Results 1 to 10 of about 2,836,438 (300)

Review of Piezoelectric Properties and Power Output of PVDF and Copolymer-Based Piezoelectric Nanogenerators [PDF]

Nanomaterials, 2023
The highest energy conversion efficiencies are typically shown by lead-containing piezoelectric materials, but the harmful environmental impacts of lead and its toxicity limit future use.
Neelesh Bhadwal, Ridha Ben Mrad, Kamran Behdinan   +2 more
doaj   +2 more sources

Output Impedance Diffusion into Lossy Power Lines [PDF]

IEEE Transactions on Power Systems, 2017
Output impedances are inherent elements of power sources in the electrical grids. In this paper, we give an answer to the following question: What is the effect of output impedances on the inductivity of the power network?
De Persis, Claudio, Monshizadeh, Nima, Monshizadeh, Pooya, van der Schaft, Arjan   +3 more
core   +13 more sources

Survey of Wind Power Output Power Forecasting Technology [PDF]

Jisuanji kexue yu tansuo, 2022
Uncertainty and volatility of wind power generation, bring some serious challenges for the grid-connected wind power system. Prediction of wind power in advance is an important way to solve the above problems.
WU Yuhao, WANG Yongsheng, XU Hao, CHEN Zhen, ZHANG Zhe, GUAN Shijie
doaj   +1 more source

Effect of Centrifugal Force on Power Output of a Spin-Coated Poly(Vinylidene Fluoride-Trifluoroethylene)-Based Piezoelectric Nanogenerator

Energies, 2023
While poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE)) film is an excellent piezoelectric material for mechanical energy harvesting, the piezoelectric output varies considerably with the spin coating conditions.
Dong Geun Jeong, Huidrom Hemojit Singh, Mi Suk Kim, Jong Hoon Jung   +3 more
doaj   +1 more source

Power optimisation of small scale SPV array using field programmable reconfiguration topology for dynamic non-uniform illumination state

The Journal of Engineering, 2020
The power output of the solar-photovoltaic (SPV) array is affected significantly by non-uniformly incident solar radiation. Such non-uniform illumination (NUI) condition(s) occur due to shadows of terrestrial structures (like buildings, trees, etc.) or ...
Surya Prakash, Swati Rastogi, Swati Rastogi, Shaunak M. Gupte, Siddhartha P. Duttagupta   +4 more
doaj   +1 more source

Optimal Heat Exchanger Area Distribution and Low-Temperature Heat Sink Temperature for Power Optimization of an Endoreversible Space Carnot Cycle

Entropy, 2021
Using finite-time thermodynamics, a model of an endoreversible Carnot cycle for a space power plant is established in this paper. The expressions of the cycle power output and thermal efficiency are derived.
Tan Wang, Yanlin Ge, Lingen Chen, Huijun Feng, Jiuyang Yu   +4 more
doaj   +1 more source

Effects of branched chain amino acids, l-citrulline, and alpha-glycerylphosphorylcholine supplementation on exercise performance in trained cyclists: a randomized crossover trial

Journal of the International Society of Sports Nutrition, 2023
Background Nutrition plays a key role in training and athletic performance and dietary supplements can make a small, but potentially valuable, contribution to achieving peak athletic performance.
Renee Nicole Harrington
doaj   +1 more source

Validity of the Favero Assioma Duo Power Pedal System for Measuring Power Output and Cadence

Sensors, 2021
Cycling power meters enable monitoring external loads and performance changes. We aimed to determine the concurrent validity of the novel Favero Assioma Duo (FAD) pedal power meter compared with the crank-based SRM system (considered as gold standard ...
Almudena Montalvo-Pérez, Lidia B. Alejo, Pedro L. Valenzuela, Mario Castellanos, Jaime Gil-Cabrera, Eduardo Talavera, Alejandro Lucia, David Barranco-Gil   +7 more
doaj   +1 more source

A terahertz grid frequency doubler [PDF]

, 1998
We present a 144-element terahertz quasi-optical grid frequency doubler. The grid is a planar structure with bow-tie antennas as a unit cell, each loaded with a planar Schottky diode.
Alina Moussessian, David B. Rutledge, Jung-Chih Chiao, Michael C. Wanke, S. James Allen, Senior Member, Thomas W. Crowe, Yongjun Li   +7 more
core   +2 more sources

Performance Analysis and Four-Objective Optimization of an Irreversible Rectangular Cycle

Entropy, 2021
Based on the established model of the irreversible rectangular cycle in the previous literature, in this paper, finite time thermodynamics theory is applied to analyze the performance characteristics of an irreversible rectangular cycle by firstly taking
Qirui Gong, Yanlin Ge, Lingen Chen, Shuangshaung Shi, Huijun Feng   +4 more
doaj   +1 more source