Results 51 to 60 of about 758 (152)

Obtaining Local‐Tie Vectors From Short‐Baseline Interferometry Between Legacy S/X and VGOS Telescopes at Ny‐Ålesund

Radio Science, Volume 61, Issue 9, September 2026.
Abstract With the ongoing transition for geodetic Very Long Baseline Interferometry (VLBI) from the use of legacy S/X telescopes to the VLBI Global Observing System (VGOS), it is necessary to connect the new VGOS network to the existing legacy S/X telescopes.
Rebekka Handirk, Eskil Varenius, Tobias Nilsson, Karine Le Bail, Rubén Bolaño González, Susana Garcia‐Espada, Axel Meldahl, Thomas Gasmoe, Silje Agnes Grøslie Wennesland, Oddvar Bråvold Tangen, Halfdan Pascal Kierulf   +10 more
wiley   +1 more source

Selective Conversion of Polyolefin Waste to Branched Alkanes via Methane‐Free Tandem Hydrocracking–Isomerization

Advanced Science, Volume 13, Issue 21, 13 April 2026.
Scheme illustrating the selective conversion of plastic waste to isomerized C4‐C12 products using RuSZ1 under different reaction conditions. ABSTRACT In recent years, catalytic hydrocracking has emerged as a promising waste‐to‐feedstock solution for processing plastic waste.
Xinbang Wu, Sitan Wang, Matilde Onofri, Kande Liu, Kun‐Han Lin, Roland C. Turnell‐Ritson, Li Shi, Xuan Meng, Paul J. Dyson   +8 more
wiley   +1 more source

Source structure effects in VLBI Global Observing System (VGOS) observations

, 2022
VLBI Global Observing System (VGOS) is now regularly observing to produce the best geodetic VLBI data ever, with a thermal noise level of about 3 ps. However, the systematic errors due to angular structure of the radio sources are becoming prominent in ...
Harald Schuh, Ming Hui Xu, Tuomas Savolainen, Robert Heinkelmann   +3 more
core   +1 more source

Kinetic Modeling of Vacuum Gas Oil Hydrotreatment using a Molecular Reconstruction Approach Modélisation cinétique de l’hydrotraitement de distillats sous vide utilisant une approche de reconstruction moléculaire

Oil & Gas Science and Technology, 2010
Vacuum Gas Oils (VGO) are heavy petroleum cuts (boiling points ranging from 350 to 550 ˚C) that can be transformed into valuable fuels (gasolines, diesels) by fluid catalytic cracking or hydrocracking.
Charon-Revellin N., Dulot H., López-García C., Jose J.   +3 more
doaj   +1 more source

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

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

VGOS CRF: Celestial Reference Frame from VGOS until Dec 2024

We present a celestial reference frame (CRF) from Very Long Baseline Interferometry (VLBI) Global Observing System (VGOS) including data until December 2024. The VGOS CRF is built with 1.8 million group delays observed in 193 multi-baseline 24-hour sessions (178 VGOS-OPS, 15 VGOS-R&D) with a fixed frequency distribution.
Krasna, Hana, Jacobs, Christopher, Schartner, Matthias, Charlot, Patrick   +3 more
openaire   +3 more sources