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Federal And State Management Of Reservoir Recreation, Md Mahadi Hasan
Federal And State Management Of Reservoir Recreation, Md Mahadi Hasan
Agribusiness and Applied Economics
Reservoirs serve multiple purposes, including recreation, flood control, and hydroelectricity production. In the United States, these reservoirs are typically managed by federal or state agencies. This thesis assesses the effectiveness of federal versus state management in enhancing the recreational use of these reservoirs. The study utilized panel data from 85 reservoirs across the United States, spanning from 2014 to 2021 and including 680 observations. The analysis focused on comparing visitation rates under different management regimes. The central finding of this study is that the type of management agency, whether federal or state, does not significantly affect visitation rates. However, factors …
Heat-Treated Soybean Meal In Beef Cattle Diets, Grady Gullickson
Heat-Treated Soybean Meal In Beef Cattle Diets, Grady Gullickson
Animal Sciences
Two experiments were conducted to evaluate replacing dried distillers grains with solubles (DDGS) with heat-treated soybean (TSBM) at increasing rates in forage-based diets on steer growth performance, nutrient flow, and digestibility. Experiment 1: 70 angus-based steers were utilized in a generalized randomized block design for an 85-d growing study at the NDSU Beef Cattle Research Complex. Experiment 2: five fistulated Jersey steers fitted with ruminal, duodenal, and ileal cannulas were utilized in a 4 × 5 row column design for 56 d to measure nutrient flow and digestibility. Diets were formulated to replace DDGS, included in the diet at 16% …
Expedition Interim: Projects On A Journey Towards Equity, Cody Jorrell Jr. Loud
Expedition Interim: Projects On A Journey Towards Equity, Cody Jorrell Jr. Loud
Architecture Theses
As systemic local inequities continue to malform cities without official accountability, the options for architectural intervention seem limited. Not many artistic avenues exist to combat issues of unilaterally failing infrastructure; and to address an issue so thickly sown across modern cities may require intervention at an infrastructural scale. Additionally, what’s catalyzing displacement in one neighborhood may be different in another. This thesis explores how we could respond to the nuances of cities like Seattle, Chicago, or New York City. And how can a project have both a practical usage and convey a symbolic stance against inequity by simply being? This …
Application Of Image Based Finite Element Analysis For Mechanical Characterization Of Materials Processed By Direct Energy Deposition Technology, David Smith
Mathematics
The main focus of this study is to analyze the elastic properties of two different additively manufactured materials. To this end, a cobalt chromium (CoCr) metal alloy sample and a tungsten carbide-17% cobalt (WC-17Co) cermet specimen were both fabricated by the direct energy deposition (DED) process and were examined in this study. A comparative study between the results obtained from the application of numerical and analytical techniques versus the experimental results could show the accuracy of these techniques for estimation of elastic properties of the samples. A conventionally manufactured CoCr alloy and WC-17Co samples with similar composition was subjected to …
Implementing Industry 4.0: A Study Of Socio-Technical Readiness Among Manufacturers In Minnesota And North Dakota, Katherine Roth
Implementing Industry 4.0: A Study Of Socio-Technical Readiness Among Manufacturers In Minnesota And North Dakota, Katherine Roth
Industrial and Manufacturing Engineering
The implementation of Industry 4.0 has become increasingly prevalent in the manufacturing industry since its inception. With the introduction of these newer technologies, changes in personnel and organizational structures occur. The purposeful joint optimization of social and technical factors of organizations is imperative to the successful adoption of Industry 4.0. Thus, the socio-technical system theory addresses a holistic design of human, technology, and organization subsystems of the manufacturing process and their interdependencies. This dissertation investigates the progress made towards implementing Industry 4.0 by small, medium, and large manufacturers in Minnesota and North Dakota. The outcomes of two surveys conducted among …
Housing And The Construction Labor Shortage: Designing For Jobs In Duluth, Mn, Dawson Alexander Broman
Housing And The Construction Labor Shortage: Designing For Jobs In Duluth, Mn, Dawson Alexander Broman
Architecture Theses
