Engineering Commons^™

Delay Causality Network In Air Transport Systems, Wen-Bo Du, Ming-Yuan Zhang, Yu Zhang, Xian-Bin Cao, Jun Zhang

Civil and Environmental Engineering Faculty Publications

To better understand the mechanism of flight delay propagation at the system-level, we built a delay causality network (DCN) based on the Granger causality test. Through topological analysis of DCNs, we found that only about a quarter of airports were involved in delay propagation during the peak travel period and large airports affected by many upstream airports impact fewer downstream airports. Furthermore, temporal analysis of DCNs indicates that the culprits of delay propagation in the air transport system are not a fixed set of airports; instead, they vary daily depending on the operational environment.

Automating The Analysis Of Uncertainties In Multi-Body Dynamic Systems Using Polynomial Chaos Theory, Paul Ryan

Dissertations (1934 -)

Variation occurs in many multi-body dynamic (MBD) systems in the geometry, mass, or forces. This variation creates uncertainty in the responses of an MBD system. Understanding how MBD systems respond to the variation is imperative for the design of a robust system. However, the simulation of how variation propagates into the solution is complicated as most MBD systems cannot be simplified into to a system of ordinary differential equations (ODE). This presentation shows the automation of an uncertainty analysis of an MBD system with variation. The first step to automating the solution is to create a robust algorithm based on …

Impulse (College Of Engineering Publication), Matt Schmidt, Emily Weber, Kristi Schelhaas, Dave Graves, Christine Delfanian, Heidi Kronaizl

Impulse (Jerome J. Lohr College of Engineering Publication)

[Page] 2 Welcoming Dean Bruce Berdanier
[Page] 5 Engineers without Borders Remains a Passion
[Page] 6 New Office Looks in Crothers
[Page] 8 Ground Broken for Precision Ag Center
[Page] 9 Alum Honors Arden Sigl with Office Donation
[Page] 10 3D Printing for Space Station
[Page] 12 Center for Power Systems Studies Turns 50
[Page] 14 Daktronics - A Partner for 50 Years
[Page] 17 Quarter- scale Tractor Team Takes Title
[Page] 18 Partnership with Wastewater Treatment Plant
[Page] 22 Horner Succeeds at HR Green
[Page] 23 Hard Work Pays Off for Vejvoda
[Page] 24 Engineering's Student-Athletes
[Page] 26 Student …

Usu Faculty Member Brian Crookston Receives Young Professional Of The Year Award | College Of Engineering, Usu College Of Engineering

College of Engineering News

Utah State University's Brian Crookston received the Young Professional of the Year Award from the Association of State Dam Safety Officials. Crookston is an assistant professor of civil and environmental engineering.

Mysterious Soda Can, Said Shakerin, Edwin Pejack

All Faculty Articles - School of Engineering and Computer Science

No abstract provided.

Well-Failure Analysis Of The Devil’S Basin In Musselshell County, Mt., Alexander Koerner

Graduate Theses & Non-Theses

Central Montana’s Devil’s Basin is the home of the first wildcat well in Montana. However, numerous operators have failed to recover economic oil reserves in the nearly 100- year history of the play. Analysis of the geologic conditions within the Devil’s Basin leads to a modern understanding of the charge, reservoir, and trap potentials of the greater Devil’s Basin petroleum play. Primary focus within the play is the Heath and Tyler Formations. Evaluation of previous exploration guides the end narrative of recommendations to direct future production in the Devil’s Basin.

