Digital Commons Network^™

Design Of 3d Visualization Monitoring System For Oil Field Pumping Unit Based On Unity3d, Liqiang Liu, Wenlei Sun, Yi Wang, Bingkai Wang

Journal of System Simulation

Abstract: Aiming at the defects of single monitoring form, low degree of 3D visualization and poor linkage of pumping unit, the information-physical real-time mapping is introduced to develop the 3D visualization monitoring system for oil field pumping unit. The digital space of pumping unit are designed and the design architecture of virtual-real interaction layer is built. The composition and relation framework of 3D visualization system are built. Combined with the inverse kinematics, the mathematical model is built, and the overall architecture of the pumping unit 3D visualization system is designed based on the five-dimensional model and Unity3D platform. The beam …

Impact Of Covid‑19 On Food Security And Diet Quality In Chilanga District, Zambia, Shela Sridhar, Janella Kang, Joyce Makasa, Sally Bell‑Cross, Isabel Madzorera, Ethan Zulu, Davidson H. Hamer

Department of Child, Youth, and Family Studies: Faculty Publications

Introduction Food security and nutrition have been severely impacted during the COVID-19 pandemic, particularly in low- and middle-income countries (LMICs). We aimed to quantify the impacts of the pandemic on food security and diet diversity within Chilanga District in Zambia and identify target areas for high-impact social protection and safety net programs.

Methods We conducted a cross-sectional study in Chilanga district immediately after the Omicron variant surge in February 2022. Diet quality and food security were assessed based on a household diet questionnaire and a Minimum Dietary Diversity-Women (MDD-W) score was calculated. A paired t-test was used to determine whether …

Euler’S Prime-Producing Polynomial Revisited, Robert Heffernan, Nick Lord, Des Machale

Department of Mathematics Publications

Euler’s polynomial f (n) = n2 + n + 41 is famous for producing 40 different prime numbers when the consecutive values 0, 1, …, 39 are substituted: see Table 1. Some authors, including Euler, prefer the polynomial f (n − 1) = n2 − n + 41 with prime values for n = 1, …, 40. Since f (−n) = f (n − 1), f (n) actually takes prime values (with each value repeated once) for n = −40, −39, …, 39; equivalently the polynomial f (n − 40) = n2 − 79n + 1601 takes (repeated) prime values …

Developing And Piloting An Online Course On Osteoporosis Using A Multidisciplinary Multi-Institute Approach- A Cross-Sectional Qualitative Study, Lena Jafri, Hafsa Majid, Arsala Jameel Farooqui, Sibtain Ahmed, Muhammad Umer Naeem Effendi, Maseeh Uz Zaman, Qamar` Riaz, Noreen Nasir, Syeda Sadia Fatima, Sarah Nadeem, Rizwan Haroon Rashid, Aysha Habib

Department of Pathology and Laboratory Medicine

Introduction: Postgraduate medical trainees (PGs) in developing nations face various educational hurdles due to limited access to quality resources and training facilities. This study aimed to assess the effectiveness of e-learning, particularly Massive Open Online Courses (MOOCs), within postgraduate medical education. It involved the development of a customized online course focused on osteoporosis for PGs and an examination of their perspectives and preferences concerning online learning methods like Virtual Learning Environment (VLE) platforms.
Methods: The study was conducted from January 2018 to December 2020. A multi-institutional, multidisciplinary team was assembled to design an osteoporosis course on the VLE platform. PGs …

Spectator 2024-02-15, Editors Of The Spectator

The Spectator

No abstract provided.

