magnetotellurics (mt) is a geophysical passive technique for exploring geothermal reservoirs. it utilizes a broad spectrum of natural geomagnetic fields for electromagnetic induction in the earth. this method is also preferred over dc-resistivity methods, particularly where the exploration of subsurface deep aquifers is considered. the role of mt method in the exploration of geothermal reservoi...

We used transient electromagnetic (TEM) to map the hydrogeological structures in Choushui River Alluvial Fan Yunlin County of central Taiwan. A total 63 TEM measurements were collected using FASTSNAP system with 50 × m in-loop configurations middle and distal fan. The 1D model, based on prior information, was constructed from inverted soundings. Results showed a thin, resistive shallow layer 40...

In this work' we develop models of resistive bridging faults and study the fault coverage on ISCAS85 circuits of different test sets using resistive and zero-ohm bridges at different supply voltages. These results explain several previously observed anomalous behaviors. In order to serve as a reference, we have developed the $rst resistive bridging faylt ATPG, which attempts to detect the maxim...

two dimensional single frequency scalar vlf data modeling has been studied in this research. vlf method is one of the electromagnetic investigation methods. radio frequency waves are used for investigation of conductive deposits (paal, 1968). synthetic modeling and inversion of single frequency and multiple frequencies of vlf signals was done by oskooi (2004) for two dimensional simple structur...

Many papers discuss the Maximum Power Point Tracking (MPPT) control simulation "Perturb and Observe" (P&O), while its realization practice in systems remains a major challenge. The purpose of this research to study experimentally by optimizing wind turbines PMSG connected DC-DC converter (Boost) resistive load. proposed MPPT P&O algorithm modification will be analyzed comparing ...

Self protective output drivers have been used extensively as an elegant solution against Electro Static Discharge. However, recent measurement data show unexpectedly low HBM and MM results in low resistive EPI technologies. The HBM-TLP correlation issue is investigated and a novel local parallel protection scheme for output drivers is presented, solving the competitive triggering issue using on...

Resistive switching memory (ReRAM) has attracted much attention in recent times owing to its fast switching, simple structure, and non-volatility. Flexible and transparent electronic devices have also attracted considerable attention. We therefore fabricated an Al2O3-based ReRAM with transparent indium-zinc-oxide (IZO) electrodes on a flexible substrate. The device transmittance was found to be...

BACKGROUND In utero exposure to hyperglycemia is becoming increasingly prevalent as the number of women entering pregnancy with type II diabetes, or developing gestational diabetes, increases. Both animal studies and epidemiologic investigations have found cardiovascular abnormalities in adult offspring of hyperglycemic mothers (OHM). OBJECTIVE We hypothesized that adult OHM would have abnorm...

A wideband CMOS variable gain low noise amplifier suitable for multi-standard radio applications between 75 MHz and 3 GHz is presented. Wideband matching to 50 Ohm (single ended) is achieved using a common-drain feedback stage whereas variable gain is realized using a resistive attenuator. The circuit has been designed in a 65 nm CMOS process and achieves 22 dB maximum gain, 29 dB gain range, 3...

A four-stage parallel-plate gas insulated Blumlein pulser is under construction. This 90-ohm 16-ns (FWHM) pulser, targeted for operation a~ 400 kV, will be switched by an array of photoconductors triggered by a 15-J, Nd:glass laser for a 1-to-2-ns rise time. A smaller single-stage 100-kV 60-ohm 14-ns (FWHM) pulser, which has been used as a proof-of-principle testbed for the photoconductive swit...