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Rare Metals 2013年第2期32卷 150-158页

作者： Yang-Huan zhang Hui-Ping Ren Tai Yang Chen Zhao Li-Cui Chen Hong-Wei Shang Dong-liang Zhao Key Laboratory of Integrated Exploitation of Baiyun Obo Multi-Metal Resources Inner Mongolia University of Science and Technology Department of Functional Material Research Central Iron and Steel Research Institute

The La-Mg-Ni-based A2B7-type Lao.8_xNdx ***.o5 （x = 0, 0.1, 0.2, 0.3, and 0.4） electrode alloys were prepared by casting and annealing. The influence of the partial substitution of Nd for La on the structure and electrochemical performances of the alloys was investigated. The structural analysis of X-ray diffraction and scanning electron microscopy reveals that the experimental alloys consist of two major phases：（La,Mg）2Ni7 with the hexagonal Ce2Ni7-type structure and LaNi5 with the hexagonal CaCus-type structure as well as some residual phases of LaNi3 and NdNis. The electrochemical measurements indicate that an evident change of the electrochemical performance of the alloys is associated with the substitution of Nd for La. The discharge capacity of the alloy first increases then decreases with the growing Nd content, whereas their cycle stability clearly grows all the time. Furthermore, the measurements of the high rate discharge ability, the limiting current density, and hydrogen diffusion coefficient all demonstrate that the electrochemical kinetic properties of the alloy electrodes first augment then decline with the rising amount of Nd substitution.

关键词： A2B7-type electrode alloy Substitution Lawith Nd Structure Electrochemical performance

Impact of grazing on germination trait selection in an alpine grassland on the Tibet Plateau

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Journal of Plant Ecology 2022年第4期15卷 818-828页

作者： Yang Liu Kun Liu Zhilong zhang Shiting zhang Carol C.Baskin Jerry M.Baskin Ting liang Haiyan Bu Shuxia Li Tingting zhang Xianliang Cui Sa Xiao State Key Laboratory of Grassland and Agro-ecosystems School of Life SciencesLanzhou UniversityLanzhou 730020China Department of Chemistry and Life Science Gansu Normal College for NationalitiesHezuo 74700China Department of Biology University of KentuckyLexingtonKY 40506USA Department of Plant and Soil Sciences University of KentuckyLexingtonKY 40506USA

Previous studies indicated that grazing can cause significant changes in abiotic and biotic environment in ***,how these changes impact germination trait selection in grassland has not been well ***,we aimed to explore whether grazing can significantly change germination trait diversity and composition of grasslands *** measured the germination traits of species in the laboratory,and compared their performance in grazed and nongrazed ***,we compared the community-weighted means of germination traits and functional diversity of grazed and nongrazed grasslands based on these germination traits to know whether grazed and nongrazed grasslands differed in their germination trait *** the species level,we found that the changes of abundance in grazed and nongrazed grasslands were not related to species’germination ***,at the community level,compared with nongrazed grasslands,species in the grazed grasslands generally exhibited a higher seed germination ***,seed germination response in grazed grasslands was more positively related to alternating temperature than in nongrazed grasslands,and breadth of the germination temperature niche was narrower in grazed than in nongrazed *** with nongrazed grasslands,seed germination trait diversity was increased and germination trait evenness decreased in grazed *** can change microhabitat conditions,thereby changing germination trait selection by environmental filtering,resulting in a significant difference in germinate trait composition at the community level.

关键词： alpine grassland biodiversity germination trait selection grazing Tibet Plateau

Postoperative chemotherapy with S-1 plus oxaliplatin versus S-1alone in locally advanced gastric cancer(RESCUE-GC study): a protocol for a phase Ⅲ randomized controlled trial

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Chinese Journal of Cancer Research 2017年第2期29卷 144-148页

