This study examines the usage of computational fluid dynamics (CFDs) for estimating the time-elapsed decay of contaminants within a chamber experiencing high Reynolds flow. CFD results were compared with measurements taken at a controlled facility. In addition, parameters of the CFD simulation were examined; namely the effects of turbulence and inertial transport at high Reynolds number ventila...

For developing design envionment for various types of Dynamically Reconfigurable Processor Arrays (DRPAs), the GCI (Graph with Configuration Information) is proposed to represent configurable resource in the target dynamically reconfigurable architecture. The function unit, constant unit, register, and routing resource can be represented in the graph as well as the configuration information. Th...

OBJECTIVES A new method was developed to harvest bilateral internal thoracic artery grafts using a subxiphoid approach and robotic assistance. The present study compared the potential utility of the subxiphoid method with that of the lateral thoracic approach. METHODS The first part of the study examined the optimal placement of the instrument ports to maximize the robotic arms' range of moti...

Next-generation wavelength routing optical networks requiring optical cross connects (OXC) in the network have the ability to direct optical signals from any input interface to suitable output interfaces by configuring their internal embedded optical switch matrices. Microelectromechanical systems (MEMS) switches are regarded as the most promising technology to achieve such functionality. We co...

The growing progression in the use of containers as standardized charge unity in maritim transport and the tecnological revolution associated to this has involved deep changes in the nature of interport competition. At first, the concept of Hinterland is becoming obsolete because the use of containers provide the intermodality and so remove monopolistic position of ports in his next influence a...

This paper presents a micro cell compression stimulator for evaluating real-time cellular responses to compression stimuli. The device was produced by a micro three-dimensional structure fabrication process using multiple exposures to the photoresist. The device consists of a pressure inlet port, cell inlet ports, a gasket, microchannels, cell culture chambers, and a diaphragm on the culture ch...

A 2D model is developed for fluid flow, mass transport and cell distribution in a hollow fibre membrane bioreactor. The geometry of the modelling region is simplified by excluding the exit ports at either end and focusing on the upper half of the central section of the bioreactor. Cells are seeded on a porous scaffold throughout the extracapillary space (ECS), and fluid pumped through the biore...

Plume dilution and transverse mixing can be considerably enhanced by helical flow occurring in three-dimensional heterogeneous anisotropic porous media. In this study, we perform tracer experiments in a fully three-dimensional flow-through chamber to investigate the effects of helical flow on plume spiraling and deformation, as well as on its dilution. Porous media were packed in angled stripes...

The lack of simple interfaces for microfluidic devices with a large number of inlets significantly limits production and utilization of these devices. In this article, we describe the fabrication of a reusable manifold that provides rapid world-to-chip connectivity. A vacuum network milled into a rigid manifold holds microdevices and prevents leakage of fluids injected into the device from port...