Results 1 to 10 of about 153 (130)

New Cable Delay Measurement System for VGOS Stations [PDF]

Sensors, 2022
This paper presents the new cable delay measurement system (CDMS) designed at Yebes Observatory (IGN, Spain), which is required for the VLBI Global Observing System (VGOS) stations. This system measures the phase difference between the 5 MHz reference signal from the hydrogen maser and the 5 MHz signal that reaches the broadband receiver through a ...
Pablo García-Carreño, Maria Patino-Esteban, FRANCISCO J Beltrán-Martínez   +2 more
exaly   +6 more sources

A Comparative Study of VTEC Estimates Derived From S/X VLBI and VGOS Observations

Space Weather
Abstract The ionosphere, which strongly varies in time and space, is one of the largest error sources for microwave measurements, if not accounted for accurately. Especially for single‐frequency observations, precise ionospheric models are needed to correct for the ionospheric delays. This study explores the utility of Very Long Baseline Interferometry
Benedikt Soja
exaly   +3 more sources

Inter-Comparison of UT1-UTC from 24-Hour, Intensives, and VGOS Sessions during CONT17 [PDF]

Sensors, 2022
This work focuses on the assessment of UT1-UTC estimates from various types of sessions during the CONT17 campaign. We chose the CONT17 campaign as it provides 15 days of continuous, high-quality VLBI data from two legacy networks (S/X band), i.e ...
Shrishail Raut, Robert Heinkelmann, Sadegh Modiri   +2 more
exaly   +4 more sources

Global trend of food-induced anaphylaxis: Up to date. [PDF]

Pediatr Allergy Immunol
Abstract This review examines the evolving global landscape of food‐induced anaphylaxis (FIA), revealing critical epidemiological shifts that challenge traditional allergen management paradigms. As the leading cause of anaphylaxis worldwide, FIA demonstrates striking geographic, age‐specific, and temporal patterns that reflect broader changes in ...
Leung AS, Estrada-Reyes E, Goto K, Huang CH, Li JM, Nagarajan SA, Ranasinghe T, Sato S, Srisuwatchari W, Zepeda-Ortega B, Tham EH.   +10 more
europepmc   +2 more sources

Learning hydrocracking reaction dynamics via neural ODEs: A data‐driven, gradient‐interpretable lumped modelling framework

The Canadian Journal of Chemical Engineering, Volume 104, Issue 3, Page 1372-1386, March 2026.
This work demonstrates the application of neural ordinary differential equations (neural ODEs) for learning hydrocracking reaction kinetics directly from data, achieving robust predictions under noise and sparsity while preserving mechanistic interpretability through gradient‐based analysis of temperature‐ and concentration‐dependent reaction rates ...
Souvik Ta, Lakshminarayanan Samavedham, Ajay K. Ray   +2 more
wiley   +1 more source

Sustainable Energy Through Pyrolysis: Bridging Innovation With Implementation in Biomass Conversion

International Journal of Energy Research, Volume 2026, Issue 1, 2026.
Biomass pyrolysis is a promising thermochemical process for converting organic feedstocks into bio‐oil, biochar, and syngas, with potential to reduce fossil fuel dependence, mitigate greenhouse gas (GHG) emissions, and address bio‐waste challenges.
Chong Shin-Yee, Firdaus Muhammad-Sukki, Muhammad Adlim, Taishi Yazawa, Nur Azalina Suzianti Feisal, Mohd Khairul Amri Kamarudin, Wan Abd Al Qadr Imad Wan-Mohtar, Zul Ilham, Prakash Bhuyar   +8 more
wiley   +1 more source

Optimization Design Method and Application of Nitrogen Horizontal Well Drilling Technology in Coalbed Methane Reservoirs

Energy Science &Engineering, Volume 13, Issue 11, Page 5702-5712, November 2025.
Through the independent research and development of nitrogen drilling software, the calculation model of gas injection parameters and friction torque calculation model suitable for coalbed methane nitrogen drilling are established, and the calculation methods of construction parameters such as gas injection volume and injection pressure, friction ...
Hu Jiachen, Tan Zhanglong, Yang Fan, Hao Zhaobing, Yang Qi, Feng Lei, Wang Peng   +6 more
wiley   +1 more source

The Coking of a Solid Catalyst Rationalized with Combined Raman and Fluorescence Lifetime Microscopy

Angewandte Chemie, Volume 136, Issue 40, October 1, 2024.
Combined Raman, fluorescence and fluorescence lifetime microscopy allows to study the coke formation process of an industrial equilibrium catalyst for fluid catalytic cracking. The changing fluorescence dynamics, together with extensive coke graphitization observed during in situ coking experiments with hexane as feedstock show that combining these ...
Robin Vogel, Caroline Versluis, Rowie Frijsen, P. Tim Prins, Eelco T. C. Vogt, Freddy T. Rabouw, Bert M. Weckhuysen   +6 more
wiley   +2 more sources

Genomic Landscape of Divergence in Ballan Wrasse (Labrus bergylta)

Molecular Ecology, Volume 34, Issue 21, November 2025.
ABSTRACT The architecture underpinning genomic divergence is still a largely uncharted territory and likely case‐dependent. Here, we investigated genome‐wide variation in Ballan wrasse, a northeastern Atlantic fish species that displays two sympatric colour morphs, spotty and plain, that have been suggested to represent subspecies.
Eeva Jansson, Fernando Ayllon, Carl‐Johan Rubin, Laura Casas, Fran Saborido‐Rey, Tomasz Furmanek, Marine S. O. Brieuc, David Villegas‐Rios, María Quintela, Rolf B. Edvardsen, Roger Lille‐Langøy, Kevin A. Glover   +11 more
wiley   +1 more source

Single‐Line Drawing Vectorization

Computer Graphics Forum, Volume 44, Issue 7, October 2025.
Abstract Vectorizing line drawings is a repetitive, yet necessary task that professional creatives must perform to obtain an easily editable and scalable digital representation of a raster sketch. State‐of‐the‐art automatic methods in this domain can create series of curves that closely fit the appearance of the drawing. However, they often neglect the
Tanguy Magne, Olga Sorkine‐Hornung
wiley   +1 more source