Search Results - "COAL sampling"

Natural radioactivity and dose assessment in coal samples collected from Sulaymaniyah city in Iraqi Kurdistan region.

Authors: Abdullah, Kamal Omer¹ (AUTHOR) kamal.abdullah@univsul.edu.iq

Source: Acta Geophysica. Aug2025, Vol. 73 Issue 4, p3425-3430. 6p.

Subject Terms: *NATURAL radioactivity, *COAL sampling, *CITY promotion, *RADIOISOTOPES, *GERMANIUM

Research on the impact of borehole parameters on the instability and precursor characteristics of large diameter borehole in coal seam.

Authors: Shao, Caijun Liu, Guangjian Zhou, Jincheng et al.

Source: Scientific Reports. 4/27/2025, Vol. 15 Issue 1, p1-20. 20p.

Subject Terms: *COAL sampling, *STRESS concentration, *FAILURE mode & effects analysis, *CRACK propagation, *BOREHOLES, *ACOUSTIC emission

A novel experimental study on impact tendency of real time borehole coal samples under lateral constrained compression.

Authors: Ma, Ji Liu, Dongsheng Yang, Ming et al.

Source: Scientific Reports. 4/19/2025, Vol. 15 Issue 1, p1-16. 16p.

Subject Terms: *COAL sampling, *LATERAL loads, *COAL mining, *FAILURE mode & effects analysis, *COAL

STUDY ON THE OPTIMIZATION OF THE IN-SITU GAS PRESSURE CALCULATION METHOD FOR COAL SAMPLES CONTAINING WATER.

Authors: Zhi-Peng WANG Jie SONG Geng-Xin YANG et al.

Source: Thermal Science. 2025, Vol. 29 Issue 2B, p1435-1441. 7p.

Subject Terms: *ATTENUATION coefficients, *COAL sampling, *ADSORPTION capacity, *PRESSURE measurement, *WATER sampling

IN-SITU GAS PRESSURE CALCULATION PRINCIPLE OF PRESSURE-MAINTAINING COAL SAMPLES AND EXPERIMENTAL VERIFICATION IN DEEP COAL SEAMS.

Authors: Ming-Zhong GAO Yong-Cheng LI Jie SONG et al.

Source: Thermal Science. 2025, Vol. 29 Issue 2B, p1159-1165. 7p.

Subject Terms: *COALBED methane, *COAL sampling, *COAL, *DESORPTION, *EQUILIBRIUM

Bubbling fluidized bed and oven drying for Turkish coal: a comparative study.

Authors: Delibalta, Mahmut Suat¹ (AUTHOR) msdelibalta@ohu.edu.tr

Source: International Journal of Coal Preparation & Utilization. 2025, Vol. 45 Issue 2, p296-310. 15p.

Subject Terms: *COAL sampling, *COAL, *MOISTURE, *HUMIDITY, *CALORIE

Comparative Analysis and Improvement of CT Scanning 3D Reconstruction Methods for Coal Samples: Comparative Analysis and Improvement of CT Scanning: X. Li et al.

Authors: Li, Xiangchun Song, Haonan Shi, Yaoyu et al.

Source: Pure & Applied Geophysics. Feb2025, Vol. 182 Issue 2, p685-704. 20p.

Subject Terms: *COAL sampling, *COMPUTED tomography, *IMAGE processing, *COAL, *INTERPOLATION

Methane release and energy evolution in coal and its implication for gas outburst.

Authors: Li, Xiangchun Si, Xiaopeng Li, Xiaowei et al.

Source: Physics of Fluids. Feb2025, Vol. 37 Issue 2, p1-14. 14p.

Subject Terms: *COAL mining safety, *COAL sampling, *TEMPERATURE measurements, *POTENTIAL energy, *SYSTEM analysis

Thermal behavior and evolved gas analysis for pyrolysis of olive pomace, coal, and their blends using TGA/FTIR.

Authors: MERDUN, Hasan YAHYAOUI, Balkis

Source: Journal of Thermal Engineering. Jan2025, Vol. 11 Issue 1, p112-126. 15p.

Subject Terms: *GAS analysis, *COAL sampling, *INDUSTRIAL design, *COAL, *THERMOGRAVIMETRY

Effects of different water-based fracturing fluids on mechanical properties and energy evolution of deep coal under true triaxial loading.

Authors: Hu, Huarui Wang, Zepeng Wang, Mengting et al.

Source: Physics of Fluids. Jan2025, Vol. 37 Issue 1, p1-12. 12p.

