Engineering Commons^™

Irradiation Induced Elongation Of Fe Nanoparticles Embedded In Silica Films, E. A. Dawi, T. Ommar, R. Ackermann, A. A. Karar

Research outputs 2014 to 2021

© 2020 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. Irradiation with swift heavy ions causes the deformation of Ferric nanoparticles in direction of the ion beam. Fe nanoparticles with mean diameter of about 20 nm were prepared by gas flow sputtering and subsequently confined within silica films. Two silica films wherein two different densities of Fe nanoparticles are encapsulated were irradiated with 50 MeV Ag ions with fluences of few 1014 ions.cm−2 at 300 K and normal incidence. Transmission electron microscopy analysis shows that the spherical Fe nanoparticles are deformed into prolate nanorods aligned …

Bibliometric Survey On Impact Of Sound Therapy On Blood Pressure And Covid-19., Vaishali Rajput, Preeti Mulay

Library Philosophy and Practice (e-journal)

The current situation of spread of Corona Virus is really worth to worry and critical. As we are moving from stage 2 to stage 3, it is really our duty and right to prevent its spread effectually, as its threat to life of every individual. As per the expert opinion from Health Organizations, the elder people are most at risk of Corona infection. But if the people with high blood pressure or high cholesterol fail to take their prescribed medication, then they are also prone to various infections, due to low immunity levels. Along with regular medication, Sound Therapy is …

Collaborative Sharing Of Multidimensional Space-Time Date In A Next Generation Hydrologic Information System, Tian Gan, David G. Tarboton, Jeffery S. Horsburgh, Pabitra Dash, Ray Idaszak, Hong Yi

Civil and Environmental Engineering Faculty Publications

In hydrologic research, there is a need to manage, archive, and publish data in a discoverable way to increase data reuse, transparency, and reproducibility. Multidimensional space-time data are commonly used in hydrologic research, and systems are needed for sharing and exchanging such data. Simply exchanging files may result in loss of metadata information and can be challenging when files are large. We developed an approach to manage, share, and publish multidimensional space-time data in HydroShare, a next generation hydrologic information system and domain specific repository. This paper presents the design, development, and testing of this approach. We selected the Network …

Characterization Of The Factors Influencing Retained Austenite Transformation In Q&P Steels, Derrik David Adams

Theses and Dissertations

Formable Advanced High-Strength Steels (AHSS) have a unique combination of strength and ductility, making them ideal in the effort to lightweight vehicles. The AHSS in this study, Quenched and Partitioned 1180, rely on the Transformation Induced Plasticity (TRIP) effect, in which retained austenite (RA) grains transform to martensite during plastic deformation, providing extra ductility via the transformation event. Understanding the factors involved in RA transformation, such as local strain and grain attributes, is therefore key to optimizing the microstructure of these steels. This research seeks to increase understanding of those attributes and the correlations between microstructure and RA transformation in …

Three-Dimensional Hydrodynamic Focusing For Integrated Optofluidic Detection Enhancement, Erik Scott Hamilton

Theses and Dissertations

The rise of superbugs, including antibiotic-resistant bacteria, and virus outbreaks, such as the recent coronavirus scare, illustrate the need for rapid detection of disease pathogens. Widespread availability of rapid disease identification would facilitate outbreak prevention and specific treatment. The ARROW biosensor microchip can directly detect single molecules through fluorescence-based optofluidic interrogation. The nature of the microfluidic channels found on optofluidic sensor platforms sets some of the ultimate sensitivity and accuracy limits and can result in false negative test results. Yet higher sensitivity and specificity is desired through hydrodynamic focusing. Novel 3D hydrodynamic focusing designs were developed and implemented on the …

Bootstrap Statistics, Greg Hutto

Operations Management Presentations

Bootstrap Statistics is an intuitive approach to learning statistics because of its simplicity, freedom from assumptions and wide applicability. This webinar will refresh your knowledge of statistics and give you intuitive tools to apply concepts. We will deduce robust methods to build point estimates, interval estimates and assert differences or similarities. If time permits, we’ll even evaluate statistical power! And we’ll do it all with only one major assumption and no curtain of math or normal theory clouding our procedures. The webinar will be accompanied by three papers, tool references, slides and a sample data set with solutions.

