Results 21 to 30 of about 141,345 (280)

Numerical Simulation of Artificial Recharge Groundwater Effect on Overlying Soft Clay Compression Control

Advances in Civil Engineering, 2023
Soil deformation is prone to occur in the process of the foundation pit dewatering. A large number of metro existing tunnels are located in soft soil layers. The compression of soft soil poses a threat to metro existing tunnels.
Chenghua Xu, Dandan Yu, Gang Liu, Zujiang Luo, Zhao Li   +4 more
doaj   +1 more source

Geology of the Yeşilyurt gold deposit: an example of low-angle normal fault related mineralization, Eastern Anatolia-Turkey

Bulletin of the Mineral Research and Exploration, 2021
Yeşilyurt gold mineralization is located within the provincial borders of Malatya and Adıyaman in the East Anatolian Region. This mineralization is one of the gold deposits which correlated with low-angle normal/detachment fault.
Kurtuluş Günay, Cahit Dönmez, Nail Yıldırım, Esra Yıldırım   +3 more
doaj   +1 more source

Determination of the suitable drilling operating parameters in different geological formations El-Sharara Oil Field (South-Western Libya) [PDF]

, 2018
Purpose. The objective of this study is to determine the best operating conditions for the most notable drilling parameters (i.e. weight on bit (WOB), rotary drilling speed (RPM), and characteristics of drilling fluid) using field data obtained from El-
Abdellah, W, Boghdady, G, Sayed, M
core   +1 more source

Numerical simulation and protection of the dynamic change of Jinan karst spring based on coupling of seepage and conduit flow

Heliyon, 2022
The objective of this study was to predict the dynamic change in the spring water level more precisely, to provide timely solutions for karst spring protection.
Changsuo Li, Liting Xing, Yanan Dong, Yuming Peng, Xuerui Xing, Chuanlei Li, Zhenhua Zhao   +6 more
doaj   +1 more source

Determination of Bromine in Brine by Wavelength Dispersive X-ray Fluorescence Spectrometry with Film Adsorption Pretreatment

Yankuang ceshi, 2015
Bromine exists mainly as ions in bromide brine and halide sulfate brine in the hydrosphere of the crust. Powder carrier pellet method is commonly used in analyzing bromine in brine by Wavelength Dispersive X-ray Fluorescence Spectrometry (WDXRF). However,
CHEN Jing-wei, SONG Jiang-tao, ZHAO Qing-ling, SONG Shuang-xi, TANG Yun-zhi, GENG Nan   +5 more
doaj   +1 more source

Geological Characteristics and Exploration Prospect of Black Shale in the Dongyuemiao Member of Lower Jurassic, the Eastern Sichuan Basin, China

Frontiers in Earth Science, 2021
China has yielded huge commercial production from the marine organic-rich shale but shows a slow exploration process in the lacustrine organic-rich shale.
Guodong Wei, Guodong Wei, Guodong Wei, Wei Wang, Wei Wang, Liang Feng, Xiucheng Tan, Chuan Yu, Chuan Yu, Hualian Zhang, Hualian Zhang, Zhiping Zhang, Zhiping Zhang, Shengxiu Wang, Shengxiu Wang   +14 more
doaj   +1 more source

Prediction Model for Gas Adsorption with Different Pore Compositions under In Situ Reservoir Conditions in Northeast Chongqing [PDF]

ACS Omega
Zhiping Zhang, Ye Zhang, Jinxi Wang, Wei Wang, Xuefei Tong, Chuan Yu, Shengxiu Wang, Qiaoli Wang, Chunlin Zeng, Xuesong Tian, Dishu Chen   +10 more
doaj   +2 more sources

Determination of Hexavalent Chromium in Solid Waste by Inductively Coupled Plasma-Optical Emission Spectrometry with Microwave Digestion

Yankuang ceshi, 2021
BACKGROUND Hexavalent chromium is one of the necessary indices for monitoring the soil environment of solid waste and construction land. OBJECTIVES To establish a simple, accurate and precise method for the determination of Cr(Ⅵ).
ZHAO Qing-ling, LI Qing-cai, TAN Xian-feng, AN Mao-guo, CHEN Juan, MAO Xiu-li   +5 more
doaj   +1 more source

Thermodynamic and geomechanical processes research in the development of gas hydrate deposits in the conditions of the Black Sea [PDF]

, 2018
Purpose. Research of thermodynamic and geomechanical processes occurring in a gas hydrate body under the influence of an activating agent (sea water from surface layers) in the conditions of the Black Sea by mathematical modeling using finite element ...
Bondarenko, V, Prokopenko, K, Sai, K, Zhuravlov, D   +3 more
core   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source