检索结果-南通市图书馆

Evaluating Mission-Oriented Network Reliability via simulation test

在线全文

cnki会议

学校读者我要写书评

暂无评论

Evaluating Mission-Oriented Network Reliability via Simulati...

2012 National Conference on Information Technology and Computer Science

作者： Mo Chen Department of Management National University of Defense Technology Changsha,Hunan 410073,China Yuejin Tan Department of Management National University of Defense Technology Changsha,Hunan 410073,China Hongzhong Deng Department of Management National University of Defense Technology Changsha,Hunan 410073,China

This paper proposed a simulated test method for evaluating mission-oriented network *** first defined the mission-network model and entity-capability ***,to test the mission-oriented network reliability,we employed a three-layer network,including mission-layer,sampling-layer and *** nodes were sampled from physical-layer based on the entity capability model while link were mapped from mission-layer based on the mission network *** investigate the effect of this testing method,we chose different entity-capability models to evaluate mission-oriented network reliability of a combat *** simulation result showed that entity-capabilities played an important role in missionoriented network reliability and the simulation test method could be used as an effective means for mission-oriented network reliability evaluating.

关键词： network system simulation test mission-oriented reliability

Automated simulation test Research of Autonomous Driving Based on Parameterized Scenarios

在线全文

cnki会议

学校读者我要写书评

暂无评论

Automated Simulation Test Research of Autonomous Driving Bas...

2019中国汽车工程学会年会

作者： Mo Chunmei Zhan Ziqi Liu Bing Zhou Yongfeng Dongfeng Nissan Technology Center Intelligent&Connected Vehicle Engineering Department

There are some difficulties in Autonomous Driving test on real road such as low test efficiency,less comprehensiveness and high *** method of Autonomous Driving based on parameterized scenario was presented in this paper aimed to deal with these *** of conventional Autonomous Driving test method were analyzed and summarized,and more nonnative Automated simulation test strategy was caried *** typical application scenarios of Autonomous Driving were build using the parameterized method,which are cutting in the highway,passing an intersection and parking in a parking lot,so as to verify its feasibility and high *** result shows that,Automated simulation method based on parameterized scenarios makes simulation more close to real conditions and more comprehensive,which could also be applied in dangerous and complex traffic scenario.

关键词： autonomous driving simulation test parameterized scenatio automated simulation test

Air pressure law of a reservoir constructed in karst sinkholes

在线全文

cnki会议

学校读者我要写书评

暂无评论

Journal of Mountain Science 2024年第3期21卷 1048-1057页

作者： YU Bo TAI Shengping ZHENG Kexun CHEN Shiwan HAN Xiao WANG Senlin ZUO Shuangying Power China Guiyang Engineering Corporation Limited Guiyang 550081China College of Resources and Environmental Engineering Key Laboratory of Karst Georesources and EnvironmentMinistry of EducationGuizhou UniversityGuiyang 550025China

Karst sinkholes with natural negative landform provide favorable conditions for the pumped storage reservoir construction for less excavation ***,the construction of the reservoir would plug the natural karst channels for water and air,which would cause remarkable air pressure in karst channels when the groundwater level fluctuates.A large laboratory simulation test was carried out to study the air pressure variation of a reservoir built on the karst *** air pressure in the karst channel and inside the model was monitored during the groundwater rising and falling *** showed that the variation of air pressure in the karst channel and the surrounding rock exhibited a high degree of *** air pressure increased rapidly at the initial stage of water level rising,followed by a slight decrease,then the air pressure increased sharply when the water level approached the top of the karst *** initial peak of air pressure and the final peak of air pressure were defined,and both air pressure peaks were linearly increasing with the water level rising *** negative air pressure was also analyzed during the drainage process,which was linearly correlated with the water level falling *** causes of air pressure variation in karst channels of a pumped storage reservoir built on the karst sinkhole were *** initial rapid increase,then slight decrease and final sudden increase of air pressure were controlled by the combined effects of air compression in karst channel and air seepage into the surrounding *** the drainage process,the instant negative air pressure and gradual recovering of air pressure were controlled by the combined effects of negative air pressure induced by water level falling and air supply from surrounding *** work could provide valuable reference for the reservoir construction in karst area.

关键词： simulation test Karst sinkhole Pumped storage reservoir Air pressure Flow rate

A study on dynamic response of slopes under wave action using simulation tests

在线全文

学校读者我要写书评

暂无评论

Journal of Chongqing University 2003年第1期2卷 46-48页

作者：包太 Engineering Chongqing University Chongqing 400045 P.R. China

After the erection of the Three Gorges Dam, the water level of Yangtze River will reach 175 m, and the average wave crest will be up to 1 m. Therefore the wave action cannot be neglected for the slope stability. Through simulation tests, the wave-induced dynamic response of the slope is analyzed. The soil body is taken as linear elastic body when it has a small deformation under the small wave action. Based on tests, the excess pore pressure and slope displacement under the loading in different wave period are analyzed. The ratio of dynamic strength and static strength to the breaking process of the slope is discussed. It is demonstrated that smaller wave period gives rise to a larger strain of the slope under the same stress. At different depth of water, different weakness effect on the stability of the soil slope is observed and the slope has an adaptability to the wave action to some extent.

