期刊文献+
共找到14,713篇文章
< 1 2 250 >
每页显示 20 50 100
The Present Situation of Chattel Guarantee System and Its Improvements—Taking the Angle of American Uniform Commercial Code(UCC)
1
作者 仇晓光 刘聪 《海外英语》 2011年第12X期376-379,共4页
Although there are appropriate stipulations for the chattel guarantees in the law of China, this guarantee system could not adapt to the request of economy's development because of the following reasons: the scope... Although there are appropriate stipulations for the chattel guarantees in the law of China, this guarantee system could not adapt to the request of economy's development because of the following reasons: the scope of chattel guarantees is narrow according to relevant stipulations; the transaction cost of the chattel is high; mortgage registration of chattel is in a mess; lack of efficiently executive guarantee system, etc. To counter the problems existing in the present Chinese chattel guarantee system, in this article, the author proposed some corresponding suggestions and countermeasures, hoping to perfect the chattel guarantee system in China. 展开更多
关键词 Chattel GUARANTEE System AMERICAN UNIFORM COMMERCIAL CODE present situation
下载PDF
Residual Film Pollution in the Eighth Division of the Xinjiang Production and Construction Corps
2
作者 Weijun LI Xingyao ZHANG +3 位作者 Nate KA Xianglin YANG Jianjiang LU Xuyun ZHANG 《Research and Application of Materials Science》 2023年第1期11-16,共6页
This study investigated the residual film content and distribution at different soil depths in the Eighth Division of the Xinjiang Production and Construction Corps.Before spring plowing in 2019,representative fields ... This study investigated the residual film content and distribution at different soil depths in the Eighth Division of the Xinjiang Production and Construction Corps.Before spring plowing in 2019,representative fields in four areas(Anjihai,Shihezi suburbs,Mosuowan and Xiayedi)were selected for residual film collection.The average content of residual film in the Eighth Division was 104 kg/ha.The residual film content in the four areas decreased in the order Anjihai>Shihezi suburbs>Mosuowan>Xiayedi.The average amount of residual film collected from cotton fields was greater than that from corn fields.Residual film content in the cotton field at soil depths of 0~10 and 10~30 cm was higher than that in the corn field,whereas the residual film content at a 30–50 cm soil depth in the corn field was higher than that in the cotton field.The results showed that farmers do not consider the long-term benefits,the high cost and short time of recycling,and the easy recycling of surface residual film.The shallow that the higher content of residual film,the less water in the soil of cotton.The same time,the results showed that the quantity of residual film in cotton field had greater influence on cotton quality. 展开更多
关键词 Eighth division Residual film POLLUTION present situation PROBLEMS
下载PDF
Present Situation and Benefit Analysis of the Straw Recycling in Southwest China 被引量:4
3
作者 GAO Xue-song ZENG Min +1 位作者 DENG Liang-ji ZHONG Chang-biao 《Asian Agricultural Research》 2010年第2期40-44,共5页
Currently,sustainable agricultural development in China is facing some big challenges of how to promote the present developing pattern,to lengthen material transformation chain,to increase the utilization rate of mate... Currently,sustainable agricultural development in China is facing some big challenges of how to promote the present developing pattern,to lengthen material transformation chain,to increase the utilization rate of material and energy in agricultural system and to form a healthy agricultural ecological circulation system.China is a major country producing crops and straws.Both high-efficient utilizing pattern of straw and technological system are needed urgently.According to the field survey,we point out the status of straw utilization and the main recycling pattern in typical farming areas in Sichuan,China through the literature review and data collection.Based on the statistical analysis,the economic,environmental and social benefits of each utilization way are analyzed,and the methods and measures are proposed in order to promote recycling utilization of the straw in Sichuan farming area,and to offer theoretical guidance for energy saving,food safety,and pollution control. 展开更多
关键词 Straw utilization present situation BENEFIT SICHUAN China
下载PDF
The Major Ore Clusters of Super-Large Iron Deposits in the World, Present Situation of Iron Resources in China, and Prospect 被引量:2
4
