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Impact of land-use change on hydrological processes in the Maying River basin, China

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Science China Earth Sciences 2006年第10期49卷 1098-1110页

作者： WANG Genxu1,3. ZHANG Yu2, LIU Guimin2 & CHEN Lin3.1. Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China 2. Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 73.000, China 3. Resource and Environment School, Lanzhou University, Lanzhou 73.000, China 1. Institute of Mountain Hazards and Environment Chinese Academy of Sciences Chengdu 610041 China 3. Resource and Environment School Lanzhou University Lanzhou 730000 China 2. Cold and Arid Regions Environmental and Engineering Research Institute Chinese Academy of Sciences Lanzhou 730000 China

Since the 1960s, dramatic changes have taken place in land-use patterns characterized by the persistent expansion of cultivated land and a continuous decrease in natural woodland and grassland in the arid inland river basins of China. It is very important to assess the effects of such land-use changes on the hydrological processes so vital for water resource management and sustainable development on the catchment scale. The Maying River catchment, a typical arid inland watershed located in the middle of the Hexi Corridor in northwest China, was the site chosen to investigate the hydrological responses to land-use changes. The annual runoff, base flow, maximum peak flow, and typical seasonal runoff in both spring and autumn flood periods were selected as the variables in the hydrological processes. Statistical-trend analysis and curvilinear regression were utilized to detect the trends in hydrological variables while eliminating the climatic influence. The relationship between cultivated land-use and hydrological variables was analyzed based on four periods of land-use variation data collected since 1965. A runoff model was established composed of two factors, i.e., cultivated land use and precipitation. The impact of land use changes, especially in the large ar- eas of upstream woodland and grassland turned into cultivated lands since 1967, has resulted in a mean annual runoff decrease of 28.12%, a base flow decline of 3..3.%, a drop in the maximum peak discharge of 3..77%, and mean discharge decreases in spring and autumn of 3..05% and 24.87% respectively, of which the contribution of cultivated land expansion to the influence of annual runoff amounts to 77%-80%, with the contribution to the influence of spring discharge being 73.-81%, and that to the influence of base flow reaching 62%-65%. Thus, a rational regulation policy of land use patterns is vitally important to the sustainable use of water resources and the proper development of the entire catchment.

关键词： land-use change, arid inland river catchment, hydrological process, impact, Maying River.

Parabolic equation of the m-Laplacian with nonlinear boundary condition

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Chinese Science Bulletin 1998年第11期43卷 905-908页

作者： WANG Shu+ 1, 2, WANG Mingxin 3. XIE Chunhong 1 1. Department of Mathematics, Nanjing University, Nanjing 210093. China 2. Department of Mathematics, Henan University, Kaifeng 475001, China 3. Department of Applied Mathematics, Southeast University, Department of Mathernntics Nanjing University Nanjing China Department of Mathematics Henan University Kaifeng China Department of Applied Mathematics Southeast University Nanjing China

The existence and nonexistence of global positive weak solutions of parabolic equation of the m-Laplician with nonlinear boundary condition are dealt with. The necessary and sufficient conditions on the existence of a... 详细信息

关键词： nonlinear boundary condition parabolic equation of m-Laplacian global solution blow-up.

COLLECTIVELY COMPACT COMPOSITION OPERATOR SEQUENCES BETWEEN BERGMAN AND HARDY SPACES

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Acta Mathematica Scientia 2004年第2期24卷 206-212页

作者：王茂发刘培德 SchoolofMathematicsandStatistics WuhanUniversityWuhan430072China

This paper studies the collective compactness of composition operator sequences between the Bergman and Hardy spaces. Some sufficient and necessary conditions involving the generalized Nevanlinna counting functions fo... 详细信息

关键词： Bergman space Hardy space composition operator collectively compact operator sequence

Deep-Cut Vacuum Distillation in the 10 Mt/a CDU/VDU

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China Petroleum Processing & Petrochemical Technology 2009年第2期11卷 9-13页

作者： Lin Zhuwei1 Mao Fuzhong1 Jiang Bing2 Chen Kaibei3.Chi Ling3.Yan Chun3.1. KBC Advanced Technologies(Beijing) Co.,Ltd. Beijing 100029 2. The National Engineering Research Center for Rectification Technology,Tianjin University 3. SINOPEC Engineering Incorporation) KBC Advanced Technologies (Beijing) Co. Ltd. Beijing 100029 China National Engineering Research Center for Rectification Technology Tianjin University China SINOPEC Engineering Incorporation China

This article introduces the concepts relating to deep-cut vacuum distillation and its suitability,and analyzes the deep-cut vacuum distillation technique licensed by the KBC Advanced Technologies to the 10 Mt/a CDU/VDU of the Qingdao refinery and makes comparison on the test run data after commissioning of the distillation unit. The test results have confirmed that the operation of the CDU/VDU had reached the expected goal to achieve good social and economic benefits.

