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Articles 9601 - 9630 of 50111
Full-Text Articles in Entire DC Network
Insights Into The Dehydrogenation Selectivity Of Alloys Through Hydrogenation Kinetics, Keoni E. Baty, Stephen Purdy, Jeffrey Miller
Insights Into The Dehydrogenation Selectivity Of Alloys Through Hydrogenation Kinetics, Keoni E. Baty, Stephen Purdy, Jeffrey Miller
The Summer Undergraduate Research Fellowship (SURF) Symposium
Platinum alloy catalysts have a multitude of industrial applications due to their superior selectivity compared to pure platinum catalysts. The two properties believed to be responsible for high alloy selectivity in dehydrogenation are the electronic effect and the geometric effect. Currently, both effects are cited as the predominant effect leading to alloy selectivity. Our research seeks to quantify how the electronic effect of alloying changes the kinetics of hydrogenation, and to relate these changes to the observed olefin selectivity in dehydrogenation by alloys. We measured and compared apparent kinetics of ethylene hydrogenation on platinum and a Pt3V alloy catalyst of …
Hawaiian Lava Tubes With Extraterrestrial Habitat Applications, Jacob W. Just, Audai K. Theinat, Amin Maghareh, Antonio Bobet, Shirley J. Dyke
Hawaiian Lava Tubes With Extraterrestrial Habitat Applications, Jacob W. Just, Audai K. Theinat, Amin Maghareh, Antonio Bobet, Shirley J. Dyke
The Summer Undergraduate Research Fellowship (SURF) Symposium
One of the next major steps in space exploration, as noted by agencies such as NASA and SpaceX, is the creation of extraterrestrial habitats. Most current extraterrestrial habitat designs focus on above-surface solutions and do not consider all the hazards that can impact this habitat. However, the existence of lava tubes on the moon, supported by data from Gravity Recovery and Interior Laboratory (GRAIL), SELenological and ENgineering Explorer (SELENE), and NASA’s Lunar Reconnaissance Orbiter (LRO), could impact extraterrestrial habitat designs. To support life, a prospective habitat must be safe from the harsh conditions of space, including meteorite impacts, radiation, and …
Mass Spectrometry Image Creator (Msic): Ion Mobility / Mass Spectrometry Imaging Workflow In Python, Stephen Creger, Julia Laskin, Daniela Mesa Sanchez
Mass Spectrometry Image Creator (Msic): Ion Mobility / Mass Spectrometry Imaging Workflow In Python, Stephen Creger, Julia Laskin, Daniela Mesa Sanchez
The Summer Undergraduate Research Fellowship (SURF) Symposium
Mass spectrometry (MS) is a powerful characterization technique that enables identification of compounds in complex mixtures. Acquiring mass spectra in a spatially-resolved manner (i.e. over a grid), allows the data to be used to generate images that show the spatial distribution and relative intensities of every compound in a sample. These images can be used to monitor and identify biomarkers, explore the metabolism of compounds within tissues, and much more. However, the limitations of mass spectrometry can result in ambiguous compound identifications. Another characterization tool, ion mobility spectrometry (IM) can be integrated into existing MS routines to address this problem; …
Femtosecond Laser Electronic Excitation Tagging, Fleet, For Combustion And Flow, Trent Murray, Jordan Fisher, Mikhail Slipchenko, Terrence R. Meyer
Femtosecond Laser Electronic Excitation Tagging, Fleet, For Combustion And Flow, Trent Murray, Jordan Fisher, Mikhail Slipchenko, Terrence R. Meyer
The Summer Undergraduate Research Fellowship (SURF) Symposium
Femtosecond Laser Electronic Excitation Tagging, known as FLEET, can be used to measure the nitrogen gas content within a gaseous mixture. FLEET does not require any trace particles that could affect the combustion reaction or physical properties of the flow. Another advantage is the simple experimental implementation. In this work a 120-femtosecond laser pulse was focused in to the probe volume to dissociate the nitrogen gas via multiphoton process. The intensity of the light emitted after the recombination is proportional to the nitrogen gas to oxygen mass ratio as the dissociated nitrogen bonds with oxygen to form nitric oxide and …
Seeing Beyond: Real-Time Ultrasound Image Integration In Augmented Reality Based Telementoring, Mandira S. Marambe, Natalia Sanchez-Tamayo, Juan P. Wachs
