Religious Devices: A Survey Of Technologies Of Worship., Hugh Davies
Responding to the unannounced spiritual mysticism surrounding contemporary technologies, a religiosity present in the prayer-like devotion of social media piety to the cultish intensity surrounding each iPhone launch, this paper aims to dispel presumptions of the spiritual in opposition to the technological by surveying a range of media devices specifically developed for religious purposes. More than connecting scholarship in technology, media and religion, this survey recommends a new arc in the cultural examination of technology. As curious media artefacts, religious devices are independently worthy of study but they also offer a material past to the so-called “religion of Silicon Valley ...
(Poster) Combining Design And Entrepreneurial Mindset Development: Improved Multifunctional Charging Station, 2019 University of Indianapolis
(Poster) Combining Design And Entrepreneurial Mindset Development: Improved Multifunctional Charging Station, Allison Zwickl, Payton Staman, Evan Parduhn, Jake Smith, David Olawale, Stephen Spicklemire, Rashedul Sarker
ASEE IL-IN Section Conference
It has become imperative to find ways to organize different devices of varying functions and sizes. This problem was introduced to us through customers who believed the current designs on the market could use improvement, or through the lack of organization that they have when charging multiple devices. A solution is a modular concept with a base station that will include a wireless pad and a few charging cords. Additionally customers can purchase specialized add ons that fit into the base station. The housing station will seamlessly charge a plethora of devices including; smart-phones, smart-watches, and speakers in a centralized ...
A Voice Activated Prosthetic Mode Of Control, 2019 University of Nebraska at Omaha
A Voice Activated Prosthetic Mode Of Control, Will Picken
Student Research and Creative Activity Fair
There are many options for a prosthetic mode of control. The most commonly created modes of control involve surface EMG (sEMG) and require that the user have well defined muscle activation in order to trigger the movement of the prosthetic. Unfortunately, many prosthetic users do not have the required muscle tone or strength to trigger these sensors, so the need for a control mechanism that doesn’t rely on sEMG is clear. This study focuses on the development of a low-cost, voice activated prosthetic mode of control compatible with the prosthetics developed by Dr. Zuniga and his research team.
An Electrooculography Prosthetic Control System, 2019 University of Nebraska at Omaha
An Electrooculography Prosthetic Control System, Walker Arce
Student Research and Creative Activity Fair
For many surface EMG (sEMG) prosthetic control systems, the muscles on the affected limb are used to trigger the control system. This can lead to fatigue in the user as they have to maintain continuous muscle activation and coactivation in order to achieve prosthetic control . The crux of any prosthetic control system is the human machine interface that is developed, and at present many control systems have complicated interfaces that limit the degrees of freedom of the prosthetics. This study focuses on the development of a low-cost prosthetic control peripheral that is compatible with the prosthetics developed by Dr ...
A Radio Frequency Identification (Rfid) Prosthetic Control System, 2019 University of Nebraska at Omaha
A Radio Frequency Identification (Rfid) Prosthetic Control System, Andrew Butler
Student Research and Creative Activity Fair
Item classification and tagging in embedded systems has become ubiquitous in our society due to radio frequency identification (RFID) and the cost has dropped significantly for hardware that can interact with these devices. Due to this, possibilities in the realm of prosthetic control systems opens up for dynamic grip selection without user intervention. This study focuses on the development of a device capable of this functionality that is compatible with the prosthetics designed by Dr. Zuniga and his research team.
The printed circuit board (PCB) was designed using the EAGLE EDA package and incorporates a lithium polymer battery with a ...
Reactive Ion Etching Selectivity Of Si/Sio2: Comparing Of Two ﬂuorocarbon Gases Chf3 And Cf4, 2019 Singh Center for Nanotechnology
Reactive Ion Etching Selectivity Of Si/Sio2: Comparing Of Two ﬂuorocarbon Gases Chf3 And Cf4, Meiyue Zhang, Pat Watson
Protocols and Reports
Two reactive ion etching (RIE) processes were studied to show the relative etch selectivity between SiO2 and Si using two ﬂuorocarbon gases, CF4 and CHF3. Results show that CHF3 gives better selectivity (16:1) over CF4 (1.2 :1). On the other hand, the etch rate of SiO2 of CF4 is approximately 52.8 nm/min, faster than CHF3 (32.4 nm/min).
Experimental Study And Modeling Of The Gm-I Dependence Of Long-Channel Mosfets, 2019 California Polytechnic State University, San Luis Obispo
Experimental Study And Modeling Of The Gm-I Dependence Of Long-Channel Mosfets, Michael Fong Cheng
Master's Theses and Project Reports
This thesis describes an experimental study and modeling of the current-transconductance dependence of the ALD1106, ALD1107, and CD4007 arrays. The study tests the hypothesis that the I-gm dependence of these 7.8 µm to 10 µm MOSFETs conforms to the Advanced Compact Model (ACM). Results from performed measurements, however, do not support this expectation. Despite the relatively large length, both ALD1106 and ALD1107 show sufficiently pronounced ‘short-channel’ effects to render the ACM inadequate. As a byproduct of this effort, we confirmed the modified ACM equation. With an m factor of approximately 0.6, it captures the I-gm dependence with sub-28 ...
