Results 41 to 50 of about 117,133 (285)

High accuracy binary black hole simulations with an extended wave zone [PDF]

open access: yes, 2009
We present results from a new code for binary black hole evolutions using the moving-puncture approach, implementing finite differences in generalised coordinates, and allowing the spacetime to be covered with multiple communicating non-singular ...
A. Ashtekar   +10 more
core   +3 more sources

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

open access: yesAdvanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi   +3 more
wiley   +1 more source

Comparative modelling of crack propagation in elastic–plastic materials using the meshfree local radial basis point interpolation method and eXtended finite-element method [PDF]

open access: yesRoyal Society Open Science, 2019
The modelling and understanding of crack propagation for elastic–plastic materials is critical in various engineering applications, such as safety analysis of concrete structures and stability analysis of rock slopes.
Yazhe Li   +3 more
doaj   +1 more source

A new approach for the generation of real-time GNSS low-latitude ionospheric scintillation maps

open access: yesJournal of Space Weather and Space Climate, 2023
Ionospheric scintillation disturbs radio frequency signals affecting navigation based on Global Navigation System (GNSS), especially in Brazil, due to the large magnetic declination.
Martinon André R. F.   +2 more
doaj   +1 more source

Compressor performance modelling method based on support vector machine nonlinear regression algorithm [PDF]

open access: yesRoyal Society Open Science, 2020
To overcome the difficulty of having only part of compressor characteristic maps including on-design operating point, and accurately calculate compressor thermodynamic performance under variable working conditions, this paper proposes a novel compressor ...
Yulong Ying   +3 more
doaj   +1 more source

Local interpolation schemes for landmark-based image registration: a comparison

open access: yes, 2014
In this paper we focus, from a mathematical point of view, on properties and performances of some local interpolation schemes for landmark-based image registration.
Allasia, Giampietro   +2 more
core   +1 more source

Weighted interpolation inequalities: a perturbation approach [PDF]

open access: yes, 2016
We study optimal functions in a family of Caffarelli-Kohn-Nirenberg inequalities with a power-law weight, in a regime for which standard symmetrization techniques fail.
Dolbeault, Jean   +2 more
core   +4 more sources

A Compact Spin‐Coated Graphene UWB Antenna for Breast Tumor Detection

open access: yesAdvanced Engineering Materials, EarlyView.
A compact, spin‐coated graphene ultra‐wideband patch antenna designed for breast tumor detection, capable of distinguishing between malignant and benign tumors. This innovative antenna can serve as an effective initial screening tool, particularly in resource‐limited settings such as rural areas, where access to advanced medical equipment like MRI and ...
Raja Rashidul Hasan   +9 more
wiley   +1 more source

New Approach for Radial Basis Function Based on Partition of Unity of Taylor Series Expansion with Respect to Shape Parameter

open access: yesAlgorithms, 2020
Radial basis function (RBF) is gaining popularity in function interpolation as well as in solving partial differential equations thanks to its accuracy and simplicity. Besides, RBF methods have almost a spectral accuracy.
Saleh A. Bawazeer   +2 more
doaj   +1 more source

Proposal of point-wise power reconstruction for IRT-4M fuel assemblies in coupled Monte-Carlo calculations

open access: yesActa Polytechnica CTU Proceedings, 2022
Current efforts to develop high-fidelity multi-physics tools for research reactors with IRT-4M fuel leads to the involvement of Monte-Carlo transport and subchannel thermo-hydraulic codes in the process of safety assessment.
Pavel Jíška, Jan Frýbort
doaj   +1 more source

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