作者： Xiang Hu Lin Chen Yian Du Biao Fan Zhaode Bu Xin Wang Yingjiang Ye Zhongtao zhang Gang Xiao Fei Li Qingsi He Guoli Li Xian Shen Bin Xiong Liming Zhu Jiwei Liui Lian Liu Tao Wu Jing Zhou Jun zhang Gang Zhao Xulin Wang Pin liang Xinxin Wang Yan zhang Xiaojiang Wu Ji zhang Xin Ji Xianglong zong Tao Fu Ziyu Jia Jiafu Ji Department of Gastrointestinal Surgery the First Affiliated Hospital of Dalian Medical University Dalian 116011 China Deparunent of General Surgery Chinese People's Liberation Army General Hospital Beijing 100853 China Department of Abdominal Surgery Zhejiang Cancer Hospital Hangzhou 310022 China Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing) Center of Gastrointestinal Surgery Peking University Cancer Hospital & Institute Beijing 100142 China Department of General Surgery Peking University First Hospital Beijing 100034 China Department of Gastrointestinal Surgery Peking University People's Hospital Beijing 100044 China Department of General Surgery Beijing Friendship Hospital Capital Medical University Beijing 100050 China Department of General Surgery Beijing Hospital Beijing 100730 China Department of General Surgery Xuanwu Hospital Capital Medical University Beijing 100053 China Department of General Surgery Qilu Hospital of Shandong University Jinan 250012 China Department of General Surgery Nanjing General Hospital Nanjing 210002 China Department of Gastrointestinal Surgery the First Affiliated Hospital of Wenzhou Medical University Wenzhou 325000 China Department of Oncology Zhongnan Hospital of Wuhan University Wuhan 430071 China Department of Medical Oncology Zhejiang Cancer Hospital Hangzhou 310022 China Department of Medical Oncology the First Affiliated Hospital of Dalian Medical University Dalian 116011 China Department of Chemotherapy Qilu Hospital of Shandong University Jinan 250012 China

Background： The ACTS-GC study had shown postoperative adiuvant therapy with S-1 improved survival of patients with locally advanced gastric cancer. Addition of oxaliplatin to S-1 is considered to be acceptable as one of the treatment options for gastric cancer patients after radical gastrectomy with D2 lymph node excision. Methods： We have commenced a randomized phase III trial in December 2016 to evaluate S-I plus oxaliplatin compared with S-1 alone in the adjuvant setting for locally advanced gastric cancer. A total of 564 patients will be accrued from 13 Chinese institutions in two years. The primary endpoint is 3-year relapse-free survival. The secondary endpoints are 5-year overall survival, proportion of patients who complete the postoperative chemotherapy and incidence of adverse events. Ethic and dissemination： The trial has been approved by the institutional review board of each participating institution and it was activated on December, 2016. The enrollment will be finished in December, 2018. Patient＇s follow-up will be ended until December, 2023. Trial registration： ***, identifier： NCT02867839. Registered on August 4, 2016.

关键词： Locally advanced gastric cancer S-1 plus oxaliplatin randomized phase HI trial

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一种基于幅度预测的隐写分析方法

电子学报 2010年第11期38卷 2704-2707页

作者：张良中国民航大学智能信号与图像处理天津市重点实验室天津300300

提出一种基于图像小波系数相关规律性分析及幅度预测的隐写分析方法,首先对小波系数所处局部区域的相关规律性强弱进行定量分析;然后选择规律性较强的局部区域,利用自然图像小波系数在尺度间和尺度内的统计相关性,以及不同图像分量小波... 详细信息

提出一种基于图像小波系数相关规律性分析及幅度预测的隐写分析方法,首先对小波系数所处局部区域的相关规律性强弱进行定量分析;然后选择规律性较强的局部区域,利用自然图像小波系数在尺度间和尺度内的统计相关性,以及不同图像分量小波系数之间存在的相关性,对小波系数的幅度值进行自适应预测;最后通过分析预测误差的统计特性来判断图像中是否含有隐秘信息.实验证明该方法对于小波域信息隐藏具有较好的检测效果.

关键词：图像处理信息隐藏隐写分析小波域幅度预测

Biological origin and depositional environment of crude oils in the Qiongdongnan Basin: Insights from molecular biomarkers and whole oil carbon isotope

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Petroleum Science 2024年第5期21卷 3029-3046页

作者： Zi-Ming zhang Du-Jie Hou Xiong Cheng Da-Ye Chen Gang liang Xia-Ze Yan Wei-He Chen School of Energy Resources China University of GeosciencesBeijing100083China Key Laboratory of Marine Reservoir Evolution and Hydrocarbon Accumulation Mechanism Ministry of EducationBeijing100083China Beijing Key Laboratory of Unconventional Natural Gas Geological Evaluation and Development Engineering Beijing100083China China Coal Research Institute Beijing100013China Exploration and Development Resource Institute Hainan Branch of China National Offshore Oil CorporationHaikou570300HainanChina

