in this investigation, hydroxyapatite (hap) nanostructure with uniform morphologies, controllable size, nano-dispersion and narrow-size distribution in diameter has been synthesized successfully by low-temperature hydrothermal process, and the as-synthesized powders were characterized by energy-dispersive x-ray spectroscopy, scanning electron microscopy, high-resolution transmission electron mi...

cobalt (ii) chloride was used as a precursor to prepare co 3 o 4 nanotubes in reverse micelles. tween 80 was added as surfactant. the products were characterized by x-ray diffraction (xrd), scanning electron microscopy (sem) and transmission electron microscopy. the diameter of co 3 o 4 nanotubes was about 58 nm and the average length of them was around 261 nm. the study provides a simple and e...

The Electron Cyclotron Emission (ECE) diagnostic system in ITER provides essential information for plasma control and for evaluating the plasma performance. It measures the electron temperature profile (edge/core), electron temperature fluctuations and radiated power in the electron cyclotron frequency range from the plasma. Virginia Diodes Inc. (VDI) has designed and developed a stateof-the-ar...

Here we investigate the variability of physical parameters in the broad line region (BLR) of NGC 5548 using the BP method given by Popović (2003). We apply the method on the Balmer lines observed from 1996 till 2004, and found that variability seen in lines, is also present in the electron temperature. We found that the averaged electron temperature for the period was T= 22600 K, and that varie...

Temperature-dependent thermopower and Hall-effect measurements, combined with model calculations including all of the relevant elasticand inelastic-scattering mechanisms, are used to quantify the role of charged line defects on electron transport in n-type InN films grown by molecular-beam epitaxy. Films with electron concentrations between 4 × 1017 and 5 × 1019 cm−3 were investigated. Charged ...

Temperature dependence of the GaN-Dual-Gate MESFET (GaNDGMESFET) DC-characteristics is investigated using two dimensional numerical simulations. Differential equations derived from a Hydrodynamic electron transport model describe the physical proprieties of the device. Simulation results over a wide range of temperature from 300 K to 900 K performed on an industrial software Atlas from SILVACO ...

Separatrix of the single-null diverted plasma produced in the HL-2A tokamak is determined by a fast algorithm for identifying plasma boundary. Higher power LH wave (1.5MW) is injected into the diverted plasma with a slightly asymmetric spectrum. Plasma heating by electron Landau interaction results in operation scenarios of preferentially dominant electron heating. Current profile control under...