Periodic orbit in the frame work of restricted three bodies under the asteroids belt effect

Abozaid, Ahmed A.; Selim, H. H.; Gadallah, K. A. K.; Hassan, Ibrahim A.; Abouelmagd, Elbaz I.

doi:10.2478/amns.2020.2.00022

Cited by 39 publications

(14 citation statements)

References 38 publications

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“…erefore, this paper improves the accuracy of rumor discovery on the premise of ensuring the timeliness of rumor discovery. With the development of science and technology, there is an increasing trend about the investigation of the real world problems such as the development of Faults Detection [25], Vortex eory [26], Periodic Orbit [27], Dynamics [28] and other research fields. It is hoped that the model proposed in this paper can be applied to these problems in the near future.…”

Section: Discussionmentioning

confidence: 99%

A New Early Rumor Detection Model Based on BiGRU Neural Network

Chen

Wang

Dong

et al. 2021

Discrete Dynamics in Nature and Society

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With the progress of society and the rapid development of computer technology, rumors arise on social media, which seriously affects the social economy. How to detect rumors accurately and rapidly has become one hot research topic. In this paper, a new early rumor detection model is proposed. The aim of this model is to increase the efficiency and the accuracy of rumor detection simultaneously. Specifically, in this model, the input data is firstly refined through account filtering and data standardization, then the BiGRU is used to consider the context relationship, and a reinforcement learning algorithm is applied to detection. Experimental results show that compared with other early rumor detection models (e.g., checkpoints), the accuracy of the proposed model is improved by 0.5% with the same speed, which testifies the effectiveness of this model.

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Section: Discussionmentioning

confidence: 99%

A New Early Rumor Detection Model Based on BiGRU Neural Network

Chen

Wang

Dong

et al. 2021

Discrete Dynamics in Nature and Society

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“…As can be seen from the simulation results, on the premise that other parameters remain unchanged: (1) With the increase of core spacing, the signal tance between the core and the shaft. And the sensitivity of the foreslope gradually decreases [9,10]. From this analysis, it is concluded that the distance between the fibre core axis of the optical fibre probe should be as small as possible, that is, the sending fibre and the receiving fibre should be closely arranged within the range of conditions.…”

Section: Intensity Modulation Model Of Fibre Bundle Sensormentioning

confidence: 91%

Application of Forced Modulation Function Mathematical Model in the Characteristic Research of Reflective Intensity Fibre Sensors

Dai

Wang²,

Cheng

et al. 2021

Applied Mathematics and Nonlinear Sciences

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In order to discuss the application and mode of the forced modulation function in a sensor, the optical fibre emphasis function was established by referring to the geometric method, the tilt factor and the shape factor of the reflecting surface. These were introduced for the first time, and the corresponding mathematical model was established. The method of numerical simulation is systematically studied and multimode optical fibre parameters (including optical fibre of axial spacing, optical fibre core diameter and numerical aperture) are adopted. The reflective surface inclination and shape factors on the RIM–FOS intensity modulation characteristics are studied according to the obtained light quasi-Gaussian distribution model, establishing a general three-intensity modulation function of fibre optic sensor. The results show that the intensity modulation characteristic of specular reflection is obviously better than that of the diffuse reflection surface, and the peak value of the modulation function is five times that of diffuse reflection. The intensity modulation characteristic decreases with increase in the roughness of the reflection surface. The system can not only complete the RIM–FOS characteristic simulation and characteristic testing functions, but can also start-up the test and not be affected by the ambient light interference and power fluctuation of the light source. The test stability is good with high repeatability.

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“…On the premise of fully considering the geological environment near the tunnel and minimising the so-called 'boundary effect', the distance between the boundary of the calculation model and the centreline of the tunnel is 45 m, and the distance from the bottom boundary to the top of the tunnel is 30 m. Surface. According to the characteristics of the bias tunnel, the upper boundary is the free boundary, the left and right boundaries are horizontal constraints and the upper boundary is the vertical displacement constraint [9,10]. There are 1876 quadrilateral elements and the total number of nodes is 1847.…”

Section: Calculation Modelmentioning

confidence: 99%

Deformation and stress theory of surrounding rock of shallow circular tunnel based on complex variable function method

Guizhen

Zhou

Alotaibi

et al. 2021

Applied Mathematics and Nonlinear Sciences

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After reviewing many literature foundations, the thesis combines the basic methods of elastic mechanics with mathematical knowledge, sets the bipotential stress potential complex function and analyses the relationship between stress component, strain component and stress potential function, and applies the complex variable function. The expression of the relevant stress component is derived, and the displacement boundary conditions of the surrounding rock of shallow circular tunnel are obtained. Furthermore, the paper applies the basic theory of complex variable function to solve the boundary condition complex variable function for common tunnel sections, and obtains the analytical expression of the surrounding rock stress of shallow circular tunnel. The simulation is carried out by finite element method. The establishment of complex variable function has a good application value in solving the stress of surrounding rock of shallow tunnel.

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Periodic orbit in the frame work of restricted three bodies under the asteroids belt effect

Cited by 39 publications

References 38 publications

A New Early Rumor Detection Model Based on BiGRU Neural Network

A New Early Rumor Detection Model Based on BiGRU Neural Network

Application of Forced Modulation Function Mathematical Model in the Characteristic Research of Reflective Intensity Fibre Sensors

Deformation and stress theory of surrounding rock of shallow circular tunnel based on complex variable function method

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