Digital Commons Network^™

Investigating Seepage In Rough Porous Media Fractures Using Fractional Brownian Motion Simulation, Liu Weitao, Kong Debin, Mao Qingfu, Zhao Jiyuan, Gu Yulong, Zhang Xiao

Coal Geology & Exploration

Background Natural rock fractures are often partially filled with permeable materials such as silt and minerals under long-term geological and hydraulic actions, forming complex structures containing unfilled voids. The seepage characteristics of such fractures significantly influence petroleum extraction, mine water prevention, and the stability of underground engineering projects. Methods To reveal the underlying seepage mechanisms, this study generated rough profiles of unfilled voids with different fractal dimensions based on Fractional Brownian Motion. A theoretical expression for the overall permeability of partially filled fractures was derived, and a coupled free flow–porous medium flow numerical model was established. This framework was used …

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 …

Staff Education To Improve Staff Knowledge Regarding Candida Auris, Nkechinyere Ejelonu

Walden Dissertations and Doctoral Studies

This Doctor of Nursing Practice project was a staff education project regarding Candida auris, a multidrug-resistant fungus recognized by the Centers for Disease Control and Prevention (CDC) as an urgent global health threat due to its high mortality, environmental persistence, and resistance to common disinfectants. Staff play a crucial role in infection prevention; however, limited awareness and inconsistent knowledge of Candida auris contribute to potential transmission in skilled nursing home settings. The project question was as follows: Among staff members in a skilled nursing facility, does an evidence-based educational intervention improve knowledge of Candida auris infection prevention as compared pre- …

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 …

Does Cardiopulmonary Bypass Influence Outcomes In Stage 2 Palliation? A Meta-Analysis And Systematic Review, Abdullah Almehandi, Yahya Ali, Adel Altarkait, Mohammad Alhajri, Abdulrahman O. Al-Naseem, Ahmed A. Jamjoom, Hamood Al Kindi, Saif Awlad Thani

Sultan Qaboos University Medical Journal

Objectives: The bidirectional Glenn (BDG) procedure, a key palliative intervention for single-ventricle physiology, is conventionally performed using cardiopulmonary bypass (CPB) despite its associated complications and costs. However, the comparative impact of CPB versus off-pump techniques on perioperative safety, neurological risk and long-term outcomes remains controversial. Therefore, this meta-analysis aimed to determine whether performing the BDG procedure without CPB improves perioperative outcomes (including morbidity, mortality, and neurological events), resource utilisation, and long-term survival compared to the conventional on-pump approach. Methods: This review systematically searched PubMed, EMBASE and Cochrane Central from inception until January 2025 for comparative randomised and observational studies reporting …

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 …

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 …

Valvular Heart Failure Is A Distinct Heart Transplant Phenotype With Comparable Adjusted Survival To Other Heart Failure Etiologies, Devon Kelley, Varun Kathawate, Joyce Ho, Andrew Belec, Takahiro Tashima, Kazuhiro Ueno, Jessica Dominic, Pavan Atluri

Division of Cardiology Faculty Papers

PURPOSE: Valvular heart failure (VHF) accounts for 1-5% of heart transplant listings. Comparative outcomes relative to other heart failure etiologies remain poorly characterized. This study defines the VHF phenotype and compares waitlist and transplant outcomes to other heart failure recipients.

METHODS: This retrospective cohort study uses the UNOS thoracic transplant database to analyze adult, first-time, heart-only listings with a diagnosis of heart disease. Patients were grouped by diagnosis as VHF or non-VHF. The primary outcome was waitlist events; post-transplant survival and outcomes were secondary analyses. Subgroup analysis was performed in the post-2018 allocation era.

RESULTS: VHF recipients were older (55.3 …

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.

Systems Progress Overview Of Rosisat: The Radiation Orbital Shielding Investigation Satellite, Chase Patterson, Jacob Blanton, Jayden Mcdonald, Kylie Nager, Colson Walker, Francisco Crespo Cutillas

Small Satellite Conference

Exposure to space weather in the Low Earth Orbit (LEO) space weather environment poses significant challenges to both the integrity and longevity of orbital hardware, as well as the health of astronauts, driving the necessity for improved means of radiation shielding for future manned and unmanned missions. With a 1U CubeSat formfactor, ROSISat is a planned LEO mission that aims to characterize the radiation shielding capabilities of seven candidate materials. By comparing the shielding performance of each composite and constituent material, ROSISat will place a specific focus on correlating how molecular structure influences radiation shielding. Further, current simulations lack the …

Experimental Investigation Of "Structured Radio Wave" Propagation Using A Deployable Parabolic Reflector With A Uniform Circular Array, Makoto Ito, Tsukasa Funane, Yosuke Tanabe, Miki Yonehara, Hisatoshi Kimura, Keigo Nakamura, Yasuyuki Miyazaki, Satoshi Ikari, Shinichi Nakasuka, Ayako Torisaka, Koichi Watanabe

Small Satellite Conference

Poster presented at the 2026 Small Satellite Conference

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.

