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Actuation And Stabilization Of Volume-Efficient Origami-Inspired Mechanisms, Hunter T. Pruett

Theses and Dissertations

Trends in the aerospace industry are driving payloads to be smaller and less expensive while yet delivering comparatively large antennas. Deployable reflectarray antennas (RA) are the object of much research to meet these demands because they operate in a flat plane and are easier to stow than parabolic reflector antennas. Because they operate in flat plane, deployable RAs are well-suited to thickness-accommodated origami-inspired mechanisms. This work addresses pattern selection and modification, thickness accommodation, actuation, and stabilization of origami-inspired mechanisms intended to be used as RAs. First, a modified Miura-ori pattern termed volume-efficient Miura-ori (VEMO) is introduced, selected for its ability …

Multiscale Analysis Of Thermal Barrier Coated Cfrp Composites Under Thermal Loading, Devin Nielsen, Trenton M. Ricks, Juhyeong Lee

Mechanical and Aerospace Engineering Student Publications and Presentations

Carbon-fiber reinforced polymer (CFRP) composites are commonly used in high performance applications. Although offering several advantages (i.e., superior specific properties and improved structural rigidity), traditional CFRP composites often exhibit poor thermal stability due to a low matrix thermal decomposition temperature. The effective operating temperature of the CFRP composites can be raised by applying an outermost, protective thermal barrier coating (TBC) layer. Prefabricated high void content ceramic TBCs are ideal for composite applications due to their high thermal stability and relatively low thermal conductivity. In this paper, the thermo-mechanical response of the TBCCFRP composite laminate subjected to 500°C are assessed through …

Magnetic Resonance Imaging Of Ultrasound Fields For Visualization And Measurement Of Pressure Amplitudes, Paul-Emile Victor Passe-Carlus

Theses and Dissertations

In vivo pressure estimations for therapeutic ultrasound has the potential of rendering treatments using non-invasive ultrasound targeting safer and more reliable. By quantifying pressures and their respective spatial locations, better acoustic predictions and models can be made. In this thesis, we aim to measure a pressure field from a piezo-electric transducer through a ballistic gel medium by using an external gradient coil to encode the pressure field in a way that can be read and quantified using an MRI scanner. We describe the methods and the results pertaining to visualizing a pressure field. The setup was able to capture pressure …

Development Of Temperature Measurement And Control Of 3d Printed Microfluidic Devices Towards Biomolecular Analysis, Derek A. Sanchez

Theses and Dissertations

Microfluidics are devices with channels or reservoirs that have dimensions in the range of micrometers. They have an increasing role in biological analysis processes due to their ability to use very small sample volumes. Many microfluidic processes rely heavily on precise temperature measurement and control. Advances in 3D printing have led to high resolution digital light processing stereolithography (DLP-SLA) printers capable of using bio-compatible materials, available at BYU. This custom 3D printer has a resolution of 7.6 µm in the XY plane and 10 µm in the Z axis. Combined with a custom-made resin, we can produce microfluidic features as …

Design And Analysis Of Optimal Energy Efficient Routing Protocols For Lifetime Maximization And Qos Enhancement In Wireless Body Area Networks, Karthikeyan S

Theses and Dissertations

In recent times, Wireless Body Area Networks (WBAN) a subsection of Wireless Sensor Networks (WSN) a promising technology for the future healthcare realm with cutting-edge technologies that can assist healthcare professionals like doctors, nurses and biomedical engineers which enables one-to-one care by implementing Tele-Medicine and Tele-Health solutions. Machine Learning (ML) and Internet of Things (IoT) enabled medical big data is the future of the healthcare sector and Medical Technology-based industries leading to applications in other sectors such as fitness tracking for commercial purposes, Sportsperson health monitoring to track their day-to-day activities and wearable devices for critical and emergency care.

