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| 1 | Tectonic Evolution of the Tianhuan Depression and the Western Margin of the Late Triassic Ordos显示文摘The Ordos Basin is one of the most important oil and gas basins in China. Based on surface outcrop, key exploratory wells and seismic reflection data and by using the technology of 'prototype basin recovery', seismic profile 'layer flattening' and 'restoration of balanced section',and other methods, the sedimentary boundary, structure and the evolution history of the Tianhuan depression on the western margin of the Ordos Basin are reestablished. The following results have been obtained. (1) The west boundary of the Late Triassic Ordos Basin was far beyond the scope of the current basin. The basin is connected with the Late Triassic Hexi Corridor Basin, and its western margin did not have tectonic characteristics of a foreland basin. (2) The Tianhuan depression was first formed in the Late Jurassic. At the late stage it was impacted by the late Yanshanian and Himalayan tectonic movement and the depression axis gradually moved eastwards to the present location with a cumulative migration distance of ~30 km. (3) Eastward migration of the depression axis caused adjustment and even destruction of the originally formed oil and gas reservoirs, so that oil and gas remigrated and aggregated, resulting in secondary structural reservoirs formed at high positions on the western flank of the depression. | LI Xiangbo LIU Huaqing WANYAN Rong WEI Lihua LIAO Jianbo FENG Ming MA Yuhu BAI Yunlai | 2009 | Acta Geologica Sinica(English Edition)2009，83，6： | 9 |
| 2 | Mechanism of Gravity Effect on Solidification Microstructure of Eutectic Alloy显示文摘The influence of gravity on the solidification microstructure of Al-AI_3Ni eutectic alloy was investigated by using a 50-m-long drop tube.It was found that at different growth rates the average inter-rod spacing was always larger under microgravity(μg)than those under normal gravity(1g).Moreover,with increasing growth rate,the spacing difference between 1 g samples andμg samples reduced progressively.Based on the experimental results and analysis,a physical model was proposed to describe the effect of gravity on the solidification process of eutectic alloy. | Nannan Zhang Xinghong Luo Shaobo Feng Yuhu Ren | 2014 | Journal of Materials Science & Technology2014，30，5： | 3 |
| 3 | RNA interference blocking the apoptosis in HEK293 cells induced by overexpression of alpha-synuclein显示文摘BACKGROUND:Overexpression ofα-synuclein can induce cell apoptosis.RNA interference(RNAi) may block specific gene function and cause gene silencing. OBJECTIVE:To construct a specific and effective RNAi plasmid for theα-synuclein gene and investigate if RNAi can block apoptosis in HEK293 cells,induced by overexpression of wild-typeα-synuclein. DESIGN,TIME AND SETTING:A contrast experiment based on genetically engineered cytobiology was performed at the State Key Lab of Medical Genetics of China,Xiangya Medical College of Central South University,between October 2004 and October 2008. MATERIALS:HEK293 cells and pBSHH1 plasmid were provided by the State Key Lab of Medical Genetics of China;OligDNA sequence by Sagon Bioengineering Company,Shanghai; Lipofectamine 2000 by Invitrogen,USA;α-synuclein monoclonal antibody,Hoechst 33258,and MTT; by Sigma,USA;Horseradish peroxidase-coupled goat anti-rat IgG by KPL,USA;FACSan flow cytometry by BD,USA. METHODS:Four target sites were used to construct hairpin RNA pBSHH1 vectors-pSYNi-1, pSYNi-2,pSYNi-3 and pSYNi-4-which were cloned in the pBSHH1 plasmid.HEK293 cells were transfected using Lipofectamine 2000.In addition,a non-transfect group and a negative plasmid transfect group were established.The cultured HEK293 cells were processed as follows: transfection of blank plasmid(blank control group),transfection ofα-synuclein-pEGFP and RNAi negative vector(negative control group),and transfection ofα-synuclein-pEGFP and pSYNi-1 (transfection group).Cells in all groups were transfected with Lipofectamine 2000 for 48 