The fluid flow and heat transfer in a three-dimensional microchannel filled with Al2O3- water nanofluid is numerically investigated. The hybrid scheme is used to discretize the convection terms and SIMPLER algorithm is adopted to couple the velocity and pressure field in the momentum equations. The temperature fields, variation of horizontal velocity along the centre line of the channel, a...

Medical cyber-physical systems (MCPSs) extend the notion of conventional medical devices to more complex technical systems in close connection to humans, e.g., acquiring sensor data, controlling a treatment, or monitoring recovery. Typically, these systems include the patient in the loop and require a high degree of dependability and fail safety. One challenge is the complex nature of physiolog...

Detectors with cross strip anodes have been used in open face and sealed tube detectors for detection of particles and light. In combination with high resolution position encoding electronics these have the capability of being able to independently record the accurate time and position of each detected photon event. Sealed tube (18 mm) microchannel plate cross strip anode detectors with superge...

By modeling the statistical evolution of an avalanche created by 20 keV protons impacting the input surface of a z-stack microchannel plate ~MCP! detector, the mean secondary electron yield gC of avalanche electrons propagating through a MCP channel is measured to equal 1.37 for 760 V per MCP in the z stack. This value agrees with other studies that used MCP gain measurements to infer gC . The ...

A non destructive low intensity ion beam profile monitor has been designed and tested. The system is based on a MCP that detects the residual gas ionization produced by the ion beam. The detector is coupled to a phosphorous screen for the readout of the vertical and horizontal density profiles. Experimental results have shown that the system is able to detect beam intensities as low as 10 pps w...

This paper presents a hybrid manufacturing process for the preparation of complex cavity structure parts with high surface quality. Firstly, laser precision packaging technology is utilized to accurately connect thin plate substrate microchannel. Secondly, Direct Metal Laser-Sintering (DMLS) completely shape part. The morphology and microstructure encapsulated specimens DMLS molded were investi...

Portable electronic devices such as notebook computers, PDAs, cellular phones, etc., are being widely used, and they increasingly need cheap, efficient, and lightweight power sources. Fuel cells have been proposed as possible power sources to address issues that involve energy production and the environment. In particular, a small type of fuel-cell system is known to be suitable for portable el...

We have developed a novel microchannel plate readout scheme, the cross strip anode. The cross strip anode has a coarse (0.5mm) multilayer metal and ceramic cross strip pattern that encodes event positions by direct sensing of the charge on each strip and subsequent determination of the charge cloud centroid for each event. Event position encoding is accomplished with chip level preamplifiers on...

BACKGROUND Genetic analysis of microsatellite DNA is a powerful tool used in linkage analysis, gene mapping, and clinical diagnosis. To address the expanding needs of studies of short tandem repeats (STRs), we demonstrated high-performance STR analysis on a high-throughput microchannel plate-based platform. METHODS Energy-transfer-cassette-labeled STR amplicons were separated and typed on a m...