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  1. No Access

    Article

    Super-Resolution of SOHO/MDI Magnetograms of Solar Active Regions Using SDO/HMI Data and an Attention-Aided Convolutional Neural Network

    Image super-resolution is an important subject in image processing and recognition. Here, we present an attention-aided convolutional neural network for solar image super-resolution. Our method, named SolarCNN...

    Chunhui Xu, Jason T. L. Wang, Haimin Wang, Haodi Jiang, Qin Li in Solar Physics (2024)

  2. No Access

    Article

    A transformer-based framework for predicting geomagnetic indices with uncertainty quantification

    Geomagnetic activities have a crucial impact on Earth, which can affect spacecraft and electrical power grids. Geospace scientists use a geomagnetic index, called the Kp index, to describe the overall level of...

    Yasser Abduallah, Jason T. L. Wang in Journal of Intelligent Information Systems (2023)

  3. Article

    Open Access

    Operational prediction of solar flares using a transformer-based framework

    Solar flares are explosions on the Sun. They happen when energy stored in magnetic fields around solar active regions (ARs) is suddenly released. Solar flares and accompanied coronal mass ejections are sources...

    Yasser Abduallah, Jason T. L. Wang, Haimin Wang, Yan Xu in Scientific Reports (2023)

  4. No Access

    Article

    Generating Photospheric Vector Magnetograms of Solar Active Regions for SOHO/MDI Using SDO/HMI and BBSO Data with Deep Learning

    Solar activity is often caused by the evolution of solar magnetic fields. Magnetic field parameters derived from photospheric vector magnetograms of solar active regions (ARs) have been used to analyze and for...

    Haodi Jiang, Qin Li, Nian Liu, Zhihang Hu, Yasser Abduallah, Ju **g in Solar Physics (2023)

  5. Article

    Open Access

    Study of Global Photospheric and Chromospheric Flows Using Local Correlation Tracking and Machine Learning Methods I: Methodology and Uncertainty Estimates

    Cyclical variations of the solar magnetic fields, and hence the level of solar activity, are among the top interests of space weather research. Surface flows in global-scale, in particular differential rotatio...

    Qin Li, Yan Xu, Meetu Verma, Carsten Denker, Junwei Zhao, Haimin Wang in Solar Physics (2023)

  6. No Access

    Article

    Internal temperature and flame jet characteristics during thermal runaway triggered by nail penetration for NCM811 lithium-ion battery

    The thermal runaway (TR) of NCM811 Lithium-ion battery (LIB) triggered by nail penetration was tested under three cases of full depth@100%SOC, half depth@100%SOC, and full depth@50%SOC, respectively. The inter...

    Haimin Wang, Zhen Yang, Chenglong Jiang in Journal of Thermal Analysis and Calorimetry (2022)

  7. No Access

    Chapter and Conference Paper

    A Transformer-Based Framework for Geomagnetic Activity Prediction

    Geomagnetic activities have a crucial impact on Earth, which can affect spacecraft and electrical power grids. Geospace scientists use a geomagnetic index, called the Kp index, to describe the overall level of...

    Yasser Abduallah, Jason T. L. Wang, Chunhui Xu in Foundations of Intelligent Systems (2022)

  8. No Access

    Article

    Development of a diabetes mobile healthcare system and clinical application in China: a narrative review

    With the rapid development and spread of information technology, mobile healthcare (M-healthcare) is emerging as a feasible option for improved monitoring and treatment of patients with chronic diseases such a...

    Lin Sun, Zhuo Li, Shugang **, Huan Wang, Heyuan Wang in Journal of Public Health (2021)

  9. No Access

    Article

    Solar Filament Segmentation Based on Improved U-Nets

    To detect, track and characterize solar filaments more accurately, novel filament segmentation methods based on improved U-Nets are proposed. The full-disk H ...

    Dan Liu, Wei Song, Ganghua Lin, Haimin Wang in Solar Physics (2021)

  10. No Access

    Article

    Effects of the Phase Content on Spallation Damage Behavior in Dual-Phase Steel

    The dual-phase steel (martensite (M)/ferrite (F)) samples with different phase content were dynamic loaded simultaneously by one-stage light gas gun. The velocity of free surface particles was measured by Doppler...

