Inspire E-News 12 2018, 2018 Western Michigan University
Inspire E-News 12 2018, College Of Engineering And Applied Sciences
College of Engineering and Applied Sciences Newsletter
- Holiday greetings from the Dean
- Simulating flight
- Join us for Innovation EXPO
- Students attend Society of Women Engineers annual conference
- Last roll
- Ph.D. student joins board of industrial engineering institute
- College Snapshot: Industrial and Entrepreneurial
On The Development Of 8,000 Psi Geopolymer Mortar For Practical Use In Field Applications, 2018 University of Arkansas, Fayetteville
On The Development Of 8,000 Psi Geopolymer Mortar For Practical Use In Field Applications, Remington Gabriel Reed
Theses and Dissertations
Although there are several perceived benefits from the use of geopolymer binder as an alternative to ordinary portland cement in concrete materials, it is not widely used in field applications. Geopolymer materials have no set guidelines for mixture design and often require heat curing to facilitate strength gain. Additionally, many geopolymers are created using carefully controlled and high quality materials and activator chemicals. These factors greatly affect the practicality of the material. The goal of this research was to create a geopolymer material capable of achieving high compressive strengths at 28 days without heat curing, and using only readily available ...
Effect Of Continuity Plate Eccentricity On The Performance Of Welded Beam-To-Column Connections, 2018 University of Arkansas, Fayetteville
Effect Of Continuity Plate Eccentricity On The Performance Of Welded Beam-To-Column Connections, Jason Thomas Norwood
Theses and Dissertations
Beam-to-column connections in structural steel buildings may have varying degrees of rotational restraint and varying degrees of moment transfer. In fully restrained moment connections, shear is typically transferred through the beam web, while the moment is mostly transferred through the beam flanges which create tension/compression force couples. Column sections that are incapable of resisting these flange forces are often retrofitted with continuity plates within the connection region to improve capacity. In cases of unequal beam depths on either side of the column, an eccentricity between the framed-in beam flange and continuity plate may be required; however, limited research exists ...
Budget-Constrained Regression Model Selection Using Mixed Integer Nonlinear Programming, 2018 University of Arkansas, Fayetteville
Budget-Constrained Regression Model Selection Using Mixed Integer Nonlinear Programming, Jingying Zhang
Theses and Dissertations
Regression analysis fits predictive models to data on a response variable and corresponding values for a set of explanatory variables. Often data on the explanatory variables come at a cost from commercial databases, so the available budget may limit which ones are used in the final model.
In this dissertation, two budget-constrained regression models are proposed for continuous and categorical variables respectively using Mixed Integer Nonlinear Programming (MINLP) to choose the explanatory variables to be included in solutions. First, we propose a budget-constrained linear regression model for continuous response variables. Properties such as solvability and global optimality of the proposed ...
Variable Rate Irrigation Using A Spatial Evapotranspiration Model With Remote Sensing Imagery And Soil Water Content Measurements, 2018 University of Nebraska-Lincoln
Variable Rate Irrigation Using A Spatial Evapotranspiration Model With Remote Sensing Imagery And Soil Water Content Measurements, Sandeep Bhatti
Biological Systems Engineering--Dissertations, Theses, and Student Research
Variable rate irrigation may help in intensification of agriculture by producing more yield per unit inputs. Real time spatial information about water balance components is important for designing VRI prescription maps. This work involved use of a spatial evapotranspiration model for studying spatial variability in an agricultural field at the Eastern Nebraska Research and Extension Center near Mead, Nebraska. Imagery from unmanned aerial systems and Landsat were used as input for the spatial evapotranspiration model. Other inputs into the model were soil water content measurements from neutron probes, weather data, crop data, previous irrigation prescriptions, and soil properties for the ...
