Digital Commons Network^™

Optimizing Underground Construction And Plan Management For The Mong Duong Coal Mine, Vietnam, Phi Hung Nguyen, Thi Kim Thanh Nguyen, Duc Hung Pham, Quang Phuc Le, Thai Tien Dung Vu

Journal of Sustainable Mining

Mong Duong mine’s output objective is 1.5 million tons, which requires approximately 10,000 m of tunnel excavation each year. Because of the complicated geological features, the actual work is vastly different, necessitating regular changes in design and technical approaches, as well as plans for material supply, money, and staff. On the other hand, office personnel visit the construction site to update the work status after each report, and the department head and board of directors make choices on development and execution. This process takes time because it is carried out manually. As a result, a solution to support the optimization …

Spatiotemporal Variation Of Vegetation Cover In Mining Areas Of Ysr Kadapa District, Andhra Pradesh Using Remote Sensing And Gis, Vinod Kumar Yarlanki, Prudhvi Raj Muppala, Prem Kumar Yasam, Balaji Gollapudi, Sumanth Moddu, Appanna Besta

Journal of Sustainable Mining

The spatiotemporal variation of vegetation cover in the mining areas of YSR Kadapa district, Andhra Pradesh, using Remote Sensing and GIS techniques. By focusing on the years 2014, 2018, and 2023, the analysis provides insights into changes observed in water bodies, bare soil, sparse vegetation, moderate vegetation, and dense vegetation. The results reveal dynamic trends in land cover categories, highlighting the environmental impact of mining activities in the region. A significant decline in water bodies is observed, with the area reducing from 3.48 km² in 2014 to 1.91km² in 2023. This decrease raises concerns about the potential degradation …

Assessing The Perception Gap: Mining Impacts From Community And Company Perspectives In Nigeria, Ikechukwu Mbachu

Journal of Sustainable Mining

The study intends to evaluate how mining companies and their host communities perceive the impacts of mining operations and to ascertain if there are significant differences in how both parties perceive the impacts of mining in Nigeria. The study was carried out in twelve states in Nigeria and covered the six geopolitical zones in Nigeria. Data was collected through a questionnaire and interviews carried out separately with community members and company representatives. The study investigated ten categories of mining impacts such as socioeconomic, environmental, health, physical and so on. To gauge the perceptions of the respondents on the different impact …

Effect Of Depth And Particle Size On Spontaneous Combustion Of Coal In Deep Underground Mines Of Jharia Coalfield, Debashish Mishra, D.P. Mishra, N K Mohalik, S K Ray, J K Pandey

Journal of Sustainable Mining

Since their inception, the deep mines have faced the challenges of spontaneous heating and fire. The study examines the impact of coal seam depth and particle size on the spontaneous combustion of coal. A spontaneous heating study of seven coal samples shows moisture, volatile matter, and ash do not exhibit any clear trend except for fixed carbon, which shows a direct relationship. However, crossing point temperature (CPT) and thermo-gravimetric (TG_ignition) temperature reveal an inverse relationship between spontaneous combustion and the depth of the coal seam. Five size ranges: < 106, 106–212, 212–425, 425–2000, and 0–212 µm are studied, which displayed an increase in mean specific surface area (SSA) by 87% and a decrease in …

Mineralogical Analysis And Beneficiation Assessment To Unlock The Lithium Potential In Kenticha Pegmatite Ore, Gutema Mekonen, Mulugeta Sisay, Goitom Gebreyohannes

Journal of Sustainable Mining

Lithium is utilized in various industries, especially currently Lithium-ion batteries are employed in electric vehicles and portable electronic devices as an energy source, in pharmaceutical industries, aerospace applications, glass and ceramics production, lubricants and greases, air purification systems, nuclear power, and aluminum production. The Kenticha pegmatite ore deposit in Ethiopia holds potential, and this study analyzed the mineralization of Kenticha spodumene ore and assessed its suitability for beneficiation by employing X-ray diffraction (XRD), Atomic Absorption Spectroscopy (AAS), and petrographic microscope analysis. The study determined the mineral composition, average composition, and texture of spodumene pegmatite ore for spodumene concentrate liberation. Based …

