Results 11 to 20 of about 953,931 (363)

Investigation of the Effect of Number of Longitudinal Rounded Grooves on Hydrodynamic Forces acting on Cylinders in Cross Flow at Re=10⁵ [PDF]

open access: yesJournal of Eta Maritime Science, 2020
Crossflow over cylindrical structures has been extensively studied by both academia and industry in various fields. It is responsible for in-line and transverse vibrations of marine risers. Flow-induced structural vibrations may end up with the failure
Oktay YILMAZ
doaj   +1 more source

Investigation of working bodies of cotton cleaning machine

open access: yesСовременные инновации, системы и технологии, 2021
The article included information on how to improve the working bodies of the machine for cleaning raw cotton, including large waste mixtures waste disposal sites.
Анвар Джураев   +3 more
doaj   +1 more source

The influence of coolant scale deposit inside the internal combustion engine on the piston and cylinder deformations [PDF]

open access: yesTransport, 2005
This paper presents the analysis of the influence of engine coolant scale deposits on the deformations in the piston ‐ cylinder pair. The results of carried out calculations enable to make more precise evaluation of cylinder repair dimensions.
Giedrius Garbinčius   +3 more
doaj   +2 more sources

COMP Report: CPQR technical quality control guidelines for use of positron emission tomography/computed tomography in radiation treatment planning

open access: yesJournal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Positron emission tomography with x‐ray computed tomography (PET/CT) is increasingly being utilized for radiation treatment planning (RTP). Accurate delivery of RT therefore depends on quality PET/CT data. This study covers quality control (QC) procedures required for PET/CT for diagnostic imaging and incremental QC required for RTP.
Ran Klein   +7 more
wiley   +1 more source

Enhancement of polarizabilities of cylinders with cylinder-slab resonances [PDF]

open access: yesScientific Reports, 2015
AbstractIf an object is very small in size compared with the wavelength of light, it does not scatter light efficiently. It is hence difficult to detect a very small object with light. We show using analytic theory as well as full wave numerical calculation that the effective polarizability of a small cylinder can be greatly enhanced by coupling it ...
Xiao, Meng   +3 more
openaire   +5 more sources

Clinical commissioning of an adaptive radiotherapy platform: Results and recommendations

open access: yesJournal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Online adaptive radiotherapy platforms present a unique challenge for commissioning as guidance is lacking and specialized adaptive equipment, such as deformable phantoms, are rare. We designed a novel adaptive commissioning process consisting of end‐to‐end tests using standard clinical resources.
Kelly Kisling   +5 more
wiley   +1 more source

Evaluation of an EPID in vivo monitoring system using local and external independent audit measurements

open access: yesJournal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose The aim of this work was to evaluate the SunCHECK PerFRACTION, the software for in vivo monitoring using EPID images. Materials/Methods First, the PerFRACTION ability to detect errors was investigated simulating two situations: (1) variation of LINAC output and (2) variation of the phantom thickness.
Samuel Ramalho Avelino   +3 more
wiley   +1 more source

Wrinkling of Elastic Cylinders With Material Properties Varying in Radial Direction

open access: yesFrontiers in Mechanical Engineering, 2022
Although the instability of graded elastic cylinders has been analyzed by many researchers, most of them focused on the core-shell cylinders and film-substrate structures with inhomogeneous Young’s modulus.
Chunxiao Zhan   +3 more
doaj   +1 more source

Numerical Analysis of the Transient Thermal Stress Intensity Factors in Cylinders Containing an External Circumferential Semi-Elliptical Crack [PDF]

open access: yesJournal of Rehabilitation in Civil Engineering, 2023
In this paper, the transient thermal stress intensity factors for circumferential semi-elliptical crack located on the external surface of the cylinder are determined numerically.
Majid Jamal-Omidi   +2 more
doaj   +1 more source

The analysis of kinematic rolling pairs such as «cylinder in cylinder» [PDF]

open access: yesОмский научный вестник, 2023
The article is devoted to the study of specific kinematic pairs used in many areas of mechanical engineering: the so-called «rolling pairs» used in many mechanisms.
A. Kh. Shamutdinov, I. Yu. Lesnyak
doaj   +1 more source

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