Daily dietary intake data derived from self-reported dietary recall surveys are widely considered inaccurate. In this study, methods were developed for adjusting these dietary recalls to more plausible values. In a simulation model of two National Health and Nutrition Examination Surveys (NHANES), NHANES I and NHANES 2007-2008, a predicted one-third of raw data fell outside a range of physiolog...

A "lab-on-a-chip" system for detecting bacterial pathogens in oral fluid samples is described. The system comprises: (1) an oral fluid sample collector; (2) a disposable, plastic microfluidic cassette ("chip") for sample processing including immunochromatographic assay with a nitrocellulose lateral flow strip; (3) a platform that controls the cassette operation by providing metered quantities o...

We present the design, fabrication and characterization of a novel microvalve realized by combining micro and fine machining techniques. The design is for high flow rates at high pressure difference between inlet and outlet, burst pressure of up to 15 bars, there is no power consumption required for the valve to maintain its position during operation in any intermediate state and the process ga...

E85 is viewed as a potential alternative fuel to decrease fossil CO2 emissions and dependence on crude oil. As for their conventional counterparts, engines powering flex-fuel vehicles deliver optimal performance when the sensitive areas in the intake system are kept clean and free of deposits. Since no standard tests are available for evaluating the tendency of fuels to form intake valve deposi...

The Miller cycle, using an early inlet valve closing, can significantly improve the overall efficiency of a spark ignition engine during partial load operations. shorter intake event minimizes need for throttling air and so reduces pumping losses. This method is known as “dethrottling”. Indeed, use variable lift system makes it possible to combine two different cam profiles in engine, one full ...

Microfluidic-based biochips are soon revolutionizing clinical diagnostics and many biochemical laboratory procedures due to their advantages of automation, cost reduction, portability, and efficiency [18]. Conventional technology depends on the manipulation of continuous liquid flow through microfabricated channels. However, actuation of flow is implemented with external assistance of micro-pum...

In this paper, we develop linear fixed-order (i.e., fulland reduced order) pressure rise feedback dynamic compensators for axial flow compressors with throttle valve actuation. Unlike the nonlinear static controllers proposed in the literature possessing gain at all frequencies, the proposed dynamic compensators explicitly account for compressor performance versus sensor accuracy, compressor pe...

This paper presents the study of Simulation of Electro-Hydraulic Turbine Control (EHTC) Systems in the field of Power Generation in MATLAB Simulink. It discussed the Governing system used in Thermal Power Plant with Electro-Hydraulic controller with its design, construction and advantages where it indicates that EHTC System which protects and controls Governing of Steam turbines. This paper ind...