Summary We are interested in the development of surrogate models for prediction field saturations using a fully convolutional encoder/decoder network based on dense (DenseNet; Huang et al. 2017), similar to approaches used image/image-regression tasks deep learning. In model, encoder automatically extracts multiscale features from raw input data, and decoder then uses these data recover image resolution at output model. The multiple influencing factors is considered make our model more...

Abstract Hyperpycnal flow deposits, one of the most important deep‐water gravity‐flow deposits in lacustrine basins, have become research focus recent years. However, sedimentary characteristics and depositional model hyperpycnal basins remain unclear due to differences settings between marine environments. observed middle third member Shahejie Formation (Es3z) Bonan Sag, Bohai Bay Basin, Eastern China, provide a rare case study reveal basins. For first time, detailed core analysis,...

Posture of an aircraft fuselage can be evaluated based on the coordinate values measure points fixed in final assembly. adjustment is carried out by rotation and translation to make sure that actual are coincided with theoretical ones read from computer aided design (CAD) model. The point registration method posture without considering engineering constraints may cause out-of-tolerance for some constraints. Hence, such as plane symmetry two points, well coplanar collinear multipoint should...

Gravity flows may be triggered by different initiation processes in both marine and lacustrine basins. Recognizing the of gravity flow based on their deposits is vital to accurately establish gravity-flow sandstone distribution, which important for defining paleogeography efficient oil gas exploration. Gravity-flow Dongying sag were analyzed using three-dimensional seismic, well-log, grain size, porosity permeability data, along with core descriptions. Eleven lithofacies, nine bed types, six...

The types, evolution processes, formation mechanisms, and depositional models of deep-water gravity flow deposits in a lacustrine rift basin are studied through core observation systematic analysis. Massive transport slide slump, fluid debris turbidity currents driven by environment. transformation between current, the current supercritical subcritical conditions main dynamic mechanisms lake basin. erosion controls gravity-flow channel. Debris deposition gives rise to tongue shape lobe...

Abstract Deep‐water gravity flows are one of the most important sediment transport mechanisms on Earth. After 60 years study, significant achievements have been made in terms classification schemes, genetic mechanisms, and depositional models deep‐water flows. The research history can be divided into five stages: incipience turbidity current theory; formation development flow improvement perfection comprehensive theory. Currently, three primary schemes based support mechanism, rheology...

In order to analyze the transmission performance of face-gear in real working condition, a calculational approach for load equivalent error alignment has been investigated with purpose analyzing support system and tooth deformation drives. Then, equations contact path loaded analysis have established based on alignment. For bearing contact, curvatures pinion presented. Tooth bending developed using elasticity three-dimensional FEA. Loaded stress considered simulate meshing gear surfaces...

Abstract Pressure Index (PI) is a significant parameter, which commonly used for profile control project design and injection well performance analysis in China, due to its simple economical application. However, PI can only reflect the current fluid flow capacity present heterogeneity of formation. It’s known that formation structure will change distinctly after long-term waterflooding pressure variation in-situ heterogeneity, during thief zones or high-conductive channels may come into...

Purpose – The purpose of this study is to investigate wet multi-disc brake temperature field and optimal oil supply under continuous braking condition. has a direct impact on the drivability fuel economy for tracked vehicles. Too small flow will result in higher failure while excessive one lead slow engagement increasing disengaged torque transmission efficiency could decline notably. were obtained research. Design/methodology/approach This article investigated heat dissipation capability by...

Face-gear drives have been applied in aviation transmissions, particular, helicopter and the lubrication characteristics are an important indicator for estimating load-carrying capacity of face-gear teeth. In order to analyze performance face gear under load, equations contact path loaded tooth analysis (LTCA) were established on basis load equivalent error alignment (LEEA) distribution among teeth was calculated. Then a method calculating area surface velocity studied. isothermal...

The mesh stiffness and contact ratio of gear drive are very important factors which have a great impact on the dynamic load. Contact also affects fluctuation mode change stiffness. In this research, novel high internal with circular arc path is introduced. However, irregular tooth profile non-involute usually causes numerical calculation to be more complex. To get torsional pair spur gear, two-dimensional finite element models involute presented compared. addition, influence input torque...

It is seen that the relative motion between friction and separate plates causes drag torque of disengaged wet clutch, which reduces efficiency automatic transmission. A mathematical model was presented in this paper to study effects grooves waviness on plate during disengagement clutch. The modified Reynolds equation lubricant film derived from governing equations by considering centrifugal effect. finite difference method applied solve equation, shape size groove were described thickness at...

The load spectrum is the basis of performing reliability and fatigue life analysis for structures tracked vehicles. In order to obtain spectrum, cycles should be extracted from measured or simulated time history using rainflow counting method. After that, distribution can modeled by a continuous function. For purpose finding common modeling method effective parameters’ estimation we used mixture multivariate Gaussian functions model probability density function general on cycles....

Scene Text Detection (STD) is critical for obtaining textual information from natural scenes, serving automated driving and security surveillance. However, existing text detection methods fall short when dealing with the variation in curvatures, orientations, aspect ratios complex backgrounds. To meet challenge, we propose a method called CA-STD to detect arbitrarily shaped against complicated background. Firstly, Feature Refinement Module (FRM) proposed enhance feature representation....

Wet clutch transmits its power by the friction torque between and separate disks. Conical groove disk is a new attempt in clutch. Its configurations allow significant enhancement of delivery performances, compared with traditional plane disk. In order to study frictional performances conical configuration, coefficient calculation model was established, experimental investigation used measure under sliding velocity conditions. The influence configuration parameters: cone heights angles on...

Abstract Field-wide flow patterns for the 25-year waterflood production history of medium-high permeability Gudong field, China have been carefully studied using a flow-based numerical simulation process. Through matching, field-wide streamline and cu1mulative between injector/producer well pairs can be displayed graphically quantitatively via allocation factors. By analyzing pattern or fields (field-wide locally) each time step through reservoir history, Predominant Streamline Fields (PSF)...