The ratio of controller to total asthma medications can be calculated using 1 or 2 quarters of data; high versus low ratios differentiate patient characteristics. Objective: To investigate differences ...

Analog Devices, Inc., which recently acquired Linear Technology Corporation, announces the LTC7820, a high power fixed ratio charge pump DC/DC controller that eliminates the power inductor in a ...

The Delta II flow-ratio controller measures, divides, and controls user-specified ratios of mixed gas flows to several zones or chambers. It features a 20:1 dynamic ratio control range and faster ...

The automotive industry continues to be a hotbed of innovation, with activity driven by better fuel economy and speed efficiency, and growing importance of technologies such as RCS2 Ratio Control ...

Linear Technology announces the LTC7820, a high power fixed ratio charge pump DC/DC controller that eliminates the power inductor in a non-isolated intermediate bus converter. It enables up to a 50% ...

The Asheville Plant, owned by Progress Energy, consists of four units that produce 700 MW near Arden, North Carolina (Figure 1). Unit 2 is a Babcock & Wilcox front-fired reheat boiler with a maximum ...

A CVT ratio control algorithm is proposed to improve the engine performance by considering the powertrain response lag. In the CVT powertrain, there exists a response lag, which results from the ...

High bandwidth control of the air-fuel ratio is necessary in order to minimize the exhaust emissions of sparkignition engines with three-way catalytic converters. A new approach is to implement a ...