Engineering Commons^™

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

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:

Hidden Curriculum, Language, And Math: How To Help Emergent Bilinguals To Succeed In Stem, Marialuisa Di Stefano, Idalis Villanueva

Engineering Education Faculty Publications

No abstract provided.

Evaluation Of Roadway Reallocation Projects, Miguel Figliozzi

TREC Project Briefs

This NITC study offers a new methodology for evaluating the before-and-after effects of roadway space reallocation projects.

Classifying And Predicting Occupational Incident Severity, Fatemeh Davoudi Kakhki, Steven Freeman, Gretchen Mosher

Faculty Publications

The focus of the study is to build a predictive model and assess its performance in classifying the financial severity of occupational injuries in agribusiness bulk storage facilities (i.e. grain elevators). The data specifically look at food processing and feed milling operations within these facilities. The severity of occupational injuries is determined by the total dollar amount incurred on medical costs, indemnity costs and other expenses in workers’ compensation claims. The data is available from an agribusiness insurance provider in Midwest USA. First, the most important independent variables that affect the total cost of claims are extracted from the original …

Method For Selecting Coupling And By-Pass Capacitors In Multi-Stage Linear Circuits, Vladimir I. Prodanov, Dale Dolan

Electrical Engineering

A method for selecting a set of coupling and by-pass capacitors is presented. The approach uses short-circuit time-constant analysis and for a given −3 dB cut-off frequency minimises the total capacitance used. This study offers a derivation of design formulas and shows their use via examples.

Computational Prediction Of Conductivities Of Disk-Shaped Particulate Composites, Jian Qiu

Electronic Theses and Dissertations

The effective conductivities are determined for randomly oriented disk-shaped particles using an efficient computational algorithm based on the finite element method. The pairwise intersection criteria of disks are developed using a set of vector operations. An element partition scheme has been implemented to connect the elements on different disks across the lines of intersection. The computed conductivity is expressed as a function of the density and the size of the circular disks or elliptical plates. It is further expressed in a power-law form with the key parameters determined from curve fittings. The particle number and the trial number of simulations …

Efficient Identification Of Tanimoto Nearest Neighbors; All Pairs Similarity Search Using The Extended Jaccard Coefficient, David Anastasiu, George Karypis

Faculty Publications

Tanimoto, or extended Jaccard, is an important similarity measure which has seen prominent use in fields such as data mining and chemoinformatics. Many of the existing state-of-the-art methods for market basket analysis, plagiarism and anomaly detection, compound database search, and ligand-based virtual screening rely heavily on identifying Tanimoto nearest neighbors. Given the rapidly increasing size of data that must be analyzed, new algorithms are needed that can speed up nearest neighbor search, while at the same time providing reliable results. While many search algorithms address the complexity of the task by retrieving only some of the nearest neighbors, we propose …

What Lessons Can Be Learned From The Delivery Of The First Building On The Grangegorman Campus Using Building Information Management (Bim)?, Pat O'Sullivan, Avril Behan

Conference papers

There is an acceptance that BIM, via data management, can be integrated with FM to reduce costs during the Operations and Maintenance stage of a project. However, what has not been documented is the ‘on the ground’ reality which can be reviewed as a lessons learnt exercise to improve the implementation of BIM FM for future projects. This case study sets out to explore the realities of a client’s adoption of BIM based upon the actual experience of the Greenway Hub. Rather than relying on anecdotal evidence the research was based upon the real practices and experiences of the Dublin …

Mass-Balance Assimilative Capacity Model Of Inniscarra Reservoir, Zeinab Bedri, Ahmed Nasr, Sean Crowley

Conference papers

Wastewater arising from the Coachford agglomeration is treated at the existing Coachford Waste Water Treatment Plant (WWTP). This wastewater treatment facility has a primary treatment only with a design capacity of 450 population equivalent (PE) and it discharges the effluent into the Inniscarra Reservoir. The discharge from Coachford WWTP has been identified by the Lower Lee - Owenboy Water Management Unit Action Plan (WMUAP) as a point source pressure on the waters of the Lower Lee - Owenboy catchment and also as a cause of the strongly eutrophic status of Inniscarra Reservoir water quality by the EPA in 2009. Therefore, …

Porter Henderson Library Display: Aviation History Month, Angelo State University

Aeronautics

Bibliography and photograph of a display of government documents from Angelo State University, Porter Henderson Library, San Angelo, Texas.

A Modeling Enterprise For Chemistry Of Indoor Environments (Cie), G. C. Morrison, N. Carslaw, M. S. Waring

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

No abstract provided.

