Resource Type

Journal Article 129

Year

2023 7

2022 8

2021 9

2020 18

2019 8

2018 3

2017 2

2016 4

2015 1

2014 3

2013 2

2012 8

2011 10

2010 5

2009 3

2008 10

2007 7

2006 3

2005 2

2004 4

open ︾

Keywords

High pressure 2

anisotropy 2

drought 2

nutation 2

observation 2

rare earth 2

stability 2

2035 1

ANSYS 1

Adaptive observers 1

Additive manufacturing 1

Air-cooling structures 1

Ammonium nitrogen transport 1

Antarctic 1

Arctic 1

Assessment 1

Atmospheric pollution 1

Attitude determination system 1

August 1

open ︾

Search scope:

排序： Display mode:

General modeling and optimization technique for real-world earth observation satellite scheduling

Frontiers of Engineering Management   Pages 695-709 doi: 10.1007/s42524-023-0263-3

Abstract: Over the last two decades, many modeling and optimization techniques have been developed for earth observation

Keywords： earth observation satellite     scheduling     general technique     optimization algorithm     commercial constellation    

HTML PDF Collect

Development and application of earth observation and nation security

Zhou Zhixing,Wu Zhigang,Ji Yan

Strategic Study of CAE 2008, Volume 10, Issue 6,   Pages 28-32

Abstract:

The foreign development of the earth observation technology is brieflyThe development trend of the earth observation technology is described from the angle of nation securityBesides, the shortage of the earth observation system in our country is explained on the base of thediscussion on the development actuality of the earth observation technology in China.The earth observation system's effect is more and more important on the economy building and technology

Keywords： earth observation     nation security     space information    

HTML PDF Collect

Considerations on China' s Earth Observation Technology——Current Activities and Future Directions

Jiang Jingshan

Strategic Study of CAE 2006, Volume 8, Issue 11,   Pages 19-24

Abstract:

Earth Observation and application is one of the core missions in space technology development.Up to now, over thousands of spacecrafts have been launched, and earth observation satellites occupyThe development over decades shows that earth observation technology has become a strong trend aroundIn China, earth observation Technology started from 1970s.In China, earth observation technology will abide by the principle of “Demand Pulls, Technology

Keywords： China's space activities     earth observation technology     remote sensing     information processing    

HTML PDF Collect

Development Strategy of the New-Generation Effectiveness-Oriented Earth-Observation System

Zhao Wenbo, Li Shuai, Li Bo, Wei Zheng, Hou Yukui, Shen Zhiqiang, Yan Wei, Yu Longjiang, Gong Ran, Chen Hu, Qi Faren

Strategic Study of CAE 2021, Volume 23, Issue 6,   Pages 128-138 doi: 10.15302/J-SSCAE-2021.06.020

Abstract: Considering the future requirements of Earth observation for high quality, high benefit, and high efficiency, we adopt an effectiveness analysis method to study the Earth observation systems.We clarify the global development trends of Earth observation satellite systems and summarize the currentBased on this, we analyze the demand and challenges for an effectiveness-oriented Earth-observation systemand propose the development goals, components, and key tasks of the new-generation Earth-observation

Keywords： earth observation     effectiveness orientation     remote sensing satellite     application engineering     space–groundintegration     High Resolution Earth Eye Program    

HTML PDF Collect

The earth satellites observation analysis of natural environment change of nuclear test field in Lop

Hu Dongsheng,Zhang Huajing,Pang Xilei,Xu Bing,An Zhisheng,Zhang Guowei,Tian Xinhong

Strategic Study of CAE 2008, Volume 10, Issue 9,   Pages 31-38

Abstract:

Using earth satellite observation means, remote sensing information distilled

Keywords： earth satellite observation     the nuclear test field     the nuke explosion effect and the respond process    

HTML PDF Collect

Long-term observation of air pollution-weather/climate interactions at the SORPES station: a review and

Aijun Ding,Wei Nie,Xin Huang,Xuguang Chi,Jianning Sun,Veli-Matti Kerminen,Zheng Xu,Weidong Guo,Tuukka Petäjä,Xiuqun Yang,Markku Kulmala,Congbin Fu

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 5, doi: 10.1007/s11783-016-0877-3

Abstract: This work presents an overall introduction to the Station for Observing Regional Processes of the Earth

Keywords： Secondary pollution     Ground-based measurement     Planetary boundary layer meteorology     Earth system processes    

HTML PDF Collect

New stage and new tasks, development of microwave remote sensing in China

Jiang Jingshan,Wu Yirong,Liu Heguang,Dong Xiaolong

Strategic Study of CAE 2008, Volume 10, Issue 6,   Pages 10-15

Abstract:

The development of microwave remote sensing technologies and their applications during the past 30-40 years, both in worldwide and in China, are reviewed and analyzed. Emphases are paid on the analyses of development status and increasing demand for microwave remote sensing in China in future tens of years. Based on the analyses, several strategic considerations and frontier technologies essential to future development and application are proposed.

