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Influence of lithospheric thickness distribution on oil and gas basins,China seas and adjacent areas

Acta Oceanologica Sinica 2024年第4期43卷 1-14页

作者： Jing Ma Wanyin Wang Hermann Zeyen Yimi Zhang zhongsheng li Tao He Dingding Wang School of Geology Engineering and Geomatics Key Laboratory of Western China’s Mineral Resources and Geological Engineering of Ministry of EducationChang’an UniversityXi’an 710054China UMR8148 GEOPS CNRS/UniversitéParis-SaclayDépartement des Sciences de la TerreBât.50491405France CNOOC Research Institute Co. Ltd.Beijing 100027China Qingdao Institute of marine geology Qingdao 266071China Department of Earth Sciences Memorial University of NewfoundlandSt.John’sNewfoundland AlB3X5Canada University of Naples Federico Ⅱ Department of Earth SciencesNaples80138Italy

The distribution of oil and gas resources is intricately connected to the underlying structure of the ***,investigating the characteristics of lithospheric thickness and its correlation with oil and gas basins is highly *** research utilizes recently enhanced geological–geophysical data,including topographic,geoid,rock layer thickness,variable rock layer density,and interface depth *** the principles of lithospheric isostasy and heat conduction,we compute the laterally varying lithospheric thickness in the China seas and adjacent *** these results,two pivotal parameters for different types of oil and gas basins were statistically analyzed:the minimum lithospheric thickness and the relative fluctuation in lithospheric thickness.A semiquantitative analysis was used to explore the connection between these parameters and the hydrocarbon abundance within the oil and gas *** study unveils distinct variations in lithospheric thickness among basins,with oil and gas rich basins exhibiting a thicker lithosphere in the superimposed basins of central China and a thinner lithosphere in the rift basins of eastern ***,the relative fluctuations in lithospheric thickness in basins demonstrate significant disparities:basins rich in oil and gas often exhibit greater thickness ***,in the offshore basins of China,a conspicuous negative linear correlation is observed between the minimum lithospheric thickness and the relative fluctuation in lithospheric *** study posits that deep-seated thermal upwelling results in lithospheric undulations and extensional thinning in oil and gas ***,sustained deep-seated heat influences sedimentary materials in basins,creating favorable conditions for oil and gas *** insights derived from this study contribute to a quantitative understanding of the intricate relationships between deep lithospheric structures and oil and gas basins.

关键词： China seas and adjacent areas lithospheric thickness oil and gas basins

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灵台县百里林场森林抚育补贴项目实施现状问题及对策

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南方农业 2024年第6期18卷 200-202页

作者：刘鹏李中生灵台县百里林场甘肃灵台744400

森林抚育是改善森林环境、促进林木生长、培育健康稳定的森林生态系统、提高林分质量、实现林业可持续发展的重要举措,是森林培育的重要组成部分。为给今后高质量开展森林抚育工作提供更有力的技术保障和科技支撑,总结甘肃省灵台县百里... 详细信息

森林抚育是改善森林环境、促进林木生长、培育健康稳定的森林生态系统、提高林分质量、实现林业可持续发展的重要举措,是森林培育的重要组成部分。为给今后高质量开展森林抚育工作提供更有力的技术保障和科技支撑,总结甘肃省灵台县百里林场基本情况,分析存在的问题,提出加大国家重点生态修复项目支持力度;解决思想保守、观念陈旧问题;编制行之有效的抚育作业设计方案;加强基层专业人员的技能培训;提高补贴标准,增强工作的积极性等对策。

关键词：森林抚育补贴项目灵台县百里林场

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高温环境对防弹插板抗弹性能影响分析

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兵器装备工程学报 2024年第2期45卷 94-99页

作者：聂嘉兴程时雨李忠盛黄安畏郭峰林禹李鹏吴永鹏中国兵器工业第五九研究所重庆400039

采用M80弹(7.62 mm×51 mm NATO)分别对常温和高温(55℃)下的防弹插板进行实弹射击试验,以研究高温环境对防弹插板抗弹性能的影响。通过分析试验时防弹插板弹击瞬间凹陷值,同时结合聚氨酯树脂的剥离强度、超高分子量聚乙烯纤维层压板剥... 详细信息

