Providing Location Security In Vehicular Ad Hoc Networks,
2010
Old Dominion University
Providing Location Security In Vehicular Ad Hoc Networks, Gongjun Yan
Computer Science Theses & Dissertations
Location is fundamental information in Vehicular Ad-hoc Networks (VANETs). Almost all VANET applications rely on location information. Therefore it is of importance to ensure location information integrity, meaning that location information is original (from the generator), correct (not bogus or fabricated) and unmodified (value not changed). We present validation mechanisms to provide location integrity for VANETs. In the initial mechanism, we assume that all vehicles are equipped with a radar, a GPS receiver, and a transceiver. Since radar has a limited radar range and transceiver has a limited transmission range, we build network cells as a security unit as well …
Review: 'Storied Independent Automakers: Nash, Hudson, And American Motors',
2010
University of Dayton
Review: 'Storied Independent Automakers: Nash, Hudson, And American Motors', John Alfred Heitmann
History Faculty Publications
Nash, Hudson, and now even American Motors are automobile brands that have largely disappeared from the American memory. Yet, despite riding the twentieth-century economic roller coaster and operating in the shadow of the Big Three, these firms made sustained, significant technological and economic contributions. Charles K. Hyde’s Storied Independent Automakers is the author’s latest foray into the area of automotive business history, following work on the Chrysler Corporation and the Dodge brothers. A professor of History at Wayne State University, Hyde has written a needed critical business history on an important topic that complements the vast amount of “buff” and …
The Role Of Driver Age And Gender In Motor Vehicle Fatal Crashes,
2010
University of Cincinnati - Main Campus
The Role Of Driver Age And Gender In Motor Vehicle Fatal Crashes, Heng Wei, Deogratias Eustace
Civil and Environmental Engineering and Engineering Mechanics Faculty Publications
This study compares the age and gender of at-fault drivers who were involved in fatal crashes and the corresponding driving errors that contributed to these crashes. This comparison provides insights that may help traffic engineers devise countermeasures to lessen the number of these unnecessary deaths. Data from the Fatality Analysis Reporting System (FARS) for the years 2001 through 2003 were used in this study. The analysis included passenger vehicles (automobiles, utility vehicles, minivans, and pickup trucks) involved in either single or two vehicle crashes. The driver responsible in each crash was identified through the driver error variable codes as listed …
Simulation And Thermodynamic Analysis Of Extended Expansion On A Concept Rotary Engine Including Its Effects On Fuel Efficiency,
2010
Florida Institute of Technology
Simulation And Thermodynamic Analysis Of Extended Expansion On A Concept Rotary Engine Including Its Effects On Fuel Efficiency, Denis Allemant Andre, Matthew James Jensen, Gerald Micklow, James Brenner, Helgevon Helldorff
Mechanical and Civil Engineering Faculty Publications
This paper describes a novel method for extended expansion in a rotary combustion engine running ordinary gasoline. The engine consists of a toroidal-shaped piston that rotates around a drum to expand and evacuate the hot gas. There are several problems with today’s internal combustion (IC) engines. Current IC engines do not always have the necessary internal volume to extract the maximum work possible, and since the whole process of compression, combustion, and expansion happen within the same space, excess heat builds up and increases emissions of nitric oxides and nitrogen dioxide. The proposed solution is to redesign the IC engine …
Investigation Of The Machining Of Titanium Components For Lightweight Vehicles,
2010
Clemson University
Investigation Of The Machining Of Titanium Components For Lightweight Vehicles, Laine Mears, Mathew A. Kuttolamadom, Joshua J. Jones, Thomas R. Kurfess, Aditya S. Choragudi
Publications
Due to titanium’s excellent strength-to-weight ratio and high corrosion resistance, titanium and its alloys have great potential to reduce energy usage in vehicles through a reduction in vehicle mass. The mass of a road vehicle is directly related to its energy consumption through inertial requirements and tire rolling resistance losses. However, when considering the manufacture of titanium automotive components, the machinability is poor, thus increasing processing cost through a trade-off between extended cycle time (labor cost) or increased tool wear (tooling cost). This fact has classified titanium as a “difficult-to-machine” material and consequently, titanium has been traditionally used for application …
Fusion Of Imprecise Qualitative Information,
2010
University of New Mexico
Fusion Of Imprecise Qualitative Information, Florentin Smarandache, Xinde Li, Xianzhong Dai, Jean Dezert
Branch Mathematics and Statistics Faculty and Staff Publications
In this paper, we present a new 2-tuple linguistic representation model, i.e. Distribution Function Model (DFM), for combining imprecise qualitative information using fusion rules drawn from Dezert-Smarandache Theory (DSmT) framework. Such new approach allows to preserve the precision and efficiency of the combination of linguistic information in the case of either equidistant or unbalanced label model. Some basic operators on imprecise 2-tuple labels are presented together with their extensions for imprecise 2-tuple labels. We also give simple examples to show how precise and imprecise qualitative information can be combined for reasoning under uncertainty. It is concluded that DSmT can deal …
