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Modeling And Integration Method Of Sysml Model For Complex Business Scenarios, Bing Yu, Baoran An, Shicao Zhao
Modeling And Integration Method Of Sysml Model For Complex Business Scenarios, Bing Yu, Baoran An, Shicao Zhao
Journal of System Simulation
Abstract: The development process of complex equipment involves multi-stage business processes, multi-level product architecture, and multi-disciplinary physical processes. The relationship between its system model and various disciplinary models is extremely complicated. In the modeling and integration process, extensive customized development is needed to realize model integration and interoperability in different business scenarios. Meanwhile, the differences in modeling and interaction between different modeling tools make it difficult to support the consistent representation of models in complex scenarios. To improve the efficiency of system modeling and integration in complex business scenarios, a system modeling and integration method was proposed. This method took …
Algorithm And Semi-Physical System Simulation For Command Intent Recognition Of Uav In Low-Resource Environment, Hongfu Liu, Yajing Fu, Wanpeng Zhang, Hu Zhang
Algorithm And Semi-Physical System Simulation For Command Intent Recognition Of Uav In Low-Resource Environment, Hongfu Liu, Yajing Fu, Wanpeng Zhang, Hu Zhang
Journal of System Simulation
Abstract: When a communication network is partially disabled or disrupted, an UAV is plunged into a "low-resource environment" and must rely on local hardware resources. This situation imposes constraints on computing power, storage capacity, and energy availability. To address the need for command intent recognition in such environments, a semi-physical simulation system for UAV in emergency rescue operations has been designed and implemented. Based on the low resource airborne hardware in the loop, the system simulates UAV command intention recognition and mission planning through GIS+BIM 3D environment modeling task scenarios. A new lightweight algorithm for intent recognition has been proposed, …
Uav Swarm Obstacle Avoidance Based On Visual Filed And Adaptive Radius, Gaohang Ai, Chuntao Li
Uav Swarm Obstacle Avoidance Based On Visual Filed And Adaptive Radius, Gaohang Ai, Chuntao Li
Journal of System Simulation
Abstract: Aiming at the obstacle avoidance problem of large-scale UAV swarm tracking flight route, a swarm obstacle avoidance algorithm based on distributed model predictive control combined with visual field and adaptive obstacle avoidance radius is proposed. In the process of swarm flight, the UAV obtains the reference route information of the current moment according to its own position, and obtains the predicted trajectory of its neighbors through local information interaction. When encountering obstacles, the adaptive obstacle avoidance radius and field of view topology method are combined to effectively solve the problem that the internal safety distance cannot be maintained and …
A Novel Research Pattern For The Simulation Of Complex Systems Sigd, Bin Chen, Runkang Guo, Zhengqiu Zhu, Yong Zhao, Yatai Ji, Aiguo Chen, Guangquan Cheng
A Novel Research Pattern For The Simulation Of Complex Systems Sigd, Bin Chen, Runkang Guo, Zhengqiu Zhu, Yong Zhao, Yatai Ji, Aiguo Chen, Guangquan Cheng
Journal of System Simulation
Abstract: The complexity of the system is mainly reflected in the numerous components and extremely complex interactions. Combined with the current trend of artificial intelligence development, this paper analyzes and considers the changes in thinking mode brought by simulation discipline research, and forms an understanding of the connotation and research scope of simulation intelligence. A new pattern for complex system simulation research is proposed: "simulation intelligence based generating decisions (SIGD)". In the SIGD pattern, the similar principles, modeling methods, and decision-guiding modes in simulation disciplines are different from those in traditional simulation. Under the guidance of this concept, a connection-oriented …
Optimizing Brake Bias In Formula Sae: A Framework For New And Existing Members, Benjamin Swonger
Optimizing Brake Bias In Formula Sae: A Framework For New And Existing Members, Benjamin Swonger
Mechanical Engineering and Materials Science Independent Study
Formula SAE cars undergo various events where different brake biases are beneficial. Brake bias, the percentage of braking force between the front and rear brakes, plays a crucial role in the car’s overall performance and safety. Correct tuning and diagnostic of the brake system greatly improves stability, minimizes wheel lock-up, and reduces the risk of under and oversteer. This report provides a framework methodology and analysis to optimize brake bias in most situations. The objective is to provide a base knowledge of the brake system that gives new team members a step-by-step guide that simplifies the brake bias calculation and …
