Engineering Commons^™

Bi-Directional Fatigue Life Behavior Of Bovine Meniscus, Jaremy Creechley

Boise State University Theses and Dissertations

Meniscal injuries due to tissue tearing are prevalent in the U.S. yet the failure behavior of the meniscus is poorly understood. Clinical studies indicate that fatigue failure causes many of these tears. The highly circumferentially aligned fibers result in transversely isotropic material properties. Tears preferentially align bi-directionally to the fiber orientation. The aim of this study is to present the bi-directional fatigue life behavior of meniscal fibrocartilage. A novel fatigue life approach was developed to achieve this aim. Forty-eight bovine specimens were subjected to cyclic sinusoidal tension-tension stress at 2 Hz until rupture. Normalized peak tensile stresses were determined at …

Evaluating The Effects Of Major Assumptions In Layered Elastic Theory On Railroad Track Response Prediction Through The Development Of An Improved Track Analysis Software, Sadichchha Sharma

Boise State University Theses and Dissertations

Railway transportation has been recently gaining popularity due to its efficiency and environmental-friendly technology which has led to its increased usage for both passenger and freight transport. For railway transport to be a sustainable component of the transportation infrastructure in the United States, adequate structural and functional design of track components is essential. This is primarily dependent on thorough understanding of track mechanics and track structural response under loading, and can be accomplished through mechanistic analysis of railway track structure response under loading. Considering the need for a mechanistic track analysis program that can serve as a link between the …

Kinetic Control Of Nucleic Acid Strand Displacement Reactions, Xiaoping Olson

Boise State University Theses and Dissertations

Nucleic acids are information-dense, programmable polymers that can be engineered into primers, probes, molecular motors, and signal amplification circuits for computation, diagnostic, and therapeutic purposes. Signal amplification circuits increase the signal-to-noise ratio of target nucleic acids in the absence of enzymes and thermal cycling. Amplification is made possible via toehold mediated strand displacement – a process where one nucleic acid strand binds to a nucleation site on a complementary helix, which then displaces one of the two strands in a nucleic acid complex. When compared to polymerase chain reactions (PCR), the sensitivity and stability of toehold-mediated strand displacement reactions suffer …

Integrated Circuit Design For Hybrid Optoelectronic Interconnects, Kehan Zhu

Boise State University Theses and Dissertations

This dissertation focuses on high-speed circuit design for the integration of hybrid optoelectronic interconnects. It bridges the gap between electronic circuit design and optical device design by seamlessly incorporating the compact Verilog-A model for optical components into the SPICE-like simulation environment, such as the Cadence design tool.

Optical components fabricated in the IME 130nm SOI CMOS process are characterized. Corresponding compact Verilog-A models for Mach-Zehnder modulator (MZM) device are developed. With this approach, electro-optical co-design and hybrid simulation are made possible.

The developed optical models are used for analyzing the system-level specifications of an MZM based optoelectronic transceiver link. Link …

Analog Spiking Neuromorphic Circuits And Systems For Brain- And Nanotechnology-Inspired Cognitive Computing, Xinyu Wu

Boise State University Theses and Dissertations

Human society is now facing grand challenges to satisfy the growing demand for computing power, at the same time, sustain energy consumption. By the end of CMOS technology scaling, innovations are required to tackle the challenges in a radically different way. Inspired by the emerging understanding of the computing occurring in a brain and nanotechnology-enabled biological plausible synaptic plasticity, neuromorphic computing architectures are being investigated. Such a neuromorphic chip that combines CMOS analog spiking neurons and nanoscale resistive random-access memory (RRAM) using as electronics synapses can provide massive neural network parallelism, high density and online learning capability, and hence, paves …

Evaluating The Suitability Of Microbial Induced Calcite Precipitation Technique For Stabilizing Expansive Soils, Sikha Neupane

Boise State University Theses and Dissertations

Expansive soils, also known as swell-shrink soils have been a problem for civil infrastructures including roads and foundations from ancient times. The use of chemical additives such as cement and lime to stabilize expansive soils is a common practice among geotechnical engineers especially for lightly loaded structures. However, several occurrences of subgrade failures were observed after stabilizing with chemical additives hence engineers are in search of sustainable stabilization alternatives. Microbial Induced Calcite Precipitation (MICP) is gaining attention as an environmental friendly soil improvement technique. Several researchers have successfully tested its feasibility in mitigating liquefaction induced problems in sandy soils. This …

Harmonic Scale Transformations, John H. Chalmers

The Transdisciplinary STEAM+ Journal

My artwork derives from a project to delineate the transformations certain types of harmonic musical scales undergo as the sizes of their generating intervals vary over the space of the octave.

