Digital Commons Network^™

Key Technologies And Engineering Practices For Green Drainage Of The Jurassic Burnt Rock-Hosted Water In The Shenfu Mining Area, Ji Zhongkui, Mou Lin, Wang Hai, Zhu Kaipeng, Zhao Kaixing, Chen Pan, Xue Xiaoyuan, Han Qiang, He Bo, Wang Fuming

Coal Geology & Exploration

Objective In the northern part of Shaanxi Province, coal mining has led to a pronounced contradiction between coal mining and water conservation, along with a serious threat to China’s ecological redline. These challenges necessitate transforming the mine water drainage pattern in coal mines. Green mine water drainage represents a key approach to achieving coordinated coal-water production in areas containing burnt rocks. Methods Focusing on the conservation-oriented utilization of the Jurassic burnt rock-hosted water in a coal mine within the Shenfu mining area, this study explored a solution to coordinated coal-water production in areas affected by burnt rock-hosted water from the …

Mine Water Storage In Deep Strata: Temperature Responses And The Quantitative Identification Of Primary Permeable Intervals, Xue Jiankun, Wang Shuangming, Zhang Pingsong, Wang Xiaodong, Han Le, Wang Zhizhou, Wang Yutong, Wang Zhibo

Coal Geology & Exploration

Background Storage in deep strata represents an effective approach to treating high-salinity mine water in mining areas of western China. For this technology, the use of directional wells can significantly enhance water injection efficiency, while selecting primary permeable intervals with high injectivity as drilling targets is key to its successful implementation. However, the accurate identification of these intervals in deep strata remains challenging. Methods By analyzing the wellbore temperature variations in the injection well during water injection, a qualitative model was developed to evaluate primary permeable intervals based on wellbore temperature curves. Following the principles of momentum and energy conservation, …

Field Tests On The Capillary Barrier Effect Of Covers For Comprehensive Utilization Of Solid Waste In Waste Dumps, Duan Xu, Chen Chuangchuang, Qiu Xun, Wang Bo, Shi Luyu, Yan Hanyang, Zou Yu, Qu Jin, Hu Zhaojiang

Coal Geology & Exploration

Background In the arid and semi-arid regions of northwestern China, the open-pit waste dumps of mining areas suffer from severe water erosion and the limited water-holding capacities of shallow cover soils. This restricts the ecological restoration of abandoned mine lands. Capillary barrier covers can enhance the water-holding capacities of water storage layers due to the differential hydraulic properties at the interface between fine- and coarse-grained layers. However, both the feasibility of constructing layered covers by mixing solid waste slags from waste dumps with clay and the water regulation performance of the covers are yet to be verified in the field. …

An Experimental Study On The Compressive Shear Failure Characteristics Of Mining-Induced Fractured Rock Blocks In The Absence Of Lateral Confinement And Under Unilateral Confinement, Wang Wenxue, Zhang Shicheng, Li Linyang, Zhang Ruochen, Liang Yankun, Chang Jian, Pan Xuwei, Zhao Guizhang

Coal Geology & Exploration

Objective Rock bridges exert a controlling influence on the deformation, fracture field evolution, and structural stability of mining-induced fractured rock masses. Therefore, it is necessary to investigate their deformation and failure characteristics, as well as the underlying controlling mechanisms, under different confinement conditions. Such investigations will provide theoretical support for the safe mining of underground coal seams and the prevention and control of mining-induced disasters. Methods Mechanical models of fractured rock blocks containing rock bridges were established. Specimens with different fracture dip angles, rock bridge widths, and material strengths were prepared using rock-like materials. Furthermore, an independently developed compressive shear …

An Image Recognition And Multi-Parameter Quantitative Characterization System For Fractures In Roadway Rocks, Xiong Yu, Jiang Lichun, Kong Dezhong, Li Jinzhu

