Results 21 to 30 of about 7,226,515 (300)

Influence of depressurization rate on gas production capacity of high-rank coal in the south of Qinshui Basin, China

open access: yesPetroleum Exploration and Development, 2019
A desorption simulation experiment with the condition of simulated strata was designed. The experiment, under different depressurizing rates and the same fluid saturation, was conducted on the sample from 3# coal of Daning coal mine in Jincheng, Shanxi ...
Xuefeng SU   +5 more
doaj   +1 more source

Space-ground integration system of methane emission monitoring and quantification: cases in Dongying, China

open access: yesFrontiers in Earth Science
Calibrating traditional inventory-based emission estimates with top-down point source inversion results is of significant importance. To address the challenges posed by satellite remote sensing in accurately assessing methane point source emissions and ...
Hu He   +6 more
doaj   +1 more source

Test-field method for mean-field coefficients with MHD background

open access: yes, 2010
Aims: The test-field method for computing turbulent transport coefficients from simulations of hydromagnetic flows is extended to the regime with a magnetohydrodynamic (MHD) background.
Brandenburg, A., Rheinhardt, M.
core   +3 more sources

Testing two-field inflation

open access: yesPhysical Review D, 2011
Revised to match accepted PRD version: Improved discussion of background kinematics and multi-field effects, added tables summarizing key quantities and their links to observables, more detailed figures, fixed typos in former equations (103) and (117).
Peterson, Courtney M., Tegmark, Max Erik
openaire   +4 more sources

Wedge splitting test: Displacement field analysis by multi-parameter fracture mechanics [PDF]

open access: yes, 2018
Multi-parameter fracture mechanics is nowadays quite extensively applied when cracked structures/specimens are investigated. The reason was that it has been shown that it can be helpful and bring results that are more accurate when for describing of ...
Maliková, Lucie   +4 more
core   +1 more source

Assessment of Multiple Planetary Boundary Layer Height Retrieval Methods and Their Impact on PM2.5 and Its Chemical Compositions throughout a Year in Nanjing

open access: yesRemote Sensing
In this study, we investigate the planetary boundary layer height (PBLH) using micro-pulse lidar (MPL) and microwave radiometer (MWR) methods, examining its relationship with the mass concentration of particles less than 2.5 µm in aerodynamic diameter ...
Zhanghanshu Han   +9 more
doaj   +1 more source

Field Test Research on the Downhole Multiphysics Micro-Measurer Based on the MEMS Microchip

open access: yesFrontiers in Earth Science, 2023
Since pressure while drilling (PWD) has the disadvantages of single-point measurement and high cost of application, a micro-measurer based on MEMS (micro-electromechanical systems) sensor technology, which can measure downhole temperature, pressure ...
Mu Li   +9 more
doaj   +1 more source

Field test of quantum key distribution in the Tokyo QKD Network [PDF]

open access: yes, 2011
A novel secure communication network with quantum key distribution in a metropolitan area is reported. Different QKD schemes are integrated to demonstrate secure TV conferencing over a distance of 45km, stable long-term operation, and application to ...
A. Allacher   +88 more
core   +2 more sources

ANALYTICAL SOLUTION AND FIELD TEST OF CRITICAL BEARING CAPACITY ANDSETTLEMENT OF PILE TIP [PDF]

open access: yesCivil Engineering Journal, 2020
In order to explore the relationship between the critical bearing capacity and settlementof closed pile tip pierced into the soil, based on the Boussinesq solution and the Kelvin solution, the analytical solution between the critical bearing ...
Suchun Yang   +3 more
doaj   +1 more source

Acceleration of charged particles due to chaotic scattering in the combined black hole gravitational field and asymptotically uniform magnetic field [PDF]

open access: yes, 2015
To test the role of large-scale magnetic fields in accretion processes, we study dynamics of charged test particles in vicinity of a black hole immersed into an asymptotically uniform magnetic field.
Kološ, Martin, Stuchlík, Zdeněk
core   +2 more sources

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