Steam In Arabia, Troy Bickham

The Transdisciplinary STEAM+ Journal

In late 2014 Texas A&M University at Qatar, which is a small branch campus focusing on engineering, launched its own STEAM initiative. Its goals are to better integrate the liberal arts into the engineering curriculum and to demonstrate the relevance of the arts to STEM-based education and research. What follows is a description of the initiative and the reception it has received.

Effect Of Ducted Hpwh On Space-Conditioning And Water Heating Energy Use - Central Florida Lab Home, Florida Solar Energy Center, Carlos Colon

FSEC Energy Research Center®

The purpose of this research is to investigate the impact of ducted heat pump water heaters (HPWHs) on space-conditioning and water heating energy use in residential applications. Two identical HPWHs, each with a capacity of 60 gal, were tested side by side at the Flexible Residential Test Facility (FRTF) laboratories on the Florida Solar Energy Center (FSEC) campus in Cocoa, Florida. The FRTF's residential buildings feature the same square footage (1,535 ft2 ), orientation, and envelope characteristics; currently, the only difference between them is the finished floor material. The east FRTF building is furnished with standard carpet flooring, whereas the …

Usu Engineering Professor Wraps Up International Speaking Tour | College Of Engineering, Usu College Of Engineering

College of Engineering News

News Release – Nov. 30, 2016 – Engineers around the world are getting a glimpse into the latest electrical engineering research taking place at Utah State University thanks to the ambitious speaking tour of USU Associate Professor Dr. Rose Hu.

Ijns Masthead

International Journal of Nuclear Security

No abstract provided.

Letter From The Editor - Choe, Kwan Kyoo Choe

International Journal of Nuclear Security

No abstract provided.

The Capacity-Building Support Activities Of The Integrated Support Center For Nuclear Nonproliferation And Nuclear Security Of The Japan Atomic Energy Agency, Yosuke Naoi, Kalman A. Robertson, Naoko Noro

International Journal of Nuclear Security

International cooperation is essential to support states in building the human resources necessary for maintaining and strengthening nuclear security. As the nation’s only comprehensive nuclear research and development institute, the Japan Atomic Energy Agency (JAEA) has long-standing experience developing and operating nuclear technology in all steps of the fuel cycle. The Integrated Support Center for Nuclear Nonproliferation and Nuclear Security (ISCN) was established within the JAEA in December 2010 as Japan’s Center of Excellence for nuclear security. The ISCN provides assistance with capacity building to states throughout Asia and some other regions. The objective of this article is to describe …

Table Of Contents

International Journal of Nuclear Security

No abstract provided.

Development And Implementation Of Post Graduate Nuclear Engineering Education In Nigeria, Ayoade Kuye, Franklin Osaisai

International Journal of Nuclear Security

Nigeria has abundant energy resources that include natural gas, large hydro, coal, nuclear, small hydro, solar (PV and PT), and wind. However, the country's per capita electricity consumption is lower than the African continent’s average. Therefore, there is a need for the diversification of the electricity supply in Nigeria. The government of the Federal Republic of Nigeria has acknowledged that nuclear energy would play a significant role in enhancing the per capita electricity generation. Consequently, the Nigeria Atomic Energy Commission (NAEC), as the national focal agency for developing and harnessing peaceful uses of nuclear energy in Nigeria, developed a strategic …

Call For The Student Writing Competition

International Journal of Nuclear Security

No abstract provided.

Call For Submission

International Journal of Nuclear Security

No abstract provided.