An Intelligent System Using Deep Learning For Healthcare Monitoring In Light Of The Covid-19 And Future Pandemics Based On Iot, Sara Salman Qasim, Rajaa J. Khanjar, Jamal Nasir Hasoon, Baesher Abdullateff Abad, Ali Hussein Fadil, Shajan.M. Alsowaidi
An Intelligent System Using Deep Learning For Healthcare Monitoring In Light Of The Covid-19 And Future Pandemics Based On Iot, Sara Salman Qasim, Rajaa J. Khanjar, Jamal Nasir Hasoon, Baesher Abdullateff Abad, Ali Hussein Fadil, Shajan.M. Alsowaidi
Al-Esraa University College Journal for Engineering Sciences
Recently, the Internet of Things has become a compelling research field as a new topic of research in various disciplines, particularly in the field of healthcare, because the Internet of Things is rebuilding modern healthcare systems by integrating technology, economics, and social perspectives. The development of healthcare systems from traditional to more personalized systems in which patients can be easily diagnosed, monitored and treated and many people can be helped. People are treated and cared for remotely and this is what some people need in the crisis the world has been through like COVID-19. This epidemic is caused by the …
An In-Depth Analysis And Comparison Of Eco And Non-Eco Surfboard Waxes, Markos Kaskaneas - Efthymiou
An In-Depth Analysis And Comparison Of Eco And Non-Eco Surfboard Waxes, Markos Kaskaneas - Efthymiou
The Plymouth Student Scientist
Questions regarding the sustainability of petroleum-based surfboard waxes gave rise to the development and marketing of a sustainable alternative called “Eco” surf wax. The chemistry behind surf waxes is generally unknown and there is no published research on the area of surf waxes. In this analysis, the chemical properties of both types of waxes were investigated, to determine the difference between non-eco and eco waxes and between different water temperature rating waxes. 15 surf wax samples (10 non-eco, 5 eco) were extracted into organic and inorganic fractions and analysed by FT-IR, GC-MS, and HTGC-FID/MS. Multivariate statistical analysis was also performed. …
Developing A Method To Identify Tyre Particles By Detecting Benzothiazole Via Gc-Ms, Emma Paull
Developing A Method To Identify Tyre Particles By Detecting Benzothiazole Via Gc-Ms, Emma Paull
The Plymouth Student Scientist
Tyre particles are a dominant source of microplastic pollution in our environment. However, their chemical and physical properties are poorly understood and no standardised methods for identifying and quantifying them exist. This study looked to develop a method to identify tyre particles using two tyre samples of differing particle sizes, fine (62 - 125 µm) and coarse (250 – 500 µm). Both samples underwent ultrasound-assisted extraction before being analysed via gas chromatography-mass spectrometry (GC-MS) in both full scan and SIM mode, using benzothiazole as a marker. Both samples were also analysed via particle size analysis, scanning electron microscopy (SEM) and …
Measurement Of The Mechanical Properties Of Blood Vessels Using A Vascular Simulation Rig, Jack Lockyer
Measurement Of The Mechanical Properties Of Blood Vessels Using A Vascular Simulation Rig, Jack Lockyer
The Plymouth Student Scientist
Understanding the mechanical properties of blood vessels is crucial for reconstructive surgeons who connect donor tissue flaps to recipient sites. This paper describes the development of a vascular simulation test rig that delivers pulsatile flow to a blood vessel sample while continuously monitoring system pressure and sample diameter. These measurements allow for the calculation of the viscous coefficient, an important mechanical property for comparing blood vessels. A pilot test using the rig demonstrates its ability to measure pressure and diameter and highlights necessary improvements to enhance data quality. The pilot test shows that the current rig can measure 5 mm …
Synthesis And Characterisation Of An Acetylcholinesterase Inhibitor, Elijah Rahman-Riding
Synthesis And Characterisation Of An Acetylcholinesterase Inhibitor, Elijah Rahman-Riding
The Plymouth Student Scientist
