Results 1 to 10 of about 22,322 (302)

The Geometry of $(t\mod{q})$-arcs

open access: hybridDesigns, Codes and Cryptography, 2022
Abstract In this paper, we give a geometric construction of the three strong non-lifted $$(3\mod 5)$$ ( 3 mod 5 )
Sascha Kurz   +3 more
openalex   +5 more sources

Predictive Modelling of Weld Bead Geometry in Wire Arc Additive Manufacturing

open access: goldJournal of Manufacturing and Materials Processing
This study investigates the predictive modelling of weld bead geometry in wire arc additive manufacturing (WAAM) through advanced machine learning methods.
Kristijan Šket   +6 more
doaj   +4 more sources

Geometry on Arc Spaces of Algebraic Varieties

open access: green, 2001
This paper is a survey on arc spaces, a recent topic in algebraic geometry and singularity theory. The geometry of the arc space of an algebraic variety yields several new geometric invariants and brings new light to some classical invariants.
Jan Denef, François Loeser
openalex   +4 more sources

The geometry of the Wigner caustic and a decomposition of a curve into parallel arcs [PDF]

open access: hybridAnalysis and Mathematical Physics, 2021
AbstractIn this paper we study global properties of the Wigner caustic of parameterized closed planar curves. We find new results on its geometry and singular points. In particular, we consider the Wigner caustic of rosettes, i.e. regular closed parameterized curves with non-vanishing curvature.
Wojciech Domitrz, Michał Zwierzyński
openalex   +3 more sources

A novel arc geometry setting for pelvic radiotherapy with extensive nodal involvement. [PDF]

open access: yesJ Appl Clin Med Phys, 2016
The aim of this study was to find optimal planning approach for large planning targets with complicated geometry requiring wide field openings. The study presents a novel approach for arc geometry design for pelvic targets with extensive nodal involvement.
Rossi M, Boman E, Skyttä T, Kapanen M.
europepmc   +5 more sources

On the Conformal Geometry of Analytic Arcs

open access: greenAmerican Journal of Mathematics, 1915
Uf (u) =ao+al(u-u0) +a2(u-UO)2+..'.. V=g(v) =b0+bj(v-v0) +b2(t'-V0)2+....2 where u =x+iy and v= x;-iy, x (and y, which may be real or complex, being the Cartesian coordinates of a point; also, f (u) and g (v) have radii of convergence different from zero and a, * 0, b, * 0. Both the real and complex, or general, conformal groups are infinite continuous
G. A. Pfeiffer
openalex   +4 more sources

Research of the influence of the geometry of the discharge chamber on the characteristics of the arc plasmatron. [PDF]

open access: goldJournal of Physics: Conference Series, 2018
© 2018 Institute of Physics Publishing. All rights reserved. This work shows the possibility of a significant effect on the characteristics of the plasma torch by changing the diameter of the arc chamber along its length.
G. Yu. Dautov   +3 more
openalex   +4 more sources

Prediction of deposition bead geometry in wire arc additive manufacturing using machine learning

open access: goldJournal of Materials Research and Technology, 2022
The deposition bead geometry in the arc strike zone is often abnormal compared with that in the middle deposition zone. The accumulation of these errors in the deposition process results in defects in the overall geometry of the deposition bead.
Won-Jung Oh   +2 more
doaj   +2 more sources

One-sided arc averaging geometries in time–distance local helioseismology [PDF]

open access: hybridAstronomy & Astrophysics, 2021
Context. The study of solar oscillations (helioseismology) has been a very successful method of researching the Sun. Helioseismology teaches us about the structure and mean properties of the Sun. Together with mid-resolution data, the local properties were uncovered in quiet-Sun regions.
David Korda, Michal Švanda, T. Roudier
openalex   +7 more sources

Lidar arc scan uncertainty reduction through scanning geometry optimization [PDF]

open access: yesAtmospheric Measurement Techniques, 2016
Doppler lidars are frequently operated in a mode referred to as arc scans, wherein the lidar beam scans across a sector with a fixed elevation angle and the resulting measurements are used to derive an estimate of the n minute horizontal mean wind ...
H. Wang   +3 more
doaj   +5 more sources

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