A representative geologic model describing the southeastern portion of the …

Remediation Investigation And Feasibility Study For “Inplace” Mine Waste Influenced Grove Gulch, Butte, Mt, Westley Lund

Graduate Theses & Non-Theses

Historical mining activities in Butte, Montana contributed to the deposition of heavy metal contaminated mine waste/tailings along the tributary streams of the Clark Fork River. These tributary streams, Silver Bow Creek (SBC), Blacktail Creek (BTC), and Grove Gulch make up the headwaters of the Clark Fork River, which flows through western Montana. SBC is currently impaired for arsenic (As), cadmium (Cd), copper (Cu), lead (Pb), mercury (Hg), zinc (Zn), and sedimentation (MTDEQ, 2016). BTC is the headwaters of SBC, while Grove Gulch discharges into BTC. Grove Gulch is an intermittent stream south of Butte, that is approximately 6 miles in …

An Evaluation Of The Deployment Of A Distributed Strain And Temperature (Dst) Fiber Optic Sensing System In An Underground Facility, Calvin Kammerer

Graduate Theses & Non-Theses

In an effort to further mine safety and utilize the recent advances in fiber optic sensors’ distributed sensing capabilities, a research project at Montana Tech has deployed fiber optic sensors in an underground environment. The method of Brillouin scattering that has documented success in a mining environment will be used because it shows the greatest potential for detecting both temperature and strain in the deployed environment, as well as the ability to differentiate between the two. The primary objective of the Montana Tech research is to create a scenario where the distributed sensing technology can be evaluated for its sensing …

Improving A Transient Stability Control Scheme With Wide-Area Synchrophasors And The Microwecc, A Reduced-Order Model Of The Western Interconnect, Robin Hallett

Graduate Theses & Non-Theses

This thesis is composed of two research projects. The first project investigated the feasibility of improving a generator tripping control scheme using wide-area synchrophasors and the second project focused on building a reduced-order model of the western North American power system (wNAPS) for use in a real-time digital simulator.

Transient stability is a major reliability issue for power systems. Radially-connected power plants are especially prone to transient stability problems. An example of this is the fourgenerator Colstrip power plant located in southeast Montana, USA. The Colstrip generators are protected by a tripping control system called the Acceleration Trend Relay (ATR) …

Surface Chemistry And Modelling Of Salicyl Hydroxamic Acid Adsorption At The Surface Of Rare Earth Oxides, Carbonates And Phosphates, Marc F. Sime

Graduate Theses & Non-Theses

The adsorption mechanism of salicyl hydroxamic acid (SHA, C7H7O3N) on rare earth minerals was investigated using two complementary methods: precipitation studies and modelling. Precipitation studies showed that SHA adsorption occurs through a displacement of the hydroxide ion at the surface in an ion exchange mechanism, leading to surface precipitation and/or chemisorption. Surface precipitation predominates in the light rare earth oxides (LREOs), while chemisorption predominates in the heavier REOs. Modelling revealed that adsorption of SHA on the REM surface is dependent upon the orientation of SHA on the surface as well as the distance between rare earth elements sites on the …

Evaluation Of Continuous, Low-Intensity Ultraviolet Irradiation For Biofilm Prevention, Stephanie Conrad

Graduate Theses & Non-Theses

Biofilms occur when planktonic bacteria attach to a surface, forming a sticky, extracellular matrix that makes them difficult to remove. Biofilms are especially troublesome in water filtration membrane systems due to their strong adhesive properties. Once attached, biofilms cause a decrease in water production (biofouling) and an increase in membrane degradation. Traditional cleaning methods use harsh chemicals and require modules being taken offline, which reduces water production rates. Moreover, despite current cleaning efforts, irreversible biofouling inevitably leads to membrane module replacement. The implementation of low-intensity UV irradiation for biofilm prevention could decrease waste and increase production. However, while much is …

Stratigraphy And Sedimentology Of The Black Lion Conglomerate, Eastern Pioneer Mountains, Beaverhead County, Southwestern Montana, Vincent Spinazola

Graduate Theses & Non-Theses

The purpose of this study was to investigate the age and depositional setting of the Black Lion Conglomerate in the Eastern Pioneer Mountains of southwest Montana. Located at Section 5, T3S, R11W, Beaverhead County, Montana, the Grace Lake field site is the primary focus of this study. Other field sites include Hecla, Black Lion Lake, Black Lion Creek, and Sheep Mountain. Previous studies suggested the Black Lion Conglomerate is either Cambrian or Proterozoic in age. The base of the Black Lion Conglomerate is not exposed at any location. The Black Lion Conglomerate is at least 120m (394ft) thick.