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.

A Comprehensive Review Of Perovskite Materials For Electronic Device Applications, Md Abdul Kuddus Sheikh, Md Shazarul Islam, Daniel Drane, Hasina Huq

Electrical and Computer Engineering Faculty Publications

Perovskite materials have gained remarkable attention as promising candidates for next-generation electronic and optoelectronic devices owing to their outstanding optical absorption, high carrier mobility, tunable bandgap, and cost-effective fabrication. This review explores the recent progress and future potential of perovskite materials across different categories, including organic-inorganic hybrid perovskites, oxide perovskites, and all-inorganic perovskites, emphasizing their structural diversity and electronic tunability. Special consideration is given to various dimensional perovskites (3D, 2D, 1D, and 0D), where reduced dimensionality provides enhanced stability and unique quantum confinement effects advantageous for device performance. The rapid development of lead-free perovskites is also discussed as an environmentally …

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 …

Studying What Matters: South Texas Community-Driven Dementia Research Priorities, Sara S. Masoud, Juana Escareño, Belinda Flores, Byeong Yeob Choi, Karla Daniela Lopez Lorenzo, Shanae L. Rhodes, Quetzaly Zenil, Carole L. White

School of Medicine Publications

South Texas has among the highest dementia prevalence rates in the United States, yet communities in the region remain consistently underrepresented in dementia research. Aligning research studies with what matters to communities most impacted by dementia is critical in addressing the crisis of research exclusion. This participatory study sought to identify community-driven dementia research priorities grounded in the experiences and needs of South Texas residents impacted by dementia. A two-year community-engaged study was conducted in partnership with a Community Council composed of individuals living with dementia, family caregivers, community health workers, and community-serving professionals. A plática program model was co-developed …

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 …

Spartan Daily, August 25, 2026, San Jose State University, School Of Journalism And Mass Communications

Spartan Daily, 2026

Volume 167, Issue 02

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, …

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 …

Evaluating Performance Of Hardware-Accelerated Vessel Detection Algorithms, Michael Tietz, John Warner, Quinton Davidson, Douglas Carssow

Small Satellite Conference

Earth observing satellites contribute to the monitoring of maritime activity by enabling large-scale coverage of open water. For example, spacecraft data can be used to monitor and combat Illegal, Unreported, and Unregulated (IUU) fishing that occurs in coastal and international waters across the globe. However, information latencies limit the utility of space-based sensors for operational users who need real-time situational awareness. These limitations are especially pronounced for small spacecraft with limited power generation and downlink capabilities. In recent years, the devices and tools that enable edge computing and near real-time downlink from small spacecraft have improved substantially. Equipped with these …

Metadata-Conditioned Dark-Frame Modelling And Hsdr-Scanfusion Denoising: A Physics-Informed Independent Tool For Low-Cost Hyperspectral Small-Satellite Calibration, Nooh Adnan, Kyaw Thiha, Raffael Gil Dela Cruz, Li Cheng Zheng, Faijul Amin, Areeba Khan, Sameha Tasnim, Sung Jegal, Yunhan Bao, Iliya Shofman

Small Satellite Conference

Hyperspectral imaging in the shortwave-infrared spectrum is valuable for orbital Earth observation, but its use on low-cost, resource-constrained small satellites is limited by thermally dependent dark current, fixed-pattern noise, and intermittent access to matched calibration frames. Traditional mitigation through active cooling, shutters, or frequent dark-frame acquisition can be difficult to accommodate within small-satellite mass, power, volume, and operations budgets. This paper presents a physics-informed independent calibration tool that reconstructs condition-matched dark response from acquisition metadata rather than relying on hardware-heavy calibration at every operating point. The framework combines a stochastic dark-noise simulator, a metadata-conditioned neural dark operator that predicts spectral-spatial …