نتایج جستجو برای: electric contact
تعداد نتایج: 302604 فیلتر نتایج به سال:
A fault occurs when two or more conductors come in contact with each other or ground. Ground faults are considered as one of the main problems in power systems and account for more than 80% of all faults. This paper focuses on detecting faults on electric power transmission lines. Fault detection have been achieved by using artificial neural networks.
Making an Autonomous Electric Vehicle (AEV) and able to operate “unmanned” requires extensive theoretical as well as practical knowledge. An AEV must be able to make decisions and respond to situations completely on its own. Buggy car are used a as Electric Vehicle (EV) and set up with several equipment and sensor as an AEV. A camera is installed in front of the AEV and is used to obtain image ...
A numerical computation for determination of transmission coefficient of a double quantum well triple barrier structure is carried out considering GaAs/AlxGa1-xAs material composition for finite contact barrier thickness to estimate the probability of resonance at specific energy values less than barrier potential in presence and absence of electric field using transfer matrix technique. Barrie...
We present a new approach to enhance mixing in T-type micromixers by introducing a constriction in the microchannel under periodic electro-osmotic flow. Two sinusoidal ac electric fields with 180 degrees phase difference and similar dc bias are applied at the two inlets. The out of phase ac electric field induces oscillation of fluid interface at the junction of the two inlet channels and the c...
The scanning dielectrophoresis system consists of a pair of microneedles connected to a waveform generator of arbitrary ac electric fields. Consequently, our scanning method is able to place and move the strong electric field spot between the electrode tips anywhere, just as optical tweezers have done the focus of light beam. In this paper, we demonstrate non-contact manipulations unique to our...
Railway traction model is a complex mix of electrical and mechanical parameters. Pantograph acts as an active link between the catenary and electric drive used for driving the electric loco. It collects the current from the catenary and supplies it to loco transformer for feeding to the drive. Stable current collection is one of the foremost requirements for the efficient and reliable operation...
In this paper we describe an ongoing research on augmented instruments, based on the specific case study of the electric guitar. The key question of the relationship between gesture, instrument and sound is approached via an analysis of the electric guitar’s design, playing technique and interface characteristics. The study points out some inherent defaults in the guitar’s current forms of acou...
Dynamic wetting problems are fundamental to understanding the interaction between liquids and solids. Even in a superficially simple experimental situation, such as a droplet spreading over a dry surface, the result may depend not only on the liquid properties but also strongly on the substrate-surface properties; even for macroscopically smooth surfaces, the microscopic geometrical roughness c...
A new strategy with bone tissue engineering by mesenchymal stem cell transplantation on titanium implant has been dawn attention. The surface scaffold properties of titanium surface play an important role in bone regenerative potential of cells. The surface topography and chemistry are postulated to be two major factors increasing the scaffold properties of titanium implants. This study aimed t...
Dielectrophoresis (DEP) has become a promising technique to separate and identify cells and microparticles suspended in a medium based on their size or electrical properties. Presented herein is a new technique to provide the non-uniform electric field required for DEP that does not require electrodes to contact the sample fluid. In our method, electrodes are capacitively-coupled to a fluidic c...
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