Remote wind measurements with a new microprocessor-based accumulator device

The employment of a unique microprocessor-based accumulator device for remote meteorological measurements is described. The unit was designed for remote application with wind instruments to respond to the need for a very inexpensive survey unit to provide statistical summaries of basic wind data for the wind turbine siting decision process. While it is versatile enough to be used in many other remote measurement scenarios, the device will be described primarily in its application to wind measurements for siting wind energy conversion systems (WECS), otherwise known as wind turbines

Wind prospector's instrument

In the initial evaluation of a prospective wind turbine site, wind measurements must be made at that site. The report describes an inexpensive data collection device consisting of a microprocessor unit that can be used to record such measurements, producing statistical summaries of wind behavior at the site. Prospectors have often used analogous devices to locate deposits of mineral resources; thus, this device is called a wind prospector's instrument

Workshop on Satellite Power Systems (SPS) effects on optical and radio astronomy

The impacts of the SPS on astronomy were concluded to be: increased sky brightness, reducing the effective aperture of terrestrial telescopes; microwave leakage radiation causing erroneous radioastronomical signals; direct overload of radioastronomical receivers at centimeter wavelengths; and unintentional radio emissions associated with massive amounts of microwave power or with the presence of large, warm structures in orbit causing the satellites to appear as individual stationary radio sources; finally, the fixed location of the geostationary satellite orbits would result in fixed regions of the sky being unusable for observations. (GHT

Psycho-Physiological Measures for Assessing Cognitive Load

With a focus on presenting information at the right time, the ubicomp community can benefit greatly from learning the most salient human measures of cognitive load. Cognitive load can be used as a metric to determine when or whether to interrupt a user. In this paper, we collected data from multiple sensors and compared their ability to assess cognitive load. Our focus is on visual perception and cognitive speed-focused tasks that leverage cognitive abilities common in ubicomp applications. We found that across all participants, the electrocardiogram median absolute deviation and median heat flux measurements were the most accurate at distinguishing between low and high levels of cognitive load, providing a classification accuracy of over 80 % when used together. Our contribution is a real-time, objective, and generalizable method for assessing cognitive load in cognitive tasks commonly found in ubicomp systems and situations of divided attention. Author Keywords Cognitive load, divided attention, interruption, psychophysiologica