Acetylcholinesterase (AChE) inhibitors are currently the only effective treatment for people with Alzheimer’s disease (AD), a fatal neurodegenerative disease that affects 50 million people worldwide at present but is expected to rise dramatically over the next 30 years. The aim of this research was to synthesise an AChE inhibitor derivative of tacrine, 4-chloro-2(((1,2,3,4-tetrahydroacridin-9yl)imino)methyl)phenol (chlorophenol tacrine). This was achieved by first synthesising tacrine, evidencing successful synthesis and assaying purity of the product, then, synthesising a simple derivative, acetyl tacrine, before chlorophenol tacrine. At every stage of the investigation comprehensive structural analysis of each product was obtained using FT-IR, CHN analysis, GC-FID, …
Development Of A Climbing Performance Analysis Tool Using Computer Vision, Guy Ludford
Development Of A Climbing Performance Analysis Tool Using Computer Vision, Guy Ludford
The Plymouth Student Scientist
Indoor bouldering, a rapidly growing sport in the UK and globally, has seen a significant rise in participation, paralleled by an increase in the use of fitness apps and wearable trackers. Despite this growth, tracking and recording metrics for indoor climbing remains a challenge. This paper proposes an automated tool utilising computer vision and a gym-wide camera system to collect data on routes climbed and attempts made, without the need for manual logging. This tool aims to provide climbers with detailed performance analysis and support climbing gyms in optimising route setting and member engagement. Initial market research and discussions with …
Investigation Of The Use Of Nanotechnology In Food Packaging, Ollie-May Woodland
Investigation Of The Use Of Nanotechnology In Food Packaging, Ollie-May Woodland
The Plymouth Student Scientist
This review discusses topics related to the use and development of nanotechnology and nanomaterials in food packaging applications. The accelerated use of these technologies brings about relevant safety, environmental, ethical and legislative/ regulatory concerns and as such the aim of this work is to assess the viability of the use of current commercialised nano-enabled packaging and to evaluate the potential future trends in the progression of these technologies against public opinion and potential risk(s). The data for this report was collected through comprehensive research of nanotechnology and its applications, specifically the packaging industry in the food sector. An online survey …
Influence Of Patch Characteristics On Pollinator Behavior And Seed Production In Centaurea Stoebe, Abigail Hiltke
Influence Of Patch Characteristics On Pollinator Behavior And Seed Production In Centaurea Stoebe, Abigail Hiltke
Theses - ALL
Discontinuous, or patchy, landscapes may affect pollinator foraging behaviors and could potentially lower the fitness of isolated plant communities by limiting and/or altering pollination services. I tested this idea by examining changes in pollinator behavior in patches of spotted knapweed of different size, flower density, and distance from one another. Based on predictions from optimal foraging theory, I identified and measured key pollination promoting behaviors that may change when foragers are exposed to discontinuous landscape. These behaviors were pollinator visitation rates to patches, the number of visits to individual flowers within patches, and the handling time per flower. These factors …
Application Of Two-Directional Carbonyl Ene Reaction To The Synthesis Of Complex Tetrahydropyrans, And Studies Toward The Synthesis Of C26-C39 Subunit Of Spirastrellolide B., Md Abid Abid Hasan
Application Of Two-Directional Carbonyl Ene Reaction To The Synthesis Of Complex Tetrahydropyrans, And Studies Toward The Synthesis Of C26-C39 Subunit Of Spirastrellolide B., Md Abid Abid Hasan
Dissertations - ALL
The use of exocyclic enol ethers as nucleophiles in carbon-carbon bond forming reactions has been underutilized in organic synthesis. This work describes the use of 6-iodomethyl-2-methylenetetrahydropyran as a bis-exocyclic enol ether equivalent for the synthesis of pyran derivatives. Use of this linchpin allows for bidirectional elaboration of the pyran core by two directional carbonyl ene. The development of a convergent, modular synthesis of 2,6-disubstituted-4H-pyrans in a three-step sequence starting from 6-iodomethyl-2-methylenetetrahydropyran is described. Initial carbonyl ene reaction of 6-iodomethyl-2-methylenetetrahydropyran with aldehydes or activated ketones was followed by elimination of iodide to give cross oriented bis-enol ethers that contain both endocyclic …
Effects Of Self-Determination Theory (Sdt)-Based Instructional Strategies On Learner Engagement In Asynchronous Online Discussions (Aods), Qi Wu
Dissertations - ALL
