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Articles 721 - 750 of 10019
Full-Text Articles in Entire DC Network
Smallholder Farmer Resilience As A Pillar Of Climate-Smart Agriculture: A Review, Michael B. Madin Mr, Daniel Kweku B. Inkoom Professor, Charles A. Bamfo Jr
Smallholder Farmer Resilience As A Pillar Of Climate-Smart Agriculture: A Review, Michael B. Madin Mr, Daniel Kweku B. Inkoom Professor, Charles A. Bamfo Jr
Journal of Environmental Sustainability
This systematic review synthesizes and assesses scientific literature publications (n=42), to identify and depict the focus of climate change adaptations and resilience research on smallholder farmers in the savannah ecological zone (SAZ). We found substantive studies providing evidence of climate impacts, with adverse consequences on both human and environmental systems. Adaptive actions are being employed to manage the changing conditions as response to climate impacts. Notably, most research efforts are currently restricted to impacts on adaptation, food security, and vulnerability, with a very rare focus on climate resilience and the effects of adaptive actions. Hence, the possible maladaptation outcomes, which …
Biodov: A Tool Used To Encourage Discovery In Bioinformatics Through Gamification, Gregory D. Johnson Jr.
Biodov: A Tool Used To Encourage Discovery In Bioinformatics Through Gamification, Gregory D. Johnson Jr.
Theses
Expressing big data in a meaningful manner is exceptionally difficult. Scientists often struggle with the visualization of data due to several limitations. Currently, many scientists use two-dimensional figures to display and analyze meaningful data. However, I believe using game design theory and game technologies, we can create more robust visualizations. These visualizations will allow scientists to easily communicate science to the masses and make better discoveries. Therefore, we introduce BioDOV (Biological Data Oriented Visualization). This tool will utilize game design principles to expand upon current visualization methods in the scientific community. Through this proof of concept, we will create the …
The Fast And The Curious: Accelerating Literature Reviews With Ai, Jennifer Freer, Natalia Tingle Dolan, Gabrielle Wiersma
The Fast And The Curious: Accelerating Literature Reviews With Ai, Jennifer Freer, Natalia Tingle Dolan, Gabrielle Wiersma
Presentations and other scholarship
As the world of academic research shifts gears into the digital age, AI-powered tools are beginning to shape the scholarly landscape. Just as high-performance vehicles transformed the world of car racing, AI-powered tools like scite, Elicit, and Research Rabbit have the potential to revolutionize the traditional literature review process. This presentation will accelerate your understanding of AI literature review tools and how these technologies can turbocharge the research process. Navigating between traditional library tools and AI-powered systems can be like choosing the right vehicle for the race. AI tools can enhance the speed, depth, and breadth of literature reviews, allowing …
Addition Of Fibers Derived From Paper Mill Sludge In Paper Coatings: Impact On Microstructure, Surface And Optical Properties, Bilge N. Altay, Burak Aksoy, Anamiqa Huq, Richard Hailstone, Charles P. Klass, Muslum Demir, Scott Williams
Addition Of Fibers Derived From Paper Mill Sludge In Paper Coatings: Impact On Microstructure, Surface And Optical Properties, Bilge N. Altay, Burak Aksoy, Anamiqa Huq, Richard Hailstone, Charles P. Klass, Muslum Demir, Scott Williams
Articles
Traditionally, cellulose nanofiber (CNF) production has primarily relied on virgin cellulose sources. Yet, the shift to using paper mill sludge (PMS) as a source for CNF underscores the significance of reusing and recycling industrial byproducts. PMS contains significant amounts of cellulose that can be extracted as a raw material. The purpose of present study is to provide a sustainable approach to PMS utilization as a paper coating additive in the cellulose nanofibrils (CNFPMS) form via simply scalable wire-wound rod coating method. The effect of CNFPMS additive amounts at two coating layers on microstructure and surface properties of coatings such as …
Application Of Icp Rie Techniques To Produce Cnt Arrays, Mujtaba Yar Khan Siddiqui
Application Of Icp Rie Techniques To Produce Cnt Arrays, Mujtaba Yar Khan Siddiqui
Theses
Introducing biomolecules into cells is an important process in the field of gene therapy and in developing cures for debilitating illnesses such as HIV and cancer. However, the currently used methods for cellular transfection are slow, inefficient and expensive, causing them to be restrictive. A solution to this problem would be the carbon nanotube (CNT) array devices developed by our research group, which have been shown to be highly efficient at transporting biomolecules into cells. In the current manufacturing process, a sacrificial template with vertically aligned nanopores is used to deposit carbon in, the template then is etched away to …
