Engineering Commons^™

Synthesis Of Functionalized Peek Analogues Via “One-Pot” Synthesis, Zachary B. Ewing, Eric A. Fossum

Celebration of Undergraduate & Graduate Research, Scholarship, and Creative Activities Materials

Poly(arylene ether)s, PAEs

• High performance engineering thermoplastic materials

• Excellent mechanical properties and thermal stability

• Resistant to hydrolysis and oxidation

• Many prepared via nucleophilic aromatic substitution (NAS)

• Electron withdrawing groups (EWG) typically in para positions

• PAEs can also be synthesized with an EWG in the meta positions, creating easily functionalized systems, with no change in the backbone

Investigating The After-Effects Of Stochastic Resonance For Use In Laparoscopic Surgery, Muhammad S. Hamdan, Caroline G. L. Cao

Celebration of Undergraduate & Graduate Research, Scholarship, and Creative Activities Materials

Laparoscopic surgery is a modern surgical technique in which surgeons insert tools through small incisions in the abdomen to perform a surgical procedure.

City360: Visualizing Multimodal City Events For Decision Support, Vaikunth Sridharan, Tanvi Banerjee, Pramod Anantharam, Archana Sheshadri, Roopteja Muppalla, Amit P. Sheth, Krishnaprasad Thirunarayan

Celebration of Undergraduate & Graduate Research, Scholarship, and Creative Activities Materials

Cities are increasingly outfitted with sensors for monitoring various conditions such as traffic, weather, air quality, and infrastructure related issues. Such well outfitted cities are generating massive amounts of multi-modal data leading to daunting challenges in assimilating, visualizing, and making sense of this data by city authorities and citizens. We propose City360 to address these challenges and provide decision support to city authorities and citizens. We demonstrate the utility of our system through concrete use cases for San Francisco Bay area that utilize heterogeneous data from various open city data sources.

Corrosion Of Rebar Under Carbonation And Salt Environment, Wei-Chung Yeih, Jiang-Jhy Chang, Yu-Ping Huang, Ran Huang

Journal of Marine Science and Technology–Taiwan

In this study, the behavior of reinforced concrete under carbonation and in a salt environment was investigated. Three types of cements- Type I cement, Type II cement and highalumina cement (HAC) - were used to study the influence of cement on reinforced concrete behavior. To simulate chloridecontaminated concrete, 1% NaCl (by cement weight) was added to some groups of specimens. Results revealed that the carbonation released chloride ions from Friedel's salt, which increased the chloride content near the carbonation front. The carbonation rate of HAC concrete was higher than that of Type I and Type II cement concrete. The corrosion …

Effect Of Battery Energy Storage Systems On The Value Of An Intermittent Wind Energy Source In Isolated Systems, Chun-Lung Chen

Journal of Marine Science and Technology–Taiwan

The increase in environmental protection awareness and the progressive exhaustion of conventional fossil energy sources have increased interests in integrating wind energy sources into existing power systems. Despite the various benefits of wind power, the intermittency and unpredictability of wind power generation cause operational concerns and waste usable capacity as the installation of the wind generation sources increases. To enhance the value of an intermittent wind energy source by using a battery energy storage system (BESS), an iterative algorithm that combines improved dynamic programming and a hybrid direct search method were developed for solving the optimal wind-thermal-battery coordination scheduling (WTBCS) …

Hydraulic System Design And Structural Analysis Of A Bop Gantry Crane, Hyun-Ji Kim, Gwi-Nam Kim, Chang-Kweon Jeong, Young-Hwan Yoon, Yong-Gil Jung, Sun-Chul Huh

Journal of Marine Science and Technology–Taiwan

A blowout preventer (BOP) gantry crane is an offshore plant that moves a BOP stack located on a drilling platform to a BOP trolley. However, such a plant has yet to be developed in Korea. Because BOP gantry cranes produced overseas are expensive, developing such cranes domestically is imperative. In this study, ANSYS was used to conduct a structural analysis on a BOP gantry crane model to simulate the roll and pitch motions of a drillship that were induced by waves and wind load as well as the weight of the crane. Moreover, Simulation X was used for implementing control-system …

Using Principal Component Analysis With A Back-Propagation Neural Network To Predict Industrial Building Construction Duration, Sou-Sen Leu, Chi-Min Liu

Journal of Marine Science and Technology–Taiwan

Industrial businesses must respond efficiently to market demands; therefore, industrial construction must accurately predict the project duration at the pre-investment stage. In practice, project duration predictions rely on the experience of project managers. To provide impartial expertise and quantitative estimate the predicted duration of constructing an industrial building, an extensive history of industrial building cases were collected to form a database. Principal component analysis was applied to the database to identify key factors to serve as input data for a back-propagation neural network (BP-NN) that was used to estimate the project duration. Three prediction models were identified and developed separately …

