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Articles 961 - 990 of 6327
Full-Text Articles in Engineering
What Utilities Wish We Knew: Focusing On Communications & Electric Facilities, Joe Kline, Natalie Parks, Ted Foster
What Utilities Wish We Knew: Focusing On Communications & Electric Facilities, Joe Kline, Natalie Parks, Ted Foster
Purdue Road School
Nearly every project has electric and communications facilities within the project limits. In this session utility representatives discuss what designers should know for successful utility coordination.
Past, Present, And Future Of Priced Managed Lanes, Ganapathi Badireddi, Ron Davis
Past, Present, And Future Of Priced Managed Lanes, Ganapathi Badireddi, Ron Davis
Purdue Road School
Using various maps and graphs, this presentation will detail the significant growth in the U.S. priced managed lane sector in terms of mileage, locations, and toll revenue. The location of priced managed lanes currently under construction will also be included to show anticipated growth over the next several years. Some emerging trends and considerations for the future will be discussed based on involve-ment in recent studies of priced managed lanes around the country.
Alternate Methods For Preserving Asphalt Pavements, Jeff Beeler
Alternate Methods For Preserving Asphalt Pavements, Jeff Beeler
Purdue Road School
Come hear how the city of Warsaw, Indiana, uses a “mix of fixes” to economically extend the life cycle of its road network while maintaining a safe and politically friendly high pavement condition index (PCI) number. The mixes include rejuvenation, slurry, micro, and crack sealing.
Indot Einvoice Application For Consultant Contracts, Jeff Clanton, Dale Carter
Indot Einvoice Application For Consultant Contracts, Jeff Clanton, Dale Carter
Purdue Road School
In 2016, INDOT began the implementation of an electronic consultant invoicing application with nine pilot firms. In March of 2018, the application was rolled out for use with most new consultant contracts. Approximately 2,500 invoices were processed through eInvoice in FY 2019, and INDOT is working on an enhancement retrofit for implementation on earlier contracts. In this session INDOT representatives will review the purpose and features of the application as well as planned future enhancements.
Aging Urban Corridors: Big Challenges, Big Rewards, Carl Camacho, Erin Wenger, David Borden
Aging Urban Corridors: Big Challenges, Big Rewards, Carl Camacho, Erin Wenger, David Borden
Purdue Road School
When revitalizing aging urban streets, an early, in-depth investigation holds the keys to success. Property ownership documents are gener-ations old. Utility records are often nonexis-tent. Century-old underground infrastructure must be located and evaluated. The up-front, fact-finding work is more critical, there’s more of it, and it’s more valuable to the end result. Find out how we set the stage for improving a section of US 40, the “First Highway in America,” that runs through Indianapolis.
Indot Intelligent Road Design And Construction Using 3d Models, Derek Fuller, Andrew Pangallo, Timothy Haney
Indot Intelligent Road Design And Construction Using 3d Models, Derek Fuller, Andrew Pangallo, Timothy Haney
Purdue Road School
This presentation provides an update on INDOT’s e-construction and Intelligent Design and Construction initiatives. This will include a discussion of INDOT’s efforts over the past year to move toward 3D CAD models for roadway design, advancements in digital/electronic construction inspection including further development and refining of inspection checklists, continued development and testing of a mobile inspection application, and demonstration projects for e-ticketing of HMA materials delivery.
Trends And Advances In Geosynthetic Interlayers, Mark Marienfeld
Trends And Advances In Geosynthetic Interlayers, Mark Marienfeld
Purdue Road School
Geosynthetic pavement interlayers for asphalt pavement have been used for over 50 years. They have been improved to resolve millability, recyclability, and pavement performance concerns when millings with interlayer pieces are used in a new mix design. This presentation will summarize third-party testing for new geosynthetic interlayers and their performance improvements during milling and recycling of asphalt pavements. It will also highlight pavement performance when millings of the interlayer are used in a new mix design.
The Cost Of Nepa, Kenneth Mcmullen, Steve Walls, Joseph Dabkowski
The Cost Of Nepa, Kenneth Mcmullen, Steve Walls, Joseph Dabkowski
Purdue Road School
In this session we will discuss how the National Environmental Policy Act does or does not affect a project’s bottom line. NEPA costs by project/NEPA document type will be presented, followed by a group discussion with a panel of at least one INDOT NEPA practitioner, one NEPA consultant, and one INDOT consultant services manager. The session will conclude with an open discussion for project managers, consultants, designers, and other stakeholders about costs, ways to move forward, and working toward a better understanding of environmental costs, schedule constraints, and various other issues
Update On Partial Depth Patching Techniques For Concrete Pavement, Mike Nelson
Update On Partial Depth Patching Techniques For Concrete Pavement, Mike Nelson
Purdue Road School
INDOT has let and constructed numerous projects over the past 2 years utilizing signifi-cantly revised partial-depth patching tech-niques. This presentation will provide an update regarding the construction and performance of new practices.
