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Perspectives For Low-Carbon Electricity Production Until 2030: Lessons Learned From The Comparison Of Local Contexts In Poland And Portugal, Wojciech Budzianowski, Joao Gomes 2015 Wroclaw University of Technology

Perspectives For Low-Carbon Electricity Production Until 2030: Lessons Learned From The Comparison Of Local Contexts In Poland And Portugal, Wojciech Budzianowski, Joao Gomes

Wojciech Budzianowski

This paper compares perspectives for low-carbon electricity production in two EU member states - Poland and Portugal until 2030. Electricity production capacities, carbon emissions of electricity production, and production cost of electricity (COE) of Poland and Portugal are analyzed. The dilemmas of investments into low-carbon electricity production technologies relying on: (i) renewable energy sources (RES), (ii) nuclear fuel, and (iii) fossil fuels integrated with carbon capture and sequestration (CCS) are discussed. Roadmap 2050 recommends about 40% decarbonization of electricity generation by 2030 and 100% by 2050. Based on electricity production mix forecast for 2030 carbon emissions of electricity are estimated at ...


Developing And Testing An Anguilliform Robot Swimming With Theoretically High Hydrodynamic Efficiency, John B. Potts III 2015 University of New Orleans

Developing And Testing An Anguilliform Robot Swimming With Theoretically High Hydrodynamic Efficiency, John B. Potts Iii

University of New Orleans Theses and Dissertations

An anguilliform swimming robot replicating an idealized motion is a complex marine vehicle necessitating both a theoretical and experimental analysis to completely understand its propulsion characteristics. The ideal anguilliform motion within is theorized to produce ``wakeless'' swimming (Vorus, 2011), a reactive swimming technique that produces thrust by accelerations of the added mass in the vicinity of the body. The net circulation for the unsteady motion is theorized to be eliminated.

The robot was designed to replicate the desired, theoretical motion by applying control theory methods. Independent joint control was used due to hardware limitations. The fluid velocity vectors in the ...


Design Of A Solar Tracking System For Improving Solar Photovoltaic Efficiency, Dr. Adel A. Elbaset 2015

Design Of A Solar Tracking System For Improving Solar Photovoltaic Efficiency, Dr. Adel A. Elbaset

Dr. Adel A. Elbaset

The aim of this work is to develop a microcontroll
er-based solar tracking system and assess the value of using
single and dual-axis solar trackers as means for improving the
performance of photovoltaic generation systems. Two
experimental test setups were designed, implemented and
used to collect the evaluation results at a site that is located
at 28° N latitude, 31° E longitude. One of the test setups
included a monocrystalline photovoltaic (PV) panel that is fixed
at a reference inclination angle of 28° with respect to the horizon,
and facing due south. Whereas, the other experimental setup
included an identical ...


Reliability/Economic/Ghg Implications Of Grid-Connected Wind Energy System Based On Genetic Algorithm, Dr. Adel A. Elbaset 2015

Reliability/Economic/Ghg Implications Of Grid-Connected Wind Energy System Based On Genetic Algorithm, Dr. Adel A. Elbaset

Dr. Adel A. Elbaset

Greenhouse gas, economic, and reliability issues are becoming more important for the emerging wind markets worldwide. With the interconnection of wind energy system into the electric grid, the fluctuating nature of the energy produced has a different effect on the overall system reliability/economic and GHG emissions as well as the fluctuating nature of energy produced by grid. Optimum reliability/economic and pollutant emission are multi-objective problem because reliability is conflicting with annual cost and GHG emissions. The reliability index is analyzed using probabilistic concept in order to find loss of load probability and annual customer damage cost. Therefore, this ...


Design And Implementation Of Microcontroller Based Non-Inverting Dc/Dc Buck-Boost Converter, Hamdi Ali Mohamed 2015

Design And Implementation Of Microcontroller Based Non-Inverting Dc/Dc Buck-Boost Converter, Hamdi Ali Mohamed

Dr. Adel A. Elbaset

This paper design a low cost non-inverting DC/DC buck-boost converter to produce constant output voltage with high reliability and simple control manner. The proposed controller is based on closed loop voltage mode control technique with microcontroller (atmega8) to stabilize the output voltage of DC/DC converter. The microcontroller adjusts the duty cycles of the power switches according to the measured output voltage within limited range of the input voltage of DC/DC converter. The proposed DC/DC converter is simulated on Proteus Suite and experimentally implemented in continuous conduction mode (CCM) with unregulated DC input voltage between 8-25Vand 62 ...


The Non Ideality Effect Of Optimizing The P&O Mppt Algorithm For Pv Ac Load Applications, Dr. Adel A. Elbaset 2015

The Non Ideality Effect Of Optimizing The P&O Mppt Algorithm For Pv Ac Load Applications, Dr. Adel A. Elbaset

Dr. Adel A. Elbaset

Maximum power point tracking (MPPT) techniques are used in photovoltaic (PV) systems to maximize the PV array output power by tracking continuously the maximum power point (MPP), which depends on panels' temperature and irradiance conditions. The perturb and observe (P&O) MPPT algorithm is the most commonly used method due to its ease of implementation. However, it has some drawbacks such as the oscillation of the operating point around the MPP at steady state, which raises the waste of some amount of available energy. In addition, the P&O algorithm can be confused by rapidly changing atmospheric conditions. In this ...


Using Basic Quality Tools To Improve Production Yields And Product Quality In Manufacturing, Steve E. Black 2015 East Tennessee State University

Using Basic Quality Tools To Improve Production Yields And Product Quality In Manufacturing, Steve E. Black

Electronic Theses and Dissertations

As the U.S. and world economies emerge from years of recession, the hardwood flooring market is currently enjoying strong growth. With this growth come new challenges for hardwood flooring manufacturers. Strong competition from foreign markets and rising log prices are reducing product margins and forcing companies to think lean, while improving product quality.

QEP Wood Flooring division, who struggled through the worst of the U.S. economic down turn is now regaining ground as a strong competitor in the hardwood flooring market. This turnaround is due to internal changes to decrease waste and increase product quality. This is accomplished ...


Background Differences In Baseline And Stimulated Mmp Levels Influence Abdominal Aortic Aneurysm Susceptibility, Matthew A. Dale, Melissa K. Suh, Shijia Zhao, Trevor Meisinger, Linxia Gu, Vicki J. Swier, Devendra K. Agrawal, Timothy Greiner, Jeffrey S. Carson, B. Timothy Baxter, Wanfen Xiong 2015 University of Nebraska Medical Center

Background Differences In Baseline And Stimulated Mmp Levels Influence Abdominal Aortic Aneurysm Susceptibility, Matthew A. Dale, Melissa K. Suh, Shijia Zhao, Trevor Meisinger, Linxia Gu, Vicki J. Swier, Devendra K. Agrawal, Timothy Greiner, Jeffrey S. Carson, B. Timothy Baxter, Wanfen Xiong

Mechanical & Materials Engineering Faculty Publications

Objective: Evidence has demonstrated profound influence of genetic background on cardiovascular phenotypes. Murine models in Marfan syndrome (MFS) have shown that genetic background-related variations affect thoracic aortic aneurysm formation, rupture, and lifespan of mice. MFS mice with C57Bl/6 genetic background are less susceptible to aneurysm formation compared to the 129/SvEv genetic background. In this study, we hypothesize that susceptibility to abdominal aortic aneurysm (AAA) will be increased in 129/SvEv mice versus C57Bl/6 mice. We tested this hypothesis by assessing differences in aneurysm size, tissue properties, immune response, and MMP expression.

Methods: Mice of C57Bl/6 or ...


Dividing And Conquering Meshes Within The Nist Fire Dynamics Simulator (Fds) On Multicore Computing Systems, Donald Charles Collins 2015 University of Tennessee - Knoxville

Dividing And Conquering Meshes Within The Nist Fire Dynamics Simulator (Fds) On Multicore Computing Systems, Donald Charles Collins

Masters Theses

The National Institute for Standards and Technology (NIST) Fire Dynamics Simulator (FDS) provides a computational fluid dynamics model of a fire, which can be visualized by using NIST Smokeview (SMV). Users must create a configuration file (*.fds) that describes the environment and other characteristics of the fire scene so that the FDS software can produce the output file (*.smv) needed for visualization.The processing can be computationally intensive, often taking between several minutes and several hours to complete. In many cases, a user will create a file that is not optimized for a multicore computing system. By dividing meshes within ...


A Comparative Study Between The Karst Of Hoa Quang, Cao Bang Province, Vietnam And Tuscumbia Alabama, U.S.A., Gheorghe M. Ponta, Nguyen Xuan Nam, Florentin Stoiciu, Ferenc L. Forray, Viorel Badalita, Lenuta J. Enache, Ioan A. Tudor 2015 Geological Survey of Alabama

A Comparative Study Between The Karst Of Hoa Quang, Cao Bang Province, Vietnam And Tuscumbia Alabama, U.S.A., Gheorghe M. Ponta, Nguyen Xuan Nam, Florentin Stoiciu, Ferenc L. Forray, Viorel Badalita, Lenuta J. Enache, Ioan A. Tudor

Sinkhole Conference 2015

Some of the most beautiful karst features created by the dissolution of limestones are residual hills with steep or vertical sides rising from a flat plain, known as tower karst. Tower karst to be developed requires a “mean annual temperature of minimum 170C to 180C and 1,000 to 1, 200 mm/m2 of annual rainfall (Jakucs, 1977). Two sites matching this criteria were selected: the karst of Hoa Quang District, Cao Bang Province, Vietnam, and Tuscumbia, Colbert County, Alabama, U.S.A. Preliminary observations regarding similarities and differences between these two sites are presented in this paper. The Hoa ...


