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Poverty Occurrence Characteristics of Ancient Towns and Villages in Shanxi Province and Poverty Reduction Countermeasures

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Asian Agricultural Research 2012年第5期4卷 13-16,21页

作者： LI xian-e,MA Jing xi’an university of Architecture and Technology,xi’an 710055,china

Based on the questionnaire of 10 sample ancient towns and villages in Shanxi Province,we analyze the poverty occurrence characteristics of ancient towns and villages in Shanxi Province: the poverty incidence in ancient towns and villages is high,with the slow pace of poverty re- duction; the regional characteristics of poverty is prominent; there are conspicuous differences in income between residents living in old houses and residents not living in old houses; poverty reduction shows vulnerability and instability. Then we put forward countermeasures for poverty reduction of ancient towns and villages in Shanxi Province as follows: first,improving the targeting mechanism of poverty in ancient towns and villages; second,speeding up the development of agricultural industrialization in ancient towns and villages; third,advancing internal " urbanization" of ancient towns and villages and new countryside construction; fourth,strengthening infrastructure building in ancient towns and villages; fifth,providing fair and efficient allocation of resources,and reducing regional differences; sixth,promoting the ability of residents in ancient towns and villages to cope with poverty reduction vulnerability.

关键词： Ancient towns and villages Poverty Occurrence char

The Response of Nano Metamaterials and Effect on Perfect Lens

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The Response of Nano Metamaterials and Effect on Perfect Len...

FABRICATION OF SELF-ASSEMBLY DNA-C_(60) MULTILAYER FILMS

2007亚洲显示国际会议

作者： Yu Feng~(1 3) Jian Wu~2 Jian-Ping Song~1 xing-Zhong Qian~3 Yan Pan~3 1 Department of Electronic Science and Technology xi’an Jiaotong university xi’an 710049 china 2 National Key Laboratory of Electromagnetic Environment china Research Institute of Radiowave Propagation Beijing 102206 china 3 College of Science Information Engineering university Zhengzhou 450001 china

＜正＞In factual application of nano negative refractive index Metamaterials,the effects of shape change and optical printing precision on nano negative refractive index Metamaterials are very *** integration technique（FIT）was *** effect of shape change and optical printing precision on resonant frequency and pass band of negative refractive index material was ***-symmetry of split ring resonators has effect on resonant frequency and pass band be- cause of the coupling between wires and *** printing precision can accommodate the demand of perfect lens made of negative refractive index materials.

关键词： Nano Negative Refractive Index Metamaterial Perfect Lens Pass Band Optical Printing Precision

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Chinese Journal of Polymer Science 2002年第6期20卷 591-593页

作者： Shu-guang Yang Yong-jun Zhang xin-hua Dai Wen-hong Tang Chun-yan Liu Wei-xiao Cao Yu-liang Li Jian Xu State Key Laboratory of Polymer physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences,Beijing 100080, china Technology Institute of physics and Chemistry Chinese Academy of Sciences, Beijing 100101, china College of Chemistry and Molecular Engineering Peking university Beijing 100871, china Institute of Chemistry Chinese Academy of Sciences State Key Laboratory of Polymer Physics and Chemistry 北京 100080 Technology Institute of physics and Chemistry Chinese Academy of Sciences 北京 100101 College of Chemistry and Molecular Engineering Peking University 北京 100871

Electrostatic layer-by-layer self-assembly multilayer films were successfully fabricated from C-60-ethylenediamine adduct (C-60-EDA) and DNA. Under visible light irradiation, DNA is ready to be cleaved and the films a... 详细信息

关键词： self-assembly photo-induced cleavage DNA C-60

Observation results of relativistic electrons detected by Fengyun-1 satellite and analysis of relativistic electron enhancement (REE) events

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Science china(physics,Mechanics & Astronomy) 2008年第12期51卷 1947-1956页

作者： YANG xiaoChao1,2↑ & WANG ShiJin1 1 Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100190, china 2 Graduate university of Chinese Academy of Sciences, Beijing 100049, china Center for Space Science and Applied Research Chinese Academy of Sciences Beijing China Graduate university of Chinese Academy of Sciences Beijing China

