Results 121 to 130 of about 2,421,794 (345)

Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres

Advanced Engineering Materials, EarlyView.
This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann, René Gustus, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +3 more
wiley   +1 more source

Pure bending of beams made of multimodular behavior material under creep conditions

Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2012
The problem of pure bending of beams with rectangular and circular cross-section is solved at steady-state creep, taking into account the different characteristics of the material in tension and compression.
Alexander M Lokoschenko, Kamilla A Agakhi, Leonid V Fomin   +2 more
doaj  

Design of steel and concrete composite beams according to NBR8800:2008 using pygad genetic algorithm and python implementation [PDF]

REM: International Engineering Journal
In this article presents a programming routine that was developed based on the Python language for the design of non-slender web steel beams having mono symmetrical and doubly symmetrical sections, with welded and rolled profiles, and composite steel and
Paula Cristina de Lima Bastos, Francisco de Assis das Neves, Walliston dos Santos Fernandes   +2 more
doaj   +1 more source

Revisit of combined parallel‐beam/cone‐beam or fan‐beam/cone‐beam imaging [PDF]

Medical Physics, 2013
Purpose:This aim of this paper is to revisit the parallel‐beam/cone‐beam or fan‐beam/cone‐beam imaging configuration, and to investigate whether this configuration has any advantages.Methods:Twenty years ago, it was suggested to simultaneously use a parallel‐beam (or a fan‐beam) collimator and a cone‐beam collimator to acquire single photon emission ...
openaire   +2 more sources

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, Maik Szafarska, René Gustus, Kai Möhwald, Hans Jürgen Maier   +4 more
wiley   +1 more source

Dual accelerating Airy-Talbot recurrence effect

, 2015
We demonstrate the dual accelerating Airy-Talbot recurrence effect, i.e., the self-imaging of accelerating optical beams, by propagating a superposition of Airy beams with successively changing transverse displacements.
Belić, Milivoj R., Liu, Xing, Xiao, Min, Zhang, Yanpeng, Zhang, Yiqi, Zhong, Hua, Zhong, Weiping   +6 more
core   +1 more source

Generation of wavelength-independent subwavelength Bessel beams using metasurfaces

Light: Science & Applications, 2016
Bessel beams are of great interest due to their unique non-diffractive properties. Using a conical prism or an objective paired with an annular aperture are two typical approaches for generating zeroth-order Bessel beams. However, the former approach has
W. T. Chen, M. Khorasaninejad, A. Zhu, Jaewon Oh, R. Devlin, Aun Zaidi, F. Capasso   +6 more
semanticscholar   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Theoretical and numerical analysis of reinforced concrete beams with confinement reinforcement

Revista IBRACON de Estruturas e Materiais
This paper discusses the use of confinement in over-reinforced concrete beams. This reinforcement consists of square stirrups, placed in the compression zone of the beam cross-section, in order to improve its ductility.
R. G. Delalibera, J. S. Giongo
doaj   +1 more source

Beam-beam

The interaction of the two beams in a collider leads to a variety of effects that may limit the performance of the machine. This lecture introduces the basic aspects necessary to understand the design of modern colliders.
openaire   +2 more sources