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Simplified Novel Approach For Accurate Employee Churn Categorization Using Mcdm, De-Pareto Principle Approach, And Machine Learning, Faisal Bin Al Abid, Aryati Binti Bakri, Md. Golam Rabiul Alam, Jia Uddin, Shefayatuj Johara Chowdhury Feb 2024

Simplified Novel Approach For Accurate Employee Churn Categorization Using Mcdm, De-Pareto Principle Approach, And Machine Learning, Faisal Bin Al Abid, Aryati Binti Bakri, Md. Golam Rabiul Alam, Jia Uddin, Shefayatuj Johara Chowdhury

Baghdad Science Journal

Churning of employees from organizations is a serious problem. Turnover or churn of employees within an organization needs to be solved since it has negative impact on the organization. Manual detection of employee churn is quite difficult, so machine learning (ML) algorithms have been frequently used for employee churn detection as well as employee categorization according to turnover. Using Machine learning, only one study looks into the categorization of employees up to date. A novel multi-criterion decision-making approach (MCDM) coupled with DE-PARETO principle has been proposed to categorize employees. This is referred to as SNEC scheme. An AHP-TOPSIS DE-PARETO PRINCIPLE …

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Efficient Task Scheduling Approach In Edge-Cloud Continuum Based On Flower Pollination And Improved Shuffled Frog Leaping Algorithm, Nasiru Muhammad Dankolo, Nor Haizan Mohamed Radzi, Noorfa Haszlinna Mustaffa, Mohd Shukor Talib, Zuriahati Mohd Yunos, Danlami Gabi Feb 2024

Efficient Task Scheduling Approach In Edge-Cloud Continuum Based On Flower Pollination And Improved Shuffled Frog Leaping Algorithm, Nasiru Muhammad Dankolo, Nor Haizan Mohamed Radzi, Noorfa Haszlinna Mustaffa, Mohd Shukor Talib, Zuriahati Mohd Yunos, Danlami Gabi

Baghdad Science Journal

The rise of edge-cloud continuum computing is a result of the growing significance of edge computing, which has become a complementary or substitute option for traditional cloud services. The convergence of networking and computers presents a notable challenge due to their distinct historical development. Task scheduling is a major challenge in the context of edge-cloud continuum computing. The selection of the execution location of tasks, is crucial in meeting the quality-of-service (QoS) requirements of applications. An efficient scheduling strategy for distributing workloads among virtual machines in the edge-cloud continuum data center is mandatory to ensure the fulfilment of QoS requirements …

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Does Chinese Investment Into Europe Facilitate Strategic Asset Growth In The Chinese Parent Company? The Role Of Entry Mode, John Anderson, Dylan Sutherland, Sean Severe Feb 2024

Does Chinese Investment Into Europe Facilitate Strategic Asset Growth In The Chinese Parent Company? The Role Of Entry Mode, John Anderson, Dylan Sutherland, Sean Severe

Faculty Publications

Strategic asset seeking foreign direct investment has undergone tremendous growth over the past decade. This paper first attempts to evaluate the location choice of such investments in Europe. We find that Chinese companies target strategic assets in Europe. The paper then moves to understand the efficacy of these investments in terms of the creation of strategic assets in the Chinese parent company. Our results show the intangible assets of Chinese domestic parent firms significantly increase in the wake of their investments. For greenfield investments, there is a longer time-lag in creation of intangible strategic assets than for acquisitions. However, greenfield …

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Neutrosophic Insights Into Military Interventions: Assessing Legitimacy And Consequences In International Law, Salame Ortiz Mónica Alexandra, Jiménez Martínez Roberto Carlos, Piñas Piñas Luis Fernando Feb 2024

Neutrosophic Insights Into Military Interventions: Assessing Legitimacy And Consequences In International Law, Salame Ortiz Mónica Alexandra, Jiménez Martínez Roberto Carlos, Piñas Piñas Luis Fernando

