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Operations Research, Systems Engineering and Industrial Engineering Commons™
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- Keyword
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- Optimization (2)
- Sustainability (2)
- Biofuels (1)
- Biorefining Supply Chains (1)
- Cryogenic Cooling (1)
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- Food Safety Training (1)
- Friction Stir Processing (1)
- HACCP (1)
- HACCP Program Implementation (1)
- Immediate Feedback (1)
- Life Cycle Assessment (1)
- Lignocellulosic Biomass (1)
- Microhardness (1)
- Microstructure (1)
- Orthogonal Machining (1)
- Platform-based product configuration (1)
- Post-training Knowledge Retention (1)
- Process Improvement (1)
- Product family design (1)
- Queuing (1)
- Rework (1)
- Simulation (1)
- Strategic Decision Support Tool (1)
Articles 1 - 5 of 5
Full-Text Articles in Operations Research, Systems Engineering and Industrial Engineering
Mathematical Modeling For Platform-Based Product Configuration Considering Total Life-Cycle Sustainability, Tian Lan
Theses and Dissertations--Mechanical Engineering
Many companies are using platform-based product designs to fulfill the requirements of customers while maintaining low cost. However, research that integrates sustainability into platform-based product design is still limited. Considering sustainability during platform-based design process is a challenge because the total life-cycle from pre-manufacturing, manufacturing and use to post-use stages as well as economic, environmental and societal performance in these stages must be considered. In this research, an approach for quantifying sustainability is introduced and a mathematical model is developed for identifying a more sustainable platform. Data from life-cycle assessment is used to quantify environmental factors; criteria from the Product …
A Multidisciplinary Techno-Economic Decision Support Tool For Validating Long-Term Economic Viability Of Biorefining Processes, Sumesh Sukumara
A Multidisciplinary Techno-Economic Decision Support Tool For Validating Long-Term Economic Viability Of Biorefining Processes, Sumesh Sukumara
Theses and Dissertations--Chemical and Materials Engineering
Increasing demand for energy and transportation fuel has motivated researchers all around the world to explore alternatives for a long-term sustainable source of energy. Biomass is one such renewable resource that can be converted into various marketable products by the process of biorefining. Currently, research is taking strides in developing conversion techniques for producing biofuels from multiple bio-based feedstocks. However, the greatest concern with emerging processes is the long-term viability as a sustainable source of energy. Hence, a framework is required that can incorporate novel and existing processes to validate their economic, environmental and social potential in satisfying present energy …
Evaluating Food Safety Systems Development And Implementation By Quantifying Haccp Training Durability, Marienne A. Anandappa
Evaluating Food Safety Systems Development And Implementation By Quantifying Haccp Training Durability, Marienne A. Anandappa
Theses and Dissertations--Animal and Food Sciences
HACCP-based food safety programs have been widely acclaimed, accepted and implemented as an effective means of managing food safety risks. While HACCP training is a cornerstone of managing HACCP programs, there is little information about the effectiveness of HACCP training and the durability of HACCP knowledge. Findings reveal a link between involvement level in HACCP activities and the accuracy of HACCP knowledge over time. Opportunities for peer training in HACCP, irrespective of overall experience in the food industry provide favorable circumstances for maintaining accuracy of HACCP knowledge. The optimal window for engaging employees in HACCP is directly following the completion …
A Study Of Queuing Theory In Low To High Rework Environments With Process Availability, Adam J. Brown
A Study Of Queuing Theory In Low To High Rework Environments With Process Availability, Adam J. Brown
Theses and Dissertations--Manufacturing Systems Engineering
In manufacturing systems subject to machine and operator resource constraints the effects of rework can be profound. High levels of rework burden the resources unnecessarily and as the utilization of these resources increases the expected queuing time of work in process increases exponentially. Queuing models can help managers to understand and control the effects of rework, but often this tool is overlooked in part because of concerns over accuracy in complex environments and/or the need for limiting assumptions. One aim of this work is to increase understanding of system variables on the accuracy of simple queuing models. A queuing model …
Achieving Ultrafine Grains In Mg Az31b-O Alloy By Cryogenic Friction Stir Processing And Machining, Anwaruddin Mohammed
Achieving Ultrafine Grains In Mg Az31b-O Alloy By Cryogenic Friction Stir Processing And Machining, Anwaruddin Mohammed
Theses and Dissertations--Manufacturing Systems Engineering
This thesis presents results from the application of cryogenic cooling on multiple-pass friction stir processing and the subsequent orthogonal machining on friction stir processed and as-received Mg AZ31B-O disks, and shows their combined effects on microstructure and microhardness values. A simple friction stir tool, a specially designed fixture and liquid nitrogen are used to perform multiple-pass friction stir processing experiments on Mg AZ31B-O alloy. The friction stir processed and as-received sheets are then made into disks for the orthogonal machining experiments. This study analyzes the microhardness, microstructure changes by cryogenic friction stir processing and the effect of machining conditions such …