Space-time dynamics in hazard exposure analysis: smartphone locations show pedestrian routes are inflexible to extreme heat events by Sahar Derakhshan, John Dialesandro, V. Kelly Turner, Travis Longcore

“…Shade from trees and buildings calculated from LiDAR were paired with smartphone locations filtered to include outdoor pedestrians on an hourly basis for control and extreme heat days to study behavioral patterns for neighborhood residents, non-residents, and the unhoused population. …”
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Scattering Analysis and Detection of Layered Plate Debonding Using Guided SH Waves with Boundary Element Method by Supawat Wongthongsiri, Sohichi Hirose

“…The partial wave technique is established to form the displacement and stress of guided wave functions, and the boundary element method (BEM) is utilized to handle the numerical calculation with elastodynamic fundamental solutions in the frequency domain. …”
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TOPOLOGY OPTIMIZATION DESIGN METHOD FOR HINGE-FREE MULTI-INPUT MULTI-OUTPUT COMPLIANT MECHANISMS UNDER BUCKLING CONSTRAINTS (MT) by GAN Wei, RONG JianHua, ZHAO Lei, HE YiFan, LI ZhengWei, ZHOU Quan

“…Firstly, in order to solve the problem of pseudo-buckling modes and calculation efficiency caused by low-density elements, smooth penalty functions of the element stiffness matrix and stress matrix are constructed, and comprehensive measures to solve the corresponding problem are proposed. …”
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Simulation on Water Diversion Regulation Effect in the Central Ditch of Hengqin New District,Zhuhai by LONG Xiaofei, WU Yaju, FAN Qunfang, ZHU Song, WANG Hua, ZHU Jinhe

“…The tidal river network area of the Pearl River Delta uses the ebb-and-flow differences between tidal level of the outer river and water level of the inland river to divert clear water for regulation.This is an effective way to improve the water environment of the tidal river network.The central ditch of Hengqin New District is in the tidal river network area of the Pearl River Delta.To improve the water environment of the central ditch in Hengqin New District,this study builds a one-dimensional hydrodynamic mathematical model of water quality and investigates the hydrodynamic regulation scheme for improving the regional water environment.Then,the water exchange effects of the original regulation scheme and the optimized regulation scheme are calculated and analyzed.The simulation results show that the optimized regulation scheme increases the regional flow rate by 0.20 m/s,shortens the half-exchange period by 101.5 h,and increases the water exchange rate by a factor of 1.1,which demonstrates a great improvement effect on the regional water environment.The results can be used as a reference for the implementation of the water diversion regulation scheme in the tidal river network area.…”
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Actual Gear Surface Static Unloaded Transmission Error of Spiral Bevel Gear and Its Effect on Dynamic Characteristic by Zhisheng Chen, Siyu Chen, Jinyuan Tang, Shandong Peng

“…The theoretical tooth surface STE of the model is compared with the theoretical tooth surface STE obtained by the classic TCA, the correctness of the method is verified, and the actual tooth surface STE is calculated. The three-dimensional coupling dynamics model of spiral bevel gear pair is established. …”
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Wireless Sensor System of UAV Infrared Image and Visible Light Image Registration Fusion by Lei Gu, Juan Meng

“…The algorithm combines the fusion optimization algorithm proposed in this paper greatly reduces the calculation speed and improves the performance of the optimization algorithm and success rate.…”
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Development and Testing of a Weakly Rigid Gear Transmission Test Platform by Liang Jie, Sun Guangyao

“…Based on the low critical speed of the weakly rigid gear drive, a modal analysis of the rotor consisting of gears and shaft is carried out to obtain the inherent frequency of the rotor and calculate the motor speed at which the rotor resonance may be triggered. …”
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Analysis of Resonance Characteristics of the Marine Six Branch Coaxial Herringbone Gear Transmission System by Wang Chunling, Liu Linlin, Wang Sanmin, Zhao Yongjin, Wang Ji, Wang Yongfan

“…The first 20 orders of natural frequencies and vibrations of the transmission system are calculated. Based on the Campbell diagram, the resonance characteristics of the system are analyzed for cruise speed. …”
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The influence of price on purchase decision with quality of service as intervening variable by Eka Mayastika Sinaga

“…The indirect effect through the Z variable is 0.2114. Based on the calculation results, the direct effect on Y is greater than the indirect effect through Z.…”
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Privacy protection scheme for internet of vehicles based on homomorphic encryption and block chain technology by Ruijin WANG, Yucheng TANG, Weiqi ZHANG, Fengli ZHANG

