Results 31 to 40 of about 676,492 (269)

Erbium:ytterbium co-doped large-core fiber laser with 297W continuous-wave output power

, 2007
We have demonstrated a high-power and high-efficiency erbium:ytterbium (Er:Yb) co-doped fiber laser that produces 297 W of continuous-wave output at 1567 nm.
Nilsson, J., Jayanta K. Sahu, Mike Lovelady, Piper, A., Johan Nilsson, David N. Payne, Yoo, S., R. Horley, Andy Piper, Payne, D.N., Lovelady, M., Christophe A. Codemard, Jeong, Y., Hickey, L.M.B., Andrew Harker, Yoonchan Jeong, Louise Hickey, Turner, P.W., Horley, R., P. W. Turner, Codemard, Christophe, Harker, A.T., Sahu, J.K., Seongwoo Yoo   +23 more
core   +1 more source

Influence of Structural Parameters on Thermal Stress and Performance of High-Temperature SiGe Thermoelectric Modules

Applied Sciences
Mechanical and thermoelectric performance of a SiGe thermoelectric module were investigated through finite element analysis. N-type and P-type SiGe thermoelectric materials were synthesized, and their mechanical and thermoelectric properties were ...
Zhenghao Liu, Heng Yan, Jing Li, Xiaoxi Chen, Hang Jing, Yingzeng Zhang, Qingpei Xiang, Mingyang Ma   +7 more
doaj   +1 more source

A New Alternate Method to Reuse Rehashed Edible Oil for the Betterment of Society - Dual Benefit Approach in Photovoltaic Modules

IEEE Access, 2021
The Photovoltaic (PV) cell converts a portion of incident irradiation of visible wavelength into electricity and the remaining into heat, thereby decreasing the electrical efficiency. Hence, it is necessary to transfer the heat generated in the module by
Prince Winston David, Karthikeyan Ganesan, Palpandian Murugesan, Pravin Murugesan, Ganesan Jeyakodi, Praveen Kumar Balachandran, Santhan Kumar Cherukuri, Thanikanti Sudhakar Babu, Hassan Haes Alhelou   +8 more
doaj   +1 more source

Maximum power point tracking for variable-speed fixed-pitch small wind turbines [PDF]

, 2009
Variable-speed, fixed-pitch wind turbines are required to optimize power output performance without the aerodynamic controls. A wind turbine generator system is operated such that the optimum points of wind rotor curve and electrical generator curve ...
Jovanovic, Milutin, Pak Sing Leung, M. Narayana, Narayana, Mahinsasa, Putrus, Ghanim, M. Jovanovic, Leung, Pak Sing, G. Putrus   +7 more
core   +1 more source

Impact of Shading on the I-V Characteristics and Power Output of Monocrystalline and Polycrystalline Solar Panels

Emitor: Jurnal Teknik Elektro
Solar panel is a tool composed of several solar cells assembled in series or parallel by utilizing the photovoltaic effect so that it can convert solar energy into electrical energy.
Andyka Lesmana, Belly Yan Dewantara, Iradiratu Diah Prahmna K.   +2 more
doaj   +1 more source

Theoretical Analysis of Solar-aided Coal-fired Power Generation System Based on Finite Time Thermodynamics

发电技术, 2019
To reveal the influence of heat transfer and heat source temperature on system performance in finite time, and the theoretical basis of solar-aided coal-fired power generation system, the relationship between output power, efficiency and cycle parameters
Rongrong ZHAI, Hongtao LIU
doaj   +1 more source

A Compact Output Power Combiner for Broadband Doherty Power Amplifiers

, 2019
A novel compact output power combiner for broadband Doherty Power Amplifiers is proposed in this paper. The proposed output power combiner avoids the use of quarter-wave impedance transformers as they are sizable and work over narrow bandwidths. Instead,
Mona Zaghloul, Ali Darwish, Ken McKnight
core   +1 more source

CMOS-Compatible Micro Photovoltaic Generator with Post-Processing Enhanced Optical Absorption

Micromachines
This work reports the design and realization of a silicon-based micro photovoltaic generator (MPG) fabricated using a standard 0.18 μm complementary metal oxide semiconductor (CMOS) technology.
Hung-Wei Chen, Chi-Yuan Lee, Ching-Liang Dai   +2 more
doaj   +1 more source

Dirt on photovoltaic modules and efficient energy generation in the Brazilian semiarid

Revista Brasileira de Engenharia Agrícola e Ambiental, 2022
A photovoltaic electrical energy system is one of the least aggressive ways to affect the environment. Factors such as dirt influence the efficiency of these systems and can have a considerable impact in low rainfall regions, such as the Brazilian ...
Tiago L. S. de Souza, Regina L. F. A. Lima, Claudemiro de Lima Júnior   +2 more
doaj   +1 more source

Prognosis of Long‐Term Continuous Renal Replacement Therapy and the Impact of Combined Continuous Intravenous Sodium Infusion Therapy

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Patients requiring long‐term continuous renal replacement therapy (CRRT) generally have poor prognoses. This study evaluated whether adding continuous intravenous sodium infusion (cIVNa) is associated with improved hemodynamics and outcomes in patients undergoing long‐term CRRT for ≥ 7 days.
Akinori Yamaguchi, Atsuyoshi Mita, Kosuke Sonoda, Makoto Harada, Koji Hashimoto, Hiroshi Imamura, Yuji Kamijo   +6 more
wiley   +1 more source