Evaluation Of Roadway Reallocation Projects: Analysis Of Before-And-After Travel Speeds And Congestion Utilizing High-Resolution Bus Transit Data, Miguel A. Figliozzi, Travis B. Glick

TREC Final Reports

The traditional process of identifying corridors for road diet improvements involves selecting potential corridors (mostly based on identifying fourlane roads) and conducting a traffic impact analysis of proposed changes on a selected roadway before implementing changes. The evaluation of roadway reallocation projects should include the analysis of traffic volumes, level of service, speeds, queue lengths and bus operations. There are tools and equipment to evaluate effectively traffic volumes and level of service changes in before-and-after studies. However, the detailed evaluation of speed and queue length distributions along a segment are significantly more cumbersome. In addition, the exhaustive evaluation of bus …

An Optimal Milk Production Model Selection And Configuration System For Dairy Cows, Fan Zhang

PhDs

Milk production forecasting in the dairy industry has been an independent research topic since the early 20th century. The accurate prediction of milk yield can benefit both the processor (creameries) and the producer (dairy farmer) through developing short-term production schedules, planning long-term road maps, facilitating trade and investment in the dairy industry, improving business operations, optimising the existing infrastructure of the dairy industry, and reducing operating costs. Additionally, due to the innate characteristics of the milk production process, the accurate prediction of milk yield has been a challenging issue in the dairy industry. With the abolishment of EU milk quotas …

Time-Dependent Prestress Loss Behavior Of Girders In Missouri Bridge A7957 Compared With A U.S. Data Set Of High-Performance Concrete Bridge Girders, Hayder H. Alghazali, John J. Myers

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

In this study, six precast, prestressed concrete girders were constructed and instrumented to measure prestress losses of bridge A7957 in Missouri. The concrete mixture for the bridge was designed with varying mechanical and rheological properties. High-strength concrete, high-strength self-consolidating concrete, and normal-strength self-consolidating concrete were used to construct the bridge girders. Vibrating wire strain gauges with integrated thermistors were embedded through the girders' cross sections to measure strains and temperatures. The measured short- and long-term prestress losses were compared with those obtained using different empirical models, specified in the AASHTO LRFD Bridge Design Specifications and in the PCI Design Handbook: …

Unh Stormwater Center Qapp For Wadoe Tape 2017, Unh Stormwater Center

UNH Stormwater Center

No abstract provided.

A High Quality, Eulerian 3d Fluid Solver In C++, Lejon Anthony Mcgowan

Computer Science and Software Engineering

Fluids are a part of everyday life, yet are one of the hardest elements to properly render in computer graphics. Water is the most obvious entity when thinking of what a fluid simulation can achieve (and it is indeed the focus of this project), but many other aspects of nature, like fog, clouds, and particle effects. Real-time graphics like video games employ many heuristics to approximate these effects, but large-scale renderers aim to simulate these effects as closely as possible.

In this project, I wish to achieve effects of the latter nature. Using the Eulerian technique of discrete grids, I …

Time Effect Of Water Injection On The Mechanical Properties Of Coal And Its Application In Rockburst Prevention In Mining, Xiaofei Liu, Guang Xu, Chong Zhang, Biao Kong, Jifa Qian, Dong Zhu, Mingyao Wei

Mining Engineering Faculty Research & Creative Works

Coal seam water injection is widely used to prevent rockbursts in coal mines, and the duration of water injection is an important parameter related to the effectiveness of rockburst prevention, making it of practical importance to optimize the effective water injection duration. This paper presents the test results of the mechanical properties and pore structure of samples with different soaking time, obtained from a working face where rockburst occurred. Soaking time changes the mechanical properties of samples, and this time effect differs with the coal size (from centimeter to nanometer size). Results of numerical simulation and on-site tests in the …

Hardware Based Testing Of Communication Based Control For Dc Microgrid, Mahmoud Saleh, Yusef Esa, Ahmed Mohamed

Publications and Research

This paper further describes our work presented in Industry Application Society 2016 Conference, with more details related to the control and operation of the microgrid. The DC microgrid facility was custom designed and implemented at CCNY with minimal off-the-shelf components to enable flexibility and reconfiguration capability. The design steps, requirements, and experimental results of the developed testbed were discussed. As a case study, a central controller for energy management algorithm was developed and tested under several operational scenarios. The experimental results verify the applicability of the developed testbed for validating DC microgrid controllers.

Bs News November/December

Building Services Engineering

No abstract provided.

Menaxhimi Dhe Organizimi I Punishteve Në Kosovë, Gresa Xhemaili

Theses and Dissertations

Gjendja aktuale në fushën e menaxhimit dhe organizimit të ndërtimit në Kosovë nuk është në nivelin e duhur dhe aksidentet në fushën e ndërtimit vazhdojnë të rriten. Në Kosovë ka mungesë të hulumtimit nga kjo fushë dhe ende nuk është kuptuar mjaftueshëm rëndësia e saj, e cila lidhet në mënyrë direkte me sigurinë e jetës së njeriut, si dhe cilësinë e ndërtimit. Suksesi i një ndërtimi arrihet nëse ai ka përfunduar pa asnjë aksident, kohëzgjatja e punëve është realizuar sipas planit dinamik të paraparë dhe në fund ka sjellur një cilësi të dëshirueshme në tregun e ndërtimit.

