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2020

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Damage Sensing And Mechanical Properties Of A Laminate Composite Material Containing Mwcnts During Low-Velocity Impact, M Al-Bahrani, Mrh Alhakeem, A Cree Dec 2020

Damage Sensing And Mechanical Properties Of A Laminate Composite Material Containing Mwcnts During Low-Velocity Impact, M Al-Bahrani, Mrh Alhakeem, A Cree

School of Engineering, Computing and Mathematics

In this work, we present a new criterion, unlike other attempts, to evaluate and quantify the degree of damage of composite material when it subjected to a sudden impact load. Our criterion exploits the high intrinsic electrical conductivity property of the Multi-walled carbon nanotubes (MWCNTs) after dispersing different concentrations of them (0, 0.5, 1.0, 1.5 and 2.0 %) in the epoxy matrix of a glass fibre composite. Following this goal, the low-velocity impact and flexural after impact (FAI) tests on the MWCNTs-glass epoxy (i.e. MWCNTs-GF) nanocomposite were evaluated. At the same time, the changes in its electrical resistance were measured. …

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Spectral Absorption Coefficient Of Additive Manufacturing Materials, Nicholas J. Wallace, Matthew R. Jones, Nathan B. Crane Dec 2020

Spectral Absorption Coefficient Of Additive Manufacturing Materials, Nicholas J. Wallace, Matthew R. Jones, Nathan B. Crane

Faculty Publications

Active thermography techniques are of interest for quality assurance of additive manufacturing processes. However, accurate measurements of thermophysical properties of materials are required to successfully implement active thermography. In particular, the spectral absorption coefficient of materials commonly used in additive manufacturing must be known to accurately predict the spatial distribution of thermal energy generated from absorption of power emitted by a laser or pulsed flash lamp. Accurate measurements of these optical properties are also needed to develop greater understanding of additive manufacturing processes that rely on radiative heat transfer to fuse powders. This paper presents spectral absorption coefficient measurements and …

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Cf⁺ Excitation In The Interstellar Medium, Benjamin Desrousseaux, François Lique, Javier R. Goicoechea, Ernesto Quintas-Sánchez, Richard Dawes Dec 2020

Cf⁺ Excitation In The Interstellar Medium, Benjamin Desrousseaux, François Lique, Javier R. Goicoechea, Ernesto Quintas-Sánchez, Richard Dawes

Chemistry Faculty Research & Creative Works

The detection of CF+ in interstellar clouds potentially allows astronomers to infer the elemental fluorine abundance and the ionization fraction in ultraviolet-illuminated molecular gas. Because local thermodynamic equilibrium (LTE) conditions are hardly fulfilled in the interstellar medium (ISM), the accurate determination of the CF+ abundance requires one to model its non-LTE excitation via both radiative and collisional processes. Here, we report quantum calculations of rate coefficients for the rotational excitation of CF+ in collisions with para- and ortho-H2 (for temperatures up to 150 K). As an application, we present non-LTE excitation models that reveal population inversion …

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Estimating Posterior Quantity Of Interest Expectations In A Multilevel Scalable Framework, Hillary R. Fairbanks, Sarah Osborn, Panayot S. Vassilevski Dec 2020

Estimating Posterior Quantity Of Interest Expectations In A Multilevel Scalable Framework, Hillary R. Fairbanks, Sarah Osborn, Panayot S. Vassilevski

Mathematics and Statistics Faculty Publications and Presentations

Scalable approaches for uncertainty quantification are necessary for characterizing prediction confidence in large‐scale subsurface flow simulations with uncertain permeability. To this end we explore a multilevel Monte Carlo approach for estimating posterior moments of a particular quantity of interest, where we employ an element‐agglomerated algebraic multigrid (AMG) technique to generate the hierarchy of coarse spaces with guaranteed approximation properties for both the generation of spatially correlated random fields and the forward simulation of Darcy's law to model subsurface flow. In both these components (sampling and forward solves), we exploit solvers that rely on state‐of‐the‐art scalable AMG. To showcase the applicability …

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The Influence Of Breed And Maternal Education On Goat Kids' Intake Of A Tannin‐Rich Shrub, T. A. Glasser, S. Y. Landau, Avi Perevolotsky, H. Muklada, Eugene D. Ungar Dec 2020

The Influence Of Breed And Maternal Education On Goat Kids' Intake Of A Tannin‐Rich Shrub, T. A. Glasser, S. Y. Landau, Avi Perevolotsky, H. Muklada, Eugene D. Ungar

IGC Proceedings (1977-2023)

No abstract provided.

