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Accumulation mechanism of mantle-derived helium resources in petroliferous basins, eastern China

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Science China Earth Sciences 2022年第12期65卷 2322-2334页

作者： Xiaofeng WANG Quanyou liU Wenhui liU Dongdong ZHANG xiaofu li Dong ZHAO State Key Laboratory of Continental Dynamics Department of GeologyNorthwest UniversityXi’an 710069China State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development Beijing 100083China Institute of Energy Peking UniversityBeijing 100871China Petroleum Exploration and Production Research Institute SINOPECBeijing 100083China

A series of marginal-sea basins and fault-depression basins were formed in eastern China under the background of subduction of the West Pacific *** types of helium-rich natural gas reservoirs(He>1000 ppm,1 ppm=1μmol mol^(-1))have been found in these basins:helium-rich CO_(2)gas reservoirs,helium-rich N_(2)gas reservoirs,and helium-rich hydrocarbon gas *** on the analysis of gas geochemical data,the source and accumulation mechanism of helium in these heliumrich natural gas reservoirs were ***-rich natural gas has relatively high 3He/4He ratios(0.88-4.91 Ra,average 2.82 Ra).The ^(3)He/^(4)He ratio characteristics of mantle xenoliths and mantle-derived CO_(2)gas reservoirs indicate that the helium in these helium-rich natural gas reservoirs is mainly mantle-derived(>70%).The original mantle volatile is mainly CO_(2)with a low helium concentration(Helium in the gas reservoir is mainly related to the dissolution and mineralization of CO_(2).During this process,the CO_(2)/3He ratio decreases from 2×10^(9)to approximately 2×10^(6).As CO_(2)dissolves and mineralizes,the concentration of conservative gases(He and N_(2))increases in the remaining CO_(2)gas proportionally to the loss of CO_(2).Large amounts of carbonate minerals,such as dawsonite,which are relatively enriched in 13C,are found in CO_(2)reservoirs in eastern *** relative enrichment of^(12)C in residual CO_(2)gas is important evidence of the dissolution and mineralization of CO_(2).The relative abundance of mantle-derived helium and N_(2)gas increases thousands of times during the dissolution and mineralization of CO_(2),which is the main accumulation mechanism of mantle-derived helium-rich CO_(2)gas reservoirs and helium-rich N_(2)gas ***-rich gas from the mantle is mixed with alkane gas generated by organic matter in the sedimentary basin to form helium-rich hydrocarbon gas reservoirs.

关键词： Mantle-derived helium ^(3)He/4He ratio,Helium resources,Helium-rich natural gas,Accumulation mechanism

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Replacement Strategy for Aged Transformers Based on Condition Monitoring and System Risk

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电力系统自动化 2013年第17期37卷 64-71页

作者： Dabo ZHANG Wenyuan li xiaofu XIONG 1.StateKeyLaboratoryofPowerTransmissionEquipment&SystemSecurityandNewTechnology ChongqingUniversityChongqing400030China~2.BCHydroVancouverV6B5R3Canada

This paper presents a replacement strategy for an aged transformer based on condition monitoring and system risk. The condition monitoring measurements are used to estimate the insulation age of the transformer. The unavailability because of transformer aging failure is calculated using the insulation age instead of the traditional natural age. The system risk is assessed using the total unavailability from both aging and repairable failures. The expected damage cost and benefit due to delaying the replacement of the transformer are evaluated. The best replacement timing is determined as the year when the replacement of the transformer reaches the maximum net benefit. A case study for two aged transformers in a utility system demonstrates the effectiveness of the proposed method.

关键词：系统风险替换策略状态监测变形金刚老年老化故障风险评估变压器

Reflectivity Measurement of Weak Fiber Bragg Grating (FBG)

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Journal of Wuhan University of Technology(Materials Science) 2012年第6期27卷 1177-1179页

作者：郭会勇 ZHENG Yu TANG Jianguan li xiaofu YU Haihu WEN Hongqiao JIANG Deshcng National Engineering Laboratory of FOS Technology Wuhan University of Technology

One method based on the end-face reflection as a reference was used to measure weak grating reflectivity of 0.01%-1%. For measuring ultra-weak grating reflectivity, the grating group with an identical wavelength was used. By using anhydrous alcohol and deionized water as the reflecting medium, the single- pulse FBG reflectivity of a highly doped-Ge photosensitive fiber was calculated to be about 0.747% and 0.739%, respectively; and the single-pulse FBG reflectivity of ordinary SMF fiber was about 0.016% and 0.015%, respectively. The consistent results by the two different reflecting media showed that the end-face reflection method on the grating group was feasible.

关键词： reflectivity measurement weak FBG end-face reflection

Neutron Star Magnetic Field at Finite Temperature

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近代物理研究所和兰州重离子加速器实验室年报：英文版 2005年第1期 24-25页

作者： Wang Qingwu,Lüxiaofu, Zuo Wei and li Xiguo

We study the effects of temperature on the magnetic field of neutron star under relativistic mean field theory. The field is produced under the assumption that the photon has gained its mass in dense nuclear matters. We have computed the field at several temperatures and get a right order of magnitude. We also conclude that a cooler neutron star has a stronger magnetic field. We work in the framework of the nonlin-

关键词：有限温度中子星磁场相对论平均场理论光子

Significance of Golgi Protein 73, Alpha-Fetoprotein and Vascular Endothelial Growth Factor Expression in Diagnosis of Primary Hepatic Cancer

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Journal of Cancer Therapy 2015年第13期6卷 1145-1150页

作者： Xinfeng li xiaofu li Wenrui Zhou Gaoxiong Wang Wei Wang Department of Hepatobiliary Surgery Second Affiliated Hospital of Fujian Medical University Quanzhou China Postdoctoral Research Station Shanghai University of Finance and Economics Shanghai China