This thesis examines the implication of modular timber framing as a design response to the construction labor shortage in Duluth MN. Drawing on the impact of tourism in Duluth and its impact on the housing market, increasing investment in the city is pushing up real estate prices, and in turn changing what buyers are willing to spend on construction labor. Because of this, labor wages remain uncompetitive because of rising real estate and material costs. This thesis explores the use of modular heavy timber as a local resource with minimal manufacturing expenses, intended to bring more money into the construction …
A Path To Reconnection: Using Architecture To Restore The Relationship Between Humankind And The Natural World, Elizabeth Kucala
A Path To Reconnection: Using Architecture To Restore The Relationship Between Humankind And The Natural World, Elizabeth Kucala
Architecture Theses
Humans and the natural world once shared a profound connection through the reciprocal nature of their relationship. Due to the continuous changes in the technology and customs of society, as well as the apprehension of those who are different from us, humans have disconnected from each other, animals, and nature. This has led to the mistreatment and ignorance of groups such as the elderly and stray animals who have been cast out from society. This project aims to reconnect humankind and the natural world through the improvement of animal shelter design and the amalgamation of building programs including a memory …
The Future Of Our Future: Designing Early Education For All, Anne Rebecca Manstrom
The Future Of Our Future: Designing Early Education For All, Anne Rebecca Manstrom
Architecture Theses
“Disability is a natural part of the human experience and in no way diminishes the right of individuals to participate in or contribute to society” (“About IDEA,” n.d.). Starting from a young age, children strive to be wanted, accepted and included. Elementary schools serve as a launching pad for the rest of everyone's lives. Making sure students, in all capacities, are thought of from the beginning is crucial to successful design. Often, students with learning disabilities are sent to different rooms with different teachers to learn at different rates. What if there was a way to keep all students together …
Xylan Fast Pyrolysis: An Experimental And Modelling Study Of Particle Changes And Volatiles Release, F Cerciello, E Freisewinkel, A Coppola, C Ontyd, D Tarlinski, Martin Schiemann, Osvalda Senneca, Pierro Salatino, C Allouis, Victor Scherer, Thomas H. Fletcher
Xylan Fast Pyrolysis: An Experimental And Modelling Study Of Particle Changes And Volatiles Release, F Cerciello, E Freisewinkel, A Coppola, C Ontyd, D Tarlinski, Martin Schiemann, Osvalda Senneca, Pierro Salatino, C Allouis, Victor Scherer, Thomas H. Fletcher
Faculty Publications
Biomass char particles produced by pyrolysis may have different morphologies, which has important implications on burning mode, conversion rate and boiler efficiency. These features are difficult to address due to the complexity of biomass structure and pyrolysis reaction models. The present work reports preliminary results on the morphological changes and volatile release that solid particles of Xylan experience upon fast heating in a Drop Tube Reactor (DTR) and in a Heated Strip Reactor (HSR) in a range of temperature between 1100 and 1573 K under inert atmosphere with heating rate in the order of 103 K/s. Two different Xylan …
Community Detection In Censored Hypergraph, Zhao Bin
Community Detection In Censored Hypergraph, Zhao Bin
Statistics
Network, or graph, represent relationships between entities in various applications, such as social networks, biological systems, and communication networks. A common feature in network data is the presence of community structures, where groups of nodes exhibit higher connectivity within themselves than with other groups. Identifying these community structures, a task known as community detection, is essential for gaining valuable insights in diverse applications, including uncovering hidden relationships in social networks, detecting functional modules in biological systems, and identifying vulnerabilities in communication networks. However, real-world network data may have missing values, significantly impacting the network’s structural properties. Existing community detection methods …
The Contracts Word List: Integral Vocabulary For Reading And Writing English Contracts, Elizabeth Hanks, Brett James Hashimoto, Jesse Egbert
The Contracts Word List: Integral Vocabulary For Reading And Writing English Contracts, Elizabeth Hanks, Brett James Hashimoto, Jesse Egbert
Faculty Publications
