نتایج جستجو برای: electrical characteristics

تعداد نتایج: 840563  

2010
Kow-Ming Chang Wen-Hsien Tzeng Kou-Chen Liu Yi-Chun Chan Chun-Chih Kuo

Effect of ultraviolet (UV) light exposure on the resistive switching characteristics of a ITO/HfOx/TiN structure were investigated in this study. Samples exposed with and without ITO shield film exhibit distinct switching characteristics, including leakage current, I–V curves, set and reset voltage fluctuation. Based on random circuit network simulation by Liu et al., we suggest the distinction...

Journal: :Plant physiology 2005
Silke Lautner Thorsten Erhard Edgar Grams Rainer Matyssek Jörg Fromm

To gain an understanding of the role of electrical signaling in trees, poplar (Populus trichocarpa, Populus tremula x P. tremuloides) shoots were stimulated by chilling as well as flaming. Two kinds of signal propagation were detected by microelectrode measurements (aphid technique) in the phloem of leaf veins: (1) basipetal, short-distance signaling that led to rapid membrane hyperpolarization...

2012
Yusmeeraz Yusof Yoshiyuki Yanagimoto Shigeyasu Uno Kazuo Nakazato

We demonstrate a nonfaradaic electrochemical impedance spectroscopy measurement of biochemically modified gold plated electrodes using a two-electrode system. The absence of any redox indicator in the impedance measurements provide more precise and accurate characterization of the measured bioanalyte at molecular resolution. An equivalent electrical circuit of the electrodeelectrolyte interface...

2008
Akio Nakagawa Yusuke Kawaguchi Kazutoshi Nakamura

The present paper predicts the silicon limit characteristics of IGBTs, and proposes a novel device structure to achieve the limit. Power MOSFETs have been greatly improved for DC-DC converter applications. It is shown that achieving higher efficiency in the converters necessitates the integration of power MOSFETs and the peripheral circuits in a single package. The authors propose an ideal gate...

1998
ALINA DEUTSCH

A review is presented of the electrical characteristics of highdensity, high-performance interconnections used in digital and communication applications. These interconnections behave as lossy transmission lines for the frequency range of interest. A brief theoretical explanation of the key properties of lossy, coupled transmission lines is given. A new short-pulse propagation technique used fo...

2001
Minfen Shen Lisha Sun

Wavelet packet decomposition is used to investigate the time-varying characteristics of clinical EEG signals. On the basis of the nonstationary nature of clinical EEG rhythms, wavelet packet analysis is employed for designing filters with different frequency characteristics to detect 4 kinds of EEG rhythms. The coefficients of wavelet transformation corresponding to the rhythms are used to form...

2007
O. Nazarenko

Electrical explosion of wires (EEW) is a method for production of nanopowders. Depending on type of chemical composition of working ambient in the discharge chamber nanopowders of carbides can be produced (EEW in hydrocarbons) or nanopowders of oxides (EEW in oxygen contained medium). Phase compositions of nanopowders prepared by electrical explosion of tungsten and aluminium wires in liquid an...

Journal: :Physical therapy 1988
C L Soo D P Currier A J Threlkeld

The purpose of this study was to evaluate the ability of electrical stimulation (2,500-Hz sine waves, interrupted for 50 pulsed bursts per second) to improve muscle torque using low-dosage training characteristics. Fifteen healthy subjects (9 men, 6 women), 20 to 32 years of age, participated in the experiment. All subjects received electrical stimulation of the right anterior thigh musculature...

2017
Sora Ahn Sumin Jo Sang Beom Jun Hyang Woon Lee Seungjun Lee

In this paper, we identified factors that can affect seizure suppression via electrical stimulation by an integrative study based on experimental and computational approach. Preferentially, we analyzed the characteristics of seizure-like events (SLEs) using our previous in vitro experimental data. The results were analyzed in two groups classified according to the size of the effective region, ...

ژورنال: علوم آب و خاک 2013
حمیدرضا کریم‌زاده, , رضا جعفری, , علی خنامانی, ,

Soil characteristics are the most powerful factors in desertification phenomenon. The purpose of this study was investigating soil characteristics as indices for evaluating desertification intensity. The most important indicators of the soil that affect desertification were selected in the present study. Soil samples were taken from Segzi desert vicinity located in the east of Isfahan city with...

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