Optimal Entanglement And Spin Squeezing In Collections Of Two-Level Atoms, Emily Finson
Optimal Entanglement And Spin Squeezing In Collections Of Two-Level Atoms, Emily Finson
Theses
Spin squeezing is a bulk, non-classical effect that can occur in spin systems and occurs when fluctuations between two observables are redistributed while still maintaining the minimum uncertainty product. Planar-quantum squeezing is a similar phenomenon where there are decreased spin variances in two orthogonal spin components. In the work that follows, we consider specifically the realization of a spin-j system, a collection of N = 2j two-level atoms, in accordance with the famous Dicke model for such a system. Both spin and planar-quantum squeezing act as entanglement witnesses. This means that where we observe spin squeezing we should also observe …
Bearings Fault Classification Using Machine Learning And Dashboard For Bearing Signals Vibration, Ameirah Mohamed
Bearings Fault Classification Using Machine Learning And Dashboard For Bearing Signals Vibration, Ameirah Mohamed
Theses
Bearings are crucial components for the mechanical system that allows relative motion between two parts. Bearings primarily used to reduce the friction on the component. However, Bearings can fail for several reasons such corrosions, fatigue and electrical damage ..etc .This research aims to develop an accurate prediction model and visualization dashboard to avoid the costly downtimes, high repair cost and enhance the maintenance experience for workers and engineers. The data used in this research is CASE WESTERN RESRVE UNIVERSITY (CWRU) bearing data set. The data set contains signals vibration readings of bearings that can used for bearings fault detection. The …
Fabrication Of Diffraction Grating Prototype Solar Sails For In-Space Propulsion, Qing Xian Wang
Fabrication Of Diffraction Grating Prototype Solar Sails For In-Space Propulsion, Qing Xian Wang
Theses
Solar sails offer advantages over rockets for heliocentric navigation by utilizing sunlight as an unlimited source of radiation pressure for propulsion. This eliminates the need to carry fuel and allows the sail craft to reach destinations that are difficult or impossible for rockets to reach. Solar sails provide a small but continuous acceleration that produces large changes in the sail craft velocity over time. A conventional solar sail makes use of the law of reflection to achieve in-space propulsion. By tilting the reflective sail away from the sunline, an optimal angle of reflection is achieved, generating a transverse force for …
An Introductory Course In Electrical Circuits And Coding For Deaf And Deafblind Middle School Students, Becca Leininger, Christina Yang, Makayla Quinn, Jeffrey Jalkio, Rahaf Bahajry, Mellissa Ingabire, Annmarie Thomas
An Introductory Course In Electrical Circuits And Coding For Deaf And Deafblind Middle School Students, Becca Leininger, Christina Yang, Makayla Quinn, Jeffrey Jalkio, Rahaf Bahajry, Mellissa Ingabire, Annmarie Thomas
Journal of Science Education for Students with Disabilities
in is the first Deaf charter school in the United States, opening in 1993. The school serves students in the Twin Cities and Western Wisconsin from ages 2 to 21 who are primarily Deaf, DeafBlind and Hard of Hearing students, often being visual and/or tactile learners. All students who attend have Individualized Education Plans (IEPs) and fall under the special education category, defined by the Minnesota Department of Education as students who “have a disability and need specialized instruction” (Minnesota Department of Education, n.d.). At , students are instructed in American Sign Language (ASL) and English is primarily taught through …
Redshift Wrangler: Conducting A Citizen Science Study Of Extragalactic Spectroscopy, Sadie C. Coffin
Redshift Wrangler: Conducting A Citizen Science Study Of Extragalactic Spectroscopy, Sadie C. Coffin
Theses
I present the citizen science project Redshift Wrangler, designed to use the contributions of volunteers to analyze large samples of galaxy data and build a repository of spectroscopic measurements for various analyses. When we know how to read it, the spectrum of a galaxy can tell the story of its stellar population, distance, and interactions with any close companion galaxies. Through Redshift Wrangler, citizen science measurements become our main tool for extracting information from enormous quantities of collected spectra. Several main goals motivate this work: first, designing and launching Redshift Wrangler on citizen science platform Zooniverse to bring more people …
The Sci – Dot: A New Dimension Of Scientific Innovation For Persons With Blv., Ashley N. Nashleanas Ph.D.