Coal Geology & Exploration

Objective Conventional measurement methods for rock fractures suffer from low efficiency and high subjectivity. On the other hand, simple image recognition techniques struggle to achieve high-precision multi-parameter integrated analysis of rock fractures in complex roadway environments. To address these challenges, this study aims to develop an image recognition and multi-parameter quantitative characterization system for rock fractures. Methods At the core of the system is the formulation of a combined image preprocessing strategy. Specifically, fracture segmentation is conducted based on adaptive threshold binarization, isolated noise points are removed using morphological opening, and median filtering is introduced to perform the refined polishing …

A Method Of Reflected In-Seam Wave Imaging Based On The Structural Similarity Index Of Adjacent Gathers, Wang Ji, Wei Zhongli, Ye Hongxing, Wu Guoqing, Liu Shuo, Niu Huan, Su Xiaoyun

Coal Geology & Exploration

Background Reflected in-seam wave detection represents a major method for exploring geological anomalies in underground coal mines. This method is well suited to detecting concealed structures (e.g., faults and collapse columns) within coal seams in the tunneling direction of roadways or along their side walls. In recent years, to meet the safety requirements of green mine construction, explosive sources have been substituted with mechanical hammer impacts in increasing reflected in-seam wave detection. However, compared to conventional explosive sources, hammer impacts exhibit significantly lower instantaneous energy intensity and consistency. These limitations lead to reduced quality of reflected in-seam wave imaging, thus …

A Seismic Prediction Technology For Coalbed Methane Sweet Spots And Its Engineering Application In The Ordos Basin, Zhang Mengbo, Li Fei, Zhang Dong, Peng Jiankang, Cui Xiaojie, Ni Na, Long Shengfang, Tao Yu, Zhu Jun

Coal Geology & Exploration

Objective Deep coalbed methane (CBM) reservoirs tend to exhibit significant tuning effects of thin interbeds, leading to challenging localization of actual coal seam boundaries, limited identification accuracy of micro-amplitude structures in the coal seam roof, and poor stability of the seismic responses of the reservoirs' gas-bearing properties. To address these challenges, this study investigated the No. 8 coal seam of the Benxi Formation in the Mizhi area, Ordos Basin. Accordingly, a method with the prediction of gas-bearing properties as the primary controlling factor was developed for the seismic prediction and comprehensive evaluation of CBM sweet spots. Methods First, the actual …

Information Literacy Through Open Pedagogy: What’S The Role Of Ai Tools?, Virginia Clinton-Lisell

Education, Health & Behavior Studies Faculty Publications

Student engagement in developing open educational resources (OER; openly licensed materials without fees to access) may be critically important for sustainable higher education and for developing important skills. There has been substantial debate about the use of generative artificial intelligence (GenAI) for the sustainability of OER, but little empirical inquiry. In this quasi-experimental study in the United States, two sections of college students (N = 113) collaborated with their instructor to improve the sources cited in an OER textbook. In one section, students only used traditional library databases to find suitable sources (traditional; n = 55). In another section, students …

Unveiling Cuo-Doped Mwcnts Incorporated Polycaprolactone As Effective Photocatalytic Nanomembranes For Sequestrating Toxic Dyes From Industrial Wastewater And Antibacterial Applications, Hesham Moustafa, Mohamed Mousa, Mohamed Morsy, Gotdon Price, Mohamed H. Hemida, Samah A. Mohamed, Ahmed Helal

Nanotechnology Research Centre

Organic dyes, such as methylene blue (MB), are widely used in the textile and dyestuff industries, which can be released into the environment as major dye pollutants in wastewater, thereby causing serious environmental hazards. The present research aimed to synthesize effective CuO-doped multi-walled carbon nanotubes (MWCNTs) and incorporated into a renewable polycaprolactone (PCL) polymer at varied dosages (i.e., 3, 7, and 10 wt%) to fabricate photocatalytic nanomembranes for toxic dye sequestration. XRD, SEM and FTIR analysis were employed to characterize the structure, morphology and composition of prepared nanoparticles and PCL nanomembranes. The mechanical properties and antibacterial performance of prepared nanomembranes …

