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Science China Earth Sciences 2010年第6期53卷 844-853页

作者： WenHui liu DianWei Zhang Bo Gao ming Fan Exploration and Production Research Institute Sinopec Beijing 100083 China

There are natural gas sources of various modes of occurrence in superimposed basins. Besides the conventional kerogen and ancient oil reservoir, dispersed soluble organic matter (DSOM) is an important direct gas source. Because of its wide distribution, great potential to generate gas and proneness to crack under catalysis, DSOM is an important type of gas source in the highly evolved zones in marine strata. Through the geological and geochemical analysis that reflects the long-period evolvement and multiple gas accumulation processes in marine strata, and using the ternary geochemical tracing system, here we study the origin and accumulation of the natural gas in the Hotan River Gas Field in the Tarim Basin. The natural gas is produced from highly evolved and cracked DSOM in the Hotan River Gas Field, and it is accumulated after migrating for a long distance along faults. This conclusion is of great significance to the further expansion of the oil and gas exploration fields in the Tarim Basin.

关键词： dispersed soluble organic matter (DSOM) cracking gas Hotan River Gas Field carbon isotopic composition geological tracing system

Pairing and Quantum Double of Finite Hopf C~*-Algebras

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Acta Mathematica Sinica,English Series 2007年第6期23卷 1121-1128页

作者： ming liu Li Ning JIANG Guo Sheng ZHANG Department of Mathematics Beijing Institute of Technology Beijing 100081 P. R. China

This paper defines a pairing of two finite Hopf C^＊-algebras A and B, and investigates the interactions between them. If the pairing is non-degenerate, then the quantum double construction is given. This construction yields a new finite Hopf C^＊-algebra D（A, B）. The canonical embedding maps of A and B into the double are both isometric.

关键词： Hopf C^*-algebra pairing quantum double GNS representation

Incorporating Triggering and Environmental Factors in the Analysis of Earthquake-Induced Landslide Hazards

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International Journal of Disaster Risk Science 2014年第2期5卷 125-135页

作者： ming Wang Min liu Saini Yang Peijun Shi State Key Laboratory of Earth Surface Processes and Resource Ecology Beijing Normal UniversityBeijing 100875China Academy of Disaster Reduction and Emergency Management Beijing Normal UniversityBeijing 100875China

Pingwu County of Sichuan Province was severely hit by the 12 May 2008 Wenchuan Earthquake and experienced widely distributed earthquake-induced *** proposed an integrated method that incorporates landslide triggering factors embedded in the Newmark displacement computation and other environmental factors,expressed as lithology,land-use type,vegetation cover(Normalized Difference Vegetation Index,NDVI),elevation,and profile and plan curvature,in the analysis of earthquake-induced landslide hazards in the study *** earthquake-induced landslide inventory of this area was obtained by visual interpretation of two highresolution SPOT-5 images before and after the *** used GIS tools to generate an equal number of landslide and non-landslide cell samples in a 30-m grid map,and assigned triggering and environmental variables to each cell.A logistic regression model was built to investigate the occurrence of earthquake-induced *** results show that Newmark displacement(in which triggering factors are embedded)and lithology(as an environmental factor)were the two dominant variables controlling landslide *** environmental factors,including NDVI,land-use type,and elevation,also significantly affected landslide ***81.2%correctness was achieved in the regression *** results confirm the predictive power of our method,which integrates both triggering and environmental factors in modeling earthquake-induced landslides.

关键词： earthquake Earthquake curvature

The Role of Processing Solvent on Morphology Optimization for Slot-Die Printed Organic Photovoltaics

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Chinese Journal of Polymer Science 2023年第6期41卷 842-850,I0005页

作者： Lei Wang Jun-Zhe Zhan Wen-Kai Zhong Lei Zhu Guan-qing Zhou Tian-Yu Hao Ye-Cheng Zou Zhen-Hua Wang Gang Wei Yong-ming Zhang Feng liu School of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China Frontiers Science Center for Transformative Molecules Center of Hydrogen ScienceSchool of Chemistry and Chemical EngineeringShanghai Jiao Tong UniversityShanghai200240China State Key Laboratory of Fluorinated Functional Membrane Materials and Dongyue Future Hydrogen Energy Materials Company Zibo 256401China

