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The development of products that do not harm the environment is a major concern of manufacturing companies. Market research and statistical methods are used to access consumer preferences and are useful to build in features that encourage the consumer to choose products with sustainable characteristics. This paper presents a research proposal for the initial phase in the development of a household-cleaning...
Accurate localization systems, based on the measurement of the time of flight of a signal between radio devices, also known as real time location systems (RTLS) are becoming increasingly important especially in indoor applications. Due to severe multi path conditions, the largest problem for those RTLS systems is to detect the time of arrival of signals traveling over the direct line of sight path...
Accurate localization systems, based on the measurement of the time of flight of a signal between radio devices, also known as real time location systems (RTLS) are becoming increasingly important especially in indoor applications. Due to severe multi path conditions, the largest problem for those RTLS systems is to detect the time of arrival of signals traveling over the direct line of sight path...
The idea of monitoring atmospheric events using radio waves has been implemented in the past. The concept has also been employed to detect meteors, that is, ionized trails created by meteors. The approach exploits the property of ionized trails to reflect radio waves and the use of bistatic radar and forward scattering. In this paper we present a setup of a data acquisition (DAQ) system based on software...
This paper reports on the latest efforts of the MARIACHI1 program at Stony Brook University, a unique endeavor that detects and studies ultra-high-energy cosmic rays. This is done by using a novel detection technique based on radar-like technology and traditional scintillator ground detectors. Using the phenomena of cosmic rays and meteors as vehicles to motivate research and educational activities,...
We introduce a controlled form of recursion in XQuery, an inflationary fixed point operator, familiar from the context of relational databases. This operator imposes restrictions on the expressible types of recursion, but we show that it is sufficiently versatile to capture a wide range of interesting use cases, including Regular XPath and its core transitive closure operator. While the optimization...
MARIACHI is a unique endeavor that integrates research at the frontier of our knowledge of the universe, with a broad program of training, education, advancement, and mentoring. Its scientific goal is to detect ultra-high-energy cosmic rays whose origin may provide insight into the evolution of the universe. The detection technique is novel and is based on radar-like technology (where signal processing...
Intelligent technologies such as performance support systems and decision aids represent a key aspect of modern sociotechnical systems. When new tools are introduced into the workplace, they represent hypotheses about how cognitive work is expected to change. The tacit hypothesis is that any such change will be for the better, performance will be more efficient, and decisions will be improved - that...
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