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Detection and indication of 1,3,4-C27-29 triol in the sediment of northern South China Sea

Science China Earth Sciences 2016年第6期59卷 1187-1194页

作者： ZHU XiaoWei MAO ShengYi WU NengYou JIA GuoDong SUN yongge GUAN HongXiang WU DaiDai Key Laboratory of Marginal Sea Geology South China Sea Institute of OceanologyCASGuangzhou 510301China Key Laboratory of Marginal Sea Geology Guangzhou Institute of GeochemistryCASGuangzhou 510640China Key Laboratory of Gas Hydrate Guangzhou Institute of Energy ConversionCASGuangzhou 510640China Department ofGeosciences Zhejiang UniversityHangzhou 310037China Guangzhou Center for Gas Hydrate Research CASGuangzhou 510640China

After the detection of the 1,20,21-C29 long-chain triol in some sediments and freshwater pteridophytes, in this study a new homologous long-chain triol, 1,3,4-C27-29, is detected for the first time in the Site4B core sediment in the northern South China Sea. The hydroxyl location and length of the carbon chain of this newly discovered triol differ from those of 1,20,21-C29 triol. The test results of its molecular distribution and individual carbon isotope reveal that 1,3,4-C29triol has a good correlation with n-C26-30 even carbon-numbered long-chain fatty alcohols, with R2 （n=68） values of 0.905, 0.929 and 0.903, respectively, and its carbon isotope composition, at -32.3%o_1.9%o, is similar to that of rt-C26.30, at -29.13%o^0.87%o, -32.98%o^1.28%o, and -32.98%o^1.28%o. 1,3,4-C29 triol from the Site4B core sediment and terrigenous long-chain fatty alcohol （n-C26.34） show highly consistent distribution trends in the entire section; thus, the former could serve as a proxy indicator of the terrigenous input. Considering that the 1,20,21-C29 triol in previous research belongs to Azolla, which are fresh water pteridophytes, the 1,3,4-C27-29 triol identified in this study might have similar biogenetic derivation. Thus, determination of its biogenic area and growing environment could provide potential organic geochemical evidence supporting the terrigenous input and source in the northern South China Sea.

关键词： Long-chain triol Northern South China Sea Terrigenous input

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The occurrence and significance of C_(25)HBI in Cenozoic saline lacustrine source rocks from the Western Qaidam Basin,NW China

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Chinese Science Bulletin 2011年第13期56卷 1390-1398页

作者： ZHANG YongDong SUN yongge XIE LiuJuan JIANG AiZhu CHAI PingXia State Key Laboratory of Organic Geochemistry Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou 510640 China Department of Earth Science Zhejiang University Hangzhou 310027 China Graduate University of Chinese Academy of Sciences Beijing 100049 China

The saline lacustrine deposit of the Oligocene Lower Ganchaigou Formation is the main source rock for the Western Qaidam Basin,NW *** this study,abundant highly branched isoprenoids with 25 carbon atoms (C25HBI) were detected in the upper section of the Lower Ganchaigou Formation.C25HBI is a biomarker for diatoms,and can provide information regarding biogeochemical processes during production and preservation of sedimentary organic *** carbon isotopic values of C25HBI in these source rocks were in the range of-18‰ to-20‰.The relative enrichment in 13C of C25HBI suggests that these isoprenoids were derived from diatom *** this case,the diatoms used HCO3-as an additional carbon source to dissolved CO2 in water column due to their high biological ***,the diatom blooms indicated an abundant nutrient supply to the environment and high primary ***,the occurrence of 13C-enriched C25HBI could be an ideal marker for good source *** decreased concentration of CO2(aq) in the water column induced by diatom blooms can result in an enrichment in 13C of organic matter synthesized by primary *** may be a possible reason for the occurrence of 13C-enriched organic matter in the Cenozoic source rocks of the Western Qaidam *** studies have shown that the high carbon number n-alkanes sourced from diatoms have no carbon ***,the sources of n-alkanes in regional source rocks are complex,and should be considered when discussing the sources of organic matter in future studies.

关键词：柴达木盆地西部湖相烃源岩中国西北新生代盐水湖生物地球化学过程沉积有机质下干柴沟组

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Factors controlling the enrichment of natural gas in Kuche depression,Tarim Basin,NW China:Molecular geochemical evidence from sedimentary organic matter

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Chinese Science Bulletin 2004年第S1期49卷 66-71页

作者： SUN yongge XIAO Zhongyao LIU Dehan CHAI Pingxia XU Shiping SKLOG Guangzhou Institute of Geochemistry Chinese Academy of SciencesGuangzhou 510640China Tarim Petroleum Exploration and Development Company PetroChinaKuerle 841000China

Using molecular geochemical data from infrared spectrometer and pyrolysis gas chromatography-mass spectrometry, this paper investigates the petroleum generation characteristics of Jurassic coal measures from Kuche depression, Tarim Basin, NW China. The results showed that the Jurassic coaly rocks with medium maturity (R0%: 0.8-1.1) were enriched in gas-prone functionalities (-CH3) and low molecular weight pyrolysates (

关键词： natural gas Jurassic coal measures Kuche depression infrared spectrometer pyrolysis gas chromatography-mass spec-trometry.

