نتایج جستجو برای: ratio scale

تعداد نتایج: 1049385  

1997
R. Arnowitt Pran Nath

Dark matter detection rates for supergravity models with R parity where supersymmetry is broken at a scale > ∼ MG are discussed. Non-universal soft breaking masses in both the Higgs and squark sectors are considered, and it is seen that these can effect rates by a factor of 10 100 when mχ̃0 1 < ∼ 65 GeV (χ01 = lightest neutralino) but otherwise make relatively small corrections. The b → s+γ bran...

1998
B. M. GAENSLER R. N. MANCHESTER S. JOHNSTON A. J. GREEN

G320.4–01.2 is a complex radio and X-ray source, coinciding on the sky with the young energetic pulsar B1509–58. A young pulsar embedded in a SNR would seem to accord with expectations, but previous observations suggest that all may not be what it seems. Controversy persists over whether the pulsar and the SNR are associated, and as to what causes the remnant's unusual appearance. To answer the...

2014
J. Hansson H. Yasuga S. Basak C. F. Carlborg W. van der Wijngaart T. Haraldsson

We present a Rubbery, Off-Stoichiometric Thiol-Ene-epoxy (OSTE+) polymer for direct lithography manufacturing, demonstrate its use in pneumatic pinch microvalves for lab-on-chip applications, test the lithography process achieving pillars of aspect-ratios (a.r.) 1:8, and characterize it’s surface as hydrophilic.

Journal: :The American journal of psychology 2012
Ragnar Steingrimsson R Duncan Luce Louis Narens

Recent studies based on testable behavioral axioms have concluded that psychological scales of subjective intensive attributes involving the ears and eyes form ratio scales. These studies have shown that a certain commutativity of proportion property must hold under either successive increases or successive decreases, with all other independent dimensions fixed. However, until recently limited ...

2017
Justin E. Campbell James W. Fourqurean

14 The elemental (C, N and P) and isotopic (δ 13 C, δ 15 N) content of leaves of the seagrasses 15 Thalassia testudinum, Halodule wrightii, and Syringodium filiforme were measured across a 16 10,000 km 2 survey of the seagrass communities of South Florida in 1999 and 2000. Trends at 17 local and broad spatial scales were compared to examine interspecific variation in the seagrass 18 characteris...

2008
Jan WECKENDORF Binsheng ZHANG

The vibration serviceability of flooring structures has been of concern for decades. To date, design criteria classifying the dynamic behaviour of different types of timber flooring structures to an acceptable degree have not been well established. Parameters commonly used to investigate and assess vibrational performances of timber floors include natural frequencies, damping ratios, dynamic di...

2003
Indrajit Chowdhury Shambhu P. Dasgupta

For systems with large degrees of freedom, it is difficult to guess meaningful values of Rayleigh damping coefficients α and β at the start of an analysis. A number of general-purpose commercially available have the provision of providing the value of α and β for calculation of Rayleigh damping matrix for dynamic analysis of systems with multi-degree of freedom. Since an engineer may not be in ...

2011
CUNCHEN GAO TONGXING LI SHUHONG TANG ETHIRAJU THANDAPANI

In this article, we obtain several comparison theorems for the second-order neutral dynamic equation “ r(t) ` [x(t) + p(t)x(τ(t))] ́γ”∆ + q1(t)x (δ(t)) + q2(t)x (η(t)) = 0, where γ, λ, β are ratios of positive odd integers. We compare such equation with the first-order dynamic inequalities in the sense that the absence of the eventually positive solutions of these first-order inequalities impli...

Journal: :American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics 2008
Rosemie M A Kiekens Anne Marie Kuijpers-Jagtman Martin A van 't Hof Bep E van 't Hof Huub Straatman Jaap C Maltha

INTRODUCTION Many guidelines, norms, and ideal ratios and angles for attractive faces have been proposed in the literature. The aim of this study was to test the hypothesis that facial attractiveness in adolescents is related to ideal angles and ratios, as indicated in the literature. METHODS Seventy-six laypeople viewed sets of photographs of 64 adolescents and rated them on a visual analog ...

Journal: :European Journal of Operational Research 2002
Merja Halme Tarja Joro Matti Koivu

This paper considers the problem of interval scale data in the most widely used models of Data Envelopment Analysis (DEA), the CCR and BCC models. Radial models require inputs and outputs measured on the ratio scale. Our focus is on how to deal with interval scale variables especially when the interval scale variable is a difference of two ratio scale variables like profit or the decrease/incre...

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