Results 21 to 30 of about 2,190,376 (310)

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

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

Optimization of Nanowires Ratio in Nano-scale SiNWT Based SRAM Cell

open access: yesMATEC Web of Conferences, 2015
This paper represents the impact of nanowires ratio of silicon nanowire transistors on the characteristics of 6-transistors SRAM cell. This study is the first to demonstrate nanowires ratio optimization of Nano-scale SiNWT Based SRAM Cell.
Hashim Yasir   +2 more
doaj   +1 more source

An estimation method of full scale performance for pulling type podded propellers

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2014
This paper presents a new estimation method of full scale propulsive performance for the pulling type podded propeller. In order to estimate the drag of pod housing, a drag velocity ratio, which includes the effects of podded propeller loading and ...
Park Hyoung-Gil   +2 more
doaj   +1 more source

Multi-scale hybrid numerical simulation of the growth of high-aspect-ratio nanostructures

open access: yes, 2008
Recently, a variety high-aspect-ratio nanostructures have been grown and profiled for various applications ranging from field emission transistors to gene/drug delivery devices.
Ostrikov, K.   +4 more
core   +1 more source

On the Scaling Ratios for Siegel Disks [PDF]

open access: yesCommunications in Mathematical Physics, 2014
The boundary of the Siegel disk of a quadratic polynomial with an irrationally indifferent fixed point and the rotation number whose continued fraction expansion is preperiodic has been observed to be self-similar with a certain scaling ratio. The restriction of the dynamics of the quadratic polynomial to the boundary of the Siegel disk is known to be ...
openaire   +3 more sources

Scaling ratios and triangles in Siegel disks [PDF]

open access: yesMathematical Research Letters, 1999
Let $f(z)=e^{2iπθ} z+z^2$, where $θ$ is a quadratic irrational. McMullen proved that the Siegel disk for $f$ is self-similar about the critical point. We give a lower bound for the ratio of self-similarity, and we show that if $θ=(\sqrt 5-1)/2$ is the golden mean, then there exists a triangle contained in the Siegel disk, and with one vertex at the ...
Buff, Xavier, Henriksen, Christian
openaire   +5 more sources

Problem of prescribing anticoagulant therapy in patients with atrial fibrillation on the regional level

open access: yesМедицинский совет, 2020
Introduction. Cardiovascular diseases are the leading cause of morbidity and mortality worldwide, with heart rhythm disorders accounting for a significant proportion of them.
M. G. Nazarkina   +2 more
doaj   +1 more source

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