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Innovation and development of BeiDou Navigation Satellite System (BDS) project management mode

Changfeng YANG

Frontiers of Engineering Management 2021, Volume 8, Issue 2, Pages 312-320 doi: 10.1007/s42524-021-0155-3

Abstract: Zachary A. COLLIER, James H. LAMBERT. [J]. Front. Eng, 2020, 7(2): 172-181.Shanlin YANG, Jianmin WANG, Leyuan SHI, Yuejin TAN, Fei QIAO. [J]. Front. Eng, 2018, 5(4): 420-450.Yongkai ZHOU, Hongfeng CHAI. [J]. Front. Eng, 2017, 4(2): 127-137.Eric SCHEEPBOUWER, Douglas D. GRANSBERG, Carla Lopez del PUERTO. [J]. Front. Eng, 2017, 4(1): 49-57.Jonathan Jingsheng SHI, Saixing ZENG, Xiaohua MENG. [J]. Front. Eng, 2017, 4(1): 41-48.David A. Wyrick,Warren Myers. [J]. Front. Eng, 2016, 3(3): 203-205.Elizabeth A. Cudney,William L. Gillis. [J]. Front. Eng, 2016, 3(3): 224-230.Ling-ling Zhang,Ming-hui Zhao,Qiao Wang. [J]. Front. Eng, 2016, 3(2): 136-143.Chuan-jun Zheng,Hu Cheng. [J]. Front. Eng, 2015, 2(3): 304-310.Yong Shi. [J]. Front. Eng, 2015, 2(3): 293-303.Qiao Xiang. [J]. Front. Eng, 2015, 2(3): 249-260.Wen Ling. [J]. Front. Eng, 2015, 2(2): 173-177.Hong-feng Chai. [J]. Front. Eng, 2015, 2(2): 165-172.Hiral Shah,Walter Nowocin. [J]. Front. Eng, 2015, 2(1): 60-63.William L. Gillis,Elizabeth A. Cudney. [J]. Front. Eng, 2015, 2(1): 39-51.

Keywords： BDS engineering management systems engineering

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Glogbal Services of BeiDou Navigation Satellite System: Risk Analysis and Countermeasures

Yang Jun

Strategic Study of CAE 2023, Volume 25, Issue 2, Pages 13-21 doi: 10.15302/J-SSCAE-2023.02.002

Abstract:

After the BeiDou navigation satellite system (BDS) global services weredevelopment trend of BDS global services from the perspectives of international development trends of satellite

Keywords： BeiDou navigation satellite system global services risk analysis risk response

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Service Performance Enhancement Technologies for BeiDou Navigation Satellite System along the Belt and

Zhou Jianhua, Chen Junping, Zhang Jingyu

Strategic Study of CAE 2019, Volume 21, Issue 4, Pages 69-75 doi: 10.15302/J-SSCAE-2019.04.005

Abstract:

To solve problems in globalization of the BeiDou Navigation Satelliteperformance and application status of the BDS, based on the overall application and development trend of satelliteabove analyses, preliminary technical approaches and schemes are designed to promote and apply the satellite-based

Keywords： satellite navigation，BeiDou Navigation Satellite System (BDS)，the Belt and Road，application and promotion

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Overall Strategy for the International Application of BeiDou Navigation Satellite System

Fang Yufei, Yang Jingfan, Zhang Wenqing, Yang Junlin

Strategic Study of CAE 2023, Volume 25, Issue 2, Pages 22-30 doi: 10.15302/J-SSCAE-2023.02.003

Abstract:

To promote the international application of the BeiDou navigation satellite system (BDS) can facilitate

Keywords： global navigation satellite system BeiDou navigation satellite system internationalization application

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International Application of BeiDou Navigation Satellite System

Yang Changfeng, Yang Jun, Yang Junlin, Wang Jun, Li Zuohu

Strategic Study of CAE 2023, Volume 25, Issue 2, Pages 1-12 doi: 10.15302/J-SSCAE-2023.02.001

Abstract:

The international application of the BeiDou navigation satellite systeminternationalization demand for BDS application, examines the development status and trend of global navigation satellite

Keywords： satellite navigation BeiDou navigation satellite system internationalization industrial application

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Wideband and high-gain BeiDou antenna with a sequential feed network for satellite tracking Research Article

Zhuolin DENG, Zhongyu TIAN, Chenhe DUAN, Pei XIAO, Zhu LIU, Gaosheng LI,Gaosheng7070@vip.163.com

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 10, Pages 1471-1481 doi: 10.1631/FITEE.2200244

Abstract: BeiDou-3 navigation satellite system was officially opened in 2020.demonstrates a return loss of more than 13 dB and an axial ratio3 dB over the entire global navigation satelliteThe proposed antenna connected to a GNSS receiver has tracked 12 BeiDou satellites with ratios of GNSS

Keywords： BeiDou antenna Wideband circularly polarized radiation Four-port sequential feed network Global navigationsatellite system (GNSS) receiver Satellite tracking

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Current Status and Transformation of Satellite Navigation Industry Policies in China

Yang Junlin, Fang Yufei, Wang Jun, Mao Guohui

Strategic Study of CAE 2021, Volume 23, Issue 2, Pages 138-145 doi: 10.15302/J-SSCAE-2021.02.019

Abstract:

Satellite navigation is an emerging industry of strategic importanceTargeted and powerful industrial policies can help optimize and upgrade the satellite navigation industryand promote the scaled, industrialized, and international development of the BeiDou Navigation SatelliteThis study focuses on the transformation of China’s satellite navigation industry policies andexpounds on the role of industrial policies in the development of the satellite navigation industry.

