Engineering Commons^™

Investigation Of Mim Structures As Selector Devices For Crossbar Memory Arrays, Peter Vowell

Journal of the Microelectronic Engineering Conference

No abstract provided.

Investigation Of Mim Structures As Selector Devices For Crossbar Memory Arrays, Peter Vowell

Journal of the Microelectronic Engineering Conference

No abstract provided.

Investigation Of Mim Structures As Selector Devices For Crossbar Memory Arrays, Peter Vowell

Journal of the Microelectronic Engineering Conference

As memory continues to scale further and densities continue to increase, leakage current becomes a non-trivial concern. A selector device limits the leakage current from memory elements so that the current passing through a selected device significantly exceeds the residual leakage. An MIM device can be used in conjunction with a memory element to invoke non-linear I-V characteristics. A Ni/TiO2/Ni film stack was chosen for three main reasons: a large non-linearity factor, high on/off current ratio, and bipolar switching capabilities. An on/off ratio of six orders of magnitude was observed, and current densities on the order of 10kA/cm2 were realized …

Tie Layer Technology For Multilayer Coextrusion Of Single-Use Biopharma Bags, Barry A. Morris

Single-use Technologies II: Bridging Polymer Science to Biotechnology Applications

The needs of the demanding biopharma processing bag, such as barrier, toughness and heat sealability, cannot be met by any one polymer. As a result, multiple layers of different polymers, each playing its role in meeting the design requirements, are combined in coextrusion or lamination. Most of the polymers used in these layers do not naturally adhere to each other in the film making or lamination process without tie layers. Tie layers are polymer resins designed to provide adhesion between specific polymers in a given film manufacturing process. In coextrusion, the polymer layers are brought together in the melt state. …

Influence Of Γ-Irradiated Biopharmaceutical Films, Samuel Dorey, Fanny Gaston, Magali Barbaroux,, Nathalie Dupuy, Sylvain R.A. Marque

Single-use Technologies II: Bridging Polymer Science to Biotechnology Applications

Preventing cross-contamination, saving costs and increasing configuration flexibility make the adoption of single-use technologies very attractive for the biopharmaceutical industry. The integrity and the security of bags are due to appropriate flexible and barrier polymeric materials, such as polyethylene (PE) or ethylene vinyl acetate (EVA) and polyethylene-co-vinyl alcohol (EVOH), which are barrier to water vapor and oxygen, respectively. Conventional stainless steel tanks are sterilized by steam sterilization by the end-users, whereas plastic containers are sterilized by gamma-irradiation before delivery. The major advantage of radio-sterilization is the penetration power of the γ-radiation. It is known that γ -sterilization of polyolefin based …

The Journey Of A Polymer Producer To Support Customers E&L Needs, Jerome Vachon

Single-use Technologies II: Bridging Polymer Science to Biotechnology Applications

In the view of SABIC’s ambitions to grow in the Healthcare applications market, a clear understanding of customers’ challenges and problems with respect to Extractables and Leachables is crucial. In addition to ensuring high quality products and compliance with standard regulations, material suppliers must also have a deep knowledge of their product chemistries for specific healthcare applications. Responding to our customers’ needs when performing their own material toxicological assessment, SABIC has continued to develop and share deeper insights into E&L. A growing involvement of SABIC to develop a true E&L knowledge base, from Research to Marketing, has thus been taking …

Triggering The Solar Revolution, Justin Halversen, John Salmon

Journal of Undergraduate Research

The sun’s energy emissions are significantly higher than other alternative energy sources. All other energy sources combined would not provide even one percent of the potential collectible energy from the sun. The amount of potential solar power available is well over 5000 times the current world consumption. Indeed, there is a very large and renewable reservoir of untapped potential solar energy which could be made more directly available to more people.

Stem Summer Camp For K-6 Students At Uvu, Bonnie Andersen, Cyrill Slezak

Utah Space Grant Consortium

UVU offers an excellent academic summer program in the fields of Science, Engineering, Technology, and Mathematics (STEM) specifically designed to engage and further students having completed grades 1-6. Program courses have been developed in close collaboration with experienced STEM endorsed Elementary school teachers and established university research faculty aligned with state curriculum standards. Engaging students within a community of motivated students and enthusiastic faculty in hands-on projects will develop critical thinking, content knowledge, and problem-solving skills.

