Results 81 to 90 of about 921 (215)

Can the subaltern speak through WhatsApp? Unearthing the labour/knowledge of digital methodologies

open access: yesJournal of Law and Society, EarlyView.
Abstract Prompted by the challenges that Syrian refugees posed to a qualitative WhatsApp survey, this article dissects what researchers and research participants actually do when they ‘produce’ knowledge through digital methods such as WhatsApp. While many refugee participants saw the survey as an opportunity to express their views on social tensions ...
LEILA ULLRICH
wiley   +1 more source

On the Development of Turbulent Wakes from Vortex Streets [PDF]

open access: yes, 1954
Wake development behind circular cylinders at Reynolds numbers from 40 to 10,000 was investigated in a low-speed wind tunnel. Standard hot-wire techniques were used to study the velocity fluctuations. The Reynolds number range of periodic vortex shedding
Roshko, Anatol
core   +4 more sources

Terrestrial Ecosystem Detection Based on Deep Learning Framework and Satellite Image Geographical Information

open access: yesGeoscience Data Journal, Volume 13, Issue 3, July 2026.
The proposed deep learning framework integrates ResNet‐50 and LSTM models to detect and classify terrestrial ecosystems from satellite imagery. The workflow begins with image preprocessing using bilateral, guided, and median filters to enhance image quality and preserve edges.
Liang Dong   +5 more
wiley   +1 more source

Experimental Investigation on Vortex-Induced Vibration for a Two-Degree-of-Freedom Rigid Cylinder Under Subcritical Reynolds Numbers

open access: yesJournal of Marine Science and Engineering
In this study, systematic experiments are conducted on a vertical rigid cylinder with two degrees of freedom in the subcritical Reynolds-number regime. The selected flow conditions cover the excitation stage, the lock-in stage, and the post-lock-in stage
Li Zou   +5 more
doaj   +1 more source

Investigation on street vortex

open access: yes, 2012
published_or_final_version ; Mechanical Engineering ; Master ; Master of Science in ...
openaire   +2 more sources

Multiply-interacting Vortex Streets

open access: yes, 2010
20 pages, 12 figures, 22 ...
Oskouei, Babak G.   +2 more
openaire   +2 more sources

On the phenomenon of vortex street breakdown

open access: yesJournal of Fluid Mechanics, 1971
A von Kármán vortex street generated in the usual way was subjected to a deceleration, thereby changing the ratio of longitudinal to lateral spacing between the vortices. Distortion of the individual vortices followed which resulted in annihilation of concentrated vortex regions and creation of a stationary wake flow.
Durgin, William W., Karlsson, Sture K.F.
openaire   +2 more sources

Numerical simulation of flow around an orbiting cylinder at different ellipticity values [PDF]

open access: yes, 2008
This paper deals with the numerical simulation of low Reynolds number flow (Re=120–180) past a circular cylinder in orbital motion. The Navier–Stokes equations, pressure Poisson equations and continuity are written in primitive variables in a noninertial
Baranyi, László
core   +1 more source

What No Research Means: The Problematic of Time and Possibilities for Expansiveness in Interpretive Literacy Research

open access: yesReading Research Quarterly, Volume 61, Issue 3, July/August/September 2026.
ABSTRACT This article examines what becomes possible for interpretive literacy research when time is treated not as a neutral backdrop but as a central problematic. We argue that research does not merely trace temporal sequences; it actively creates temporalities that shape what becomes sensible, thinkable, and sayable within literacy studies.
Gail Boldt, Kevin Leander
wiley   +1 more source

FlowVisualizationExperimentalStudyonTurbulent CoherentStructureinVegetatedOpen ChannelFlow

open access: yes工程科学与技术, 2016
:The flow visualization technology and digital image processing theory were used to study the turbulent coherent structures in vegetated open channel flow.It was demonstrated that the plants in channel has changed the coherent structure which is totally ...
闫静   +4 more
doaj  

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