Results 81 to 90 of about 1,669,571 (296)
A stabilized low-frequency alternating-current electric arc [PDF]
, 1970 Establishing an arc between water-cooled tungsten-tipped electrodes, maintaining the arc along the centerline of a central jet of argon gas, and surrounding the argon jet with a coaxial sheath of nitrogen stabilizes operation of a low-frequency ac ...
Lanzo, C. D.
core +1 more source
IDCS J1426.5+3508: Cosmological implications of a massive, strong lensing cluster at Z = 1.75
, 2012 The galaxy cluster IDCS J1426.5+3508 at z = 1.75 is the most massive galaxy cluster yet discovered at z > 1.4 and the first cluster at this epoch for which the Sunyaev-Zel'Dovich effect has been observed. In this paper we report on the discovery with HST
Anthony H. Gonzalez +34 more
core +1 more source
Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere
Advanced Engineering Materials, EarlyView.A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz +4 more
wiley +1 more source
Local connectivity and maps onto non-metrizable arcs
International Journal of Mathematics and Mathematical Sciences, 1997 Three classes of locally connected continua which admit sufficiently many maps onto non-metric arcs are investigated. It is proved that all continua in those classes are continuous images of arcs and, therefore, have other quite nice properties.
J. Nikiel, L. B. Treybig, H. M. Tuncali
doaj +1 more source
Control apparatus for spectral energy source [PDF]
, 1967 Automatic light-controlling system for dc arc emission spectrographs controls the vaporization rate of the sample and stabilizes the dc arc. The output energy is regulated such that advantage can be taken of the highly sensitive dc arc source without ...
Gordon, W. A.
core +1 more source
Discrete Mathematics, 1991 Let \(C\) be an irreducible conic of \(\pi=\mathrm{PG}(2,q)\). Then the interior points of \(C\) together with \(C\) form a complete \(((q^ 2+q+2)/2,(q+3)/2))\)-arc, and the interior points together with one point of \(C\) form a complete \(((q^ 2-q+2)/2,(q+1)/2)\)-arc of \(\pi\).
openaire +2 more sources
Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories
Advanced Engineering Materials, EarlyView.Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter +5 more
wiley +1 more source
Arc-analyticity and polynomial arcs [PDF]
Annales Polonici Mathematici, 2004 The author gives an elegant proof that for subanalytic functions the three notions of arc-analyticity, local blow-analyticity and analyticity on restriction to polynomial arcs coincide. The paper is short and very well written.
openaire +2 more sources
Advanced Engineering Materials, EarlyView.Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios +5 more
wiley +1 more source