Results 91 to 100 of about 24,274,927 (400)

Solar energy control system [PDF]

open access: yes, 1981
A solar energy control system for a hot air type solar energy heating system wherein thermocouples are arranged to sense the temperature of a solar collector, a space to be heated, and a top and bottom of a heat storage unit is disclosed.
Currie, J. R.
core   +1 more source

Effect of Subgrains on the Performance of Mono-Like Crystalline Silicon Solar Cells

open access: yesInternational Journal of Photoenergy, 2013
The application of Czochralski (Cz) monocrystalline silicon material in solar cells is limited by its high cost and serious light-induced degradation. The use of cast multicrystalline silicon is also hindered by its high dislocation densities and high ...
Su Zhou   +6 more
doaj   +1 more source

Energetic electrons along the high-latitude magnetopause [PDF]

open access: yesAnnales Geophysicae, 2012
A case study is presented to determine the source of the energetic electron layer frequently observed along the high-latitude magnetopause. Measurements by the Cluster spacecraft show bursts of field-aligned electrons occurring during time periods ...
B. M. Walsh   +6 more
doaj   +1 more source

Combined Solar system and rotation curve constraints on MOND [PDF]

open access: yes, 2015
The Modified Newtonian Dynamics (MOND) paradigm generically predicts that the external gravitational field in which a system is embedded can produce effects on its internal dynamics.
A. Hees   +4 more
semanticscholar   +1 more source

Harnessing Outer Space for Improved Electrocaloric Cooling

open access: yesAdvanced Functional Materials, EarlyView.
A novel radiative heat sink/source‐integrated electrocaloric (R‐iEC) system combines the electrocaloric (EC) effect with a thermally conductive radiative cooler (TCRC) to address heat dissipation limitations in EC devices. Utilizing outer space as a heat sink, the system achieves up to 240 W m−2 of heat dissipation performance, making it highly ...
Dong Hyun Seo   +8 more
wiley   +1 more source

Solar energy collection system [PDF]

open access: yes, 1979
A fixed, linear, ground-based primary reflector having an extended curved sawtooth-contoured surface covered with a metalized polymeric reflecting material, reflects solar energy to a movably supported collector that is kept at the concentrated line ...
Miller, C. G., Stephens, J. B.
core   +1 more source

Dust Coagulation in Oxygen-rich Circumstellar Outflows

open access: yesThe Astrophysical Journal, 2023
We show that the inefficient growth of SiO molecules on (SiO) _x dust grains prolongs the period of maximum dust nucleation in circumstellar outflows resulting in a several orders-of-magnitude increase in the dust density near the star.
John A. Paquette   +2 more
doaj   +1 more source

Active Thermal Field Integration for Marangoni‐Driven Salt Rejection and Water Collection

open access: yesAdvanced Functional Materials, EarlyView.
A thermal gradient fabric (TGF) evaporator with an auxiliary active thermal field can simultaneously increase evaporation rates and achieve long‐term salt rejection. The auxiliary active thermal field is well integrated with solar energy to construct moderate, extensive, and circulating Marangoni flow for salt rejection.
Can Ge   +12 more
wiley   +1 more source

Origin of compact exoplanetary systems during disk infall

open access: yesNature Communications
Exoplanetary systems that contain multiple planets on short-period orbits appear to be prevalent in the current observed exoplanetary population, yet the processes that give rise to such configurations remain poorly understood.
Raluca Rufu, Robin M. Canup
doaj   +1 more source

The ancient heritage of water ice in the solar system [PDF]

open access: yesScience, 2014
Nature or nurture for solar system ices? We know that life's favorite molecule, water, exists throughout the solar system. What we don't know is whether present water levels reflect the chemical conditions of our parent nebula or whether they result from
L. Cleeves   +6 more
semanticscholar   +1 more source

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