Abstract Learner engagement is a malleable state influenced by various contextual factors. Prior research has identified several elements that affect engagement, including learning styles, course perception, computer self-efficacy, and a sense of presence. Furthermore, it is imperative to consider both learner engagement dimensions and environmental affordances when investigating learner engagement. This study, grounded in Self-Determination Theory (SDT), investigates the effects of SDT-based instructional strategies on learner engagement in asynchronous online discussions (AODs). The primary aim is to examine how these strategies, designed to support learners perceived psychological needs of autonomy, relatedness, and competence, affect behavioral, cognitive, and emotional dimensions of …
Real-Time Control (Rtc)-Based Urban Flood Risk Assessment Framework For Arid And Semi-Arid Regions, Sulaiman Altami
Real-Time Control (Rtc)-Based Urban Flood Risk Assessment Framework For Arid And Semi-Arid Regions, Sulaiman Altami
Dissertations - ALL
Global climate change has recently increased Flood Risk (FR) disasters in arid and semi-arid regions, particularly in Gulf countries, such as the Kingdom of Saudi Arabia (KSA). Arid regions generally face low rain on average during a year, but flash floods occur during rainfall of longer return periods due to urbanization and climate change. Flood Risk Assessment (FRA) outcomes enable municipalities (planners and decision-makers) in arid urban areas to develop flood management strategies and mitigate the issues of drainage systems, which may otherwise affect the quality of life. FRA is an effective tool for not only identifying high-risk areas but …
Development Of A Real-Time Convolution System To Simulate Speech In Different Rooms For The Study Of Vocal Strain, Bethany E. Wu
Development Of A Real-Time Convolution System To Simulate Speech In Different Rooms For The Study Of Vocal Strain, Bethany E. Wu
Theses and Dissertations
Due to prevalent vocal health issues in teachers, the acoustics of K-12 classrooms has become a topic of study in acoustics. One way to understand the effects of a classroom's physical space on speech is with vocal effort studies. This thesis aims to enable these studies, without the need to move a talker from room to room, by creating auralizations through real-time convolution of speech with oral binaural room impulse responses (OBRIRs). These auralizations can be used to test talkers inside an anechoic chamber as they experience speaking in different acoustical environments. A system that can successfully execute convolution in …
The Evolution Of The University Of Al-Anbar Urban Planning Based On The Mental Picture's Diversity And The Contemporary Planning Spaces Filling, Ali Abdulsamea Hameed
The Evolution Of The University Of Al-Anbar Urban Planning Based On The Mental Picture's Diversity And The Contemporary Planning Spaces Filling, Ali Abdulsamea Hameed
Al-Esraa University College Journal for Engineering Sciences
This research concentrated on the role of environmental graphic design (EGD) and the place-making idea in the interior environment of Al-Anbar University. To develop an identity being visual for the University of Al-Anbar internal environment (IE) is this goal of project. The search sought to create and enhance the shape of the internal University of Al-Anbar vacuum by reviving the idea of place building. In order to build and filling the internal emptiness of the campus, the identity being visual must also be strengthened. The descriptive analytical approach was chosen since it was best suited to achieve the goal of …
Population Dynamics In Myxococcus Xanthus Developmental Biofilm, Trosporsha Tasnim Khan
Population Dynamics In Myxococcus Xanthus Developmental Biofilm, Trosporsha Tasnim Khan
Dissertations - ALL
Myxococcus xanthus, a soil-dwelling bacterium, exhibits complex multicellular behaviors through self-organization into biofilms. M. xanthus cells traverse agar surfaces, forming either predatory biofilm or vegetative swarm that expands outward in the presence of nutrients. Upon nutrient depletion, the swarm reorganizes as cells “stream” inward, coalescing into aggregates that mature into spore-filled fruiting bodies. This starvation-induced biofilm development is a complex process, governed by stringent genetic controls and coordinated population interactions. Despite extensive research into the dynamics of this development, from the onset of starvation to fruiting body maturation, a comprehensive understanding is still missing. This dissertation sheds light on the …
Student Understanding Of Trigonometric Functions: Exploring Understanding Through The Use Of Contextual Tasks, Julia Hatt
Dissertations - ALL
