Results 71 to 80 of about 14,137 (299)
Nanomaterials, 2022 In recent years, technical advancements in high-heat-flux devices (such as high power density and increased output performance) have led to immense heat dissipation levels that may not be addressed by traditional thermal fluids.
Muhammad Asim, Farooq Riaz Siddiqui
doaj +1 more source
Out‐of‐field neutron radiation from clinical proton, helium, carbon, and oxygen ion beams
Medical Physics, Volume 52, Issue 6, Page 4924-4940, June 2025.Abstract Background In hadron therapy, out‐of‐field doses, which may in the long‐term cause secondary cancers, are mostly due to neutrons. Very recently, 4He and 16O beams have been added to protons and 12C ions for clinical therapy. Purpose The focus of this article is to compare secondary neutron doses produced by clinical protons, 4He, 12C, and 16O ...
Matteo Bolzonella +11 more
wiley +1 more source
Aerodynamic Problems of Launch Vehicles [PDF]
Journal of Astronomy and Space Sciences, 1984 The airflow along the surface of a launch vehicle together with vase flow of clustered nozzles cause problems which may affect the stability or efficiency of the entire vehicle.
Kyong Chol Chou
doaj
Comparison of Cooling Systems in Power Plant Units
Energies, 2021 A new porous system in power plants allowing the management of the crisis of heat exchange at boiling water in porous structures has been investigated.
Alexander Genbach +2 more
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Experimental Flow Investigation of a Truncated Ideal Contour Nozzle [PDF]
, 2006 Various tests showed a significant side load peak for low nozzle pressure ratios during engine start-up and shut down phase. DLR Lampoldshausen carried out tests to examine the flow field in a truncated ideal contour nozzle for low NPR.
Stark, Ralf, Wagner, Bernd
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Nanosecond Hyperquenching for Electron Cryo‐Microscopy Without Air‐Water Interface Artifacts
Chemistry – A European Journal, Volume 31, Issue 29, May 22, 2025.A novel method for the ultrafast vitrification of the biological assemblies is assayed by the electron cryotomography. Protein specimens prepared by this method inherently lack the spatial/structural artifacts, which derive from the surface tension at the air‐water interface (AWI).
Utz H. Ermel +2 more
wiley +1 more source
Conjugate Analyses of Ablation in Rocket Nozzles
Journal of Spacecraft and Rockets, 2019 A methodology coupling the LeMANS flow solver to the MOPAR-MD material response solver is presented, enabling fully coupled, conjugate, two-dimensional simulations of ablation of pyrolyzing materia...
Iain D. Boyd, Peter G. Cross
openaire +2 more sources
Flow separation modes and side phenomena in an overexpanded nozzle [PDF]
FME Transactions, 2012 As a part of an aerodynamics Ecole Polytechnique project, separation modes which occur in supersonic nozzles at overexpanded regimes are numerically investigated and compared with known effects.
Zmijanović Vladeta +2 more
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Analysis of Dual Bell Nozzle Configurations: Design Parameters and Performance Measurements [PDF]
Journal of Applied Fluid MechanicsThe auto-adaptation capability of the dual-bell nozzle (DBN) facilitates and enhances the performance of rocket propulsion systems, thus rendering it suitable for sea-level operations and efficient transitions at varying altitudes.
T. Chehat +3 more
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Oxide‐Based Ceramic Matrix Composites for High‐Temperature Environments: A Review
Advanced Engineering Materials, Volume 27, Issue 7, April 2025.This review examines oxide‐based ceramic matrix composites, focusing on their processing, composition, and mechanical properties for high‐temperature applications. Key topics include oxidation resistance, failure mechanisms, and corrosion behavior, with insights into their potential use in aerospace, nuclear power, and other high‐performance industries.
Karthikeyan Ramachandran +2 more
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