Design And Optimization Of An Ionizing-Radiation-Free Dental Imaging Scheme By Near Infrared Fluorescence, 2019 Louisiana State University
Design And Optimization Of An Ionizing-Radiation-Free Dental Imaging Scheme By Near Infrared Fluorescence, Thomas Hartzler
LSU Master's Theses
There is a global need for access to oral health care. Proper oral health care is necessary for physiological and psychological health, as well as social and economic issues. Major oral diseases that must be screened include caries, cracked teeth, and impacted molars. These diseases are screened and diagnosed using a variety of medical imaging methods, computed tomography (CT) X-ray being the most popular and efficient method. The challenges in screening with X-ray technology include financial and time cost as well as health risk, including radiation exposure induced cancer (REIC). This thesis summarizes research to explore the possibility of overcoming ...
Vhf Transmitter Development For Wildlife Tracking, 2019 Grand Valley State University
Vhf Transmitter Development For Wildlife Tracking, Bryan Westra
Wildlife biologists often use collars with VHF transmitters to gather wildlife data. The purpose of this project is to determine the best approach to designing a wildlife tracking VHF transmitter on a Printed Circuit Board (PCB). A variety of frequency generation methods were considered for the transmitter, including transistor-based crystal oscillators and chip based solutions from the chip manufacturers Analog Devices and Silicon Labs. Prototypes of the feasible options were built and evaluated for cost, power consumption, efficiency, size, frequency range, signal bandwidth, and frequency stability. It was found that the Silicon Labs Si4010 chip was the best solution based ...
Weed And Crop Discrimination Through An Offline Computer Vision Algorithm, 2018 Olivet Nazarene University
Weed And Crop Discrimination Through An Offline Computer Vision Algorithm, Phillip J. Putney
With the recent global interest in organic farming and cultivation, many people are turning away from chemical-based herbicides and moving towards alternate methods to extirpate weeds living amongst their crops. Of the methods proposed, robotic weed detection and removal is the most promising because of its possibility to be completely autonomous. Several robust, fully-autonomous robots have been developed, although none have been approved for commercial use. This paper proposes a weed and crop discrimination algorithm that utilizes an excessive green filter paired with principal component analysis to detect specific spatial frequencies within an image corresponding to different types of weeds ...
A Computational Analysis Of The Gradient Concentration Profile Of Deet And The Mosquito Behavioral Response, 2018 The University of Southern Mississippi
A Computational Analysis Of The Gradient Concentration Profile Of Deet And The Mosquito Behavioral Response, Brandon Carver
DEET is a common active ingredient in most spatial repellents. DEET is also a volatile organic compound. DEET prevents mosquitoes from detecting and coming into contact with an human individual. Gas sensing technologies such as metal oxide semiconductor sensors can detect VOCs. The World Health Organization provides the majority of efficacy testing methods. This research adapts methods from the WHO and use of MOS sensors to further understand how and why DEET affects mosquitos. A custom developed system is used to measure DEET dissipation and observe mosquito behavioral response to the DEET. DEET dissipations and mosquito behavior is measured within ...
Current Implementation Of The Flooding Time Synchronization Protocol In Wireless Sensor Networks, 2018 The University of Western Ontario
Current Implementation Of The Flooding Time Synchronization Protocol In Wireless Sensor Networks, Asma Khalil
Electronic Thesis and Dissertation Repository
Time synchronization is an issue that affects data accuracy within wireless sensor networks (WSNs). This issue is due to the complex nature of the wireless medium and can be mitigated with accurate time synchronization. This research focuses on the Flooding Time Synchronization Protocol (FTSP) since it is considered as the gold standard for accuracy in WSNs. FTSP minimizes the synchronization error by executing an algorithm that creates a unified time for the network reporting micro-second accuracy. Most synchronization protocols use the FTSP implementation as a benchmark for comparison. The current and only FTSP implementation runs on the TinyOS platform and ...
Smart Iot Sprinkler System, 2018 CUNY New York City College of Technology
Smart Iot Sprinkler System, Galib F. Rahman
Publications and Research
The average family spends more than $1000 in water costs per year. One-way water is commonly wasted in many households is via inefficient sprinkler systems for lawns. Current technology has enabled the development of automatic sprinkler systems, which can be preconfigured to operate at desired times of day and intervals. Although these systems may reduce the amount of water utilized overall, they are not weather forecast aware. In situations when rainfall is upcoming the systems still water the lawn. In this project, we plan to implement a smart sprinkler system that has full awareness of upcoming weather and take account ...
