereas chang…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHydrodynamic thickness of adsorbed polymer layersM. A. Cohen Stuart, F. H. W. H. Waajen, T. Cosgrove, B. Vincent, and T. L. CrowleyCite this: Macromolecules 1984, 17, 9, 1825–1830Publication Date (Print):September 1, 1984Publication History Published online1 May 2002Publishe…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHole transport in solid solutions of a diamine in polycarbonateM. Stolka, J. F. Yanus, and D. M. PaiCite this: J. Phys. Chem. 1984, 88, 20, 4707–4714Publication Date (Print):September 1, 1984Publication History Published online1 May 2002Published inissue 1 September 1984http…
This article comments on the increasing importance of the use of admixtures for concrete, mortars and grouts as well as the specific effects they produce, thus requiring a suitable Spanish Normative, whose performance was taken in charge by a Working Group of the Technical Commission n.° 83 from the IRANOR, created fo…
In previous work on galvanized reinforcements in contact with Ca-containing highly alkaline media, the authors have reported the existence of a threshold pH below with such a medium is passivated, but at pH values above this it corrodes continuously until it totally disappears. In this paper, after a brief literature…
In the present article the needed modifications for the very usual case of having a little quantity of samples are related. There are related in the same way the dimensional modifications of some of the pieces of the HERZOG press which allows with a full security the pressing of dust samples for the use of the automat…
A new measurement system is presented for impermeability of concrete to liquids and gas, of very easy execution. It's technical basis is developed, and some of the results obtained are related with the components used in it's dosification. Therefore, the judgments actually used for the quantification of concrete's uti…
In spite of the largeness of this work we can consider it as a brief resume, since we have employed a little sample among all the wide bibliography existing on calcium silicates. Our aim is to connect the hydraulic properties with the crystallographic ones; to clear up the theories about the stabilization into ambient…
We present the summary of several years of research about the inhibitor effect of NO2- on the corrosion of reinforcements. We have studied their inhibitor effect using galvanostatic and potentiodynamic polarization curves and we have measured the corrosion rates using the Polarization Resistance method (linear polariz…
A hierarchy of classifications for subgroups of space groups by means of Euclidean and affine normalizers is introduced. The different levels of this classification scheme are illustrated in detail with examples and its usefulness for various problems is demonstrated. The Euclidean (or affine) normalizers of a space g…
The streamer and return stroke concepts in positive corona breakdown are reviewed, and examined critically for the case of short (<5 cm) gaps in ambient air. It is shown that return strokes normally should not be observed, but that return streamers may occur in longer or highly overvolted streamer channels. A n…