Gauss Circle Problem Over Smooth Integers, Ankush Goswami

School of Mathematical & Statistical Sciences Faculty Publications

For a positive integer 𝑛, let 𝑟2(𝑛) be the number of representations of 𝑛 as sums of two squares (of integers), where the convention is that different signs and different orders of the summands yield distinct representations. A famous result of Gauss shows that 𝑅(𝑥) ∶= ∑ 𝑛≤𝑥 𝑟2(𝑛) ∼ 𝜋𝑥. Let 𝑃(𝑛) denote the largest prime factor of 𝑛 and let 𝑆(𝑥, 𝑦) ∶= {𝑛 ≤ 𝑥 ∶ 𝑃(𝑛) ≤ 𝑦}. In this paper, we study the asymptotic behavior of 𝑅(𝑥, 𝑦) ∶= ∑ 𝑛∈𝑆(𝑥,𝑦) 𝑟2(𝑛) for various ranges of 2 ≤ 𝑦 ≤ 𝑥. For 𝑦 in a …

February 15, 2024, The Daily Mississippian

Daily Mississippian (all digitized issues)

No abstract provided.

Optimal Scheduling Strategy Of Virtual Power Plant With Carbon Emission And Carbon Penalty Considering Uncertainty Of Wind Power And Photovoltaic Power, Jijun Shui, Daogang Peng, Yankan Song, Qiang Zhou

Journal of System Simulation

Abstract: To better meet the development needs of China's new power system, an optimal scheduling strategy of virtual power plant(VPP) with carbon emission and carbon penalty considering the uncertainty of wind power and photovoltaic power is proposed. The mathematical description of photovoltaic(PV), wind turbine(WT), combined heat and power(CHP) unit and energy storage system (ESS) is carried out, and a wind-solar output model considering the uncertainty is established. The scenario generation and reduction method is used to generate the typical scenario. To maximize the overall operation benefit of VPP, considering carbon emission cost and carbon penalty, an optimal scheduling model of …

Flipper Control Method For Tracked Robot Based On Deep Reinforcement Learning, Hainan Pan, Bailiang Chen, Kaihong Huang, Junkai Ren, Chuang Cheng, Huimin Lu, Hui Zhang

Journal of System Simulation

Abstract: Tracked robots with flippers have certain terrain adaptation capabilities. To improve the intelligent operation level of robots in complex environments, it is significant to realize the flipper autonomously control. Combining the expert experience in obstacle crossing and optimization indicators, Markov decision process(MDP) modeling of the robot's flipper control problem is carried out and a simulation training environment based on physics simulation engine Pymunk is built. A deep reinforcement learning control algorithm based on dueling double DQN(D3QN) network is proposed for controlling the flippers. With terrain information and robot state as the input and the four flippers' angle as the …

Short-Term Bus Passenger Flow Prediction Based On Convolutional Long-Short-Term Memory Network, Jing Chen, Zhaochong Zhang, Linkai Wang, Mai An, Wei Wang

Journal of System Simulation

Abstract: To address the problem that the traditional short-time passenger flow prediction method does not consider the temporal characteristics similarity between the inter-temporal passenger flows, a shorttime passenger flow prediction model k-CNN-LSTM is proposed by combining the improved k-means clustering algorithm with the CNN and the LSTM. The k-means is used to cluster the intertemporal timeseries data, the k-value is determined by using the gap-statistic, and a traffic flow matrix model is constructed. A CNN-LSTM network is used to process the short-time passenger flows with spatial and temporal characteristics. The model is tested and parameter tuned by the real dataset. …

The Lived Experiences Of Urhobo Women From The Niger Delta Region Of Nigeria During The Menopausal Transition, Omemiyere Sheila Uwayzor

Walden Dissertations and Doctoral Studies

This qualitative phenomenological study offered an in-depth exploration of the menopausal experiences of seven Urhobo women, ages 45–65 years old, representing diverse occupational backgrounds and communities from the Niger Delta region of Nigeria, who shed light on the multifaceted dimensions of menopausal experiences. Grounded in the Meleis transitions theory, the research presented thematic insights from semi-structured interviews, capturing the participants’ physiological, emotional, cultural, and healthcare-related experiences. Interviews were conducted with seven Urhobo women aged between 45 and 65 years old. These menopausal women responded to the research question regarding their lived experiences of Urhobo women during the menopausal transition. Using …

