Digital Commons Network^™

Inflows And The Restoration Of The Salton Sea, Kevin P. Janik

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Applying The Prediction Of Four-Year Height Growth Of Douglas-Fir And Ponderosa Pine Saplings To An Existing Growth Simulator, Kathryn Arendt Keller

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

The Nature Of Change In Western Montana's Bunchgrass Communities, Pamela G. Sikkink

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Long-Term Persistence Of Isolated Fish Populations In The Alexander Archipelago, Kim Hastings

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Genetic Algorithms Based Economic Dispatch With Application To Coordination Of Nigerian Thermal Power Plants, Ganesh K. Venayagamoorthy, G. A. Bakare, U. O. Aliyu, Y. K. Shu'aibu

Electrical and Computer Engineering Faculty Research & Creative Works

The main focus of this paper is on the application of genetic algorithm (GA) to search for an optimal solution to a realistically formulated economic dispatch (ED) problem. GA is a global search technique based on principles inspired from the genetic and evolution mechanism observed in natural biological systems. A major drawback of the conventional GA (CGA) approach is that it can be time consuming. The micro-GA (µGA) approach has been proposed as a better time efficient alternative for some engineering problems. The effectiveness of CGA and µGA. to solving ED problem is initially verified on an IEEE 3-generating unit, …

A New Microsensor System For Plant Root Zone Monitoring, Chang-Soo Kim, Sandeep Sathyan, D. M. Porterfield

Electrical and Computer Engineering Faculty Research & Creative Works

The objective of this work is to develop a new microsensor system that can monitor dissolved oxygen and hydration environment at the plant root zone. A miniaturized plant growth system is prepared including the root zone layer, either a porous ceramic tube or porous ceramic wafer on which the plant is grown, and an underlying fluidic channel to deliver nutrients and water to the root zone. We demonstrate the feasibility of using a flexible microsensor array for dissolved oxygen detection, and a four-electrode impedance microelectrode for wetness detection on the surface of a porous tube nutrient delivery system. The unique …

An Efficient Method For Supporting Multiple Types Of Services On Smart Server, Chang-Soo Kim, Yu-Hyeon Bak, Seung-Joe Bae, Jin-Mee Kim, Sang-Min Woo, Seung-Hyup Jeon, Won-Jae Lee, Hag-Young Kim

Electrical and Computer Engineering Faculty Research & Creative Works

No abstract provided.

Investigations Of The Kinetics Of Liquid Droplets On Soil Substrates Using A Novel Approach: Contact Ratio, Abdelhafiz “Moh’D Adnan” Herbawi

Theses

In view of young’s equation, in which the contact angle “ϑ” and the liquid surface tension γ_lv are the only measurable parameters, the contact angle has been widely conceived as a thermodynamic quantity. Accordingly “ϑ” has been the main focus of most theoretical and experimental investigations. The rate of change in the contact angle has been commonly used as the relevant parameter of spreading dynamics in spite of difficulties associated with contact angle measurements that are well recognized in the literature. Considering that the velocity of the contact line is the pertinent quantity for spreading, it is therefore reasonable …

"An Investigation Into The Potential Of Immobilized Nitrifies In Wastewater Treatment", Ahmed S. Embaby

Theses

Removal of ammonia from wastewater is one of the problematic issues in wastewater treatment because nitrifies are very slow growing and can be washed out from activated sludge processes. There is a need to use higher advanced techniques to retain biomass. Among these techniques is cell immobilization in appropriate reactor environments. Cell immobilization technology can be approached by various methods, including cell entrapment or biofilms. However, these immobilization techniques are often accompanied by challenges in terms of biomass activity preservation and recovery following the immobilization treatment, reduction of nutrients mass transfer rates, adequate performance under shock situations and preservation of …

Quantitative And Qualitative Assessment Of Groundwater Resources In Al-Khatim Area, Uae, Ahmed Khaled Othman

Theses

The UAE has achieved remarkable progress in transformation from separated small emirates to a modern union country with a high standard of living. The country is however, considered an extreme arid region.

