Results 31 to 40 of about 109,561 (153)
Gamma-Ray Polarimetry of Two X-Class Solar Flares [PDF]
Astrophys.J.638:1129-1139,2006, 2005 We have performed the first polarimetry of solar flare emission at gamma-ray energies (0.2-1 MeV). These observations were performed with the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) for two large flares: the GOES X4.8-class solar flare of 2002 July 23, and the X17-class flare of 2003 October 28.
arxiv +1 more source
Scaling laws of solar and stellar flares [PDF]
, 2007 In this study we compile for the first time comprehensive data sets of solar and stellar flare parameters, including flare peak temperatures T_p, flare peak volume emission measures EM_p, and flare durations t_f from both solar and stellar data, as well as flare length scales L from solar data.
arxiv +1 more source
Insights Into the Light‐Driven Conversion of Methane: Mechanisms, Characterization, and Perspective
EcoEnergy, EarlyView.Methane can be converted into value‐added products, offering a sustainable and economically viable approach to energy and carbon use. Photocatalytic methane conversion under mild conditions is an effective method for activating methane. This review outlines key mechanisms for C–H bond activation, categorizes products from methane conversion, and ...
Jiayi Chen +3 more
wiley +1 more source
A Magnetic Bald-Patch Flare in Solar Active Region 11117 [PDF]
, 2017 With SDO observations and a data-constrained MHD model, we identify a confined multi-ribbon flare occurred on 2010 October 25 in solar active region 11117 as a magnetic bald patch (BP) flare with strong evidences. From the photospheric magnetic field observed by SDO/HMI, we find there is indeed magnetic BPs on the PILs which match parts of the flare ...
arxiv +1 more source
Retrofitting Low Carbon Aviation Fuels Processes From Natural Gas to Renewables Energy‐Based Systems
Greenhouse Gases: Science and Technology, EarlyView.ABSTRACT The aviation sector's dependence on high‐energy‐density fuels presents a challenge for decarbonization. This study evaluates the economic and environmental feasibility of retrofitting a gas‐to‐liquid (GTL) plant for low carbon aviation fuel (LCAF) production using solar electrification, an advanced reformer unit (CARGEN), and a hybrid ...
Yasmin Abdelkarim +6 more
wiley +1 more source
MULTI-WAVELENGTH OBSERVATIONS OF A LARGE SOLAR FLARE
Odessa Astronomical Publications, 2019 We present the results of the multi- wavelength study of the two-ribbon solar flare on July 19, 2000 in the active region NOAA 9087. The evo- lution and morphological properties of the flare pro- ductive active region have been analyzed.
S N. Chornogor, N. N. Kondrashova
doaj +1 more source
Solar Flares Complex Networks [PDF]
, 2017 We investigate the characteristics of the solar flares complex network. The limited predictability, non-linearity, and self-organized criticality of the flares allow us to study systems of flares in the field of the complex systems. Both the occurrence time and the location of flares detected from January 1, 2006 to July 21, 2016 are used to design the
arxiv +1 more source
Climate and political effects on agriculture: Empirical evidence from SSA
International Studies of Economics, EarlyView.Abstract The most of Sub‐Saharan African (SSA) countries have been affected by climate change and food insecurity problems due to the reduction of production and productivity of cereal crops in the continent. The purpose of this research was to examine the short‐run and long‐run effects of climate change on agricultural productivity in 24 selected SSA ...
Defaru Adugna Feye +2 more
wiley +1 more source
Solar Flares and Coronal Mass Ejections: A Statistically Determined Flare Flux-CME Mass Correlation [PDF]
, 2010 In an effort to examine the relationship between flare flux and corresponding CME mass, we temporally and spatially correlate all X-ray flares and CMEs in the LASCO and GOES archives from 1996 to 2006. We cross-reference 6,733 CMEs having well-measured masses against 12,050 X-ray flares having position information as determined from their optical ...
arxiv +1 more source
Skin Diseases in Long‐Distance Runners
JEADV Clinical Practice, EarlyView.ABSTRACT Long‐distance running, including both road running and trail/mountain running, has significantly increased in popularity in recent years. The prolonged, repetitive physical activity combined with environmental exposures predisposes runners to a range of dermatological problems.
Henna Ahomies +3 more
wiley +1 more source