关键词： wave action slope simulation test dynamic response

simulation of the dynamic disturbance characteristics of the soft sediment in the Diexi ancient dammed lake,China

在线全文

学校读者我要写书评

暂无评论

Journal of Mountain Science 2021年第4期18卷 990-1002页

作者： WANG Xiao-qun WEI Jie ZHAO Jia-kang ZHOU Zhou HUANG Xin College of Environment Geology and Civil Engineering Chengdu University of TechnologyChengdu 610059China State Key Laboratory of Geohazard Prevention and Geoenvironment Protection Chengdu University of TechnologyChengdu 610059China JSTI Group Nanjing 211100China

In an earlier study of the Diexi ancient dammed lake along the Minjiang River in Southwest China,10 disturbed layers with envelope and flame structures were found in more than 240 m of lacustrine *** this paper,the soft-sediment disturbances caused by earthquakes in the Diexi ancient dammed lake were studied based on field investigations and laboratory core observations.A two-to three-degree-of-freedom spring-type earthquake simulation vibration table was used to carry out disturbance tests on lacustrine sediments under different dynamic *** results support the following conclusions:(1)The disturbance layers in the lacustrine sediments were caused by strong earthquakes in the region.(2)The characteristics of the disturbance layers are related to the seismic parameters and the degree of sediment consolidation.(3)The greater the earthquake intensity is,the greater the disturbance amplitude is;moreover,the lower the consolidation degree is,the greater the disturbance amplitude.(4)The simulation tests verify that the disturbance layers in the sediments of the Diexi ancient dammed lake correspond to strong earthquakes in the *** results are valuable for ongoing palaeoseismic research in the region.

关键词： Ancient dammed lake Lacustrine sediment Soft sediment Palaeoearthquake simulation test

Motion Regular Analysis and Its simulation of the Rodless Drilling Unit's Guiding & Positioning Board

在线全文

学校读者我要写书评

暂无评论

Journal of Donghua University(English Edition) 2009年第1期26卷 31-35页

作者：胡长胜赵伟民马强 School of Mechatronics Engineering Harbin Institute of Technology School of Machinery Daqing Petroleum University

To analyze the stress of the guiding & positioning board and the effectiveness of the guiding & positioning device,according to guiding & positioning device's operational principle and structure,the guiding & positioning board's motion regular was analyzed by diagrammatical method based on 2 postulated *** about the working conditions' change,simulations in 5 different kinds of working conditions were done to check the correctness of the motion regulars obtained by diagrammatical *** results prove that the motion regulars are right,the postulated conditions have no effect on the obtained motion *** to the simulation results,the motion processs's characters were drawn out at the same time.

关键词： rodless drilling uint guiding & positioningdevice guiding & positioning board motion regular diagrammatical method simulation test

System Design For Aircraft Fuel Control And Maintenance test-bed

在线全文

学校读者我要写书评

暂无评论

System Design For Aircraft Fuel Control And Maintenance Test...

第26届中国控制与决策会议

作者： Zhang Chuntang Wang Shaokun College of Automation and Electronic Engineering Qingdao University of Science ＆ Technology

ISBN: (纸本)9781479937066

The fuel system is one of the most important component parts of aircraft and plays a vital role for the smooth implementation of the safety of aircraft mission. The platform uses computer software and hardware simulation technology（Making combination of software and hardware simulation which not only covers troubleshooting content requirements but also avoids assembling Air Material）.The working principle of the fuel control system,power check, troubleshooting and field repair process can be simulated by the system. So it could be utilized to train the students repairing ability and also as a meaningful assessment method to evaluate the trainees.

关键词： Aircraft fuel system Process control Troubleshooting simulation test

Evaluation Methodology of Computer Graphics Education for Visual Media Contents Production

在线全文

cnki会议

学校读者我要写书评

暂无评论

Evaluation Methodology of Computer Graphics Education for Vi...

7th China-Japan Joint Conference on Graphics Education

作者： Ayumi Miyai Tagiru Nakamura Computer Graphics Arts Society （CG-ARTS Society） Tokyo Japan Creative Lab. Katayanagi Advanced Research Laboratories Tokyo University of Technology

Computer Graphics (CG) are indispensable for visual media contents production of film, television program, game, music video, etc. Therefore, CG creators have knowledge and expertise including visual

关键词： CG education visual media contents evaluation method simulation test