Bipyrimidine Signatures As A Photoprotective Genome Strategy In G+C-Rich Halophilic Archaea, Daniel L. Jones, Bonnie K. Baxter

Utah Space Grant Consortium

Halophilic Archaea

• Experience high levels of ultraviolet (UV) radiation in their environments

• Demonstrate high resistance to UV • Are protected by pigmentation and efficient DNA repair

• Have high genomic G+C content

Halophiles And Biogeography, Bex Kemp, Adam Wolford, Bonnie Baxter

Utah Space Grant Consortium

Halophilic Archaea

•Halophilic archaea dominate the Earth’s many hypersaline environments such as Great Salt Lake (GSL)

• They are multi-extremophiles, tolerating not only salinity, but also desiccation and high levels of UV irradiation

• Halorubrum is a genus of Halophilic archaea with wide distribution around the Earth

• The distribution of Halorubum across space and time begs the question of the mechanism behind the biogeography.

Analysis Of Oxygen-Conserving Delivery Methods, Jason King, Lara Brewer, Soren Hoehne, Joseph Orr

Utah Space Grant Consortium

•Oxygen therapy is needed to help treat patients with a variety of medical conditions.

•Oxygen conservation methods can be used to deliver oxygen only during beginning of inspiration.

•This can provide the same medical benefits as constant oxygen delivery while using less oxygen and reducing costs.

•These conserving methods include intermittent flow devices and reservoir cannulas.

•Our goal was to optimize a pulse flow and reservoir cannula device for use in children age 5 years and under.

Utah State University Design, Build, Fly 2016-17, Matthew Nelson, Spencer Wendell

Utah Space Grant Consortium

Competition Requirements

•Folding Design

• Entire design must fold and stow in a tube.

• Four Missions

• Ground Test –The whole system, in stowed condition, must survive a drop onto concrete.

• Demonstration Flight –Short flight to verify capabilities.

• Speed Mission –Complete 3 laps with a payload of 3 pucks as fast as possible.

• Endurance Mission –Fly as many laps as possible in 5 minutes with 3 or more pucks.

Using Heart Rate Waveform Patterns And Frequency To Detect Postoperative Airway Obstruction, Anh Pham, Lara Brewer

Utah Space Grant Consortium

Hypoventilation has a high risk of happening during the first 24 hours after the initiation of opioids (drugs used for treating pain) in postoperative patients.

Current techniques to detect airway obstruction either have high false positive rate, delay indicator or ineffective cost.

Our solution is to build a reliable respiratory depression monitoring technique integrated from pulse oximeter waveform pattern signal and its frequency.

Combining Undergraduate Student Curriculum, Research, And Outreach: High Altitude Balloons And Rockets, Eric Davis, Russell Garner, Ryley Shingleton, Brittany Williams, Jason Sheetz, Kim Nielsen

Utah Space Grant Consortium

Student research is known to be a high-impact learning to participating students. At Utah Valley University, we are introducing a student-driven research paradigm where the research is integrated with the undergraduate curriculum and students form their own scientific hypotheses and design experiments to address the science objectives.

Extracting Dna From Salt: Using Picogreen To Explore Detection Limits, Joshua Webb, Luisa Rusta, Erin Tabish, Edgar Chavez, Brett Denney, Bonnie Baxter

Utah Space Grant Consortium

Biological materials surviving in modern halite (salt) on Earth may point to a method for detection of potential or former life in salt deposits on Mars. This project attempts to find an efficient method extracting cells and DNA from modern halite crystals to gain more insight into efficient method of extracting DNA from ancient salt. Our method considers the limitations of Mars Rover techniques in terms of reagents and simplicity. Halite was collected form the north shore of Great Salt Lake, Utah. Through direct experimentation, we designed a filtration system to isolate DNA from salt samples and refined this process …

The Space Survivability Test Chamber, Alexander Souvall, Benjamin Russon, Brian Wood, Gregory Wilson, Jr Dennison

Utah Space Grant Consortium

The Space Survivability Test Chamber (SST) provides an extensive, versatile, and cost-effective system for pre-launch verification and assessment of small satellites, system components, and spacecraft materials. A UNSGC Faculty Research Infrastructure Grant was awarded a for the purpose of making improvements to enhance and extend the capabilities of the SST. Since the SST was brought online in August 2016, several externally funded projects have been completed and collaborative projects with The University of Tsukuba (Japan) and Logan High School (Utah). Many more projects are forthcoming and the capabilities of the SST continue to be improved and developed for the future.

