The objective of this diploma work is to investigate a set of Multiple Input Multiple Output (MIMO) channel models compatible with the emerging IEEE 802.11n standard. This diploma work validates also advanced, innovative tools and wireless technologies that are necessary to facilitate wireless applications while maximizing spectral efficiency and throughput. MIMO channel models can be used to e...

ECaC is the first member of a new subfamily of Ca2+ channels embedded in the large TRPC family that includes numerous channel proteins. The channel has been proposed as the main gatekeeper of transcellular Ca2+ transport in kidney and intestine. The functional characterization of this channel is evolving rapidly and may have far reaching consequences for other channels of the TRPC family. The g...

In cellular communication systems, channel assignment schemes are very important to improve teletraf®c performance characteristics. Because of the overlapping design of the cells in cellular communication systems, a mobile user is capable of communicating with two different bases. In this paper, a new channel assignment scheme is proposed to improve the blocking probability of a cellular commun...

The simulation of wireless communication systems with multiple antennas requires a spatial channel model which reasonably characterizes the space and time variant effects of the mobile radio channel. This paper describes a vector channel model with stochastic fading simulation, which combines several advantages from purely stochastic and geometrical channel models. The resulting model is consis...

We report on the influence of the channel doping on dc, high frequency, and noise performance of GaN metal–semiconductor field-effect transistors ~MESFETs! grown on sapphire substrates. The devices with the channel thicknesses from 50 to 70 nm and doping levels up to 1.5310 cm were investigated. An increase in the channel doping results in the improved dc characteristics, higher cutoff, and max...

Nanofluids are stable suspensions of nanoparticles in conventional heat transfer fluids (base fluids) that exhibit better thermal characteristics compared to those of the base fluids. It is important to clarify various aspects of nanofluids behavior. In order to identify the thermal and hydrodynamic behavior of nanofluids flowing through non-circular ducts, in the present study the laminar flow...

Granular residual is created in the banking network when there are a few large banks with many small banks. In this case, the effect of the shocks on each bank not lost in total that can lead to macro-economic consequences. The transmission of monetary policy through change in bank facilities is one of the key mechanisms affecting monetary policies. The power of transmission of monetary policy ...

Ultra-high mobility compound semiconductor-based MOSFETs and quantum-well FETs could enable the next generation of logic transistors operating at low supply voltages since these materials exhibit excellent electron transport properties. While the long channel In0.53Ga0.47As MOSFET characteristics exhibit promising characteristics with unpinned Fermi level at the InGaAs-dielectric interface, the...

In this paper, the temperature dependence of some characteristics of cylindrical gate-all-around Si nanowire field effect transistor (GAA-Si-NWFET) is investigated to representing the temperature nano-sensor structures and improving their performance. Firstly, we calculate the temperature sensitivity of drain-source current versus the gate-source voltage of GAA-Si-NWFET to propose the temperatu...

A numerical model is developed to simulate the transport phenomena in the flow channel between parallel plates with porous and non-porous (or impermeable) walls. The continuity and momentum equations were solved first, assuming the wall Reynolds number in the range of with the suction or injection of air at a speed equal to the uniform inlet velocity. The results show that at constant inlet and...