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New records of Jurassic petrified wood in Jianchang of western liaoning,China and their palaeoclimate implications

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Science China Earth Sciences 2015年第12期58卷 2154-2164页

作者： TIAN Ning XIE AoWei WANG YongDong JIANG ZiKun li liqin YIN YaLei ZHU ZhiPeng WANG JiaJia College of Palaeontology Shenyang Normal University State Key Laboratory of Palaeobiology and Stratigraphy Nanjing Institute of Geology and Palaeontology Chinese Academy of Sciences Key Laboratory for Evolution of Past life in Northeast Asia Ministry of Land and Resources Nanjing Institute of Geology and Palaeontology Chinese Academy of Sciences Key Laboratory of Economic Stratigraphy and Palaeogeography Chinese Academy of Sciences Chinese Academy of Geological Sciences

Diverse and rich fossil wood records have been documented from the Mesozoic of liaoning Province, NE China. The Tiaojishan Formation(mainly distributed in Beipiao, Chaoyang, Fuxin and Jianchang regions) is one of the most significant horizons for the Jurassic petrified wood in liaoning Province. Previously, wood fossils of this formation were mainly reported in Beipiao and Chaoyang regions, whereas fossil wood record was merely known in Jianchang region. Here we describe new fossil wood specimens from the Tiaojishan Formation in Jianchang County, western liaoning. Two fossil wood taxa, i.e., Protaxodioxylon jianchangense Tian et Wang sp. nov. and Xenoxylon peidense Zheng et Zhang were recognized on the basis of anatomical features. These fossil wood records add new data for understanding the fossil wood diversity, floral composition and palaeoclimate of the Tiaojishan Formation. The occurrence of Xenoxylon and Protaxodioxylon implies a cool temperate, wet and seasonal climate condition with interannual variations during the Middle to Late Jurassic transition in western liaoning region.

关键词： fossil wood Xenoxylon Protaxodioxylon Middle to Late Jurassic palaeoclimate Tiaojishan Formation western liaoning

End-Triassic storm deposits in the lacustrine Sichuan Basin and their driving mechanisms

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Science China Earth Sciences 2024年第7期67卷 2383-2400页

作者： Jianli ZENG Tingshan ZHANG Mihai Emilian POPA Yongdong WANG Xi ZHANG liqin li Yuanyuan XU Ning LU Xiaoqing ZHANG School of Geoscience and Technology Southwest Petroleum University Chengdu 610500China Sichuan Key Laboratory of Natural Gas Geology Southwest Petroleum University Chengdu 610500China Faculty of Geology and Geophysics Doctoral Schoolof Geology Laboratory of Palaeontology University of Bucharest.Bucharest 010041Romania Nanjing Institute of Geology and Palaeontology Chinese Academy of Sciences Nanjing 210008China University of Chinese Academy of Sciences NanjingNanjing 210008China University of Chinese Academy of Sciences Beijing 100049China

Storm deposits or tempestites are event sequences formed by storms,requiring at least a water temperature of 26.5℃.While inland lakes are unlikely to form storm deposits because of their limited width and water *** Upper Triassic Xujiahe Formation in the Sichuan Basin is a set of coal-bearing,clastic sequences with dominant sedimentary facies varying from braided river delta to lacustrine settings,with storm deposits widely *** the Zilanba of Guanyuan area,in situ tree trunks on a palaeosol surface in Member Vof the Xujiahe Formation provide new evidence of a storm *** fallen-down directions of nine in situ tree trunks were predominant in the NW direction,contrary to the palaeocurrent direction of the underlying strata,suggesting that the southeasterlies prevailed during the end-Triassic in the northern Sichuan *** mud clasts were frequently recorded in sandstones of the Xujiahe Formation,as well as in the Xindianzi *** mud clasts showed a rip-up or a plastic deformation with upside-down V-shapes,were capped on an erosional surface,showed no transport traces and were therefore interpreted as a storm lag *** megamonsoonal climate prevailed during the Late Triassic,although the megamonsoons themselves could not generate a storm deposition in the Xujiahe Formation due to its low maximum surface wind *** driving mechanism for generating storm deposits in the Xujiahe Formation is suggested to be tropical cyclones over the Tethys Ocean moving eastward,further landfalling on the western margin of the Sichuan *** of storm events in the circum-Tethys region show a widespread storm surge in low latitudes during the *** storm deposits at the top of the Xujiahe Formation represent a sedimentary response to the end-Triassic hyperthermal event.

