Results 1 to 10 of about 3,350,452 (214)

Environmental Regulation, Environmental Decentralization, and Enterprise Environmental Protection Investment: Evidence From China

open access: yesFrontiers in Public Health, 2022
The microeconomic behavior of enterprises is influenced by the government system and its policies. In this article, we investigate how environmental regulation and environmental decentralization affect enterprise environmental protection investment using
Li Liu   +3 more
doaj   +2 more sources

Environmental Regulation, Promotion Pressure of Officials, and Enterprise Environmental Protection Investment

open access: yesFrontiers in Public Health, 2021
This study expands on the impact of local government environmental regulation on enterprise environmental protection investment. Furthermore, it analyzes the influence promotion pressure of officials has on the scale of enterprise environmental ...
Ke-Chiun Chang   +6 more
doaj   +2 more sources

Effect of fiber type and content on mechanical properties of microbial solidified sand

open access: yesFrontiers in Materials, 2023
Fibers are applied to construction works to improve the strength and brittle failure of the soil. In this paper, fibers with a length of 6 mm are added to the microbial cemented sand, and fiber types and content are research variable.
Xiaogang Zhang   +4 more
doaj   +1 more source

Deterioration Mechanism and Constitutive Model of Coal Subjected to Drying-Wetting Cycles of Salty Mine Water

open access: yesLithosphere, 2022
The stability of coal pillar dams is influenced by cyclic fluctuations of salty water from underground reservoir. Subjected to long-term drying-wetting cycles in salty solution, the microstructure and surface topography of coal dams can be significantly ...
Min Wang, Xun Xi, Qifeng Guo
doaj   +1 more source

Membrane distillation treatment of high-salinity mine water

open access: yesMeitan xuebao, 2023
The main coal producing areas in western China have the problems of dry climate and water shortage, and the mine water produced by coal mining generally has the characteristics of high salinity and high hardness.
Qiang GUO   +6 more
doaj   +1 more source

Review on the purification mechanism of mine water by coal mine underground reservoir

open access: yes矿业科学学报, 2023
The purification effect of coal mine groundwater reservoir on mine water mainly lies in the water-rock coupling between the rock mass and mine water.This paper systematically reviews the research methods of water-rock coupling in coal mine underground ...
Jiang Binbin   +5 more
doaj   +1 more source

Embedded Neoliberalism and the Legitimacy of the Post-Lisbon European Union Investment Policy

open access: yesPolitics and Governance, 2022
Much has been written about the ongoing legitimacy crisis of the global investment treaty regime and the system of investor-to-state dispute settlement (ISDS).
Bart-Jaap Verbeek
doaj   +1 more source

Application Analysis of Flue Gas Condensation Recovery in Coal-fired Power Plants by Spraying Method

open access: yesZhongguo dianli, 2023
The flue gas reaches wet saturation state after wet desulfurization tower in coal-fired power plant, and directly discharged will lead to large amount of moisture loss.
Chao YI, Da TENG, Shaowei SONG, Ou CHEN
doaj   +1 more source

Enhanced Efficiency of the Sieve Tray in a Desulfurization Spray Scrubber

open access: yesFrontiers in Energy Research, 2022
The wet flue gas desulfurization (WFGD) system is widely used in coal-fired power plants worldwide. Improving its efficiency is very important for economical running. In this study, SO2 removal by the spray scrubber by adding a new sieve tray was studied
Wu Qirong   +6 more
doaj   +1 more source

Distribution characteristics and formation mechanism of fluoride in typical mine water in Shendong Mining Area

open access: yesMeitan kexue jishu, 2023
Shendong mining area is located in the north of Shaanxi Province and the south of Ordos City, Inner Mongolia, with dry climate, sparse precipitation and water resources scarcity.
Simin YANG, Jingfeng LI, Lu BAI
doaj   +1 more source

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