Engineering Commons^™

Atomically Dispersed Pd On Nanodiamond/Graphene Hybrid For Selective Hydrogenation Of Acetylene, Fei Huang, Yuchen Deng, Yunlei Chen, Xiangbin Cai, Mia Peng, Zhimin Jia, Pengju Ren, Dequan Xiao, Xiaodong Wen, Ning Wang, Hongyang Liu, Ding Ma

Chemistry and Chemical Engineering Faculty Publications

An atomically dispersed palladium (Pd) catalyst supported onto a defective nanodiamond-graphene (ND@G) is reported here for selective hydrogenation of acetylene in the presence of abundant ethylene. The catalyst exhibits remarkable performance for the selective conversion of acetylene to ethylene: high conversion (100%), ethylene selectivity (90%), and good stability (i.e., steady for at least 30 hours). The unique struc-ture of the catalyst (i.e., atomically dispersion of Pd atoms on graphene through Pd-C bond anchoring) ensure the facile desorption of ethylene against the over-hydrogenation of ethylene to undesired ethane, which is the key for the outstanding selectivity of the catalyst.

Crystal Misorietation And Defect Generation During Contact Between Two Aluminum Substrates, Milad Khajehvand

Mechanical Engineering Master's Theses

With the use of molecular dynamics simulations, the nanoscale contact between two aluminum substrates at room temperature is studied. The so-called jump-to-contact (JC) phenomenon between (111) surfaces is observed to occur for interfacial distances below 5.8 ± 0.05 Å. This critical distance is approximately equal to 2.5 times the interplanar spacing of (111) planes in a perfect aluminum crystal at 300 K. The critical distance for JC is shown to be higher at higher contact temperatures because of the higher amplitude of atomic vibrations. The effect of employed interatomic potential on the critical distance is also discussed.

The critical distance …

Inspire E-News 09 2018, College Of Engineering And Applied Sciences

College of Engineering and Applied Sciences News

• Undergraduate Programs Receive Accreditation
• Welcome to New Faculty
• Pete Thannhauser: Honored for Distinguished Service to WMU
• Harry Potter is the Theme at Annual Passport Day
• Mallak named Fellow of ASEM
• Options for Cybersecurity Training Expands
• Please join us!
• Faculty Receives Best Paper Award
• Student Soars High with Aircraft Demonstration

The Effect Of Ultrasonic Power In Aluminum Wire Bonding Hardness Profiles, Matthew D. Mckay

Mechanical Engineering Master's Theses

Ultrasonic wire bonding is a critical process used widely across the microelectronics industry. Despite its ubiquity, there is a breadth of literature and ongoing active research into the basic principles of wire bonding. In particular, the effects of ultrasonic bonding on material properties are not fully understood. This thesis presents the effects of different ultrasonic bond powers on material properties. The changes in mechanical properties were measured by collecting Vickers microhardness data and nanoindentation data. The hardness in the bonded wire varied with two parameters: the distance from the bond interface, and the applied ultrasonic power. The hardness varied 5 …

Optical-Fiber-Based Smart Concrete Thermal Integrity Profiling: An Example Of Concrete Shaft, Ruoyu Zhong, Ruichang Guo, Wen Deng

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Concrete is currently the most widely used construction material in the world. The integrity of concrete during the pouring process could greatly affect its engineering performance. Taking advantage of heat production during the concrete curing process, we propose an optical-fiber-based thermal integrity profiling (TIP) method which can provide a comprehensive and accurate evaluation of the integrity of concrete immediately after its pouring. In this paper, we use concrete shaft as an example to conduct TIP by using the optical fiber as a temperature sensor which can obtain high spatial resolution temperature data. Our method is compared with current thermal infrared …

Rheological Properties Of Warm Mix Asphalt Binders And Warm Mix Asphalt Binders Containing Polyphosphoric Acid, Jun Liu, Kezhen Yan, Jenny Liu

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

This paper presents the laboratory investigation of properties of warm mix asphalt (WMA) binders and WMA binders containing polyphosphoric acid (PPA).Two types of warm mix additives were used to produce the WMA binders. Superpave tests were carried out on original and short-term aged binders through the rotational viscometer, the dynamic shear rheometer (DSR), and the bending beam rheometer (BBR). The results indicated that the WMA binders with different warm mix additives showed different viscosity values, however, the addition of PPA remarkably increased the viscosity values of these two kinds of WMA binders used, in the present study, to a similar …

Enginews, September 2018, School Of Computer Science & Engineering Institution: Sacred Heart University

News, Magazines and Reports

No abstract provided.