Recent …

Dcai: The 4th International Workshop On Data-Centric Ai, Yanjie Fu, Kunpeng Liu, Dongjie Wang

Computer Science Faculty Publications and Presentations

Machine learning traditionally emphasizes developing models for given datasets, but real-world data is often messy, making model improvement insufficient for enhancing performance. Data-Centric AI (DCAI) is an emerging field that systematically improves datasets, leading to significant practical ML advancements. While experienced data scientists have manually refined datasets through trial-and-error and intuition, DCAI approaches data enhancement as a systematic engineering discipline. DCAI represents a shift from focusing on models to the underlying data used for training and evaluation. Despite the dominance of common model architectures and predictable scaling rules, building and using datasets remain labor-intensive and costly, lacking infrastructure and best …

Impact Of Low-Altitude Technology On Low-Altitude Industry Development From Perspective Of Low-Altitude Economy, Yong Wang, Yusen Yang, Jimin Zeng, Zhenglong He, Zongxi Cen

Bulletin of Chinese Academy of Sciences (Chinese Version)

Low-altitude economy, as a typical representative of new quality productive forces and a strategic emerging industry, has become an important engine for promoting high-quality economic development and achieving technological self-reliance and self-improvement in China. This study systematically reviews the development trajectory of low-altitude economy, deeply elucidates the connotations and characteristics of low-altitude technology and its impact mechanisms on low-altitude industrial development, providing theoretical support for constructing a modernized low-altitude economic system. It finds that the concept of low-altitude economy has undergone a paradigm shift from industry terminology to economic formation, gradually completing the institutionalization process from strategic planning to legal …

Innovative Integration Of Modern Facade Design With Traditional Bubungan Tinggi Facade: Towards A Sustainable Home, Nursyarif Agusniansyah, Gusti Novi Sarbini

ASEAN Journal on Science and Technology for Development

This study investigates the transformation of Bubungan Tinggi, a traditional Banjar house with a high roof, into a modern home through the integration of modern facade design with traditional Bubungan Tinggi facade elements. Bubungan Tinggi is a monumental artifact in South Kalimantan representing the collective memory of the Banjar community with its distinctive typology and anatomy. With its unique typology and anatomy, this particular building has evolved into an iconic structure that symbolizes the collective memory of the Banjarese people.

This study uses a qualitative approach with design experiments to explore the integration of facade design, new form, and contemporary …

Overlooked Ionic Contribution Of A Chiral Dopant In Cholesteric Liquid Crystals, Hassanein Shaban, Po-Chang Wu, Yi-Fei Jia, Wei Lee

Basic Science Engineering

This study focuses on the ionic contribution by a chiral dopant added into a nematic host for preparing cholesteric liquid crystals (CLCs). Chiral structures were designated by individually incorporating two enantiomers, R5011 and S5011, into the nematic E44 to construct right- and left-handed CLCs, respectively. Characterized by the space-charge polarization, the dielectric spectra of the CLCs were investigated in the low-frequency regime, where f ≤ 1 kHz. The role of the individual chiral dopant, R5011 or S5011, at concentrations of 0–4.0 wt.% in altering the ionic properties of the CLC material was analyzed by deducing the electrical conductivity, ion density, …

Beyond The Checklist: Pilot Education, Aviation Resources, And Health Management Skills, Nancy Smith

Pacific Journal of Health

The research study investigates if pilots find aviation health-related materials provided from training or aviation associations to support their own health needs. A mixed methods convergent parallel design was conducted by sampling 27 pilots within general aviation to assess their utilization of aviation health-related materials, health management skills including self-efficacy and prioritization, as well as their views of implementing particular health topics into aviation training. Results of the study indicate that it is unclear if pilots find aviation health materials useful in managing their health, pilots have a relatively high level of self-efficacy and ability to prioritize one’s health and …

Evaluation Of Virtual Distance Learning And Teaching In The Architectural Design Studio Experience Of Professors And Students Of The College Of Architecture And Planning - Qassim University - Kingdom Of Saudi Arabia., Abdulaziz Ibrahim Alhrabi

Journal of Engineering Research

The paper deals with the evaluation of distance learning of the architectural design studio during the Corona pandemic, and the extent to which distance learning and teaching were achieved between the professor and the student. The paper aims to share and evaluate the experience of distance learning and teaching of the architectural design studio, in the College of Architecture and Planning at Qassim University. The research problem is that the Corona virus crisis generates many ideas for educational programs and media, but there is a deficiency in knowledge of many programs that achieve the continuity of the educational process remotely, …

Designing Adaptive Facades Using Biomimicry For Improving Daylighting In Office Building: A Case Study Of Cairo, Egypt, Hosam Abd El-Aziz Amr, Nada Essam

