Results 21 to 30 of about 1,351,325 (354)

Novel Solar driven Cooling System Integrated with Solar Still System [PDF]

open access: yesUniversity of the Future: Re-Imagining Research and Higher Education, 2020
Novel integrated solar cooling and solar distillation system is introduced to meet the high cooling and fresh water demands in hot and arid regions such as Qatar. The system is composed of a solardriven ejector cooling system coupled with a single-slope solar still.
Sleiti, Ahmad K.   +2 more
openaire   +2 more sources

Research on Multi-Scenario Variable Parameter Energy Management Strategy of Rural Community Microgrid

open access: yesApplied Sciences, 2020
Many rural communities in western China use renewable energy-based clean energy supply methods, and the community microgrid system of “photovoltaic + energy storage + electric heating” has been widely used. However, the energy management effect of such a
Lidong Guo   +3 more
doaj   +1 more source

Influence of gravity waves on the climatology of high-altitude Martian carbon dioxide ice clouds [PDF]

open access: yesAnnales Geophysicae, 2018
Carbon dioxide (CO2) ice clouds have been routinely observed in the middle atmosphere of Mars. However, there are still uncertainties concerning physical mechanisms that control their altitude, geographical, and seasonal distributions.
E. Yiğit, A. S. Medvedev, P. Hartogh
doaj   +1 more source

Extra-solar planetary systems [PDF]

open access: yesProceedings of the National Academy of Sciences, 1999
The discovery of extra-solar planets has captured the imagination and interest of the public and scientific communities alike, and for the same reasons: we are all want to know the answers to questions such as “Where do we come from?” and “Are we alone?” Throughout this century, popular culture has presumed the existence of other worlds and extra ...
J, Najita, W, Benz, A, Hatzes
openaire   +2 more sources

Astrometric solar-system anomalies [PDF]

open access: yesProceedings of the International Astronomical Union, 2009
AbstractThere are at least four unexplained anomalies connected with astrometric data. Perhaps the most disturbing is the fact that when a spacecraft on a flyby trajectory approaches the Earth within 2000 km or less, it often experiences a change in total orbital energy per unit mass.
Anderson, John D., Nieto, Michael Martin
openaire   +2 more sources

Establishment, Validation, and Application of a Comprehensive Thermal Hydraulic Model for a Parabolic Trough Solar Field

open access: yesEnergies, 2019
To better understand the thermal hydraulic characteristics of the parabolic trough solar field (PTSF), a comprehensive thermal hydraulic model (CTHM) based on a pilot plant is developed in this paper.
Linrui Ma   +3 more
doaj   +1 more source

Spectral analysis for wide energy channels [PDF]

open access: yesGeoscientific Instrumentation, Methods and Data Systems, 2013
For energetic particle measurements whose spectra follow a power law, it is often challenging to define a characteristic ("effective") energy of an energy channel.
E. A. Kronberg, P. W. Daly
doaj   +1 more source

Research on Equalization Strategy Based on Credibility Factor Inference for Lithium-Ion Battery Packs

open access: yesIEEE Access, 2022
In this paper, a two-stage equalization topology based on Zero-Voltage Switching Quasi-Resonant Converter (ZVS QRC) is proposed to solve the problems of long equalization time and low energy utilization of series lithium-ion battery packs.
Li Liao   +5 more
doaj   +1 more source

The formation of the solar system

open access: yes, 2015
The solar system started to form about 4.56 Gyr ago and despite the long intervening time span, there still exist several clues about its formation. The three major sources for this information are meteorites, the present solar system structure and the ...
Davies, M. B.   +9 more
core   +3 more sources

Performance study of a novel solar solid dehumidification/regeneration bed for use in buildings air conditioning systems [PDF]

open access: yes, 2017
In this paper, a novel solar solid dehumidification/regeneration bed has been proposed, and its three regeneration methods, i.e., simulated solar radiation regeneration, microwave regeneration, and combined regeneration of the microwave and simulated ...
Ding, Zezhi   +5 more
core   +2 more sources

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