Digital Commons Network^™

Energy Partisanship, Hari M. Osofsky, Jacqueline Peel

Articles

Whether the topic is the Paris Agreement on climate change, greenhouse gas emissions from power plants, the Keystone XL pipeline, hydraulic fracturing, offshore drilling, or renewable energy, much of the U.S. policy dialogue about energy and climate change is deeply partisan. Republicans and Democrats debate individual issues in vitriolic sound bites that indicate minimal common ground. For example, officials favoring robust action on climate change are charged with engaging in a “War on Coal.” Those opposed are labeled “members of the Flat Earth Society.” Set against these dysfunctional climate and energy politics, how can progress be made? For people who …

Role Of Composition And Structure On The Properties Of Metal/Multifunctional Ceramic Interfaces, Fang Yin Lin, Aleksandr V. Chernatynskiy, Juan Claudio Nino, Jacob L. Jones, Richard G. Hennig, Susan Sinnott

Physics Faculty Research & Creative Works

The formation of intermetallic secondary phases, such as Pt₃Pb, has been observed experimentally at PbTiO₃/Pt and Pb(Zr,Ti)O₃/Pt, or PZT/Pt, interfaces. Density functional theory calculations are used here to calculate the work of adhesion of these interfacial systems with and without the secondary intermetallic phase. The charge density maps of the interfaces reveal the electronic interactions at the interface and the impact of the secondary phase. In addition, Bader charge analysis provides a quantitative assessment of electron transfer from the perovskites to the Pt. Analysis of the band diagrams indicates an increase of the potential …

Analysis Of The Developing States In The Mena Region Seeking Civilian Nuclear Energy, With A Primary Focus On The Kingdom Of Saudi Arabia (Ksa) And The United Arab Emirates (Uae), Thaqal Alhuzaymi, Ayodeji Babatunde Alajo

Nuclear Engineering and Radiation Science Faculty Research & Creative Works

The comprehensive analysis presented here attempts to ana­lyze “newcomer” states in the Middle East and North Africa (MENA), primarily the Kingdom of Saudi Arabia (KSA) and Unit­ed Arab Emirates (UAE), seeking to implement civilian nuclear energy according to their political and economic situations. By investigating their motivations and funding resources for fu­ture nuclear projects, this analysis provides guidance for these states in terms of their nuclear infrastructure and nonprolifera­tion. The overall approach of this analysis relies on the factors for the success of civilian nuclear energy programs identified in experiential studies conducted since the Atoms for Peace speech in 1953.This …

Convective Cooling In A Pool-Type Research Reactor, Susan Sipaun, Shoaib Usman

Nuclear Engineering and Radiation Science Faculty Research & Creative Works

A reactor produces heat arising from fission reactions in the nuclear core. In the Missouri University of Science and Technology research reactor (MSTR), this heat is removed by natural convection where the coolant/moderator is demineralised water. Heat energy is transferred from the core into the coolant, and the heated water eventually evaporates from the open pool surface. A secondary cooling system was installed to actively remove excess heat arising from prolonged reactor operations. The nuclear core consists of uranium silicide aluminium dispersion fuel (U₃Si₂Al) in the form of rectangular plates. Gaps between the plates allow coolant …

Experience Of Using Simulation Technology And Analytics During The Ebola Crisis To Empower Frontline Health Workers And Improve The Integrity Of Public Health Systems, Nicholas Mellor, Hetty Horton, David Luke, Jon Meadows, Arunangsu Chatterjee, Thomas Gale

Peninsula Medical School

No abstract provided.

Sediment Transport And Bedform Dynamics In Rip Currents, Antony Thorpe

School of Biological and Marine Sciences Theses

Simultaneous in-situ measurements of waves, currents, water depth, suspended sediment concentrations and bed profiles were made in a rip channel on Perranporth Beach, Cornwall, UK. Perranporth is a high energy beach (annual offshore Hs = 1.6 m) which is macro-tidal (mean spring range = 6.3 m) and the grain size is medium sand (D50 = 0.28 – 0.34 mm). It can be classified as a low tide bar – rip beach and exhibits a relatively flat inter-tidal zone with pronounced rhythmic low tide bar - rip morphology. Data were collected over two field campaigns, totalling 14 tidal cycles and including …

Forecasting For Control And Environmental Impacts Of Wave Energy Converters, Kieran Monk

School of Biological and Marine Sciences Theses

This work is divided in to two distinct parts. In the first part a model is developed to assess the redistribution of wave energy about an offshore array of overtopping type wave energy converters. The model is based on a classical analytical solution for diffraction about a breakwater which is modified to consider an array of dissipating, reflecting and transmitting breakwater segments, which are used to approximate an overtopping type WEC array. The model is computationally efficient and phase resolving which allows the effect of wave scattering to be investigated for large domains with high resolution irregular wave distributions. It …

