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 27 for “"Equipment failure"”.
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Equipment Installation Quality Improvement
… associates work alongside Material Handling Equipment (MHE) to move products and packages efficiently within the building. As new FCs are constructed and launched to meet changing fulfillment demands, it is essential for Amazon and its vendors to ensure the highest quality installation and …
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Autonomous data processing and behaviors for adaptive and collaborative underwater sensing
… should be improved. However, due to equipment failure, we were not able to show the benefits of this technique.
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Developing a maintenance management model for service level optimization: a case study in peruvian heavy goods transport SMES
… as low On-Time In Full (OTIF) rates and high equipment failure rates, which significantly impacted service quality. The proposed research integrated Total Productive Maintenance (TPM) principles and Process Management into a unified maintenance model, emphasizing planned and autonomous …
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Applications of risk pooling for the optimization of spare parts with stochastic demand within large scale networks
… that is powered by miles of material handling equipment (MHE) such as conveyor belts. Unfortunately, this reliance on MHE means that failures could cripple an entire FC. The exceptionally high stock-out cost associated with equipment failure means spare parts must always available when …
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Impact of System Impedance on Harmonics Produced by Variable Frequency Drives (VFDs)
… distortion. This increases the likelihood of equipment failure due to harmonics. The full extent of the impact, however, is typically unknown until an extensive harmonic analysis is performed or the system is installed and tested. This thesis evaluates the impact that source impedance has on …
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Innovating for Global Health through Community-Based Participatory Research: Design of Mechanical Suction Machines for Rural Health Clinics in Malawi
… to acquiring, maintaining, and repairing medical equipment, a community-based participatory study was conducted at three clinical settings in southern Malawi. Thirty-six clinical staff participated in surveys and focus groups to provide information on medical device challenges. Results from the …
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Model-Based Grid Modernization Economic Evaluation Framework
… grid investments can also affect response to equipment failures where there are two types of responses to consider -blue-sky day and storm. Storm response and power restoration can be very expensive for electric utilities. The deployment of automated switches can benefit the utility by …
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A probabilistic approach to risk management in mission-critical information technology infrastructure
… management is straightforward. When a system failure mode may cause a very high cost in lives or economic value, risk management becomes a necessity. In its short history, Information Technology (IT) came to be a crucial part and sometimes the platform of business activities for many large …
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A Qualitative Case Study of Programmed Computer-Assisted Instruction in a College Course Delivered Online
… course activity). Barriers encountered included: equipment failure, inadequate software, inadequate teacher preparation, inadequate resources, human error, time inefficiencies, and a lack of spontaneous interaction. Benefits encountered included: entertainment value, learning value, convenience, …
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Prediction of temporal and spatial phytoplankton change in Rutland Water
… suppressed as a result of the destratification equipment which caused high mixed depth (Zm) to euphotic depth (Zeu) ratios. Spring was dominated by diatoms, usually nutrient limited, with the presence or absence of ice-cover influencing the species composition. Colonial greens, including …
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Combination of reliability tools and artificial intelligence in a hybrid condition monitoring framework for ship machinery systems
… ship machinery maintenance can increase equipment failure posing a threat to the environment, affecting performance, having a great impact in terms of business losses by reducing ship availability, increasing downtime and moreover increasing the potential of major accidents occurring and …
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A practical application of simulation for production planning in a flexible pharmaceutical manufacturing environment
… products across roughly 200 pieces of equipment. This manual tool is time intensive to operate, prone to errors, and requires extensive knowledge of the facility. To address this problem, a simulation based model was developed using the software package, SchedulePro". The aim of this …
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An Observational Investigation of On-Duty Critical Care Nurses' Information Behavior in a Nonteaching Community Hospital
… difficult navigation of online systems, equipment failure, unavailable people, social protocols and mistakes caused by multi-tasking people working with multiple complex systems. No formal use was observed of standardized nursing diagnoses, nursing interventions, or nursing outcomes …
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Maintenance optimisation for wind turbines.
… most cost-effective maintenance strategy. Field failure and maintenance data of wind turbines are collected and analysed using two quantitative maintenance optimisation techniques; Modelling System Failures (MSF) and Delay-Time Maintenance Model (DTMM). The MSF permits the evaluation of life-data …
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Exploration of safety climate in Nigeria: a study of organizations in Onne oil and gas free zone
… supervision, and provision of inadequate safety equipment and work materials; job-specific factors such as unsafe mechanical and physical conditions and equipment failure; natural factors such as unfavourable weather or climatic conditions. The findings indicate major internal factors that …
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Developing a framework for robust safety management in Ghana’s upstream oil and gas industry
… by/impact, falls from height/dropped objects and equipment failure. The key findings of the questionnaire surveys indicated that safety climate factors such as safety supervision, management of change, safety empowerment, safety policies, safety rules and procedures, safety behaviour, safety …
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Smart charging strategies for Electric Vehicles utilising non-dispatchable renewable electricity generation
… to accommodate forecast errors and potential equipment failure. Many renewable generation technologies, such as wind and solar photovoltaics, are non-dispatchable and cannot be scheduled to produce electricity on-demand. Successfully utilising these energy sources therefore requires …
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The effectiveness of Vhembe District Municipality in the provision of potable water services at Thohoyandou
… to experience water shortages, infrastructure failures, and irregularities. The System Theory was adopted in the study as it provides a holistic framework for understanding and managing the entire water supply chain as a complex, interconnected system. This study is grounded in the …
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Power Line Communication for Low-Data-Rate Energy Control
… can stress transformers, increasing the risk of equipment failure. Thermostatically-controlled loads (TCLs) – electrical loads that regulate temperature – such as air conditioners and heat pumps are key drivers of demand peaks. Therefore, analogously to the way a good driver is aware of …
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Post-growth spectral tuning of InGaAs/GaAs quantum dot infrared photodetectors
… of military targets and predicting equipment failure. These thermal imaging systems benefit from multicolour photodetectors. For example, some heat-seeking missiles incorporate two-colour HgCdTe arrays to discern target aircraft from decoy flares. Hyperspectral imaging describes the …
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