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The Technical Scheme and Key Equipment for Solving the Difficult Technical Problems of Underground Radio Communications

Situ Mengtian

Strategic Study of CAE 2001, Volume 3, Issue 7,   Pages 64-69

Abstract: Two difficult tedhnical problems in underground radio communications, i.e. weak signal reception and counterlightning pulses interference are described, and ways to solve these problems are proposed .The design scheme of the telegraph terminal used for weak signal reception and counter lightning pulsesinterference is exhaustively studied.

Keywords： underground radio communications     weak signal reception     counter lightning interference    

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Technical Analysis and Construction of National Lightning Detecting Network

Xu Xiaofeng

Strategic Study of CAE 2002, Volume 4, Issue 5,   Pages 7-13

Abstract:

Lightning is a natural phenomenon that seriously affects the natural environment and human activitiesTherefore, it is of important social, economical and scientific value to detect the lightning effectivelyComparing with the developed countries, China has some gaps in the fields of lightning studying, forecastingIn this article, the mechanism of lightning and its influence are described.The present situation and the direction of lightning detecting technology at home and abroad are also

Keywords： lightning detecting     technical analysis     system construction    

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Elastoplastic frictional contact problem study on interference fits of compressor

ZHANG Hongwu, WU Changhua, LIAO Aihua

Frontiers in Energy 2008, Volume 2, Issue 3,   Pages 313-319 doi: 10.1007/s11708-008-0026-1

Abstract: A locomotive-type turbocharger compressor with 24 blades under combined centrifugal and interference-fitdecrease the difficulty of the assembly process and ensure the safety of the working state, the amount of interference

Keywords： computation     thickness     interference-fit     interference     unspecified    

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Laser interference fabrication of large-area functional periodic structure surface

Lei WANG, Zi-Han WANG, Yan-Hao YU, Hong-Bo SUN

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 4,   Pages 493-503 doi: 10.1007/s11465-018-0507-9

Abstract: The laser interference technique in particular has received attention because of its simplicity, lowHere, we reviewed the work on laser interference fabrication of large-area functional periodic structuresFor the common cases, four-beam interference and multi-exposure of two-beam interference were emphasizedThe relations between multi-beam interference and multi-exposure of two-beam interference were comparedPerspectives on future directions and applications for laser interference were presented.

Keywords： laser interference     four-beam interference     multi-exposure of two-beam interference     additive fabrication    

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Effect of counter current gas phase on liquid film

Shujuan LUO, Huaizhi LI, Weiyang FEI, Yundong WANG

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 2,   Pages 135-137 doi: 10.1007/s11705-009-0129-1

Abstract: The effect of counter current gas phase on the liquid film was taken into consideration.increased by 57% because of increasing liquid flow rate, while it decreased by 25% resulting from the counter

Keywords： counter current     liquid film     two phases     structured packings    

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Lightning Flashover Characteristics of a Full-Scale AC 500 kV Transmission Tower with Composite Cross Article

Qian Wang, Xidong Liang, Yufeng Shen, Shuming Liu, Zhou Zuo, Yanfeng Gao

Engineering 2023, Volume 23, Issue 4,   Pages 130-137 doi: 10.1016/j.eng.2021.09.021

Abstract: nbsp;kV model of a transmission tower with composite cross arms is manufactured and applied under a lightningThe tower’s lightning-withstand level is calculated based on the tower structure and the flashover

Keywords： Composite cross arms     Transmission tower     Lightning flashover     Streamer discharge     Lightning withstand    

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Construction and identification of lentiviral RNA interference vector of rat leptin receptor gene

Zhengjuan LIU, Jie BIAN, Yuchuan WANG, Yongli ZHAO, Dong YAN, Xiaoxia WANG

Frontiers of Medicine 2009, Volume 3, Issue 1,   Pages 57-60 doi: 10.1007/s11684-009-0003-z

Abstract: The aim of the present study was to construct the lentiviral RNA interference (RNAi) vector of rat OBRb

Keywords： receptors     leptin     RNA interference     lentivirus vector    

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Development of a cloud condensation nuclei (CCN) counter using a laser and charge-coupled device (CCD

Mikyung PARK, Jinkwan OH, Kihong PARK

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 3,   Pages 313-319 doi: 10.1007/s11783-011-0346-y

Abstract: A continuous flow streamwise thermal gradient cloud condensation nuclei (CCN) counter with an aerosolevaluated by comparing its measured number concentrations with those measured with a condensation particle counterThe CCN counter worked well in the particle number concentration range of 0.6–8000 #·cm and the minimumThe supersaturation in the CCN counter with varying temperature difference was determined by using size-selectedThe developed CCN counter was applied to investigate CCN activity of atmospheric ultrafine particles

Keywords： aerosol     cloud condensation nuclei (CCN) counter     ultrafine particle    

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with multi-walled carbon nanotubes: preparation, characterization, and application for electromagnetic interference

Jian LI,Caichao WAN

Frontiers of Agricultural Science and Engineering 2015, Volume 2, Issue 4,   Pages 341-346 doi: 10.15302/J-FASE-2015082

Abstract: In addition, the aerogels show a high electromagnetic interference (EMI) value of 19.4 dB.