采用M80弹(7.62 mm×51 mm NATO)分别对常温和高温(55℃)下的防弹插板进行实弹射击试验,以研究高温环境对防弹插板抗弹性能的影响。通过分析试验时防弹插板弹击瞬间凹陷值,同时结合聚氨酯树脂的剥离强度、超高分子量聚乙烯纤维层压板剥离强度和弯曲强度的测试结果对高温下抗弹性能变化原因进行了研究。结果表明:高温下防弹插板抗弹性能明显下降,相对于常温下每发弹的弹击瞬间凹陷值增加了2~5 mm。其主要原因是超高分子量聚乙烯纤维层压板在高温下抵抗变形的能力发生明显下降,从而导致防弹插板的弹击瞬间凹陷值增大。

关键词：防弹插板弹击瞬间凹陷值高温环境超高分子量聚乙烯纤维层压板

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Endless recrystallization of high-entropy alloys at high temperature

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Journal of Materials Science & Technology 2022年第33期128卷 71-81页

作者： Qingfeng Wu Zhijun Wang Feng He zhongsheng Yang Junjie li Jincheng Wang State Key Laboratory of Solidification Processing Northwestern Polytechnical UniversityXi’an 710072China

In traditional physical metallurgy,once recrystallization occurs,it will proceed to 100%along with time even at relatively low temperatures,resulting in the limited thermal stability of partially recrystallized ***,we proposed the strategy of achieving the endless recrystallization state at high temperature(~0.6T_(m))in high entropy alloys for the first *** partially recrystallized microstructures remained stable after annealing at 700℃ for 1440 h toward endless recrystallization with kinetics *** from the ultra-thermostable heterostructures,the alloy exhibited excellent mechanical properties of~1.6 GPa tensile strength at room temperature and~1.1 GPa tensile strength at 600°C even after exposure at 700℃ for 720 *** kinetics of recovery,recrystallization,grain growth,and precipitate coarsening were quantitatively analyzed to uncover the mechanisms of endless *** results revealed that the stable state of 50%recrystallization at 700℃ can be attributed to the precipitates inhibited recrystallization and the continued recovery decreased stored energy in the non-recrystallized ***,the grain size was stable in the recrystallized regions due to the strong pinning effect of the intergranular precipitates with slow coarsening *** findings created a brand-new state of endless recrystallization with the combination of recovery and recrystallization,which can significantly broaden the service temperature range of heterogeneous materials.

关键词： Endless recrystallization High-entropy alloy Partial recrystallization Thermal stability High-temperature mechanical properties

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激光拉曼技术评价沉积有机质热成熟度

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石油学报 2016年第9期37卷 1129-1136页

作者：王民 li zhongsheng 中国石油大学非常规油气与新能源研究院山东青岛266580 Energy Group Commonwealth Scientific and Industrial Research Organisation

在澳大利亚联邦科学与工业研究组织能源组对激光拉曼技术评价有机质成熟度研究成果RaMM(1)和RaMM(2)的基础上,提出了可以评价沉积有机质热成熟度的激光拉曼技术新模型RaMM(P),模型使用范围为0.4% 详细信息

在澳大利亚联邦科学与工业研究组织能源组对激光拉曼技术评价有机质成熟度研究成果RaMM(1)和RaMM(2)的基础上,提出了可以评价沉积有机质热成熟度的激光拉曼技术新模型RaMM(P),模型使用范围为0.4%

关键词：拉曼光谱分散有机质热成熟度镜质体惰质体

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Army-Materiel-System-Analysis-Activity Maturity Projection Model Based on a Subsystem Stein Estimator

