The fast ignition (FI) concept is a variant of inertial fusion in which the compression and ignition steps are separated. Calculations suggest this would allow a substantial improvement in target gain, and could form the basis of a very attractive power plant. Transporting the energy to ignite a target involves the physics of light-driven relativistic plasmas; a subject which is not well unders...

background: this study is the first research investigating the possible effect of pulsed power signals on the characteristics of cortical bone by comparing the mechanical properties of this type of bone pre and post expose to pulsed power. methods: a positive buck-boost converter was applied to generate adjustable high voltage, high frequency pulses (up to 500 v and 10 khz). the functional beha...

Ubiquitous sensor networks (USNs) implemented by wireless sensor networks (WSNs) play a critical role for the next generation ubiquitous networks. Nowadays, the evolving “Internet of Thing”, which has been deemed as a mainstream of future Internet, raises even more the already high hopes of WSN and has attracted the interest of the research community worldwide. Since the sensor nodes are often ...

The possibilities and limitations of linear compression of positively chirped pulses in the negative-dispersion region of a step-index large mode-area single-mode optical fibre are investigated for the first time. Analytical formulae for critical values of radiation power are found, below which pedestal-free pulse compression is possible down to the Fourier limit. It is demonstrated that at rad...

We show how several basic image compression methods (predictive coding, transform coding, and pyramid coding) are based on self-similarity, and a 1/f2 power law. Phase transitions often show self-similarity which is characterized by a spectral power law. Natural images often show a self-similarity which is also characterized by a power law spectrum which is near 1/f2. Exploring physical analogs...

This work addresses two key topics in the field of energy harvesting and wireless power transfer. The first is the optimum signal design for improved RF-DC conversion efficiency in rectifier circuits by using time varying envelope signals. The second is the design of rectifiers that present reduced sensitivity to input power and output load variations by introducing resistance compression netwo...

The proposed scheme, called the IOC-LP (input reduction and one block compression for low power test), compresses the test data of scan based SoCs to improve the compression ratio in the ATPG process. It does so by using the modified input reduction and novel techniques, a new scan flip-flop reordering for low power test, the newly proposed one block compression, and a novel reordering algorith...

We present the nonlinear self-compression of pulses from a high repetition rate thuliumdoped fiber laser system using a gas-filled antiresonant hollow-core fiber. Sub-3-cycle pulses with several GW peak power at 21.4 W of average power have been generated. OCIS codes: (140.3070) IR and far-IR lasers; (320.5520) Pulse compression; (340.7480) X-rays, soft x-rays, (EUV)

There is a demand for reduced power consumption in the vapor compression refrigeration cycle. Coefficient of performance of window-air conditioners considerably decreases and power consumption increases under very hot conditions. These problems have encouragecl studies aimed at improving the performance of window-air-conditioners by enhancing the heat transfer rate in the condenser. In this ar...