Seeing Beyond: Real-Time Ultrasound Image Integration In Augmented Reality Based Telementoring, Mandira S. Marambe, Natalia Sanchez-Tamayo, Juan P. Wachs
The Summer Undergraduate Research Fellowship (SURF) Symposium
Ultrasound imaging, when aptly integrated with augmented reality based medical telementoring, may be beneficial as an assistive tool in a range of trauma procedures including removal of foreign objects from blast injuries and central or peripheral venous access. Expected benefits include reduced procedure completion time, higher efficiency, and higher incision accuracy. This paper describes the implementation strategy selected for the integration of real time ultrasound imaging in the trainee view of a telementoring system. The proposed strategy augments the view of the trainee surgeon by displaying the ultrasound image directly below and parallel to the ultrasound transducer. The developed system …
Targeting Neuropeptides To Bone Fractures For Accelerated Healing, Nicholas A. Young, Jeffery J. Nielsen, Philip S. Low
Targeting Neuropeptides To Bone Fractures For Accelerated Healing, Nicholas A. Young, Jeffery J. Nielsen, Philip S. Low
The Summer Undergraduate Research Fellowship (SURF) Symposium
In patients over the age of 65 especially, bone fractures represent a significant disease burden. Non-invasive drug therapies are not available for bone fractures which represents a problem for this population. Vasoactive intestinal peptide (VIP) and Pituitary Adenylate Cyclase-Activating Polypeptide (PACAP), two neuromodulator peptides in the glucagon superfamily, have demonstrated positive regulation of osteoblast proliferation and activity. Using acidic oligopeptides, we have developed ligands that target to and accumulate at fracture sites. These targeting ligands can be synthesized in sequence with bone anabolic peptides to minimize off target effects and increase potency at the fracture site to create safer and …
Characterization Of Bubble Detachment Process, Wentao Zhong, Weixiao Shang, Puyuan Wu, Jun Chen
Characterization Of Bubble Detachment Process, Wentao Zhong, Weixiao Shang, Puyuan Wu, Jun Chen
The Summer Undergraduate Research Fellowship (SURF) Symposium
Detachment of gas bubbles and its subsequent rise in liquid affect the chemical and petrochemical system significantly. Also, the principal of bubble detachment is very important in the study of cavitation and many electrochemical devices. Understanding the transport and transfer process in gas-liquid phase can help to better estimate the interfacial area and thus improve the device performance. Planar Laser Induced Fluorescent (PLIF) was applied in the experiment to measure the velocity field of bubble’s detachment from the glass tube in a water tank. The water tank was seeded with small particles that obeyed fluid dynamics and can emit fluorescent …
Tool For Correlating Ebsd And Afm Data Arrays, Andrew Krawec, Matthew Michie, John Blendell
Tool For Correlating Ebsd And Afm Data Arrays, Andrew Krawec, Matthew Michie, John Blendell
The Summer Undergraduate Research Fellowship (SURF) Symposium
Ceramic and semiconductor research is limited in its ability to create holistic representations of data in concise, easily-accessible file formats or visual data representations. These materials are used in everyday electronics, and optimizing their electrical and physical properties is important for developing more advanced computational technologies. There is a desire to understand how changing the composition of the ceramic alters the shape and structure of the grown crystals. However, few accessible tools exist to generate a dataset with the proper organization to understand correlations between grain orientation and crystallographic orientation. This paper outlines an approach to analyzing the crystal structure …
Investigation Of Alternate Valvetrain Strategies For Implementation Of Diesel Engine Cylinder Deactivation, Nishad G. Damle, Dheeraj B. Gosala, Gregory M. Shaver
Investigation Of Alternate Valvetrain Strategies For Implementation Of Diesel Engine Cylinder Deactivation, Nishad G. Damle, Dheeraj B. Gosala, Gregory M. Shaver
The Summer Undergraduate Research Fellowship (SURF) Symposium