作者 ZHAO Yiming FENG Chengyou LI Daxin 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2014年第6期1895-1915,共21页
The metamorphosed sedimentary type of iron deposits(BIF) is the most important type of iron deposits in the world, and super-large iron ore clusters of this type include the Quadrilatero Ferrifero district and Caraj... The metamorphosed sedimentary type of iron deposits(BIF) is the most important type of iron deposits in the world, and super-large iron ore clusters of this type include the Quadrilatero Ferrifero district and Carajas in Brazil, Hamersley in Australia, Kursk in Russia, Central Province of India and Anshan-Benxi in China. Subordinated types of iron deposits are magmatic, volcanic-hosted and sedimentary ones. This paper briefly introduces the geological characteristics of major super-large iron ore clusters in the world. The proven reserves of iron ores in China are relatively abundant, but they are mainly low-grade ores. Moreover, a considerate part of iron ores are difficult to utilize for their difficult ore dressing, deep burial or other reasons. Iron ore deposits are relatively concentrated in 11 metallogenic provinces(belts), such as the Anshan-Benxi, eastern Hebei, Xichang-Central Yunnan Province and middle-lower reaches of Yangtze River. The main minerogenetic epoches vary widely from the Archean to Quaternary, and are mainly the Late Archean to Middle Proterozoic, Variscan, and Yanshanian periods. The main 7 genetic types of iron deposits in China are metamorphosed sedimentary type(BIF), magmatic type, volcanic-hosted type, skarn type, hydrothermal type, sedimentary type and weathered leaching type. The iron-rich ores occur predominantly in the skarn and marine volcanic-hosted iron deposits, locally in the metamorphosed sedimentary type(BIF) as hydrothermal reformation products. The theory of minerogenetic series of mineral deposits and minerogenic models has applied in investigation and prospecting of iron ore deposits. A combination of deep analyses of aeromagnetic anomalies and geomagnetic anomalies, with gravity anomalies are an effective method to seeking large and deep-buried iron deposits. China has a relatively great oresearching potential of iron ores, especially for metamorphosed sedimentary, skarn, and marine volcanic-hosted iron deposits. For the lower guarantee degree of iron and steel industry, China should give a trading and open the foreign mining markets. 展开更多
关键词 major ore clusters of super-large iron deposits present situation of iron ore resources in China genetic type temporal-spatial distribution ore-searching potential
下载PDF
Monitoring and Evaluation of Present Situation of Environmental Quality in the Sea Area near the Aojiang Estuary in Wenzou 被引量:1
5
作者 Ye Maosen Yang Dan +4 位作者 Zhang Rongbao Xu Hengtao Zhang Haisheng Yao Dongping Ye Xinrong 《Meteorological and Environmental Research》 CAS 2017年第3期57-61,66,共6页
Based on the monitoring results of environmental quality in the sea area near the Aojiang estuary in Wenzou during 2010-2012,the present situation of environmental quality in the sea area was analyzed and evaluated. T... Based on the monitoring results of environmental quality in the sea area near the Aojiang estuary in Wenzou during 2010-2012,the present situation of environmental quality in the sea area was analyzed and evaluated. The results show that p H,DO,CODMn,petroleum,and heavy metals( Cu,Pb,Zn,Cd,Hg,As and Cr) in the sea area near the Aojiang estuary did not exceed the second-class standard of Seawater Quality Standard( GB 3097-1997),but both inorganic nitrogen and reactive phosphate in the sea area exceeded the second-class standard seriously,and the water quality of the sea area was in an eutrophic state; domestic sewage and fertilizer loss were the main sources of nitrogen and phosphorus. The standard index of most evaluation factors of sediment quality except for Zn was smaller than 1,meeting the demands of sediment quality for environmental protection. 展开更多
关键词 Sea area NEAR the Aojiang ESTUARY in Wenzou present situation of environmental QUALITY Monitoring Evaluation Water QUALITY Sediment QUALITY
下载PDF
THE PRESENT SITUATION,TYPES ANDCHANGES OF CHINA'S ENVIRONMENT
6
作者 任望兵 武伟 李爱玲 《Chinese Geographical Science》 SCIE CSCD 1999年第1期20-25,共6页
