Gearbox Fault Diagnosis Based on ALIF-PE-GOLSSVM by Huang Ying, Li Ximei, Ye Renhu, Wang Rui

“…Then the PE value with component (C-PE value) is calculated to obtain the multi-scale characteristics of vibration signals. …”
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RELIABILITY PREDICTION METHOD BASED ON THE 3CAW DISTRIBUTION (MT) by FAN LiTian, QI HongLiang, CHEN HongWen

“…This article discusses the use of maximum likelihood estimation to estimate the unknown parameters of the 3CAW distribution, and calculate reliability and failure rate as reliability indicators. …”
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Balance Function in High-Energy Collisions by A. Tawfik, Asmaa G. Shalaby

“…Aspects and implications of the balance functions (BF) in high-energy physics are reviewed. The various calculations and measurements depending on different quantities, for example, system size, collisions centrality, and beam energy, are discussed. …”
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CRACK FAULT DIAGNOSIS OF ROTOR BASED ON VMD AND AR MODEL by ZHONG ZhiXian, JIAO BoLong, WANG JiaYuan, LIU YiXin, ZHU ChangSheng

“…The variance of the model parameters and residuals is calculated by the least square method. The model parameters and the variance of the residual are used as the characteristic vector of the system state. …”
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Analysis of Planetary Mechanism Flow-solid Coupling of the Cutting Department of the Shearer based on SPH Method by Lijuan Zhao, Wen Zhang, Bo Zhang

“…The planetary mechanism of shearer cutting department operates in harsh environment， suffers heavy impact load and complicated internal lubrication. In order to calculate the dynamic characteristics of planetary mechanism more accurately， a Smoothed Particle Hydrodynamics （SPH） method based on Abaqus is put forward. …”
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Samouel Beji, Le développement financier pour les pays du sud de la Méditerranée à l’épreuve de la mondialisation financière by Samouel Beji

“…The model used links financial development indicators to institutional and legal indicators, in order to calculate institutional thresholds. Further, on the one hand, we check the nature of the relationship existing between institutional development, banking regulation and banking development. …”
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Financial management of an environmental enterprise by E. A. Kirova, A. A. Kurchenko

“…The authors propose a methodology for financial analysis of industrial and environmental activities of an enterprise based on the calculation of key financial and private environmental indicators of environmental enterprises. …”
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Survey of FPGA based recurrent neural network accelerator by Chen GAO, Fan ZHANG

“…Recurrent neural network(RNN) has been used wildly used in machine learning field in recent years,especially in dealing with sequential learning tasks compared with other neural network like CNN.However,RNN and its variants,such as LSTM,GRU and other fully connected networks,have high computational and storage complexity,which makes its inference calculation slow and difficult to be applied in products.On the one hand,traditional computing platforms such as CPU are not suitable for large-scale matrix operation of RNN.On the other hand,the shared memory and global memory of hardware acceleration platform GPU make the power consumption of GPU-based RNN accelerator higher.More and more research has been done on the RNN accelerator of the FPGA in recent years because of its parallel computing and low power consumption performance.An overview of the researches on RNN accelerator based on FPGA in recent years is given.The optimization algorithm of software level and the architecture design of hardware level used in these accelerator are summarized and some future research directions are proposed.…”
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Study on Structure Characteristic and Operating Parameter Interval of High-speed Multi-feature Gear Shaft by Zhang Kun Xu Wenbo Mao Jizhe Wang Xiaopeng

“…The safety factor of dangerous interface is used to check the strength of shaft, and the ratio of three safety factor, i.e. contact strength of tooth surface, bending strength of tooth root and dangerous interface, is weighed to calculate the operating parameter interval under static condition. …”
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OPTIMIZATION OF DOOR SYSTEM PARAMETERS BASED ON ORTHOGONAL DESIGN by WANG ZhenJiang, HE Zao, SUN Run

“…Sensitivity analysis was conducted on each performance of the car door system with car door plate’s thickness being the variable; a car door plate thickness with comparative large influence on car door performance was selected as the controlling factor; a comprehensive performance evaluation function for car door system was constructed with the adoption of weighted sub-goals multiplying and dividing calculations; the orthogonal experimental design was applied to the parametric optimization design on car door system’s comprehensive performance. …”
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Comparison of Tooth Root Bending Fatigue Life Between 18CrNiMo7-6 and 20CrMnTi Materials by Daojun Li, Qingbo Lu, Deping Liu

“…Through the finite element analysis software Workbench， the statics analysis of the single tooth of the gear is performed，and then the static analysis result is introduced into the fatigue analysis software FE-SAFE，in combination with the load spectrum information， the fatigue life of the two gears are calculated，and the obtaining life cloud maps are analyzed and compared. …”
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Criteria for the efficiency of enterprise management in the framework of digital transformation by S. K. Kochina, E. D. Schetinina

“…As a result of the study, it was concluded that it is expedient to apply the proposed methodological approach to the analysis of enterprise management by taking into account and evaluating the criteria for management effectiveness in the context of digital transformation, as well as calculating the integral index.…”
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On Semianalytical Study of Fractional-Order Kawahara Partial Differential Equation with the Homotopy Perturbation Method by Muhammad Sinan, Kamal Shah, Zareen A. Khan, Qasem Al-Mdallal, Fathalla Rihan