Ce 350-101: Transportation Engineering, Joyoung Lee

Civil and Environmental Engineering Syllabi

No abstract provided.

Mech 320-101: Statics And Mechanics Of Materials, Joseph Baladi

Civil and Environmental Engineering Syllabi

No abstract provided.

Numerical Simulation Study On Miscible Eor Techniques For Improving Oil Recovery In Shale Oil Reservoirs, Dheiaa Alfarge, Mingzhen Wei, Baojun Bai

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

Shale formations in North America such as Bakken, Niobrara, and Eagle Ford have huge oil in place, 100—900 billion barrels of oil in Bakken only. However, the predicted primary recovery is still below 10%. Therefore, seeking for techniques to enhance oil recovery in these complex plays is inevitable. Although most of the previous studies in this area recommended that CO₂ would be the best EOR technique to improve oil recovery in these formations, pilot tests showed that natural gases performance clearly exceeds CO₂ performance in the field scale. In this paper, two different approaches have been integrated to …

Ce 333-001-003: Reinforced Concrete Design, M Ala Saadeghvaziri

Civil and Environmental Engineering Syllabi

No abstract provided.

Mech 234-001-003: Engineering Mechanics: Statics, G Milano

Civil and Environmental Engineering Syllabi

No abstract provided.

Ce 332-001: Structural Analysis, Eduardo Castro

Civil and Environmental Engineering Syllabi

No abstract provided.

Ce 200a - Surveying Lab, Allison Lapatka

Civil and Environmental Engineering Syllabi

No abstract provided.

Ce 360-001: Sustainable Civil Engineering Materials, Matthew Adams

Civil and Environmental Engineering Syllabi

No abstract provided.

Individual And Community Quality Of Life In Nonmetropolitan Nebraska: Nebraska Rural Poll Research Report 18-3, Rebecca Vogt, Cheryl A. Burkhart-Kriesel, Randolph Cantrell, Brad Lubben, Larry J. Mcelravy Jr., Timothy Meyer

Rural Futures Institute: Publications

Table of Contents

Executive Summary

Introduction

Trends in Community Ratings (1996–2018)

Community Change, 1996–2018

Expected Community Change Ten Years from Now: 2011–2018

Expected Destination of Those Planning to Move: 1998–2018

Proportions of Respondents Very or Somewhat Satisfied with Each Service, 1997–2018

The Community and Its Attributes in 2018

Perceptions of Community Change by Region

Expected Community Change in Ten Years by Community Size

Feelings of Community Powerlessness by Region

Satisfaction with Retail Shopping by Region

Satisfaction with Cost of Housing by Community Size

Satisfaction with Cellular Phone Service by Community Size

Opinions About Community

Change in Community Political Discussions during …

Sociodemographics And Access To Organic And Local Food: A Case Study Of New Orleans, Louisiana, Chuo Li, Amir Ghiasi, Xiaopeng Li, Guangqing Chi

Civil and Environmental Engineering Faculty Publications

This study examined the association between physical accessibility to organic and local food, and sociodemographic factors in New Orleans, Louisiana. Spatial regression models were used to investigate how sociodemographic variables such as income, race/ethnicity, education, and age correlate with driving, bicycling, and walking distances to stores that sell organic or local food. The distances were calculated from GIS and real-time speed information from Google Maps. The results indicated that physical access to such stores is positively associated with population density, median housing value, education, non-Hispanic Blacks, and Hispanics, and is negatively associated with median housing age. We found no disparities …

Waterproofing Options For Bridge Decks, Danny Wells, Sudhir Palle, Theodore Hopwood Ii

Kentucky Transportation Center Research Report

Due to the increasing use of deicing chemicals and the subsequent intrusion of chlorides into bridge decks, it is necessary to expand the use of available protective measures, including waterproofing materials. Waterproofing options that fall into three categories; 1) membranes (liquid and sheet systems), 2) friction polymers (laminates), and 3) polymer asphalts. This study assessed the waterproofing characteristics of these products. Prior to this study, no common test had been established to compare the performance of waterproofing products. A test method was developed that closely follows ASTM D5084, “Standard Test Methods for Measurement of Hydraulic Conductivity of Saturated Porous Materials …

Interference Mitigating Satellite Broadcast Receiver Using Reduced Complexity List-Based Detection In Correlated Noise, Zohair Abu-Shaban, Hani Mehrpouyan, Bhavani Shankar M.R., Björn Ottersten

