Engineering Commons^™

Image Text Search And Retrieval System, Wayne De Fremery, Sanghun Kim

Barowsky School of Business | Faculty Patents

An imaging device comprising a flexible sensor attached to a control case. The flexible sensor provides both a source of illumination to the image being captured and a method of capturing the image. The method of capture comprises a field of reactors disbursed across the facial area of the sensor, the output of which produces a dot-pattern capture of the intended image which is passed to a storage device.

The Results Of Deliberation, Maggie Wittlin

The University of New Hampshire Law Review

When evaluating whether to sue, prosecute, settle, or plead, trial lawyers must predict the future—they need to estimate how likely they are to win a given case in a given jurisdiction. Social scientists have used mock juror studies to produce a vast body of literature showing how different variables influence juror decision making. But few of these studies account for jury deliberation, so they present an impoverished picture of how these effects play out in trials and are of limited usefulness.

This Article helps lawyers better predict the future by presenting a novel computer model that extrapolates findings about jurors …

Unconventional Methods For A Traditional Setting: The Use Of Virtual Reality To Reduce Implicit Racial Bias In The Courtroom, Natalie Salmanowitz

The University of New Hampshire Law Review

The presumption of innocence and the right to a fair trial lie at the core of the United States justice system. While existing rules and practices serve to uphold these principles, the administration of justice is significantly compromised by a covert but influential factor: namely, implicit racial biases. These biases can lead to automatic associations between race and guilt, as well as impact the way in which judges and jurors interpret information throughout a trial. Despite the well-documented presence of implicit racial biases, few steps have been taken to ameliorate the problem in the courtroom setting. This Article discusses the …

Molecular Tetrapods For Optoelectronic Applications, Jianzhong Yang

Chemistry and Chemical Biology ETDs

Most conjugated molecules including polymers and small molecules applied in organic solar cells (OSCs) have linear structures containing multiple aromatic groups connected in series. However, unfavorable film forming ability and grain boundaries both originated from high crystallinity of linear small molecules are detrimental to device performances. Thus, among multi-dimensional structures, tetrapodal molecules are especially interesting owing to their unique ability to mutually interlock, which prevents dislodging and provides high structural stabilities. Such molecular design can also increase absorption cross-sections and provide more extensively percolating pathways for charge transport, making such molecular tetrapods promising in OSCs applications. In my dissertation, I …

Brakes, Thrust Reversers, Beta Props, Spoilers And Life Dumps All Help In Deceleration Of Jets And Turboprops, Nihad E. Daidzic

Aviation Department Publications

No abstract provided.

25+ Years Of The Hubble Space Telescope And A Simple Error That Cost Millions, Said Shakerin

All Faculty Articles - School of Engineering and Computer Science

A simple mistake in properly setting up a measuring device caused millions of dollars to be spent in correcting the initial optical failure of the Hubble Space Telescope (HST). This short article is intended as a lesson for a physics laboratory and discussion of errors in measurement.

Organizimi I Ndërtimit Të Shkollës, Dri Cena

Theses and Dissertations

Punimi i diplomës me temen ‘‘Organizimi i Ndërtimit të Shkollës” nga lënda Organizimi dhe Teknologjia e Ndërtimit, pasqyron njohuritë e përgjithshme mbi menaxhimin, menaxhimin e projektit, dhe në vecanti organizimin e ndërtimit, njëherit spjegon llojet dhe specifikat e tyre. Sipas normave ndërkombëtare organizimi i punëve në punishte është trajtuar me rëndësi të vecantë, sidomos faktorët që ndikojnë në jetën dhe shëndetin e njeriut dhe rrethines së punishtes, duke përfshi qysh me informatat e sigurisë për rreth kantierit, kushtet informuese për siguri, ndihmën e parë. Një organizim i menduar më pare ndikon në përfundimin e projektit në kohë dhe …