Molecular biomarker and whole oil carbon isotope(δ^(13)C_(oil)) analyses were conducted on eleven typical crude oils from the Qiongdongnan Basin to investigate their biological sources and depositional environments. Saturated hydrocarbon biomarkers in most samples are characterized by angiosperm-derived compounds, with aromatic compounds dominated by the naphthalene, phenanthrene, biphenyl, and fluorene series. The related source rocks of these oils were mainly deposited under oxic condition, but a subanoxic-suboxic and enclosed water column condition in the Central Depression during *** identification of simonellite and related compounds in the aromatic fractions provides reliable evidence for the input of coniferous gymnosperms. Cadalene may also have a potential association with gymnosperms since it shows a strong positive correlation with simonellite. Evidence from density, nalkanes, short-chain alkylbenzenes and secondary brine inclusions indicates that the unique crude oil B13-1 may have suffered from thermal alteration. These crude oils(excluding B13-1) can be classified into four types based on the δ^(13)C_(oil)values and molecular biomarkers. Type A oil(solely S34-3) is characterized by non-angiosperm plants, with minor dinoflagellates and increasing contribution from conifer gymnosperms than others. Type B oils(L17-2, L18-1, L25-1, and L25-1W) show heavy δ^(13)C_(oil)(-24 ‰to-25 ‰) and mixed contributions from both angiosperms and marine algae, with the marine algae contribution increasing. Type C oils(L13-2 and B21-1) share similar biological sources with Type B, but the moderately δ^(13)C_(oil)(-25‰ to-26‰) and high level of terrestrial biomarkers suggesting a predominant contribution of angiosperms. Type D oils(Y13-1a, Y13-1b, and Y13-4) possess the lightestδ^(13)C_(oil)(mainly below-26‰) and are primarily derived from angiosperms, with mangrove vegetation playing an important role. Spearman correlation analysis among 14 source biomarker param

关键词： Gas chromatography-mass spectrometry Molecular biomarker Simonellite Biological source Depositional environment

依敦煌本缀理耀州《十王经》新得——兼及相关文献整理方法

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敦煌研究 2022年第5期 120-135页

作者：张总中国社会科学院世界宗教研究所中国社科院敦煌学研究中心北京100732 陕西师范大学人文社会科学高等研究院陕西西安710119

陕西耀州神德寺塔与浙江台州灵石寺塔均发现了敦煌本以外的《十王经》,然而两者相差极大。台州所出五件完整,为白描图写本,耀州编号十余件但均有残破。这些抄出的经本,尤其耀州所出经本与敦煌本关系及价值如何,参照晚期续藏经的内容,的... 详细信息

陕西耀州神德寺塔与浙江台州灵石寺塔均发现了敦煌本以外的《十王经》,然而两者相差极大。台州所出五件完整,为白描图写本,耀州编号十余件但均有残破。这些抄出的经本,尤其耀州所出经本与敦煌本关系及价值如何,参照晚期续藏经的内容,的确不能明晰。本文根据丰富的敦煌本内容,缀合耀州本后,力求理出其经本类型,分析其与敦煌本的差异,比定出其过渡类型、原创元素的状态。

关键词：十王经阎罗王授记经经本类型文献整理

Impacts of atmospheric and oceanic factors on monthly and interannual variations of polynya in the East Siberian Sea and Chukchi Sea

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Advances in Climate Change Research 2021年第4期12卷 527-538页

作者： zhang Yu zhang Yan-Yan XU Dan-Ya CHEN Chang-Sheng SHEN Xin-Yi HU Song CHANG liang ZHOU Xiang-Qian FENG Gui-Ping College of Marine Sciences Shanghai Ocean UniversityShanghai201306China Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai519082China International Center for Marine Studies Shanghai Ocean UniversityShanghai201306China School for Marine Science and Technology University of Massachusetts-DartmouthNew BedfordMA02744USA State Key Laboratory of Estuarine and Coastal Research East China Normal UniversityShanghai200241China

As a key region of Northeast Passage,the polynya along the Siberian coast in the East Siberian and Chukchi Seas is important to local dynamic and thermodynamic processes,sea ice production and marine *** detailed variations of polynya and the contributions of atmospheric and oceanic factors to the polynya have not been explored ***-E satellite data from January to April during the period 2003-2011 were used to study the impacts of wind stress and ocean heat transport on variations of polynya in the East Siberian Sea and Chukchi *** study region was divided into six *** sets of AMSR-E data with resolutions of 6.25 km and 12.5 km were compared based on two algorithms of sea ice concentration(referred to as 6.25 km-IC and 12.5 km-IC)and sea ice thickness(referred to as 6.25 km-h and 12.5 km-h).The monthly and yearly polynya areas in the four cases and six domains had remarkable *** two cases of 6.25 km-h and 12.5 km-h had larger areas of polynya than the other two cases of 6.25 km-IC and 12.5 *** difference in polynya area between the 6.25 km-h and 12.5 km-h cases was much smaller than the difference between the 6.25 km-IC and 12.5 km-IC *** study of atmospheric and oceanic mechanisms on polynya is influenced significantly by the sensitivity of polynya *** general,the impact of wind stress and ocean heat transport on the polynyas had noticeable monthly and interannual variations and was dependent on the locations of the *** alongshore and offshore wind had stronger correlations with the polynya area than ocean heat *** the higher resolution(6.25 km)AMSR-E data are best for the study of atmospheric and oceanic impacts on polynya area,the coarse resolution(12.5 km)AMSR-E data based on sea ice thickness can also be *** direction dominated the polynya area in the East Siberian Sea and wind speed dominated the polynya area in the Chukchi *** variation in ocean heat transpor

