Results 31 to 40 of about 992,076 (345)

Hydrodynamic Analysis of 3-SPS Wave Energy Conversion Device [PDF]

E3S Web of Conferences, 2021
Wave energy has the advantages of high energy density, renewability, and wide distribution, and has been highly valued by many coastal countries.
Ji Zhifei, Yuan Xiaodong, Lin Min, Fan Jianyu   +3 more
doaj   +1 more source

Efficient photosynthesis of carbon monoxide from CO2 using perovskite photovoltaics [PDF]

, 2015
Artificial photosynthesis, mimicking nature in its efforts to store solar energy, has received considerable attention from the research community. Most of these attempts target the production of H2 as a fuel and our group recently demonstrated solar-to ...
Abate, A, Curvat, L, Giordano, F, Grätzel, M, Luo, J, Mayer, MT, Schreier, M, Steier, L, Zakeeruddin, SM   +8 more
core   +1 more source

A Watt-Level, High-Quality LG_0,±1 Vortex Beam made from a Nd:YVO₄ Laser Pumped by an Annular Beam

Photonics
In this work, we demonstrate a Watt-level, high-quality Laguerre–Gaussian (LG) LG0±1 vortex mode directly output from an end-pumped Nd:YVO4 laser by using an axicon-based annular pump beam.
Minghao Guo, Xin Tao, Yueqing Li, Shirui Zhang, Zhenkun Wu, Yuzong Gu, Peng Li   +6 more
doaj   +1 more source

Efficiency of Energy Conversion in Thermoelectric Nanojunctions

, 2009
Using first-principles approaches, this study investigated the efficiency of energy conversion in nanojunctions, described by the thermoelectric figure of merit $ZT$. We obtained the qualitative and quantitative descriptions for the dependence of $ZT$ on
Baheti K., Beebe J. M., Chen Y. C., Chen Y. C., Chen Y. C., Cuevas J. C., Di Ventra M., Dubi Y., Finch C. M., Galperin M., Kaun C. C., Ke S. H., Kobayashi N., Lang N. D., Lang N. D., Liu Y. S., Ludoph B., Ma C. L., Malen J. A., Markussen T., Patton K. R., Paulsson M., Pauly F., Reddy P., Smit R. H. M., Tao N. J., Thygesen K. S., Wang B., Wang W., Wold D. J., Yang Z., Zhao J., Zheng X.   +32 more
core   +1 more source

Flexibility provision by virtual power line and soft open point in AC/DC distribution systems

International Journal of Electrical Power & Energy Systems
The increasing penetration of photovoltaic generation will significantly challenge the voltage quality, power flow, power losses in active distribution networks.
Xiaodong Yang, Wentao Jiang, Jing Ma, Da Xu, Chengjia Zhang, Yue Yang, Zhicheng Xu   +6 more
doaj   +1 more source

In-sensor neural network for high energy efficiency analog-to-information conversion

Scientific Reports, 2022
This work presents an on-chip analog-to-information conversion technique that utilizes analog hyper-dimensional computing based on reservoir-computing paradigm to process electrocardiograph (ECG) signals locally in-sensor and reduce radio frequency ...
Sudarsan Sadasivuni, Sumukh Prashant Bhanushali, Imon Banerjee, Arindam Sanyal   +3 more
doaj   +1 more source

An Agricultural Biogas Plant as a Thermodynamic System: A Study of Efficiency in the Transformation from Primary to Secondary Energy

Energies, 2023
Using a wide range of organic substrates in the methane fermentation process enables efficient biogas production. Nonetheless, in many cases, the efficiency of electricity generation in biogas plant cogeneration systems is much lower than expected, close
Krzysztof Pilarski, Agnieszka A. Pilarska, Alicja Kolasa-Więcek, Dariusz Suszanowicz   +3 more
doaj   +1 more source

Vector Vortex Beams: Theory, Generation, and Detection of Laguerre–Gaussian and Bessel–Gaussian Types

Photonics
A vector vortex beam (VVB) combines the phase singularity of a vortex beam (VB) with the anisotropic polarization of a vector beam, enabling the transmission of complex optical information and offering broad application prospects in optical sensing, high-
Xin Yan, Xin Tao, Minghao Guo, Chunliang Zhou, Jingzhao Chen, Guanyu Shang, Peng Li   +6 more
doaj   +1 more source

Achieving 87% of Theoretical Output Charge Density by Optimizing Charge Behaviors in Polydimethylsiloxane/CaCu3Ti4O12-Based Triboelectric Nanogenerators

Research
Triboelectric charge behaviors, including the generation, storage, and dissipation, play a pivotal role in determining the output charge density of triboelectric nanogenerators (TENGs). While numerous factors influence these behaviors, prior research has
Jinyang Liu, Zhongkun Wang, Shuo Wang, Yuanzheng Zhang, Weikun Li, Song Zhao, Dongyang Li, Yonghui Wu, Hengyu Guo, Haiwu Zheng   +9 more
doaj   +1 more source

Synergizing Photo-Thermal H2 and Photovoltaics into a Concentrated Sunlight Use

iScience, 2020
Summary: Solar hydrogen and electricity are promising high energy-density renewable sources. Although photochemistry or photovoltaics are attractive routes, special challenge arises in sunlight conversion efficiency.
Sanli Tang, Xueli Xing, Wei Yu, Jie Sun, Yimin Xuan, Lu Wang, Yangfan Xu, Hui Hong, Hongguang Jin   +8 more
doaj   +1 more source