Electrical and Computer Engineering Faculty Publications and Presentations

The recent commercial trends towards using smaller dish antennas for satellite receivers, and the growing density of broadcasting satellites, necessitate the application of robust adjacent satellite interference (ASI) cancellation schemes. This orbital density growth along with the wider beamwidth of a smaller dish have imposed an overloaded scenario at the satellite receiver, where the number of transmitting satellites exceeds the number of receiving elements at the dish antenna. To ensure successful operation in this practical scenario, we propose a satellite receiver that enhances signal detection from the desired satellite by mitigating the interference from neighboring satellites. Towards this objective, we …

Data From: Market Segment Prediction Tool, Philip L. Winters, Amy Lester

TREC Datasets and Databases

Social marketing seeks to develop and integrate marketing concepts with other approaches to influence behaviors that benefit individuals and communities for the greater social good. Social marketing is a useful transportation demand management (TDM) planning approach to promote travel-behavior change, and combines at least seven distinguishing features that sets it apart from other popular, behavior-change planning approaches, such as education and mass media campaigns. These seven features include a focus on socially beneficial behavior change; a strong consumer orientation; the use of audience segmentation techniques and the selection of target audiences; the use of marketing’s conceptual framework (marketing mix and …

Capturing The Competing Influence Of Thermal And Mechanical Loads On The Strain Of Turbine Blade Coatings Via High Energy X-Rays, Albert Manero, Kevin Knipe, Janine Wischek, Carla Meid, John Okasinski, Jonathan Almer, Anette M. Karlsson, Marion Bartsch, Seetha Raghavan

Mechanical Engineering Faculty Publications

This paper presents findings of synchrotron diffraction measurements on tubular specimens with a thermal barrier coating (TBC) system applied by electron beam physical vapor deposition (EB-PVD), having a thermally grown oxide (TGO) layer due to aging in hot air. The diffraction measurements were in situ while applying a thermal cycle with high temperature holds at 1000 °C and varying internal air cooling mass flow and mechanical load. It was observed that, during high temperature holds at 1000 °C, the TGO strain approached zero if no mechanical load or internal cooling was applied. When applying a mechanical load, the TGO in-plane …

Net Zero Energy Houses With Dispatchable Solar Pv Power Supported By Electric Water Heater And Battery Energy Storage, Huangjie Gong, Vandana Rallabandi, Dan M. Ionel, Donald G. Colliver, Shaun Duerr, Cristinel Ababei

Power and Energy Institute of Kentucky Faculty Publications

Over a year, net zero energy (NZE) houses produce and feed zero net metered electrical energy to the grid. Technical challenges, notably the `duck curve' arise due to the fact that peak solar generation and load demand are seldom coincident. Common approaches to mitigate this limitation include the curtailment of solar power, and the use of storage. Surplus solar energy may be stored in a battery, which can subsequently be discharged to supply the home electricity needs when demand is in excess. In addition to batteries, less expensive electric water heaters, which are ubiquitous, can be modified as energy storage …

What You Don’T See, Brent Sturlaugson

Architecture Faculty Publications

Follow the supply chains of architecture and you’ll find not just product manufacturers but also environmental polluters and elusive networks of financial power and political influence.

Përmirsimi I Performancës Së Energjisë Përmes Smart Sistemeve Me Demostrim Në Kampusin E Ubt-Së, Musa Rama

Theses and Dissertations

Qëllimi i punimit të kësaj teme të diplomës në nivelin bachelor, është krijimi i një sistemi smart (të mençur) për kontrollimin e pajisjeve elektrike në shtëpi dhe objekte afariste. Duke tentuar që përmes këtij sistemi të mundësohet ngritja e performances së energjisë, konkretisht zvogëlimi i shpenzimeve elektrike përmes kontrollimit nga sistemi smart.

Në fillim ky sistem do të ndërtohet duke u bazuar në tre senzorë të cilët do të komunikojnë me softwerin e instaluar në telefonat e mençur, duke i lënë hapësirë dhe mundësi të zgjerimit të më tutjeshëm në varësi të kërkesave që do të dalin gjatë fazës së …

Lidhja E Turbinave Me Erë Në Sistemin Fotovoltaik, Blinera Bërbatovci

Theses and Dissertations

Zhvillimi i burimeve të ripërtrishme të energjisë po bëhet gjithnjë e më tërheqës. Në vitet e fundit prodhimi i energjisë fotovoltaike dhe energjisë së erës është rritur ndjeshëm. Një sistem energjie hibride përbëhet nga dy ose më shumë burime të ripërtërishme të energjisë të përdorura së bashku për të siguruar një rritje të efikasitetit të sistemit si dhe një ekuliber më të madh në furnizim me energji. Në këtë projekt sistemi hybrid i energjisë është një grup fotovoltaik i shoqruar me turbinë me erë. Ndërlidhja e rrjetit konverton rrezultatet e frekuencës dhe magnitudes të ndryshueshme nga sistemi Wind/PV në frekuencën …