Concepts For Geotechnical Investigation In Karst, Joseph A. Fischer Dr., Joseph J. Fischer Mr. 2015 Geoscience Services

Concepts For Geotechnical Investigation In Karst, Joseph A. Fischer Dr., Joseph J. Fischer Mr.

Sinkhole Conference 2015

There seems to be a lack of recognition in the literature that addresses the variety of karst in the United States of America and some of its offshore territories. For example, there are the well-known solutioned carbonates of Florida and the Caribbean, but there are also the somewhat older, harder carbonates of St. Croix, U.S.V.I. Even Florida’s recently deposited karst varies from region to region. There are also the ancient, flat-lying carbonates of the interior craton that often have semi-horizontal cavities resulting from variations in ground water levels affecting bedding and the contorted rocks of the ...


Influence Of Biofield Treatment On Physical And Structural Characteristics Of Barium Oxide And Zinc Sulfide, Mahendra Trivedi 2015 Selected Works

Influence Of Biofield Treatment On Physical And Structural Characteristics Of Barium Oxide And Zinc Sulfide, Mahendra Trivedi

Mahendra Kumar Trivedi

Barium oxide (BaO) and zinc sulfide (ZnS) are well known for their applications in electrical, optical and chemical industries. The present study was aimed to evaluate the impact of biofield treatment on the structural and physical properties of BaO and ZnS powder. The study was carried out in two groups, one was set to control, and another group was subjected to Mr. Trivedi’s biofield treatment. Control and treated samples of BaO and ZnS were analyzed using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), and surface area analyzer. XRD data showed that lattice parameter and unit cell volume of ...


Developing An Optimal Model For Infant Home Visitation, Isaac Atuahene 2015 University of Tennessee - Knoxville

Developing An Optimal Model For Infant Home Visitation, Isaac Atuahene

Doctoral Dissertations

The United States, Great Britain, Denmark, Canada and many other countries have accepted home visitation (HV) as a promising strategy for interventions for infants after births and for their mothers. Prior HV studies have focused on theoretical foundations, evaluations of programs, cost/benefit analysis and cost estimation by using hospital/payer/insurance data to prove its effectiveness and high cost. As governments and private organizations continue to fund HVs, it is an opportune time to develop and formulate operations research (OR) models of HV coverage, quality and cost so they might be used in program implementation as done for adult ...


A Concept Validation Of A Magnetometry-Based Technology For Detecting Concealed Weapons In Vehicle Door Panels, Nar Vang 2015 California Polytechnic State University - San Luis Obispo

A Concept Validation Of A Magnetometry-Based Technology For Detecting Concealed Weapons In Vehicle Door Panels, Nar Vang

Master's Theses and Project Reports

Acts of insurgency have become an increasing threat resulting in extensive measures being taken by the law enforcement authorities to mitigate their devastating effects on human life and infrastructure. This thesis introduces a magnetometry-based information, and signal processing methodology for detecting concealed ferrous objects in vehicle body panels. From extensive literature research, it was observed that while magnetic sensors have been used in a variety of related applications, but they have not been extensively applied to the on-road detection of firearms and explosives concealed in vehicles. This study utilized an extensive experimental protocol for preliminary concept validation. The main idea ...


Role Of Information On Probability Of Traffic Conflict On The Onset Of Yellow, Nathaniel Burnett, Anuj Sharma 2015 University of Nebraska - Lincoln

Role Of Information On Probability Of Traffic Conflict On The Onset Of Yellow, Nathaniel Burnett, Anuj Sharma

Anuj Sharma

This paper examines the effect of information provided to drivers through advance warning flashers (AWFs) on driver’s probability of conflict at the onset of yellow at a high-speed intersection. AWFs are specifically designed to minimize the number of vehicles trapped in their respective dilemma zones at the onset of yellow. A probit modeling technique was used to establish dilemma zone boundaries. Based on the dilemma zone boundaries probability of a perceived conflict curves was computed and compared against actual conflicts observed at each of the studied intersections. The comparison between the actual and theoretical probability of conflict curves generated ...