Journal of Engineering Research

The paper explores the use of biomimicry to enhance façade design and improve daylighting performance in office buildings in Cairo, Egypt. By emulating natural processes, adaptive facades were developed to increase energy efficiency and occupant comfort. Initial studies examined biomimicry principles and international case studies of adaptive facades. Simulations of a façade inspired by the Gazania flower's nyctinasty movement showed significant improvements: the area achieving optimal illuminance (300-3000 lux) increased from 24.2% to 37.4%, and Spatial Daylight Autonomy (SDA) has decreased from 82% to 68%. These findings demonstrate biomimicry's effectiveness in addressing daylighting challenges in hot climates. The research underscores …

A Parallel Methodology For Early Fake News Detection Based On Hybrid Features On Social Media, Asmaa Mohemed Elsaieed Dr

Journal of Engineering Research

The increased use of social media platforms has made it easier to publish and distribute news items, but it has also opened up new opportunities for distributing fake news. Fake news is information that has been written with the goal of misleading or deceiving readers. As a result, there is a need for efficient false news identification tools where the information can be gathered from the text of posts or from publicly available social data (such as user information or feedback on articles or the social network). The detection of fake news in its early stages is a major challenge. …

Early Autism Detection Using Machine Learning Techniques: A Review, Shaimaa Fouad Sharabash, Hany Ali Elghaish

Journal of Engineering Research

Abstract- This article provides a comprehensive literature review on technology-based interventions for Autism Spectrum Disorder (ASD). It emphasizes the challenges in early detection and treatment of ASD, highlighting the spectrum nature of the disorder. The review discusses traditional diagnostic strategies such as behavioural observations, developmental screening and medical testing and goes on to explore advanced machine learning and deep learning models, including SVM, k-nearest neighbours, decision tree and LSTM, for predicting ASD characteristics in toddlers and children. Additionally, recent techniques employing more than ten strategies for ASD detection are summarized and various datasets used in early detection are described. The …

Editorial For The Special Issue On Nanomaterials For Micro/Nanodevices, Amir Hussain Idrisi

Michigan Tech Publications

The Special Issue of Micromachines, titled "Nanomaterials for Micro/Nanodevices", comprehensively examines the intersection of nanotechnology and micro/nanodevices [...].

Advances In Electrospun Poly(Ε-Caprolactone)-Based Nanofibrous Scaffolds For Tissue Engineering, Karla N. Robles, Fatima Tuz Zahra, Richard Mu, Todd Giorgio

Agricultural and Environmental Sciences Faculty Research

Tissue engineering has great potential for the restoration of damaged tissue due to injury or disease. During tissue development, scaffolds provide structural support for cell growth. To grow healthy tissue, the principal components of such scaffolds must be biocompatible and nontoxic. Poly(ε-caprolactone) (PCL) is a biopolymer that has been used as a key component of composite scaffolds for tissue engineering applications due to its mechanical strength and biodegradability. However, PCL alone can have low cell adherence and wettability. Blends of biomaterials can be incorporated to achieve synergistic scaffold properties for tissue engineering. Electrospun PCL-based scaffolds consist of single or blended-composition …

A Simple And Fast Optical Clearing Method For Whole-Mount Fluorescence In Situ Hybridization (Fish) Imaging, Junwoo Suh, Yehe Liu, Jordan Smith, Michiko Watanabe, Andrew M. Rollins, Michael W. Jenkins

Faculty Scholarship

We report a single-step optical clearing method that is compatible with RNA fluorescence in situ hybridization (FISH) imaging. We previously demonstrated microscopy imaging with immunohistochemistry and genetic reporters using a technique called lipid-preserving refractive index matching for prolonged imaging depth (LIMPID). Our protocol reliably produces high-resolution three-dimensional (3D) images with minimal aberrations using high magnification objectives, captures large field-of-view images of whole-mount tissues, and supports co-labeling with antibody and FISH probes. We also custom-designed FISH probes for quail embryos, demonstrating the ease of fabricating probes for use with less common animal models. Furthermore, we show high-quality 3D images using a …

Delta Airlines Company Analysis, Brendan Aug

Aviation Student Publications

No abstract provided.