2026 Final Unreclaimed Sites Quality Assurance Project Plan (Qapp), Pioneer Technical Services, Inc.

Silver Bow Creek/Butte Area Superfund Site

Unreclaimed sites exist within the Butte Priority Soils Operable Unit (BPSOU) that could pose a threat to human health or surface water quality due to the presence of historical mine waste. Although many source areas have been previously reclaimed, areas still exist in which soil has not yet been evaluated; such sites may provide a pathway for human exposure or impact surface water quality via stormwater runoff. These Unreclaimed sites will be evaluated in accordance with Appendix D, Attachment C, Section 8.0 of the BPSOU Consent Decree (referred to herein as CD) (EPA, 2020a).

This Quality Assurance Project Plan (QAPP) …

2026 Final Unreclaimed Sites Quality Assurance Project Plan (Qapp), Pioneer Technical Services, Inc.

Silver Bow Creek/Butte Area Superfund Site

Unreclaimed sites exist within the Butte Priority Soils Operable Unit (BPSOU) that could pose a threat to human health or surface water quality due to the presence of historical mine waste. Although many source areas have been previously reclaimed, areas still exist in which soil has not yet been evaluated; such sites may provide a pathway for human exposure or impact surface water quality via stormwater runoff. These Unreclaimed sites will be evaluated in accordance with Appendix D, Attachment C, Section 8.0 of the BPSOU Consent Decree (referred to herein as CD) (EPA, 2020a).

This Quality Assurance Project Plan (QAPP) …

Strategies To Enhance Employee Retention Among Leaders In The U.S. Poultry Processing Industry, Gary Dale Sisson

Walden Dissertations and Doctoral Studies

Employee turnover remains a persistent challenge in the U.S. poultry processing industry. Leaders in the U.S. poultry processing industry are concerned that high employee turnover increases operating costs, disrupts productivity, and contributes to workforce instability. Grounded in organizational support theory, this qualitative pragmatic inquiry research project explored successful strategies that leaders in the U.S. poultry processing industry use to enhance employee retention. The participants were six leaders from poultry processing facilities in the southeastern United States. Data were collected through semistructured interviews and supplemented with workplace observations and organizational records related to retention initiatives and turnover trends. Data were analyzed …

831sat: A Cubesat Subsystem Platform For Space Systems Development Education, Dominic S. Fucile, George Lordos, James Dingley, Kerri Cahoy, Paul Fucile

Small Satellite Conference

The CubeSat standard has become one of the most popular frameworks for co-curricular and extracurricular student satellite projects, yet its integration into formal curricula for space systems engineering remains limited.

Accessibility concerns:

• Students encountering satellite design for the first time face a learning curve when working with flight-representative hardware.
• Time constraints of undergraduate semesters limit the technical depth covered in a single course.
• Existing educational platforms often lack subsystem flexibility and fidelity needed to deliver an authentic systems engineering experience.

Presented is the 831Sat, a custom single board platform that provides core satellite subsystems:

• Central Processing Unit
• Electrical Power System …

Design And Implementation Of A Semi Automated Uhf Ground Station For Small Satellite Missions: A Case Study From India, Binoop Joseph, Vinayak Manoj, Thomas Francis, Madhav Vinod, Nikhil Jacob, Salih Majeed, Prajin I. R., Meghana Suresh, Salman Al Fariz K., Sijo George, Anish Chandra B. S., Anamika Kamath, Anjay Sudesh, Anurag Reghu, Aravind M. B., Manu Mohan, Ashfaque K. P., Amal Chandran

Small Satellite Conference

Mission success ultimately depends on reliable telecommand and telemetry links between spacecraft and Earth. For small satellites operating under tight power, size and link margin constraints, a technically robust and regulation compliant ground station is a mission critical enabler rather than an afterthought.