3d Signal Strength Mapping Of 2.4ghz Wifi Networks, 2018 California Polytechnic State University, San Luis Obispo
3d Signal Strength Mapping Of 2.4ghz Wifi Networks, Brett D. Glidden
Many commercial businesses operate out of multi-story office buildings. These companies often use many Wi-Fi access points to set up their own wireless network. IT personnel determine proper Wi-Fi access point placement using Wi-Fi strength maps. Conventional Wi-Fi strength maps only provide a two-dimensional view representing the wireless access point's effective range. The signal quality and strength measurements do not include changing vertical elevation. Efficient network layout in a multi-story building requires a system calculating signal quality metrics in three dimensions.
This project involves designing and prototyping a system to achieve 2.4GHz Wi-Fi signal quality measurements in a ...
Dc-Dc 4-Switch Buck-Boost Converter For Energy Harvesting From Elliptical Machines, 2018 California Polytechnic State University – San Luis Obispo
Dc-Dc 4-Switch Buck-Boost Converter For Energy Harvesting From Elliptical Machines, Alexander C. Samietz, Gustavo Guzman
The senior project report documents the process of replacing the network of resistors inside an elliptical machine with a DC-DC buck-boost converter. The buck-boost DC-DC converter accepts a wide input range of 5-60 Volts, with an output of 36 Volts for the most efficient use of the already available microinverter. The microinverter reclaims the lost energy and safely distributes it back to the electrical grid. The addition of this project reduces heat emissions from wasted energy and shrinks the carbon footprint of its users.
Distance-Based Cluster Head Election For Mobile Sensing, 2018 Technological University Dublin
Distance-Based Cluster Head Election For Mobile Sensing, Ruairí De Fréin, Liam O'Farrell
Energy-efficient, fair, stochastic leader-selection algorithms are designed for mobile sensing scenarios which adapt the sensing strategy depending on the mobile sensing topology. Methods for electing a cluster head are crucially important when optimizing the trade-off between the number of peer-to- peer interactions between mobiles and client-server interactions with a cloud-hosted application server. The battery-life of mobile devices is a crucial constraint facing application developers who are looking to use the convergence of mobile computing and cloud computing to perform environmental sensing. We exploit the mobile network topology, specifically the location of mobiles with respect to the gateway device, to stochastically ...
A Novel Ultrasound Imaging Technique Using Random Signals, 2018 Southern Methodist University
A Novel Ultrasound Imaging Technique Using Random Signals, Anahita Khalilzadeh
Electrical Engineering Theses and Dissertations
Ultrasound imaging has been used extensively because of its benign nature and relatively low cost implementation. The most common approach for forming an image is Brightness Mode (B-Mode), which uses an array with dynamic focusing. Focus is performed through Phase Shifters that are bulky and complicated components which increases the device cost.
This research describes a new method to form an Ultrasound image, without relying on phase shifting. The proposed method offers a lower cost solution compared to the B-Mode systems and overcomes some of their inherent limitations.
Furnace System Improvements, 2018 California Polytechnic State University, San Luis Obispo
Furnace System Improvements, Kenji K. Anzai, Ethan Fedor, Patrick Zailaa
This Final Design Review (FDR) documents the work done by the group to manufacture the system to deliver improvements to the furnace in the Cal Poly microfabrication laboratory (better known as the cleanroom). The document describes the material covered in the Scope of Work (SOW), including background research, customer needfinding, and the problem statement, material associated with concept development and selection for Preliminary Design Review (PDR), material detailing the design and manufacturing plan of the system for Critical Design Review (CDR), and new material detailing the manufacture of the system for FDR.
Research done for the SOW resulted in a ...
Stability Analysis Of A High-Power Microgrid, 2018 University of Arkansas, Fayetteville
Stability Analysis Of A High-Power Microgrid, David Manuel Carballo Rojas
Theses and Dissertations
The objective of this thesis is to perform the modeling and stability analysis of a high-power microgrid with multiple parallel-and grid connected voltage source converters using the system parameters from the high-power microgrid testbed at the National Center for Reliable Electric Power Transmission (NCREPT) at the University of Arkansas in order to identify, minimize, if not eliminate, the potential instabilities that can affect the proper operation of the microgrid testbed. To achieve this objective, the mathematical modeling of the high-power microgrid considering the adverse effects of resonances due to interactions among the converter LCL output filters is presented and analyzed ...
Fully Analog Laser Driver With Robust Active Feedback Control, 2018 University of Arkansas, Fayetteville
Fully Analog Laser Driver With Robust Active Feedback Control, John Petrilli
Theses and Dissertations
The objective of this project was to go through a real life engineering development cycle, document and justify the design choices, and use background experience in electronic design and control systems to implement the best design possible. The laser driver implemented in this project is designed for the general use of a large variety of diodes in continuous wave mode, much like off the shelf laser drivers. The design goals included improving upon off the shelf laser drivers by decreasing steady state error, setting time, response time, and overshoot. Many different feedback control systems were evaluated, and a modified PID ...