As a chemically inert wide bandgap semiconductor material with high hardness and thermal conductivity, stable electrical characteristics, silicon carbide SiC is attractive for harsh environment electronics sensors applications. The concept of includes extremes temperature, pressure, shock loads, radiation chemical attacks those arise in aircraft automotive engines, industrial gas turbines, duri...

Transmission Electron Microscopy shows that the InN samples doped with either increasing or constant Mg concentration follow a cation or anion substrate polarity. In-polar samples change growth polarity when the Mg concentration is >10 cm. N-polar samples have much higher density of planar defects than In-polar samples and their presence leads to a decrease in dislocation density. In the N-pola...

Polycrystalline 3C-SiC (poly-SiC) is a promising structural material for microelectromechanical systems (MEMS) used in harsh environments. In order to realize poly-SiC based MEMS devices, the electrical, mechanical and metal contact properties of poly-SiC have to be optimized. The poly-SiC films, reviewed here, are deposited by low pressure chemical vapor deposition using 1,3-disilabutane (DSB)...

In this work, the influence of Cr and Mn impurity atoms on electronic structure magnetic properties 3C–SiC was analyzed by carrying out first-principles calculations using GGA + U method, Si vacancies co-doped system also considered. The results showed systems mono-doped with to be spin-polarized had total moments 3.05 5.00 μB, respectively. ferromagnetic state each various (Cr, Mn)-co-doped de...

LaMnO3 and 1% Pd-, Ag-, or Y-doped perovskite type nanomaterials were prepared by the sol-gel method, followed heat treatment at a low temperature (600 °C for 6 h). The investigation through X-ray diffraction FT-IR spectroscopy indicated that all samples well crystallized, without secondary phases, transition metal doping changed crystal structure from R-3c space group undoped to Pm-3m doped co...

A new Firmicutes isolate, strain HV4-6-A5C, was obtained from the hydrolysis stage of a mesophilic and anaerobic two-stage lab-scale leach-bed system for biomethanation of fresh grass. It is assumed that the bacterial isolate contributes to plant biomass degradation. Here, we report a draft annotated genome sequence of this organism.

ELEMENTS DURING CHONDRULE FORMATION. G. Libourel, A. N. Krot and L. Tissandier, CRPGCNRS 15, Rue Notre-Dame des Pauvres, BP20, 54501 Vandoeuvre les Nancy, France, ENSG-INPL, BP40, 54501 Vandoeuvre les Nancy, France ([email protected]), Hawai'i Institute of Geophysics and Planetology, School of Ocean and Earth Science and Technology, University of Hawai'i at Manoa, Honolulu, HI 96822, USA.

Specialty fibers such as chirally-coupled-core show a high potential for further power scaling of single-frequency fiber amplifiers. For the first time, we demonstrate spliceless all-fiber amplifier, where all optical components are directly integrated in single Yb$^{3+}$-doped 3C-fiber. Such laser design enables compact and...