The space particle component detector on Fengyun-1 satellite which works at the sun-synchronous orbit of about 870 km altitude has detected relativistic electrons for a long time. In comparison with the SAMPEX satellite observations during 1999–2004, the relativistic electron data from Fengyun-1 satellite from June 1999 to 2005 are used to analyze the relativistic electron enhancement (REE) events at the low earth orbit, and the possible correlation among REE events at the low earth orbit, high-speed solar wind and geomagnetic storms is discussed. The statistical result presents that 45 REE events are found in total during this time period, and the strong REE events with the maximum daily average flux > 400 cm?2·srt-1·s?1 occur mostly during the transition period from solar maximum to solar minimum. Among these 45 REE events, four strong REE events last a longer time period from 26-to 51-day and correlate closely with high speed solar wind and strong geomagnetic storms. Meanwhile, several strong geomagnetic storms occur continuously before these REE events, and these continuous geomagnetic storms would be an important factor causing these long-lasting strong REE events. The correlation analysis for overall 45 events indicates that the strength of the REE events correlates with the solar wind speed and the strength of the geomagnetic storm, and the correlation for strong REE events is much stronger than that for weak REE events.

关键词： relativistic electron enhancement low earth orbit high-speed solar wind geomagnetic storm

An equal area conversion model for rasterization of vector polygons

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Science china Earth Sciences 2007年第S1期 169-175页

作者： ZHOU ChengHu1, OU Yang 1, YANG Liao2 & QIN Biao3 1 State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences, and Natural Re-sources Research, Chinese Academy of Sciences, Beijing 100101, china 2 xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, ürümqi 830011, china 3 Mathematics Department of xi’an Transportation university, xi’an 710009, china

Vector-raster conversion is one of the classic research topics in the field of Geographical Information Systems (GIS). The algorithms commonly used in GIS are devoted to maintaining the vector polygons' shape characteristics, but neglect the gain and loss of a polygon's area, which is another important attribute. This paper proposes an equal-area conversion model based on an area compensation optimization principle. According to the topological relationship among polygons and boundary grids, a neighborhood compensation principle was adopted to assign the attributes of boundary grids and a global optimization algorithm was developed to minimize area distortion in the whole data set. Two experiments were designed and the results indicated that this algorithm not only guaranteed the area error is as small as possible, but also has the advantage as being adaptive to polygon shape and spatial structure.

关键词： vector polygon vector-raster conversion boundary grid area distortion boundary geometric characteristics

数字经济与收入差距:数字经济核心产业的视角

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经济研究 2024年第5期59卷 116-131页

作者：洪俊杰李研杨曦山东财经大学 250014 对外经济贸易大学国际经济贸易学院 100029

本文首先构造了一个理论模型,分析数字经济对收入分配差距的影响。在理论分析基础上,将上千万条企业工商登记信息与区县和城市统计数据相结合,基于数字经济核心产业视角,从地区和城乡两个层面实证分析了数字经济对收入差距的影响。研究... 详细信息

本文首先构造了一个理论模型,分析数字经济对收入分配差距的影响。在理论分析基础上,将上千万条企业工商登记信息与区县和城市统计数据相结合,基于数字经济核心产业视角,从地区和城乡两个层面实证分析了数字经济对收入差距的影响。研究发现,数字经济总体上扩大了收入分配差距,主要机制包括数字化对劳动生产率差异和人力资本分布的影响。从地区层面来看,缩小各地区之间的数字鸿沟,尤其是数字素养鸿沟,有助于缓解地区间收入差距的扩大。从城乡层面来看,加强农村居民对数字资源的使用程度有利于城乡间收入差距的缩小。在我国致力于实现共同富裕目标和数字经济快速发展的大背景下,应高度关注数字经济发展对收入分配的影响。本文为相关政策制定提供了一定的借鉴。

关键词：数字经济共同富裕收入分配收入差距

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索莱尔斯中国文化观的三个阶段及其价值定位

青海师范大学学报（社会科学版） 2024年第3期46卷 95-101页

作者：罗昔明江苏大学文学院江苏镇江212013

法国文学的中国文化资源取径孕育了很多风格独特的法国经典作品。在受中国文化影响的当代法国作家中,索莱尔斯无疑是最具开拓意义的代表之一。索莱尔斯对中国文化的汲取,从古典中国到现代中国,从汉字到绘画,从道家到儒家,从间接认知到... 详细信息

