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Paleo-oil reservoir pyrolysis and gas release in the Yangtze Block imply an alternative mechanism for the Late Permian Crisis

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Geoscience Frontiers 2022年第2期13卷 125-138页

作者： Chengyu Yang Meijun Li Zhiyong Ni Tieguan Wang Nansheng Qiu ronghui fang Long Wen State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum(Beijing)College of GeosciencesChina University of Petroleum(Beijing)Beijing 102249China Key Laboratory of Exploration Technologies for Oil and Gas Resources(Yangtze University) Ministry of EducationCollege of Resources and EnvironmentYangtze UniversityWuhanHubei 430100China Oil&Gas Survey China Geological SurveyBeijing 100083China The Key Laboratory of Unconventional Petroleum Geology China Geological SurveyBeijing 100083China Exploration and Development Research Institute of Southwest Oil&Gas Field Company PetroChinaChengduSichuan 610041China

The causes of the global mass extinction that occurred around the Permian-Triassic boundary have been widely studied through the geological record and in various *** results show that volcanic activity was a key factor in initiating the crisis during the Late *** to other thermal events triggered by volcanic activity,pyrolysis of petroleum in Pre-Permian reservoirs has rarely been suggested as a significant source of the greenhouse gases that caused the mass *** this study,geochemical analysis is carried out of a huge paleo-oil reservoir in the Yangtze Block(YB),South *** detection of mineral inclusions and pyrobitumens is evidence of rapid pyrolysis of accumulated oil in the Ediacaran *** evidence from hydrothermal minerals and the presence of domain mesophase in the pyrobitumen suggest that the pyrolysis process occurred abruptly and that greenhouse gases were rapidly released through venting *** dating of such a complex geological event in this old and deeply buried reservoir is inevitably difficult and potentially ***,cross-validation of the multiple evidence sources,including hydrothermal minerals and domain mesophase,indicates that the rapid oil pyrolysis must have been driven by a major thermal *** of burial and thermal histories suggests that the thermal event was most likely to have been triggered by the Emeishan Large Igneous Province(ELIP),which was in a period of significant volcanic activity during the Late *** volumes of gases,including methane,carbon dioxide,and possibly hydrogen sulfide,were released,causing a significant increase in greenhouse gases that may have contributed to global warming and the resulting mass extinction during the Late Permian Crisis(LPC).

关键词： Oil reservoir pyrolysis Hydrothermal fluid Emeishan Large Igneous Province Gas release Mass extinction

Oil maturity assessment using maturity indicators based on methylated dibenzothiophenes

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Petroleum Science 2014年第2期11卷 234-246页

作者： Li Meijun Wang T.-G Shi Shengbao Zhu Lei fang ronghui State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum College of Geosciences China University of Petroleum

Aromatic fractions of 140 oils and condensates that originated from different types of source rocks （marine shale,terrestrial shale and marine carbonate） were analyzed using gas chromatographymass spectrometry （GC-MS） to investigate the relative distributions of methylated dibenzothiophenes with respect to thermal *** positions of methyl groups of trimethyldibenzothiophene isomers （TMDBTs） including those used in the definition of maturity indicator TMDBT index in previous studies were firmly identified by co-elution of internal standards in GC-MS analysis and by comparing with reported retention indices.A new maturity ratio related to dimethyldibenzothiophenes （DMDBTs） is proposed on the basis of the differences in thermodynamic stability among different DMDBT *** maturity index （TMDBT-I2） based on TMDBTs is also suggested on the basis of our empirical observations and presumed thermodynamic stability of TMDBT *** two newly proposed （2,6 ＋ 3,6）-/1,4-DMDBT ratio and TMDBT-I2 correlate well with MDR （4-/1-methyldibenzothiophene）and 2,4-/1,4-DMDBT ratios,suggesting their common chemical reaction mechanisms and similar behavior with increasing ***,they can be effectively applied for maturity ***,the TMDBTs related maturity parameters are more reliable for over-mature oils and condensates due to the relatively higher concentrations of thermodynamically unstable TMDBT isomers,i.e.1,4,6-,1,4,8-and 3,4,6-TMDBT in this study than those of 1-methyldibenzothiophene （1-MDBT） or 1,*** contrast with 4,6-/1,4-DMDBT,the newly proposed （2,6 ＋ 3,6）-/1,4-DMDBT ratios for oils that originated from different types of source rocks have approximately same relationship with the oil maturity （Rc %）.This suggests that the lithology and organic facies may have relatively less influence on （2,6 ＋ 3,6）-/1,4-DMDBT ratio compared to 4,6-/1,*** maturity parameters based on methylated dibenzothiophenes are particularl