The Challenge Of Calculating U-Factors For Cold-Formed Steel C-Shape Wall Assemblies Using Framing Factors, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

Development Of A U-Factor Calculation Procedure For Cold-Formed Steel C-Shaped Clear Wall Assemblies, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

Loading Orientation Dependence On The Compressive Response Of Ice-Templated Ceramic-Polymer Composites, Sashanka Akurati, Justine Marin, Dipankar Ghosh

College of Engineering & Technology (Batten) Posters

Natural materials are made from weak constituents, yet exhibit an excellent synergy of high stiffness, strength, and damage-tolerance. They consist of alternate layers of the hard and soft phases with a complex hierarchical structural organization. The ice-templating technique provides an approach to fabricate multilayered architectures for engineering applications. In this technique, an aqueous ceramic suspension is solidified unidirectionally leading to phase separation into alternating layers of ice-crystals and ceramic particles. Ice-crystals are sublimated by freeze-drying process and resultant ceramic foams are sintered to impart strength. The fabricated sintered ceramic foams contain alternate layers of oriented ceramic lamella walls and pores. …

Drone Proximity Detection Via Air Disturbance Analysis, Qian Zhao, Jason Hughes

Faculty Publications

The use of unmanned aerial vehicles (drones) is expanding to commercial, scientific, and agriculture applications, including surveillance, product deliveries and aerial photography. One challenge for applications of drones is detecting obstacles and avoiding collisions. A typical solution to this issue is the use of camera sensors or ultrasonic sensors for obstacle detection or sometimes just manual control (teleoperation). However, these solutions have costs in battery lifetime, payload, operator skill. We note that there will be an air disturbance in the vicinity of the drone when it’s moving close to obstacles or other drones. Our objective is to detect obstacles from …

Medication Errors Within The Clinical Setting: A Quality Improvement Project, Gracie Smith, Mary Thornburg, Connor Noble, Breanna Markwell, Sarah Rigsby, Suzi White

2022 Celebration of Student Scholarship - Poster Presentations

During a clinical rotation at a large urban teaching hospital, the occurrence of medication errors noted resulted in negative impacts on patient wellness. Research studies indicate that the U.S. spends more than $40 billion each year as a result of medication errors. A large portion of these medication errors are preventable. A thorough literature review of 40 research studies was conducted to identify issues associated with medication errors. This quality improvement project aims to identify the prevalence of medication errors, their effect on patient wellness, its monetary effects in healthcare, and what preventative interventions can be implemented to prevent such …

Water Scarcity And Fish Imperilment Driven By Beef Production, Brian D. Richter, Dominique Bartak, Peter Caldwell, Kyle Fankel Davis, Peter Debaere, Arjen Y. Hoekstra, Tianshu Li, Landon Marston, Ryan Mcmanamay, Mesfin Mekonnen, Benjamin L. Ruddell, Richard R. Rushforth, Tara J. Troy

Daugherty Water for Food Global Institute: Faculty Publications

Human consumption of freshwater is now approaching or surpassing the rate at which water sources are being naturally replenished in many regions, creating water shortage risks for people and ecosystems. Here we assess the impact of human water uses and their connection to water scarcity and ecological damage across the United States, identify primary causes of river dewatering and explore ways to ameliorate them. We find irrigation of cattle-feed crops to be the greatest consumer of river water in the western United States, implicating beef and dairy consumption as the leading driver of water shortages and fish imperilment in the …

Engineering At San Jose State University, Spring 2020, San Jose State University, Charles W. Davidson College Of Engineering

Engineering at San Jose State University

No abstract provided.

Engineering News, Spring 2020, School Of Engineering

Engineering News

No abstract provided.

Illuminator, Volume 3, Issue 8, Batten College Of Engineering & Technology, Old Dominion University

College of Engineering & Technology Newsletter

April 2020 issue of Illuminator, a monthly publication of ODU's Batten College of Engineering and Technology.

Using Scrap Tires As An Aggregate In Chip Seal - Phase Ii, Alireza Pourhassan, Ahmed Gheni, Mohamed Elgawady

Civil, Architectural and Environmental Engineering Technical Reports

Chip seals are one of the most cost and performance effective pavement preservation treatments commonly used in the United States. An eco-friendly chip seal pavement, in which the natural aggregate was replaced by crumb rubber obtained from scrap tires, was recently developed by the research team at Missouri S&T, creating rubberized chip seal. This project investigated and optimized the performance of rubberized chip seal under different scenarios. During this project, laboratory chip seal specimens with different sizes were prepared and tested under simulated traffic loads with different loading parameters and environmental conditions. Also, the feasibility of the implementation and performance …

