中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
机构
采集方式
内容类型
发表日期
学科主题
筛选

浏览/检索结果: 共13条,第1-10条 帮助

条数/页: 排序方式:
Contributions of cultivars, management and climate change to winter wheat yield in the North China Plain in the past three decades SCI/SSCI论文  OAI收割
2014
Xiao D. P.; Tao F. L.
收藏  |  浏览/下载:39/0  |  提交时间:2014/12/24
Technology of USB HOST applying in traffic controller based on ISP1161A (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011, August 12, 2011 - August 14, 2011, Harbin, China
Haibo L.; Song K.
收藏  |  浏览/下载:20/0  |  提交时间:2013/03/25
Control and management of the urban traffic signal is an problem that modern city has to face. The traffic signal controller makes a great contribution to the improvement of traffic status and the reduction of traffic jam. A traffic controller is designed using the technology of USB host based on ISP1161A. Universal serial bus is new interface bus architecture for PC  which supports the PnP function Of PC peripheral equipments and has been widely used in computer and communicational devices. ISP1161A complies with the protocol of USB1.1  and is used as the core part of the system. As a new try  the USB host technology is applied into the design of controller to implement the communication with PC. Configuration of scheme is carried out successfully. The USB host technology makes configuration of scheme and future update easier and more convenient. 2011 IEEE.  
a case study on usage of a software process management tool in china 会议论文  OAI收割
17th Asia Pacific Software Engineering Conference: Software for Improving Quality of Life, APSEC 2010, Sydney, NSW, 40850
Jing Du; Ye Yang; Zhongpeng Lin; Qing Wang; Mingshu Li; Feng Yuan
  |  收藏  |  浏览/下载:25/0  |  提交时间:2011/03/31
Variation in Vegetation Structure and Soil Properties, and the Relation Between Understory Plants and Environmental Variables Under Different Phyllostachys pubescens Forests in Southeastern China 期刊论文  OAI收割
ENVIRONMENTAL MANAGEMENT, 2010, 卷号: 45, 期号: 4, 页码: 779-792
作者:  
Zhen, Lin;  Xie, Gaodi(谢高地);  Zhang, Changshun
收藏  |  浏览/下载:241/62  |  提交时间:2011/06/10
Land use dynamics and landscape change pattern in Hetao irrigation district, Inner Mongolia, China 会议论文  OAI收割
6th International Symposium on Digital Earth: Data Processing and Applications, Beijing, China, September 9, 2009 - September 12,2009
Zhang, Yinhui; Luo, Yi; Zhao, Wenwu
收藏  |  浏览/下载:27/0  |  提交时间:2014/12/07
This study analyzed spatial and temporal changes in land use in an irrigation district covering an area of 1.7 million ha in Northern China by GIS analyses and also investigated changes in landscape pattern using the landscape structure analysis program FRAGSTATS over the study period from 1986 to 2000. The decreases in farmland and the increases in grassland area mainly resulted from the policy of grain for green and converting slope farmland into pasture from China government. In spite of the efforts to conserve the fragile ecosystem  the land degradation  including soil salinization and grassland degradation  was spreading rapidly. The area of alkali-saline land increased by 22493 ha and about 50555 ha of dense grassland degraded into mid-density grassland. In terms of landscape fragmentation  both farmland and dense grassland showed the tendency of increased fragmentation. Both adverse natural conditions and human activities are responsible for the land degradation expansion in Hetao irrigation district  but the root causes are increasing population pressure and irrational human activities  such as flooding irrigation method and over-grazing. To prevent land degradation from spreading  population control and improvement of the management are prerequisite approaches. 2010 SPIE.  
Rice allelopathy 期刊论文  OAI收割
ALLELOPATHY JOURNAL, 2008, 卷号: 22, 期号: 2, 页码: 261-273
作者:  
Kong, CH;  Kong, CH, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China
  |  收藏  |  浏览/下载:22/0  |  提交时间:2011/09/23
Varietal improvement in rice allelopathy 期刊论文  OAI收割
ALLELOPATHY JOURNAL, 2008, 卷号: 22, 期号: 2, 页码: 379-384
作者:  
Kong, CH;  Chen, XH;  Hu, F;  Kong, CH, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China
  |  收藏  |  浏览/下载:31/0  |  提交时间:2011/09/23
quantitatively managing defects for iterative projects: an industrial experience report in china 会议论文  OAI收割
International Conference on Software Process, Leipzig, GERMANY, MAY 10-11,
Gou Lang; Wang Qing; Yuan Jun; Yang Ye; Li Mingshu; Jiang Nan
  |  收藏  |  浏览/下载:9/0  |  提交时间:2011/06/13
Rice allelopathy 期刊论文  OAI收割
ALLELOPATHY JOURNAL, 2008, 卷号: 22, 期号: 2, 页码: 261-273
Kong, CH
收藏  |  浏览/下载:45/0  |  提交时间:2011/09/23
Varietal improvement in rice allelopathy 期刊论文  OAI收割
ALLELOPATHY JOURNAL, 2008, 卷号: 22, 期号: 2, 页码: 379-384
Chen, XH; Hu, F; Kong, CH
收藏  |  浏览/下载:20/0  |  提交时间:2011/09/23