Starting material oriented retrosynthetic analysis in the LHASA program. 1. General description
This paper introduces and gives an overview of the starting material oriented analysis package in lhasa.
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Preparation of PbTiO 3 Thin Films by an Excimer Laser Ablation Technique with Second Laser Irradiation
Ferroelectric PbTiO 3 thin films have been formed on based electrodes of Pt or oxide superconductor ((La, Sr) 2 CuO 4 ) by an ArF excimer laser ablation technique. A second laser irradiation at the substrate surface is quite effective in the crystallization of the films at low substrate temperature below 400°C. The su…
The Thermal Conversion of Poly[(silylene)‐diacetylene] Metal Oxide Composites: A New Approach to β‐SiCMC Ceramics
Cross‐linking of 1, formation of a SiC network, and reduction of the encapsulated TiO 2 particles are the three steps in the reaction of poly[(dimethylsilylene)diacetylene] ( 1 ) and TiO 2 which produces SiCTiC ceramics [Eq. (a)]. The reduction of the metal oxide in this case is possible at much lower temperatures th…
Initial Development of Microdamage Under Impact Loading
In this paper, the initial development of microdamage in material subjected to impulsive loading was investigated experimentally and analytically with controllable short-load duration. Based on a general solution to the statistical evolution of a one-dimensional system of ideal microcracks, a prerequisite to experimen…
Effects of sulfate reduction on CaCO 3 dissolution and precipitation in mixing-zone fluids
Abstract Sulfate reduction in the sea-water end member of mixing-zone fluids changes the fluid-saturation indices for carbonate minerals. Mixing-zone fluids were modeled quantitatively using Atlantic sea water and a fresh-water end member from Barbados for sulfate reduction in the presence of goethite, in the absence…
[CF3Au(C.tplbond.NMe)] as a precursor for CVD of gold
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT[CF3Au(C.tplbond.NMe)] as a precursor for CVD of goldNeil H. Dryden, Joseph G. Shapter, Leighton L. Coatsworth, Peter R. Norton, and Richard J. PuddephattCite this: Chem. Mater. 1992, 4, 5, 979–981Publication Date (Print):September 1, 1992Publication History Published online…
Cyclopolymerization of divinyl ethers. Synthesis and the cation-binding property of poly(crown ethers)
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCyclopolymerization of divinyl ethers. Synthesis and the cation-binding property of poly(crown ethers)Toyoji Kakuchi, Osamu Haba, and Kazuaki YokotaCite this: Macromolecules 1992, 25, 19, 4854–4858Publication Date (Print):September 1, 1992Publication History Published online…
Dynamic mechanical and gas transport properties of blends and random copolymers of bisphenol‐A polycarbonate and tetramethyl bisphenol‐A polycarbonate
Abstract Dynamic mechanical and gas transport properties for homogeneous homopolymer blends and random copolymers of bisphenol‐A and tetramethyl bisphenol‐A polycarbonates (PC‐TMPC) were determined. The gas transport measurements were performed at 35°C for the gases He, H 2 , O 2 , Ar, N 2 , CH 4 , and CO 2 . The resu…
Geometrical and electronic structures of a benzimidazobenzophenanthroline-type ladder polymer (BBL)
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTGeometrical and electronic structures of a benzimidazobenzophenanthroline-type ladder polymer (BBL)Sung Y. Hong, Miklos Kertesz, Yong S. Lee, and Oh Kil KimCite this: Macromolecules 1992, 25, 20, 5424–5429Publication Date (Print):September 1, 1992Publication History Publishe…
Synthesis of poly(2,5-dialkoxyphenylene)
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis of poly(2,5-dialkoxyphenylene)Mitsuru Ueda, Tetsuya Abe, and Hiroshi AwanoCite this: Macromolecules 1992, 25, 20, 5125–5130Publication Date (Print):September 1, 1992Publication History Published online1 May 2002Published inissue 1 September 1992https://pubs.acs.org…
Joining SiAlON Ceramics Using Composite β‐SiAlON–Glass Adhesives
Commercial β‐SiAlON ceramics were joined using mixed Si 3 N 4 , Y 2 O 3 , Al 2 O 3 , and SiO 2 powders. At a joining temperature of 1600°C and a hold time in excess of 10 min, the adhesive was converted to an approximate 60:40 vol% composite of β‐SiAlON–glass‐ceramic. The grain size of the acicular β‐SiAlON grains pre…
A study of the undercutting characteristics in the TMAH-IPA system
A new etching system of tetramethyl ammonium hydroxide-2-propanol (TMAH-IPA) is suggested. The undercutting ratio for TMAH at 80 degrees C is about 7, much higher than for KOH etchants. The addition of IPA in the TMAH system maintains the main features of TMAH and reduces the undercutting ratio by a factor of 2-3.
