Results 31 to 40 of about 20,813,737 (316)

A Review of the High-Power All-Solid-State Single-Frequency Continuous-Wave Laser

Micromachines, 2021
High-power all-solid-state single-frequency continuous-wave (CW) lasers have been applied in basic research such as atomic physics, precision measurement, radar and laser guidance, as well as defense and military fields owing to their intrinsic ...
Weina Peng, Pixian Jin, Fengqin Li, Jing Su, Huadong Lu, Kunchi Peng   +5 more
doaj   +1 more source

Thermal Performance of Two-phase Loop Thermosiyphon under Different Filling Ratios and Heat Transfer Distances [PDF]

Journal of Applied Fluid Mechanics
To address the thermal challenges of electronic chips in an energy-efficient manner, this study proposes an optimized two-phase loop thermosiyphon (TPLT) system featuring a mini-channel evaporator, finned condenser, and flexible tubing.
Y. Yang, Y. Liu, Z. Yan, Z. Jiang
doaj   +1 more source

Comparison of effectiveness and safety of high-power vs. conventional-power radiofrequency ablation for treatment of atrial fibrillation

Frontiers in Cardiovascular Medicine, 2022
AimTo compare high-power (HP) vs. conventional-power (CP) radiofrequency ablation for atrial fibrillation (AF).MethodsWe retrospectively enrolled AF patients undergoing CP (30–40 W, 43 patients) or HP (50 W, 49 patients) radiofrequency ablation ...
Penghui Cui, Yunpeng Qu, Jichang Zhang, Junduo Wu, Jing Zhang, Yongfeng Shi, Bin Liu   +6 more
doaj   +1 more source

Impact of wind power on the unit commitment, operating reserves and market design [PDF]

, 2011
Paper presented at the 2011 IEEE Power and Energy Society General Meeting, San Diego, CA, 24-29 July 2011This article highlights and demonstrates the new requirements variable and partly unpredictable wind power will bring to unit commitment and power ...
Milligan, M., Lange, B., Gibescu, M., Michael Milligan, Hannele Holttinen, Lange, Bernard, Kiviluoma, K., Juha Kiviluoma, Meibom, P., Meibom, Peter, O\u27Malley, Mark, Peter Meibom, Madeleine Gibescu, Kiviluoma, Juha; id_orcid, Tuohy, Aidan, Holttinen, H., Tuohy, A., Gibescu, Madeleine, Holttinen, Hannele, O'Malley, M., Milligan, Michael R., Bernhard Lange, Kiviluoma, Juha, Aidan Tuohy, O'Malley, Mark, Mark O'Malley, Kiviluoma, J.   +26 more
core   +1 more source

Current challenges for high-power semiconductor disk lasers

, 2022
S.4-5Here we review of high-power semiconductor disk lasers including thermal management issues and new ...
Malcolm, G.P.A., Bennett, T.E., Hamilton, C.J., Dawson, M.D., Stothard, D.J.M., Hopkins, J.-M., McKnight, L.J., Kane, D.J.   +7 more
core   +1 more source

Optical Fiber for High-Power Optical Communication

Crystals, 2012
We examined optical fibers suitable for avoiding such problems as the fiber fuse phenomenon and failures at bends with a high power input. We found that the threshold power for fiber fuse propagation in photonic crystal fiber (PCF) and hole-assisted ...
Kenji Kurokawa
doaj   +1 more source

Novel applications for high power diode lasers

, 2012
2 S.High power diode lasers are getting more popular not only for pumping applications but also for direct material processing. Even though laser sources like fiber lasers and disc lasers still offer comparably high beam quality, diode laser systems ...
Gronenborn, S., Traub, M., Roesner, A., Diettrich, J.   +3 more
core   +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

Modular Four-Channel 50 kW WPT System With Decoupled Coil Design for Fast EV Charging

IEEE Access, 2021
High-power wireless power transfer (WPT) is an attractive option for fast charging of electric vehicles (EVs), but the power capability of the WPT system is limited by power devices and resonant elements.
Hao Chen, Zhongnan Qian, Ruoqi Zhang, Zhuhaobo Zhang, Jiande Wu, Hao Ma, Xiangning He   +6 more
doaj   +1 more source

High-power diode-laser-bars with 19 up to 48 individually addressable emitters

, 2022
S.18-25The main challenge to address single emitters in a high-power diode-laser-bar is the thermal and electrical management to avoid crosstalking. Especially p-side up assembly leads to increasing thermal influence of neighboring emitters due to the ...
Boenig, N., Boucke, K., Roehner, M., Poprawe, R.   +3 more
core   +1 more source