Search Results - "Lei, Weihua"

Steep Balmer Decrement in Weak AGNs May Not Be Caused by Dust Extinction: Clues from Low-luminosity AGNs and Changing-look AGNs by Wu, Jiancheng, Wu, Qingwen, Xue, Hanrui, Lei, Weihua, Lyu, Bing

“…Abstract The hydrogen Balmer decrement (e.g., H α /H β ) is widely adopted as an indicator of the internal reddening of active galactic nuclei (AGNs). This is…”
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Exploring the Properties of Photosphere and Emission Lines for Tidal Disruption Events Based on the Global Solution of Slim Disk and Winds by Zhang, Yuehua, Wu, Qingwen, Wu, Jiancheng, Cao, Xinwu, Lei, Weihua

“…The theoretical debris supply rate from a tidal disruption of stars can exceed about 100 times of Eddington accretion rate for a 106−7M⊙ supermassive black…”
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The Second Plateau in X-Ray Afterglow Providing Additional Evidence for Rapidly Spinning Magnetars as the GRB Central Engine by Zhao, Litao, Liu, Liangduan, Gao, He, Lan, Lin, Lei, WeiHua, Xie, Wei

“…Evidence for the central engine of gamma-ray bursts (GRBs) has been collected in the Neil Gehrels Swift data. For instance, some GRBs show an internal X-ray…”
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Giant X-Ray and Optical Bump in GRBs: Evidence for Fallback Accretion Model by Zhao, Litao, Gao, He, Lei, WeiHua, Lan, Lin, Liu, Liangduan

“…The successful operation of dedicated detectors has brought us valuable information for understanding the central engine and the progenitor of gamma-ray bursts…”
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Structure, and Mechanical and Thermal Properties of Vinyl-Polydimethylsiloxane/Zinc Dimethacrylate/Isobutylene-Isoprene Rubber Composites by Weihua, Lei, Guofang, Ding, Suming, Sun, Chengzhen, Geng, Yaling, Zhang

“…The vinyl-polydimethylsiloxane (v-PDMS) composite reinforced by micron size ZDMA particles previously showed high modulus, thermal stability,…”
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Forecasting the evolution of fast-changing transportation networks using machine learning by Lei, Weihua, Alves, Luiz G. A., Amaral, Luís A. Nunes

“…Transportation networks play a critical role in human mobility and the exchange of goods, but they are also the primary vehicles for the worldwide spread of…”
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The Weakness of Soft X-Ray Intensity: Possible Physical Reason for Weak-line Quasars by Wu, Jiancheng, Wu, Qingwen, Jin, Chichuan, Wu, Jianfeng, Lei, Weihua, Cao, Xinwu, Fan, Xiao, Lei, Xiangli, Wang, Mengye, Xue, Hanrui, Lyu, Bing

“…Abstract Weak-line quasars (WLQs) are a notable group of active galactic nuclei (AGNs) that show unusually weak UV lines even though their optical-UV continuum…”
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Computational experiments with cellular-automata generated images reveal intrinsic limitations of convolutional neural networks on pattern recognition tasks by Lei, Weihua, Zanchettin, Cleber, Santos, Flávio A. O., Nunes Amaral, Luís A.

“…The extraordinary success of convolutional neural networks (CNNs) in various computer vision tasks has revitalized the field of artificial intelligence. The…”
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Quantifying the impact of uninformative features on the performance of supervised classification and dimensionality reduction algorithms by Lei, Weihua, Zanchettin, Cleber, Ho, Zoey E., Nunes Amaral, Luís A.

“…Machine learning approaches have become critical tools in data mining and knowledge discovery, especially when attempting to uncover relationships in…”
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Role of Toll-like receptor 4 in inflammation-induced preterm delivery by Li, Liping, Kang, Jiali, Lei, Weihua

“…The aim of the present study was to investigate the potential role of Toll-like receptor 4 (TLR4) in lipopolysaccharide (LPS)-induced preterm delivery…”
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Recent trends and developments in the asymmetric synthesis of profens by Wang, Qiuyue, Qi, Yuchen, Gao, Xuefeng, Gong, Lili, Wan, Ruiying, Lei, Weihua, Wang, Zhenguo, Mao, Jianyou, Guan, Haixing, Li, Wei, Walsh, Patrick J.

