As an interdisciplinary subject of object detection, action recognition and visual relationship detection, human-object interaction (HOI) detection aims to identify the interaction between humans and objects in specific application scenarios. Here, recent work in the field of image-based HOI detecti...

Pedestrian flow statistics have an important value of research in the fields like intelligent security. In view of the low accuracy in pedestrian flow statistics of video surveillance systems, an intelligent statistic method of video pedestrian flow is proposed with small object features considered....

In order to extend the service life of the multi-stack fuel cell system (MFCS) and ensure that the overall degradation performance of each stack during operation gradually tends to be consistent, an MFCS adaptive power allocation method is proposed for the high-power proton exchange membrane fuel ce...

In order to reduce the large-scale variation in the output power of the single fuel cell during the operation of the multi-stack fuel cell system (MFCS), improve the average efficiency of the MFCS and ensure the long-term stable operation of each fuel cell, based on the forgetting factor recursive l...

In the AC/DC dual-system traction power supply system, the locomotive works in different power supply modes before and after phase breaking, which results in differences in traction return current characteristics and affects the combined rail potential distribution of different sections. A model for...

Figuring out the operation discharge characteristics of oil-paper insulation under different hydrostatic pressures can improve the operation and maintenance strategy of oil-paper insulation equipment, and can also provide a reference for the miniaturization and weight reduction of oil-paper insulati...

Lack of individual heterogeneity in traditional travel behavior models causes errors in the interpretation of real choice behaviors. In order to explore the influence of individual heterogeneity on travel choice behavior, firstly, a mixed logit based choice model and a latent-class conditional logit...

In order to improve the driving safety and traffic efficiency of connected and automated vehicle (CAV) at non-signalized intersection, firstly, a driving safety field model of non-signalized intersection is established, the objective function considering vehicle performance and traffic risk of all v...

To understand the evolutionary law of heterogeneous traffic flows in intelligent network, based on the improved NaSch model, the simulation experiments are conducted respectively for the early, middle and late stages of intelligent network connectivity, and the basic diagram of traffic flow is obtai...

In order to study the impact of optimal allocation of shared parking capacity on user travel choices, a two-level planning model is established. The upper model determines the optimal parking capacity of shared parking land based on the total revenue of the parking management platform and the minimu...

To reflect the complexity of real-life situation and to depict the distribution of engineering characteristic (EC) values associated with each alternative in an effective way, firstly, according to the theory of product planning house of quality (PPHoQ), interval linguistic variables are used by the...

In order to study the vibration and reliability of the transmission system during the operation of a high-speed train, the vibration acceleration data of the key components of the CRH3 high-speed train transmission system are collected for a real vehicle and the kernel density estimator (KDE) method...

To promote the application of biomass energy and reduce the country's dependence on fossil energy, a marine turbocharged diesel engine was transformed into a sequential turbocharged system diesel engine, and the combustion test of mixed biodiesel was carried out. When the propulsion characteristic i...

In view of the extensive application of curved fiber composite laminates in the lightweight design of high-speed train structures, the aeroelastic stability of elastic and viscoelastic variable-stiffness composite panels in a subsonic flow field was studied. First, classical thick theory along with ...

In order to minimize grinding amount in optimization design of heavy-haul rail grinding profile, an alignment and calculation method of the grinding amount of rail profile was established. Meanwhile, a comprehensive optimization evaluation model was designed. The model regarded wheel-rail wear index...

The existing ball screw degradation assessment method usually assumes that sufficient labeled data sets are available. However, it is difficult to obtain massive labeled data sets under practical projects due to excess failure cost and difficulty of obtaining labels. To solve the above problems, an ...

In order to study the longitudinal vibration characteristics of the stepped lifting pipe with a complex structure under the action of the ocean current and mining vessel heave motion, the longitudinal vibration performance of a 5000 m long lifting pipe was analyzed using the vibration theory of cont...

As there is angle deviation between the car body coordinate system and smarphone coordinate system, a systematic correction method for the smartphone coordinate alignment is proposed to make smartphone sensor data truly reflect the vibration acceleration of the vehicle body. This method corrects the...

An uneven humidity field forms inside double-block ballastless tracks long located in the water environment, and humidity will affect the mechanical properties of track structures. In order to study the macroscopic mechanical properties of concrete under different humidity conditions inside the doub...

The purpose of this study was to test and evaluate the stiffness of the damping pad of a floating slab track and to provide accurate calculation parameters for the dynamic simulation analysis of the floating track. In this study, the load application range of the damping pad test samples was calcula...

In order to study the axial compressive behavior of rectangular concrete-filled stainless steel tubular (CFSST) short columns, axial compression tests were conducted on seven groups of rectangular CFSST short columns with different cross-sectional sizes. The failure modes, load-displacement curves, ...

To accurately predict the full-range mechanical behavior of prestressed concrete composite box girders with corrugated steel webs (PCCBGCSWs) subjected to pure torsion, a theoretical model called “the improved softened membrane model for torsion (ISMMT)” was proposed based on the softened membrane t...

The concrete ring beam at the entrance of subway station is generally connected with the tunnel segment by bolts. The bolts are often embedded in the ring beam of subway station, and there is bond-slip deformation between the bolts and the concrete wrapping them. This may have an impact on the openi...

Conveyers on the bridge deck change the aerodynamic shape of the side girder. In order to explore the vortex-induced vibration performance and countermeasures of the side girder with a conveyer, a 1.00∶20.00 rigid segment model test of free suspension is carried out in wind tunnel. Firstly, the vort...

Flat box girder has been used in most long-span bridge because of its excellent flutter performance. To facilitate bridge designers to quickly evaluate the flutter performance of flat box girders in the preliminary design stage of long span bridges, a deep neural network model based on ensemble lea...

To make the stress obtained by hydraulic fracturing in a high geo-temperature environment more truly predict rockbursts, it is proposed that the thermal stress of rock masses generated by geothermal gradients should be considered during the rockburst prediction. Combined with the theory of elasticit...

In order to investigate the characteristics of slope with bedrock induced by rainfall, the failure process and mechanism of slope with bedrock under rainstorm were studied systematically by laboratory model test. The variation characteristics of soil moisture content and pore water pressure in time ...

Weak layers have a significant effect on the stability of slopes. The stability of slopes is usually calculated by the limit equilibrium method in current designs, in which multiple equilibrium equations need to be established and solved. Compared with the limit equilibrium method, the limit analysi...