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Theses/Dissertations from 2017

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Safety analysis of interchange functional areas, Akinfolarin O. Abatan

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Data-driven algorithms for enhanced transportation infrastructure asset management, Ahmed Abdelaty

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Examining the safety performance of intersections on arterial roadways and near service ramp terminals, Timothy P. Barrette

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Effect of Particle Packing on Flow Property and Strength of Concrete Mortar, Wenjing Cai

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The use of lime sludge for soil stabilization, Haluk Sinan Coban

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Using soybean-derived materials to rejuvenate reclaimed asphalt pavement (RAP) binders and mixtures, Mohamed Elsayed Elkashef

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Semantics-based approach for generating partial views from linked life-cycle highway project data, Tuyen Thanh Le

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A study on the variability of pavement foundation properties, Jia Li

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Estimate freeway travel time reliability under recurring and nonrecurring congestion, Chaoru Lu

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Performance-based design prodedure for a novel semi-active cladding connection applied to blast mitigation, Sijia Lu

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Flow and transport from a stream to a well in an unconfined aquifer, Cynthia Louise Maroney

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Seismic design study of concentrically braced frames with and without buckling-controlled braces, Seyedbabak Momenzadeh

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Effectiveness of median cable barrier in Iowa, Ellen E. Nightingale

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Bridge design efforts and cost estimation models for PPCB bridge projects, Tejas Ostwal

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Acceleration of bridge construction with prolonged service life, Anmol Mohiniraj Pakhale

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Design and structural testing of tall Hexcrete wind turbine towers, Robert Peggar

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Comprehensive partnering management model for highway construction projects delivered using traditional and alternative methods, Milagros Del Carmen Pinto Nunez

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Examining the safety performance of urban/suburban arterials and freeway segments in consideration of roadway geometry and traffic control, Emira Rista

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Improved predictions of contaminant transport in rivers, Rusen Sinir

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Estimating longitudinal dispersion coefficients in natural channels, Yuqi Song

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Development and calibration of discrete element method inputs to mechanical responses of granular materials, Zamir Imtiyaz Syed

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Linear scheduling and procurement tools to manage geotechnical risk in design-build construction projects, Ricardo M. Tapia

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Examining corridor-level crash rates in consideration of access point density and spacing, Iftin Thompson

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Development of a framework to compare the cost-effectiveness of traffic crash countermeasures, Patricia Anne Thompson

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Comparison of design/analysis methods for pile reinforced slopes, Yuderka Trinidad Gonzalez

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Installation guidance for centerline and edgeline rumble strips in narrow pavements, Bijan Vafaei

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Effects of nanoparticles on the properties of cement-based materials, Xin Wang

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Development of a multifunctional photovoltaic integrated insulated concrete sandwich panel, Mostafa Yossef

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Mixed methods assessment of project-based learning in a senior-level highway design course, Steven Kurtis Younkin

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Efficacy of a trickling system for ammonia, particulate matter, and odor removal from livestock production buildings, Yatong Zeng

Theses/Dissertations from 2016

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A framework for value for money assessment on public private partnership mega-projects, Philip J. Barutha

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The Central Iowa Expo site pavement foundation stabilization and paving project: an investigation into the influence of pavement foundation stiffness on pavement design, construction, and performance, Peter Jacob Becker

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High rate anaerobic digestion of primary and secondary sludge using the static granular bed reactor (SGBR), Tyler J. Biese

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Characterization of novel variable friction device and development of data driven controller in intelligent semi-active control system for multi-hazard mitigation capabilities, Liang Cao

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Geotechnical risk decision tools for alternative project delivery method selection, Ivan Gilberto Castro-Nova

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Lifetime performance prediction of reinforced concrete structures in multi-threat areas, Zhen Cui

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Early-stage techno-economic analysis of renewable diesel production via hydrothermal liquefaction of filamentous fungi, Kowshik Viswanath Moorthy Eggoni

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Civil integrated management and the implementation of CIM-related technologies in the transportation industry, Fangyu Guo

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The interrelationships between speed limits, geometry, and driver behavior: a proof-of-concept study utilizing naturalistic driving data, Raha Hamzeie

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Engineering leadership: important themes identified by recruiters of entry-level engineers, Beth Lin Hartmann

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Improving performance and sustainability of unpaved roads: Stabilization and testing, Cheng Li

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Compaction Quality Assessment and Soil-cement Stabilization for Iowa Embankment Construction, Shengting Li

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Seismic performance of unbonded post-tensioned precast wall systems subjected to shake table testing, Maryam Nazari

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Seismic performance of unbonded post-tensioned precast wall systems subjected to shake table testing, Maryam Nazari

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Safety performance measures of bridges on county roads in Iowa, Emmanuel C. Nketah Jr

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Design administration in DB projects, Rande Nicole Patterson

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Acceleration of percolation for cementitious sensors using conductive paint filler, Irvin Jude Joseph Pinto

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Performance evaluation of continuity connections for use in modular construction, Andrew J. Putz

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Strength, durability, and application of grouted couplers for integral abutments in accelerated bridge construction projects, Samuel Carey Redd

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Determining optimum speed limit reduction in freeway work zones, Sneha Roy

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Indefinite Delivery/Indefinite Quantity project selection framework using stochastic techniques, Jorge Andres Rueda Benavides

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Ability of an acoustic Doppler current profiler to measure turbulence and mixing, Lauren Elise Schwab

