نتایج جستجو برای: cylinders

تعداد نتایج: 8382  

Journal: :The European physical journal. E, Soft matter 2003
T R Weikl

Biological and biomimetic membranes often contain aggregates of embedded or adsorbed macromolecules. In this paper, the indirect interactions of cylindrical objects adhering to a planar membrane are considered theoretically. The adhesion of the cylinders causes a local perturbation of the equilibrium membrane shape, which leads to membrane-mediated interactions. For a planar membrane under late...

2012
A. G. Ramm M. I. Andriychuk

Electromagnetic (EM) wave scattering by many parallel infinite cylinders is studied asymptotically as a → 0, where a is the radius of the cylinders. It is assumed that the centers of the cylinders x̂m are distributed so that N (∆) = ln( 1 a ) ∫ ∆ N(x)dx[1 + o(1)], where N (∆) is the number of points x̂m = (xm1, xm2) in an arbitrary open subset of the plane xOy, the axes of cylinders are parallel ...

2015
Henrik Kettunen Henrik Wallén Ari Sihvola

This paper studies constructing advanced effective materials using arrays of circular radially-anisotropic (RA) cylinders. Homogenization of such cylinders is considered in an electrodynamic case based on Mie scattering theory. The homogenization procedure consists of two steps. First, we present an effectively isotropic model for individual cylinders, and second, we discuss the modeling of a l...

2007
Tohru Ifukube Yasuyuki Shimizu

T. Ifukube, et.al., "WaxPhonograph Cylinders Recorded by Pilsudski & Its Reproduction Method," J.A. S.J vol. 40,(1984) T. Iwai, et.al., "Reproduction of Sound from Old Wax Cylinders Using the Laser-beam Reflection Method," Appl. Opt., vol. 25, (1986) T. Ifukube, et.al., "New Methods of Sound Reproduction from Old Wax Phonograph Cylinders," J. A. S. A, vol. 85,(1987) T. Ifukube, et.al., "Restora...

2017
Ming Zhao Liang Cheng Hongwei An Feifei Tong

Flow and flow-induced vibration of a square array of cylinders are investigated by two-dimensional numerical simulations. Flow past 36 cylinders in an inline arranged square array and 33 cylinders in a staggered arranged square array is firstly simulated, for Re=100 and the spacing ratios of L/D=1.5, 2, 3, 4, 5. Only one vortex street is observed in the wake of the cylinder array when the spaci...

Journal: :international journal of advanced design and manufacturing technology 0
mohammad morad sheikhi hamidreza shamsolhoseinian rasool moradi dastjerdi

in this paper, stress and displacement fields of functionally graded (fg) nanocomposite cylinders reinforced by carbon nanotubes (cnts) subjected to internal pressure and in thermal environment are investigated by finite element method. the nanocomposite cylinders are combinations of single-walled carbon nanotubes (swcnts) and isotropic matrix. material properties are estimated by a micro mecha...

2017
Shamsul Islam Ghazala Nazeer Zhou Chao Ying Ziaul Islam Raheela Manzoor

A two-dimensional numerical study of flow across rows of identical square cylinders arranged in staggered fashion is carried out. This study will unreveal complex flow physics depending upon the Reynolds number (Re) and gap spacing (g) between the cylinders. The combined effect of Reynolds number and gap spacing on the flow physics around staggered rows of cylinders are numerically studied for ...

Journal: :Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology 2009
Christina Karlsson Lennart Bodin Karin Piehl-Aulin Mats G Karlsson

BACKGROUND Although tissue microarray (TMA) studies of histopathologic material have been frequently reported in studies of malignant diseases, the question of sample size (i.e., the diameter and the number of tissue cylinders investigated) has been rarely discussed. This study addresses the methodologic question of sample size in a variety of tumor types. MATERIAL AND METHODS Material from 2...

2000
Yoshinori Teshima Yoshinori Watanabe Tohru Ogawa

We report a new periodic structure of the cylinder packing. All the cylinders are congruent and the length of the cylinders are infinite and their directions are restricted to only six directions of 〈110〉. Each cylinder is fixed by cylinders of other directions, so that the whole structure sustains mechanical stability. The packing density equals to

Journal: :Bulletin of the World Health Organization 2009
Stephen R C Howie Sarah Hill Augustine Ebonyi Gautam Krishnan Ousman Njie Momodou Sanneh Mariatou Jallow Warren Stevens Kevin Taylor Martin W Weber Pamela Collier Njai Mary Tapgun Tumani Corrah Kim Mulholland David Peel Malick Njie Philip C Hill Richard A Adegbola

OBJECTIVE To compare oxygen supply options for health facilities in the Gambia and develop a decision-making algorithm for choosing oxygen delivery systems in Africa and the rest of the developing world. METHODS Oxygen cylinders and concentrators were compared in terms of functionality and cost. Interviews with key informants using locally developed and adapted WHO instruments, operational as...

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