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Showing results for coal cutter; under cutter. Search instead for coal cutter【矿】;undercutter【矿】 (0)

Select item 103078291.

The mechanism and performance of rock breakage by undercutting disc cutter with advanced slotting

Hongxiang Jiang, Xiaodi Zhang, Huihe Zhao, Zenghui Liu, Yongxin Wang

Sci Rep. 2023; 13: 10474. Published online 2023 Jun 28. doi: 10.1038/s41598-023-37576-1

PMCID:: PMC10307829

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Select item 87790162.

Pose Determination of the Disc Cutter Holder of Shield Machine Based on Monocular Vision

Dandan Peng, Guoli Zhu, Dailin Zhang, Zhe Xie, Rui Liu, Jinlong Hu, Yang Liu

Sensors (Basel) 2022 Jan; 22(2): 467. Published online 2022 Jan 8. doi: 10.3390/s22020467

PMCID:: PMC8779016

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Select item 104134763.

Research on Directional Hydraulic Coal Cutting and Outburst Prevention Technology in Soft and Hard Composite Coal Seams

Kang An, Songwei Shan, Yanfei Zhong, Haidong Chen, Guangwei Xu, Xiangjun Chen, Zhaofeng Wang

ACS Omega. 2023 Aug 8; 8(31): 28553–28562. Published online 2023 Jul 26. doi: 10.1021/acsomega.3c02945

PMCID:: PMC10413476

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Select item 50326024.