Indot Dnr Maintenance Memorandum, Sandra Bowman, Frank Sailer
Indot Dnr Maintenance Memorandum, Sandra Bowman, Frank Sailer
Purdue Road School
On March 13, 1997, INDOT and the Department of Natural Resources signed a memorandum of understanding that exempted specified main-tenance activities from the Flood Control and Navigable Waterways Act. There has been much confusion and many interpretation variances in the interim. INDOT has been working with the DNR to update the MOU to provide clarity to areas of conflicting interpretation. Join us for a discussion.
Application Of Geosynthetic Paving Fabric Interlayer In I-65, Kumar P. Dave
Application Of Geosynthetic Paving Fabric Interlayer In I-65, Kumar P. Dave
Purdue Road School
INDOT recently used a geosynthetic paving fabric interlayer for the first time, on I-65, to retard reflective cracking and as a pavement moisture barrier. The nonwoven fabric interlayer used is both millable and recyclable. This tech-nical presentation will provide insight into the use of paving fabric interlayer as a cost-effective, innovative tool for pavement rehabilitation.
Geosynthetic Interlayer Functions And I-65 Installation, Mark Marienfeld
Geosynthetic Interlayer Functions And I-65 Installation, Mark Marienfeld
Purdue Road School
INDOT recently used a geosynthetic paving fabric interlayer for the first time, on I-65, to retard reflective cracking and as a pavement moisture barrier. The nonwoven fabric interlayer used is both millable and recyclable. This technical presentation will provide insight into the use of paving fabric interlayer as a cost-effective, innovative tool for pavement rehabilitation.
City Of Elkhart - Ada Data Collection And Transition Plan Implementation, Jeffrey Schaffer, Rachel Page
City Of Elkhart - Ada Data Collection And Transition Plan Implementation, Jeffrey Schaffer, Rachel Page
Purdue Road School
Over a 5-year period, the City of Elkhart col-lected detailed data on nearly 4,000 curb ramps. The City is now using that data to plan and fund ADA improvements within the public right-of-way. This presentation will discuss how to look at an overwhelming task such as ADA compli-ance in the right-of-way and develop a plan to manage it.
Erms Best Practices: Don't Stumble Across The Finish Line, Heather Johnson, George Watson
Erms Best Practices: Don't Stumble Across The Finish Line, Heather Johnson, George Watson
Purdue Road School
Join us for a discussion of the best practices for design uploads and the upcoming changes in the next version of Electronic Records Management System (ERMS).
A Methodology For Incorporating The Effect Of Grain Size On The Energy Efficiency Coefficient For Fatigue Crack Initiation Estimation In Polycrystalline Metal, Chun-Yu Ou, Rohit Voothaluru, C. Richard Liu
A Methodology For Incorporating The Effect Of Grain Size On The Energy Efficiency Coefficient For Fatigue Crack Initiation Estimation In Polycrystalline Metal, Chun-Yu Ou, Rohit Voothaluru, C. Richard Liu
Purdue University Libraries Open Access Publishing Fund
Estimating fatigue crack initiation of applied loading is challenging due to the large number of individual entities within a microstructure that could affect the accumulation of dislocations. In order to improve the prediction accuracy of fatigue crack initiation models, it is essential to accurately compute the energy dissipated into the microstructure per fatigue loading cycle. The extent of the energy dissipated within the microstructure as a fraction of the overall energy imparted by loading has previously been defined as the ‘energy efficiency coefficient’. This work studied the energy efficiency coefficient as a factor in the measurement of accumulated plastic strain …
John Houbolt: The Unsung Hero Of The Apollo Moon Landings, William F. Causey
John Houbolt: The Unsung Hero Of The Apollo Moon Landings, William F. Causey
Purdue University Press Book Previews
In May 1961, President Kennedy announced that the United States would attempt to land a man on the moon and return him safely to the earth before the end of that decade. Yet NASA did not have a specific plan for how to accomplish that goal. Over the next fourteen months, NASA vigorously debated several options. At first the consensus was to send one big rocket with several astronauts to the moon, land and explore, and then take off and return the astronauts to earth in the same vehicle. Another idea involved launching several smaller Saturn V rockets into the …
Wireless Underground Communications In Sewer And Stormwater Overflow Monitoring: Radio Waves Through Soil And Asphalt Medium, Usman Raza, Abdul Salam
Wireless Underground Communications In Sewer And Stormwater Overflow Monitoring: Radio Waves Through Soil And Asphalt Medium, Usman Raza, Abdul Salam
Faculty Publications
Storm drains and sanitary sewers are prone to backups and overflows due to extra amount wastewater entering the pipes. To prevent that, it is imperative to efficiently monitor the urban underground infrastructure. The combination of sensors system and wireless underground communication system can be used to realize urban underground IoT applications, e.g., storm water and wastewater overflow monitoring systems. The aim of this article is to establish a feasibility of the use of wireless underground communications techniques, and wave propagation through the subsurface soil and asphalt layers, in an underground pavement system for storm water and sewer overflow monitoring application. …
Resilience To Flooding And Fluvial Erosion In A Changing Climate, Robert C. Barr, Siavash Beik
Resilience To Flooding And Fluvial Erosion In A Changing Climate, Robert C. Barr, Siavash Beik
Indiana Local Technical Assistance Program (LTAP) Conference Proceedings
No abstract provided.