“…The profens belong to a class of nonsteroidal anti-inflammatory drugs (NSAIDs), which exert significant anti-inflammatory, analgesic, antipyretic and other…”
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Deterministic and Stochastic Bifurcations of the Catalytic CO Oxidation on Ir(111) Surfaces with Multiple Delays by Huang, Zaitang, Lei, Weihua

“…The main purpose is to investigate both deterministic and stochastic bifurcations of the catalytic CO oxidation. Firstly, super- and subcritical bifurcations…”
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Energy dissipation and angular momentum transfer within a magnetically torqued accretion disc by Gan, ZhaoMing, Wang, DingXiong, Lei, WeiHua, Li, Yang

“…We discuss transportation and redistribution of energy and angular momentum in the magnetic connection (MC) process and Blandford-Payne (BP) process. MC…”
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A toy model for magnetized neutrino-dominated accretion flows by Lei, WeiHua, Wang, DingXiong, Zhang, Lei, Gan, ZhaoMing, Zou, YuanChuan

“…In this paper, we present a simplified model for a magnetized neutrino-dominated accretion flow (NDAF) in which the effect of black hole (BH) spin is taken…”
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Simultaneously reduced viscosity and enhanced strength of liquid silicone rubber/silica composites by silica surface modification by Geng, Chengzhen, Zhang, Qian, Lei, Weihua, Yu, Fengmei, Lu, Ai

“…ABSTRACT Silica is the most widely‐used filler to reinforce liquid silicone rubber (LSR), but the high viscosity of LSR/silica suspension significantly limits…”
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Machine Learning in Data-Driven Research: Opportunities and Challenges by Lei, Weihua

“…The advent of big data technologies has enabled data-driven approaches to become an emergent paradigm for scientific discovery. Machine learning (including…”
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HYPERACCRETING BLACK HOLE AS GAMMA-RAY BURST CENTRAL ENGINE. I. BARYON LOADING IN GAMMA-RAY BURST JETS by Lei, Wei-Hua, Zhang, Bing, Liang, En-Wei

“…A hyperaccreting stellar-mass black hole has been long speculated as the best candidate for the central engine of gamma-ray bursts (GRBs). Recent rich…”
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LORENTZ-FACTOR-ISOTROPIC-LUMINOSITY/ENERGY CORRELATIONS OF GAMMA-RAY BURSTS AND THEIR INTERPRETATION by JING LÜ, ZOU, Yuan-Chuan, LEI, Wei-Hua, BING ZHANG, QINGWEN WU, WANG, Ding-Xiong, LIANG, En-Wei, LÜ, Hou-Jun

“…The bulk Lorentz factor of the gamma-ray burst (GRB) ejecta ([Gamma] sub(0)) is a key parameter to understanding GRB physics. Liang et al. have discovered a…”
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Triggering the Untriggered: The First Einstein Probe-detected Gamma-Ray Burst 240219A and Its Implications by Yin, Yi-Han Iris, Zhang, Bin-Bin, Yang, Jun, Sun, Hui, Zhang, Chen, Shao, Yi-Xuan, Hu, You-Dong, Zhu, Zi-Pei, Xu, Dong, An, Li, Gao, He, Wu, Xue-Feng, Zhang, Bing, Castro-Tirado, Alberto Javier, Pandey, Shashi B., Rau, Arne, Lei, Weihua, Xie, Wei, Ghirlanda, Giancarlo, Piro, Luigi, O’Brien, Paul, Troja, Eleonora, Jonker, Peter, Yu, Yun-Wei, An, Jie, Chen, Run-Chao, Chen, Yi-Jing, Dong, Xiao-Fei, Eyles-Ferris, Rob, Fan, Zhou, Fu, Shao-Yu, Fynbo, Johan P. U., Gao, Xing, Huang, Yong-Feng, Jiang, Shuai-Qing, Jiang, Ya-Hui, Julakanti, Yashaswi, Kuulkers, Erik, Lao, Qing-Hui, Li, Dongyue, Ling, Zhi-Xing, Liu, Xing, Liu, Yuan, Mou, Jia-Yu, Pan, Xin, Wei, Daming, Wu, Qinyu, Yadav, Muskan, Yang, Yu-Han, Yuan, Weimin, Zhang, Shuang-Nan

“…Abstract The Einstein Probe (EP) achieved its first detection and localization of a bright X-ray flare, EP240219a, on 2024 February 19, during its…”
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RADIAL ANGULAR MOMENTUM TRANSFER AND MAGNETIC BARRIER FOR SHORT-TYPE GAMMA-RAY-BURST CENTRAL ENGINE ACTIVITY by TONG LIU, LIANG, En-Wei, GU, Wei-Min, HOU, Shu-Jin, LEI, Wei-Hua, LIN LIN, DAI, Zi-Gao, ZHANG, Shuang-Nan

“…Soft extended emission (EE) following initial hard spikes up to 100 s was observed with Swift/BAT for about half of known short-type gamma-ray bursts (SGRBs)…”
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