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 236 for “"Deceleration"”.
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Slow Works – Deceleration as Curatorial Paradigm
… its concern for accessibility by proposing deceleration as a new paradigm for curation. A ‘decelerated’ exhibition presents visitors not with foregone conclusions based on theoretical argument but with a structured wealth of contextual material informed by artistic practice and process, …
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Satellite Deceleration Using Gravity Assist from Asteroid
<p>Satellites have used gravity assists to increase their speed when exploring the solar system. This same maneuver can be done but with the objective to slow down the satellites. This has been theorized to slow down asteroids using the moon to capture them in earth’s orbit. My goal is to determine …
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Analysis of acceleration and deceleration during cyclic exercise
… the analysis of the acceleration and the deceleration regions of the cyclic exercise sessions. The objective of this study was to develop an algorithm to quantitatively analyze the acceleration and the deceleration regions of cyclic exercise sessions. The acceleration and the deceleration …
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Numerical simulation of deceleration of an axisymmetric vortex
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1989.
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Fuel burn reduction potential from delayed deceleration approaches
… comes from increasing the use of Delayed Deceleration Approaches where the deceleration to the standard stabilized final approach speed occurs later, which keeps the aircraft in clean aerodynamic configuration with low thrust for as long as possible. Although such approaches can reduce …
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Energy Modeling of Deceleration Strategies for Electric Vehicles
… model to assess regen, coasting, and other deceleration strategies. A road load model based on public test data calculates tractive effort based on speed and acceleration. Bidirectional Willans lines are the basis of the powertrain model simulating battery energy consumption. Regen braking …
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Dynamic cyclic bending, kinetic to strain energy, deceleration systems
Please read the abstract in the section 00front of this document
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Proton deceleration near the surface on an accreting neutron star
… is weaker. This thesis is a study of proton deceleration by multiple Coulomb collisions with electrons in a hot, strongly magnetized plasma. The evolution of the proton velocity-space distribution function is followed by integrating a Fokker-Planck equation numerically. The Fokker-Planck …
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Proton deceleration near the surface of an accreting neutron star
In binary X-ray sources consisting of a neutron star accreting matter from a companion star, X-radiation is produced by the layer of hot, dense plasma that develops where the matter collides with the neutron star surface. The structure of this layer and the spectrum of the radiation produced there …
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Wake deceleration of a racecar multielement airfoil in ground effect
… wake bursting is also referred to as wake deceleration in this study. A steady-state two-dimensional CFD analysis of a racecar multielement airfoil was carried out to study wake deceleration characteristics in ground effect. Simulations were performed using ANSYS Fluent, which is a …
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Continuum modeling of the deceleration transient state in stochastic traffic flow
… a similar form. Solutions for the stopping and deceleration cases are obtained using the second-order Lax-Wendroff scheme and compared to the results obtained from the agent-based simulation. iv
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Deceleration Stage Rayleigh-Taylor Instability Growth in Inertial Confinement Fusion Relevant Configurations
… for investigating RT instability growth in deceleration stage of imploding geometries. Two cases of laser-driven implosion geometry, Cartesian and cylindrical, are used to study late stage deceleration-phase RT instability development on the interior surface of imploding targets. FLASH's …
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The Initiation of Visual Corrections Within The Acceleration and Deceleration Phases of a Movement
… by a group of muscles (peak acceleration and deceleration) and time of activation (time of peak values and duration of the acceleration phase) would differ according to the type of correction initiated. In the present set of experiments subjects modified movements by either extending the …
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Measurement of Driver Preferences and Intervention Responses as Influenced by Adaptive Cruise Control Deceleration Characteristics
… the driver will experience a system-controlled deceleration of the ACC vehicle. An experiment was conducted to evaluate driver preferences for the distance at which the primary deceleration occurs and the level of deceleration that is obtained. Driver intervention was required in one trial and …
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A study of the Rayleigh-Taylor Instability during deceleration in inertial confinement fusion relevant conditions
… the interior surface of ICF capsules, caused by deceleration during the implosion, further emphasises the need to better understand the seed mechanisms for RTI and possible mitigation methods for damping the instability growth. Reducing the growth of RTI during deceleration could preserve the …
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A theoretical and experimental investigation of a deceleration probe for measurement of several properties of a droplet-laden air stream
Thesis (Sc.D.) Massachusetts Institute of Technology. Dept. of Mechanical Engineering, 1955.
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Analysis of right-turn lane length in left-hand traffic countries at signalised intersections of urban roads
… encounters two main geometric features namely, deceleration length and storage length. The literature shows that in routine practice, the deceleration length is generally estimated by using constant deceleration rate. Many researchers consider this assumption for all design speeds unrealistic as …
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Analytic Assessment of Collision Avoidance Systems and Driver Dynamic Performance in Rear-End Crashes and Near-Crashes
… assumptions describing human-response timing and deceleration to determine when an alert should be presented. This dissertation presents an analytic assessment of dynamic function and performance CASs and associated driver performance for preventing automotive rear-end crashes. A method for using …
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Robust Optimal Control of Step Motors by Lead Angle Selection (Incremental Motion)
… controls are developed for acceleration, deceleration, and damping. An algorithm for determining the point between the acceleration and deceleration portions of a move is presented. Motor and load models for dynamic characterization are discussed, along with variable observers and …
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