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浏览/检索结果: 共10条，第1-10条 帮助

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Spatial patterns in pollution discharges from livestock and poultry farm and the linkage between manure nutrients load and the carrying capacity of croplands in China 期刊论文  OAI收割
SCIENCE OF THE TOTAL ENVIRONMENT, 2023, 卷号: 901, 页码: 166006
作者:  Xu, Yuxuan;  Ma, Ting;  Yuan, Ze;  Tian, Jiaxin;  Zhao, Na
  |  收藏  |  浏览/下载：23/0  |  提交时间：2023/10/09
Sustainable wildlife protection on the Qingzang Plateau 期刊论文  OAI收割
GEOGRAPHY AND SUSTAINABILITY, 2021, 卷号: 2, 期号: 1, 页码: 40
作者:  Zhang Yangjian;  Zhao Ran;  Liu Yaojie;  Huang Ke;  Zhu Juntao
  |  收藏  |  浏览/下载：11/0  |  提交时间：2023/05/22
基于三维生态足迹模型的长江中游城市群平衡性分析与生态补偿研究 期刊论文  OAI收割
生态学报, 2020, 卷号: 40, 期号: 24, 页码: 9011
作者:  杨一旸;  卢宏玮;  梁东哲;  陈义忠;  田沛佩
  |  收藏  |  浏览/下载：34/0  |  提交时间：2021/03/15
Spatial variations in soil-water carrying capacity of three typical revegetation species on the Loess Plateau, China 期刊论文  OAI收割
AGRICULTURE ECOSYSTEMS & ENVIRONMENT, 2019, 卷号: 273, 页码: 25-35
作者:  Jia, Xiaoxu;  Shao, Mingan;  Yu, Dongxue;  Zhang, Yu;  Binley, Andrew
  |  收藏  |  浏览/下载：72/0  |  提交时间：2019/09/24
Spatial variations in soil-water carrying capacity of three typical revegetation species on the Loess Plateau, China 期刊论文  OAI收割
AGRICULTURE ECOSYSTEMS & ENVIRONMENT, 2019, 卷号: 273, 页码: 25-35
作者:  Jia, Xiaoxu;  Shao, Mingan;  Yu, Dongxue;  Zhang, Yu;  Binley, Andrew
  |  收藏  |  浏览/下载：40/0  |  提交时间：2019/09/24
Spatial variations in soil-water carrying capacity of three typical revegetation species on the Loess Plateau, China 期刊论文  OAI收割
AGRICULTURE ECOSYSTEMS & ENVIRONMENT, 2019, 卷号: 273, 页码: 25-35
作者:  Jia, Xiaoxu;  Shao, Mingan;  Yu, Dongxue;  Zhang, Yu;  Binley, Andrew
  |  收藏  |  浏览/下载：31/0  |  提交时间：2019/09/24
Modeling Effects of Land use and Vegetation Density on Soil Water Dynamics: Implications on Water Resource Management SCI/SSCI论文  OAI收割
2014
She D. L.; Liu D. D.; Xia Y. Q.; Shao M. A.
收藏  |  浏览/下载：42/0  |  提交时间：2014/12/24
基于改进相对资源承载力模型的天山北坡可持续发展研究/Sustainable Development in Northern Slope of the Tianshan Mountains Based on Improved Model of Carrying Capacity Related to Resources[J] 期刊论文  OAI收割
干旱区研究, 2013, 卷号: 30, 期号: 6, 页码: 1073-1080
作者:  汪菲;  杨德刚;  王长建;  张豫芳;  唐宏
  |  收藏  |  浏览/下载：33/0  |  提交时间：2017/12/29
河南省资源、环境与经济社会协调发展研究——基于系统承载能力测度理论 学位论文  OAI收割
博士后, 北京: 中国科学院研究生院, 2012
马歆
收藏  |  浏览/下载：44/0  |  提交时间：2014/05/15
Research on load-bearing characteristics of precision air-bearing rotary stage (EI CONFERENCE) 会议论文  OAI收割
3rd international Conference on Manufacturing Science and Engineering, ICMSE 2012, March 27, 2012 - March 29, 2012, Xiamen, China
作者:  Wang L.;  Wang L.;  Wang L.;  Lin J.
收藏  |  浏览/下载：117/0  |  提交时间：2013/03/25
Air-bearing is a core component of air-bearing rotary stage. The weakness that the air-bearing has the low load capacity and stiffness has been concerned about by domestic and foreign scholars. So how to improve the load capacity and stiffness has become a serious problem. In order to improve the load capacity and stiffness of the air-bearing rotary stage  in this paper  we improved structure of Zhang Wenjie and others' high-precision direct-drive air-bearing rotary stage. The gas film of air-bearing has been meshed by GAMBIT software  and we use FLUENT software to obtain the carrying capacity features of the gas film. Finally  the structural static force of the precision air-bearing rotary stage will be analyzed by ANSYS software. The analysis results show that: the structural design of the precision air-bearing rotary stage is reasonable  and this structure can provide a larger range of loads. Even in heavy load conditions  a larger deformation will not occur any more. It has a good practical value  and also can be widely used in high precision equipments. (2012) Trans Tech Publications.