نتایج جستجو برای: electric field profile

تعداد نتایج: 1096623  

2007
V. A. Svidzinski S. C. Prager

Reduction of core-resonant magnetic fluctuations and improved confinement in the Madison Symmetric Torus reversed-field pinch (MST RFP) have been routinely achieved by applying the surface poloidal electric field. The created inductive poloidal electric field drives current in plasma which leads to the improved confinement. To study the effect we developed a relatively simple 1-D model in cylin...

Flash sintering is one of the newest techniques for sintering ceramics to near full density. It occurs in an appropriate combination of temperature and electric field. Temperature measurement is one of the most serious challenges in this process. In the present study, we tried to model a flash sintering process of 8YSZ and 3YSZ with finite element method to make an assessment for temperature di...

Journal: :Proceedings of the Combustion Institute 2021

The application of an electric field to a flame modifies the characteristics due collective motion charged particles generated within flame. applied mobilises electrons and ions depending on their polarity, leading localised regions space charge with sufficient density either locally amplify or shield field. A fundamental understanding local is essential for both electrically plasma-assisted co...

Journal: :The journal of physical chemistry. B 2006
C Z Fan J P Huang K W Yu

In reality, colloidal particles often possess an arbitrary inhomogeneity profile. We present a first-principles approach to dielectrophoresis of such an inhomogeneous colloidal particle under an inhomogeneous field of an oscillating electric dipole moment. For numerical simulations, we treat the inhomogeneous particle as a specific graded one with a physically motivated dielectric model and con...

Journal: :cell journal 0

the effect of external magnetic and electric fields, in the range of electroporation and magnetoporation, on lucifer yellow (ly) fluorescence in the absence of cells is studied. electric-field-induced quenching and magnetic field-induced increase are observed for fluorescence intensity of ly. regard to the fact that the variation of field-induced fluorescence, even in the absence of cells, can ...

2004
F. Ebrahimi S. C. Prager

Current profile control by ac magnetic helicity injection is computationally investigated in a reversed field pinch ~RFP!. Three-dimensional resistive magnetohydrodynamics ~MHD! computation is employed to study the nonlinear MHD. During ac helicity injection, when toroidal and poloidal surface voltages are oscillated out of phase, the parallel electric field is maintained positive over a majori...

Journal: :Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 2019

In this study, spectroscopic properties of the single-walled boron-nitride nanotube (SWBNNT) –a semiconductor channel in molecular diodes and molecular transistors–have been investigated under field-free and various applied electric fields by first principle methods.Our analysis shows that increasing the electric field in boron-nitride nanotube (BNNT) decreases the Highest Occupied Crystal Orbi...

ژورنال: مواد پرانرژی 2020

The electric initiator is an important component of the explosive train which provides requiered energy to initiate a chemical reaction by converting the electric current to the heat via a bridgewire. This initiator is widely used in the field of aerospace industry in the solid rocket propellant motors, separation systems and etc due to its low weight and high reliability. In this research, a m...

2017

Figure 1 shows the general device schematics and electric field profile of an APD device. For the top-illumination APD illustrated in Figure 1, the top layer is a heavily p-doped InGaAs layer that forms Ohmic contact with the p-metal. The next is an intrinsic In0.53Ga0.47 as absorption layer, which has a band gap energy of 0.75eV, used to absorb light [5]. To achieve lattice match to InP substr...

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