Results 11 to 20 of about 3,193,195 (208)

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

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

Rapidly self-deoxygenating controlled radical polymerization in water via in situ disproportionation of Cu(i) [PDF]

open access: yes, 2020
Rapidly self-deoxygenating Cu-RDRP in aqueous media is investigated. The disproportionation of Cu(I)/Me6Tren in water towards Cu(II) and highly reactive Cu(0) leads to O2-free reaction environments within the first seconds of the reaction, even when the ...
Haddleton, David M.   +4 more
core   +1 more source

Evolution of mining‐induced stress in fully mechanized top‐coal caving under high horizontal stress

open access: yesEnergy Science & Engineering, 2020
In fully mechanized top‐coal caving (FMTC), the effects of coal caving are closely related to the degree of damage to the top‐coal which is determined by the stress state therein.
Yuming Huo   +4 more
doaj   +1 more source

Superconducting MgB2 thin films by pulsed laser deposition [PDF]

open access: yes, 2001
Growth of MgB2 thin films by pulsed laser deposition is examined under ex situ and in situ processing conditions. For the ex situ process, Boron films grown by PLD were annealed at 900 C with excess Mg.
C. Petrovic   +8 more
core   +4 more sources

Performance and Mechanism Analysis of Nano-silica Sol Modified Cement-based Materials

open access: yesTaiyuan Ligong Daxue xuebao, 2023
In view of the problems of low early strength and weak deformation resistance of ordinary cement-based materials, the cement-based materials were modified by nano-silica sol.
Haocheng SUN   +5 more
doaj   +1 more source

In-situ monitoring for CVD processes [PDF]

open access: yes, 2002
Aiming towards process control of industrial high yield/high volume CVD reactors, the potential of optical sensors as a monitoring tool has been explored.
A. Beil   +14 more
core   +3 more sources

Effects of preconditioning and extrusion of linseed on the ruminal biohydrogenation of fatty acids. 2. In vitro and in situ studies [PDF]

open access: yes, 2006
The extent and/or intermediates of ruminal biohydrogenation (BH) of fatty acids (FA) were investigated in vitro and in situ using a raw, pre-conditioned or extruded blend of linseed and wheat bran (70:30).
Akraim, Fowad   +3 more
core   +1 more source

Prediction of in situ strengths and matrix cracking in composites under transverse tension and in-plane shear [PDF]

open access: yes, 2006
A criterion for matrix failure of laminated composite plies in transverse tension and in-plane shear is developed by examining the mechanics of transverse matrix crack growth.
Allen   +39 more
core   +1 more source

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