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Articles 61351 - 61380 of 294564

Full-Text Articles in Physical Sciences and Mathematics

Finite N-Quandles Of Twisted Double Handcuff And Complete Graph, Veronica Backer-Peral Apr 2022

Finite N-Quandles Of Twisted Double Handcuff And Complete Graph, Veronica Backer-Peral

Honors Thesis

The Double Handcuff and K4 graphs can be generalized to a single family of spatial graphs by adding a variable number of twists between two edges. We can identify spatial graphs by calculating a quotient of the fundamental quandle, known as an N-quandle, which is a spatial graph invariant. In this paper, we prove that the N-quandle associated with this family of spatial graphs is finite when all but two edges are given a label of 2, and the remaining two edges are assigned labels from the natural numbers. To prove that the N-quandle is finite, we produce Cayley graphs …

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Research On Discrete Workshop Task Assignment Based On Improved Water Filling Algorithm, Kaituan Feng, Jie Yuan Apr 2022

Research On Discrete Workshop Task Assignment Based On Improved Water Filling Algorithm, Kaituan Feng, Jie Yuan

Journal of System Simulation

Abstract: Aiming at the unsatisfactory the results of the real-time dynamic task allocation in discrete workshops are not ideal, an improved water filling algorithm is proposed. Compared with the equal cost allocation of the water injection algorithm, the processing rate and cost factors are added to the improved water injection algorithm to coordinate the processing rate, the cost and the workpieces. The allocation of the different cost workpieces is realized and the result is adjusted, which can meet the requirements of discrete distribution. The improved water injection algorithm can dynamically allocate the newly added workpieces in real time. The proposed …

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Virtual Scene Stereoscopic Panorama Generation And Viewport Rendering Algorithm, Haoxiang Li, Chunyi Chen, Xiaojuan Hu, Yunbiao Liu, Qiwei Xing Apr 2022

Virtual Scene Stereoscopic Panorama Generation And Viewport Rendering Algorithm, Haoxiang Li, Chunyi Chen, Xiaojuan Hu, Yunbiao Liu, Qiwei Xing

Journal of System Simulation

Abstract: Aiming at the nonuniform sampling in map projection and the redundancy in aspheric projection, spherical Fibonacci lattices is used to sample the visible spherical area to generate spherical Fibonacci lattice panorama with low-redundancy and high-quality. On the basis of panoramic stereo imaging model, the binocular ray direction generation algorithm for spherical stereo panorama is proposed. With Fibonacci grid, an adaptive filtering method of light-visibility map for panorama is designed to generate spherical panorama with approximate soft shadow. The nearest neighbor interpolation is used to render the viewport of panorama. Extensive experiments show that the frame frequency of the viewport …

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Study On Near-Body Pressure Characteristics Of Bionic Robotic Fish Undulating In Near Wall Region, Ou Xie, Aiguo Song, Qixin Zhu Apr 2022

Study On Near-Body Pressure Characteristics Of Bionic Robotic Fish Undulating In Near Wall Region, Ou Xie, Aiguo Song, Qixin Zhu

Journal of System Simulation

Abstract: To avoid unbalanced workload assignment, we studied the vehicle routing problem with refined oil secondary distribution considering workload balance. A bi-objectivemixed integer programming model was built to minimize the total distribution cost and the maximum difference in vehicle route length. A heuristic variable neighborhood tabu search algorithm was designed. An improved Solomon_I1 insertion algorithm was developed to generate afeasible initial solution such that the total distribution cost was as small as possible. Then, the variable neighborhood tabu search algorithm was used to improve the initial solution and thereby obtain the approximate optimal solution. The simulation results show that in …

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Key Technology Research On Stall Spin Simulation Training System Of An Aircraft, Guangxu Xi, Yongyi Liu, Chong Wu, Junjie Zhang, Yinghao Chen Apr 2022

Key Technology Research On Stall Spin Simulation Training System Of An Aircraft, Guangxu Xi, Yongyi Liu, Chong Wu, Junjie Zhang, Yinghao Chen

