Results 151 to 160 of about 50,439 (173)

Comparison of time transfer of IF-PPP, GIM-PPP, and RIM-PPP

GPS Solutions, 2023
Qile Zhao, Jingyu Guo, Hongming Zuo, Xiaopeng Gong, Wenfei Guo, Shengfeng Gu   +5 more
openaire   +1 more source

The PPP Transaction Cycle

2016
This chapter examines the detailed transaction cycle and the procurement process for PPPs in Nigeria. This will guide practitioners and potential investors through the different procurement procedures and steps for delivering a PPP project in Nigeria.
openaire   +2 more sources

Multi-GNSS phase delay estimation and PPP ambiguity resolution: GPS, BDS, GLONASS, Galileo

Journal of Geodesy, 2018
Xingxing Li, Xin Li, Yongqiang Yuan, Keke Zhang, Xiaohong Zhang, J. Wickert   +5 more
semanticscholar   +1 more source

PPP und Wettbewerb

2014
Wenn es kaum Wettbewerb im Markt gibt, kommt dem Wettbewerb um den Markt im Rahmen der Projektausschreibungen hohe Bedeutung zu. Grose Lose und aufwendige Verfahren begunstigen jedoch wenige grose Anbieter. Dies verstarkt den Verdacht verdeckter Subventionierung, zumal im Falle einer mehr als kostendeckenden Gebuhrenerhebung durch den privaten Partner ...
openaire   +2 more sources

PPPs and megaprojects

2021
openaire   +2 more sources

A modified phase clock/bias model to improve PPP ambiguity resolution at Wuhan University

Journal of Geodesy, 2019
J. Geng, Xingyu Chen, Yuanxin Pan, Qile Zhao   +3 more
semanticscholar   +1 more source

PPP-RTK based on undifferenced and uncombined observations: theoretical and practical aspects

Journal of Geodesy, 2018
Baocheng Zhang, Yongchang Chen, Yunbin Yuan   +2 more
semanticscholar   +1 more source

Innovation in PPP

2009
David Eaton, Rıfat Akbiyikli
openaire   +2 more sources

A review of emerging trends in global PPP research: analysis and visualization

Scientometrics, 2016
Jinbo Song, Honglian Zhang, Wanli Dong
semanticscholar   +1 more source

PPP implementation: legal framework and PPP contract

2021
openaire   +1 more source