Interaction of Ag/Pd Metallization with Lead and Bismuth Oxide‐Based Fluxes in Multilayer Ceramic Capacitors
An ongoing challenge for future developments in high‐performance ceramic multilayer capacitors and integrated ceramics is to reduce the internal electrode cost and thickness without sacrificing yield or reliability. Key to these developments is a thorough understanding of the interactions which occur between flux‐sint…
Birefringence Patterns of Nematic Droplets
Birefringence patterns of nematic liquid crystalline droplets are investigated both theoretically and experimentally. Gridding method is developed to calculate optical birefringence patterns of nematic droplets with different director configurations. Series of birefringence patterns of the four typical nematic droplet…
Texture, Mineralogy, and Lamellae Development in Sandy Soils in Michigan
Abstract The texture, mineralogy, and to a lesser extent topography, of some sandy soils in Michigan were examined to determine the possible genesis of lamellae in these soils. Differences in lamellae presence and depth were studied in four Haplorthods, one Argic Udipsamments, and one Psammentic Eutroboralf on a subtl…
Structural effects induced by mutagenesis affected by crystal packing factors: The structure of a 30–51 disulfide mutant of basic pancreatic trypsin inhibitor
The X-ray structure of the C30V/C51A disulfide mutant of basic pancreatic trypsin inhibitor (BPTI) has been analyzed at 1.6 A resolution. The mutant crystallizes in a cell having two molecules in the asymmetric unit. The packing environments of these two molecules are quite different, allowing for an assessment of whi…
The demixing and gas–liquid instability of a binary Yukawa fluid
For a binary mixture we relate the second order expansion of the grand canonical potential Ω to direct correlation functions and to thermodynamic expressions. The matrix of second functional derivatives of Ω with respect to the particle density fluctuations is diagonalized. The zero of the smallest eigenvalue indicate…
NAD+-Linked Isocitrate Dehydrogenase: Isolation, Purification, and Characterization of the Protein from Pea Mitochondria
The NAD(+)-dependent isocitrate dehydrogenase from etiolated pea (Pisum sativum L.) mitochondria was purified more than 200-fold by dye-ligand binding on Matrix Gel Blue A and gel filtration on Superose 6. The enzyme was stabilized during purification by the inclusion of 20% glycerol. In crude matrix extracts, the enz…
New triborate-pillared hydrotalcites
ADVERTISEMENT RETURN TO ISSUEPREVArticleNew triborate-pillared hydrotalcitesAlak Bhattacharyya and Daniel B. HallCite this: Inorg. Chem. 1992, 31, 18, 3869–3870Publication Date (Print):September 1, 1992Publication History Published online1 May 2002Published inissue 1 September 1992https://pubs.acs.org/doi/10.1021/ic00…
Reaction Mechanism of Chemical Vapor Deposition Using Tetraethylorthosilicate and Ozone at Atmospheric Pressure
The decomposition process of tetraethylorthosilicate (TEOS) and ozone at atmospheric pressure was measured in a closed vessel by in-situ Fourier-transform infrared absorption (FT-IR) analysis, and the changes of the deposition rate and the overall sticking probability β of the film precursor were obtained along the fl…