Materials Literature
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It is known that copper has electrical and thermal conductivity. Therefore Cu-based alloys are used in technological and engineering applications. This paper is aimed at studying influence of various heat treatment on electrical resistivity properties of samples from binary Cu-Mn alloy. The chemical composition of the…
Studies on the sintering of manganese pyrovanadate depending on the temperature and the crystallite size show that we are prevented from obtaining a bulk ceramic sample by the anisotropic growth of grains. Investigation of the electrical properties of Mn 2 V 2 O 7 in the temperature range of 250–800°C reveals the acti…
A fluid model for the tokamak edge pressure profile required by the conservation of particles, momentum and energy in the presence of specified heating and fueling sources and electromagnetic and geometric parameters has been developed. Kinetics effects of ion orbit loss are incorporated into the model. The use of thi…
Effect of method of titanium dioxide hydrogel precipitation from TiCl 4 and NH 4 OH solutions on the properties of 0.0025–0.44 M hydrosols prepared by exposure to ultrasound radiation was studied. The hydrosols was shown to contain primary particles united into aggregates with average size 22–120 nm irrespective of hy…
Materials scientists at Harvard University in Massachusetts, working with other researchers across the US, have found a way to harness the quantum behaviour of solid oxide fuel cells (SOFCs), to make them even more efficient and robust. In doing so, they have observed a new type of phase transition in an oxide materia…
An approach for obtaining substrates of variable composition of metal systems is proposed. The spreading of drops of gallium of uniform size on the surfaces of areas of variable composition, obtained via contact melting of the Bi-Pb system is studied. A change in the diameter of a spot is observed, depending on the po…
Purpose: To show how the Six Sigma DMAIC (Define‐Measure‐Analyze‐Improve‐Control) can be used for improving and optimizing the efficiency of patient‐specific QA process by designing site‐specific range tolerances. Methods: The Six Sigma tools (process flow diagram, cause and effect, capability analysis, Pareto chart,…
To study the electric and the thermoelectric properties of silicon thin films (SiTFs), we fabricated devices having SiTFs by using conventional complementary metal-oxide-semiconductor (CMOS)-compatible processes for mass production and extendibility. The conductivities and the Seebeck coefficients of SiTFs for dose co…
Thermal and dielectric characteristics of Fe2O3doped TiO2(FDT) nanopowder is investigated. Formation of FDT was prepared using the formula [1-x] TiO2+ [x] Fe2O3by solid state reaction method. The Surface morphology was studied using atomic force microscopy (AFM) technique; it reveals the average particle size in the r…
Purpose: Determine equivalent Organ at Risk (OAR) tolerance dose (TD) constraints for MV x‐rays and particle therapy. Methods: Equivalent TD estimates for MV x‐rays are determined from an isoeffect, regression‐analysis of published and in‐house constraints for various fractionation schedules (n fractions). The analysi…
Abstract Hydrogen incorporation is critical for explaining defect energies, structure parameters and other physical characteristics of minerals and understanding mantle dynamics. This work analyzed the hydrogen complex defects in jadeite by the plane‐wave pseudo‐potential method based on density functional theory, and…
In traditional concept, the optical properties of semiconductors and semimetals near their fundamental optical band gaps are attributed to single excitations (such electron-hole pairs, excitons...). In our earlier article, we proposed the collective mechanism of π -plasmons for optical properties of low dimensional ca…
Abstract: This review summarizes research and development trends in lithium–oxygen (Li–O 2 ) batteries. Development of a post–lithium-ion battery is highly expected to be a means to solve the global energy problem. The metal–oxygen cell, especially the Li–O 2 cell, attracts attention, since it has much larger theoreti…
The existence, uniqueness, and stability of the inverse problem solution for a scanning differential heterodyne microscope as applied to rectangular plasmonic waveguides have been analyzed. The consideration is based on an algorithm using a trial-and-error method that we proposed previously to characterize plasmonic w…
Modern standards of noise and vibration make the manufacturers of vehicles, machines and construction materials take into account the high demands in the design process. Often there is a need both in vibrations absorbing and in effective sound absorbers. Therefore there was a research on the concentrations of matrix c…
Co-Cr-Mo alloy used for an artificial hip joint prosthesis was treated in a vacuum tubular furnace to obtain a thermal oxidation layer with anticipated surface properties. The tribological performance of the thermal oxidation layer was subsequently characterized under bovine serum albumin (BSA) lubrication by suitable…
The main purpose of this paper is to design, implement and measure a new sample of mantle cloak. A new method called mantle cloak is introduced by cloaking an object by a single, conformal meta-surface which can drastically suppress the scattering of the desired object. In this paper, a grid lattice is placed around a…
Электронные книги и статьи из каталога «СОРБЦИОННО-ИНДИКАТОРНЫЕ СВОЙСТВА ПО ОТНОШЕНИЮ К ПАРАМ ВОДЫ СИСТЕМЫ «ВАНАДИЙСОДЕРЖАЩИЙ СИЛИКАГЕЛЬ-ПОЛИМЕРНАЯ ПЛЕНКА В РАЗЛИЧНЫХ ТЕСТ-СИСТЕМАХ (90,00 руб.)». Скачайте в онлайн-библиотеке Rucont.
The creep of Ni3Ge alloy single crystals oriented along [001], $$[\bar 139]$$ , $$[\bar 234]$$ and $$[\bar 122]$$ strain axes is investigated. It is established that the transition from an octahedral to a cubic slip raises the alloy’s resistance to creep deformation. The slip in cube planes demonstrates the high stabi…
Adenosine triphosphate (ATP)–responsive DNA-based microcapsules loaded with the chemotherapeutic doxorubicin drug are synthesized and incorporated into cancer cells. I. Willner and co-workers find, on page 4262, that over-expressed ATP in cancer cells dissociates the microcapsules and releases the drug, resulting in s…