The Sci – Dot: A New Dimension Of Scientific Innovation For Persons With Blv., Ashley N. Nashleanas Ph.D.
Journal of Science Education for Students with Disabilities
Throughout history, students with blindness and low vision (BLV) have been vastly underrepresented in science, technology, engineering, and mathematics (STEM) disciplines with regards to both K-12 education and post-secondary endeavors (Burgstahler, 1994; Supalo, 2010). This underrepresentation of students with BLV in STEM is due to limitations in technology that allow them to access data in a laboratory setting, thus inhibiting their abilities to partake actively in data acquisition with their peers. The Sci-Dot, a multiline, refreshable braille and tactile graphics display capable of logging scientific data in real time with the support of Vernier Science Education’s (VSE) Go-Direct Bluetooth sensors, …
Predicting Payment Defaults In Customs Authorities, Ahmed Fayed Elnahel
Predicting Payment Defaults In Customs Authorities, Ahmed Fayed Elnahel
Theses
As the global economy continues to expand, international trade is growing at an unprecedented rate, resulting in a surge of cargo movements across borders. With so much activity taking place, it's imperative that customs systems operate intelligently to identify potential risks in every transaction and highlight any potential fraud or manipulation that may be occurring. Customs play a crucial role in supporting legitimate trade, protecting society, and promoting sustainable economic development. However, it is unfortunate that some companies take advantage of the facilities provided by customs departments to avoid paying their duties or engaging in smuggling from the free zone …
Human Error Assessment In Software Engineering, Benjamin S. Meyers
Human Error Assessment In Software Engineering, Benjamin S. Meyers
Theses
Software engineers work under strict constraints, balancing a complex, multi-phase development process on top of user support and professional development. Despite their best efforts, software engineers experience human errors, which manifest as software defects. While some defects are simple bugs, others can be costly security vulnerabilities. Practices such as defect tracking and vulnerability disclosure help software engineers reflect on the outcomes of their human errors (i.e. software failures), and even the faults that led to those failures, but not the underlying human behaviors. While human error theory from psychology research has been studied and applied to medical, industrial, and aviation …
Partnering For Climate Resilience: Exploring The Maturity Of Private-Sector Efforts In The Great Lakes Region, Lisa Greenwood, Yewande Abraham, Jennifer Schneider, Vicki Lin
Partnering For Climate Resilience: Exploring The Maturity Of Private-Sector Efforts In The Great Lakes Region, Lisa Greenwood, Yewande Abraham, Jennifer Schneider, Vicki Lin
Articles
Communities and businesses continue to experience the effects of climate change as global temperatures rise and extreme weather events become more frequent. In the United States (US), the public sector has traditionally been responsible for mitigating these risks; however, engaging the private sector is crucial, given industrial impacts on and vulnerability to climate change. Private-sector mitigation and adaptation efforts are critical in the Great Lakes Region due to aging infrastructure as well as its economic, environmental, and political importance in the US and Canada. This study explores private-sector resilience efforts in three Great Lakes cities to identify opportunities and trends …
Equilibrium And Active Self-Assembly And Collective Properties Of Network-Based Biomaterials, Lauren Melcher
Equilibrium And Active Self-Assembly And Collective Properties Of Network-Based Biomaterials, Lauren Melcher
Theses
Biological systems have the unique ability to self-organize, respond to environmental stimuli, and generate autonomous motion and work. The fields of biomaterials and synthetic biology seek to recapitulate these remarkable properties of biological systems in in-vitro reconstitutions of biological systems, and in abiotic or biotic-abiotic hybrid materials to better understand the underlying rules of life and to predict the design principles of biomimetic smart materials. Motivated by this, we create bottom-up mathematical models, rooted in experiments, of network-based synthetic and biological materials. These encompass two-dimensional colloidal networks connected by rhythmic crosslinkers, and three-dimensional biopolymer networks assembled via depletion interactions, physical …
B/Lv Laboratory Accessibility Technology Adapted For Neurodiverse Chemistry Students, Christin B. Monroe
