Dear Editor,The health management of battery supply chain(SC)is vital to battery-related *** letter focuses on the study of health management of battery SC under ***,a discrete-time model of battery SC is developed ba...
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Dear Editor,The health management of battery supply chain(SC)is vital to battery-related *** letter focuses on the study of health management of battery SC under ***,a discrete-time model of battery SC is developed based on the actual industrial ***,a model predictive control-based change management(MPCCM)strategy is proposed to ensure stable manufacturing of ***,the effects of disruption are also considered in terms of the actual ***,the validity of the proposed strategy is verified by a case study in Dongsheng Electronics Co.,Ltd.
van der Waals heterostructures stacked by transition metal dichalcogenides and graphene provide a new opportunity for exploring ***,the further reduction of friction is limited by the unavoidable charge transfer in th...
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van der Waals heterostructures stacked by transition metal dichalcogenides and graphene provide a new opportunity for exploring ***,the further reduction of friction is limited by the unavoidable charge transfer in the *** dynamics of charge transfer occur at picosecond time scale,which cannot be detected by traditional friction instruments,making the friction mechanism of charge transfer ***,we investigate friction-induced charge transfer in WS_(2)/graphene heterostructures with ultrafast friction energy dissipation detecting *** observed friction exhibits a strong linear relationship with the dissipation rate of interlayer charge *** modulating the band structure of heterostructures,the dissipation rate of interlayer charge transfer can be efficiently tuned from 0.72 to 0.17 ps^(−1),resulting in a~35%reduction in *** work gives the direct explanation of friction-induced charge transfer,which enables the high-performance micro-electro-mechanical systems and new insight into the origin of friction from the perspective of ultrafast electron dynamics.
In order to improve the efficiency of high-speed train aerodynamic noise analysis and provide a feasible method for aerodynamic noise prediction, the aerodynamic noise and its influencing factors are analyzed from the...
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In scenarios such as vehicle radiation monitoring and unmanned aerial vehicle radiation detection,rapid measurements using a NaI(Tl)detector often result in low photon counts,weak characteristic peaks,and significant ...
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In scenarios such as vehicle radiation monitoring and unmanned aerial vehicle radiation detection,rapid measurements using a NaI(Tl)detector often result in low photon counts,weak characteristic peaks,and significant statistical *** issues can lead to potential failures in peak-searching-based identification *** address the low precision associated with short-duration measurements of radionuclides,this paper proposes an identification algorithm that leverages heterogeneous spectral transfer to develop a low-count energy spectral identification *** experiments demonstrated that transferring samples from 26 classes of simulated heterogeneous gamma spectra aids in creating a reliable model for measured gamma *** only 10%of target domain samples used for training,the accuracy on real low-count spectral samples was 95.56%.This performance shows a significant improvement over widely employed full-spectrum analysis methods trained on target domain *** proposed method also exhibits strong generalization capabilities,effectively mitigating overfitting issues in low-count energy spectral classification under short-duration measurements.
Composited cable terminals are critical for reliable power delivery of traditional and traction power supply *** its operation,the cable terminal continually undergoes complex circumstances where humidity,temperature,...
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Composited cable terminals are critical for reliable power delivery of traditional and traction power supply *** its operation,the cable terminal continually undergoes complex circumstances where humidity,temperature,field strength,mechanical stress and other factors continuously change at different *** extreme cases,defects or even failures may occur in the cable terminals,leading to catastrophic *** makes the condition monitoring and defect detection of composited cable terminals become an imperative need for the power ***“state-of-the-art”technology of cable terminal condition assessment is focussed and a systematic review of the current research progress of cable terminal condition assessment from the operation circumstances to failure mechanisms is *** covers both online/offline condition monitoring methods and defects detection *** addition,challenges and future research directions for cable terminal condition assessment are also *** is concluded that the non-destructive and non-intrusive methods like terahertz imaging and ultrasonic testing,and multi-source information fusion methods as well as the digital twin technology have been gaining popularity for cable terminal defect *** is expected the presented work can provide a global field of vision for further advancement of both scholars and industrial engineers in this field.
Accurate estimation of load torque is critical for optimizing the control performance of permanent-magnet synchronous motor (PMSM) drives. This article first establishes a mathematical model of the PMSM using coordina...
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The disturbing force exerted by the magnetic field on the test mass (TM) constitutes a significant source of the acceleration noise in space inertial sensors. The frequency-conversion magnetic acceleration noise (FCMA...
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This paper presents a comprehensive review of the latest advancements in fabric defect detection leveraging machine learning techniques. It introduces the characteristics of textile defects and public datasets, and en...
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This paper investigates the consensus-based formation control problem for multi-agent systems with unknown nonlinear *** achieve the desired formation,we propose two formation controllers to achieve the desired format...
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This paper investigates the consensus-based formation control problem for multi-agent systems with unknown nonlinear *** achieve the desired formation,we propose two formation controllers to achieve the desired formation,one based on system states and the other on system *** proposed controllers utilize adaptive gains to avoid global information and neural networks to estimate and compensate for *** proposed event-triggered schemes avoid continuous communication among agents and exclude the Zeno *** analysis reveals that formation errors are bounded,and numerical simulations are used to validate the effectiveness of the proposed approaches.
To accurately diagnose the aging condition of the vehicle-mounted high-voltage cable terminals under the combined electro-thermal stress,this paper proposes a terahertz frequency spectrum technology-based ***,an elect...
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To accurately diagnose the aging condition of the vehicle-mounted high-voltage cable terminals under the combined electro-thermal stress,this paper proposes a terahertz frequency spectrum technology-based ***,an electro-thermal aging platform is established in the laboratory to obtain the test samples of ethylene-propylene rubber(EPR)cable terminals with different aging ***,the degree of electro-thermal aging is characterized by frequency spectrum,absorption coefficient spectrum,absorption spectrum,refractive index and dielectric constant in the terahertz ***,the micro-morphology and micro-area structure of the test samples under different aging gradients are also observed by scanning electron microscopy,and both the material and chemical properties are *** findings demonstrate that terahertz frequency spectra offer significant benefits in non-destructively detecting and identifying the insulation condition of vehicle cable terminals during electro-thermal *** tests confirm the feasibility of utilizing the terahertz frequency spectrum to assess the insulation aging state of EPR cable terminals,making it potentially applicable for on-site purposes.
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