中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页
机构
成果
学者
登录
注册
登陆
×
验证码:
换一张
忘记密码?
记住我
×
校外用户登录
CAS IR Grid
机构
长春光学精密机械与物... [2]
南海海洋研究所 [1]
金属研究所 [1]
青海盐湖研究所 [1]
中国科学院大学 [1]
地球化学研究所 [1]
更多
采集方式
OAI收割 [6]
iSwitch采集 [1]
内容类型
期刊论文 [5]
会议论文 [2]
发表日期
2023 [1]
2014 [1]
2012 [1]
2010 [2]
2006 [2]
学科主题
Geoscience... [1]
环境地球化学 [1]
筛选
浏览/检索结果:
共7条,第1-7条
帮助
条数/页:
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
排序方式:
请选择
题名升序
题名降序
提交时间升序
提交时间降序
作者升序
作者降序
发表日期升序
发表日期降序
Influence of Component Size on the Corrosion Behavior of Ti6Al4V Alloy Fabricated by Electron Beam Powder Bed Fusion
期刊论文
OAI收割
ACTA METALLURGICA SINICA-ENGLISH LETTERS, 2023, 页码: 10
作者:
Zheng, Hongyu
;
Gai, Xin
;
Bai, Yun
;
Hou, Wentao
;
Li, Shujun
  |  
收藏
  |  
浏览/下载:19/0
  |  
提交时间:2024/01/07
Electron beam powder bed fusion
Ti6Al4V alloy
Corrosion resistance
Component size
Polarisation
Evaluation of trace elements and identification of pollution sources in particle size fractions of soil from iron ore areas along the Chao River
期刊论文
OAI收割
Journal of Geochemical Exploration, 2014, 卷号: 138, 期号: 1, 页码: 33-49
Fei Qin
;
Hongbing Ji
;
Qian Li
;
Xinyue Guo
;
Lei Tang
;
Jinguo Feng
收藏
  |  
浏览/下载:33/0
  |  
提交时间:2016/01/08
Soil
Size fraction
Cluster analysis
Principal component analysis
Enrichment factor
Potential ecological hazard index
Distinguishing aeolian signature from lacustrine sediments of the Qaidam Basin in northeastern Qinghai-Tibetan Plateau and its palaeoclimatic implications
期刊论文
OAI收割
AEOLIAN RESEARCH, 2012, 卷号: 4, 页码: 17-30
作者:
An, FuYuan
;
Ma, HaiZhou
;
Wei, HaiCheng
;
Lai, ZhongPing
  |  
收藏
  |  
浏览/下载:54/0
  |  
提交时间:2018/06/20
Qinghai-tibetan Plateau (Qtp)
Qaidam Basin
Saparating Aeolian Component From Lacustrine Sediments
Grain Size And Geochemistry Analysis
LAndform Process And Environmental Change
East Asian Winter Monsoon (Eawm)
Miniaturize photoelectric stable platform (EI CONFERENCE)
会议论文
OAI收割
2010 International Conference on Computer Application and System Modeling, ICCASM 2010, October 22, 2010 - October 24, 2010, Shanxi, Taiyuan, China
Xue W.-Q.
;
Wang Y.-Y.
;
Dai M.
收藏
  |  
浏览/下载:79/0
  |  
提交时间:2013/03/25
In order to reduce the size and weight of the gimbal in a traditional stable platform and correct the disadvantage in size of the payload
the paper first improves the gimbal which is an important component of a stable photoelectric platform
that also is an important factor in affecting the size and weight of a stability platform. In this paper
a closed-form solution of 3-DOF manipulator is designed according mechanical arm design principles. This manipulator is formed by a three joint axes whose extended line is intersected at one point. A standard orthogonal coordinate system is set up for each rod in the manipulator. And then
rotation transformation matrix expression is obtained. At last in this paper
the manipulator arm-shaped method for solving solutions is description
and also
each parameter of the gimbal is calculated when the photoelectric detection devices at bottom reach the expected position. Test results show that the photoelectric stability platform with gimbal we designed is smaller
lighter and simpler than that traditional. Also
the packaging and size of the photoelectric will not be affected with this open structure. 2010 IEEE.
Soybean yield and yield component distribution across the main axis in response to light enrichment and shading under different densities
期刊论文
iSwitch采集
Plant soil and environment, 2010, 卷号: 56, 期号: 8, 页码: 384-392
作者:
Liu, B.
;
Liu, X. B.
;
Wang, C.
;
Li, Y. S.
;
Jin, J.
收藏
  |  
浏览/下载:35/0
  |  
提交时间:2019/05/10
Light enrichment
Shading
Yield component
Seed size
An improved two-dimensional entropy method for star trail tracing in deep sky (EI CONFERENCE)
会议论文
OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
作者:
Wang Y.-J.
;
Yao Z.-J.
收藏
  |  
浏览/下载:32/0
  |  
提交时间:2013/03/25
The trace of star trail is an important component of deep sky detection. The stars are low contrast targets
and their self-rotation will make their brightness change in cycle. Above all
the trail trace is vulnerable to the block and disturbance of other stars. Traditional one-dimensional maximum entropy thresholding algorithm is vulnerable to the noise
and the calculation of two-dimensional entropy methods is too large and takes too much time. This paper proposes an improved two-dimensional entropy threshold algorithm. We use recursion iteration method to eliminate the redundancy calculation
and reduce the size of two-dimensional histogram based on the deep sky stars characteristic
such as low contrast
fuzziness and the centralized histogram. We also combine our algorithm with the space trail trace model to forecast the star trace. Experiments results show
when the star are blocked or they turn dark
the method still can well extrapolate the star trace. Our method improves the capability of trailing the ebb and small star
and increases the precision of tracing. It is also robust to the noise
so there is a good application foreground for the method.
East Asia Winter Monsoon changes inferred from environmentally sensitive grain-size component records during the last 2300 years in mud area southwest off Cheju Island, ECS
期刊论文
OAI收割
SCIENCE IN CHINA SERIES D-EARTH SCIENCES, 2006, 卷号: 49, 期号: 6, 页码: 604-614
Xiang, R
;
Yang, ZS
;
Saito, Y
;
Guo, ZG
;
Fan, DJ
;
Li, YH
;
Xiao, SB
;
Shi, XF
;
Chen, MH
收藏
  |  
浏览/下载:43/0
  |  
提交时间:2011/07/03
East China Sea
mud area
environmentally sensitive grain-size component
East Asia Winter
Monsoon
little Ice Age
Late Holocene