关键词： Dibenzothiophene maturity indicator molecular thermodynamic stability sedimentaryorganic matter

An innovative classification system for ranking the biological effects of marine aromatic hydrocarbons based on fish embryotoxicity

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Acta Oceanologica Sinica 2024年第6期43卷 153-162页

作者： ronghui Zheng Chao fang Fukun Hong Min Zhang Fulong Gao Yusheng Zhang Jun Bo Key Laboratory of Marine Ecological Conservation and Restoration Third Institute of OceanographyMinistry of Natural ResourcesXiamen 361005China Observation and Research Station of Coastal Wetland Ecosystem in Beibu Gulf Ministry of Natural ResourcesBeihai 536015China

Petroleum hydrocarbon pollution is a global concern,particularly in coastal *** aromatic hydrocarbons(PAHs) are regarded as the most toxic components of petroleum *** this study,the biomonitoring and ranking effects of petroleum hydrocarbons and PAHs on the marine fish model Oryzias melastigma embryos were determined in the Jiulong River Estuary(JRE) and its adjacent waters in *** results showed that the levels of petroleum hydrocarbons from almost all sites met the primary standard for marine seawater quality,and the concentrations of the 16 priority PAHs in the surface seawater were lower compared with those in other coastal areas worldwide.A new fish expert system based on the embryotoxicity of ***(OME-FES) was developed and applied in the field to evaluate the biological effects of petroleum hydrocarbons and *** selected physiological index and molecular indicators in OME-FES were appropriate biomarkers for indicating the harmful effects of petroleum hydrocarbons and *** outcome of OME-FES revealed that the biological effect levels of the sampling sites ranged from level Ⅰ(no stress) to level Ⅲ(medium stress),which is further corroborated by the findings of nested analysis of variance(ANOVA) *** results suggest that the OME-FES is an effective tool for evaluating and ranking the biological effects of marine petroleum hydrocarbons and *** method may also be applied to evaluate other marine pollutants based on its framework.

关键词： petroleum hydrocarbons polycyclic aromatic hydrocarbons fish expert system integrated biomarker response nested one-way analysis of variance

Mitigating growth-stress tradeoffs via elevated TOR signaling in rice

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Molecular Plant 2024年第2期17卷 240-257页

作者： Wei Li Jiaqi Liu Zeqi Li Ruiqiang Ye Wenzhen Chen Yuqing Huang Yue Yuan Yi Zhang Huayi Hu Peng Zheng Zhongming fang Zeng Tao Shiyong Song ronghui Pan Jian Zhang Jumim Tu Jen Sheen Hao Du State Key Laboratory of Rice Biology College of Agriculture and BiotechnologyZhejiang UniversityYu-Hang-Tang Road No.866Hangzhou 310058China ZJU-Hangzhou Global Scientific and Technological Innovation Center Zhejiang UniversityHangzhou 311215China Hainan Institute of Zhejiang University Sanya 572025China National Key Laboratory of Plant Molecular Genetics CASCenter for Excellence in Molecular Plant SciencesShanghai lnstitute of Plant Physiology and EcologyChineseAcademy of SciencesShanghai 200032China Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region(Ministry of Education) College of Agricultural SciencesGuizhouUniversityGuiyang 550025China State Key Laboratory of Rice Biology and Breeding China National Rice Research InstituteHangzhou 311400China Department of Molecular Biology and Center for Computational and Integrative Biology Massachusetts General Hospitaland Department of GeneticsHarvard Medical SchoolBostonMA02114USA

Rice production accounts for approximately half of the freshwater resources utilized in agriculture,result-ing in greenhouse gas emissions such as methane(CH4)from flooded paddy *** address this chal-lenge,environmentally friendly and cost-effective water-saving techniques have become widely adopted in rice ***,the implementation of water-saving treatments(WsTs)in paddy-field rice has been associated with a substantial yield loss of up to 50%as well as a reduction in nitrogen use efficiency(NUE).In this study,we discovered that the target of rapamycin(TOR)signaling pathway is compromised in rice under *** profiling-coupled transcriptome sequencing(polysome-seq)analysis unveiled a substantial reduction in global translation in response to WST associated with the downregulation of TOR ***,biochemical,and genetic analyses revealed new insights into the impact of the positive TOR-S6K-RPS6 and negative TOR-MAF1 modules on translation repression under ***,ammonium exhibited a greater ability to alleviate growth constraints under WsT by enhancing TOR signaling,which simultaneously promoted uptake and utilization of ammonium and nitrogen *** further demonstrated that TOR modulates the ammonium transporter AMT1;1 as well as the amino acid permease APP1 and dipeptide transporter NPF7.3 at the translational level through the 5'untranslated ***,these findings reveal that enhancing TOR signaling could mitigate rice yield penalty due to WST by regulating the processes involved in protein synthesis and *** study will contribute to the breeding of new rice varieties with increased water and fertilizer utilization efficiency.