Potential Impact Of Coal Mining And Use For Electricity Generation In Brazil On Global Warming., Marisa Nascimento, Paulo Sergio Moreira Soares

Journal of Sustainable Mining

The study aims to evaluate the potential contribution of coal production for electric power generation in Brazil to greenhouse gases (GHG) emissions, applying life cycle assessment (LCA). The product system studied consists of mining, transportation of the coal to the power station, and power generation. The LCA was first developed only for coal mining in Brazil. Secondly, it was enlarged to include transportation of the coal domestically produced, the hard coal imported, and power generation (Integrated System BR). In the mining stage in Brazil (Brazilian coal), the contribution to the global warming potential was estimated at 237 kg of CO …

Determination Of The Liberation Size Of Mekaneselam Iron Ore In The Southern Wollo Zone, Northern Ethiopia: Implications For Beneficiation, Getahun Meseret, Bisrat Kebede, Belayneh Digafe

Journal of Sustainable Mining

Previous investigations in the target area primarily focused on ore genesis or the geological formations of the ore deposit, neglecting the specific beneficiation aspects associated with the ore. Due to gaps with respect to beneficiation aspects,the research aimed to determine the liberation size of the target iron-bearing ore mineral through mineralogical identification, chemical composition analysis, and examination of the particle size distribution. In this study, various methods were employed, including atomic absorption spectrometry (AAS), X-ray fluorescence (X-RF), X-ray diffraction (XRD) analysis, and sieve analysis. The chemical composition analysis of Mekaneselam iron ore revealed significant amount of 16.55–77.59 % Fe2O3, 7.31–59.02% …

Leveraging Intrinsic Properties For Classification Of Coal Seams Towards Spontaneous Combustion Proclivity And Predicting Susceptibility Using Machine Learning: Smart And Sustainable Mining Approach, Siddhartha Agarwal, Pradeep K. Gautam, Yuhao Zou, Rishabh Dwivedi, D.C. Panigrahi, C. Dagli, Atul Singh

Journal of Sustainable Mining

Mine fires and other hazards caused by spontaneous coal combustion are a pervasive and longstanding issue in Jharia coalfields, India. This study proposes a novel approach to classify coal seams based on their propensity to spontaneous combustion using the intrinsic properties of 30 coal samples from different seams. This method eliminates the need for expensive and time-consuming experimental determinations of susceptibility indices (SI) such as crossing point temperature (CPT), critical air blast (CAB), and differential thermal analysis (DTA). All clustering models, viz. hierarchical, k-means, and multidimensional scaling, aptly classify coal seams into three categories: highly risky, medium risky, and low …

A Dynamic Intuitionistic Fuzzy Group Decision Analysis For Sustainability Risk Assessment In Surface Mining Operation Projects, Mohammad Panahi Borujeni, Arash Behzadipour, Hossein Gitinavard

Journal of Sustainable Mining

With the increasing advancement of technology and science in the fields of engineering, different industries have different benefits that can help the global community in areas related to social, environmental, and economic requirements. The mining industry is one of the suitable sources of wealth production in different societies, which leads different societies to appropriate profitability. In this regard, one of the challenges facing managers and decision-makers is not related to financial challenges and risks. This research uses the dynamic intuitionistic fuzzy entropy method to compute the criteria weights, and the dynamic intuitionistic fuzzy maximizing similarity (DIF-SM) approach to compute the …

An Automated Integrated Web-Based Smart Tool For Open Stope Design, Yerkezhan Madenova, Fidelis Suorineni, Shuai Xu

Journal of Sustainable Mining

The Stability Graph is a widely used tool for the design of open stopes in underground mining. Many users of the Stability Graph still apply this design method manually. Although the manual approach has benefits, using multiple graphs and stability number computation charts for each stope surface is time-consuming, even for the experienced mining engineer. Current practice in the use of the method also limits data sharing. This paper presents a StopeSoft web-based tool for open stope stability prediction that is developed on the basis of the Stability Graph method and is available at openstope.com. StopeSoft incorporates flexibility in terms …