Based on development level of regional societye and economy, the paper attempts oto analyze the present situation, types and change of regional environment in China through the definition of four conceptions environme... Based on development level of regional societye and economy, the paper attempts oto analyze the present situation, types and change of regional environment in China through the definition of four conceptions environmental pollution index (EPI), social and economic comprehensive index (SECI), -environmental comprehensive index (ECI) and social, economic and environmental environmental index (SEECI) and some mathematical calculation, and draws someconclusions to be worth referring: 1). There exists close relation between economic development and environmental situation. With high-speed development of economy, the discharge of the three wastes in China has been increasing, but itsenvironmental social and economic benefit has also been improved the same the time. 2) In the course of economic development, regional environment situation in China has continuously been changing, and there exists the difference of environmental quality between provinces, which is bigger than that of economic development level between there. 3) Except veryfew provinces, regional EPI in China has risen in varying degrees since the 1980s, which shows that the task for China toprevent environment from polluting is still arduous. 展开更多
关键词 REGIONAL ENVIRONMENT present situation of ENVIRONMENT ENVIRONMENTAL TYPES ENVIRONMENTAL change
下载PDF
THE PRESENT SITUATION OF THE DEVELOPMENT OF RARE EARTHS IN CHINA
7
作者 Liu Yujiu(Bureau of Rare and Rare Earth Metals,China National Nonferrous Metals Industry Corporation,Beijing P.R.China) 《Journal of Rare Earths》 SCIE EI CAS CSCD 1990年第1期67-73,共7页
1.Rare Earth Resources in China1.1.Reserves and distributionChina is the country which is the richest in the world in rare earth(RE)resources of allavailable varieties of minerals and their deposits are located in vas... 1.Rare Earth Resources in China1.1.Reserves and distributionChina is the country which is the richest in the world in rare earth(RE)resources of allavailable varieties of minerals and their deposits are located in vast areas in China.Reserveshave been estimated at a grand total of 36 million ton,which is 80% of the world(RE)de-posits.The majority of these deposits are concentratedly located in Baiyunebo mine of the 展开更多
关键词 RE the present situation of the DEVELOPMENT of RARE EARTHS IN CHINA
下载PDF
The Present Situation of English Teaching in High School and Teaching Reform Strategies
8
作者 李凤俐 《课程教育研究(学法教法研究)》 2016年第9期20-21,共2页
基于二十多年的高中英语教学经验以及参加全国高中优质课竞赛,本文阐述了我国高中英语教学现状,分析当前高中课堂教学的不足.并提出教改策略。
关键词 高中英语教学 现状 不足 教改策略
下载PDF
The Present Situation and Future Prospect Of Non-Governmental Organizations in China and Asia
9
《International Understanding》 2001年第4期6-7,共2页
关键词 situation and Future Prospect of Non-Governmental Organizations in China and Asia the present
下载PDF
The Present Situation of the Poverty-Stricken Population
10
《China Population Today》 1995年第1期15-15,共1页
ThePresentSituationofthePoverty-StrickenPopulation¥//(ThefollowingisanabstractofspeechdeliveredbyMr.ChenJuns... ThePresentSituationofthePoverty-StrickenPopulation¥//(ThefollowingisanabstractofspeechdeliveredbyMr.ChenJunsheng,StateCouncil... 展开更多
关键词 the present situation of the Poverty-Stricken Population
下载PDF
An Analysis of the Present Situation of Migrant Workers' Education and Training——Taking Zhejiang as an Example
11
作者 Xianghong JU 《Asian Agricultural Research》 2018年第11期97-102,共6页
The education and training of migrant workers is an important way to improve the human capital and quality of migrant workers,is necessary for industrial transformation and upgrading,and is the key to solving issues c... The education and training of migrant workers is an important way to improve the human capital and quality of migrant workers,is necessary for industrial transformation and upgrading,and is the key to solving issues concerning agriculture,countryside and farmers. Taking the developed coastal province of Zhejiang Province as an example,this paper analyzes the situation of migrant workers' education and training on employment transfer,the characteristics of migrant workers' education and training,and the problems existing in migrant workers' education and training,and puts forward some recommendations. On this basis,some conclusions are drawn. 展开更多
关键词 农民工 人力资本 教育培训 发展现状
下载PDF
The Present Situation and Future Prospect of the World Shipping Industry
12
作者 Zheng Jinyan and Yang Bin 《中国远洋航务》 1995年第4期23-23,共1页
