Influence of core property on multi-electron process in slow collisions of isocharged sequence ions with neon

Lu, Rengui; Yu, Deshui; Shao, Changliang; Ruan, Fangming; X, Cai

doi:10.1088/1674-1056/19/11/115202

Chinese Phys. B

2010

DOI: 10.1088/1674-1056/19/11/115202

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Influence of core property on multi-electron process in slow collisions of isocharged sequence ions with neon

Rengui Lu

Deshui Yu

Changliang Shao

et al.

Abstract: Influence of core property on multi-electron process in slow collisions of isocharged sequence ions with neon * Lu Rong-Chun(卢荣春) a)b) , Yu De-Yang(于得洋) a) † , Shao Cao-Jie(邵曹杰) a) , Ruan Fang-Fang(阮芳芳) a) , and Cai Xiao-Hong(蔡晓红) a)

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Cited by 2 publications

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Effect of shear equilibrium flow in Tokamak plasma on resistive wall modes

Li¹,

Liu²

2013

Chinese Phys. B

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A code named LARWM with non-ideal magnetohydrodynamic equations in cylindrical model is used to describe the instability in Tokamak plasma surrounded by a conducting wall with finite resistivity. We mainly take three factors related to the shear equilibrium plasma flow into consideration to study the stabilizing effect of the shear flow on the resistive wall modes (RWMs). The three factors are the velocity amplitude of flow, the shear rate of flow on plasma surface, and the inertial energy of equilibrium plasma flow. In addition, a local shear plasma flow is also calculated by the LARWM code. Consequently, it is found that the inertial energy of the shear equilibrium plasma flow has an important role in the stabilization of the RWMs.

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Effect of shear equilibrium flow in Tokamak plasma on resistive wall modes

Li¹,

Liu²

2013

Chinese Phys. B

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Noise suppression for Lamb wave signals by Tsallis mode and fractional-order differential

Xiao¹,

Chen-Long²

2014

Acta Phys. Sin.

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To suppress the noise and increase the accuracy of feature extraction for ultrasonic Lamb wave signals, we present a new method based on the Tsallis mode and the fractional-order differential in this paper. Firstly, the fractional-order differentials of the amplitude spectrum of the noisy Lamb signal at different orders are obtained by using the fractional differential theory. Then, the cubic polynomial between the peak amplitude and the derivative order, and that between the peak frequency and the derivative order are proposed based on the Tsallis mode. The characteristic parameters of the amplitude spectrum are extracted with the developed equations. Finally, the Lamb signal without the noise is restored by combining the amplitude spectrum with the phase spectrum. Simulated and experimental results show that the proposed method can improve the performance parameters such as mean square error, r, and signal-to-noise ratio. Consequently, the new method based on the Tsallis mode and the fractional-order differential has the effective noise suppression performance for Lamb wave signals.

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Influence of core property on multi-electron process in slow collisions of isocharged sequence ions with neon

Abstract: Influence of core property on multi-electron process in slow collisions of isocharged sequence ions with neon * Lu Rong-Chun(卢荣春) a)b) , Yu De-Yang(于得洋) a) † , Shao Cao-Jie(邵曹杰) a) , Ruan Fang-Fang(阮芳芳) a) , and Cai Xiao-Hong(蔡晓红) a)

Cited by 2 publications

References 44 publications

Effect of shear equilibrium flow in Tokamak plasma on resistive wall modes

Effect of shear equilibrium flow in Tokamak plasma on resistive wall modes

Noise suppression for Lamb wave signals by Tsallis mode and fractional-order differential

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