Qëllimi kryesor i …

Sinjalizimi Si Element I Siguris Në Rrugë, Fisnik Elezi

Theses and Dissertations

Gjendja aktuale e sinjalizimeve dhe udhekryqeve në Kosovë nuk është në nivelin e duhur, duke parë problemet në këtë fushë kam punuar këtë temë. Qëllimi i këti punimi ka qenë që sado pak të kontribojm në sigurinë e komunikacionit dhe ti njoftojmë lexusit me rregullat e organizimit te udhëkryqeve dhe vendosjen e shenjave të komunikacionit në rrugët tona. Shenjat në rrugë janë të destinuara për rregullimin e komunikacionit rrugorë, njoftimin dhe udhëzimin e pjesëvemarrësve në trafik. Shënohen në rrugët me trotuar bashkëkohor, vetë ose janë të vendosura me shenjat e tjera të komunikacionit nëse është e nevojshme për të thksuar …

Skelet Në Objektin Banesor B+P+7 Në Lagjen Arbëria, Prishtinë, Korab Krasniqi

Theses and Dissertations

Teoria për montimin e skeleve ka lehtësuar punën e montimit në praktikë. Qëllimi kryesor i këtij studimi është që të analizoj llojet e skeleve, mënyrën e montimit të tyre, si dhe mënyrën e punës në skele në objekte tëndryshme në Kosovë. Çfarë lloje të skeleve, në cilat objekte vendosen? Si bëhet montimi i skeleve? Si është mënyra e punës dhe cilat janë rreziqet gjatë punimit në skele, çfarë mund të shkaktojë rrezikun dhe cilat masa mbrojtëse duhen tëndërmirren? Ky studim tenton që të kontribojnë identifikimin e mënyravemë të lehta, më të sigurta, më cilësore të punimit dhe montimit të skeleve, …

Përdorimi I Betonit Vetë-Ngjeshës Në Ndërtimtari Dhe Infrastruktur, Meriton Veliu

Theses and Dissertations

Industria e ndërtimit ka filluar të përdorë betonin vetë-ngjeshës (SCC-SELFCOMPACTING CONCRETE) në punimin e urave, ndërtesave dhe tuneleve që prej vitit 1990. Në pesë vitet e fundit një numër i madh i urave kanë qenë të ndërtuara me SCC në Japoni edhe Evropë, ndërsa në SH.B.A numri i konsiderushem i urave që lidhin autostradat. Mirëpo në SH.B.A industria e betonit të parapërgatur ka filluar të aplikohen në arkitekturë. SCC ka potencial të lartë për aplikim në ndërtimin e urave dhe autostradave. Ky dokument përmban aplikueshmerinë e SCC në Japoni dhe Europë, ai diskuton rreth potencialit për aplikimin e tij në …

Studim Preliminar Mbi Efektin E Hirit Fluturues Në Vetitë E Betonit, Bardh Kurteshi

Theses and Dissertations

Betoni, është një prej materialeve më të përdorura në industrinë e ndërtimit. Për prodhimin e tij si materiale bazë janë agregati, çimentoja dhe uji. Agregati dhe uji si materiale mund të gjinden në natyrë por çimento si material kërkon procedura të përpunimit për produktin final. Prodhimi çimentos në industri kërkon sasi të lartë të energjisë, kjo energji në vendin tonë prodhohet nga TEC-et nga djegija e qymyrgurit duke liruar sasi të lartë të hirit. Pas hulumtimeve të përbërjes kimike të hirit fluturues të termocentraleve është vërejtur një përbërje pothuajse e njejtë kimike andaj po tentohet përdorimi tij për ta zëvendësuar …

Llogaritja E Shpateve Në Gurëthyesin “ Pasomë “- Vushtrri, Fatos Canaj

Theses and Dissertations

Punimi me titull “Llogaritja e shpateve në Gurëthyesin Pasomë Vushtrri paraqet rendësi të domosdoshme për nxjerrjen dhe shfrytëzimin e gurit gëlqerore që është i nevojshëm për punët ndërtimore e posaçërisht në infrastrukturën rrugore dhe punimeve tjera sipas kërkesave dhe nevojave të tregut të punës. Në ketë lokacion është ber incizimi gjeodezike i terenit me koordinatat e hartës sipas fig.2.ku në ketë lokacion janë kryer analizat fiziko-mekanike që janë të domosdoshëm për llogaritjen e stabilitetit të shpateve për faktorin e sigurisë Fs të lejuare sipas standardeve Gjeoteknike. Gjatë llogaritjeve janë marre për bazë të gjitha metoda krahasuese sipas autoreve për verifikimin …