Neutrosophic Systems with Applications

This scientific paper analyzes the legitimacy of military interventions within the framework of international law and their potential consequences. It highlights the need to support these interventions with robust legal and moral reasoning due to their complexity and controversy in the international community. The interpretation of legal and ethical principles can be subjective and lead to disagreements among states and international actors. The consequences of military interventions are explored, ranging from loss of life and infrastructure destruction to population displacement, political instability, and humanitarian crises. Legality and proportionality in interventions are essential to ensuring their legitimacy, and the potential consequences …

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Mechanisms Of Electrical Substrate Reprogramming After Cardiac Radiotherapy, David Meng Zhang Feb 2024

Mechanisms Of Electrical Substrate Reprogramming After Cardiac Radiotherapy, David Meng Zhang

Arts & Sciences Graduate Student Theses and Dissertations

Ventricular tachycardia (VT) is frequently associated with morbidity in patients with heart disease and can lead to sudden cardiac death, which accounts for over 350,000 deaths per year and nearly half of all cardiovascular-related deaths in the United States. Despite its status as a major public health concern, arrhythmia management strategies are severely limited in safety and efficacy. Standards-of-care include defibrillators, anti-arrhythmic drugs, and/or ablations. Implantable cardioverter defibrillators improve survival in at-risk populations but severely reduce quality-of-life and increase risks of further-declining ventricular function. Pharmacologic interventions are limited in efficacy and have dozens of off-target effects which are major sources …

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Observational Features Of Charge Distribution In Earth's Inner Magnetosphere, Lai Gao, Chao Shen, Yufei Zhou, Yong Ji, Zuyin Pu, George Parks, Christopher T. Russell, Gang Zeng, Lan Ma, Roy B. Torbert, Yanyan Yang, James L. Burch Feb 2024

Observational Features Of Charge Distribution In Earth's Inner Magnetosphere, Lai Gao, Chao Shen, Yufei Zhou, Yong Ji, Zuyin Pu, George Parks, Christopher T. Russell, Gang Zeng, Lan Ma, Roy B. Torbert, Yanyan Yang, James L. Burch

Faculty Publications

Understanding the motion of charged particles in the electromagnetic field in the inner magnetosphere is essential for space science and space weather. Charge accumulation can occur due to the dipole magnetic and convective electric fields in this region. However, until the recent Magnetospheric Multiscale (MMS) mission, there were few means to detect charge distribution in situ. We report unambiguous in situ observation of the spatial distribution of the excess charge density in the inner magnetosphere by the MMS mission. We find that a positive (negative) charge accumulates in the dusk (dawn) side inner magnetospheres, which is contrary to the long …

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Neutrosophic Insights Into Military Interventions: Assessing Legitimacy And Consequences In International Law, Salame Ortiz Mónica Alexandra, Jiménez Martínez Roberto Carlos, Piñas Piñas Luis Fernando Feb 2024

Neutrosophic Insights Into Military Interventions: Assessing Legitimacy And Consequences In International Law, Salame Ortiz Mónica Alexandra, Jiménez Martínez Roberto Carlos, Piñas Piñas Luis Fernando

Neutrosophic Systems with Applications

This scientific paper analyzes the legitimacy of military interventions within the framework of international law and their potential consequences. It highlights the need to support these interventions with robust legal and moral reasoning due to their complexity and controversy in the international community. The interpretation of legal and ethical principles can be subjective and lead to disagreements among states and international actors. The consequences of military interventions are explored, ranging from loss of life and infrastructure destruction to population displacement, political instability, and humanitarian crises. Legality and proportionality in interventions are essential to ensuring their legitimacy, and the potential consequences …

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Observational Features Of Charge Distribution In Earth's Inner Magnetosphere, Lai Gao, Chao Shen, Yufei Zhou, Yong Ji, Zuyin Pu, George Parks, Christopher T. Russell, Gang Zeng, Lan Ma, Roy B. Torbert, Yanyan Yang, James L. Burch Feb 2024

Observational Features Of Charge Distribution In Earth's Inner Magnetosphere, Lai Gao, Chao Shen, Yufei Zhou, Yong Ji, Zuyin Pu, George Parks, Christopher T. Russell, Gang Zeng, Lan Ma, Roy B. Torbert, Yanyan Yang, James L. Burch

