The fluctuating bed shear stress has largely been investigated only for the conditions of uniform channel flows and boundary layers. In practical engineering, the flow conditions are often modified due to the presence of various hydraulic structures. To what extent the modification affects the known characteristics of the bed shear stress is not clear. This study presents experimental results o...

OBJECTIVE To investigate the effects of height, external pressure, and bladder fullness on the flow rate in continuous, non-continuous cystoscopy and the automated irrigation fluid pumping system (AIFPS). MATERIALS Each experiment had two 2-litre 0.9% saline bags connected to a continuous, non-continuous cystoscope or AIFPS via irrigation tubing. Other equipment included height-adjustable dri...

Collateralized Debt Obligations (CDOs) are sophisticated financial products that offer a range of investments, known as tranches, at varying risk levels backed by a collateral pool typically consisting of corporate debt (bonds, loans, default swaps, etc.). The analysis of the risk-return properties of CDO tranches is complicated by the highly nonlinear and time dependent relationship between th...

Two-dimensional Euler equations have been solved on an unstructured grid. An upwind finite volume scheme, based on Roes flux difference splitting method, is used to discretize the equations. Using advancing front method, an initial Delaunay triangulation has been made. The adaptation procedure involves mesh enrichment coarsening in regions of flow with high low gradients of flow properties, acc...

Numerical 2D simulation and research on internal flow field and external flow field of rocket motor nozzle using FLUENT software. Analyze the flow condition of internal flow field and external flow field, and according to add in the amount of the different gas components, obtain the clear distribution of contour of density flow field, pressure flow field and various material components and so o...

Light-weight Flow Admission Protocol, LFAP, allows an external Flow Admission Service (FAS) to manage flow admission at the switch, allowing flexible Flow Admission Services to be deployed by a vendor or customer without changes to, or undue burden on, the switch. Specifically, this document specifies the protocol between the switch Connection Control Entity (CCE) and the external FAS. Using LF...

This paper examines the effects of costly external financing on the optimal timing of a firm’s investment. By altering the optimal investment timing, costly financing affects current investment and the sensitivity of investment to internal cash flow. Importantly, the relation between the cost of external funds and investment-cash flow sensitivity is non-monotonic. Investment-cash flow sensitivi...

Abstract: Presence of externally applied electric field can cause the flow field in the micron and submicron channels; this generated flow field is called electroosmotic. In this type of flow field, the presence of the external electric field causes the extra generated heat in the domain that may affect the performance of the system (Joule heating effect). In the present study, an analytical ap...

in this work, mathematical modeling of microbial(trichosporon sp.) biomass production in a stirred tankbioreactor and in an external airlift bioreactor has beeninvestigated. a model based on a tanks-in-seriesmodel without back-flow has been used to simulate theproduction of single cell protein in the external airliftbioreactor under an unsteady condition and withoutoxygen limitation, utilizing ...

The Effects of Intra-Arterial Histamine on Blood Flow in the Internal and External Carotid Artery of Man • Both internal and external carotid artery phasic blood flow and arterial pressure were measured in five patients during a control period and after the intra-arterial injection of 13.8 fig of histamine phosphate into each vessel. In the internal carotid artery, flow for the group increased ...