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Astronomical tuning and magnetostratigraphy of Neogene biogenic reefs in Xisha Islands, South China Sea

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Science Bulletin 2018年第9期63卷 564-573页

作者： Liang Yi Zhimin Jian Xinyu Liu youhua zhu Daojun Zhang Zhenfeng Wang Chenglong Deng State Key Laboratory of Marine Geology Tongji University Shanghai 200092 China Laboratory for Marine Geology. Qingdao National Laboratory for Marine Science and Technology Qingdao 266061 China China National Offshore Oil Corporation Ltd. Zhanjiang Branch Zhanjiang 524057 China Key Laboratory of Economic Stratigraphy and Palaeogeography Nanjing Institute of Geology and Palaeontology. Chinese Academy of Sciences Nanjing 210008 China State Key Laboratory of Lithospheric Evolution. Institute of Geology and Geophysics. Chinese Academy of Sciences Beijing 100029 China Institutions of Earth Science Chinese Academy of Sciences Beijing 100029 China University of Chinese Academy of Sciences. Beijing 100049 China

Biogenic reefs are one of two major depositional types in the South China Sea, and are constructed by coral, algae and bryozoa. The West Pacific is a major area of biogenic reef development and plays a critical role in the global carbon cycle. However, the lack of geochronological studies in previous works inhibits our understanding of their contributions. Herein, we conduct a cyclostratigraphic and magnetostratigraphic study on Neogene biogenic reefs using the XK–1 core that was drilled at the Shidao Island,Xisha(Paracel) Islands. The main findings of this study are:(1) the establishment of reliable magentostratigraphy for Ledong, Huangliu, Meishan and Sanya Formations;(2) the magnetic susceptibility variation can be inferred as growth index and tuned to the 405–ka long eccentricity cycle;(3) the astronomical geochronology suggests that the bottom ages for Ledong, Yinggehai, Huangliu, Meishan,and Sanya Formations are 2.2 Ma, 5.7 Ma, 10.4 Ma, 16.6 Ma, and 24.3 Ma, respectively; and (4) Earth's eccentricity and obliquity played predominant roles in biogenic reef establishment on orbital to tectonic timescales. Thus, the reported geochronology offers an opportunity to test the contributions of various factors and hypothesize their roles in the global carbon cycle in future.

关键词： Astronomical tuning Magentostratigraphy Magnetic susceptibility Biogenic reefs Neogene South China Sea

Effect of surface plasmon coupling with radiating dipole on the polarization characteristics of AlGaN-based light-emitting diodes

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Chinese Physics B 2022年第7期31卷 573-578页

作者： Yi Li Mei Ge Meiyu Wang youhua zhu Xinglong Guo School of Information Science and Technology&Tongke School of Microelectronics Nantong UniversityNantong 226019China

The optical polarization characteristics of surface plasmon(SP)coupled Al Ga N-based light emitting diodes(LEDs)are investigated theoretically by analyzing the radiation recombination process and scattering process *** the Al_(0.5)Ga_(0.5)N/Al/Al_(2)O_(3)slab structure,the relative intensity of TE-polarized and TM-polarized spontaneous emission(SE)rate into the SP mode obviously depends on the thickness of the Al *** calculation results show that TM dominated emission will be transformed into TE dominated emission with the decrease of the Al thickness,while the emission intensities of both TE/TM polarizations will decrease *** addition,compared with TM polarized emission,TE polarized emission is easier to be extracted by SP *** the Al_(0.5)Ga_(0.5)N/Al nano-particle structure,the ratio of transmittance for TE/TM polarized emission can reach~3.06,while for the Al free structure,it is only ***,the degree of polarization of SP coupled LED can be improved by the reasonable structural design.

关键词： surface plasmon AlGaN-based light emitting diodes FDTD K-P method

Improvement of TE-polarized emission in type-Ⅱ InAlN–AlGaN/AlGaN quantum well

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Chinese Physics B 2019年第9期28卷 343-347页

作者： Yi Li youhua zhu Meiyu Wang Honghai Deng Haihong Yin School of Information Science and Technology & Tongke School of Microelectronics Nantong University

The optical properties of the type-Ⅱ lineup InxAl1-xN-Al0.59Ga0.41N/Al0.74Ga0.26N quantum well(QW) structures with different In contents are investigated by using the six-by-six K-P *** type-Ⅱ lineup structures exhibit the larger product of Fermi-Dirac distribution functions of electron fc^n and hole(1-fv^Um) and the approximately equal transverse electric(TE) polarization optical matrix elements(|Mx|^2) for the c1-v1 *** a result, the peak intensity in the TE polarization spontaneous emission spectrum is improved by 47.45%-53.84% as compared to that of the conventional AlGaN QW *** addition, the type-Ⅱ QW structure with x^0.17 has the largest TE mode peak intensity in the investigated In-content range of *** can be attributed to the combined effect of |Mx|^2 and fc^n(1-fv^Um) for the c1-v1, c1-v2, and c1-v3 transitions.