Both Business English as a Lingua Franca (BELF) and Legal English as a Lingua Franca (LELF) users engage with legal contracts regularly. However, contractual language is notoriously complex, due in part to the vocabulary it contains. To help mitigate the challenges related to learning the vocabulary of contracts, this paper introduces a word list of American English contracts called the ContractsWord List (CWL).We describe the compilation of the Corpus of English Business Contracts (CEBC) that represents six major contract types in 48 million words. The extraction of prevalent and specialized words from the CEBC is described, following validation procedures in …
Identification, Investigation, And Spatial Analysis Of Various Contributing Factors To Crash And Injury Severity In Different Crash Types, Ihsan Khan
Transportation Logistics and Finance
This dissertation had three main objectives related to improving road safety by investigating factors that contribute to injury severity in different types of single-vehicle crashes. The first objective was to develop a generalized ordered logit model to examine factors affecting injury severity of occupants in single-vehicle rollover crashes using 5 years of U.S. crash data from 2012-2016. Results showed likelihood of serious/fatal injuries increased in rollovers with occupant ejection, speeding, higher speed limits, roadside/median rollovers, undulating terrain, blacktop surfaces, rural roads, evenings, weekdays, older drivers, lack of occupant protection, previous driver crashes, distracted/aggressive driving, and passenger cars. Airbag deployment reduced …
Demographic Change, Migration, And The African American Vowel System In Georgia, Jon Forrest, Margaret E. L. Renwick, Joseph A. Stanley, Lelia Glass
Demographic Change, Migration, And The African American Vowel System In Georgia, Jon Forrest, Margaret E. L. Renwick, Joseph A. Stanley, Lelia Glass
Faculty Publications
The theme of this volume is generational trends in language change, with an emphasis on the Baby Boomer to Gen X transition as an important period of time. Many studies have found sharp changes in vowel systems in communities after the Baby Boomer Generation on the East Coast (Thiel and Dinkin 2020) and in the Midwest (Nesbitt 2021). Though we know a great deal about the geographic consistency of the Baby Boomer to Gen X transition, in all of these cases, the focus has been on White speakers and regional varieties. Besides the general importance of including a breadth of …
Artificial Intelligence’S Capabilities, Limitations, And Impact On Accounting Education: Investigating Chatgpt’S Performance On Educational Accounting Case, Xu (Joyce) Cheng, Ryan Dunn, Travis Holt, Kerry Inger, J. Gregory Jenkins, Jefferson Jones, James Long, Tina Loraas, Mollie Mathis, Jonathan Stanley, David A. Wood
Artificial Intelligence’S Capabilities, Limitations, And Impact On Accounting Education: Investigating Chatgpt’S Performance On Educational Accounting Case, Xu (Joyce) Cheng, Ryan Dunn, Travis Holt, Kerry Inger, J. Gregory Jenkins, Jefferson Jones, James Long, Tina Loraas, Mollie Mathis, Jonathan Stanley, David A. Wood
Faculty Publications
This study evaluates the capabilities of ChatGPT models 3.5 and 4 to provide solutions to eight educational accounting cases. We find that ChatGPT’s ability to provide accurate solutions varies depending on the type of case requirement and topical area of accounting, with better performance on tasks requiring elements that require explanation, application of rules, and ethical evaluation. However, ChatGPT performs poorly on tasks that require financial statement creation, journal entries, or software use. Our study also finds that detection tools provided by ChatGPT's developer are ineffective in identifying text created by Artificial Intelligence Text Generators (AITG). We suggest ways in …
Automating Evaluation Of Skill Assessment To Promote Skill Acquisition In The Area Of Data Analytics Automation, Joshua G. Coyne, Scott L. Summers, Brigham Villanueva, David A. Wood
Automating Evaluation Of Skill Assessment To Promote Skill Acquisition In The Area Of Data Analytics Automation, Joshua G. Coyne, Scott L. Summers, Brigham Villanueva, David A. Wood
Faculty Publications
As accounting increasingly embraces automation and data analytics, proficient skill assessment remains a challenge. We introduce an automated tool that streamlines the evaluation of Alteryx workflows. Utilizing the design science methodology, our tool effectively executes and compares Alteryx workflows against a solution, providing score and feedback. Validation demonstrates remarkable gains; our tool is error-free and 9 to 146 times faster than manual evaluation. The tool’s efficiency, accuracy, and user-friendliness make it much more feasible to assign unstructured Alteryx assignments for student development. Enhanced technology skills will promote hiring and productivity gains associated with automation in accounting.
