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Machine learning based altitude-dependent empirical LoS probability model for air-to-ground communications Research Article

Minghui PANG, Qiuming ZHU, Zhipeng LIN, Fei BAI, Yue TIAN, Zhuo LI, Xiaomin CHEN

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 9,   Pages 1378-1389 doi: 10.1631/FITEE.2200041

Abstract: However, it is challenging to predict the LoS probability of air-to-ground (A2G) communication scenarios

Keywords： Line-of-sight probability model     Air-to-ground channel     Machine learning     Ray tracing    

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Channelmeasurements and models for 6G: current status and future outlook Review Articles

Jian-hua ZHANG, Pan TANG, Li YU, Tao JIANG, Lei TIAN

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 1,   Pages 39-61 doi: 10.1631/FITEE.1900450

Abstract: A wireless propagation channel is the transmission medium to transfer information between the transmitterThus, conducting channel research is a prerequisite to designing 6G wireless communication systems.technologies and applications for 6G, such as terahertz communication, industrial Internet of Things, space-air-groundThen, we give a review of channel measurements and models for the technologies and applications.Finally, the outlook for 6G channel measurements and models is discussed.

Keywords： Channel measurements     Channel models     Sixth generation     Terahertz     Industrial Internet of Things     Space-air-ground    

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Ground-to-Air Radar Jamming Syste——Functions in Current Local Conflict and Its Development Trend

Zhang Xixiang

Strategic Study of CAE 2000, Volume 2, Issue 7,   Pages 55-65

Abstract:

This paper describes the development of the ground-to-air jammer.Initially this equipment can only jam the bomb-aiming radar, but now it has evolved into a ground-to-airIf they had got the ground-to-air jamming equipment deployed in their air defense system, they would

The paper concludes that the ground-to-air jamming system plays a very important role in theThe ground-to-air jamming system will have a bright future.

Keywords： ground-to-air jamming system     functions in current conflict     development trend    

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Design Feature and Evolution of Dynamic Air Cushion Wing-in-ground Effect Craft

Hui Liang,wu Chengjie,xie Younong,Peng Guihua

Strategic Study of CAE 2000, Volume 2, Issue 3,   Pages 67-72

Abstract:

The design features and the evolution of the Amphibious wing in Ground Effect Craft (AWIG) (also socalled Dynamic Air Cushion Wing-in-Ground Effect Craft, DACWIG) in China are described in this paperof WIG, with high speed, fine seaworthiness, marvelous amphibious, and being able to fly in/beyond groundeffect zone and softly land on ground, as well as maneuver in air (just like the Russian novel type

Keywords： dynamic air cushion     amphibious     wing-in-ground effect craft     feature     evolution    

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Fluid-Aerodynamics Performance Investigation of Dynamic Air Cushion Wing-in-ground Effect Craft

Yun Liang,Wu Chengjie,Xie Younong

Strategic Study of CAE 2000, Volume 2, Issue 4,   Pages 48-52

Abstract: features and difficulties of the craft design as well as the experimental investigation of DACWIG (Dynamic AirCushion Wing-in-ground Effect Craft) are described in this paper.

Keywords： dynamic air cushion     wing in ground effect craft     performance    

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Development Strategy for Air–Ground Collaborative Multi-Modal Intelligent Robot System

Huang Qiang, Meng Fei, Yu Zhangguo, Lin Defu, Xu Bin, Duo Yingxian

Strategic Study of CAE 2021, Volume 23, Issue 5,   Pages 116-121 doi: 10.15302/J-SSCAE-2021.05.015

Abstract:

An air–ground collaborative multi-modal intelligent robot systemcan adapt to air and ground environments, has multimodal characteristic and advanced intelligence, andConsidering the major demand for developing the air–ground collaborative multi-modal intelligentChina currently lags behind the international advanced level in terms of the air–ground collaborativeResearch shows that the air–ground collaborative multi-modal intelligent robot system can be integrated