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Source and composition of sedimentary organic matter in the head of Three Gorges Reservoir: a multiproxy approach using δ^(13)C,lignin phenols, and lipid biomarker analyses

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Acta Geochimica 2017年第3期36卷 452-455页

作者： He Ding Changfeng Zhu Kai Zhang Shangbin Xiao Xingqian Cui yongge Sun Institute of Environment and Biogeochemistry (eBig) School of Earth Science Zhejiang University College of Hydraulic and Environmental Engineering China Three Gorges University Department of Earth Atmospheric and Planetary ScienceMassachusetts Institute of Technology

A multiproxy approach including bulk organic carbon, δ^(13) C, lignin phenols, and lipid biomarker analyses were applied to characterize the source and composition of sedimentary organic matter in the head part of Three Gorges Reservoir. OM consisted of both natural(autochthonous and allochthonous) and anthropogenic *** natural OM included input from vascular plants,especially non-woody angiosperms. The allochthonous input included plankton and microbial production, likely due to localized eutrophication. Anthropogenic inputs likely derived from petroleum input and/or urban *** anthropogenic inputs were untreated sewage *** influences were concluded to be regionally specific point sources of pollution based on relative distributions and on the fact that molecular characteristics of sedimentary OM were not distributed smoothly along a gradient.

关键词： Three Gorges reservior Sedimentary organic matter δ^13C Lignin phenols Lipid biomarkers

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粒度对注射用头孢哌酮钠舒巴坦钠复溶时间的影响考察

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首都食品与医药 2024年第12期31卷 170-172页

作者：李灵张啸刘永革杨素娟李守申刘秀美北京市房山区食品药品安全监控中心北京102425 山东鲁抗医药股份有限公司山东济宁272021 山东大学药学院山东济南250012

目的考察粒度对注射用头孢哌酮钠舒巴坦钠的复溶时间、装量差异、可见异物、不溶性微粒等项目的影响。方法依照药典方法和探索性方法对原研药和仿制药分别进行相关项目检验,对比分析检验结果。结果原研药和仿制药的药典检验项目均符合规... 详细信息

目的考察粒度对注射用头孢哌酮钠舒巴坦钠的复溶时间、装量差异、可见异物、不溶性微粒等项目的影响。方法依照药典方法和探索性方法对原研药和仿制药分别进行相关项目检验,对比分析检验结果。结果原研药和仿制药的药典检验项目均符合规定,没有显著性差异;复溶时间、粒度分布和颗粒形貌存在显著差异,但未提示与粒度存在相关性。结论此研究未证明粒度与复溶时间、装量差异等检验项目的相关性,但提示粉针剂,尤其是复方粉针剂在生产过程中应当注重对原料药粒径的把控,为国内粉针剂仿制药一致性评价研究和质量控制提供了新的思路和方向。

关键词：注射剂仿制药一致性评价复溶时间粒度分布颗粒形貌注射用头孢哌酮钠舒巴坦钠

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基于科教融合的地震波数值模拟综合实验设计

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科技风 2024年第16期 42-44页

作者：武晔顾观文万永革孙守才防灾科技学院地球科学学院河北三河065201 河北省地震动力学重点实验室河北三河065201 廊坊市地球探测与信息技术重点实验室河北三河065201

将地震数值模拟科学研究转化为地球物理学综合实验,对比研究低速层和水层地质模型情况下地震响应特征的差异。通过“引导—启发—设计—指导”逐层递进式实验教学方法,引导学生大胆提出科学问题,鼓励学生自主设计模型加以对比,并得出结... 详细信息

将地震数值模拟科学研究转化为地球物理学综合实验,对比研究低速层和水层地质模型情况下地震响应特征的差异。通过“引导—启发—设计—指导”逐层递进式实验教学方法,引导学生大胆提出科学问题,鼓励学生自主设计模型加以对比,并得出结论。教学实践表明,在验证性实验的基础上,开设“科教融合”综合实验,有助于培养学生的科学创新思维,有利于提高学生的自主学习能力和分析解决问题能力,为后续开展毕业设计和科研工作奠定良好基础。

