Results 101 to 110 of about 20,006 (279)

Thunderstorm Charge Distribution Determination Using Cosmic Rays Induced Air Showers and Lightning Imaging at LOFAR

Geophysical Research Letters, Volume 52, Issue 8, 28 April 2025.
Abstract The LOw Frequency ARray (LOFAR) radio telescope possesses the unique capability to measure ultra‐high energy cosmic rays as well as image lightning discharges. This study presents a comparison between the inferred thunderstorm charge structures derived from cosmic‐ray measurements and from lightning flashes.
T. N. G. Trinh, O. Scholten, R. van Loon, B. M. Hare, J. D. Assink, S. Bouma, S. Buitink, A. Corstanje, S. Cummer, M. Desmet, J. Dwyer, H. Falcke, J. R. Hörandel, T. Huege, N. Karastathis, G. K. Krampah, P. Laub, N. Liu, M. Lourens, K. Mulrey, A. Nelles, H. Pandya, C. Sterpka, K. Terveer, S. Thoudam, P. Turekova, S. ter Veen   +26 more
wiley   +1 more source

Microstructure Characterizations and Mechanical Properties of 1050-aluminum Deformed by Equal Channel Angular Pressing [PDF]

Port Said Engineering Research Journal
Equal Channel Angular Pressing (ECAP) is a promising severe plastic deformation technique that has gained significant attention for its ability to refine grain structure and enhance mechanical properties in metallic materials.
Elshafey Gadallah, Mohamed I. A. Habbaa, Eman Elshrief, Abdelkarim Mohamed, Hossam El-Fahhar   +4 more
doaj   +1 more source

Mixing of CNO-cycled matter in massive stars [PDF]

, 2010
Aims: We test predictions of evolution models on mixing of CNO-cycled products in massive stars from a fundamental perspective. Relative changes within the theoretical C:N:O abundance ratios and the buildup of helium are compared with observational results. Methods: A sample of well-studied Galactic massive stars is presented.
arxiv   +1 more source

Texture evolution in biocompatible Mg-Y-Re alloy after friction stir processing [PDF]

, 2019
The presented study deals with the investigation of biocompatible WE 43 Mg-based alloy processed via the combination of rotary swaging (RS) and friction stir processing (FSP) at three different rotational speeds of 400 RPM, 800 RPM, and 1200 RPM.
Dvořák, Jiří, Kocich, Radim, Král, Petr, Kunčická, Lenka   +3 more
core   +1 more source

Use of laryngeal muscle evoked potential recording for experimental vagus nerve stimulation

Animal Models and Experimental Medicine, Volume 8, Issue 4, Page 750-757, April 2025.
Laryngeal muscle evoked potentials (LMEPs) reflect the activation of laryngeal muscles induced by vagus nerve stimulation (VNS) via vagal Aα‐motor fibers. LMEP recordings are minimally invasive and provide a feasible, reliable method for assessing the integrity of the electrode‐nerve interface during experimental VNS in rodents.
Helen Bachmann, Robrecht Raedt, Guy Laureys, Kristl Vonck   +3 more
wiley   +1 more source

Joining UFG Copper by Means of the W2Mi Machine [PDF]

Archives of Metallurgy and Materials
Joining metals with ultra-fine grains (UFG) is very difficult. UFG metals have a grain size of less than 1 µm. Exceeding the recrystallization temperature causes the growth of ultra-fine grains and degradation of the material’s mechanical properties. The
Ł. Morawiński, C. Jasiński, J. Goliński, T.M. Chmielewski   +3 more
doaj   +1 more source

Cryogenic Stress-Driven Grain Growth Observed via Microcompression with in situ Electron Backscatter Diffraction [PDF]

, 2020
The deformation of materials at cryogenic temperature is of interest for space, arctic, and fundamental science applications. In this work, a custom-built cooling system attached to a commercial picoindenter was used for in situ cryogenic ...
Bair, JL, Frazer, D, Homer, ER, Hosemann, P   +3 more
core  

High‑Temperature Image Pre‐Processing Based on ε‐Ga2O3 Photo‐Synapses

Advanced Physics Research, Volume 4, Issue 4, April 2025.
This work reveals the high‐temperature image preprocessors using wide‐bandgap ε‐Ga2O3 optoelectronic synapses. High‐quality ε‐Ga2O3 films is grown. 152 photodetector devices with high uniformity are fabricated. This work demonstrates high‐temperature image compressing based on ε‐Ga2O3 optoelectronic synapses. 4 × 4‐pixel images can be compressed into 4 
Yingtong Lin, Yuhan Zhu, Feng Wang, Yuchen Cai, Zhengqiao Li, Shuhui Li, Xueying Zhan, Jun He, Chao Jiang, Zhenxing Wang   +9 more
wiley   +1 more source

Effect of strain energy on the grain growth behaviour of ultrafine-grained iron-chromium alloy by equal channel angular pressing

Journal of Mechanical Engineering and Sciences, 2020
The grain growth of an ultrafine-grained iron-chromium alloy has been investigated focusing on the early stage of restoration of strain. Ultrafine-grained (UFG) material has been prepared by equal channel angular pressing (ECAP) up to eight passes via ...
Muhammad Rifai, Hiroyuki Miyamoto
doaj   +1 more source

Discovery of a Peculiar Dip from GX 301-2 [PDF]

, 2010
We present temporal and spectral properties of a unique X-ray dip in GX 301-2 as seen with Rossi X-ray Timing Explorer in May 2010. The X-ray pulsation from the source gradually declined prior to the dip, disappears for one spin cycle during the dip and is abruptly restored in the spin cycle immediately after the dip.
arxiv   +1 more source