Results 71 to 80 of about 327,954 (318)

Polarization of decayless kink oscillations in a 3D MHD coronal loop model

open access: yesAstronomy & Astrophysics
Decayless kink oscillations are frequently observed in solar coronal loops and are considered potential contributors to coronal heating. Despite the ubiquity of this wave phenomenon, its driving mechanism remains unclear.
Mandal Sudip, Breu Cosima, Peter Hardi
doaj   +1 more source

Motions of the Solar System

open access: yesScience, 1888
Mode of access: Internet.
openaire   +2 more sources

Designing photovolaic/thermal solar collectors for building integration

open access: yes, 2008
With concern growing over the environment and resource use, there has been greater emphasis placed on sustainability, particularly in the built environment.
Carson, James K.   +2 more
core  

Plasmonic Enhancement of Fluorescence and Protein Dynamics in Living Mammalian Cells

open access: yesAdvanced Materials, EarlyView.
This study demonstrates plasmonic enhancement of the function of fluorescent voltage sensing proteins (genetically encoded voltage indicators, (GEVIs), QuasAr6) in live mammalian cells. Coupling to plasmonic nanoparticles does not just increase fluorescence, but influences the protein photocycle, creating a hybrid sensor with its response speed to ...
Marco Locarno   +16 more
wiley   +1 more source

Spiro‐Phenothiazine Hole‐Transporting Materials: Unlocking Stability and Scalability in Perovskite Solar Cells

open access: yesAdvanced Materials, EarlyView.
Fluorene‐functionalized spiro‐phenothiazine (PTZ‐Fl) exhibits strong Li+ affinity and thermal stability, enabling a PCE of 25.75% in small‐area cells and 22.07% in 25 cm2 modules. Under ISOS‐L3 conditions, PTZ‐Flbased devices retain over 80% efficiency after 1000 hours, demonstrating superior stability and scalability compared to spiro‐OMeTAD for next ...
Javier Urieta‐Mora   +17 more
wiley   +1 more source

Understanding the secular variability of solar irradiance: the potential of Ca II K observations

open access: yesJournal of Space Weather and Space Climate
With the increasing concern about climate change, it is important to have accurate information on the individual contributions by the potential driving agents, solar variability being one of them.
Chatzistergos Theodosios   +2 more
doaj   +1 more source

Solar sail capture trajectories at Mercury

open access: yes, 2002
Mercury is an ideal environment for future planetary exploration by solar sail since it has proved difficult to reach with conventional propulsion and hence remains largely unexplored.
Macdonald, Malcolm   +5 more
core   +1 more source

Stepwise On‐Surface Synthesis and Transformations of Two‐Dimensional Covalent Organic Frameworks by Controlled Thermal Stimuli

open access: yesAdvanced Materials, EarlyView.
The seminal transformation of a 2D‐COF (SURFCOF‐IMDEA1) into a 2D porous COF (SURFCOF‐IMDEA2) on Au(111) by a sequential C‐C coupling and ladderization triggered by thermal annealing steps at increasing temperatures is reported. Abstract The development of covalent organic frameworks (COFs) is currently a primary objective in materials science, taking ...
Ana Barragán   +11 more
wiley   +1 more source

Atmospheric Electrification in the Solar System [PDF]

open access: yesSurveys in Geophysics, 2006
Atmospheric electrification is not a purely terrestrial phenomenon: all Solar System planetary atmospheres become slightly electrified by cosmic ray ionisation. There is evidence for lightning on Jupiter, Saturn, Uranus and Neptune, and it appears likely to exist on Mars, Venus and Titan.
openaire   +3 more sources

Solar Cooling System Using Solar-Driven Hybrid Chiller

open access: yes, 2012
We developed an appropriate Absorption chiller to Solar cooling system in 2010. In addition, we added the improvement to the machine. Solar cooling system can be easily constructed with the machine.
Hirai, Akira
core  

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