نتایج جستجو برای: composite pipes

تعداد نتایج: 129021  

Journal: :Advances in Mechanical Engineering 2022

Structures dynamic characteristics and their responses can change due to variations in system parameters. With modal of the structures, be identified. Mode shape remains vital analysis structures. It utilized failure analysis, interaction between structures supports circumvent abrupt failure. Conversely, unlike empty pipes, mode shapes for pipes conveying fluid are tough obtain intricacy eigenv...

2015

In this paper an experimental investigation on the thermal storage capacity for a typical composite mixture of paraffinGraphiteCu PCM composite has been studied. Paraffin wax was used as the base phase change material (PCM) and the paraffin has been mixed with Cu turnings in different ratios 10, 50, 70 and 90 weight percentages and considered as a composite. The thermal charge and discharge cap...

2008
Christian Morbidoni Danh Le Phuoc Axel Polleres Matthias Samwald Giovanni Tummarello

In this demo we present a first implementation of Semantic Web Pipes, a powerful tool to build RDF-based mashups. Semantic Web pipes are defined in XML and when executed they fetch RDF graphs on the Web, operate on them, and produce an RDF output which is itself accessible via a stable URL. Humans can also use pipes directly thanks to HTML wrapping of the pipe parameters and outputs. The implem...

2008
Yuemin WANG Lihua SHEN Chuanjun SHEN Fengrui SUN

In the application of guided waves NDT, the selection of exciting frequency is not only related with the setup of sensor, but also with the characteristics of pipe’s structure and material. In this paper, the characteristic of guided waves propagation in pipes that L(0,1) and L(0,2) have a cutoff frequency are respectively discussed, and the calculation formulas of their cutoff frequency are gi...

2015
Amir M. Alani Asaad Faramarzi Rao Bhamidiammarri Kiran Tota-Maharaj

In this paper, a stochastic finite element method (SFEM) is employed to investigate the probability of failure of cementitious buried sewer pipes subjected to combined effect of corrosion and stresses. A non-linear time-dependant model is used to determine the extent of concrete corrosion. Using the SFEM, the effects of different random variables, including loads, pipe material, and corrosion o...

2001
J. Holden

Natural pipes are common in many upland blanket peats, yet little is known about pipe network morphology or pipeflow processes. Most information on soil piping comes from the shallow peaty podzols of the Welsh uplands, where monitoring suggests that pipes may be important contributors to streamflow. This paper presents information on piping and pipeflow from a deep upland blanket peat catchment...

In order to increase the efficiency of the conveyance of the granular solids, a new experimental set-up is designed. The test rig has longitudinal trapezoidal slots in its conveying pipes. Through experimentation, a correlation for friction factor in terms of solid mass flow rate, fluid flow rate and Froude number is presented. It is shown that the mixture friction factor for pipes with inn...

2016
Zahra Hessami Mohammad Reza Masjedi Esmael Mortaz Gholamreza Heydari Mehdi Kazempour-Dizaji Hooman Sharifi Hamidreza Jamaati

BACKGROUND Concurrent use of tobacco products such as cigarettes and water pipes may be associated with increased risk of nicotine dependence and smoking-related complications. Accurate statistics are not available regarding the prevalence of water pipe use or concurrent use of cigarettes and water pipe in the Iranian population. Thus, this study sought to assess the prevalence of concurrent us...

2008
K. C. Misra

Kimberlites discovered so far in southern India are restricted to the Eastern Block of the Dharwar Craton and are distributed in three fields: Wajrakarur, Narayanpet, and Raipur. As summarized recently by Paul et al. (2006) and Patel et al. (2006), known kimberlite pipes in the Wajrakarur kimberlite field (WKF), which lies at the western margin of the Cuddapah Basin, occur in three clusters: Wa...

2008
Brian F. G. Bidulock

With the objective of contrasting performance between STREAMS and legacy approaches to system facilities, a comparison is made between the tested performance of the Linux legacy pipe implementation and the STREAMS-based pipe implementation using the Linux Fast-STREAMS package [? ]. 1 Background Pipes have a rich history in the UNIX operating system. Present on early Bell Laboratories UNIX Versi...

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