Direct tunneling gate currents of ultrathin gate oxide thickness metal oxide semiconductor field effect transistors ~MOSFETs! are modeled in a two-step calculation procedure based on the treatment of physical microscopic data acquired during Monte Carlo device simulation. Gate currents are obtained by weighting the carrier perpendicular energy distribution at the Si/SiO2 and N-poly–Si/SiO2 inte...

As a preliminary step toward performing respiration compensated attenuation correction of respiratory-gated cardiac PET data, we acquired and automatically segmented respiratory-gated transmission data for a dog breathing on its own under gas anesthesia. Transmission data were acquired for 20 min on a CTI/Siemens ECAT EXACT HR (47-slice) scanner. Two respiratory gates were obtained using data f...

The failure behavior and the corresponding physical mechanism of AlGaN/GaN high electron mobility transistors (HEMTs) under transmission line pulse (TLP) stress were investigated in this paper. result shows that output transfer characteristics HEMTs after 90 cycles begin to degrade by comparing with fresh ones 40 V TLP voltage, gate leakage current devices slightly increases. When voltage 52 wa...

Objective: Different categories are available for estimating of radiation dose. Radioisotopes with the same energy and almost the same physical properties have similar effects. Monte Carlo technique is a computerized method based on mathematical simulation of physical processes. The main purpose of this study is to show that beta particles are not able to penetrate deep into the water. also dif...

Optical logic gates play important roles in all-optical circuits, which lie at the heart of next-generation optical computing technology. However, intrinsic contradiction between compactness and robustness hinders development this field. Here, we propose a simple design principle that can possess multiple-input-output states according to incident circular polarization direction based on metasur...

Varela C. The gating of neocortical information by modulators. J Neurophysiol 109: 1229–1232, 2013. First published September 5, 2012; doi:10.1152/jn.00701.2012.—Thalamic input to the neocortex is crucial for sensory perception and constitutes the basis of complex awake behavior. Connections within the neocortex play an important role in internally generated neural activity, which is considered...

FACTS technology improves the power system stability by providing the necessary compensation to transmission lines. Interline Power Flow Controller (IPFC) is one such unique concept for exchange of power flow in case of interconnected systems. In this paper, an IPFC is proposed to improve the voltage stability of a given power system network consisting of three transmission lines. The gate trig...

As device dimensions shrink into the nanometer range, power and performance constraints prohibit the longevity of traditional MOS devices in circuit design. A finFET, a quasi-planar double-gated device, has emerged as a replacement. FinFETs are formed by creating a silicon fin which protrudes out of the wafer, wrapping a gate around the fin, and then doping the ends of the fin to form the sourc...