Leveraging Chatgpt For Enhancing The Internal Audit Process – A Real-World Example From A Large Multinational Company, Scott Emett, Marc Eulerich, Egemen Lipinski, Nicolo Prien, David A. Wood
Leveraging Chatgpt For Enhancing The Internal Audit Process – A Real-World Example From A Large Multinational Company, Scott Emett, Marc Eulerich, Egemen Lipinski, Nicolo Prien, David A. Wood
Faculty Publications
We discuss how the internal audit function (IAF) of a large multinational energy company, Uniper, is starting to use ChatGPT to improve automation of internal auditing. We investigate the benefits and challenges of integrating ChatGPT into internal audit processes and assess its impact on the efficiency and effectiveness of the IAF. Uniper has implemented ChatGPT into parts of audit preparation, fieldwork, and audit reporting. On their initial tests, they estimate efficiency gains ranging from 50 to 80 percent for various processes. We report key risks and challenges with using ChatGPT in internal auditing as well as the initial key practices …
Is It All Hype? Chatgpt’S Performance And Disruptive Potential In The Accounting And Auditing Industries, Marc Eulerich, Aida Sanatizadeh, Hamid Vakilzadeh, David A. Wood
Is It All Hype? Chatgpt’S Performance And Disruptive Potential In The Accounting And Auditing Industries, Marc Eulerich, Aida Sanatizadeh, Hamid Vakilzadeh, David A. Wood
Faculty Publications
ChatGPT frequently appears in the media, with many predicting significant disruptions, especially in the fields of accounting and auditing. Yet research has demonstrated relatively poor performance of ChatGPT on student assessment questions. We extend this research to examine whether more recent ChatGPT models and capabilities can pass major accounting certification exams including the Certified Public Accountant (CPA), Certified Management Accountant (CMA), Certified Internal Auditor (CIA), and Enrolled Agent (EA) certification exams. We find that the ChatGPT 3.5 model cannot pass any exam (average score across all assessments of 53.1%). However, with additional enhancements, ChatGPT can pass all sections of each …
The Dark Side Of Robotic Process Automation, Marc Eulerich, Nathan Waddoups, Martin Wagener, David A. Wood
The Dark Side Of Robotic Process Automation, Marc Eulerich, Nathan Waddoups, Martin Wagener, David A. Wood
Faculty Publications
Prior research on Robotic Process Automation (RPA) has largely focused on how it benefits firms and employees. In contrast, we interview 26 high-profile RPA stakeholders at a Fortune 500 firm to ascertain challenges, drawbacks, or pitfalls of using RPA. We identify five key problems related to RPA usage: (1) RPA is often used as a quick-fix band-aid instead of fixing core system issues, (2) RPA can cause serious control and security issues, (3) the true cost of RPA is often misunderstood and understated, (4) RPA governance is complicated and challenging, and (5) RPA usage can lead to a loss of …
Gauging Scholarly Engagement: An Investigation Into Topic Popularity Within The Asee Cit Division, Barry M. Lunt, Mudasser Fraz Wyne, David A. Wood
Gauging Scholarly Engagement: An Investigation Into Topic Popularity Within The Asee Cit Division, Barry M. Lunt, Mudasser Fraz Wyne, David A. Wood
Faculty Publications
Since 2011, the Computing and Information Technology (CIT) division of the ASEE has had 427 papers presented and published in the proceedings of the ASEE Annual Conference and Exposition. This paper looks at these 427 papers as a whole, providing descriptive statistics, giving the top institutions and authors that have contributed to these papers, and providing information regarding the impact of the top ten papers, as measured by their citations and downloads. We have also used the ChatGPT version 4.0 to provide categories for the 427 papers, providing insight into the most popular topics for papers in the CIT division.
