Digital Commons Network^™

Analysis Of Coal Seam Water Sources Based On Hydrochemistry And Water Isotopes, Wei Dong, Wang Hao, Wang Chungang, Wang Xiaodong, Liu Wei, Wang Qiangmin, Liu Quanhui, Zhou Zhenfang, Wang Yutong

Coal Geology & Exploration

Background The northern Yuheng mining area exhibits the widespread occurrence of water-bearing coal seams. This unique hydrogeological phenomenon poses a serious challenge to efficient mine roadway construction and safe coal mining in the mining area. The recharge sources of the coal seam water remain poorly understood, representing a primary bottleneck in the prevention and control of coal seam water hazards. Methods This study aims to reveal the recharge sources and evolutionary mechanisms of coal seam water in the northern Yuheng mining area. By integrating methods including hydrochemical analysis, isotope analysis, and inverse hydrogeochemical simulation, this study systematically investigated the hydrogeochemical …

Technologies And Typical Cases For The Prevention And Control Of Water Hazards Associated With Burnt Rocks In The Yushenfu Mining Area, Wang Shidong, Wang Hai, Ji Zhongkui, Zhu Kaipeng, Han Qiang, Xue Xiaoyuan, Chen Pan, Zhao Kaixing

Coal Geology & Exploration

Background Brunt rocks are widely distributed in the Yushenfu mining area, predominantly occurring along rivers and gullies. These rocks are characterized by well-developed pores and fractures and weak to extremely strong water-yielding capacity, posing serious threats to roadway tunneling and mining for coal in the same layer or underlying them. Methods This study aims to effectively prevent and control water hazards associated with burnt rocks and reduce their threat. Through field surveys, statistical analysis, field experiments, and exemplary applications, along with exploration and monitoring and related analyses, this study analyzed the distribution of burnt rocks in the Yushenfu mining area …

Progress And Prospects Of Geothermal Resource Monitoring Technology, Hao Wenjie, Li Shengtao, Wang Huang, Liu Donglin, Wang Wanli, Qin Junsheng, Jin Xianpeng, Shen Jian, Liu Shuai, Yao Yahui, Hao Shuli, Ren Tao, Liu Zhe, Meng Xianwei, Hou Deren, Ren Xiaoqing, Jia Xiaofeng, Wen Dongguang

Coal Geology & Exploration

Background Geothermal resources represent a renewable energy source characterized by abundant reserves, extensive distribution, high stability and reliability, and green and low-carbon attributes. China has led the world in the direct utilization of geothermal energy for many years. Geothermal resource monitoring, which lays the groundwork for geothermal exploration, exploitation, and utilization, provides critical data required to determine dynamic changes in geothermal reservoirs and their surrounding geological environments, ensure long-term sustainable geothermal exploitation and utilization, and achieve the refined management and protection of geothermal resources. Advances In the narrow sense, geothermal resource monitoring technology is primarily applied to individual wells. In …

Multi-Objective Optimization And Performance Investigation Of Cementing Materials With High Thermal Conductivity Based On Response Surface Methodology, Zhao Yongzhe, Li Wenhao, Wang Yijie, Han Yongliang

Coal Geology & Exploration

Objective Geothermal energy has emerged as a strategic clean energy for the low-carbon transformation of the world's energy mix. Correspondingly, its efficient exploitation and utilization are crucial to the early achievement of the goals of peak carbon dioxide emissions and carbon neutrality. For geothermal resource exploitation, the thermal conductivity of cementing structures determines the efficiency of heat transfer from strata to geothermal well casings, establishing it as a key factor influencing the efficiency of geothermal energy extraction. Therefore, the research and development of cementing materials with high thermal conductivity can provide robust support for efficient geothermal resource exploitation.Methods The …

Key Technologies For Artificial Intelligence-Based Inversion Of The Borehole Transient Electromagnetic Method In Coal Mining Areas, Fan Tao, Hao Yue, Zhang Peng, Li Ping, Zhao Zhao, Zhao Rui, Liu Qiang, Yan Junsheng, Song Xianzhe, Liu Borui, Chen Changyuan, Li Bo

Coal Geology & Exploration

Background Using directional boreholes, the borehole transient electromagnetic (TEM) method enables near-field excitation and the simultaneous reception of three components within a borehole. This method can effectively avoid interference from ferromagnetic materials in roadways, thereby significantly enhancing the detection accuracy and range. Therefore, this method is widely applied to the detection of underground concealed water hazards in coal mines. However, there is a conflict between the accuracy and efficiency of current inversion methods for borehole TEM data, and existing technologies are insufficient to simultaneously meet the demands for high efficiency and high precision in the detection of concealed water hazards. …

Development And Prospects Of Underground Intelligent Drilling Rigs For Coal Mines, Yao Ningping, Li Quanxin, Lu Qianhai, Peng Guangyu, Zhang Gang, Zhang Youzhen

