Generalized approach for rapid entropy calculation of liquids and solids by Qi-Jun Hong, Zi-Kui Liu

“…The proposed method utilizes a single trajectory of molecular dynamics (MD) to facilitate the calculation of entropy, which is composed of three components. …”
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Improved Model for GIC Calculation in the Mexican Power Grid by R. Caraballo, J. A. González‐Esparza, C. R. Pacheco, P. Corona‐Romero

“…We compared the observed and calculated GIC between August and November 2021 at a coastal 400 kV substation. …”
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CALCULATION OF INDUCTANCE OF THE INTERIOR PERMANENT MAGNET SYNCHRONOUS MOTOR by Phyong Le Ngo

“…An analytical method to calculate own inductances and mutual inductances of a three-phase IPMSM is presented. …”
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Calculation and Analysis of Meshing Contact of Involute Spur Gear by Yuda Wang, Lü Hongzhan, Zhiyong Hou, Shuyan Wang, Weiguang Ma, Feng Li

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Calculation Method of Gravity Center and Moment of Radial Gate by LAN Qin, DUAN Dongxu, LIAO Yuhai, CHENG Zhong

“…The gravity moment of radial gate is an important factor affecting the opening and closing force.In this paper,the analytical formulas of gravity,gravity center and gravity moment of radial gate are derived theoretically,and the influence of two parameters of its gravity center (radius r_G and inclination θ_G) on its opening and closing force are analyzed.On these basis,a simple method for calculating its gravity center is presented.Taking the spillway radial gate and spillway tunnel radial gate of Pankou hydropower station as examples,the rationality and superiority are verified.The results show that compared with the results of empirical formula and 3d model,combination method and rotation method have the advantages of high accuracy and versatility;rotation method is more convenient than the combination method and is an optimal calculation method for gravity center of radial gate.In the two parameters of center of gravity,radius r_G has a greater influence on the opening and closing force of radial gate,and inclination θ_G has a less influence on it.The simple calculation formula is suitable for radial gate without local weighting block,which can overcome the disadvantage of complex calculation of rotation method.In order to achieve high precision and efficiency,the applicability and advantages of empirical formula,rotation method and simple method should be comprehensively utilized in the design.…”
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The features of kinematic calculation for Wankel’s rotary piston engine by Yu. P. Makushev, T. A. Polyakova, L. Yu. Volkova, V. V. Ryndin

“…Using the Mathcad system as an example, it is shown the possibility of application mathematical software packages for calculations related to the study of the features of the Wankel’s RPD epitrochoid, its calculation, its research and its construction.…”
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Calculation of mathematical models of biological type multiplication and growth by Antanas Lapinskas, Renatas Lapinskas

“…Calculation scheme consist of 3 sub­systems: simulation of design parameters, simulation of external effects and calculation of state parameters. …”
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RETRACTED: The method of calculating sprinklers for wide-reach sprinklers by Zhuravleva Larisa

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Using a Financial Calculator to Make Financial Decisions by Josephine Turner

“… Many financial problems can be solved quickly and easily using a financial calculator. Although calculations involving compound interest, periodic payments, and declining or increasing balances are complex, a financial calculator makes them simple. …”
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Method of Calculating Reservoir Sedimentation and Its Application to Engineering by 浦承松, 谢波

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Probe into Simplified Calculation of Precipitation in Pu'er City by LIU Chun-xiang, WU Jie, YANG Kai-ju

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Mode Calculation and Testing of a Car Body in White by Ying Yang, Guangyao Zhao, Dongbo Ma, Xiaobin Xu

“…Based on the finite element method, the model of a BIW is developed in which the welding points are treated specially as a new element type and the vibration modes of it are calculated. In modal testing, a fixed sine-sweeping exciter is used to conduct a single-point input force for the structure, whereas the output responses are picked up at different points to identify modes. …”
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On the Reform of Price Calculation Patterns in Construction Work in China by 张永红, 邓抒豪

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The analysis of methods for calculating seals of hybrid power machines by E. A. Pavlyuchenko, A. S. Tegzhanov, V. E. Shcherba, E. A. Lysenko, A. K. Kuzhbanov

“…The article discusses the main methods for calculating seals of hybrid power machines. The analysis of works on the designs of hybrid power machines is carried out. …”
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Correlation calculation decrypting for BSS-based image cryptosystem by LIN Qiu-hua, DANG Jie, YIN Fu-liang

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Optimization of Engineering Pipe-Line Networks at Hydraulic Calculation by A. Savastsiyonak

“…The given paper proposes a methodology for hydraulic calculation of engineering pipeline networks. This methodology allows to reduce cost of the networks up to 5% at the stage of designing while ensuring the same technological parameters and reliability…”
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Using a Financial Calculator to Make Financial Decisions by Josephine Turner

“… Many financial problems can be solved quickly and easily using a financial calculator. Although calculations involving compound interest, periodic payments, and declining or increasing balances are complex, a financial calculator makes them simple. …”
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Calculation method improvement of damaged elements of steel structures by G. I. Belyy, E. A. Matveev

“…There is no method for calculating elements with such damages. At the same time, “normative” strength testing of undamaged elements under two or more parametric loading leads to underestimated results. …”
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Load Contact Analysis and Strength Calculation of Spur Gear by Wang Yunzhi

“…According to the calculation results of LTCA,an approximate calculation method of spur gear is proposed,the life of spur gear pair is calculated. …”
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The Influence of Orbital Element Error on Satellite Coverage Calculation by Guangming Dai, Xiaoyu Chen, Mingcheng Zuo, Lei Peng, Maocai Wang, Zhiming Song

“…This paper studies the influence of orbital element error on coverage calculation of a satellite. In order to present the influence, an analysis method based on the position uncertainty of the satellite shown by an error ellipsoid is proposed. …”
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