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Mitochondrial DNA analysis of ancient Sampula population in Xinjiang

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Progress in Natural science:Materials International 2007年第8期17卷 927-933页

作者： Xie Chengzhi~(1,2) Li Chunxiang~2 Cui Yinqiu~(1,2) Cai Dawei~(1,2) Wang Haijing~2 Zhu Hong~1 Zhou Hui~(1,2**) (1.Research Center for Chinese Frontier Archaeology,Jilin university,Changchun 130012,china 2.college of Life science,Jilin university,Changchun 130023,china) Research Center for Chinese Frontier Archaeology Jilin University Changchun 130012 China college of Life science Jilin University Changchun 130023 China

The archaeological site of Sampula cemetery was located about 14 km to the southwest of the Luo County in Xinjiang Khotan,china,belonging to the ancient Yutian kingdom.14C analysis showed that this cemetery was used from 217 *** 283 A.D. Ancient DNA was analyzed by 364 bp of the mitochondrial DNA hypervariable region I （mtDNA HVR-I）,and by six restriction fragment length polymorphism （RFLP） sites of mtDNA coding *** successfully extracted and sequenced intact stretches of maternally inher- ited mtDNA from 13 out of 16 ancient Sampula *** analysis of mtDNA haplogroup distribution showed that the ancient Sampula was a complex population with both European and Asian *** joining network of U3 sub-haplogroup and multi-dimen- sional scaling analysis all showed that the ancient Sampula had maternal relationship with Ossetian and Iranian.

关键词： ancient DNA mitochondrial DNA Sampula ancient populations

Rotation-invariant Target Detection Using a Hybrid Optical Circular Harmonic Joint Transform Correlator with DC Bias

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Chinese Journal of Lasers 1999年第1期8卷 50-55页

作者： HUANG Xiaojing (Department of basic science, Fisheries college, Jimei university, Xiamen 361021, china)HUANG Xianlie (Department of Physics, Xiamen university, Xiamen 361005, china) 集美大学渔业学院福建厦门 361021 厦门大学物理系福建厦门

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１ＩｎｔｒｏｄｕｃｔｉｏｎＦｏｒｒｏｔａｔｉｏｎｉｎｖａｒｉａｎｔｐａｔｅｒｎｒｅｃｏｇｎｉｔｉｏｎ，ｔｈｅｓｐａｔｉａｌｍａｔｃｈｅｄｃｏｒｅｌａｔｏｒｉｓｏｆｔｅｎｕｓｅｄｂｙｔａｋｉｎｇａｃｉｒｃｕｌａｒｈａｒｍｏｎｉｃｃｏｍｐｏｎｅｎｔ（ＣＨ...

关键词： optical pattern recognition circular harmonic function joint transform correlator

Dynamic Mechanical Behaviour of Ultra-high Performance Fiber Reinforced Concretes

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Journal of Wuhan university of Technology(Materials science) 2008年第6期23卷 938-945页

作者：赖建中 Department of Materials science & Engineering Nanjing University of Science & Technology

Ultra-high performance fiber reinforced concretes （UHPFRC） were prepared by replacing 60% of cement with ultra-fine industrial waste powder. The dynamic mechanical behaviour of UHPFRC with different fiber volume fraction was researched on repeated compressive impact in four kinds of impact modes through split Hopkinson pressure bar （SHPB）. The experimental results show that the peak stress and elastic modulus decrease and the strain rate and peak strain increase gradually with the increasing of impact times. The initial material damage increases and the peak stress of the specimen decreases from the second impact with the increasing of the initial incident wave. Standard strength on repeated impact is defined to compare the ability of resistance against repeated impact among different materials. The rate of reduction of standard strength is decreased by fiber reinforcement under repeated impact. The material damage is reduced and the ability of repeated impact resistance of UHPFRC is improved with the increasing of fiber volume fraction.

