Efficient calculation of self magnetic field, self-force, and self-inductance for electromagnetic coils with rectangular cross-section by Matt Landreman, Siena Hurwitz, Thomas M. Antonsen

“…For these force, inductance, energy, and internal field calculations, the coils cannot be naively approximated as infinitesimally thin filaments due to divergences when the source and evaluation points coincide, so more computationally demanding calculations are usually required, resolving the finite cross-section of the conductors. …”
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Versatile LCL Inverter Model for Controlled Inverter Operation in Transient Grid Calculation Using the Extended Node Method by Daniela Vorwerk, Detlef Schulz

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A Method for Calculating the Area of Zostera marina Leaves from Digital Images with Noise Induced by Humidity Content by Cecilia Leal-Ramirez, Hector Echavarria-Heras

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Retracted: Fabrication of Hollow Needle Tips with Nanoholes by Plasma Maskless Processing and Calculation and Detection of Complex Surface Edges by Advances in Materials Science and Engineering

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Room-Temperature Polyol Synthesis of Ag/SiO2 Nanocomposite as a Catalyst for 4-Nitrophenol Reduction by Canh Minh Thang Nguyen, Vinh Tien Nguyen

“…We prepared silver nanoparticles (AgNP) embedded in SiO2 using a green polyol approach by conducting the synthesis at ambient temperature and pH. …”
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Presenting complex, balanced scorecard model and two-level data envelopment analysis for calculating the performance of social institutions by Mehrdad Navabakhsh, Nasser Shahsavari Pour

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Research and Application of the Formula for Calculating Discharge Coefficient of the Spillway Broad Crest Weir Based on the Binary Nonlinear Fitting by YAN Zhifang, JIA Yunfei, WANG Yu

“…In order to facilitate the use of the discharge coefficient table of broad crest weir in the current design code for Spillway of water conservancy,the discharge coefficient formula of broad crest weir is obtained by fitting the data in the current water conservancy code with bivariate rational function approximation.By Comparing the fitting formula with the current power code formula,the results show that the fitting formula is better than the current power code formula.By comparing the error indexes of fitting formula and power code formula,it is found that the error indexes of fitting formula are in the better range under each value of r/H,while the deviation of each error index of power code from the optimal value is small when r/H≥0.20.The fitting formula is used to calculate a series of discharge coefficients corresponding to water head at different fillet radii of a spillway broad crest weir.Through the analysis of the calculation results,it can be seen that the fitting formula can be used to calculate the discharge coefficient of broad crest weir in engineering design instead of consulting the water conservancy code table.…”
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Adaptive Fuzzy PID Control System for Satellite Earth Station Antenna Group Factor Based on Edge Calculation by Haibin SHAN, Yanjun SHI, Zijing LIU, Yuanhong LI, Wenhua ZHAO, Muquan HE, Chuzhou LI

“…The antenna tracking control system of satellite ground receiving station generally adopts PID control.Due to the infl uence of various uncertain factors, it is diffi cult to obtain the optimal control parameters for this kind of system, resulting in the PID control eff ect is not ideal.An adaptive fuzzy PID antenna tracking control system based on edge computing was designed.The parameters of PID controller were adjusted in time by fuzzy control algorithm, and the optimal calculation of fuzzy control input and output domain was realized in edge computing server.The simulation results showed that the adaptive fuzzy PID antenna tracking control system based on edge calculation could achieve good control eff ect.…”
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Simplified Method for Calculating the Active Earth Pressure on Retaining Walls of Narrow Backfill Width Based on DEM Analysis by Minghui Yang, Bo Deng

“…The point of application of the active earth pressure is also obtained. The calculated values agree well with those from physical tests in the previous literature. …”
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A Fast Numerical Method for the Calculation of the Equilibrium Isotopic Composition of a Transmutation System in an Advanced Fuel Cycle by F. Álvarez-Velarde, E. M. González-Romero

“…A fast numerical method for the calculation in a zero-dimensional approach of the equilibrium isotopic composition of an iteratively used transmutation system in an advanced fuel cycle, based on the Banach fixed point theorem, is described in this paper. …”
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Expression of Concern: A fast and accurate calculation method of line breaking power flow based on taylor expansion by Frontiers Editorial Office

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Comparison of methods for determining the layer of daily precitation for calculation of the maximum expenses of rain floods (on the example of the Kaliningrad region) by V. A. Naumov, N. R. Ahmedova

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Calculation of Tooth Root Bending Fatigue Life with Considering the Influence of Roughness Parameter R_a by He Di, Tang Jinyuan, Li Guowen, Zhou Wei

“…The risk area of tooth root is obtained by finite element analysis.The risk area of the tooth root is measured by the white light interferometer, the statistical distribution parameters and the exponential autocorrelation function is obtained according to the surface topography,and using them to reconstruct the surface topography needed for the finite element calculation. Based on the finite element method,the stress concentration effect of tooth root surface topography is analyzed,and the fatigue life of tooth root is estimated based on the S-N curve of materials,and the quantitative relationship between the roughness R_a and the bending fatigue life of the tooth root is given.…”
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Modeling and Dynamic Analysis of Spherical Roller Bearing with Localized Defects: Analytical Formulation to Calculate Defect Depth and Stiffness by Behnam Ghalamchi, Jussi Sopanen, Aki Mikkola

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The Costs of Hurricane Emergency Management Services: A Risk-Based Method for Calculating Property Owners' Fair Share by Sea Grant

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Carbon Doping in Small Lithium Clusters: Structural, Energetic, and Electronic Properties from Quantum Monte Carlo Calculations by Bráulio G. A. Brito, Guo-Qiang Hai, Ladir Cândido

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Calculation of Heat of Adsorption of Gases and Refrigerants on Activated Carbons from Direct Measurements Fitted to the Dubinin–Astakhov Equation by Kandadai Srinivasan, Pradip Dutta, Kim Choon Ng, Bidyut Baran Saha

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Explicit Form of Exact Analytical Solution for Calculating Ground Displacement and Stress Induced by Shallow Tunneling and Its Application by Caixia Guo, Kaihang Han, Heng Kong, Leilei Shi

“…Comparison with implicit form of exact analytical solutions shows that the explicit form of exact analytical solutions is intuitional and easily used by engineers, and moreover, the calculation amount is much smaller than that for the implicit form of exact analytical solutions. …”
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Effects of Smoke-Dust and CO on Controllable Circulatory Ventilation of an Extra-Long Highway Tunnel: Theoretical Model and Calculations by Feng Tian, Hai-qiao Wang, Shi-qiang Chen, Yong-ping Chen

“…The objective of this study is to discuss controllable circulatory ventilation (CCV) considering these issues. By calculating the equations of consumed air volume (CAV), diluting smoke-dust and CO, this study deduces the theoretical dimensionless equations governing the influence of two pollutants’ CAV on CCV application. …”
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Calculation and Analysis of Specific Losses of Active Power in Overhead Power Lines due to Corona in View of Climatic Data by D. A. Sekatski, N. A. Papkova

“…It is a very challenging task to correctly use weather data to calculate the active power loss due to corona in overhead power lines. …”
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