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 53 for “"manual control"”.
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Manual Control of Higher Order Systems
… operators employ internal models to aid in the control of complex dynamic systems is prevalent in the psychological and manual control literature. Yet empirical evidence and the subsequent analytical representation of such models is scarce.
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Characteristics of simple manual control systems
Thesis (Sc.D.) Massachusetts Institute of Technology. Dept. of Electrical Engineering, 1956.
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Helicopter control : a multi-loop manual control system
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautical Engineering, 1967.
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Topological relations between postural configuration and manual control performance
… during bipedal stance and performance on manual control task. Postural control is influenced by the interaction of the constraints imposed on perceptual motor workspace. The manipulation of any constraints would bring the individual to change the body configuration to maintain stable and …
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Is there an optimal work-load in manual control?
Thesis. 1978. Ph.D. cn--Massachusetts Institute of Technology. Dept. of Mechanical Engineering.
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The Integration of Information Relevant to a Manual Control Task
… and response proximity, subjects performed a manual control task in which discrete information was integrated with the manual control task. Four different display formats were manipulated within subjects and two response configurations were manipulated between groups. It was predicted that: …
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Relative effects of roll and yaw motion cues in manual control.
Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics. Thesis. 1968. M.S.
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The effects of whole-body vibration on performance of a complex manual control task
This thesis investigates continuous manual control performance during exposure to z-axis whole-body vibration at frequencies between 0.5 and 10.0 Hz. The task involved first-order pursuit tracking with a simultaneous discrete target acquisition task. A major aim of the work was to determine the …
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The effect of field-of-view on the manual control of visually simulated aircraft roll
Thesis (M.S.)--Massachusetts Institute of Technology. Dept. of Aeronautics and Astronautics, 1986.
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The Effect of Active and Passive Control on Air Traffic Controller Dynamic Memory
… investigate the effect of automated and passive control on air traffic controller dynamic memory. The study consisted of two experiments, each involving a realistic ATC scenario for radar approach control with a mix of arriving and departing traffic. In Experiment I, the subjects performed manual …
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Variations in Control and Display Gain in a First Control Order Compensatory Manual Tracking Task
… many factors that contribute to the optimal manual control of a system by a human operator (HO). Two such variables include control gain and display gain. Of particular interest to the following experiment is the contribution of these two variables to the manual tracking performance of any HO …
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Enhancement of perception with the application of stochastic vestibular stimulation
… aid to lower vestibular thresholds and improve manual control. We hypothesized that low-level, subsensory bandlimited white noise (±200 - ±700 [mu]A peak, 52 - 182 ±5% [mu]A RMS) passed between surface electrodes located on the mastoid bone behind each ear would enhance perceptual sensitivity to …
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Trust, self-confidence, and operators' adaptation to automation
… of automation to supplant human intervention in controlling complex systems changes the operators' role from that of an active controller (directly involved with the system) to that of a supervisory controller (managing the use of different degrees of automatic and manual control). This research …
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Human perception and control of vehicle roll tilt in hyper-gravity
… which they must maintain accurate perception and control of vehicle orientation for tasks such as landing and docking. To study sensorimotor function in altered gravity, a hyper-gravity test-bed was produced using a centrifuge. Previous experiments have quantified static tilt perception in …
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Augmented Reality Navigation Interfaces Improve Human Performance In End-Effector Controlled Telerobotics
… Degradation in performance is observed when manual control is mediated through remote camera views, resulting in poor end-effector navigation quality and extended task completion times. This thesis explores the application of three-dimensional augmented reality (AR) interfaces specifically …
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Design and evaluation of an achievability contour display for piloted lunar landing
… level and free of hazards, along with a stable, controlled descent to the lunar surface through the use of automated systems and manual control. Spatial disorientation may occur upon reentering a gravitational field after vestibular adaptation to microgravity during lunar transit. The workload …
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Human spatial orientation perceptions during simulated lunar landing
… astronauts are expected to guide a stable and controlled descent to a landing zone that is level and free of hazards by either making landing point (LP) redesignations or taking direct manual control. However, vestibular and visual sensorimotor limitations unique to lunar landing may interfere …
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Utilization of Ultraviolet-Visible Spectroscopy and Rheology for Sludge Characterization and Monitoring
… of sludge treatment processes mainly relies on manual control, which is far from ideal. There is a need for new approaches to optimize the design and operation of sludge treatment processes and wastewater plants. This research aims to identify new tools and methods that can be used for in-line …
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Experiments and a model of pilot system failure detection during simulated Lunar landing
… to detect different system failures in various control modes either with or without motion cues, 2) determine how pilots' visual attention changes in different control modes and just before detecting failures, and 3) create a failure detection model within a closed-loop human-vehicle model. In a …
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