Researchers in mathematics education have studied many facets of teaching and learning mathematical functions, however, research focusing on trigonometric functions is sparse. Mathematics education researchers have also studied the importance of and impact of mathematical tasks for learning. For example, the framework of Realistic Mathematics Education (RME) emphasizes learning mathematics situated in reality and using rich contexts that provide learners with opportunities to reinvent mathematics in a way that is meaningful to them. Despite this valuable research, there exist gaps between the findings from these studies and their enactment in classrooms. As such, this qualitative study sought to extend frameworks …
An Optimization Framework For Data Enrichment: A First Principles Approach To Designing Optimal Smoothers And Splines, Griffin Michael Kearney
An Optimization Framework For Data Enrichment: A First Principles Approach To Designing Optimal Smoothers And Splines, Griffin Michael Kearney
Dissertations - ALL
We develop a general framework for state estimation in systems modeled with stochastic dynamics and noisy measurements. Our approach is based on maximum likelihood estimation and employs a variety of techniques from optimization theory including the calculus of variations and discrete optimization to derive optimality conditions for many different types of problems. We make no rigid assumptions on the form of the mapping from measurements to state-estimate or on the distributions of the random processes, making the framework more general than existing techniques such as splines, Kalman smoothing or Gaussian Process Regressions, which are subject to limiting restrictions and modeling …
Studies Towards The Synthesis Of A Simplified Forskolin Core And Phomactin A, Fortune Ononiwu
Studies Towards The Synthesis Of A Simplified Forskolin Core And Phomactin A, Fortune Ononiwu
Dissertations - ALL
Oxadecalins are privileged scaffolds found in various natural products that show biological activity, such as platelet aggregating factor antagonism and activation of adenyl cyclase. As such, various synthetic methods such as intramolecular substitution reactions and [4+2] cycloadditions have been developed for the construction of these important intermediates. Studies towards the synthesis of a simplified core of the labdane diterpene, forskolin, are described. Forskolin is the only known supplement to naturally raise cAMP levels, thereby displaying important pharmacological properties. The synthetic route described features a Lewis acid catalyzed dihydropyrone Diels-Alder reaction for rapidly assembly of the ABC tricycle. Modified Saegusa-Ito oxidation …
I Want To Love How I Do Learn: A Phenomenological Study Of Adult Learners With General Learning Disabilities And Their Goals For Postsecondary Education, Diana Muller Katovitch
I Want To Love How I Do Learn: A Phenomenological Study Of Adult Learners With General Learning Disabilities And Their Goals For Postsecondary Education, Diana Muller Katovitch
Dissertations - ALL
A subset of individuals with learning disabilities is currently prevented from accessing postsecondary education; these individuals experience general learning disabilities, or GLD (Greenspan, 2017, p. 117). GLD is not a formal disability category in K-12 special education; individual students might not be eligible for academic supports and accommodations in K-12 or in postsecondary education based on this description. Individuals with GLD encounter significant barriers both accessing and finding success in postsecondary education. Qualitative research involving adults with GLD is lacking in available literature, as is theoretical analysis of their experiences. My research is a phenomenological study based on the experiences …
On Physical Processes That Work Like Learning Algorithms, Vidyesh Rao Anisetti
On Physical Processes That Work Like Learning Algorithms, Vidyesh Rao Anisetti
Dissertations - ALL
Adaptive behavior is a widespread phenomenon observed in both living and non-living systems, manifesting in diverse forms such as the directional growth of plants in response to sunlight and the directed aging of materials. Such diversity demands a physics-based approach. Thus, the emerging field of physical learning aims to explain these phenomena by drawing analogies between adaptive processes in nature and learning in neural networks, motivating the central question of this thesis: Can physical processes in nature function like learning algorithms? A typical learning algorithm involves two fundamental steps: signaling and weight up- dating. In the Part I of the …
On The Use Of Introspection In The Study Of Consciousness, Yaojun Lu
On The Use Of Introspection In The Study Of Consciousness, Yaojun Lu
Dissertations - ALL