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Effect Of The Pasture, In Different Seasons, And Of The Ripening Time On The Caciocavallo Palermitano Cheese, C. Giosuè, M. Alabiso, M. L. Alicata, V. Ilardi, D. Giambalvo, G. Maniaci Dec 2020

Effect Of The Pasture, In Different Seasons, And Of The Ripening Time On The Caciocavallo Palermitano Cheese, C. Giosuè, M. Alabiso, M. L. Alicata, V. Ilardi, D. Giambalvo, G. Maniaci

IGC Proceedings (1977-2023)

No abstract provided.

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Anthelmintic Property Of Fresh Cassava (Manihot Esculenta) Leaves Incorporated In The Diet Of West African Dwarf Goats, E. Tedonkeng Pamo, J. Awah-Ndukum, B. Boukila, F. Tendonkeng, F. Matumuini Ndzanie Essie Dec 2020

Anthelmintic Property Of Fresh Cassava (Manihot Esculenta) Leaves Incorporated In The Diet Of West African Dwarf Goats, E. Tedonkeng Pamo, J. Awah-Ndukum, B. Boukila, F. Tendonkeng, F. Matumuini Ndzanie Essie

IGC Proceedings (1977-2023)

No abstract provided.

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Acaricidal Activity Of Essential Oils From Leaves Of Chromolaena Odorata (L.) King & Robins., Eucalyptus Saligna Smith. & Chenopodium Ambrosioides On Ticks (Rhipicepha Luslunulatus Neumann, 1907) Of West African Dwarf Goats (Wadg) In Cameroon, E. Tedonkeng Pamo, B. Boukila, J. Awah-Ndukum, F. Tendonkeng Dec 2020

Acaricidal Activity Of Essential Oils From Leaves Of Chromolaena Odorata (L.) King & Robins., Eucalyptus Saligna Smith. & Chenopodium Ambrosioides On Ticks (Rhipicepha Luslunulatus Neumann, 1907) Of West African Dwarf Goats (Wadg) In Cameroon, E. Tedonkeng Pamo, B. Boukila, J. Awah-Ndukum, F. Tendonkeng

IGC Proceedings (1977-2023)

No abstract provided.

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Volume 9, Issue 1, Spring/Summer 2020, Stacy Creel, Ph.D., Teresa S. Welsh Ph.D. Dec 2020

Volume 9, Issue 1, Spring/Summer 2020, Stacy Creel, Ph.D., Teresa S. Welsh Ph.D.

SLIS Connecting

SLIS Connecting refereed open-access e-journal, Volume 9, Issue 1 (Spring/Summer 2020)

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Spotlights: Faculty, Alumna, And Courses, Stacy Creel, Ph.D. Dec 2020

Spotlights: Faculty, Alumna, And Courses, Stacy Creel, Ph.D.

SLIS Connecting

Spotlighting SLIS Faculty Dr. Jeff Hirschy, SLIS alum Michelle Finley, and asynchronous elective courses LIS 492 (H002)/LIS 692: Library Marketing & PR and LIS 691: LIS Research - Genealogy Research.