关键词： Sichuan Basin End-Triassic Xujiahe Formation Storm deposits

HPV16E7-HSP70 Hybrid DNA Vaccine Induces E7-Specific Cytotoxic T Cells and Antitumor Immunity

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Wuhan University Journal of Natural Sciences 2006年第3期11卷 749-755页

作者： ZHU liqin li Hui XIONG Jinhu WANG Tongxiang OU Xuan WEI Yun WU Xinxing Institute of Virology Medical School Wuhan University Wuhan 430071 Hubei China

Using human papillomavirus type 16 （HPV16） E7 as an antigen and Heat Shock Protein 70 as adjuvant, we constructed a DNA vaccine by linking HSP70 gene to E7^C91G; gene. Mice, after being immunized with E7^C91G;-HSP70, E7^C91G/HSP70, E7^C91G, and wild E7 DNA vaccines respectively, produced E7 specific CD8^＋ T-cell precursor frequencies of 280.33±2.52, 144.34±4.04, 164.34±5.13 and 82.33±3.51 respectively within every 1 × 10^5 mouse splenocytes. This proves that E7^C91G-HSP70 fusion vaccine can significantly enhance the E7 specific cellular immunity within the mice body（p〈0. 01）. After being immunized with E7^C91G-HSP70 fusion vaccine, tumor-bearing mice of the group being treated have significantly longer latency and survival periods, comparing with other three categories of E7 vaccines. Experiment shows that this vaccine has a significant effect on enhancing E7 positive tumor-treatment within mice body. After being immunized with E7^C91G-HSP70 vaccine, there were no pathological changes found in livers, kidneys and spleens of the mice, which proves that the vaccine is quite safe. After all, E7^C91G-HSP70 fusion vaccine has a much stronger tumor- treatment effect than thai of wild type E7 DNA vaccine.

关键词： human papillomavirus type 16 (HPV16) E7 gene DNA vaccine cellular immunity

CoS_(2)/N,S co-doped mesoporous carbon with 3D micro-nano crosslinked structure as efficient bifunctional oxygen electrocatalysts for zinc-air batteries

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Chinese Chemical Letters 2023年第5期34卷 604-609页

作者： Wei Wang liqin li Jie Ouyang Jialin Gong Jie Tian liang Chen Junlin Huang Binhong He Zhaohui Hou Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials School of Chemistry and Chemical EngineeringHunan Institute of Science and TechnologyYueyang 414006China Guangxi Key Laboratory of Low Energy Material Guangxi Normal UniversityGuilin 541004China Hubei Key Laboratory of Pollutant Analysis&Reuse Technology Hubei Normal UniversityHuangshi 435002China Hunan Province Key Laboratory of Materials Surface&Interface Science and Technology Material Science and Engineering SchoolCentral South University of Forestry and TechnologyChangsha 410004China

This work describes a bifunctional oxygen catalyst made of cobalt disulfide encapsulated in N,S codoped mesoporous carbon with a novel three-dimensional micro-nano crosslinking *** proposed composite materials exhibit promising oxygen electrocatalytic activity and *** composite assembled rechargeable zinc-air battery can achieve a high power density of 208.9 m W/cm^(2),and can be stably cycled for more than 160 ***,the all-solid zinc-air battery assembled with the electrocatalyst also performs *** micro-nano crosslinking and high porosity structure,as well as the large number of active sites generated by the synergy of N,S doping and the close interface between carbon matrix and CoS_(2),contribute to the composite's exceptional electrochemical *** study's rational strategy lays the path for the development of other high-performance bifunctional electrocatalysts.

关键词： Micro-nano crosslinked CoS_2 ORR OER Zn-air battery

Research on the Reasonable Strategy of the Development of Commercial Banks under the Perspective of P2P Internet Financial Risks

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International Journal of Technology Management 2015年第9期 40-42页

作者： li liqin Xi'an International University Xi'an 710077China

In this paper, we conduct research on the reasonable strategy of the development of commercial banks under the perspective of P2P Internet financial risks. P2P financial model mainly for China＇ s small and medium enterprises and individuals to provides financing services. Generally need to use e-commerce professional network platform lending to help both sides to establish lending relationship and complete the related formalities. Traditional commercial banks need reform to keep up with the novel financial tools related to the Internet financing which will be discussed below.