关键词： Polynya area AMSR-E Wind Ocean heat transport

Microstructure and phase transformation of as-cast and annealed Mg–4Zn–1Y alloy containing quasi-crystal phase

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Rare Metals 2015年第4期34卷 239-244页

作者： Yang Yang Kui zhang Xing-Gang Li Yong-Jun Li Ming-Long Ma Guo-liang Shi Jia-Wei Yuan State Key Laboratory for Fabrication and Processing of Nonferrous Metals General Research Institute for Nonferrous Metals

By means of optical microscope （OM）, X-ray diffraction （XRD）, scanning electron microscopy （SEM） and transmission electron microscopy （TEM） analyses, the microstructures of as-cast and heat-treated Mg--4Zn-IY （wt%） alloy containing quasi-crystal phase were studied. The microstructure of the as-cast alloy consists of a-Mg solid solution grains, intermetallic particles and eutectic phases （W-phase and 1-phase）, and huge grains with seri- ous dendritic segregation are clearly observed. After heat treatment, phase transformation and dissolution occur in the alloy and many phases remain. When the alloy was treated above 410 ~C, the eutectic phases transform into spherical shape as the I-phase turns to W-phase. After heat treatment for long time, the alloy is over burnt and the W-phase decomposes to Mg-Y binary phase.

关键词： Mg-Zn-Y alloy Heat treatment Microstructure Phase transformation Icosahedral quasi-crystal

Persistent Müllerian duct syndrome in an assisted reproductive patient: a novel variant impairs the biosynthesis and secretion of anti-Müllerian hormone (AMH)

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Asian Journal of Andrology 2023年第4期25卷 534-536页

作者： Qiang Du Chuang Qiu Lu zhang Qing-Yi Wang Kai Hong Xiao-liang Liu Department of Reproduction Shengjing Hospital of China Medical UniversityShenyang 110004China Department of Orthopedics Shengjing Hospital of China Medical UniversityShenyang 110004China Department of Clinical Genetics Shengjing Hospital of China Medical UniversityShenyang 110004China Center for Computational and Integrative Biology Massachusetts General HospitalBostonMA 02114USA Department of Urology Peking University Third HospitalBeijing 100191China

Dear Editor,Persistent Müllerian duct syndrome(PMDS,MIM 261550)is an autosomal recessive inherent disorder of sex development in normally masculinized subjects with Müllerian duct derivatives,including the uterus,fallopian tubes,and upper part of the vagina.1 PMDS is very rare with presentations of bilateral cryptorchidism(55%),unilateral cryptorchidism with contralateral hernia(20%),or transverse testicular ectopia(25%).

关键词： uterus ent transverse

A Promising Anti-Cytokine-Storm Targeted Therapy for COVID-19:The Artificial-Liver Blood-Purification System

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Engineering 2021年第1期7卷 11-13页

作者： Yimin zhang liang Yu LingLing Tang Mengfei Zhu Yanqi Jin Zhouhan Wang Lanjuan Li State Key Laboratory for Diagnosis and Treatment of Infectious Diseases National Clinical Research Center for Infectious DiseasesCollaborative Innovation Center for Diagnosis and Treatment of Infectious DiseasesThe First Affiliated HospitalCollege of MedicineZhejiang UniversityHangzhou 310003China Department of Infectious Diseases Shulan(Hangzhou)Hospital Affiliated to Zhejiang Shuren University Shulan International Medical CollegeHangzhou 310022China

The coronavirus disease 2019(COVID-19)pan-epidemic,resulting from infection with the 2019 novel coronavirus(2019-nCoV),also known as severe acute respiratory syndrome-coronavirus-2(SARS-CoV-2),is currently the source of public health concern worldwide;however,treatment of this infection has been clinically challenging in many patients[1].Importantly,2019-nCoV is the third fatal coronavirus that has emerged in the past two decades,following SARS-CoV and the Middle East respiratory syndrome(MERS)-CoV[2].The numbers of confirmed cases of COVID-19 infection and related deaths are still *** of 9 March 2020.

关键词： Blood respiratory infection