Journal of System Simulation

Abstract: In order to realize the simulation continuity of the multi-state evolution of traffic and to solve the problem that multi-state traffic can only be simulated by single state traffic through multiple times, the middleware model of continuous traffic event simulation is built by the secondary development interface of VISSIM simulation software, and the original two related traffic simulation events are jointly driven. The secondary development of VISSIM-com is carried out by C# and database. The survey data of the intersection of Ganghua Road and Baihua Road in the Yuzhong District of Chongqing is selected as the example, and the …

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Simulation On Mutual Interference Of Laser Radar In Road Environments, Xuesong Mao, Runlong Lei, Shaowei Huang, Xuetao Mao Apr 2022

Simulation On Mutual Interference Of Laser Radar In Road Environments, Xuesong Mao, Runlong Lei, Shaowei Huang, Xuetao Mao

Journal of System Simulation

Abstract: Transmission line inspection is an important work to ensure the safe operation of the power grid. It involves the live-work, the power-outage-maintenance and the fault-diagnosis. Training using only 3D virtual technology cannot achieve realistic results. It is necessary to combine 3D virtual scenes with digital grids. To this end, using the collected monitoring data and multi-time-scale calculation models, a twin state digital power grid has been constructed for the live-work, a parallel state digital power grid has been constructed for the power-outage-maintenance, and corresponding analog devices have been added to the parallel digital power grid to complete the training …

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Stability Analysis Of Delay-Driven Coupled Cantilevers Using The Lambert W-Function, Daniel Siebel-Cortopassi Apr 2022

Stability Analysis Of Delay-Driven Coupled Cantilevers Using The Lambert W-Function, Daniel Siebel-Cortopassi

USF Tampa Graduate Theses and Dissertations

A coupled delay-feedback system of two cantilevers can yield greater sensitivity than that of asingle cantilever system, with potential applications in atomic force microscopy. The Lambert W-function analysis concept for delay differential equations is used to more accurately model the behavior of specific configurations of these cantilever systems. We also use this analysis concept to find parameters which yield stability for greater parameter ranges, of the delay differential equations. The Q factor, or quality factor, is the ratio of energy stored in the system, to the energy lost per fixed oscillation/movement cycle. Having stability of the cantilevers corresponds to the …

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A Functional Optimization Approach To Stochastic Process Sampling, Ryan Matthew Thurman Apr 2022

A Functional Optimization Approach To Stochastic Process Sampling, Ryan Matthew Thurman

USF Tampa Graduate Theses and Dissertations

The goal of the current research project is the formulation of a method for the estimation and modeling of additive stochastic processes with both linear- and cycle-type trend components as well as a relatively robust noise component in the form of Levy processes. Most of the research in stochastic processes tends to focus on cases where the process is stationary, a condition that cannot be assumed for the model above due to the presence of the cyclical sub-component in the overall additive process. As such, we outline a number of relevant theoretical and applied topics, such as stochastic processes and …

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Discussion On Action Strategies Of China’S Carbon Peak And Carbon Neutrality, Guirui Yu, Tianxiang Hao, Jianxing Zhu Apr 2022

Discussion On Action Strategies Of China’S Carbon Peak And Carbon Neutrality, Guirui Yu, Tianxiang Hao, Jianxing Zhu

Bulletin of Chinese Academy of Sciences (Chinese Version)

China's carbon peak and carbon neutrality action is a huge system engineering with national coverage, country-led and universal participation, long-term sustainable implementation, requiring definite, tenacious, and adaptable action strategies. Here, based on summarizing the current situations of "carbon peak and carbon neutrality", the action strategies, technological approaches, and scientific and technological supports are discussed to achieve the "dual carbon" targets in China. It is suggested that China's "dual carbon" action should insist on "one basic concept", achieve "two macroscopic targets", implement the "three-pronged comprehensive", and "four-way simultaneous" technological paths, and practice the macro layout of "five coordination" in the national …

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Policy Framework And Technology Innovation Policy Of Carbon Peak And Carbon Neutrality, Xianchun Tan, Wen Guo, Jie Fan, Jianxin Guo, Mingyue Wang, An Zen, Liyang Su, Yi Sun Apr 2022