Evaluation Of A Centrifuge Consolidation Technique To Determine The Effects Of Temperature And Time On Kaolinite Properties, 2018 University of Arkansas, Fayetteville
Evaluation Of A Centrifuge Consolidation Technique To Determine The Effects Of Temperature And Time On Kaolinite Properties, Esteban Miranda Pinzon
Civil Engineering Undergraduate Honors Theses
The effects of time and temperature on the moisture content and unit weight profiles, as developed during a centrifuge consolidation process, were observed during the research program that is described herein. Specifically, a Beckman-Coulter Model J6-MI centrifuge with a six-place JS-4.2A swinging bucket rotor was utilized to consolidate kaolinite slurry samples. The consolidation procedure utilized specially designed slurry consolidometers, made from acrylic tubes with inside diameters of 2.63 inches (6.67 cm) and heights of 5.13 inches (13.04 cm). The tested kaolinite slurry samples were created by mixing 400 grams of dry kaolinite clay powder ...
Young’S Modulus As A Measurement To Estimate Damage Related With Alkali-Silica Reaction In Concrete., 2018 University of Arkansas, Fayetteville
Young’S Modulus As A Measurement To Estimate Damage Related With Alkali-Silica Reaction In Concrete., Anazaria J. Ortega Gonzalez
Civil Engineering Undergraduate Honors Theses
The main purpose of this research is to compare two nondestructive methods to assess Alkali-Silica reaction (ASR) in concrete. Fifteen concrete prisms were cast using aggregates with different Alkali-Silica reactivity such as Jobe sand and Van Buren sand. The change in strain, shear wave velocity and Young’s modulus were determined according to ASTM C129 and ASTM C215, respectively. This data was collected by Dillon K Self, who determined that the shear wave velocity and strain are inversely proportional. However, when single cracking in the concrete specimen transition to map cracking, the shear wave velocity dropped significantly, whereas the strain ...
Exploring Photo Privacy Protection On Smartphones, 2018 University of Arkansas, Fayetteville
Exploring Photo Privacy Protection On Smartphones, David Darling
Computer Science and Computer Engineering Undergraduate Honors Theses
The proliferation of modern smartphone camera use in the past decade has resulted in unprecedented numbers of personal photos being taken and stored on popular devices. However, it has also caused privacy concerns. These photos sometimes contain potentially harmful information if they were to be leaked such as the personally identifiable information found on ID cards or in legal documents. With current security measures on iOS and Android phones, it is possible for 3rd party apps downloaded from official app stores or other locations to access the photo libraries on these devices without user knowledge or consent. Additionally, the prevalence ...
Removal Of Carbamazepine From Drinking Water, 2018 University of Arkansas, Fayetteville
Removal Of Carbamazepine From Drinking Water, Juan Rodriguez, Tom Krumpolc, Adam Johnson, Paola Marrero-Rivera, Alex Gadberry, Zach Wiese
Chemical Engineering Undergraduate Honors Theses
Due to the increasing prevalence of prescription medication over the past few decades, pharmaceuticals have accumulated in various water sources. This has become a public health concern because many pharmaceuticals have limited research on the effects of chronic low-levelexposure. According to the World’s Health Organization (WHO), traces of pharmaceuticalsproducts have been reported in different water sources such as surface waters, wastewater, groundwater, and drinking water. One pharmaceutical of interest that has been detected in water sources is carbamazepine. Carbamazepine (CBZ) is a common pharmaceutical prescribedfor the treatment of seizure disorders, neuropathic pain, and various psychological disorders. It’s ...
Design And Testing Of A Sheath Device To Secure Rotator Cuff Anchors In Osteoporotic Bone, 2018 Grand Valley State University
Design And Testing Of A Sheath Device To Secure Rotator Cuff Anchors In Osteoporotic Bone, Alissa Smith
A rotator cuff tear is a common injury that affects many elderly people. These tears vary in severity, with moderate to severe tears requiring surgery. In rotator cuff surgery, bone anchors are used to re-attach the supraspinatus tendon to the humerus. This surgery is difficult in many older patients because aging bones become osteoporotic, or soft, and thus inadequate for securing bone anchors. Studies confirm that osteoporotic bone is a contributing factor of implant failure. A finned sheath concept was designed, developed, and tested to ensure securement of the bone anchors during and after rotator cuff repair. The sheath interacts ...
