نتایج جستجو برای: static coil
تعداد نتایج: 132066 فیلتر نتایج به سال:
2014 A self contained apparatus has been described that allows both static and dynamic properties of polymers in solution to be measured by total intensity and quasi-elastic light scattering. Details of the testing and calibration have been given both as a function of scattering angle (0 = 20 ~ 140°) and temperature. The dynamic measurements are carried out on line using a PDP 11/34 minicompute...
The power system network is becoming more complex nowadays and it is very difficult to maintain the stability of the power system. The main purpose of this paper proposes a 12-pulse based Static Synchronous Series Compensator (SSSC) with and without Superconducting Magnetic Energy Storage (SMES) for enhancing the voltage stability and power oscillation damping in multi area system. Control sche...
Introduction: Nerve stimulation induced by rapidly switching magnetic field gradients poses an upper limit on the gradient strengths that can be employed in fast magnetic resonance imaging and diffusion measurements’. The likelihood of stimulation is usually assessed by evaluation of the maximum rate of change of the magnetic field, inside the gradient coi12. Nerve stimulation actually occurs a...
This study investigated the covalent cross-link at alkaline (pH 9.0) between different concentrations of anthocyanins and soybean protein isolate (SPI). The structure product was analyzed by SDS-PAGE, fluorescence spectrum, circular dichroism. In order to test effects SPI on anti-inflammatory ability anthocyanins, in vitro inflammatory cell model set RAW264.7 line. Results showed that quenching...
hepatic artery aneurysms are rare but potentially life threatening. we describe a novel case of a successful endovascular coil embolization of a huge hepatic artery aneurysm. a 67-year-old woman presented with recent abdominal pain that had begun from 2 weeks before referring to our hospital. sonographic and computerized tomographic (ct) findings revealed a huge hepatic artery aneurysm with 95 ...
Magnetization as a function of strain of a Ni48.5Mn30.8Ga20.7 single crystal during 9 MPa compressive loading test was obtained by means of vibrating coil magnetometry for different static magnetic fields up to 1.15 T. The dependency is monotonic, nonlinear and shows a small hysteresis. Maximum reversible change of magnetization is 30% for a 0.6 T field, and irreversible change of about 50% is ...
In this paper the magneto–elastic–effect is taken under further investigation, to determine the utility of the novel material Terfenol–D in force sensor applications. A measurement set–up is designed and the characteristic material parameters like magnetization diagram, butterfly diagram and the reluctance dependent on the applied mechanical load is determined. The results demonstrate that it i...
Pivot bearing friction and flex cable nonlinearity are the two major torque nonlinearities which lead to performance degradation in hard disk drive (HDD) tracking tasks. Based on a comprehensive model of typical voice-coil-motor (VCM) actuator, which explicitly captures the characteristics of pivot bearing friction and flex cable nonlinearity, this paper presents the design of a parameterized c...
In this study, the human exposure to magnetic field emitted by a wireless power transfer (WPT) system during static recharging operations of compact electric vehicle (EV) is evaluated. Specifically, influence posture realistic anatomical models, both in standing and lying positions, either inside or outside EV, considered. Aligned misaligned coil configurations WPT placed rear front position ca...
Abstract A fuzzy PID control strategy for quasi-zero stiffness (QZS) isolator which connects the pneumatic spring (PS) and electromagnetic negative mechanism (ENSM) in parallel to suppress low-frequency vibration is proposed this paper. First, restoring force of PS ENSM are derived. Secondly, static analysis isolation system carried out, analytical expressions obtained. The possibility reaching...
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