Results 71 to 80 of about 510,378 (292)

Fine details in solar flare ribbons

Astronomy & Astrophysics
Context. Flare ribbons serve as chromospheric footprints of energy deposition resulting from particle acceleration during magnetic reconnection. Their fine-scale structure provides a valuable tool for probing the dynamics of the flare reconnection ...
Thoen Faber Jonas, Joshi Reetika, Rouppe van der Voort Luc, Wedemeyer Sven, Øyre Eilif Sommer, Soler Poquet Ignasi J., Brunvoll Aline Rangøy   +6 more
doaj   +1 more source

Long-lived meteor trails

Solar-Terrestrial Physics, 2019
The paper presents data on long-lived (~20–40 min) meteor trails. We describe a group of soliton-type meteor trails expanding at transonic speeds. Radio sounding data evidences that the latter include ~7–8 min ionization trails.
Mikhalev A.V., Beletsky A.B., Vasilyev R.V., Eselevich M.V., Ivanov K.I., Komarova E.S., Podlesnyi A.V., Podlesny S.V., Syrenova T.E.   +8 more
doaj   +1 more source

An implementation plan for priorities in solar-system space physics [PDF]

The scientific objectives and implementation plans and priorities of the Space Science Board in areas of solar physics, heliospheric physics, magnetospheric physics, upper atmosphere physics, solar-terrestrial coupling, and comparative planetary studies ...
Athay, R. Grant, Baker, Daniel, Fisk, Lennard A., Fredricks, Robert W., Harvey, John W., Jokipii, Jack R., Kivelson, Margaret, Krimigis, Stamatios M., Mendillo, Michael, Nagy, Andrew F.   +9 more
core   +1 more source

Shaping Ti3C2 MXene Nanospheres for Precision Near‐Infrared Photothermal Therapy

Advanced Functional Materials, EarlyView.
In this study, we report producing spherical MXenes via fs laser fragmentation of Ti3C2 flakes in liquid medium. The nanoparticles demonstrated pronounced light absorption and high photothermal conversion efficiencies of 68% and 63% under heating with NIR‐I and NIR‐II lasers, respectively.
Julia S. Babkova, Ivan V. Zelepukin, Konstantin G. Shevchenko, Gleb V. Tikhonowski, Lyubov V. Gorelik, Anton A. Popov, Anna S. Sogomonyan, Alina Yu. Kapitannikova, Ivan S. Kazantsev, Dmitry V. Dyubo, Daria A. Panova, Daniil I. Tselikov, Anton A. Minnekhanov, Aziz B. Mirkasymov, Georgy A. Ermolaev, Alexander V. Syuy, Gleb I. Tselikov, Aleksey V. Arsenin, Andrei V. Kabashin, Kostya S. Novoselov, Sergey M. Deyev, Valentyn S. Volkov   +21 more
wiley   +1 more source

Solar Neutrinos: Status and Prospects

, 2012
We describe the current status of solar neutrino measurements and of the theory -- both neutrino physics and solar astrophysics -- employed in interpreting measurements.
Aldo M. Serenelli, Bahcall JN, Holmgren HP, Kuzmin VA, Mikheyev SP, Pontecorvo B, R.G. Hamish Robertson, Schechter J, Schechter J, W.C. Haxton   +9 more
core   +1 more source

Zwitterionic Self‐Assembled Monolayer for Simultaneous Noise Suppression and Hole Extraction in High‐Performance Near‐Infrared Organic Photodetectors

Advanced Functional Materials, EarlyView.
This study presents a new hole transporting material (HTM) mechanism for self‐assembled monolayers in near‐infrared organic photodetectors. The formation of zwitterions induces a strong electric field that significantly increases the work function of HTM‐coated indium tin oxide substrates. The devices exhibit low dark current and noise, along with high
Jiyoung Shin, Gyeong Min Lee, Juyeon Shin, Jaewoong Kim, Tae Hyuk Kim, Do Yeon Kim, Myeong In Kim, Kyeounghak Kim, Jae Won Shim, In Hwan Jung   +9 more
wiley   +1 more source

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

Advanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He, Minxian Zhang, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +5 more
wiley   +1 more source

Missing bits of the solar jigsaw puzzle: small-scale, kinetic effects in coronal studies

, 2009
The solar corona, anomalously hot outer atmosphere of the Sun, is traditionally described by magnetohydrodynamic, fluid-like approach. Here we review some recent developments when, instead, a full kinetic description is used. It is shown that some of the
Aschwanden, Aschwanden, Aschwanden, Banerjee, Benevolenskaya, Birn, Brown, Campbell, Dalla, Daughton, David Tsiklauri, De Moortel, Drake, Dreicer, Edlén, Edwin, Fletcher, Frankland, Frohlich, Goldstein, Gudiksen, Gudiksen, Hasegawa, Hesse, Hesse, Heyvaerts, Horiuchi, Ionson, Kuznetsova, Li, McClements, Nakariakov, Nakariakov, Nakariakov, Pritchett, Shay, Stasiewicz, Tsiklauri, Tsiklauri, Tsiklauri, Tsiklauri, Tsiklauri, Tsiklauri, Tsiklauri, Tsiklauri, Tsiklauri, Tsiklauri, Tsiklauri, Yamada, Zharkova   +49 more
core   +1 more source

Ultrastable Photoactive Halide Perovskite Nanocrystal‐Sensitized SnO2 Nanorods for Room‐Temperature NO2 Detection

Advanced Functional Materials, EarlyView.
ABSTRACT Metal oxide (MOx)‐based NO2 gas sensors typically require high temperatures or ultraviolet light, limiting their practical use. To enable visible‐light activation at room temperature, efficient and stable photosensitizers should be integrated with nanostructured MOx hosts.
Yeonji Yuk, Dokyum Kim, Jun‐Cheol Park, Yoonsung Jung, Inhyeok Oh, Donghyeon Lee, Yejoon Kim, Ji‐Eun Yeo, Young Min Song, Chang‐Lyoul Lee, Sanghan Lee   +10 more
wiley   +1 more source

Solar Neutrino Physics: historical evolution, present status and perspectives

, 2002
Solar neutrino physics is an exciting and difficult field of research for physicists, where astrophysics, elementary particle and nuclear physics meet. \ The Sun produces the energy that life has been using on Earth for many years, about $10^9$ y, emits ...
Miramonti, Lino, Reseghetti, Franco
core