Child Health Nurses’ Perceptions Of The Family Community-Based Assistance Resourcing And Education Program In Contemporary Practice: A Qualitative Study, Nicole Latham, Jeanine Young, Josephine Wilson, Michelle Gray, Kendall George

Research outputs 2022 to 2026

Background. The Family Community-based Assistance Resourcing and Education Program (FCP) is a nurse home visiting program that was introduced in Queensland two decades ago to redress health inequalities for infants from families experiencing specific social stressors. Locally adapted versions of this home visiting program are still in use, but have not been evaluated. This study examined child health nurse perceptions of the adapted FCP in one regional Queensland health service. Methods. A qualitative descriptive exploratory study using two focus groups (conducted May 2019) with Child Health Nurses who delivered the FCP was conducted. Transcripts of digital recordings were analysed using …

Bus Traffic Strategy Based On Immune Theory In Network Environment, Cao Li, Rui Zheng, Xiaolu Ma, Ziqiong Ding, Junyi Zhong, Sheng Zhang, Jingjing Qi

Journal of System Simulation

Abstract: In V2X network environment, the bus system can obtain dynamic global information and the bus traffic strategy is carried out based on the road scene between adjacent bus stops. The mathematical model of bus rapid traffic is constructed with the difference of green time ratio as the main parameter. A hybrid genetic operator is proposed on the basis of the combination of genetic algorithm and immune theory, the design of affinity, the selection of excellent antibodies. A bus traffic strategy based on immune theory is proposed on the basis of the improvement of adaptive crossover and mutation probability. The …

Research On Vehicle Detection Method Based On Improved Yolox-S, Xiliu Zhang, Xiaoling Zhang, Minjun He

Journal of System Simulation

Abstract: A improved vehicle detection model based on multi-scale feature fusion of YOLOX network is proposed to solve the problem of missing and false detection of small vehicle targets. Ghost-cross stage partial(CSP) based on the depth separable convolution is designed to replace part of cross stage partial in network to speed up the speed of detection. The max pooling mode of model is improved to Softpool mode, and coordinate attention mechanism is introduced to enhance the feature expression of target to be detected and to optimize the problem of target missing detection. Focal Loss is selected as the confidence loss …

The Grizzly, February 15, 2024, Marie Sykes, Sidney Belleroche, Nicolas Ungurean, Renie Christensen, Mairead Mcdermott, Dominic Minicozzi, Adam Denn

Ursinus College Grizzly Newspaper, 1978 to Present

Freedom, Transformation and Pathways: Spring Exhibits at the Berman • Ursinus Faculty Discusses Generative A.I. • An Artist's Craft: The Making of Running Away • Everybody Dies • Opinions: What Was Your Favorite Memory Studying Abroad? • Ursinus Athletics Crossword • Bears Come in the Clutch: Ursinus Reels Off Two Straight Victories

Another Missed Opportunity To Adopt A Universally Accepted Maritime Treaty, Raul (Pete) Pedrozo

International Law Studies

In March 2023, an intergovernmental conference adopted the Agreement under the United Nations Convention on the Law of the Sea on the conservation and sustainable use of marine biological diversity of areas beyond national jurisdiction (BBNJ Agreement). Inspired by a resurgence of the New International Economic Order (NIEO), the BBNJ Agreement contains numerous provisions that will have the practical effect of making ratification of the agreement untenable for the industrialized nations. Similar provisions were included in the original Part XI of the United Nations Convention on the Law of Sea (UNCLOS). As a result, industrialized nations refused to sign or …

Gaussian Rbf Kernels Via Fock Spaces: Quaternionic And Several Complex Variables Settings, Antonino De Martino, Kamal Diki

Mathematics, Physics, and Computer Science Faculty Articles and Research

In this paper, we study two extensions of the complex-valued Gaussian radial basis function (RBF) kernel and discuss their connections with Fock spaces in two different settings. First, we introduce the quaternionic Gaussian RBF kernel constructed using the theory of slice hyperholomorphic functions. Then, we consider the case of Gaussian RBF kernels in several complex variables.

