Results 31 to 40 of about 772,601 (302)

A review of non-destructive testing techniques for the in-situ investigation of fretting fatigue cracks

Materials & Design, 2020
Fretting fatigue can significantly reduce the life of components, leading to unexpected in-service failures. This phenomenon has been studied for over a century, with significant progress being made during the past decade.
Y. Kong, C.J. Bennett, C.J. Hyde
doaj   +1 more source

Advances on in situ TEM mechanical testing techniques: a retrospective and perspective view

Frontiers in Materials, 2023
Over the past few decades, in situ transmission electron microscopy (TEM) has emerged as a powerful experimental technique for materials design and characterization. It offers unparalleled dynamic details of materials deformation under mechanical stimuli,
Keqiang Li, Keqiang Li, Yeqiang Bu, Hongtao Wang, Hongtao Wang   +4 more
doaj   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Research on the heat transfer model of double U-pipe ground heat exchanger based on in-situ testing

Frontiers in Energy Research
The Double U-pipe ground heat exchanger, known for its simple process, cost-effectiveness, high heat exchange efficiency, and low thermal resistance, remains the predominant type of ground heat exchanger in today’s shallow geothermal energy development ...
Ruifeng Wang, Ruifeng Wang, Mingchuan Shi, Ke Zhu, Ke Zhu, Jun Yu, Jun Yu, Wei Ren, Wei Ren, Guohong Yan, Guohong Yan, Zhiqiang Yin, Shujie Gao   +12 more
doaj   +1 more source

Clinching in in-situ CT—A numerical study on suitable tool materials

Journal of Advanced Joining Processes, 2020
In lightweight design, clinching is a cost efficient joining method, especially for different joined materials and thicknesses. The quality of such a joint is usually evaluated by ex-situ destructive testing methods.
Daniel Köhler, Robert Kupfer, Maik Gude
doaj   +1 more source

Twin-twin geometric structure effect on the twinning behavior of an Mg-4Y-3Nd-2Sm-0.5Zr alloy traced by quasi-in-situ EBSD

Journal of Magnesium and Alloys, 2023
We studied the microstructure evolution of Mg-4Y-3Nd-2Sm-0.5Zr alloy by quasi-in-situ electron backscatter diffraction (EBSD) along with several strains under compression tests, which provided direct evidence for the influence of different twin-twin ...
Yunwei Gui, Quanan Li, Yibei Xue, Lingxiao Ouyang   +3 more
doaj   +1 more source

Organizing the interface—Plasma membrane architecture and receptor dynamics in virus‐cell interactions

FEBS Letters, EarlyView.
Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley   +1 more source

The hydrogen embrittlement sensitivity of duplex stainless steel with different phase fractions evaluated by in-situ mechanical testing

Fracture and Structural Integrity, 2020
The influence of the austenite (γ) phase fraction on the hydrogen embrittlement of duplex stainless steel is investigated. Heat treatments are performed to create two duplex stainless steel specimens, containing 50% and 44% of austenite, respectively ...
Margo Cauwels, Lisa Claeys, Tom Depover, Kim Verbeken   +3 more
doaj   +1 more source

Prospects of Using Small Scale Testing to Examine Different Deformation Mechanisms in Nanoscale Single Crystals—A Case Study in Mg

Crystals, 2021
The advent of miniaturised testing techniques led to excessive studies on size effects in materials. Concomitantly, these techniques also offer the capability to thoroughly examine deformation mechanisms operative in small volumes, in particular when ...
Daniel Kiener, Jiwon Jeong, Markus Alfreider, Ruth Konetschnik, Sang Ho Oh   +4 more
doaj   +1 more source

Scalable ion traps for quantum information processing

, 2009
We report on the design, fabrication, and preliminary testing of a 150 zone array built in a `surface-electrode' geometry microfabricated on a single substrate.
A P VanDevender, Amini J M, C Ospelkaus, Chiaverini J, D J Wineland, D Leibfried, H Uys, J Britton, J H Wesenberg, J J Bollinger, J M Amini, Jaeger R C, Kim J, Leibrandt D R, Monroe C, Oliviera M H, Press W H, S Seidelin, Schmied R, Steane A M   +19 more
core   +1 more source