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Measuring And Assessing Research Productivity Of Physics Scientist Dr R. G. Sonkawade, Mallikarjun Kappi, Balabhim Sankrappa Biradar Professor, Chaman Sab M Dr Dec 2020

Measuring And Assessing Research Productivity Of Physics Scientist Dr R. G. Sonkawade, Mallikarjun Kappi, Balabhim Sankrappa Biradar Professor, Chaman Sab M Dr

Library Philosophy and Practice (e-journal)

Dr R. G. Sonkawade is an Indian professor, Department of Physics Shivaji University, Kolhapur and Advisor cum OSD to Minister, Higher and Technical Education, Govt. of Maharashtra. Former dean, Medical Physicist and Scientist, the authors studied characteristic features, pattern and citation impact of the well-known Indian scientist and professor’s scientific research works. At his 20 years of research publishing career, He had 191 publications during 1998 – 2019 in various domains and present study was analysed 90 research publications based on SCOPUS database. The study categorizes and presents the data according to year-wise contribution, authorship pattern, collaborators & degree of …

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Appropriate Stocking Rate Of Yak On Alpine Pastures In The Three Rivers Headwater Region Of The Qinghai‐Tibetan Plateau, M. Dong, X. Q. Zhao, Y. S. Ma, Julia A. Klein, J. J. Shi, Y. L. Wang, L. Sheng, S. H. Yang, X. D. Sun Dec 2020

Appropriate Stocking Rate Of Yak On Alpine Pastures In The Three Rivers Headwater Region Of The Qinghai‐Tibetan Plateau, M. Dong, X. Q. Zhao, Y. S. Ma, Julia A. Klein, J. J. Shi, Y. L. Wang, L. Sheng, S. H. Yang, X. D. Sun

IGC Proceedings (1977-2023)

No abstract provided.

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Effects Of Herbal Medicines On Proliferation Of Cow Mammary Epithelial Cells In Vitro, Yueyun Ding, Hongduo Bao, Fang Jiang, Lili Zhang, Tian Wang Dec 2020

Effects Of Herbal Medicines On Proliferation Of Cow Mammary Epithelial Cells In Vitro, Yueyun Ding, Hongduo Bao, Fang Jiang, Lili Zhang, Tian Wang

IGC Proceedings (1977-2023)

No abstract provided.

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Astragalus Membranaceus, Seed Of Cowheb Alters Milk Protein Yields And Lactoferrin, Casein Gene Expression In Cow Mammary Epithelial Cells, Yueyun Ding, Lili Zhang, Hongduo Bao, Tian Wang Dec 2020

Astragalus Membranaceus, Seed Of Cowheb Alters Milk Protein Yields And Lactoferrin, Casein Gene Expression In Cow Mammary Epithelial Cells, Yueyun Ding, Lili Zhang, Hongduo Bao, Tian Wang

IGC Proceedings (1977-2023)

No abstract provided.

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Sheep On The Tibetan Plateau Flock Structure And Breeding Strategies, Luming Ding, Ruijun Long, Xusheng Guo, Wolfgang Bayer Dec 2020

Sheep On The Tibetan Plateau Flock Structure And Breeding Strategies, Luming Ding, Ruijun Long, Xusheng Guo, Wolfgang Bayer

IGC Proceedings (1977-2023)

No abstract provided.

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Global Ocean Change Ocg 5xx, Joanna Burkhardt Dec 2020

Global Ocean Change Ocg 5xx, Joanna Burkhardt

Library Impact Statements

No abstract provided.

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Bacteria-Mediated Synthesis Of Cobalt(Ii,Iii) Oxide Nanostructures, Ryan Loughran Dec 2020

Bacteria-Mediated Synthesis Of Cobalt(Ii,Iii) Oxide Nanostructures, Ryan Loughran

Honors Program Theses and Projects

This work describes the synthesis of Co3O4 using rod-shaped Gram-positive bacteria Lactobacillus rhamnosus as a template. The motivation behind this project was to find potentially cheaper and environmentally benign protocols in comparison to the current solution-based methods.

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Tools For Thought: Artifacts From The History Of Comparative Psychology, Dylan Kerr Dec 2020

Tools For Thought: Artifacts From The History Of Comparative Psychology, Dylan Kerr

Theses and Dissertations

This project explores the history of comparative psychology through close readings of apparatuses used in seminal experiments on animal behavior, drawing connections between seemingly disparate areas of human culture—including art, architecture, mythology, and economics—and the development of the science, with a particular focus on behaviorist and cognitive approaches.