Policy Framework And Technology Innovation Policy Of Carbon Peak And Carbon Neutrality, Xianchun Tan, Wen Guo, Jie Fan, Jianxin Guo, Mingyue Wang, An Zen, Liyang Su, Yi Sun

Bulletin of Chinese Academy of Sciences (Chinese Version)

Building a policy system conducive to peak carbon emissions and carbon neutrality is critical to achieving the dual carbon goals on schedule. This study sorts out and analyzes the 168 low-carbon policy texts since the 11th Five-Year Plan. It finds out the overall situation of China's low-carbon policies, as well as the characteristics of the number, effectiveness, measures of policies, and clarifies the gap in the current low-carbon policies. On this basis, around the phased characteristics of the realization of the dual carbon goals, the future policy framework of peak carbon emissions and carbon neutrality is drawn, including the timetable …

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Analysis Of International Carbon Neutralization Strategic Actions And Technology Layout And Enlightenment Suggestions To China, Jiansheng Qu, Wei Chen, Jingjing Zeng, Yuling Sun, Qin Liao, Kaimo Guo, Aning Qin, Huijuan Pei, Fei Teng, Yanfei Liu, Fang Yue, Li'na Liu, Yun Tang, Lanchun Li Apr 2022

Analysis Of International Carbon Neutralization Strategic Actions And Technology Layout And Enlightenment Suggestions To China, Jiansheng Qu, Wei Chen, Jingjing Zeng, Yuling Sun, Qin Liao, Kaimo Guo, Aning Qin, Huijuan Pei, Fei Teng, Yanfei Liu, Fang Yue, Li'na Liu, Yun Tang, Lanchun Li

Bulletin of Chinese Academy of Sciences (Chinese Version)

Achieving carbon peak and carbon neutrality goals is a major strategic decision made by the Chinese government, which will bring extensive and profound systemic changes for the economy and society. S&T is the core driving force that supports the goal of carbon neutrality. On the basis of the related concepts of carbon neutrality, this study analyzes the strategic actions and the characteristics of technological layout of carbon neutrality in developed countries/regions and international organizations. Major countries have promoted carbon neutrality through legislative regulation, energy strategies, technology roadmaps, carbon markets and other policy actions. They focus on deploying transformative green low-carbon …

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Policy Approaches To Increase Carbon Sequestration Capacity By Optimizing Layouts Of Ecological Construction, Jie Fan, Hongbing Wang, Daojing Zhou, Ning Ma, Baoyin Liu Apr 2022

Policy Approaches To Increase Carbon Sequestration Capacity By Optimizing Layouts Of Ecological Construction, Jie Fan, Hongbing Wang, Daojing Zhou, Ning Ma, Baoyin Liu

Bulletin of Chinese Academy of Sciences (Chinese Version)

Improving carbon sequestration capacity through ecological construction is one of the important ways to achieve the goal of "carbon neutrality" in China. Based on the analysis of the current situation and trend of ecological carbon sequestration in China, this study summarizes the main challenges in the increment of ecosystem carbon sink in China. The current situation and trend, the significant carbon sequestration capacity of forests, the recovery phase of carbon sequestration capacity of grassland, and the carbon sequestration benefits of major ecological projects are also surveyed. Then, the new challenges of China are analyzed, including the backlog of over-mature forests …

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Market Mechanism And Focus Of International Cooperation To Achieve Carbon Neutrality, Lele Zou, Pu Wang, Yi Sun Apr 2022

Market Mechanism And Focus Of International Cooperation To Achieve Carbon Neutrality, Lele Zou, Pu Wang, Yi Sun

Bulletin of Chinese Academy of Sciences (Chinese Version)

The market mechanism is the basis for achieving carbon neutrality. Through the market mechanism, the global cost can be the lowest to achieve carbon neutrality. Therefore, in the process of carbon neutralization, it is necessary to give full play to the decisive role of the market in resource allocation. China has explored and accumulated experience in various market mechanisms for more than 10 years, and has established the carbon market, green certificate market, white certificate market, energy market, etc. At the same time, the power system is also strengthening market-oriented reform. Nevertheless, there are still imperfect systems and conflicts among …

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Carbon Neutrality Policy Measures In Global Major Economies, Jianfang Wang, Liyang Su, Xianchun Tan, Xiaoyi Chen, Chunlei Ge Apr 2022

