zinc is a substance that regulates neural excitability by binding whit sodium channel and potassium channel. the efficiency of free zinc ion, make down the neural survival rate, reduced the peak amplitude of na+ and make depolarization na channel, increased the peak amplitude of transition outward k+ currents and delayed rectifier. also it is an effective blocker of one subtype of tetrodoxine (...

In order to analyze the shear effect of secondary currents on flow structures in a meandering channel, this research developed two-dimensional shallow water model, which included dispersion stress term accounting for vertical velocity profile. A new equation profile that nonlinear effects was derived from motion channel with sharp curvature. Using experiment data obtained large-scale channels, ...

The simulation of frequency-selective multiple-input multipleoutput (MIMO) channels is computationally expensive. Especially on a real-time simulation platform the number of paths that can be realized is limited by the available processing power. This paper presents a new algorithm, that reduces the number of paths in the channel impulse responses while preserving the original power delay profi...

Detailed bathymetry data are collected on short reaches and are usually not available for the entire stream network at a regional scale. By using the field data collected for a reach along the Brazos River in Texas, a geographic information system (GIS) framework for describing river channel bathymetry at regional-scale is presented. The framework is based on deriving relationships among differ...

Multiplexed FBG temperature sensors are used to measure a temperature profile inside an irradiation channel of a low flux nuclear reactor. After 40 months, we show that the sensors still operate satisfactorily. The measured drift is lower than 3 ◦C.

An ability to completely customise the mode profile in an electromagnetic waveguide would be a useful ability. Currently, the transverse mode profile in a waveguide might be varied, but this is usually a side effect of design constraints, or for control of dispersion. In contrast, here we show how to control the longitudinal (propagation direction) mode profile on a sub-wavelength scale, but wi...

We describe the first DNS-based measurement of the complete mean response of a turbulent channel flow to small external disturbances. Space-time impulsive perturbations are applied at one channel wall, and the linear response describes their mean effect on the flow field as a function of spatial and temporal separations. The turbulent response is shown to differ from the response a laminar flow...

A method is presented to determine the diversity gain achieved by increasing the hopping rate in a frequency hopped spread spectrum system using frequency mean square correlation (FMSC). In particular, it is demonstrated that the detailed shape of the delay power profile of a given channel does not play a fundamental role in the determination of the performance saturation point given the FMSC o...

Channel line recognition is one of extremely important technologies in intelligent driving field. In recent years, machine vision has been the mainstream method to solve channel line recognition problems. To overcome such deficiencies of existing channel line recognition algorithms as being complicated, slow and short of robustness, the Thesis provides a new and rapid channel line recognition a...