نتایج جستجو برای: barez and dazakabad sub
تعداد نتایج: 16863858 فیلتر نتایج به سال:
forest cover is one of the most effective factors in reducing flooding in northern iran, so that in recent years the destruction, land use changing and uncontrolled harvesting of forest areas, has greatly increased the number and magnitude of floods. so far, there have been few studies on forest hydrology in iran, particularly the northern hyrcanian forests. this study examines the impact of a ...
Solid Oxide Fuel Cells (SOFCs) can convert chemical energy into electrical energy, with high conversion rate, safe operation, no pollutant emissions, and is one of the most potential new power generation devices in future. However, at low medium temperature (below 800℃), cathode impedance SOFCs will increase sharply, resulting adverse effects on cell performance. Finding materials that work key...
Rapid densification of ceramics has been realized and its merits were demonstrated through multiple approaches out which UHS flash sintering attract recent attention. So far, however, scalability remains difficult. A rise in throughput is enabled by the introduction blacklight powered novel light source technology. Intense illumination with photon energy above bandgap (blacklight) allows high a...
Abstract The crystal structures and formation reactions of lanthanum hydride selenides were studied by neutron diffraction on the deuterides. reaction La 2 D 2− x Se with deuterium gas (298 K≤ T ≤567 K, 0.1 MPa≤ p (D )≤9.0 MPa) was followed in situ a sapphire single‐crystal gas‐pressure cell time resolution two minutes. phase fractions Se, 3 4 determined Rietveld refinement. With stepwise incre...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید