Zobrazeno 1 - 10
of 3 002
pro vyhledávání: '"High-speed imaging"'
Autor:
Bratislav Lukić, Alexander Rack, Lukas Helfen, Daniel J. Foster, Alexey Ershov, Richard Welss, Stéphane François, Xavier Rochet
Publikováno v:
Journal of Synchrotron Radiation, Vol 31, Iss 5, Pp 1224-1233 (2024)
Ultra-high-speed synchrotron-based hard X-ray (i.e. above 10 keV) imaging is gaining a growing interest in a number of scientific domains for tracking non-repeatable dynamic phenomena at spatio-temporal microscales. This work describes an optimized i
Externí odkaz:
https://doaj.org/article/ba19931133a74622b2cacee36fc6c222
Publikováno v:
Data in Brief, Vol 55, Iss , Pp 110582- (2024)
Boiling is a high-performance heat dissipation process that is central to electronics cooling and power generation. However, there exists a practical limit of boiling heat transfer known as the critical heat flux (CHF), beyond which significant perfo
Externí odkaz:
https://doaj.org/article/2dff38c25afe4064af8da9735675f37b
Autor:
Wenyou Zhang, William M. Abbott, Arnoldas Sasnauskas, Asli Coban, Bobby Gillham, Ioannis Bitharas, Shun Lu, Jennifer Quirke, Siyuan Ruan, Kyle Perkins, Kevin Synnatschke, Matthias Moebius, Shuo Yin, Andrew Moore, Ramesh P. Babu, Rocco Lupoi
Publikováno v:
Virtual and Physical Prototyping, Vol 19, Iss 1 (2024)
To address safety and labour-intensive challenges in laser powder bed fusion, a novel Metal Additive Manufacturing using Powder Sheets (MAPS) method is employed. By examining the formation mechanism of the melt pool, we discovered that MAPS printing
Externí odkaz:
https://doaj.org/article/9c59bac242b244f0882f8d0d67e45fd6
Autor:
Ziyan Li, Xiaoyan Zhang, Kaixing Wang, Fuqiang Liu, Changlong Ruan, Jinhu Yang, Yong Mu, Cunxi Liu, Gang Xu
Publikováno v:
Energies, Vol 17, Iss 18, p 4636 (2024)
This experimental study investigated the influence of different turbine guide vane parameters on the ignition limit and light-round processes in a triple-dome combustor. It was found that for the triple-dome combustor, the minimum fuel/air ratios at
Externí odkaz:
https://doaj.org/article/9039ed0799c04de0bb6a6f6a1dbc40c9
Publikováno v:
Ultrasonics Sonochemistry, Vol 103, Iss , Pp 106754- (2024)
Phase-shift droplets are a highly adaptable platform for biomedical applications of ultrasound. The spatiotemporal response of phase-shift droplets to focused ultrasound above a certain pressure threshold, termed acoustic droplet vaporization (ADV),
Externí odkaz:
https://doaj.org/article/005e084d8472436a9368becee418a2f7
Publikováno v:
Iranian Journal of Electrical and Electronic Engineering, Vol 19, Iss 3, Pp 34-45 (2023)
A two-channel pulsed power supply for an imaging system with brightness amplification and independent synchronous laser illumination is designed. The power supply generates synchronized high-voltage pulses with a frequency of 16–24 kHz, an average
Externí odkaz:
https://doaj.org/article/f380fd76f28a4fd09f81aebf9f133c31
Publikováno v:
Photonics, Vol 11, Iss 6, p 548 (2024)
Vibration measurement is crucial in fields like aviation, aerospace, and automotive engineering, which are trending towards larger, lighter, and more complex structures with increasingly complicated dynamics. Consequently, measuring a structure’s d
Externí odkaz:
https://doaj.org/article/5d03f7cd6ed041b691574037ca993473
Autor:
Miriam Heuer, Mehdi Stiti, Volker Eras, Julia Scholz, Norus Ahmed, Edouard Berrocal, Jan C. Brune
Publikováno v:
Journal of Functional Biomaterials, Vol 15, Iss 5, p 126 (2024)
Treating severe dermal disruptions often presents significant challenges. Recent advancements have explored biological cell sprays as a promising treatment, but their success hinges on efficient cell delivery and complete wound coverage. This require
Externí odkaz:
https://doaj.org/article/fa6d11b67d50445693960277b1e43a5e
Publikováno v:
Pharmaceutics, Vol 16, Iss 5, p 683 (2024)
The standard multi-dose nasal spray pump features an integrated actuator and nozzle, which inevitably causes a retraction of the nozzle tip during application. The retraction stroke is around 5.5 mm and drastically reduces the nozzle’s insertion de
Externí odkaz:
https://doaj.org/article/0ccecff86c4146a7a6ea71e26695412b
Publikováno v:
Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol 17, Iss 6, Pp JAMDSM0081-JAMDSM0081 (2023)
The process map area of laser beam powder bed fusion for the nickel-based superalloy Inconel 718 is investigated using high laser power (600-1000 W) and scanning speeds (1500-3500 mm/s). The process map is defined by the surface morphologies (visuall
Externí odkaz:
https://doaj.org/article/9567b7fe1039409fa31bcbf754947cb0