Sharif Digital Repository

In this study, the effect of submerged vanes on the flow pattern and dimensions of separation zone at a 90˚ open-channel Junction were investigated. The experiments were conducted in three stages. First, for validity of data with the results of webber et al, using ADV, velocities was teken without submerged vanes.in the second stage, experiments with dye injection was performed at confluence for several initial arrangement of vanes. From 54 different arrangements, two arrangements were selected. In three stage, three dimensional velocities was teken in two arrangement selected. Due to the significant reduction the size of separation zone in one of these arrangements, with moving this... 

Content-Centric Network is a new network paradigm. In this paradigm, contents are the main element of the network, and the place holding the content is transparent to users. In other words, the concept of content’s place is eliminated. In spite of other common paradigms in which caching operation is occurred in just a few predefined nodes and also it is limited to a specific application, in this kind of network, caching operation can be occurred in all nodes, independent of the application. Furthermore, due to elimination of the concept of the content’s place, matching of same contents held in different places can be possible. So caching in such networks became an important issue. In caching... 

Formation damage in petroleum engineering is an important and fundamental phenomenon. During drilling operation, penetration of either the solid phase of drilling fluid or the base-fluid into the porous medium, reduces the permeability of the formation. While most experiments in the literature have focused on core-scale and beyond, there is lack of pore-scale studies. Moreover, presence of fractures has an undeniable effect on the extent of formation damage. Thus, the main objective of this dissertation is to investigate the effects of fractures on the severity of formation damage caused by the water-based drilling fluid and the mechanisms of formation damage at the pore scale, using glass... 

F-BAR protein is one of the Bin/Amphiphysin/Rvs (BAR) superfamily proteins which contributes in curvature generation and stabilization of lipid membranes. These proteins usualy form lattices on the membrane and can sculpt the membrane. In this project the interaction of F-BAR protein with a lipid membrane is modeled using coarse grained molecular dynamics approach. In order to describe the curvature generation and stabilization we would need an appropriate coarse grained model for the lipid membrane. In this project the proposed model for the membrane describes a membrane in liquid phase with a lateral diffusion in the lipid bilayer. Depth and width of the lipids potential is determined in...