Results 41 to 50 of about 154 (132)

Voronoi Cell Interface‐Based Parameter Sensitivity Analysis for Labeled Samples

Computer Graphics Forum, Volume 44, Issue 3, June 2025.
Abstract Varying the input parameters of simulations or experiments often leads to different classes of results. Parameter sensitivity analysis in this context includes estimating the sensitivity to the individual parameters, that is, to understand which parameters contribute most to changes in output classifications and for which parameter ranges ...
R. Bauer, M. Evers, Q. Q. Ngo, G. Reina, S. Frey, M. Sedlmair   +5 more
wiley   +1 more source

Viewpoint Optimization for 3D Graph Drawings

Computer Graphics Forum, Volume 44, Issue 3, June 2025.
Abstract Graph drawings using a node‐link metaphor and straight edges are widely used to represent and understand relational data. While such drawings are typically created in 2D, 3D representations have also gained popularity. When exploring 3D drawings, finding viewpoints that help understanding the graph's structure is crucial.
S. van Wageningen, T. Mchedlidze, A. Telea   +2 more
wiley   +1 more source

Investigating a continental Australian VGOS VLBI intensive for UT1-UTC determination

Earth, Planets and Space
In this simulation study, we investigate the potential performance of VLBI Intensives using the AuScope 12-metre VLBI network. This continental Australian network consisting of three stations, has recently been fully upgraded with VGOS receivers and has ...
Tiege McCarthy, Lucia McCallum, Matthias Schartner   +2 more
doaj   +1 more source

Sca2Gri: Scalable Gridified Scatterplots

Computer Graphics Forum, Volume 44, Issue 3, June 2025.
Abstract Scatterplots are widely used in exploratory data analysis. Representing data points as glyphs is often crucial for in‐depth investigation, but this can lead to significant overlap and visual clutter. Recent post‐processing techniques address this issue, but their computational and/or visual scalability is generally limited to thousands of ...
S. Frey
wiley   +1 more source

A Machine Learning‐Based Model Infers the Sea Surface Velocity of Surface Water and Ocean Topography (SWOT)

Geophysical Research Letters, Volume 52, Issue 9, 16 May 2025.
Abstract High‐resolution sea surface velocity (SSV) is crucial for advancing our understanding of ocean sub‐mesoscale processes, energy cascades, etc. The recently launched Surface Water and Ocean Topography (SWOT) satellite measures sea surface height with a sub‐mesoscale resolved resolution.
Shuyi Zhou, Jihai Dong, Hong Li, Guangjun Xu, Fanghua Xu   +4 more
wiley   +1 more source

A Modular Approach for the Design of Quadruple Ridged Flared Horn Antenna Feeds

IEEE Access
This paper presents the methodology followed for the design of a quad-ridged flared horn (QRFH) feed for the VLBI Global Observing System (VGOS) antennas.
Oscar Garcia-Perez, Felix Tercero, Alejandro Baldominos, Gabriel Gomez-Molina, Alberto Garcia-Merino, David Regajo-Rodriguez, Rocio Sanchez-Montero   +6 more
doaj   +1 more source

Molecularly Defined Lubricant Hydrocarbons from Olefin Metathesis

ChemCatChem, Volume 17, Issue 6, March 17, 2025.
Hydrocarbon‐based lubricants are typically complex mixtures of branched molecules that are challenging to characterize and to relate to macroscopic properties. In this study, we report the synthesis and characterization of molecularly defined lubricants via olefin metathesis and hydrogenation.
Zachariah J. Berkson, Snædís Björgvinsdóttir, Alexander B. Barnes, Roland Riek, Roman Schowner, Michael R. Buchmeiser, Stephen Gibson, Gregory A. Price, Glenn J. Sunley, Christophe Copéret   +9 more
wiley   +1 more source

Evaluating the potential of Indian stations in augmenting the UT1−UTC precision of VGOS Intensive sessions

Earth, Planets and Space
Irregularities in the Earth’s rotation speed are quantified by the difference between Universal Time (UT1) and Coordinated Universal Time (UTC).
Arnab Laha, Matthias Schartner, Benedikt Soja, Sigrid Böhm, Hana Krásná, Nagarajan Balasubramanian, Onkar Dikshit   +6 more
doaj   +1 more source

Optimizing Dye Wastewater Purification: Ultrasonic and Flotation With Ozonation Synergy

Engineering Reports, Volume 7, Issue 1, January 2025.
The article presents the results of experimental studies of the efficiency of purification of model and real wastewater from dyeing and finishing industries using pneumatic flotation using an ozone‐air mixture instead of air and a combination of ultrasonic treatment and ozonation. ABSTRACT The article presents the results of experimental studies of the
Valentin Romanovski, Marina Pilipenko, Alexandr Dubina, Vitaly Likhavitski, Sergey Volodko, Dmitry Moskovskikh, Elena Romanovskaia   +6 more
wiley   +1 more source

Prototype System for Unmanned Reference Point Determination at the Sub‐Millimeter Level

Earth and Space Science
The determination of reference points for telescopes is crucial for obtaining the local‐tie vector for a multi‐technology co‐located station. Traditional methods suffer from labor‐intensive fieldwork, long execution cycles, and systematic errors due to ...
Zhibin Zhang, Zhikang Wang, Xiaohui Ma, Zhengxiong Sun, Dezhen Xu, Chengli Huang, Guangli Wang, Zhaoxiang Qi   +7 more
doaj   +1 more source