Introduction To Hydrologic Modeling Using Wintr-20, Thomas T. Burke, Luke J. Sherry
Introduction To Hydrologic Modeling Using Wintr-20, Thomas T. Burke, Luke J. Sherry
Indiana Local Technical Assistance Program (LTAP) Conference Proceedings
No abstract provided.
The Iowa Watershed Approach, Kate Giannini
The Iowa Watershed Approach, Kate Giannini
Indiana Local Technical Assistance Program (LTAP) Conference Proceedings
No abstract provided.
Updated Bulletin 70 Rainfall, Christopher B. Burke
Updated Bulletin 70 Rainfall, Christopher B. Burke
Indiana Local Technical Assistance Program (LTAP) Conference Proceedings
No abstract provided.
Empirical Analysis Of Trends In Runway Incursions In The United States From 2001 To 2017, David C. Ison
Empirical Analysis Of Trends In Runway Incursions In The United States From 2001 To 2017, David C. Ison
Journal of Aviation Technology and Engineering
Runway incursions, events in which an aircraft, vehicle, or person is located on a runway surface without authorization, continue to be a constant threat to aviation safety. Previously identified on the ‘‘Most Wanted’’ list of aviation safety issues by the National Transportation Safety Board, the Federal Aviation Administration (FAA) has spent significant amounts of money and effort to address runway incursions. Little empirical evidence has been collected on the effectiveness of such efforts. Moreover, the data that are available provide a confusing landscape of contradicting findings. Some FAA publications claim that runway incursions are decreasing while the evidence provided in …
Congressional Committee Resources On Space Policy During The 115th Congress (2017-2018): Providing Context And Insight Into U.S. Government Space Policy, Bert Chapman
Libraries Faculty and Staff Scholarship and Research
Article 1 of the US Constitution assigns the US Congress numerous responsibilities. These include creating new laws, revising existing laws, funding government programs, and conducting oversight of these programs' performance. Oversight of US Government agency space policy programs is executed by various congressional space policy committees, including the House and Senate Science Committees, Armed Services, and Appropriations Committees. These committees conduct many public hearings on space policy which invite witnesses to testify on US space policy programs and feature debate on the strengths and weaknesses of these programs. Documentation produced by these committees is widely available to the public, except …
Assessing The Impact Of Ires On Researchers, Research Outcomes, And Students: A Case Study Approach, David B. Knight, Nicole Sanderlin, Kirsten A. Davis
Assessing The Impact Of Ires On Researchers, Research Outcomes, And Students: A Case Study Approach, David B. Knight, Nicole Sanderlin, Kirsten A. Davis
School of Engineering Education Faculty Publications
IRES programs seek to develop globally connected future researchers while also facilitating broader long-term collaborations between U.S.-based and international research groups. Faculty and student exchanges are expected to result in international linkages between the researchers that bring new insights and methods to U.S.-based research projects, leading to transformative research. In this project, we conducted a comprehensive evaluation of IRES programs through a case study analysis. The nine selected cases focused specifically on engineering-focused IRES experiences for ease of comparison. Case studies included interviews with all U.S. PI’s, a selection of additional international and U.S. faculty researchers, and select student alumni …
Reconsideration Of Energy Balance In Jiles–Atherton Model For Accurate Prediction Of B–H Trajectories In Ferrites, Harshita Singh, Scott D. Sudhoff
Reconsideration Of Energy Balance In Jiles–Atherton Model For Accurate Prediction Of B–H Trajectories In Ferrites, Harshita Singh, Scott D. Sudhoff
Department of Electrical and Computer Engineering Faculty Publications
In this article, the energy balance equation in the original Jiles-Atherton model is revisited. In particular, the assumption that the energy stored in a lossy material is equal to that stored in a lossless material is removed. This modification results in more accurate prediction of B -H trajectories. A new approach to characterize material parameters based on resonant response is also set forth. Extensive experimental validation is provided and model parameters for several common materials are given.