Analiza E Projektit Te Kanalizimi Fekal Fsh. Mirenë Lipjan Projektimi Dhe Veshtërsitë Gjatë Zbatimit, Milaim Qeriqi

Theses and Dissertations

Ne këtë punim të temës të diplomës kemi një studim të projektit të kanalizimit të projektuar për fshatin Mirenë. Në këtë punim të diplomës detyrë e tij është studimi i projektit në aspektit se sa janë respektuar standardet e projektimit. Në filmi është studiuar projekti ekzistues pastaj është bë krahasimi i standardeve të projektimit.Është bërë analiza e standartve të materialeve të përdorura nga aspekti sasi dhe cilësi. Dimensionimi është kontrolluar si është bë dhe a përmbush nevojat dhe normat teknike .Metodat e studimit të këtij projekti ka qenë literatura projekti i gatshëm për kanalizimin në Mirenë duke I krahasuar me …

Restaurimi I Linjës Hekurudhore Fushë Kosovë - Pejë, Granit D. Zogejani

Theses and Dissertations

Rigjallërimi i linjës hekurudhore Rehabilitimi i plotë i infrastrukturës ekzistuese të linjës hekurudhore dhe zëvendësimi me një strukturë të re me qëllim sigurimi të një infrastrukture afatgjatë dhe efikase. Në këtë temë do të shqyrtojmë mundësinë e përshkrimit të një ideje për përmirësimin e infrastrukturës hekurudhore nga Fushë Kosova deri në Pejë. Fillimisht do t’i paraqesim objektivat për këtë projekt e më pas do bëhet vizibiliteti apo përshkrimi i gjendjes aktuale të infrastrukturës hekurudhore si dhe analizat dhe matjet e elementeve të linjës, me theks të veçantë në shtresën e epërme. Objektivi përgjithshëm i këtij projekti apo analize teknike është …

Optimizimi I Përdorimit Të Hirit Në Beton, Butrint Gërguri

Theses and Dissertations

Kjo temë diskuton ndikimin e hirit në vetitë e betonit me qëllim që të optimizojë nivelin e hirit të përdorur për aplikim të caktuar. Sasia optimale e hirit ndryshon jo vetëm me llojin e aplikimit, por gjithashtu edhe me përbërjen dhe proporcionet e të gjitha materialeve në përzierjën e betonit (veçanërisht hiri), kushtet gjatë vendosjës (veçanërisht temperatura), praktikat e ndërtimit (p.sh. përfundimi dhe fortësimi) dhe kushtet e ekspozimit. Pra, përmbajtja optimale e hirit ndryshon prej rasti në rast. Përmbajtje të hirit deri në 50% mund të jetë I përshtatshëm shumicën e elementeve duke siguruar që kërkesat e projektit për aftësi …

Behavior Of Double-Sided Concrete Corbels Reinforced With Glass-Fiber Reinforced Polymer Bars, Ayman Farid Abu Obaida

Theses

Steel reinforced concrete members with small shear span-to-effective depth ratios (a/d), such as corbels; have many classical applications, mostly in tall building, precast structures, factory buildings, bridges, and foundations. Despite extended research works on the performance of such members, little information is available on the performance of these members when reinforced totally with internal fiber reinforced polymer (FRP) bars. The use of FRP bars in reinforcing concrete members would eliminate corrosion problems thus increasing the service life of the structure. This thesis aims at investigating the shear strength of double-sided concrete corbels reinforced with glass-fiber reinforced polymer (GFRP) bars. The …

Engineering Cyber Physical Systems: Applying Theory To Practice Preface, Cihan H. Dagli

Engineering Management and Systems Engineering Faculty Research & Creative Works

No abstract provided.