Keywords： cellulose aerogels     carbon nanotubes     electromagnetic interference shielding     composites    

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Electromagnetic interference modeling and suppression techniques in variable-frequency drive systems

Le YANG, Shuo WANG, Jianghua FENG

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 3,   Pages 329-353 doi: 10.1007/s11465-018-0466-1

Abstract:

Electromagnetic interference (EMI) causes electromechanical damage to the motors and degrades the

Keywords： variable-frequency drive (VFD)     electromagnetic interference (EMI)     motor drive modeling     EMI noise suppression    

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Experimental study of aerodynamic interference effects on aerostatic coefficients of twin deck bridges

Zhiwen LIU , Zhengqing CHEN , Gao LIU , Xinpeng SHAO ,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 3,   Pages 292-298 doi: 10.1007/s11709-009-0048-8

Abstract: The aerodynamic interference effects on aerostatic coefficients of twin deck bridges with large spanand torque coefficients of windward and leeward decks are also affected slightly by the aerodynamic interferenceAnd the aerodynamic interference effects on lift and torque coefficients of twin decks can be neglected

Keywords： twin decks     aerodynamic interference effects     aerostatic coefficients     wind tunnel test    

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Thermodynamic performance experiment and cooling number calculation of a counter-flow spray humidifier

WANG Yuzhang, LI Yixing, WENG Shilie, WANG Yonghong

Frontiers in Energy 2008, Volume 2, Issue 1,   Pages 43-47 doi: 10.1007/s11708-008-0005-6

Abstract: An experimental investigation of the thermodynamic performance of a counter-flow spray humidifier was

Keywords： temperature increment     counter-flow     experimental investigation     temperature     water-gas    

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Calculation method of radial stress and deformation on conic threaded connections with interference fit

Shoujun CHEN, Qiang LI, Qi AN,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 3,   Pages 302-307 doi: 10.1007/s11465-010-0018-9

Abstract: calculation method for radial stress distribution and deformation on conic threaded connections with interferenceoffers a new way of calculating the radial stress and deformation on conic thread connections with interference

Keywords： conic threaded connections     interference fit     radial stress     deformation     finite element analysis (FEA)    

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Finite element modeling of counter-roller spinning for large-sized aluminum alloy cylindrical parts

Dawei ZHANG, Fan LI, Shuaipeng LI, Shengdun ZHAO

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 3,   Pages 351-357 doi: 10.1007/s11465-019-0528-z

Abstract: Counter-roller spinning (CRS), where the mandrel is replaced by rollers, is an effective means of manufacturing

Keywords： large-sized cylindrical part     counter-roller spinning     aluminum alloy     finite element method     distributed    

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The Development Situation, Future and Counter Measures of Remanufacturing Industry in China

Wen-qiang Liu,Jun-yuan Mo,Cheng-kui Gu

Frontiers of Engineering Management 2016, Volume 3, Issue 2,   Pages 123-131 doi: 10.15302/J-FEM-2016021

Abstract: Currently, resource supply and demand contradiction, and over-loaded environment capacity have become a bottleneck for sustainable economic development in China. Electro-mechanical products are approaching a peak of obsolescence, and massive abandoned electro-mechanical products are causing severe environmental pollution, huge waste of resources and potential safety hazard. Remanufacturing is repairing or modifying worn mechanical products using high-tech method, which buffers the contradiction between wasting and shortage of resources, and brings industry towards a comprehensive utilization of resource and environmental protection. As a new strategic industry, remanufacturing, which is highly coherent with the development strategy of the circular economy, is still in its infancy in China. This paper analyzes the developmental trends and problems of the remanufacturing industry in China, and proposes promoting measures based on the engineering practices of remanufacturing.

Keywords： remanufacturing     industry     measures     development    

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Title Author Date Type Operation

The Technical Scheme and Key Equipment for Solving the Difficult Technical Problems of Underground Radio Communications

Situ Mengtian

Journal Article

Technical Analysis and Construction of National Lightning Detecting Network

Xu Xiaofeng

Journal Article

Elastoplastic frictional contact problem study on interference fits of compressor

ZHANG Hongwu, WU Changhua, LIAO Aihua

Journal Article

Laser interference fabrication of large-area functional periodic structure surface

Lei WANG, Zi-Han WANG, Yan-Hao YU, Hong-Bo SUN

Journal Article

Effect of counter current gas phase on liquid film

Shujuan LUO, Huaizhi LI, Weiyang FEI, Yundong WANG

Journal Article

Lightning Flashover Characteristics of a Full-Scale AC 500 kV Transmission Tower with Composite Cross

Qian Wang, Xidong Liang, Yufeng Shen, Shuming Liu, Zhou Zuo, Yanfeng Gao

Journal Article

Construction and identification of lentiviral RNA interference vector of rat leptin receptor gene

Zhengjuan LIU, Jie BIAN, Yuchuan WANG, Yongli ZHAO, Dong YAN, Xiaoxia WANG

Journal Article

Development of a cloud condensation nuclei (CCN) counter using a laser and charge-coupled device (CCD

Mikyung PARK, Jinkwan OH, Kihong PARK

Journal Article

with multi-walled carbon nanotubes: preparation, characterization, and application for electromagnetic interference

Jian LI,Caichao WAN

Journal Article

Electromagnetic interference modeling and suppression techniques in variable-frequency drive systems

Le YANG, Shuo WANG, Jianghua FENG

Journal Article

Experimental study of aerodynamic interference effects on aerostatic coefficients of twin deck bridges

Zhiwen LIU , Zhengqing CHEN , Gao LIU , Xinpeng SHAO ,

Journal Article

Thermodynamic performance experiment and cooling number calculation of a counter-flow spray humidifier

WANG Yuzhang, LI Yixing, WENG Shilie, WANG Yonghong

Journal Article

Calculation method of radial stress and deformation on conic threaded connections with interference fit

Shoujun CHEN, Qiang LI, Qi AN,

Journal Article

Finite element modeling of counter-roller spinning for large-sized aluminum alloy cylindrical parts

Dawei ZHANG, Fan LI, Shuaipeng LI, Shengdun ZHAO

Journal Article

The Development Situation, Future and Counter Measures of Remanufacturing Industry in China

Wen-qiang Liu,Jun-yuan Mo,Cheng-kui Gu

Journal Article