The electric-quadrupole coupling constant of the ground states of the proton drip line nucleus 20Na(Iπ = 2+, T1/2 = 447.9 ms) and the neutron-deficient nucleus 21Na(Iπ = 3/2+, T1/2 = 22.49 s) in a hexagonal ZnO single crystal were precisely measured to be |eqQ/h| = 690 ± 12 kHz and 939 ± 14 kHz, respectively, using the multi-frequency β-ray detecting nuclear magnetic resonance technique under p...

We investigate the electrodynamics of an outer gap in the meridional plane of the aligned-rotator. The charge depletion from the Goldreich-Julian charge density causes a large electric field along the magnetic field line. The electrons or the positrons are accelerated by the field-aligned electric field and radiate the γ-rays tangentially to the local magnetic field line. Some of such γ-rays co...

Precision guidance and control of an autonomous, wingsailed catamaran has been demonstrated by Harbor Wing Technologies’ X-1. Based closely on the Atlantis project, the X-1 is larger, more capable version. The platform is a modified Stiletto, a 9.1 m (30 ft) catamaran, experimentally capable of navigating along straight line segments between GPS waypoints and achieving line tracking with averag...

Although there is no certain known mechanism of how the electromagnetic fields (EMFs) at power frequency (50/60 Hz) can affect human health, it has been epidemiologically shown that they have many hazards on human health. Also the power frequency fields may interfere with the nearby electrical and electronic equipment. In response to the precautionary principle, it might be needed in some situa...

many studies have been done on hybrid vehicles in the past few years. the full hybrid vehicles need a large number of batteries creating up to 300 (v) to meet the required voltage of electric motor. the size and weight of the batteries cause some problems. this research investigates the mild hybrid vehicle. this vehicle includes a small electric motor and a high power internal combustion engine...

Here we show the design and implementation of a microfabricated platform for screening the effects of electric fields on mammalian cells. Specifically, we have screened for electric field conditions that are commonly used in the manipulation of cells using dielectrophoresis. To assay the physiological state of the cells, we constructed and cloned a stress-reporting cell line. Results obtained w...

The expected high penetration of battery chargers for electric vehicles (EV) in electric networks is foreseen as a potential problem for power quality. Battery chargers are nonlinear devices that inject harmonic currents and pollute network voltages. Thus, their harmonic emissions must be analyzed and reduced by harmonic mitigation techniques to avoid future problems. This paper analyzes and re...

In most power system studies, a major part of the problem is the finding of the voltages needed to meet a given schedule of loads and generation. Until now, iteration methods have been used to calculate the respective load flows. This paper presents a study to compare Newton method and sparse matrices with artificial neural networks regarding a load flow problem in electric distribution lines. ...

In a recent article Mr. Leigh Page' has generalized the electromagnetic equations by introducing the idea of a rotation of the field round a moving electric pole. A line of electric force is supposed to be the locus of points traveling with constant velocity, c, in directions which vary according to a law giving rise to three differential equations of type dl k d= c(f + vr wq) m(c2r gu + fv) + ...