Materials Literature
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All articles of this category A five-step general synthesis of 3,4-dialkoxypyrroles 7c-f is described starting with the condensation of dimethyl N -benzyliminodiacetate (1b) and diethyl oxalate to give dimethyl 1-benzyl-3,4-dihydroxypyrrole-2,5-dicarboxylate (2b) , which is bis- O -alkylated to the corresponding 3,4-d…
The microstructures of several commercial refractory bricks have been characterized using scanning and transmission electron microscopy. The “direct bond” is shown to be direct at the level of resolution attainable (∼0.3 nm), and a significant number of such direct contacts occur between non‐silicate phases in the mic…
Abstract Double yields, as well as other complex yielding behavior, that are observed during the tensile deformation of the polyethylenes have been studied in a systematic manner. The conditions under which such yielding is observed were established by studying a set of linear polyethylenes and well‐characterized ethy…
The new application of pulsed electroacoustic (PEA) method to measure space charge profiles in several millimeters thick polymers such as power transmission cable was proposed. In this method, space charge profiles are detected as acoustic wave signals that are generated by the space charge profiles existing in the sa…
In power systems with appreciable resistance, the transformers already connected to the supply system can experience unexpected saturation during the inrush transient of an incoming transformer. This saturation, which is established by the asymmetrical voltage drop across the system resistance caused by the inrush cur…
Sonic cleaning is a commonly used technique for removal of particles from surfaces. The theory of particle removal using ultrasound is reviewed. Effects of cavitation and acoustic streaming are discussed. Experimental results using ultrasonics and megasonics (ultrasonic cleaning near 1 MHz) from the literature are rev…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStudy of Dehydration of Magnesium HydroxideTomoko Yoshida, Tsunehiro Tanaka, Hisao Yoshida, Takuzo Funabiki, Satohiro Yoshida, and Takatoshi MurataCite this: J. Phys. Chem. 1995, 99, 27, 10890–10896Publication Date (Print):July 1, 1995Publication History Published online1 Ma…
Abstract The kinetics of the CO formation by electrochemical reduction of carbon dioxide on a gold electrode investigated in a series of potassium phosphate buffer solutions. CO is the principal product under the above condition. Small amounts of hydrocarbons, such as CH4, C2H4, and C2H6, are detected in the solutions…
By means of symmetry consideration the order parameter ${\mathit{U}}_{\mathit{i}\mathit{j}\mathit{k}}$ of a tetrahedral nematic liquid crystal (LC) was derived. In contrast to other nematic LC's (including uniaxial, biaxial, cubic, and icosahedral phases) the odd rank (=3) of ${\mathit{U}}_{\mathit{i}\mathit{j}\mathit…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT{HB(3,5-Me2pz)3}2Sm(.eta.2-O2): First Example of a Lanthanide Superoxo ComplexXingwang Zhang, Glen R. Loppnow, Robert McDonald, and Josef TakatsCite this: J. Am. Chem. Soc. 1995, 117, 29, 7828–7829Publication Date (Print):July 1, 1995Publication History Published online1 May…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTKinetics of Complex Formation by Macrocyclic Polyaza Polycarboxylate Ligands: Detection and Characterization of an Intermediate in the Eu3+-dota System by Laser-Excited LuminescenceShu Ling Wu and William DeW. Horrocks Jr.Cite this: Inorg. Chem. 1995, 34, 14, 3724–3732Public…
The crystal structure of the complex between the cross-reacting antigen Guinea fowl lysozyme and the Fab from monoclonal antibody F9.13.7, raised against hen egg lysozyme, has been determined by x-ray diffraction to 3-A resolution. The antibody interacts with exposed residues of an alpha-helix and surrounding loops ad…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNovel Ferroelectric and Electroclinic Organosiloxane Liquid CrystalsJ. Naciri, J. Ruth, G. Crawford, R. Shashidhar, and B. R. RatnaCite this: Chem. Mater. 1995, 7, 7, 1397–1402Publication Date (Print):July 1, 1995Publication History Published online1 May 2002Published inissu…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNew Method for the Determination of the Trialkylaluminum Content in AlumoxanesAndrew R. BarronCite this: Organometallics 1995, 14, 7, 3581–3583Publication Date (Print):July 1, 1995Publication History Published online1 May 2002Published inissue 1 July 1995https://pubs.acs.org…
The lumazine synthase/riboflavin synthase complex of Bacillus subtilis consists of an icosahedral capsid of 60 beta subunits surrounding a core of three alpha subunits. The beta subunits catalyze the condensation of 5-amino-6-ribityl-amino-2,4(1H,3H)-pyrimidinedione (PYR) with 3,4-dihydroxy-2-butanone 4-phosphate (DHB…
Salivary secretions modulate taste perception. Taste buds in the circumvallate and foliate papillae are bathed in secretions of unique lingual salivary glands, von Ebner's glands (VEG). We have identified a rat cDNA encoding a novel protein of 1290 amino acids, Ebnerin, that is specifically expressed in VEG and releas…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTIR and MAS NMR Studies on the Incorporation of Aluminum Atoms into Defect Sites of Dealuminated MordenitesPeng Wu, Takayuki Komatsu, and Tatsuaki YashimaCite this: J. Phys. Chem. 1995, 99, 27, 10923–10931Publication Date (Print):July 1, 1995Publication History Published onli…
Abstract Conventional vulcanization, has a history of over 150 years, during which there have been increasing needs for technology to permit more and more rapid processing before the vulcanization of a rubber article in its final shape. But, at the same time, one desired increased rates of crosslinking after the part…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT19F NMR Spectra and Structures of Halogenated PorphyrinsEva R. Birnbaum, Julia A. Hodge, Mark W. Grinstaff, William P. Schaefer, Lawrence Henling, Jay A. Labinger, John E. Bercaw, and Harry B. GrayCite this: Inorg. Chem. 1995, 34, 14, 3625–3632Publication Date (Print):July 1…
Stress grading on high voltage motor and generator stator windings is becoming more important as the electrical stress in the ground insulation is increased. While there are a variety of possible ways to relieve surface stress, non-linear resistive tapes have been almost universally adopted because of their simplicity…