关键词： type-Ⅱ lineup quantum well K-P method transverse electric(TE) polarized emission

从我国器官捐献发展的现状看脑死亡立法势在必行

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中华医学杂志 2021年第36期101卷 2831-2834页

作者：朱有华海军军医大学第一附属医院(上海长海医院) 上海200433

随着我国公民素质的大幅度提高和医学科普的日趋精进,近10年来我国器官捐献工作得到迅速发展。作为死亡的判定标准,脑死亡尽管已在医学界获得普遍认可,但尚未进行立法确认。中国专家撰写了《脑死亡判定实施与管理:专家指导意见(2021)》... 详细信息

随着我国公民素质的大幅度提高和医学科普的日趋精进,近10年来我国器官捐献工作得到迅速发展。作为死亡的判定标准,脑死亡尽管已在医学界获得普遍认可,但尚未进行立法确认。中国专家撰写了《脑死亡判定实施与管理:专家指导意见(2021)》。其主要内容涉及临床医师在脑死亡判定过程中遇到的一些问题。本文着重探讨了我国脑死亡立法的现状及其必要性,并基于我国器官捐献现状及公众对脑死亡立法接受程度的分析,旨在助力加快脑死亡相关立法的进程。

关键词：器官捐献脑死亡立法

Risk Factors for Cardiovascular Diseases in Renal Transplant Recipients and Their Management

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器官移植内科学杂志 2010年第4期5卷 128-132页

作者： youhua zhu Wenyu Zhao Institute of Organ Transplantation of PLA Changzheng Hospital the Second Military Medical UniversityShanghai 200003 China

Effects of SMO Preservation Solution on Apoptosis and Energy Metabolism in Canine Kidneys during Cold Preservation

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器官移植内科学杂志 2007年第4期2卷 218-222页

作者： Qincheng Han Xiongwei zhu Zhihua Zhou youhua zhu Organ Transplantation Institution of PLA Changzheng Hospital Second Military Medical UniversityShanghai 200003 China

南海北部含油气盆地渐新世—上新世沟鞭藻化石研究综述

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微体古生物学报 2021年第2期38卷 187-196页

作者：祝幼华现代古生物学和地层学国家重点实验室中国科学院南京地质古生物研究所南京210008

珠江口、琼东南、莺歌海和北部湾盆地是我国南海北部重要的新生代含油气盆地,微体古生物在各盆地生物地层框架建立中发挥了重要的作用。本文根据上述盆地已发表的渐新世—上新世沟鞭藻化石有关文献,简要评述了沟鞭藻化石的研究现状,并... 详细信息

珠江口、琼东南、莺歌海和北部湾盆地是我国南海北部重要的新生代含油气盆地,微体古生物在各盆地生物地层框架建立中发挥了重要的作用。本文根据上述盆地已发表的渐新世—上新世沟鞭藻化石有关文献,简要评述了沟鞭藻化石的研究现状,并探讨了存在的问题及今后研究方向。

关键词：沟鞭藻化石渐新世—上新世含油气盆地南海北部

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缅甸英雄岛始新世孢粉组合及其古环境意义

石油实验地质 2024年第1期46卷 136-145页

作者：史德锋祝幼华中海石油(中国)有限公司海南分公司海口570312 中国科学院南京地质古生物研究所南京210008

为配合中缅合作的M区块油气勘探,确定该区块英雄岛含油气地层时代与沉积环境,对缅甸英雄岛R-3井2562~2844 m井段10个烃源岩样品进行了孢粉实验分析。通过观察,在每个样品中均发现了较丰富的孢粉化石,共鉴定出85属135种或未定种。该井段... 详细信息

为配合中缅合作的M区块油气勘探,确定该区块英雄岛含油气地层时代与沉积环境,对缅甸英雄岛R-3井2562~2844 m井段10个烃源岩样品进行了孢粉实验分析。通过观察,在每个样品中均发现了较丰富的孢粉化石,共鉴定出85属135种或未定种。该井段的孢粉化石以Momipites和Quercoidites含量丰富,始新世常见分子Sabalpolllenites areolatus断续出现,并见有特征分子Schizaeoisporites eocenicus为主要特征,根据孢粉特征分子和优势属种的分布规律,命名为Schizaeoisporites eocenicus-Quercoidites-Momipites-Sabalpollenites areolatus组合;对比相同井段有孔虫和钙质超微化石的分布时代,推测当前的孢粉组合时代为中晚始新世。依据孢粉组合面貌,对照我国油气区古近纪—新近纪孢粉序列的数据统计结果,系统研究后所建立的划分孢粉植物类型、气温带和干湿度带的3个模式,并结合本钻井其他孢型化石分布特征,认为研究区中晚始新世地层为近海陆地环境,北亚热带、暖温带湿润型古气候沉积。

关键词：孢粉组合古环境中晚始新世英雄岛缅甸

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我国儿童肾移植的现状与展望

武汉大学学报（医学版） 2016年第4期37卷 603-606页

作者：朱有华曾力第二军医大学附属长征医院器官移植中心上海200003

儿童终末期肾病(ESRD)应首选肾移植治疗。本文对我国行肾移植患儿的病因、肾移植围手术期处理、手术时机及术式、术后生长发育等方面进行探讨,以利于儿童ESRD的早期诊断和治疗。

关键词：儿童肾移植终末期肾病综述