Analyzing Large Workers’ Compensation Claims Using Generalized Linear Models And Monte Carlo Simulation, 2018 San Jose State University
Analyzing Large Workers’ Compensation Claims Using Generalized Linear Models And Monte Carlo Simulation, Fatemeh Davoudi Kakhki, Steven A. Freeman, Gretchen A. Mosher
Agricultural and Biosystems Engineering Publications
Insurance practitioners rely on statistical models to predict future claims in order to provide financial protection. Proper predictive statistical modeling is more challenging when analyzing claims with lower frequency, but high costs. The paper investigated the use of predictive generalized linear models (GLMs) to address this challenge. Workers’ compensation claims with costs equal to or more than US$100,000 were analyzed in agribusiness industries in the Midwest of the USA from 2008 to 2016. Predictive GLMs were built with gamma, Weibull, and lognormal distributions using the lasso penalization method. Monte Carlo simulation models were developed to check the performance ...
Use Of Pv/T Panels To Meet The Building Loads Of Light Commercialized Buildings, 2018 University of Tennessee at Chattanooga
Use Of Pv/T Panels To Meet The Building Loads Of Light Commercialized Buildings, Sadhvi Arora
Masters Theses and Doctoral Dissertations
This thesis deals with the analysis of a Photo Voltaic Thermal (PV/T) panel that is capable of producing simultaneously electric power and low-grade heat energy by absorbing the solar energy striking on its surface. A simple mathematical model is developed to estimate the electric power and heat energy gained by the PV/T panel. A water-to-water heat pump is employed that operates by absorbing the low-grade heat energy obtained from PV/T panel, in its evaporator, in order to produce high temperature hot water in its condenser. The high temperature hot water thus produced can be employed to meet ...
Sustainable And Equitable Financing For Pedestrian Infrastructure Maintenance, 2018 University of New Mexico
Sustainable And Equitable Financing For Pedestrian Infrastructure Maintenance, Gregory Rowangould
Corresponding data set for Tran-SET Project No. 17PPUNM01. Abstract of the final report is stated below for reference:
"In many communities, pedestrian infrastructure is discontinuous, inaccessible to those with physical disabilities, and poorly maintained. Correcting these problems would be a first step in providing infrastructure to achieve the active travel and related transportation goals of many communities. One nearly universal challenge to maintaining sidewalks in a state of good repair and addressing environmental justice concerns is an adequate, sustainable, and equitable source of funding. Municipal governments across the country maintain and repair their streets and roadways; however, most require residents ...
Research Incentive Programs For Closures Of Public And Private Grade Crossings, 2018 Louisiana Transportation Research Center
Research Incentive Programs For Closures Of Public And Private Grade Crossings, Julius Codjoe
Corresponding data set for Tran-SET Project No. 17PPLSU13. Abstract of the final report is stated below for reference:
"Vehicle-train crashes that occur at highway-rail crossings result in injuries, fatalities, and damage to equipment. In order to reduce the number of vehicle-train crashes, Federal Railroad Administration requires states which have challenges with crossing safety, including Louisiana, to develop a State Action Plan to improve grade crossing safety. Consequently, identification of specific solutions for improving safety at crossings was included in the 2015 Louisiana Transportation Plan as one of its objectives. This study seeks to identify and evaluate current and new incentive ...
Use Of Nanoclays As Alternatives Of Polymers Toward Improving Performance Of Asphalt Binders, 2018 Arkansas State University
Use Of Nanoclays As Alternatives Of Polymers Toward Improving Performance Of Asphalt Binders, Zahid Hossain, Ashraf Elsayed
Corresponding data set for Tran-SET Project No. 17BASU01. Abstract of the final report is stated below for reference:
"The main goal of this study is to assess the feasibility of the use of nanoclay as an alternative to commonly used polymers such as styrene-butadiene-styrene (SBS), which are used to modify the performance grade (PG) of asphalt binders. Three types of nanoclay and two types of neat binders were selected for laboratory investigation. Different amounts (1, 2, and 3%) of nanoclays were used. A blending protocol has been developed to mix the nanoclay with the asphalt binder. Rotational Viscosity (RV), Dynamic ...