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Journal of Donghua University(English Edition) 2020年第5期37卷 436-445页

作者： li zhongsheng FAN Jinwei PAN Ri Beijing Key Laboratory of Advanced Manufacturing Technology Beijing University of TechnologyBeijing 100124China

A reliability-growth test is often used to assess complex systems under ***-growth models are usually used to quantify the achievable reliability indices and predict the expected reliability *** Crow army-materiel-system-analysis-activity(Crow-AMSAA)projection model and the AMSAA maturity projection(AMPM)-Stein model are suitable for modelling delayed corrective *** AMPM-Stein model,which involves more failure data and requires limited assumptions,is more robust than the Crow-AMSAA projection ***,the rationality of the Stein factor introduced in the AMPM-Stein model has always been *** AMPM-Stein extended projection model,derived from data regrouping based on similar failure mechanisms,is presented to alleviate the *** study demonstrated that the proposed model performed well,the prediction results were credible,and the robustness of the proposed model was ***,the Stein-shrinkage factors,which are derived from components with similar inherent failure mechanisms,are easier to understand and accept in the field of *** example shows that the proposed model is more suitable and accurate than the Crow-AMSAA model and the AMPM-Stein model,by comparing the projection values based on the failure data of the previous phases with the actual values of the current *** study provides a technical basis for extensive applications of the proposed model.

关键词： reliability projection army-materiel-system-analysis-activity maturity projection model(AMPM) Stein estimator subsystem

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Reconstruction of Probability Density Function for Gamma Distribution

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Journal of Donghua University(English Edition) 2020年第4期37卷 327-333页

作者： FAN Jinwei li zhongsheng TIAN Bin Beijing Key Laboratory of Advanced Manufacturing Technology Beijing University of TechnologyBeijing 100124China Neijiang Jinhong Crankshaft Co. Ltd.Neijiang 641000China

The probability distributions of small sample data are difficult to determine,while a large proportion of samples occur in the early failure period,so it is particularly important to make full use of these data in the statistical *** on gamma distribution,four methods of probability density function(PDF)reconstruction with early failure data are proposed,and then the mean time between failures(MTBF)evaluation expressions are concluded from the reconstructed *** theory analysis and an example show that method 2 is the best evaluation method in dealing with early-failure-small-sample *** reconstruction methods of PDF also have certain guiding significance for other distribution types.

关键词： small sample probability density function(PDF) gamma distribution early failure mean time between failures(MTBF)

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Effect of Temperature and Grain Boundary on Void Evolution in Irradiated Copper:A Phase-Field Study

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Acta Metallurgica Sinica(English Letters) 2024年第9期37卷 1621-1632页

作者： Qionghuan Zeng Yiming Chen zhongsheng Yang Yunhao Huang Zhijun Wang Junjie li Jincheng Wang tate Key Laboratory of Solidification Processing Northwestern Polytechnical UniversityXi’an710072China Science and Technology On Reactor Fuel and Materials Laboratory Nuclear Power Institute of ChinaChengdu610213China

The continued existence of high-energy radiation in nuclear reactors at high temperatures results in the formation of radiation-induced voids,which will further lead to inevitable swellings of polycrystalline structural components and thus premature failures.A deep understanding of the effect of temperature and grain boundary on void evolution in irradiated copper is significant for preventing this kind of ***,the phase-field method was employed to study void evolution in irradiated copper under different temperatures and grain *** results show that,due to the different sensitivities of point defect production rate and vacancy diffusion rate to temperature changes,both the nucleation-growth rate and the coarsening rate during void evolution increase first and then decrease with increasing temperature;moreover,the nucleation mechanism exhibits site-saturated nucleation at low temperatures while continuous nucleation at high *** presence of grain boundary can accelerate the emergence of void because grain boundaries can absorb more interstitials than *** finer the grain size,the stronger inhibitory effect of grain boundaries on the growth rate of void,due to the formation of void denuded zone near grain *** high temperatures,the growth rate of void in fine grains is significantly reduced due to the increase of vacancy diffusion rate and the enhancement of sink effect of grain boundary on vacancy.

