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 17 of 17 for “"Quality Defects"”.
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Utilizing automated inspection to identify surface quality defects within the automotive body assembly process
… to ensure vehicles are produced with a high-quality surface finish. These inspections occur throughout the vehicle assembly process and are meant to identify surface quality defects as well as determine at which major step in the vehicle assembly process the defect originated. An issue of …
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Reducing the cost of quality (COQ) through increased product reliability and reduced process variability
… millions of dollars each year to prevent product defects from reaching the end customer and to manage those product defects that have escaped to the end customer. The cost of the equipment, labor, and materials to prevent and manage product defects is referred to as Dell's Cost Of Quality (COQ). A …
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A root cause analysis of stock-outs in the pharmaceutical industry
… increasing. PharCo suspected that manufacturing quality defects were a major cause of stock-outs, reducing the production yield and preventing the company from meeting customer demand. To help test this hypothesis and address the stock-out challenge, we reviewed existing research on the subject …
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Error propagation in pattern recognition systems: Impact of quality on fingerprint categorization
<p>The aspect of quality in pattern classification has recently been explored in the context of biometric identification and authentication systems. The results presented in the literature indicate that incorporating information about quality of the input pattern leads to improved classification …
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Towards Zero Defect Manufacturing in Multi-Stage Production Systems
Implementation of quality improvement methods in multi-stage production systems is essential to manage and quickly eliminate manufacturing quality defects. Many companies tend to prioritize production speed rather than overall throughput, and are hypothesized to be below the optimal level of …
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Three-dimensional periodic structures for enhancing light-matter interaction and energy storage
… This thesis focused on additions of functional defects to the 3D networks and studied the enhanced interactions between the embedded defects and the 3D host materials. A method based on epitaxial colloidal opal growth was developed to place fluorescent nanoparticles at specific locations inside …
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Improving quality through partnerships : development of a raw material supplier relationship management program in the biotech industry
… suppliers - the old focus was primarily around quality, cost and lead time; an additional focus is now around reliability and consistency. Suppliers are an integral part of the supply chain for a biotechnology company. To be successful and competitive, biotechnology companies must work …
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The Impact Of Quality Management On The Thermal Performance Of Social Housing In The United Kingdom
… focuses on social housing projects. Construction defects in the domestic sector, especially those occurring in the building fabric, are acknowledged to contribute to the energy performance gap of buildings. Discontinuity of insulation layers, gaps in the vapour/air barriers and thermal bridging …
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Microbial Safety, Shelf Life Stability, Quality Preservation, and Consumer Acceptance of Vacuum-infused, Irradiated Chicken Breast Meat Treated with Natural Plant Extracts and Organic Acids
… in part, to certain irradiation dose-dependent quality characteristic defects associated with irradiated chicken. Irradiation decreases the shelf life of poultry by increasing the rate of lipid oxidation leading to rancid off-flavors and off-odors and causes discoloration of the muscle tissue …
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Relative Expression of Germination Genes SleB, GerAC, and Gpr in Heat Treated Bacillus licheniformis and Bacillus subtilis
… are actually pathogenic, but many others present quality defects, particularly in milk and other dairy products.</p> <p>This study involved the selection and use of primers specific for GerAC, <em>gpr</em>, and <em>SleB</em> genes to evaluate their relative expression and potential for indicators …
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The Effects Of Self-Directed Teams In An Automotive Manufacturing Environment
… rated self-directed work teams affect external quality and customer satisfaction; 7) Does the presence of effectively rated self-directed work teams affect internal engine manufacturing quality; 8) Are Safety LTR, Safety SV, AWOL, Productivity, and Cost statistically significant predictors of …
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Harvest practices cause aberrations in pork quality
… characteristics contribute to variations in pork quality but these characteristics fail to explain the high frequency of two-toning and other pork quality defects routinely occurring in many hog processing facilities. Therefore, we hypothesized harvesting practices, such as scald alter color …
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Sensor-based Characterization and Control of Additive Biomanufacturing Processes
… such as vascularization and innervation, quality Bio-AM is impeded by lack of integrated process monitoring and control strategies. This dissertation aims to address the compelling need to incorporate sensing and control with Bio-AM processes, which are currently open-loop processes and …
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Pre-harvest and postmortem methods of decreasing the incidence and salvaging value of non-conforming beef carcasses
… of dietary magnesium (Mg) supplementation on the quality characteristics of beef cattle subjected to stress-inducing environments. Carcasses in the dark cutter study were divided into three classes; 1/3, 1/2, and full degree of dark cutting (DEGDC). The ultimate pH of individual muscles within the …
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Research on Print Defect Visibility and Evaluation
… print. Therefore, banding is an important print quality issue which has been analyzed and assessed by many researchers. However, little literature has focused on the study of the masking effect of content for this kind of print quality issue. Compared with other image and print quality research, …
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Laser Surface Texturing, Crystallization and Scribing of Thin Films in Solar Cell Applications
… processes which have led to increased scribe quality. Defects formed during scribing such as micro cracks, film delamination, thermal effect and tapered sidewall geometries, however, still keep solar panels from reaching their theoretical efficiencies. In this study, a ns Nd:YAG laser …
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Effects of installing point-of-use filters intended for lead removal on drinking water quality
Defects in the aging drinking water distribution system can lead to elevated concentrations of toxic metals and harmful microorganisms that pose a risk to human health. Premise plumbing systems can be sites of elevated lead concentrations from lead service lines and are favorable environments for …