B/Lv Laboratory Accessibility Technology Adapted For Neurodiverse Chemistry Students, Christin B. Monroe
Journal of Science Education for Students with Disabilities
Text-to-speech technology is a common accommodation available for students with disabilities. Despite the ubiquitous nature of text-to-speech, this technology has not been explored in laboratory settings for neurodiverse college students. This study explores the adaptability of laboratory accessible text-to-speech technology (originally developed for blind/low vision (B/LV) students) for neurodiverse students. Students were asked to provide general feedback about the usability and effectiveness of the technology using Likert surveys. The students also answered open-ended questions about how the technology could be adapted to be more neurodiverse friendly. Overall, more than 50% of the students found the technology useful but had specific …
Using Ml To Understand The Factors Impacting Diabetes In Diabetic Patients, Marwa Ahmed Almarzooqi
Using Ml To Understand The Factors Impacting Diabetes In Diabetic Patients, Marwa Ahmed Almarzooqi
Theses
Diabetes, a well-known medical condition since ancient times, has become a prevalent and significant health concern in recent decades. The rising incidence of diabetes has necessitated early diagnosis and effective treatment. Machine learning (ML) innovations have revolutionized disease prediction and decision-making by utilizing massive datasets. This study aims to develop and compare machine learning (ML) models for diabetes prediction using a preprocessed dataset of 532 instances obtained from Kaggle. Important variables included in the data set are Pregnancies, Glucose, Blood Pressure, Skin Thickness, Insulin, BMI, Diabetes Pedigree Function, Age, and Outcome. The correlation analysis revealed a strong positive association between …
Impact Of Digital Transformation On Achieving Sustainability In Utility Sector Of Uae, Abdulrahman Salem Alsaleh
Impact Of Digital Transformation On Achieving Sustainability In Utility Sector Of Uae, Abdulrahman Salem Alsaleh
Theses
The central focus of the current study is to understand the impact of digital technology on sustainable practices in a utility sector within the UAE. The research examined whether AI, blockchain, and big data can improve sustainability in the company to completely understand how digital technologies influences sustainable practices in the county’s utility sector. Data were gathered using the survey data collection method for a quantitative review. The reliability of the data was examined using Cronbach’s Alpha, and the strength of the relationships between the variables was investigated using correlation analysis. The extent to which the adoption of AI, big …
Design And Implementation Of Environmental Management System (Ems) Using Iso 14001:2015 Standard In A Medical/Healthcare Organization, Mohammed Rizwan Mirajkar
Design And Implementation Of Environmental Management System (Ems) Using Iso 14001:2015 Standard In A Medical/Healthcare Organization, Mohammed Rizwan Mirajkar
Theses
Environmental Management Systems (EMS) have been widely implemented by organizations across various industries since late 1980s. The system comprises of policies, procedures, processes, and various documents and formats that are essential not only to attain governance within organizations but also establish a robust management system. In the last decade, the need to enhance environmental performance and achieve sustainability objectives has become a business imperative for organizations across the world. Organizations are mandated to comply with environmental requirements and regulations through contractual agreements between customers and their business partners. Globally, the ISO 14001:2015 standard in its current version is the most …
Reduction In The Thermal Budget Of Sputtered Indium Tin Oxide (Ito) To Potentially Broaden Its Use In Microelectronic Devices, Zachary Flowers
Reduction In The Thermal Budget Of Sputtered Indium Tin Oxide (Ito) To Potentially Broaden Its Use In Microelectronic Devices, Zachary Flowers
Theses
Indium tin oxide, ITO, is a transparent conducting oxide widely known for its low resistivity and high transmission in the visible spectrum. It is most commonly used as a contact in optoelectronic devices, where its transmission is paramount to the function of the device. In this work, a low thermal budget process to sputter ITO films to potentially expand its applications in the RIT cleanroom was developed. The baseline process utilized a dielectric In2O3:SnO2 sputter target and a 2 hour, 400◦C post deposition anneal step to achieve a high quality film. This work achieved films with similar properties, but with …
