Results 61 to 70 of about 3,067,597 (310)

Covalent Functionalization of 2D Semiconductors: A Roadmap to Advanced Electronic Devices

Advanced Functional Materials, EarlyView.
This Review presents recent advances in the covalent functionalization strategies for two‐dimensional semiconductors and their implementation in modern technologies. Layered materials are modified through diverse molecular chemistries (e.g., thiols, diazonium salts, alkyl halides, and electron‐deficient species) to tailor their surface properties ...
Ramiro Quirós‐Ovies, Bin Han, Paolo Samorì   +2 more
wiley   +1 more source

Statistical analysis of microflares as observed by the 4–8 GHz spectropolarimeter

Solar-Terrestrial Physics, 2023
Radio observations of weak events are one of the promising methods for studying energy release and non-thermal processes in the solar corona. The development of instrumental capabilities allows for radio observations of weak transient coronal events ...
Zhdanov D. A., Altyntsev A. T., Meshalkina N. S., Anfinogentov S. A.   +3 more
doaj   +1 more source

Solar-terrestrial physics: an overview

, 1989
Solar-terrestrial physics is concerned with the near-Earth space environment, that is with the solar wind, magnetosphere, ionosphere and thermosphere. It deals with this region, now often termed geospace, in both its ideal, steady-state situation and its
Rycroft, M.J.
core   +1 more source

Optimizing NiMo Electrocatalyst Coatings for Hydrogen Evolution in Alkaline Electrolysis With The Machine Learning‐Guided Autonomous Platform CatBot

Advanced Functional Materials, EarlyView.
This work presents a closed‐loop optimization workflow integrating CatBot, an automated synthesis and testing system, to discover NiMo hydrogen‐evolution catalysts. CatBot synthesised and evaluated 228 unique samples, identifying the best performing catalysts for transfer to nickel‐foam electrodes. The best candidate is highly active, reaching 1 Acm−2${
Paolo Vincenzo Freiesleben de Blasio, Jonas Elsborg, Elif Coşkun, Andreas Burger, Pradipkumar Manubhai Leuaa, Thu Pham Anh Phan, Jin Hyun Chang, Christodoulos Chatzichristodoulou   +7 more
wiley   +1 more source

New Swarm products NeGIX and TEGIX for monitoring horizontal ionospheric gradients

Journal of Space Weather and Space Climate
The detection, monitoring, and characterization of ionospheric perturbations are key areas of space weather research due to their significant impact on man-made technological systems.
Cahuasquí Juan Andrés, Hoque Mohammed Mainul, Jakowski Norbert, Buchert Stephan, Vasylyev Dmytro, Nykiel Grzegorz, David Paul, Tagargouste Youssef, Kriegel Martin, Berdermann Jens, Nielsen Klaus   +10 more
doaj   +1 more source

An Adaptive Inhibitory WSe2 Transistor for Retinomorphic In‐Sensor Image Processing

Advanced Functional Materials, EarlyView.
Conventional retinomorphic devices typically require deliberate gate‐bias tuning for each illumination condition. In this paper, we demonstrate an adaptive inhibitory WSe2 transistor that uses photo‐induced regime shift between the subthreshold and accumulation modes to achieve decision‐free, intensity‐adaptive image processing within a single pixel ...
Juhwan Baek, Junhwa Oh, Hyeonjung Kim, Minsik Park, Haein Cho, Jin Young Park, Hyeonchang Son, Taeyun Kim, Sung‐Un An, Yamin Zhang, Hyeon‐Jin Shin, Seyong Oh, Dong‐Ho Kang   +12 more
wiley   +1 more source

Processes of acceleration and transfer of electrons in a pulse circular ribbon flare

Solar-Terrestrial Physics
We discuss acceleration and transport of electrons in the circular flare SOL2024-03-25T06:37:00 of the M4.4 X-ray class, characterized by a record-short duration of hard X-ray emission pulse.
Altyntsev Alexander, Meshalkina Nataliya, Anfinogentov Sergey, Zhdanov Dmitriy, Myshyakov Ivan, Ivanov Evgeniy, Tan Chengming, Wu Zhao   +7 more
doaj   +1 more source

Observation of eruptive events with the Siberian Radioheliograph

Solar-Terrestrial Physics, 2018
We describe methods for monitoring eruption activity with the first phase of the multiwave Siberian Radioheliograph (SRH-48). We give examples of the recorded eruptive events: 1) rise of a prominence above the limb observed in the radio map sequence of ...
Fedotova A.Yu., Altyntsev A.T., Kochanov A.A., Lesovoi S.V., Meshalkina N.S.   +4 more
doaj   +1 more source

Extreme solar events [PDF]

, 2022
We trace the evolution of research on extreme solar and solar-terrestrial events from the 1859 Carrington event to the rapid development of the last twenty years.
Shibata, Kazunari, Usoskin, Ilya G., Schrijver, Carolus J., Cliver, Edward W., Kazunari Shibata, Carolus J. Schrijver, Edward W. Cliver, Ilya G. Usoskin   +7 more
core   +1 more source

Forward‐Biased Perovskite Photodiodes for In‐Sensor Optical Change Sensing

Advanced Functional Materials, EarlyView.
A forward‐biased perovskite photodiode is introduced as an in‐sensor analog preprocessing unit that uses current balancing between photocurrent and injection current to generate optical changes relative to programmable optical reference levels. The device directly converts reference‐relative optical changes into bipolar current signals, enabling sensor‐
Eungseon Yeon, Je‐Jun Lee, Somin Yun, Sangin Hahn, Chanhyeok Kim, Jinsoo Park, Jung Pyo Hong, Seong‐Jun Han, Jung Woo Kim, Jeong Hwan Lee, Subin Jeon, Youngmin Kim, Gunuk Wang, Hanul Min, Do Kyung Hwang   +14 more
wiley   +1 more source