Carbonation Resistance Of Concrete With Mortar Coating, Wen-Hu Tsao, Ming-Te Liang, Nai-Ming Huang, Ke-Hung Liao

Journal of Marine Science and Technology–Taiwan

The principal purpose of this paper was theoretically to study the carbonation resistance of a semi-infinite medium which concrete has a mortar coating having diffusion properties different from those of the rest of the medium. The analytical solution of a semi-infinite composite medium was used to predict the time required for subsidence due to concrete with mortar coating. The inaccurate analytical solution was published in previous books. Thus, the analytical solution of a semi-infinite composite medium is re-derived in this article. The governing equations without initial and boundary conditions in the previous books are also pointed out. In order to …

Effect Of Cooling Rate During Solution Heat Treatment On The Microstructure And Mechanical Properties Of Sp-700 Titanium Alloys, Jo-Kuang Nieh, Chih-Ting Wu, Yen-Lin Chen, Chao-Nan Wei, Sheng-Long Lee

Journal of Marine Science and Technology–Taiwan

The relationship between the microstructures and the mechanical properties of solution-treated SP-700 titanium alloys, as obtained with different cooling rates, was investigated. The results indicate that the water-quenched alloy contains the primary  (p), ”-martensite and residual  (r) phases. Aging heat treatment can convert both ”-martensite and the r phases to the fine-grained  +  equilibrium phases, resulting in a significant increase in tensile strength and hardness. Both the air-cooled and furnace-cooled alloys consist of the p,  and  phases. The air-cooled alloy containing the fine-grained  phase has relatively higher hardness. Aging heat treatment causes only …

Side Friction Of Drilled Piles In Cobble Layers, Tien-Kuen Huang, Chih-Yi Yang

Journal of Marine Science and Technology–Taiwan

Full scale vertical load tests have been carried out on drilled piles in cobble layers to evaluate side friction capacity. In the finite element analysis, firstly the property of pile is assumed linear elastic and the elastic-plastic Mohr-Coulomb model is used for the cobble layer. Interface elements are introduced to model interface interaction between pile and cobble layer. The measured data obtained from the field tests are compared with the finite element simulation results using PLAXIS 2D. It shows reasonable agreement between field test data and simulation results. A preliminary evaluation of side friction of drilled piles in cobble layers …

Maximum-Likelihood Directivity For Depicting Perceptual Contours, Chun-Shun Tseng, Jung-Hua Wang, Ren-Jie Huang

Journal of Marine Science and Technology–Taiwan

This paper presents a novel method based on MaximumLikelihood Estimation (MLE) to evaluate pixel directivity for depicting image contours of objects as perceived by human eyes. The method is characterized by employing discrete masks with different shapes centered at a target pixel to sample gradient orientations of neighboring pixels for evaluating directivity of the target pixel, and applying MLE to determine one of these discrete sampling masks that best fits the orientation similarity of the target pixel. We show that such a fitting process in effect fulfils the similarity and proximity laws in Gestalt theory, and a salient alignment location …

Efficiently Mining Frequent Itemsets In Transactional Databases, Salah Alghyaline, Jun-Wei Hsieh, Jim Z. C Lai

Journal of Marine Science and Technology–Taiwan

Discovering frequent itemsets is an essential task in association rules mining and it is considered to be computationally expensive. To find the frequent itemsets, the algorithm of frequent pattern growth (FP-growth) is one of the best algorithms for mining frequent patterns. However, many experimental results have shown that building conditional FP-trees during mining data using this FP-growth method will consume most of CPU time. In addition, it requires a lot of space to save the FP-trees. This paper presents a new approach for mining frequent item sets from a transactional database without building the conditional FP-trees. Thus, lots of computing …

The Study On The Non-Linear Dynamic Causal Relationships Between Construction Index And Its Materials Indexes, Yih-Chang Wang, Ran Huang, Chien-Chung Nieh, Tsai-Lung Weng

Journal of Marine Science and Technology–Taiwan

This paper aims to examine the short-run and long-run nonlinear dynamic relationship between indexes of construction and cement or steel in the Taiwan stock markets over the 1995- 2011 periods. In addition to traditional linear co-integration tests, the threshold co-integration and asymmetric threshold error-corrrection models (TECM) suggested by Enders and Siklos (2001) are used. Linear co-integration tests reveal no co-integration between the construction index and either of the cement and steel indexes, while threshold co-integration tests show existence of the co-integration relationship and asymmetric adjustment. Further analysis from TECM Granger causality tests finds evidence of a bi-directional causality between cement …