Proceedings of the 13th annual conference of INEBRIA

Rod Watson, James Morris, John Isitt, Pablo Barrio, Lluisa Ortega, Antoni Gual, Kenneth Conner, Tracy Stecker, Stephen Maisto, Sophie Paroz, Caroline Graap, Véronique S Grazioli, Jean-Bernard Daeppen, Susan E Collins, Nicolas Bertholet, Jennifer McNeely, Vlad Kushnir, John A. Cunningham, Iain K Crombie, Kathryn B Cunningham, Linda Irvine, Brian Williams, Falko F Sniehotta, John Norrie, Ambrose Melson, Claire Jones, Andrew Briggs, Peter Rice, Marcus Achison, Andrew McKenzie, Elena Dimova, Peter W Slane, Véronique S. Grazioli, Susan E. Collins, Sophie Paroz, Caroline Graap, Jean-Bernard Daeppen, Stéphanie Baggio, Marc Dupuis, Joseph Studer, Gerhard Gmel, Molly Magill, Véronique S. Grazioli, Robert J. Tait, Lucinda Teoh, Erin Kelty, Elizabeth Geelhoed, David Mountain, Gary K. Hulse, Elina Renko, Shannon G. Mitchell, David Lounsbury, Zhi Li, Robert P. Schwartz, Jan Gryczynski, Arethusa S. Kirk, Marla Oros, Colleen Hosler, Kristi Dusek, Barry S. Brown, Deborah S. Finnell, Aisha Holloway, Li-Tzy Wu, Geetha Subramaniam, Gaurav Sharma, Sara Wallhed Finn, Sven Andreasson, Robert D. Dvorak, Matthew P. Kramer, Brittany L. Stevenson, Emily M. Sargent, Tess M. Kilwein, Sion K. Harris, Lon Sherritt, Sarah Copelas, John R. Knight, The Partnership for Adolescent Substance Use Research, Noreen D Mdege, Jim McCambridge, Gallus Bischof, Anja Bischof, Jennis Freyer-Adam, Hans-Juergen Rumpf, Niamh Fitzgerald, Lisa Schölin, Paul Toner, Jan R. Böhnke, Laura J. Veach, Olivia Currin, Leigh Z. Dongre, Preston R. Miller, Elizabeth White, Emily C. Williams, Gwen T. Lapham, Jennifer J. Bobb, Anna D. Rubinsky, Sheryl L. Catz, Susan Shortreed, Kara M. Bensley, Katharine A. Bradley, Joanna Milward, Paolo Deluca, Zarnie Khadjesari, Rod Watson, Stephanie Fincham-Campbell, Colin Drummond, Kathryn Angus, Linda Bauld, Sophie Baumann, Katja Haberecht, Inga Schnuerer, Christian Meyer, Hans-Jürgen Rumpf, Ulrich John, Beate Gaertner, Marion Barrault-Couchouron, Marion Béracochéa, Vincent Allafort, Valérie Barthélémy, Hervé Bonnefoi, Emmanuel Bussières, Véronique Garguil, Marc Auriacombe, Marianne Saint-Jacques, Michel Dorval, Katia M’Bailara, Lidia Segura-Garcia, Nuria Ibañez-Martinez, Juan Manuel Mendive-Arbeloa, Manel Anoro-Perminger, Pako Diaz-Gallego, Mª Angeles Piñar-Mateos, Joan Colom-Farran, Marianthi Deligianni, Bertrand Yersin, Angeline Adam, Constance Weisner, Felicia Chi, Wendy Lu, Stacy Sterling, Kevin L. Kraemer, Kathleen A. McGinnis, David A. Fiellin, Melissa Skanderson, Adam J. Gordon, Jonathan Robbins, Susan Zickmund, P. Todd Korthuis, E. Jennifer Edelman, Nathan B. Hansen, Christopher J. Cutter, James Dziura, Lynn E. Fiellin, Patrick G. O’Connor, Stephen A. Maisto, Roger Bedimo, Cynthia Gilbert, Vincent C. Marconi, David Rimland, Maria Rodriguez-Barradas, Michael Simberkoff, Amy C. Justice, Kendall J. Bryant, Anne H Berman, Gillian W Shorter, Jeremy W Bray, Carolina Barbosa, Magnus Johansson, Reid Hester, William Campbell, Maria Lucia O. Souza Formigoni, André Luzi Monezi Andrade, Laisa Marcorela Andreoli Sartes, Christopher Sundström, Niels Eék, Martin Kraepelien, Viktor Kaldo, Claudia Fahlke, Lynn Hernandez, Sara J. Becker, Richard N. Jones, Hannah R. Graves, Anthony Spirito, Silke Diestelkamp, Lutz Wartberg, Nicolas Arnaud, Rainer Thomasius, Jacques Gaume, Véronique Grazioli, Cristiana Fortini, Zelra Malan, Bob Mash, Katherine Everett-Murphy, Véronique S. Grazioli, Joseph Studer, M. Mohler-Kuo, Nicolas Bertholet, Gerhard Gmel, Lawrence Doi, Helen Cheyne, Ruth Jepson, Vanesa Luna, Leticia Echeverria, Silvia Morales, Teresa Barroso, Ângela Abreu, Cosma Aguiar, Duncan Stewart, Angela Abreu, Riany M. Brites, Rafael Jomar, Gerson Marinho, Pedro Parreira, J. Paul Seale, J. Aaron Johnson, Dena Henry, Sharon Chalmers, Freida Payne, Linda Tuck, Akula Morris, Cátia Gonçalves, Bettina Besser, Cristina Casajuana, Hugo López-Pelayo, María Mercedes Balcells, Lídia Teixidó, Laia Miquel, Joan Colom, Kimberly A. Hepner, Katherine. J. Hoggatt, Andy Bogart, Susan. M. Paddock, Sarah L Hardoon, Irene Petersen, Fiona L Hamilton, Irwin Nazareth, Ian R. White, Louise Marston, Paul Wallace, Christine Godfrey, Elizabeth Murray, Hana Sovinová, Ladislav Csémy

Addict Sci Clin Pract. 2016; 11(Suppl 1): 13. Published online 2016 Sep 19. doi: 10.1186/s13722-016-0062-9

PMCID:: PMC5032602

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Select item 98337175.

A New Resting and Invalid Chair

Ephraim Cutter

Chic Med J Exam. 1877 Sep; 35(3): 225–240.

PMCID:: PMC9833717

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Select item 98176276.

Hereditary Taints: An Illustrated Lecture Delivered before the Chicago Medical Society, Feb. 17th, 1879

Ephraim Cutter

Chic Med J Exam. 1879 Apr; 38(4): 337–348.

PMCID:: PMC9817627

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Select item 110396187.

Research on the mechanism of coal wall fragmentation and dust production characteristics in the perspective of differentiated discrete elements

Zhen Li, Deji Jing, Shaocheng Ge, Xiangxi Meng, Di Yang, Shuaishuai Ren

Sci Rep. 2024; 14: 9312. Published online 2024 Apr 23. doi: 10.1038/s41598-024-60192-6

PMCID:: PMC11039618

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Select item 109613158.

