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Journal of Harbin University of Science and Technology
ISSN 1007-2683 · Harbin University of Science and Technology Publications · 1.203 artikel di indeks
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Artikel Jurnal
A Motor Insulation Life Prediction Model Combining Improved PSO Algorithm and CNN-GRU
A motor insulation life prediction model combining improved PSO algorithm and CNN-GRU ( IPSO-CNN-GRU) is proposed to address the issues of improving the efficiency and accuracy of motor insulation life prediction. Firstly, in order to obtain spatiotemporal feature information from the original…
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Influence of Magnetic Slot Wedges on the Flux Density and Losses of Large Variable Speed Pumped Storage Generator-Motor
In order to study the influence of magnetic slot wedge on the flux density and losses in the large variable speed pumped storage generator-motors, a two-dimensional electromagnetic field finite element model of 326 MW variable speed pumped storage generator-motor is established. The waveforms of…
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Optimal Selection System for Femoral of Internal Fixation Methods Neck Fracture
In order to avoid the adverse consequences caused by anthropogenic factor in the femoral neck fracture surgery and meet the requirements of selecting the most reasonable internal fixation way by using PC, from the viewpoint of biomeehanics, an optimal selection system of internal fixation methods…
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In-situ Preparation and Properties of SiCnw / SiC Porous Ceramic Composites
In order to study the application of SiC porous ceramic composites in the field of electromagnetic shielding, SiC nanowires (SiC nw ) were grown in situ by the gel-injection molding method and the template method by sintering at 1100℃. The growth of SiC nw and the changes in the properties of the…
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Artikel Jurnal
Stochastic C-Stability and B-Consistent of Projective Backward Euler-Maruyama Methods
In some practical research scenarios, the development of related research work can rely solely on numerical solutions, and the analytical solutions of a large number of stochastic differential equations cannot be directly obtained. Therefore, the importance of various numerical methods in the…
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Artikel Jurnal
Hopf Bifurcation of a Delayed Predator Model with Prey Refuge and Fear Effect
In order to investigate the effects of time delay on the dynamical behavior of prey and predator with prey refuge and fear effect, a time-delay predator-prey model with prey refuge and fear effect is established. Firstly, by considering the time-delay response of the prey population as the…
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Detection of Gas Leakage Concentration of Heptafluoroisobutyronitrile Based on Infrared Spectroscopy
The basic research and key technology research on new environmentally friendly gases such as heptafluoroisobutyronitrile (HFIBN) gas mixture as insulating medium in high-voltage equipment have matured, and new environmentally friendly power equipment systems have been connected to the grid all over…
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A Method for Foreign Object Detection on Power Transmission Lines Using an Improved YOLOv4-tiny Algorithm
With the advancement of drone-mounted target detection algorithms in the field of intelligent inspection of power transmission lines, challenges such as low detection accuracy and large model sizes that impede deployment have become apparent. To address these issues, an improved YOLOv4-tiny-based…
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Study on the Phase Transformation Model of the Internal Cavitation Generation Unit
In order to explore the phase transformation model of the cavitation unit of the internal cavitation, the geometric model of the cavitation generation unit is first established, and the mathematical model of the bottom pressure of the cavitation generation unit is derived according to the…
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Artikel Jurnal
Optimization of Structural Parameters of Automobile Wheel Attitude Parallel Measurement System
With the advancement of modern automotive technology, ensuring the precise measurement and control of wheel posture has become a key factor in enhancing vehicle safety and handling performance. In response to this demand, a parallel measurement structure for the attitude of automotive wheels based…
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Research on Three-dimensional End Electromagnetic Field and Loss of Variable Speed Pumped Storage Generator-motor at Sub-synchronous Speed
Accurate calculation of three-dimensional end component losses is key to electromagnetic design and temperature rise calculation of large variable speed pumped storage generator-motor. In order to study the three-dimensional end electromagnetic field and end component losses of large variable speed…
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Artikel Jurnal
A Remote Non-invasive Power Error Monitoring Method for Electric Meters Based on Monte Carlo
Accurate measurement of electrical energy is crucial for power grids, industrial applications, and residential users in modern power systems. Therefore, monitoring and calibrating electricity meters to ensure measurement accuracy is a critical issue. This paper proposes a remote error monitoring…
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Artikel Jurnal
Intrusion Detection Based on BiLSTM and CNN for Smart Grid
Smart grid offers an efficient and intelligent method for managing energy supply and consumption, with the goal of optimizing energy utilization. However, the reliance of smart grid systems on communication networks makes them vulnerable to cyberattacks, posing a significant risk to grid…
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Artikel Jurnal
Optimized Control of Data Center Air Conditioning System Based on Improved EMDQN
Green and low carbon has become the theme of global energy development, in order to reduce the energy consumption of data center air conditioning system, for the highly dynamic change of data center characteristics, this paper proposes a data center air conditioning system optimization and control…
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Application of BiGRU-Attention to Fault Prediction of Highway Electromechanical Equipment
Aiming at the challenges of data comprehension and feature extraction caused by the short length of fault text data and the presence of specialized terms in fault level prediction for highway electromechanical equipment, this paper proposed a fault prediction model based on BiGRU-Attention. First…
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Road Object Detection Algorithm Based on YOLOv5
To address the issue of missed and false detections of small road targets in existing target detection algorithms for autonomous driving, this paper proposes an improved target detection algorithm based on YOLOv5s, named SCE-YOLOv5. First, inspired by the SPPCSPC structure, the SPPF layer in the…
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Artikel Jurnal
Research on Dense Vehicle Detection Based on Imporved YOLOv8 Algorithm
In an attempt to resolve the problem of low accuracy and imprecise detection of dense vehicles in the traditional network model, we propose an enhanced dense vehicle detection algorithm grounded on YOLOv8. Primarily, the CoTA attention mechanism has been integrated into the Neck component, thus…
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Artikel Jurnal
Multi-scale Segment-level Refinement Framework for Action Segmentation Integrating Attention Mechanism
Action segmentation is an important task in computer vision, aiming to predict the labels and temporal boundaries of action segments in untrimmed videos. To address the limitations of existing “predict-then-refine” strategies, where the high-level video representations generated by the backbone…
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Artikel Jurnal
Bi-Stretched Exponential Model and Parameters Estimation Based on Dual Minimization Deep Neural Network
Intravoxel incoherent motion ( IVIM) is the only medical imaging technique that does not require contrast agent. However, existing bi-exponential model cannot reflect the non-Gaussian features of diffusion and perfusion motions, and the fitting method of IVIM parameters is easily disturbed by noise…
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Artikel Jurnal
Electrostrictive Material Coupling DFB-FL Fiber Optic Current Transformer
To address the critical issues of traditional electromagnetic current transformers, such as low detection sensitivity, short transmission distance, and inadequate intelligent interconnection capabilities, a fiber-optic current transformer is proposed, which couples stack-type lead zirconate…
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