Faculty Publications

Understanding the motion of charged particles in the electromagnetic field in the inner magnetosphere is essential for space science and space weather. Charge accumulation can occur due to the dipole magnetic and convective electric fields in this region. However, until the recent Magnetospheric Multiscale (MMS) mission, there were few means to detect charge distribution in situ. We report unambiguous in situ observation of the spatial distribution of the excess charge density in the inner magnetosphere by the MMS mission. We find that a positive (negative) charge accumulates in the dusk (dawn) side inner magnetospheres, which is contrary to the long …

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Soil Nitrification Inhibition With Plantain (Plantago Lanceolata), M. E. Peterson, P. M. Fraser, C. R. Anderson, N. I. Joyce, H. G. Judson Feb 2024

Soil Nitrification Inhibition With Plantain (Plantago Lanceolata), M. E. Peterson, P. M. Fraser, C. R. Anderson, N. I. Joyce, H. G. Judson

IGC Proceedings (1977-2023)

One strategy to reduce nitrogen losses from intensively grazed forage systems is to slow the first stage of soil nitrification, specifically inhibiting the microbial oxidation of ammonium to nitrite. Plantain (Plantago lanceolata) leaves and roots are known to contain several bioactive compounds (e.g., aucubin, catalpol and verbascoside) that may contribute to this inhibition. Recent laboratory studies indicate that this inhibition occurs via consumption by grazing animals of precursor bioactive compounds in aboveground biomass and their subsequent excretion as secondary metabolites in urine and/or via active exudation from the roots. Different cultivars of plantain have been shown to impart …

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Forage Genomics Accelerate The Germplasm Resource Innovation, Fan Wu, Qi Yan, Pan Xu, Zhen Duan, Jiyu Zhang Feb 2024

Forage Genomics Accelerate The Germplasm Resource Innovation, Fan Wu, Qi Yan, Pan Xu, Zhen Duan, Jiyu Zhang

IGC Proceedings (1977-2023)

To achieve sustainability and food security we need expand the germplasm base and access novel genetic diversity to accelerate breeding. For developing new forage cultivars, the availability of a high-quality genome facilitates accurate characterization of new germplasm, and an understanding of the genetics underlying important traits. Here, we sequenced and assembled three high-quality chromosome-level forage genomes. The contig-level assembly of Cleistogenes songorica (2n = 4x = 40) comprised 540.12 Mb of the genome, with a contig N50 of 21.28 Mb. Complete assemblies of all telomeres, and of ten chromosomes were derived. The chromosome-scale genome size of elephant grass (2n = …

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Theory And Application Of No-Till Reseeding Technology In Degraded Grasslands In China, Jingying Jing, Hongyan Ma, Yingjun Zhang Feb 2024

Theory And Application Of No-Till Reseeding Technology In Degraded Grasslands In China, Jingying Jing, Hongyan Ma, Yingjun Zhang

IGC Proceedings (1977-2023)

Grasslands occupy nearly 400 million hectares in China, accounting for about 40.7% of the total land area, provide multiple ecological and economic benefits. However, due to over-grazing and over-cultivation, more than 90% grasslands in China are threatened by degradation that has caused significant negative impact on biodiversity and ecosystem functioning, such as biodiversity losses, decreased productivity, increased soil erosion etc. Thus, restoration of degraded grassland is urgent for sustainable grassland management in China. No-till reseeding has been found to be an effective way for grassland vegetation regeneration with improved productivity and increased plant diversity via reseeding suitable species with minimum …

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Rangeland-Centered Agroecosystems In Indian Central Himalayas: Operationalizing Ecological Sustainability In Mountain Agriculture, Vir Singh Feb 2024

Rangeland-Centered Agroecosystems In Indian Central Himalayas: Operationalizing Ecological Sustainability In Mountain Agriculture, Vir Singh

IGC Proceedings (1977-2023)