Graph-Based Learning Networks For Automatic Pigment Mapping Of Historical Artifacts, Bei Cao
Graph-Based Learning Networks For Automatic Pigment Mapping Of Historical Artifacts, Bei Cao
Theses
Hyperspectral image classification can be a difficult task due to a lack of ground-truth labels and spectral variability. For hyperspectral images (HSIs) of historical artifacts, which are generally man-made objects, this is generally a significant challenge. Aiming to differentiate subtle spectral differences between varied pigments, we introduce graph- based learning networks and a powerful learning pipeline for realizing automatic pigment mapping on the maps. First, we develop a Graph Modularity clustering method for pro- ducing trustworthy ground-truth map for pigment classification task. We analyze the influence of graph structure on the Graph Neural Networks and propose Spatial-Spectral Graph Convolutional Network …
Optimization Of Alternative Mask Absorber Materials For Euv Lithography, Rajiv Naresh Sejpal
Optimization Of Alternative Mask Absorber Materials For Euv Lithography, Rajiv Naresh Sejpal
Theses
In efforts to continuously scale feature dimensions in semiconductor manufacturing, the industry has moved from refractive optical lithography to reflective extreme ultra-violet lithography (EUVL). The latter provides a significant improvement in the resolution by illuminating mask patterns using 13.5nm source wavelength at oblique chief ray angles (CRA). A typical EUVL mask consists of a multilayer Bragg mirror topped with a 55-70nm Tantalum-based (Ta-based) absorber stack to obtain layout patterns. This current three-dimensional (3D) mask architecture in combination with a small source wavelength and oblique illumination angles results in mask 3D (M3D) effects such light shadowing, pitch dependent best focus variations, …
Deep Reinforcement Learning And Hybrid Approaches To Solve Multi-Vehicle Combinatorial Optimization Problems, Prashant Sankaran
Deep Reinforcement Learning And Hybrid Approaches To Solve Multi-Vehicle Combinatorial Optimization Problems, Prashant Sankaran
Theses
Combinatorial optimization problems are an important class of problems often encountered in the real world involving a combinatorially growing set of feasible solutions as the problem size increases. Since exact approaches can be computationally expensive, practitioners often use approximate approaches such as metaheuristics. However, sophisticated approximate methods that yield high-quality solutions require expert help to handcraft or fine-tune the solution process to suit a given problem distribution. In recent years, artificial intelligence (AI) approaches that involve learning from data without being explicitly programmed have shown tremendous success at various challenging tasks, like natural language processing and autonomous driving. Therefore, solving …
Analysis Of The Aerosol Composition, Its Deposition And Uptake In Electronic Cigarette Users, Chamodhi Ravihansi Polgampola Ralalage
Analysis Of The Aerosol Composition, Its Deposition And Uptake In Electronic Cigarette Users, Chamodhi Ravihansi Polgampola Ralalage
Theses
Electronic cigarettes (e-cigarettes) generate aerosol (particles in a gas matrix) by vaporizing the e-liquid, consisting of propylene glycol (PG), glycerol (GL), nicotine, and other additives. Aerosol enters the respiratory tract (RT) of the user, where part of it is deposited, while the rest is exhaled. Compounds in the gas and particle phase have different deposition mechanisms in the RT, thus determining the location of deposition. The location of deposition and amount of a compound will influence the biological response in the body. Identifying the composition of each constituent in the gas phase and particle phase would enhance the understanding of …
Synthesis Of Sustainable Polyethylene Mimics Through Ring-Opening Metathesis Polymerization, Brandon Zhang
Synthesis Of Sustainable Polyethylene Mimics Through Ring-Opening Metathesis Polymerization, Brandon Zhang
Theses
Polyethylene is the most produced plastic in the world due to its versatility and ubiquitous applications. The production and use of polyethylene however pose sustainability issues such as using petroleum resources and the persistence of its waste in landfills and oceans. Though not every issue can be addressed simultaneously, the more critical issue is to develop a polyethylene that can degrade within a few months instead of hundreds of years. A possible solution is to synthesize a polyethylene mimic, consisting of long chain of methylene groups with an occasional input of a functional group while maintaining similar properties as that …
