نتایج جستجو برای: composite frame of rcs

تعداد نتایج: 21180813  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - پژوهشکده فنی و مهندسی 1388

asymmetric polyethersulfone (pes) microfiltration flat sheet membranes were composed by the phase inversion method (pim) and were used as supports. composite membranes were fabricated by coating silicone rubber as selective layer. effect of different concentrations of pes and pdms and different solvent such as nmp, dmf and dms effects as pes solvents and support thickness and different coagulat...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده ادبیات و زبانهای خارجی 1393

abstract in written mode of language, metadiscourse markers are used commonly to help writers in general and academic writers in particular to produce coherent and professional texts. the purpose of the present study was to compare introduction sections of applied linguistics and physics articles regarding their use of interactive and interactional metadiscourse markers based on the model pro...

Journal: :journal of dental school, shahid beheshti university of medical sciences 0
s. sargolzaei dept of oral & maxillofacial pathology, school of dentistry, shahid beheshti university of medical sciences, tehran, iran. a. roufegarinejad faculty of dentistry, mcgill university, montreal, canada s. shamszadeh iranian center for endodontic research, research institute of dental science, shahid beheshti university of medical sciences, tehran, iran.

objective: periapical granulomas (pgs) and radicular cysts (rcs), as the most common odontogenic lesions have yet unclear pathogenesis. this study was aimed to compare pcna and ki-67 expression in pgs and rcs and evaluate their possible relationship with two lesions. methods: in this cross-sectional descriptive study, twenty pgs and twenty rcs were evaluated immunohistochemically using an anti-...

A. Roufegarinejad, S. Sargolzaei, S. Shamszadeh,

Objectives: Periapical Granulomas (PGs) and Radicular Cysts (RCs), as the most common odontogenic lesions have yet unclear pathogenesis. This study was aimed to compare PCNA and Ki-67 expression in PGs and RCs and evaluate their possible relationship with two lesions. Methods: In this cross-sectional descriptive study, twenty PGs and twenty RCs were evaluated immunohistochemically using an a...

Journal: :Development 2012
Floor J Stam Timothy J Hendricks Jingming Zhang Eric J Geiman Cedric Francius Patricia A Labosky Frederic Clotman Martyn Goulding

The spinal cord contains a diverse array of physiologically distinct interneuron cell types that subserve specialized roles in somatosensory perception and motor control. The mechanisms that generate these specialized interneuronal cell types from multipotential spinal progenitors are not known. In this study, we describe a temporally regulated transcriptional program that controls the differen...

1996
Patrick Lambrix Lin Padgham

In this paper we present a description logic for composite objects and show its use for domain modeling in a particular application. The description logic extends standard description logics by providing support for representation of and reasoning about part-of. We have extended the standard reasoning tasks of subsumption, classification and recognition to include knowledge about part-of. Furth...

2005
Rosanne D’Arrigo David Frank Rob Wilson Gordon Jacoby

We describe a new tree-ring width data set of 14 white spruce chronologies for the Seward Peninsula (SP), Alaska, based on living and subfossil wood dating from 1358 to 2001 AD. A composite chronology derived from these data correlates positively and significantly with summer temperatures at Nome from 1910 to 1970, after which there is some loss of positive temperature response. There is inferr...

Journal: :Int. J. Satellite Communications Networking 2010
Gianluigi Liva Marco Papaleo Cristina Parraga Niebla Stefano Cioni Sandro Scalise Alessandro Vanelli-Coralli Giovanni Emanuele Corazza Pansoo Kim Ho-Jin Lee

In this paper, the design of a new very short frame introduced in the upcoming version of DVB-RCS standard targeting interactive mobile services will be described. The frame design with a special focus on channel coding and performance are addressed in detail, as well as an evaluation of the QoS performance for realistic traffic scenarios, propagation channel conditions, and carrier sizes. Copy...

2007
C. Frigerio Martins P. Salucci

We present an analysis of a devised sample of Rotation Curves (RCs), aimed at checking the consequences of a modified f(R) gravity in galactic scales. Originally motivated by the the dark energy mystery, this theory may serve as a possibility of explaining the observed non-Keplerian profiles of galactic RCs in terms of a breakdown of the Einstein General Relativity. We show that in general the ...

Density functional theory dispersion corrected (DFT-D3)calculations and molecular dynamic (MD) simulation were applied to investigate the sensing ability of four types of receptors (RCs) composed of the ortho-phenylenediamine based bis-ureas for selective complexation with the anions such as Cl–, Br–, OAC–, PhCO2–, H2PO4– and HSO4– in the gas phase and DMSO. On the basis of the data obtained fr...

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