Himalayan Mountains are home to unique agroecosystems harboring unique inter- and intra-species diversity in uncultivated and cultivated lands. The uncultivated lands are largely the rangelands which are ecologically more stable ecosystems than the cultivated lands which are ecologically prone areas. Rangelands, cultivated areas, and livestock in mountain agriculture are in organic linkages with each other, woven into a complex unitary whole, functionally oriented to produce foods and other life-supporting products – such as feed, fiber, fuel, fertilizers, etc. – and provide vital ecological functions. Rangelands in fragile Himalayan mountains serve as a key component of agriculture and the biodiversity conserved …

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Mentoring Graduate Students For Academic Careers In Grassland Science, L. E. Sollenberger Feb 2024

Mentoring Graduate Students For Academic Careers In Grassland Science, L. E. Sollenberger

IGC Proceedings (1977-2023)

Effective mentorship enhances student productivity and career achievements, yet faculty generally do not receive mentorship training, nor does mentorship receive focused attention, evaluation, and recognition. The objectives of this paper are to 1) define mentorship and identify roles of a mentor, 2) highlight qualities and outcomes of effective mentoring, and 3) elaborate best mentoring practices, metrics for assessing mentoring, and challenges for mentoring the next generation of grassland scientists. Mentoring is a professional alliance where individuals work together to support the personal and professional growth, development, and success of the relational partners. Mentors should be altruistic discipline experts, have substantial …

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National Forage Week, B. Stefancik, K. Mullenix Feb 2024

National Forage Week, B. Stefancik, K. Mullenix

IGC Proceedings (1977-2023)

Social media can be a powerful tool for producers, researchers, and grassland professionals. Social media enables us to connect with a wide audience of producers, Extension personnel, colleagues, industry partners, and even the non-agriculture related community. This presentation in the thematic session on “Understanding the role of social media and digital resources in forage education and promotion” will focus on the impact of National Forage Week. National Forage Week is national campaign initiated by the American Forage and Grassland Council to promote forages and their contributions to society.

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Maize-Alfalfa Intercropping Promote Ecosystem Services Than Fertilized Single Crops, D. X. Tao, Y. Z. Gao Feb 2024

Maize-Alfalfa Intercropping Promote Ecosystem Services Than Fertilized Single Crops, D. X. Tao, Y. Z. Gao

IGC Proceedings (1977-2023)

Phosphorus is a non-renewable source of fertilization, which will challenge the future of food production and cropland sustainability worldwide. Crop diversity is known to promote food production, yet its capacity to alleviate the dependence of multiple ecosystem services on non-renewable fertilization remains virtually unknown. Here, we conducted a field experiment to quantify the contribution of maize-alfalfa intercropping to support multiple ecosystem services under contrasting levels of phosphorus fertilization. We showed that unfertilized intercropping systems can support larger levels of multiple ecosystem services such as soil microbial habitat, plant-soil mutualism, nutrient cycling, and soil carbon storage compared with phosphorus-fertilized single crops. …

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Identification Of Hyperspectral Characteristics Of The Main Plants In Seriphidium Transiliense Desert Grassland, Wenhao Liu, Wanqiang Han, Guili Jin, Ying Li, Ke Gong, Jian Ma, Zhibiao Liu, Jiazin Li, Mengtian Chen Feb 2024

Identification Of Hyperspectral Characteristics Of The Main Plants In Seriphidium Transiliense Desert Grassland, Wenhao Liu, Wanqiang Han, Guili Jin, Ying Li, Ke Gong, Jian Ma, Zhibiao Liu, Jiazin Li, Mengtian Chen

IGC Proceedings (1977-2023)

Ground hyperspectral images of sericite–Artemisia desert grassland in different seasons were obtained by a soc710 VP imaging spectrometer. Analysis of variance was used to extract the main species Seriphidium transiliense, Ceratocarpus arenarius, and Petrosimonia sibirica and the spectral characteristic parameters and vegetation indices of bare land in different seasons. On this basis, Fisher discriminant analysis was used to divide the samples into a training set and test set according to a ratio of 7:3. The spectral characteristic parameters and vegetation indices were used to identify the three main plants and bare land. Results showed that under Fisher discriminant analysis, …