Design Of In-Flight Instrumentation To Characterize A Hybrid Thruster, Stephen Whitmore, Hybrid Thrustuer Usip Team

Utah Space Grant Consortium

The NASA Undergraduate Student Instrument Project (USIP) is a program with the goal to provide hands-on flight project experience to undergraduate programs, and to fly new technology in space to improve Technology Readiness Level (TRL).

Survey Of Mars South Polar Craters For Subsurface Water Ice, John Armstrong, Michael Hernandez, Mars South Pole Survey Team

Utah Space Grant Consortium

Mars' polar ice caps experience seasonal sublimation, the process in which ice skips a liquid state, and moves directly from solid ice to gaseous vapor. Through geospatial analysis, we identify craters, observe geomorphology, then search for correlations with temperature and albedo to study the climate interaction between the surface and atmosphere in a search for liquid water.

The Utah Robotic Mining Project, Jonathan Davies, Utah Mining Robotics Team

Utah Space Grant Consortium

Autonomous robotics technology is improving at an exponential rate, and has the potential to be the largest leap in technology since the invention of the personal computer. Robot Operating System (ROS) [1] is a catalyst in the development of fully autonomous robots. With a large community of developers and many resources available, it allows researchers to focus their time on implementing fully autonomous systems on their robotic platform, instead of spending time developing algorithms.

This research focuses on the development of an autonomous robotic system using ROS, with the purpose of competing in the NASA Robotic Mining Competition [2]. While …

A Robotics Framework For Simulation And Control Of A Robotic Arm For Use In Higher Education, Craig Christensen

MS in Computer Science Project Reports

Robotic arms have been in common use for a several decades now in many areas from manufacturing and industrial uses to hobby projects and amusement park rides. However, there have been very few attempts to make an inexpensive robot arm with a software stack for use in higher education. This paper will outline a control and interfacing software stack built on the Robot Operating System (ROS) and a simulation of the 5 degree of freedom (DoF) robotic arm.

Literature Review: Biomimetic And Conventional Aircraft Wing Tips, Naseeb Ahmed Siddiqui, Waqar Asrar, Erwin Sulaeman

International Journal of Aviation, Aeronautics, and Aerospace

This paper is an attempt to summarize the effect of wing tip devices employed by birds, as well as aeronautical engineers in the past to improve the performance characteristics of aircraft. The focus is on reduction of the induced drag or drag due to lift also known as inviscid drag. This paper will provide an insight on both biomimetic and conventional wing tip approaches to reduce the induced drag. Prior analysis and experiments on the aerodynamics of airplane performance due to both these separate studies have been discussed. The needs of the industry and their past inventions have been described …

Undergraduate Examination Of Pollutant Aerosols In Earth's Atmosphere, Matthew Toon, Tyler Weenig, Zach Collins, Fred Davis, Christopher Maughan, Kyle Strong, Kim Nielsen

Utah Space Grant Consortium

Air pollution can result from both natural and human-caused actions. Natural pollutants may result from events like: forest fires, volcanic eruptions, wind erosion, natural radioactivity, etc. Human pollutants can result from: toxic emissions from vehicles or manufacturing plants, burning fossil fuels, household or farming chemicals released into the air, second hand smoke from tobacco users, etc.

Pollution can obviously have an extremely negative effect on the air quality that we as humans, as well as all living creatures, breathe and depend on for life. Pollution can also negatively impact water and soil by introducing toxins into these resources needed for …

Hapcad, Prototype For The Gaspacs Aeroboom Deployment, Jan J. Sojka, Get Away Special Team

Utah Space Grant Consortium

This past summer the Utah State University Get Away Special Microgravity Research Team tested several of their prototypes on high altitude balloons. They had a total of four balloon launches were they collected a variety of data. Their primary purpose was to test their passive stabilization mechanism called the Aeroboom.

Byu Passive Inspection Cubesats (Pics), David Long, Passive Inspection Cubesat Usip Team

Utah Space Grant Consortium

The BYU Passive Inspection CubeSat (PICS) is the first stage of a series of technology demonstration missions for spacecraft capable of performing inspection, maintenance and assembly on another spacecraft. PICS will demonstrate ultrafast booting and power-up operation of system electronics and the low-risk inspection of the exterior of a spacecraft by a passive, inexpensive flyaway probe. Two flight systems deployed simultaneously will enable the collection of image data from each other as well as the parent spacecraft. Both units include spherical imaging capability using a camera on each face of the 10 cm cube so that attitude control is not …

Integration Host Factor Stabilized Pcr- Amplified Dna For High-Throughput Protein Synthesis Subtitle, William Bradley, Bradley Bundy

Journal of Undergraduate Research

As the search continues for novel proteins with market-incentivized properties, the demand for tools to accelerate the identification of these proteins increases. This has led to investigating methods for screening proteins that yield faster results (high-throughput) with greater titers of protein stable enough for analysis (high yield).

