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 56 for “"self-propelled"”.
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Young Infants' Knowledge About Self -Propelled Objects
… can further examine how infants' concept of self-propelled objects relates to young children's concept of animate entities, which would shed light on the origin and development of knowledge about different ontological object kinds.
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Simulations of a self propelled autonomous underwater vehicle
… the hydrodynamic forces and moments acting on a self propelled manoeuvring AUV can be predicted accurately at the initial design stage. The flow around a typical AUV is both turbulent and three dimensional with significant interactions between the hull, propeller and control surfaces. An unsteady …
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Enzymatically active microspheres for self-propelled colloidal engines
… to their potential applications. Most studies on self-propelled colloidal engines have exploited catalytic decomposition of hydrogen peroxide to drive the motor. Since the hydrogen peroxide is caustic, it is not suitable to use in biological applications, encouraging people to develop “greener” …
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Infants' Reasoning About Self-Propelled Objects, Agents, and Animals
… we investigated young infants' concepts of self-propelled object, agent, and animal through three research projects. In Chapter 2, we examined infants' concept of self-propelled object, specifically, whether 5-month-olds expect a self-propelled object to produce changes in its parts. We …
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Infants' reasoning about self-propelled objects, agents, and animals
… we investigated young infants’ concepts of self-propelled object, agent, and animal through three research projects. In Chapter 2, we examined infants’ concept of self-propelled object, specifically, whether 5-month-olds expect a self-propelled object to produce changes in its parts. We …
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Turbulent wake behind slender bodies, including self-propelled configurations
… wakes behind a streamlined drag body, a jet-propelled body, and a propeller-driven body are studied experimentally in a subsonic wind tunnel at a principal nominal free-stream velocity of 206 ft/sec. The wakes produced by the latter two bodies are momentum-less. Mean flow data taken at five …
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Self-propelled rotary tool for turning difficult-to-cut materials
… tools can be classified as either driven or self-propelled. The former is provided rotational motion by an external source while the latter is rotated by the chip flow over the rake face of the tool. A prototype self-propelled rotary tool (SPRT) for hard turning was developed which provides …
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The design of a self-propelled flexible hull undersea vehicle
… experimental approach to designing an efficient, self-propelled underwater vehicle that is modeled after a .681 m long Skipjack Tuna. Analytical models are used to estimate the joint torques required to maintain biological swimming kinematics, to select optimal actuators, and to size the …
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Conceptual design of a 30 ft. self-propelled monoform model
An investigation was directed at determining whether the Submarine Control System Test Vehicle (CSTV), could be used as the underwater hull for the Monoform (a small waterplane area ship). Hydrostatic and static stability considerations formed a basis for obtaining an optimum strut configuration …
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Development, optimization and simulation of hybrid electric heavy duty truck with self-propelled trailer.
… possible. This drivetrain architecture employs a self-propeller trailer so that the tractive effort is divided between the tractor and semi-trailer. The advantages of this configuration are: 1) Enabling the trailer to regenerate the braking energy as well as for the tractor, 2) Improving the …
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From individual to collective motion of self-propelled particles: The role of particle shape, orientational ordering and clustering
Diese Arbeit untersucht das Verhalten von aktiven getriebenen Teilchen, d. h. Teilchen, die sich unter Verbrauch von Energie gerichtet mit einer gegebenen Geschwindigkeit fortbewegen. Solche Teilchen sind per Definition fernab vom thermodynamischen Gleichgewicht und unterliegen daher nicht dem …
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Disseny i implementació d'un robot amb connexió WiFi
In the present work the prototype for a self-propelled embedded system with wireless connectivity has been carried out. The system is designed to receive commands from the Internet.
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Who's got guts? Young infants expect animals to have insides
… detected a violation when an object that was self-propelled and agentive (but not an object that lacked one or both of these properties) was revealed to be hollow. Infants also detected a violation when an object that was self-propelled and furry (but not an object that lacked one or both of …
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Analysis of the wake behind a propeller using the finite element method with a two-equation turbulence model
… successfully solved at two rotational speeds, self-propelled and 100% over-thrusted, using the same two-equation model. And finally, comparisons of the wake behind a propeller were made for the self-propelled conditions of a ducted and nonducted propeller on the same streamlined body.
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Early reasoning about moral obligations and rights
… only novel animates (entities that are both self-propelled and agentive) to be treated fairly; they do not extend this expectation to entities that are only self-propelled or only agentive. Furthermore, infants perceive humans (animates) as having reduced moral rights if they display …
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Wedged Vortex Generator Applications for Marine Vessels
… are discussed, with recommendations for future self-propelled model testing to further explore these effects.
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Mathematical and Computational modelling of soft and active matter
… little is known about the collective motion of self-propelled particles in heterogeneous mediums, especially when noise is added to the system, and when the interaction radius between particles and obstacles is changed. In the presence of moving obstacles, particles exhibited a greater …
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Mathematical model for improved mass flow estimation in the feeder housing of a forage harvester
… field. One way to estimate mass flow rate in a self-propelled forage harvester is to measure the displacement of feed rollers as material enters the machine. In this work, a mathematical model that captures the interaction between the feed rollers and the incoming material was developed to …
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