Cylinder deactivation is a technique in multi-cylinder engines where the airflow and fuel injection are deactivated to a few of the total number of the cylinders such that the power demand is met by increasing fuel consumption in the remaining active cylinders. Diesel engine cylinder deactivation has been demonstrated to have fuel savings of 3.4% over heavy duty federal test procedure and approximately 4 – 35% fuel benefit is predicted over the port drayage cycle, while maintaining higher aftertreatment temperatures. Deactivation of cylinders can result in a decay in in-cylinder pressure via heat loss and blowby to the crankcase, which …
Structural And Functional Characterization Of Hyper-Phosphorylated Grk5 Protein Expressed From E. Coli, Joseph M. Krampen, John Tesmer, Qiuyan Chen
Structural And Functional Characterization Of Hyper-Phosphorylated Grk5 Protein Expressed From E. Coli, Joseph M. Krampen, John Tesmer, Qiuyan Chen
The Summer Undergraduate Research Fellowship (SURF) Symposium
G protein-coupled receptor (GPCR) kinases (GRKs) are proteins in the cell responsible for regulating GPCRs located on the cell membrane. GRKs regulate active GPCRs by phosphorylating them at certain sites which causes them to stop normal signaling on the membrane. This ultimately affects how the cell responds to its environment. GRK5 is a kinase of particular interest due to its involvement in the pathology of diseases such as cardiac failure, cancers, and diabetes. Understanding the structure and function of GRK5 is essential for discovering ways to manipulate its behavior with these diseases, but not much is known about how GRK5 …
Remote Sensing Of Soil Moisture Using S-Band Signals Of Opportunity: Model Development And Experimental Validation, Marvin Jesse, Benjamin Nold, James L. Garrison
Remote Sensing Of Soil Moisture Using S-Band Signals Of Opportunity: Model Development And Experimental Validation, Marvin Jesse, Benjamin Nold, James L. Garrison
The Summer Undergraduate Research Fellowship (SURF) Symposium
Root zone soil moisture (RZSM) is a vital aspect in meteorology, hydrology, and agriculture. There are currently some methods in passive and active remote sensing at L-band, but these methods are limited to a sensing depth of approximately 10 cm. Observing RZSM (water in the top meter of soil) will require lower frequencies, thus presenting significant difficulties for a spaceborne instrument, because of the required antenna size, the presence of radio-frequency interference (RFI), and competition for spectrum allocations (in the case of active radar). Bistatic radar using Signal of Opportunity (SoOp) (e.g. digital satellite transmitters) provides an opportunity for remote …
Using Vesicular Dispersion For Stabilizing Suspensions Of Dense Colloidal Particles Against Sedimentation, Hanlin Zhu, An-Hsuan Hsieh, David S. Corti, Elias I. Franses
Using Vesicular Dispersion For Stabilizing Suspensions Of Dense Colloidal Particles Against Sedimentation, Hanlin Zhu, An-Hsuan Hsieh, David S. Corti, Elias I. Franses
The Summer Undergraduate Research Fellowship (SURF) Symposium
Colloidal dispersions, like inks and paints, are often required to remain stable for long times, i.e., the dispersed colloidal particles should remain suspended. In most cases, a stable dispersion requires preventing the agglomeration of the suspended colloidal particles. If the particles agglomerate, their sizes will increase and rapid sedimentation will occur. Nevertheless, many colloidal particles of commercial interest have high densities. Thus, they quickly settle even without agglomeration. One novel approach to preventing the settling of high density particles is the use of close-packed vesicular dispersions (CPVDs) made of the surfactant DDAB (didodecyldimethylamine bromide). Previous work demonstrated the ability of …
A Security Approach For The Example Sodium Fast Reactor, Christian X. Young, Robert S. Bean
A Security Approach For The Example Sodium Fast Reactor, Christian X. Young, Robert S. Bean
The Summer Undergraduate Research Fellowship (SURF) Symposium
