CORC

浏览/检索结果: 共12条,第1-10条 帮助

已选(0)清除 条数/页:   排序方式:
Assessments of 16 Exploited Fish Stocks in Chinese Waters Using the CMSY and BSM Methods 期刊论文
FRONTIERS IN MARINE SCIENCE, 2020, 卷号: 7, 页码: 10
作者:  Zhai, Lu;  Liang, Cui;  Pauly, Daniel
收藏  |  浏览/下载:16/0  |  提交时间:2021/04/12
Transjugular Intrahepatic Portosystemic Shunt:The Impact of Portal Venous Pressure Declines on Shunt Patency and Clinical Efficacy 期刊论文
ACADEMIC RADIOLOGY, 2019, 卷号: 26, 期号: 2
作者:  Wan, Yue-Meng;  Li, Yu-Hua;  Xu, Zhi-Yuan;  Wu, Hua-Mei;  Wu, Xi -Nan
收藏  |  浏览/下载:15/0  |  提交时间:2019/12/04
The Effect of Neonicotinoid Insecticide and Fungicide on Sugar Responsiveness and Orientation Behavior of Honey Bee (Apis mellifera) in Semi-Field Conditions 期刊论文
INSECTS, 2018, 卷号: 9, 期号: 4, 页码: -
作者:  Jiang, Xingchuan;  Wang, Zhengwei;  He, Qibao;  Liu, Qiongqiong;  Li, Xinyang
收藏  |  浏览/下载:33/0  |  提交时间:2019/04/22
Changes of flowering phenology and flower size in rosaceous plants from a biodiversity hotspot in the past century 期刊论文
SCIENTIFIC REPORTS, 2016, 卷号: 6, 期号: 0, 页码: 28302
作者:  Yu, Q (Yu, Qin);  Tian, B (Tian, Bin);  Yang, YP (Yang, Yong-Ping);  Duan, YW (Duan, Yuan-Wen);  Yang, YP
收藏  |  浏览/下载:15/0  |  提交时间:2017/09/27
Filling a gap in the distribution of Batrachochytrium dendrobatidis: evidence in amphibians from northern China. 期刊论文
Dis Aquat Organ, 2016, 卷号: Vol.118 No.3, 页码: 259-265
作者:  Yan,Shaofei;  Wang,Supen;  Li,Yiming;  Soto-Azat,Claudio;  Yang,Xuejiao
收藏  |  浏览/下载:19/0  |  提交时间:2019/04/22
Selective extinction of Triassic marine reptiles during long-term sea-level changes illuminated by seawater strontium isotopes 期刊论文
palaeogeography palaeoclimatology palaeoecology, 2014
Kelley, Neil P.; Motani, Ryosuke; Jiang, Da-yong; Rieppel, Olivier; Schmitz, Lars
收藏  |  浏览/下载:4/0  |  提交时间:2015/11/11
Effect of soft-iron impellers on the von Kármán–sodium dynamo 期刊论文
Physical review, E. Statistical, nonlinear, and soft matter physics, 2014, 期号: 1, 页码: 013012-1-013012-7
作者:  Mingtian Xu
收藏  |  浏览/下载:3/0  |  提交时间:2019/12/17
Effect of Different Fertilizer Application on the Soil Fertility of Paddy Soils in Red Soil Region of Southern China SCI/SSCI论文
2012
Dong W. Y.; Zhang X. Y.; Wang H. M.; Dai X. Q.; Sun X. M.; Qiu W. W.; Yang F. T.
收藏  |  浏览/下载:29/0  |  提交时间:2014/12/25
The ship-borne infrared searching and tracking system based on the inertial platform (EI CONFERENCE) 会议论文
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications, May 24, 2011 - May 24, 2011, Beijing, China
Li Y.; Zhang H.
收藏  |  浏览/下载:26/0  |  提交时间:2013/03/25
As a result of the radar system got interferenced or in the state of half silent  it can cause the guided precision drop badly In the modern electronic warfare  therefore it can lead to the equipment depended on electronic guidance cannot strike the incoming goals exactly. It will need to rely on optoelectronic devices to make up for its shortcomings  but when interference is in the process of radar leading  especially the electro-optical equipment is influenced by the roll  pitch and yaw rotation  it can affect the target appear outside of the field of optoelectronic devices for a long time  so the infrared optoelectronic equipment can not exert the superiority  and also it cannot get across weapon-control system "reverse bring" missile against incoming goals. So the conventional ship-borne infrared system unable to track the target of incoming quickly  the ability of optoelectronic rivalry declines heavily.Here we provide a brand new controlling algorithm for the semi-automatic searching and infrared tracking based on inertial navigation platform. Now it is applying well in our XX infrared optoelectronic searching and tracking system. The algorithm is mainly divided into two steps: The artificial mode turns into auto-searching when the deviation of guide exceeds the current scene under the course of leading for radar.When the threshold value of the image picked-up is satisfied by the contrast of the target in the searching scene  the speed computed by using the CA model Least Square Method feeds back to the speed loop. And then combine the infrared information to accomplish the closed-loop control of the infrared optoelectronic system tracking. The algorithm is verified via experiment. Target capturing distance is 22.3 kilometers on the great lead deviation by using the algorithm. But without using the algorithm the capturing distance declines 12 kilometers. The algorithm advances the ability of infrared optoelectronic rivalry and declines the target capturing time by using semi-automatic searching and reliable capturing-tracking  when the lead deviation of the radar is great. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).  
Dynamic optimum design and analysis of cam wave generator for harmonic gear drive (EI CONFERENCE) 会议论文
2011 International Conference on Information and Automation, ICIA 2011, June 6, 2011 - June 8, 2011, Shenzhen, China
Xiao Q.; Han X.; Jia H.
收藏  |  浏览/下载:16/0  |  提交时间:2013/03/25
Mathematical models of structural optimization were established for the cam wave generator  then a conceptual model  by integrally taking its static and dynamic performance into consideration  which satisfied the model acted by four concentrated forces  while the dynamic optimum design was carried out. The topology optimization of the cam wave generator was performed based on artificial material density method  was obtained. And the size optimization of the cam wave generator was also executed based on the zero-order method in software Ansys after setting up its parameterized model. The optimized results indicate that its final volume declines to 1284.217mm3 from its 1397.830mm3  which reduced by 42.18% than the original volume of cam (2221.224mm3). Simultaneously  the static analysis and modal analysis were implemented  and the results show that the static and dynamic performance complies with the design requirements  proving that the results of dynamic optimum design are reasonable. The optimized results in paper are realizable in engineering. And the study method provides not only a reference to decreasing design mass and lowering inertia of the cam wave generator  but also an important basis of lightweight design of harmonic gear drive. 2011 IEEE.  


©版权所有 ©2017 CSpace - Powered by CSpace