关键词： target of rapamycin TOR water-saving rice low-carbon agriculture drought nitrogen use efficiency NUE

Trimming Behavior of H_2-Loaded Silica Fiber Modeled by Rate Equations

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光学学报 2003年第S1期23卷 96-97页

作者： Lin Li, Haiwen Cai, Kan Gao, ronghui Qu, and Zujie fang (Shanghai Institute of Optics and Fine Mechanics, CAS, P. R. China) Shanghai Institute of Optics and Fine Mechanics CAS P. R. China

Photosensitivity behavior of H2-loaded silica fiber was modeled by rate equations for activated particles. The theoretical deductions give a close explanation to experimental phenomena on post-exposure growth in fiber... 详细信息

关键词： of be on UV by Trimming Behavior of H2-Loaded Silica Fiber Modeled by Rate Equations into

Influence of thermal effect on multi-junction GaInP/GaAs/Ge concentrating photovoltaic system

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Chinese Optics Letters 2010年第4期8卷 354-356页

作者：徐钦峰叶青瞿荣辉方祖捷 Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences

The influence of thermal effect on the energy conversion efficiency of concentrating photovoltaic system for multi-junction GaInP/GaAs/Ge thin-film solar cell is analyzed *** the increment of operation temperature,the maximal energy conversion efficiency and optimal loaded resistor will be *** the condition of operation temperature lower than 90℃.this influence of thermal effect is very ***,when the operation temperature exceeds 90℃,the maximal conversion efficiency of the cells will decrease sharply,and contrarily the corresponding optimal loaded resistor will increase *** the system performance will degenerate badly and a thermal management will be necessary.

关键词： Energy conversion Optimization Photovoltaic effects Resistors Solar energy Solar power generation

A Novel Fiber Bragg Grating with Triangular Spectrum and Its Application in Strain Sensor

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光学学报 2003年第S1期23卷 787-788页

作者： Rui Huang, Yingwu Zhou, Guowei Sun, ronghui Qu, Zujie fang Shanghai Institute of Optics and Fine Mechanics, CAS, P. R. China Shanghai Institute of Optics and Fine Mechanics CAS P. R. China

A novel fiber Bragg grating with triangular spectrum is presented. A strain sensor based on this fiber grating is proposed. Experiments showed that the sensor has advantages of high sensitivity, wider measuring range ... 详细信息

关键词： FBG on et be in with A Novel Fiber Bragg Grating with Triangular Spectrum and Its Application in Strain Sensor

Study on the DOP of Output Pulse in Optical Fiber Transmission Systems

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光学学报 2003年第S1期23卷 65-66页

作者： Yingwu Zhou Lingwei Guo Rui Huang ronghui Qu Zujie fang (Shanghai Institute of Optics & Fine Mechanics,The Chinese Academy of Sciences,P.R.C. Shanghai Institute of Optics and Fine Mechanics The Chinese Academy of Sciences P. R. C.

In this paper the expression of the output pulse Stokes vector is derived based on the Jones matrix model proposed by *** et al. The basic properties of degree of polarization (DOP) for output pulse are investigated.

关键词： optical fiber communication system polarization mode dispersion degree of polarization.

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笼型转子无刷双馈电机的电磁分析和等效电路

电工技术学报 2005年第9期20卷 19-23,28页

作者：邓先明姜建国方荣惠中国矿业大学信息与电气工程学院徐州221008

无刷双馈电机是一种适用于变频调速的新型感应电机,其结构和工作原理与普通交流电机不同。本文分析了具有笼型转子电机的基本电磁关系,提出了用电动势来等效机械负载的新频率折算方法。在此基础上,建立了一个通用的等效电路模型,它不仅... 详细信息

无刷双馈电机是一种适用于变频调速的新型感应电机,其结构和工作原理与普通交流电机不同。本文分析了具有笼型转子电机的基本电磁关系,提出了用电动势来等效机械负载的新频率折算方法。在此基础上,建立了一个通用的等效电路模型,它不仅适用于电动状态下的特性分析,而且适用于对发电机的分析。利用该等效电路,对电机的特性进行了分析和仿真。仿真和实验结果的一致性,证明了本文提出的电路模型和计算方法的正确性。

关键词：无刷双馈电机电磁分析折算频率等效电路