نتایج جستجو برای: stable distribution

تعداد نتایج: 853663  

In this study, stable lattices of terpolymer butyl acrylate, methyl methacrylate, and styrene were synthesized by a mini-emulsion polymerization technique using tert-butyl hydroperoxide TBHP/Fe2 /ethylenediaminetetraacetic acid/sodium formaldehyde sulfoxylate redox initiators at room temperature, and the kinetics of the reaction were studied. The reaction rate was obtained from periodic samplin...

Journal: :journal of sciences islamic republic of iran 0

the source of cement in oilfields is critical to the prediction of the distribution of cements in the reservoirs and also prediction of reservoir quality. the source of mineral forming cements has been determined for the storrington oolitic carbonate reservoir (middle jurassic great oolite formation, weald basin, onshore uk) using a combination of petrography, electron microscopy, fluid inclusi...

پایان نامه :0 1391

بیمه گران همیشه بابت خسارات بیمه نامه های تحت پوشش خود نگران بوده و روش هایی را جستجو می کنند که بتوانند داده های خسارات گذشته را با هدف اتخاذ یک تصمیم بهینه مدل بندی نمایند. در این پژوهش توزیع های فیزتایپ در مدل بندی داده های خسارات معرفی شده که شامل استنباط آماری مربوطه و استفاده از الگوریتم em در برآورد پارامترهای توزیع است. در پایان امکان استفاده از این توزیع در مدل بندی داده های گروه بندی ...

2000
Preben Kidmose

First, we propose two versions of a sliding window, block based parameter estimator for estimating the parameters in a symmetrical stable distribution. The proposed estimator is suitable for parameter estimation in audio signals. Second, the suitability of the stable distribution, for modelling audio signals, is discussed. For a broad class of audio signals, the distribution and the stationarit...

ژورنال: علوم آب و خاک 2008
رستمی, برزو, سیدی, فرامرز, کریمی‌زاده, رحمت‌الله, صفی‌خانی نسیمی, منصور , محمدی, محتشم, محمودی, علی اکبر,

One of the applications of Non-Parametric methods is determination of genotypes rank in different environments, which is also used as a measuring stability. A stable genotype shows similar ranks across different environments and has minimum rank variance in different environments. Non-Parametric Stability Statistics require no statistical assumptions about the distribution of the phenotypic val...

رستمی, برزو, سیدی, فرامرز, کریمی‌زاده, رحمت‌الله, صفی‌خانی نسیمی, منصور , محمدی, محتشم, محمودی, علی اکبر,

One of the applications of Non-Parametric methods is determination of genotypes rank in different environments, which is also used as a measuring stability. A stable genotype shows similar ranks across different environments and has minimum rank variance in different environments. Non-Parametric Stability Statistics require no statistical assumptions about the distribution of the phenotypic val...

2009

A stable mixture distribution is presented as a model for intermediate range financial logarithmic returns. The model is developed from the observation of high frequency one minute market returns, which can be well modeled by random noise generated by a stable distribution multiplied by a non-random market parameter which is a measure of market volatility. The stable distribution has an Α param...

2008
Julien Clément Kwan-Wu Chin

This paper presents two new properties of BGP routes. First, it shows that the frequency of autonomous systems (ASs) appearing in path vectors follow a Power-Law relationship. Secondly, it shows that path lengths can be characterized accurately by stable distributions. The main implication of these properties is that it allows the creation of realistic forwarding tables for simulation studies. ...

2011
Tibor K. Pogány Saralees Nadarajah S. Nadarajah

Explicit closed forms are derived for the probability density function of the stable distribution Sα(β, γ, μ), α ∈ (1, 2]. Consequent asymptotic expansions are given. The expressions involve the Srivastava-Daoust generalized Kampé de Fériet hypergeometric S-function, the Fox-Wright generalized hypergeometric Ψ-function, and the Gauss hypergeometric function 2F1. 2000 Mathematics subject classif...

2013
W.-D. Heller Philipp Ehrler Markus Höchstötter

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