For the past half century, introspection has once again become a trusted source of knowledge in the study of consciousness. Some philosophers reflect on their own consciousness to draw metaphysical conclusions; some psychologists hypothesize observable regularities of consciousness by collecting introspective reports. They operate under the doctrine that first-person perspective provides a privileged access to the conscious mind. This dissertation is a critical examination of the use of introspection in the scientific and metaphysical study of consciousness. I first develop classic criticism of the privileged access, with a diagnosis of the failure of introspective psychology and a reflection on the …
Enhancing Graph Neural Networks By Editing Graphs, Jiayu Li
Enhancing Graph Neural Networks By Editing Graphs, Jiayu Li
Dissertations - ALL
Graphs are pervasive in both the natural world and various domains of science and engineering. Numerous advanced classifiers, such as Graph Neural Networks (GNNs), have been developed to perform node classification on these graphs. However, as graphs become denser with an increasing number of edges, GNNs often suffer from suboptimal generalization performance due to the presence of task-irrelevant connections. These redundant connections can introduce noise, consume excessive computational resources, and degrade performance. Identifying and preserving critical connections in large-scale graphs, while pruning unnecessary ones, is crucial for enhancing the efficiency and accuracy of GNNs in node classification, particularly for GCNs. …
Studies On The Synthesis, Reactivity, And Stability Of Au Nanoparticles In Ts-1 Zeolites For Propylene Epoxidation Within H2/O2 Mixtures, Weixin Li
Dissertations - ALL
The increasing global demand for energy and materials has highlighted the importance of efficient production of chemical intermediates like propylene oxide (PO), a key compound in manufacturing polyurethanes, propylene glycol, and other industrial products. Traditional methods, such as the chlorohydrin process and organic peroxide methods, pose environmental and economic challenges due to hazardous by-products and complex processes. The need for greener alternatives led to the exploration of gold (Au) catalysts for the direct catalytic epoxidation of propylene using hydrogen (H2) and oxygen (O2). This research focused on understanding the propylene epoxidation process over Au catalysts, specifically Au nanoparticles (AuNPs) supported …
Peptides And Metalloproteins: Evolution, Catalysis And Material Design, Dona Imanga Upamadi Edirisinghe
Peptides And Metalloproteins: Evolution, Catalysis And Material Design, Dona Imanga Upamadi Edirisinghe
Dissertations - ALL
Peptide hydrogels are an important class of biomaterials that have gained significant attention in recent years. The stimuli responsive materials change their properties in response to pH, redox, temperature and enzymes and this property allowed us to design the materials with tunable properties based on their end application. This dissertation reports the de novo design, synthesis and characterization of short chain peptide sequences and optimizations of those in order to develop them into potential candidates in wound care and drug delivery applications. The investigation of these novel peptide sequences will open up new possibilities to tailor the properties through simple …
Mediating Roles To Develop Literacy Skills: A Formative Research Project Exploring Planning Tools Which Support Co-Practice For English Language Learners, Deborah Ann Moriarty
Mediating Roles To Develop Literacy Skills: A Formative Research Project Exploring Planning Tools Which Support Co-Practice For English Language Learners, Deborah Ann Moriarty
Dissertations - ALL
ABSTRACT Mediating Roles to Develop Literacy Skills: A Formative Research Project Exploring Planning Tools Which Support Co-practice for English Language Learners Educators are often required to mediate many factors while engaging in the act of literacy instruction. It is an insurmountable task to maneuver varied approaches, curricular expectations, achievement goals and overall system dynamics while teaching. This is confounded when teachers are differentiating to meet the needs of English language learners. The additional support of both literacy and English as a New Language (ENL) consultant teachers is intended to assist classroom teachers with this important work, however, collaboration becomes yet …
Overcoming Obstacles To Interdisciplinary Research: Empirical Insights And Strategies [Peer-Reviewed Journal], Cristo Leon Ph.D., James Lipuma Ph.D.
Overcoming Obstacles To Interdisciplinary Research: Empirical Insights And Strategies [Peer-Reviewed Journal], Cristo Leon Ph.D., James Lipuma Ph.D.
STEM for Success Resources
Explore how to overcome obstacles to interdisciplinary research with strategies for transdisciplinary communication, breaking silos, and fostering collaboration. Read insights from Cristo Leon and James Lipuma in this impactful study.