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A Transdisciplinary Approach To Landscape Transformation Towards Perennial, Diverse, Circular Systems: Why And How, V. Picasso, C. Williams Feb 2024

A Transdisciplinary Approach To Landscape Transformation Towards Perennial, Diverse, Circular Systems: Why And How, V. Picasso, C. Williams

IGC Proceedings (1977-2023)

Prevailing agricultural systems in the U.S. are dominated by intensification through annual crop monocultures and high amounts of external inputs. Increased yields per unit of land have resulted but many undesirable environmental, ecological, and socioeconomic outcomes have co-occurred. Lack of resilience within intensified agricultural systems is a factor in these outcomes. Redesign of agricultural systems and changes in federal policy are needed to better support resilience in agriculture. Redesign for greater resilience must encourage adoption of agricultural systems that are diverse, perennial, circular, and include forages. We developed a transdisciplinary framework within a project orientation with a focus on crops …

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Using Vocabulary To Support Conceptual Understanding In Mathematics, Janel Smith Feb 2024

Using Vocabulary To Support Conceptual Understanding In Mathematics, Janel Smith

Empowering Educators Conference

Conceptual understanding is a foundation of mathematical understanding in order to solve problems and convey mathematical reasoning. The foundation of mathematics learning is built upon the language of mathematics - including numbers, symbols, and vocabulary. This session is appropriate for any grade level in grades k through 12.

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Improving The Practical Skills Of Stem Students At A Historically Black College And University (Hbcu), Yasser Ismail, Phyllis Okwan, Fred Lacy Feb 2024

Improving The Practical Skills Of Stem Students At A Historically Black College And University (Hbcu), Yasser Ismail, Phyllis Okwan, Fred Lacy

Faculty Publications

Improving the practical skills of Science, Technology, Engineering and Mathematics (STEM) students at a historically black college and university (HBCU) was done by implementing a transformative teaching model. The model was implemented on undergraduate students of different educational levels in the Electrical Engineering (EE) Department at HBCU. The model was also extended to carefully chosen high and middle schools. These middle and high school students serve as a pipeline to the university, with a particular emphasis on fostering growth within the EE Department. The model aligns well with the core mission of the EE Department, aiming to enhance the theoretical …

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Brain-Inspired Continual Learning: Robust Feature Distillation And Re-Consolidation For Class Incremental Learning, Hikmat Khan, Nidhal Carla Bouaynaya, Ghulam Rasool Feb 2024

Brain-Inspired Continual Learning: Robust Feature Distillation And Re-Consolidation For Class Incremental Learning, Hikmat Khan, Nidhal Carla Bouaynaya, Ghulam Rasool

Henry M. Rowan College of Engineering Departmental Research

Artificial intelligence and neuroscience have a long and intertwined history. Advancements in neuroscience research have significantly influenced the development of artificial intelligence systems that have the potential to retain knowledge akin to humans. Building upon foundational insights from neuroscience and existing research in adversarial and continual learning fields, we introduce a novel framework that comprises two key concepts: feature distillation and re-consolidation. The framework distills continual learning (CL) robust features and rehearses them while learning the next task, aiming to replicate the mammalian brain's process of consolidating memories through rehearsing the distilled version of the waking experiences. Furthermore, the proposed …

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Extravaganza 2024 Program, Multicultural Student Union Feb 2024

Extravaganza 2024 Program, Multicultural Student Union

MSU Gallery

No abstract provided.