The morphology manipulation of the active layers is important for improving the performance of organic photovoltaics(OPVs).The choice of processing solvent has great impact on the crystallization and phase separation during film formation,since solvent properties,including solvent effect on molecular crystallization,boiling point,and interaction parameters,can directly change the evolution pathways associated with thermodynamics and ***,revealing the underlying solvent-regulated morphology mechanism is potential to provide guiding strategies for device *** this study,chloroform,chlorobenzene,and toluene are used to process PM6:Y6 blends by slot-die printing to fabricate OPV *** chloroform printed film forms a fibrillar network morphology with enhanced crystallization,facilitating exciton dissociation,charge transport and extraction,resulting in an optimal power conversion efficiency of 16.22%.However,the addition of the additive chloronaphthalene in chloroform solution leads to over-crystallization of Y6,and thus,increasing domain size that exceeds the exciton diffusion length,resulting in lower device *** addition,both the chlorobenzene and toluene suppress the crystallization of Y6,which drastically decreased short-circuit current and fill *** results demonstrate the important role of processing solvent in dictating film morphology,which critically connects with the resultant printed OPV performance.

关键词： crystallization chloroform film

Development of a KASP Marker on Chromosome A05 for Seed Oil Content of Brassica napus

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Agricultural Science & Technology 2024年第2期25卷 13-17页

作者： YANG Qian LI Bao GUO Yi-ming liu Xin-hong WANG Tong-hua Crop Research Institute of Hunan Province Changsha 410125PRC Yuelushan Laboratory Changsha 410128PRC

In order to identify the molecular markers that can be widely used in the breeding of Brassica napus *** with high seed oil content under different genetic backgrounds,we developed a Kompetitive Allele Specific PCR(KASP)marker for seed oil content on the basis of the results from available *** verification in the F2 population showed that the marker was closely linked to the quantitative trait locus(QTL)for oil content on chromosome *** findings helped to breed the‘Fengyou’varieties with high seed oil content in the middle reaches of the Yangtze River.

关键词： Brassica napus L. Seed oil content Kompetitive Allele Specific PCR(KASP)marker

Iron Extraction From Oolitic Iron Ore by a Deep Reduction Process

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Journal of Iron and Steel Research International 2011年第8期18卷 9-13页

作者： LI Ke-qing NI Wen ZHU ming ZHENG Mei-juan LI Yuan Key Laboratory of the Ministry of Education of China for High-Efficient Mining and Safety of Metal Mines University of Science and Technology Beijing Beijing 100083 China

A laboratory experiment was carried out to extract iron from oolitic iron ore by a deep reduction and magnetic separation technique. The raw coal with fixed carbon of 66.54% was used as the reductant. The iron was successfully extracted from the oolitic iron ore which otherwise is nearly impossible to be separated due to its extremely fine-grain and mosaic nature. The results showed that an iron recovery rate of 90.78% and an iron content of 92.53~ of iron concentrate could be obtained by such a technique. The optimized roast temperature is 1 200℃ and time is 60 min. The subsequent magnetic separation was performed by using a magnetic field intensity of 111 kA · m^-1 and a grinding fineness less than 45 μm of 96. 19% for the sintered product.

关键词： oolitic hematite deep reduction magnetic separation

脉冲磁场对稀土AZ91D镁合金凝固组织及性能的影响

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铸造 2024年第1期73卷 68-75页

作者：来昊民白庆伟田迎春许鹏梁忠刘昕旸内蒙古科技大学材料与冶金学院内蒙古包头014010 内蒙金属材料研究所内蒙古包头014034

研究了脉冲磁场对稀土AZ91D镁合金凝固组织及力学性能的影响。研究表明:在AZ91D镁合金中加入适量稀土La有利于晶粒细化,形成新的稀土针状化合物Al_(2)La;在AZ91D-0.75La合金凝固过程中施加脉冲磁场处理后,针状化合物Al_(2)La长度更加短... 详细信息

研究了脉冲磁场对稀土AZ91D镁合金凝固组织及力学性能的影响。研究表明:在AZ91D镁合金中加入适量稀土La有利于晶粒细化,形成新的稀土针状化合物Al_(2)La;在AZ91D-0.75La合金凝固过程中施加脉冲磁场处理后,针状化合物Al_(2)La长度更加短小,甚至趋于球化;同时,AZ91D-0.75La合金的凝固组织和力学性能得到进一步改善,当脉冲占空比为20%、频率为20 Hz时,合金的处理效果最好,晶粒尺寸从156.3μm下降至103.5μm,细化了33.78%,维氏硬度也从HV 53.8增加至HV 69.4。

关键词：稀土镁合金脉冲磁场凝固组织析出相

维普期刊数据库博看期刊

血管内碎石术在非ST段抬高型急性冠状动脉综合征合并钙化病变患者经皮冠状动脉介入治疗术中的有效性和安全性

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中国心血管病研究 2024年第2期22卷 167-171页

