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Migration and Distribution Characteristics of Proppant at the Corner of Horizontal Fracture Network in Coal Seam

open access: yesFrontiers in Earth Science, 2021
A complex fracture network is composed of many similar structures. The migration law of proppant at each structure is the core and basic content of the migration law of proppant in complex fracture network, and there is little research.
Qingying Cheng   +6 more
doaj   +1 more source

Investigation of groundwater characteristics and its influence on Landslides in Heifangtai Plateau using comprehensive geophysical methods

open access: yesJournal of Groundwater Science and Engineering, 2023
The occurrence of landslides in Heifangtai plateau is primarily caused by the rise in water levels due to irrigation. To accurately understand the distribution of groundwater and its impact on the landslide hazard, a combination of Electrical Resistivity
Feng-dan Yu   +3 more
doaj   +1 more source

Pathogens of patients with fever with rash syndrome in Gansu province, 2009 – 2019: a multiple correspondence analysis

open access: yesZhongguo gonggong weisheng, 2022
ObjectiveTo examine characteristics of pathogens identified among patients with fever and rash syndrome (RFIs) in Gansu province from 2009 to 2019, and to provide a reference for implementing targeted prevention measures and conducting pathogen ...
Jian-hui ZHOU, Lei MENG, Li-juan WANG
doaj   +1 more source

DISTRIBUTIVE CHARACTERISTICS OF COMBINING

open access: yesGermanic Philology Journal of Yuriy Fedkovych Chernivtsi National University, 2021
The article is devoted to the study of distributive characteristics of combining forms in Modern English. The material of the study is words and terms taken from the Modern English dictionaries. A number of general scientific (analysis, synthesis, induction, deduction, observation, classification, systematization), as well as purely linguistic methods (
Olena Kruhlij, Oksana Cherniak
openaire   +2 more sources

Experimental Study on the Distribution Characteristics of CO2 in Methane Hydrate-Bearing Sediment during CH4/CO2 Replacement

open access: yesEnergies, 2022
CH4/CO2 replacement is of great significance for the exploitation of natural gas hydrate resources and CO2 storage. The feasibility of this method relies on our understanding of the CH4/CO2 replacement efficiency and mechanism.
Jianye Sun   +9 more
doaj   +1 more source

The Source and Distribution of Tetracycline Antibiotics in China: A Review

open access: yesToxics, 2023
In recent years, antibiotics have been listed as a new class of environmental pollutants. Tetracycline antibiotics (TCs) used in human medical treatment, animal husbandry and agricultural production are the most widely used antibiotics. Due to their wide
Donghao Chang   +4 more
doaj   +1 more source

Genomic Characteristics Distinguish Geographically Distributed Dehalococcoidia [PDF]

open access: yesFrontiers in Microbiology, 2020
Dehalococcoidia (Dia) class microorganisms are frequently found in various pristine and contaminated environments. Metagenome-assembled genomes (MAGs) and single-cell amplified genomes (SAGs) studies have substantially improved the understanding of Dia microbial ecology and evolution; however, an updated thorough investigation on the genomic and ...
Yi Yang   +4 more
openaire   +3 more sources

Environmental Risk Source Analysis and Classification of Zones: Subway Construction

open access: yesApplied Sciences, 2023
Examining the environmental risk sources of regional subway construction is crucial for ensuring construction safety and providing guidance for future subway line planning.
Yangchun Yuan   +5 more
doaj   +1 more source

Distribution characteristics and enrichment mechanism of TDS geothermal water in Xining Basin

open access: yes地质科技通报, 2022
The high concentration of TDS in most of the geothermal water in Xining Basin greatly restricted the availability of geothermal water.In order to provide reference value for the later development and utilization of geothermal resources, the enrichment ...
Hongli Sun, Guiling Wang, Wenjing Lin
doaj   +1 more source

Quantitative Characterization Method of Microscopic Remaining Oil Distribution and Its Application in Laboratory Displacement Experiments [PDF]

open access: yesJournal of Petroleum Science and Technology, 2021
The study of microscopic remaining oil is of great significance for the effective development of reservoirs after water flooding. An observation and quantitative characterization method of occurrence states of remaining oil on pore scale is proposed in ...
Tao Jiang   +3 more
doaj   +1 more source

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