The Effects Of Selected Bio-Active Feed Additives On Nile Tilapia (Oreochromis Niloticus) Production And Health, Ayodeji Adeoye

School of Biological and Marine Sciences Theses

Three investigations were conducted to assess the effects of selected bio-active feed additives on tilapia (Oreochromis niloticus) growth performance, feed utilisation, haemato-immunological status, intestinal morphology and microbiology. The first experiment was conducted to evaluate the effects of feeding tilapia semi-practical diets supplemented with exogenous enzymes (phytase, protease or carbohydrase). After six weeks of the dietary supplementation, tilapia fed diets supplemented with exogenous enzymes (phytase and carbohydrase) showed enhanced growth performance and higher microvilli density when compared to the control group. Additionally, the intestinal bacterial community profile of tilapia fed the carbohydrase supplemented diet was significantly altered in contrast to those …

The Environmental, Social And Economic Impacts Of An Artificial Surf Reef - The Uk Experience, Emma Jane Rendle

School of Biological and Marine Sciences Theses

The study presented in this thesis discusses the topic of ASRs through the use of a specific case study constructed at Boscombe, UK. With the main aim to provide an impartial and independent study into the environmental, social and economic impacts of an ASR. The research presented is therefore multidisciplinary in nature, the separate components utilise key techniques from the geophysical, numerical modelling and socio-economic disciplines are combined to present a significant contribution to the knowledge and understanding of ASRs. Whilst previous studies have focused on one of these disciplines, there are no independent detailed studies of a constructed ASR …

A Tale Of Two Layers: Patents, Standardization, And The Internet, Jorge L. Contreras

Denver Law Review

No abstract provided.

Vol. 93, No. 4: Full Issue, Denver Law Review

Denver Law Review

No abstract provided.

Public Perceptions Of Genetically Engineered Nutraceuticals, Kofi Britwum, Amalia Yiannaka

Cornhusker Economics

The 2016 World Food Prize was awarded in October to four scientists for their pioneering work on bio-fortification — a process of enhancing traditional foods with micronutrients, particularly vitamins and minerals, through conventional selective breeding or genetic engineering. Three of the laureates who work in African countries bred and championed the orangefleshed sweet potatoes1. Although not native to the African continent, the orange-fleshed sweet potato is enhanced with beta-carotene to boost vitamin A content and combat vitamin A deficiency, a health challenge in many developing countries.

Efficiency Evaluation Of A Magnetically Driven Multiple Disk Centrifugal Blood Pump, Kayla H. Moody

Theses and Dissertations

Heart failure is expected to ail over 8 million people in America by 2030 leaving many in need of cardiac replacement. To accommodate this large volume of people, ventricular assist devices (VADs) are necessary to provide mechanical circulatory support. Current VADs exhibit issues such as thrombosis and hemolysis caused by large local pressure drops and turbulent flow within the pump. Multiple disk centrifugal pumps (MDCPs) use shearing and centrifugal forces to produce laminar flow patterns and eliminate large pressure drops within the pump which greatly reduce risks that are in current VADs. The MDCP has a shaft drive system (SDS) …

Autonomous Navigation With Obstacle Avoidance For Unmanned Aircraft Systems Using Milp, James A. Devens

Theses and Dissertations

Autonomous coordination among multiple aerial vehicles to ensure a collision free airspace is a critical aspect of today’s airspace. With the rise of Unmanned Aerial Vehicles (UAVs) in the military and commercial sectors, obstacle avoidance in a densely populated airspace is necessary. This thesis investigates finding optimal or near-optimal trajectories in real-time for aircraft in complex airspaces containing a large number of obstacles. The solution for the trajectories is described as a linear program subject to mixed integer constraints, known as a Mixed Integer Linear Program (MILP). The resulting MILP problem is solved in real time using a well-known, public …

Pattern Recognition In Class Imbalanced Datasets, Nahian A. Siddique

Theses and Dissertations

Class imbalanced datasets constitute a significant portion of the machine learning problems of interest, where recog­nizing the ‘rare class’ is the primary objective for most applications. Traditional linear machine learning algorithms are often not effective in recognizing the rare class. In this research work, a specifically optimized feed-forward artificial neural network (ANN) is proposed and developed to train from moderate to highly imbalanced datasets.

The proposed methodology deals with the difficulty in classification task in multiple stages—by optimizing the training dataset, modifying kernel function to generate the gram matrix and optimizing the NN structure. First, the training dataset is extracted …

Evaluation Of Highly Viscous Polymeric Fluids And Recrosslinked Degraded Gel, Danlu Zhang

Masters Theses

”This work presents the evaluations of two products. One can be used for hydraulic fracturing to achieve viscosity stable under high shear rate, and the other is potential to be applied to enhance oil recovery from mature oilfield.