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Absorbance Enhancement Of A Treated Tanzanian Kaolin For Removal Of Synthetic Dyes From Water, Samwel Paul Mziray Feb 2024

Absorbance Enhancement Of A Treated Tanzanian Kaolin For Removal Of Synthetic Dyes From Water, Samwel Paul Mziray

Tanzania Journal of Engineering and Technology (TJET)

The absorbance efficiency of local kaolin clay from Tanzania (Pugu kaolin) has been enhanced to improve its utilization in removal of textile dyes from water. The clay was acid-activated using H2SO4, after calcination at 750oC. Characterization by XRF, XRD, ATR-FTIR and Porosimeter showed kaolinite [Al2Si2O5(OH)4], silica (SiO2) and microcline [KAlSi3O8] as the main phases. Upon acid treatment, silica increased from 44.18% to 58.81% due to the appearance of tridymite, and alumina decreased from 26.70% to 12.74% due to disappearance of the kaolinite. Surface area increased from 15.36 to 149.61 m2/g due to removal of acid-soluble impurities. The chemical composition showed …

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Evaluation Of Environmental Management System For Small And Medium Enterprises In Dar Es Salaam, Tanzania, Juma M. Matindana Feb 2024

Evaluation Of Environmental Management System For Small And Medium Enterprises In Dar Es Salaam, Tanzania, Juma M. Matindana

Tanzania Journal of Engineering and Technology (TJET)

A system that manages environmental issues of Small and Medium Enterprises (SMEs) from the time of acquisition of raw materials up to disposal of the product is not well clear, especially in Tanzania. Most of the studies have been conducted in the field of environment management but few of them address the evaluation of the management of SMEs activities with respect to the environment. Although the nature of activities of SMEs has little noticeable environmental implications at the individual level but the impact is large due to diversification and labour intensity of these SMEs. SMEs employ about 20% of the …

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Comprehensive Survey On Applications Of Internet Of Things, Machine Learning And Artificial Intelligence In Precision Agriculture, Paul Stone Stone Brown Macheso S.B. Feb 2024

Comprehensive Survey On Applications Of Internet Of Things, Machine Learning And Artificial Intelligence In Precision Agriculture, Paul Stone Stone Brown Macheso S.B.

Tanzania Journal of Engineering and Technology (TJET)

A comprehensive, multidisciplinary analysis of the latest developments in digital agriculture is conducted with the use of artificial intelligence (AI), machine learning (ML), and the Internet of Things. By automation and the use of modern, scalable technology solutions that reduce risks, support sustainability, and give farmers predictive advice, traditional agricultural processes are being updated and improved to maximize production. In this paper, the applications of AI, IoT, and ML in agricultural production systems are discussed in detail. The applications that have been explored can be broadly categorized into three areas: soil management, livestock management, and crop management. Weed detection, disease …

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A Two-Stage Based Life Cycle And Principal Component Analysis For Decision Support Of Potential Municipal Solid Wastes Management Scenarios, Case Study Dar Es Salaam, Tanzania, Edwin Richard Ndibalema Dr Feb 2024

A Two-Stage Based Life Cycle And Principal Component Analysis For Decision Support Of Potential Municipal Solid Wastes Management Scenarios, Case Study Dar Es Salaam, Tanzania, Edwin Richard Ndibalema Dr

Tanzania Journal of Engineering and Technology (TJET)

In most of the urban areas of Tanzania, poor and inadequate solid waste management is a growing environmental and public health concern. Despite an array of solid waste management options, choosing an appropriate one remains a challenge. This study applied a novel two-stage-based approach to assess the environmental impacts and sustainability performance of the 27 scenarios for municipal solid wastes (MSW) management of Dar es Salaam City, Tanzania. In the first stage, the study utilized a life cycle analysis (LCA) to quantify the environmental impacts of MSW scenarios. In the second stage, the study used the principal component analysis (PCA) …

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An Overview Of Maternity Healthcare Monitoring In Developing Nations, Godphrey Kyambille Feb 2024

An Overview Of Maternity Healthcare Monitoring In Developing Nations, Godphrey Kyambille

Tanzania Journal of Engineering and Technology (TJET)

A healthcare monitoring arrangement is essential for frequently monitoring a patient's health status. Specifically, maternal healthcare systems for tracking are utilized to evaluate the clinical status and monitor any abnormal condition changes during all three trimesters. This paper's objective is to conduct an extensive literature review and acknowledge earlier initiatives and studies conducted previously in maternal health care monitoring. This review focuses on accumulating information from earlier work and presents a general overview of previous studies concerning maternal health care monitoring (MHCM). The paper focuses on the maternal healthcare systems in developing countries accessed by pregnant women during the antenatal …

