Search Results - "Journal of Harbin University of Science and Technology"

Aiming at the problem of poor scale invariance of traditional ORB algorithms, this paper proposes an ORB algorithm based on image golden tower. Firstly, Gauss image pyramid and B-Spline image pyramid are studied, and the two image pyramids are discussed through experiments. Experimental results show...

Full description

Navigation and positioning technology is the core technology for UAV to perform tasks stably. In this paper, the tight integrated navigation algorithm of Inertial Navigation System (INS) and Ultra Wide Band (UWB) is studied to meet the needs of UAV indoor navigation and positioning. Firstly, the st...

Full description

In order to perform fault early warning on the secondary protection devices of smart substations based on monitoring data, a trend analysis and early warning method of smart substation telemetry data based on the ARIMA-BP combined model is proposed.Based on the analysis of the relay protection fa...

Full description

As the basic cutting tool of cutting, how to improve the performance of cutting tools is a hot topic in current research.The bionics research shows that the limpets teeth have excellent mechanical properties, which provides a basis for the optimization design of the cutting tool.The internal and...

Full description

Based on density functional theory (DFT),the clusterNiCo2S4was optimized at B3LYP/Lan12dz level in order to determin eleven optimized configurations and analyze their polarity and bonding properties.The results showed that the polarity of configuration 1(3) is the largest and the polarity of conf...

Full description

Double-break high speed switch is the important equipment for the EHV transmission system， but the motor control system of the switch cannot satisfy the synchronous requirements. In order to solve the synchronous error problem of the double motors system， based on cross-coupled control， an improved...

Full description

The magnetorheological elastomer is a magnetic control intelligent material that is prepared by the micron magnetic particles dispersed to the polymer elastomer ，which not only has the excellent mechanical properties of the particle enhancement composite material，but also has the rapid，co...

Full description

Aiming at the problem of poor accuracy and robustness of the existing visual place recognition methods when the image appearance changes and the viewing angle changes, a visual place recognition method combined with the attention mechanism is proposed. Firstly, we use the convolutional neural networ...

Full description

Thestructureof spool throttlegrooveof hydraulicspool valvehasadirect influenceon thestressdeformationof spool andthedistributionof internal flowfield. Inthispaper,taking4WE6Etypechange-overvalveastheresearchobject,anewcombined groovestructureisproposedonthetraditional spool throttlegroovestructu...

Full description

The cluster submarine cable is an important equipment for the offshore oil development platform, which has the characteristics of large cross-section, complex structure, long laying path and complex and changeable characteristics.The complex and changeable laying environment makes the rated current...

Full description

To address the application requirements of indicator question-and-answer (Q&A) in the electricity industry, this paper researches a natural language understanding model for balancing performance, computing resource consumption, and inference time, and proposes a method to incorporate an early st...

Full description

In order to improve the detection accuracy of SSD (Single Shot MultiBox Detector), an A-SSD (Anchor-object SSD) object detection algorithm based on Anchor-object matching is proposed. In the feature extraction part of the algorithm, parallel convolution and hole convolution are used to form the rece...

Full description

To solve the problem of misjudgment and loss of valid information caused by a large amount of irrelevant information in aquaculture long text, a joint extraction method of entity relations based on N-Gram fusion was proposed. Firstly, the multi-model fusion algorithm is used to extract the text matr...

Full description

Aiming at the problems of inaccurate facial expression recognition and large amount of calculation under multi-perspective in real life, a facial expression recognition model MVResNet-FER is proposed, which is based on multi-perspective feature fusion under deep residual convolution.The residual...

Full description

This article proposes an Interactive Dependent Multi-head Graph Attention (IDM-GAT) model for short text sentiment analysis based on dependent multi-head graph attention, which addresses the shortcomings of existing methods for short text sentiment analysis , such as non-compliance with conventiona...

Full description

In order to meet the requirements of CCAR-25-R4 airworthiness certification for civil aircraft components of structural topology optimization using additive manufacturing, a static verification scheme was established based on the actual working conditions for the gooseneck chain on the civil aircraf...

Full description

Community structure is a type of node aggregate that exists on both a micro and macro scale, and it is critical to fully comprehend the behavior and law of social network users.Traditional community detection approaches presume that all nodes in a network have the same status, neglecting the infl...

Full description

To overcome the issue of repairing mold surface failure, the parameters of the laser cladding Ni/SiC process is optimized using numerical simulation.The different laser currents, scanning speeds and defocusing are adjusted to optimize simulation result of laser cladding.Meanwhile, the influence of t...

Full description

In view of the challenges brought by computer viruses and network malicious attacks to the operation and maintenance of the recruitment intelligent platform system, this paper proposes a method to detect abnormal traffic of the recruitment smart platform based on feature dimensionality reduction com...

Full description

With the rapid development of electric vehicles，V2G technology can greatly reduce the energy cost of users in the home energy management system，but V2G will affect user travel. This paper proposes an optimization strategy for home energy management system based on users' commuting behavior....

Full description