Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 594 for “"cruise"”.
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Programmed cruise control
Thesis: M.S., Massachusetts Institute of Technology, Department of Aeronautical Engineering, 1954
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Sustainability and the cruise industry: a triple bottom line assessment of the North American cruise lines
The global cruise industry has experienced an unparalleled growth rate of 2,100% since its primary inception in 1970. Additionally, the North American cruise industry serviced an estimated 13.2 million cruise passengers in 2008. Parallel with the industry’s remarkable size and growth, the industry …
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Production of Filipino Cruise Ship Workers
… maritime school to workers’ experiences on board cruise ships. The production of the worker in the cultural framework of the family home, school, and workplace is explored. Using a qualitative methodology nine students from a merchant marine school in the Philippines were interviewed. Twenty-five …
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Adaptive Cruise Control and Driver Modeling
… One of those new features is Adaptive Cruise Control DACCE, which extends the conventional cruise control system to control of relative speed and distance to other vehicles. In order to design an ACC controller it is suitable to have a model of driver behavior. The approach in the …
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Intelligent Cruise Control System Impact Analysis
Intelligent cruise control (ICC) has the potential to impact both roadway throughput and safety by assisting drivers in maintaining safe headways. This thesis explores this potential through comparisons of ICC to conventional cruise control (CCC) and manual driving. Accordingly, descriptions are …
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Aircraft cruise performance optimization using chattering controls
Aircraft Cruise Performance is examined by using energy-state modelling to investigate fuel-range optimal trajectories. Chattering controls are considered appropriate when the hodograph is non-convex. Classical steady-state cruise, simple chattering-cruise and the extended chattering-cruise models …
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Singular trajectories in airplane cruise-dash optimization
The problem of determining cruise-dash trajectories is examined for the case of time-fuel optimization using a linear combination of time and fuel as the performance index. These trajectories consist of a transient arc followed by a steady-state arc. For cases where the steady-state arc is flown …
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Violence on cruise ships: Α forensic psychiatric perspective
Τα κρουαζιερόπλοια συγκροτούν κινούμενα, κλειστά μικρο-οικοσυστήματα, όπου τα βίαια αδικήματα εγείρουν ιδιότυπες ψυχιατροδικαστικές και αποδεικτικές προκλήσεις. Η παρούσα συστηματική ανασκόπηση στοχεύει στη σύνθεση της γνώσης για την ψυχική κατάσταση στον κρίσιμο χρόνο τέλεσης αδικημάτων εν πλω και …
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Aircraft cruise phase altitude optimization considering contrail avoidance
… optimization to minimize contrail formation. A cruise phase flight profile system model was developed in this research that optimizes for environmental objectives such as contrails, CO₂, and NOx, alongside traditional objectives such as fuelburn and flight time. Using this system model and 11 …
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A decision making framework for cruise ship design
… a new decision making framework for initial cruise ship design. Through review of effectiveness analysis and multi-criteria decision making, a uniform philosophy is created to articulate a framework that would enable a designer to more accurately assess what design alternatives are more …
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Longitudinal axis display requirements for high speed cruise
… linear model is constructed for a high speed cruise flight condition. An examination of the unpiloted aircraft dynamics revealed that the excursions were not due to a poorly handling aircraft. Thus, it is theorized that the excursions are due to pilot vehicle interactions. A classical control …
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Singular-perturbation analysis of climb-cruise-dash optimization
The method of singular-perturbation analysis is applied to the determination of range-fuel-time optimal aircraft trajectories. The problem is shown to break down into three sub-problems which are studied separately. In particular, the inner layer containing the altitude path-angle dynamics is …
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Eco-cooperative adaptive cruise control at multiple signalized intersections
… levels significantly. Eco-cooperative adaptive cruise control (Eco-CACC) systems can improve vehicle energy efficiency using connected vehicle (CV) technology. In this thesis, an Eco-CACC system is proposed to compute a fuel-optimized vehicle trajectory while traversing multiple signalized …
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Cruise-dash optimization applied to an air-breathing missile
… method is shown to lead to the reduced-order "cruise-dash" model, and this model is used in the optimization study. Earlier work in this area is extended by the inclusion of two not heretofore considered limits on the dynamical system. The results of the earlier work are shown to hold …
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Mitigating Pollution from Cruise Ships: Analysing the Environmental Port Index
Cruise ship tourism is a growing econmic industry worldwide that has faced criticism due to its environmental footprint. With the increased number of cruise ships calling Icelandic ports, increased air emissions from port operations need mitigating. The Environmental Port Index (EPI) is a financial …
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A computationally efficient stereo vision algorithm for adaptive cruise control
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1997.
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Platoon modal operations under vehicle autonomous adaptive cruise control model
… presents a theoretical development of adaptive cruise control models and platoon operation logic for Automated Highway Systems in the Advanced Vehicle Control Systems (AVeS). Three control modes, constant speed, emergency and vehicle-following, are defined based on the minimum safe stopping …
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Flight performance testing of ethanol/100LL fuel blends during cruise flight.
Aviation gasoline, 100LL, is the last fuel in the U.S. containing lead. Additionally, the cost of 100LL avgas now averages close to $4.64/gal. This combination will eventually require an operational transition within the general aviation (GA) community. A contract was awarded to the Baylor …
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