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Augmented Finite Control Set Mpc Design Technique For Wide Speed Range Control Of Permanent Magnet Synchronous Motor Drives, Francis Mwasilu Feb 2024

Augmented Finite Control Set Mpc Design Technique For Wide Speed Range Control Of Permanent Magnet Synchronous Motor Drives, Francis Mwasilu

Tanzania Journal of Engineering and Technology (TJET)

The effective motion control task is highly influencing the final drive performance in wide-range motor drives applications such as electric vehicles (EVs), washing machines, compressors, elevators and lathe machines. Recently, permanent magnet synchronous motor (PMSM) drive has been widely employed in these applications to achieve desired performances such as high efficiency, high torque requirements with minimum size “occupancy”. The PMSM drive features combining with these modern drive applications are highly nonlinear and the desired operation requirements demand high-performance control schemes with fast system response and robustness features. Linear control schemes are usually implemented to drive the PMSM that entail trade …

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Hadamard Matrices Of Orders 60 And 64 With Automorphisms Of Orders 29 And 31, Makoto Araya, Masaaki Harada, Vladimir Tonchev Feb 2024

Hadamard Matrices Of Orders 60 And 64 With Automorphisms Of Orders 29 And 31, Makoto Araya, Masaaki Harada, Vladimir Tonchev

Michigan Tech Publications

A classification of Hadamard matrices of order 2p + 2 with an automorphism of order p is given for p = 29 and 31. The ternary self-dual codes spanned by the newly found Hadamard matrices of order 60 with an automorphism of order 29 are computed, as well as the binary doubly even self-dual codes of length 120 with generator matrices defined by related Hadamard designs. Several new ternary near-extremal self-dual codes, as well as binary near-extremal doubly even self-dual codes with previously unknown weight enumerators are found.

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Log-Linear Dynamic Inversion Control With Provable Safety Guarantees In Lie Groups, Li-Yu Lin, James Goppert, Inseok Hwang Feb 2024

Log-Linear Dynamic Inversion Control With Provable Safety Guarantees In Lie Groups, Li-Yu Lin, James Goppert, Inseok Hwang

School of Aeronautics and Astronautics Faculty Publications

In this article, we use the derivative of the exponential map to derive the exact evolution of the logarithm of the tracking error for mixed-invariant systems, a class of systems capable of describing rigid body tracking problems in Lie groups. In addition, we design a log-linear dynamic inversion-based control law to remove the nonlinearities due to spatial curvature and enhance the robustness of the controller. We apply linear matrix inequalities to bound the tracking error given a bounded disturbance amplified by the distortion matrix and leverage the tracking error bound to create flow pipes. To demonstrate the usefulness of our …

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Evaluation Of Enamel Volume Loss After Exposure To Energy Drinks, Karen A. Schulze, Noëlle M. Santucci, Bina Surti, Stefan Habelitz, Mouchumi Bhattacharyya, Warden Noble Feb 2024

Evaluation Of Enamel Volume Loss After Exposure To Energy Drinks, Karen A. Schulze, Noëlle M. Santucci, Bina Surti, Stefan Habelitz, Mouchumi Bhattacharyya, Warden Noble

Pacific Faculty Work

Objectives: This study was conducted to determine the erosive potential of various commercial energy drinks (EDs), sports drinks (SDs), and sugar sweetened beverages (SSBs) and to correlate quantitative changes in tooth enamel volume loss based on the pH and titratable acidity of the drinks. Methods: A flat plane on the facial surface of 36 human incisor teeth was created and embedded in sample holders using resin. After pre-scanning with a profilometer (Proscan 2000, Scantron, Ind Products Ltd., Taunton, UK), the six samples per group were immersed for 4 h into either Monster Energy™ (ED), Rockstar™ (ED), Red Bull™ (ED), or …

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