Results 11 to 20 of about 2,056,468 (266)

Numerical Assesment of a Small-Scale and Very Low Tip Speed Ratio Wind Turbine [PDF]

open access: yesE3S Web of Conferences, 2021
The aim of this paper is to study by CFD the performance and to characterize the velocity fields in the wake of an horizontal axis wind turbine. The design of this wind turbine is far from classical as it has been designed to work at very low angular ...
Bourhis Martin   +3 more
doaj   +1 more source

Gender differences in loudness perception may be linguistically influenced

open access: yesMechanical Engineering Journal, 2019
Previous studies have reported gender differences in loudness perception. To clarify factors that affect loudness perception of men and women, so that differences in their processing of auditory stimuli might be revealed, we conducted four experiments ...
Mariko TSURUTA-HAMAMURA   +2 more
doaj   +1 more source

Psychology of ustoychivost': numerical scale for assessing human’s ustoychivost' according to the golden ratio rule [PDF]

open access: yesE3S Web of Conferences, 2020
Exploring man, the modern psychology of Europe and America began to actively apply the concepts stability and/or resistance that, in Russia psychology, are combined into one concept — ustoychivost’.
Kazankov Vyacheslav, Gubin Vladimir
doaj   +1 more source

Modeling the plasmasphere to topside ionosphere scale height ratio

open access: yesJournal of Space Weather and Space Climate, 2015
A new model of plasmasphere to topside ionosphere scale heights ratio is developed, based on topside electron density (Ne) profiles deduced from the International Satellites for Ionospheric Studies (ISIS)-1 satellite measurements.
Marinov Pencho   +3 more
doaj   +1 more source

Invariant foreground occupation ratio for scale adaptive mean shift tracking

open access: yesIET Computer Vision, 2015
The mean shift algorithm has been introduced successfully into the field of computer vision to be an efficient approach for visual tracking but the tracker has been awkward in handling the scale change of the object.
Yi Song   +4 more
doaj   +1 more source

Analyzing the rent-to-price ratio for the housing market at the micro-spatial scale

open access: yesInternational Journal of Strategic Property Management, 2018
The rent-to-price ratio is one of the popular indicators for monitoring the property market. This study explores micro-scale spatial dynamics of the ratio for houses at the individual property level in Seoul, South Korea. We match the apartment unit sold
Changro Lee, Keyho Park
doaj   +1 more source

A ratio scale for social distance

open access: yesJournal of the Experimental Analysis of Behavior, 2020
Choosing a larger–later reward over a smaller–sooner reward may be thought of as altruism toward one's future self. A question that arises in this connection is: What is the relation between delay and social discounting? To begin to answer this question, social and delay discount functions need to be comparable.
Vasiliy, Safin, Howard, Rachlin
openaire   +3 more sources

Large-scale age-dependent skewed sex ratio in a sexually dimorphic avian scavenger. [PDF]

open access: yesPLoS ONE, 2012
Age-dependent skewed sex ratios have been observed in bird populations, with adult males generally outnumbering females. This trend is mainly driven by higher female mortality, sometimes associated with anthropogenic factors.
Sergio A Lambertucci   +3 more
doaj   +1 more source

Scale invariant for one-sided multivariate likelihood ratio tests [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2010
Suppose 1 2 , ,..., n X X X is a random sample from Np ( ,V ) distribution. Consider 0 1 2 : ... 0 p H      and1 : 0 for 1, 2,..., i H   i  p , let 1 0 H  H denote the hypothesis that 1 H holds but 0 H does not, and let ~ 0 H denote ...
Samruam Chongcharoen
doaj  

The Scale Effect Study on the Transient Fluid–Structure Coupling Performance of Composite Propellers

open access: yesJournal of Marine Science and Engineering, 2022
In order to predict the fluid–structure coupling performance of a full-scale composite propeller under a wake flow field behind a full ship, a bidirectional transient fluid–structure coupling algorithm was established.
Zheng Huang   +4 more
doaj   +1 more source

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