This poster presents a case study of a semi automated UHF ground station designed, built and commissioned by HEX20 in Thiruvananthapuram — one of the earliest privately owned and operated satellite ground stations in India — covering the hardware signal chain, the tracking and decoding software stack, integration and calibration, and the regulatory path to operation.

The Quantum Cubesat: A Perspective For Quantum Technology In Orbit, Natalie Pearson, Andrew Kelly, Curtis Talbot, Colin Aitken, Kevin Quillen, Sandy Provan

Small Satellite Conference

Motivation

The ability to measure, control and exploit quantum effects has shown significant potential to outperform classical devices across a variety of applications in computing, sensing and communication. However, quantum devices today typically depend equipment that is large, heavy, expensive and delicate. Bringing quantum capability to space requires a relentless focus on miniaturisation, ruggedisation and applicability. Focusing engineering efforts on the most promising technologies to realise their benefits in orbit is a crucial step in this process.

A Space-Native Metacloud For Autonomous Sense, Compute, And Communications, Pieter Van Duijn, Lucas Bremond

Small Satellite Conference

Poster presented at the 2026 Small Satellite Conference

Feasibility Of Failure-Resilient Swarm Formation Flying And Multi-Beam Coherent Apertures In 10000+ High-Density Satellite Swarms, Sumio Morioka

Small Satellite Conference

Direct-to-Device (D2D) communication links satellites directly to ground terminals without large antennas, supporting future Cyber-Physical Systems (CPS) and IoT. Our earlier work [1] showed that a formation of 10,000+ ultra-small satellites, as a coherent phased-array aperture, closes the D2D link budget. This study asks whether the formation can be operated within each satellite’s available power.

Lego®-Based Cubesats For Space Outreach, Stefan Brandle, Joshua Brown, Evan Smith, Drew Nye, Sydney Reddy, Twidy Kwae, Kaiya Grzesiak, Matthew Roderer, John Hetz

Small Satellite Conference

Taylor University Computer Science and Engineering is building a satellite having a LEGO®-robotics-based payload.

Mission Goals

• Have university students build a novel ELEO satellite
• Demonstrate viability of LEGO robotics electronics in space for short-term low-altitude missions
• Enhance space awareness by capturing the public's imagination through integral use of LEGO in an actual satellite
• Identify partners willing to provide advice and promote this project
• Create additional pathways for K-12 and university student participation in building satellites and satellite-related projects
• Support other space-education organizations through a high-visibility satellite project
• Continue space outreach efforts in the spirit of the ThinSat project
• ThinSat was …

Reacquiring Satellites After Unknown Maneuvers In Sensor Blind Spots: A Physics-Informed Behavioral Framework For Closed-Loop Custody Recovery, Naushad Rahman, Niha Agarwalla, Hardik Patel

Small Satellite Conference

Operational problem

After a maneuver during a sensor blind spot, a pre­-gap catalog state may no longer be operationally sufficient. A null look at GS2 must become evidence for where the object could be­ – and where to task next – before access expires.

Recap: A Study Of Downlink Optimization Methods Using Mms As A Template, Connor Firth, Conrad Schiff, Stephen Kreisler, Alexander Barrie

Small Satellite Conference

Motivations: MMS as a paradigm for downlink optimization

• MMS is a multi-agent mission requiring downlink optimization. ReCAP (Remote Coordination, Actuation, and Planning) assigns ground contacts using auctions.
• Five realistic downlink optimization cases are studied, and the amount of data downlinked is tracked to illustrate ReCAP’s ability to optimize for different criteria.
• ReCAP demonstrates value as a real-time, onboard downlink optimization tool.

University Ground-Station-As-A-Service: Promoting Space It Education And University Collaboration, Daniel Freburg, Will Lewis, Charles Edamala, Phoenix Alpine

Small Satellite Conference

Poster presented at the 2026 Small Satellite Conference

Validation Of Steering Law For A 4-Variable-Speed Single-Gimbal Control Moment Gyroscope Pyramid Cluster Via Spherical Air-Bearing Testbed, Kai Kuo Liao, Chih Ta Wu, Jen Hao Cheng, Po Hsun Yen, Shang Jung Lee

Small Satellite Conference

• VSCMG: wheel speed is commanded with gimbal rate — the extra DOF lets the cluster slide past singularities.
• HIL: a Helmholtz cage replays the on-orbit field and a solar simulator sets the Sun line.
• This work: HIL validation of a weighted-pseudoinverse steering law, 4-unit pyramid.

Publication Analysis Of Aslib Journal Of Information Management From 2016 To 2025, Sumit Karmahapatra, Akshaya Kumar Nayak

Library Philosophy and Practice (e-journal)

The current study presents a bibliometric analysis of the ASLIB Journal of Information Management (AJIM) from 2016 to 2025. Bibliographic data sourced from Scopus and VOSviewer was used for network visualization. 599 documents published in AJIM over the period were identified, with contributions from 1,749 authors residing in 69 countries and citations totalling 8,606. The output rate increased dramatically during the specified period, rising from 40 publications in 2016 to a peak of 140 in 2025. At the same time, the average citations per document (ACPD) over the specified period was estimated at 14.37, varying from 26.37 in 2018 to …

Nasa’S Ecostress Satellite Reveals Widespread Midday Depression In Ecosystem Evapotranspiration, Jingyi Bu, Jingfeng Xiao, Joshua B. Fisher, Yiqi Luo

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

Plants often exhibit a midday depression in water use (i.e., transpiration), reflecting a constraint on their ability to sustain maximum water transport, which may occur at the cost of reduced photosynthesis. Eddy covariance observations and geostationary satellites cannot quantify this widespread phenomenon globally while resolving fine-scale spatial variability. Using evapotranspiration measurements from the ECOsystem Spaceborne Thermal Radiometer Experiment on Space Station (ECOSTRESS) and machine learning, we quantify the global distribution of midday depression in evapotranspiration. Midday depression primarily occurs during peak-growing seasons in temperate zones and dry periods in the tropics, with a morning shift of the peak evapotranspiration time …

Evaluation Of Mechanical And Durability Performance Of Concrete With And Without Surface-Treated Plastic Fine Aggregates, Siva Ikkurthi, Qingli Dai

Michigan Tech Publications

Global plastic waste generation and excessive sand extraction are major environmental challenges, but replacing fine aggregate with plastic waste often degrades concrete performance. This work characterizes concrete incorporating recycled HDPE and PET fine aggregates at a 10% volumetric replacement level, with and without polymer-specific surface treatment, across fresh, mechanical, and durability properties. Untreated plastic aggregate generally lowered mechanical performance due to low polymer stiffness, weak plastic–paste bonding, and greater interfacial void formation. Surface treatment partially offsets these effects by strengthening the plastic–paste bond. H2O2-treated HDPE granules recovered the 28-day elastic modulus to within 3% of the control while also improving …

Optimizing Ball‐Milled Composites For Fast Energy Release Under Shock Compression, Siva Valluri, Edward Dreizin, Dana Dlott

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Microparticle additives containing both Al fuel and oxidizer, fabricated by arrested reactive milling (ARM), could potentially increase the power of energetic materials such as HMX because they contain premixed fuel and oxidizer. Optimizing shock reactivity requires exploring a vast parametric space encompassing composition, milling parameters that govern microstructural features such as intraparticle voids and fuel-oxidizer mixing, and the resulting inhomogeneous shock reactivity of individual particles. To present our approach, we used a model composition 8Al⋅3CuO, previously optimized for combustion. We milled powders and prescreened different prepared batches using differential scanning calorimetry (DSC) to rule out batches with significant pre-reaction. Then …