Influence of coal cowl parameters on the coal loading process of thin coal seam shearer drum

Weipeng Xu, Xiaodi Zhang, Kuidong Gao, Shenghao Ma

Sci Rep. 2024; 14: 7006. Published online 2024 Mar 25. doi: 10.1038/s41598-024-57372-9

PMCID:: PMC10961315

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Select item 108575389.

Numerical study of forces acting on the drum cutting coal with gangue

Hongmei Liu, Han Zhang

PLoS One. 2024; 19(2): e0296624. Published online 2024 Feb 9. doi: 10.1371/journal.pone.0296624

PMCID:: PMC10857538

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Select item 616442710.

Exposure to Harmful Dusts on Fully Powered Longwall Coal Mines in Poland

Jarosław Brodny, Magdalena Tutak

Int J Environ Res Public Health. 2018 Sep; 15(9): 1846. Published online 2018 Aug 27. doi: 10.3390/ijerph15091846

PMCID:: PMC6164427

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Select item 416538411.

Implementation of Paste Backfill Mining Technology in Chinese Coal Mines

Qingliang Chang, Jianhang Chen, Huaqiang Zhou, Jianbiao Bai

ScientificWorldJournal. 2014; 2014: 821025. Published online 2014 Aug 31. doi: 10.1155/2014/821025

PMCID:: PMC4165384

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Select item 781858812.

Micromechanism Analysis of Surfactant Wetting of Coal Based on ¹³C NMR Experiments

Lei Zheng, Zongqi Liu, Dewen Li, Hongtu Wang, Qingtao Zhang

ACS Omega. 2021 Jan 19; 6(2): 1378–1390. Published online 2021 Jan 6. doi: 10.1021/acsomega.0c05005

PMCID:: PMC7818588

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Select item 939484713.

Study on coal dust diffusion law and new pneumatic spiral spray dedusting technology at transfer point of mine cross roadway

Deji Jing, Hongwei Liu, Tian Zhang, Shaocheng Ge, Shuaishuai Ren, Mingxing Ma

PLoS One. 2022; 17(8): e0272304. Published online 2022 Aug 22. doi: 10.1371/journal.pone.0272304

PMCID:: PMC9394847

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Select item 1067528314.

Research on an Intelligent Mining Complete System of a Fully Mechanized Mining Face in Thin Coal Seam

Bo Ren, Ke Ding, Lianguo Wang, Shuai Wang, Chongyang Jiang, Jiaxing Guo

Sensors (Basel) 2023 Nov; 23(22): 9034. Published online 2023 Nov 8. doi: 10.3390/s23229034

PMCID:: PMC10675283

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Select item 990888015.

Investigation of the acoustic emission and fractal characteristics of coal with varying water contents during uniaxial compression failure

Muhammad Ali, Enyuan Wang, Zhonghui Li, Naseer Muhammad Khan, Mohanad Muayad Sabri Sabri, Barkat Ullah

Sci Rep. 2023; 13: 2238. Published online 2023 Feb 8. doi: 10.1038/s41598-023-29473-4

PMCID:: PMC9908880

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Select item 1062484316.

Experimental study on the effects of interface dip angle on deformation failure of combined limestone–coal specimens

Faxin Li, Yisong Ding, Zhen Zhang, Zhiwei Zhang, Zhaojun Xuan, Qifeng Song

Sci Rep. 2023; 13: 18999. Published online 2023 Nov 3. doi: 10.1038/s41598-023-46186-w

PMCID:: PMC10624843

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Select item 934801117.

New Technology of Mechanical Cavitation in a Coal Seam to Promote Gas Extraction

Jianshe Linghu, Haidong Chen, Liguo Wang, Fenghua An

ACS Omega. 2022 Jun 21; 7(24): 21163–21171. Published online 2022 Jun 7. doi: 10.1021/acsomega.2c01962

PMCID:: PMC9348011

Article PDF–2.1M

Select item 677496918.

Numerical simulation of induced cutting in deep coal

Si-fei Liu, Shuai-feng Lu, Zhi-jun Wan, Hong-wei Zhang, Ke-ke Xing

R Soc Open Sci. 2019 Sep; 6(9): 190308. Published online 2019 Sep 18. doi: 10.1098/rsos.190308

PMCID:: PMC6774969

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Select item 969071219.

Study on Regional Strata Movement during Deep Mining of Erdos Coal Field and Its Control

Guojian Zhang, Zhiyang Wang, Guangli Guo, Wei Wei, Fugang Wang, Leilei Zhong, Yaqiang Gong

Int J Environ Res Public Health. 2022 Nov; 19(22): 14902. Published online 2022 Nov 12. doi: 10.3390/ijerph192214902

PMCID:: PMC9690712

Article PDF–34M

Select item 943990920.