Improving The Production And Reviewing Of Design Science Research In Accounting, Noah Myers, Mason Snow, Nathan Waddoups, David A. Wood
Improving The Production And Reviewing Of Design Science Research In Accounting, Noah Myers, Mason Snow, Nathan Waddoups, David A. Wood
Faculty Publications
Design Science Research (DSR) is a rigorous research methodology widely used in other fields like computer science and engineering, but its application in accounting is still relatively limited. This paper reviews the implementation of DSR published in accounting journals and provides recommendations to improve the authoring and reviewing processes. We review 51 DSR articles published in accounting journals between 2011 and 2023. The analysis identified areas where papers excelled and fell short, leading to recommendations in the following key aspects: adherence to a research framework, validation of research questions, defining objectives of artifacts, developing a more diverse set of artifacts, …
Short And Synthetically Distort: Investor Reactions To Deepfake Financial News, Scott Emett, Marc Eulerich, Jeffrey Pickerd, David A. Wood
Short And Synthetically Distort: Investor Reactions To Deepfake Financial News, Scott Emett, Marc Eulerich, Jeffrey Pickerd, David A. Wood
Faculty Publications
Recent advances in artificial intelligence have led to new forms of misinformation, including highly realistic “deepfake” synthetic media. We conduct three experiments to investigate how and why retail investors react to deepfake financial news. Results from the first two experiments provide evidence that investors use a “realism heuristic,” responding more intensely to audio and video deepfakes as their perceptual realism increases. In the third experiment, we introduce an intervention to prompt analytical thinking, varying whether participants make analytical judgments about credibility or intuitive investment judgments. When making intuitive investment judgments, investors are strongly influenced by both more and less realistic …
The Intellectual Structure Of Audit Committee Research: A Bibliometric Analysis (1969 – 2020), Joel Behrend, Marc Eulerich, David A. Wood
The Intellectual Structure Of Audit Committee Research: A Bibliometric Analysis (1969 – 2020), Joel Behrend, Marc Eulerich, David A. Wood
Faculty Publications
The audit committee is a widely recognized mechanism of effective corporate governance. We advance prior literature reviews by using bibliometric analysis techniques that comprehensively process large bodies of bibliometric information. We base inferences on citation patterns of 1,173 articles to identify concepts that “shine through” within the scientific understanding of audit committees. Using content analysis, we then analyze these concepts and explore existing interrelationships. We document a declining influence of audit committee research, as well as a widening gap between the quantitative and qualitative research camps. While the former is mostly derivative in nature, the latter produces innovative insights on …
Aerosol Jet Printing Of Surface Acoustic Wave Microfluidic Devices, Joseph Rich, Brian Cole, Teng Li, Brandon Lu, Hanyu Fu, Brittany N. Smith, Jianping Xia, Shujie Yang, Ruoyu Zhong, James L. Doherty, Kanji Kaneko, Hiroaki Suzuki, Zhenhua Tian, Aaron D. Franklin, Tony Jun Huang
Aerosol Jet Printing Of Surface Acoustic Wave Microfluidic Devices, Joseph Rich, Brian Cole, Teng Li, Brandon Lu, Hanyu Fu, Brittany N. Smith, Jianping Xia, Shujie Yang, Ruoyu Zhong, James L. Doherty, Kanji Kaneko, Hiroaki Suzuki, Zhenhua Tian, Aaron D. Franklin, Tony Jun Huang
Faculty Publications