Education For Citizenship In Times Of Global Challenge: Iea International Civic And Citizenship Education Study 2022 International Report, Wolfram Schulz, John Ainley, Julian Fraillon, Bruno Losito, Gabriella Agrusti, Valeria Damiani, Tim Friedman

Civics and Citizenship Assessment

This open access book investigates the ways in which young people around the world are prepared to undertake their roles as citizens. It presents the international results from the third cycle of the study IEA’s International Civic and Citizenship Education Study (ICCS 2022). Based on data from 24 countries or benchmarking participants from Europe, Latin America, and Asia, ICCS 2022 studies contexts for and learning outcomes of civic and citizenship education in a wide range of national contexts at the beginning of the third decade of the 21st Century. It responds to both enduring and emerging challenges of educating young …

Survey Study On College Student’S Acceptance And Attitude Towards Generative Ai To Their Learning, Jinhua Wang

Selected Full Text Dissertations, 2011-

This study investigated college students’ attitudes and acceptance of generative AI tools like ChatGPT. These tools are advanced programs capable of understanding questions and responding in a conversational manner. The main objective is to determine whether college students find generative AI tools helpful for their learning and schoolwork. A comprehensive survey was conducted with 57 college students at an online survey platform SurveyMonkey.com. The survey solicited college students’ perceived usefulness of generative AI tools in academic settings regarding their school activities (such as writing papers, explaining complex topics, coding, solving math problems, and researching information). The model of Diffusion of …

Lessons In Low-Tech: A Handbook For Sustainable Education, Ceri Almrott, Loann Astorino, Sébastien Bette, Benoit Delinchant, Philippe Fortemps, Ulysse Girard, Paul Hendrick, Sacha Hodencq, Fabian Lecron, Julie Lhuissier, Kévin Loesle, Luis Miguel Lopez Santiago, Santiago Perez Rodriguez, Gauthier Renard, Tatiana Reyes, Virginie Vandenbulcke, John Walsh

Other resources

LT4SUSTAIN, an Erasmus+ funded transnational project, is at the forefront of responding to the increasing awareness of environmental and climate challenges. This awareness, particularly among youth, has led to a demand for social justice. With the coordinated work among six institutions, ranging from higher education institutions to private companies and associations, LT4SUSTAIN aims to raise awareness of Lowtech across society.

LT4SUSTAIN is pioneering a unique approach to technology design. By developing “hackathons” and other “hands-on” events, we are engaging students and industry in a way that improves inclusiveness. Our objective is to equip individuals with the skills to embark on …

Diagnosing Pulmonary Embolism Utilizing Computed Tomography, Abigail Nolan

Student Research Poster Presentations 2025

The purpose of this project is to explore the evolution of computed tomography (CT) technology in diagnosing a pulmonary embolism (PE) and highlight its superiority over other imaging modalities in modern medical practice. A pulmonary embolism (PE) is a life-threatening condition caused by a blood clot blocking blood flow in the lungs. It is one of the leading causes of sudden death and has severe complications. Rapidly and accurately diagnosing PE is critical for effective treatment and improved patient outcomes. Computed tomography pulmonary angiography (CTPA) has become the gold standard for diagnosing PE due to its high sensitivity, specificity, and …

Effects Of Selected Language-Related Factors On Reading Performance And Growth In Grades 4-5: An Hypothesis-Generating, Growth Mixture Modeling Study, Robyn Mennella

Selected Full Text Dissertations, 2011-

As U.S. society becomes increasingly culturally and linguistically diverse, public schools face challenges in developing more effective approaches to reading instruction, especially for students who are learning English as a new language. This dissertation investigated the impact of selected language-related factors on the reading performance and growth trajectories of 370 students in Grades 4 and 5, obtained through six nationally-normed i-Ready reading assessments in a suburban New York State public school district. Controlling for gender, socioeconomic status, and having an individualized education program, this study examined three key factors: English language proficiency, participation in two-way dual language instruction, and primary …

Scalable And Ethical Insider Threat Detection Through Data Synthesis And Analysis By Llms, Haywood Gelman, John Hastings

Research & Publications

Insider threats wield an outsized influence on organizations, disproportionate to their small numbers. This is due to the internal access insiders have to systems, information, and infrastructure. Signals for such risks may be found in anonymous submissions to public web-based job search site reviews. This research studies the potential for large language models (LLMs) to analyze and detect insider threat sentiment within job site reviews. Addressing ethical data collection concerns, this research utilizes synthetic data generation using LLMs alongside existing job review datasets. A comparative analysis of sentiment scores generated by LLMs is benchmarked against expert human scoring. Findings reveal …

Course Catalog 2025-2026, Csusb

CSUSB Course Catalog

No abstract provided.