Subject Terms: *FRACTURING fluids, *COAL sampling, *STRAIN energy, *ENERGY dissipation, *PROPERTIES of fluids

Characteristics of Electric–Seismic Signals of the Static Load Failure of Water Injection Coal Seam Samples.

Authors: Li, Zhenfei Wang, Jiajian Li, Chengwu et al.

Source: Natural Resources Research; Dec2025, Vol. 34 Issue 6, p3193-3216, 24p

Subject Terms: FLUID injection, ELECTROMAGNETIC measurements, DAMAGE models, CYCLIC loads, SEISMIC waves, PRESSURE sensors, MECHANICAL loads, COAL sampling

Study on fracture of coal samples with different fracture angles under microbial environment.

Authors: Wang, Wen Song, Yuxiang Xia, Daping et al.

Source: PLoS ONE; 11/6/2025, Vol. 20 Issue 11, p1-27, 27p

Subject Terms: FRACTURE toughness, FRACTURE mechanics, COAL sampling, ROCK deformation, METHANOGENS, PERMEABILITY, MICROBIAL ecology

Online CO Monitoring During Low Temperature Oxidation of Zonguldak Coals.

Authors: Bilen, Mehmet

Source: Combustion Science & Technology; 2025, Vol. 197 Issue 15, p4011-4029, 19p

Subject Terms: CARBON monoxide detectors, SPONTANEOUS combustion, GAS chromatography, COAL, OXIDATION, COAL sampling, ATMOSPHERIC temperature, STATISTICAL correlation

Geographic Terms: ZONGULDAK (Turkey)

Calibration and application of a large-scale LIBS project based on transfer learning in the online quantitative analysis of coal.

Authors: Li, An Zhang, Xinyu Liu, Xiaodong et al.

Source: JAAS (Journal of Analytical Atomic Spectrometry); Nov2025, Vol. 40 Issue 11, p3274-3279, 6p

Subject Terms: CALIBRATION, QUALITY control, REAL-time computing, PROCESS optimization, LASER-induced breakdown spectroscopy, COAL sampling, KNOWLEDGE transfer

Multifractal classification of rock cores based on mercury intrusion experiments.

Authors: Wu, Jinsui Li, Ying Ji, Ping et al.

Source: Scientific Reports; 10/7/2025, Vol. 15 Issue 1, p1-16, 16p

Subject Terms: MULTIFRACTALS, PERMEABILITY, COAL sampling, POROSITY

Geographic Terms: CHINA

颗粒煤的破碎比功及其在压缩破碎过程中 的能量转移特征研究. (Chinese)

Alternate Title: Research on the crushing specific work of particle coal and its energy transfer law during compression crushing process. (English)

Authors: 袁亮 涂庆毅 赵祖恒 et al.

Source: Journal of Mining Science & Technology / Kuangye Kexue Xuebao; Oct2025, Vol. 10 Issue 5, p785-796, 12p

Subject Terms: COAL, ENERGY transfer, SIZE reduction of materials, HAZARDS, COAL sampling, CRACK propagation, COMPUTER simulation

Refinement of the flotation reagent plan based on coal feed ash content.

Authors: Bakhshiyan, Fatemeh Behnamfard, Ali Alidokht, Mehdi

Source: International Journal of Mining & Geo-Engineering. Dec2024, Vol. 58 Issue 4, p359-370. 12p.

Subject Terms: *FLOTATION reagents, *COAL sampling, *FLAMMABLE materials, *METHANOL, *PINE oil

Self-Heating Risk of Coals and Metal Powders: A Comparison.

Authors: Taraba, Boleslav Maršálek, Roman

Source: Fire (2571-6255). Nov2024, Vol. 7 Issue 11, p378. 8p.

Subject Terms: *COAL sampling, *COAL, *OXIDATION, *METALS, *CALORIMETRY

Beneficiation of High Sulfur Tertiary Coal of Assam with Burkholderia sp. GR 8-02. An Eco-Friendly Approach Toward Clean Coal Production.

Authors: Kumar, Aniruddha Singh, Asha Lata Rajak, Pramod K. et al.

Source: Geomicrobiology Journal. Nov2024, Vol. 41 Issue 10, p996-1007. 12p.

Subject Terms: *FOURIER transform infrared spectroscopy, *COAL sampling, *MOLECULAR structure, *GREEN business, *DIFFRACTION patterns

Flotation behavior and kinetic characteristics of trace elements in coal.

Authors: Liu, Cheng Long, Xin Cao, Shanshan et al.

Source: International Journal of Coal Preparation & Utilization. 2024, Vol. 44 Issue 11, p1828-1842. 15p.

Subject Terms: *COAL preparation, *COAL sampling, *FLOTATION, *COAL