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The Electronic Properties Of Ni(Pnn) Pincer Complexes Modulate Activity In Catalytic Hydrodehalogenation Reactions, Denan Wang, James R. Gardinier Dec 2020

The Electronic Properties Of Ni(Pnn) Pincer Complexes Modulate Activity In Catalytic Hydrodehalogenation Reactions, Denan Wang, James R. Gardinier

Chemistry Faculty Research and Publications

Three chloronickel(II) complexes of PNN‐ pincer ligands with pyrazolyl and diphenylphosphino donors appended to different arms of diarylamido anchors were prepared and fully characterized. The three derivatives (1‐OMe, 1‐Me, 1‐CF3) differ only by the identity of the para‐aryl substituent on the pyrazolyl arm with 1‐OMe being 310 mV easier to oxidize than 1‐CF3. All three complexes are competent catalysts for hydrodehalogenation reactions of 1‐bromooctane and a variety of aryl halides in dimethylacetamide using NaBH4 as both base and hydride source. Comparative studies using diverse substrates showed that catalytic activity correlates with electron donor properties; …

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A Conceptual Model Evaluation Framework For Adaptive Governance And Adaptive Management In Large-Scale Restoration Programs, Chadwin Smith Dec 2020

A Conceptual Model Evaluation Framework For Adaptive Governance And Adaptive Management In Large-Scale Restoration Programs, Chadwin Smith

School of Natural Resources: Dissertations, Theses, and Student Research

Adaptive management (AM) has become a kind of plastic phrase applied as a formulaic panacea for most major species recovery and ecosystem restoration efforts now underway across the United States. AM emerged as an application of the scientific method to resource management, closely tying management to science learning through experimental actions. The phrase “learning by doing” best captures the premise behind developing an experimental management approach that could be applied on the larger scale of a river system or ecosystem. In nearly five decades of application, however, examples of successful AM implementation at large scales are few and conflict remains …

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Building Solar Shading, Vibhu Sharma Dec 2020

Building Solar Shading, Vibhu Sharma

Mechanical and Aerospace Engineering Graduate Student Publications

This paper proposes a novel approach to building solar shading, aiming to reduce energy consumption by up to one-third (E/3 model). Through a comprehensive literature review, this paper explores passive solar building designs that maximize thermal comfort while minimizing auxiliary power needs. The methodology involves reviewing existing literature, designing a potential building skin model for buildings, and exploring further actions needed to complete a specific design. This research addresses concerns about investment cost and payback period for environment-friendly net-zero houses, aiming to retrofit existing architectures and promote sustainability.

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Validating An Open-Source Uvlm Solver For Analyzing Flapping Wing Flight, Cameron Urban Dec 2020

Validating An Open-Source Uvlm Solver For Analyzing Flapping Wing Flight, Cameron Urban

Mechanical Engineering and Materials Science Independent Study

Scientists have long used the unsteady vortex lattice method (UVLM) to simulate flapping wing flight. However, until recently, there has not been an available open-source UVLM solver designed explicitly for this field. Ptera Software is the only open-source UVLM solver that can simulate flapping wing aerodynamics without the modifications required by other open-source solvers. This report documents the next step in the software’s development: validation of its results. Comparing Ptera Software’s output to high-fidelity experimental data of the pressures on a flapping wing robot shows that the simulated results predict the trends and magnitudes of the net lift over time …

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Improving The Maximum Power Point Tracking Efficiency Of Photovoltaic Arrays Via Machine Learning And Deep Learning, Sumedha Inamdar Dec 2020

Improving The Maximum Power Point Tracking Efficiency Of Photovoltaic Arrays Via Machine Learning And Deep Learning, Sumedha Inamdar