hours. MAIN OUTCOME MEASURES:Expression ofα-synuclein mRNA and protein were detected by RT-PCR and Western blot.Cell morphology was observed under an inverted fluorescence microscope;cell viability was measured using MTT method;and cell apoptosis was determined with Annexin V-PE flow cytometry. RESULTS:α-synuclein mRNA and protein expressions were significantly decreased in the pSYNi-1 group when compared with the non-transfect and negative plasmid transfect groups(P<0.05).The expressions were partially decreased in the pSYNi-2 group,but there was no significant difference in the pSYNi-3 and pSYNi-4 groups.Hoechst staining indicated that cell nuclei were enlarged in the negative control group,coloring was not uniform,and chromatin was accumulated and appeared spot-like.The nucleus coloring was uniform in the transfection group compared to negative control group.Cell viability in the negative control group was significantly lower than blank control group with cell apoptosis being significantly increased(P<0.05).In comparison with negative control group, cell viability was significantly increased in the transfection group and cell apoptosis was significantly decreased(P<0.05). CONCLUSION:pSYNi-1 can inhibitα-synuclein gene expression and block apoptosis of HEK293 cells induced by overexpression of wild-typeα-synuclein. | Tao Chen Beisha Tang Xiaoping Liao Guoqiang Wen Xinxiang Yan Jifeng Guo Yuhu Zhang Feng Ouyang Zhigang Long Li Cao Jing Li | 2009 | Neural Regeneration Research2009，4，7： | 1 |
| 4 | On the observability of linear continuous fuzzy control systems显示文摘 | FENG Yuhu CHEN Min HU Liangjian | 2007 | International Journal of Uncertainty Fuzziness and Knowledge-Based Systems2007，15，1： | 1 |
| 5 | The solutions of linear fuzzy stochastic differential systems显示文摘 | FENG Yuhu | 2003 | Fuzzy Sets and Systems2003，140，： | 1 |
| 6 | The variance a:id co-variance of fuzzy random variables and their applications显示文摘 | Yuhu FENG Liangjian HU Huisheng SHU | 2001 | FuzzySets and Systems2001，120，3： | 1 |
| 7 | The solutions of linear fuzzy stochastic differential systems显示文摘 | FENG Yuhu | 2003 | Fuzzy Sets and Systems2003，140，： | 1 |
| 8 | Fuzzy stochastic differential systems显示文摘 | FENG Yuhu | 2000 | Fuzzy Sets and Systems2000，115，： | 1 |
| 9 | β-decay study of neutron-rich nucleus ^(34)Al显示文摘The'island of inversion'has been known for over a quarter century,since Warburton et al.[1]proposed that nuclei with intruder ground states would constitute a 3×3 square with Z=10-12,N=20-22 in 1990.Uncovering the underlying inversion mechanism and exploring the scope of the island have attracted significant theoretical and experimental efforts in the following years.Now it is well known that the reduction of N=20 shell gap,which is likely caused by the | Rui Han XiangQing Li WeiGuang Jiang ZhiHuan Li Hui Hua ShuangQuan Zhang CenXi Yuan DongXing Jiang YanLin Ye Jing Li ZongHao Li FuRong Xu QiBo Chen Jie Meng JianSong Wang Chuan Xu YeLei Sun ChunGuang Wang HongYi Wu ChenYang Niu ChenGuang Li Chao He Wei Jiang PengJie Li HongLiang Zang Jun Feng SiDong Chen Qiang Liu XiaoChi Chen HuShan Xu ZhengGuo Hu YanYun Yang Peng Ma JunBing Ma ShiLun Jin Zhen Bai MeiRong Huang Yuan Jie Zhou WeiHu Ma Yong Li XiaoHong Zhou YuHu Zhang GuoQing Xiao WenLong Zhan | 2017 | Science China(Physics,Mechanics & Astronomy)2017，60，4： | 0 |
| 10 | Riesz Decomposition Theorems for Continuous-time Fuzzy Supermartingales显示文摘Compared with discrete- time fuzzy supermartingales, the structure and the properties of trajectories for continuous-time fuzzy supermartingales are more complex. This paper focuses on Riesz decomposition for continuous-time fuzzy supermartingales. The concepts of two types of Riesz decomposition (Riesz decomposition and level Riesz decomposition) are given and some necessary and sttfficient conditions of that a continuous time fuzzy supermartingale has Riesz decomposition are discussed in detail. | Feng Yuhu(冯玉瑚) | 2001 | Journal of Donghua University(English Edition)2001，18，3： | 0 |
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