The Brushless DC (BLDC) motor is a simple robust machine which has found application over a wide power and speed of ranges in different shapes and geometry. This paper briefly reviews the fundamentals behind the motor and also the different types of BLDC motors with different geometries and then presents a new configuration for BLDC motor/generator, which does not use a permanent magnet in the ...

the output of x-ray, especially in the field of required energy for diagnosing the disease is very low (in diagnosing lamps, it is less than 1%). in this kind of lamps the rest of the electrical energy is transformed to heat. this considerable amount of heat induces a myriad of too many limitations in choosing higher levels of radiation, particularly in specialized techniques. this process is t...

1. To determine the ability of gaseous ozone to kill human pathogenic viruses, including Norovirus, in defined laboratory experimental conditions, and in situations resembling practical applications in cruise liners, hospitals and health-care facilities. 2. To determine the role of various parameters, including time and dose of ozone exposure, and relative humidity. 3. To develop an efficient, ...

background: a boron neutron capture therapy (bnct) facility, based on a dt neutron generator, with the final goal to find out a potential, alternative, solution to existing bnct treatment facilities which are based on nuclear reactors is examined. materials and methods: with the aim of the mcnp4b monte carlo code different beam-shaping assembly (bsa) configurations were considered. lead was sel...

Due to the lack of a standard nanosecond high-voltage pulse generator for sensor calibration, high-stability test system was developed in terms circuit analysis, structural design, and performance test. By establishing equivalent model generator, component parameters five-stage Marx loop one-stage compression steepening unit were simulated. The influence action gap on characteristics output ana...

The conversion of external energy into electricity is the foundation power station and harvesting operation. source supplies an impressed force per unit charge to free or bound produces AC electricity. We analyze electrodynamics ideal generators through a time dependent permanent polarization without any applied electric field, which modifies constitutive relations essential oscillate in lossle...

Center for Adaptive Systems and Department of Cognitive and Neural Systems Boston University, 111 Cummington Street, Boston, MA 02215 A neural pattern generator based upon a non-linear cooperative-competitive feedback neural network is presented. It can generate the two standard human gaits: the walk and the run. A scalar arousal or GO signal causes a bifurcation from one gait to the next. Alth...

We consider α scale spaces, a parameterized class (α ∈ (0, 1]) of scale space representations beyond the well-established Gaussian scale space, which are generated by the α-th power of the minus Laplace operator on a bounded domain using the Neumann boundary condition. The Neumann boundary condition ensures that there is no grey-value flux through the boundary. Thereby no artificial grey-values...