نتایج جستجو برای: ethyleneoxy bridge

تعداد نتایج: 52673  

ژورنال: مهندسی دریا 2010
بشارتی گیوی, محمدحامد, حکیم زاده, حبیب,

Investigation of the flow pattern around bridge piers is of utmost importance because of its great effect on destruction of the piers. Despite the hydrodynamical and structural values of designing sections causing minimum turbulence against the flow passing the bridge pier, a review of the literature shows that investigation of the flow pattern around bridge piers with varying section has not b...

M.R. Maheri and A Rangbaran, S. Roushanbin,

There are a number of parameters influencing the dynamic and seismic response of bridges. Of these, two important parameters warranting special notice include: the properties of the neoperenes in the state of connection between girders and columns and the shear stiffness of underlying soil in the level of bridge substructure’s connectivity to the ground. In this paper, the effects of these tw...

ژورنال: علوم آب و خاک 2016
سبهانی, مرتضی , مسجدی, علیرضا ,

Riprap is used to control scouring around the bridge abutment. In order to study the stability of riprap around two bridge abutments with two different shapes, experiments were conducted in a laboratory flume made of Plexiglass in 180 degree bend.  In this research, several experiments were done by placing the two bridge abutments made of Plexiglas in a series of riprap. Experiments included tw...

1998
Guofeng Mao

Laboratory measurements on dynamic thermal performance of a thermal bridge at the Division of Building Technology, Kungliga Tekniska Högskolan in Stockholm, are presented in this paper. In order to analyse the measured results, dynamic multi-dimensional modelling that can describe the dynamic behaviour of thermal bridges in a simple and accurate way is required. A network method with a Π-link r...

2003
Hanchuan Peng Chris H. Q. Ding

Learning Bayesian network structure from large-scale data sets, without any expert-specified ordering of variables, remains a difficult problem. We propose systematic improvements to automatically learn Bayesian network structure from data. (1) We propose a linear parent search method to generate candidate graph. (2) We propose a comprehensive approach to eliminate cycles using minimal likeliho...

Journal: :Ars Comb. 2010
Hau Chan Dinesh G. Sarvate

It is shown that for 2 ≤ t ≤ n− 3, a strict t-SB(n, n− 1) design does not exist, but for n ≥ 3, a non-strict 2-SB(n, n−1) design exists. The concept of large sets for Steiner triple systems is extended to SB designs and examples of a large sets for SB designs are given.

2012
Jussi Kangas Seppo Pohjolainen

Mathematics is important in science, technology and economics. Unfortunately, in recent decades students' mathematical skills seem to have deteriorated in western countries. Tampere University of Technology (TUT) has an extensive set of measures to support and help freshmen with their mathematics skills. At the start of their studies, all students have to take the Basic Skills Test (BST) in Mat...

Journal: :Journal of Graph Theory 1996
Eckhard Steffen

We develop four constructions for nowhere-zero 5-ows of 3-regular graphs which satisfy special structural conditions. Using these constructions we show a minimal counterexample to Tutte's 5-ow conjecture is of order 44 and therefore every bridgeless graph of nonorientable genus 5 has a nowhere-zero 5-ow. One of the structural properties is formulated in terms of the structure of the multigraph ...

Journal: :European journal of protistology 2006
Daode Ji Weibo Song John Clamp

The morphology, infraciliature and silverline system of three marine peritrichous ciliates, Pseudovorticella zhengae n. sp., P. difficilis (Kahl, 1933) Jankowski, 1976 and P. punctata (Dons, 1918) Warren, 1987, were investigated by observation in vivo and silver-staining methods. The new species is characterized by its body shape, the appearance of the peristomial lip, the number of transverse ...

Journal: :Journal of Graph Theory 2017
Giuseppe Mazzuoccolo Eckhard Steffen

Tutte’s 5-Flow Conjecture from 1954 states that every bridgeless graph has a nowhere-zero 5-flow. In 2004, Kochol proved that the conjecture is equivalent to its restriction on cyclically 6-edge connected cubic graphs. We prove that every cyclically 6-edge-connected cubic graph with oddness at most 4 has a nowhere-zero 5-flow.

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