An experiment is described in which plasma flow to a tokamak limiter is controlled through the use of a local toroidal divertor coil mounted inside the limiter itself. This coil produces a local perturbed field Be approximately equal to the local unperturbed toroidal field B r ~ 3 kG, such that when Be adds to Br the field lines move into the limiter and the local plasma flow to it increases by...

A method of fabricating micromachined Corner Cube Reflectors (CCRs) with high surface flatness and accurate control of mirror angle is demonstrated. A parallel, automated three-dimensional self-assembly process is presented, using bonded silicon-on-insulator material and out-of-plane rotation powered by the surface tension of thick photoresist pads. Precise alignment is achieved by minimising t...

In this paper, we investigate the possibility of employing a graphene-based hyperbolic metamaterial as tunable optical power limiter and/or controllable laser noise suppressor for terahertz frequency range. This is first time that mentioned functionalities are obtained with voltage-controlled nonlinear utilizing graphene. We believe such structures, feasible by means planar deposition technique...

The error probability achieved by a differential detector with a bandpass limiter preceding the receiver is analyzed for a slow-frequency-hopped CPFSK diversity waveform transmitted over a partial-band noise jamming channel, and is compared to the system’s performance without the bandpass limiter. The system’s thermal noise is not neglected in the analysis. In principle, each bit is repeated on...

The basic concept of multi-dimensional limiting process (MLP) on unstructured grids is inherited and modified for improving shock stabilities and reducing numerical dissipation on smooth regions. A relaxed version of MLP condition, simply named as weak-MLP, is proposed for reducing dissipation. Moreover, a stricter condition, that is the strict-MLP condition, is proposed to enhance the numerica...

In this paper, we adapt a simple weighted essentially non-oscillatory (WENO) limiter, originally designed for discontinuous Galerkin (DG) schemes [42], to the correction procedure via reconstruction (CPR) framework for solving conservation laws. The objective of this simple WENO limiter is to simultaneously maintain uniform high order accuracy of the CPR framework in smooth regions and control ...

The reliability of electronic device is threatened in high power microwave (HPM) environment. In accordance with the situation that the emulation is ineffective in evaluating the accuracy and precision of the HPM effect to electronic device, the experimental method is used to resolve the problem. Low Noise Amplifier (LNA) and Limiter are selected as the objects for the experiments, the structur...