نتایج جستجو برای: latticed column

تعداد نتایج: 74324  

Journal: :Journal of Geographical Systems 2016
C. Jacobs-Crisioni Carl C. Koopmans

This paper introduces a GIS-based model that simulates the early geographical expansion of transport networks. It progressively adds extensions to a growing network by choosing the most attractive investments from a limited choice set. Attractiveness is defined as a function of variables in which revenue and broader societal benefits may play a role and can be based on empirically underpinned p...

Journal: :Journal of investigational allergology & clinical immunology 2007
R X Zhang S Q Yu J Z Jiang G J Liu

OBJECTIVE To analyze the roles of chemokines and their receptors in the pathogenesis of allergic rhinitis by observing the complementary DNA (cDNA) expression of the chemokines and their receptors in the nasal mucosa of patients with and without allergic rhinitis, using gene chips. METHODS The total RNAs were isolated from the nasal mucosa of 20 allergic rhinitis patients and purified to mess...

Journal: :international journal of environmental research 2011
y. zhang f. li j. wang

influence of soil organic matter (som) on the adsorption, desorption and transport of polycyclic aromatic hydrocarbons (pahs) has already been given full investigation in soils. in this paper, confocal laser scanning microscope (clsm) was used to elucidate aqueous leaching of pahs in different types of soil with soil columns, which enhanced understanding on transport of pahs appreciably. four ...

Journal: :journal of petroleum science and technology 2014
javad - ivakpour norolah kasiri

the simulation of distillation columns is an essential step in design, optimization, and rating. in this paper, a new procedure has been proposed for the initial estimation of column profiles based on modified kremser’s group method for simple and/or complex columns. the effect of this initialization algorithm on simulation procedure has been studied through two examples. the results show signi...

Journal: :journal of oil, gas and petrochemical technology 0
artur wodołażski central mining institute (gig) department of energy saving and air protection

in this paper, a cfd model of syngas flow in slurry bubble column was developed. the model is based on an eulerian-eulerian approach and includes three phases: slurry of solid particles suspended in paraffin oil and syngas bubbles. numerical calculations carried out for catalyst particles, bubble coalescence and breakup included bubble-fluid drag force and interfacial area effects. also, the ef...

Journal: :Journal of Structural and Construction Engineering (Transactions of AIJ) 2003

Journal: :Journal of Structural and Construction Engineering (Transactions of AIJ) 2013

Journal: :Journal of Structural and Construction Engineering (Transactions of AIJ) 2000

Journal: :bulletin of the iranian mathematical society 0
a. armandnejad vali-e-asr university of rafsanjan z. mohammadi vali-e-asr university of rafsanjan f. akbarzadeh vali-e-asr university of rafsanjan

let a and b be n × m matrices. the matrix b is said to be g-row majorized (respectively g-column majorized) by a, if every row (respectively column) of b, is g-majorized by the corresponding row (respectively column) of a. in this paper all kinds of g-majorization are studied on mn,m, and the possible structure of their linear preservers will be found. also all linear operators t : mn,m ---> mn...

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