Aim: We measured Golgi protein73 (GP73), alpha-fetoprotein (AFP), and vascular endothelial growth factor (VEGF) expression in primary hepatic cancer (PHC) and assessed their clinical significance. Methods: Forty-five PHC and tumor-adjacent specimens and 14 normal liver specimens were examined. GP73, AFP, and VEGF expression was measured via immunohistochemistry and a correlation of protein expression with clinical pathology of PHC was suggested. Results: GP73, AFP, and VEGF expression was significantly higher in PHC and tumor-adjacent tissue compared to tumor-adjacent tissue (0.143 ± 0.018 vs. 0.124 ± 0.027, 0.116 ± 0.026 vs. 0.098 ± 0.014, and 0.126 ± 0.027 vs. 0.092 ± 0.016, respectively;all p 0.088 ± 0.029, 0.098 ± 0.014 vs. 0.073 ± 0.011, and 0.092 ± 0.016 vs. 0.076 ± 0.018, respectively;all p linical stage and serum AFP. VEGF expression was positively correlated with tumor size, nodules, portal vein tumor thrombus, and clinical stage, but not with the degree of tumor differentiation and serum AFP. Expression of GP73 and VEGF was greater than that of AFP in PHC (both p < 0.05). Conclusion: GP73 is highly expressed in PHC and may be a diagnostic marker. Combined detection of GP73, AFP, and VEGF is helpful for diagnosis of PHC.

关键词： Golgi Protein 73 Alpha-Fetoprotein Vascular Endothelial Growth Factor Expression

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高职院校物流管理课程教学方法改革探讨

中国市场 2008年第2期 152-153页

作者：李肖夫无锡职业技术学院

教学方法是完成教学任务、实现教学目的的关键。物流管理课程教学方法改革是我院物流管理课程建设的一个重要内容。本文总结分析教学方法改革的指导思想、主要的教学方法、基本要求。

关键词：高职院校物流管理教学方法改革

中美DSB争端案件研究(2001—2013)

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北京理工大学学报（社会科学版） 2014年第4期16卷 137-143页

作者：李晓郛福建省人民检察院福州350001

考察12年来中美在DSB的争端案件,美国是最积极申诉中国的WTO成员,而中国对美国的申诉案件数量有限且集中于贸易救济措施。WTO争端解决机制以规则为导向,不要求强制执行DSB裁决报告,建议中国更加积极地通过DSB解决中美争端、缓解美国对... 详细信息

考察12年来中美在DSB的争端案件,美国是最积极申诉中国的WTO成员,而中国对美国的申诉案件数量有限且集中于贸易救济措施。WTO争端解决机制以规则为导向,不要求强制执行DSB裁决报告,建议中国更加积极地通过DSB解决中美争端、缓解美国对中国的压力。应诉时注意加强证据的准备工作,执行DSB裁决报告时从实用角度出发,同时构建协调机制,并做好重新定位中国国际经济法学的理论研究工作。

关键词：争端解决机制国家利益规则导向

LEGISLATIVE REVIEW ON GENE EDITING IN CHINA

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China Legal Science 2021年第1期9卷 38-64页

作者： li xiaofu Institute of China Free Trade Zone Law of East China University of Political Science and Law

At present,there is no special legislation on gene editing in China,and the relevant provisions and rules are scattered;the specific concept is not *** the prevention principle will affect the risk and benefit of human reproductive interventions,it is necessary to pay attention to the risk of gene editing on the health of offspring in *** is suggested that new biotechnology regulatory programs should be introduced in China and international supervision and cooperation should be *** focus should be on the process of using gene editing technology to create products rather than the products *** order to maximize the contribution of gene technology to human beings,it should carry out human embryo research under ethical norms.

关键词：基因编辑人类胚胎伦理规范预防原则人类生殖后代健康具体概念相关条文

悬浮红细胞储存时间对妇科患者输血不良反应的影响

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中国输血杂志 2017年第8期30卷 917-919页

作者：杨博李肖甫郑州大学第三附属医院输血科河南郑州450052

目的研究悬浮红细胞储存时间对妇科患者输血不良反应的影响。方法选取本院妇科住院输注悬浮红细胞的患者,将患者输注红细胞储存时间均≤14 d者纳入新鲜组,输注红细胞储存时间均>14 d者纳入陈旧组,分析2组患者输血后不良反应的发生率及... 详细信息

目的研究悬浮红细胞储存时间对妇科患者输血不良反应的影响。方法选取本院妇科住院输注悬浮红细胞的患者,将患者输注红细胞储存时间均≤14 d者纳入新鲜组,输注红细胞储存时间均>14 d者纳入陈旧组,分析2组患者输血后不良反应的发生率及输血后血液相关指标的差异。结果陈旧组不良反应率(2.45%),新鲜组不良反应率(1.32%),差异有统计学意义;陈旧组非溶血性发热反应率(1.42%),新鲜组非溶血性发热反应率(0.66%),差异有统计学意义;陈旧组过敏性输血反应率(1.03%),新鲜组过敏性输血反应率(0.66%),差异无统计学意义。输血后2组的电解质、血凝分析指标差异无统计学意义,陈旧组总胆红素明显高于新鲜组,差异有统计学意义。结论悬浮红细胞的储存时间对于妇科患者的输血不良反应发生有明显影响:输入储存时间长的悬浮红细胞(>14 d)使得患者更容易发生FNHTR,输入储存时间长的悬浮红细胞(>14 d)会增加患者溶血的风险并降低红细胞输注效果。

关键词：输血不良反应非溶血性发热反应过敏性输血反应红细胞贮存损伤