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 293 for “"production rate"”.
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787 mid-body job precedence networks for improving production rate
… Boeing's 787 plant, a precedence network was generated which defines the entire build sequence for a mid-body fuselage. This job-level build sequence enables planners to generate optimized and feasible resource-constrained schedules. The network also forms the foundation for a visual control …
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A new extraction technique and production rate estimate for in situ cosmogenic carbon-14 in quartz
… in quartz that yields more precise estimates of production rates than achieved by previously published extraction techniques. The new technique involves resistance heating of samples, and collection of all evolved carbon as CO₂ between 500°C and 1500°C. Our improved technique holds three distinct …
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Measuring impact of CONWIP control on production rate and inventory distribution for a flexible production system through simulation
This research investigates the production output and inventory distribution of a manufacturing system that produces multiple part types on flexible machines while incorporating CONWIP inventory controls. The production machines, which are separated by individual storage areas for each part type, …
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An Investigation of the Means by Which a Worker Achieves a Change in Production Rate in Simple Operator-Paced Assembly Work
Made available in DSpace on 2014-12-05T19:15:54Z (GMT). No. of bitstreams: 1 0023378.pdf: 2420562 bytes, checksum: e32cb50cfef45c5f2b60591079deb29b (MD5) Previous issue date: 1957
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Development of a mathematical model for predicting bio-slurry temperature and subsequent gas production rate for underground brick-built biogas digester using ambient air temperature forecast
… anaerobic digestion technology for biogas production as a strategy to enhance energy supply and poverty eradication in rural communities. Underground, brick, and mortar built fixed dome type digesters are the most deployed small-scale biogas technology in sub-Saharan Africa (SSA) countries …
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Computer simulation and analysis of production line with two unreliable full batch machines and a finite buffer
… of deterministic and exponential models of a production line with full-batch processing and a finite buffer in order to validate the theoretical models already developed, and to gain more insight to the production line behavior through the simulations. The steady-state overall production rate …
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Efficient buffer design algorithms for production line profit maximization
A production line is a manufacturing system where machines are connected in series and separated by buffers. The inclusion of buffers increases the average production rate of the line by limiting the propagation of disruptions, but at the cost of additional capital investment, floor space of the …
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Evaluation of Rope Shovel Operators in Surface Coal Mining Using a Multi-Attribute Decision-Making Model
… do not consider the relationship between production rate and energy consumption. This thesis presents a method for evaluating rope shovel operators using the Multi-Attribute Decision-Making (MADM) model. Data used in this research were collected from an operating surface coal mine in the …
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Experimental investigation of dark fermentation of poplar leaves for biohydrogen production
… research explores the variations of H2 hydrogen production potential of poplar leaves as a substrate for biohydrogen production via dark fermentation, an underexplored area. Through a series of 58 experimental trials, insightful findings were obtained about the hydrogen production process. The …
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Encumbered space and its effect on mine transportation
… for future research. The basic assumption that production is proportional to the product of capacity and velocity is utilized and the concept of derating the maximum theoretical production rate of an underground mining situation to obtain a more realistic estimate of the actual production rate …
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A model of the temporal and spatial distribution of carbon monoxide in the mixed layer
A field experiment demonstrated the presence of a diurnal cycle in the concentration of carbon monoxide ([CO]) in the upper ocean at the BATS site. A series of laboratory experiments and numerical simulations were carried out to assess the diurnal variation in [CO] both at the sea surface and in …
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Alternatives to the gradient in optimal transfer line buffer allocation
… and blocking, and the difference between the production rate upstream and downstream of a buffer. The objective of the new algorithms is to achieve the final production rate of the dual problem faster than the gradient. The decomposition method is used to evaluate the production rates and …
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A Search for the Higgs Boson Produced in Association With Top Quarks in Multilepton Final States at Atlas
… preliminary results of a search for Higgs boson production in association with top quarks in multilepton final states. The search was conducted in the 2012 dataset of proton-proton collisions delivered by the CERN Large Hadron Collider at a center-of-mass energy of 8 TeV and collected by the …
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Reduce cycle time and work in process in a medical device factory : scheduling of needle hub molding machines
… a work-in-process (WIP) limiting control strategy. This project explores the application of this concept to limit WIP and reduce cycle time for the Becton, Dickinson and Company's manufacturing facility in Tuas, Singapore. BD's Eclipse Safety Needle production line is facing increasing …
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The effects of DDGS inclusion on pellet quality and pelleting performance
… index (PDI), electrical energy consumption, production rate, and bulk density served as the response criteria. In Exp. 1, DDGS were substituted on an equal weight basis for corn, with substitution levels of 10%, 20%, 30%, and 40%. The diet was not adjusted to maintain equal nutrient levels …
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Thermal particle production in the early universe
The thesis deals with the production of weakly interacting particles via decay and scattering in the early universe which is in the state of a hot thermal plasma. Already at leading order in the gauge coupling constant multiple rescattering off soft (p ~ gT) gauge bosons has to be included which …
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History matching sensitivity investigations and forecasting for low matrix porosity, permeability and highly fractured carbonate reservoir to optimize oil production in Kurdistan Region
… To obtain higher oil recovery and an optimum oil production, a three dimensional geological model for the reservoir is needed. The reservoir model should be calibrated via the history matching process which makes the model reliable for forecasting and development planning. An investigation has …
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The catalytic conversion of low chain length hydrocarbons to liquid fuels using ion exchange resin
… catalyst is highly active, deactivates at a slow rate and selectively produces mainly dimers. Macropore diffusion resistance strongly influences the overall rate of the reaction. An increase in liquid production rate is obtained with increasing macroporosity, increasing degree of functionalization …
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