Keywords： intelligent robot     air–ground collaboration     multi-modal     artificial intelligence    

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Effect of Position of Air Supply Opening on the Efficiency of Smoke Extraction in an Underground LongChannel

Hu Longhua,Huo Ran,Li Yuanzhou,Yi Liang,Wang Haobo

Strategic Study of CAE 2005, Volume 7, Issue 5,   Pages 90-92

Abstract:

A set of full scale contrast tests, with different relative positions of air supply opening and smokeexhaust opening, were conducted in an 88 m long underground corridor to study the effect of position of airsupply opening on the efficiency of smoke extraction in a long channel.Results showed that the rule for designing the relative positions of air supply openings and smoke exhaustopenings or operating them in a long channel should be “Smoke exhaust near the fire with air supply

Keywords： air supply position     smoke extraction efficiency     underground long channel     full scale test     fire    

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Scientific and Technological Issues for the Intelligent Management of Air Traffic

Zhu Yongwen , Chen Zhijie , Pu Fan , Wang Qi

Strategic Study of CAE 2023, Volume 25, Issue 5,   Pages 185-191 doi: 10.15302/J-SSCAE-2023.07.010

Abstract:

Air traffic is exhibiting the characteristics of large flow, strong couplingThis study reviews the current and future demand for air traffic management and analyzes the challengesfaced by traditional air traffic management from the aspects of traffic control, airspace managementalso summarizes four basic scientific problems: interaction mechanism and mode between aircraft and aircontrol infrastructure, air– ground coordinated control of aircraft intervals based on acceptable

Keywords： air traffic     intelligent management     artificial intelligence     digital airspace     air–ground autonomous    

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Impact of Recent Regional Wars on Requirements of Ground based Air Defense Radars

Peng Jiating

Strategic Study of CAE 1999, Volume 1, Issue 2,   Pages 19-23

Abstract:

In light of tasks creating before ground based air defense radar in recent regional conflicts, thisdefense radars, and analyzes briefly the position and function of ground based mid and low altitudedefense systems in modem air defense.The author believes that these air defense systems can play an important role in modem air defense andThe article concludes the new requirement of ground based mid and low altitude defense radars, mainly

Keywords： low altitude     air defense radar     anti-stealth     anti-cruise missile     anti-antiradiation missile    

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Mechanical responses of multi-layered ground due to shallow tunneling with arbitrary ground surface load

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 5,   Pages 745-762 doi: 10.1007/s11709-023-0935-4

Abstract: An analytical model based on complex variable theory is proposed to investigate ground responses dueto shallow tunneling in multi-layered ground with an arbitrary ground surface load.The ground layers are assumed to be linear-elastic with full-stick contact between them.in multi-layered ground; thus, it can be used with assurance to estimate the ground movement and surfacecomposite ground.

Keywords： analytical model     mechanical response     multi-layered ground     shallow tunneling     ground surface load    

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A cellphone-based colorimetric multi-channel sensor for water environmental monitoring

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 12, doi: 10.1007/s11783-022-1590-z

Abstract:

● A cellphone-based colorimetric multi-channel sensor for in-field

Keywords： Colorimetric analysis     Multi-channel sensor     Cellphone     Water quality indexes     Environmental monitoring    

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Analysis of nonlinear channel friction inverse problem

CHENG Weiping, LIU Guohua

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 2,   Pages 205-210 doi: 10.1007/s11709-007-0024-0

Abstract: decomposition (SVD) for general inverse matrices and the optimization algorithm are used to solve the channel

Keywords： singular     SVD     second-order     covariance     Theoretical    

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R&D of the ground-coupled heat pump technology in China

Nairen DIAO, Ping CUI, Junhong LIU, Zhaohong FANG,

Frontiers in Energy 2010, Volume 4, Issue 1,   Pages 47-54 doi: 10.1007/s11708-009-0080-3

Abstract: The ground-coupled heat pump (GCHP) systems have been identified as one of the best sustainable energyNew models are presented for efficient thermal analysis of ground heat exchangers, of which one- andtwo-dimensional solid cylindrical source models and their analytical solutions are devised to deal with pile ground