“…We have demonstrated that He’s approach is highly effective and powerful for the solution of such a higher-order nonlinear partial differential equation through our calculations and simulations. We may apply our method to an additional complicated problem, particularly on the applied side, such as astrophysics, plasma physics, and quantum mechanics, to perform complex theoretical computation. …”
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Forecast-based resource reconfiguration algorithm for network virtualization by ZHANG Shun-li, QIU Xue-song, PAN Ya-lian, MENG Luo-ming

“…In order to solve imbalance issues of used resources of substrate network,which are brought by virtual net-work joining and leaving dynamically,forecast-based resource reconfiguration algorithm（FRRA） for network virtualiza-tion environment was proposed.Algorithm FRRA took full advantage of known information to calculate interval of re-configuration and used this interval to replace the periodic time span in previous algorithms.In order to make reconfigu-ration time global optimal,it took two measures:resources were divided into critcal resources and general resources,and different algorithms were used to key resources and common resources respectively;according to the probability that re-source migration was failure,the limit number of reconfiguration requests was deduced.FRRA algorithm with VNA-II algorithm and PMPA algorithm in the experiments was compared.The results show that algorithm FRRA reduces recon-figuration cost 69% than that of VNA-II and 42% than that of PMPA.Algorithm FRRA improves VN request reception rate 29% than that of VNA-II and 52% than that of PMPA.…”
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FINITE ELEMENT MODELING AND VIBRATION-DAMPING CHARACTERISTICS OF A CONSTRAINED DAMPING BEAM WITH TRANSITION LAYER by LANG BaoXiang, YAN BiJuan, ZHAO ZhangDa, XU Peng

“…Taking the cantilever damping beam as an example, compared with the traditional constrained damping beam, the calculation results show that adding the "transition layer" can improve the loss factor of the structure and energy consumption. …”
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Improved integral attack——random linear distinguish and key recovery attack by Shaoyu DU

“…Based on the integral attack and collision attack of four rounds of AES, a random linear distinguish attack against four rounds of SP block ciphers was proposed, which took advantage of the non-uniformity of linear biases’ distribution between some blocks of plaintext and inner state.Combined with precomputation, a key recovery attack against four rounds of AES-like block ciphers was proposed.For LED-64, the results of distinguish attack and key recovery attack were given.Therein for LED-64 of 1-Step, the probability of successful distinguish attack is 85% under the condition that the data complexity is 2⁸ and the computational complexity is 2¹⁶ basic operation.For LED-64 of 2-Step, the calculation complexity of the key recovery attack under the condition of related key is 2¹⁴ basic operation, the data complexity is 2⁸, and the precomputation storage complexity is 2³⁸ half bytes.…”
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An adjustment method for electricity sales forecasting result considering the effects of spring festival by Jian LIU, Jiakui ZHAO, Yuze CHEN, Xuemin FANG, Yuxi LIU, Shulong WANG, Yan CHEN, Hong OUYANG

“…The effects of Spring Festival on electricity sales of different trades were considered and an adjustment method for electricity sales forecasting result was proposed.Firstly,the month-quarter ratio of historical electricity sales in each trade of every month in the first quarter and the distance between Spring Festival and the first day of every month in the first quarter was used to create a functional relationship.Then,the distance between Spring Festival and the first day of every month in the first quarter of the target year was used as input and the predicted month-quarter ratio of electricity sales of each trade of every month in the first quarter of the target year was calculated according to the functional relationship.The adjusted electricity sales forecasting result can then be computed by using the predicted month-quarter ratio and the electricity sales forecasting of each trade of every month in the first quarter of the target year before adjustment.The adjustment result shows that the proposed method can effectively lower the error of electricity sales forecasting in the first quarter.…”
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Cutting Processing and Experimental Verification of Epicycloid Bevel Gear based on Four-axis Linkage by Han Zhengyang, Deng Xiaozhong, Deng Jing, Zhang Mingzhu, Geng Longlong

“…The relations among motion axes real-time motion coordinates are analyzed,and real-time coordinates of each motion axis of CNC machine are calculated. The ideal contact region is obtained by the gear cutting processing and rolling-inspection test. …”
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Surface Error Evaluation of Non-circular Bevel Gear of Variable Ratio Differential by Xie Xia, Zhang Xiaobao, Jia Jumin

“…Finally,the obtained error is 0. 053 22 mm,which meets the requirements of gear design. The calculating results show that this method has high accuracy and speed to reconstruct the surface and can solve the error evaluation problem for the complicated surface.…”
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An Expert Diagnosis System for Parkinson Disease Based on Genetic Algorithm-Wavelet Kernel-Extreme Learning Machine by Derya Avci, Akif Dogantekin

“…The performance of the proposed GA-WK-ELM method is evaluated using statical methods such as classification accuracy, sensitivity and specificity analysis, and ROC curves. The calculated highest classification accuracy of the proposed GA-WK-ELM method is found as 96.81%.…”
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