A Phenomenological Study Exploring Superintendent’S Perceptions On Four Servant Leadership Characteristics For Developing High-Performing Teams, Katie Chin-Berry

Dissertations

Purpose: The purpose of this phenomenological study was to explore and describe public school superintendents’ perceived impact of four servant leadership characteristics established by Spears (2010) on developing and maintaining high-performing teams. Methodology: This phenomenological research study explored and detailed how superintendents perceived the influence of four servant leadership characteristics on developing and maintaining high-performing teams. Eight participants were chosen using nonprobability purposeful and convenience sampling based on specific criteria, which required at least 4 years of experience in their district, a minimum of 10 years of experience in the K–12 public school system, and employed in a K–12 district …

Northeastern Illinois University, Academic Catalog 2025-2026, Northeastern Illinois University

Course Catalogs

No abstract provided.

2025 Welcome To Soar, Morehead State University. Office Of Communications & Marketing.

Communications and Marketing Publications Archive

The 2025 Morehead State University SOAR Guide Pack.

Mars Sample Return Earth Entry System Uncertainty Analysis, Michael D. Squire, Victor Cabrera, Eric Christiansen, Alan Jenkin, Kevin Hoffman, Quincy Mckown, Peter Parker, Glenn Peterson, Bruno Victorino Sarli, William P. Schonberg, Katie Steward, Brian Tulaba, Joel Williamsen

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Spacecraft designers and operators use micrometeoroid and orbital debris (MMOD) risk assessments to predict the probability that an MMOD particle impact will cause a critical failure to their systems. An important aspect of MMOD risk and associated requirements is the treatment of uncertainty, often difficult to quantify, or even estimate, for many elements of MMOD risk. This paper describes recent efforts to estimate uncertainties in inputs to the MMOD risk assessment process for a portion of the planned Mars Sample Return (MSR) campaign. The uncertainty bounds developed were used to examine their effect on overall mission MMOD risk.

Crrc Noaa Glcoe Oil Spill Modeling Workshop Report, Coastal Response Research Center

Coastal Response Research Center

NOAA’s Office of Response & Restoration (OR&R) partnered with Coastal Response Research Center (CRRC) to facilitate an International Oil Spill Modeling Working Group (IOSMWG) starting in February 2024. This effort was funded by the USCG’s Great Lakes Oil Spill Center of Expertise (GLCOE) with the following objectives:

• Improve collaboration among oil spill modelers
• Understand current state of oil spill modeling with respect to uncertainty, shorelines, coastal environments and countermeasures
• Identify potential advancements needed in uncertainty, shorelines, coastal environments and countermeasures
• Identify knowledge/research gaps to be addressed in uncertainty, shorelines, coastal environments and countermeasures

Though the IOSMWG continues to be facilitated …

Massera’S Theorem On Arbitrary Discrete Time Domains, Martin Bohner, Jaqueline G. Mesquita, Sabrina Streipert

Mathematics and Statistics Faculty Research & Creative Works

We present a general version of Massera's theorems for arbitrary discrete domains, based on a newly introduced definition for both linear and nonlinear equations. For scalar nonlinear equations, we identify sufficient conditions that ensure each µ-bounded solution approaches a periodic solution asymptotically. In the case of linear systems, we prove that the presence of a µ-bounded solution necessarily leads to a periodic solution. We also provide some examples to show the practical implications of our findings.