2024 February 15 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Weekly Drought Summaries

No abstract provided.

Current Perspectives And Challenges In The Estimation Of Fruit Juice Consumption Across The Lifecycle In Europe, Janette Walton

Department of Biological Sciences Publications

Fruit juice (FJ) is typically low in energy, contains natural sugars, important amounts of micronutrients and is not permitted to have added sugars/sweeteners. However, its role in a healthy diet is under scrutiny partly due to the wider adoption of the definition for free sugars in nutrition policy. This review aimed to identify data on FJ consumption from national food consumption surveys across Europe, to examine current intakes, percent consumers and its contribution to intakes of energy, total sugars, free sugars, vitamin C, folate and potassium. Data were extracted on the population mean intake of FJ and its contribution to …

Teaching And Learning In Stem With Computation, Modeling, And Simulation Practices, Alejandra J. Magana

Purdue University Press Books

Computation, modeling, and simulation practices are commonplace in the STEM workplace, yet formal training embedded in disciplinary practices is not as standard in the undergraduate classroom. Teaching and Learning in STEM With Computation, Modeling, and Simulation Practices: A Guide for Practitioners and Researchers gives instructors a handbook to ensure their curriculum bridges the gap between the classroom and workplace by equipping students with computational skills and preparing them for a rewarding career in STEM. Grounded in theory and supported by fifteen years of education research at the undergraduate level, this book provides instructional, pedagogical, and assessment guidance for integrating modeling …

Montana Kaimin, February 15, 2024, Students Of The University Of Montana, Missoula

Montana Kaimin, 1898-present

Student newspaper of the University of Montana, Missoula.

Unhcr Egypt's Impact On Refugees And Asylum Seekers: 2000-2020, Abdallah Bahar

Theses and Dissertations

This thesis examines the shifts in UNHCR Egypt’s practice and policy and their impacts on refugees and asylum seekers in Egypt. It focuses on procedures of reception, registration, refugee status determination (RSD), and resettlement. It also examines the changes in services provided to refugees and asylum seekers, such as health care, education, residency permits, and future change. In addition, the study explores the major reasons for these shifts and whether they are stimulated by the global refugee regime or other factors such as domestic legislation. The thesis attempts to answer the following two questions: 1) what are the shifts in …

Essays On Cancer Patients, Quality Of Life, And Social Support: Evidence From Nepal, Muhammad Adnan Shahid

Economics ETDs

This dissertation is organized in five chapters. The first chapter provides a summary of the three research articles that are combined in this dissertation. It highlights the goals of each research paper, and outlines their contribution to the existing literature and the field of economics. Chapters 2 and 3 are based on a field study that I conducted on cancer and non-cancer patients in various cancer hospitals in Nepal. Chapter 4 uses data from field survey conducted by scholars of the Nepal Study Center, UNM, including me, in Sindhupalchok district of Nepal after the devastating earthquake of 2015. The final …

Quality Characteristic Of Instant Rice Produced Using Microwave-Assisted Hot Air Drying, Anne Adhiambo Okeyo, Kaushik Luthra, Alan R. Vazquez, Griffiths Atungulu

Food Science Faculty Publications and Presentations

Background and Objectives

It is of utmost importance for the instant rice processing sector to reassess its methodologies to enhance the overall quality of instantized rice products. This study aimed to analyze how the combination of microwave (MW) drying and convective heated air drying influences the quality of instantized rice. Novel approaches for drying precooked rice were explored, involving the utilization of an industrial MW operating at a frequency of 915 MHz with treatment conditions set at 4 kW power for 8 min. This was followed by two distinct convective oven drying strategies, each lasting 4 min. Specifically, stepwise convective …

Heart Health 101: Uab Expert Offers Top Tips For Heart-Healthy Diet, Katherine Kirk

Browse All News

No abstract provided.

