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.
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Showing 1 to 20 of 33 for “"Torpedo"”.
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Dynamics of torpedo depth control
Thesis: M.S., Massachusetts Institute of Technology, Department of Mechanical Engineering, 1992
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Firing Point: Patrol Torpedo Boats during World War II
… during World War II. This vessel was the Patrol Torpedo boat. Originally designed to conduct torpedo attacks on enemy surface vessels, the PT boat successfully adapted multiple roles in addition to being a torpedo attack craft. The versatility of the Patrol Torpedo boat during World War II …
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Torpedo: A Fuzzing Framework for Discovering Adversarial Container Workloads
… be very challenging. In this work, we present TORPEDO, a set of modifications to the SYZKALLER fuzzing framework that creates containerized workloads and searches for sequences of system calls that break process isolation boundaries. TORPEDO combines traditional code coverage feedback with …
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Wolves Without Teeth: The German Torpedo Crisis in World War Two
The "Torpedo Crisis," or "Torpedokrise" as referred to by the Germans, is the name given to the period of the first few years during the Second World War during which time the German U-boat arm experienced catastrophic technical malfunctions with their torpedoes. These malfunctions robbed the …
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Análise numérica de cravação de estacas torpedo modeladas por integral de pressões
… extremely soft. To circumvent this problem, torpedo anchor is frequently used to fix the mooring line on seabed. In this context, this paper presents a new numerical approach to represent the soil reaction of torpedo anchor, in a global analysis tool to model its installation procedure, via a …
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Hydrophobic coatings for film boiling based drag reduction on a torpedo model
… feasibility of this concept for application to a torpedo. A torpedo was chosen due to its high speed and reduced emphasis on durability, since it is only used operationally once. A hydrophobic coating was created in the laboratory using a layer-by-layer (LBL) process and its performance was …
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Torpedo Swimrun Cape Town: understanding athletes, evaluation of race rules and assessing predictors of performance of a novel sport
… describe the characteristics and demands of the Torpedo SwimRun Cape 2019 race. The second aim was to determine predictors of race performance, by using entry, result and questionnaire data. Objectives: The first objective was to explore distributions of age (y), sex, 1km pool swimming time …
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Modular Dynamic Modeling and Development of Micro Autonomous Underwater Vehicle: Lancelet
… and hydrodynamic derivatives is derived. A torpedo shaped micro AUV named Lancelet with a novel multi jet drive propulsion system is developed. The mechanical and electronic systems of the Lancelet are designed and implemented. The performance of the designed propulsion systems is tested, …
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Torpedoes and the gun club: the U.S. Navy Bureau of Ordnance in World War II
This thesis examines the shift of torpedo production responsibilities from military to civilian manufacturers as a case study in the use of civilian resources during World War II. The existing structure of the U.S. Navy Bureau of Ordnance failed to produce adequate torpedoes for the first two years …
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Numerical and experimental analysis of initial water impact of an air-dropped REMUS AUV
… water impact types, such as seaplane landings, torpedo drops, and ship slamming. In this study, a numerical model has been constructed to estimate the hydrodynamic impact loads of a REMUS dropped in free-fall from a helicopter in a low hover. Developed by von Alt and associates at Woods Hole …
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Numerical and experimental analysis of initial water impact of an air-dropped REMUS AUV
… water impact types, such as seaplane landings, torpedo drops, and ship slamming. In this study, a numerical model has been constructed to estimate the hydrodynamic impact loads of a REMUS dropped in free-fall from a helicopter in a low hover. Developed by von Alt and associates at Woods Hole …
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A building within a building: a design study for the place where King Street meets the waterfront in historic Alexandria
Building no. 10 of the old Torpedo Factory complex occupies a pivotal position in the redevelopment of the Alexandria waterfront. This design study explored the critical issues surrounding the renovation and re-use of this now vacant warehouse- issues which involved the conceptualization of the …
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A categorical analysis of Weapon System Accuracy Trial (WSAT) data
… degradation to weapons delivery systems like torpedo tubes and ASROC launchers is statistically more significant than the other WSAT test categories. The thesis also recommends new ways to adapt the existing WSAT data base to conduct more informative inspections of existing and new …
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Maneuvering of slender X-fin AUVs with hydrodynamic derivatives informed through CFD
… Lumped Parameter Models (LPM) for two, slender, torpedo shaped, X-fin craft. This process involves the use of CFD to simulate captive maneuvers that are normally performed using test equipment in the field. These captive maneuvers are refereed to as planar motion mechanisms (PMM), and when …
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Your brain on 9 volts : the specter and hype of electrical brain stimulation
… from shocking away headaches with live torpedo fish, to bombarding patients' brains with so much current that their bodies convulse. A more innocuous technology has since emerged: transcranial direct current stimulation, or tDCS. All it takes to build is a small battery, two wires, two …
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Integrating a RESON 7131 forward looking sonar into the REMUS 2500 underwater autonomous vehicle
… of utilizing angled faces on the nose of torpedo-like UUVs. At the time of publication, the author has submitted the proposed FLS nose integration design for review and for hopeful deployment in the summer of 2015.
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Régulation du transcriptome codant et non-codant chez Schizosaccharomyces pombe: facteurs et mécanismes impliqués dans la maturation 3’ des ARNs et la terminaison de la transcription
… d’ADN (terminaison transcriptionnelle de type torpedo). Au contraire, chez Saccharomyces cerevisiae (S. cerevisiae), la majorité des gènes non-codants, incluant les snoRNAs, dépendent plutôt du complexe NNS (Nrd1/Nab3/Sen1) pour la terminaison de leur transcription. Cela dit, il est incertain …
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Attitude control of an underwater vehicle subjected to waves
… of those encountered by a 21 inch diameter, torpedo shaped underwater vehicle operating in coastal waters and sea state 2. Strip theory is used to develop transfer function phase and magnitude between surface water waves and the slender body pitch, heave, and surge forces and moment for the …
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Investigation of Pore Pressures During High-Velocity Impact by a Free Fall Penetrometer
… from FFP testing. Data was collected using the torpedo-shaped FFP BlueDrop during surveys at Herschel Island, YT, Yakutat, AK, Clay Bank, VA, and Yorktown, VA. Additionally, test deployments in the laboratory were performed in kaolin clay. Data analysis was focused on pore pressure measurements …
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