Keywords： microwave remote sensing     earth observation     space exploration     information processing    

HTML PDF Collect

Synchronous observation of rising soluble bubble through quiescent solution

Yifu ZHANG , Shuai TIAN , Weizhong LI , Yongchen SONG ,

Frontiers in Energy 2009, Volume 3, Issue 3,   Pages 307-312 doi: 10.1007/s11708-009-0028-7

Abstract: An experimental method using computer image processing technology (CIPT) was proposed to observe and investigate the velocity, deformation, heat and mass transfer, etc. of a rising soluble gas (CO) bubble through a quiescent hot water. A model was set up to describe the behavior of the bubble in a visual experimental system in which a high-speed camera rose instantaneously with the movement of the bubble. A series of trajectory videos about the bubble were recorded by a computer linked to the camera. The trajectory, volume changes and rate of mass transfer of the bubble were obtained by the CIPT. It is found that the single bubble follows a rolling trajectory at the initial stage when there is mass transfer. With the volume decreasing, the disturbed behavior of the bubble becomes tempered. When the rising velocity of the bubble reaches the maximum, the velocity is nearly at a constant. The experimental and analysis results show that this method is useful for the research on the mass transfer and the movement of rising bubbles in liquid.

Keywords： soluble bubble     mass transfer     synchronous observation     computer image processing    

HTML PDF Collect

Research Progress of Marine Scientific Equipment and Development Recommendations in China

Song Xiancang, Du Junfeng, Wang Shuqing, Li Huajun

Strategic Study of CAE 2020, Volume 22, Issue 6,   Pages 76-83 doi: 10.15302/J-SSCAE-2020.06.010

Abstract: addition, it provides reviews on the state-of-the-art techniques associated with the marine scientific observationplatforms, namely air–sea interface observation platform, mobile underwater observation platform, and seafloor observation network system, in the countries that are believed to lead the field, andthe marine remote-sensing satellites, marine research ships, deep-diving submersibles, and seafloor observation

Keywords： marine scientific equipment     deep-sea observation platform     air–sea interface observation     mobile underwaterobservation     seafloor observation network     equipment development    

HTML PDF Collect

Effect of earth reinforcement, soil properties and wall properties on bridge MSE walls

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 5,   Pages 1209-1221 doi: 10.1007/s11709-021-0764-2

Abstract: Mechanically stabilized earth (MSE) retaining walls are popular for highway bridge structures.They have precast concrete panels attached to earth reinforcement.The effects of pore pressure, soil cohesion, earth reinforcement type and length, breakage/slippage of

Keywords： mechanically stabilized earth walls     precast concrete panels     backfill soil     finite element modeling     earth reinforcement    

HTML PDF Collect

Numerical analysis of nonlinear dynamic behavior of earth dams

Babak EBRAHIMIAN

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 1,   Pages 24-40 doi: 10.1007/s11709-010-0082-6

Abstract: A numerical study is conducted to investigate the dynamic behavior of earth dams.For the latter, the Long Valley (LV) earth dam subjected to the 1980 Mammoth Lake earthquake as a realsoil behavior, strength of the shell materials and dam reservoir condition on the dynamic response of earth

Keywords： earth dam     numerical     nonlinear response     dynamic analysis     earthquake     dam height    

HTML PDF Collect

Deviation correction strategy for the earth pressure balance shield based on shield–soil interactions

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0676-4

Abstract: decision-making approach for the deviation correction trajectory and posture rectification load for an earth

Keywords： additional position change     deviation correction trajectory     earth pressure balance shield     mechanical    

HTML PDF Collect

Observation of black carbon aerosol in Beijing, 2003

LOU Shujuan, MAO Jietai, WANG Meihua

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 3,   Pages 345-349 doi: 10.1007/s11783-007-0059-4