Genetic Algorithm Optimization Of Sos Meta-Architecture Attributes For Fuzzy Rule Based Assessments, Andrew Renault, Cihan H. Dagli

Engineering Management and Systems Engineering Faculty Research & Creative Works

The analysis of an acknowledged systems of systems (SoS) meta-architecture requires a preliminary method for potential trade space exploration to ensure compliance to evolving capability requirements. It is important to assess the SoS meta-architecture concept to ensure that it satisfies all stakeholder needs and requirements in the early stages of development. There are numerous linguistic terms called key performance attributes (KPAs) that could be used to assess the different aspects of the architectures capabilities, however, too many KPAs could complicate the assessment. The initial population of suitable KPAs is reduced through non-derivative based optimization employed by a genetic algorithm (GA) …

Using Neural Networks To Forecast Volatility For An Asset Allocation Strategy Based On The Target Volatility, Youngmin Kim, David Lee Enke

Engineering Management and Systems Engineering Faculty Research & Creative Works

The objective of this study is to use artificial neural networks for volatility forecasting to enhance the ability of an asset allocation strategy based on the target volatility. The target volatility level is achieved by dynamically allocating between a risky asset and a risk-free cash position. However, a challenge to data-driven approaches is the limited availability of data since periods of high volatility, such as during financial crises, are relatively rare. To resolve this issue, we apply a stability-oriented approach to compare data for the current period to a past set of data for a period of low volatility, providing …

Water-Soluble Glass Substrate As A Platform For Biodegradable Solid-State Devices, Shihab Md Adnan, Kwangman Lee, Mohammad Tayeb Ahmad Ghasr, Matthew O'Keefe, D. E. Day, Chang-Soo Kim

Materials Science and Engineering Faculty Research & Creative Works

A biodegradable glass material is utilized as a novel functional element of solid-state devices. A water-soluble borate glass substrate serves as the structural platform on which thin film device is built. The glass substrate completely dissolves in a saline solution in approximately 40 h. Intentional failure of the spiral device (RLC resonator circuit) as a result of rapid structural disintegration by dissolution is demonstrated in DC, AC, and RF ranges that agrees well with simulation. Adopting water-soluble glass elements is expected to be a viable approach to develop reliable all-inorganic biodegradable devices that are fully functional during an intended operational …

Operator Splitting For Quasi-Linear Abstract Hyperbolic Equation, N. Dikhaminjia, J. Rogava, Mikheil Tsiklauri

Electrical and Computer Engineering Faculty Research & Creative Works

We consider an abstract hyperbolic equation with a Lipschitz continuous operator, where the main operator is self-adjoint and positive definite and represents a sum of two similar operators. For this equation, we construct a decomposition scheme of high order of accuracy. This scheme is based on rational splitting of cosine-operator function.

Characterising The Loading Direction Sensitivity Of 3d Woven Composites: Effect Of Z-Binder Architecture, Mohamed Nasr Saleh, Arief Yudhanto, Prasad Potluri, Gilles Lubineau, Constantinos Soutis

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Three different architectures of 3D carbon fiber woven composites (orthogonal, ORT; layer-to-layer, LTL; angle interlock, AI) were tested in quasi-static uniaxial tension. Mechanical tests (tensile in on-axis of warp and weft directions as well as 45° off-axis) were carried out with the aim to study the loading direction sensitivity of these 3D woven composites. The z-binder architecture (the through-thickness reinforcement) has an effect on void content, directional fiber volume fraction, mechanical properties (on-axis and off-axis), failure mechanisms, energy absorption and fiber rotation angle in off-axis tested specimens. Out of all the examined architectures, 3D orthogonal woven composites (ORT) demonstrated a …

Jitim Volume 25 Issue 3 - Front Page

Journal of International Technology and Information Management

JITIM volume 25, issue 3

Microfabrication For Polymer-Mems Micropumps: A Review, Kehang Cui

Manipal Journal of Science and Technology

The recent development of micropump with application in Biology and Chemistry is reviewed in this article. Instead of classifying micropump by actuation scheme, the biocompatibility and microfabrication issues for micropump are given special significance and used as new criteria for micro pump categorization. Among Polymer-based materials, Polydimethylsiloxane (PDMS) and Polymethylmethacrylate (PMMA) are the prevailing ones, are surveyed with reference to their biocompatibility and microfabrication technique, and followed by newly reported micropump respectively. Although new biocompatible material and its fabrication technique have brought substantial breakthroughs in micropump, they remain at the forefront and fertile research area in the future.