Carbon Neutrality Policy Measures In Global Major Economies, Jianfang Wang, Liyang Su, Xianchun Tan, Xiaoyi Chen, Chunlei Ge

Bulletin of Chinese Academy of Sciences (Chinese Version)

This study focuses on the strategies, targets and policy measures for carbon neutrality in global major economies. The research shows that due to the different socio-economic and political foundations, the transition strategy towards carbon neutrality in major economies is also varied, which can be divided into four categories:leading strategy, growth strategy, following strategy, and swing strategy. Most of them build carbon neutrality target system with the framework of "target roadmap+targets in key areas", but leading countries usually integrate targets into legislation and thus the objective is legally binding, while others tend to weaken emission reduction targets and focus on the …

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Technological Approaches To Enhance Ecosystem Carbon Sink In China: Nature-Based Solutions, Guirui Yu, Jianxing Zhu, Li Xu, Nianpeng He Apr 2022

Technological Approaches To Enhance Ecosystem Carbon Sink In China: Nature-Based Solutions, Guirui Yu, Jianxing Zhu, Li Xu, Nianpeng He

Bulletin of Chinese Academy of Sciences (Chinese Version)

Carbon peak in 2030 and carbon neutralization in 2060 has been established as one of the important strategic goals of China's economic and social development. During 2010-2020, the capacity of terrestrial ecosystems in China to sequester carbon dioxide (CO2) varied from 1.0 to 1.3 Gt/a, with high uncertainty. To enhance the carbon sink capacity of Chinese terrestrial ecosystems, the combination with land space planning and ecological protection is essential. It is necessary to first stabilize the existing carbon storage in these ecosystems, such as forest, grassland, wetland, coast, and others, and then implement some important ecological protection and ecological restoration …

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Development Path Of Energy Science And Technology Under “Dual Carbon” Goals: Perspective Of Multi-Energy System Integration, Rui Cai, Hanxiong Zhu, Wangjun Li, Yu Xiao, Zhongmin Liu Apr 2022

Development Path Of Energy Science And Technology Under “Dual Carbon” Goals: Perspective Of Multi-Energy System Integration, Rui Cai, Hanxiong Zhu, Wangjun Li, Yu Xiao, Zhongmin Liu

Bulletin of Chinese Academy of Sciences (Chinese Version)

This study first analyzes the driving factors of China's realization of the "dual carbon" goals from the two aspects of necessity and urgency, and proposes that to achieve the "dual carbon" goals, China shall reshape the energy structure and related industrial systems in a scientific and orderly manner, in which technology innovation plays a crucial leading role. Then, based on the long-term research and deveopment in the energy field of the Chinese Academy of Sciences, the scientific and technological development path to lead the realization of the "dual carbon" goals with the concept of "multi-energy system integration" is proposed, and …

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Highly Efficient And Clean Utilization Of Fossil Energy Under Carbon Peak And Neutrality Targets, Qinggang Lyu, Zhen Chai Apr 2022

Highly Efficient And Clean Utilization Of Fossil Energy Under Carbon Peak And Neutrality Targets, Qinggang Lyu, Zhen Chai

Bulletin of Chinese Academy of Sciences (Chinese Version)

Fossil energy utilization faces new challenges under carbon peak and carbon neutrality ("dual carbon" for short) targets. In this study, the present status of fossil energy utilization in China is summarized. Based on the situation of energy resources in China, the idea of highly efficient and clean utilization of fossil energy under dual carbon constraint is proposed. The technical development suggestions are put forward from three aspects including high efficient combustion and conversion of coal, high efficient utilization of oil and gas, and waste treatment of the chemical processing of coal. It aims to provide scientific and technological support for …

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Proposal For Establishing Wide-Area Virtual Power Plant Based On Pv-Dominated Energy And Physical Energy Storage System, Liye Xiao, Jiaofeng Pan Apr 2022

Proposal For Establishing Wide-Area Virtual Power Plant Based On Pv-Dominated Energy And Physical Energy Storage System, Liye Xiao, Jiaofeng Pan

Bulletin of Chinese Academy of Sciences (Chinese Version)