    Yang Yang, Haimin Wang, Can Wang in Journal of Materials Engineering and Performance (2021)

  11. Article

    Open Access

    Critical Science Plan for the Daniel K. Inouye Solar Telescope (DKIST)

    The National Science Foundation’s Daniel K. Inouye Solar Telescope (DKIST) will revolutionize our ability to measure, understand, and model the basic physical processes that control the structure and dynamics of ...

    Mark P. Rast, Nazaret Bello González, Luis Bellot Rubio, Wenda Cao in Solar Physics (2021)

  12. No Access

    Article

    A reversible RNA on-switch that controls gene expression of AAV-delivered therapeutics in vivo

    Widespread use of gene therapy technologies is limited in part by the lack of small genetic switches with wide dynamic ranges that control transgene expression without the requirement of additional protein com...

    Guocai Zhong, Haimin Wang, Wenhui He, Yujun Li, Huihui Mou in Nature Biotechnology (2020)

  13. Article

    Open Access

    Flare-productive active regions

    Strong solar flares and coronal mass ejections, here defined not only as the bursts of electromagnetic radiation but as the entire process in which magnetic energy is released through magnetic reconnection and...

    Shin Toriumi, Haimin Wang in Living Reviews in Solar Physics (2019)

  14. Article

    Open Access

    Transient rotation of photospheric vector magnetic fields associated with a solar flare

    As one of the most violent eruptions on the Sun, flares are believed to be powered by magnetic reconnection. The fundamental physics involving the release, transfer, and deposition of energy have been studied ...

    Yan Xu, Wenda Cao, Kwangsu Ahn, Ju **g, Chang Liu, Jongchul Chae in Nature Communications (2018)

  15. No Access

    Article

    Cpf1 proteins excise CRISPR RNAs from mRNA transcripts in mammalian cells

    Cpf1 is a CRISPR effector protein that exhibits greater genome editing specificity than Cas9 nuclease. Cpf1 from two distinct bacteria selectively processes RNA polymerase II transcripts into crRNA fragments c...

    Guocai Zhong, Haimin Wang, Yujun Li, Mai H Tran, Michael Farzan in Nature Chemical Biology (2017)

  16. No Access

    Article

    High-resolution observations of flare precursors in the low solar atmosphere

    Solar flares are generally believed to be powered by free magnetic energy stored in the corona1, but the build up of coronal energy alone may be insufficient to trigger the flare to occur2. The flare onset mechan...

    Haimin Wang, Chang Liu, Kwangsu Ahn, Yan Xu, Ju **g, Na Deng in Nature Astronomy (2017)

  17. Article

    Open Access

    Flare differentially rotates sunspot on Sun’s surface

    Sunspots are concentrations of magnetic field visible on the solar surface (photosphere). It was considered implausible that solar flares, as resulted from magnetic reconnection in the tenuous corona, would ca...

    Chang Liu, Yan Xu, Wenda Cao, Na Deng, Jeongwoo Lee in Nature Communications (2016)

  18. No Access

    Article

    Strong Blue Asymmetry in H \(\upalpha\) Line as a Preflare Activity

    Chromospheric activities before solar flares provide important clues to the mechanisms that initiate solar flares, but are as yet poorly understood. We report a significant and rapid H

    Kyuhyoun Cho, Jeongwoo Lee, Jongchul Chae, Haimin Wang, Kwangsu Ahn in Solar Physics (2016)

  19. Article

    Open Access

    Unprecedented Fine Structure of a Solar Flare Revealed by the 1.6 m New Solar Telescope

    Solar flares signify the sudden release of magnetic energy and are sources of so called space weather. The fine structures (below 500 km) of flares are rarely observed and are accessible to only a few instrume...

    Ju **g, Yan Xu, Wenda Cao, Chang Liu, Dale Gary, Haimin Wang in Scientific Reports (2016)

  20. Article

    Open Access

    Witnessing magnetic twist with high-resolution observation from the 1.6-m New Solar Telescope

    Magnetic flux ropes are highly twisted, current-carrying magnetic fields. They are crucial for the instability of plasma involved in solar eruptions, which may lead to adverse space weather effects. Here we pr...

    Haimin Wang, Wenda Cao, Chang Liu, Yan Xu, Rui Liu, Zhicheng Zeng in Nature Communications (2015)

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