Mos2 As A Co-Catalyst For Photocatalytic Hydrogen Production From Water, Bing Han, Yun Hang Hu

Michigan Tech Publications, Part 1

Solar-to-hydrogen conversion based on photocatalytic water splitting is a promising pathway for sustainable hydrogen production. The photocatalytic process requires highly active, inexpensive, and earth-abundant materials as photocatalysts. As a presentative layer-structured transition metal dichalcogenides, molybdenum disulfide (MoS2) is attracting intensive attention due to its unique electro and photo properties. In this article, we comprehensively review the recent research efforts of exploring MoS2 as a co-catalyst for photocatalytic hydrogen production from water, with emphasis on its combination with CdS, CdSe, graphene, carbon nitride, TiO2, and others. It is shown that MoS2–semiconductor composites are promising photocatalysts for hydrogen evolution from water under …

Thin Film Concrete Coatings, Bobby W. Meade, Danny Wells, Theodore Hopwood Ii, Sudhir Palle

Kentucky Transportation Center Research Report

KTC researchers obtained eight types of concrete coatings to assess their performance and resistance to chloride penetration. Researchers evaluated eight of the systems in the field and seven in the laboratory. In the field, coatings were applied to a bridge pier that had suffered degradation and chloride contamination. This site will undergo long term monitoring in order to thoroughly evaluate the coating systems. Adhesion of all products in both field and laboratory application was sufficient to provide a durable coating, and ranged from approximately 500 psi to 1,600 psi. Researchers also tested color and gloss changes, which are early indicators …

Bridge End Settlement Evaluation And Prediction, Jiwen Zhang, Timothy R. Taylor, Roy E. Sturgill

Kentucky Transportation Center Research Report

A bridge approach is usually built to provide a smooth and safe transition for vehicles from the roadway pavement to the bridge structure. However, differential settlement between the roadway pavement that rests on embankment fill and the bridge abutment built on more rigid foundation often creates a bump in the roadway. Previous work examined this issue at a microscopic level and presented new methods for eliminating or minimizing the effects at specific locations.

This research studies the problem at a macroscopic level by determining methods to predict settlement severity; this assists designers in developing remediation plans during project development to …

Chloride Contamination Remediation On Steel Bridges, Bobby W. Meade, Christopher Goff, Sudhir Palle, Theodore Hopwood Ii

Kentucky Transportation Center Research Report

Researchers evaluated 32 steel surface preparation methods to determine how effectively they remove chloride from corroded chloride-contaminated steel panels. Wet methods proved more effective than dry methods. The three most effective wet methods injected mineral slag abrasives in a water stream and resulted in less than 1% chlorides remaining. Most dry surface preparation methods left significantly more chloride contamination after surface preparation. The three most effective dry methods used multiple blast cleaning cycles. These methods approached the effectiveness of the best wet methods, with 1.6 to 2.0% chlorides remaining. The least effective surface preparation was a single abrasive blast cleaning …

Functional Mri In The Presence Of Repetitive, Sub-Concussive Impacts, Trey E. Shenk

Open Access Dissertations

Recent research has raised understanding and awareness of the long-term risks associated with mild traumatic brain injury (mTBI). While much research has focused on the role of concussion (a single event exhibiting clear clinical symptoms), the role of repetitive sub-concussive impacts is not well understood. This study uses functional MRI measurements of high school football players to identify functional changes, even in the absence of clinical symptoms.

