in order to restrain the potential of wind energy, the first step is to determine the wind energy potential. in this study the wind data was used from the three-hour frequency recording of 10-year period (2002-2011). to predict the occurrence probability of each wind speed, the two-parameter weibull function was used. the goodness of fit test by chi-square test showed that the wind speed distri...

We present a comparison between the di€erent methods reported in the literature to experimentally determine the electron mobility in the channel of a MOSFET. In order to accurately obtain the mobility for use in an I±V model a suitable determination of inversion charge and electric potential is shown to be relevant. Numerical simulation is demonstrated to be a powerful tool to carry out mobilit...

Electromyography is the recording and analysis of the electrical potentials of the muscle. Man has always been curious to know about his body and the surroundings. This led the mankind through many path breaking inventions that made human life easy. Much research has been done and documented in the field of bioelectricity which led to the present day electrodiagnostic procedures. .EMG as a diag...

[1] We present University of Michigan MHD code results of the ‘‘metrics challenge.’’ We have simulated the magnetospheric and ionospheric configuration during the 16–17 April 1999 CME, the 10–11 December 1998 time period, and the 5–6 November 1998 time period. The simulation results were compared to the DMSP cross-track velocities, and the RMS differences were examined. We have found that the c...

Utilizing the integral expression of Coulomb’s Law to determine the electric potential from a continuous charge distribution is a canonical exercise in Electricity and Magnetism (E&M). In this study, we use both think-aloud interviews and responses to traditional exam questions to investigate student difficulties with this topic at the upperdivision level. Leveraging a theoretical framework for...

Advanced meditators occasionally report experiences of timelessness, or states of awareness that seem to transcend the usual boundaries of the subjective present. This type of experience was investigated in eight experienced meditators and eight matched controls by measuring 32 channels of EEG before, during, and after exposure to unpredictable light and sound stimuli. The experiment postulated...

T HE CHARACTERISTICS of the electrocardiographic tracing are determined by three independent variables. The first of these involves the potentials generated by the myocardium during depolarization and repolarization. These potentials can be altered by a wide variety of physiologic states, as well as by intrinsic disease of the myocardium. The second factor relates to the properties of the extra...

Interdigitated microelectrodes have found wide applications in manipulating and/or separating biological particles due to their simple structure and easy implementation. Particle behaviors in such interdigitated microelectrode devices are affected by a number of factors, including particle size, electrical potential, chamber geometry and dielectric properties. This paper presents systematical s...

We use scanning photocurrent microscopy (SPCM) to investigate the properties of internal p-n junctions in ambipolar carbon nanotube (CNT) transistors. Our SPCM images show strong signals near metal contacts whose polarity and positions change depending on the gate bias. SPCM images analyzed in conjunction with the overall conductance also indicate the existence and gate-dependent evolution of i...

The theoretical and computational study of the electromagnetic forward and inverse problems in ellipsoidal geometry is important in electrogastrography because the geometry of the human stomach can be well approximated using this idealized body. Moreover, the anisotropies inherent to this organ can be highlighted by the characteristics of the electric potential associated with current dipoles i...