Dense Sandstone Material Decomposition Based on Improved Convolutional Neural Network by Ran ZHANG, Huihua KONG, Jiaxin LI, Yijiao SONG

“…The feasibility of this method is verified on simulated rock and artificial sandstone datasets. The simulation and experimental results show that RS-Net combined with mixing loss can retain more internal details of the image, the decomposed image edge is clearer, and the image quality is higher.…”
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miRNAs in Extracellular Vesicles from iPS-Derived Cardiac Progenitor Cells Effectively Reduce Fibrosis and Promote Angiogenesis in Infarcted Heart by Wanling Xuan, Lei Wang, Meifeng Xu, Neal L. Weintraub, Muhammad Ashraf

“…Amongst the highly enriched miRNAs, miR-373 was strongly antifibrotic, targeting 2 key fibrogenic genes, GDF-11 and ROCK-2. miR-373 mimic itself was highly efficacious in preventing scar formation in the infarcted myocardium. …”
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The Effect of Fracture Surface Roughness and Mechanical Aperture on the Onset of Nonlinear Flow Behaviors in 3D Self-Affine Rough Fractures by Kangsheng Xue, Xiaobo Liu, Xufeng Yan, Xiaolou Chi

“…Equivalent hydraulic aperture and fracture surface roughness are two significant factors affecting the fluid flow behaviors in rock fractures. To understand the role of fracture surface roughness and aperture in the fluid flow through 3D self-affine rough fractures, roughness fracture surfaces with joint roughness coefficients equal to 2.5, 7.5, 12.5, and 17.5 were established, and the Navier–Stokes equation was used to compute the fluid flow in these 3D self-affine rough fractures with a mechanical aperture increase from 0.2 mm to 0.8 mm with a gradient of 0.2 mm. …”
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Shaking Table Tests for Seismic Response of Oblique Overlapped Tunnel by Hao Lei, Honggang Wu, Tianwen Lai

“…Furthermore, the analysis of the acceleration response spectrum also showed that the surrounding rock mass has an amplification effect on low-frequency seismic waves. …”
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Influence of Unloading Conditions of Confining Pressure on the Compressive Strength and Permeability of Deep Mudstone by Tianyu Xin, Yashengnan Sun, Junguang Wang, Weiji Sun

“…Overall, this study can serve as a useful reference for analyzing the engineering disasters associated with deep rock mass, tunnel ventilation, and gas storage.…”
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Factors Controlling the Hydraulic Fracture Trajectory in Unconventional Reservoirs by Peng Zheng, Erhu Liu, Desheng Zhou, Xinwei Du, Zhongjun Ma

“…In previous studies, due to the heterogeneity of rock samples and the limitations of sample size, influence degree of various factors on fracture deflection angle has not been well distinguished in laboratory experiments. …”
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Influence of Support Stiffness on Dynamic Characteristics of the Hydraulic Pipe Subjected to Basic Vibration by Wei Qu, Huailiang Zhang, Wei Li, Wenqian Sun, Lina Zhao, Haihui Ning

“…The basic vibration generated during the tunneling process of hard rock tunnel results in the change of the support stiffness of the hydraulic pipe, which causes the problem of reduction of pipe transmission efficiency. …”
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Stability and Countermeasures for a Deposit Slope with Artificial Scarp: Numerical Analysis and Field Monitoring by Yong Hong, Zhushan Shao, Guangbin Shi, Jiabao Liu

“…Anchors and concrete frame beams provided stress compensation and improve the stability of the deposit slope, and front prestressed anchor cables and stability piles strengthened the mechanical properties of the rock and soil masses and provided resistance at the front of the deposit. …”
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Strain Rate Effect on Acoustic Emission Characteristics and Energy Mechanisms of Karst Limestone under Uniaxial Compression by Qingsong Wang, Jianxun Chen, Jiaqi Guo, Yanbin Luo, Yao Li, Hongyu Wang, Qin Liu

“…Under low strain rates, the rock was damaged seriously, AE signals appeared continuously, and the cumulative number of AE signals was high. …”
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Experimental Study on Thermal Damage and Energy Evolution of Sandstone after High Temperature Treatment by Rong-rong Zhang, Lai-wang Jing, Qin-yong Ma

