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Mathematical Model of Two-Phase Spontaneous Imbibition with Dynamic Contact Angle
The phenomenon of spontaneous imbibition in porous media is of great importance in many scientific and technical fields, such as oil reservoirs and...
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High-spin-rate roll angle measurement method based on GPS using single patch antenna
The Global Positioning System (GPS) signals-based roll angle measurement methods are key technologies for spinning vehicles with side-mounted single...
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Research and Application of Key Technologies of Fixed Angle Perforation
Fixed-angle perforation technology, which can make each projectile in gun eject in the direction parallel to reservoir at the set angle, can be...
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Sparsity-promoting wide-angle least-squares one-way migration
For structural geology and geophysical exploration, it is of particular importance to get accurate images of salt domes, especially the subsalt...
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The research and implementation of velocity analysis methods for reverse time migration angle-gather
Reverse time migration can improve the imaging quality of complex medium evidently, compared with other imaging methods, but it requires higher...
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Mobilization of Cohesion and Friction Angle of Intact Rocks in the Shearing Process
The strength of intact rock materials is often linked to their cohesion and friction angle described by Mohr–Coulomb criterion. A common assumption...
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A generalized dilatancy angle equation of granular soil
This paper presents a generalized dilatancy angle equation of granular soil to cover not only the drained tests but also the undrained tests by...
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Shale Pore-Scale Numerical Simulation of Oil-Water Two-Phase Flow
The pore structure of shale is complex, including many micro-nano pores. The occurrence and flow patterns of fluids in the pore space of shale are...
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Phase angle master curves of sulfur-extended asphalt modified with recycled polyethylene waste
Master curves (MC) of mixtures and asphalt binders are typically implemented in the linear viscoelastic range for assessing their rheological...
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A systematic approach for identifying optimal azimuth and elevation angle masks in GNSS-IR: validation through a sea level experiment
GNSS-IR is a method that enables retrieving characteristics of the reflection surface by analyzing the interference between direct and coherently...
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A New Dilation Angle Model for Rocks
In this study, a new relation is presented to better describe the simultaneous dependence of dilation angle on the internal variable and the minimum...
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Failure behaviors of rainfall-induced shallow landslides: insights from a novel large angle-adjustable plane shear apparatus
Rainfall-induced shallow landslides can occur rapidly after intense or prolonged heavy rainfall, especially in mountainous areas. In this study,...
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Effect of Crack Angle on Mechanical Behaviors and Damage Evolution Characteristics of Sandstone Under Uniaxial Compression
Hydraulic fracturing has been extensively utilized to control strata in coal mines. However, the mechanical characteristics and damage evolution of...
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Study on the influence of fracture dip angle on mechanical and acoustic emission characteristics of deep granite
To study the influence of fracture dip angle on the mechanical properties and fracture evolution mechanism of granite under triaxial stress state,...
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GNSS signal ray-tracing algorithm for the simulation of satellite-to-satellite excess phase in the neutral atmosphere
Traditionally, GNSS space-based and ground-based estimates of tropospheric conditions are performed separately. It leads to limitations in the...
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Experimental Study on the Variation of Optical Imaging Characteristics with Zenith Angle due to Internal Solitary Waves in Sunglint
Internal solitary waves (ISWs) change the roughness of the sea surface, thus producing dark and bright bands in optical images. However, reasons for...
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Time Domain Full Waveform Inversion Based on Gradient Preconditioning with an Angle-Dependent Weighting Factor
There are lots of low wavenumber noises in the gradients of time domain full waveform inversion (FWI), which can seriously reduce the accuracy and...
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Estimation of phase center corrections for BDS satellites aligned to the IGS20 frame
Precise information about the phase center corrections (PCCs) for BeiDou satellite antennas is not only essential to the generation of high-precision...
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Role of Fractal Effect in Predicting Crack Initiation Angle and Its Application in Hydraulic Fracturing
In hydraulic fracturing, a prominent issue is to predict the crack initiation angle, especially for the directional fracturing process. However, the...
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Optimization of the Development Layer Series Under Various Periods for High Dip Angle Reservoirs
The N Block in West Africa exhibits high dip angle characteristics and have multiple sets of oil-bearing layer series. Commingled water injection was...