In spite of these harsh conditions, The UAE government has encouraged plantation in towns, villages and country side. This has led to sharp increase in the agricultural sector particularly during the last three decades. As the irrigated land kept increasing, there was a deep concern about the water demand and the impact of agriculture activities on groundwater systems. Al-Khatim area is considered one of the most important agricultural …

Investigation Of Epoxy Resin Spreading On Glass Surfaces, Haneen Nemer Al-Dahdooh

Theses

The spreading of a small epoxy resin droplet (l.5tL) on a glass surface was examined with the objective of developing a new type of hydrophobic polymer coated glass which has the ability to reduce heat gain inside a building. The study covered three main aspects; the spreading kinetics of epoxy resin on a glass surface, the hydophopicity of the developed polymer-coated glass surface, and the reduction of solar radiation of this surface, As wettability and spreading phenomena arc a fundamental prerequisite for coating, the spreading kinetics of different curing agent concentrations (15:200, 18:200, 21:200) of epoxy resin on the glass …

Identification Of Shiga Toxin-Producing Escherichia Coli In The Uae, Khawla Hamad Mohd Al-Areef Al-Dhaheri

Theses

Identification of Shiga Toxin-Producing Escherichia coli in the UAE

By

Khawla Hamad Mohd Al-Areef Al-Dhaheri

Abstract

Various patho-groups of Escherichia coli strains are important causes of diarrheal diseases worldwide. Among these strains Shiga toxin producing isolates are particularly important. They are carried by various animals and upon infection, in humans, they may cause serious bloody diarrhea, and in some cases even life threatening sequels as hemolytic uremic syndrome. However, these infections are often under-diagnosed due to the fact that pathogenic strains do not differ from their nonpathogenic counterparts in characters investigated by standard microbiological techniques. Consequently, they can only be …

Assessment Of The Effect Of Desalination Brine Waste On Marine Water Quality In Ruwais Area: A Numerical Modeling Application, Samer Jouda Al Nahhal

Theses

This thesis aims to investigate the fate and transport of the effluents discharged from

The desalination plant as well other facilities located in the Ruwais Industrial Complex

(RIC) in the United Arab Emirates. These effluents are discharged in to the Ruwais

Coastal marine waters. The effluents from the desalination plant are characterized by

warm water with high salinity, whereas one other effluent is characterized by high n

Nutrient loads. The characterization of the Ruwais environment and such effluents are

Addressed through comprehensive field surveys of the Ruwais costal water over one

Full year.

In order to investigate the impacts of …

Morphological And Physiological Abnormalities In Tissue Culture-Derived Date Palm (Phoenix Dactylifera L.) Plants, Hamad Saif Al-Mazroui

Theses

The UAE attaches great importance to agricultural development with a sound focus on date palms. This special attention is obvious in the ongoing expansion of agricultural resources and investments, the growing number of palm trees, and in the extensive use of modern technologies. Mass cultivation of date palm trees is required to continue according to the country's agricultural plans.

In order to achieve these agricultural expansion of date palm, new techniques of propagation other than traditional techniques (seed and offshoot propagation) are critically required. Tissue culture is a modern and reliable technology being one of the main methods for date …

Wetting Kinetics Of Films Containing Non-Adsorbing Polymers, S. Saritha, Xianzhong Zhang, Partho Neogi

Chemical and Biochemical Engineering Faculty Research & Creative Works

Kinetics of wetting by a polymer solution have been studied theoretically for a film pinned to a slot. The fluid mechanical equations have been solved using a numerical scheme. The role of polymers appears in the disjoining pressure in the model. The spreading kinetics are observed to follow a power law: a power of (1/4) is observed at short times due to the Laplace pressure, and (1/2) at large times under the Hamaker part of the disjoining pressure at very large times and with no equilibration. It is argued and demonstrated that techniques which have low resolutions such as microscopy …

Experimental Populations: Do They Really Work And How Would We Know?, Jessica Anna Anthony

Open Access Master's Theses

In response to the severe decline of the last remnant population of wild Atlantic salmon in the United States, the National Marine Fisheries Service and the U.S. Fish and Wildlife Service listed the Gulf of Maine distinct population segment of Atlantic salmon as endangered on November 17, 2000, pursuant to the Endangered Species Act of 1973 (ESA) as amended.