Commissioning The Tomographic Ionized-Carbon Mapping Experiment, Benjamin James Vaughan
Commissioning The Tomographic Ionized-Carbon Mapping Experiment, Benjamin James Vaughan
Theses
Line intensity mapping is a novel technique that traces the evolution of cosmological structure sourcing a particular emission line through measurements of the aggregate emission of all galaxies along a line of sight. The Tomographic Ionized-carbon Mapping Experiment (TIME) is a far infrared waveguide imaging spectrometer that operates from 183-323 GHz, allowing it to trace the emission of the singly ionized carbon fine structure line ([CII], 157.7 µm) from redshift 5 to 9 to probe the infrared emission from star formation during the Epoch of Reionization. Further, TIME will also perform line intensity mapping observations of several carbon monoxide rotational …
Visualizing A Thought-Actuated 3d Printed Prosthesis, Brett Walter
Visualizing A Thought-Actuated 3d Printed Prosthesis, Brett Walter
Theses
The e-NABLE Project has created a worldwide network of passionate volunteers who utilize 3D printing technology to provide prosthetic hands to individuals who may not otherwise be able to obtain one. Most of these recipients are children in underdeveloped countries who have suffered from Amniotic Band Syndrome (ABS) and cannot seek expensive medical prosthetics. ABS occurs when fibrous bands from the amniotic sac wrap tightly around a fetus’s extremities (most commonly fingers), restricting blood flow and ultimately resulting in complete amputation. The e-NABLE Project’s prosthesis utilizes the functional wrist and fingerless palm to push against the device, contracting the mechanical …
3d Computational Modeling Of Multiphase Phenomena In Boiling Heat Transfer, Winston O. James Iii
3d Computational Modeling Of Multiphase Phenomena In Boiling Heat Transfer, Winston O. James Iii
Theses
Boiling heat transfer is used in industrial processes, such as heat exchangers, nuclear reactors, and high-powered electronics. There is a need to generate effective heat dissipation techniques to increase the operation limits of these technologies. To enhance heat dissipation with boiling flows, it is important to study boiling phenomena from a fundamental perspective to identify the relation between the fluid and heat transfer behavior near the interface during bubble growth. Boiling simulations have been used as a tool to visualize and quantify the heat transfer mechanisms near the interface. However, challenges exist in modeling bubble growth with a sharp interface …
Purification And Detection Of Antibiotic-Resistant Bacteria From Whole Blood With Nano-Sieve, Xinye Chen
Purification And Detection Of Antibiotic-Resistant Bacteria From Whole Blood With Nano-Sieve, Xinye Chen
Theses
Life-threatening bloodstream infections (BSI), such as sepsis, mainly caused by the body’s syndromic response to pathogen infection, are a major public health concern, leading to ~11 million deaths each year. The identification of sepsis presents significant challenges in the diagnostic process, as the isolation of low concentration pathogens from bodily fluids (e.g., human blood) is extremely demanding, and typically relies on time-consuming and complicated isolation processes. Therefore, this work aims to explore the potential of microfluidics as a powerful tool for rapid purification and concentration of antibiotic-resistant bacteria (ARB) from blood samples, meanwhile developing a molecular diagnostic technology by combining …
Influence Of Forming Forces On Torsional, Tensile, And Compressive Deformation Of Paperboard Packages, Arvo Niini, Panu Tanninen, Juha Varis, Ville Leminen
Influence Of Forming Forces On Torsional, Tensile, And Compressive Deformation Of Paperboard Packages, Arvo Niini, Panu Tanninen, Juha Varis, Ville Leminen
Journal of Applied Packaging Research
Paperboard packages were tested mechanically to investigate influence of forming forces on torsional, tensile, and compressive deformation. The packages were paperboard trays which were press formed with different pressing forces and blank holder forces. Deformation of the trays was observed with torsion, compression, and tensile tests. A statistical analysis of test results was conducted to derive optimal forming forces. Increased pressing force yielded desirable deformation characteristics with the trays. Blank holder force had largest impact on the compressive deformation. Interaction of the pressing force and the blank holder force influenced the torsional and the compressive deformation. The optimal forming forces …