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Development of a Remotely Controlled Testing Platform with Low-drag Air-ventilated Hull 被引量:3
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作者 Konstantin I. Matveev Nicholaus I. Perry Alexander W. Mattson Christopher S. Chaney 《Journal of Marine Science and Application》 CSCD 2015年第1期25-29,共5页
This paper addresses the development and testing of a remotely controlled boat platform with an innovative air-ventilated hull. The application of air cavities on the underside of ship hulls is a promising means for r... This paper addresses the development and testing of a remotely controlled boat platform with an innovative air-ventilated hull. The application of air cavities on the underside of ship hulls is a promising means for reducing hydrodynamic drag and pollutant emissions and increasing marine transportation efficiency. Despite this concept's potential, design optimization and high-performance operation of novel air-cavity ships remain a challenging problem. Hull construction and sensor instrumentation of the model-scale air-cavity boat is described in the paper. The modular structure of the hull allows for easy modifications, and an electric propulsion unit enables self-propelled operation. The boat is controlled remotely via a radio transmission system. Results of initial tests are reported, including thrust, speed, and airflow rate in several loading conditions. The constructed platform can be used for optimizing air-cavity systems and testing other innovative hull designs. This system can be also developed into a high-performance unmanned boat. 展开更多
关键词 air-cavity ship air-ventilated hull remotely controlled testing platform drag reduction hull construction unmanned surface vehicle
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THE BRIEF INTRODUCTION OF CHANGCHUN JINGYUETAN OPEN REMOTE SENSING STUDY AND TEST SITE OF THE CHINESE ACADEMY OF SCIENCES
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《遥感信息》 CSCD 1990年第A02期51-52,共2页
In 1979, the Changchun Jingyuetan Remote Sensing Study and Test Site (RSSTS)began its work, and it was formally established in 1985. The RSSTS is subordinated the Changchun Branch of Chinese Academy of Sciences and is... In 1979, the Changchun Jingyuetan Remote Sensing Study and Test Site (RSSTS)began its work, and it was formally established in 1985. The RSSTS is subordinated the Changchun Branch of Chinese Academy of Sciences and is supported by the Changchun Institute of Geography and Changchun Institute of Optics and Fine Machnics, Chinese Academy of Sciences. It is under the management of the Resource & Environment Bureau of Chinese Academy of Sciences and it is the study base of remote sensing basis and application tests in China. The RSSTS is situated in the Jingyuetan scenic spot of the suburbs of Changchun City, Jilin Province. It is located at 43°40′—43°50′N and 125°18′-125°18′E. 展开更多
关键词 THE BRIEF INTRODUCTION OF CHANGCHUN JINGYUETAN OPEN remote SENSING STUDY AND test SITE OF THE CHINESE ACADEMY OF SCIENCES work SITE
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TEST STUDY OF DETECTING OIL AND GAS BY USING REMOTE SENSING TECHNIQUE
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作者 Zhu Zhenhai, Zhang Jianzhong, Chen Baowen (Remote Sensing Application Institute, The Chinese Academy of Sciences) 《遥感信息》 CSCD 1990年第A02期37-38,共2页
Ⅰ The Indexes of Detecting Oil and Gas Resources The deeply buried reservoir which in a dynamic equilibrium state has a great pressure inside, and between it and earth surface there is a great difference of pressure.... Ⅰ The Indexes of Detecting Oil and Gas Resources The deeply buried reservoir which in a dynamic equilibrium state has a great pressure inside, and between it and earth surface there is a great difference of pressure. Therefore the hydrocarbon must spread and move vertically to the surface along the pressure gradient orientation. Hydrocarbons in the reservoir along some small rifts, cracks, joints and cleavages penetrate the overlying strata and seepage onto the surface. Thus the hydrocarbons become unvisble oil and gas signs. This process is called the phenomena of hydrocarbon microseepage of reservoir. Hydrocarbons microseepage in the process 展开更多
关键词 test STUDY OF DETECTING OIL AND GAS BY USING remote SENSING TECHNIQUE GAS
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A method for improving reliability communication of LVDS
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作者 SHI Qian LI Zhi-zhong 《Journal of Measurement Science and Instrumentation》 CAS CSCD 2018年第2期109-114,共6页
In order to ensure the reliability and accuracy of low voltage differential signaling(LVDS)used in remote test system serial data transmission,a(7,4)linear block code is proposed.At the expense of a certain effective ... In order to ensure the reliability and accuracy of low voltage differential signaling(LVDS)used in remote test system serial data transmission,a(7,4)linear block code is proposed.At the expense of a certain effective bandwidth,the bit error rate of data transmission is greatly reduced,and the reliability of data transmission is improved by adding monitoring symbols.The driver CLC001 and the adaptive equalizer CLC012 are used as hardwares to compensate the attenuation of the signal in the long line transmission,improve the signal integrity and ensure the reliability of data transmission.Proved by simulation on a shielded twisted pair cable with a total length of 100 m,this system realizes zero bit error transmission of the serial data at the rate of 240 Mbit/s. 展开更多
关键词 low voltage differential signalingm(LVDS)interface remote test system (7 4)linear block code
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High-Speed EMU TCMS Design and LCC Technology Research 被引量:2
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作者 Hongwei Zhao Zhiping Huang Ying Mei 《Engineering》 SCIE EI 2017年第1期122-129,共8页
This paper introduces the high-speed electrical multiple unit (EMO) life cycle, including the design, manufacturing, testing, and maintenance stages. It also presents the train control and monitoring system (TCMS)... This paper introduces the high-speed electrical multiple unit (EMO) life cycle, including the design, manufacturing, testing, and maintenance stages. It also presents the train control and monitoring system (TCMS) software development platform, the TCMS testing and verification bench, the EMU driving simulation platform, and the EMU remote data transmittal and maintenance platform. All these platforms and benches combined together make up the EMU life cycle cost (LCC) system. Each platform facilitates EMU LCC management and is an important part of the system. 展开更多
关键词 Electrical multiple unit Train control and monitoring system Train communication network Life cycle cost Development platform testing bench Simulation remote data transmittal
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