The use of multi-antenna technology, also referred to as multiple-input multipleoutput (MIMO), has been shown to improve both the achievable data rates and the link reliability in single-cell wireless systems without a need for extra power or bandwidth. The promised gains of MIMO techniques are, however, severely degraded in a multicell environment due to the presence of intercell interference,...

This paper reviews research conducted in the Texas A&M University Flight Simulation Laboratory on intelligent systems for general aviation. Over the last eight years several intelligent cockpit systems and pilot decision-aiding tools have been created and developed for general aviation aircraft, using fix-based flight simulation validation and evaluation. This paper reviews these results, and a...

The aim of this research was to investigate the retention of a bracket equipped with a novel base, the R-system. The design of the bracket base is characterized by concentric grooves. The behaviour of this bracket was compared with a bracket with a conventional mesh base from the same manufacturer. Thirty lower adult bovine incisors were selected and metallic brackets were bonded using the Conc...

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This paper explores design considerations for energy efficiency in lunar habitats. It considers several previous lunar energy studies in regards to energy types and stages of energy requirements. If we are to obtain true sustainability in energy processes, we will need to design according to the principles “exergy”, considering both the first and the second laws of thermodynamics in a holistic ...

In this paper it is attempted to predict the off-design performance of a jet engine. After a review of the governing equations, the off-design performance is investigated by two methods. In the first method, the component characteristic curves of the Gas Turbines are used. In the second method some design point parameters and the reference state conditions are employed. The results obtained by ...

DESIGN OF COMPLEX ENGINEERing systems has increasingly become a collaborative task among teams that are physically, geographically, and temporally separated. The complexity of modern products means that a single designer or design team can no longer manage the complete product development effort. An enterprise that tries to develop products without sufficient expertise in a broad set of discipl...