Ⅰ. Shipping After entering into the 1990’s, the ship-building industry, badly affected by the long recession of the world shipping market, has been growing very slowly, while the competition has been a fierce one. F... Ⅰ. Shipping After entering into the 1990’s, the ship-building industry, badly affected by the long recession of the world shipping market, has been growing very slowly, while the competition has been a fierce one. From the shares enjoyed by the major shipping countries in the world, we can see that the first one is Japan which occupied 38%; South Korea came to the second,obtaining 15%; the third is Germany, being 8%. The shipbuilding industry in America is shrinking, owing to the high cost of production. Up to 1993,Japanese ship yards had still been in difficult situation, and many Japanese ship owners would rather order new ships from South Korea because the rising value of Japanese yen made it expensive to build in domestic yards. Nowadays, Japanese shipbuilding industry is exposed to the problem of scarce of labour force. The Korean shipbuilding industry, 展开更多
关键词 World the present situation and Future Prospect of the World Shipping Industry
下载PDF
The Present Situation and Prospects of China in Building Socialism
13
《International Understanding》 1994年第1期5-8,共4页
ThePresentSituationandProspectsofChinainBuildingSocialismAttheinvitationofMr.Otani,MayorofHamadaofShinianeCo... ThePresentSituationandProspectsofChinainBuildingSocialismAttheinvitationofMr.Otani,MayorofHamadaofShinianeCounty,Japan,Mr.Zha... 展开更多
关键词 the present situation and Prospects of China in Building Socialism
下载PDF
The Present Situation and Future Development of Container Ports in the World
14
作者 Shi Youfu Qian Xianru 《中国远洋航务》 1995年第5期17-19,共3页
The Improvement of Port Management Stimulated by the Development of Container Traffic Container transport started to flourish in the 70s and grew rapidly. Comparing the traffic volume of 1990 with that of 1975, the Ja... The Improvement of Port Management Stimulated by the Development of Container Traffic Container transport started to flourish in the 70s and grew rapidly. Comparing the traffic volume of 1990 with that of 1975, the Japanese ports handled 7. 82 million TEUs in 1990 and 1.87 million TEUs in 1975 while the "Four Small Dragonsnhandied 18. 10 million TEUs in 1990 and 1.68 million TEUs in 1975,4.2 times and 10.75 times increase respectively. 展开更多
关键词 the present situation and Future Development of Container Ports in the World
下载PDF
The Present Situation and Development Countermeasures for Meat Products Industry in Henan 被引量:2
15
作者 欧阳华澍 王国贞 +3 位作者 娄鹏雁 王东栋 苗双双 陈献文 《Agricultural Science & Technology》 CAS 2011年第8期1245-1248,共4页
This paper introduces the development and present situation of meat industry in Henan Province so as to get comprehensive understanding of this industry,including the advantages and insufficiencies of this industry,an... This paper introduces the development and present situation of meat industry in Henan Province so as to get comprehensive understanding of this industry,including the advantages and insufficiencies of this industry,and then puts forward some countermeasures for the future development of the meat products of Henan Province,to realize the rapid,healthy and sustainable development of meat industry in Henan and create huge economic and social benefits in Henan. 展开更多
关键词 Henan Province Meat products industry present situation Development countermeasures
下载PDF
DYNAMIC CHARACTERISTICS OF PRESENT PRODUCTIVITY FOR CULTIVATED LAND IN THE FARNMING-PASTORAL ZONE OF INNER MONGOLIA 被引量:1
16
作者 Wang Jing ’ai(Department of Resources and Environmental Science Beijing Normal University, Beijing 100875People’s Republic of China) 《Journal of Geographical Sciences》 SCIE CSCD 1995年第2期21-29,共9页
In this article, the distribution of cultivated land, the changes ofcultivated land productivity, and regional differentiation of the Change forpresent productivity in the Farming-Pastoral Zone, Inner Mongolia aredis... In this article, the distribution of cultivated land, the changes ofcultivated land productivity, and regional differentiation of the Change forpresent productivity in the Farming-Pastoral Zone, Inner Mongolia arediscussed. Then, the close relationship between dynamic characterlsticsdivision and atmospheric circulation systems is revealed. Finally, based ondynamic characteristics, four regions are divided, including thenortheastem area, the eastern area, the western area, and the middle area. 展开更多
关键词 Farming-Pastoral Zone present productivity cultivated land dynamic characteristics division
下载PDF
The Present Situation on Disseminated Intravascular. Coagulation Studies 被引量:2
17
作者 LIU Zelin 刘泽霖 《血栓与止血学》 2001年第3期99-100,共2页