作者：晋辉孙红蕾韦艳王中明曾辉刘静周庆庆尹遇冬郑海军河南省焦作市人民医院心内科焦作市心肌微循环医学重点实验室河南省焦作市454002 焦作市煤业集团中央医院心内科

目的观察血管内碎石术(intravascular lithotripsy,IVL)在非ST段抬高型急性冠状动脉综合征(non-segment elevation acute coronal syndrome,NSTE-ACS)合并钙化病变患者经皮冠状动脉介入治疗(percutaneous coronary intervention,PCI)术中的临床疗效。方法回顾性分析2022年10月至2023年4月期间在焦作市人民医院和焦作市煤业集团中央医院接受IVL治疗的所有患者。收集患者的人口统计学特征、临床数据、手术操作具体数据及相关并发症,观察IVL的有效性和安全性。结果43例患者在此期间接受IVL辅助PCI,年龄(67.77±7.21)岁。76.7%的患者为不稳定型心绞痛,23.3%的患者为急性非ST段抬高型心肌梗死患者。26例(60.5%)为原位病变,11例(25.6%)为支架内再狭窄,6例(13.9%)为支架膨胀不全“补救”治疗。手术成功率为100%。支架植入/DCB后狭窄率为(3.372±4.040)%,最小管腔面积为(9.416±0.940)mm^(2)。围术期有1例患者出现慢血流,围术期主要心血管不良事件(MACE)发生率为16.7%,均为手术相关性心肌梗死,共7例。术后30 d无MACE发生。结论IVL是一种安全有效的修饰冠状动脉钙化以实现支架充分膨胀的新方法。

关键词：经皮冠状动脉介入治疗冠状动脉钙化血管内碎石术冠状动脉原位病变支架内再狭窄

Two new diterpene alkaloids from Delphinium chrysotrichum

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Chinese Chemical Letters 2007年第5期18卷 545-547页

作者： Yang qing He Xiao Mei Wei Yi Li Han Li ming Gao Department of Applied Chemistry Xi＇ an University of Technology Xi＇ an 710054 China Department of Chemistry Key Laboratory of Polymer Materials of Gansu Province Northwest Normal University Lanzhou 730070 China

Chemical investigation on the ethanol extract from the whole plants of Delphinium chrysotrichum resulted in the isolation of two new diterpene alkaloids named delphatisine A （1） and delphatisine B （2）, respectively. The structures of the new compounds were deduced on the basis of their spectral data （IR, HREIMS, EIMS, 1 D, 2D-NMR）. This is the first report on the isolation of diterpenoid alkaloids from the D. chrysotrichum.

关键词： Delphinium chrysotrichum Diterpene alkaloids Delphatisine A Delphatisine B

Avoidance of parasitized host by female wasps of Aphidius gifuensis (Hymenoptera:Braconidae):The role of natal rearing effects and host availability?

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Insect Science 2018年第6期25卷 1035-1044页

作者： ming-Zhen Pan Tong-Xian liu Christian Nansen Key Laboratory of Integrated Pest Management in Crops Ministry of Agriculture /Institute of Plant ProtectionChinese Academy of Agricultural SciencesSine-American Biological Control LaboratoryBeijingChina State Key Laboratory of Crop Stress Biology for Arid Areas and Key Laboratory of Northwest Loess Plateau Crop Pest Management of Ministry of AgricultureNorthwest A and F UniversityYanglingShaanxiChina Department of Entomology and Nematology University of California DavisCAUSA

Natal rearing experience of animals may affect their behaviors,such as habitat selection and oviposition *** part of the overall fitness of insect parasitoids, successful host discrimination (distinguishing parasitized hosts from unparasitized hosts) is of paramount *** this study we examined whether and how parasitoids' natal rearing experience would affect their host discrimination ability according to host *** established separate colonies ofAphidius gifuensis Ashmead by continual rearing on two hosts,Sitobion avenae E and Myzuspersicae (Suzler),and quantified self superparasitism and self superparasitism versus parasitism ratio for the four:combinations ofparasitoid colonies and host species (*** and ***)at four host densities (30,50,100 or 150 per plant).Results showed that self superparasitism *** by *** reared on *** was significantly higher than by those reared on ***,no matter whether the host densities were 30,50,100 or *** gifuensis reared on *** significantly superparasitized more *** than those reared on *** only when host density was *** superparasitism versus parasitism ratio of *** from both colonies was always lower on natal hosts than on new hosts,and the difference was more pronounced as the host density *** results suggested that natal rearing effects is important on host discrimination and oviposition decision of the parasitoid *** effects promoted the parasitoid's host adaptation and made them confer greater fitness.

关键词： host discrimination Myzus persicae self superparasitism Sitobion avenae