Results 91 to 100 of about 34,106 (228)

Helium bubbles evolution mechanism of SA508-3/52 joint and its effect on nanoindentation hardness and swelling

open access: yesHeat Treatment and Surface Engineering
After metallographic corrosion of dissimilar metal welded joints, a distinct uncorroded bright band, referred to as the ‘white bright band’ (WBB), is often observed on the austenite side immediately adjacent to the fusion line.
Xusheng Qian   +7 more
doaj   +1 more source

Growth of multifractal tungsten nanostructure by He bubble induced directional swelling

open access: yesNew Journal of Physics, 2015
Helium (He) plasma irradiation to tungsten (W) leads to morphology changes in nanometer scale by the formation and growth of He bubbles. Initially pinholes and protrusions are formed on the surface followed by the formation of nanostructures.
Shin Kajita   +3 more
doaj   +1 more source

Comparison of blistering of W bulk and film deposited by magnetron sputtering under helium irradiation

open access: yesNuclear Materials and Energy, 2017
In this work, the W bulk prepared by powder sintering and W film deposited by magnetron sputtering were simultaneously exposed to the helium ions with the energy of 60keV and fluence of 1.0 × 1022 m−2 at room temperature.
Jiangang Yu   +3 more
doaj   +1 more source

Helium Bubbles and Blistering in a Nanolayered Metal/Hydride Composite. [PDF]

open access: yesMaterials (Basel), 2021
Taylor CA   +6 more
europepmc   +1 more source

Fast‐scanning small‐angle X‐ray scattering of hydrated biological cells

open access: yesJournal of Synchrotron Radiation, EarlyView.
Fast‐scanning small‐angle X‐ray scattering on biological cells in aqueous environments reveals intracellular anisotropy and orientation, and allows for systematic assessment of radiation damage caused by the measurements.Due to their high penetration depth, X‐rays enable us to obtain information from the interior of whole unsliced cells. Scanning small‐
Boram Yu   +5 more
wiley   +1 more source

A low power photoemission source for electrons on liquid helium

open access: yes, 2010
Electrons on the surface of liquid helium are a widely studied system that may also provide a promising method to implement a quantum computer. One experimental challenge in these studies is to generate electrons on the helium surface in a reliable ...
A.J. Dahm   +20 more
core   +1 more source

Things at Work: How Things Contribute to Performing Work

open access: yesJournal of Management Studies, EarlyView.
Abstract A crucial question for organizations is what constitutes work performance. While the importance of human competence and motivation to work performance has been established, less well understood is how ‘things’ – such as algorithms, tools, instruments, and raw materials – contribute to work performance.
Jörgen Sandberg   +2 more
wiley   +1 more source

Streakline flow visualization of discrete hole film cooling with holes inclined 30 deg to surface [PDF]

open access: yes
Film injection from three rows of discrete holes angled 30 deg to the surface in line with mainstream flow and spaced 5 diameters apart in a staggered array was visualized by using helium bubbles as tracer particles.
Colladay, R. S.   +2 more
core   +1 more source

Electron Bubbles in Liquid Helium

open access: yes, 2003
When an electron (or positronium atom) is injected into liquid helium with nearly zero energy, a bubble quickly forms around it. This phenomenon (which also occurs in liquid hydrogen, liquid neon and possibly in solid helium) lowers the mobility of the electron to a value similar to that for a positive ion.
openaire   +2 more sources

Multi‐Omics Analyses Reveal the Red and Far‐Red Light Combination Enhancing Heterologous Protein and Metabolite Production in Nicotiana benthamiana

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT Transient expression of exogenous protein in Nicotiana benthamiana leaves via agroinfiltration offers a rapid and efficient platform for functional gene discovery and heterologous production of valuable eukaryotic proteins and metabolites. Though light quality is an important factor for plant photomorphogenesis, its impact on the efficiency of
Yating Zhang   +6 more
wiley   +1 more source

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