Increases in the spread of nuclear technology and the rise of non-state terrorism in the modern era has proved the need for effective security approaches to new nuclear facilities. Many documents about security approaches for nuclear plants are non-public material, however, making it difficult to teach others about the basics of security design. To alleviate this issue, we used available texts in the security realm to design a security approach for the Generation IV International Forum’s Example Sodium Fast Reactor. Our approach utilized infrared, microwave, fiber optic, and other advanced technologies to provide security for the special nuclear material present. …
Investigation Of Itx Derivative Photoinitiators For Depletion Lithography, Ran Le, Paul Somers, Liang Pan, Xianfan Xu, Teng Chi, Bryan Boudouris
Investigation Of Itx Derivative Photoinitiators For Depletion Lithography, Ran Le, Paul Somers, Liang Pan, Xianfan Xu, Teng Chi, Bryan Boudouris
The Summer Undergraduate Research Fellowship (SURF) Symposium
Direct laser writing (DLW) with two-photon polymerization (TPP) allows for fabricating 3-dimensional nano-scale polymer structures by focusing an ultrafast laser inside a photoresist system consisting of a monomer and photoinitiator. The photoinitiator is excited by the laser and triggers the polymerization process of the monomer. Stimulated emission depletion (STED), which was designed for resolution enhancement for microscopy, could be applied to this process and inhibit the polymerization with an additional laser for depletion. This STED process can be used to increase the resolution of the 3D printing. However, the photoresist for STED-DLW should contain a photoinitiator that is sensitive to …
Development Of Closures For Collisions Between Realistic Particles, Cary Faulkner, Aaron Morris
Development Of Closures For Collisions Between Realistic Particles, Cary Faulkner, Aaron Morris
The Summer Undergraduate Research Fellowship (SURF) Symposium
Systems consisting of solid particles can exhibit fluid-like motion and are common in industrial applications such as pharmaceutical or food processing. Such granular flows are often studied using simulation methods. One common simulation method is the discrete element method (DEM), which solves for the motion of individual particles based on Newton’s laws. However, large-scale particulate systems are difficult to study using DEM due to excessively long simulation times. The goal of this study is to reduce the computational load of these large-scale simulations. Instead of resolving particle trajectories throughout each collision, a scattering function is developed that directly relates the …
Modular Scale Process For Sour Gas Removal And Disposal, Audra Barnes, Zewei Chen, Rakesh Agrawal
Modular Scale Process For Sour Gas Removal And Disposal, Audra Barnes, Zewei Chen, Rakesh Agrawal
The Summer Undergraduate Research Fellowship (SURF) Symposium
The purpose of this research is to find methods for removing sour gas, H2S and CO2, from shale gas streams and properly dispose of them for small scale gas processing plants. H2S and CO2 are both contaminants found in shale gas, and they must be removed in order for the natural gas to meet environmental and gas pipeline regulations. Currently, at regional scale plants, the amine sweetening process followed by the Claus process are used to remove and treat the sour gas, however these do not work for small scale plants. Three alternative methods were explored to accommodate small scale …
Bacteria Movement Near Surfaces, Shulin Wang, Adib Ahmadzadegan, Arezoo Ardekani
Bacteria Movement Near Surfaces, Shulin Wang, Adib Ahmadzadegan, Arezoo Ardekani
The Summer Undergraduate Research Fellowship (SURF) Symposium
Understanding the behaviors of bacteria near surfaces is crucial in many biological and ecological applications. This knowledge can be used to hinder undesired biofilm formation on medical instruments and wounds. On top of that, it could also provide further insights in biodegradation of dispersed oil. In this work, the behavior of Escherichia Coli near a surface was experimentally studied. We utilized an inverted microscope in the phase filed illumination mode and processed acquired images to track the motions of bacteria near surfaces with high accuracy and repeatability. Distribution of the cells when they reached a steady state shows that the …
A Case Study Of Engineering Students’ Experiences With The Co-Op Application Process, Laura F. Long, Xinrui Xu, Joyce B. Main
A Case Study Of Engineering Students’ Experiences With The Co-Op Application Process, Laura F. Long, Xinrui Xu, Joyce B. Main
