Results 81 to 90 of about 7,123,984 (286)

Real‐time multiscale characterization of water migration in deep coal under stepwise pressure‐increasing injection: Combined low‐field nuclear magnetic resonance and multifractal approach

Deep Underground Science and Engineering, EarlyView.
The graphical abstract illustrates the real‐time multiscale characterization of water migration in deep coal under stepwise pressure‐increasing injection. Under in‐situ hydrostatic pressure, the water invasion front advances progressively along the axial direction as the injection pressure increases stepwise, tracked in real time by nuclear magnetic ...
Lei Song, Hongwei Zhou, Zelin Liu, Yimeng Wang, Xiaohai Zhang, Mingyuan Lu, Yang Ju   +6 more
wiley   +1 more source

Seepage and stability analysis of fractured soil slope considering permeability anisotropy

Scientific Reports
Slope fractures play an important role in slope destabilization accidents induced by rainfall, but its influence on seepage field and slope stability is not fully studied, especially under the conditions of soil permeability anisotropy.
Chunli Zhang, Mengdi Qin, Long Hong, Yunfei Qi   +3 more
doaj   +1 more source

Seepage field characteristic and stability analysis of tailings dam under action of chemical solution. [PDF]

Sci Rep, 2021
Wang G, Hu B, Tian S, Ai M, Liu W, Kong X.   +5 more
europepmc   +1 more source

Three-Dimensional Seepage Field Inversion Analysis and Seepage Control Effect Evaluation of Shuidishan Reservoir

Renmin Zhujiang, 2022
Moderate permeable joint zones occur at the right dam abutment of the Shuidishan reservoir,which indicates a risk of seepage damage at the right dam abutment and its downstream.To reasonably evaluate the effect of reservoir seepage control measures,we build an overall three-dimensional (3D) seepage model to simulate the stable seepage in a natural ...
PAN Yingjie, XU Jianjun, XIE Xinghua, LU Bin, ZHANG Yu, XIE Dongyi   +5 more
openaire   +1 more source

A primary care‐led school‐centered model for epilepsy detection and care among children in India

Epilepsia Open, EarlyView.
Abstract Objective We evaluated whether a primary care‐led, school‐centered epilepsy detection model, delivered through India's national school health program, Rashtriya Bal Swasthya Karyakram (RBSK), could improve childhood epilepsy detection and the knowledge, attitudes, and practices (KAP) of teachers and primary healthcare providers.
Sulena Sulena, Gagandeep Singh, Akanksha Nagar, Preeti Padda   +3 more
wiley   +1 more source

Multiphysics Coupled Response of Stress and Seepage in Coal Under Borehole Disturbance and Optimization of Borehole Parameters

Energy Science &Engineering, EarlyView.
One‐way FLAC3D‐COMSOL coupled modeling and field validation show that a 150 mm borehole radius with 5 m spacing provides the best coordination of plastic‐zone expansion, stress relief, permeability enhancement, and gas‐pressure attenuation, increasing the pure gas drainage rate by 35.4%. ABSTRACT To rationally determine the borehole radius and borehole
Yewu Bi, Yichen Li, Yangyang Guo, Yikai Zhang, Jiazhi Sun, Kangnan Li, Yongpeng Fan, Qixian Li   +7 more
wiley   +1 more source

Analytical Solution of Steady-State Temperature Field of Single Freezing Pipe under Action of Seepage Field

, 2020
To accurately describe the distribution law of the temperature field formed by a single freezing pipe under the action of a seepage field, the shape of the freezing front was simplified using a segmentation-equivalent method.
Bin Wang, Haibing Cai, Chuanxin Rong, Shiqi Zhang, Hua Cheng   +4 more
core   +1 more source

Study on Fluid Pressure in Tubing, Dynamic Stress in Reservoir, and Fracture Propagation Morphology During Variable‐Rate Hydraulic Fracturing

Energy Science &Engineering, EarlyView.
Variable‐rate hydraulic fracturing can induce unsteady flow in the tubing, thereby generating fluctuating fluid pressure near the bottom‐hole reservoir. Dynamic stress is generated in the reservoir under the action of fluctuating fluid pressure and propagates as stress waves.
Zhu Ge, Wang Chaojing, Li Weicheng
wiley   +1 more source

Study on regional nonlinear seepage flow combining indoor tests and numerical simulation

Journal of Hydrology: Regional Studies
Study region: The Xixiayuan area on the northern bank of the Yellow River in Luoyang, Henan Province, China, is characterized by a typical riverbank dual-structure aquifer system with high permeability.
Yanrong Zhao, Haonan Wang, Jinguo Wang, Yikai Yang, Xiaosong Dong, Zhiheng Ma   +5 more
doaj   +1 more source

FLOW-PIPE-SEEPAGE COUPLING ANALYSIS OF SPANNING INITIATION OF A PARTIALLY-EMBEDDED PIPELINE

, 2010
The initiation of pipeline spanning involves the coupling between the flow over the pipeline and the seepage-flow in the soil underneath the pipeline. The pipeline spanning initiation is experimentally observed and discussed in this article.
Gao FP, 高福平, Luo CC
core   +1 more source