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浏览/检索结果: 共83条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Selective laser melted high Ni content TiNi alloy with superior superelasticity and hardwearing 期刊论文  OAI收割 JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2022, 卷号: 116, 页码: 246-257 作者:  Shen, Hui;  Zhang, Qingquan;  Yang, Ying;  Ren, Yang;  Guo, Yanbao   |  收藏  |  浏览/下载：92/0  |  提交时间：2022/06/15 Selective laser melting  High Ni content TiNi  Superelasticity  Wear  In situ high-energy X-ray diffraction  Microstructure   Hybrid Regularized Cone-Beam Reconstruction for Axially Symmetric Object Tomography 期刊论文  OAI收割 ACTA MATHEMATICA SCIENTIA, 2021, 页码: 17 作者:  Li, Xinge;  Wei, Suhua;  Xu, Haibo;  Chen, Chong   |  收藏  |  浏览/下载：11/0  |  提交时间：2022/04/02 high-energy X-ray radiography  cone-beam global reconstruction  inverse problem  total variation  alternating proximal gradient method   Mechanical, corrosion and magnetic behavior of a CoFeMn1.2NiGa0.8 high entropy alloy 期刊论文  OAI收割 JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2021, 卷号: 73, 页码: 139-144 作者:  Sun Xiaoming;  Du Lingzhong;  Lan Hao;  Cui Jingyi;  Wang Liang   |  收藏  |  浏览/下载：109/0  |  提交时间：2021/05/17 High entropy alloys  High-energy X-ray diffraction  Compressive property  Corrosion resistance  Magnetic behavior   Mechanical, corrosion and magnetic behavior of a CoFeMn1.2NiGa0.8 high entropy alloy 期刊论文  OAI收割 JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2021, 卷号: 73, 页码: 139-144 作者:  Sun, Xiaoming;  Du, Lingzhong;  Lan, Hao;  Cui, Jingyi;  Wang, Liang   |  收藏  |  浏览/下载：98/0  |  提交时间：2021/08/31 High entropy alloys  High-energy X-ray diffraction  Compressive property  Corrosion resistance  Magnetic behavior   Re-estimating the Spin Parameter of the Black Hole in Cygnus X-1 期刊论文  OAI收割 The Astrophysical Journal, 2021, 卷号: 908, 期号: 2 作者:  Zhao,Xueshan;  Gou,Lijun;  Dong,Yanting;  Zheng,Xueying;  Steiner,James F.   |  收藏  |  浏览/下载：27/0  |  提交时间：2021/12/06 X-ray binary stars  Black hole physics  High energy astrophysics   BAT AGN Spectroscopic Survey. XX. Molecular Gas in Nearby Hard-X-Ray-selected AGN Galaxies 期刊论文  OAI收割 The Astrophysical Journal Supplement Series, 2021, 卷号: 252, 期号: 2 作者:  Koss,Michael J.;  Strittmatter,Benjamin;  Lamperti,Isabella;  Shimizu,Taro;  Trakhtenbrot,Benny   |  收藏  |  浏览/下载：33/0  |  提交时间：2021/12/06 Active galactic nuclei  AGN host galaxies  Molecular gas  Surveys  X-ray active galactic nuclei  Survival analysis  Submillimeter astronomy  High energy astrophysics  Seyfert galaxies  Catalogs   Synchronous X-ray/Optical QPOs from the Black Hole LMXB MAXI J1820+070 期刊论文  OAI收割 Monthly Notices of the Royal Astronomical Society, 2021 作者:  HXMT   |  收藏  |  浏览/下载：52/0  |  提交时间：2022/02/08 black hole physics  Low Mass X-ray Binaries  accretion  accretion  discs  stars: individual (MAXI J1820+070)  Astrophysics - High Energy  Astrophysical Phenomena  Abstract: We present high-speed optical photometry from SAAO and SALT on the black hole LMXB MAXI J1820+070 (ASSASN-18ey), some of it simultaneous with NICER, Swift and Insight-HXMT X-ray coverage. We detect optical Quasi-Periodic Oscillations (QPOs) that move to higher frequencies as the outburst progresses, tracking both the frequency and evolution of similar X-ray QPOs previously reported. Correlated X-ray/optical data reveal a complex pattern of lags, including an anti-correlation and a sub-second lag that evolve over the first few weeks of outburst. They also show correlated components separated by a lag equal to the QPO period roughly centered on zero lag, implying that the inter-band variability is strongly and consistently affected by these QPOs at a constant phase lag of roughly ±Ю The synchronisation of X-ray and optical QPOs indicates that they must be produced in regions physically very close to each other  we thus propose that they can be explained by a precessing jet model, based on analogies with V404 Cyg and MAXI J1348-630.   Periodicity Search on X-Ray Bursts of SGR J1935+2154 Using 8.5 yr of Fermi/GBM Data 期刊论文  OAI收割 The Astrophysical Journal, 2021, 卷号: 923, 页码: L30 作者:  HXMT   |  收藏  |  浏览/下载：22/0  |  提交时间：2022/02/08 2008  1471  Astrophysics - High Energy Astrophysical Phenomena  Abstract: We performed a systematic search for X-ray bursts of the SGR J1935+2154 using the Fermi Gamma-ray Burst Monitor continuous data dated from 2013 January to 2021 October. Eight bursting phases, which consist of a total of 353 individual bursts, are identified. We further analyze the periodic properties of our sample using the Lomb-Scargle periodogram. The result suggests that those bursts exhibit a period of ~238 days with a ~63.2% duty cycle. Based on our analysis, we further predict two upcoming active windows of the X-ray bursts. Since 2021 July, the beginning date of our first prediction has been confirmed by the ongoing X-ray activities of the SGR J1935+2154.   Formation and Evolution of Ultraluminous X-Ray Pulsar Binaries to Pulsar-Neutron Star and Pulsar-White Dwarf Systems 期刊论文  OAI收割 The Astrophysical Journal, 2020, 卷号: 902, 页码: 125 作者:  Abdusalam, K.;  Ablimit, Iminhaji;  Hashim, P.;  Lü, G. -L.;  Mardini, M. K.   |  收藏  |  浏览/下载：52/0  |  提交时间：2021/06/25 Binary stars  Close binary stars  X-ray binary stars  Pulsars  Gravitational wave sources  White dwarf stars  Compact objects  154  254  1811  1306  677  1799  288  Astrophysics - High Energy  Astrophysical Phenomena   Discovery of the Black Hole X-Ray Binary Transient MAXI J1348–630 期刊论文  OAI收割 The Astrophysical Journal Letters, 2020, 卷号: 899, 期号: 1 作者:  Tominaga,Mayu;  Nakahira,Satoshi;  Shidatsu,Megumi;  Oeda,Motoki;  Ebisawa,Ken   |  收藏  |  浏览/下载：21/0  |  提交时间：2021/12/06 Black holes  Compact objects  High energy astrophysics  X-ray novae  Stellar accretion disks