In this …

Low-Profile Diplexing Filter/Antenna Based On Common Radiating Cavity With Quasi-Elliptic Response, Kirti Dhwaj, Xiaoqiang Li, Li (Lijun) Jun Jiang, Tatsuo Itoh

Electrical and Computer Engineering Faculty Research & Creative Works

A low-profile single-layer substrate integrated waveguide (SIW) diplexing filtering antenna with two-pole response in each channel is presented. Synthesis technique is proposed, which allows independent design of the filtering networks for the two channels. A common slot loaded SIW cavity is used to obtain the desired radiation in both channels. The diplexing filtering antenna provides quasi-elliptic response in both channels due to source-load coupling. The filtering antenna provides a maximum broadside gain of 2.65 and 2.7 dBi at operating frequencies of 5.25 (lower channel) and 5.8 GHz (upper channel), respectively. The interchannel isolation is more than 29 dB with a …

Exploring Adoption Of Augmented Reality Smart Glasses: Applications In The Medical Industry, Nuri A. Basoglu, Muge Goken, Marina Dabic, Dilek Ozdemir Gungor, Tugrul U. Daim

Engineering and Technology Management Faculty Publications and Presentations

This study explores the use of augmented reality smart glasses (ARSGs) by physicians and their adoption of these products in the Turkish medical industry. Google Glass was used as a demonstrative example for the introduction of ARSGs. We proposed an exploratory model based on the technology acceptance model by Davis. Exogenous factors in the model were defined by performing semi-structured in-depth interviews, along with the use of an expert panel in addition to the technology adoption literature. The framework was tested by means of a field study, data was collected via an Internet survey, and path analysis was used. The …

Komunikimi Wireless Dhe Menaxhimi I Smart Grid, Kreshnik Gashi

Theses and Dissertations

Ekziston një përpjekje ndërkombëtare për të zhvilluar rrjetet e mençura për të kapërcyer problemet e shkaktuara nga rrjetet e energjisë në plakje. Megjithatë, për të emigruar në rrjetin e ri, infrastruktura e IT duhet të integrohet me rrjetin aktual të energjisë. Tani ekziston një debat i vazhdueshëm rreth asaj se cila do të ishte zgjidhja më e mirë për teknologjinë e komunikimit të zgjuar të rrjetit. Një nga teknologjitë premtuese të komunikimit për realizimin e rrjetit të zgjuar është komunikimi me energji elektrike (PLC). PLC u ofron ndërmarrjeve mundësinë për të menaxhuar infrastrukturën e tyre të rrjetit. Kabllot e energjisë …

Menaxhimi Dhe Organizimi I Punishtes (Kompleksi Valoni), Ilir Jusufi

Theses and Dissertations

Pasi që gjendja aktuale në fushën e menaxhimit dhe organizimit nuk është në nivelin e duhur dhe aksidentet në fushën e ndërtimtarisë vazhdojnë të rriten si dhe kemi mungesë të hulumtimit nga kjo fushë në Kosovë. Qëllimi kryesor i këtij studimi është që në një të ardhme të afërt të kontriboj në këtë degë të ndërtimtarisë, pasi në Kosovë ende një numër i madh i njerëzve nuk e kanë kuptuar rëndësinë e menaxhimit dhe organizimit në hapësira ku punohet, e cila lidhet në mënyrë direkte me sigurinë e jetës së njeriut. Duhet të kuptohet që në çdo kompani ndërtimore, primare …

Kontrolli I Cilësisë Së Betonit Në Punishte (Kantierin E Ndërtimit) Nga Faza E Prodhimi Deri Në Fazën E Ndërtimit, Albert Hajdari

Theses and Dissertations

Qellimi i kesaj teme eshte qe te rrisim cilsin e betoneve,para se te egzekutohen ne punishte,te kemi komformitete te betonit.

