Materials Literature
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In this work two perovskites were prepared: LaMn1-xFe xO3, and LaMn0.1-x Fe0.90Mo xO3. XRD and Mössbauer spectroscopy suggest the formation of pure phase perovskite with the incorporation of Fe and Mo in the structure. The catalytic activity of these materials was studied in two reactions with H2O2: the decomposition…
Acrylic resins used for provisional prostheses should have satisfactory superficial characteristics in order to ensure gingival health and low bacterial attachment. The purpose of the present study was to evaluate the superficial roughness and contact angle after two types of polishing and the Vickers hardness of thre…
Sol-gel synthesis has been investigated in order to produce stoichiometric compositions of Ba3Co2Fe24O41 (Co2Z) at lower calcination temperatures, using citric acid as quelant complex. Using this method, Co2Z ferrite could be synthesized at 950 °C, about 400 °C lower than that of conventional method. Nanocomposites (8…
Facile synthesis of a series of thermoelectrically relevant AgPbmSbTem+2 (m = 1–18) nanoparticles (see figure) is carried out by using a colloidal synthetic route. As-synthesized nanocrystals are spherical in geometry and adopt a cubic NaCl-type structure. These quaternary nanocrystals behave as solid solutions at roo…
Composition Dependence in BiFeO3 Film Capacitor with Suppressed Leakage Current by Nd and Mn Cosubstitution and Their Ferroelectric Properties, Kawae, Takeshi, Tsuda, Hisashi, Naganuma, Hiroshi, Yamada, Satoru, Kumeda, Minoru, Okamura, Soichiro, Morimoto, Akiharu
Abstract The electrochemical behaviour of a near‐ β Ti‐13Nb‐13Zr alloy for the application as implants was investigated in various solutions. The electrolytes used were 0.9 wt% NaCl solution, Hanks' solution and a culture medium known as minimum essential medium (MEM) composed of salts, vitamins and amino acids, all a…
In this study, characterization of cellular mechanics ofW303yeast cells was conducted using nanoneedles inside an environmental SEM (ESEM). This enhanced ESEM system comprises a standard ESEM instrument as a nanoimaging tool, a cooling stage as a humidity controller for cellular biology and 7 degrees of freedom and li…
The structural and electrical properties before and after laser annealing of spin-coated films of doped silicon nanocrystals (ncs) produced from the gas phase are presented. While the as-deposited films form a porous network of ncs and show only weak electrical conductivity independent of the doping level, a laser ann…
The growth rate of stress corrosion cracking (SCC) was measured for nonsensitized and sensitized, cold-worked Type 316 (UNS S31600, CW316) and Type 304 (UNS S30400, CW304) in hydrogenated and oxygenated pressurized water reactor (PWR) primary water, each containing standard boron and lithium additions. First, the depe…
A. POULIC y KOVA ´ ,P. H AS y LER ,M. L YSAKOVAAND B. SPEARS. 2008. The ecology of freshwater epipelic algae: an update. Phycologia 47: 437- 450. DOI: 10.2216/07-59.1. Epipelic algae perform a range of ecosystem functions including biostabilisation of sediments, regulation of benthic-pelagic nutrient cycling, and prim…
Lead-free K0.5Na0.5NbO3 (KNN) ferroelectric films with enhanced thickness of 3.5 μm were prepared by a polyvinylpyrrolidone-modified chemical solution deposition method. A single perovskite phase with a dense morphology and (100) orientation was obtained at relatively low annealing temperature of 600 °C. A large effec…
Anticipated growth of the nanotechnology industry has motivated the development of rapid, relevant and efficient testing strategies to evaluate the biological activity and toxic potential of the growing number of novel nanoparticles. Since nanoparticles may interact with biological systems in unforeseen ways, it is im…
The structure and interrelations of subsystems of expert system for of a combine's harvester technological adjustment is considered. expert system's operating modes and various aspects of representation of knowledge are described.
A withdrawa l of a mathematica l mode l of stress-strain state curved beam changing sections and curvature in polar coordinates, allowing the decision through power and logarithmic functions.
In this paper given results of comparative experiments on research of correcting ability of two Reed-Muller codes likelihood decoders (Sidel'nikov-Pershakov decoder and Loidreau-Sakkour decoder) are presented. For reception of experimental results the program imitating model of the digital data link is realized.
In article the approach to the analysis of an intense condition of a design based on division of stress on stress connected with the structural stress, a configuration of a design as a whole and with microgeometry in front of the toe, the notch stress is considered. Results of increase of fatigue durability pipe conne…
In the article the theoretical aspects of the functional scheme's construction and the groundwork of the intellectual systems of the decision-making support are scrutinized. They are discovered by means of the complex application of the mathematical methods at the solving of the problems in the various spheres of an a…
The analysis of agricultural machines as objects of hydrofication is lead. The description of the device and functioning one-machine drive is given, the mathematical model, dynamics of a multiline hydraulic drive is resulted.
The effect of residual stress due to the curing process on damage evolution in unidirectional (UD) fibre-reinforced polymer-matrix composites under longitudinal and transverse loading has been investigated using a three-dimensional micromechanical representative volume element (RVE) model with a hexagonal packing geom…