Engineering Commons^™

An Introduction To Automated Flagging Devices, David Boruff, David Jones

Purdue Road School

This presentation discusses the 2011 Indiana MUTCD and the use of automated flagging devices in Indiana.

Best Practices For Bridge Deck Overlays, Tommy E. Nantung, Robert J. Frosch

Purdue Road School

This presentation discusses recent research regarding alternative bridge deck overlay methods and best practices associated with their use.

Implementation Of Ada Data Collection To An Active Transition Plan, Stephen G. Metzer Aicp, Pws

Purdue Road School

Collection of right-of-way (ROW) data for curb ramps and sidewalks to determine compliance with the Americans with Disabilities Act (ADA) can be a time consuming and labor intensive effort. To further complicate this, management and interpretation of the data, once collected, is an effort itself. This presentation will provide an example of how data was collected by DLZ Indiana, LLC for the City of Mishawaka. DLZ surveyed nearly 3,000 curb ramps and 250 miles of sidewalks in 2012 using Apple iPads and various software to manage the data. This presentation will document the parameters measured for curb ramps and sidewalks, …

Designing Near Utilities, Richard A. Miller Jr, Mike Seals, Tom Rueshhoff

Purdue Road School

This session provides guidelines for designing near water and gas facilities. Utility company representatives will provide their perspective on the most critical issues.

Technical Assistance For Ada Access Plans For Towns With Fewer Than 50 Employees, Jay Dumontelle

Purdue Road School

This session provides information as to how smaller LPAs can create a simple access plan that will assist them in removing identified barriers over time.

Transition Plans: A Closer Look, David Meihls, Keri L. Grubb, Amy Moore

Purdue Road School

Transition Plans are only a part of what is required under the ADA. We will look closer at the entire process that surrounds the Transition Plan and the Transition Plan itself. This session will briefly discuss the Americans with Disabilities Act (ADA), the applicable Titles, and its relationship to other laws. We will cover the Administrative requirements and the Self- Evaluation of programs, services, and activities, which precede the Transition Plan. We will learn the basics of a Transition Plan, understand who it applies to, and provide an understanding of the required elements of a Transition Plan.

Indiana Ltap Road Scholar Core Course #10 Culvert Drainage, Thomas Burke, Megan Elberts, Bill Enslen

Purdue Road School

Legal aspects and drainage laws are discussed as well as basic hydrology, structure types, and hydraulic design and sizing.

Advanced Pavement Evaluation & Design Methods, Chuck Gemayel, Mike Maurovich

Purdue Road School

Fiscal constraints can limit the analysis that can be done prior to pavement design. The falling weight deflectometer offers a fast and cost effective solution to obtaining information to assist in these processes. This presentation discusses its use and inputs into the new Mechanistic-Empirical Pavement Design Guide Darwin-ME software adopted by INDOT.

Process To Improve Work Zone Progression, Pat Mccarty

Purdue Road School

INDOT performs regular construction and maintenance work zone audits. This presentation will provide an overview of the findings from reviews in 2012.

Mechanistic-Empirical Pavement Design, Chuck Gemayel, Mike Maurovich

Purdue Road School

Fiscal constraints can limit the analysis that can be done prior to pavement design. The falling weight deflectometer offers a fast and cost effective solution to obtaining information to assist in these processes. This presentation discusses its use and inputs into the new Mechanistic-Empirical Pavement Design Guide Darwin-ME software adopted by INDOT.

2040 Metropolitan Transportation Plan:Tippecanoe County Red Flag Analysis, Anna Burman

Purdue Road School

Early project-level environmental analysis can save time and money. A Red Flag Analysis reveals possible environmental issues prior to the start of the design process and adds greater certainty to the design and budgeting process. The analysis can be done as part of the long-range transportation plan or at the pre-design project level.

Louisville-Southern Indiana Ohio River Bridges Project, Cindy M. Kowalski

Purdue Road School

This session provides an overview of best practices for utility coordination. A case study of the processes used on the Ohio River Bridges will be discussed.