10.07.2024 Orsp Connect, Liz Williamson

ORED Newsletter

Lunch and Learn

Update Employee Directory

NIH Updates RPPR Instruction Guide

Guía Para Planes Escolares De Gestión Del Riesgo De Desastres, Diego Alejandro Mesa Baquero, Dalia Xiomara Suárez Pulido, Luis Miguel Castañeda Galindo, María Paula Gómez Leal, Diana Julieth Garzón Sánchez, Natalia Gómez Díaz

Ciencias Agropecuarias

A través de alianzas y encuentros interinstitucionales con todas las entidades territoriales relacionadas en educación ambiental y vinculando a todos los actores de la comunidad educativa tanto docentes directivos, docentes y estudiantes como organizaciones comunitarias y líderes locales para enriquecer la implementación del Proyecto Ambiental Escolar (PRAE) y los Planes Escolares de Gestión de Riesgo de Desastres (PEGR) de los respectivos establecimientos educativos. Esta guía metodológica establecerá los lineamientos para la formulación de los PEGR que contribuirán a la gestión de sus riesgos en cada una de las instituciones educativas y de sus sedes mediante la implementación de los procesos …

Propagation Of Stress Shock Waves In Elastoplastic Continuous Media With Spherical Symmetry, Abdimital Nabiyevich Nabiyev, Abdumalik Abdumurodovich Nabiyev

Technical science and innovation

The article examines the motion caused by the explosion of a spherical charge in elastoplastic continuous media. When a charge explodes, it is assumed that the charge instantly turns into a high-pressure gas without changing its volume, and this gas spreads into the environment, forming a shock wave with spherical symmetry. Taking into account the presence of tangential stresses in inclined areas, equations of one-dimensional dynamic motion of soil are derived, according to which the patterns of propagation of shock waves in soil massifs during an explosion with spherical symmetry are studied. To find the limiting state of the soil, …

Atmospheric Waves Experiment (Awe) Advanced Mesopheric Temperature Mapper (Amtm) Optomechanical Design, Fabrication, And Environmental Test, Tyrel C. Rupp, James Champagne, Greg Hopkins, Roy Esplin, Burt Lamborn, Erik Syrstad, Jordan Jacobson

Space Dynamics Laboratory Publications

The AWE AMTM is a widefield of view (WFOV) infrared imaging radiometer designed for use in measuring the P₁(2) and P₁(4) emission lines of the earth’s OH layer to determine temperature and produce images of gravity waves. The sensor was designed, built, and characterized by Utah State University (USU) Space Dynamics Laboratory (SDL) and has been externally mounted to the International Space Station (ISS) looking nadir to collect images for analysis for a minimum of two years. The Opto-Mechanical Assembly (OMA) consists of four identical imaging telescopes, each comprised of a fisheye lens, a field lens, …

Nanoparticles In Drilling Fluids: A Review Of Types, Mechanisms, Applications, And Future Prospects, Vasanth Gokapai, Prasad Pothana, Kegang Ling

Petroleum Engineering Student Publications

Nanofluids have gained significant attention as a promising solution to several challenges in drilling operations. Nanoparticles, due to their exclusive properties such as high specific surface area, strong adsorption potential, and excellent thermal conductivity, offer significant potential to improve the efficiency and performance of drilling processes. Regardless of the advancements in drilling fluids and techniques that have improved borehole stability, hole cleaning, and extreme operational condition (HTHP) management, limitations still persist. This review discusses a detailed summary of existing research on the application of nanofluids in drilling, exploring their types, properties, and specific uses in areas such as fluid loss …

The Chatgpt Dilemma: Opportunities Vs. Risks In Engineering Education, Ramiz Assaf, Amjad El-Qanni, Ihab H. Alsurakji, Mahmoud Assad

An-Najah University Journal for Research - B (Humanities)

Objective: This research aims at exploring ChatGPT's features and benefits in engineering education, while presenting suggested best practices, potential challenges, and ethical considerations for its use in this field. Methodology: Descriptive analysis of ChatGPT applications in engineering education, focusing on benefits, challenges, and limitations. Key Findings: ChatGPT has diverse applications across various domains, with unprecedented attention in media, industry, and academia. ChatGPT can help enhance students' problem-solving and soft skills (21st century skills). There is a need to change the teaching and assignment approach in engineering to better harness ChatGPT's capabilities. Conclusions: Educators in the engineering field should emphasize the …

