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Large -Eddy Simulation Of The Effects Of Debris On Tornado Dynamics, Baiyun Gong
Large -Eddy Simulation Of The Effects Of Debris On Tornado Dynamics, Baiyun Gong
Graduate Theses, Dissertations, and Problem Reports
Tornadoes are one of the most intensely violent natural phenomena, which often bring considerable damage. Debris clouds are commonly observed along the tornado path. Studying tornadoes with debris is potentially important for several reasons: particle suspension may dramatically change the structure of the carrier flow; debris clouds represent one of the primary visual signatures of a tornado; large debris loadings can significantly enhance damage potential; differences between air and debris flow can complicate interpretation of Doppler radar measurements of velocity fields.;In earlier work, debris was added to an existing high-resolution LES model using a two-fluid Eulerian-Eulerian approach. The debris cloud …
Express Risk Assessment For The Dispersion Of Aerosols In An Urban Environment Using Probabilistic Implicit Tracking, Steven Lee Rowan
Express Risk Assessment For The Dispersion Of Aerosols In An Urban Environment Using Probabilistic Implicit Tracking, Steven Lee Rowan
Graduate Theses, Dissertations, and Problem Reports
The dispersion or transport of an airborne aerosol, whether the result of pollution or terrorist attack, is a topic of much interest to researchers and governmental officials in the United States. Due to this, there have been numerous efforts to develop accurate aerosol dispersion models utilizing computational fluid dynamics (CFD) and Lagrangian Particle Dynamics (LPD) in order to predict how an aerosol-suspended material will propagate in an urban environment. However, the complexity of these models require significant amounts of computational resources and are not practical for quickly modeling an actual event.;In this study, a stochastic simulation of Probabilistic Implicit Tracking …
The Relationship Between Body Mass Index (Bmi) And Beverage Consumption Among 5th Grade Students In West Virginia, Jill A. Kloss
The Relationship Between Body Mass Index (Bmi) And Beverage Consumption Among 5th Grade Students In West Virginia, Jill A. Kloss
Graduate Theses, Dissertations, and Problem Reports
A large portion of the childhood population in the US is overweight, and beverage consumption may be a contributing factor. A total of 125 students participated in both Healthy Hearts and CARDIAC over two school years. Beverage consumption data from Healthy Hearts and cardiovascular risk factors data (BMI, total cholesterol, HDL, triglycerides, and acanthosis nigricans) from CARDIAC were analyzed. One percent milk was consumed the least and 100% fruit juice was consumed the most. When separated into BMI categories, 69 students were at a healthy weight (BMI85th percentile). Soft drink consumption was significantly different (p=0.02) between the two groups, with …
The Evolving Perception Of Charles Ives And His Music, Hsiang-Chi Liao
The Evolving Perception Of Charles Ives And His Music, Hsiang-Chi Liao
Graduate Theses, Dissertations, and Problem Reports
When Charles Ives's music began to appear in performances and publications in the 1920s, his admirers often regarded him as an American experimentalist who had created radically new kinds of music that was independent from the European musical tradition. This outlook characterized much of what was written on Ives before the 1980s. At that time, a different picture of Ives gradually began to emerge. It argues that in fact, Ives's music owes as much to the European classical tradition as to American vernacular traditions. Scholars began to reconsider Ives's place in music history and stress his debt to the European …
Decision Making Through The Simulation Of Centralized And Decentralized Distribution Storage Systems, Tomasz M. Kosalka
Decision Making Through The Simulation Of Centralized And Decentralized Distribution Storage Systems, Tomasz M. Kosalka
Graduate Theses, Dissertations, and Problem Reports
The design of a Supply Chain network has a great impact on a company's performance. Simulation modeling and optimization techniques were selected to analyze and solve supply chain and distribution storage problems.;The techniques were applied to a decision making process of reconfiguring an existing distribution storage system for a Warehouse Chain Company, and modifying it from centralized to a decentralized one. This research presented a methodology for identifying data needs, building an analytical database, creating simulation models with Arena software, optimizing the models with OptQuest software, and performing sensitivity analysis.;As a result of applying this methodology, it was found that …
Synthesis Of Novel Polycyclic Aromatics And Heteroaromatics Via Cascade Cyclizations Of Enyne-Allenes And Enyne-Isocyanates, Hua Yang
Graduate Theses, Dissertations, and Problem Reports
Studies on the thermal cyclization of enyne-isocyanates led to a new synthetic pathway to synthesize heterocycles. It was found that the enyne-isocyanates underwent predominantly C2--C7 cyclization at high temperature and the cycloaromatization was facilitated by the addition of silyl chloride.;The C2--C6 Schmittel cyclization of benzannulated enyne-allenes can provide efficient synthetic pathway for the polycyclic aromatics. As a result, new synthetic pathways to synthesize the 1,2-bis[5-(11 H-benzo[b]fluorenyl)]benzenes and related compounds were developed by employing the Schmittel cyclization reaction. The nonbonded steric interaction led to the formation of syn-isomers as major products, which hold potential to complex with transition metals to catalyze …