Results 81 to 90 of about 252,611 (302)

Experimental Factors and Techniques for Pool Boiling Heat Transfer Enhancement: A Critical Review

open access: yesHeat Transfer, EarlyView.
ABSTRACT This review presents a comprehensive assessment of active strategies for enhancing pool boiling heat transfer, with a focus on techniques that do not rely solely on the boiling surface modification. It examines a broad range of methodologies including fluid additives, external fields, mechanical interventions, and thermal‐geometric tuning that
José E. Pereira   +2 more
wiley   +1 more source

Characterization of extrusion flow using particle image velocimetry

open access: yeseXPRESS Polymer Letters, 2009
The aim of this study was the characterization of polymer flows within an extrusion die using particle image velocimetry (PIV) in very constraining conditions (high temperature, pressure and velocity).
doaj   +1 more source

Near-wall nanovelocimetry based on Total Internal Reflection Fluorescence with continuous tracking

open access: yes, 2014
The goal of this work is to make progress in the domain of near-wall velocimetry. The technique we use is based on the tracking of nanoparticles in an evanescent field, close to a wall, a technique called TIRF (Total Internal Reflection Fluorescence ...
Bresson, Bruno   +8 more
core   +3 more sources

Wheat flour particle size: Influence of mill design and effects on quality and performance

open access: yesJSFA reports, EarlyView.
Abstract Among the various characteristics of wheat (Triticum aestivum) flour, particle size is of paramount importance globally. The industrial process of separating the three main components (endosperm, bran, and germ) must ensure that the desired quality is delivered to customers through a progressive reduction in the size of the endosperm until the
Ricardo Barroso Lopes   +3 more
wiley   +1 more source

Design and Statistical Optimization of PLA Organoclay‐Based Dispersions for Recyclable Packaging Paper

open access: yesPolymer Engineering &Science, EarlyView.
Through experimental design, polylactic acid (PLA)—organoclay dispersions were optimized to produce biobased coatings that have a high barrier potential while maintaining repulpability, promoting sustainable packaging solutions. ABSTRACT Performance and recyclability of paper coatings depend on precise control of polymer, surfactant, filler ...
Abdenour Chenni   +7 more
wiley   +1 more source

Loss of particle ratio metric for particle image velocimetry accuracy estimation

open access: yesActa Polytechnica
This paper presents an algorithm for evaluating measurement uncertainty at individual points within the Particle Image Velocimetry (PIV) method. The algorithm presents a novel correlation plane metric known as the Loss of Particle Ratio (LPR).
Jan Novotný   +3 more
doaj   +1 more source

Investigation on spatial breakup characteristics of low-pressure jets with particle image velocimetry experiment and volume of fluid–level set simulation

open access: yesAdvances in Mechanical Engineering, 2016
In order to study the spatial breakup characteristics of the initial section of low-pressure jets, an experiment was performed to investigate the flow fields and concentration fields of jet flows with different nozzle geometric parameters and also the ...
Yue Jiang   +3 more
doaj   +1 more source

Particle image velocimetry for combustion measurements: Applications and developments

open access: yesChinese Journal of Aeronautics, 2018
In the last several decades, Particle Image Velocimetry (PIV) has reached a high degree of maturity as a laser diagnostic technique based on tracer particles, with significant improvements in accuracy, resolution, dynamic range, and as an extension to ...
Fang Chen, Hong Liu
semanticscholar   +1 more source

An experimental and computational analysis of buoyancy driven flows by laser sheet tomography, particle image velocimetry and computational fluid dynamics [PDF]

open access: yes, 1997
This paper contains details of a three pronged investigation into the development of a buoyant jet impinging on a wall in a closed vessel. The development of the flow was measured experimentally by particle image velocimetry (PIV) and laser sheet ...
Crawley, F   +5 more
core  

Active involvement of students in co-curriculum (sports) versus generic skills [PDF]

open access: yes, 2017
The active involvement of students in sports activities is viewed from different levels of achievement beginning with the national representation of the residential colleges, faculties, and universities in prestigious sporting events at international ...
Azmir, N. A.   +8 more
core   +2 more sources

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