The addition of surface acoustic wave (SAW) technologies to microfluidics has greatly advanced lab-on-a-chip applications due to their unique and powerful attributes, including high-precision manipulation, versatility, integrability, biocompatibility, contactless nature, and rapid actuation. However, the development of SAW microfluidic devices is limited by complex and time-consuming micro/nanofabrication techniques and access to cleanroom facilities for multistep photolithography and vacuum-based processing. To simplify the fabrication of SAW microfluidic devices with customizable dimensions and functions, we utilized the additive manufacturing technique of aerosol jet printing. We successfully fabricated customized SAW microfluidic devices of varying materials, including silver nanowires, graphene, and poly(3,4-ethylenedioxythiophene) polystyrene sulfonate …
Review Of The Cavity Effect: Modeling And Impact Of Cavity Shape On Apparent Radiative Surface Properties, Ehsan Mofidipour, Matthew R. Jones, Brian D. Iverson
Review Of The Cavity Effect: Modeling And Impact Of Cavity Shape On Apparent Radiative Surface Properties, Ehsan Mofidipour, Matthew R. Jones, Brian D. Iverson
Faculty Publications
Radiative surface properties play a critical role in the analysis, design, and optimization of thermal systems. Geometry has a strong influence on the emission and absorption characteristics of a surface. Modification of radiative surface properties may be achieved by using engineered surfaces or cavities by capitalizing on the cavity effect. A model for the apparent emissivity of an arbitrarily shaped cavity with spectrally and directionally dependent radiative surface properties is presented in this work. This model is verified through comparison with published models of the apparent radiative properties of cylindrical cavities. The merit of this model is demonstrated by obtaining …
Ifn-𝜸 And Il-10 Immunosensor With Vertically Aligned Carbon Nanotube Interdigitated Electrodes Toward Pen-Side Cattle Paratuberculosis Monitoring, Shaowei Ding, Benjamin J. Brownlee, Kshama Parate, Cicero C. Pola, Bolin Chen, Jesse M. Hostetter, Douglas Jones, John Jackman, Brian D. Iverson, Jonathan C. Claussen
Ifn-𝜸 And Il-10 Immunosensor With Vertically Aligned Carbon Nanotube Interdigitated Electrodes Toward Pen-Side Cattle Paratuberculosis Monitoring, Shaowei Ding, Benjamin J. Brownlee, Kshama Parate, Cicero C. Pola, Bolin Chen, Jesse M. Hostetter, Douglas Jones, John Jackman, Brian D. Iverson, Jonathan C. Claussen
Faculty Publications
Highly sensitive vertically aligned carbon nanotube arrays (VANTAs) interdigitated electrode (IDE) arrays are developed for electrochemical biosensing of two cytokines (i.e., interleukin-10 (IL-10) and interferon-gamma (IFN-𝜸)) that are useful for early detection Johne’s disease (Bovine Paratuberculosis) in cattle. The high aspect ratio VANTA-IDEs (50–60 μm in height) are grown through a chemical vapor deposition process from an iron (Fe) catalyst that is lithographically patterned on a silicon wafer with equal finger width and inter-finger spacing of 25 μm. After functionalization with distinct antibodies the VANTA-IDEs are capable of selective detection of both IL-10 and IFN-𝜸 within an actual biological matrix …
Drop Retention And Departure In Adiabatic Shear Flow On Structured Superhydrophobic Surfaces, Blake M. Lyons, Daniel Maynes, Julie Crockett, Brian D. Iverson
Drop Retention And Departure In Adiabatic Shear Flow On Structured Superhydrophobic Surfaces, Blake M. Lyons, Daniel Maynes, Julie Crockett, Brian D. Iverson
Faculty Publications
Drops are retained or held on surfaces due to a retention force exerted on the drop by the surface. This retention force is a function of the surface tension of the liquid, drop geometry, and the contact angle between the drop and the surface. When external or body forces exceed the retention force, the drop begins to move. This work explores the conditions for which drop departure occurs on structured superhydrophobic surfaces in the presence of an applied shear flow. Drop departure is explored for five microstructured superhydrophobic surfaces, one nanostructured carbon nanotube surface and one smooth hydrophobic surface. Surface …