A Robot Platform For Intelligent Ground Vehicle Research, Jihang Li

Theses and Dissertations

This thesis presents a mobile platform developed for further research on the Intellegent Ground Vehicle project which began as a capstone project but without achieving full autonomy. The scope of the current project is to develop Robot Operating System (ROS) based driver libraries to the electronic system and provide application program interfaces (APIs) for higher abstraction level libraries. Prior work had provided a mechanical system and several sensors for the robot. The chassis of the vehicle is fabricated with aluminum tubings and enclosed with aluminum boards to protect internal electronics from environmental conditions. A three-wheel differential drive architecture is used …

Assessment Of Shear Prediction Models For Seismic Loss Estimation Of Concrete Buildings, Bashir Mohamed Ayman Al Murad

Civil and Environmental Theses

No abstract provided.

Characteristics Of Gan Thin Films Using Magnetron Sputtering System, Hasina Huq, Rocio Y. Garza, Roman Garcia-Perez

Electrical and Computer Engineering Faculty Publications

The paper presents a polycrystalline GaN thin film with a hexagonal wurtzite structure under the optimized sputtering conditions of 40 W RF power, 5 mT working pressure, using pure nitrogen gas with a substrate temperature of 700°C. The study examines the effects of surface disorders and incorporates it in the thin films characteristics. A radio frequency (RF) Ultra High Vacuum (UHV) Magnetron Sputtering System has been used for the deposition of Gallium Nitride (GaN) on silicon, sapphire and glass substrates with different parameters. The power is varied from 40 W to 50 W, and the pressure from 4 mT to …

Polarization Control By Using Anisotropic 3-D Chiral Structures, Menglin L.N. Chen, Li (Lijun) Jun Jiang, Wei E.I. Sha, Wallace C.H. Choy, Tatsuo Itoh

Electrical and Computer Engineering Faculty Research & Creative Works

Due to the mirror symmetry breaking, chiral structures show fantastic electromagnetic (EM) properties involving negative refraction, giant optical activity, circular dichroism and asymmetric transmission. Aligned electric and magnetic dipoles excited in chiral structures contribute to the extraordinary properties. However, the chiral structures that exhibit n -fold rotational symmetry show a limited tunability of the chirality. In this paper, we propose a compact, light, and highly tunable anisotropic chiral structure to overcome this limitation and realize a linear-to-circular polarization conversion. The anisotropy is due to simultaneous excitations of two different pairs of aligned electric and magnetic dipoles. The 3-D omega-shaped structure, …

Abandoning Creativity: The Evolution Of Creative Ideas In Engineering Design Course Projects, Elizabeth Starkey, Christine Toh, Scarlett Miller

Interdisciplinary Informatics Faculty Publications

Creativity training has been widely integrated into engineering education as a means to prepare students to be an innovative force in design industry. However, much of this research has focused on training students to be creative idea generators, with limited attention to what happens after this generation. Thus, the current study was developed to understand how creative ideas are promoted or filtered throughout the design process in order to focus our educational efforts. In order to accomplish this, an 8-week study with 136 engineering students was conducted. Our results point to the reduction in creativity throughout the design process and …

Failure Mechanism Of Woven Roving Fabric/Vinyl Ester Composites In Freeze–Thaw Saline Environment, Elias Anis Toubia, Sadra Emami, Donald A. Klosterman

Civil and Environmental Engineering and Engineering Mechanics Faculty Publications

This experimental study investigates the degradation mechanisms of a glass fiber-reinforced plastic material commonly used in civil engineering applications. A substantial reduction in tensile, shear, and compression properties was observed after 100 days of freeze–thaw cycling in saline environment (-20°C to 20°C). Non-destructive inspection techniques were progressively conducted on unexposed (ambient condition) and exposed (conditioned) specimens. The dynamic mechanical analysis showed permanent decrease in storage modulus that was attributed to physical degradation of the polymer and/or fiber–matrix interface. This indicated the formation of internal cracks inside the exposed glass fiber-reinforced plastic laminate. The 3D X-ray tomography identified preferred damage sites …