Results 91 to 100 of about 284 (138)

Paleo-climatic control on recharge and fresh-salt groundwater distribution in the Red River delta plain, Vietnam

Scientific Reports
Paleo-climatic induced sedimentation controls present-day recharge and the fresh-salt groundwater distribution in Quaternary delta systems. During sea-level highstands, marine clays with saline pore water were deposited and are interbedded with aquifers ...
Flemming Larsen, Hoan Van Hoang, Long Vu Tran, Nhan Quy Pham   +3 more
doaj   +1 more source

The Principle and Downhole Testing of Water Injection Exploration in Depleted Reservoirs

Applied Sciences
Coal mine water hazards are one of the five major natural disasters in mines, and water in depleted areas is the most serious form of water hazard causing casualties.
Jinpeng Xu, Hui Zhao, Bing Dong, Yi Li, Chuang Wang   +4 more
doaj   +1 more source

sediment salt-load detection using a water-borne transient electromagnetic system

, 2020
The salinisation of major river systems in Australia, and in other countries, is primarily determined by the upward movement of saline water from regional aquifers into the river.
Brian Barrett, Andrew Telfer, Michael Hatch, Graham Heinson   +3 more
core  

Improved adaptive regularization for simulated annealing inversion of transient electromagnetic

Scientific Reports
Geophysical inversion usually involves ill-posed problem. Regularization is the most commonly used method to mitigate this problem. There are many regularization parameter selection methods, among which the adaptive regularization method can ...
Xiang Tang, Shangbin Liu, Xiaofei Nian, Shengqiang Deng, Yuchao Liu, Qiongyao Ye, Yingjie Li, Yangyi Li, Tong Yuan, Huaifeng Sun   +9 more
doaj   +1 more source

Study on the Influencing Factors of Direct Current Dipole Array for Tunnel Advance Detection and Its Application

IEEE Access
The direct current resistivity method is a primary technique for detecting water-bearing structures ahead of tunnel and coal mine excavation faces. We propose a dipole array advance detection device based on the DC method, and quantified the advance ...
Xiaozhen Teng, Jianhua Yue, Shuanggui Hu, Chao Sun, Kailiang Lu, Herui Zhang, Danyang Xi   +6 more
doaj   +1 more source

Exploration and 3D visualization of leakage channels of tailings ponds in karst regions：A case study of Zhatang Tailings Pond in Guiyang City

Carsologica Sinica
Karst regions are rich in mineral resources, and tailings ponds-essential facilities for maintaining normal production in mining enterprises-are often inevitably constructed on carbonate formations in these areas.
Lanjian MA, Shiwan CHEN, Liangjun CAI, Yongfei LUO, Jianzhang LI, Zhihao JI, Weijun LONG, Hai XIONG, Lang TIAN, Pan WU   +9 more
doaj   +1 more source

Landslide Investigation Using Transient Electromagnetic Method (TEM): A Case Study on Al-Ja'ydyya- Salhuob Landslide / Jordan

, 2017
In this study, Transient Electromagnetic (TEM) geophysical method was used at Al-Ja'ydyya- Salhuob landslide located along Amman- Irbid - Jerash highway aiming at investigating the subsurface layering's, thicknesses and to map the subsurface failure ...
Al-Amoush, Hani
core  

Transient electromagnetic assessment of seafloor mineral deposits: a model study

, 2011
NS33B-1594 Electromagnetic methods are commonly employed in exploration for land based mineral deposits. A suite of airborne, land and borehole electromagnetic techniques consisting of different coil and dipole configurations have been developed over ...
Jegen, Marion, Hölz, Sebastian, Swidinsky, Andrei   +2 more
core  

Improved analysis of borehole ground penetrating radar to monitor transient water flow in the vadose zone

, 2003
Measuring the relative apparent dielectric permittivity of the subsurface is an easy and inexpensive way to indirectly obtain the volumetric water content.
Rucker, Dale Franklin.
core  

Study on the Method of Advanced Water Prediction for Underground Mine Expansion Using the Transient Electromagnetic Method and the Field Test: A Case Study of the Huize Lead–Zinc Mine

Mine water disaster is one of the main natural disasters in underground mining operations, and seriously threatens the safety of mine production and personnel’s life, affecting mine safety and sustainable development. The research on the prevention
Ticai Hu, Hongliang Wang, Dajin Liu, Zhouhong Ren, Ronghui Xia, Lihui Han, Shichong Yuan   +6 more
core   +1 more source