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Systematic design of snake arm maintainer in nuclear industry 期刊论文  OAI收割
FUSION ENGINEERING AND DESIGN, 2022, 卷号: 176
作者:  
Qin, Guodong;  Cheng, Yong;  Pan, Hongtao;  Zhao, Wenlong;  Shi, Shanshuang
  |  收藏  |  浏览/下载:71/0  |  提交时间:2022/05/16
碳氮稳定同位素比值在潮间带大型底栖动物组织间差异性研究 期刊论文  OAI收割
海洋学报, 2019, 卷号: 41, 期号: 4, 页码: 74-82
作者:  
李宝泉
  |  收藏  |  浏览/下载:33/0  |  提交时间:2020/06/17
潮间带  大型底栖动物  碳氮稳定同位素  食源和营养级分析  采样部位选取  intertidal zone  macrobenthos  carbon and nitrogen stable isotopes  food sources and trophic levels study,sampling parts  The technique of stable isotope analysis has been widely applied for the field of food web studies in recent years.However,few researches concerned about the impacts of different tissues used for analysis on the food web building.With the purpose of accuracy and comparability in the food web studies,the sampling tissues should be standardized.In this study,10macrobenthic species from the intertidal zone of the Yellow River Delta and Yantai were chosen as the target object to test the isotopic characteristic variations ofdelta~(13)C anddelta15 N at different body parts (whole bodies,muscles and gills).Our results show thatdelta~(13)C anddelta15 N values vary in different sampling tissues for most species,which indicates the different tissues used for analysis impact the food web building.To achieve a more accuracy and comparability result,suitable tissue should be primarily chosen for their food sources and trophic levels analysis.Namely,when the organism as predator,their muscles should first be chosen,for examples,adductor and foot muscles of mollusks,leg muscles of crabs and back muscles of fishes  when the organism as prey, most of their tissues,except for indigestible part(for polychaetes,the digestive tract contents should be removed) should be chosen for analysis on food sources and trophic levels of the secondary consumer,for example,whole soft parts of mollusks,the mixture of muscles and gills of crabs.  
Evaluation of spatial upscaling methods based on remote sensing data with multiple spatial resolutions (EI CONFERENCE) 会议论文  OAI收割
Satellite Data Compression, Communications, and Processing VIII, August 12, 2012 - August 13, 2012, San Diego, CA, United states
Ren R.; Gu L.; Cao J.; Chen H.; Sun J.
收藏  |  浏览/下载:34/0  |  提交时间:2013/03/25
In most applications of remote sensing data  special spatial information is required from a finer to a coarser spatial resolution with appropriate upscaling methods. The purpose of this paper is to compare and evaluate current spatial upscaling methods using MODIS remote sensing data with multiple spatial resolutions. In the research  Northeast China was selected as the study area. MODIS data with spatial resolutions of 250 m (2 bands) and 500 m (7 bands) were used as the test data. Through using the selected upscaling methods  the Band 1 and Band 2 data of MODIS were scaled up from 250 m to 500 m spatial resolution. On the basis of land cover characteristics of Northeast China  the MODIS data located in the study area was classified into the five land cover types  including water  grasslands  forests  farmlands and bare lands using maximum likelihood method. The land cover classification results were further compared with MODIS Land Cover Type product. Finally  Structural Similarity (SSIM) was selected to evaluate the effects of these upscaling methods. The research can provide more useful information for spatial scaling transformation in remote sensing data applications. 2012 SPIE.  
The research on test scheme of the digital Electromechanical Actuator based on CAN Bus (EI CONFERENCE) 会议论文  OAI收割
2011 2nd International Conference on Mechanic Automation and Control Engineering, MACE 2011, July 15, 2011 - July 17, 2011, Inner Mongolia, China
作者:  
Zhang J.;  Zhang J.;  Zhang Y.;  Zhang J.
收藏  |  浏览/下载:34/0  |  提交时间:2013/03/25
In order to realize the digital of Electromechanical Actuator(EMA) control system  the CAN Bus  which has efficient reliable performance and flexible network modes  works as data interface.The EMA test scheme is designed based on the CAN Bus.First of all  the microcontroller DSP with the CAN Bus works as the core of the EMA control system circuit boards.Then the CAN Bus test network is established with the EMA  Ground Test System and Autopilot computer.The function and self-check of the EMA canbe conveniently tested by the network and the result of the test canbe easily displayed in the PC.Finally  the CAN Bus test network is established with the EMA  the Frequency Characteristics Scanner and etc.The purpose is to test the performance of the EMA.The result of the test can be intuitively showed on the Frequency Characteristics Scanner.In a word  the application of the CAN bus provides a new method to test the EMA and reference to engineering the digital EMA  which has vital significance. 2011 IEEE.  
一种基于模型的并发系统测试目的描述 期刊论文  OAI收割
计算机工程与应用, 2007, 卷号: 43, 期号: 25, 页码: 105-110
刘大光; 林惠民; 吴鹏
  |  收藏  |  浏览/下载:18/0  |  提交时间:2010/08/24