Results 141 to 150 of about 1,545,217 (255)

Numerical schemes and dissipative processes in three-dimensional modeling of post-flare loops and their EUV signatures

open access: yesFrontiers in Astronomy and Space Sciences
Solar flares release magnetic energy into the solar corona and drive the formation of hot post-flare loops, but their thermodynamic evolution depends on both the physical processes included in the model and the numerical scheme used to solve the ...
I. Izquierdo-Guzmán   +1 more
doaj   +1 more source

Martian Top of the Atmosphere 10–420 nm spectral irradiance database and forecast for solar cycle 24

open access: yes, 2016
Ultraviolet radiation from 10 to 420 nm reaching Mars Top of the Atmosphere (TOA) and surface is important in a wide variety of fields such as space exploration, climate modeling, and spacecraft design, as it has impact in the physics and chemistry of ...
Martín-Torres, Javier,   +2 more
core   +1 more source

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

open access: yesAdvanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan   +6 more
wiley   +1 more source

Defect‐Driven Charge Separation in Ba‐Doped SrTiO3: Correlating Photoelectrochemical Performance With Dye‐Selective Photocatalysis

open access: yesAdvanced Materials Interfaces, EarlyView.
Ba‐doped SrTiO3 perovskites establish a direct correlation between photoelectrochemical activity and photocatalytic performance. Optimized Ba0.5Sr0.5TiO3 exhibits enhanced charge separation, photocurrent generation, and visible‐light‐driven dye degradation through defect‐induced oxygen vacancies and lattice distortion.
Sagar A. Nikam   +6 more
wiley   +1 more source

Solar atmosphere neutrino oscillations [PDF]

open access: yes, 2007
The Sun is a source of high energy neutrinos (E > 10 GeV) produced by cosmic ray interactions in the solar atmosphere. We study the impact of three-flavor oscillations on the solar atmosphere neutrino fluxes observable at Earth.
Lisi, E.   +9 more
core  

Investigation of Persistent Luminescence of Strontium Aluminate in Polymer Films for Passive Daytime Radiative Cooling Application

open access: yesAdvanced Materials Interfaces, EarlyView.
Persistent Luminescence of doped SrAl2O4:Eu2+, Dy3+ formulated in polymer matrices is a promising solution to be integrated in building envelopes for enhancing Passive Daytime Radiative Cooling. ABSTRACT Persistent Luminescent (PersL) materials have found applications in several fields; their integration into passive daytime radiative cooling systems ...
Roberto Bondi   +5 more
wiley   +1 more source

A Self‐Cleaning Solar Evaporator Based on MXene/Aramid Nanofiber Aerogels for Efficient Water Desalination

open access: yesAdvanced Materials Interfaces, EarlyView.
This study develops a self‐cleaning solar evaporator based on MXene‐coated aramid nanofiber aerogels for efficient desalination under high‐salinity conditions. The cylindrical evaporator combines strong photothermal conversion, capillary water transport, and self‐rotation triggered by salt accumulation.
Mandeep Singh   +5 more
wiley   +1 more source

MHD mode conversion of fast and slow magnetoacoustic waves in the solar corona [PDF]

open access: yes, 2010
There are three main wave types present in the Sun’s atmosphere: Alfvén waves and fast and slow magnetoacoustic waves. Alfvén waves are purely magnetic and would not exist if it was not for the Sun’s magnetic field.
McDougall-Bagnall, A. M. Dee
core  

Light‐Controlled Localized Delamination and Blistering of Azobenzene‐Containing Polymer Thin Films in an Aqueous Environment

open access: yesAdvanced Materials Interfaces, EarlyView.
When exposed to light of a defined wavelength, the photoisomerization of azobenzene chromophores leads to polymer reorientation, generating stresses that result in solvent‐facilitated localized delamination of the film from the substrate. Additionally, blisters that form spontaneously when exposed to an aqueous environment can be manipulated via ...
James Robert Benson   +4 more
wiley   +1 more source

Two‐Way Shape Memory Polymer Composite Gripper for Adaptive Robotic Applications

open access: yesAdvanced Materials Technologies, EarlyView.
A two‐way shape memory polymer (SMP) composite is developed with intrinsic shape‐changing capability driven solely by temperature, eliminating external actuation loads. Embedding the SMP in a low‐stiffness elastomeric matrix enabled reversible transformations during heating and cooling cycles.
Aamna Hameed, Kamran Ahmed Khan
wiley   +1 more source

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