Security Culture And Its Self-Assessment As Supplementary Tools For Nuclear Security Training, Igor Khripunov, Sara Z. Kutchesfahani, Khairul -. Khairul -

International Journal of Nuclear Security

Security Culture and its Self-Assessment as Supplementary Tools for Nuclear Security Training

Igor Khripunov, PhD

Center for International Trade and Security, University of Georgia (USA)

Sara Z. Kutchesfahani, PhD

Center for International Trade and Security, University of Georgia (USA)

Khairul Khairul

National Nuclear Energy Agency of Indonesia (BATAN)

Abstract

Nuclear security culture – an emerging and widely recognized practice – serves as a means to support and enhance nuclear security. In fact, many International Atomic Energy Agency (IAEA) publications and the Nuclear Security Summits have highlighted the vital role of nuclear security culture and raised its status to the same …

Khalifa University Reachback Program Supporting Prevention Of Illicit Nuclear And Radiological Material Smuggling In The United Arab Emirates, Braden Goddard, Alexander A. Solodov, Patrick J. Simmons

International Journal of Nuclear Security

Trafficking of Illicit nuclear or radiological materials is a global threat which can involve and adversely affect any country. Ultimately, it is the responsibility of each state to prevent and combat illicit nuclear trafficking by screening all cargo and travelers entering, exiting, and transiting through its borders. As a part of the national radiation detection infrastructure of the United Arab Emirates (UAE), a reachback program was established at Khalifa University (KU) to provide capabilities for adjudication of radiation alarms at Khalifa Port and other radiation portal monitor (RPM) locations. In addition to the main mission, KU Reachback aims to educate …

Status Of Nuclear Security Education And Research In Bangladesh And Looking Forward, Md. Shafiqul Islam, Md. Mobasher Ahmed

International Journal of Nuclear Security

Bangladesh uses category I of nuclear materials and category 1-5 of radioactive materials in the field of research, medical and industries. The Government is going to implement its first nuclear power plant under an IGA between the Bangladesh and Russian Governments. With the emerging global nuclear and radiological terrorism by potential adversaries, enhancing nuclear security is the paramount importance for the country. The paper has found no established communication channels among stakeholders in order to work in a coordinated and collaborative manner for strengthening the nuclear security. This has resulted lacking importance of education, research, training and knowledge management initiatives …

Letter From The Editor - Frahi-Amroun, Akila Frahi-Amroun

International Journal of Nuclear Security

No abstract provided.

Letter From The Editor - Hirst, Russel K. Hirst

International Journal of Nuclear Security

No abstract provided.

Focused-Based Multifractal Analysis Of The Wake In A Wind Turbine Array Utilizing Proper Orthogonal Decomposition, Naseem Ali, Hawwa Falih Kadum, Raúl Bayoán Cal

Mechanical and Materials Engineering Faculty Publications and Presentations

Hot-wire anemometry measurements have been performed in a 3×3 wind turbine array to study the multifractality of the turbulent kinetic energy dissipation. A multifractal spectrum and Hurst exponents are determined at nine locations downstream of the hub height, bottom and top tips. Higher multifractality is found at 0.5D and 1D downstream of the bottom tip and hub height. The second order of the Hurst exponent and combination factor shows the ability to predict the flow state in terms of its development. Snapshot proper orthogonal decomposition (POD) is used to identify the coherent and incoherent structures and to reconstruct the stochastic …

Ncer Assistance Agreement Annual Progress Report For Grant #83582401 - Assessment Of Stormwater Harvesting Via Manage Aquifer Recharge (Mar) To Develop New Water Supplies In The Arid West: The Salt Lake Valley Example, Ryan Dupont, Joan E. Mclean, Richard C. Peralta, Sarah E. Null, Douglas B. Jackson-Smith

Civil and Environmental Engineering Faculty Publications

The aims of the original proposed project remain the same, that is, to test the hypothesis that Managed Aquifer Recharge (MAR) for stormwater harvesting is a technically feasible, socially and environmentally acceptable, economically viable, and permittable option for developing new water supplies for arid Western urban ecosystems experiencing increasing population, and climate change pressures on existing water resources. The project is being carried out via three distinct but integrated components that include: 1) Monitoring of existing distributed Managed Aquifer Recharge (MAR) harvesting schemes involving a growing number of demonstration Green Infrastructure (GI) test sites; 2) Integrated stormwater/vadose zone/groundwater/ ecosystem services …

