Results 31 to 40 of about 849 (158)

VGOS Dual Linear Polarization Data Processing Techniques Applied to Differential Observation of Satellites

Remote Sensing
The Very Long Baseline Interferometry Global Observing System (VGOS), a global network of stations equipped with small-diameter, fast-slewing antennas and broadband receivers, is primarily utilized for geodesy and astrometry.
Jiangying Gan, Fengchun Shu, Xuan He, Yidan Huang, Fengxian Tong, Yan Sun   +5 more
doaj   +1 more source

A Fast Radio Burst Search Method for VLBI Observation

, 2018
We introduce the cross spectrum based FRB (Fast Radio Burst) search method for VLBI observation. This method optimizes the fringe fitting scheme in geodetic VLBI data post processing, which fully utilizes the cross spectrum fringe phase information and ...
Liu, Lei, Tong, Fengxian, Tong, Li, Zhang, Juan, Zheng, Weimin   +4 more
core   +1 more source

Governance in Areas of Limited Statehood: The NGOization of Palestine [PDF]

, 2019
In this article we examine the shifting roles played by non-state actors in governing areas of limited statehood. In particular we focus on the emergence of voluntary grassroots organizations in Palestine and describe how regimes of international ...
Allen L., Beisheim M., Börzel T. A., Choudry A., Cooke B., De Voir J., Escobar A., Falk R., Ferguson J., Haddad T., Lama Arda, Payes S., Risse T., Roy S., Said E., Said E., Subhabrata Bobby Banerjee, Taghdisi-Rad S., Turner M.   +18 more
core   +2 more sources

Experience from geodetic very long baseline interferometry observations at Onsala using a digital backend [PDF]

, 2015
The Onsala Space Observatory has installed a modern digital backend for geodetic and astronomical Very Long Baseline Interferometry (VLBI). This system consists of a Digital Base-Band Converter (DBBC) and a Mark 5B+ recorder.
Haas, Rüdiger, Kareinen, Niko
core   +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

How to register a VGOS radio telescope at ITU and why it is important [PDF]

, 2016
VGOS radio telescopes enable observations in the range of 2-14 GHz and are much more receptive for unwanted radio frequency interference. Some space-borne transmitters may cause detrimental radiation to VGOS receivers.
Corey, Brian, Hase,Hayo, TORNATORE, VINCENZA   +2 more
core  

The source structure of 0642+449 detected from the CONT14 observations

, 2016
The CONT14 campaign with state-of-the-art VLBI data has observed the source 0642+449 with about one thousand observables each day during a continuous observing period of fifteen days, providing tens of thousands of closure delays---the sum of the delays ...
Anderson, James M., Heinkelmann, Robert, Mora-Diaz, Julian, Schuh, Harald, Wang, Guang L., Xu, Ming H.   +5 more
core   +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