关键词： ultra-high performance fiber reinforced concretes split Hopkinson pressurebar dynamic repeated impact

Synthesis and anticonvulsant activity of 7-benzylamino-4,5-dihydro-[1,2,4] triazolo[4,3-a] quinolines

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Progress in Natural science:Materials International 2007年第9期17卷 1104-1108页

作者： Cui Xiangshu1,2,Guan Liping3,Li Hailan3,Piao Huri3 and Quan Zheshan1,3(1.Key Laboratory of Organic Functional Factors of the Changbai Mountain,Ministry of Education,Yanbian university,Yanji 133002,china 2.college of basic Medicine,Yanbian university,Yanji 133000,china 3.college of Pharmacy,Yanbian university,Yanji 133000,china) Key Laboratory of Organic Functional Factors of the Changbai Mountain Ministry of Education Yanbian University Yanji 133002China

A series of 7-substituted-benzylamino-4,5-dihydro-[1,2,4]triazolo[4,3-a]quinoline derivatives was synthesized and evaluated for their anticonvulsant *** subcutaneous pentylenetetrazole test(sc-PTZ)demonstrated that the most effective compound in controlling the sc-PTZ induced seizure was 7-(3-bromine-benzylamino)-4,5-dihydro-[1,2,4]triazolo[4,3-a]quinoline(4j)with an ED50 of 5.0 mg/kg and the PI of 20.7,which was also safer than the reference *** the maximal electroshock test(MES)demonstrated that among these derivatives,7-(3-fluorobenzylamino)-4,5-dihydro-[1,2,4]trizolo[4,3-a]quinoline(4i),with an ED50 of 15.3 mg/kg and the PI of 7.2,was the safest in MES ***,their neurotoxicities were measured by the rotarod neurotoxicity test,and the results showed that all derivatives possessed lower neurotoxicity.

关键词： quinoline triazole synthesis anticonvulsant epilepsia

Method of Software Development Based on Component Technology

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Method of Software Development Based on Component Technology

Scenario simulation and forecast of land use/cover in northern china

2012 National Conference on Information Technology and Computer science

作者： Li Yan ningbo dahongying university ningbo china Jiang Li ningbo dahongying university ningbo china

Component-based software development methodology is a software development reuse software solutions in order to avoid duplication of effort,the current software component technology is regarded as one of the key factors of successful *** article describes the main content of the basic concepts of software reuse and component *** on component-based software development technology in the development process of the actual system are discussed,and the development model are proposed.

关键词： software reuse software component technology software development methods

来源： cnki会议评论

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Chinese science Bulletin 2008年第9期53卷 1401-1412页

作者： LI YueChen 1,2,3 & HE ChunYang 3 1 college of Geographical science, Chongqing Normal university, Chongqing 400047, china 2.college of Resources and Environmental science, Chongqing university, Chongqing 400044, china 3 college of Resources science & Technology, Beijing Normal university, Beijing 100875, china college of Geographical science Chongqing Normal University Chongqing 400047 China college of Resources and Environmental science Chongqing University Chongqing 400044 China college of Resources science & Technology Beijing Normal University Beijing 100875 China

Modeling land use/cover scenario changes and its potential impacts on structure and functions of ecosystem in typical regions are helpful to understanding the interactive mechanism between land use/cover system and ecosystem. Based on the analysis of the existing land use/cover simulation and forecast models, a land use/cover scenario dynamics model by the integration of System Dynamics (SD) model, Back Propagation Neural Network (BPNN) and Cellular Automata (CA) model is developed with land use/cover scenario changes in northern china in the next 30 years and simulated in this paper. The model is to simulate the land use/cover scenario demands by using a SD model at first, and then allocating the land use scenario patterns at the local scale with the considerations of land use/cover suitability, inheritance ability and neighborhood effect by using BPNN-CA model to satisfy the balance between land use/cover scenario demands and supplies. It integrates the advantages of SD, BPNN and CA. Macro-driving factors and the micro-spatial pattern are also fully taken into account. The BPNN simplifies the identification of the factors’ weights used in CA model and improves the reliability of the simulation results. The simulation accuracy of the model developed in this paper was found to be about 74%. It suggests that the model has the ability to reflect the complexity of land use/cover system at different scales to some extent and it is a useful tool for assessing the potential impacts of land use system on ecosystem. The simulated results also indicate that the urban land, water area and forest will increase significantly, and farmland and unable land will decrease gradually. Obvious land use/cover changes will take place in the farming-pastoral zone and the southeast area of northern china.

