Processing and Properties of Metal Matrix Composites

The study was conducted to investigate the general properties and processing methods of metal matrix composites in comparison with polymer matrix composites and ceramic matrix composites. In addition, the properties of the most widely used metal matrix composites (aluminum and magnesium) were also studied. The information was collected from published online articles and journals on metal matrix composites. From the study, I found out that while metal matrix composites have been widely used in the aerospace and automobile industry, their properties are still being researched for further development and applications

Characterization of the nitrogen split interstitial defect in wurtzite aluminum nitride using density functional theory

We carried out Heyd-Scuseria-Ernzerhof hybrid density functional theory plane wave supercell calculations in wurtzite aluminum nitride in order to characterize the geometry, formation energies, transition levels and hyperfine tensors of the nitrogen split interstitial defect. The calculated hyperfine tensors may provide useful fingerprint of this defect for electron paramagnetic resonance measurement.Comment: 5 pages, 3 figure

Mainstreaming Grassroots Adaptation and Building Climate Resilient Agriculture in SAT Vietnam

Vietnam has a population of more than 86 million people, and an inland surface of 33,115,000 ha. Forest and agricultural lands, cover 44.7% and 28.4%, respectively. The agricultural sector, including crops, livestock, fisheries and aquaculture accounts for more than 20% of the national GDP, 65% of employment and 30% of export value. The agricultural sector has a considerable influence on the national economic growth, poverty eradication and malnutrition elimination (GSO 2010)...

Определение БАПНА-амидазной активности иммуноглобулинов у больных кишечными инфекциями

АМИДОГИДРОЛАЗЫИММУНОГЛОБУЛИНЫАНТИТЕЛАКИШЕЧНЫЕ БОЛЕЗНИАНТИТЕЛА КАТАЛИТИЧЕСКИЕИНФЕКЦИЯБАПНА-АМИДАЗНАЯ АКТИВНОСТ

Performance of the CMS Cathode Strip Chambers with Cosmic Rays

The Cathode Strip Chambers (CSCs) constitute the primary muon tracking device in the CMS endcaps. Their performance has been evaluated using data taken during a cosmic ray run in fall 2008. Measured noise levels are low, with the number of noisy channels well below 1%. Coordinate resolution was measured for all types of chambers, and fall in the range 47 microns to 243 microns. The efficiencies for local charged track triggers, for hit and for segments reconstruction were measured, and are above 99%. The timing resolution per layer is approximately 5 ns