Materials Literature
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The structure, microstructure, magnetic and electrical properties of La0.85K0.15MnO3 polycrystalline manganites synthesized via three methods: solid state (SS), sol-gel (SG) and co-precipitation (CP) and then sintered with various sintering temperature and synthesized were investigated and reported. XRD patterns of al…
Two gross count and one radionuclide identification backpack-type radiation detectors (BRDs) were used to validate radiological test requirements listed in the Domestic Nuclear Detection Office (DNDO) Technical Capability Standard (TCS) for BRDs. For this purpose, a linear motion system was used to simulate the relati…
Materiais com estrutura perovskita são potenciais catalisadores para prevenir a emissão de componentes poluentes no meio ambiente. Vários métodos têm sido propostos para a síntese desses materiais visando produzir materiais homogêneos com tamanho de partícula nanométrico. Neste trabalho os compostos manganato de lantâ…
Sharp selectivity of hydrocarboaluminates of caustic-earth metals and magnesium oxide in relation to the most dangerous classes of the organic substances playing defining role in decrease in extent of decomposition level and deterioration of produced alumina properties– humic, carboxylic acids and high-molecular organ…
The problem of auto-feeding of aluminum fluoride with high bulk density is discussed. The possibility of reducing the specific consumption of aluminum fluoride in relation to the rational choice of physical and chemical characteristics is studied.
Este trabalho destina-se a producao de um material inovador, composto doresiduo proveniente da fabricacao de celulose e papel, e reforcado com as fibras das folhascaulinares do bambu, especie Dendrocalamus giganteus, e rejeitos de embalagens TetraPak (plastico e aluminio). Foram produzidas chapas de particulas prensad…
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Abstract : Reconfigurable multifunctional structures, which allow combined changes of shape, functionality and mechanical properties on demand, require new adaptive materials and novel chemistry that permit reversible modulation of mechanical properties in effective manner. They also demand the development of robust m…
International audience
JENDL-4.0を中核とする近年の評価済み核データに基づき、核反応断面積,核分裂収率,核異性体比,半減期を修正した、核種崩壊生成計算コードORIGEN2用の断面積ライブラリセット(ORLIBJ40)を作成した。作成した断面積ライブラリは、PWRとBWRの代表的なUO2燃料及びMOX燃料用のライブラリ(24個)と種々の高速炉燃料用のライブラリ(36個)である。本ライブラリを使用した軽水炉使用済み燃料の照射後試験解析等により、従来のORIGEN2ライブラリに比べて、特に、Am及びCmの同位体といったマイナーアクチノイド、EuやSmの同位体等の断面積に大きな感度を有する核分裂生成核種、並びに79Se等の長寿命核分裂生成核種のインベント…
The objective of this investigation is to study the fatigue behaviour of Dual phase(DP)steel with varying percentage of martensite. The study is conducted on samples of welded Dual phase steel prepared by intercritical annealing process with temperature varying from 7300C to 8100C. In this process both coarse and fine…
The composite Ag2S/K2Ti4O9 photocatalyst was synthesized via a precipitation method. The structure of the photocatalyst was determined by powder X-ray diffraction, scanning electron microscope. The photocatalytic properties for organic matter degradation of the photocatalyst were examined under visible light irradiati…
A capability of control of melting alumina composition by means of a value of phase volt-age dc component is shown.
Hydroxyapatite and chitosan are biomaterials affording biocompatibility and osteoconductivity which may provoke tissue regeneration. This research studies the effect of hydroxyapatite-chitosan 30:70 and 70:30 application to promote fibroblast proliferation in bone regeneration. Purpose. The study aims is to find the e…
Al-20si-5Fe ribbons were produced by melt spinning at the rotating speed of 20 and 40m/s. The microstructure of ribbons and conventionally cast alloys were characterized using scanning electron microscopy (SEM) together with the energy dispersive spectroscopy (EDS), X-ray diffractometry (XRD) method. The microhardness…
Abstract : The Department of Defense is interested in lithium tetraborate (Li2B4O7) crystals for their possible use as a solid state neutron detection material. With large concentrations of 6Li and 10B, it has a high neutron capture cross section. Furthermore, the crystal fluoresces in the presence of ionizing radiati…
The scheelite type tungstates MWO4 have been studied for a long time due to their optical properties. The main property is the luminescence, both intrinsic and extrinsic (when doped with trivalent lanthanide ions, Ln3+). Another group of scheelite- typed are the double tungstates, ALn(WO4)2. The main feature of these…
We engineered functional cardiac patches by seeding neonatal rat cardiomyocytes onto carbon nanotube (CNT)-incorporated photo-cross-linkable gelatin methacrylate (GelMA) hydrogels. The resulting cardiac constructs showed excellent mechanical integrity and advanced electrophysiological functions. Specifically, myocardi…
In the scope of the paper, there were carried out calculations of highest possible load and probability of fail-safe functioning of thin sheet rolled-on profiles vault. The actuality of the research is caused by comprehensive study' insufficiency of thin sheet rolled-on U-form profiles vault's functioning reliability.…
Abstract : This research investigated the effects of electron damage on single walled carbon nanotube (CNT) thin films. CNT thin films were irradiated by electrons with energies of 500 keV and 1 MeV to determine what damage was created in the CNT thin film structure, how it affected conductivity, and what changes were…