Impacts Of Moisture On Asphalt Properties, 2018 Arkansas State University
Impacts Of Moisture On Asphalt Properties, Zahid Hossain
Corresponding data set for Tran-SET Project No. 17BASU03. Abstract of the final report is stated below for reference:
Stripping related moisture damage has been recognized as one of the major pavement distresses since the early 1990s. The main objective of this study is to establish an effective test protocol to quantify moisture susceptibility of asphalt pavements. To this end, selective test methods (Texas Boiling test, Tensile Strength Ratio, Retained Stability, and Hamburg Wheel Test), and procedures based on surface chemistries and molecular-level mechanistic properties have been investigated in this study. Firstly, a comprehensive list of literature related to moisture damage ...
Development Of A Standard Test Method For Characterization Of Asphalt Modifiers And Aging-Related Degradation Using An Extensional Rheometer, Nazimuddin Wasiuddin
Corresponding data set for Tran-SET Project No. 17BLSU01. Abstract of the final report is stated below for reference:
"An extensional deformation test method using a Sentmanat Extensional Rheometer (SER) fixture inside a Dynamic Shear Rheometer (DSR) is developed in this study to investigate the degradation of the polymer due to aging and to investigate the effect of modifier type. A relationship between different percentages of modifier and ductility of the modified binder is also investigated. The sample geometrics used in this study are 1 mm 0.72 mm and 3 mm 0.72 mm. A total of one hundred and ...
Use Of Rice Hull Ash (Rha) As A Sustainable Source Of Construction Material, 2018 Arkansas State University
Use Of Rice Hull Ash (Rha) As A Sustainable Source Of Construction Material, Zahid Hossain, Ashraf Elsayed
Corresponding data set for Tran-SET Project No. 17CASU02. Abstract of the final report is stated below for reference:
"With the imminent shortage of natural resources, the need to find sustainable development is the highest in recent history. Therefore, this study examines the potential uses of Rice Hull Ash (RHA) as a sustainable cementitious material (SCM) in preparation of concrete. This study also assesses the use of RHA as an alternative of commonly used polymers in preparing high-grade asphalt binders. RHA is a potential sustainable solution because it is currently being treated as an agricultural waste material, yet its high silica ...
Bridge Deck Overlays Using Ultra-High Performance Concrete, 2018 New Mexico State University
Bridge Deck Overlays Using Ultra-High Performance Concrete, Craig Newtson, Brad Weldon
Corresponding data set for Tran-SET Project No. 17CNMS01. Abstract of the final report is stated below for reference:
"This study investigated the use of a locally produced ultra-high performance concrete (UHPC) as an alternative to typical overlay materials. Several bond strength tests including slant-shear, splitting tension, and direct tension tests were performed to assess the bond strength between UHPC and normal strength concrete (NSC) substrate with varying surface textures. Tests were also conducted to assess the early-age and longer-term shrinkage behavior and coefficient of thermal expansion of the UHPC as well as rapid chloride permeability testing. Good bond between UHPC ...
Modeling Sulfate Attack In Modern Concrete For Building Sustainable And Resilient Infrastructure, 2018 Texas A & M University
Modeling Sulfate Attack In Modern Concrete For Building Sustainable And Resilient Infrastructure, Zachary Grasley
Corresponding data set for Tran-SET Project No. 17CTAM01 . Abstract of the final report is stated below for reference:
"External sulfate attack is a complex phenomenon and is manifested in the form of large expansion, cracking, and spalling depending on the exposure solution and material constituent properties. Several models were developed in the past to demonstrate sulfate attack mechanisms that account for the diffusion of sulfate ions into the porous concrete and the successive deformation triggered by the chemical reaction and precipitation of expansive agents. However, none of these models accounts for the effect of the migration of solvent water from ...