The Summer Undergraduate Research Fellowship (SURF) Symposium
Engineering faculty and advisors emphasize the importance of obtaining industry experience in addition to academic learning. One way universities encourage their students to obtain hands-on work experiences is through cooperative education (co-op) programs. Previous studies have examined the advantages and disadvantages of co-op participation, but the application process for students has not been closely examined. Studying this process will show how academic institutions and companies can potentially enhance the student experience of applying for a co-op position. This study examines student experiences with the co-op application process based on interviews with engineering students at a research-intensive university in the Midwestern …
Thin Film Cocaine Sensors, Datta Sheregar, Vick Hung, Jenna Walker, Orlando Hoilett, Jacqueline Linnes, Robert Nawrocki
Thin Film Cocaine Sensors, Datta Sheregar, Vick Hung, Jenna Walker, Orlando Hoilett, Jacqueline Linnes, Robert Nawrocki
The Summer Undergraduate Research Fellowship (SURF) Symposium
Over 7 million Americans suffer from a drug use disorder and up to 60% of individuals treated for addiction will ultimately relapse. We are developing ultra-thin film electrodes on a wearable substrate for a sensor that can detect minute amounts of cocaine in sweat droplets secreted from the skin. This will enable wearable drug monitoring for personalized rehabilitation treatment plans and improve long-term addiction recovery rates. The current research focuses on developing a thin-film sensor that can be applied directly to the skin. First a layer of PVP (poly4-vinylphenol) was prepared and then spun coated onto a piece of glass. …
Characterization And Quantification Of Fibrin Gel Mechanics With Fibroblast Invasion, Nicklaus Iavagnilio, Sarah Calve, Adrian Buganza-Tepole
Characterization And Quantification Of Fibrin Gel Mechanics With Fibroblast Invasion, Nicklaus Iavagnilio, Sarah Calve, Adrian Buganza-Tepole
The Summer Undergraduate Research Fellowship (SURF) Symposium
Cutaneous wounds undergo an intricate healing process stimulated by a variety of local mechanical and biological stimuli that lead to patterns of growth and remodeling. Despite significant research in dermal wound healing, pathological scarring is still common particularly in wounds closed under mechanical stress, or large wounds left to heal by secondary intention. The purpose of this study is to utilize previously established wound healing models using fibrin gels and fibroblasts to better understand the functional relationships of the biological processes of normal compared to abnormal wound healing. Increases in uni-axial strain and transforming growth factor beta-1 concentration have been …
Solid Solution Strengthened Fe Alloys, Sidharth Krishnamoorthi, Ruizhe Su, Yifan Zhang, Xinghang Zhang
Solid Solution Strengthened Fe Alloys, Sidharth Krishnamoorthi, Ruizhe Su, Yifan Zhang, Xinghang Zhang
The Summer Undergraduate Research Fellowship (SURF) Symposium
Iron (Fe)-based alloys (such as steel) are widely used structural materials in industry. Numerous methods have been applied to improve their mechanical properties. In this study, we used a technique know as magnetron sputtering to deposit various Fe-based binary alloy coatings to investigate the influence of solutes on solid solution hardening. Several factors contribute to the solid solution hardening of the alloys, such as composition, atomic radius, modulus, and lattice parameter. After preliminary calculations and analysis, we selected several solutes, including molybdenum (Mo), niobium (Nb), and zirconium (Zr). The compositions of solutes were varied to be 2.5, 5, 8 atomic …
Design Modifications For A Small, Affordable Low Intensity Focused Ultrasound Device, Sui Shen, Kelsey C. Bayer, Pedro P. Irazoqui
Design Modifications For A Small, Affordable Low Intensity Focused Ultrasound Device, Sui Shen, Kelsey C. Bayer, Pedro P. Irazoqui
The Summer Undergraduate Research Fellowship (SURF) Symposium
Depression is a prevalent and serious medical illness, and while there are antidepressant drugs to mitigate depressive symptoms, 10 - 30% of patients either do not respond or develop a tolerance to these medications. Literature supports that there is an interrelation between the inflammatory response and treatment-resistant depression. A promising method to tackle depressive symptoms is to block the inflammatory signaling pathway with vagus nerve stimulation (VNS), reducing pro-inflammatory cytokine levels. Although electrical VNS devices exist, they are invasive, expensive, and have side effects including voice alteration, dyspnea, and cough. Low intensity focused ultrasound (LIFU) is a promising method that …
"I Don't Belong With All The Really Smart Kids Here": Student Characterizations Of Belonging In Engineering, Lisa J. Musselman, Jacqueline A. Rohde, Brianna S. Benedict, Allison Godwin
"I Don't Belong With All The Really Smart Kids Here": Student Characterizations Of Belonging In Engineering, Lisa J. Musselman, Jacqueline A. Rohde, Brianna S. Benedict, Allison Godwin
The Summer Undergraduate Research Fellowship (SURF) Symposium
This research paper is a qualitative study of how students with diverse demographics, mindsets, and identities describe what it means to belong in engineering. Engineering students’ sense of belonging has a significant impact on students’ decisions to leave engineering. Talented students who feel that they do not belong in engineering are more likely to leave than their peers. Previous studies have focused on belonging for underrepresented students in engineering (e.g., women or minorities) or specific factors contributing to student belonging (e.g., classroom performance). However, few have explored how students describe what it means for them to belong in engineering to …
Validation Of Lateral Gap Leakage Objective Function For Use In Multi-Objective Optimization Of Gerotor Pumps, Kevin Cohen, Andrew Robison, Andrea Vacca
Validation Of Lateral Gap Leakage Objective Function For Use In Multi-Objective Optimization Of Gerotor Pumps, Kevin Cohen, Andrew Robison, Andrea Vacca
The Summer Undergraduate Research Fellowship (SURF) Symposium
Gerotor pumps are a common pump choice used in the automotive, agricultural, and construction fields for their low cost and durability. Recently, demanding applications have called for significant design improvements in gear geometry. To address these design challenges, multi-objective optimization has been applied to gear geometry. The goal of this work is to introduce minimizing of lateral-gap leakage to the multi-objective optimization. An objective function for evaluating lateral-gap leakage based on 1D, pressure driven flow is proposed. This simplified approach is compared to CFD simulation solving of Reynolds equation with two pressure boundaries. Comparison of the simplified relation and the …
Applying Machine Learning Techniques For Type2 Diabetes Readmission Prediction Based On Retrospective Data, Abhishek Sharma, Nan Kong, Paul M. Griffin, Andrés García-Arce, Munirul Haque
Applying Machine Learning Techniques For Type2 Diabetes Readmission Prediction Based On Retrospective Data, Abhishek Sharma, Nan Kong, Paul M. Griffin, Andrés García-Arce, Munirul Haque
The Summer Undergraduate Research Fellowship (SURF) Symposium
Roughly 9.3% of US population suffer from diabetes and the 30 day readmission rate for diabetes patients range between 14.4 to 22.7%. Hence identifying the risk of readmission is a crucial information for the service providers to not only reduce the healthcare cost but also improve the quality of patient care. This paper models machine learning algorithms to compute probability of 30-day hospital readmission for type2 diabetes patients. Along with novel pre-processing techniques to identify the challenges of noisy and non-homogenized medical data, we used methods to downsize the feature vector size without sacrificing prediction accuracy. Our method has been …
High Performance Mortar With 100% Recycled Aggregate Using Titanium Dioxide Nanoparticles, Molly Schrager, Vito Francioso, Arjun Kadakia, Mirian Velay-Lizancos
High Performance Mortar With 100% Recycled Aggregate Using Titanium Dioxide Nanoparticles, Molly Schrager, Vito Francioso, Arjun Kadakia, Mirian Velay-Lizancos
The Summer Undergraduate Research Fellowship (SURF) Symposium
Concrete and mortar are materials commonly used in construction. Their main compounds are cement, aggregates (sand and gravel) and water. In an effort to increase the sustainability of these materials, the idea of using recycled aggregates from ground old concrete and using it to make mortar and concrete has gained more interest. It has two advantages: it reduces the need to mine for raw materials and lessens the amount of old and defective concrete that is typically put in landfills. But, the use of recycled concrete aggregate lowers the strength of mortars and concretes because the residual compounds in the …
Rapid Sample Processing Of Foodborne Pathogens Using Cross-Flow Microfiltration, Casey Bomrad, Michael R. Ladisch, Linda Liu, Jessica Lynn Zuponcic, Eduardo Ximenes
Rapid Sample Processing Of Foodborne Pathogens Using Cross-Flow Microfiltration, Casey Bomrad, Michael R. Ladisch, Linda Liu, Jessica Lynn Zuponcic, Eduardo Ximenes
The Summer Undergraduate Research Fellowship (SURF) Symposium
Foodborne illnesses are a prominent issue, causing 48 million illnesses annually. The Escherichia coli O157:H7 outbreak in romaine lettuce is a recent example. The source of the pathogen was contaminated irrigation water. The most common methods for detecting foodborne pathogens involve cultivation and enrichment of food samples. The enrichment steps are time-consuming, taking 24 to 72 hours to complete. Our study aims to accelerate irrigation water sample preparation for pathogenic microorganism fast detection through cross-flow microfiltration. This is accomplished by a device called a continuous cell concentration and recovery device (C3D). The C3D uses cross-flow microfiltration in a hollow fiber …
Remote Sensing Using I-Band And S-Band Signals Of Opportunity, Kadir Efecik, Benjamin R. Nold, James L. Garrison
Remote Sensing Using I-Band And S-Band Signals Of Opportunity, Kadir Efecik, Benjamin R. Nold, James L. Garrison
The Summer Undergraduate Research Fellowship (SURF) Symposium
Measurement of soil moisture, especially the root zone soil moisture, is important in agriculture, meteorology, and hydrology. Root zone soil moisture is concerned with the first meter down the soil. Active and passive remote sensing methods used today utilizing L-band(1-2GHz) are physically limited to a sensing depth of about 5 cm or less. To remotely sense the soil moisture in the deeper parts of the soil, the frequency should be lowered. Lower frequencies cannot be used in active spaceborne instruments because of their need for larger antennas, radio frequency interference (RFI), and frequency spectrum allocations. Ground-based passive remote sensing using …
Deep Machine Learning For Mechanical Performance And Failure Prediction, Elijah Reber, Nickolas D. Winovich, Guang Lin
Deep Machine Learning For Mechanical Performance And Failure Prediction, Elijah Reber, Nickolas D. Winovich, Guang Lin
The Summer Undergraduate Research Fellowship (SURF) Symposium
Deep learning has provided opportunities for advancement in many fields. One such opportunity is being able to accurately predict real world events. Ensuring proper motor function and being able to predict energy output is a valuable asset for owners of wind turbines. In this paper, we look at how effective a deep neural network is at predicting the failure or energy output of a wind turbine. A data set was obtained that contained sensor data from 17 wind turbines over 13 months, measuring numerous variables, such as spindle speed and blade position and whether or not the wind turbine experienced …
Validation Of Wrinkling-To-Delamination Adhesion Measurement Technique, Allison Chau, Hyeyoung Son, Chelsea S. Davis
Validation Of Wrinkling-To-Delamination Adhesion Measurement Technique, Allison Chau, Hyeyoung Son, Chelsea S. Davis
The Summer Undergraduate Research Fellowship (SURF) Symposium
Polymer thin films have a wide range of applications that span several different industries. Their optical clarity as well as their mechanical rigidness result in their versatile use in applications such as contact lenses, wearable sensors, and flexible electronics. These applications require precise adhesion, so the need for a simple, quantitative adhesion measurement technique is critical. Several methods have already been developed that quantify the adhesion of flexible thin films attached to rigid substrates. However, when the thin films are rigid and the substrates compliant, these methods are insufficient. In the authors’ previous work, an adhesion measurement technique was developed …