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	Energy Sources Generation and Energy Cascades along the Kuroshio East of Taiwan Island and the East China Sea 期刊论文 OAI收割 JOURNAL OF MARINE SCIENCE AND ENGINEERING, 2021, 卷号: 9, 期号: 7, 页码: 24 作者: Wang, Ru; Hou, Yijun; Liu, Ze \| 收藏 \| 浏览/下载：33/0 \| 提交时间：2021/08/17 energy source inverse energy cascade wind stress density differences energy flux
	An underlying clock in the extreme flip-flop state transitions of the black hole transient Swift J1658.2-4242 期刊论文 OAI收割 Astronomy and Astrophysics, 2020, 卷号: 641, 页码: A101 作者: HXMT \| 收藏 \| 浏览/下载：65/0 \| 提交时间：2022/02/08 accretion accretion disks black hole physics X-rays: binaries time Astrophysics - High Energy Astrophysical Phenomena Abstract: Aims: Flip-flops are top-hat-like X-ray flux variations, which have been observed in some transient accreting black hole binary systems, and feature simultaneous changes in the spectral hardness and the power density spectrum (PDS). They occur at a crucial time in the evolution of these systems, when the accretion disc emission starts to dominate over coronal emission. Flip-flops remain a poorly understood phenomenon, so we aim to thoroughly investigate them in a system featuring several such transitions. Methods: Within the multitude of observations of Swift J1658.2-4242 during its outburst in early 2018, we detected 15 flip-flops, enabling a detailed analysis of their individual properties and the differences between them. We present observations by XMM-Newton, NuSTAR, Astrosat, Swift, Insight-HXMT, INTEGRAL, and ATCA. We analysed their light curves, searched for periodicities, computed their PDSs, and fitted their X-ray spectra, to investigate the source behaviour during flip-flop transitions and how the interval featuring flip-flops differs from the rest of the outburst. Results: The flip-flops of Swift J1658.2-4242 are of an extreme variety, exhibiting flux differences of up to 77% within 100 s, which is much larger than what has been seen previously. We observed radical changes in the PDS simultaneous with the sharp flux variations, featuring transitions between the quasi-periodic oscillation types C and A, which have never been observed before. Changes in the PDS are delayed, but more rapid than changes in the light curve. Flip-flops occur in two intervals within the outburst, separated by about two weeks in which these phenomena were not seen. Transitions between the two flip-flop states occurred at random integer multiples of a fundamental period of 2.761 ks in the first interval and 2.61 ks in the second. Spectral analysis reveals the high and low flux flip-flop states to be very similar, but distinct from intervals lacking flip-flops. A change of the inner temperature of the accretion disc is responsible for most of the flux difference in the flip-flops. We also highlight the importance of correcting for the influence of the dust scattering halo on the X-ray spectra.
	Investigation on the excited state intramolecular proton transfer process for the novel 2-(3,5-dichloro-2-hydroxy-phenyl)-benzooxazole-5-carboxylicacid system 期刊论文 OAI收割 JOURNAL OF PHYSICAL ORGANIC CHEMISTRY, 2019, 卷号: 32, 期号: 10, 页码: 9 作者: Gao, Haiyan; Yang, Xiaohui; Zhang, Tianjie; Yang, Dapeng \| 收藏 \| 浏览/下载：92/0 \| 提交时间：2019/12/02 charge density differences charge redistribution ESIPT frontier molecular orbital intramolecular hydrogen bond
	Interseasonal and interspecies diversities of Symbiodinium density and effective photochemical efficiency in five dominant reef coral species from Luhuitou fringing reef, northern South China Sea 期刊论文 OAI收割 CORAL REEFS, 2017, 卷号: 36, 期号: 2, 页码: 477-487 作者: Xu, LJ; Yu, KF; Li, S; Liu, GH; Tao, SC 收藏 \| 浏览/下载：28/0 \| 提交时间：2017/09/22 Symbiodinium Density Effective Photochemical Efficiency Interspecific Differences Seasonal Variation Thermal Bleaching Susceptibility
	Application of adaptive enhancement means in head and neck CR image (EI CONFERENCE) 会议论文 OAI收割 2012 3rd International Conference on Information Technology for Manufacturing Systems, ITMS 2012, September 8, 2012 - September 9, 2012, Qingdao, China Zhang M.-H.; Zhang Y.-Y. 收藏 \| 浏览/下载：44/0 \| 提交时间：2013/03/25 Digital CR of head and neck overcomes the disadvantage of regular X-ray radiography which can not reveal bone and soft tissue position deficiency in one exposing and reduces the Xray radiation dose. Meanwhile various factors cause the decline of image quality and images must be enhanced in order to meet demands of doctor's clinical diagnosis. The general enhancement algorithms don't consider body's structure differences and density characteristics. A new adaptive CR enhancement algorithm was proposed in this article and head and neck CR images were processed with this method and compared with linear unsharp masking method. The experiment proves that the details of CR image enhanced were abundant and enhanced CR image had good visual effect SNR was high as well as detail variance /background variance (DV/BV) indicating that this algorithm is suitable for head and neck CR medical images. (2012) Trans Tech Publications Switzerland.
	Acclimation to irradiance in seedlings of three tropical rain forest Garcinia species after simulated gap formation 期刊论文 OAI收割 PHOTOSYNTHETICA, 2006, 卷号: 44, 期号: 2, 页码: 193-201 作者: Cao KF; Xu ZF* 收藏 \| 浏览/下载：25/0 \| 提交时间：2012/03/15 chlorophyll fluorescence epidermis leaf thickness photoinhibition photosynthesis respiration species differences spongy/palisade ratio stomata density
	Acclimation to irradiance in seedlings of three tropical rain forest Garcinia species after simulated gap formation 期刊论文 OAI收割 PHOTOSYNTHETICA, 2006, 卷号: 44, 期号: 2, 页码: 193-201 作者: Guo, XR; Cao, KF; Xu, ZF \| 收藏 \| 浏览/下载：24/0 \| 提交时间：2011/12/20 Chlorophyll Fluorescence Epidermis Leaf Thickness Photoinhibition Photosynthesis Respiration Species Differences Spongy/palisade Ratio Stomata Density