Results 41 to 50 of about 50,439 (173)

The success of PPPs in Poland [PDF]

open access: yes22nd Annual European Real Estate Society Conference, 2015
The construction and provision of infrastructure services is often based on a partnership between public and private sector under a framework of Public Private Partnerships (PPPs). This type of partnership has been employed in Poland since 2009._Though public-private partnerships in Poland are a relatively young and promising investment model, they are
Joanna Wegrzyn, Michal Gluszak
openaire   +3 more sources

The positioning performance of low-cost GNSS receivers in the Precise Point Positioning method [PDF]

open access: yesAdvances in Geodesy and Geoinformation, 2022
Satellite-based positioning, which started being developed in the mid-1960s for military purposes, is now used in almost every area. For the studies single and/or double frequency receivers are used.
Mustafa Fahri Karabulut   +9 more
doaj   +1 more source

The impact of digital technologies on the interaction of government and business in the process of technology transfer

open access: yesAspekti Publìčnogo Upravlìnnâ, 2020
The report states that the presence of digital technologies in the modern world is a normal, everyday phenomenon. Modern humanity cannot imagine its life without digital technologies.
Yevhenii Yefimov
doaj   +1 more source

Accuracy of Precise Point Positioning (PPP) with the use of different International GNSS Service (IGS) products and stochastic modelling [PDF]

open access: yesGeodesy and Cartography, 2018
This paper provides analyses of the accuracy and convergence time of the PPP method using GPS systems and different IGS products. The official IGS products: Final, Rapid and Ultra Rapid as well as MGEX products calculated by the CODE analysis centres ...
Damian Kiliszek   +2 more
doaj   +1 more source

TRIM21 and PHLDA3 negatively regulate the crosstalk between the PI3K/AKT pathway and PPP metabolism

open access: yesNature Communications, 2020
PI3K/AKT signaling is known to regulate cancer metabolism, but whether metabolic feedback regulates the PI3K/AKT pathway is unclear. Here, we demonstrate the important reciprocal crosstalk between the PI3K/AKT signal and pentose phosphate pathway (PPP ...
Jie Cheng   +17 more
semanticscholar   +1 more source

Double Time Window Targeting Technique: Real time DMRG dynamics in the PPP model [PDF]

open access: yesPhys. Rev B 82, 035115 (2010), 2010
We present a generalized adaptive time-dependent density matrix renormalization group (DMRG) scheme, called the {\it double time window targeting} (DTWT) technique, which gives accurate results with nominal computational resources, within reasonable computational time.
arxiv   +1 more source

Mussa Redux and Conditional PPP [PDF]

open access: yesFederal Reserve Bank of San Francisco, Working Paper Series, 2012
Abstract The extreme persistence of real exchange rates found commonly in post-Bretton Woods data does not hold in the preceding fixed exchange rate period, when the half-life was roughly half as large in our sample. This finding supports sticky price models as an explanation for real exchange rate behavior, extending the classic argument of Mussa ...
Paul R. Bergin, Reuven Glick, Jyh-Lin Wu
openaire   +4 more sources

Investigation of Diesel Exhaust Gas Toxicity on Transient Modes

open access: yesVestnik Volgogradskogo Gosudarstvennogo Universiteta. Seriâ 10. Innovacionnaâ Deâtelʹnostʹ, 2014
Currently, the generation of heat engines and their control systems are based on ecological indices such as the toxicity of the fulfilled gases. When designing motors, software packages are widely used.
Ivashchenko Nikolay Antonovich   +3 more
doaj   +1 more source

Research on GNSS positioning and applications in Poland in 2015–2018 [PDF]

open access: yesGeodesy and Cartography, 2019
This review paper presents research results on geodetic positioning and applications carried out in Poland, and related to the activities of the International Association of Geodesy (IAG) Commission 4 “Positioning and Applications” and its working groups.
Paweł Wielgosz   +3 more
doaj   +1 more source

The implications of ionospheric disturbances for precise GNSS positioning in Greenland

open access: yesJournal of Space Weather and Space Climate, 2022
Ionospheric irregularities impair Global Navigation Satellite System (GNSS) signals and, in turn, affect the performance of GNSS positioning. Such effects are especially evident at low and high latitudes, which are currently gaining the attention of ...
Paziewski Jacek   +11 more
doaj   +1 more source

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