Investigating The Experimental Process For Partial Replacement Of Cement With Sugarcane Bagasse In The Construction Industry, Amany G. Micheal Prof., Rania Moussa, Nadin Dawoud

Centre for Advanced Materials

In the last few decades there has been speedily increasing in the agriculture and industrial wastes. This causes many environmental issues and raises the potential to contaminate the natural resources of living such as water, air and soil. Recently, the amount of organic waste produced daily has been rising, while it is poorly managed. It is either burned or disposed improperly, which effect negatively the environment and public health. On the other hand, during the cement production process many wastes, and pollutants are generated which have major negative impacts on the environment. Cement is considered as a substantial constituent of …

Evaluating The Effects Of Electric And Magnetic Loading On The Performance Of Single And Double Rotor Axial Flux Pm Machines, Narges Taran, Greg Heins, Vandana Rallabandi, Dean Patterson, Dan M. Ionel

Power and Energy Institute of Kentucky Faculty Publications

Axial flux PM (AFPM) machines are used particularly in applications requiring a compact structure. Their disc shape topology and axial air-gap have led to a variety of configurations including two popular ones: the yokeless and segmented armature (YASA), and the single-stator single rotor or single sided machine. In this study, a comprehensive comparative analysis of these configurations is conducted at different magnetic and electric loadings. It is found that at lower loadings, typically employed for air-cooled machines, the torque/ampere characteristics of the YASA machine are almost identical to those of a single sided machine constructed with half the magnet volume. …

Craft Academy Solar Powered Racing (Caspr) Team, Andrew Dorn, Ally Hall, Bryce Watkins, Hayley Milner, Kaleb Trent, Owen Day, Sawyer Putnam, Joyce Stubbs, Steve Stubbs

2022 Celebration of Student Scholarship - Poster Presentations

The ultimate goal of the CASPR team is to build a solar powered car to race in the solar car for the Solar Car Challenge Classic Division, and race in a cross-county race or at the famous Texas Motor Speedway. The car must have taillights, blinkers, headlights, and extra suspension. For the fall semester of 2021, we researched different parts and other solar cars to see what would be the best fit most beneficial. We were able to find all the parts needed for the construction of the car. The Solar Car Challenge website provides some resources to make finding …

Simulating Cement Hydration Using Hydcem, Niall Holmes, Denis Kelliher, Mark Tyrer

Articles

HYDCEM is a new cement hydration model to simulate volumetric changes and predict phase assemblage, degree of hydration, heat release, compressive strength and chemical shrinkage over time for PC and limestone binders undergoing hydration for any w/c ratio and curing temperatures between 5 and 45 °C. While models should never completely remove experimental analysis, they are an aid to better understand cement hydration and microstructure development by allowing users analyse different binders in a relatively short time. HYDCEM, written in MATLAB®, is aimed at complementing more sophisticated thermodynamic models giving users a reasonable prediction of hydration behaviour over time, using …

Design And Analysis Of A Piezoelectric Pulse Wave Velocity Sensor, Haley Richards, Andrew Closson, John Xj Zhang

ENGS 88 Honors Thesis (AB Students)

Pulse Wave Velocity (PWV) is strongly correlated with blood pressure and a valuable biomarker in assessing hypertension. This report evaluates the feasibility of noninvasive blood pressure determination from piezoelectric PWV measurements. A wearable piezoelectric prototype was developed to detect PWV in the radial artery, and a computational model of the sensor was designed to simulate a piezoelectric sensor response under ideal conditions. These methods provide insight into the relationship between PWV and blood pressure, and the ability of piezoelectric materials to detect blood flow characteristics. This work lays the groundwork for future device development in this field.

Engineering A Switchable Nanosystem For Customizable Therapeutics, David Diebold, Hanzhe Chen

Bioengineering Senior Theses

Exosomes are nanovesicles that are naturally secreted by mammalian cells in vivo for intercellular communications. Due to their inherent targeting ability, exosomes have a potential for therapeutic applications. However, due to their physiological derivation, the isolation of engineered exosomes has been a major obstacle to their therapeutic application, and successful disease-targeting has been difficult to control. Recently, we have developed an exosome technology that borrows from switchable Chimeric Antigen Receptor (sCAR) T-Cell Therapy and Strep-tag engineering to overcome these obstacles. Here, we describe the development of a de novo method to produce genetically modified exosomes with switchable targeting ability and …

Predicting Depression Progression Rates In Radiotherapy Patients, Ardella Phoa, Joshua Vincent, Shani Williams

