نتایج جستجو برای: rectangular and annular sections

تعداد نتایج: 16841225  

Journal: :REM - International Engineering Journal 2023

This article presents a theoretical and numerical study of bolted sleeve connections with rectangular hollow sections (RHS) under axial tension compression. The geometric form section provides resistance for high loads, torsion combines effects, spreading its utilization in truss systems. In this context, the proposed explore these characteristics RHS offer an attractive aesthetic appearance co...

Journal: :Flow, Turbulence and Combustion (formerly Applied Scientific Research) 2003

2003
Weilin Qu Issam Mudawar

This paper is the first of a two-part study concerning measurement and prediction of saturated flow boiling heat transfer in a water-cooled micro-channel heat sink. In this paper, new experimental results are discussed which provide new physical insight into the unique nature of flow boiling in narrow rectangular micro-channels. The micro-channel heat sink contained 21 parallel channels having ...

Journal: :journal of solid mechanics 0
m goodarzi department of engineering, college of mechanical engineering, ahvaz branch, islamic azad university, ahvaz, iran m mohammadi department of engineering, college of mechanical engineering, ahvaz branch, islamic azad university, ahvaz, iran m khooran department of mechanical engineering, shahid chamran university of ahvaz, iran f saadi department of engineering, college of mechanical engineering, ahvaz branch, islamic azad university, ahvaz, iran

in this study, the vibration behavior of functional graded (fg) circular and annular nanoplate embedded in a visco-pasternak foundation and coupled with temperature change is studied. the effect of in-plane pre-load and temperature change are investigated on the vibration frequencies of fg circular and annular nanoplate. to obtain the vibration frequencies of the fg circular and annular nanopla...

Journal: :journal of seismology and earthquake engineering 0
p. sunitha indian institute of technology madras c.v.r. murty indian institute of technology madras rupen goswami indian institute of technology madras

methods are proposed to develop idealized moment-curvature response curves of slender rectangular rc wall sections with uniformly distributed longitudinal reinforcement, using limit states, namely, cracking of concrete in tension, tensile yielding of reinforcement layers, and compression failure of concrete. it is recommended that tensile yielding of an inner layer of reinforcement is considere...

2016
Abhiram Muralidhar Michael J. Quevillon Kevin D. Dorfman

We confirm Odijk’s scaling laws for (i) the average chain extension; (ii) the variance about the average extension; and (iii) the confinement free energy of a wormlike chain confined in a rectangular nanochannel smaller than its chain persistence length through pruned-enriched Rosenbluth method (PERM) simulations of asymptotically long, discrete wormlike chains. In the course of this analysis, ...

2002
M. Z. Youssef

Experimental simulation to a line source has been realized at FNS, JAERI, within the USDOE/JAERI collaborative Program on Fusion Neutronics. This simulation achieved by cyclic movement of an annular Li20 test assembly relative to a stationary point source was a step forward in better simulation of the energy and angular distributions of the incident neutron source found in Tokamak plasmas. Thus...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه پلیمر و پتروشیمی ایران - پژوهشکده پتروشیمی 1389

this is an original study on the effect of a polyisobutylene – polydimethylsiloxane (pibpdms) block copolymer modifier used as an interfacial active agent on the dynamics behaviour of single newtonian drops suspended in a polyisobutylene (pib) newtonian matrix. the results were divided in two sections. the first part included the experiments carried out on the non-modified and 2% block cop...

2012
K. H. Sayidmarie T. A. Nagem

Three dual band planar monopole antennas for wireless local area network (WLAN) application are proposed. The antennas have common configuration in the form of rectangular, rhombic and annular double rings. All the antennas use the self similarity property to exhibit dual band characteristics. The proposed antennas cover the frequency bands of the IEEE 802.11 a/b/g (2.4–2.48 GHz, 5.15– 5.35GHz ...

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