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9条,第1-9条 帮助

条数/页: 排序方式:
Meta-analysis reveals the species-, dose- and duration-dependent effects of cadmium toxicities in marine bivalves 期刊论文  OAI收割
SCIENCE OF THE TOTAL ENVIRONMENT, 2023, 卷号: 859, 页码: 10
作者:  
Zhan, Junfei;  Sun, Tao;  Wang, Xuehong;  Wu, Huifeng;  Yu, Junbao
  |  收藏  |  浏览/下载:16/0  |  提交时间:2023/08/17
Meta-analysis reveals the species-, dose- and duration-dependent effects of cadmium toxicities in marine bivalves 期刊论文  OAI收割
SCIENCE OF THE TOTAL ENVIRONMENT, 2023, 卷号: 859, 页码: 10
作者:  
Zhan, Junfei;  Sun, Tao;  Wang, Xuehong;  Wu, Huifeng;  Yu, Junbao
  |  收藏  |  浏览/下载:5/0  |  提交时间:2024/11/08
Optimization of the T3-induced Xenopus metamorphosis assay for detecting thyroid hormone signaling disruption of chemicals 期刊论文  OAI收割
JOURNAL OF ENVIRONMENTAL SCIENCES, 2017, 卷号: 52, 期号: 0, 页码: 314-324
作者:  
Yao, Xiaofang;  Chen, Xiaoying;  Zhang, Yinfeng;  Li, Yuanyuan;  Wang, Yao
  |  收藏  |  浏览/下载:42/0  |  提交时间:2018/07/26
Linking ecosystem characteristics to final ecosystem services for public policy 期刊论文  OAI收割
ECOLOGY LETTERS, 2015, 卷号: 18, 期号: 1, 页码: 108-118
作者:  
Wong, Christina P.;  Jiang, Bo;  Kinzig, Ann P.;  Lee, Kai N.;  Ouyang, Zhiyun
收藏  |  浏览/下载:73/0  |  提交时间:2016/03/03
A new algorithm for solving the best-fit sphere of optical aspherical surface (EI CONFERENCE) 会议论文  OAI收割
2nd International Conference on Advances in Materials and Manufacturing, ICAMMP 2011, December 16, 2011 - December 18, 2011, Guilin, China
作者:  
Lin J.;  Lu M.
收藏  |  浏览/下载:38/0  |  提交时间:2013/03/25
To solve the best-fit sphere (BFS) accurately is one of the technological keys for the generating and testing of optical aspherical surfaces. This paper presents a new algorithm for solving the BFS of aspherical surfaces to suppress some deficiencies in the existing BFS algorithms. In the proposed approach  it is not only suitable for the conic surface  a BFS is constructed  but also for higher order aspheres. The obtained asphericity and material removal function is more suitable for the machining and test. (2012) Trans Tech Publications  which passes through both sides of endpoints in the section o -?xy of the aspherical surfaces  Switzerland.  the center of the BFS is shifted along the x-axis  and its radius of curvature is automatically computed. The variable step size method is proposed to speed up the convergence of the iteration. Through numerically solving the BFS of conic and cubic surface  the advantages of the proposed approach are verified. The results show that the proposed approach is of rapid convergence  and high accuracy  
TOXICITY OF SHORT-TERM COPPER EXPOSURE TO EARLY LIFE STAGES OF RED SEA BREAM, PAGRUS MAJOR 期刊论文  OAI收割
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY, 2010, 卷号: 29, 期号: 9, 页码: 2044-2052
作者:  
Cao, Liang;  Huang, Wei;  Liu, Jinhu;  Ye, Zhenjiang;  Dou, Shuozeng
收藏  |  浏览/下载:27/0  |  提交时间:2015/07/20
Toxicity of short-term copper exposure to early life stages of red sea bream, pagrus major 期刊论文  iSwitch采集
Environmental toxicology and chemistry, 2010, 卷号: 29, 期号: 9, 页码: 2044-2052
作者:  
Cao, Liang;  Huang, Wei;  Liu, Jinhu;  Ye, Zhenjiang;  Dou, Shuozeng
收藏  |  浏览/下载:41/0  |  提交时间:2019/05/10
A weighted rank-sum procedure for comparing samples with multiple endpoints 期刊论文  OAI收割
STATISTICS AND ITS INTERFACE, 2009, 卷号: 2, 期号: 2, 页码: 197-201
作者:  
Li, Qizhai;  Liu, Aiyi;  Yu, Kai;  Yu, Kai F.
  |  收藏  |  浏览/下载:23/0  |  提交时间:2018/07/30
A segment detection method based on improved Hough transform (EI CONFERENCE) 会议论文  OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
Yao Z.-J.
收藏  |  浏览/下载:24/0  |  提交时间:2013/03/25
Hough transform is recognized as a powerful tool in shape analysis which gives good results even in the presence of noise and the disconnection of edge. However  3. applying the standard Hough transform equation to every point of the input image edge  4. according to the local threshold  6. merging the segments whose extreme points are near. Experiment results show the approach not only can recognize regular geometric object but also can extract the segment feature of real targets in complex environment. So the proposed method can be used in the target detection of complicated scenes  traditional Hough transform can only detect the lines  2. quantizing the parameter space  and extracting a group of maximums according to the global threshold  eliminating spurious peaks which are caused by the spreading effects  and will improve the precision of tracking.  cannot give the endpoints and length of the line segments and it is vulnerable to the quantization errors. Based on the analysis of its limitations  Hough transform has been improved in order to detect line segment feature of targets. The algorithm aims to avoid the loss of spatial information  as well as to eliminate the spurious peaks and fix on the line segments endpoints accurately  5. fixing on the endpoints of the segments according to the dynamic clustering rule  which can expediently be used for the description and classification of regular objects. The method consists of 6 steps: 1. setting up the image  parameter and line-segment spaces