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Different Prevention Effects of Ventilation Dilution on Methane Accumulation at High Temperature Zone in Coal Mine Goafs

open access: yesEnergies, 2023
In coal mine goafs, spontaneous combustion of coal can result in methane accumulation, which raises the danger of methane explosion disasters. As an atmospheric control tool, ventilation is applied to ensure air quality for avoiding disasters in ...
Lin Li   +5 more
doaj   +1 more source

Healthy Work Environments: An Interprofessional Partnership Model to Promote Positive Workplace Culture

open access: yesInterdisciplinary Journal of Partnership Studies, 2022
Background: Healthy work environments (HWEs) are a primary focus of leaders in health care. Many nurse- specific HWE initiatives exist to improve workplace culture; however, workplace harm persists.
Judith Pechacek   +3 more
doaj   +1 more source

A New Evaluation Method for Water Blocking Performance of Coal Seam Floor: Model Construction, Case Application, and Water-Preserved Strategy

open access: yesGeofluids, 2022
In order to scientifically guide the water-preserved mining of the coal seam floor and make up for the shortcomings in the conventional evaluation of water blocking performance of the coal seam floor, according to the system resilience theory, the ...
Baobin Gao, Chuangnan Ren, Shaopeng Song
doaj   +1 more source

Study on Dynamic Behavior Law and Microseismic Monitoring in Stoping Process of Roadway with High Gas and Wide Coal Pillar

open access: yesShock and Vibration, 2021
In order to study the dynamic characteristics and microseismic distribution in the mining process of roadway with high gas and wide coal pillar, combined with the two dynamic events of N2105 working face in Yuwu Coal Industry, theoretical analysis and ...
Baobin Gao   +3 more
doaj   +1 more source

Research and application of pressure relief and permeability improvement in high gas outburst mines by directional drilling and hydraulic jet

open access: yesFrontiers in Earth Science, 2023
Efficient gas extraction technology is an important topic for low permeability and high gas outburst coal seam. Based on the engineering background of Hudi Coal Mine with the soft and hard coal seams and the existing hydraulic permeability enhancement ...
Dingqi Li   +3 more
doaj   +1 more source

Grouting Fractured Coal Permeability Evolution Based on Industrial CT Scanning

open access: yesGeofluids, 2021
Gas extraction from coal seams in China faces various middle-term and long-term problems, such as the poor sealing quality and low extraction rate. The mean gas extraction concentration is only 30%.
Li Tao   +3 more
doaj   +1 more source

Assembled design and compressive performance simulation of mine waterproof wall based on concrete 3D printing

open access: yesFrontiers in Earth Science, 2022
With the increase of mining depth, the deep mine waterproof wall project faces the test of worse construction environment and higher risk of water damage.
Chuangnan Ren   +8 more
doaj   +1 more source

Severe Damage Law on the Ground Surface Induced by High-Strength Mining: A Case Study From the Shendong Coal Field in China

open access: yesFrontiers in Earth Science, 2022
High-strength mining has the characteristics of shallow buried depth, large mining height, and fast mining speed. Under the condition of high-strength mining, the overburden moves violently and the surface damage is serious.
Weitao Yan   +6 more
doaj   +1 more source

Influence of Deformation and Instability of Borehole on Gas Extraction in Deep Mining Soft Coal Seam

open access: yesAdvances in Civil Engineering, 2021
To study the effects of the three deformation instability modes of gas drainage borehole on gas drainage, the deformation instability mechanism of soft coal seams is analyzed, three deformation instability modes are proposed for soft coal seams, namely ...
Xue-Bo Zhang   +4 more
doaj   +1 more source

Psychometric analysis of the Dutch language Facilitative Interpersonal Skills (FIS) video clips

open access: yesResearch in Psychotherapy, 2021
With the motivation of investigating the replicability and transferability of the findings employing the Facilitative Interpersonal Skills (FIS) performance task beyond Anglophone countries, a set of Dutch FIS clips have been scripted and recorded.
Sabine van Thiel   +5 more
doaj   +1 more source

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