Arsyja pse kam zgjedh kete temë esht se ne Kosovë mungon certefikata e komformiteteve,ku cdo ekzekutues duhet ta ketë certefikateten e komformitetit.

Ku ligji ndalon perdorimin-vuarja ne veper e produktit ndertimor ne objektin e ndertimit,eshte i obliguar te i permbahet kesaj rregullore.

Nuk lejohet pa udhezime teknike per punim dhe perdorim,nuk ka karakteristika sipas kerkesave te projektit ose u ka kaluar afati i perdorimit,perkatsisht te dhenat e rendesishme per punimet.

Mirmbajtaja e betonit dhe konstruksionit te betonit duhet te jetë …

Pllakat Kaseton, Adelina Elezi

Theses and Dissertations

Ky punim prezanton zgjidhjen arkitektonike,përvetsimin dhe dimensionimin e konstruksionit meskator të tipit kaseton,ku materiali projektues është nga betonarmeja e llojit C-30/37, ndërsa destinimi i objektit është për mbatjen e panaireve të ndryshme.Punimi është i ndarë në disa pjesë kryesore si: shqyrtimi i literaturës, deklarimi i problemit, metodologjia, analiza dhe prezantimi i rezultateve. Planimetria është e ndarë në trarëza në drejtimin x = (10 *1.2 ) kurse përgjatë drejtimit y = (10*1.4). Për zgjidhjen e detyrës së pari është filluar me caktimin e karakteristikave të materialit si vlera llogaritëse dhe caktimin e karakteristikave gjeometrike (caktimi i hapsirës statike, kontrollimin i punushmerisë …

Trarët Me Lartësi Të Ndryshuar, Edona Zeneli

Theses and Dissertations

Motivi për këtë hulumtim bazohet në cilësitë pozitive të drurit të laminuar si material ndërtimor. Dru i laminuar, i quajtur gjithashtu glulam, është një lloj produkti strukturor strukturor druri i përbërë nga një numër shtresash të drurit dimensional të lidhura së bashku me ngjitëse strukturore rezistente ndaj lagështirës.

Duke laminuar një numër të copave të vogla lëndë drusore, një pjesë e vetme e madhe, e fortë, strukturore prodhohet nga pjesë të vogla. Këto elementë strukturorë përdoren si kolona vertikale ose trare horizontale, si dhe forma të harkta, të harkuara. Glulam prodhohet lehtë në forma të lakuara dhe është i disponueshëm …

Markimi Ce, Endrit Krasniqi

Theses and Dissertations

Jo të gjithë prodhuesit janë të vetëdijshëm për përgjegjësitë e tyre dhe jo të gjithë blerësit janë të vetëdijshëm për kuptimin e vërtetë të markimit CE. Është me rëndësi jetike të kuptohet qëllimi i rregulloreve, rëndësia e përmbushjes së këtyre rregulloreve dhe udhëzimeve të prodhuesit, roli i sistemeve të cilësisë në procesin e pajtueshmërisë dhe vendimet që mund të merren nga prodhuesi.

Markimi CE harmonizon legjislacionin për sigurinë e produktit duke krijuar kërkesat themelore të sigurisë ligjore dhe standardet vullnetare të specifikimeve teknike. Për të marrë shenjën CE mbi një produkt, prodhuesi duhet të ecë përmes një trajektoreje dhe të …

Elementet Nga Betoni I Parafabrikuar, Llogaritja Preliminare E Një Nënkalimi, Alban Hajdari

Theses and Dissertations

Qellimi I kesaj teme eshte te tregoje rreth perpunimit dhe shfrytezimit te betonit te parafabrikuar. Po ashtu te tregoje avantazhet, perfitimet, menyren e pergatitjes, montimit ne vendpunishte, lidhjeve te pjeseve te betonit, ekzekutimin e tyre ne vendpunishte ne varesi te pozicionit qe shfrytezohet ne object, shtrirjen ose perhapjen e tij ne tregun e sotem te ndertimit, aplikueshmeria e tij në Kosovë. Përshkruan vetitë e perbëresve të betonit të parafabrikuar si: cimento, agregatin dhe ujin. Ky punim perbehet nga 6 kapituj. Kapitulli I pare tregon për historikun e elementeve të parafabrikuara, po ashtu edhe vetit e përbërseve të betonit si cimenton, …

