نتایج جستجو برای: non homogenous

تعداد نتایج: 1325345  

Journal: :Communications in Statistics - Simulation and Computation 2015
Sung Won Han Wei Jiang Lianjie Shu Kwok-Leung Tsui

A Comparison of Likelihood-Based Spatiotemporal Monitoring Methods Under Non-Homogenous Population Size Sung Won Han, Wei Jiang, Lianjie Shu & Kwok-Leung Tsui a Hoffmann-La Roche Inc., Nutley, NJ, USA b Antai College of Economics and Management, Shanghai Jiaotong University, Shanghai, China c Department of Decision Science, University of Macau, Taipa, Macau, P. R. China d Department of Manufact...

Journal: :Prague medical report 2011
S Sfoungaristos A Kavouras K Geronatsiou P Perimenis

Schwannomas are rare tumours that originate from the neural sheath and are usually located in the head and neck, extremities, and posterior mediastinum. Although 3% of schwannomas occur in the retroperitoneum, involvement of visceral organs is extremely uncommon. Schwannomas of the kidney are rare, with only a few reported cases. A 55-year-old woman was referred to our hospital with an abdomina...

2008
M A Jivulescu

where the unknown {Yp}p∈N as well as the non-homogenous term {φp}p∈N are sequences from a vectorial space V , and the coefficients L0,L1, are linear noncommutative operators mapping V on itself, independent from the discrete variable p ∈ N. This equation encompasses interesting problems arising in very different scenarios. If, for instance, the reference space V is the complex Euclidean space C...

2009
N. Melkumyan

This paper introduces an online density reduction algorithm for non-homogenous multidimensional datasets. This work is motivated by applications in terrain modeling using laser data. Unlike most existing density reduction algorithms, the developed algorithm is designed for sequentially provided data and online implementation. Experimental results are presented for a 3D points cloud with 3 milli...

2009
Wagner A. Kamakura

This study compares prices offered by multiple Internet retailers. This task is challenging because e-tailers cannot present their entire assortments to each consumer. Therefore, the quality of the product assortments presented by different e-tailers to each consumer is not directly comparable on an item-by-item basis, resulting in nonhomogeneous offerings across retailers. We further consider ...

Journal: :caspian journal of internal medicine 0
roxana family mehran solati-hashjin shahram namjoy nik ali nemati

background: titanium (ti) implants are commonly coated with hydroxyapatite (ha). however, ha has some disadvantages such as brittleness, low tensile strength and fracture toughness. it is desirable to combine the excellent mechanical properties of zro2 and the chemical inertness of al2o3 with respect to the purpose of this project which was coating ti implants with ha-zro2-al2o3 to modify the s...

1994
Michael de la Maza

This paper describes a set of experiments performed with an artiicial futures market simulation. The non-rational market participants, which evolve simple strategies using genetic algorithms, compete against each other to make proots by buying and selling futures contracts. The dynamic and equilibrium behavior of the participants is studied under a variety of conditions. The results suggest tha...

In this paper, an analytical solution for computing the linear plastic stresses and critical temperature and pressure in a FGM hollow cylinder under the internal pressure and temperature is developed. It has been assumed that the modulus of elasticity and thermal coefficient of expansion were varying through thickness of the FGM material according to a power law relationship. The Poisson's rati...

2012
B. P. Moghaddam A. Aghili

In this paper, a numerical method for solving LNFODE (Linear Non-homogenous Fractional Ordinary Differential Equation) is presented. The method presented is based on Bernstein polynomials approximation. The operational matrices of integration, differentiation and products are introduced and utilized to reduce the LNFODE problem in order to solve algebraic equations. The method is general, easy ...

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