Results 31 to 40 of about 689,445 (290)

On geometry parameterization for simulation-driven design closure of antenna structures

Scientific Reports, 2021
Full-wave electromagnetic (EM) simulation tools have become ubiquitous in antenna design, especially final tuning of geometry parameters. From the reliability standpoint, the recommended realization of EM-driven design is through rigorous numerical ...
Slawomir Koziel, Anna Pietrenko-Dabrowska   +1 more
doaj   +1 more source

Surface behaviour of the pairing gap in a slab of nuclear matter [PDF]

, 2003
The surface behaviour of the pairing gap previously studied for semi-infinite nuclear matter is analyzed in the slab geometry. The gap-shape function is calculated in two cases: (a) pairing with the Gogny force in a hard-wall potential and (b) pairing ...
Baldo, Baldo, Baldo, Baldo, Baldo, Baranco, Barranco, Déchargé, E. E. Saperstein, Farine, Fayans, Giovanardi, Guichon, Haidenbauer, Haidenbauer, Jeukenne, Khodel, Khodel, Kleban, Lacombe, M. Baldo, M. Farine, M. V. Zverev, P. Schuck, U. Lombardo   +24 more
core   +4 more sources

Geometry-Based Radiation Prediction of Laser Exposure Area for Laser Powder Bed Fusion Using Deep Learning

Applied Sciences, 2022
Laser powder bed fusion (LPBF) is a promising technique used to manufacture complex geometries in a layer-wised manner. Radiation during the LPBF process is influenced by the part geometry, e.g., the overhang angle and the wall thickness. Locally varying
Song Zhang, Anne Jahn, Lucas Jauer, Johannes Henrich Schleifenbaum   +3 more
doaj   +1 more source

Remapping of Greenland ice sheet surface mass balance anomalies for large ensemble sea-level change projections [PDF]

The Cryosphere, 2020
Future sea-level change projections with process-based stand-alone ice sheet models are typically driven with surface mass balance (SMB) forcing derived from climate models. In this work we address the problems arising from a mismatch of the modelled ice
H. Goelzer, H. Goelzer, B. P. Y. Noël, T. L. Edwards, X. Fettweis, J. M. Gregory, J. M. Gregory, W. H. Lipscomb, R. S. W. van de Wal, R. S. W. van de Wal, M. R. van den Broeke   +10 more
doaj   +1 more source

The geometry of some natural conjugacies in ℂn dynamics

International Journal of Mathematics and Mathematical Sciences, 2004
We show that under some simple conditions a topological conjugacy h between two holomorphic self-maps f1 and f2 of complex n-dimensional projective space ℙn lifts canonically to a topological conjugacy H between the two corresponding polynomial self-maps
John W. Robertson
doaj   +1 more source

Adopting the Principle of Closed Set to People Identification Based on Human Hand Geometry [PDF]

Al-Rafidain Journal of Computer Sciences and Mathematics, 2010
We propose a Identification System Based on Human Hand Geometry Features, we extract 50 features to use it in recognition process. By constructing the principle of Close Set Identification System, the system database has been built using modified digital
Maha Al-Hasoo, Zeena Al-kateeb
doaj   +1 more source

GEP- and MLR-based equations for stable channel analysis

Journal of Hydroinformatics, 2021
For decades, research on stable channel hydraulic geometry was based on the following parameters: river discharge, dimensionless discharge, the median size of bed material and the slope.
Mohd Afiq Harun, Aminuddin Ab. Ghani, Reza Mohammadpour, Ngai Weng Chan   +3 more
doaj   +1 more source

The First Release COSMOS Optical and Near-IR Data and Catalog [PDF]

, 2007
We present imaging data and photometry for the COSMOS survey in 15 photometric bands between 0.3um and 2.4um. These include data taken on the Subaru 8.3m telescope, the KPNO and CTIO 4m telescopes, and the CFHT 3.6m telescope. Special techniques are used
A. Comastri, A. Koekemoer, A. Leauthaud, A. Pickles, A. Renzini, A. W. Blain, Aune S., B. Mobasher, Bolzonella M., C. Carilli, C. Impey, C. Liu, C. M. Carollo, C. Porciani, C. Scarlata, D. B. Sanders, D. Schiminovich, D. Thompson, E. Schinnerer, G. Hasinger, G. Zamorani, H. Aussel, H. J. McCracken, Hasinger G., Hauschildt P., Ilbert O., J. A. Peacock, J. Colbert, J. E. Taylor, J. Kartaltepe, J. Koda, J. Rhodes, J.‐P. Kneib, K. Jahnke, K. Sheth, Koekemoer A., L. A. M. Tasca, L. Guzzo, L. Yan, M. Ajiki, M. Brusa, M. Elvis, M. Giavalisco, M. Rich, M. Salvato, M. Scodeggio, McCracken H. J., N. Scoville, O. Ilbert, O. Lefevre, P. Capak, P. Cassata, P. Shopbell, R. Massey, R. S. Ellis, S. Lilly, S. Miyazaki, S. Sasaki, S. Tribiano, Schinnerer E., T. Murayama, T. Nagao, Taniguchi Y., W. Green, Y. Komiyama, Y. Shioya, Y. Taniguchi, Zamojski M. A.   +67 more
core   +5 more sources

Hamiltonian Floer homology for compact convex symplectic manifolds [PDF]

, 2015
We construct absolute and relative versions of Hamiltonian Floer homology algebras for strongly semi-positive compact symplectic manifolds with convex boundary, where the ring structures are given by the appropriate versions of the pair-of-pants products.
Lanzat, Sergei
core   +1 more source

Experimental calibration of a virtual raster section for high-accuracy FDM simulation in Abaqus

Fracture and Structural Integrity
This study presents an experimentally calibrated methodology to enhance the predictive accuracy of finite element simulations for Fused Deposition Modeling (FDM) parts in Abaqus by replacing idealized filament geometry with a physically accurate ...
Taoufik Hachimi, Fouad Ait Hmazi, Fatima Ezzahra Arhouni, Hajar Rejdali, Yahya Riyad, Fatima Majid   +5 more
doaj   +3 more sources