The key issues to achieve the "dual carbon" goals mainly involve three aspects:the structure of energy and power supply, the development of energy storage technology and the construction of new power system. Combined with the specific situation of China, this study analyzes and forecasts the power supply structure dominated by renewable energy; Considering the characteristics and development needs of renewable energy, the viewpoint and idea are put forward to develop physical energy storage, especially underground energy storage engineering, to meet the large-scale energy storage needs of power grid. On this basis, the overall idea is suggested for constructing wide area …

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Thoughts On Regional Path Of Promoting Comprehensive Demonstration Of Low-Carbon Energy Technology Under “Dual Carbon” Goals, Zhu, Yi Wang, Jia Rui, Daquan Cao, Xiaoguang Ren, Jingdong He, Haisheng Chen, Rui Cai, Zhongmin Liu Apr 2022

Thoughts On Regional Path Of Promoting Comprehensive Demonstration Of Low-Carbon Energy Technology Under “Dual Carbon” Goals, Zhu, Yi Wang, Jia Rui, Daquan Cao, Xiaoguang Ren, Jingdong He, Haisheng Chen, Rui Cai, Zhongmin Liu

Bulletin of Chinese Academy of Sciences (Chinese Version)

Promoting the regional demonstration of energy technology for carbon peak and carbon neutrality (referred to as "dual carbon") is an important part of the Chinese Academy of Sciences' action plan to support the "dual carbon" goals. This study discusses the significance of carrying out the comprehensive demonstration of "dual carbon" technology from the two dimensions of "technology integration demonstration" and "typical regional demonstration". Besides, based on the existing research layout in the energy field of the Chinese Academy of Sciences, the idea and four mainlines are proposed for the Chinese Academy of Sciences to promote "multi-energy integration", which are clean …

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Multi-Modality Affective Computing Model Based On Personality And Memory Mechanism, Sijin Zhou, Dicheng Chen, Geng Tu, Dazhi Jiang Apr 2022

Multi-Modality Affective Computing Model Based On Personality And Memory Mechanism, Sijin Zhou, Dicheng Chen, Geng Tu, Dazhi Jiang

Journal of System Simulation

Abstract: With the development of affective computing, the correlation of memory, individuation and emotion is more and more important. Focus on the machine emotion shortcomings in the perception, understanding and expression, an emotion computing model integrating the emotion perception, understanding and expression is proposed. The model is a memory-oriented deep network perception model that accepts multiple modal inputs (visual, auditory, lexical) and applies a fuzzy emotion integration decision to realize the understanding of uncertain emotions. The simulation experiments prove that the model has a good performance in all kinds of multimodal affective computing.

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Simulation On Cold Chain Distribution Path Of Fresh Agricultural Products Under Low-Carbon Constraints, Tao Ning, Tao Gou, Xiangdong Liu Apr 2022

Simulation On Cold Chain Distribution Path Of Fresh Agricultural Products Under Low-Carbon Constraints, Tao Ning, Tao Gou, Xiangdong Liu

Journal of System Simulation

Abstract: The freshness distribution requirements of fresh agricultural products may increase the carbon emissions of the cold chain distribution process. A cold chain distribution scheduling strategy and simulation method for the fresh agricultural products under low-carbon constraints is proposed. Based on the quantitative analysis of the carbon tax mechanism, a mathematical model of minimizing the carbon emissions and minimizing the overall cost of distribution is established. Comprehensively analyzing the conventional factors such as the product delivery volume, delivery time and loading and unloading time in logistics distribution, an improved quantum ant colony algorithm based on adaptive rotation angle …

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Give Full Play To National Strategic S&T Force To Provide Vigorous Support For Carbon Peak And Carbon Neutrality Goals, Jingdong He, Daquan Cao, Xiaonan Duan, Tao Zhao, Qifeng Li, Yu Xiao, Zhongmin Liu, Haisheng Chen, Chibiao Ding Apr 2022

Give Full Play To National Strategic S&T Force To Provide Vigorous Support For Carbon Peak And Carbon Neutrality Goals, Jingdong He, Daquan Cao, Xiaonan Duan, Tao Zhao, Qifeng Li, Yu Xiao, Zhongmin Liu, Haisheng Chen, Chibiao Ding