关键词： Reasonable Strategy Commercial Banks P2P Internet Financial Risk Measurement.

Study on the Application of Network Teaching Platform to the Teaching of Course Management Science -Xi＇an International University Is Taken for Example

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International Journal of Technology Management 2016年第1期 4-6页

作者： li liqin Xi'an International University Xi'an Shaanxi 710077 China

In the teaching of course Management Science, how to effectively make use of network teaching platform is a very important reform. How will be the best effect achieved？ On the basis of the network teaching platform system available from Xi＇ an International University and also by combining with the teaching situation of course Management Science, the existing problems are analyzed and also the related suggestions are proposed, in order to achieve a better teaching effect.

关键词： Network Teaching Platform Management Science

The discovery of Jurassic plants in Shenzhen of Guangdong, southern China and related significance

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Chinese Science Bulletin 2014年第19期59卷 3630-3637页

作者： Yongdong Wang Xiangwu Wu Xiaoju Yang Wei Duan liqin li Nanjing Institute of Geology and Palaeontology Chinese Academy of Sciences Shenzhen Mesozoic Culture Communication Co. LTD

Investigations of major marine and non-marine geologic and biotic events across the Triassic-Jurassic transition rely predominantly on detailed stratigraphic frameworks and biodiversity analyses. The alternating sequences of marine and terrestrial Triassic-Jurassic formations in Guangdong Province represent one of the most remarkable coal-bearing series in southern China. The Lower Jurassic Jinji Formation is widely distributed in Guangdong, with continuously outcropped sections and rich marine and non-marine fossil fauna. However, as little research has been conducted on fossil plant remains in the Jinji Formation, it is difficult to understand the systematics,diversity, and floral aspects of the Jurassic. Here we report on the recent collection of rich fossil plants from the Jinji Formation in the Dapeng area of Shenzhen, southern Guangdong Province. Our studies demonstrate taxonomical affiliations, preservation status, and diversity features of these plant fossils, which are marked by the close association of densely preserved, pinnae and rachis connected leaves, and the bennettitalean reproductive organs of Williamsoniella, which may represent an Early Jurassic plant community dominated by Otozamites of the *** work not only represents the first discovery of fossil plants in the Shenzhen area, but is also the first documentation of Jurassic plants in Guangdong and the Pearl River Delta regions. Research related to these plant fossils will be helpful in the correlation of the Early Mesozoic coal-bearing strata in Guangdong, and will provide a deeper understanding of variations in plant diversity of the Triassic and Jurassic transition in southern China. Additionally, it will provide terrestrial plant evidence for explorations in Jurassic palaeoecology, palaeoclimatology,and palaeogeography of southern China.

关键词：植物化石深圳地区中国南部广东省侏罗纪多样性分析动物群化石地层格架

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Countryside,Rocky Road for Home Appliances

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China's Foreign Trade 2009年第11期000卷 28-29页

作者： Guo liqin,li Zhen

For 10 years,the most valuable household appliance in herdsman Chao Lu's home in north China's Inner Mongolia was the 14-inch TV set,purchased when he earned about RMB 4,000(US$580) a year, reported by Xinhua.'I could... 详细信息

关键词：家电市郊坎坷液晶显示器电视机锡林郭勒人民币内蒙古

The Effect of Plant Growth Regulator and Active Charcoal on the Development of Microtubers of Potatoes

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American Journal of Plant Sciences 2012年第11期3卷 1535-1540页

作者： Maolin Peng Xiyao Wang liqin li College of Agronomy Sichuan Agricultural University Chengdu China.

With the detoxicated seedling of a potato cultivation breed named “Mire” as the material, the effect of auxins CCC, 6-BA, and active carbon to microtubers of potato (Solanum tubersum L.) was investigated under the in-vitro circumstances. The result indicated the exogenous auxins improved the production and quality of microtubers of potatoes. The effect of induction can be described as CCC > CCC + 6-BA > 6-BA > CK, the number of microtubers in per flask is 8.17 > 7.67 > 7.29 > 5.46, and the number of large potatoes in per flask is 6.33 > 5.17 > 3.17 > 1. In addition, by adding 0.5‰ of active charcoal, the growth period was shortened from 25.0 days to 9.33 days on average, and the amount of larger potatoes increased 8.54%. These results benefited the growth of microtubers of potato.

关键词： Plant Growth Regulators Active Charcoal Microtubers of Potato