关键词：土地利用中国北方细胞自动机系统动力学

Dynamic damage and stress-strain relations of ultra-high performance cementitious composites subjected to repeated impact

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science china(Technological sciences) 2010年第6期53卷 1520-1525页

作者： LAI JianZhong1 & SUN Wei2 1 Department of Materials science and Engineering,Nanjing university of science and Technology,Nanjing 210094,china 2.college of Materials science and Engineering,Southeast university,Nanjing 211189,china Department of Materials science and Engineering Nanjing University of Science and Technology college of Materials science and Engineering Southeast University

Ultra-high performance cementitious composites (UHPCC) were prepared by replacing 60% of cement with ultra-fine industrial waste *** dynamic damage and compressive stress-strain relations of UHPCC were studied using split Hopkinson pressure bar (SHPB).The damage of UHPCC subjected to repeated impact was measured by the ultrasonic pulse velocity *** show that the dynamic damage of UHPCC increases linearly with impact times and the abilities of repeated impact resistance of UHPCC are improved with increasing fiber volume *** stress waves on impact were recorded and the average stress,strain and strain rate of UHPCC were calculated based on the wave propagation *** effects of strain rate,fibers volume fraction and impact times on the stress-strain relations of UHPCC were *** show that the peak stress and elastic modulus decrease while the strain rate and peak strain increase gradually with increasing impact times.

关键词： ultra-high performance cementitious composites (UHPCC) split Hopkinson pressure bar (SHPB) repeated impact damage stress-strain

Research and Development on Control System of Novel Winding Machine for High-pressure FRP Pipeline

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武汉理工大学学报 2006年第S2期28卷 777-782页

作者： YOU Bo XU Jiazhong HU Haiyan CHENG ningbo ZHANG Qingli college of Automation,Harbin university of science and Technology,Harbin 150080,china college of Automation Harbin University of Science and TechnologyHarbin 150080China

The novel winding machine adopted steam inside solidification technics,can wind,solidify and extract high- pressure fiber reinforced plastic (FRP) pipelines in one single *** control system consisted of the winding and extraction subsystem and the steam inside solidification *** order to improve the control precision and stability,a real-time control method was adopted in the winding and extraction *** this method,high-precision TRIO motion controller combined with industrial personal computer (IPC) forms an open-type CNC system which supports *** Modbus protocol was adopted for the communication between the IPC and TRIO motion *** human-machine interface (HMI) was developed with VC++6.0 and the control software of the motion controller was developed with TRIO basic *** the steam in- side solidification subsystem,embedded IPC and PLC were used to realize the closed-loop control of the steam temperature and the HMI was developed with MCGS 5.1 under *** show that this system has the good performances of high precision, good stability and high efficiency.

关键词： motion control FRP high-pressure inside solidification remote control

Neuroglobin mutation associated with hypoxia adaptation in Tibet chicken

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Progress in Natural science:Materials International 2007年第12期17卷 1419-1424页

作者： Zhang Lifan1, Liu Chong2, Lian Linsheng3, Zhao Chunjiang1, Bao Haigang1 and Wu Changxin1(1. college of Animal science and Technology, china Agricultural university, Beijing 100094, china 2. college of Biological science, china Agricultural university, Beijing 100094, china 3. college of Animal science and Technology, Yunnan Agricultural university, Kunming 650201, china) college of Animal science and Technology China Agricultural University Beijing 100094 China college of Biological science China Agricultural University Beijing 100094 China college of Animal science and Technology Yunnan Agricultural University Kunming 650201 China

Globin protein family plays an important role in storing and transporting oxygen. As a newly reported globin, the revealed function of neuroglobin includes binding and storing oxygen as well as facilitating the utilization of oxygen in neuronal cells. In the present study, mutations in exons of chicken Ngb gene were identified with the method of sequencing and created restriction site PCR in Tibet chicken and other four lowland chicken breeds. The mutations of Lys-2224(E4)-Asn and Ser-2279(E4)-Gly were identified in exon 4 of the gene. The Lys-2224(E4)-Asn mutation existed only in Tibet chicken and the mutation frequencies increased with increasing altitude. Analysis of the haplotype and diplotype of the two mutations in Tibet chicken populations of different altitudes showed that the frequencies of TG haplotype and TTGG diplotype also increased with increasing altitude, while the reverse tendency was found on GGAA diplotype. Under the hypoxic simulation incubation, the main haplotype was TG in living embryos and GA in dead embryos. The results showed that the Lys-2224(E4)-Asn mutation may be a specific mutation associated with hypoxia adaptation in Tibet chicken.

关键词： Tibet chicken neuroglobin hypoxia adaptation Ngb gene mutation.