Bulletin of Chinese Academy of Sciences (Chinese Version)

Scientific and technological innovation plays key supporting and leading roles to achieve "carbon peaking and carbon neutrality" goals (referred to as "dual carbon"). It is necessary to make sustained efforts in the three aspects, namely energy structure adjustment, energy consumption, and carbon sequestration, and build a novel multi-energy-integrated energy production and utilization system based on hydrogen energy, energy storage, and methanol, in which the main lines are clean and efficient utilization of fossil energy, large-scale utilization and complementation of clean energy, low-carbon reconstruction of industrial processes, and intelligent multi-energy integration of building and transportation. In 2022, the Chinese Academy of …

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Carbon Neutral Transformative Technologies For Industrial Process, Suojiang Zhang, Xiangping Zhang, Wei Ge, Chunyan Shi Apr 2022

Carbon Neutral Transformative Technologies For Industrial Process, Suojiang Zhang, Xiangping Zhang, Wei Ge, Chunyan Shi

Bulletin of Chinese Academy of Sciences (Chinese Version)

Focusing on the four major high carbon emission industries of steel, non-ferrous, chemical industry and building materials, through research and analysis, four low carbon strategies, i.e., green hydrogen/green electricity substitution, raw material/product structure adjustment, process flow re-construction and digital intelligence, are proposed. Combining the current status and the trends of technology development in different industries, a number of advanced low-carbon technologies are suggested, key scientific and technological challenges to be solved are condensed, and suggestions and initiatives to accelerate the application of new technologies and industrial transformation and upgrading are proposed, with a view to providing support for low-carbon and …

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Build New Power System To Promote Carbon Neutrality, Li Kong, Wei Pei, Jianye Rao, Yingxin Xu Apr 2022

Build New Power System To Promote Carbon Neutrality, Li Kong, Wei Pei, Jianye Rao, Yingxin Xu

Bulletin of Chinese Academy of Sciences (Chinese Version)

Under the 'carbon peak and carbon neutrality' goal, the supply and demand of China's power system will continue to grow in the next 40 years. Firstly, this study comprehensively analyzes China's power grid system under the goal of carbon neutralization. In the future, wind power and solar power will gradually become the main power supply, which brings new tasks and challenges to the power grid to absorb the renewable energy. On this basis, the general idea and construction principles of building a new generation of power system are expounded. Then, the basic structure and form of the new generation of …

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Research Progress And Development Suggestions Of Energy Storage Technology Under Background Of Carbon Peak And Carbon Neutrality, Qiong Zheng, Lixia Jiang, Yujie Xu, Song Gao, Tao Liu, Chao Qu, Haisheng Chen, Xianfeng Li Apr 2022

Research Progress And Development Suggestions Of Energy Storage Technology Under Background Of Carbon Peak And Carbon Neutrality, Qiong Zheng, Lixia Jiang, Yujie Xu, Song Gao, Tao Liu, Chao Qu, Haisheng Chen, Xianfeng Li

Bulletin of Chinese Academy of Sciences (Chinese Version)

Energy storage is one of the important supporting technologies to achieve the "dual carbon" goals, and it is an important means to stabilize renewable energy fluctuations and reduce the impact of large-scale new energy access on the power grid. At present, the competition of global energy resources is becoming increasingly fierce, and China is also facing significant changes in the adjustment of energy structure. To implement the energy strategy of "four revolutions and one cooperation" in the new era, and to realize the "14th Five-Year Plan" as well as the "Long-range Objectives Through the Year 2035", China needs to build …

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Simulation Optimization On Joint Production And Preventive Maintenance Scheduling For Distributed Job-Shop, Fei Ye, Ziqing Li, Yuanjun Laili Apr 2022

Simulation Optimization On Joint Production And Preventive Maintenance Scheduling For Distributed Job-Shop, Fei Ye, Ziqing Li, Yuanjun Laili

