Results 71 to 80 of about 3,153 (215)

Real Time Internet DGPS Service [PDF]

, 2014
The accuracy of the Navigation Satellite Timing and Ranging (NAVSTAR) Global Positioning System (GPS) measurements is insufficient for many outdoor navigation tasks.
Malheiro, Benedita, Restivo, Francisco José de Oliveira, Soares, Manuel Gonçalves   +2 more
core  

Ionospheric Response to the 24–27 February 2023 Solar Flare and Geomagnetic Storms Over the European Region Using a Machine Learning–Based Tomographic Technique

Space Weather, Volume 23, Issue 1, January 2025.
Abstract Two solar flares accompanied by coronal mass ejections (CMEs) occurred on 24–25 February (DOY 055–056), 2023, resulting in a large magnetic storm on DOY 058. We reconstructed the ionospheric electron density (IED) in Europe to analyze the spatial distribution of ionosphere and its temporal evolution during this period. Computerized ionospheric
Ting Li, Dunyong Zheng, Changyong He, Fei Ye, Pengfei Yuan, Yibin Yao, Mengguang Liao, Jian Xie   +7 more
wiley   +1 more source

Negative emissions—Part 3: Innovation and upscaling

Environmental Research Letters, 2018
We assess the literature on innovation and upscaling for negative emissions technologies (NETs) using a systematic and reproducible literature coding procedure.
Gregory F Nemet, Max W Callaghan, Felix Creutzig, Sabine Fuss, Jens Hartmann, Jérôme Hilaire, William F Lamb, Jan C Minx, Sophia Rogers, Pete Smith   +9 more
doaj   +1 more source

Carbon border adjustments or climate clubs: Impacts on African agricultural sectors under different cooperative scenarios

The World Economy, Volume 48, Issue 1, Page 119-152, January 2025.
Abstract Despite the rapid acceleration of climate change, international climate negotiations have yet to implement effective mitigation action. This failure can be attributed to the phenomenon of free‐riding behaviours and the adverse effects of unilateral abatement policies, such as carbon leakage.
Andrea M. Bassi, Francesco Calciolari, Valeria Costantini, Mariagrazia D'Angeli, Elena Paglialunga   +4 more
wiley   +1 more source

How Leave won Twitter: an analysis of 7.5m Brexit-related tweets [PDF]

, 2016
How do tweets map onto the Brexit vote? Neatly, it turns out. Stefan Bauchowitz (left) and Max Hänska collected more than 7.5m Brexit-related tweets in the run-up to the referendum.
Bauchowicz, Stefan, Hänska, Max
core  

Relativity accommodates superluminal mean velocities

, 2012
Contrary to a widespread belief, measures of velocity can yield a value larger than $c$, the instantaneous light speed in vacuum, without contradicting Einstein's relativity.
B. Allés, C. Møller, F. R. Klinkhamer   +2 more
core   +1 more source

Ionospheric TEC Forecast Using Bi‐LSTM With the Adam Optimizer During X‐Class Solar Flares Occurred in the Year 2024 and Validation With IRI‐2020

Advances in Astronomy, Volume 2025, Issue 1, 2025.
Satellite communication and navigation systems have become more essential to everyday life, but at the same time, understanding the effect of solar activity on these systems is vital. Total electron content (TEC) is a key factor affecting satellite signals.
Sarat C. Dass, T. Muthu, R. Mukesh, B. Raghavi, S. Muthamil, S. Nivetha, S. Kiruthiga, Yu Liu   +7 more
wiley   +1 more source

Hrvatska u EUREF'94 i projekt CRODYN

Geodetski list, 1996
The paper presents first the basic information about the purpose, origins and extension of the unique European spatial coordinate system EUREF. Furthermore, there is a report about GPS Campaign EUREF 1994 – Croatia and Slovenia and about so far obtained remarkable results within the scope of ITRF89 and the related ETRS89.
Čolić, Krešimir, Bašić, Tomislav, Seeger, Hermann, Gojčeta, Branimir, Altiner, Yüksel, Rašić, Ljerka, Medić, Zlatko, Pribičević, Boško, Medak, Damir, Marjanović, Marijan, Prelogović, Eduard   +10 more
openaire   +3 more sources

Blockchain Technology and Electricity Wholesale Markets: Expert Insights on Potentials and Challenges for OTC Trading in Europe

Energies, 2019
In this manuscript, we investigate the adoption of blockchain for over-the-counter (OTC) electricity wholesale trading under the EU regulatory framework.
Carol Inoue Dick, Aaron Praktiknjo
doaj   +1 more source

Performance and Form: new pedagogical approaches to designing the building envelope as an adaptive interface [PDF]

, 2012
Architecture pedagogy plays a significant role in building a sustainable world. Sustainable design requires a thorough understanding of building energy performance, while the urging issue of a changing climate demands for higher energy efficiency and ...
Demel, Robert, Passe, Ulrike, Passe, Ulrike   +2 more
core   +2 more sources