Master of Science in Computer Science Theses

Under partial shading conditions, photovoltaic (PV) modules in a solar array experience varying irradiance. A Global Maximum (GM) and multiple Local Maximums (LMs) can originate on the Power-Voltage (P-V) curve under nonuniform irradiance conditions. There are many maximum power point tracking (MPPT) algorithms developed to detect the true maximum power point (MPP) of a PV array. However, in the real-world environment, limited samples of power-voltage (P-V) data might be available to quickly and accurately predict the position of the global maximum point. Since the change of environmental conditions are dynamic, limited time is available to locate the global peak. Machine …

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Malware Classification With Gaussian Mixture Model-Hidden Markov Models, Jing Zhao Dec 2020

Malware Classification With Gaussian Mixture Model-Hidden Markov Models, Jing Zhao

Master's Projects

Discrete hidden Markov models (HMM) are often applied to the malware detection and classification problems. However, the continuous analog of discrete HMMs, that is, Gaussian mixture model-HMMs (GMM-HMM), are rarely considered in the field of cybersecurity. In this study, we apply GMM-HMMs to the malware classification problem and we compare our results to those obtained using discrete HMMs. As features, we consider opcode sequences and entropy-based sequences. For our opcode features, GMM-HMMs produce results that are comparable to those obtained using discrete HMMs, whereas for our entropy-based features, GMM-HMMs generally improve on the classification results that we can attain with …

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Drawing Normal Curves: A Visual Analysis Of Feedback In Writing-To-Learn Assignments In An Introductory Statistics Course For Community College Students, Samantha Estrada Aguilera Dec 2020

Drawing Normal Curves: A Visual Analysis Of Feedback In Writing-To-Learn Assignments In An Introductory Statistics Course For Community College Students, Samantha Estrada Aguilera

The Qualitative Report

Writing-to-learn benefits students in polishing their communication skills and understanding of statistical concepts cultivating a deeper understanding of statistics. A series of writing-to-learn activities were given to introductory statistics students at a community college in the Rocky Mountain region of the United States. Historically, research on the teaching and learning of statistics has been performed on undergraduates while overlooking the experiences of community college students in learning statistics. A total of 79 students completed the feedback instrument over the course of three semesters (Summer 2017, Fall 2017, and Spring 2018). The feedback instrument included three Likert scale questions, two open-ended …

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Efficient And Mild Four-Component Process For The Synthesis Of Highly Substituted Dihydro-2-Oxopyrroles Using Zrocl2∙8h2o As An Environmental-Ly Friendly Catalyst, Farzaneh Mohamadpour Dec 2020

Efficient And Mild Four-Component Process For The Synthesis Of Highly Substituted Dihydro-2-Oxopyrroles Using Zrocl2∙8h2o As An Environmental-Ly Friendly Catalyst, Farzaneh Mohamadpour

Makara Journal of Science

This study investigated the catalytic ability of ZrOCl2∙8H2O as a mild, environmentally benign nature, and economical catalyst for the multi-component efficient synthesis of biologically active highly substituted dihydro-2-oxopyrrole derivatives with excellent yields and short reaction times. This procedure has several advantages, including use of mild, nontoxic, and inexpensive catalysts, one-pot synthesis, environmentally benign nature, simple operational procedure, and highly efficient conditions.

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How To Break The "Siwei"?—Practice And Enlightenment Based On Research Institute Evaluation Of Chinese Academy Of Sciences, Li Xiaoxuan, Xu Fang Dec 2020

How To Break The "Siwei"?—Practice And Enlightenment Based On Research Institute Evaluation Of Chinese Academy Of Sciences, Li Xiaoxuan, Xu Fang

Bulletin of Chinese Academy of Sciences (Chinese Version)

In 2018, the state issued breaking the "Siwei" related document, while "Siwei" means only papers, only titles, only education back ground, and only awards, and five ministries and institutions, i.e., Ministry of Science and Technology, Ministry of Education, Ministry of Human Resources and Social Security, Chinese Academy of Sciences, and Chinese Academy of Engineering, collaboratedly started the special action of breaking "Siwei". Most researchers in universities and research institutions have both expectations and concerns. There are different opinions on how to break the "Siwei" into a hot topic. Based on the introduction and analysis of the development and evolution of …