“…The thermal damage of rock increases with the increase of temperature, which is in accordance with the logistic curve model. …”
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Deep mantle earthquakes linked to CO2 degassing at the Mid-Atlantic Ridge by Zhiteng Yu, Satish C. Singh, Cédric Hamelin, Léa Grenet, Marcia Maia, Anne Briais, Lorenzo Petracchini, Daniele Brunelli

“…Syntheses of regional basaltic rock samples and their geochemical analyses indicate the presence of an abnormally high quantity of CO2 (~0.4–3.0 wt%) in the primary melts. …”
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The Study of Key Stratum Location and Characteristics on the Mining of Extremely Thick Coal Seam under Goaf by Gaochuan Guo, Yongkang Yang

“…A mechanical model of the bearing characteristics of the interlayer key strata structure was established according to the structure of the intercalation rock layer, which is a hinged block structure. The results of the model indicate that the maximum principal stress occurs when the key strata portion of the arch structure bears the overlying load. …”
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Characteristics of Sedimentary Microfacies of Late Triassic Yanchang Formation in North-Central Ordos Basin by Jiangwei Wei, Fawang Li, Shikuo Zhang, Hanlie Cheng, Qiang Qin, David Cadasse

“…Sedimentary microfacies refer to the smallest unit with unique rock structure, structure, thickness, rhythm, and other sedimentary characteristics and certain plane configuration rules in the subfacies zone. …”
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Investigation of the Effect of Grout Viscosity on The Bearing Capacity of Sandy Soil. by Oriokot, William

“…Grouting is one of the most effective and commonly used soil stabilization technique for weak soils and rock formations. Cement grouts are mainly used in most engineering works since they have low costs and readily available. …”
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Flood susceptibility mapping based on watershed geomorphometric characteristics and land use/land cover on a small island by B.H. Narendra, O. Setiawan, R.A. Hasan, C.A. Siregar, , Pratiwi, N. Sari, A. Sukmana, I.W.S. Dharmawan, R. Nandini

“…These most related geomorphometrics indicate that the watersheds with higher flood susceptibility have low rock permeability, relatively low infiltration capacity, and relatively high surface runoff, thus triggering flooding. …”
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Ground Motion and Site Characteristics Evaluation Using Hilbert-Huang Transform Method Based on Light-Moderate Earthquakes by Jinchang Chen, Lanmin Wang, Ailan Che, Hanxu Zhou

“…Hilbert energy at soil layer is about 3 times greater than it at rock site when the epicenter distance is close and soil layer can also amplify the instantaneous energy. …”
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Efficacy of Hummel (Modified Schlumberger) Arrays of Vertical Electrical Sounding in Groundwater Exploration: Case Study of Parts of Ibadan Metropolis, Southwestern Nigeria by Micheal Oladunjoye, Solomon Jekayinfa

“…A total of thirty-seven (37) sounding locations were occupied and one hundred (100) sounding data for both conventional Schlumberger and modified Schlumberger arrays were collected across different rock units within Ibadan metropolis, south-western Nigeria, with electrode spacing (AB/2) ranging from 1 to 75 m. …”
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Fracability Evaluation Method and Influencing Factors of the Tight Sandstone Reservoir by Jiageng Liu, Lisha Qu, Ziyi Song, Jing Li, Chen Liu, Yongcun Feng, Haihang Sun

“…In this study, a systematic model was proposed for the fracability evaluation of tight sandstone reservoirs. The rock mechanics tests and sonic tests demonstrated that tight sandstone reservoir is characterized by high brittleness, high fracture toughness, and weak development of natural fractures. …”
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Pretreatment for Tunnel Karst Cave during Excavation: A Case Study of Guangxi, China by Junjie Li, Qiunan Chen, Xiaocheng Huang, Gen Zou, Jiazheng Deng

“…Karst landscape is a general term for earth surfaces and underground patterns that have been formed by the dissolution of soluble rock. Karst landscapes are widely distributed throughout China—particularly in the Guangxi and Guangdong provinces. …”
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Geological setting, geochemistry and mineralogy of lithium bearing pegmatites in South Western Mali, West Africa; a review by Elhadji Mory Traore, Akinade S. Olatunji, Mory Sidibe, Sory I. M Konate, N’Tcha Daniel Kouagou N’dah, George Lemewihbwen Ngiamte

“…Trace element compositions, including Rb, Sr, La, and U, provide unique geochemical signatures for each pegmatite field, indicating diverse mineralization processes and fluid-rock interactions.…”
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