Keywords： ground source heat pump     ground heat exchanger     HVAC     China    

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INTERACTIONS BETWEEN ABOVE AND BELOW GROUND PLANT STRUCTURES: MECHANISMS AND ECOSYSTEM SERVICES

Frontiers of Agricultural Science and Engineering 2022, Volume 9, Issue 2,   Pages 197-213 doi: 10.15302/J-FASE-2021433

Abstract:

Interactions between above and below ground parts of plants can be considered under the (overlappingSolar energy powers photosynthesis and transpiration by above ground structures, and drives most wateruptake through roots and supplies energy as organic matter to below ground parts, including diazotrophicNO3– assimilation of above ground parts requires organic N transportInteraction of above and below ground plant parts is an important component of the ecosystem service

Keywords： aerenchyma / carbon accumulation / hormones / phloem / xylem    

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Shanghai center project excavation induced ground surface movements and deformations

Guolin XU, Jiwen ZHANG, Huang LIU, Changqin REN

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 1,   Pages 26-43 doi: 10.1007/s11709-017-0439-1

Abstract: The following main items related to ground surface movements and deformations were collected: (1) wallsand circumferential soils lateral movements; (2) peripheral soil deflection in layers and ground settlements

Keywords： deep excavation     foundation pit     soft clay     top-down method     field observation     ground surface movements     ground    

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Title Author Date Type Operation

Machine learning based altitude-dependent empirical LoS probability model for air-to-ground communications

Minghui PANG, Qiuming ZHU, Zhipeng LIN, Fei BAI, Yue TIAN, Zhuo LI, Xiaomin CHEN

Journal Article

Channelmeasurements and models for 6G: current status and future outlook

Jian-hua ZHANG, Pan TANG, Li YU, Tao JIANG, Lei TIAN

Journal Article

Ground-to-Air Radar Jamming Syste——Functions in Current Local Conflict and Its Development Trend

Zhang Xixiang

Journal Article

Design Feature and Evolution of Dynamic Air Cushion Wing-in-ground Effect Craft

Hui Liang,wu Chengjie,xie Younong,Peng Guihua

Journal Article

Fluid-Aerodynamics Performance Investigation of Dynamic Air Cushion Wing-in-ground Effect Craft

Yun Liang,Wu Chengjie,Xie Younong

Journal Article

Development Strategy for Air–Ground Collaborative Multi-Modal Intelligent Robot System

Huang Qiang, Meng Fei, Yu Zhangguo, Lin Defu, Xu Bin, Duo Yingxian

Journal Article

Effect of Position of Air Supply Opening on the Efficiency of Smoke Extraction in an Underground LongChannel

Hu Longhua,Huo Ran,Li Yuanzhou,Yi Liang,Wang Haobo

Journal Article

Scientific and Technological Issues for the Intelligent Management of Air Traffic

Zhu Yongwen , Chen Zhijie , Pu Fan , Wang Qi

Journal Article

Impact of Recent Regional Wars on Requirements of Ground based Air Defense Radars

Peng Jiating

Journal Article

Mechanical responses of multi-layered ground due to shallow tunneling with arbitrary ground surface load

Journal Article

A cellphone-based colorimetric multi-channel sensor for water environmental monitoring

Journal Article

Analysis of nonlinear channel friction inverse problem

CHENG Weiping, LIU Guohua

Journal Article

R&D of the ground-coupled heat pump technology in China

Nairen DIAO, Ping CUI, Junhong LIU, Zhaohong FANG,

Journal Article

INTERACTIONS BETWEEN ABOVE AND BELOW GROUND PLANT STRUCTURES: MECHANISMS AND ECOSYSTEM SERVICES

Journal Article

Shanghai center project excavation induced ground surface movements and deformations

Guolin XU, Jiwen ZHANG, Huang LIU, Changqin REN

Journal Article