Entrepreneurship Strategies For Reintegrating African American Male U.S. Military Veterans After Military Service, Schavass L. Hamilton

Walden Dissertations and Doctoral Studies

African American male U.S. military veterans struggle with transitioning from military to civilian life; however, engaging in entrepreneurship can ease this integration. Grounded in the Schlossberg 4-S model, the purpose of this qualitative pragmatic inquiry was to explore the experiences of four veterans and one active-duty member in their transition from military to entrepreneurial practices. Data were collected from semi-structured interviews. The thematic analysis was used to identify eight themes: (a) challenges encountered in entrepreneurship, (b) minimal external financial assistance used, (c) multiple paths to entrepreneurial education, (d) strategies for entrepreneurial success, (e) adapting to COVID-19 challenges, (f) diverse marketing …

Middle And High School Administrators’ Perceptions On The Use Of Culturally Responsive Leadership Practices Related To Student Discipline, Amanda Mccullough

Walden Dissertations and Doctoral Studies

Educators in the United States have become increasingly concerned about students who are suspended out of school because they miss classroom instruction and are then less likely to graduate. The problem addressed in this study was that school administrators continued to use exclusionary practices for discipline negating more culturally responsive practices. The purpose of this qualitative case study was to explore middle and high school administrators’ perceptions on their approaches to discipline and culturally responsive practices when considering disciplinary consequences as an alternative to out of school suspension. Culturally responsive school leadership served as the conceptual frameworks for this study. …

Association Between Sociodemographic Variables And Low Birthweight Among Disabled Black Mothers, Yewunetu Dessalegn Malefia

Walden Dissertations and Doctoral Studies

Low birthweight (LBW) affects around 30 million infants annually. Infants with LBW face a 20-fold risk of mortality compared to those weighing 2,500 grams or more at birth. In the United States, the prevalence of LBW is nearly double among Blacks compared to Whites. Despite 61 million U.S. adults with disabilities, including 35 million women, there remains a significant research gap concerning factors that contribute to LBW among Black mothers with a disability (BMWD). This retrospective study employed 2019 and 2020 Pregnancy Risk Assessment Monitoring System (PRAMS) datasets to investigate the association between LBW and sociodemographic factors among BMWD. Bivariate …

Radiation From An Oscillating Dipole In The Presence Of Photon-Sector Cpt And Lorentz Violation, Joshua O'Connor, Brett Altschul

Faculty Publications

We examine one of the standard loci for studying electromagnetic wave emission - the radiation from an oscillating electric dipole - in a model in which the electromagnetic sector is modified to include novel CPT- and Lorentz-violating propagation effects involving a preferred axial vector background. We evaluate the vacuum-birefringent radiation fields, including nonperturbative terms where appropriate. In general, the energy momentum carried by the fields in this model is known to have a complicated nonperturbative structure, which cannot be captured by naive power-series expansions in the components of the preferred background vector. However, we nevertheless find that at the lowest …

Risk Of Chronic Health Conditions In Lesbian, Gay, And Bisexual Survivors Of Adolescent And Young Adult Cancers, Amy M Berkman, Eunju Choi, Christabel K Cheung, John M Salsman, Susan K Peterson, Qian Lu, Michelle A T Hildebrandt, Susan K Parsons, Michael E Roth

Faculty, Staff and Student Publications

BACKGROUND: In the general population, individuals with minoritized sexual orientation and gender identity have a higher burden of chronic health conditions than heterosexual individuals. However, the extent to which sexual orientation is associated with excess burden of chronic conditions in adolescent and young adult cancer survivors (AYACS) is unknown.

METHODS: Lesbian, gay, and bisexual (LGB) AYACSs, LGB individuals without a history of cancer, and heterosexual AYACSs were identified by self-reported data from the cross-sectional National Health Interview Survey (2013-2020). Socioeconomic factors and the prevalence of chronic health conditions were compared between groups using χ

RESULTS: One hundred seventy LGB cancer …