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浏览/检索结果: 共11条，第1-10条 帮助

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Generating survey draft based on closeness of position distributions of key words 期刊论文  OAI收割
EXPERT SYSTEMS WITH APPLICATIONS, 2024, 卷号: 237, 页码: 18
作者:  Sun, Xiaoping;  Zhuge, Hai
  |  收藏  |  浏览/下载：3/0  |  提交时间：2024/12/06
Hydrodynamics of up-flow hybrid anaerobic digestion reactors with built-in bioelectrochemical system 期刊论文  OAI收割
JOURNAL OF HAZARDOUS MATERIALS, 2020, 卷号: 382, 页码: 1-21
作者:  Cui, Min-Hua;  Sangeetha, Thangavel;  Gao, Lei;  Wang, Ai-Jie
  |  收藏  |  浏览/下载：15/0  |  提交时间：2021/09/15
Assessment of drought evolution characteristics based on a nonparametric and trivariate integrated drought index 期刊论文  OAI收割
JOURNAL OF HYDROLOGY, 2019, 卷号: 579, 页码: 12
作者:  Zhang, Ying;  Huang, Shengzhi;  Huang, Qiang;  Leng, Guoyong;  Wang, Hao
  |  收藏  |  浏览/下载：46/0  |  提交时间：2020/05/19
The effects of topography on aboveground biomass and soil moisture at local scale in dryland grassland ecosystem, China 期刊论文  OAI收割
ECOLOGICAL INDICATORS, 2019, 卷号: 105, 页码: 107-115
作者:  Wei, Pei;  Pan, Xuebiao;  Xu, Lin;  Hu, Qi;  Zhang, Xuting
  |  收藏  |  浏览/下载：22/0  |  提交时间：2020/09/10
Earthquake-triggered landslides affecting a UNESCO Natural Site: the 2017 Jiuzhaigou Earthquake in the World National Park, China 期刊论文  OAI收割
JOURNAL OF MOUNTAIN SCIENCE, 2018, 卷号: 15, 期号: 7, 页码: 1412-1428
作者:  Wang Jiao;  Jin Wen;  Cui Yifei;  Zhang Weifeng;  Wu Chunhao
  |  收藏  |  浏览/下载：98/0  |  提交时间：2018/08/21
Using multi-source remote sensing data to classify larch plantations in Northeast China and support the development of multi-purpose silviculture 期刊论文  OAI收割
JOURNAL OF FORESTRY RESEARCH, 2018, 卷号: 29, 期号: 4, 页码: 889-904
作者:  Shang Guiduo;  Zhu Jiaojun;  Gao Tian;  Zheng Xiao;  Zhang Jinxin
  |  收藏  |  浏览/下载：10/0  |  提交时间：2021/02/02
Earthquake-triggered landslides affecting a UNESCO Natural Site: the 2017 Jiuzhaigou Earthquake in the World National Park, China 期刊论文  OAI收割
JOURNAL OF MOUNTAIN SCIENCE, 2018, 卷号: 15, 期号: 7, 页码: 1412-1428
作者:  Wang Jiao;  Jin Wen;  Cui Yi-fei;  Zhang Wei-feng;  Wu Chun-hao
  |  收藏  |  浏览/下载：58/0  |  提交时间：2020/09/29
Optimum design of laser encoding and decoding on laser beam-riding guidance (EI CONFERENCE) 会议论文  OAI收割
2nd International Conference on Frontiers of Manufacturing and Design Science, ICFMD 2011, December 11, 2011 - December 13, 2011, Taichung, Taiwan
作者:  Yang L.;  Yang L.
收藏  |  浏览/下载：33/0  |  提交时间：2013/03/25
Operating principle of laser beam-riding guidance was set forth. Based on the principle of spatial frequency-encoding  experimental results demonstrated that the receiver can receive correctly the encoded signal and can decode the signal  an optimum laser encoding mode was designed  measurement for the missdistance is feasible and all the performance parameters satisfy the demand. (2012) Trans Tech Publications  which can transfer continuous laser into pulse laser that represents different position information. Then the mathematic model of deviation from target is built  Switzerland.  a modified encoding pattern was presented  which is composed of two light paths crossed 90. Azimuth information of target is given in orthogonal coordinate system and deviation from target is linearity. As well as  characteristic distribution of spatial laser field is analyzed. Corresponding decoding mode was presented  by testing in 2 kilometers outdoor  
Nucleotide compositional asymmetry between the leading and lagging strands of eubacterial genomes 期刊论文  iSwitch采集
Research in microbiology, 2010, 卷号: 161, 期号: 10, 页码: 838-846
作者:  Qu, Hongzhu;  Wu, Hao;  Zhang, Tongwu;  Zhang, Zhang;  Hu, Songnian
收藏  |  浏览/下载：86/0  |  提交时间：2019/05/10
Influence of spatial temperature distribution on high accuracy interferometric metrology (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, April 26, 2010 - April 29, 2010, Dalian, China
作者:  Yang H.;  Zhang J.;  Zhang J.;  Zhang J.;  Yan F.
收藏  |  浏览/下载：27/0  |  提交时间：2013/03/25
We calculate the influence of temperature change on the refractive index of air  establish a model of air temperature distribution and analyze the effect of different temperature distribution on the high accuracy interferometric metrology. First  a revised Edlen formula is employed to acquire the relation between temperature and refractive index of air  followed by introducing the fixed temperature gradient distribution among the spatial grid within the optical cavity between the reference flat and the test flat of the Fizeau interferometer  accompanied by a temperature change random function within each grid. Finally  all the rays through the air layer with different incident angles are traced by Matlab program in order to obtain the final output position  angle and OPD for each ray. The influence of different temperature distribution and the length of the optical cavity in on the testing accuracy can be analyzed through the RMS value that results from repeatable rays tracing. As a result  the horizontal distribution (vertical to optical axis) has a large effect on the testing accuracy. Thus  to realize the high accuracy figure metrology  the horizontal distribution of temperature must be rigorously controlled as well as to shorten the length of the optical cavity to a large extent. The results from our simulation are of great significant for the accuracy analysis of interferometric testing and the research of manufacturing a interferometer. 2010 Copyright SPIE - The International Society for Optical Engineering.