Results 31 to 40 of about 26,525,554 (339)

Strong-Field QED and High Power Lasers [PDF]

, 2011
This contribution presents an overview of fundamental QED processes in the presence of an external field produced by an ultra-intense laser. The discussion focusses on the basic intensity effects on vacuum polarisation and the prospects for their ...
Heinzl, Thomas
core   +3 more sources

Recent progress in continuously tunable low-noise all-solid-state single-frequency continuous-wave laser based on intracavity locked etalon

Frontiers in Physics, 2022
All-solid-state single-frequency continuous-wave (CW) lasers have been applied in many fields of scientific research owing to their intrinsic advantages of high beam quality, low noise, narrow linewidth, and high coherence.
Pixian Jin, Pixian Jin, Jiao Wei , Jiao Wei , Jing Su , Jing Su , Huadong Lu, Huadong Lu, Kunchi Peng , Kunchi Peng    +9 more
doaj   +1 more source

Atrial Fibrillation Ablation in a Patient with Cor Triatriatum Sinister and Left Common Pulmonary Vein: Impact of Left Atrium Anatomy on Ablation Approach

Life, 2022
Atrial fibrillation is the most common presentation in adult patients with cor triatriatum sinister. The key to successful and safe catheter ablation in these patients is an accurate exploration and thorough understanding of the left atrial anatomy, both
Ioan-Alexandru Minciună, Gabriel Cismaru, Mihai Puiu, Radu Roșu, Denis Amet, Daniela Anghelina, Alexandra Gica, Raluca Tomoaia, Marius Andronache, Dana Pop   +9 more
doaj   +1 more source

Construction and operation of high power gas lasers [PDF]

, 1987
In the present paper some typical gas laser construction and their performances will be described.
Ernst, G.J., Peters, P.J.M., Witteman, W.J.   +2 more
core   +3 more sources

High current field test of impulse transient characteristics of substation grounding grid

The Journal of Engineering, 2018
It is significant to research the impulse characteristics of substation grounding grid for its optimal design and safe and stable operation. In order to obtain the impulse transient characteristics of substation grounding grid under lightning impulse ...
Xuefang Tong, Xiaohui Dong, Bo Tan
doaj   +1 more source

Energy Storage Systems: Technologies and High-Power Applications

Batteries
Energy storage systems are essential in modern energy infrastructure, addressing efficiency, power quality, and reliability challenges in DC/AC power systems.
Ahmed Aghmadi, Osama A. Mohammed
semanticscholar   +1 more source

High current and high power superconducting rectifiers [PDF]

, 1981
Results on three experimental superconducting rectifiers are reported. Two of them are 1 kA low frequency flux pumps, one thermally and magnetically switched.
Britton, R.B., Bunk, P.B., Kate, H.H.J. ten, Klundert, L.J.M. van de   +3 more
core   +2 more sources

Proposed methodology for online frequency response analysis based on magnetic coupling to detect winding deformations in transformers

High Voltage, 2019
Frequency response analysis is widely used as a method for the offline diagnosis of winding deformations in power transformers. To apply it to a working transformer, people need to determine how to inject the excitation signal and measure the response ...
Yangchun Cheng, Jiangang Bi, Jiangang Bi, Wenzhi Chang, Yuan Xu, Xiaohua Pan, Xianwei Ma, Shuai Chang   +7 more
doaj   +1 more source

High-power subnanosecond switch

Electronics Letters, 1980
A triggering mechanism, unconnected with carrier transfer effects at long distances, for power commutation of 105–106 W in the subnanosecond range, is believed to have been found from the study of the avalanche breakdown process. The switching time does not increase when the diodes are connected in series.
I.V. Grekhov, A.F. Kardo-Sysoev, L.S. Kostina, S.V. Shenderey   +3 more
openaire   +1 more source

Discrete-time deadbeat control for STATCOMs based on dq reference frame: a high-speed, tuning-free strategy for reactive current regulation

Frontiers in Energy Research
The increasing penetration of distributed generation and the evolving requirements of smart grids have heightened the demand for fast, accurate, and robust reactive power control in Static Synchronous Compensators (STATCOMs). While proportional-integral (
Haiyang Liang, A. Minfu, Yanbin Zhang, Yi Zhang, Shiguang Zhan, Yunlong Zhang, Yiwen Zhang, Zhenhua Tian   +7 more
doaj   +1 more source