Conformationally Superarmed S-Ethyl Glycosyl Donors As Effective Building Blocks For Chemoselective Oligosaccharide Synthesis In One Pot, Mithila Bandara, Jagodige Yasomanee, Nigam Rath, Christian Pedersen, Mikael Bols, Alexei Demchenko

Chemistry & Biochemistry Faculty Works

A new series of superarmed glycosyl donors has been investigated. It was demonstrated that the S-ethyl leaving group allows for high reactivity, which is much higher than that of equally equipped S-phenyl glycosyl donors that were previously investigated by our groups. The superarmed S-ethyl glycosyl donors equipped with a 2-O-benzoyl group gave complete β-stereoselectivity. Utility of the new glycosyl donors has been demonstrated in a one-pot one-addition oligosaccharide synthesis with all of the reaction components present from the beginning.

Large Scale Screening Of Low Cost Ferritic Steel Designs For Advanced Ultra Supercritical Boiler Using First Principles Methods, Lizhi Ouyang

Mathematical Sciences Faculty Research

Advanced Ultra Supercritical Boiler (AUSC) requires materials that can operate in corrosive environment at temperature and pressure as high as 760°C (or 1400°F) and 5000psi, respectively, while at the same time maintain good ductility at low temperature. We develop automated simulation software tools to enable fast large scale screening studies of candidate designs. While direct evaluation of creep rupture strength and ductility are currently not feasible, properties such as energy, elastic constants, surface energy, interface energy, and stack fault energy can be used to assess their relative ductility and creeping strength. We implemented software to automate the complex calculations to …

Cee Dept. Announces Water Cluster Hire | College Of Engineering, Usu College Of Engineering

College of Engineering News

The Department of Civil and Environmental Engineering (CEE) seeks talented applicants for a cluster hire of three tenure eligible positions at the assistant or associate level whose research will yield more holistic approaches to solving water problems in natural, built, and/or agricultural environments. We seek bright, creative and interdisciplinary researchers who can increase Utah State University’s (USU) capacity to lead and develop the next generation of resilient solutions to water problems in these linked environments. We especially seek applicants with the passion and ability to work with others from a broad range of disciplines to advance fundamentally new and innovative …

Flue Gas Desulfurization Apparatus, Kunlei Liu, Joseph Eugene Remias

Center for Applied Energy Research Faculty Patents

An apparatus is provided for removing sulfur oxides from a flue gas stream. That apparatus includes an absorber tower having an upper section and a lower section. A packed bed unit is provided in the upper section of the absorber tower. A first recycling circuit is provided for recycling lime water to the lower section of the absorber. Further the apparatus includes a second recycling circuit for recycling caustic solution to the packed bed unit.

Accuracy Of Patient-Specific Organ Dose Estimates Obtained Using An Automated Image Segmentation Algorithm, Taly Gilat-Schmidt, Adam S. Wang, Thomas Coradi, Benjamin Haas, Josh Star-Lack

Biomedical Engineering Faculty Research and Publications

The overall goal of this work is to develop a rapid, accurate, and automated software tool to estimate patient-specific organ doses from computed tomography (CT) scans using simulations to generate dose maps combined with automated segmentation algorithms. This work quantified the accuracy of organ dose estimates obtained by an automated segmentation algorithm. We hypothesized that the autosegmentation algorithm is sufficiently accurate to provide organ dose estimates, since small errors delineating organ boundaries will have minimal effect when computing mean organ dose. A leave-one-out validation study of the automated algorithm was performed with 20 head-neck CT scans expertly segmented into nine …

An Assessment Of Post-Encroachment Times For Bicycle-Vehicle Interactions Observed In The Field, A Driving Simulator, And In Traffic Simulation Models, Ali Razmpa

Dissertations and Theses

Most safety analysis is conducted using crash data. Surrogate safety measures, such as various time-based measures of time-to-collision can be related to crash potential and used to gain insight into the frequency and severity of crashes at a specific location. One of the most common and acknowledged measures is post-encroachment time (PET) which defines the time between vehicles occupying a conflicting space. While commonly used in studies of motor vehicle interactions, studies of PET for bicycle-vehicle interactions are few. In this research, the PET of bicycle-vehicle interactions measured in the field, a driving simulator, and in a micro-simulation are compared. …