Strategic Alignment, Performance, And The Moderating Effect Of Regulatory Fit, Hayden T. Gunnell, Steven D. Smith, Travis W. Steadman
Strategic Alignment, Performance, And The Moderating Effect Of Regulatory Fit, Hayden T. Gunnell, Steven D. Smith, Travis W. Steadman
Faculty Publications
We examine how the alignment of performance measurement and strategy affects performance on a multidimensional task. Our experiment varies both the strategy (speed versus accuracy) of the hypothetical firm for which participants work and the individual performance measure that is reported to them, creating two conditions of clear alignment and two of clear misalignment. We find that while workers are responsive to the performance measure regardless of its alignment, they are also sensitive to the strategy such that costly alignment effects are observed. We also predict and find that workers respond asymmetrically to misalignment in accuracy performance but not in …
Transformative Learning Outcomes: Shifting The Learning Outcome Conversation From Assessment To Design, Mat D. Duerden, Jamin C. Rowan
Transformative Learning Outcomes: Shifting The Learning Outcome Conversation From Assessment To Design, Mat D. Duerden, Jamin C. Rowan
Faculty Publications
What if the focus of learning outcomes shifted from telling students what they will know at the end of a course to who they will become? Learning outcomes have drifted away from informing curriculum design to providing parameters for external assessment. This article reviews this shift along with a proposal to reimagine learning outcomes as transformative learning outcomes. It discusses previous work on transformative learning outcomes and proposes a new conceptual definition: learning outcomes that articulate habits of mind or ways of being that students will develop because of a learning experience or sequence of learning experiences. Such learning outcomes …
Methodology For Designing And Improving Novel Kirigami Patterns Using The Hamiltonian Circuit Framework, Larry L. Howell, Nathan Coleman, Mckaelin Edralin, Specer P. Magleby, Denise Halverson, Zhong You
Methodology For Designing And Improving Novel Kirigami Patterns Using The Hamiltonian Circuit Framework, Larry L. Howell, Nathan Coleman, Mckaelin Edralin, Specer P. Magleby, Denise Halverson, Zhong You
Faculty Publications
The ability to compactly fold arrays to be deployed in space has seen an increasing demand in the aerospace industry. In this work, we build on existing methods to create kirigami patterns which can stow compactly and deploy out to a predictable shape using Hamiltonian circuits. We detail how designers can use this method to create novel kirigami patterns for a desired deployed shape and area. We also discuss techniques for modifying and improving the behavior and performance of kirigami patterns created using this method, and then show example applications including as a deployable radio frequency antenna of this method …
The Surrogate Fold Catalog: A Design Tool For Origami-Inspired Mechanical Systems, Larry L. Howell, Ivy Running, Phebe Ramsdell, Carolina Wright, Spencer P. Magleby
The Surrogate Fold Catalog: A Design Tool For Origami-Inspired Mechanical Systems, Larry L. Howell, Ivy Running, Phebe Ramsdell, Carolina Wright, Spencer P. Magleby
Faculty Publications
Origami has inspired work in many fields of science and engineering. However, it can be difficult to transfer the motion of an origami design from folded paper to thicker, stiffer materials. When using engineering materials, creases from an origami fold pattern are usually replaced with “surrogate folds”. While many different surrogate folds have been developed, it is challenging for a designer to quickly survey and compare potential surrogate folds. Surrogate folds can improve many origami-inspired designs and applications by changing how the designs are manufactured and how they behave. This work categorizes compliant mechanisms that may be effective as surrogate …