Incident Management, And Work Zone Patrols, Kimberly Peters, Pat Mccarty

Purdue Road School

This presentation discusses work zone patrols and incident management, and then provide information on recent action to reduce delay, and improve work zone progression.

Effects Of Forming Gas Anneal On Ultrathin Ingaas Nanowire Metal-Oxide-Semiconductor Field-Effect Transistors, Mengwei Si, Jiangjiang Gu, Xinwei Wang, Jiayi Shao, Xuefei Li, Michael J. Manfra, Roy G. Gordon, Peide D. Ye

Birck and NCN Publications

InGaAs gate-all-around metal-oxide-semiconductor field-effect transistors (MOSFETs) with 6 nm nanowire thickness have been experimentally demonstrated at sub-80 nm channel length. The effects of forming gas anneal (FGA) on the performance of these devices have been systematically studied. The 30min 400 degrees C FGA (4% H-2/96% N-2) is found to improve the quality of the Al2O3/InGaAs interface, resulting in a subthreshold slope reduction over 20mV/dec (from 117mV/dec in average to 93mV/dec). Moreover, the improvement of interface quality also has positive impact on the on-state device performance. A scaling metrics study has been carried out for FGA treated devices with channel lengths …

Laser Direct Writing Of Silicon Field Effect Transistor Sensors, Woongsik Nam, James I. Mitchell, Chookiat Tansarawiput, Minghao Qi, Xianfan Xu

Birck and NCN Publications

We demonstrate a single step technique to fabricate silicon wires for field effect transistor sensors. Boron-doped silicon wires are fabricated using laser direct writing in combination with chemical vapor deposition, which has the advantages of precise control of position, orientation, and length, and in situ doping. The silicon wires can be fabricated to have very rough surfaces by controlling laser operation parameters, and thus, have large surface areas, enabling high sensitivity for sensing. Highly sensitive pH sensing is demonstrated. We expect our method can be expanded to the fabrication of various sensing devices beyond chemical sensors. (C) 2013 American Institute …

Deuterium Uptake In Magnetic-Fusion Devices With Lithium-Conditioned Carbon Walls, P. S. Krstic, Jean Paul Allain, C. N. Taylor, J. Dadras, S. Maeda, K. Morokuma, J. Jakowski, A. Allouche, C. H. Skinner

Birck and NCN Publications

Lithium wall conditioning has lowered hydrogenic recycling and dramatically improved plasma performance in many magnetic-fusion devices. In this Letter, we report quantum-classical atomistic simulations and laboratory experiments that elucidate the roles of lithium and oxygen in the uptake of hydrogen in amorphous carbon. Surprisingly, we show that lithium creates a high oxygen concentration on a carbon surface when bombarded by deuterium. Furthermore, surface oxygen, rather than lithium, plays the key role in trapping hydrogen. DOI: 10.1103/PhysRevLett.110.105001

Thermal Transport In Sige Superlattice Thin Films And Nanowires: Effects Of Specimen And Periodic Lengths, Keng-Hua Lin, Alejandro Strachan

Birck and NCN Publications

We compute the thermal conductivity of superlattice (SL) thin films and nanowires for various SL periods and total specimen lengths using nonequilibrium molecular dynamics. Both types of materials exhibit similar behaviors with respect to SL period but the thermal conductivity of the thin films exhibits a significantly higher sensitivity to the specimen length. Notably, the thermal conductivity of SL thin films is smaller than those of the corresponding nanowires for specimen lengths below approximately 35 nm. These results arise from the complex dependence of the conductivities of the interfaces and the SL components on the specimen size and period. These …

A Computational Study Of The Thermoelectric Performance Of Ultrathin Bi2te3 Films, Jesse Maassen, Mark S. Lundstrom