Other rivers within the Gulf of Maine distinct population segment have suitable salmon habitat, but currently do not support wild populations. These river systems could be potential sites for the reintroduction of a population through the utilization of the riverspecific hatchery …

Interruptions In Workflow For Rns In A Level One Trauma Center, Juliana J. Brixey, David J. Robinson, Zhihua Tang, Todd R. Johnson, Jiajie Zhang, James P. Turley

Faculty, Staff and Student Publications

An understanding of interruptions in healthcare is important for the design, implementation, and evaluation of health information systems and for the management of clinical workflow and medical errors. The purpose of this study is to identify and classify the types of interruptions experienced by Emergency Department(ED) nurses working in a Level One Trauma Center. This was an observational field study of Registered Nurses (RNs) employed in a Level One Trauma Center using the shadowing method. Results of the study indicate that nurses were both recipients and initiators of interruptions. Telephones, pagers, and face-to-face conversations were the most common sources of …

Total Synthesis Of Montiporyne E, Jian Chen

Theses

Montiporyne A-F is a family of new diacetylenic natural products recently isolated from stony coral Montipora sp. Biological study shows that these compounds exhibit bioactivity against certain solid tumor cells. Of particular interest is Montiporyne E, whose molecular structure is comprised of an interesting seven-membered lactam ring and a diacetylenic sidechain, which is a common structural feature among the Montiporyne family members.

An efficient synthesis of Montiporyne E is described in this paper. The seven-membered lactam ring was constructed using a Beckmann rearrangement. The desired natural product was synthesized using a Sonograshira coupling of the seven-membered lactam vinyl triflate with …

Asthma Brochure And Logo For Rochester General Hospital's Camp Bronchopower And Pediatric Associates, Christine Marie Curtiss

Theses

This thesis describes the creation of a lay public educational brochure for Rochester General Hospital, showing asthmatic children how to use a spacer device with a metered dose inhaler. The thesis was created using the author's original artwork and was translated and adapted for a Spanish version. The second part of the thesis describes the revision of the logo for Camp Bronchopower, a children's asthma camp run by Rochester General Hospital.

Evaluation Of Numerical, Analytical, And Experimental Particle Deposition In Simple And Lung Geometries, Pamela M. Snyder

Theses

Particle deposition is utilized to determine exposure limits, design inhaled medications, and study pulmonary disorders that are a result of airborne pathogens. This information can be obtained from analytical equations, experimental studies, empirical relationships, and numerical analysis.

This research utilizes analytical equations, empirical relationships, and experimental data to investigate the accuracy of three Computational Fluid Dynamics (CFD) software packages; Fluent Discrete Phase Model (DPM), Fluent Fine Particle Model (FPM) and CFX. The sedimentation, molecular diffusion and impaction deposition mechanisms are investigated in a straight tube, bifurcating tube, and three generation lung geometry.

Sedimentation is evaluated in the straight tube for …

Experimental And Theoretical Study Of A Uv Disinfection System For Water Treatment, Wei Yang

Theses

An innovative energy saving ultraviolet disinfection reactor has been developed and tested. The technical approach taken is to establish a relationship between the power consumption and the design features of a UV disinfection system, and then determine these design features by minimizing the power consumption function.

The circular-array type (CAT) UV reactor design consists of four short straight UV bulbs located circumferentially outside a quartz tube. A 4 inches diameter prototype was tested with a water flow rate of 1 1 GPM. Experimental results showed that the CAT UV reactor requires 30% less power consumption (9.6W) compared with a commercial …

Effect Of Casting Conditions On The Crystallization And Resulting Morphology In Compatibilized And Uncompatibilized Poly (Ethylene Oxide )-Poly (Vinylidene Fluoride) Blends, Tejas Upasani

Theses

This thesis describes the effect of casting conditions on the crystallization and resulting morphology in compatibilized and uncompatibilized blends of poly(ethylene oxide) and poly (vinylidene fluoride). Two systems based on grades of PVDF were used: Kynar 301, pure PVDF, and Kynar7201, a 80:20 copolymer of PVDF and hexafluoro propylene. Poly (methyl methacrylate) and poly (vinyl acetate) were used as compatibilizers. Acetonitrile and tetrahydrofuran were used as common solvents to prepare the polymer blends. Two casting conditions were employed. In the first, hot polymer solutions were precipitated in cold hexane. In the second, the hot solutions were cast on aluminum pans. …

