Capture efficiency of four chamber designs for measuring ammonia emissions

Automated, low-power chamber system for measuring nitrous oxide emissions.

Continuous measurement of soil NO emissions is needed to constrain NO budget and emission factors. Here, we describe the performance of a low-power Teledyne NO analyzer and automated chamber system, powered by wind and solar, that can continuously measure soil NO emissions. Laboratory testing of the analyzer revealed significant temperature sensitivity, causing zero drift of -10.6 nmol mol °C. ...

Network ‎D‎ata Envelopment Analysis Models For Measuring Efficiency Of a Four-Stage Supply Chain With Returned Outputs‎

In this paper using DEA technique, four-stage DEA model mooted in order to consider the situation in which returned products exist. Returned products are the inputs of the previous sub-processes that need to be reprocessed due to existence of flaws. Here, a supply chain with four stages as supplier, manufacture, distributor, and retailer with intermediate and return products has been considered...

Design and Calibration of Chambers for Measuring Ammonia Emissions from Tie-stall Dairy Barns

Dairy barns are thought to emit large amounts of ammonia, which can have detrimental effects on human health and natural ecosystems. In the U.S., relatively little is known about the processes that affect the rate and magnitude of ammonia emissions from dairy barns. The end of a conventional tie-stall dairy barn was remodeled into four chambers (four animals per chamber) to initially evaluate d...

Capture–recapture sampling designs

Cache designs for energy efficiency

Cuches usually consume a significant amount of energy in modern microprocessors (e.g. superpipelined or superscalar processors). In this paper; we examine contemporary cuche design techniques and provide an analytical model for estimating cache energy consumption. We also present several novel techniques for designing an energy efjiciency cache, which include block buffering, cache subbanking, ...