Results 21 to 30 of about 818,829 (307)

A small footprint couch‐top support device for image‐guided radiotherapy of heavy patients

open access: yesJournal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose Patients with body weights close to or above 400 lbs present unique challenges in radiation therapy since the weight limit of most treatment couches decreases as the couch‐top extends toward the treatment gantry. The purpose of this work was to develop a small footprint couch‐top support platform to safely perform image‐guided ...
Huixiao Chen   +5 more
wiley   +1 more source

Statistical process control to monitor use of a web‐based autoplanning tool

open access: yesJournal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose To investigate the use of statistical process control (SPC) for quality assurance of an integrated web‐based autoplanning tool, Radiation Planning Assistant (RPA). Methods Automatically generated plans were downloaded and imported into two treatment planning systems (TPSs), RayStation and Eclipse, in which they were recalculated using ...
Hunter Mehrens   +5 more
wiley   +1 more source

Numerical Study on the Flow Past Three Cylinders in Equilateral-Triangular Arrangement at Re = 3 × 106

open access: yesApplied Sciences, 2022
One of the most common systems in engineering problems is the multi-column system in the form of an equilateral-triangular arrangement. This study used three-dimensional numerical simulations to investigate the flow around three cylinders in this ...
Mohan Zhang   +4 more
doaj   +1 more source

Aerodynamics and three-dimensional effect of a translating bristled wing at low Reynolds numbers

open access: yesScientific Reports, 2022
The smallest insects fly with bristled wings at very low Reynolds numbers (Re) and use the drag of the wings to provide the weight-supporting force and thrust.
Wenjie Liu, Mao Sun
doaj   +1 more source

Robust optimisation of the streamlined shape of a high-speed train in crosswind conditions

open access: yesEngineering Applications of Computational Fluid Mechanics, 2023
Traditional deterministic aerodynamic optimisation cannot consider environmental uncertainty, which may lead to sensitivity issues. The present study proposes a robust design framework for the aerodynamic optimisation of high-speed trains, which accounts
Yeteng Wang   +4 more
doaj   +1 more source

Directed percolation in aerodynamics: resolving laminar separation bubble on airfoils [PDF]

open access: yes, 2017
In nature, phase transitions prevail amongst inherently different systems, while frequently showing a universal behavior at their critical point. As a fundamental phenomenon of fluid mechanics, recent studies suggested laminar-turbulent transition ...
Gülker, Gerd   +4 more
core   +3 more sources

Numerical Study of Formation of a Series of Bubbles from an Orifice by Applying Dynamic Contact Angle Model

open access: yesAdvances in Materials Science and Engineering, 2020
The dynamic contact angle model is applied in the formation process of a series of bubbles from Period-I regime to Period-II regime by using the VOF method on a 2D axisymmetric domain.
Nan Chen, Xiyu Chen, Antonio Delgado
doaj   +1 more source

Experimental investigation of geometry effects and performance of five-hole probe in measuring jets in crossflow [PDF]

open access: yesE3S Web of Conferences, 2022
Vortical and shear flows are common in turbomachinery. Multi-hole pressure probes are used in turbomachinery flows in order to provide robust and accurate measurements of both pressure and velocity components.
Magkoutas Konstantinos   +2 more
doaj   +1 more source

Investigation of the Concepts to Increase the Dew Point Temperature for Thermal Energy Recovery from Flue Gas, Using Aspen®

open access: yesEnergies, 2019
Thermal energy of flue gases (FG) dissipating from industrial facilities into the environment, constitute around 20% of the total dissipated thermal energy.
Nataliia Fedorova   +5 more
doaj   +1 more source

Aerodynamic-Aeroacoustic Optimization of a Baseline Wing and Flap Configuration

open access: yesApplied Sciences, 2022
Optimization design was widely used in the high-lift device design process, and the aeroacoustic reduction characteristic is an important objective of the optimization.
Shengjun Ju   +5 more
doaj   +1 more source

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