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Data Science And Computing Intelligence: Concept, Paradigm, And Opportunities, Cheng Xueqi, Mei Hong, Zhao Wei, Wah Wan Sang B, Shen Huawei, Li Guojie Dec 2020

Data Science And Computing Intelligence: Concept, Paradigm, And Opportunities, Cheng Xueqi, Mei Hong, Zhao Wei, Wah Wan Sang B, Shen Huawei, Li Guojie

Bulletin of Chinese Academy of Sciences (Chinese Version)

The development of data science is valuable to clarify the theoretical boundary of data science, and provides new possibilities and opportunities for the sustainable development of computing intelligence. Meanwhile, the development of computing intelligence and the emergence of new intelligence paradigms can offer new chance for applications of big data in various industries and fields. This paper discusses the connotation of data science, the development of computing intelligence, the new intelligence paradigm, and lists the key applications leading the development of data science and computing intelligence. Furthermore, based on the discussion during the 667th Xiangshan Science Conference, seven key problems …

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Computational Analysis Of Chromophore Tripeptides Followingfusion Of Enhanced Green Fluorescent Protein And Cell-Penetrating Peptides, Silvia Tri Widyaningtyas, Ekawati Betty Pratiwi, Budiman Bela Dec 2020

Computational Analysis Of Chromophore Tripeptides Followingfusion Of Enhanced Green Fluorescent Protein And Cell-Penetrating Peptides, Silvia Tri Widyaningtyas, Ekawati Betty Pratiwi, Budiman Bela

Makara Journal of Science

Cell-penetrating peptides (CPPs) are small peptides that can transfer other materials into a cellular compartment. In this research, we studied the effect of fusion of new CPPs to the N-terminal of enhanced Green Fluorescent Protein eGFP on the ability of the latter to fluoresce. Results showed that the recombinant protein CPPs-eGFP could be successfully expressed in Escherichia coli. In contrast to E. coli expressing wild-type eGFP, which could fluoresce under ultraviolet (UV) or visible light, E. coli expressing CPPs-eGFP lost their ability to fluoresce. PyMol, a molecular visualization system, revealed that fusion of the new CPPs to the N-terminal …

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Dft-Based Study Of Electric Field Effect On The Polarizability Of Three Ringed Nematic Liquid Crystal Molecules, Pranav Upadhyay, Mirtunjai Mishra, Ankur Trivedi, Jitendra Kumar, Asheesh Kumar, Devesh Kumar Dec 2020

Dft-Based Study Of Electric Field Effect On The Polarizability Of Three Ringed Nematic Liquid Crystal Molecules, Pranav Upadhyay, Mirtunjai Mishra, Ankur Trivedi, Jitendra Kumar, Asheesh Kumar, Devesh Kumar

Makara Journal of Science

Owing to its successful application to complex molecular systems, computational density functional theory (DFT) has been used to study the effect of an electric field on the molecular polarizability and HOMO–LUMO gap of 1-phenyl-4-{2-[(1s,4r)-4-pentylcyclohexyl]ethyl}benzene (1) and its fluoro-, chloro-, and cyano- derivatives, namely, 1-fluoro-4-(4-{2-[(1s,4r)-4-pentylcyclohexyl]ethyl}phenyl)benzene (2), 1-chloro-4-(4-{2-[(1s,4r)-4-pentylcyclohexyl]ethyl}phenyl)benzene (3), and 4-(4-{2-[(1s,4r)-4-pentylcyclohexyl]ethyl}phenyl)benzonitrile (4). These molecules belong to the family of nematic liquid crystals with three rings: two benzene and one cyclohexane. Furthermore, two DFT approaches, namely, B3LYP and M062X, have been used to examine the results obtained. This study reveals a remarkable feature: the polarizability of these molecules follows nearly a step function …

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