Keywords： satellite navigation industry industrial policy transformation rules and standards BeiDou NavigationSatellite System (BDS)

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Understand and construct Beidou

Xu Qifeng

Strategic Study of CAE 2014, Volume 16, Issue 8, Pages 26-32

Abstract:

This paper indicates that the development of satellite navigation systemThe adverse conditions of constructing satellite navigation system in our country are analyzed and satellite

Keywords： system regional augmentationsatellite navigation system satellite constellation design regional navigation

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Modernized Governance for the Construction of China’s Satellite Navigation System

Yang Junlin, Yang Changfeng, Mao Guohui

Strategic Study of CAE 2023, Volume 25, Issue 2, Pages 31-40 doi: 10.15302/J-SSCAE-2023.02.004

Abstract:

The construction of satellite navigation is characterized by a long riskcontext of promoting the modernization of China’s national governance system and capacities, the satellitesummarizes the governance experience in the practice of the three-step development strategy of China’s satelliteThis can promote the modernized governance of satellite navigation construction and provide strong supportfor the high-quality development of China’s satellite navigation system.

Keywords： BeiDou navigation satellite system management effectiveness scientific and technological innovation

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Beidou Navigation Satellite System

14 Dec 2022

Keywords： 2022全球十大工程成就

Beidou Navigation Satellite System(English)

20 Dec 2022

Keywords： 2022全球十大工程成就

Low Earth Orbiter (LEO) Navigation Augmentation: Opportunities and Challenges

Wang Lei, Li Deren, Chen Ruizhi, Fu Wenju, Shen Xin, Jiang Hao

Strategic Study of CAE 2020, Volume 22, Issue 2, Pages 144-152 doi: 10.15302/J-SSCAE-2020.02.018

Abstract:

As China’s Beidou satellite navigation system (Beidou system) achievesaugmentation (LEO-NA) technique becomes a hot research topic, since it can easily cooperate with the Beidouprecision for global autonomous navigation and to extend the application market of the global navigation satellitetechnique, and focused on the in-orbit validation of key techniques for the “Luojia-1A” satelliteenhancing the top-level design of the LEO-NA system while focusing on the synergy of the LEO-NA and Beidou

Keywords： satellite navigation augmentation low earth orbiter constellation Beidou system collaborative development satellite–ground integration

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Development Strategy of Internet Plus Intelligent Transportation

Gao Kefu, Sun Hongbin, Wang Nan, Guo Chi

Strategic Study of CAE 2020, Volume 22, Issue 4, Pages 101-105 doi: 10.15302/J-SSCAE-2020.04.004

Abstract: concept (iTaaS) and new critical infrastructures in China with international competitiveness such as the BeiDousatellite navigation system and 5G technology.

Keywords： Internet Plus intelligent transportation new infrastructure Internet of Vehicles BeiDou satellite

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Biosorption of Cd

Fengyu ZAN, Shouliang HUO, Beidou XI, Xiulan ZHAO

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 1, Pages 51-58 doi: 10.1007/s11783-011-0206-9

Abstract: The biosorption of Cd and Cu onto the immobilized ( ) was investigated in this study. Adsorption kinetics, isotherms and the effect of pH were studied. The results indicated that the biosorption of Cd and Cu on the immobilized was fast at initial stage and then became slow. The maximum biosorption of heavy metal ions on immobilized were observed at pH 4 for Cd and Cu . by the pseudo-second-order model described the sorption kinetic data well according to the high correlation coefficient ( ) obtained. The biosorption isotherm was fitted well by the Langmuir model, indicating possible mono-layer biosorption of Cd and Cu on the immobilized . Moreover, the immobilized after the sorption of Cd and Cu could be regenerated and reused.

Keywords： Saccharomyces cerevisiae (S. cerevisiae) biosorption heavy metals immobilization desorption

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Turnover and loss of nitrogenous compounds during composting of food wastes

YANG Yanmei, ZHANG Xiangfeng, YANG Zhifeng, XI Beidou, LIU Hongliang

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 2, Pages 251-256 doi: 10.1007/s11783-008-0042-8

Abstract: Few people have so far explored into the research of the dynamics of various nitrogenous compounds (including water-soluble nitrogen) in composting of food wastes. This study aimed to investigate the solid-phase nitrogen, water-soluble nitrogen, nitrogen loss together with ammonia volatilization in the process of food wastes composting. A laboratory scale static aerobic reactor in the experiment was employed in the composting process of a synthetic food waste, in which sawdust was used as the litter amendment. In the experiment, oxygen was supplied by continuous forced ventilation for 15 days. The results have shown that the concentrations of total nitrogen and organic nitrogen decrease significantly in the composting process, whereas NH-N concentration increases together with little fluctuation in NO-N. After composting, the total content of the water-soluble nitrogen compounds in the compost greatly increased, the total nitrogen loss amounted to 50% of the initial nitrogen, mainly attributed to ammonia volatilization. 56.7% of the total ammonia volatilization occurred in the middle and late composting of the thermophilic stage. This suggested that the control at the middle and late composting of thermophilic stage is the key to nitrogen loss in the food waste compost.

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Title Author Date Type Operation

Innovation and development of BeiDou Navigation Satellite System (BDS) project management mode

Changfeng YANG

Journal Article

Glogbal Services of BeiDou Navigation Satellite System: Risk Analysis and Countermeasures

Yang Jun

Journal Article

Service Performance Enhancement Technologies for BeiDou Navigation Satellite System along the Belt and

Zhou Jianhua, Chen Junping, Zhang Jingyu

Journal Article

Overall Strategy for the International Application of BeiDou Navigation Satellite System