The first experiment is to synthesize and evaluate a new polymeric fracturing fluid that can resist high shear rate of 511^-1 with favorable viscosity. Zirconium crosslinked fracturing fluids are lack of self-healing ability after shearing, and the difficulties still exist in maintaining viscous with lower polymer content exposed to high shearing conditions, therefore, the research is trying to develop a new …

Gravity And Magnetic Investigations Of The North-Eastern Kansas Section Of The Midcontinent Rift System, Ozgun Kamil Sahin

Masters Theses

"The Midcontinent Rift System (MRS) is a major Precambrian magmatic province on the North American continent. It formed when the North American craton began to split apart during the Mesoproterozoic era (1,100 Ma). As a result of the extension and possibly the effects of a rising mantle plume, a thick layer of basalt and numerous reverse and normal faults were formed. The basalt layer is buried below sedimentary formations and makes it difficult for seismic techniques to image. On the other hand, gravity and magnetic methods can be utilized for focused depths, and the basalt layer of the system can …

Structure And Corrosion Behavior Of Sputter Deposited Ce-Al-O Coating On Al 2024-T3 Alloy Substrates, Yuanyuan Liu, Jiamu Huang, James B. Claypool, Matthew J. O'Keefe

Materials Science and Engineering Faculty Research & Creative Works

Deposition of Ce-Al-O coatings on Al 2024-T3 alloy substrates was conducted by magnetron co-sputtering of CeO₂ and Al targets. The incorporation of Al into the CeO₂ film resulted in an amorphous or nanocrystalline structure with binding energy states different from Al, Al₂O₃, and CeO₂. Electrochemical measurements indicated that the amorphous or nanocrystalline Ce-Al-O coating increased the corrosion resistance of bare Al 2024-T3 substrates by more than three orders of magnitude and exhibited a very different cathodic and anodic protective mechanism compared to Al and CeO₂ coated and as-polished Al 2024-T3 samples. …

Friending The Privacy Regulators, William Mcgeveran

Articles

According to conventional wisdom, data privacy regulators in the European Union are unreasonably demanding, while their American counterparts are laughably lax. Many observers further assume that any privacy enforcement without monetary fines or other punishment is an ineffective “slap on the wrist.” This Article demonstrates that both of these assumptions are wrong. It uses the simultaneous 2011 investigation of Facebook’s privacy practices by regulators in the United States and Ireland as a case study. These two agencies reached broadly similar conclusions, and neither imposed a traditional penalty. Instead, they utilized “responsive regulation,” where the government emphasizes less adversarial techniques and …

Naegleria Fowleri Meningoencephalitis Associated With Public Water Supply, Pakistan, 2014, Najia Ghanchi, Erum Khan, Azam Khan, Wali Muhammad, Faisal Riaz Malik, Afia Zafar

Department of Pathology and Laboratory Medicine

No abstract provided.

The Space Between The Notes: Reflections On A Collaborative Student Project On The Work Of Irish Engineer Peter Rice, Jim Roche

Conference papers

Abstract

This paper is a reflection on a collaborative pedagogic process at the Dublin School of Architecture (DSA), Technological University Dublin, on aspects of the work of Irish engineer Peter Rice (1935–92) who, in his short life, combined contemporary tools of computer-analysis and mathematics with a careful sensibility for materials, natural light and structure. He collaborated with many famous architectural practices on what have now become iconic works of architecture such as the Sydney Opera House, the Centre Pompidou, Lloyds of London and Kansai Airport. The collaborative project on his work was undertaken at DSA in the fall semester of …

An Overview Of The Development Of Cement-Based Batteries For The Cathodic Protection Of Embedded Steel In Concrete, Aimee Byrne, Niall Holmes, Brian Norton

Conference papers

This paper presents an overview of the cement-based batteries developed in DIT for use in the cathodic protection of embedded steel in reinforced concrete undergoing chloride-induced corrosion. Cathodic protection delivers an external current (approximately 20mA per m2 of embedded steel) which effectively polarises the internal current generated during corrosion. The batteries developed in DIT comprise of a cement-based electrolyte containing different additives including sand, aggregate, salts, carbon black and plasticiser with protruding anode and cathode metal plates. These batteries produced an initial electrical output of 1.5V and 23mA through a 10 resistor as measured using data acquisition units and a …

Investigating The Role Of Larval Dispersal Models In The Development Of An 'Ecologically Coherent' Network Of Deep Sea Marine Protected Areas, Rebecca E. Ross