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BIM Framework for Energy and Maintenance Performance Assessment for Facility Management, Firas Adnan Al Shalabi

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Data analytics and visualization for enhanced highway construction cost indexes and as-built schedules, Krishna Prasad Shrestha

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Rheological and physical characteristics of bio-derived block co-polymers for adhesive applications, Zahra Sotoodeh Nia

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Pilot-scale continuous-flow hydrothermal liquefaction of filamentous fungi cultivated in thin stillage, Andrew R. Suesse

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Determination of stiffness reduction factor for U-shaped reinforced concrete shear walls under bi-axial loading, Sai Krishna Yemmaleni

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Assessing Seasonal Performance, Stiffness, and Support Conditions of Pavement Foundations, Yang Zhang

Theses/Dissertations from 2015

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Quantifying road roughness: multiresolution and near real-time analysis, Ahmad Abdulraheem Alhasan

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Assessing the energy and financial viability of heated pavement systems for airports, Pritha Anand

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Performance-based design of reinforced concrete bridge piers subjected to vehicle collisions, Steven Joseph AuYeung

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Assessment of embankment construction QC/QA procedures in Iowa, Chao Chen

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Rheological performance evaluation of asphalt modified with bio-based polymers, Conglin Chen

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Seismic performance of accelerated bridge construction (ABC) precast bulb-tee girder-to-bent cap connection, Zhao Cheng

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A framework for estimating preconstruction service costs at the functional level for highway construction projects, Emily K. Craigie

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Applying artificial neural networks to top-down construction cost estimating of highway projects at the conceptual stage, Brendon Joseph Gardner

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Improving the prediction of time-dependent effects on prestressed concrete bridges, Ebadollah Honarvar Gheitanbaf

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Safety evaluation of roadway segments provided with Safety Edge in Iowa, Amrita Goswamy

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Engineering properties of saturated and biogas desaturated sand, Seth Hansen

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The effects of intersection collision warning systems on gap selection and stopping characteristics, Mitchell Lee Holtzman

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An investigation of freeway standstill distance, headway, and time gap data in heterogeneous traffic in Iowa, Andrew Jeremy Houchin

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Nondestructive field assessment of flexible pavement and foundation layers, Jinhui Hu

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Spatiotemporal visualization of unit prices of major cost items of transportation projects across Iowa using geographic information systems (GIS), Deepanshi Jain

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An investigation of railroad-highway grade crossing consolidation rating in Iowa, Patrick Michael Johnson

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Investigation of AASHTOWare Pavement ME Design/Darwin-ME™ Performance Prediction Models for Iowa Pavement Analysis and Design, Orhan Kaya

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Permeability and lateral earth pressure in granular backfill against bridge abutments, Lance David Keltner

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Live load distribution factors for multi-span girder bridges with plank decking subjected to farm vehicles, Chandra Teja Kilaru

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Confined concrete behavior in hollow columns, Xiao Liang

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2D measurements of turbulence & mixing driven by internal waves impinging on a slope, Zhimin Li

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Advancements in evaluation of air-coupled impact-echo test method, Ji Lu

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Usage of recycled asphalt pavement on Minnesota gravel roads: performance evaluation and analysis, Sunny Suresh Mahajan

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Optimizing the value of soil compaction testing quality assurance and control using stochastic life cycle cost, comparative and statistical analysis, Kevin Wade McLain

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Improvements in non-aseptic methods for fungal cultivation on corn-ethanol thin stillage and continuous hydrothermal liquefaction of fungal biomass feedstock, Jeremiah John McMahon

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Validation of Ndesign in Iowa, Marie Grace Joson Mercado

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Develop a social return on investment framework for Iowa rural bridge transportation asset management, Maria Catalina Miller

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Comprehensive study on the sustainable technology of asphalt rubber for hot mix asphalt binders and mixes, Ka Lai Nieve Ng Puga

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Development of rural curve driving models using lateral placement and prediction of lane departures using the SHRP 2 naturalistic driving data, Nicole Lynn Oneyear

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Laboratory evaluation of freezing-thawing resistance of aggregate for concrete pavement using Iowa Pore Index Tests, Jiaxi Ren

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Guidance on the application of cable median barrier: tradeoffs between crash frequency, crash severity, and agency costs, Brendan James Russo

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Highly scalable bio-inspired soft elastomeric capacitor for structural health monitoring applications, Hussam Suhail Saleem

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Life cycle assessment of heated airfield pavement system for snow removal, Weibin Shen

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Oxidation of 2,4-D using iron activated persulfate and peroxymonosulfate, Guyu Shi

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Effect of beam strength on seismic performance of two-story X-braced frames, Pinar Toru Seker

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Modeling drivers’ naturalistic driving behavior on rural two-lane curves, Bo Wang

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Pavement albedo assessment: methods, aspects, and implication, Shengyang Wang

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Differential diffusion and salt finger fluxes in a stratified turbulent laboratory system, Ian Paul Willard

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Mitigation of liquefaction hazards using the combined biodesaturation and bioclogging method, Shifan Wu

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Performance of bio-based soil stabilizers in transportation earthworks-laboratory investigations, Bo Yang

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Development of holding strategies for deteriorated low-volume roads and evaluation of performance of Iowa test sections, Jianhua Yu

Theses/Dissertations from 2014

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Conceptual level life-cycle cost analysis algorithm for low volume bridges, Rinita Anand