Engineering Commons^™

Selecting Technological Alternatives For Regulatory Compliance Towards Emissions Reduction From Shipping : An Integrated Fuzzy Multi-Criteria Decision-Making Approach Under Vague Environment, Khanh Quang Bui

World Maritime University Dissertations

No abstract provided.

Analytical Assessment Of Port Energy Efficiency And Management . : A Case Study Of The Kenya Ports Authority, Maryam Mohamed Kidere

World Maritime University Dissertations

No abstract provided.

Investigation Of Auxiliary Power Potentials Of Solar Photovoltaic Applications On Dry Bulk Carrier Ships, Wandifa Saidyleigh

World Maritime University Dissertations

No abstract provided.

Gender And Participation In An Engineering Problem-Based Learning Environment, Laura Hirshfield, Milo D. Koretsky

Interdisciplinary Journal of Problem-Based Learning

The use of problem-based learning (PBL) is gaining attention in the engineering classroom as a way to help students synthesize foundational knowledge and to better prepare students for practice. In this work, we study the discourse interactions between 27 student teams and two instructors in an engineering PBL environment to analyze how participation is distributed among team members, paying particular attention to the differences between male and female students. There were no statistically significant differences between the amount that male and female students spoke; however, stereotypical gender roles and traditional gendered behavior did manifest in the discussion. Also, regardless of …

Usu To Host Institute Of Biological Engineering Regional Conference | College Of Engineering, Usu College Of Engineering

College of Engineering News

Biological engineering students at Utah State University will host a regional conference aimed at connecting participants with industry.

E2district: Behaviour Demand Response, Julia Blanke, Christian Beder, Emily Twomey, Sezen Aladag Ozdemir, Martin Klepal

NIMBUS Articles

This work describes the Behaviour Demand Response approach proposed in the context of the EU Horizon 2020 E2District project, which aims at achieving energy efficiency in District Heating and Cooling (DHC) systems applied in building blocks. Behaviour Demand Response (BDR) can be understood as the attempt to adjust the demand for power in accordance with supply side constraints, instead of adjusting the supply side alone without considering the potential flexibility of the demand. In contrast to this, typical current energy systems assume a rather strict distinction between a consumer driven demand side behaviour on one end and a matching supply …

Strong-Dism: A First Attempt To A Dynamically Typed Assembly Language (D-Tal), Ivory Hernandez

USF Tampa Graduate Theses and Dissertations

Dynamically Typed Assembly Language (D-TAL) is not only a lightweight and effective solution to the gap generated by the drop in security produced by the translation of high-level language instructions to low-level language instructions, but it considerably eases up the burden generated by the level of complexity required to implement typed assembly languages statically. Although there are tradeoffs between the static and dynamic approaches, focusing on a dynamic approach leads to simpler, easier to reason about, and more feasible ways to understand deployment of types over monomorphically-typed or untyped intermediate languages. On this occasion, DISM, a simple but powerful and …

Modeling, Simulation And Characterization Of Optoelectronic Properties Of 2d-3d Coo-Ato Nano Structures, Ridita Rahman Khan

USF Tampa Graduate Theses and Dissertations

Devices for converting solar energy to electrical energy are not considerably efficient, though there are abundant renewable solar energy sources. Therefore there is a continuous call for investigation of new devices that are efficient and eco-friendly thereby contributing to harvested energy technology.

This thesis characterizes the optical constant (refractive index) of a novel material, cobalt oxide-antimony doped tin oxide (CoO-ATO). Thin film of CoO-ATO is generated using spin coating of CoO-ATO solution having 76.33% chloroform, 13.47% polystyrene, 10% antimony doped tin oxide and 0.2% cobalt oxide by weight. The thin film is analyzed through ellipsometry to acquire the refractive index …

Countywide Bluetooth System: Use Cases & Performance Measures, Shaun Quayle

PSU Transportation Seminars

Washington County has 124 permanent roadside Bluetooth readers, which passively and in an anonymous fashion collect travel time, speed, and origin-destination information across the major arterials in the urban County. This presentation gives an overview of the program purpose, history, some interesting use cases, and the formation of comparative performance metrics to gauge the magnitude and duration of congestion across the County. These metrics and information will help planners improve travel demand models, consultants improve traffic analyses, operations staff prioritize timing, detection, and maintenance functions, agencies inform traveler information data, and leaders better communicate the story of traffic demand, delay, …

Tidal Variability Related To Sea Level Variability In The Pacific Ocean, Adam Thomas Devlin, David A. Jay, Edward Zaron, Stefan A. Talke, Jiayi Pan, Hui Lin

Civil and Environmental Engineering Faculty Publications and Presentations

Ocean tides are changing worldwide for reasons unrelated to astronomical forcing. Changes in tidal properties coupled with altered mean sea level (MSL) may yield higher peak water levels and increased occurrence of short-term exceedance events, such as storm surge and nuisance flooding. Here we investigate the hypothesis that changes in relative sea level are correlated with alterations in tidal amplitudes. Our approach focuses on the correlation between short-term (monthly to interannual) fluctuations in sea level with changes in tidal properties of major ocean tides (M₂, and K₁; S₂ and O₁) at 152 gauges. …

Water, Sanitation, And Citizenship: Perceptions Of Water Scarcity, Reuse, And Sustainability In Valparaiso De Goias, Brazil, Paola Andrea Gonzalez

USF Tampa Graduate Theses and Dissertations

Access to reliable water and sanitation are two important goals to improve livelihoods around the world. Providing access to improved and safe water resources that are equitable and appropriate to local needs is important to improve sustainability long-term. In addition, framing access to water and sanitation as basic human rights is often used as a rationale in developing new water, sanitation, and hygiene interventions in developing countries around the world. But not all countries consider access to safe water and sanitation as a human right. In the thesis, the politics of improving and investment in water access and sanitation provision …

Analysis Of Distresses In Asphalt Pavement Transitions On Bridge Approaches And Departures, Manvitha Rajalingola

USF Tampa Graduate Theses and Dissertations

Some highway agencies in the United States are experiencing frequent distresses in asphalt pavements on bridge approaches/departures. Commonly observed distresses include alligator cracking and rutting, which reduce roadway smoothness and safety. To lessen the distresses in pavements it is needed to investigate the extent and root causes of the problem. Based on Florida highway conditions, this research study mainly focused on1. Literature review and identification of the extent of the problem; 2. Collection of relevant pavement condition data and descriptive analysis; 3. Development of statistical models to determine factors influencing the distresses in asphalt pavements on bridge approaches/departures. To the …

The Santa Clara, 2017-11-02, Santa Clara University

The Santa Clara

No abstract provided.

A Decision Support Tool For Building Integrated Renewable Energy Microgrids Connected To A Smart Grid, Damilola A. Asaleye, Michael D. Murphy, Michael Breen

Publications

The objective of this study was to create a tool that will enable renewable energy microgrid (REμG) facility users to make informed decisions on the utilization of electrical power output from a building integrated REμG connected to a smart grid. A decision support tool for renewable energy microgrids (DSTREM) capable of predicting photovoltaic array and wind turbine power outputs was developed. The tool simulated users’ daily electricity consumption costs, avoided CO₂ emissions and incurred monetary income relative to the usage of the building integrated REμG connected to the national electricity smart grid. DSTREM forecasted climate variables, which were used …

Modelling Tree Contribution In Susceptibility Analysis Of Shallow Llandslides, Roberto José Marín Sánchez, Juan Pablo Osorio

Articles

In this paper an assessment of shallow landslides susceptibility in a tropical and mountainous terrain is made. A method that allows to model slope stability over large areas is used. Tree contribution is quantified by means of three parameters: rainfall interception, root reinforcement and tree surcharge. A rainfall interception model is used to determine the rain available for infiltration and its temporal distribution during the simulation. The hydrological models included in TRIGRS are described, which allows to determine the pore water pressure depending on the initial conditions. This pore water pressure is used in the revised infinite slope stability model, …

Electroplating On 3d Printed Conductive Track, Kishore Kumar Kadari

USF Tampa Graduate Theses and Dissertations

There are substantial advances in Additive Manufacturing (AM) technologies. The simplest and advantageous technique of AM in terms of cost and scaling of the substrate is Fused Deposition Modeling(FDM). Currently, integration of electronics to a 3D printed structure is done manually after fabrication of the structure. To print electronic circuits directly on a 3D printed structure, copper electroplating process has been studied in this work.

To electroplate on the 3D printed insulating substrate, various materials were studied to make substrate conductive. By using conductive Polylactic Acid (PLA) filaments, a compatible substrate for electroplating was printed. Electroplating was proved to be …

Enhancement Of Two Passive Decentralized Biological Nitrogen Removal Systems, Justine L. Stocks

USF Tampa Graduate Theses and Dissertations

This research evaluates two different Biological Nitrogen Removal (BNR) systems for enhanced nitrogen removal in decentralized wastewater treatment. The first study evaluated the performance of Hybrid Adsorption and Biological Treatment Systems (HABiTS) at the pilot scale with and without stage 1 effluent recirculation. HABiTS is a system developed at the bench scale in our laboratory and was designed for enhanced BNR under transient loading conditions. It consists of two stages; an ion exchange (IX) onto clinoptilolite media coupled with biological nitrification in the aerobic nitrification stage 1 and a Tire-Sulfur Adsorption Denitrification (T-SHAD) system in the anoxic denitrification stage 2. …

Electrical, Optical And Thermal Investigations Of Cobalt Oxide-Antimony Doped Tin Oxide (Coo-Ato) Thin Films And Nanofiber Membranes, Nirmita Roy

USF Tampa Graduate Theses and Dissertations

The main aim of this thesis work is to investigate the electrical, optical and thermal impact characteristics of cobalt oxide doped antimony tin oxide (CoO-ATO) in the form of thin films and nanofiber membranes. CoO-ATO is a novel composite material that has the potential to be used as reinforced aircraft coatings, military garment coatings, or more specifically as an anti-reflective (AR) top coating for photovoltaic (PV) cells. This work will be critical in determining the effectiveness of using a CoO-ATO layer in these applications. Electrospun nanofibers and spin coated thin films consisting of a polymeric solution of CoO-ATO will be …

A Study Of Application-Awareness In Software-Defined Data Center Networks, Chui-Hui Chiu

LSU Doctoral Dissertations

A data center (DC) has been a fundamental infrastructure for academia and industry for many years. Applications in DC have diverse requirements on communication. There are huge demands on data center network (DCN) control frameworks (CFs) for coordinating communication traffic. Simultaneously satisfying all demands is difficult and inefficient using existing traditional network devices and protocols. Recently, the agile software-defined Networking (SDN) is introduced to DCN for speeding up the development of the DCNCF. Application-awareness preserves the application semantics including the collective goals of communications. Previous works have illustrated that application-aware DCNCFs can much more efficiently allocate network resources by explicitly …

The Hydraulic Size Of A Dam: A Metric Indicating Potential Hydrologic Impact For Storage And Diversion, Kelly M. Kibler

Faculty Scholarship and Creative Works

Easily-calculated metrics describing potential impacts of dams are often used as preliminary investigations, or in analyses describing hydrologic impact over large scales and involving many dams. However, common dam impact metrics overwhelmingly reflect effects of medium to large reservoirs. Indicators applied to describe a dam’s capacity to alter downstream river flows typically consider reservoir storage as a sole mechanism of hydrologic impact. Herein, metrics of hydraulic size are proposed to encompass potential impacts related to both storage and diversion of water. Hydrologic effect due to storage and diversion computed across a sample of diversion and non-diversion dams exemplifies that hydrologic …

Improving Large Scale Application Performance Via Data Movement Reduction, Dewan M. Ibtesham

Computer Science ETDs

The compute capacity growth in high performance computing (HPC) systems is outperforming improvements in other areas of the system for example, memory capacity, network bandwidth and I/O bandwidth. Therefore, the cost of executing a floating point operation is decreasing at a faster rate than moving that data. This increasing performance gap causes wasted CPU cycles while waiting for slower I/O operations to complete in the memory hierarchy, network, and storage. These bottlenecks decrease application time to solution performance, and increase energy consumption, resulting in system under utilization. In other words, data movement is becoming a key concern for future HPC …

Hydrodeoxygenation Of Acetic Acid As A Model Compound For The Aqueous Phase Catalytic Pyrolysis Oils, Hossein Jahromi, Foster Agblevor

Biological Engineering Faculty Publications

Catalytic pyrolysis of biomass generates organic, aqueous, gaseous and solid fractions. The organic fraction can be easily hydrotreated to produce hydrocarbons, but the aqueous phase that contains between 10 to 25% soluble organics can pose challenges in wastewater treatment. The aqueous fraction from the catalytic pyrolysis of Pinyon Juniper wood was characterized for its organic content. The fraction contained about 15 wt% organic compounds determined from Karl Fischer analysis. The organic fractions were further characterized using gas chromatography and mass selective detection (GC/MS). The analysis showed that the dissolved organics were composed of acetic acid, ketones, aldehydes, and phenolic compounds. …

Large Area Sintering Test Platform Design And Preliminary Study On Cross Sectional Resolution, Christopher J. Gardiner

USF Tampa Graduate Theses and Dissertations

Additive manufacturing involves the layer-wise patterned addition of material to create 3D parts, allowing for parts with complex geometries that traditional subtractive manufacturing processes cannot create, while offering good value for low run production parts by eliminating the cost of tooling. Large Area Sintering is a form of powder based additive manufacturing where entire layer cross sections are heated and fused in a single continuous exposure process. This layer by layer powder sintering process is similar to selective laser sintering, but by heating the cross section at a slower and controllable rate there is an opportunity to achieve tighter control …

Can We Re-Use “Single-Use” Solid Phase Extraction Cartridges?, Erin R. Morrison

USF Tampa Graduate Theses and Dissertations

Organic and inorganic compounds are present as contaminants in varying concentrations throughout our water cycle. Examples of these contaminants include the endocrine disrupting compounds (EDCs) bisphenol-A (BPA) and 17β-estradiol (E2) from plastics and pharmaceutical use. It can be necessary to obtain the concentration of these compounds within the water cycle for analysis by interested parties such as research groups, regulatory agencies, and private organizations. These concentrations, however, can be too dilute within the initial sample for analysis. Therefore it is necessary to concentrate the compound of interest (analyte) prior to analysis. One such way to do this is by way …

Wood Delights, Said Shakerin

SOECS Exhibitions

I am an outsider to the world of crafts as I used to be an engineering educator before I was struck by a neuro-degenerative disease, but have always been interested in making things with my hands. I slowly make decorative objects from discarded or partially decayed wood. The process of creating something beautiful, especially from discarded materials, to share with others is truly therapeutic for me. A brief overview of my work follows.

The woods come from a variety of sources such as coastal driftwoods, trimmings from fruit trees in our backyard, fallen branches in our neighborhood during storms, old …

Inspire E-News 11 2017, College Of Engineering And Applied Sciences

College of Engineering and Applied Sciences News

• 2017 Alumni Excellence Academy Award Recipients
• Students take top awards for best paper at transportation conference
• Nathan LaWarre: Change Agent on Campus

Design Of Telescopic Beams Based On Parametric Studies Using Fea And Statistical Optimization, Neha Arieckal Jacob

Philosophy Dissertations

This dissertation describes an investigation on the behavior of the overlap area in telescopic cantilevers under tip loads. The main aim of this research is to address the question of ‘how the overlap region of a telescopic beam behaves under a tip load’ and to develop a new generic approach to the design of telescopic beams based on parametric studies using FEA and statistical optimization. Experimental investigations and exploratory analyses were carried out to study the behavior of RHS (Rectangular Hollow Section) rings and RHS pieces. Based on these observations, theoretical explanations were developed and a methodology for the design …

Multi-Mw Solar Pv Pumping System With Capacity Modulation And Battery Voltage Support, Oluwaseun M. Akeyo, Vandana Rallabandi, Dan M. Ionel

Power and Energy Institute of Kentucky Faculty Publications

Solar photovoltaic (PV) renewable energy systems are undergoing major technological developments and large-scale field deployment and electric grid integration. This paper proposes a method of expanding the capacity of an existing irrigation farm with additional pumps powered by solar PV. The system includes PV arrays and battery energy storage connected to a common dc bus, which energizes an array of variable speed inverter driven pumps. Capacity modulation is achieved by energizing an optimal number of pumps required in order to meet a particular load demand with minimum supply energy. A grid connection to the dc bus of the power electronic …

Illuminator, Volume 1, Issue 2, Batten College Of Engineering & Technology

College of Engineering & Technology Newsletter

November 2017 issue of Illuminator, a monthly publication of ODU's Batten College of Engineering and Technology.

2016 Utah Angler Periodic Survey: Project Summary Report, R. J. Lilieholm, J. M. Keating, R. S. Krannich

All In-stream Flows Material

This report presents results derived from an online random sample survey of Utah residents and non-residents who were licensed to fish in the State of Utah over the 2016 calendar year. The survey was designed to provide estimates of angling activity and fish caught/kept information across the State as a whole, and at specific key locations. Additional questions asked anglers about trip satisfaction, crowding, fishing methods, and boat access. Key methods and findings from this study include the following: