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Articles 68671 - 68700 of 196885

Full-Text Articles in Engineering

Fabrication Of Sub-300 Nm Fins At Rit By Sadp, Kelly Weiskittel Apr 2019

Fabrication Of Sub-300 Nm Fins At Rit By Sadp, Kelly Weiskittel

Journal of the Microelectronic Engineering Conference

The goal of fabricating sub-300 nm fins with the implementation of self-aligned double patterning (SADP) at Rochester Institute of Technology’s (RIT’s) Semiconductor & Microsystems Fabrication Laboratory (SMFL) was not realized completely. An energy dose meander was completed in order to qualify a new resist being used with the fabrication process that Christopher O’Connell developed for his graduate thesis. Manual spin coating of Spin-on-Carbon (SOC), bottom antireflective coating (BARC), and photoresist were all qualified. A 2:1 ratio of AZ MiR 701 photoresist to PGMEA was used to thin the resist for implementation of a 300 nm coat. Low pressure chemical vapor …


Biristor Array Investigation, Jeremiah Leit Apr 2019

Biristor Array Investigation, Jeremiah Leit

Journal of the Microelectronic Engineering Conference

The biristor is a device that has interesting I-V characteristics. When it is current driven the reference device exhibits neural spiking. This neural spiking is characterized by a differing voltage at a steady current. If all of the devices on the chip that was designed exhibit this neural spiking behavior it has the potential of being used as a nueromorphic chip given its layout. The other method of operation is one in which a hysteresis loop is formed. This hysteresis loop can be used for hardware based encryption. This is because the device acts differently to the same stimulus based …


Fefet Fabrication And Characterization At Rit, Jordan Merkel Apr 2019

Fefet Fabrication And Characterization At Rit, Jordan Merkel

Journal of the Microelectronic Engineering Conference

No abstract provided.


Fabrication Of Sub-300 Nm Fins At Rit By Sadp, Kelly Weiskittel Apr 2019

Fabrication Of Sub-300 Nm Fins At Rit By Sadp, Kelly Weiskittel

Journal of the Microelectronic Engineering Conference

No abstract provided.


Sensitivity Analysis Of An Airfoil Using Computational Fluid Dynamics, Itay Savion Apr 2019

Sensitivity Analysis Of An Airfoil Using Computational Fluid Dynamics, Itay Savion

Thinking Matters Symposium Archive

In fixed wing aircrafts, the variation of lift coefficient with the angle of attack is a major consideration. This project explores the variation of lift force and lift coefficient of an SD2030 airfoil as a function of the angle of attack, Raynolds number, size of the computational domain, length of the wing, and the fluid mesh size. The problem is modeled using the flow simulation (CFD) module of SolidWorks. The outcome of this sensitivity analysis is compared with available experimental data.


Illuminator, Volume 2, Issue 8, Batten College Of Engineering & Technology, Old Dominion University Apr 2019

Illuminator, Volume 2, Issue 8, Batten College Of Engineering & Technology, Old Dominion University

College of Engineering & Technology Newsletter

April 2019 issue of Illuminator, a monthly publication of ODU's Batten College of Engineering and Technology.


A Tunable Triboelectric Wideband Energy Harvester, Daniel S. Nelson, Alwathiqbellah Ibrahim, Shahrzad Towfighian Apr 2019

A Tunable Triboelectric Wideband Energy Harvester, Daniel S. Nelson, Alwathiqbellah Ibrahim, Shahrzad Towfighian

Systems Science and Industrial Engineering Faculty Scholarship

The ability to efficiently convert mechanical energy into electrical energy has become an important topic of discussion and research in the last decade. Triboelectric generators have recently been popular for vibration energy harvesting, but despite plenty of research on its material aspect, research on combining mechanical characteristics and voltage generation output has been sparse. Many energy harvesters suffer from low operating bandwidths and are usually restricted to operating at a specific frequency. We propose a tunable triboelectric energy harvester that has a large response over a wide frequency bandwidth at low frequencies. The tunability is implemented by axially pre-loading a …


Kinematics During Knee Extension, Lunge, And Chair Rise, Center For Orthopaedic Biomechanics, Kevin Shelburne, Phd, Michael D. Harris, Phd, Vasiliki Kefala, Donald R. Hume, Bradley S. Davidson, A. J. Cyr, R. H. Kim, A. A. Ali, E. M. Mannen Apr 2019

Kinematics During Knee Extension, Lunge, And Chair Rise, Center For Orthopaedic Biomechanics, Kevin Shelburne, Phd, Michael D. Harris, Phd, Vasiliki Kefala, Donald R. Hume, Bradley S. Davidson, A. J. Cyr, R. H. Kim, A. A. Ali, E. M. Mannen

Living Kinematics of the Knee

No abstract provided.


Construction Of High-Performance 3d Nanostructured Flower-Like Iron-Nickel Sulfide For Supercapacitor, Chen Zhao, Sanket Bhoyate, Chunyang Zhang, Ram K. Gupta, Pawan K. Kahol Apr 2019

Construction Of High-Performance 3d Nanostructured Flower-Like Iron-Nickel Sulfide For Supercapacitor, Chen Zhao, Sanket Bhoyate, Chunyang Zhang, Ram K. Gupta, Pawan K. Kahol

Posters

The global energy crisis and environmental pollution have stimulated increasing attention to developing clean and renewable alternative energy sources. One of the most efficient and greenest energy storage devices is supercapacitor which could store energy via electrical double layer and redox reactions. Supercapacitors are widely employed for many portable electronics and hybrid electric vehicles due to their high-power density, fast charge-discharge rate, and good cycle stability. In this work, 3D nanostructured flower-like iron-nickel sulfide was synthesized on the nickel foam using a facile hydrothermal method. The iron-nickel sulfide electrode showed out­standing performance for supercapacitor with a high areal capacitance of …


The Most Common Misconceptions Of Employers About Asian Females, Searching For A Position In Engineering Fields In The United States, Manaswini Bhamidipati, Tatiana Goris Apr 2019

The Most Common Misconceptions Of Employers About Asian Females, Searching For A Position In Engineering Fields In The United States, Manaswini Bhamidipati, Tatiana Goris

Posters

The purpose of this study is to identify the common misconceptions of employers about the Asian female employees who are searching for a position in the engineering field. The study is conducted under quantitative methodology and ground theory design. The participants of this study are aware of the content of the study and are not forced to participate in the study. The research is limited to the United States. Asian female immigrants with an engineering degree are encouraged for the study.


Nanosheets Of Cuco₂O₄ As A High-Performance Electrocatalyst In Urea Oxidation, Camila Zequine, Ram K. Gupta, Pawan K. Kahol Apr 2019

Nanosheets Of Cuco₂O₄ As A High-Performance Electrocatalyst In Urea Oxidation, Camila Zequine, Ram K. Gupta, Pawan K. Kahol

Posters

The urea oxidation reaction (UOR) is a possible solution to solve the world’s energy crisis. Fuel cells have been used in the UOR to generate hydrogen with a lower potential compared to water splitting, decreasing the costs of energy production. Urea is abundantly present in agricultural waste and in industrial and human wastewater. Besides generating hydrogen, this reaction provides a pathway to eliminate urea, which is a hazard in the environment and to people’s health. In this study, nanosheets of CuCo₂O₄ grown on nickel foam were synthesized as an electrocatalyst for urea oxidation to generate hydrogen as a green fuel. …


Civilian Acquirer For Fire Safety (Cafs), Antara Das, Marcus Allen, Clark Shaver Apr 2019

Civilian Acquirer For Fire Safety (Cafs), Antara Das, Marcus Allen, Clark Shaver

Posters

The department of Electronics Engineering Technology (EET) of Pittsburg State University has designed a prototype of an autonomous rover to help firefighters to find lives trapped in a building during an event of fire. The rover prototype has been named CAFS, which is the abbreviated form for Civilian Acquirer for Fire Safety. This device intends to produce the first ever autonomous system to locate, record, and transmit people’s location from within a building to a user outside of the building. According to the National Fire Protection Association (NFPA), on 2017, 72% of the fire that happened in the USA was …


Extrusion Production Of 3d Printer Filament For Additive Manufacturing, Patrick Hardy, Cole Angermayer, Rhett Lokey, Rebeca Book, Jeanne H. Norton Apr 2019

Extrusion Production Of 3d Printer Filament For Additive Manufacturing, Patrick Hardy, Cole Angermayer, Rhett Lokey, Rebeca Book, Jeanne H. Norton

Posters

Additive manufacturing, also known as 3D printing, is becoming a go-to production method for short production runs and rapid prototyping on a commercial scale. The growth of additive manufacturing is due to many fac­tors including development of concept modeling, product designing, prototyping, and customized parts. Pittsburg State University’s College of Technology strives to stay at the cutting edge of processing materials for additive manufacturing. The capability of making our own 3D-printer filament would allow students to work with new and different materials and would allow students to learn at the forefront of 3D printing technology. The Wayne Yellowjacket Extruder and …


Molybdenum Oxides For Energy Generation And Storage Using Efficient Clean Method, Camila Zequine, Pawan K. Kahol, Ram K. Gupta Apr 2019

Molybdenum Oxides For Energy Generation And Storage Using Efficient Clean Method, Camila Zequine, Pawan K. Kahol, Ram K. Gupta

Posters

To solve the growing energy issues, significant efforts have been focused on the search of earth-abundant ele­ments that can provide multifunctional behavior for both energy generation and storage. Due to the low-cost and rich chemical nature, transition metal oxide nanostructures have been used in the fabrication of energy devices, such as fuel cells and lithium batteries. In this work, nickel, cobalt and iron molybdates were synthesized via a simple hydrothermal method in order to fabricate electrodes for oxygen evolution reaction (OER) and a superca­pacitor. FeMoO₄ required an overpotential of 294 mV to achieve a current density of 10 mA/cm2 for …


Santa Clara Magazine, Volume 60 Number 2, Spring 2019 [Print Issue V. 60:1], Santa Clara University Apr 2019

Santa Clara Magazine, Volume 60 Number 2, Spring 2019 [Print Issue V. 60:1], Santa Clara University

Santa Clara Magazine

28 - TECHNOLOGY, WONDER & US We’re at the epicenter of the biggest ecosystem of information exchange in history. How do we ensure tech fosters human flourishing? By Dorian Llywelyn, S.J. Illustrations by Derek Brahney.

36 - QUERY RESULTS What questions should we be asking about ethics and AI? Here are six. By Irina Raicu J.D. ’09. Illustrations by Paul Blow.

40 - A CURIOUS CASE If you want to innovate for the world, you need the room to do it. Sanjiv Das and a tale of machine learning, mortgages, and mistaken identity. By Deborah Lohse. Illustrations by Ellen Weinstein. …


Soundboard: Planar Tracking For Instrument Control, Peter O'Sullivan Apr 2019

Soundboard: Planar Tracking For Instrument Control, Peter O'Sullivan

ENGS 86 Independent Projects (AB Students)

The Soundboard is the central component of Syrinx, a synthesizer instrument invented by Spencer Topel. A generated audio signal is transduced through the Soundboard, and by manually adjusting the positioning of its top metal plane, the user can manipulate the encased soundwaves before they are transduced back into a signal and output. My task for this project was to add controller functionality to the Soundboard component by implementing control voltages that carry information about its planar tilt, yaw, and altitude. These voltages can be used to modulate various digital parameters and further affect the sonic output of the instrument. Further, …


Design And Implementation Of Sql Online Practice Platform, Wenhui Zhang Apr 2019

Design And Implementation Of Sql Online Practice Platform, Wenhui Zhang

Masters Theses & Specialist Projects

Database management is a very important subject in computer science education. The study of SQL syntax is the most important part of this course. The traditional teaching method only lets the students practice SQL syntax through the textbook exercise. Students cannot get the query result directly. Moreover, students do not know intuitively what is wrong with the query sentence. In this study, we want to find a better way for the teachers and the students to learn this part of database management. Teacher uploads a SQL file through a web page, it will create a database with several tables and …


Dice Mythbusters, C. Warren Campbell, William P. Dolan Apr 2019

Dice Mythbusters, C. Warren Campbell, William P. Dolan

Student Research Conference Select Presentations

All dice are unfair because they cannot be manufactured with absolute precision. However, some dice are more unfair than others. Each year hundreds of millions of dice are sold worldwide. Dice commonly used in role playing games are 4-sided (D4), 6-sided (D6), 8-sided (D8), 10-sided (D10), 12-sided (D12), and 20-sided (D20). Most of these are manufactured using plastic mold injection and rock tumbler methods. This method can result in dimensional inaccuracies in the dice and sometimes density inhomogeneities. In 3000-roll tests of eleven D20 dice only three tested fair. In a running chi square test it was shown that for …


Weighsted, Vince Heyman, Tatianna Schluep, Timothy Jaworski Apr 2019

Weighsted, Vince Heyman, Tatianna Schluep, Timothy Jaworski

Mechanical Engineering Senior Theses

The purpose of this design thesis is to outline and describe the design project; WeighstEd. WeighstEd, is a data collection, storage, and analysis system for food waste to help Santa Clara University’s Sustainability Center reach a quantifiable food waste reduction goal of 10% by 2020 by using data to make informed cafeteria changes. The report will outline the entire engineering design process from ideation to manufacture including analysis techniques and benchmark testing. This report will serve as a written documentation of three mechanical engineers Senior Design Project completed at Santa Clara University. WeighstEd will be implemented at on campus events …


Improved Molding Tool For Plastics Engineering Technology Injection Molder, Caleb Luthi, Tyler Burger, Andrew Huffman, Paul Herring, Jeanne H. Norton Apr 2019

Improved Molding Tool For Plastics Engineering Technology Injection Molder, Caleb Luthi, Tyler Burger, Andrew Huffman, Paul Herring, Jeanne H. Norton

Posters

Plastic injection molding is an extremely versatile, preferred method of producing plastic parts because it is ex­tremely efficient. In the business of injection molding, it is important to have machines and tools that work prop­erly to get the job done. One such tool is the mold, which forms high quality plastic parts. The main objective of this project is to refurbish the current Frisbee mold to create promotional products for PSU’s Department of Engineering Technology. Parts were created with the existing mold to determine what issues needed to be ad­dressed, including: excessive flash on the parts/runner, a poor runner/gate design, …


Electrocatalytic Properties Of Lanthanum-Based Perovskites For Water Splitting And Energy Storage Applications, Xavier R. Martinez, Khamis Siam, Pawan K. Kahol, Ram K. Gupta Apr 2019

Electrocatalytic Properties Of Lanthanum-Based Perovskites For Water Splitting And Energy Storage Applications, Xavier R. Martinez, Khamis Siam, Pawan K. Kahol, Ram K. Gupta

Posters

Recent changes in global weather patterns have punctuated the need for mollification through a cleaner energy option. As part of the plan, hydrogen production for fuel cells offers substantial power without carbon emissions. Overall water splitting, with the aid of a low cost electrocatalyst could prove to be an abundant green fuel source. Utilizing readily available transition metals, three perovskite nanostructures were studied as a multifunctional material for hydrogen production as well as energy storage. LaCoO₃ (LCO), LaFeO₃ (LFO), and LaMnO₃ (LMO) were synthesized and characterized by X-ray diffraction and then dip coated onto nickel foam as electrodes in a …


Metal-Doped Catalysts For Hydrogen Evolution Reaction, Tucker Morey, Ram K. Gupta, Pawan K. Kahol Apr 2019

Metal-Doped Catalysts For Hydrogen Evolution Reaction, Tucker Morey, Ram K. Gupta, Pawan K. Kahol

Posters

The highly efficient electrochemical hydrogen evolution reaction (HER) provides a promising way to solve energy and environment problems. In this work, various transition metals (Fe, Co, Ni, Cu, Ag, and Pt) were selected to support on molybdenum carbides by a simple organic-inorganic precursor carburization process. X-ray diffraction (XRD) analysis results indicated that the ß-MO₂C phase was formed in all metal-doped samples. X-ray photo­electron spectroscopy analysis indicated that the binding energy of MO₂+ species (MO₂C) shifted to a lower value after metal was doped on the molybdenum carbide surface. Comparing with pure ß-MO₂C, the elec­trocatalytic activity for HER was improved by …


Implementation Of Solar Car Technology, Greg Mccartney, Marcus Allen, Dedrick Cooper, Lelan Delissa, Eric Mayer Apr 2019

Implementation Of Solar Car Technology, Greg Mccartney, Marcus Allen, Dedrick Cooper, Lelan Delissa, Eric Mayer

Posters

Under the leadership of Dr. Erik Mayer, Pittsburg State University hosted the first Kansas Solar Race Competition. The purpose of this competition is to motivate students to learn about different aspects of solar car technology. The competition motivates students by bringing multiple teams together in a friendly competition to test out their uniquely engineered and constructed wireless cars. The cars will compete in different competitions such as an agil­ity competition and a drag race. After the competition, the students are able to learn from the ingenuity of other teams and spark a curiosity to continue to learn about solar car …


Comparison Of Bioplastics With Conventional Thermoplastics For Consumer Applications, Alec Jones, Shelby Bicknell, Luke Gordon, Justin Mamerow, Jeanne H. Norton Apr 2019

Comparison Of Bioplastics With Conventional Thermoplastics For Consumer Applications, Alec Jones, Shelby Bicknell, Luke Gordon, Justin Mamerow, Jeanne H. Norton

Posters

Controversy surrounds the use of plastic products, primarily due to their impact on the environment. Fortunately, bio-based plastics offers a solution by using sustainable resources as starting materials. Our team addressed the task of processing and conducting research on various bio-based plastics that were supplied by an industrial part­ner and comparing the bio-based plastics to control materials from petrochemical sources. Overall, the goal was to determine which bio-based resin would be the most suitable for use in consumer packaging products. Thermal, mechanical, and chemical properties were analyzed. The control resins used were: Formolene 2610A PP, Ineos Olefins & Polymers PP, …


Almond Based Electrocatalyst For Fuel Cell Applications, Kinsey Morey, Tucker Morey, Brooks Neria, Khamis Siam, Pawan K. Kahol Apr 2019

Almond Based Electrocatalyst For Fuel Cell Applications, Kinsey Morey, Tucker Morey, Brooks Neria, Khamis Siam, Pawan K. Kahol

Posters

Hydrogen is considered one of the cleanest energy sources. Water spitting is one of the efficient ways to produce hydrogen as a fuel at the industrial level. Water splitting via electrolysis requires an efficient electrocatalyst to reduce the voltage required for water splitting. Currently, precious metals such as platinum are considered as one of the most efficient electrocatalysts for hydrogen production via electrolysis of water. The current challenge is to find a cost-effective alternative for this process. Molybdenum and carbon are low cost and abundant mate­rials which could be used for the synthesis of cost-effective electrocatalysts for hydrogen production. In …


Asian Women In Stem Industry, Nikhila Bashetty, Tatiana Goris Apr 2019

Asian Women In Stem Industry, Nikhila Bashetty, Tatiana Goris

Posters

The image of engineering as a masculine profession has reproduced the perception that engineering is unsuitable for women. Various strategies have been used to try to increase the number of women entering engineering education and employment, but their success has been limited. This study will provide explicit insights to the problems encountered by the female engineers from Asia. This study will help Asian women engineers’ aspiring careers in American engineering industries to understand the real-life scenario in terms of employment in the USA. It will also help the employers to acknowledge the problems faced by the female engineers and incorpo­rate …


Dmx Controlled Scenic Automation, Hannah Sisney, Tiernan O’Rourke, J. V. Ating Apr 2019

Dmx Controlled Scenic Automation, Hannah Sisney, Tiernan O’Rourke, J. V. Ating

Mechanical Engineering Senior Theses

SwiftScene DMX Control is a safe, simple, and low-cost solution to automated scenery marketed to educational level and low-income theaters. The module is an 18” x 18” electrical enclosure that attaches to the underside of a stage platform and is fully controlled wirelessly via a light board. This is a scaled down prototype meant as a proof of concept and product viability. It is capable of rotational motion and limited linear motion. This prototype meets expectations of traveling at 1 ft/s with acceleration and deceleration at 0.5 ft/s2, but speed and acceleration can be varied based on desired …


Thermistor Sensor Circuit, Jose Fernandez Iii Apr 2019

Thermistor Sensor Circuit, Jose Fernandez Iii

Honors Program Contracts

A series of experiments/labs and lectures were performed to introduce me to the basic understanding needed in the practice of electrical and electronic engineering to tackle this project. I was able to use my textbook, videos online, and my notes to help understand how I was going to build my thermistor sensor circuit. A thermistor is essentially a sensor that can be used in a circuit which detects whenever there is a high source of heat well above room temperature and sends a signal to the circuit or whatever the thermistor is connected to. As simple as it may sound, …


2019 Ieee Southeastcon Hardware Competition: A Systems Engineering Approach, Emily Sage Apr 2019

2019 Ieee Southeastcon Hardware Competition: A Systems Engineering Approach, Emily Sage

Mahurin Honors College Capstone Experience/Thesis Projects

The Institute for Electrical and Electronics Engineers (IEEE) Huntsville section invites college students to participate in their annual SoutheastCon Conference. Western Kentucky University sends a team of engineering students to the hardware competition, an opportunity for students to design and build autonomous robots. The 2019 hardware competition called for students to develop a robot that could collect and sort debris by color. This thesis outlines the project lifecycle of the WKU 2019 SoutheastCon robot with an emphasis on implemented systems engineering tools and techniques. Systems Engineering is an interdisciplinary approach to project management that focuses on treating the overall project …


Automated Atrial Fibrillation Detection From Electrocardiogram, Senbao Lu Apr 2019

Automated Atrial Fibrillation Detection From Electrocardiogram, Senbao Lu

Bioengineering Master's Theses

In this study, a novel Atrial Fibrillation (AFib) detection algorithm is presented based on Electrocardiography (ECG) signals. In particular, the spectrogram of ECG signal is used as an input to a Convolutional Neural Network (CNN) to classify normal and AFib ECG signals. This model is shown to perform well with an accuracy of 92.91% and a value of 0.9789 for the area under the ROC curve (AUC). This study demonstrated the potential of using image classification methods and CNN model to detect abnormal biosignals with noise.