Study on Thermodynamic Characteristics and Heat Transfer Method of Uncontrolled Fire in Coal Mine Gangue Mountain Spontaneous Combustion Based on System Dynamics

Guangxing Bai

Comput Intell Neurosci. 2022; 2022: 5953322. Published online 2022 Aug 26. doi: 10.1155/2022/5953322

PMCID:: PMC9439909

Article PDF–568K

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PMC Images search for coal cutter【矿】;undercutter【矿】

Fig 14Stacking patterns of media at different coal caving distances.

As shown in Fig (a), when the coal discharging interval is 1.0 m and 1.5 m, the fluctuation ranges of the coal discharging quantity of a single port is large, and the backside coal is piled into an inclined strip area, when the coal discharging interval is 1.5 m, the backside coal dispersion degree is smaller and the accumulation area is larger. When coal discharge distance is greater than 2.0 m, the fluctuation range of the coal discharge quantity of a single port is small, and there is almost no discrete state of back-coal, but the accumulation area is positively correlated with the coal discharge distance. For Bai-Ji mine, when the tailstock caving height is 6.51 m, the caving interval is 1.67 m. As shown in Fig (b), when the coal caving interval is 1.0 m, the fluctuation range of single coal caving is large, and the back coal is relatively discrete. When the distance of coal caving is 2.0 m, 3.0 m, and 5.0 m, the fluctuation range of single coal caving is small, and there is almost no discrete state of back coal. Consistent with the tailstock caving, the stacking area of back coal is positively correlated with the caving distance. For Bai-Ji Coal Mine, when the caving height of the working face is 2.23 m, the drawing interval of coal is more reasonable at 1.40 m.

Law of coal caving behind the flexible shield support in pseudo-inclined working face

PLoS One. 2021;16(12):e0261355.
Figure 9

Washability curves. (A) Ash of YQ9-BC coal. (B) Sulfur of YQ9-BC coal. (C) Ash of YQ9-SB coal. (D) Sulfur of YQ9-SB coal. (E) Ash of YQ15-BC coal. (F) Sulfur of YQ15-BC coal. (G) Ash of GZ9-DC coal. (H) Sulfur of GZ9-DC coal. (I) Ash of GZ9-SD coal. (J) Sulfur of GZ9-SD coal. (K) Ash of GZ9-BC coal. (L) Sulfur of GZ9-BC coal.

Occurrence of Minerals in Coal and Its Geological Controlling Factors—Significance in Evaluation of Coal Washability

ACS Omega. 2021 Sep 28;6(38):24362-24376.
Fig 2Complex boundary conditions and coal caving forms.

As shown in Fig (a), law of coal body release is mainly affected by the front gangue, roof gangue, structure form of support and floor. As shown in Fig (b), when the support falls, the coal body falls immediately, due to the clamping effect of the rock layer, the "fracture-falling-breaking" process of the roof lags behind the coal body and forms an temporary overhead area with the fallen coal body, θ is the natural angle of repose of coal, and also the inclination of the interface between coal and gangue, when the support puts coal, the airport area will gradually disappear. Therefore, law of coal body release is mainly affected by the top gangue, the structure form of support and the roof. As shown in Fig (c), law of coal body drawing is mainly affected by the front gangue and floor. As shown in Fig (d), the coal body drawing law is mainly affected by the roof, top gangue and floor.

Law of coal caving behind the flexible shield support in pseudo-inclined working face

PLoS One. 2021;16(12):e0261355.
Figure 1Comparison of three taxa after coal exposure.

Stages of coral health degradation after 14 d exposure to 0 mg coal l⁻¹ (a), 73 mg coal l⁻¹ (b) and 275 mg coal l⁻¹ (c). Mucus strands were used to actively remove settled coal (b) and coal deposition that exceeded removal efforts resulted in nubbin mortality (c). Fish from control vs. coal exposed treatments (0 mg coal l⁻¹–275 mg coal l⁻¹) after 28 d exposure (d). Coal settled onto seagrass leaves and substrate (e). Note: No fish were present in the 202 mg coal l⁻¹ treatment. All scale bars = 5 mm.

Simulated coal spill causes mortality and growth inhibition in tropical marine organisms

Sci Rep. 2016;6:25894.