关键词： Void evolution Phase-field method Temperature Grain boundary

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Safety Study of Flunixin Meglumine Injection on Target Animal Dogs

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Animal Husbandry and Feed Science 2015年第5期7卷 303-307页

作者： Feng Xiujuan li zhongsheng Nanjing Policedog Institute of the Ministry of Public Security

The study was conducted to evaluate the safety of Flunixin meglumine injection on target animal dogs, and to provide a scientific basis for the dose selec- tion of clinical application. A total of 24 healthy Springer Spaniels were randomly divided into four groups. Intramuscular injection of Flunixin meglumine was carried out to test group dogs with the doses of 2 rag/kg, 6 rag/kg, 10 mg/kg for 5 days, respectively. The injected doses were one times, three times and five times as the recommended clinical dose. Intramuscular injection of water was carried out to control group dogs for 5 days. Clinical symptom was observed after the injection, and the blood was collected at different times （before, during and after the injection） to conduct blood routine examination and blood biochemical indexes measurement. Post-mortem examination and histopathological examination were carried out after the test. The results indicated that test dogs showed normal spirit, with no death and no other adverse reactions. Part values of blood routine examination indexes and blood biochemical indexes in test groups showed significant differences between pre-administration and post-administration, but basically fluctuated within the reference range. Autopsy results showed no obvious pathological changes. Histological examination showed the viscera and tissues （liver, heart, spleen, lung, kidney） in high dose group and control group showed no abnormality and pathological changes. The results indicated that Flunixin meglumine injection with the dose of 2 - 10 rag/kg had a minimal effect on physiological and biochemical indexes of dog blood.

关键词： Flunixin meglumine Injection Dog Target animals Safety

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An effective strategy for dendrite free li metal anodes:Nickel foam decorated with high lattice-matching CoN and CoF_(2) nanosheets for dense deposition

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Nano Research 2024年第5期17卷 4069-4078页

作者： Wenlong liu Jianzong Man Xiaodong Sun Ning Zhang Yehong Du Kun liu zhongsheng Wen Song li Juncai Sun Institute of Materials and Technology Dalian Maritime UniversityDalian 116026China Shandong Provinvial Key Laboratory of Chemical Energy Storage and Novel Cell Technology and School of Chemistry and Chemical enginneringLiaocheng UniversityLiaocheng 252000China Department of Public Security Management Liaoning Police CollegeDalian 116036China

The notorious dendrite and infinite volume change seriously restrict the advancement of lithium metal anodes(LMAs),during the long-term process of stripping/***,the nanosheets of metal fluoride(CoF_(2))and metal nitride(CoN)with magnificent lithiophilicity on the nickel(Ni)foam are designed as the“regulator”to uniform the li plating and build stronger solid electrolyte interface(SEI)layer for dendrite free *** Ni foam offers abundant space to receive deposited li *** CoN nanosheets can guarantee the fast transfer of electrons,which provides a stable interface of li^(+)***,the nanosheet structure with lithiophilicity would accelerate the move of li+and decrease the nucleation barrier,due to the high lattice-matching of li and ***,the CoF_(2) could increase the content of F(liF)in the SEI layer,which enhances the strength and avoids the destruction of SEI *** the cooperation of CoN and CoF_(2),the composited anode(li/NF@CNCF)exhibits ultra-long cycle performance(more than 1200 h)and fantastic structure stability at 1 mA·cm^(-2) with 1 mAh·cm^(-2).Based on the liFePO_(4) and li/NF@CNCF,the full cells deliver excellent specifical capacity and steady coulombic *** strategy contributes an effective approach to alleviate the issues of lithium metal anodes in the field of LMAs.

关键词： CoN and CoF_(2) lattice-matching nanosheet lithiophilicity lithium metal anodes

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