Predictive Residual Neural Networks For Optical Trapping Of Small Particles, Nasim Mohammadi Estrakhri, Ponthea Zahraii, Saman Kashanchi, Nooshin M. Estakhri

Engineering Faculty Articles and Research

Optical tweezers provide a non-contact method to trap, move, and manipulate micro- and nano-sized objects. Using properly designed dielectric and plasmonic nanostructure configurations, optical tweezers have been tailored to create stable and precise trapping for nanoscale objects. Recent advances in numerical optimization techniques allow further enhancement in nanoscale optical traps through inverse optimization of such configurations. One of the main challenges in such optimization approaches is the time-consuming nature of full-wave simulation of nanostructures and postprocessing steps to extract optical forces. To address this challenge, we introduce a surrogate solver based on residual neural networks that can accurately predict the …

Pig Butchering In Cybersecurity: A Modern Social Engineering Threat, Sharon L. Burton, Pamela D. Moore

Publications

Pig butchering is an escalating cybersecurity threat that exploits social engineering to build trust and execute financial fraud. The relevance of this research problem lies in the growing incidence and sophistication of these scams, which have severe financial and psychological impacts on victims. The main purpose of this research is to uncover the methods used in pig butchering scams and their impact on individuals and businesses. The research focuses on digital platforms such as social media, dating apps, and professional networking sites, chosen for their wide user bases and the ease of establishing personal connections. The study period encompasses recent …

Instructional Systems Design: The Diffusion And Adoption Of Technology: (Volume 2), Cassandra Celaya (Author), Pamela J. Downing (Author), Jessica Shifflett (Author), Debbie Gdula (Author), Tracie Barr (Author), Miguel Ramlatchan (Author & Editor)

University Administration Bookshelf

Instructional designers, instructional systems designers, and other educational technologists are, by their nature, innovators. These professionals apply and extend the applied science of learning, systems, communication, and instructional design theory to help students learn. Technology in some capacity is used to make the connections between subject matter experts, teachers, instructors, and their learners. It is common for instructional designers to seek new tools, techniques, and innovations for the improvement of learning, access, quality, and student satisfaction. However, the adoption and diffusion of new educational technology and innovation is a complex process that depends on many variables. Understanding these processes and …

Santa Clara Magazine, Volume 65 Number 2, Fall 2024 [Print Issue 62:2], Santa Clara University

Santa Clara Magazine

12 - INCREASING ACCESS Discerning one’s dream requires a whole set of experiences based on community, opportunity, and, yes, cash. Leslie Griffy

16 - UNPACKING UTOPIA It seems like billionaire-backed utopias are popping up all over the map. What does it take to build a perfect city? Lauren Loftus

22 - A WEALTH OF WELL-BEING In his new book, Professor Meir Statman explores a holistic approach to financial and life well-being. Leslie Griffy

26 - A WOMAN'S PLACE Despite being denied access to the priesthood, Catholic women find new ways to lead. Leslie Griffy

Advances In Biomedical Research And Treatments: What Is Acceptable?, Michael L. Clancy, Khalid M. Iskandarani, Mitchell C. Mccrea

Journal of Health Ethics

This study investigated the technology acceptance (TA) of twenty-first century biomedical treatments by adults in the United States. A new TA instrument was created, using five distinct levels: (1) Healing and Prevention, (2) Replacement Organs, (3) Enhancements-Medical, (4) Enhancements-Discretionary, and (5) Transhumans. An on-line survey produced 353 usable responses, which showed distinct patterns for each of five biomedical treatment levels. There was clear support for Levels 1–3, but very strong opposition to Levels 4–5. The TA finding draws the line between which human interventions are acceptable versus others that should be prohibited through public policies and medical guidelines.

Devices And Dining: A Cross-Cultural Analysis Of Mobile Device Use In Italian And American Restaurants, O'Malley Jenkins

Senior Theses

The field of technology ethics has seen increasing growth and interest over the years. Many have begun to consider the impacts of technology’s use and whether it is being employed in a healthy manner by users. However, there has been limited investigation into whether the ways in which technology use varies across cultures. This study begins to address this gap by researching Italian and American device usage in fast food settings. Non-participant naturalistic observations were used to record data for 89 Italian and 88 American customers of fast food restaurants. Analysis of the collected data indicates that Americans use their …