Probing The Capsid: Ph-Driven Gating At The Aav 5-Fold Pore And Its Role In Peptide Ligand Binding, Arianna Minzoni, Benjamin Bobay, Shriarjun Shastry, Eduardo Barbieri, Brandon Brino, Crystal Collazo, Shizuo Kamita, Danni Wang, Ciera Khuu, Alexander Polgar, Joseph Siino, Sushmita Koley, Peyton Russelburg, Mark Snyder, Christopher Belisle, Michael Daniele, Stefano Menegatti

Michigan Tech Publications

Background/Objectives: Adeno-associated virus (AAV) capsids undergo pH-dependent conformational gating at the 5-fold symmetry pore, but how these structural dynamics shape serotype-specific behavior and affinity-ligand recognition remains unclear, particularly for the clinically important serotypes AAV8 and AAV9. This study aimed to establish a pH-resolved structural framework linking 5-fold pore dynamics to peptide-ligand recognition and to translate this framework into sequence-based design principles for affinity capture of gene therapy vectors. Methods: AAV8 and AAV9 5-fold capsid assemblies were subjected to 500 ns molecular dynamics simulations under acidic (pH 5), neutral (pH 7), and basic (pH 9) conditions, with analysis of pore volume, …

Optimizing Heart Failure-Specific Disease Management Programs And Patient Care In Saudi Arabia: A Saudi Heart Association Position Statement, Abeer Bakhsh, Fakhr Al Ayoubi, Fayez Elshaer, Hanan B. Albackr, Hanin A. Bogari, Ibrahim Jelaidan, Ismail Raslan, Kamal Al Ghalayini, Maryam Alqaseer, Waleed Alhabeeb

Journal of the Saudi Heart Association

Background: Heart failure (HF) represents a major and growing health burden in Saudi Arabia, with high morbidity, frequent hospitalizations, and substantial system-level costs. Despite advances in guideline-directed medical therapy, gaps in diagnosis, care coordination, and longitudinal management persist. Structured, multidisciplinary heart failure–specific disease management programs (HF-DMPs) have been shown to improve outcomes and healthcare efficiency, yet their implementation remains inconsistent across the Kingdom.

Methods: The Saudi Heart Association (SHA) convened a multidisciplinary expert panel to develop a national position statement on HF-DMPs. Recommendations were formulated through structured consensus, informed by a comprehensive review of international guidelines, clinical trials, real-world evidence, …

Dynaband: Context-Aware Dynamic Band Selection For Onboard Hyperspectral Processing In Small Satellites, Rishigesh Jayananth, Brasen Sheeh

Small Satellite Conference

Hyperspectral small satellites now collect far more data than they can return to the ground. A single acquisition spans tens to hundreds of spectral bands, yet the downlink window on one pass carries only a fraction of it, so operators are forced to drop scenes, bin bands coarsely, or store data that never reaches the ground. Much of this waste is avoidable. When the task is known before the spacecraft images, whether to map water, monitor vegetation, or pick out a mineral signature, only a handful of bands actually carry the answer; the rest is paid for in downlink and …

Leveraging Persistent L-Band Leo-To-Geo Relays For The Orchestration Of High-Bandwidth Optical Inter-Satellite Links, Jonathan Maier, Skylar A. Cox

Small Satellite Conference

As the already tremendous demand for data transfer in Low Earth Orbit (LEO) grows, Free-Space Optical (FSO) communication has emerged as a critical capability due to high data rates and inherent resilience attributes. However, the operational complexity of FSO, specifically the Pointing, Acquisition, and Tracking (PAT) process, requires significant operational planning. The narrow beamwidth of optical terminals requires precise spatial coordination, resulting in latency during link establishment, heavy reliance on scheduled ground-based commanding, and an impediment to agile, responsive, and ad hoc operations.

This paper presents a novel orchestration architecture utilizing Viasat’s L-band space relay network as a persistent, always-on …