Numerical Estimation of the Geometry and Temperature of An Alternating Current Steelmaking Electric Arc [PDF]
steel research international, 2020 A channel arc model (CAM) that predicts the temperature and the geometry of an electric arc from its voltage and impedance set‐points is presented. The core of the model is a nonlinear programming (NLP) formulation that minimizes the entropy production of a plasma column, the physical and electrical properties of which satisfy the Elenbaas–Heller ...
Jesús D. Hernández +2 more
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Effects of Thermal Cycling on Wire and Arc Additive Manufacturing of Al-5356 Components
Metals, 2020 Wire and arc additive manufacturing (WAAM) provides a promising alternative to conventional machining for the production of large structures with complex geometry, as well as individualized low quantity components, using cost-efficient production ...
Markus Köhler +2 more
doaj +1 more source
Flow loss and structure of circular arc blades with different leading edges
Advances in Mechanical Engineering, 2018 Due to much lower cost of development and production, circular arc blades are often applied to axial flow fans. However, compared with NACA 65 profile, circular arc blades have higher losses, which are caused by the formation of separation bubbles or ...
Tao Bian +4 more
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The Geometry of Leptin Action in the Brain: More Complicated Than a Simple ARC [PDF]
Cell Metabolism, 2009 Leptin signals the repletion of fat stores, acting in the CNS to permit energy utilization by a host of autonomic and neuroendocrine processes and to decrease feeding. While much recent research has focused on the leptin-regulated circuitry of the hypothalamic arcuate nucleus (ARC), the majority of brain leptin receptor (LepRb)-expressing neurons lie ...
Martin G. Myers +3 more
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Influence of p-MIG Welding Parameters to Wall Geometry of Aluminium Alloy 2319 Fabricated Using WAAM
Tehnički VjesnikArc welding processes are used in additive manufacturing today, adding thin layers of metal according to a programmed heat source path. This paper presents a study of the influence of robotic p-MIG process parameters on wall geometry made of aluminium ...
Živko Jurišić, Nikša Krnić
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Optical tomography of the aurora and EISCAT [PDF]
Annales Geophysicae, 1998 Tomographic reconstruction of the three-dimensional auroral arc emission is used to obtain vertical and horizontal distributions of the optical auroral emission.
H. U. Frey +5 more
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The arc-length variation of analytic capacity and a conformal geometry [PDF]
Nagoya Mathematical Journal, 1992 For a domain Ω in the extended complex plane C ∪{∞}, H∞(Ω) denotes the Banach space of bounded analytic functions in Ω with supremum norm ∥ · ∥H∞ For ζ ∈ Ω, we putwhere f′(∞) = lim,z→∞z{f (∞) = f(z)} if ζ = ∞.
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Low‐Activation Compositionally Complex Alloys for Advanced Nuclear Applications—A Review
Advanced Engineering Materials, EarlyView.Low‐activation compositionally complex alloys (LACCAs) are advanced metallic materials primarily composed of low‐activation elements, offering advantages such as rapid compliance with operational standards and safe recyclability. This review highlights their potential for extreme high‐temperature irradiation environments as structural materials for ...
Yangfan Wang +8 more
wiley +1 more source
A Study on Process Characteristics and Performance of Hot Wire Gas Tungsten Arc Welding Process for High Temperature Materials [PDF]
Materials Research, 2016 Hot wire gas tungsten arc welding (HW-GTAW) process is the one where the filler wire is pre-heated close to its melting point before it is fed in to the arc.
Anantha Padmanaban MR +2 more
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3D‐Printed Architected Material for the Generation of Foam‐Based Protective Equipment
Advanced Engineering Materials, EarlyView.This study investigates 3D‐printed architected structures as alternatives to traditional foams in protective gear. It focuses on customizing impact strength and damping through design and manufacturing integration. Testing shows these structures outperform conventional foams, offering enhanced customizability, lower weight, and tunable performance ...
Ali Zolfagharian +5 more
wiley +1 more source