Birck and NCN Publications

The ballistic thermoelectric performance of ultrathin films of Bi2Te3, ranging in thickness from 1 to 6 quintuple layers, is analyzed using density functional theory combined with the Landauer approach. Our results show that the thinnest film, corresponding to a single quintuple layer, has an intrinsic advantage originating from the particular shape of its valence band, leading to a large power factor and figure-of-merit exceeding bulk Bi2Te3. The interaction between the top and bottom topological surface states is key. The thinnest film yields a six-fold increase in power factor compared to bulk. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4794534]

Online Resource Aiding Students To Practice And Perfect Manufacturing Based Skills, Robert Martin Morris, Frank Dunne, Maurice Collins

Papers, presentations and other resources

As part of our teaching in the Departments of Fabrication and Transport Engineering in the Technological University Dublin we use industrial metal folding machines to help students to learn the sequencing of folds on manufactured sheet metal components. Many students have difficulty visualising the folding sequences required to complete practical manufacturing assignments. This paper details the digital media resource which was developed to provide students with the opportunity to offer a proposed solution to questions which relate to the folding sequence required for these components. Feedback is provided through the medium of pre recorded videos which show the component being …

Feedback Dynamics In The Academic And Industrial Environment, David Kennedy, Dermot Mcgarthy

Conference Papers

Feedback is essential in all companies, in society and in educational environments. We learn, improve and develop from it in our examinations, group work, work environment and relationships. Feedback however must be supported with good communications and be consistent. In the classroom environment this means providing feedback in a positive and supportive manner, and being consistent to all. Most if not all managers and leaders, including lecturers have not undertaken any form of training in feedback methods and therefore it is not translated effectively, causing stress or misguidance to students and colleagues. This paper highlights the importance of good feedback, …

Examining The Validity Of Using A Gaussian Schell-Model Source To Model The Scattering Of A Fully Coherent Gaussian Beam From A Rough Impedance Surface, Santasri Basu, Milo W. Hyde Iv, Salvatore J. Cusumano, Michael A. Marciniak, Steven T. Fiorino

Faculty Publications

Military applications that use adaptive optics (AO) often require a point source beacon at the target to measure and correct for wavefront aberrations introduced by atmospheric turbulence. However, turbulence prevents the formation of such a point beacon. The extended beacons that are created instead have finite spatial extents and exhibit varying degrees of spatial coherence. Modeling these extended beacons using a Gaussian Schell-model (GSM) form for the autocorrelation function would be a convenient approach due to the analytical tractability of Gaussian functions. We examine the validity of using such a model by evaluating the field scattered from a rough impedance …

Cpe 200: Small Bear Project, David Burke, Devin Tang

Computer Engineering

CPE 200 is an elective course designed for sophomores in the Computer Engineering Department. This project was intended to design the class, such that, students will understand the skills a computer engineer develops and how to apply those skills.

Design Of A Specimen Fixture For Impact Resistance Testing In An Instron Dynatup 8250 Drop Weight Impact Tester, Daniel Alejandro Barath

Aerospace Engineering

The purpose of this report is to outline the path and methods used to design a specimen fixture for the testing and analysis of fiber reinforced composites subjected to impact loading. This design is done in support of the California Polytechnic State University in San Luis Obispo Structures and Composites Laboratory. The design request was made at the request of Dr. Eltahry Elghandour to support the graduate students Kodi A. Rider and Y. Vanessa Wood in their master’s degree thesis projects.

The design request involved the design of a specimen fixture compatible with the existing impact apparatus located in the …

Detachable Point Of Sale Material For Asparagus Shipper, Michael Thomas

Industrial Technology and Packaging

Gourmet Trading Company is a fresh fruit and vegetable distributor specializing in asparagus, blueberries, and blackberries. The company currently mails a 7” by 11” sign to be displayed with their asparagus which arrives in a 28 pound shipper. The signs are intended to be displayed in stores to give consumers information about the asparagus. Unfortunately, many of the signs do not get displayed since they are shipped separately. The purpose of the project is to redesign the 28 pound asparagus shipper to include a detachable point of sale sign.