Coal Geology & Exploration

Background In coal mines, underground intelligent drilling rigs serve as critical equipment for gas extraction and water hazard prevention and control. With increasing mining depth, extreme operating conditions, including elevated gas concentration and high in situ stress, pose challenges to conventional drilling modes. Progress This study presents a systematic review of the evolutionary history of intelligent drilling rigs in China from the 13th to the 14th Five-Year Plan, dividing it into three stages: semi-automated operation, whole-process automated operation, and initial intelligent drilling. In the semi-automated operation stage, technologies for remote control within a viewing distance and automatic loading and unloading …

Impact Of Anatomical Changes On Treatment Plan Robustness: A Comparative Study Of Intensity Modulated Proton Therapy And Volumetric Modulated Arc Therapy In Head And Neck Cancer., Jennifer Croft

Masters Projects

Head and neck cancer patients often experience anatomical changes during radiation therapy, including weight loss and tumor regression. These changes can alter planned dose distribution and affect treatment accuracy. Based on the previous understanding, IMPT offers highly conformal dose delivery but is sensitive to the patient’s geometry changes and daily setup uncertainties, while VMAT may provide greater stability under these uncertainties. However, as of today, there is no quantitative analysis and comparison between the two modalities using real clinical data. The purpose of this study is to compare the robustness of IMPT and VMAT for head and neck cancer by …

Real-World Outcomes Of Dedicated Leaflet Modification For Bioprosthetic Valve-In-Valve Tavr: A 150-Patient Commercial Experience., Raj R Makkar, Aakriti Gupta, Ignacio Inglessis, Curtiss T Stinis, Pradeep K Yadav, Vinod H Thourani, Stanley J Chetcuti, Matthew Summers, Vivek Patel, Bassem M Chehab, Apurva Patel, Gilbert H L Tang, Sahil Khera, Michael Rinaldi, Trevor Simard, Jeffrey Southard, Benjamin R Stripe, Brian Whisenant, Keith Allen, Yoseph Rozenman, Danny Dvir, Carlos E Sanchez, Jeffrey Popma, Martin B Leon, Philippe Généreux

Heart and Vascular Articles

BACKGROUND: Coronary obstruction during valve-in-valve (ViV) transcatheter aortic valve replacement (TAVR) is infrequent but catastrophic. Mechanical splitting of bioprosthetic leaflets may mitigate this risk, but real-world experience remains limited.

OBJECTIVES: The aim of this is to evaluate procedural performance and in-hospital outcomes of a dedicated mechanical leaflet-splitting device in ViV TAVR.

METHODS: Consecutive postapproval cases were performed at 28 centers from February to November 2025. Patients were selected for elevated risk based on preprocedural computed tomography criteria, including virtual valve-to-coronary distance ≤4 mm and/or virtual valve-to-sinotubular junction distance ≤3 mm. Procedural outcomes were assessed among patients in whom splitting was …

Neutrosemigroups Generated By Upside-Down Logic, Aykut Emniyet, Memet S¸Ahin

Neutrosophic Sets and Systems

No abstract provided.

An Approach To Bilevel Multi-Objective Linear Fractional Probabilistic Optimization In Neutrosophic Environments With Applications, Agegnehu Tesfaye Janka, Demmelash Mollalign Moges, Berhanu Guta Wordofa

Neutrosophic Sets and Systems

No abstract provided.

The Domain Of A Neutrosophic Metric Spaces Of Tribonacci Matrix Defined By Triple Sequence Spaces, Kavipriya Arumugam, Srikanth Raghavendran, Subramanian Nagarajan

Neutrosophic Sets and Systems

No abstract provided.

Neutrosophic Temperaments And Personality Evolution: A Conceptual Framework Of Evolution, Indeterminacy And Involution, Akbar Jadidi Mohammadabadi, Akbar Rezaei, Florentin Smarandache

Neutrosophic Sets and Systems

No abstract provided.

Neutrosophic N-Structures On Sheffer Stroke Bg-Algebras, Tahsin Oner, Neelamegarajan Rajesh, Akbar Rezaei, Ibrahim Senturk

Neutrosophic Sets and Systems

No abstract provided.

A Customer-Driven Supplier Evaluation Model Under Indeterminacy For Customizated Production, Çağrı Kuram, Özge Nalan Bi̇li̇şi̇k

Neutrosophic Sets and Systems

No abstract provided.

A Linguistic Neutrosophic Topsis Framework For Sustainable Biomass Composite Selection, Kathirvel Ayyaswamy, Rajendra Thilahar Chelladurai, Gobinath Vellapalayam Manoharan

Neutrosophic Sets and Systems

No abstract provided.

(T, I, N, F) Neutrosophic Weak And Strong Paraconsistency And The Epistemics Of Artificial Intelligence: Uncertainty, Pluralism, And The Decolonial Turn In Alignment, Florentin Smarandache, Maikel Y. Leyva-Vázquez

Neutrosophic Sets and Systems

No abstract provided.