Journal of System Simulation

Abstract: Distributed job-shop production scheduling is the key to high efficient production. Preventive maintenance, an essential means to ensure the safety and reliability of equipment, should be the necessary content of the production decision-making. Aiming at the production delay caused by equipment maintenance, a simulation-corrected optimization method is proposed. The mathematical model and simulation model for the joint production and preventive maintenance scheduling are established. The sequence exchange-based genetic algorithm is combined with the simulation-corrected optimization method to form a fast simulation optimization scheme. Experimental results on typical cases show that the proposed simulation optimization method can improve the solution …

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Mathematical Musings On The External Anatomy Of The Novel Coronavirus. Part 1: The Overall Shape Of The N-Cov, Jyotirmoy Sarkar, Mamunur Rashid Apr 2022

Mathematical Musings On The External Anatomy Of The Novel Coronavirus. Part 1: The Overall Shape Of The N-Cov, Jyotirmoy Sarkar, Mamunur Rashid

Mathematics Faculty Publications

What is the shape of the novel coronavirus which has turned our world upside down? Even though under a microscope it looks dull, unattractive, and even disgusting, creative artists have attributed to it bright colors, made it look pretty, and depicted it as a thing of beauty. What can a mathematician contribute to this effort? We take a purist’s point of view by imposing on it a quasi-symmetry and then deriving some consequences. In an idealistic world, far removed from reality but still obeying the rules of mathematics, anyone can enjoy this ethereal beauty of the mind’s creation, beckoning others …

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X-Ray Crystallographic Analysis Of Quinoline N-Oxide And Isoquinoline N-Oxide With Zinc Halides, Nitrates, Perchlorates., Erin N. Groneck Apr 2022

X-Ray Crystallographic Analysis Of Quinoline N-Oxide And Isoquinoline N-Oxide With Zinc Halides, Nitrates, Perchlorates., Erin N. Groneck

GS4 Student Scholars Symposium

We have worked to analyze the chemistry between aromatic N-oxides, Quinoline N-oxide and Isoquinoline N-oxide, with zinc halides, nitrates, and perchlorates by X-ray crystallography. These structures were formed by reaction of the aromatic N-oxides with an equivalent of the zinc halide, nitrate, or perchlorate. These N-oxides had been chosen due to being the focus of this study. We will present the crystallographic X-ray structures of the synthesized novel complexes of the N-oxides with either a zinc halide, zinc nitrate, and zinc perchlorate.

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Student-Developed Laboratory Activities Using Rolling Object On An Inclined Plane To Improve Student Learning, Qing Shao, Joseph Ametepe Apr 2022

Student-Developed Laboratory Activities Using Rolling Object On An Inclined Plane To Improve Student Learning, Qing Shao, Joseph Ametepe

Georgia Journal of Science

This work presents an alternative method of teaching undergraduate introductory physics laboratory. Students are presented with an experimental scenario “Rolling object on an inclined plane” and guided to develop their own laboratory activities in a studio-style setting. The overall goal of this alternative approach is to shift part of the learning responsibility to students. Through guided self-developed activities, students establish the connections between different physics concepts. Such a shift makes students active participants in the classroom, allows them to explore ideas independently, and discover through doing the exploring. Furthermore, the pedagogy is aimed at (i) motivating and actively engaging students …

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Learning Enriched Features For Fast Image Restoration And Enhancement, Syed Waqas Zamir, Aditya Arora, Salman Khan, Munawar Hayat, Fahad Shahbaz Khan, Ming-Hsuan Yang, Ling Shao Apr 2022

Learning Enriched Features For Fast Image Restoration And Enhancement, Syed Waqas Zamir, Aditya Arora, Salman Khan, Munawar Hayat, Fahad Shahbaz Khan, Ming-Hsuan Yang, Ling Shao

Computer Vision Faculty Publications

Given a degraded input image, image restoration aims to recover the missing high-quality image content. Numerous applications demand effective image restoration, e.g., computational photography, surveillance, autonomous vehicles, and remote sensing. Significant advances in image restoration have been made in recent years, dominated by convolutional neural networks (CNNs). The widely-used CNN-based methods typically operate either on full-resolution or on progressively low-resolution representations. In the former case, spatial details are preserved but the contextual information cannot be precisely encoded. In the latter case, generated outputs are semantically reliable but spatially less accurate. This paper presents a new architecture with a holistic goal …

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