Ndikimi I Sistemeve Të Tokëzimt Në Mbrojtje, Nderim Dema

Theses and Dissertations

Një pjesë e madhe e dëmtimeve ndodhin për shkak të dëmtimit të izolimit e që nuk është e lidhur me prodhuesin e tij. Dëmtimi i izolimit ndodh për shkak të dëmtimit fizik nga ana e personelit apo paisjeve ,vjetërimi i përshpejtuar nga temperaturat,ambient i papërshtatshëm ,mbitensionet, dëmtimet nga uji, tërheqja e tepërt e kabllove, realizimi jo i mirë i lidhjeve etj. Në mbrojtje gjithashtu luan rol të madh edhe sistemi i tokëzimit, ku do të përshkruajmë mënyrën e realizimit të tokëzimit në nënstacione, pajisjet për tokëzim dhe të gjitha parametrat e tij. Këtu do të flasim edhe për sistemet e …

Sfidat E Trajtimit Të Ndërtimeve Pa Leje, Rasti I Komunës Së Mitrovicës Së Jugut, Migjen Abrashi

Theses and Dissertations

Me hyrjen në fuqi të Ligjit Nr.04/L-188 për trajtimin e ndërtimeve pa leje është krijuar mundësia për trajtimin e ndërtimeve pa leje në territorin e Republikës se Kosovës. Ky ligj ka përcaktuar një procedure unike për trajtimin e ndërtimeve pa leje në tërë territorin e Republikës se Kosovës. Ligji ka hyrë në fuqi me 5 Shkurt 2014 dhe ka qenë në fuqi për tri (3) vite. Ky Ligj ka legalizuar vetëm ndërtimet. NUK ka përcaktuar pronësinë ndaj ndërtimit ose pronësinë ndaj parcelës ku është ndërtuar.

Në Kosovë, procesi i trajtimit të ndërtimeve pa leje ka qenë si pjesë e punës …

Assembling Of Niox/Mwcnts-Gc Anodic Nanocatalyst For Water Electrolysis Applications, Yaser M. Asal Mr., Islam M. Al-Akraa Dr, Saher D. Khamis Eng

Chemical Engineering

Glassy carbon (GC) electrode is intended to be modified with nickel oxide (NiOx) and multiwalled carbon nanotubes (MWCNTs) in the anodic reaction of water electrolysis. NiOx deposition time is optimized and a 5 min was enough to attain the maximum activity. A further modification of the catalyst with MWCNTs could greatly enhance its stability during continuous electrolysis. As an outcome, an energy amount of 21.7 kWh/KgO₂ is minimized. Several electrochemical and materials characterization setups will be utilized to test the catalyst activity and to know its geometry and structure.

Determining The Respiratory State From A Seismocardiographic Signal - A Machine Learning Approach, Christian Ulrich, Martin Jensen, Rolf Oberlin, Kouhyar Tavakolian, Farzad Khosrow-Khavar, Andrew Blaber, Kasper Sørensen, Samuel Schmidt

Electrical Engineering Faculty Publications

Seismocardiography (SCG) is a non-invasive method for measurement of vibrations on the chest wall originating from the heart. Respiration changes the morphology of the SCG-signal and analyzing these changes could improve the diagnostic value of SCG. This study aimed to determine the nasal respiration signal amplitude at mitral closure (MC) and aortic opening (AO) using SCG features. The three proposed methods for this were multiple regression analysis (MRA), support vector regression (SVR), and a neural network (NN). SCG, Electrocardiography and nasal-catheter flow signals were acquired from 18 healthy subjects (age 29± 6). SCG-signal fiducial points were used as features and …

Advancing Bridge Technology, Task 10: Statistical Analysis And Modeling Of Us Concrete Highway Bridge Deck Performance -- Internal Final Report, Omar Ghonima, Thomas Schumacher, Avinash Unnikrishnan, Adam Fleischhacker

Civil and Environmental Engineering Faculty Publications and Presentations

Concrete highway bridge deck repairs represent the highest expense associated with bridge maintenance cost. In order to optimize such activities and use the available monies effectively, a solid understanding of the parameters that affect the performance of concrete bridge decks is critical. The National Bridge Inventory (NBI), perhaps the single-most comprehensive source of bridge information, gathers data on more than 600,000 bridges in all fifty states, the District of Columbia, and the Commonwealth of Puerto Rico. Focusing on concrete highway bridge deck performance, this research developed a nationwide database based on NBI data and other critical parameters that were computed …