Results 1 to 10 of about 1,486,900 (338)

PULSED POWER TO MICROWAVES CONVERSION IN NONLINEAR TRANSMISSION LINES [PDF]

Radio Physics and Radio Astronomy, 2021
Purpose: Experimental results and numerical simulations are presented, concerning effects of microwave generation in coaxial transmission lines which are fed with unipolar, high voltage electric pulses.
S. Y. Karelin, V. G. Korenev, V. B. Krasovitsky, A. N. Lebedenko, I. I. Magda, V. S. Mukhin, V. G. Sinitsin, N. V. Volovenko   +7 more
doaj   +1 more source

The cryogenic control system of BEPCII

EPJ Techniques and Instrumentation, 2021
The BEPCII project is for upgrading the Beijing Electron Positron Collider to reach a higher luminosity. The cryogenic system has been firstly designed and deployed in BEPCII, which provides cooling capacity for SRF cavities, SCQ and SSM.
Gang Li, Rui Ye, Mingjing Sang, Shaopeng Li, Zhuo Zhang, Jiehao Zhang, Ruixiong Han, Ge Lei, Rui Ge   +8 more
doaj   +1 more source

Critical appraisal of the European Union Scientific Committee on Health, Environmental and Emerging Risks (SCHEER) Preliminary Opinion on electronic cigarettes

Harm Reduction Journal, 2021
Background In preparation for the 2021 revision of the European Union Tobacco Products Directive, the Scientific Committee on Health, Environmental and Emerging Risks (SCHEER) has posted its Preliminary Opinion on Electronic Cigarettes.
Renée O’Leary, Riccardo Polosa, Giovanni Li Volti, the Center of Excellence for the Acceleration of Harm Reduction (CoEHAR)   +3 more
doaj   +1 more source

New measurements of 92Mo(γ, n) and (γ, 3n) reactions using laser-driven bremsstrahlung γ-ray

Frontiers in Physics, 2023
The flux-weighted average cross sections and isomeric ratios of 92Mo(γ, n)91m,gMo and 92Mo(γ, 3n)89Mo reactions were measured through activation methods.
D. Wu, D. Wu, H. Y. Lan, H. Y. Lan, J. Y. Zhang, J. Y. Zhang, J. X. Liu, J. X. Liu, H. G. Lu, H. G. Lu, J. F. Lv, J. F. Lv, X. Z. Wu, X. Z. Wu, H. Zhang, H. Zhang, J. Cai, J. Cai, X. L. Xu, X. L. Xu, Y. X. Geng, Y. X. Geng, W. J. Ma, W. J. Ma, C. Lin, C. Lin, Y. Y. Zhao, Y. Y. Zhao, H. R. Wang, F. L. Liu, C. Y. He, J. Q. Yu, B. Guo, N. Y. Wang, X. Q. Yan, X. Q. Yan   +35 more
doaj   +1 more source

Study on Internal Strain Distribution of the High-Field Nb₃Sn Superconducting Accelerator Magnets With Homogenization Theory

IEEE Access, 2022
To fabricate 10–16 Tesla high-field accelerator magnets, the high-Jc Nb3Sn superconductor is one of the most practical choices. However, it is a brittle material and is strain-sensitive.
Zhen Zhang, Qingjin Xu
doaj   +1 more source

FDTD ANALYSIS OF NONLINEAR MAGNETIZED FERRITES: APPLICATION TO MODELING OF OSCILLATION FORMING IN COAXIAL LINE WITH FERRITE [PDF]

Радиофизика и электроника, 2017
In recent years, the high-voltage pulse devices using nonlinear properties of ferrite have received more attention. For the analysis of this kind of objects, the 2D numerical modeling technology of nonlinear saturated ferrites by FDTD method has been ...
S. Yu. Karelin
doaj   +1 more source

Measurements of plasma density profile evolutions with a channel-guided laser

High Power Laser Science and Engineering, 2023
The discharged capillary plasma channel has been extensively studied as a high-gradient particle acceleration and transmission medium. A novel measurement method of plasma channel density profiles has been employed, where the role of plasma channels ...
Tong Yang, Zhen Guo, Yang Yan, Minjian Wu, Yadong Xia, Qiangyou He, Hao Cheng, Yuze Li, Yanlv Fang, Yanying Zhao, Xueqing Yan, Chen Lin   +11 more
doaj   +1 more source

Identifying spin bias of nonsignificant findings in biomedical studies

BMC Research Notes, 2023
Objective The purpose of this research note is to share a technique for the identification of spin bias that we developed as part of a living systematic review on the cardiovascular testing of e-cigarette substitution for cigarette smoking.
Renée O’Leary, Giusy Rita Maria La Rosa, Robin Vernooij, Riccardo Polosa   +3 more
doaj   +1 more source

2.3 J, 25 Hz Nd:YAG/sapphire composite powerchip amplifier operating at room temperature [PDF]

EPJ Web of Conferences
We demonstrate a sub-nanosecond Joule-class room-temperature diode-pumped solid-state chip laser comprising of periodically bonded Nd:YAG and sapphire crystal plates and operating at 25 Hz, delivering the peak power over 3 GW.
Kausas Arvydas, Yahia Vincent, Odaka Hideho, Yoshida Mitsuhiro, Taira Takunori   +4 more
doaj   +1 more source

Discussion on Rayleigh equation obtained for a Hall thruster plasma with dust

Journal of Theoretical and Applied Physics, 2018
The present study focuses on the Rayleigh equation derived in the case of a Hall thruster plasma having dust contamination, produced near the exit of the channel due to the finite divergence of the accelerated ions and the sputtering of the walls. In the
Jasvendra Tyagi, Dimple Sharma, Hitendra K. Malik   +2 more
doaj   +1 more source