DIC is not a clinical entity in itself. Instead, it always occurs secondary to a broad spectrum of various diseases. DIC may be defined as an acquired syndrome characterized by the activation of intravascular coagulat... DIC is not a clinical entity in itself. Instead, it always occurs secondary to a broad spectrum of various diseases. DIC may be defined as an acquired syndrome characterized by the activation of intravascular coagulation up to intravascular fibrin formation. Although the trigger for the activation of the coagulation system may vary depending on the underlying condition, it is usually mediated by several cytokines. Thrombin generation proceeds via the (extrinsic) tissue factor/factor Ⅶ a route and simultaneous depression of inhibitory mechanisms, such as the protein C and protein S system. In addition, impaired fibrin degradation, dur to high circulating levels of PAI-1, contributes to enhanced introvascular fibrin deposition. 展开更多
关键词 播散性血管内凝血 研究 病理
下载PDF
CRITICAL ENVIRONMENTAL SITUATION IN THE MIDDLE REACHES OF THE YELLOW RIVER IN CHINA
18
作者 Yang Qinye Liu Xuehua Li Guodong(Institute of Geography, CAS, Beijing 100101People’s Republic of China) 《Journal of Geographical Sciences》 SCIE CSCD 1996年第1期36-47,共12页
This paper researches and analyses the critical envirormental situation in the Middle Reaches of the Yellow River and compiles the map of critical environmental situation of this area (1:2,000,000). Five types of envi... This paper researches and analyses the critical envirormental situation in the Middle Reaches of the Yellow River and compiles the map of critical environmental situation of this area (1:2,000,000). Five types of environmental situation (ES) are divided, namely, conflict ES, critical ES, crisis ES, disastrous ES and accidental ES and 7 groups of main factors are used to identify and classify the critical environmental situation after considering the speciality of this region and the law of guiding factors. They are pollution, endemic disease, soil erosion, drought and water-shortage, forest degeration, wind-erosion and desertification, and soil salinization. Based on mapping and analysis, the paper also concludes the regional distribution law of critical environmental situation of this region and divides it into 8 small districts through combining the critical envirormental situation, regional distribution law and guiding factors. This can provide scientific basis and reference for preserving and renovating the environments with different fragile types and fragile levels. 展开更多
关键词 middle reaches of the Yellow River critical environmental situation mapping district division of critical environment
下载PDF
Analysis and Strategy Research on the Mathematics Learning Situation of the Postgraduate Candidates
19
作者 Hanyutang WANG Yumo ZHOU +5 位作者 Bo ZHEN Min HUANG Falei YANG Yongjia MA Hong FANG Liyan XU 《Asian Agricultural Research》 2022年第4期49-51,共3页
This study takes the students who intend to study for graduate students as the research object,and makes a questionnaire survey on the mathematics learning situation and learning platform of the postgraduate candidate... This study takes the students who intend to study for graduate students as the research object,and makes a questionnaire survey on the mathematics learning situation and learning platform of the postgraduate candidates.Questionnaires were distributed online and offline,and a total of 326 valid questionnaires were collected.Based on 326 questionnaires,this paper analyzes the current learning situation of mathematics in the postgraduate entrance examination and studies the strategies based on the present situation,which points out the direction for the construction of mathematics learning and communication platform based on the needs of postgraduate entrance examination. 展开更多
关键词 Postgraduate candidates Mathematics for the postgraduate entrance examination Learning situation present situation analysis Strategy research
下载PDF
The Taiyuan Lianhualao History and the Present Situation, Problems and Thinking
20
作者 Liu Fang 《Review of Global Academics》 2014年第5期376-378,共3页
Taiyuan lian hua lao is the local of unique Shangcun of Tai Yuan in Chinese folk rap art breed, it is not a matter cultural heritage directory so far by column for Shanxi Province in 2006. This paper describes the dev... Taiyuan lian hua lao is the local of unique Shangcun of Tai Yuan in Chinese folk rap art breed, it is not a matter cultural heritage directory so far by column for Shanxi Province in 2006. This paper describes the development of Taiyuan Lian hua lao from the aspects of present situation, problems and thinking, then puts forward the relevant suggestions. 展开更多
关键词 taiyuan lianhualao present situation PROBLEMS THINKING
下载PDF
上一页 1 2 250 下一页 到第
使用帮助 返回顶部