Bioengineering Senior Theses

Cancer is a highly prevalent disease that affects millions of people worldwide. In addition to the physiological effects of the disease, cancer patients are more likely to be diagnosed with Major Depressive Disorder (MDD). Unfortunately, prior research has shown that MDD can also decrease the efficacy of radiotherapy cancer treatments. Currently, there is no way to predict, prevent, or mitigate this comorbidity, preventing physicians from administering supplemental therapies. In this paper, we propose a low-cost and efficient computational tool that can be utilized to quantify a patient’s likelihood of developing depression. To do so, we used PET images and a …

Identifying Opportunities For Educators To Pursue Collaboration At The Interface Of Nursing And Engineering -- And A Word Of Caution, Daniel B. Oerther, Patricia Yoder-Wise, Beverly Malone

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

No abstract provided.

Team Creation Methods In Practice: Understanding The Potential Effects Of Nonverbal Communication In The Leadership Of Team Formation, Troy Allen Robertson

Dissertations

Teams require leadership, even if they are self-managed. The group of individuals who make up a team must be gathered in some form or another. For self managed teams to function successfully, the first step is the process of creating the team. Many aspects may factor into the creation process. Often time is of the essence and methods to quickly assess and form teams show merit. First impressions in general are based largely on nonverbal communication. The focus of this mixed-methods concurrent embedded study is to analyze the potential effects of nonverbal communication on influencing team creation. A group of …

In Vivo Non-Ribosomal Protein Synthesis In Mammalian Cells, Akhil Choppa

Bioengineering Master's Theses

The mechanism of Sortase A substrate specificity has been widely studied and applied to many approaches to bioconjugation. Current research includes transpeptidation between peptide nucleotide acids, polypeptides, viruses, or antibodies. These applications help improve drug targeting and delivery. Scientists have performed Sortase A-mediated protein ligation in vitro. This project proposes an in vivo protein ligation method with Sortase A. In this design, Sortase A acts as a catalyst to initiate bioconjugation between the LPETG motif and pentaglycine (Gly5) chain to express GFP. This technique bypasses the ribosome and offers an alternative way to synthesize protein in mammalian cells. Three recombinant …

Robust Secure Wireless Powered Miso Cognitive Mobile Edge Computing, Boyang Liu, Jiajia Song, Jin Wang, Haijan Sun, Qun Wang

Electrical and Computer Engineering Student Research

Wireless power transfer (WPT) and cognitive radio (CR) are two promising techniques in designing mobile-edge computing (MEC) systems. In this paper, we study a robust secure wireless powered multiple-input single-output (MISO) cognitive MEC system, which integrates several techniques: physical-layer security, WPT, CR, underlay spectrum sharing and MEC. Three optimization problems are formulated to minimize the total transmission power (TTP) of the primary transmitter (PT) and the secondary base station (SBS) under perfect channel state information (CSI) model, bounded CSI error model and the probabilistic CSI error model, respectively. The formulated problems are nonconvex and hard to solve. Three two-phase iterative …

Scu Faculty & Staff Housing Development, Ayo Ogunfunmi, Deirdre Bonitz, Rachael Han, Spencer Saito

Civil, Environmental and Sustainable Engineering Senior Theses

Due to the high housing costs in the Bay Area, Santa Clara University’s (SCU) faculty and staff have to live further away from campus where the housing market is more affordable, ultimately increasing their commute time and increasing the environmental impact due to transportation. Therefore, SCU has expressed the need to provide affordable housing for their faculty and staff who do not earn enough income to be able to live in the City of San Jose or County of Santa Clara. The project proposed in this report represents the efforts of SCU Civil Engineering students to adhere towards the social, …

Air Quality Analysis Of Merrimack College, Patrick J. Mckeown

Honors Program Contracts

No abstract provided.

3dscanner, Thomas Heckman, Robert Kalb, Shreyes Nallan

Electrical and Computer Engineering Senior Theses

This project entails designing, prototyping, and testing a 3D scanner. The device that we are building uses LIDAR to take position data of a 3D object, then analyze and encode the sensor data as an STL file that can later be 3D printed out at the same resolution. We aim to build an affordable, high-performance 3D scanner that takes advantage of the falling cost of LIDAR in order to bring 3D scanning capabilities to individuals, the maker community, and even small businesses.

We begin this process by choosing a sensor, the YDLIDAR X4, as our primary method of taking position …