“…In order to solve the problem that the security of traditional internet of vehicles devices is relatively low,which may threaten the privacy of users,a privacy protection scheme based on homomorphic encryption and block chain technology was proposed.This scheme added the authentication service composed of two level nodes to the proposed model to realize the permission control of roles in the model.In order to record the information of the internet of vehicles devices,a new block data structure based on homomorphic encryption (HEBDS) was proposed,which enabled the privacy data to be written into the block after being processed by the Paillier encryption algorithm,and then written into the blockchain network by the gateway node obtaining the accounting right.This scheme realized the data processing in ciphertext state,and made up for the shortage of all data disclosure in blockchain network.Through the analysis of the security of the scheme,it is proved that the scheme has the characteristics of unforgeability and privacy data security.Through homomorphic encryption of privacy data and upload to blockchain network,the scheme can distribute,share and calculate privacy data in ciphertext state,which can protect customer privacy more effectively than traditional internet of vehicles model.…”
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Effect of Geometric Transmission Error on Load and Vibration Characteristic of Spiral Bevel Gear by Bohui Yang, Xuemei Cao, Dingjun She, Haoyang Tian

“…The tooth surface grid node coordinates are accurately calculated by the tooth surface equation. According to the density requirements of the grid nodes， the grid nodes are evenly divided， the tooth root transition curve mesh is encrypted， and the finite element software is directly imported to generate an accurate finite element model of the spiral bevel gear meshing transmission. …”
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Study on crack propagation behaviors of aircraft internal pressure panels with longitudinal cracks by QIN JianBo, WANG Feng, LÜ Pin, HOU Cheng, FAN XueLing

“…And the analysis results of the equivalent stress intensity factor and crack growth of different crack lengths were calculated based on the fracture mechanics theory. The comparison between the crack growth results and the test results validates the feasibility of the analysis method. …”
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Âge à la ménopause naturelle à Marrakech (Maroc) et prévalence des symptômes du climatère by Mohamed Loukid, Mohamed Kamal Hilali, Cristina Bernis

“…The median age of menopause observed by status quo method in 2001 and calculated by mean of probit analysis was 50.25 ± 6.5 years. …”
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Determination of physical activity levels of men and women in the 20-30 age range: The case of Batman Province by Hilal Kılınç Boz, Akan Bayrakdar, Kenan Demir

“…SPSS package program is used in the calculation of the obtained filtering. In the 1524 computers for the study, 732 of them are between the ages of 20-25 and 792 of them are between 26-30 years of age. …”
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Digital Building Permit As a Complex Permitting Document by V. A. Mayboroda

“…The totality of each of the load values in the further development of the considered regulation, combined into a single data set (big date), will make it possible to resolve the issue of the load of the entire settlement as a whole with all possible certainty, without using calculation methods, whose estimates are of a probabilistic nature.…”
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Chinese medical named entity recognition model based on local enhancement by CHEN Jing, XING Kexuan, MENG Weilun, GUO Jingfeng, FENG Jianzhou

“…Secondly, relative position encoding was combined to perform local attention calculations on sequence segments divided by sliding windows, and local information was fused with global information obtained from BiLSTM through nonlinear computation. …”
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Analysis of the Dynamics Characteristic of Single Section Train with Considering the Torsional Vibration of Transmission System by Chen Zheming, Wang Lizhang, Yu Yang

“…In order to analyze the influence of vibration of transmission system on vehicle dynamics performance,the train drive system is simplified as a series system containing shaft segments and equivalent disc,a whole multi- body dynamics model of a high speed train and a torsional vibration model of transmission system are established,and the calculation and analysis of additional moment produced by torsional vibration is carried out. …”
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Apparent Molecular Weight Distributions for Investigating Aging in Polymer-Modified Bitumen by Miriam Cappello, Sara Filippi, Yvong Hung, Massimo Losa, Giovanni Polacco

“…The master curves were then used to calculate relaxation spectra and apparent molecular weight distributions of the binders, as well as simulated temperature sweep tests. …”
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Damage Detection of a Continuous Bridge from Response of a Moving Vehicle by Z. H. Li, F. T. K. Au

“…The modal strain energy based method estimates the damage location by calculating a damage indicator from the frequencies extracted from the vehicle responses of both the intact and damaged states of the bridge. …”
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Vulnerability assessment and zoning of developed and susceptible contaminated karstic (Case study: Ravenscar watershed) by asadolah hejazi, zahra heidari

“…The method of work is that after the necessary processing, using the OWA method and applying weights obtained through the ANP model, the zoning is done After designing the zoning map, using the satellite imagery of 2007 and2015, the development of human development areas in the developed karstic areas has been evaluated The results of this study indicate that most of the studied basin, especially in northern and western areas of the basin, are highly and relatively developed in the class, The calculation of the area of man-made areas suggests that in2007, about 2.6 km of occupied areas of man-made industrial zones have been occupied which, according to the growing population, increased to 3.8 km in2015, human-made areas have been extracted in developed artisanal areas…”
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