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 27 for “"manufacturing parameters"”.
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Part cost computer modeling of job shops as a function of manufacturing parameters
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1990.
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An experimental and analytical exploration of the effects of manufacturing parameters on ceramic pot filter performance
… these three aspects of performance and three manufacturing values: percentage rice husk, rice husk size and wall thickness. These relationships are used to run a series of optimizations that result in design recommendations including the recommendation to increase wall thickness to improve …
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Constraint-based facilities planning
… A model was built to assess the impact of manufacturing parameters on the effectiveness of the layout and the material handling system. A relationship was developed between variations in production oriented parameters and its impact on the facility size and final cost of the product being …
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Optimizing flow rate and bacterial removal performance of ceramic pot filters in Tamale, Ghana
… Water, by investigating the relationship between manufacturing parameters and filter performance. The manufacturing parameters researched in this thesis includes rice husk size and the mixing process, and the performance variables includes flow rate and bacterial removal. Through this research, …
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Fractología industrial del vidrio templado: caracterización y diagnóstico del estado tensional producido durante un tratamiento térmico de templado industrial en vidrio sodocálcico en función de los parámetros de fabricación y esfuerzos externos de uso, a partir del proceso de fractura
… as a raw material, nevertheless the subsequent manufacturing processes are very varied and increasingly complex, therefore more precise specifications have been defined and more effective controls are required. One of the most commonly used glasses is tempered glass, which is subject of a heat …
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Calculation, utilization, and inference of spatial statistics in practical spatio-temporal data
… relationships to performance measures and manufacturing parameters. This work addresses issues in calculation, representation, inference and utilization of spatial statistics under practical considerations to the materials researcher. Modifications are presented to the theory and algorithms …
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Design and Manufacturing of the Filament Collection and Diameter Measurement Systems of Fiber Extrusion Device for Educational Purposes
… on data acquisition, control system, and smart manufacturing, and it allows users to perform experiments, vary manufacturing parameters, change control system, and collect data. There are different variants of FrED based on the price point (low cost to high cost). The existing FrED has issues …
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Optimization of thermoplastic composite manufacturing with digital process intelligence
… toughness, recyclability, and scalable manufacturing. However, the relative nascency of thermoplastic composites and their complex production means optimal manufacturing parameters are not well characterized. Processes are often developed through trial-and-error with limited …
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Design and Manufacturing of Educational Fiber Extrusion Device and Smart Factory
… on data acquisition, control system, and smart manufacturing. It allows learners to perform experiments, vary manufacturing parameters and control system, collect data, and perform analysis. Sucessful classroom activities have been conducted with FrED, however, the prior model is too costly to …
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Low-Cost Fiber Extrusion Device for Educational Purposes: Redesign, Manufacture, and Computer Vision Integration
… data acquisition, control systems, and smart manufacturing. This system enables learners to conduct experiments, manipulate manufacturing parameters and control systems, gather data, and conduct analyses. While successful classroom activities have been conducted using FrED, the preceding …
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Manufacturing and properties of titanium-based materials produced by selective laser melting
… (CP-Ti) parts. Accurate manipulation of SLM parameters is applied to produce nearly fully dense (>99.5%) CP-Ti parts without any posttreatments. Compared with output from traditional technologies, the microhardness, compressive and tensile strengths of SLM-processed CP-Ti parts have been …
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A cost modeling approach using learning curves to study the evolution of technology
… mechanism in all these study was to look at manufacturing cost in an aggregate sense and use the past data to predict the cost walk down in future. In the present work the focus has shifted from looking at cost in an aggregate manner and understanding it more at a manufacturing level using …
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Photo-Curing Behavior and Thermal Properties of Silicone Semi Interpenetrating Polymer Network (Semi-IPN) Organogels
… in the hydrated state, as hydrogels. However, manufacturing and molding processes are mostly carried out in the organically solvated state, as organogels. This thesis investigates the effects of some of the manufacturing parameters such as curing time and thermal processing on thermal, …
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Parametric impact characterisation of a solid sports ball, WITH a view to developing a standard core for the GAA Sliotar
… for all ball types. The contribution of manufacturing conditions to ball performance was investigated by conducting extensive prototyping experiments. Manufacturing parameters of temperature, pressure and material composition were varied to produce a range of balls. Polymer hardness …
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Design and Construction of Smart Structures for Technical Textiles
… the polymer matrix, the yarn structure and the manufacturing method all informed the development of the design paradigm. The resultant design paradigm developed highlights the most significant variables and parameters to take into consideration when designing a textile sensor, and suggests …
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Investigation of selective optical properties of Si/SiO2 nanostructures generated by pulsed laser ablation as-deposited and post-treated
… ablated silicon on glass substrates. Prominent parameters such as laser power, repetition rate, pulse duration, and scanning speed were changed to vary the structural and compositional properties of synthesized nanofibrous thin films. Transmission and specular reflection measurements along with …
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Composition and Manufacturing Effects on Electrical Properties of Li/FeS2 Thermal Battery Cathodes
… of deformation, component composition, and manufacturing conditions on electrical conductivity has not been studied, yet the cathode electrical properties are critically important to battery performance. This thesis presents simulation results from a computer model in combination with …
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FrED Manufacturing - A Study in Affordable Manufacturing to Scale using Desktop Sized Fiber Extrusion Device
FrED (Fiber Extrusion Device) Factory is a manufacturing facility at MIT which educates its students on fundamental and advanced manufacturing principals. The factory produces multiple FrED devices, which are "desktop fiber extrusion systems that mimic continuous fiber draw process for hands-on …
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Microfluidics technology for the formulation design and production of liposomal products
… has been researched as an alternative liposome manufacturing technique to improve batch-to-batch consistency and overall production costs. Whilst previous research has shown microfluidics parameters such as the flow rate ratio (FRR) adopted in the microfluidic process is important, there is a …
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Modeling Material Properties of Natural Fiber-Polymer (Grain Bags) Composites
… trends relating material composition and manufacturing parameters. Polynomial regression models were derived for predicting these properties for various processing conditions. For statistical modelling, fiber fraction (FF in w/o ), matrix strength (MS), matrix modulus (MM), and matrix …
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