Foundations Of Neutrosophic N-Semirings Theory And Structural Properties, Raja Muhammad Hashim, Muhammad Gulistan, Muhammad Shahzad

Neutrosophic Sets and Systems

No abstract provided.

The Percentage Fallacy And A Single-Valued Neutrosophic Framework For Indeterminacy In Ai Detector Verdicts On Academic Authorship, Oscar Caicedo-Camposano, Mayra Jara-Sen San, César Caicedo-Camposano, Ariana Cruz-Posligua, Maikel Leyva-Vázquez

Neutrosophic Sets and Systems

No abstract provided.

Neutrosophic-Based Optimization Algorithm: A Novel Metaheuristic Algorithm For Global Optimization, Sara Hasan, Reda Ahmed

Neutrosophic Sets and Systems

No abstract provided.

Neutrosophic Selective Separability, Giorgio Nordo, Lorenzo Aff`, Florentin Smarandache

Neutrosophic Sets and Systems

No abstract provided.

Plithogenic Quasigroups With Application To Decision Making, Anthony Oyem, Ewaen Kelly Osawaru

Neutrosophic Sets and Systems

No abstract provided.

One Hundred Volumes Of Neutrosophic Sets And Systems: A Bibliometric Retrospective And A Neutrosophic Framework For Dispersed Citation Evidence (2013–2026), Said Broumi, Florentin Smarandache, Mohamed Abdelbaset, Maikel Leyva-Vázquez

Neutrosophic Sets and Systems

No abstract provided.

Envelope Geometry And Information Refinement Of (T,I,N,F) Neutrosophic Quadruples, Mukhtar Ahmad

Neutrosophic Sets and Systems

No abstract provided.

Tinf-Consensus For Multi-Annotator Learning: Separating Neutral Responses From Polarized Disagreement, Mukhtar Ahmad

Neutrosophic Sets and Systems

No abstract provided.

N-Break: A Neutrosophic Task-Breakpoint Reasoning System For Assessing Functional Ability Of Persons With Disabilities Under Uncertainty, Ehab Abdel Aziz Al-Beblawi, Mirna Samy, Abduallah Gamal

Neutrosophic Sets and Systems

No abstract provided.

N-Evichain: A Neutrosophic Twofold Evidence-Chain Reasoning System For Legal Fact Support Assessment Under Uncertainty, Shimaa Abdelghany Attalla, Nada Hesham, Abduallah Gamal

Neutrosophic Sets and Systems

No abstract provided.

Neutrosophic Sets And Systems, Vol. 100, 2026, Florentin Smarandache, Mohamed Abdel-Basset, Maikel. Leyva Vazquez

Neutrosophic Sets and Systems

No abstract provided.

Feedback Literacy In Colombian High School Students: A Phenomenological Approach, Maria Eugenia Cárdenas, Marcela Valencia Serrano

The Qualitative Report

This study aimed to understand 11^th-grade students' experiences with feedback during the first thematic unit of the mathematics class. It was based on the theoretical model of feedback literacy and used a transcendental-phenomenological design to fulfill its purpose. The participants were seven students from a private school in Cali, Colombia. These students were in the first unit of the mathematics class and interviewed in depth. The data analysis had several phases: epoche, horizontalization and units of meaning, textural and structural description, and composite description. We found that students' relation to feedback was characterized by a predominantly passive-receptive role …

Discourse In Youth Organizations Functioning In Poland: Constructing A Platform For Dialogue, Magdalena Cuprjak, Celina Czech-Włodarczyk

The Qualitative Report

Our research explores the degree to which youth organizations serve as platforms for open dialogue and examines how their discourse aligns with established principles of dialogism, as articulated by van Dijk (2001), Bakhtin (1982), and the 'authentic turn' concept proposed by Ostrowska (2017). In conducting this study, we anticipated finding variability in communication styles, expecting that some organizations—particularly those affiliated with the Polish Council of Youth Organizations (PROM)—would promote more inclusive, dialogic interactions. Conversely, we suspected that groups outside PROM, especially nationalist organizations like the All-Polish Youth, might display more exclusionary or ideologically driven messaging. Our expectations were rooted in …

Determination Of Latitude And Longitude Using Solar Radiation Simulation, Atif Idrees, Naeem Sadiq, Syed A. Hassan

Makara Journal of Science

Solar radiation is an important energy source needed by the Earth and its inhabitants. Solar radiation is divided into three components: direct beam solar radiation (BSR), diffuse solar radiation (DSR), and global solar radiation (GSR). The solar flux received at different locations on Earth depends on geographic coordinates, particularly latitude and longitude, as well as the reference meridian used for solar time calculations. In this study, we developed a solar radiation simulator in a spreadsheet incorporating spin buttons. The simulator can simulate all three types of solar radiation. The spin buttons control and vary the values of latitude and longitude …