Results 1 to 10 of about 792,178 (100)

Cathodic protection of precast, prestressed multistory car park slabs, using a surface applied galvanic zinc layer anode [PDF]

open access: yesMATEC Web of Conferences, 2022
A surface applied galvanic Zinc Layer Anode (ZLA) system was installed on a multistory carpark structure to provide cathodic protection to the soffits of the prestressed hollow concrete slabs, which were suffering from chloride induced corrosion ...
Giorgini Roberto   +4 more
doaj   +1 more source

Experimental Investigation on the Propagation of Hydraulic Fractures through Coal-Rock Interfaces

open access: yesAdvances in Materials Science and Engineering, 2021
Although hydraulic fracturing has been one of the primary stimulation methods for coal-bed methane (CBM) exploration, it is difficult to be applied in soft and low-permeability coal seams due to the instability of wells in such geological structures.
Pengfei Wu   +5 more
doaj   +1 more source

Investigation on the Effect of Atmosphere on the Pyrolysis Behavior and Oil Quality of Jimusar Oil Shale

open access: yesGeofluids, 2022
High-temperature H2O and CO2 can improve the pyrolysis behavior of oil shale. Therefore, in this paper, Jimusar oil shale was selected as the research object and the effect of the reaction atmosphere (H2O, CO2, and N2) on its pyrolysis behavior ...
Zhiqin Kang   +5 more
doaj   +1 more source

Waffle Method: A general and flexible approach for improving throughput in FIB-milling

open access: yesNature Communications, 2022
Here the authors describe the Waffle Method, aimed at increasing the throughput of and solves several challenges present in cryo-FIB/SEM sample preparation for cryo-ET analysis — the highest-resolution method for obtaining 3D views of native biological ...
Kotaro Kelley   +10 more
doaj   +1 more source

Coal Permeability Variation during the Heating Process considering Thermal Expansion and Desorption Shrinkage

open access: yesAdsorption Science & Technology, 2022
In order to explore the influence of coal deformation caused by temperature and desorption on seepage characteristics in the process of heat injection mining of coalbed methane, the permeability test, thermal expansion, and constant temperature ...
Xiaoyu Su   +3 more
doaj   +1 more source

Extensible LED-Induced Integrated Fluorescence Detection Module for Quantitative Analysis of Lucigenin Concentration

open access: yesPhotonics, 2023
We developed an extensible LED-induced fluorescence detection module with a highly integrated and ultra-compact structure. A target-oriented design methodology was used to demonstrate the module’s optimal design.
Xiaoguang Qi   +5 more
doaj   +1 more source

Study on the pyrolysis behavior and kinetics of Jimusar oil shale with H2O/CO2 injection [PDF]

open access: yesOil Shale, 2023
High-temperature water vapor (H2O) and carbon dioxide (CO2 ) improved the yield and quality of shale oil during oil shale pyrolysis. Aiming to fill knowledge gaps regarding the kinetic mechanism of oil shale pyrolysis in different atmospheres, the ...
Dongwei Huang   +5 more
doaj   +1 more source

Effect of electric field on the adsorption characteristics of heavy metal ions on kaolinite surface

open access: yesMeitan xuebao, 2023
Electrokinetic remediation technology can effectively remove heavy metal ions from contaminated soil in coal mine area. In order to clarify the effect of electric field on the adsorption characteristics of heavy metal ions on the surface of kaolinite ...
Ke YAN   +5 more
doaj   +1 more source

Design and Application of a Nitrate Measurement System Based on a Narrowband Tunable Ultraviolet Light Source

open access: yesIEEE Access, 2021
The nitrate concentration in seawater is an important parameter for marine environment monitoring, which is of great significance for the analysis of seawater ecosystems.
Xingyue Zhu   +3 more
doaj   +1 more source

Characteristics of oil and gas production of oil shale pyrolysis by water vapor injection [PDF]

open access: yesOil Shale, 2022
An appropriate pyrolysis temperature is required to achieve the best-quality oil and gas products via kerogen pyrolysis for the application of the in situ shale exploitation technology.
Jing Zhao   +3 more
doaj   +1 more source

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