Results 81 to 90 of about 353,818 (294)

Super active regions and production of major solar flares [PDF]

The success of imaging detectors with small fields of veiw such as HXIS or P/OF (Pinhole/Occulter Facility) depends heavily on pointing to the right place at the right time.
Bai, T.
core   +1 more source

Photothermal Macroporous Lignin Cryogels for Off‐Grid, Continuous Atmospheric Water Collection via Interlayer Heat Recovery

Advanced Functional Materials, EarlyView.
Photothermal, macroporous lignin‐based cryogels are engineered to convert sunlight into low‐grade heat. Integrated as stacked beds in a drum‐type device, a thin copper interlayer transfers waste heat between beds, enabling interlayer heat recovery and continuous solar cycling.
Jie Yan, Jiqing Lu, Tian Bai, Lin Li, Zhaoxuan Niu, Yiying Yue, Wanli Cheng, Guangping Han, Orlando J. Rojas   +8 more
wiley   +1 more source

The Origin of Helicity in Solar Active Regions

, 2004
We present calculations of helicity based on our solar dynamo model and show that the results are consistent with observational data.Comment: To appear in the Proceedings of IAU Symposium ...
Chatterjee, Piyali, Choudhuri, Arnab Rai, Nandy, Dibyendu   +2 more
core   +1 more source

Two Intermittent Eruptions of a Minifilament Triggered by a Two-step Magnetic Reconnection Within a Fan-spine Configuration

The Astrophysical Journal
Although numerous works have concentrated on minifilament eruption in complex configurations, the detailed triggering mechanism is still an open question. Using the observational data from the New Vacuum Solar Telescope and Solar Dynamics Observatory, we
Liping Yang, Zhike Xue, Jincheng Wang, Liheng Yang, Qiaoling Li, Yian Zhou, Yang Peng, Xinsheng Zhang   +7 more
doaj   +1 more source

Suppression of Photo‐Mediated Traps in Integrated Organic Photovoltaic–Photodetector Devices via N‐Type Self‐Assembly‐Driven Interfacial Engineering

Advanced Functional Materials, EarlyView.
Conventional unstable electron transport layers (ETLs) limit self‐powered organic sensors. This work resolves this by developing a n‐type self‐assembled monolayer (SAM), “3‐PAPh”. This SAM forms a chemically stable and structurally ordered interface that fundamentally suppresses defect formation.
Ohhyun Kwon, Jae Hoon Son, Tae Hyuk Kim, Gyeong Min Lee, Seunghyun Oh, Gayoung Ham, Min Jong Lee, Sang Heon Lee, Seon Joong Kim, Hyojung Cha, Han Young Woo, Jae Won Shim   +11 more
wiley   +1 more source

Subsurface Flows in and Around Active Regions with Rotating and Non-rotating Sunspots

, 2012
The temporal variation of the horizontal velocity in subsurface layers beneath three different types of active regions is studied using the technique of ring diagrams.
B.W. Hindman, C.S. Baldner, D.A. Haber, D.A. Haber, D.H. Hathaway, D.S. Brown, F. Hill, F. Hill, H.B. Snodgrass, H.M. Antia, I. González Hernández, I. González Hernández, J. Evershed, J. Javaraiah, J. Zhao, J.O. Stenflo, K. Jain, K. Jain, K. Jain, K. Jain, K. Jain, L. Gizon, M.C. López Fuentes, R. Komm, R. Komm, R. Komm, R. Komm, R. Komm, R. W. Komm, R.S. Bogart, S. Basu, S. C. Tripathy, S. Knoska, S. Min, S.C. Tripathy, S.P. Rajaguru, T. Corbard   +36 more
core   +1 more source

Heteroatom‐Engineering Promoted Co9S8 Bi‐functional Electrocatalyst for Hydrazine‐Assisted Hydrogen Production at Industrial Current Density

Advanced Functional Materials, EarlyView.
Fe and P co‐doped Co9S8 nanocorals (Fe, P‐Co9S8) are successfully synthesized by a heteroatom engineering strategy, which exhibit outstanding bifunctional electrocatalytic performance for both the hydrogen evolution reaction (HER) and hydrazine oxidation reaction (HzOR).
Yuying Meng, Chunyan Xiang, Wenbiao Zhang, Dahai Zeng, Bing Du, Bao Zhong, Yue Jiang, Damien Voiry, Qingsheng Gao   +8 more
wiley   +1 more source

Three dimensional structures of solar active regions [PDF]

Three dimensional structure of an active region is determined from observations with the Very Large Array (VLA) at 2, 6, and 20 cm. This region exhibits a single magnetic loop of length approx. 10 to the 10th power cm.
Kundu, M. R.
core   +1 more source

Direct evidence that twisted flux tube emergence creates solar active regions. [PDF]

Nat Commun, 2021
MacTaggart D, Prior C, Raphaldini B, Romano P, Guglielmino SL.   +4 more
europepmc   +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