Development Of Control Algorithm And A Simulation Tool For Self-Assembly Of Microsystems Based On Swarm Technology, Siddharth Mestry

Theses

"Chunxel" Technology is a novel concept of constructing 3-dimensional structures using a group of intelligent, autonomous, and cooperating micro robots. Chunxels are small robotic modules, cubical in shape, which are immersed in a tank containing a viscous fluid. The chunxels are propelled by the electromagnetic forces created by passing direct current through a set of large coils placed on each face of the tank and small coils embedded in the micro device. The chunxels follow a set of rules which mimic a swarm behavior and selfassemble in the liquid to form a 3-D structure. Swarm behavior is a dynamic problem …

Five Year Study Of The Effectiveness Of Safety Incentive Programs Instituted At Bj's Wholesale Club, Peter D. Van Derlyke

Theses

Safety incentive programs have been employed for many years as a means of keeping employee injuries under control. There are many ways incentives can be implemented and little is known about which are the most effective. This thesis project reports on a study conducted over five (5) years at some of BJ's Wholesale Club's highest accident frequency rate locations. Each year several locations with high accident frequency rates were chosen to be on what was called the Safety Task Force. The purpose of this thesis was to determine if safety incentives would aid in the reduction of workplace accidents. This …

Application Of Phenology To Assist In Hyperspectral Species Classification Of A Northern Hardwood Forest, Gretchen Sprehe

Theses

Tree species have unique spectral reflectance patterns that allows them to be both compared to other objects and to other types of trees. Increasing the spectral separation of such images may assist with surveying and forestry inventories. In past studies, most classifications were done with summer leaves, which darken and become very similar shades of green. This study utilized the phenology of trees to investigate how the changing colors of young or senescing leaves may assist in species classification based on aerial images. Images were taken of the Hubbard Brook Experimental Forest, which is mainly dominated by sugar maple (Acer …

The Mother Immaculate, Calvert J. Waller Iii

Theses

Not included.

Effect Of Added C4-Alcohols On The Structure Of Microemulsion Droplets Measured By Small-Angle Neutron Scattering., Elvis A. Zambrano

Theses

The role of C₄-alcohols (n-butanol, 2-butanol and tert-butanol) in four component microemulsions is studied using neutron scattering. These microemulsions are dispersions of nanoscale droplets consisting of a core of water surrounded by a surfactant-stabilized shell. The particles are suspended in an oil (octane) continuum. The addition of a co-surfactant, such as a short-chain alcohol, modifies the droplet size and structure, as well as the rigidity of the surrounding shell. In this work, we investigate water-in-oil microemulsions employing small-angle neutron scattering (SANS) experiments performed at the NIST Center for Neutron Research. Using this technique, it is possible to probe …

Neurodevelopmental Models Of The Heterogeneous Syndrome Of Schizophrenia, Gwen Decelles

Theses

Not included.

Active Barrier Packaging: Extending The Product Life Of Orange Juice Packaged In Gable Top Cartons, Ann Marie Kenback Chuprevich

Theses

Providing a package that can actively participate in prolonging the product shelf life of orange juice adds value, both financially and nutritionally, to the product and to the package. The code date and shelf life of orange juice is in part determined by the ability of the product to maintain the level of vitamin C as stated on the nutritional label. Vitamin C deteriorates in the presence of oxygen; therefore, removal of oxygen from the package will decelerate the process of oxidation thereby diminishing the loss of vitamin C and prolonging the quality of the orange juice. The refrigerated shelf …

Realm Of Possibilities: The Portrayal Of Women In Futuristic Science Fiction Movies, Aru Basu

Theses

This study examines the portrayal of women in 50 science-fiction films produced in the U.S. The method was content analysis and the unit of analysis was the film scene. Presentations of women were analyzed by examining demographic variables and behavioral traits. For a further insight, comparisons have been made between older women (40 years and above) and younger women (below 40 years) and between "human" women and "other" women. This study reveals that there are few differences with previous studies undertaken on portrayal of women. Overall, women in the sciencefiction future have not been portrayed in a significantly different way …