Establishment Of Effective Metamodels For Seakeeping Performance In Multidisciplinary Ship Design Optimization, Dongqin Li, Philip A Wilson, Xin Zhao

Journal of Marine Science and Technology–Taiwan

Ship design is a complex multidisciplinary optimization process to determine configuration variables that satisfy a set of mission requirements. Unfortunately, high fidelity commercial software for the ship performance estimation such as Computational Fluid Dynamics (CFD) and Finite Element Analysis (FEA) is computationally expensive and time consuming to execute and deters the ship designer’s ability to explore larger range of optimization solutions. In this paper, the Latin Hypercube Design was used to select the sample data for covering the design space. The percentage of downtime, a comprehensive seakeeping evaluation index, was also used to evaluate the seakeeping performance within the short-term …

Evaluation Of Penetration Depth And Protective Effectiveness Of Concrete-Penetrating Sealer Materials, Sung-Ching Chen, Ran Huang, Hui-Mi Hsu, Si-Yu Zou, Li-Wei Teng

Journal of Marine Science and Technology–Taiwan

Crystal penetrating sealer materials (PSMs) are commonly used on the surface of concrete to protect the surface from damage and thereby extend its service life. Such materials penetrate into existing pores or cracks and form crystals, which block potential paths through which unknown materials could enter and degrade the concrete. In this study, the constituent compounds of a PSM were divided into seven categories, labeled CAT I to CAT VII, and five discrete particle size fractions corresponding to sieve Nos. 30, 50, 100, 200, and 200 were considered. Energy dispersive spectrometry revealed that the constituent elements of the PSM were …

Software Defined Multi-Spectral Imaging For Arctic Sensor Networks, Sam B. Siewert, Matthew Demi Vis, Ryan Claus, Vivek Angoth, Karthikeyan Mani, Kenrick Mock, Surjith B. Singh, Saurav Srivistava, Chris Wagner

Publications

Availability of off-the-shelf infrared sensors combined with high definition visible cameras has made possible the construction of a Software Defined Multi-Spectral Imager (SDMSI) combining long-wave, near-infrared and visible imaging. The SDMSI requires a real-time embedded processor to fuse images and to create real-time depth maps for opportunistic uplink in sensor networks. Researchers at Embry Riddle Aeronautical University working with University of Alaska Anchorage at the Arctic Domain Awareness Center and the University of Colorado Boulder have built several versions of a low-cost drop-in-place SDMSI to test alternatives for power efficient image fusion. The SDMSI is intended for use in field …

Gas Gap Conductance Between Ht9 And Ss316, Michael Luke Scoggins, Chris Martinez

Student Research Symposium

Inside a nuclear reactor, it is important to understand in detail the heat transfer between surfaces. This research aims to ensure the safety of new fuel experiments in the Idaho National Laboratory test reactor by studying the thermal properties of stainless steel and high temperature steel surfaces with a microscopic gas gap between them. The complex behavior of the gas requires a combination of experimental and theoretical modeling. A technique called laser flash analysis is being applied to calculate the effective thermal conductivity of the metal-gas-metal composite sample. From there, gap conductance is calculated using the other known physical parameters …

Camp: An Algorithm To Recover Sparse Signals With Unknown Clustering Pattern Using Approximate Message Passing, Mohammad Shekaramiz, Todd K. Moon, Jacob H. Gunther

Student Research Symposium

Recovering clustered sparse signals with an unknown sparsity pattern for the single measurement vector (SMV) problems is considered. The notion of sparsity in this context is referred to the signals having very few non-zero elements in some known basis. In the SMV, the objective is to recover a sparse or compressible signal from a small set of linear non-adaptive measurements. The case considered in this paper is that the signal of interest is not only sparse but also has an unknown clustered pattern, which occurs in many practical situations. In this case, we propose a sparse Bayesian learning algorithm simplified …

Arakniprint: 3d Printing Of Synthetic Spider Silk To Produce Biocompatible And Resorbable Biomaterials, Ashley Ruben, Brianne Bell, Chase Spencer, Craig Soelberg, Dan Gil, Thomas Harris, Richard Decker, Timothy A. Taylor, Randolph V. Lewis

Student Research Symposium

At $3.07 billion in 2013, the 3D printing industry was projected to reach $12.8 billion in 2018 and exceed $21 billion by 2020 (Wohlers and Caffrey, 2013). A lucrative part of this expanding industry includes printing biocompatible medical implants, devices, and tissue scaffolds. A common problem encountered with traditional devices, implants, and tissue scaffolds is that they are not unique to the patient and lack the necessary strength and biocompatibility. To answer these demands, customizable devices are being produced from patient medical scans and CAD designs using 3D printers. These printers traditionally use thermoplastics because of the ease with which …

