Kinematics Analysis of Spatial 8R Hip Joint Rehabilitation Parallel Mechanism by Zengyu Jia, Ruiqin Li, Xiang Li

“…The correctness of the kinematics equation of the spatial 8R parallel mechanism is verified by Adams software and theoretical calculation， and the variation law of the angular displacement of the mechanism in one period under different motions is obtained. …”
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Selection Analysis of Drive Chain Drive System of Diesel Engine Matching Valve Mechanism based on FEV Software by Shukun Wang, Yefeng Xu, Debing Yin, Xudong Zhao

“…The maximum working tension of a diesel engine chain is calculated theoretically on the basis of giving the relevant parameters of a diesel engine, and the primary selection of the chain is completed. …”
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Efficient DDoS attack detection and prevention scheme based on SDN in cloud environment by Heng HE, Yan HU, Lianghan ZHENG, Zhengyuan XUE

“…For addressing the problem of two typical types of distributed denial of service (DDoS) attacks in cloud environment,a DDoS attack detection and prevention scheme called SDCC based on software defined network (SDN) architecture was proposed.SDCC used a combination of bandwidth detection and data flow detection,utilized confidence-based filtering (CBF) method to calculate the CBF score of packets,judged the packet of CBF score below the threshold as an attacking packet,added its attribute information to the attack flow feature library,and sent the flow table to intercept it through SDN controller.Simulation results show that SDCC can detect and prevent different types of DDoS attacks effectively,and it has high detection efficiency,reduces the controller’s computation overhead,and achieves a low false positive rate.…”
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Fine Distributed Moderating Material with Improved Thermal Stability Applied to Enhance the Feedback Effects in SFR Cores by Bruno Merk

“…The similarity in the effects reached by ZrH and YH is demonstrated by comparison calculations. The topic is closed by an overview on material properties, manufacturing issues, experience in fast reactors, and a comparison of raw material costs.…”
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Numerical Study of Hall Thruster Plume and Sputtering Erosion by Li Yan, Ping-Yang Wang, Yang-Hua Ou, Xiao-Lu Kang

“…Potential sputtering erosion caused by the interactions between spacecraft and plasma plume of Hall thrusters is a concern for electric propulsion. In this study, calculation model of Hall thruster’s plume and sputtering erosion is presented. …”
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Contact Simulation and Structure Design of 2K-V Type Involute Planetary Transmission by Zhou Hongjun, Zhou Guangwu, Wang Jiaxu, Wei Bo, Wu Huichao

“…Then,the meshing tooth pairs and the load distribution are obtained and compared with the results of theoretical calculation. A further comparing of contact load and the elastic meshing effect coefficient under different torque is conducted. …”
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Explicit Solutions to Single Scattering of SH Waves with a Radially Gradient Interphase Layer by Jiading Bao, Jun Zhang, Longhai Zeng

“…As an example, we solve the single scattering of SH waves by a SiC fiber with the two interphase layers in an aluminum matrix. The calculated scattering cross sections are compared to values obtained by an approximate method (dividing the continuous varying layer into multiple homogeneous sublayers). …”
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Tramway obstacles detection based on information fusion of MMV radar and machine vision by Guang-yao ZHAI, Rong CHEN, Jian-feng ZHANG, Ji-guang ZHANG, Cheng WU, Yi-ming WANG

“…A method of obstacle detection based on information fusion of millimeter wave radar and machine vision sensor was proposed.Firstly,the millimeter wave radar and camera calibration,image and radar realize spatiotemporal data synchronization,the target position was accurate projection detected by radar images,and then a method of generating radar target region of interest,and the image information using the frame difference method,image detection of moving objects,detection area was put forward.Finally,the radar detection area was compared with the machine vision detection area.The coincidence degree was calculated,and the target was divided into pedestrian or vehicle according to coincidence degree.The experimental results show that the method can detect the obstacle of millimeter wave radar and machine vision well,and make up for the shortage of single sensor in obstacle detection.…”
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Monitoring a Railway Bridge with Distributed Fiber Optic Sensing Using Specially Installed Fibers by Kinzo Kishida, Thein Lin Aung, Ruiyuan Lin