Abstract: The objective of this study was to determine the black carbon concentration in Beijing in 2003. The aerosol properties were measured using an Aethalometer and a tapered element oscillating microbalance (TEOM) on the roof of the Physics Building of Peking University (39.99º N, 116.31º E) from July to August 2003 and from November 2003 to January 2004. The average black carbon (BC) concentrations in the summer and winter were 8.80 and 11.4 μg/m, respectively. During winter, two different cyclone cut offs were installed at the inlet of an aethalometer. The BC mass concentration in TSP, PM, and PM were obtained. The results indicated that in winter aerosol, 90% of BC exited in PM and 82.6% of BC exited in PM. The BC in PM accounted for 5.11% of the PM mass.

Keywords： carbon concentration     Beijing     tapered element     August     aethalometer    

HTML PDF Collect

Soil spatial variability impact on the behavior of a reinforced earth wall

Adam HAMROUNI, Daniel DIAS, Badreddine SBARTAI

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 2,   Pages 518-531 doi: 10.1007/s11709-020-0611-x

Abstract: This article presents the soil spatial variability effect on the performance of a reinforced earth wall

Keywords： reinforced earth wall     geosynthetic     random field     spatial variability     Monte Carlo simulation    

HTML PDF Collect

Upper bound solution to seismic active earth pressure of submerged backfill subjected to partial drainage

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6,   Pages 1480-1493 doi: 10.1007/s11709-021-0776-y

Abstract: This paper proposes a general analytical method to evaluate the seismic active earth pressure on a retainingthe following steps: i) determination of the total head, ii) upper bound solution of seismic active earththrust, and iii) deduction for the earth pressure distribution.>x,z) relies on the Fourier series expansions, and the expressions of the seismic active earthstudies reveal that insufficient drainage and earthquakes are crucial factors that cause unfavorable earth

Keywords： seismic active earth pressure     partial seepage flow     pore pressure     anisotropy     upper bound theorem    

HTML PDF Collect

Title Author Date Type Operation

General modeling and optimization technique for real-world earth observation satellite scheduling

Journal Article

Development and application of earth observation and nation security

Zhou Zhixing,Wu Zhigang,Ji Yan

Journal Article

Considerations on China' s Earth Observation Technology——Current Activities and Future Directions

Jiang Jingshan

Journal Article

Development Strategy of the New-Generation Effectiveness-Oriented Earth-Observation System

Zhao Wenbo, Li Shuai, Li Bo, Wei Zheng, Hou Yukui, Shen Zhiqiang, Yan Wei, Yu Longjiang, Gong Ran, Chen Hu, Qi Faren

Journal Article

The earth satellites observation analysis of natural environment change of nuclear test field in Lop

Hu Dongsheng,Zhang Huajing,Pang Xilei,Xu Bing,An Zhisheng,Zhang Guowei,Tian Xinhong

Journal Article

Long-term observation of air pollution-weather/climate interactions at the SORPES station: a review and

Aijun Ding,Wei Nie,Xin Huang,Xuguang Chi,Jianning Sun,Veli-Matti Kerminen,Zheng Xu,Weidong Guo,Tuukka Petäjä,Xiuqun Yang,Markku Kulmala,Congbin Fu

Journal Article

New stage and new tasks, development of microwave remote sensing in China

Jiang Jingshan,Wu Yirong,Liu Heguang,Dong Xiaolong

Journal Article

Synchronous observation of rising soluble bubble through quiescent solution

Yifu ZHANG , Shuai TIAN , Weizhong LI , Yongchen SONG ,

Journal Article

Research Progress of Marine Scientific Equipment and Development Recommendations in China

Song Xiancang, Du Junfeng, Wang Shuqing, Li Huajun

Journal Article

Effect of earth reinforcement, soil properties and wall properties on bridge MSE walls

Journal Article

Numerical analysis of nonlinear dynamic behavior of earth dams

Babak EBRAHIMIAN

Journal Article

Deviation correction strategy for the earth pressure balance shield based on shield–soil interactions

Journal Article

Observation of black carbon aerosol in Beijing, 2003

LOU Shujuan, MAO Jietai, WANG Meihua

Journal Article

Soil spatial variability impact on the behavior of a reinforced earth wall

Adam HAMROUNI, Daniel DIAS, Badreddine SBARTAI

Journal Article

Upper bound solution to seismic active earth pressure of submerged backfill subjected to partial drainage

Journal Article