Ekzaminimi I Shufrave Në Tërheqje Për Beton Sipas Eurokodit En 10002-1:2001, Qendrim Gecaj

Theses and Dissertations

Qëllimi i kësaj teme është të bëj një hulumtim rreth ekzaminimit te shufrave perbeton sipas kodit EN 10002-1:2001. Shtjellimin e vet eurokodit dhe procedurave që po ashtu duhet të përdoren gjatë ekzaminimit që të tregojnë mënyren e përgaditjes së shufrave me dimensione te caktuara, matjen e dimensioneve të tyre dhe të dhënave të ndryshme të mostrave, mënyren e testimit me aparaturë, leximin e rezulltateve të përfituara nga aparatura, përfitimin e rezultateve specifike dhe të pergjithshme nga kërkesat e caktuara sipas EN 10002-1:2001.

Dyshemetë Nga Rrëshirat Epokside, Fatmir Rexhepi

Theses and Dissertations

Ndërtimtaria është veprimtari specifike që ka për synim ngritjen dhe rikonstruktimin e objekteve ndërtimore. Si veprimtari, ajo realizon produktin e caktuar i cili është pjesë e proceseve të shumta zingjirore ndërtuese. Tematikë e këtij punimi janë dyshemetë nga rrëshirat ekpokside. Ky proces ndërtimorë trajton dyshemetë e mbuluara nga ky material i cili rritë performancën dhe funksionalitetitn e objektit. Pjesë e këtij studimi janë vetitë e epoksidit si materiali dhe kërkesat që duhet ti plotësojë.Gjithashtu ky punim shqyrton vuarjen në vepër dhe ndikimin e tij në jetëgjatësinë e betonit.

Në përgjithësi hulumtim prezanton arsyeshmërinë e përdorimit te epoksideve në dyshemetë industriale …

Analiza Dhe Projekti Ideor Ne Qytetin E Therandes, Vjollca Hoxha

Theses and Dissertations

Me rritjen e nivelit te modernizimit është rritur edhe nevoja e transportit si dhe arritja me e shpejt ne destinacjon e popullatës qe ka krijuar nevojën e udhëtimit me te sigurt si te udhetarve me automjete ashtu edhe e kembesoreve, nga kjo eshte linde nevoja qe transporti te behet me komod. Qarkullimi urban ka arriturr ne shkallen e nje pershpejtimi qe shkakton uljen e siguris se qarkullimit si dhe ben ndotjen e ajrrit dhe shkaktimin e zhurmave te mëdha.

Lidhshmërija në mes të kërkeses së transportit dhe kerkesave te natyrave te ndryshme ka rrite nevojen e hapsirave të ndryshme urbane …

Menaxhimi Dhe Organizimi I Punishtes, Raif Fejza

Theses and Dissertations

Qëllimi i këtij punimi është rritja e cilësisë dhe efektivitetit të proceseve të menaxhimit, monitorimit dhe kontrollit të projekteve inxhinierike, duke paraqitur një model të avancuar për llogaritjen e performancës së tyre. Integrimi dhe ndërthurja e koncepteve matematikore, ekonomike dhe inxhinierike, për vlerësimin e avancimit fizik të projektit, lëvizjes së flukseve monetare, shpërndarjes të burimeve të nevojshme dhe llogaritjes të afateve kohore, mund të konsiderohet si niveli më i lartë i menaxhimit dhe kontrollit të projekteve inxhinierike.

