Results 61 to 70 of about 1,116,436 (266)

Nanoscale Confinement Enhances Ultrafast Demagnetization

Advanced Science, EarlyView.
Next generation spintronics may depend on successfully combining femtosecond spin dynamics with nanoscale device miniaturization. We address this by systematically studying the effect of nanoscale confinement on the femtosecond demagnetization of Iron. By combining ultrafast experiments sensitive to spins, charge carriers, and phonons, we uncover a nm ...
Yoav William Windsor, Tobias Lojewski, Moumita Kundu, Klaus Sokolowski‐Tinten, Nico Rothenbach, Andrea Eschenlohr, Markus Ernst Gruner, Katharina Ollefs, Carolin Schmitz‐Antoniak, Soma Salamon, Daniela Zahn, Laurenz Rettig, Christian Schüßler‐Langeheine, Niko Pontius, Renkai Li, Mianzhen Mo, Suji Park, Xiaoshe Shen, Stephen Weathersby, Xijie Wang, Rossitza Pentcheva, Heiko Wende, Ulrich Nowak, Uwe Bovensiepen   +23 more
wiley   +1 more source

ENHANCED IMPINGEMENT JET COOLING OF GAS TURBINE WALL HEAT TRANSFER USING CFD CHT CODE: INFLUENCE OF WALL THERMAL GRADIENT WITH FIN AND DIMPLE OBSTACLES

Arid Zone Journal of Engineering, Technology and Environment, 2019
Gas turbine (GT) jet cooling using the regenerative or impingement jet backside cooling system is applicable to low NOx GT combustors and was investigated in the present work. The impingement heat transfer investigated is for the techniques where all the
A. M. El-Jummah, G. E. Andrews, J. E. J. Staggs   +2 more
doaj   +2 more sources

Electronic Chip‐Mimetic Medical Implants for Controllable Sonothermal Treatments

Advanced Science, EarlyView.
Inspired by the thermal effect of working electronic chips, which consist of various heterostructures, an sonothermal‐responsive platform has been developed through constructing metal‐semiconductor interface on implants. Biofilm infection and deep vein thrombosis can be successfully treated by controllable ultrasound treatments.
Zhengdong Zhang, Pan Liu, Jie Lei, Shuchang Peng, Qiu Chen, Wei Guan, Yizhou Zhu, Gang Liu, Xiaobo Feng, Cao Yang, Lei Tan   +10 more
wiley   +1 more source

Heat spreading of liquid jet impingement cooling of cold plate heat sink with different fin shapes

, 2020
This paper presents the heat spreading of the cold plate heat sink with different fin shapes (rectangular, circular, conical) using the jet impingement technique impinging on the heating surface.
S. Wiriyasart, P. Naphon
semanticscholar   +1 more source

Scan‐Path‐ and Initial‐State‐Dependent Superdomain Switching in (111)‐Oriented PZT

Advanced Electronic Materials, EarlyView.
Scan trajectory and initial superdomain topology govern polarization switching in (111)‐oriented PZT. Automated AFM writing, pulsing experiments, and interferometric 3D‐PFM show that raster scans reproducibly stabilize ordered Type‐I stripe superdomains with constrained variant selection, whereas spiral trajectories generate frustrated mixed‐variant ...
Rama Vasudevan, Laveeza Ahmad, Bharat Pant, Ralph Bulanadi, Asraful Haque, Puneet Kaur, Sabine Neumayer, Jan‐Chi Yang, Yongtao Liu, Ye Cao, Stephen Jesse, Marti Checa   +11 more
wiley   +1 more source

Advancing Energy Materials by In Situ Atomic Scale Methods

Advanced Energy Materials, Volume 15, Issue 11, March 18, 2025.
Progress in in situ atomic scale methods leads to an improved understanding of new and advanced energy materials, where a local understanding of complex, inhomogeneous systems or interfaces down to the atomic scale and quantum level is required. Topics from photovoltaics, dissipation losses, phase transitions, and chemical energy conversion are ...
Christian Jooss, Michael Seibt, Martin Wenderoth, Oliver Bünermann, Ole Bunjes, Till Domröse, Christian Eckel, Francesca Falorsi, Christoph Flathmann, Monica Kolek Martinez de Azagra, Matthias Krüger, Jonas Lindner, Tobias Meyer, Claus Ropers, Ulrich Ross, Kai Rossnagel, Sreeju Sreekantan Nair Lalithambika, Simone Techert, Georg A. Traeger, Cynthia Volkert, R. Thomas Weitz, Alec M. Wodtke   +21 more
wiley   +1 more source

CFD Simulation of a Temperature Control System for Galvanizing Line of Metal Band Based on Jet Cooling Heat Transfer

Applied Sciences, 2020
The work focuses on the development of a thermo-fluid dynamic simulation model of a section of close cooling, called a jet cooler, inserted in the galvanizing line of metal band production.
Giovanni Carozzo, Carlo Cravero, Martino Marini, Matteo Mazza   +3 more
doaj   +1 more source

Pre‐Curved Everting Robots With Embedded Steering Intelligence Fabricated by CO2 Laser Welding

Advanced Intelligent Systems, EarlyView.
Design and experimental demonstration of a laser welded growing robot for anatomically guided navigation. The robot follows an aortic arch phantom entering the branchiocephalic branch through steering by design. The figure shows the physical phantom setup, CAD defined weld geometry and full robot eversion.
Brandon Saldarriaga, Panagiotis Kalozoumis, Panagiotis Vartholomeos, Carlo Seneci, Kawal Rhode, Christos Bergeles   +5 more
wiley   +1 more source

Experimental characterization and model validation of liquid jet impingement cooling using a high spatial resolution and programmable thermal test chip

Applied Thermal Engineering, 2019
High efficiency direct liquid jet impingement cooling with locally distributed outlets is very promising in high power electronic devices. In order to elucidate the flow-thermal interaction for micro-scale jet impingement cooling, sensitive temperature ...
Tiwei Wei, H. Oprins, V. Cherman, G. van der Plas, I. De Wolf, E. Beyne, M. Baelmans   +6 more
semanticscholar   +1 more source

Nanofluids against traditional fluids: a comprehensive analysis of impingement jets

Journal of Taibah University for Science
Efficient temperature control plays a pivotal role across various industrial sectors, encompassing manufacturing and electronics. In certain cooling system scenarios, the application of impingement jet technology has emerged as a dominant contender ...
Raheem K. Ajeel, Saba N. Fayyadh, Hayder Kareem Talla, Sakhr M. Sultan, Mohd Faizal Fauzan   +4 more
doaj   +1 more source