Yield

Manuscript of poetry2031-01-01T00:00:00

Reflection, Reproduction, and Challenging at the Brooklyn Zen Center: Complexifying Cultural Capital, Gentrification, the Mindfulness Movement, and Scale

This project analyzes the Brooklyn Zen Center as a case study in order to complexify our understandings of cultural capital, gentrification, the modern American mindfulness movement, and geographic scale. Through an analysis focused at the local scale, we see how the Brooklyn Zen Center both reflects/reproduces and challenges the socio-racial-economic tension associated with gentrification and the mindfulness movement. Through an analysis focused at the scale of the individual/interpersonal, we see how cultural capital both reflects/reproduces and challenges the socio-racial-economic tension associated with the mindfulness movement

Warehouse Redesign of Facility Layout, Racking System and Item Classification at Sunrize Tackle, Inc

This report presents the warehouse redesign of Sunrize Tackle Inc\u27s main facility. Located in Santa Barbara, California, Sunrize Tackle is a manufacturer of premium swimbaits and other fishing tackle. They currently face a problem as their product is undergoing an alteration in packaging, and will not fit into the current space available. The objective is to develop an alternative layout and plan for the facility that improves flow of product and employees, reduces inefficiencies in daily operations, and can adapt to fluctuations in demand and sales. The current layout and operations were reviewed, and three major components which affect the majority of processes were identified. The rack formation, rack and shelf type, and classification system were all identified as areas of potential improvement. Alternatives to the current were produced for each area, and then compared against the each other. The best of the options from each category were then used to create two comprehensive alternative layouts to the current situation. Alternative two with horizontal aisles with several cross aisles, customized racks, and an ABC classification system was determined to be the best. This alternative improved the efficiency of operations at a minimum implementation cost of $320, which was calculated to be recouped within a maximum of two years

Hydraulics of East Creek, British Columbia : a headwater stream with high relative roughness

Headwater streams provide important aquatic habitat, link hillslope sediments with lowland systems, and are an extensive and important component of the fluvial system. Headwater streams are characterised by steep gradients, poorly sorted sediments, large roughness elements and often exhibit diverse morphologies, described as step-pool, rapid or riffle-pool. Despite their importance, headwater streams have received relatively little attention compared to lowland systems and analysis has centred on approaches developed lowland rivers assuming hydrostatic pressure distributions and low channel gradients. In order to investigate the applicability of these methods in a small headwater streams, two hydrodynamic models were applied. The 1-dimensional model, HEC-RAS and 2-dimensional model, River 2D were use to characterise the hydraulics of East Creek, British Columbia. Two reaches, one with rifflepool morphology, the other with rapid morphology were studied. Both reaches exhibit high relative roughness. The hydrodynamic models were calibrated to observed water surface data by adjusting the roughness coefficient employed by the model and the results were compared to observed depths and velocities. Two bedload transport formulae were used in conjunction with the models to provide an indirect test of the hydraulic results. Both hydrodynamic models were able to replicate the observed conditions with a reasonable degree of accuracy, although extensive calibration was required, particularly in HEC-RAS and the roughness coefficient incorporated many resistance components (e.g grain roughness, form roughness). Similar results were found in certain areas with River 2D. When applied predicatively, neither model accurately captured the variation in flow resistance and thus calculated results deviated from the observed conditions. It was also found that River 2D was unable to model very low flows were form resistance from large bed material was high. Results of the sediment transport analysis were also poor, but further consideration of both hydrodynamic and bedload transport model resolution may provide more reliable results.Applied Science, Faculty ofCivil Engineering, Department ofGraduat

Applying Levelized Cost of Storage Methodology to Utility-Scale Second-Life Lithium-Ion Battery Energy Storage Systems

The dramatic increase in electric vehicle (EV) sales has led to a rapid increase in deployed lithium-ion battery (LIB) capacity over the last decade. As EV batteries age and are retired from use in vehicles, they will require management. Second-life applications are often proposed as an environmentally and economically preferable management strategy to direct recycling or disposal. In particular, the repurposing of EV LIBs in stationary applications is expected to provide cost-effective solutions for utility-scale energy storage applications. However, the adoption of second-life battery energy storage systems (BESS) has been slow. One barrier to adoption is the lack of meaningful cost estimates of second-life BESS. Thus, this study develops a model for estimating the Levelized Cost of Storage (LCOS) for second-life BESS and develops a harmonized approach to compare second-life BESS and new BESS. This harmonized LCOS methodology predicts second-life BESS costs at 234-278 ($/MWh) for a 15-year project period, costlier than the harmonized results for a new BESS at 211 ($/MWh). Despite having a higher LCOS, the upfront costs for second-life BESS are 64.3-78.9% of new systems' costs. Results for second-life BESS are highly sensitive to assumptions of discount rate, depth of discharge, and module repurposing costs. If deemed environmentally or societally beneficial, policies should stimulate the use of second-life LIBs, such as providing incentives equal to or greater than those available for first life BESS. Further work can explore comparative economics at smaller scales and quantify non-economic benefits of second-life BESS

Applying levelized cost of storage methodology to utility-scale second-life lithium-ion battery energy storage systems

The dramatic increase in electric vehicle (EV) sales has led to a rapid increase in deployed lithium-ion battery (LIB) capacity over the last decade. As EV batteries age and are retired from use in vehicles, they will require management. Second-life applications are often proposed as an environmentally and economically preferable management strategy to direct recycling or disposal. In particular, the repurposing of EV LIBs in stationary applications is expected to provide cost-effective solutions for utility-scale energy storage applications. However, the adoption of second-life battery energy storage systems (BESS) has been slow. One barrier to adoption is the lack of meaningful cost estimates of second-life BESS. Thus, this study develops a model for estimating the Levelized Cost of Storage (LCOS) for second-life BESS and develops a harmonized approach to compare second-life BESS and new BESS. This harmonized LCOS methodology predicts second-life BESS costs at 234-278 ($/MWh) for a 15-year project period, costlier than the harmonized results for a new BESS at 211 ($/MWh). Despite having a higher LCOS, the upfront costs for second-life BESS are 64.3-78.9% of new systems' costs. Results for second-life BESS are highly sensitive to assumptions of discount rate, depth of discharge, and module repurposing costs. If deemed environmentally or societally beneficial, policies should stimulate the use of second-life LIBs, such as providing incentives equal to or greater than those available for first life BESS. Further work can explore comparative economics at smaller scales and quantify non-economic benefits of second-life BESS.View the NCST Project Webpag

Applying Resource Constrained Project Scheduling to Software Development Project

This paper examines a recurrent software development project in which scheduling had become a critical issue. While software development projects are not the most typical of a subset of problems known as resource constrained scheduling problems, this project fits that description well. With the aid of a comprehensive literature search, our team constructed a model that respects the task precedence, allocates scarce to the task and minimizes overall project cost of the software project. Our literature search was also the source of a great deal of possible improvements in our model some of which we were not able to implement due to time considerations. While our model was specifically tailored to satisfy the needs of this project, it is general enough to be useful in many scheduling applications

Hydrogen Fuel Cells

This project explores the issues that arise when high technology products make the transition from technology to innovation. Specifically, the paper focuses on the development and management issues faced in the fuel cell technology industry. Much has been accomplished in the realm of alternative energy sources through nuclear, mechanical, and geological applications but to a lesser extent for fuel cells. The focus of this study is to investigate and comment on the current management techniques and methodologies used in the fuel cell industry as well as discuss potential improvements or new developments which may enhance the efficiency and success of fuel cell development and management