Results 111 to 120 of about 12,501,323 (353)

A semi-empirical approach to simulating the Dst index in global MHD models of Earth’s magnetosphere

open access: yesEarth and Planetary Physics
The Dst index has been commonly used to measure the geomagnetic effectiveness of magnetic storm events for several decades. Based on Burton’s empirical Dst model and the global magneto-hydrodynamic (MHD) simulation of Earth’s magnetosphere, here we ...
JiaWen Yue   +3 more
doaj   +1 more source

Associations of solar activity and related exposures with fetal growth. [PDF]

open access: yesSci Total Environ, 2023
Wang VA   +8 more
europepmc   +1 more source

Powering Nanocrystal‐Based Heat Engines With Light‐Emitting Metasurfaces That Influence Their Temperature

open access: yesAdvanced Functional Materials, EarlyView.
Metasurfaces and other structured photonic environments can dramatically modify the absorption and/or light emission of semiconductors. However, the consequences of these changes on the temperature of the system are not well understood. The authors address this problem for colloidal nanocrystals and leverage their findings to convert light into ...
Hugo Kowalczyk   +7 more
wiley   +1 more source

Pickering‐Engineered Microparticles for Magnetically Guided Motion and Light‐Triggered Catalysis

open access: yesAdvanced Functional Materials, EarlyView.
Magnetically responsive wax microparticles stabilized by hematite cubes through the Pickering emulsification strategy are developed, showing controlled size, motion, and light‐activated catalytic activity. Annealing under a magnetic field enhances their mobility and steering.
Chiara Ferlito   +6 more
wiley   +1 more source

Predicting space climate change [PDF]

open access: yes, 2011
The recent decline in the open magnetic flux of the Sun heralds the end of the Grand Solar Maximum (GSM) that has persisted throughout the space age, during which the largest‐fluence Solar Energetic Particle (SEP) events have been rare and Galactic ...
L. Barnard   +13 more
core   +1 more source

Development of the Chinese Dual Auroral Radar Network and Preliminary Results

open access: yesSpace Weather
Led by the National Space Science Center of the Chinese Academy of Sciences, we have built a Chinese dual auroral radar network in northern China, which is called the CN‐DARN.
Jiaojiao Zhang   +9 more
doaj   +1 more source

Assimilation of ICON/MIGHTI Wind Profiles into a Coupled Thermosphere/Ionosphere Model Using Ensemble Square Root Filter

open access: yesRemote Sensing
Precise characterization of the thermospheric neutral wind is essential for comprehending the dynamic interactions within the ionosphere-thermosphere system, as evidenced by the development of models like HWM and the need for localized data.
Meng Zhang   +7 more
doaj   +1 more source

Advancing Tandem Organic Solar Cells With Ternary Acceptor Control for High‐Power Modules and Solar‐to‐Ammonia Conversion

open access: yesAdvanced Functional Materials, EarlyView.
Tandem organic solar cells with optimized ternary acceptor engineering achieved a power conversion efficiency of 15.53% and enabled a high‐voltage mini‐module (Voc 6.11 V). Integration into a bias‐free PV‐EC system further demonstrated efficient solar‐to‐ammonia (STA) conversion (97% Faradaic Efficiency, 4± 2% STA efficiency), highlighting scalable ...
Seyeong Song   +11 more
wiley   +1 more source

Innovation in the U.S. solar industry : a review of patent activity in solar photovoltaic inverters and mounting systems

open access: yes, 2013
textThis report examined patent activity in two areas of the solar photovoltaic industry — inverters and mounting systems — and suggests that market creation policies contributed to innovation within these solar supply chain component areas.
Metteauer, Maureen O’Donnell
core  

Underlying scaling relationships between solar activity and geomagnetic activity revealed by multifractal analyses

open access: yes, 2014
Free to read\ud \ud This paper identifies some scaling relationships between solar activity and geomagnetic activity. We examine the scaling properties of hourly data for two geomagnetic indices (ap and AE), two solar indices (solar X-rays Xl and solar ...
Anh, Vo   +5 more
core   +1 more source

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