Flashover of polluted insulators in contaminated areas is one of the most important factors influencing the operation of transmission and distribution lines and finally line outages. Therefore, it is essential to prevent and detect flashover in the insulators. Hence, utilizing the insulator status monitoring systems and predicting their functions have absorbed a lot of attention over the recent...

The inputs and clock signals combination sleep state dependent leakage current characteristics is analyzed and the optimal sleep state is examined in sub-65 nm dual Vt footed domino circuits. Simulations based on 65 and 45 nm BSIM4 models show that the conventional CHIL state (the clock signal is high and inputs are all low) is ineffective for lowering the leakage current and the conventional C...

We investigate the effect of a small leakage current through the gate insulator on the stability of organic single-crystal field-effect transistors sFETsd. We find that, irrespective of the specific organic molecule and dielectric used, leakage current flowing through the gate insulator results in an irreversible degradation of the single-crystal FET performance. This degradation occurs even wh...

We report on a measurement procedure to separate ferroelectric switching current and dielectric displacement current from the leakage current in leaky ferroelectric thin-film capacitor structures. The ac current response is determined for two adjacent frequencies. Taking advantage of the different frequency dependencies of the ferroelectric switching current, dielectric displacement current and...

In this paper, an artificial pollution test is carried out to study the leakage current of porcelain insulators. Fractal theory is adopted to extract the characteristics hidden in leakage current waveforms. Fractal dimensions of the leakage current for the security, forecast and danger zones are analyzed under four types of degrees of contamination. The mean value and the standard deviation of ...

From practical and theoretical viewpoints, performance analysis of communication systems by using information-theoretic results is important. In this paper, based on our previous work on Multiple Access Channel (MAC) and Multiple Access Relay Channel (MARC), we analyze the impact of a relay on the fundamental wireless communications concept, i.e., coverage region of MARC, as a basic model for u...

In this paper, the effect of gate tunneling current in ultra-thin gate oxide MOS devices of effective length (Le ) of 25 nm ( oxide thickness = 1 1 nm), 50 nm ( oxide thickness = 1 5 nm) and 90 nm ( oxide thickness = 2 5 nm) is studied using device simulation. Overall leakage in a stack of transistors is modeled and the opportunities for leakage reduction in the standby mode of operation are ex...

The ever-growing leakage current of MOSFETs in nanometre technologies is the major concern to high performance and power efficient designs. Dynamic power management via powergating is effective to reduce leakage power, but it introduces power-up current that affects the circuit reliability. The authors present an in-depth study on high-level modelling of power-up current and leakage current in ...

The processing speed of the brain depends on the ability of neurons to rapidly relay input changes. Previous theoretical and experimental studies of the timescale of population firing rate responses arrived at controversial conclusions, some advocating an ultrafast response scale but others arguing for an inherent disadvantage of mean encoded signals for rapid detection of the stimulus onset. H...