Statistical Methods in Accelerated Life Testing
(1991). Statistical Methods in Accelerated Life Testing. Technometrics: Vol. 33, No. 3, pp. 360-362.
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Numerical Modeling and Solution of Galvanic Corrosion Systems: Part I. Governing Differential Equation and Electrodic Boundary Conditions
This is the first in a pair of papers describing the development of the computational corrosion analysis accomplished at the Naval Underwater Systems Center and the University of Connecticut over the past decade. This paper outlines the mathematical representation of the corrosion problem to be solved in terms of the…
Interpretation of DTA Experiments Used for Crystal Nucleation Rate Determinations
An analysis is presented of two schemes which have been proposed for the determination of the temperature dependence of homogeneous crystal nucleation rates in glasses via DTA measurements. The first method is based upon the postulate that the inverse of the temperature at which the DTA crystallization rate is maximum…
Characterization of epitaxially grown films of vanadium oxides
The growth of VO2 and V2O3 thin films by reactive sputtering has been investigated. Previously reported studies of such thin films have often presented ambiguous results concerning the precise nature of the layers produced. A thorough and comprehensive characterization program including x-ray diffraction, scanning ele…
Modification of silicone surface by graft polymerization of acrylamide with corona discharge
Abstract In order to render the surface of silicone hydrophilic without changing its bulk properties, acrylamide was grafted onto its surface. A silicone sheet was first treated with a corona discharge in air to introduce peroxides onto the surface. The concentration of peroxide introduced to the surface was determine…
Synthesis and dopaminergic activity of 3-substituted 1-(aminomethyl)-3,4-dihydro-5,6-dihydroxy-1H-2-benzopyrans: characterization of an auxiliary binding region in the D1 receptor
The synthesis and dopaminergic activity of a series of C3 and nitrogen-substituted 1-(aminomethyl)-3,4-dihydro-5,6-dihydroxy-1H-2-benzopyrans (isochromans) is described. The synthesis of the compounds was stereospecific for the 1,3 cis isomer, and the enantioselective synthesis of both enantiomers of one of the analog…
Resonance Raman characterization of ferric and ferryl porphyrin .pi. cation radicals and the FeIV:0 stretching frequency
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTResonance Raman characterization of ferric and ferryl porphyrin .pi. cation radicals and the FeIV:0 stretching frequencyShinji Hashimoto, Yasuhisa Mizutani, Yoshitaka Tatsuno, and Teizo KitagawaCite this: J. Am. Chem. Soc. 1991, 113, 17, 6542–6549Publication Date (Print):Aug…
Preparation of meadowfoam dimer acids and dimer esters, and their use as lubricants
Abstract Meadowfoam dimer acids have been prepared in a thermal clay‐catalyzed reaction. Reaction conditions have been optimized, and yields of 44% were obtained with 2% water and 6–8% of an acid‐washed montmorillonite clay, based on the meadowfoam fatty acids. Purity of the distilled dimer acids was 79–89% with most…
Molecular Composites and Self-Reinforced Liquid Crystalline Polymer Blends
Advances in machine learning have impacted myriad areas of materials science, such as the discovery of novel materials and the improvement of molecular simulations, with likely many more important developments to come. Given the rapid changes in this ...Read More
Phase Stability, Phase Transformation Kinetics, and Conductivity of Y 2 O 3 —Bi 2 O 3 Solid Electrolytes Containing Aliovalent Dopants
Single‐phase, cubic solid solutions of baseline composition 25% Y 2 O 3 —75% Bi 2 O 3 with and without aliovalent dopants were fabricated by pressureless sintering of powder compacts. CaO, SrO, ZrO 2 , or ThO 2 was added as an aliovalent dopant. Sintered samples were annealed between 600° and 650°C for up to 4000 h. S…
Low‐Temperature Aging of t ′‐Zirconia: The Role of Microstructure on Phase Stability