关键词： CDU/VDU deep cut under vacuum distillation rate

安徽洪镇地区董岭群碎屑锆石U-Pb年代学及其地质意义

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大地构造与成矿学 2016年第6期40卷 1239-1246页

作者：王继林何斌中国冶金地质总局山东局测试中心山东济南250014 中国地质大学(武汉)地球科学学院湖北武汉430074 中国科学院广州地球化学研究所同位素地球化学国家重点实验室广东广州510640

安徽洪镇地区的董岭群为一套以二长片麻岩为主的中深变质岩系,长期以来被认为是长江中下游地区古元古代的变质结晶基底,因作为洪镇变质核杂岩的＂变质核＂而受到广泛关注。为了能够更好地揭示华南前寒武纪的大地构造演化和洪镇＂变质核... 详细信息

安徽洪镇地区的董岭群为一套以二长片麻岩为主的中深变质岩系,长期以来被认为是长江中下游地区古元古代的变质结晶基底,因作为洪镇变质核杂岩的＂变质核＂而受到广泛关注。为了能够更好地揭示华南前寒武纪的大地构造演化和洪镇＂变质核杂岩＂的成因,本文对洪镇地区董岭群主体的二长片麻岩进行了碎屑锆石LA-ICP-MS U-Pb定年,获得了760-83. Ma、193.-2060 Ma和23.0-253. Ma 3.主要年龄区间。这一年龄谱与扬子克拉通前寒武纪的碎屑锆石年龄分布特征类似,暗示董岭群的物质源于其附近克拉通物质的剥蚀及搬运;其中最年轻的锆石年龄为768±16 Ma,这一年龄限定了董岭群地层时代下限,结合其上覆盖层为震旦系（底界小于63. Ma）,将董岭群的地层时代限定于新元古代,这一结论否定了其为古元古代古老变质结晶基底的说法。综合近年来的研究,扬子板块西缘及东南缘目前并未发现太古宙-古元古代的结晶基底。另外,由于董岭群地层时代的重新厘定,得知这一地区并不存在大规模地层缺失和大规模剥离断层,因此前人提出的洪镇＂变质核杂岩＂的构造模型值得商榷。

关键词：董岭群碎屑锆石U-Pb年龄新元古代变质结晶基底变质核杂岩

Prediction of Tumor Outcome Based on Gene Expression Data

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Wuhan University Journal of Natural Sciences 2004年第2期9卷 177-182页

作者： Liu Juan 1,2, Hitoshi Iba 3.1. School of Computer, Wuhan University, Wuhan 43.072, Hubei, China 2. State Key Laboratory of Software Engineering, Wuhan 43.072, Hubei, China 3. Department of Frontier Informatics, University of Tokyo, Tokyo 113.8656, Japan Wuhan University School of Computer Wuhan Hubei China (GRID:grid.49470.3e) (ISNI:***) State Key Laboratory of Software Engineering Wuhan Hubei China (GRID:grid.49470.3e) University of Tokyo Department of Frontier Informatics Tokyo Japan (GRID:grid.26999.3d) (ISNI:***)

Gene expression microarray data can be used to classify tumor types. We proposed a new procedure to classify human tumor samples based on microarray gene expressions by using a hybrid supervised learning method called MOEA+WV (Multi-Objective Evolutionary Algorithm+Weighted Voting). MOEA is used to search for a relatively few subsets of informative genes from the high-dimensional gene space, and WV is used as a classification tool. This new method has been applied to predicate the subtypes of lymphoma and outcomes of medulloblastoma. The results are relatively accurate and meaningful compared to those from other methods. Key words bioinformatics - tumor classification - Pareto optimization - MOEA CLC number Q 786 - TP 181 Foundation item: Supported by the National Natural Science Foundation of China (603.1009), the Foundation of Young Scholars of Ministry of Education of China (150118) and Chenguang Project of Wuhan City (211121009).Biography: Liu Juan (1970-), female, Associate Professor, Postdoctoral, research direction: bioinformatics, data mining, machine learning.