A literature search was conducted to further understand the needs of …

A Software Tool For The Design Of Critical Robot Missions With Performance Guarantees, Damian M. Lyons, Ronald C. Arkin, Paramesh Nirmal, Shu Jiang, Tsung-Ming Liu

Faculty Publications

Deploying a robot as part of a counter-weapons of mass destruction mission demands that the robotic software operates with high assurance. A unique feature of robotic software development is the need to perform predictably in a physical environment that may only be poorly characterized in advance. In this paper, we present an approach to building high assurance software for robot missions carried out in uncertain environments. The software development framework and the verification algorithm, VIPARS, are described in detail. Results are presented for missions including motion and sensing uncertainty, interaction with obstacles, and the use of sensors to guide behavior.

Application Of Assignment Problem Theory To Cal Poly's Week Of Welcome Program Presentation Schedule, Kevin T. Aban

Industrial and Manufacturing Engineering

The Week of Welcome (WOW) is a part of Cal Poly’s Orientation Programs. One of the main objectives of WOW is to provide content to new students on a variety of different topics in the form of Awareness Presentations. The problem being addressed in this paper is that of assigning the orientation groups of incoming students to these Awareness Presentations so that they have a schedule that meets all of the necessary criteria. The most important of those requirements is schedule balance and flexibility for future use. This scheduling problem is solved through the use of operations research and binary …

Gyroscope Assembly Process Improvement Analysis, Ian Douglass, Juan Ulises Saucedo

Industrial and Manufacturing Engineering

The gyro is a fundamental portion of many assemblies that Company S, a directional drilling company, manufactures. The gyro assembly is a highly sensitive and complex process, and it was paramount to establish efficiency and quality guidelines to base management decisions. The first guideline succeeded by increasing throughput by means of a simulation using ProModel. Next, non-value and value added activities were identified through a value stream map. Lastly, a database was developed in order to capture high integrity quality control data, or key performance indicators, such as, throughput, first-pass inspection yields at every test performed, and defects found. This …

Implementation Of A Sustainable Project Management Methodology For Cal Poly Sae Baja, Theo Graziadei

Industrial and Manufacturing Engineering

A lack of project organization manifested through unclear team goals, rush deliveries of materials, lost tools and materials, half days of effort due to improper planning, wasted design time, missed submission dates, lack of clear job positions at competition, and low competition scores. A process was created to properly manage the team and it was implemented through the use of various templates, examples, and calculation programs. Each deliverable received feedback from this project’s stakeholders and changes were reflected in the final process. The results were as follows:

Table 1: Summary of Results

Implement a sustainable project management methodology

Each step …

The Design, Testing, And Manufacturing Of A Pin Fin Extrusion Heat Sink, Arash Michael Mira

Industrial and Manufacturing Engineering

My senior project focuses on the design, testing, and manufacturing of pin fin extrusion heat sinks that are you used to cool simple electronic applications across a multitude of markets. Without the modern day heat sink, electronics that we have become familiar with throughout our everyday lives will cease to exist. I will design these heat sinks using Solid Works 3D CAD. I will then test the heat sinks using ICEPAK CFD software, where I will model the heat sink against a 5 watt application, inside of a cabinet that models the chassis of a computer. After receiving these results, …

The Effects Of Physical Activity On Greenhouse Gas Emissions For Common Transport Modes In European Countries, Aidan Duffy, Robert Crawford

Articles

This paper applies a life cycle methodology to estimate activity-related contributions of transport modes to GHG emissions. The methodology uses national input-output tables, environmental accounts, household budget data and nutritional data to derive food-sector GHG coefficients of consumption for ten European countries. The food energy requirements for each mode of transport are estimated taking account of the modal activity level and energy requirements. Walking, cycling, driving and bus travel are considered. Typical national food energy-related emissions for walking, cycling, and driving ranged from 25.6 - 77.3 gCO2-eq/pass.km, 10.4 - 31.4 gCO2-eq/pass.km and 1.7 - 5.2 gCO2-eq/pass.km; passenger transport was found …