Non-Linear Non-Iterative Transient Inverse Conjugate Heat Transfer Method Applied To Microelectronics, David Gonzalez Cuadrado, Amy Marconnet, Guillermo Paniagua
Non-Linear Non-Iterative Transient Inverse Conjugate Heat Transfer Method Applied To Microelectronics, David Gonzalez Cuadrado, Amy Marconnet, Guillermo Paniagua
CTRC Research Publications
Solving for temperature profiles given boundary conditions, geometry, and material properties is rela- tively straightforward given the wealth of analytical and computational techniques available. However, experimentally we often measure temperatures and seek to understand unknown boundary conditions or material properties. This problem is generally ill-posed. Thus, to get the value of these input param- eters, we use inverse methods: knowing the output of the system ( i.e. , temperature), we can compute the value of the unknown parameters ( e.g. , thermal conductivity or heat fluxes). In microelectronics, the location and magnitude of the boundary conditions including local heat generation …
Internet Of Things For Environmental Sustainability And Climate Change, Abdul Salam
Internet Of Things For Environmental Sustainability And Climate Change, Abdul Salam
Faculty Publications
Our world is vulnerable to climate change risks such as glacier retreat, rising temperatures, more variable and intense weather events (e.g., floods, droughts, and frosts), deteriorating mountain ecosystems, soil degradation, and increasing water scarcity. However, there are big gaps in our understanding of changes in regional climate and how these changes will impact human and natural systems, making it difficult to anticipate, plan, and adapt to the coming changes. The IoT paradigm in this area can enhance our understanding of regional climate by using technology solutions, while providing the dynamic climate elements based on integrated environmental sensing and communications that …
Design Of Subsurface Phased Array Antennas For Digital Agriculture Application, Abdul Salam
Design Of Subsurface Phased Array Antennas For Digital Agriculture Application, Abdul Salam
Faculty Publications
With the advancement in subsurface communications technology, an overarching solution to a underground phased array antenna design for digital agriculture requires interdisciplinary research involving topics ranging from insights on the constitutive parameters of the soil medium and impact of soil moisture on the array factor to antenna measurements and subsurface communication system design. In this paper, based on the analysis of underground radio wave propagation in subsurface radio channel, a phased array antenna design is presented that uses water content information and beam steering mechanisms to improve efficiency and communication range of wireless underground communications. It is shown the subsurface …
Internet Of Things For Sustainable Community Development: Introduction And Overview, Abdul Salam
Internet Of Things For Sustainable Community Development: Introduction And Overview, Abdul Salam
Faculty Publications
The two-third of the city-dwelling world population by 2050 poses numerous global challenges in the infrastructure and natural resource management domains (e.g., water and food scarcity, increasing global temperatures, and energy issues). The IoT with integrated sensing and communication capabilities has the strong potential for the robust, sustainable, and informed resource management in the urban and rural communities. In this chapter, the vital concepts of sustainable community development are discussed. The IoT and sustainability interactions are explained with emphasis on Sustainable Development Goals (SDGs) and communication technologies. Moreover, IoT opportunities and challenges are discussed in the context of sustainable community …
Internet Of Things In Agricultural Innovation And Security, Abdul Salam
Internet Of Things In Agricultural Innovation And Security, Abdul Salam
Faculty Publications
The agricultural Internet of Things (Ag-IoT) paradigm has tremendous potential in transparent integration of underground soil sensing, farm machinery, and sensor-guided irrigation systems with the complex social network of growers, agronomists, crop consultants, and advisors. The aim of the IoT in agricultural innovation and security chapter is to present agricultural IoT research and paradigm to promote sustainable production of safe, healthy, and profitable crop and animal agricultural products. This chapter covers the IoT platform to test optimized management strategies, engage farmer and industry groups, and investigate new and traditional technology drivers that will enhance resilience of the farmers to the …