Results 111 to 120 of about 28,383 (303)

The role of integrity for maritime traffic situation assessment [PDF]

, 2011
Starting from the E-Navigation concept of IMO this paper will give an overview about integrity in maritime traffic awareness. Derived from a DLR study a concept is presented which introduces the provision of integrity maritime traffic awareness.
Engler, Evelin, Banyś, Paweł, Noack, Thoralf, Gewies, Stefan   +3 more
core  

A Kinetic–Energetic Bottleneck of Charge‐Transfer Injection Governs Energy Loss in Organic Solar Cells

Advanced Energy Materials, EarlyView.
Kinetic–energetic projection of time‐resolved photoluminescence reveals that charge‐transfer injection acts as a universal bottleneck in organic solar cells. A physics‐constrained Bayesian framework identifies an emergent effective CT injection rate governing the trade‐off between charge generation and nonradiative energy loss.
Rong Wang, Tobias Osterrieder, Atul Shukla, Christos L. Chochos, Vasilis G. Gregoriou, Yakun He, Hua Tang, Julian Matthias Haffner‐Schirmer, Karen Forberich, Ning Li, Thomas Heumueller, Frédéric Laquai, Jens Hauch, Safa Shoaee, Dieter Neher, Larry Lüer, Christoph J. Brabec   +16 more
wiley   +1 more source

Integrity concepts for future maritime Ground Based Augmentation Systems [PDF]

, 2009
Global Navigation Satellite Systems (GNSS) require augmentation to achieve integrity and accuracy performance for high-precise safety of life applications. The current standard maritime GNSS augmentation system is a differential GPS (DGPS) beacon system,
Minkwitz, David, Engler, Evelin, Noack, Thoralf, Gewies, Stefan, Klisch, Anja   +4 more
core  

Sustainable Productivity Growth in Agriculture: The Role of Shifts in R&D Investments and Technology

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT The objective of the paper is to evaluate the long‐term prospects of sustainable productivity growth linked to plausible assumptions on public agricultural R&D investments as the key productivity driver. Second, it investigates the role of changing R&D focus from yield maximization to input saving technologies (fertilizers and pesticides). The
Zuzana Smeets Křístková, Michiel van Dijk, Robert M'Barek, Hans van Meijl, Tomas Ratinger   +4 more
wiley   +1 more source

GNSS Satellite Orbit Validation Using Satellite Laser Ranging [PDF]

, 2013
With a total of four new regional and global navigation sa tellite systems that have launched first satellites or even started an operational serv ice, the GNSS landscape has experienced major changes in recent years.
Steigenberger, Peter, Montenbruck, Oliver, Kirchner, Georg   +2 more
core  

Simulink Based Modeling of a Multi Global Navigation Satellite System [PDF]

, 2016
The objective of this thesis is to design a model for a multi global navigation satellite system using Simulink. It explains a design procedure which includes the models for transmitter and receiver for two different navigation systems.
Mukka, Nagaraju
core   +1 more source

Drivers of Precision Agriculture Adoption in Italian Viticulture

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT This study examines the main drivers influencing the adoption of two types of precision farming technologies in the viticultural sector: Decision Support Systems (DSSs) and Variable Rate Technologies (VRTs). We apply a partial proportional odds model and find that socio‐demographic characteristics are not significant determinants of adoption ...
Olimpia Fontana, Linda Arata, Margherita Muzzillo, Paolo Sckokai   +3 more
wiley   +1 more source

Precise time and frequency transfer combined BeiDou’s RDSS and RNSS signals

EURASIP Journal on Wireless Communications and Networking, 2019
Unlike other satellite navigation systems such as GPS (Global Positioning System), the BeiDou satellite navigation system broadcasts RDSS (Radio Determination Satellite Service) and RNSS (Radio Navigation Satellite Service) signals simultaneously on its ...
Wenxue Liu, Hong Yuan, Jian Ge, Ying Xu
doaj   +1 more source

Data‐Guided Photocatalysis: Supervised Machine Learning in Water Splitting and CO2 Conversion

Advanced Intelligent Discovery, EarlyView.
This review highlights recent advances in supervised machine learning (ML) for photocatalysis, emphasizing methods to optimize photocatalyst properties and design materials for solar‐driven water splitting and CO2 reduction. Key applications, challenges, and future directions are discussed, offering a practical framework for integrating ML into the ...
Paul Rossener Regonia, Christian Mark Pelicano   +1 more
wiley   +1 more source

Simulator of GNSS signals for testing of space objects receivers in the earth conditions

Journal of Measurement Science and Instrumentation, 2018
A technique for testing space object receivers using global navigation satellite system（GNSS）signal simulator of the navigation field is proposed.Its structure consists of two blocks which allow synthesizing the scenario of reciprocal displacement of the
Yu Khomenko, V F Kravchenko, A G Laush, V I Lutsenko, I V Lutsenko, D O Popov   +5 more
doaj