Tissue Engineering: Cell-Seeded 3d Printed Vascular Graft, Tomonori Baba, Alonzo Cook

Journal of Undergraduate Research

The purpose of this project was to create and test a biocompatible modified alginate gel for 3D printing blood vessels to be used in vascular networks for tissue engineering and as vascular grafts. Vascular disease is the leading cause of death in the United States, and more than $100 billion are spent annually for its treatment. Treatments for cardiovascular disease, such as synthetic blood vessels still have some problems with thrombosis and immune rejection. We propose to use the patient’s own cells to form replacement blood vessels, to reduce the risk of immune rejection and the endothelial cells will be …

The Use Of A Passive Endothermic Reactor Cooling System For Lwr Emergency Cooling, Joel Johnson, Dr. Matthew Memmott

Journal of Undergraduate Research

The purpose of the project was to test the viability and begin design on a passive endothermic reaction cooling system (PERCS). The idea behind PERCS is to improve the safety of and to avoid potential disasters resulting from accident conditions in nuclear reactors. To do this, a PERCS will be designed that can be simply integrated into current nuclear power plant systems. The PERCS concepts to date are completely passive; rather than requiring valve or operator actuation, the system initiates due to natural conditions in the reactor system.

Cytosolic Delivery Of Doxorubicin From Liposomes To Multidrug-Resistant Cancer Cells Via Vaporization Of Perfluorocarbon Droplets, Jacob B. Williams, Clara M. Buchanan, Ghaleb Husseini, William G. Pitt

Faculty Publications

A common mechanism of multidrug resistance is the upregulation of efflux pumps in the cancer cells that can more rapidly export unwanted materials (e.g. cancer drugs) out of the cell, compared to sensitive cancer cells. This research seeks to overcome this mechanism by vaporizing a perfluoropentane emulsion droplet inside of a drug-containing liposome (eLiposome) that was endocytosed into a cancer cell. Folate attached to the eLiposome facilitates uptake into the cell as observed by confocal microscopy. Ultrasound was examined as a trigger to initiate the vaporization of the perfluoropentane droplet and release doxorubicin from folated eLipsosomes (feLD). Two seconds of …

Cytosolic Delivery Of Doxorubicin From Liposomes To Multidrug-Resistant Cancer Cells Via Vaporization Of Perfluorocarbon Droplets, Jacob B. Williams, Clara M. Buchanan, Ghaleb A. Husseini, William G. Pitt

Faculty Publications

A common mechanism of multidrug resistance is the upregulation of efflux pumps in the cancer cells that can more rapidly export unwanted materials (e.g. cancer drugs) out of the cell, compared to sensitive cancer cells. This research seeks to overcome this mechanism by vaporizing a perfluoropentane emulsion droplet inside of a drug-containing liposome (eLiposome) that was endocytosed into a cancer cell. Folate attached to the eLiposome facilitates uptake into the cell as observed by confocal microscopy. Ultrasound was examined as a trigger to initiate the vaporization of the perfluoropentane droplet and release doxorubicin from folated eLiposomes (feLD). Two seconds of …

Xdr-500 Mo—Single-Use Fermentor For Microbial Processes, Jozsef Vasi, Andreas Castan, Sandeep Kristiansson

Single-use Technologies II: Bridging Polymer Science to Biotechnology Applications

Single-use bioreactors are well-established in production of biopharmaceuticals in mammalian expression systems. However, a similar technology breakthrough for microbial/yeast-based productions is still awaiting due to the unique requirements associated with such high-cell density cultivations, including high oxygen transfer capacity and efficient heat removal. Here, we present the single-use Xcellerex™ XDR-500 MO stirred-tank fermentor system specifically designed for microbial/yeast applications. The performance of the fermentor was evaluated using an E. coli fed-batch process producing a domain antibody (dAb) as a model system. The process was originally developed for a lab-scale conventional stainless steel system. This work describes the transposition and scale-up …