School of Biological and Marine Sciences Theses

There is currently worldwide pressure to establish Marine Protected Area (MPA) networks which are self-sustaining and will persistently protect habitats and species. In order for MPA networks to be effective, the species targeted for conservation must be able to disperse between protected areas and maintain a gene-flow necessary for population sustainability and persistence. This warrants new research on how to quantify and map faunal dispersal to ensure that protection will be effective and sustainable. Population genetic methods have merit, with the ability to track parentage and gene flow between areas directly. However the costs, quantity of samples, and time required …

Combined Effects Of Ocean Acidification, Ocean Warming And Oil Spill On Aspects Of Development Of Marine Invertebrates, Maj Arnberg

School of Biological and Marine Sciences Theses

For decades, humans have impacted marine ecosystems in a variety of ways including contamination by pollution, fishing, and physical destruction of habitats. Global change has, and will, lead to alterations in in a number of abiotic factors of our ocean in particular reduced oxygen saturation, salinity changes, elevated temperature (ocean warming or OW) and elevated carbon dioxide (ocean acidification or OA). Now and in the future, OA and OW will operate together with local anthropogenic drivers such as oil pollution. And yet, at present, very little is known about their potential combined interactive effects on physiological performance and tolerance of …

Impacts Of Waterborne Copper And Silver On The Early Life Stage (Els) Of Zebrafish (Danio Rerio): Physiological, Biochemical And Molecular Responses, Sahib Mohammadbakir

School of Biological and Marine Sciences Theses

Toxic metals are major pollutants of the aquatic environment and are able to cause survival impairment of the early life stage of the aquatic organisms. They can affect the osmoregulatory system and electrolyte balance in fishes as well as the expression of genes which are essential in the formation and development of the organs at the early embryonic stages of development. There are a lack of studies concerning the toxic effects of waterborne copper and silver on the osmoregulation, electrolytes balance and expression the genes which are responsible for the formation and development of heart and metal binding proteins in …

Assessment Of A Solid-State Fermentation Product In Contemporary And Lupin-Containing Diets For Commercial Finfish, Peter Hervé A. Bowyer

School of Biological and Marine Sciences Theses

This body of research explores the dietary application of a bioactive, solid-state fermentation (SSF) product in contemporary and lupin-containing diets of Nile tilapia (Oreochromis niltoticus) and rainbow trout (Oncorhynchus mykiss). Consequently, the work provides holistic assessment of the influences of SSF products on animal health and performance; depending upon rearing temperature, nutritional physiologies, feed formulations and extrusion conditions; alongside information on the performance of lupins in aquafeeds. The SSF product (at 0.1 % inclusion) improved growth performance of Nile tilapia fed diets containing lupins. Phosphorous retention appeared higher when the SSF product was included in a yellow lupin (Lupinus luteus) …

Technological Benefits And Potential Of Incorporation Of Probiotic Bacteria And Inulin In Soft Cheese, Emad Jawad

School of Biological and Marine Sciences Theses

There is an increasing consumer demand for dairy products which are safe and free from additives. Microbial starter strains, in combination with other factors, were studied for their contribution to the control of unwanted microbes, and maintaining the quality of soft cheese. The technological and functional characteristics of the starter culture strains Lactococcus lactis subsp. lactis and Lactococcus lactis subsp. cremoris, and probiotic bacterial strains Bifidobacterium animalis subsp. lactis BB12, Lactobacillus acidophilus LA-5 and Lactobacillus casei Shirota were investigated. The tests included the milk fermentation, resistance to salt and heat, bile and acid resistance, and growth at a range of …

Foraging Ecology Of The Campbell Albatross: Individual Specialisation And Fishery Interactions, Lisa Ann Sztukowski

School of Biological and Marine Sciences Theses

Most albatrosses are critically endangered, endangered or vulnerable due to the deleterious impact of fisheries, pollution, introduced species, habitat alteration, and climate change. Foraging behaviour influences many aspects of seabird biology, and a detailed understanding of foraging ecology is required to better predict the impacts of significant changes to the marine environment. Campbell Albatross (Thalassarche impavida) is a threatened endemic, confined to a small number of locations on Campbell Island, New Zealand and was recently split from the closely related Black-browed Albatross (T. melanophrys). We currently lack much basic information on the foraging behaviour of this species, hindering our ability …

Dynamics Of Rip Currents Associated With Groynes — Field Measurements, Modelling And Implications For Beach Safety, Tim Scott, Martin Austin, Gerd Masselink, Paul Russell

School of Biological and Marine Sciences

No abstract provided.

Virtual Reality Visualisation Of A Biologically Realistic Anatomical And Functional Model Of The Tadpole Spinal Cord, Marius Varga, M-H Robert, W Paul, B Roman, L Dan

School of Art, Design and Architecture

No abstract provided.