Online Dissemination Of Official Information - The 2014 Carlton Complex Wildfires, Apoorva Chauhan

Student Research Symposium

Using the 2014 Carlton Complex wildfires as a case study, we explore how emergency responders and the news media shared official information online during this crisis event. We first identified the local emergency response and news media agencies for this event and then collected data from each agency’s Facebook account, Twitter account, and website. The data show that most of the online information about this event came from the local agencies handling the event. The data also show that in most cases, event updates were first reported online by the local news media of the affected cities and communities. We …

Secretion Of Bioplastic Polymers From Methanotrophic Bacteria Grown Using Natural Gas, Chad L. Nielsen, Charles D. Miller

Student Research Symposium

Biodegradable bioplastics show promise as a replacement for traditional plastics. Cost of production due to the cost of feedstocks and separation/purification processes are the main obstacles to widespread use of bioplastics. The possibility of reducing these costs through using methane gas as a feedstock and genetically transforming a methanotrophic bacterium to secrete bioplastics was investigated through experimentation. The bacteria are a promising option for bioplastic production.

Shear Testing Of Precast Concrete Sandwich Wall Panel Composite Shear Connectors, Taylor Sorensen, Jaiden Olsen, Marc Maguire

Student Research Symposium

As energy codes become more stringent, thermal efficiency of Precast Concrete Sandwich Panel Walls has become more important. This paper addresses the problem of predicting the behavior of full scale precast concrete sandwich panel walls, using data collected from small, inexpensive push-off specimens. Several fiber reinforced polymer (FRP) connectors being used today underwent shear testing performed on component scale push-off specimens. Each specimen contained several of the FRP connectors and the variables studied were wythe thickness, insulation type and insulation bond. A simplified beam spring model was created which uses beams to represent the concrete wythes and shear springs to …

Impact Of Weather On Serious Injury Rates Of Flight Crews, Morgan Eudy

Human Factors and Applied Psychology Student Conference

No abstract provided.

How Trust Influences Adoption: Creating Human-Centered Autonomous Vehicles, David R. Garcia

Human Factors and Applied Psychology Student Conference

No abstract provided.

The Design Of A Racing Simulator: A Three-Phase User Testing Approach, Jakob E. Rouleau, Eric J. Wach

Human Factors and Applied Psychology Student Conference

No abstract provided.

Accident Events In Automated Vehicles, Peter Hancock, Tiffani Walker, Valarie Yerdon, William Volante, Shu Ling Li

Human Factors and Applied Psychology Student Conference

We are all aware of the increasing penetration of purely automated vehicles into the coming panoply of ground transportation. Much of the test and evaluation procedures of these respective vehicles have occurred on unidirectional, multi-lane highways and freeways where the central computational problem is relatively simple longitudinal and lateral control. In essence, these controls over what Gibson and Crooks labelled the ‘field of safe travel,’ can be affected by a suite of on-board sensors that measure a combination of range (d) and closure velocity (v). These combinatorial kinematics and kinetics can then provide satisficed solutions to the question of relative …

Development Of A Habitat Monitoring System For Simulated Mars Missions, Rebecca Demarco

Human Factors and Applied Psychology Student Conference

The developers for the Habitat Monitoring System (HMS) for the Mobile Extreme Environment Research Station (MEERS) Mission Control System (MCS) faced challenges in the design and implementation of their human machine interface. Designing a human machine interface for a diverse group of end users presents technical and design challenges for the developers. By applying human factors concepts and following the engineering process, the development team was able to produce a human machine interface that met the product requirements and satisfied their product owners. This presentation discusses the process used by the development team to create the interface for the Habitat …

Ergonomics In Space Flight – Past, Present, & Future, Robert Consolo

Human Factors and Applied Psychology Student Conference

From the days of “The Rocket Men” to the uprising of SpaceX, spaceflight has always inspired awe in humanity. If you examine the men that were apart of those first missions, you will find that they were not only the most capable, but won the genetic lottery to become this nations first astronauts. Looking to the times of Mercury, you see the extreme constraints that potential astronaut candidates had to meet in order to go to space. Aside from the rigorous medical testing, potential candidates also had to meet strict height and weight requirements. Early candidates could not be taller …

Creation And Implementation Of An Underwater-Capable Vr Headset Through The Use Of Additive Manufacturing, Matthew D. Meyers, Nathan Sonnenfeld

Human Factors and Applied Psychology Student Conference

No abstract provided.

Concept Design For Technology Enhanced, Self-Paced Student Lesson, Yolanda Ortiz

Human Factors and Applied Psychology Student Conference

No abstract provided.