Nga studimi i menaxhimit te ndertimit ne Kosove, mund te perfundohet se kjo veprimtari te ne duhet te zhvillohet shume me teper ne …

The Aromatization Of Propene Via Nano-Size Hzsm-5, Wayne Seames, Swapnil Fegade, Inna Sakodynskaya, Darrin Muggli, Brian Tande, Alena Kubatova, Evguenii Kozliak

Chemistry Faculty Publications

Zeolite (ZSM) catalysts are known to convert small-size alkenes, e.g., propene, into aromatic hydrocarbons, specifically benzene, toluene and xylenes (BTX), with both high efficiency and specificity. The efficiency of conventional and hierarchical nano-size ZSM-5 for propene aromatization was compared in this study using a Design of Experiments (DOE) approach combined with detailed product analysis. Contrary to our expectations, the former showed a significantly greater BTX yield than the latter. Analysis of the obtained data by DOE and additional experiments with soybean oil cracking using both catalyst types indicated that a reason for the observed reduced activity of nano-scale zeolites may …

Tncs & Congestion, Joe Castiglione, Drew Cooper, Bhargava Sana, Dan Tischler, Tilly Chang, Gregory D. Erhardt, Sneha Roy, Mei Chen, Alex Mucci

Civil Engineering Reports

From the executive summary:

This document:

• Identifies common measures of roadway congestion;
• Discusses factors that contribute to roadway to congestion; and
• Quantifies the relative contributions of different factors, including population, employment, road network changes and TNCs, to observed changes in congestion in San Francisco between 2010 and 2016, by location and time of day.

The report utilizes a unique TNC trip dataset provided to the Transportation Authority by researchers from Northeastern University in late 2016, as well as INRIX data, a commercial dataset which combines several real-time GPS monitoring sources with data from highway performance monitoring systems. These data are …

Real Time Operation Of Smart Homes With Pv And Battery Systems Under Variable Electricity Rate Schedules And Transactive Power Flow, Huangjie Gong, Oluwaseun M. Akeyo, Vandana Rallabandi, Dan M. Ionel

Power and Energy Institute of Kentucky Faculty Publications

According to some utility schedules, the electricity rate is variable such that homes may be encouraged to buy and store power in a battery when it is inexpensive, and self-consume or sell to the grid during other times. Power arbitrage through a battery energy storage (BES), can help maintain consumer comfort and minimize residential electricity bills. This paper reports the calculated daily energy costs incurred by different types of homes for a given utility electricity rate schedule. The homes exchange power among each other behind a section of the distribution network. A free market system is formed and the electricity …

Modeling The Impact Of Traffic Conditions And Bicycle Facilities On Cyclists' On-Road Stress Levels, Àlvaro Caviedes, Miguel A. Figliozzi

Civil and Environmental Engineering Faculty Publications and Presentations

Past research efforts have shown that cyclists’ safety, stress, and comfort levels greatly affect the routes chosen by cyclists and cycling frequency. Some researchers have tried to categorize cyclists’ levels of traffic stress utilizing data that can be directly measured in the field, such as the number of motorized travel lanes, motorized vehicle travel speeds, and type of bicycle infrastructure. This research effort presents a novel approach: real-world, on-road measurements of physiological stress as cyclists travel across different types of bicycle facilities at peak and off-peak traffic times. By matching videos with stressful events, it was possible to observe the …

An Efficient Mode-Based Domain Decomposition Hybrid 2-D/Q-2d Finite-Element Time-Domain Method For Power/Ground Plate-Pair Analysis, Ping Li, Li (Lijun) Jun Jiang, Yao Jiang Zhang, Shuai Xu, Hakan Bagci

Electrical and Computer Engineering Faculty Research & Creative Works

Generally, with a surface magnetic current excitation, only the TM zmn modes are activated between the power/ground plate pair. As a result, the magnetic field only has azimuthal component while the longitude component is zero. To make full use of this quasi-2-D (Q-2D) property, a Q-2D finite-element time-domain (FETD) method combined with the basic 3-D triangular prism mesh elements is firstly proposed to solve the magnetic field wave equation. It is further noted that the higher order modes are confined in the proximity of the antipads (labeled as via domain) due to the exponential attenuation property along the propagating direction. …