Article
Chemistry, Multidisciplinary
Nengyuan Chen, Qiang Li, Wei Wei, Danni Zhao, Xiong Wu, Jiangbo Xu, Yalin Nan, Ligang Niu
Summary: In the Loess Plateau region, loess is commonly used as a filling material for dams. This study focuses on the shear performance of loess filler in dams, as it can affect the overall strength of loess dams. The experiments explore the shear failure characteristics of the filler under different conditions, such as water content, confining pressure, and dry density. The findings reveal that remolded loess is prone to shear expansion failure under certain conditions, and the failure process of a loess dam is influenced by water level and pressure.
APPLIED SCIENCES-BASEL
(2023)
Article
Geosciences, Multidisciplinary
Akshat Chandna, Sanjay Srinivasan
Summary: This paper presents a methodology for combining information from geomechanical and stochastic approaches in order to obtain a fracture modeling approach that is both geologically realistic and consistent with the geomechanical conditions for fracture propagation.
MATHEMATICAL GEOSCIENCES
(2023)
Article
Water Resources
Christopher P. Green, Andy Wilkins, Jonathan Ennis-King, Tara LaForce
Summary: The geomechanical response of a porous reservoir to fluid injection is complex and can be predicted using simplified analytical models or detailed numerical simulations. The study compares analytical and numerical solutions for fluid and temperature fronts, finding qualitative agreement for some quantities but not others. While the LaForce et al. (2014a,b) solutions are useful for rapid investigation, MOOSE software offers enhancements for more sophisticated analyses and should be preferred.
ADVANCES IN WATER RESOURCES
(2021)
Article
Engineering, Chemical
R. Wilson, N. Toro, O. Naranjo, X. Emery, A. Navarra
Summary: Discrete event simulation (DES) is a computational tool used to simulate the interaction of key variables and processes in complex mining systems, supporting risk identification and strategic decision-making. With the growing size of tailings storage facilities worldwide, cost-effective management strategies are needed to mitigate risks, highlighting the importance of research on tailings retreatment.
MINERALS ENGINEERING
(2021)
Article
Multidisciplinary Sciences
Xinliang Fang
Summary: This study investigates the desorption behavior of methane in coal seams after injecting N2 gas. The results show that N2 can promote the desorption of methane by competitive adsorption. Higher injection pressure and temperature of N2 lead to more significant desorption. Additionally, the water content in coal also enhances methane desorption.
SCIENTIFIC REPORTS
(2022)
Article
Engineering, Civil
Mingi Kim, Choong-Ki Chung, Joung-Woo Han, Han-Saem Kim
Summary: The study developed a geostatistical optimization model for 3D mapping of subsurface stratification and SPT-N value. It was applied to a dam emergency spillway site in South Korea, and effective results were obtained compared to conventional approaches. Geospatial database development, reconstitution of target grid volume, and detection of outliers in the borehole dataset were performed prior to 3D modeling.
GEOMECHANICS AND ENGINEERING
(2023)
Article
Construction & Building Technology
Haoliang Huang, Jing Luo, Chuhan Peng, Tongqing Sun, Tiansheng Deng, Jie Hu, Kasimova Guzal Anvarovna, Nurmirzayev Azizbek Davlatali Ugli, Dongshuai Hou, Jiangxiong Wei, Qijun Yu
Summary: The use of carbon fiber as reinforcement in ultra high performance concrete can prevent steel fiber corrosion. The interfacial bonding between carbon fibers with different surface treatments and the high strength paste in UHPC is not yet clear.
CEMENT & CONCRETE COMPOSITES
(2023)
Article
Materials Science, Ceramics
Rezvan Yavari, Hamid Khorsand
Summary: This study investigated the injection process of SiC feedstock at various temperatures and flow rates using powder injection molding technique. The results showed that effective separation of powder and binder could be achieved through simulation and experimental validation, providing a new approach for manufacturing complex ceramic components.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Geochemistry & Geophysics
Jixin Huang, Chuanfeng Wang, Lixin Wang, Xun Hu, Wenjie Feng, Yanshu Yin
Summary: This paper proposes a novel method of 3D multipoint geostatistical inversion based on 2D training images directly. The 2D training image is scanned to acquire the multipoint statistical probability, which is then fused into the 3D probability. The rock facies types and patterns are obtained through random sampling. The iterative adaptive spatial sampling method is used to ensure that the error is below a given threshold.
Article
Engineering, Civil
Milica Markovic, Jelena Markovic Brankovic, Miona Andrejevic Stosovic, Srdjan Zivkovic, Bojan Brankovic
Summary: Embankment rockfill dams are the most common type of dams used in the world today, with one third of failures caused by dam slope instability. The stability of the dam is assessed through analysis of pore and total pressure data from pressure measurement cells. A new method using artificial neural networks has been developed to predict pore pressure on malfunctioning cells, resulting in more precise predicted values compared to using only one network.
WATER RESOURCES MANAGEMENT
(2021)
Article
Engineering, Marine
Ling Peng, Ting Zhang, Youtong Rong, Chunqi Hu, Ping Feng
Summary: The study investigates the impact of dam-break floods on downstream structures, including the distribution and temporal variations of the pressure acting on the structures. Significant differences were observed in the water surface profiles upstream and downstream of the structures, as well as in the velocity distributions at the surface.
Article
Thermodynamics
Yong-hui Duan, Bai-gang Sun, Qian Li, Xue-song Wu, Tie-gang Hu, Qing-he Luo
Summary: This study aims to comprehensively investigate the combustion characteristics of turbocharged direct injection hydrogen internal combustion engines and optimize their performance. The research reveals that turbocharged direct injection hydrogen internal combustion engines have higher maximum pressure rise rate and longer burning duration, which can be applied to the design and development of related fields.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Engineering, Biomedical
N. Neumann, L. Meylheuc, L. Barbe, J. Garnon, G. Koch, A. Gangi, Bernard Bayle
Summary: This article studies the assistance to bone cement injection, with a focus on vertebroplasty. It presents a robotic system that can be operated remotely and withstand pressures up to 140 bar. The system improves cement polymerization control and temperature control during the injection and uses a rate control teleoperation strategy with force feedback.
IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING
(2022)
Article
Engineering, Chemical
Chun-Der Cheng, Hsi-Hsun Tsai, Yi-Ling Liao
Summary: Plastic pallets are essential for transporting industrial products within containers and can be more environmentally friendly when made from recycled plastics. By using a baffle cooling system and multiple filling gates, large-size pallets can be injection molded with lower locking force. The sequential valve gate opening scheme reduces welding lines, decreases filling pressure, and minimizes warpage of the pallet compared to the concurrent valve gate opening scheme.
ADVANCES IN POLYMER TECHNOLOGY
(2021)
Article
Energy & Fuels
Yanfang Gao, Zhanli Ren, Mian Chen, Hailong Jiang, Shuaiwei Ding
Summary: This paper proposed a comprehensive numerical model to predict the responses of conventional SAGD wells and VWA-SAGD wells under hot water injection. The major conclusions include the existence of three relatively narrow separate transition zones effectively heated, the vertical well influencing reservoir deformation and caprock uplift, and the beneficial effects of VWA-SAGD technique on porosity improvement and steam chamber propagation.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