法国文学的中国文化资源取径孕育了很多风格独特的法国经典作品。在受中国文化影响的当代法国作家中,索莱尔斯无疑是最具开拓意义的代表之一。索莱尔斯对中国文化的汲取,从古典中国到现代中国,从汉字到绘画,从道家到儒家,从间接认知到直接经验,都是一种积极的追求和选择。对索莱尔斯来说,中国文化不仅仅是一个作为异质他者的外在参照系,更是他积极吸纳非西方文化因素推动自身文本革命的重要路径,中国文化在其文学创造力及思想体系发展中具有重要的建构意义。厘清索莱尔斯中国文化观的三次发展与定位,可为检视其文本革命的“中国特色”及相应的文化逻辑提供更为深入的认知,这其中纵然可见西方视角下的各种曲解与误读,然而一定程度上也闪耀着睿智与创意之光。

关键词：索莱尔斯《原样》中国文化间距

Synthesis,Molecular Structure and Non-isothermal Decomposition Kinetics of 3,6-guanidine- 1,2,4,5-terazine Perchlorate

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Synthesis,Molecular Structure and Non-isothermal Decompositi...

The effect of nitrobenzene on the Raman spectra of ribonuclease in aqueous solution

第十六届全国化学热力学和热分析学术会议

作者： Hai-xia Ma~(a*),Yong-PengHu~a,Tao Mai~a,Ning-Ning Zhao~a,Yan Biao~a, Ji-Rong Song~(a,b*),Rong-Zu Hu~c a College of Chemical Engineering/ Shaanxi Key Laboratory of Physico-Inorganic Chemistry, northwest university,xi’an,shaanxi,710069 P.R.china b Conservation technology department,the Palace Museum,4 Jingshan Qianjie Beijing 100009 c xi’an modern Chemistry Research Institute,xi’an,710065 P.R.china

1,2,4,5-tetrazine continues to attract the interest of chemists,mainly on account of the perspectives that they may offer excellent properties,such as high positive heat of formation,high density, good oxygen balance and high thermal stability *** properties make energetic organic compounds extensively use in many fields,such as propellants,explosives,and *** title compound 3,6-guanidine- 1,2,4,5-terazine perchlorate[DGTz·2(HClO)]was prepared and the crystal structure has been determined by a X-ray *** thermal behavior of the title compound was studied under a non-isothermal condition by DSC and TG/DTG *** kinetic parameters were obtained from analysis of the TG curves by Kissinger method and Ozawa *** value of E and A of the decomposition reaction of the title compound are 213.31 kJ·mol and 10 s,*** values of△S,△Hand△Gof this reaction are 188.46 J·mol·K,112.12 kJ·mol and 213.14 kJ·mol, *** specific heat capacity of the title compound was determined with a continuous C mode of *** was obtained by the analytical method of Micro-DSCⅢwhich the relationship between the specific heat capacity of DGTz·2(HClO) and the thermodynamic temperature was C(J·g·K)=0.1029+3.9458×l0T.

关键词： 3,6-guanidine- 1,2,4,5-terazine perchlorate[DGTz·2(HClO4)] molecular structure kinetics specific heat capacity

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Chinese Journal of Lasers 1993年第4期 59-65页

作者： Weizhong Ke(physics and Chemistry Centrolab. Nanjing Normal university, Nanjing 210024 ,china)Duowei Yu(Biology Department, Nanjing Normal university, Nanjing 210024,china)

The Raman spectra of the native ribonuclease treated with nitrobenzene in aqueous solution have been obtianed. The conformation of the main chain and the side chain in ribonuclease were studied. Among the amide Ⅰ and amide Ⅲ bands, the characters of β-sheet and random coil structures are clear. The disulfide bridges assume the gauche-gauche-gauche conformation. The parts of tyrosine residue are buried. It indicates that nitrobenzene treatment on protein aqueous solution is an efficient means for obtaining better Raman spectra.

关键词： Raman spectroscopy ribonuclease nitrobenzene