To realize the self-power of vehicle micro-sensors, a piezo-electromagnetic hybrid vehicle-mounted energy harvester is proposed to recover wind and vibration generated during driving. This includes flutter piezoelectric harvesting structure (FPEH) an electromagnetic (EVEH). The combination two structures can improve effect reduce cut-in speed. coupled mathematical model established predict output performance effect. effects different distances between magnets on are discussed. And...

To meet the needs of low-power microelectronic devices for on-site self-supply energy, a galloping piezoelectric–electromagnetic energy harvester (GPEEH) is proposed. It consists piezoelectric (GPEH) and an electromagnetic (EEH), which installed inside bluff body GPEH. The vibration at end GPEH cantilever drives magnet to vibrate, so that can be captured by cutting off induced magnetic field lines. coupling structure two-degree-of-freedom motion, improves output power harvester. Based on...

Aiming at the missed detection problem in Single Shot MultiBox Detector (SSD), this paper proposes Contour feature fusion SSD algorithm (C-SSD). The performs operation on features layer to complement object contour, improve expression ability of information. This can enhance capability and reduce rate. simulation shows our C-SSD has a better performance detecting road participants such as vehicles, bicycles pedestrians compared with SSD. mAP ours is increased by 0.78 points test result...

Alloy solidification is an important process to control the mechanical properties of engineering products. During solidification, dendrite fragmentation occurs commonly as a key phenomenon determine microstructure and obtain fine grain size. Recently, in situ synchrotron X-radiography technique was developed applied observe thermodynamic behaviors such growth during solidification. External forces electromagnetic stirring, thermal shock were added into investigate their effects on behavior....

This study investigated the effects of anchor burnout on consumer consumption psychology and behavior. Through questionnaire survey, we found that had a significant impact consumers’ purchase intention, amount, satisfaction loyalty. The experimental results show more serious mood, lower intention quantity consumers These findings contribute to understanding emotions behavior provide useful reference for relevant businesses researchers. this have certain guiding significance influence...

Schultz \cite{S98} proved dispersive estimates for the wave equation on lattice graphs $\mathbb{Z}^d$ $d=2,3,$ which was extended to $d=4$ in \cite{BCH23}. By Newton polyhedra and algorithm introduced by Karpushkin \cite{K83}, we further extend result $d=5:$ sharp decay rate of fundamental solution $\mathbb{Z}^5$ is $|t|^{-\frac{11}{6}}.$ Moreover, prove Strichartz give applications nonlinear equations.

Abstract With the increasing demand for electricity and wide use of renewable energy, power system is facing higher complexity challenges. In order to meet these challenges, cloud-side collaborative architecture has become an innovative solution with great potential. Firstly, this paper discusses basic concept architecture, which integrates cloud computing, edge computing terminal devices achieve more efficient data processing analysis. This provides real-time collection monitoring...

The Convolutional Neural Networks (CNNs) are able to learn basic and high level features hierarchically with the highlight that it implements an end-to-end learning method. However, lacking in ability utilize prior information domain knowledge has led neural networks hard train. In this paper, a method using is proposed, which by appending feature-maps through bypass input structure. As implementation, we evaluate convolutional network integrating Self-Quotient Image (SQI) algorithm. Through...

Normally we use a laser radar to measure the area which robot can move, while there is relatively fixed semantic information in outdoor environments, especially roads. With deep learning wide range of applications image segmentation, believe that panoramic video stream enabling navigate rely on cameras most scenes. Our proposed system be performed for segmenting each camera, combined with stitching, reduce cost hardware navigation.

In this paper, we establish sharp dispersive estimates for the linear wave equation on lattice $\mathbb{Z}^d$ with dimension $d=4$. Combining singularity theory results in uniform of oscillatory integrals, prove that optimal time decay rate fundamental solution is order $|t|^{-\frac{3}{2}}\log |t|$, which first extension P. Schultz's \cite{S98} $d=2,3$ to higher dimension. Moreover, notice Newton polyhedron can be used not only interpret rates $d=2,3,4$, but also study most degenerate case...

Carbon peaking and carbon neutrality has risen to national strategy. The new generation of information technology represented by 5G is becoming the base Digital transformation economic society, promoting vigorous development digital economy. At same time, environmental issues such as energy security greenhouse effect are increasingly hidden dangers that hinder sustainable human low-carbon urgent. deep integration will become an important engine for achieving "dual carbon" goal. This article...