Results 31 to 40 of about 572,139 (217)

Genomic insights into phage-host interaction in the deep-sea chemolithoautotrophic Campylobacterota, Nitratiruptor

open access: yesISME Communications, 2022
The genus Nitratiruptor represents one of the most numerically abundant chemolithoautotrophic Campylobacterota populations in the mixing zones of habitats between hydrothermal fluids and ambient seawater in deep-sea hydrothermal environments. We isolated
Yukari Yoshida-Takashima   +5 more
doaj   +1 more source

Structure and Properties of Arc Ion Plating Deposited AlCrSiN Coatings Controlled by Pulsed Bias Voltage

open access: yesMetals, 2023
AlCrSiN coatings are promising protective candidates for cutting and forming tools. During the coating deposition process, the microstructure and properties of the coatings were dramatically affected by bias voltages.
Rui Zhang   +5 more
doaj   +1 more source

Type two cuts, bad cuts and very bad cut

open access: yesJournal of Symbolic Logic, 1997
AbstractType two cuts, bad cuts and very bad cuts are introduced in [10] for studying the relationship between Loeb measure and U-topology of a hyperfinite time line in an ω1-saturated nonstandard universe. The questions concerning the existence of those cuts are asked there.
openaire   +2 more sources

Mechanical and Microstructural Properties of High-Speed Friction Stir Welding of AA 7020 Aluminum Alloy Using Multi-Pin Tool

open access: yesMetals
High-speed friction stir welding (HSFSW) has emerged as a promising technique for improving the manufacturing efficiency of aluminum alloy structures by enabling faster welding while maintaining the quality of welded joints.
Ramin Delir Nazarlou   +4 more
doaj   +1 more source

Target erosion process during broad ion beam sputtering using 3D modeling of ion trajectories

open access: yesAIP Advances, 2022
Understanding the distribution of particles sputtered from a target requires an appreciation of how ions impinge on the target. In pursuit of this goal, a fully three-dimensional model of the ion trajectories in a broad ion beam, assuming full space ...
Wjatscheslaw Sakiew   +2 more
doaj   +1 more source

Extension of Gap Bridgeability and Prevention of Oxide Lines in the Welding Seam through Application of Tools with Multi-Welding Pins

open access: yesMetals, 2021
Friction stir welding has become important in many areas of production and is increasingly used for joining aluminum components. For long welding seams, conventional tools with only one welding pin reach their technical limitations due to low gap ...
Marcel Hatzky, Stefan Böhm
doaj   +1 more source

Synchrotron radiation X-ray diffraction analysis of pyrophyllite under high-pressure

open access: yes矿业科学学报, 2019
High-pressure synchrotron radiation X-ray diffraction experiment on pyrophyllite powders of Mentougou in Bejing were carried out.It was found that the (002) peak of pyrophyllite was diminished when pressure up to 15 GPa,the layered orderly stacking ...
Deng Wenli   +4 more
doaj   +1 more source

An Updated Method for Stability Analysis of Milling Process with Multiple and Distributed Time Delays and Its Application

open access: yesApplied Sciences, 2021
Predicting and avoiding the onset of milling chatter are desirable to reduce its harm to machine tools, workpieces, and cutters. This paper presents an updated method to complete the stability prediction for the milling process with multiple and ...
Gang Jin   +5 more
doaj   +1 more source

Experimental Study on the Oxidation and Diffusion Behavior of Inconel 625 and Tool Materials

open access: yesCrystals, 2018
Oxidation and diffusion simulation experiments were conducted to choose the most suitable material for cutting the Inconel 625 superalloy. Three tool materials, WC/Co, coated carbide, and ceramic were used as tool materials in the oxidation simulation ...
Erliang Liu   +5 more
doaj   +1 more source

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