National Assessment Program Civics And Citizenship 2024 : Technical Report., Kate O'Malley, Renee Kwong, Dulce Lay, Jorge Fallas

Civics and Citizenship Assessment

This report describes the procedures and processes involved in the conduct of the National Assessment Program – Civics and Citizenship (NAP – CC) 2024. The report is divided into chapters covering: the assessment framework and instrument design, item development, test design, scoring student responses, the student questionnaire, student background information, sampling and weighting, data collection procedures and data management, and scaling procedures. The report include an extensive collection of tables and figures.

“That’S Where I Learned To Be A Good Mommy” Understanding How Adults Learn In A Home Visitation, Community-Based Partnership, Kelli R. Kerbawy

Theses, Dissertations and Capstones

In higher education, a growing interest exists in fostering partnerships between institutions and community-based programs to enhance the lives of individuals. These initiatives have encompassed a variety of programs, including life skills development and civic engagement opportunities facilitated by academic experts. Despite the plethora of educational prospects surrounding health, community engagement, and civic improvement, assessing the efficacy of adult learning in community settings remains challenging. Previous research has indicated inadequacies of conventional prenatal education programs in addressing the complex needs of expecting mothers.

This study centered on the adult learning experiences in the Maternal Infant Health Outreach Worker (MIHOW) program, …

Central Washington University 2025-2026 University Catalog, Central Washington University

Course Catalogs

No abstract provided.

A Set Of Axioms Providing A Basis For Understanding And Analyzing Work Systems In Organizational Settings, Steven Alter

Business Analytics and Information Systems

This paper proposes 24 axioms that form a basis for understanding and analyzing sociotechnical and totally automated work systems in organizational settings. The introduction identifies reasons for trying to develop axioms of that type. Two background sections compare axioms with other types of “knowledge objects”, illustrate the minimal presence of axioms in the IS discipline, define the domain of relevance for the axioms discussed here, and explain the process of developing those axioms. The axioms are organized in five categories: 1) system in context, 2) system operation, 3) system goals and goal attainment, 4) system uncertainties, and 5) system-related change. …

Can An Llm Use Work System Axioms When Describing Work Systems For Requirements Analysis?, Steven Alter

Business Analytics and Information Systems

This research-in-progress paper presents part of an ongoing project related to using LLMs for describing, analyzing, and designing work systems (including information systems). General axioms that apply to any non-trivial WS or IS might provide a path toward new tools and methods. This paper identifies 24 work system axioms that extend earlier research. They are organized in five categories: 1) system in context, 2) system operation, 3) system goals and goal attainment, 4) system uncertainties, and 5) system-related change. The axioms potentially address the challenge of helping business and IS/IT professionals understand and collaborate around systems in organization. This preliminary …

The Association Between Adverse Childhood Experiences And Professional Quality Of Life: Assessing Secondary Traumatic Stress, Burnout, And Compassion Satisfaction In Minnesota Teachers, Jaclyn Rehmke

All Electronic Theses and Dissertations

This study explored the relationship between Adverse Childhood Experiences (ACEs) and professional quality of life among Minnesota special education teachers, focusing on compassion satisfaction, burnout, and secondary traumatic stress. Participants included special education teachers who provided special education services to students in kindergarten through transition programs, held Tier 3 or Tier 4 teaching licenses, and had taught for at least 1 school year during the 2022-23, 2023-24, or 2024-25 academic years. A total of 1,025 teachers completed an online survey distributed via Qualtrics, which included the Adverse Childhood Experience Questionnaire and the Professional Quality of Life Scale (ProQOL5). Descriptive statistics …

The First Five Years: A Study Of Novice Teacher Retention In High-Poverty Urban Public Schools, Nathan Ziegler

All Electronic Theses and Dissertations

Using data from the 2020–2021 National Teacher and Principal Survey (NTPS), this quantitative study investigated the retention and attrition of novice teachers in high-poverty urban public schools in the United States. With large numbers of teachers leaving or planning to leave the profession and fewer qualified teachers entering the workforce, the issue of teacher retention continues to grow. Teacher turnover impacts schools financially, strains leaders who must continue to train new teachers and establish their schools’ culture, burdens other teachers who often must fill in for vacancies and support new teachers, and most importantly, negatively impacts students in a variety …