Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
This study reports our first-year experience in the immunocytochemical staining of specimens prepared by the ThinPrep processor. The avidin-biotin-complex technique was applied to smears of 70 cytological specimens, including fine-needle aspiration samples from various sites (56 specimens), body fluids (13 specimens)…
Composite electrodes for solid oxide fuel cells were modeled by three‐dimensional resistor networks. The networks were generated on a computer by identifying neighbors in either cubic lattices randomly occupied by electrolyte or electrode particles, or in random packings generated by sequential deposition of such part…
Abstract The cure kinetics of an unsaturated polyester resin were studied by differential scanning calorimetry (DSC), and different dynamic and isothermal procedures were compared. It was established that the isothermal kinetic analysis through the isoconversional adjustment ln t = A + E/RT is the method that offers t…
The shrinkage rates of small prismatic dislocation loops introduced by high-temperature plastic deformation in 9·4 and 18 mol% Y2O3-stabilized cubic ZrO2 single crystals have been determined via sequential observation of thin transmission electron microscopy foils annealed ex situ between 1100 and 1300°C. The shrinkag…
One‐step post‐polymerization‐functionalization of polythiophene is reported. Using the new method presented here a large variety of amines carrying, for example, sterically demanding or electronically sensitive functional groups can be attached to conducting‐polymer‐modified electrodes even under aqueous conditions. T…
The cylindrical pore structure and barrier layer of anodic films formed on magnesium which are similar to the Keller's model of anodic alumina are determined by direct cross‐sectional observation. The ratios of cell diameter and barrier layer thickness to the forming voltage are notably smaller than those associated w…
A study is made of a glass/glass‐ceramic bilayer as a model homogeneous/heterogeneous laminate. The underlying objective is microstructural design of ceramic layer systems with optimum mechanical properties, alternating hard layers, for wear resistance, with tough layers, for fracture resistance. Mica flakes in the gl…
Development of a coating material for shell eggs is important because of economic loss from shell damage and decline in interior egg quality. Studies were done to evaluate the interior quality (moisture loss, Haugh unit, and pH) and shell properties (strength, thickness, morphology, and color) of uncoated eggs and egg…
The objective of this study is to develop improved procedures for characterizing amorphous carbon films. Raman spectroscopy is used to characterize amorphous carbon thin films grown by pulsed laser deposition at temperatures between 293 and 873 K. The amount of bond-angle disorder is shown to decrease with increasing…
Several methods of chemical analysis, for example various redox titrations and thermogravimetric approaches, have been adapted to establish the oxygen content in superconducting cuprates and to determine the higher oxidation states of copper and other mixed-valent metals. The present review discusses and complements t…
The collapse transition of a single polymer chain in two and three dimensions was studied using the bond-fluctuation model. The obtained exponents ν of the scaling law 〈S2N〉∼N2ν agree with values proposed in the literature as well as above, at and below the Θ-temperature TΘ. Transition curves and scaling analysis plot…
Crystals of ribonuclease from Streptomyces aureofaciens diffract to atomic resolution at room temperature. Using synchrotron radiation and an imaging-plate scanner, X-ray data have been recorded to 1.20 A resolution from a crystal of native enzyme and to 1.15 A from a crystal of a complex with guanosine-2'-monophospha…
Abstract The main objective of this study was to show that an efficient removal of residual monomers is very important for in situ compatibilization of immiscible polymer blends by one step reactive extrusion. One‐step reactive extrusion means that when compatibilizing two immiscible polymers with one polymer containi…
Electron beam induced deposition from W(CO)6 was studied for beam energies between 2 and 20 keV and a range of exposure doses, to investigate the dependence of deposit thickness and electrical conductivity on energy and the dependence of deposit conductance on cumulative exposure dose. Larger deposited thicknesses and…
Fluorindate glasses containing 1,2,3,4 ${\mathrm{ErF}}_{3}$ mol % were prepared in a dry box under argon atmosphere. Absorption, Stokes luminescence (under visible and infrared excitation), the dependence of $^{4}$${\mathit{S}}_{3/2}$, $^{4}$${\mathit{I}}_{11/2}$, and $^{4}$${\mathit{I}}_{13/2}$ lifetimes with Er conc…
The integrated absorption cross section, the spontaneous emission probability, and the stimulated emission cross section of Yb 3+ were determined in silicate, phosphate, borate, germanate, aluminate, gallate, and ZBLAN host glasses. The compositional dependence of the stimulated emission cross section of the 2 F 5/2 →…
The structure and reactivity of Rh films supported on thesurface of a CeO2single crystal were studied using Augerelectron spectroscopy (AES) and temperature-programmeddesorption (TPD). Rhodium films deposited from the vapor phasewere found to grow via the nucleation of three-dimensionalparticles at a sample temperatur…
An on-chip aluminum interconnect carries an intense electric current at an elevated temperature, motivating atoms to diffuse in the solid state, and inducing voids that may cause an open failure. Recent observations have shown that a void sometimes collapses to a slit running nearly perpendicular to the electric curre…
Abstract This paper provides a scientific treatment for mixing of rubber with reinforcing fillers. The primary attention is given to the viscoelastic nature of rubber. It is addressed to the practitioners of rubber processing, who have hands-on experience but lack familiarity with viscoelasticity. In the first part we…
Abstract The results from four research projects on ammonia stress corrosion cracking (SCC) are provided, including the effect of oxygen and water in the ammonia, prevention of SCC with electrochemical methods, crack growth rate studies, and behavior of welds. Practical recommendations are given for construction, insp…