Polycrystalline, tetragonal ( t ′) zirconia samples containing 3 and 4 mol% yttria were fabricated by annealing pressureless‐sintered samples in air at ∼ 2100°C for 15 min. The grain size of these fully tetragonal samples was on the order of 100 to 200 μm. Domain structure of the samples and of a 3‐mol%‐yttria‐doped t…
The influence of solvent polarity of the nonradiative decay of exciplexes
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe influence of solvent polarity of the nonradiative decay of exciplexesP. Van Haver, N. Helsen, S. Depaemelaere, M. Van der Auweraer, and F. C. De SchryverCite this: J. Am. Chem. Soc. 1991, 113, 18, 6849–6857Publication Date (Print):August 1, 1991Publication History Publis…
Mononuclear and dinuclear ruthenium complexes with triazole containing ligands; fine-tuning of the spectroscopic properties
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMononuclear and dinuclear ruthenium complexes with triazole containing ligands; fine-tuning of the spectroscopic propertiesRonald Hage, Jaap G. Haasnoot, Jan Reedijk, Renyi Wang, and Johannes G. VosCite this: Inorg. Chem. 1991, 30, 17, 3263–3269Publication Date (Print):Augus…
Spectroscopic characterization of the europium(III) complexes of a series of N,N'-bis(carboxymethyl) macrocyclic ether bis(lactones)
The Eu3+ and Y3+ complexes of a series of N,N'-bis(carboxymethyl) macrocyclic ether bis(lactone) ligands derived from ethylenediaminetetraacetic acid (EDTA) were characterized in solution by using Eu3+ laser-induced luminescence and 1H and 13CNMR spectroscopy. The complexation of EDTA was also studied for comparison p…
Lattice vibrations of the icosahedral solid α-boron
Crystalline \ensuremath{\alpha}-boron consists of ${\mathrm{B}}_{12}$ icosahedra in a rhombohedral lattice of R3\ifmmode\bar\else\textasciimacron\fi{}m space-group symmetry. We here carry out a classical force-field analysis of the lattice vibrations. The q=0 Brillouin-zone vibrations are treated as those of a ${\math…
A molecular clip with allosteric binding properties
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA molecular clip with allosteric binding propertiesRint P. Sijbesma and Roeland J. M. NolteCite this: J. Am. Chem. Soc. 1991, 113, 17, 6695–6696Publication Date (Print):August 1, 1991Publication History Published online1 May 2002Published inissue 1 August 1991https://pubs.ac…
Phases and Third-Order Optical Nonlinearities in Tetravalent Metallophthalocyanine Thin Films
The third-order optical susceptibilities χ 1111 (3) (-3ω; ω, ω, ω) s f o r t w o d i f f e r e n t p h a s e s i n v a n a d y l a n d t i t a n y l p h t h a l o c y a n i n e ( V O P c a n d T i O P c ) v a c u u m - d e p o s i t e d t h i n f i l m s a r e d e t e r m i n e d b y o p t i c a l t h i r d - h a r m…
EPR and NMR study of the spin-crossover transition in bis(4,4'-bi-1,2,4-triazole)bis(thiocyanato)iron hydrate and bis(4,4'-bi-1,2,4-triazole)bis(selenocyanato)iron hydrate. X-ray structure determination of Fe(4,4'-bi-1,2,4-triazole)2(SeCN)2.cntdot.H2O
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEPR and NMR study of the spin-crossover transition in bis(4,4'-bi-1,2,4-triazole)bis(thiocyanato)iron hydrate and bis(4,4'-bi-1,2,4-triazole)bis(selenocyanato)iron hydrate. X-ray structure determination of Fe(4,4'-bi-1,2,4-triazole)2(SeCN)2.cntdot.H2OAndrzej Ozarowski, Yu Sh…
Structure and magnetic properties of a chain compound formed by copper(II) and a tridentate nitronyl nitroxide radical
A novel compound formed by copper(II) and a nitronyl nitroxide radical of formula [Cu(hfac)2]3(NITpPy)2 (where hfac = hexafluoroacetylacetonato and NITpPy = 2-(4-pyridyl)-4,4,5,5-tetramethylimidazoline-1-oxyl 3-oxide) was synthesized. It crystallizes in the monoclinic system, space group C2/c, with a 36.540 (9) angstr…
Electrical conductivity in heterogeneous polymer systems. V (1): Further experimental evidence for a phase transition at the critical volume concentration
Abstract A new dispersion/flocculation phase transition model for the conductivity jump at the critical volume concentration of a conductive phase in an insulating matrix polymer is discussed. New experimental‐data including: SEM evaluations of the “seam” structure, excess pyrolytic residue analysis, BET measurements…