A Simple Method For Estimation Of Queue Length, S. Anusha, Lelitha Vanajakshi, Anuj Sharma 2015 Inidan Institute of Technology, Madras

A Simple Method For Estimation Of Queue Length, S. Anusha, Lelitha Vanajakshi, Anuj Sharma

Anuj Sharma

Urban arterials are characterized by frequent intersections. Queue length and delay are the two primary measures of performance of intersection. These measures play a primary role in determining the arterial performance. This article presents a methodology to determine the number of vehicles in queue at a signalized intersection for under saturated traffic conditions. The results obtained were validated using actual values that are manually extracted. The root-mean-square error is of the range 1.3 vehicles for estimation of number of vehicles in queue. The various aspects that have to be considered in accurate estimation of performance measures are also discussed.


Economic Analysis Of Using Renewable Wind Power System At A Signalized Intersection, Mo Zhao, Anuj Sharma, Dave Bernt, Joshua Meyer, Benjamin Dickey, Scott Rosenbaugh, Elizabeth Jones, Laurence Rilett 2015 University of Nebraska - Lincoln

Economic Analysis Of Using Renewable Wind Power System At A Signalized Intersection, Mo Zhao, Anuj Sharma, Dave Bernt, Joshua Meyer, Benjamin Dickey, Scott Rosenbaugh, Elizabeth Jones, Laurence Rilett

Anuj Sharma

The transportation industry consumes about 28% of the total energy consumed by all sectors in the United States. This paper proposes a renewable wind power system (RWPS) as an alternative power source for signalized traffic intersections. The proposed system can be mounted onto the existing transportation infrastructure to provide reliable green electricity. Large-scale implementation of such a system has the potential to dramatically change the role of the public right-of-way system from an energy consumer to an energy producer, which will reduce the transportation system operating costs and promote the development of greener roadways. This paper provides a framework to ...


Thermal Energy Storage In Building Integrated Thermal Systems: A Review. Part 2. Integration As Passive System, Dervilla Niall, Sarah McCormack, Philip Griffiths, Luisa Cabeza, Lidia Navarro, Albert Castell, Alvaro de Grazia, Maria Brown 2015 Dublin Institute of Technology

Thermal Energy Storage In Building Integrated Thermal Systems: A Review. Part 2. Integration As Passive System, Dervilla Niall, Sarah Mccormack, Philip Griffiths, Luisa Cabeza, Lidia Navarro, Albert Castell, Alvaro De Grazia, Maria Brown

Articles

Energy consumption trends in residential and commercial buildings show a significant increase in recent decades. One of the key points for reducing energy consumption in buildings is to decrease the energy demand. Buildings envelopes are not just a structure they also provide protection from outdoor weather conditions always taking into account the local climate. Thermal energy storage has been used and applied to the building structure by taking advantage of sensible heat storage of materials with high thermal mass. But in recent years, researchers have focused their studies on the implementation of latent heat storage materials that if well incorporated ...


Investigation On The Soundscape Preference And Perception Of Highlands Environment: A Preliminary Study, Nazli Che Din, Engku Mastura Engku Ahmad, Hazreena Hussein 2015 Universiti Malaya

Investigation On The Soundscape Preference And Perception Of Highlands Environment: A Preliminary Study, Nazli Che Din, Engku Mastura Engku Ahmad, Hazreena Hussein

Hazreena Hussein

Highland environment is one of the popular tourist destinations because it holds a rich array of natural resources. However, the economic and development growth of highlands gave potential effect of biological wealth and environment surrounding. Noise pollution in developing highland area could intrude the ability to comprehend of natural and environmental sounds. As preliminary, the main objective of this research is to identify factors and elements that characterise the soundscape in three selected green areas on highland environment. The research was carried out through a series of field measurement and audio-visual experiment. At the first stage of the study, the ...


Where There Is No Engineer’ Using A Problem Based Project To Develop Graduate Attributes In First Year Engineering Students, Una Beagon, Dervilla Niall 2015 Dublin Institute of Technology

Where There Is No Engineer’ Using A Problem Based Project To Develop Graduate Attributes In First Year Engineering Students, Una Beagon, Dervilla Niall

Conference papers

This paper investigates the use of a Problem Based Learning (PBL) project within a first year engineering Design Project module to assess how effective it can be in improving graduate attributes. As a teaching pedagogy, the benefits of PBL include a deeper understanding of lecture material by students and enhancement in problem solving and collaboration skills. However, the benefit of PBL in developing graduate attributes is unclear.

The Dublin Institute of Technology (DIT) offers a range of Level 8 honours degree engineering programmes, although all students transition through a common first year programme. Modules within the first year are typically ...


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