关键词： bioinformatics tumor classification Pareto optimization MOEA

Discovery of immune related factors in Fenneropenaeus chinensis by annotation of ESTs

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Progress in Natural Science:Materials International 2004年第1期14卷 48-55页

作者： SHEN Yaoqing 1,2 , XIANG Jianhai 1*, WANG Bing 1,2 , LI Fuhua 1 and TONG Wei 3.1. Experimental Marine Biology Laboratory, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071,China 2. Graduate School of the Chinese Academy of Sciences, Beijing 10003., China 3. Genomics & Bioinformatics Institute, Chinese Academy of Sciences, Beijing 1013.0, China) Chinese Acad Sci Inst Oceanol Expt Marine Biol Lab Qingdao 266071 Peoples R China Chinese Acad Sci Grad Sch Beijing 100039 Peoples R China Chinese Acad Sci Geonom & Bioinformat Inst Beijing 101300 Peoples R China

A total of 10446 expressed sequence tags (ESTs) are obtained by a large scale sequencing of a cDNA library from cephalothorax of adult Fenneropenaeus chinensis . An EST analysis platform was built up based on local computers and bioinformatic techniques were used to annotate these ESTs in order to promptly find possible functional genes, especially for immune related factors. About 4% of the ESTs show similarity to the coding sequences of such factors, including lectin, serine protease, serpin, lysozyme, etc. These ESTs provide a partial profile of the immune system in F. chinensis and useful information for further study on these genes.

关键词： Fenneropenaeus chinensis bioinformatics ESTs immune factors

一道闪电的传说巴塞罗那Relámpago住宅

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室内设计与装修 2024年第6期 99-103页

作者： h3.建筑事务所秋落 h3.建筑事务所

总部位于巴塞罗那的年轻建筑事务所h3.建筑事务所推出了Relámpago住宅,这是他们最为特别和不同寻常的住宅项目之一。在巴塞罗那郊区圣胡斯特德斯韦恩的传统加泰罗尼亚农舍内,对一座面积55m2的谦逊老谷仓进行翻新,打造出一个色彩丰富的... 详细信息

总部位于巴塞罗那的年轻建筑事务所h3.建筑事务所推出了Relámpago住宅,这是他们最为特别和不同寻常的住宅项目之一。在巴塞罗那郊区圣胡斯特德斯韦恩的传统加泰罗尼亚农舍内,对一座面积55m2的谦逊老谷仓进行翻新,打造出一个色彩丰富的独特空间,向访客诉说着自己难忘的故事。项目的灵感源自业主的愿望,这是一位热爱创意和艺术的历史学家。设计师以多年前一道闪电穿越古老农舍的传说为出发点,力图在功能性和大胆设计中展现这一灵感,以激发客户的艺术兴趣。

关键词：建筑事务所巴塞罗那住宅项目艺术兴趣加泰罗尼亚 Rel 闪电

Deposition features of Ni on self-assembled microtubule template from biolipid by electroless method

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Science China Chemistry 2004年第3期47卷 228-234页

作者： FU Yubin1,2, ZHANG Lide1, ZHENG Jiyong2, FU Shangang3.& ZHU Mingwei3.1. Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 23.03., China 2. Luoyang Ship Material Research Institute, Luoyang 47103., China 3. College of Life Science, Henan Normal University, Xinxiang 453.02, China 1. Institute of Solid State Physics Chinese Academy of Sciences 230031 Hefei China 2. Luoyang Ship Material Research Institute 471039 Luoyang China 3. College of Life Science Henan Normal University 453002 Xinxiang China

Diacetylenic glycero-phosphatidylcholine is a chiral molecule with amphiphilic property, and it can self-assembly into a lipid microtubular structure. The lipid microtubule is a stable structure formed by tightly wound helical ribbons, and the ribbon-wrapping patterns have a significant effect on their chemical deposition on the microtubules. The deposition of colloidal Pd catalyst occurs mainly on the helical edge of the wound helical ribbons to form helical deposition lines of colloidal Pd particles in the interior and exterior of the lipid microtubules, resulting in an uneven chemical deposition of Ni on the microtubules. Catalyzed by as-deposited colloidal Pd, metallized Ni microtubules are characterized by a helical form, which may be in relation to inner stress due to the thickness difference or the different deposition processes. The observation of microtom shows that metallized tubules have a hollow structure. Some metallized tubules have a kind of coaxial double layer structure observed in the direct experiment evidence, indicating that metallization can occur in the inner and outer surface of the lipid tubules. Both lipid microtubules and metallized microtubules can be used as vehicles for encapsulating biological active molecules to control their release and to develop micro-components in biological and mechanical systems. Keywords molecular self-assembly - lipid microtubules - helical pattern - site-specific deposition - electroless metallization

关键词： molecular self-assembly, lipid microtubules, helical pattern, site-specific deposition, electroless metallization.