关键词：科教融合综合实验数值模拟

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Constraints on the diversity of crude oil types in the Lunnan Oilfield,Tarim Basin,NW China

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Chinese Science Bulletin 2004年第S1期49卷 19-26页

作者： LU Hong JIA Wanglu XIAO Zhongyao SUN yongge PENG Ping’an State Key Laboratory of Organic Geochemistry Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhou 510640China Tarim Research Institute of Exploration and Development of Petroleum China PetroleumKuerle 841000China

Hydrocarbons, include heavy oils, normal oils, waxy oils and light oils, condensate oils and gases were all found in Lunnan Oilfield, the occurrences of hydrocarbons with complicated physical properties indicates a complicated distribution of reservoirs. By the drilling data, the distribution pattern had been found that, in plan view, the density of crude oils in the western part is heavier than that of oils in the eastern part in Lunnan region, namely the crude oils were mainly found in the western part while the natural gases were mainly found in the eastern, which shows that an obvious differentiation in the east and west part was presented in the Lunnan region. Furthermore, in vertical view, the light hydrocarbons were mainly found in the Carboniferous reservoir while the heavier hydrocarbons were mainly found in the Ordovician and Triassic reservoirs. By analysis of the semi-logarithm distribution of n-alkanes, biomarker ratios and stable carbon isotopic compositions of crude oils, we have found

关键词： mixing differentiation in eastern and western part oil family light oil high waxy oil semi-logarithm distribution of n-alkanes.

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Application of fuzzy clustering method to determining sub-fault planes of earthquake from aftershocks sequence

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Earthquake Science 2012年第2期25卷 187-196页

作者： Fuchang Wang yongge Wan Huirong Cao Zhitong Jin Qingqing Ren The Institute of Disater Prevention of China Earthquake Administration Sanhe 065201 China College of Mathematics and Information Science Langfang Teachers＇ College Langfang 065000 China

Earthquake rupture process generally involves several faults activities instead of a single fault A new method using both fuzzy clustering and principal component analysis makes it possible to reconstruct three dimensional structure of involved faults in earthquake if the aftershocks around the active fault planes distribute uniformly. When seismic events are given, the optimal faults structures can be determined by our new method. Each of sub-fault planes is fully characterized by its central location, length, width, strike and dip. The resolution determines the number of fault segments needed to describe the earthquake catalog. The higher the resolution, the finer the structure of the reconstructed fault segments. The new method successfully reconstructs the fault segments using synthetic earthquake catalogs. By taking the 28 June 1992 Landers earthquake oceured in southern California as an example, the reconstructed fault segments are consistent with the faults already known on geological maps or blind faults that appeared quite frequently in longer-term catalogs.

关键词： fault plane solution small earthquake clustering fuzzy clustering principal componentanalysis Landers earthquakes

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Advance on stochastic dynamics/nonlinear and stochastic dynamics

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Theoretical & Applied Mechanics Letters 2023年第4期13卷 249-250页

作者： Yong Xu yongge Li Stefano Lenci Northwestern Polytechnical University School of Mathematics and Statistics at the Northwestern Polytechnical University Polytechnic University of Marche Technical Committee Multibody System and Nonlinear Dynamics of ASME Italian Association for Theoretical and Applied Mechanics(AIMeTA)

Nonlinear and stochastic dynamics is essential and practical in almost all branches of natural science and *** has been a central subject to understand various complex dynamics,such as random vibration,stochastic transition,synchronization,et al.,in the areas of mechanical and aerospace engineering,physics and *** example,the stochastic resonance has been utilized effectively in mechanical fault diagnosis and weak signal ***,many methods have been developed to get the stochastic responses,including stochastic averaging method.

关键词： method. stochastic dynamics

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Experimental study and evaluation on hydrocarbon generation of macerals

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Chinese Science Bulletin 2000年第14期45卷 1270-1276页

作者： LIU Dehan ZHANG Huizhi DAI Jinxing SHENG Guoying XIAO Xianming SUN yongge SENG Jiagui Guangzhou Institute of Geochemistry Chinese Academy of SciencesGuangzhou 510640China Research Institute of Petroleum Exploration and Development Beijing 100083China

Some typical coal and maceral samples are selected for oil and gas-generatingsystematic thermal simulation experiments, Rock-Eval, GC and GC-MS analyses. Results cause productivity curves of extracts and gaseous, light, liquid as well as total hydrocarbon. Effects of macerals and maturation on hydrocarbon productivities and compositions are synthetically discussed. Evaluation indexes and plan on coal-generated oil and gas in bituminous coal rank are suggested according to the data from experiments and analyses.

关键词： coal maceral simulation experiment coal-generated oil and gas evaluation on coal-generated hydrocarbon.

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