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We describe herein the construction of a glucose biosensor system that senses glucose without the use of potentiostat and harness usable electrical energy from glucose to power a digital electronic device simultaneously. This system is powered by a single enzymatic glucose biofuel cell comprising a highly dense mesh network of multi-walled carbon nanotubes and enzymes that results in the immobilization...
Downsizing the Cu signal traces in the redistribution layer is an effective approach to increasing the number of signal I/O lines and thereby greatly increasing signal processing performance between logic and memory chips in advanced fine-pitch packaging. Downsized Cu traces, however, are vulnerable to current stress, which degrades electromigration resistance. This is a serious problem in advanced...
In order to solve the safety problem about person and equipment caused by the dispersed current during the transmission tower being lightning struck, it is necessary to study the characteristics of the dispersed current. In this paper, the dispersed current model of the tower grounding device is established in COMSOL. The distribution of the dispersed current around the tower is discussed, and the...
Internal combustion engine start processes in Hybrid Electric Vehicles (HEVs) are accompanied by large currents in the windings of electrical machines. It can lead to insulation overheating and fault operation mode. Induction squirrel-cage machine is one of the best AC machines for HEVs. The high efficiency of HEV induction machine with compact stator winding form is proposed. Its stator electrical...
The dual-channel SiC MESFET is ameliorated for application in high power fields. The current density and breakdown performance are simulated by using ISE-TCAD. The maximum saturation current density and breakdown voltage are about 420 pA/pm and 155 V, respectively, which are larger than those of the dual-channel 4H-SiC MESFET, 270 pA/pm and 141 V. The resultant maximum output power density is 7.4...
This paper provides an overview of our recent progresses in theory, design, simulation, and fabrication of novel metamaterial based spatial harmonic magnetrons. The approximate analysis which provides the guidelines for the design and predicts the important characteristics of these devices will be presented. This analysis shows that the metamaterial loaded SHMs can start generating power with very...
The process of current collection of the sliding electrical contact of pantograph-catenary system is accompanied by friction and wear. The friction and wear have great influence on the reliability of the electronic connection of pantograph-catenary system. The friction is the main influencing factor of the friction and wear. In this paper, the electronic connection state of pantograph-catenary system...
Due to the harmonics produced by inverter supply, the distribution characteristics of rotor copper and iron losses become more complicated in the inverter-fed induction motor (IFIM). To study the distribution characteristics of rotor copper and iron losses of the IFIM, we propose a new method to identify the harmonics of current density in the rotor bar and flux density in the rotor core using one...
This paper proposes a four-phase mutually coupled switched reluctance machine (MCSRM) arrangement with single pulse current control strategy, targeting performance improvements of both the machine and the power converter. Previously published works on MCSRM have focused only on machine performance while neglecting the power converters. Designs and comparative studies have been carried out among conventional...
In this paper, a separation test method for eliminating the effects of different current densities on the bond wires is proposed. The separation test method makes it possible to study the effect of different current density on the fatigue damage of bond wires without changing the temperature swing and average temperature during the test. By analyzing the output characteristics of the linear region...
The movable contact of conventional air circuit breaker (ACB) includes multiple parallel contacts. The arc motion process directly affects the breaker capacity of ACB. Therefore, it is important to study the arc motion process of multiple parallel contacts model. A three-dimensional (3D) magneto-hydro-dynamic (MHD) model of air arc plasma is built to investigate the arc motion process. The anode of...
An important part of the electric vehicle is the electric power supply. Several types of sources are known, one of which is the Fuel Cell (FC). Its applications range from rockets to household applications. More recently it was suggested that interconnecting the car provided with FC with the home network or even with the power distribution system might solve their recharging problem. On the other...
This paper explores the magnetic inverse problem of reconstructing the current density distribution in low-voltage circuit breakers by inverting its magnetic field. The focus is on the modeling and solution phase for the stationary configuration where the effect of magnetization in splitters is considered. A new reconstruction procedure is proposed in this paper by taking the magnetization as a mapping...
A three-dimensional MnCo2S4@NiCo(OH)2 (MCS@NCOH) core-shell nanostructure is grown on nickel foam by a simple and facile method which includes a hydrothermal treatment and an electrochemical deposition. The MnCo2S4 (MCS) nanorod arrays not only show excellent electrochemical performance by themselves, but also use as effective scaffolds to load additional active materials for enhancing the capacitance...
There are many publications that emphasize the advantages of C- and E-Core Flux-Switching-PM-Machines, which apply less magnet material than the conventional Flux-Switching-PM-Machine. However, most researches only focus on low-power applications beneath 1 kW. This paper investigates the performance of Flux-Switching-PM-Machines in a speed range between 1000 min−1 and 3000 min−1 at a 300 W and at...
The research results of a plasma accelerator which includes a cross electromagnetic field and open walls were considered. For this system, theoretical calculations for the dynamics of ions and electrons were conducted. It was established that a one-dimensional hydrodynamic model, according to the principles of equipotentialization of field lines, well describes experimental data. It was shown that...
Conventional Extended gate STI based LDMOS devices often have an overlap between gate and STI resulting in higher impact ionization at the STI left edge. In this work, we have proposed and analyzed a novel split gate architecture to reduce impact ionization and improve off-state breakdown voltage. The underlying physics behind the improved characteristics of the proposed architecture is explained...
We report on the gate misalignment induced asymmetry to enhance the impact ionization in Germanium (Ge) Junctionless (JL) devices by localizing the carrier depletion to a narrow region of the semiconductor film. Results show that misaligned Ge JL MOSFET can exhibit higher values of impact ionization power per unit volume which leads to a sharp current transition with nearly an ideal Subthreshold swing...
The objective of this paper is to determine the radial distribution of the anode current in the high current vacuum arcs under the axial magnetic field(AMF). Based on the specially experimental geometry of a split anode and a butt-type cathode, the currents of the every four divided areas at the anode were measured. In this experiment, four types of the split anode contacts were selected, with the...
A rotary interruption technology is expected to significantly promote the breaking performance of high voltage switchgear. When the technology is introduced into a fault current interruption, arc plasma is driven to mitigate the erosion pattern of contact surface. However, there still remains little understanding on the arcing behaviors between a pair of rotating electrodes. In this paper, it presents...
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