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 110 for “"Design of Experiment"”.
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Design of experiment analysis of high velocity oxy-fuel coating of hydroxyapatite
… cost effectiveness the high velocity oxy-fuel (HVOF) thermal spray process has been widely adopted by many industries. Though there are different types of flame spraying processes, the HVOF thermal spray process utilises only powder as the coating material rather than wire or rod. Carbon-hydrogen …
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Design of experiment analysis of an electronics package lid using finite element analysis
<p>A design of experiment analysis is reported on data from warpage simulations using finite element analysis of a lidded electronics package. Warpage in a lid of an optical electronics package can detrimentally affect the reliability of the package as well as its optical performance. The present …
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Using design of experiments to improve a batch chemical process
… culture technology called Optaflu®. The goal of this project is to improve overall process yield by modifying the upstream process. The focus is on using a batch process to generate a high-density cell culture and then infecting said culture. This thesis presents the approach of using a Design …
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Improved Modeling of Adhesion and Friction in Sub-5 Nm Ultra-Low Flying-Contacting Magnetic Storage Head -Disk Interfaces
In the second part of this study, the flying/contacting dynamics of sub-5 nm HDIs in direct relation to roughness and electrostatic force were investigated using a 2-degree-of-freedom dynamic model, which incorporates the basic elements developed in the first part of this thesis. Then, …
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Capacity planning and change management in an aerospace overhaul cell
Purpose - This thesis analyzes the transformation of the Small Components Cell in Pratt & Whitney's aftermarket division through lean manufacturing techniques. The thesis focuses on use of a labor capacity planning model, implementation of a new cell layout, and queuing theory. The project was 6.5 …
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Analýza hysterezního chování vertikálního nastavování světlometu automobilu
… se zabývá kontakty a třením v konektorech v softwaru Abaqus. Dále je zde popsána tvorba výpočtového modelu. Tento model je dále porovnán s naměřenými hodnotami skutečného světlometu. Byl proveden DOE (Design of Experiment) a tyto výsledky byly zpracovány pomocí regresní a citlivostní analýzy. …
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Adiabatic Air-Water Two Phase Flow Experimental Facilities Design, Construction and Operation
"Experimental studies are conducted to predict the phenomenon(s) and to describe some kind of causation. The design of experiment and the experimental facility is a rigorous method. A well designed, manufactured and operated experimental facility is robust under criticism. Thermal hydraulic …
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Microtribodynamics of Sub-Five Nanometers Flying Head -Disk Interfaces in Magnetic Storage
A unique feature of this work is the incorporation of the interfacial adhesive forces in sub-10 nm flying and contacting HDIs, and the inclusion of realistic surface roughness. Furthermore, a systematic modeling approach was established that includes system independent fundamental interfacial …
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A Taguchi-Based Approach to Tune Bio-Inspired Guidance Systems for Tactical UAVs
This thesis aims to tune the control parameters of a bio-inspired guidance system designed to confer a tactical behavior to unmanned aerial vehicles (UAVs). This bio-inspired guidance system is capable of reducing exposure to threats, while traversing previously uncharted, and potentially hostile …
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A framework of computer-aided short-run SPC planning
The application of SPC can be divided into two phases: planning and implementation. For short-runs, the planning phase is the bottleneck, which entails the formation of part families and determines corresponding data collection requirements. To ensure the homogeneity of the part family members, …
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Multivariable cycle-to-cycle of an injection molding process
… increasing demands on the precision and quality of manufactured parts. Single input-Single output has been studied as the basis of CtC feedback control. In the manufacturing sector, processes consist of many input parameters and critical outputs. Multivariate CtC seeks to extend the findings of …
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Clear, Aqueous Topical Nanomicelle Formulation For Diabetic Macula Edema
The objective of this study was to develop a clear aqueous mixed nanomicellar formulation (NMF) of hydrophobic drugs for diabetic macula edema. The hydrophobic drugs include triamcinolone acetonide (TA), fluocinolonce acetonide (FA) and triamcinolone (T1) were encapsulated with a combination of …
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Analysis of column interconnects for wafer level packages
… joint thermo-mechanical reliability analysis of Copper column (CuC) interconnect for wafer level packages. First, a simulation-based design optimization process was established based on ABAQUS and Minitab. This process integrated finite element simulation, design of experiment and numerical …
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Integrated optimization system for airbag design and modeling by finite element analysis
"The Finite Element Analysis is widely used in design and modeling of airbags in the automotive industry. Because an airbag is a three-dimensional structure capable of undergoing large deformations with non-linear material properties, usually commercial software is used to conduct the analysis. In …
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The Material Separation Process for Recycling End-of-life Li-ion Batteries
End-of-life lithium-ion batteries retired from portable electronics, electric vehicles (EVs), and power grids need to be properly recycled to save rare earth metals and avoid any hazardous threats to the environment. The recycling process of a Lithium-ion Battery Cell/Module includes storage, …
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Application of the latching control on a wave energy converter
… is proposed to determine the optimum dimensions of a control-free point absorber wave energy converter (WEC). The methodology is based on frequency domain simulation of the WEC oscillations and a statistical analysis method called “design of experiment” (DOE). Then, using the preliminary results, …
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A modified technique in RFID networking planning and optimization
… system is acknowledged as a mature technology often deployed in large scale tracking applications. Implementation issues like cost and effectiveness necessitated research on RFID Network Planning (RNP). The solution typically inspired by nature includes the use of Genetic Algorithm (GA), …
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Empirical model-based control for end milling process
The main objective of this research is to develop an empirical model-based control mechanism to maintain a fine surface finish quality by maintaining on-line cutting force values. The proposed model has been developed to present the control model constraints, by varying the machining parameters to …
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Influence of hot melt extrusion processing parameters on the properties of a pharmaceutical formulation
… to produce a solid dispersion matrix. The aim of this dissertation is to evaluate different factors that will affect the pharmaceutical formulation properties that are produced using HME. For HME, there are different variables that will affect the product quality such as processing parameters, …
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Rational Engineering of Expression Level of Multi-Gene Systems encoding Natural Product Biosynthesis in Streptomyces
It has been shown that genomes of bacteria, especially members of the Streptomyces genus, harbor unprecedented numbers of biosynthetic gene clusters (BGCs) potentially encoding novel compounds. However, cloning and controlled expression of these large BGCs in a heterologous host require tedious …
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