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 51 for “"design efforts"”.
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Toward a Layout-Based Predictor of User Effort Required to Achieve Software System Usability Goals
In order to learn how to operate unfamiliar software systems, users must expend mental and physical energy, which may be objectively and quantitatively measured as effort. This thesis hypothesizes that the amount of effort needed by users to achieve operability goals is intrinsic to aspects of …
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Scaffold Perception, ComPharmacophore Model Development, And Quantitative Structure-Affinity Relationships Of Sigma Site Ligands
… agent for cancerous tissues, among others. Drug design efforts targeting these receptors have been hindered by a lack of structural information of the receptors themselves. Traditional ligand-based approaches have succeeded in generating many compounds with high affinity, and quite a few with …
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An Internet based multimedia infrastructure for collaborative engineering
… has resulted in easier and more economical design efforts among geographically distributed design teams. Most of today's internet based collaborative applications allow people that are geographically dispersed to meet with each other using their computers and work together without actually …
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Supporting Flight Control for UAV-Assisted Wilderness Search and Rescue Through Human Centered Interface Design
… structure. We then discuss preliminary system design efforts for making UAV-enabled search possible and practical. Finally, we present both a carefully controlled experiment and partially structured field trials that illustrate principles for making UAV-assisted search a reality. Our …
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Design and manufacture of a chain driven motor shaft for Formula Electric applications
This document describes the design, manufacture, and testing of a motor shaft assembly that is a subcomponent of the drivetrain system in a Formula Electric racecar. The design covers detailed analysis of the bearing, sprocket, shaft, pins, and spacer created to meet a set of functional …
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Ship hull resistance calculations using CFD methods
… (CFD) codes restricted their use in ship design space exploration. Increases in computational power available to designers, in addition to more efficient codes, have made CFD a valuable tool for early stage ship design and trade studies. In this work an existing physical model (DTMB #5415, …
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An automated framework for power-efficient detection in embedded sensor systems
… and limited battery size. By concentrating our design efforts on the sensors themselves, it is possible to construct embedded systems that achieve their goal(s) while drawing significantly less power. This will increase their lifespan, allowing many more applications to make the transition from …
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The perceived dimensions of jobs: a multidimensional scaling approach
… configuration was not supported. Thus, job design efforts predicated on their model appear premature.
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Characterizing uronate dehydrogenase from P. syringae as a step towards expressing a retro-biosynthetically derived glucaric acid pathway in E. coli
Retro-biosynthesis is a novel pathway design method that integrates biocatalysis (in particular, functional group specificity and reactivity of enzymes) and organic chemistry. Using this method, several novel pathways have been designed in this laboratory for the microbial production of glucaric …
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Performance enhancements to Joint Army/Navy Rotorcraft Analysis and Design (JANRAD) software and Graphical User Interface (GUI)
The Joint Army/Navy Rotorcraft Analysis and Design (JANRAD) computer program was developed at the Naval Postgraduate School to perform performance, stability and control, and rotor dynamics analysis during preliminary helicopter design efforts. This thesis is the continuation of a previous work in …
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The Development of Actuators for the Whole Skin Locomotion Robot
… terms of the constriction forces and functional design limits are established. In addition, a helical spring backbone design is considered and stiffness properties for general helical springs are determined. The contact of spring coils is included in the analysis and a coupled constitutive model …
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Load bearing interface design for a pan-tilt mechanism for severe marine environments
The Naval Research Laboratory (NRL) requested the design of a two-axis gimbal device for the shipboard support of a sensor payload. Previous design efforts presented a low-mass two-axis (pan and tilt) machine. Vibration and shock testing induced failure in the interface between the payload and the …
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Analytic and numerical study of underwater implosion
… pulse, is critical to the safe and efficient design of underwater structures. Hydrostatically-induced implosion of unstiffened metallic cylinders was studied both analytically and numerically. An energy balance approach was used, based on the principle of virtual velocities. Semi-analytic …
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The effect of wing wall geometry and well deck configuration on the stability characteristics of amphibious landing ship dock (LSD) class ships
… decks, present a unique challenge to the Ship Design Team to incorporate maximum troop, cargo and vehicle capacity, along with sufficient well deck size, to facilitate efficient operation of LCAC (Landing Craft Air Cushion) and other amphibious assault craft in support of power projection …
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Development and Characteristics of the Earliest Cross-Neutralizing Antibody Response to HIV-1
… on the HIV Env. Our findings supports vaccine design efforts that aim to elicit multiple antibody specificities.
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A foundation for translating user interaction designs into OSF/Motif-based software
… the user interface. Although one may attempt to design a user interface from a constructional view, it is important to concentrate design efforts in the behavioral domain to improve software usability. User Action Notation (UAN) is a useful technique for representing user interaction designs in …
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Incremental airline schedule design
… the problem of integrating flight schedule design and fleet assignment decisions at airlines. The flight schedule design problem involves selecting and scheduling the set of flight legs that an airline will include in its service network. Fleet assignment involves assigning a particular …
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Modeling the effect of trend information on human failure detection and diagnosis in spacecraft systems
… This task complexity is reflected in the system design, with a corresponding increased demand on comprehensive design efforts. Fundamental to the safety and mission success of these systems is the tradeoffs between human tasking and system tasking, and the resultant human interface. The research …
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Measurements of Flow in Boundary Layer Ingesting Serpentine Inlets
… performance changes in embedded engines. Proper design of embedded engine systems requires understanding of the underlying fluid dynamics that occur within serpentine inlets. A serpentine inlet was tested in a specially designed wind tunnel that simulated boundary layer ingestion in a full-scale …
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Level of Agreement in the Mental Models of Human Factors Practitioners and Systems Engineers Working in Collaborative Teams
… systems do not always work for complex systems. Designing complex systems requires individuals to have knowledge of engineering as well as human performance. To this end, design efforts rely often on multi-disciplinary teams. While any two members of a design team may view the system design …
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