“…The field test utilized multiple strain-sensing fibers attached to a 1 km span of a bullet train railway bridge, which were combined to calculate the 3-dimensional bridge deformation. The installed sensing system and continuous measurements enabled quick safety confirmation after earthquakes of Richter scale 6.4 and 6.8 magnitudes occurred. …”
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Mathematical Analysis of a Cholera Model with Vaccination by Jing'an Cui, Zhanmin Wu, Xueyong Zhou

“…By analyzing the corresponding characteristic equations, the local stability of a disease-free equilibrium and an endemic equilibrium is established. We calculate the certain threshold known as the control reproduction number ℛv. …”
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Measuring the Pollutants in a System of Three Interconnecting Lakes by the Semianalytical Method by Indranil Ghosh, M. S. H. Chowdhury, Suazlan Mt Aznam, M. M. Rashid

“…The main feature of the NIM is that the procedure is very simple, and it does not need to calculate any special type of polynomial or multipliers such as Adomian polynomials and Lagrange’s multipliers. …”
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Geometrical statistical channel model with an Inverted-Parabolic spatial distribution by Jie ZHOU, Dong-dong XU, Kikuchi HISAKAZU

“…Due to the complexity of calculation for the parameters of angle of arrival(AOA),time of arrival(TOA) and Dopplerspectra(DS),etc.…”
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Characterization of the stress-strain state in a gas turbine engine compressor disc taking into account damage accumulation by Natalia Boychenko, Ivan Ishtyryakov

“…The distributions of elastic, plastic and creep stress intensity factors were determined by numerical calculation. Results for several crack front positions, temperature values and disc rotation angular velocity were obtained. …”
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Study on a New Type of Lelord Triangle Pump by Chen Wenjie, Zou Min, Zhu Hailin, Wang Zhiyang

“…The analysis of the motion position of the lelord rotor is carried out,and the displacement and instantaneous flow rate of the internal cavity of the three rotors are calculated. It laid a foundation for the research and experiment of this pump in the later stage and a new way of thinking for pump oil in a linear way is provided.…”
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ROTOR FAULT FEATURE EXTRACTION METHOD USING MVMD AND IEDPE (MT) by WU YaoChun, GUO XiaoBo, DU ShaoHua, JU Hai, ZHAO Yan, WU Jie, JIA XiaoFeng

“…Then, the acquired vibration signals are input into the MVMD for decomposition and the instantaneous energy distribution of each mode component is calculated. Finally, the IEDPE of each mode component is extracted as the fault quantization feature. …”
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On causality and its violation in f(R,Lm,T) gravity by J.S. Gonçalves, A.F. Santos

“…For the non-causal solution, a critical radius is calculated, beyond which causality is violated. Taking different matter contents, an infinite critical radius emerges that leads to a causal solution. …”
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Initial Moving Mechanism of Densely-Packed Particles Driven by a Planar Shock Wave by Hua Lv, Zhongqi Wang, Yunming Zhang, Jianping Li

“…The initial moving mechanism of densely packed particles driven by shock waves is unclear but vital for the next accurate calculation of the problem. Here, the initial motion details are investigated experimentally and numerically. …”
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Development of an insurance industry image assessment index by O. I. Larina, N. V. Moryzhenkova

“…using the author’s index, and provides an example of its calculation based on the Russian insurance market. The developed indicator will allows to objectively assess the dynamics of consumer attitudes to insurance, and to conduct a cross-country comparison of the indicator.…”
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High cycle fatigue assessment of steel load-carrying cruciform welded joints: an overview of recent results by song wei, Xuesong Liu

“…Different analytical solutions are proposed and applied to illustrate the effects of LCWJ geometry under cycle tension and bending according to Finite Element (FE) calculation. The Notch Stress Intensity Factors (NSIF) according to the proposed analytical solutions are validated by comparing finite element data from several simulations in terms of LCWJ models, resulting in a good agreement. …”
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RESEARCH ON LOAD DISTRIBUTION AND FATIGUE LIFE OF FLEXIBLE BEARINGS IN HARMONIC DRIVE AFTER ASSEMBLY DEFORMATION by PAN XueJiao, DONG ShaoJiang, MU ShuFeng, ZHAO XingXin

“…Furthermore,the fatigue life was calculated. Deformation characteristics of the flexible bearing after assembly were analyzed by finite element method（ FEM）. …”
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