Results 21 to 30 of about 992,076 (345)

A Marginal Contribution Theory-Based Energy Efficiency Contribution Analysis for Integrated Energy System

Frontiers in Energy Research, 2021
The energy efficiency analysis is a prerequisite for the construction of the integrated energy system (IES). In this study, a novel energy efficiency analysis method is proposed considering different energy subsystems in the IES.
Shihai Yang, Shihai Yang, Shihai Yang, Mingming Chen, Mingming Chen, Qiang Zuo, Qiang Zuo   +6 more
doaj   +1 more source

Energy Conversion Efficiency of the Bulk Photovoltaic Effect

PRX Energy, 2023
The bulk photovoltaic effect (BPVE) leads to directed photocurrents and photovoltages in bulk materials. Unlike photovoltages in p-n junction solar cells that are limited by carrier recombination to values below the band-gap energy of the absorbing ...
Andreas Pusch, Udo Römer, Dimitrie Culcer, Nicholas J. Ekins-Daukes   +3 more
doaj   +1 more source

Parametric Four-Photon Generation of Picosecond Light at High ConversionEfficiency [PDF]

, 1975
Parametric four-photon interaction in isotropic media was studied in the saturation range. Up to 10% of input laser energy could be converted into a broad frequency spectrum ranging from the ultraviolet to the infrared.
Kaiser, W., Penzkofer, Alfons, Seilmeier, A.   +2 more
core   +1 more source

Silver/Polypyrrole-Functionalized Polyurethane Foam Embedded Phase Change Materials for Thermal Energy Harvesting

Nanomaterials, 2021
Conversion of solar energy into thermal energy stored in phase change materials (PCMs) can effectively relieve the energy dilemma and improve energy utilization efficiency.
Dongli Fan, Yuan Meng, Yuzhuo Jiang, Siyi Qian, Jie Liu, Yuzhi Xu, Dangsheng Xiong, Yufeng Cao   +7 more
doaj   +1 more source

Efficiency of Magnetic to Kinetic Energy Conversion in a Monopole Magnetosphere [PDF]

, 2009
Unconfined relativistic outflows from rotating, magnetized compact objects are often well-modeled by assuming the field geometry is approximately a split-monopole at large radii.
Alexander Tchekhovskoy, Appl, Barkov, Begelman, Beskin, Beskin, Blandford, Blandford, Blandford, Bloom, Bogovalov, Camenzind, Camenzind, Camenzind, Catlett, Cheng, Chiueh, Contopoulos, Contopoulos, Fendt, Fendt, Fendt, Frail, Gammie, Giannios, Guderley, Hibschman, Hibschman, Jonathan C. McKinney, Kirk, Komissarov, Liang, Lithwick, Lovelace, Lovelace, Lyubarsky, Lyubarsky, Lyubarsky, Lyutikov, Lyutikov, MacDonald, McKinney, McKinney, McKinney, Mestel, Meszaros, Michel, Narayan, Narayan, Novikov, Okamoto, Ramesh Narayan, Rees, Shakura, Spitkovsky, Spitkovsky, Takahashi, Tomimatsu, Tsinganos, Usov, Uzdensky, Uzdensky, Uzdensky, Vlahakis, Vlahakis, Vlahakis, Zakamska, Zeh, Zenitani   +68 more
core   +1 more source

Dynamic Characteristics of Downhole Bit Load and Analysis of Conversion Efficiency of Drill String Vibration Energy

Energies, 2021
The longitudinal vibration of the drill pipe contains considerable energy which can be used to improve the rock-breaking efficiency during drilling. It is very important to the development of drilling speed-up tools to have a comprehensive understanding ...
Yuqiang Xu, Hongning Zhang, Zhichuan Guan   +2 more
doaj   +1 more source

Effect of the pitch angle and of the number of blades on depression created under impellers

MATEC Web of Conferences, 2017
This work presents a set of experiments concerning the behavior of several types of impellers regarding the depression formatted and operating in a specific range of rotations.
Băbuţanu Corina, Mândrea Lucian
doaj   +1 more source

Electrokinetic Energy Conversion Efficiency in Nanofluidic Channels

Nano Letters, 2006
We theoretically evaluate the prospect of using electrokinetic phenomena to convert hydrostatic energy to electrical power. An expression is derived for the energy conversion efficiency of a two-terminal fluidic device in terms of its linear electrokinetic response properties.
van der Heyden, F, Bonthuis, D, Stein, D, Meyer, C, Dekker, C   +4 more
openaire   +3 more sources

Per-Core DVFS with Switched-Capacitor Converters for Energy Efficiency in Manycore Processors [PDF]

, 2015
Integrating multiple power converters on-chip improves energy efficiency of manycore architectures. Switched-capacitor (SC) dc-dc converters are compatible with conventional CMOS processes, but traditional implementations suffer from limited conversion ...
Alon, E, Asanović, K, Bailey, S, Blagojević, M, Jevtić, R, Le, HP, Nikolić, B   +6 more
core   +1 more source

Nano Structuring for Efficient Energy Conversion [PDF]

ECS Meeting Abstracts, 2013
Abstract not Available.
S. F. Bent, Turgut M. Gur, Fritz B. Prinz   +2 more
openaire   +1 more source