Results 11 to 20 of about 20,493 (265)

Redshift-space distortions with wide angular separations [PDF]

Journal of Cosmology and Astroparticle Physics, 2016
Redshift-space distortions are generally considered in the plane parallel limit, where the angular separation between the two sources can be neglected. Given that galaxy catalogues now cover large fractions of the sky, it becomes necessary to consider them in a formalism which takes into account the wide angle separations.
Reimberg, Paulo, Bernardeau, Francis, Pitrou, Cyril   +2 more
openaire   +2 more sources

Dominant factors influencing weld angular distortion from a viewpoint of generation characteristics of inherent strain (Development of accuracy management system for high quality construction in welded structures on the basis of advanced theory of inherent strain)

Nihon Kikai Gakkai ronbunshu, 2015
In this paper, dominant factors influencing the weld angular distortion were discussed on the theoretical basis of the relation between weld angular distortion and distribution of inherent strain for the more accurate quantifying and managing the weld ...
Shigetaka OKANO, Masahito MOCHIZUKI
doaj   +1 more source

Impact of Gas Metal Arc Welding Parameters on Bead Geometry and Material Distortion of AISI 316L

Journal of Manufacturing and Materials Processing, 2023
This study investigates the impact of gas metal arc welding (GMAW) parameters on the bead geometry and material distortion of AISI 316L. Three parameters—arc current in ampere (A), filler feed rate (m/min), and gas composition—were modified at varying ...
Samir Khrais, Hadeel Al Hmoud, Ahmad Abdel Al, Tariq Darabseh   +3 more
doaj   +1 more source

Experimental study on generation characteristics of weld buckling distortion in thin plate

Nihon Kikai Gakkai ronbunshu, 2016
In this study, a systematic investigation on the effect of welding conditions on longitudinal bending and angular distortions generated in welded thin plate was experimentally performed with a focus on whether or not the weld buckling distortion occurs ...
Shigetaka OKANO, Masahito MOCHIZUKI
doaj   +1 more source

Efficient Distortion Mitigation and Partition Reduction in Mapping Global Geodata: Dual Orthogonal Equidistant Cylindrical Projection Approach

ISPRS International Journal of Geo-Information, 2023
The rapid growth in Earth’s global geospatial data necessitates an efficient system for organizing the data, facilitating data fusion from diverse sources, and promoting interoperability.
Aleksandar Dimitrijević, Aleksandar Milosavljević, Dejan Rančić   +2 more
doaj   +1 more source

Dominant parameter of weld angular distortion in structural materials based on theory of inherent strain (Development of accuracy management system for high quality construction in welded structures on the basis of advanced theory of inherent strain)

Nihon Kikai Gakkai ronbunshu, 2016
In this paper, a dominant parameter of weld angular distortion is discussed based on the identically-distributed inherent strain within mechanical melting zone, which is customized for quantifying and coordinately managing the weld angular distortion ...
Masahito MOCHIZUKI, Shigetaka OKANO
doaj   +1 more source

Regression and Evaluation on a Forward Interpolated Version of the Great Circle Arcs–Based Distortion Metric of Map Projections

ISPRS International Journal of Geo-Information, 2021
We studied the numerical approximation problem of distortion in map projections. Most widely used differential methods calculate area distortion and maximum angular distortion using partial derivatives of forward equations of map projections. However, in
Jin Yan, Tiansheng Xu, Ni Li, Guanghong Gong   +3 more
doaj   +1 more source

Impact of Angular Distortion on the Fatigue Performance of High-Strength Steel T-Joints in as-Welded and High Frequency Mechanical Impact-Treated Condition

Metals, 2018
In general, distortion has significant effects on the assembly process of welded structures and remarkable influences on the strength of the welds. Therefore, this work focuses on the effect of angular welding distortion on fatigue strength to improve ...
Markus J. Ottersböck, Martin Leitner, Michael Stoschka   +2 more
doaj   +1 more source

Image-Based Angular Distortion Metric of Map Projections by Using Surface Fitting for Noise Reduction

ISPRS International Journal of Geo-Information, 2021
Measuring, analyzing, reducing, and optimizing distortions in map projections is important in cartography. In this study, we introduced a novel image-based angular distortion metric based on the previous spherical great circle arcs-based metric.
Jin Yan, Tiansheng Xu, Ni Li, Guanghong Gong   +3 more
doaj   +1 more source

A New Study on the Fatigue Properties of SA Weld Joints by Considering the Effects of Welded Bead Shape

Journal of Marine Science and Engineering, 2022
Tandem SAW (Submerged Arc Welding) is one welding process that has been applied to maximize the welding productivity at the panel stage in ship building field.
Dongpil Cho, Seongkil Nam, Chulho Cho, Dajung Lee, Eunyoung Jeong, Youngcheon Jeong, Jaeyik Lee, Marcus Cridland, Bongjin Kim, Kwangsoo Kim, Jihoon Kim, Myunghyun Kim   +11 more
doaj   +1 more source