OPTIMIZATION OF THE CONE BIT OF SPHERICAL FLOATING SLEEVE BASED ON RESPONSE SURFACE METHODOLOGY by HE Wei, SHEN PingSheng, LI HuaChuan, CHEN Yang, HE JunChao, HUANG Shuai

“…In order to improve the life of the cone bit sliding bearing,eliminates the edge stress concentration phenomenon of the spherical floating sleeve end portion,the circular groove structure of Spherical floating sleeve was optimized by the combination of response surface methodology and the finite element method. the objective function was established by along the contact line of the middle stress σmand end stress σedifference between the floating sleeve of outer spherical surface and inner surface,σ₁、σ₂ was called objective function,The distance from the center of the circular groove to the floating sleeve surface h and the radius r of the circular groove and the distance from the center of the circular groove to the end face of the floating sleeve t was design variable,so the optimization of mathematical model was established. By regression analysis model,obtained the circular groove of optimal controllably parameters: r = 0. 53 mm、t = 0. 07 mm、h = 1. 10 mm. …”
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A Comparative Study of Some Point Process Models for Dynamic Networks by S. Haleh S. Dizaji, Saeid Pashazadeh, Javad Musevi Niya

“…These models have solid mathematical assumptions, making them interpretable but decreasing their generalizability for different datasets. …”
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Methods and Models for Metabolic Assessment in Mice by G. Pacini, B. Omar, B. Ahrén

“…For all these experiments, including some commonly adopted variants, we describe: (i) their performance; (ii) their advantages and limitations; (iii) the empirical formulas and mathematical models implemented for the analysis of the data arising from the experimental procedures to obtain reliable measurements of peripheral insulin sensitivity and beta cell function. …”
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Disturbance Evolution Behavior of Loess Soil under Triaxial Compression by Yali Xu, Panpan Guo

“…Second, two disturbance functions with different parameters were proposed to quantify mathematically the structural effects of loess. Finally, the proposed disturbance functions were validated against documented test results by other researchers. …”
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Thermodynamic properties in ternary system of NHHCO–HO–ethanol based on antisolvent method to strengthen crystallization of carbonized ammonia by Yu Zhang, Dongdong Feng, Jianmin Gao, Qian Du, Shaohua Wu

“…In this paper, the solubility curves under different temperature and solvent compositions were determined by static method and the mathematical model of solubility was established. The effects of the addition of ammonium carbamate which was produced in the initial stage of the CO 2 absorption process and the addition of ammonia on the solubility in ternary system of NH 4 HCO 3 –H 2 O–ethanol were studied. …”
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Experimental and computational study on dynamic analysis of cracked simply supported structures under moving mass by Cihan O. Bulut, Shakti P. Jena, Serpil Kurt

“…The transverse open cracks with numerous damage scenerios are considered for the mathematical modelling of the system. The governing equations of motion for the system have been obtained and the equations have been solved by the help of Duhamel integral technique. …”
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Sizing and Simulation of PV-Wind Hybrid Power System by Mustafa Engin

“…A sizing procedure is developed for hybrid system with the aid of mathematical models for photovoltaic cell, wind turbine, and battery that are readily present in the literature. …”
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Research on Meshing Principle and Active Design Method of Uniform-variable Gear Drive by Jian Wang, Jianming Fan, Yong Feng

“…According to the characteristics of smooth curve and closed pitch curve，the mathematical models of pitch curves are derived based on given motion feature of the driven gear. …”
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Volumetric Denoising of XCT Data Using Quantum Computing by Thomas Lang, Anja Heim, Anastasia Papadaki, Kilian Dremel, Dimitri Prjamkov, Martin Blaimer, Markus Firsching, Stefan Kasperl, Theobald O.J. Fuchs

“…An adaptation of a mathematical denoising model was transformed to be suitable for quantum implementation, and preliminary experiments demonstrated its functionality with two-dimensional images. …”
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Simulation of a multi-layered facility location model by cosidering queueing theory by Mahdi Yousefi Nejad Attari, Saeed Kolahi-Randji, Aniseh Neishabouri Jami

“…In order to solve the mathematical model, discrete event simulation approach has been used to increase efficiency. …”
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Dynamic Study of a Capacitive MEMS Switch with Double Clamped-Clamped Microbeams by Hatem Samaali, Fehmi Najar, Slim Choura

“…We first develop a mathematical model for the MEMS switch where the upper microbeam represents the ground transmission line and the lower one represents the central transmission line. …”
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Fault Diagnosis Research on Impact System of Hydraulic Rock Drill Based on Internal Mechanism Testing Method by Yelin Li, Youxin Luo, Xiao Wu

“…At the same time, the mathematical method is used to deal with the test curve, and the influence of pressure pulsation characteristics of the front and rear chambers of the impact piston and the left and right valve chambers of the reversing valve on the impact performance of the rock drill is analyzed. …”
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Análise geossistêmica e quantificação de perda de solo da bacia do Rio Mutum-Paraná (RO) by Michel Watanabe, Fabiano Antonio de Oliveira, Dorisvalder Dias Nunes, Tatiane Emilio Checchia

“…Its advantage is the fact that it is a full modeling that, when using statistical parameters and mathematical equations, tends to ensure good accuracy in the results. …”
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A cooperative jamming decision-making method based on multi-agent reinforcement learning by Bingchen Cai, Haoran Li, Naimin Zhang, Mingyu Cao, Han Yu

“…The proposed approach achieves high-quality and efficient target allocation, jamming mode selection, and power control. Mathematical models for radar systems and active jamming are developed to represent a multi-jammer and multi-radar electromagnetic confrontation scenario. …”
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Measurement of event data from text by Patrick T. Brandt, Marcus Sianan

“…The focus is on how to compare and quantify the mathematical and/or conceptual distance between what a machine codes/classifies from information describing an event and the actual circumstances of the event, or the ground truth. …”
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The Role of Initial Credit Distribution Scheme in Managing Network Mobility and Maximizing Reserve Capacity: Considering Traveler’s Cognitive Illusion by Fei Han, Lin Cheng

“…The uniqueness of the UE link flow and market equilibrium (ME) credit price is also investigated. Furthermore, the mathematical program with equilibrium constraint (MPEC) for the optimal ICDS design problem is established, with the optimization objective being maximizing network reserve capacity. …”
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A Three-Phase Bidirectional Grid-Connected AC/DC Converter for V2G Applications by Jingang Han, Xiong Zhou, Song Lu, Pinxuan Zhao

“…Firstly, the configuration of V2G systems is introduced, and the mathematical model of the AC/DC converter is built. Then, for bidirectional AC/DC converters, the grid voltage feedforward decoupling scheme is applied, and the analysis of PI control strategy is proposed and the controller is designed. …”
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Tajikistan’s business sector for years of independence: problems and development models by A. A. Urunov, I. M. Morozova, K. K. Zoidov, M. G. Mansurova

“…The purpose of the study is to develop strategic priorities for the development of the business sector of Tajikistan based on the analysis of the structure of the economy of the republic and its dynamics, as well as the use of economic and mathematical modeling of the object under study. The article identifies the main obstacles to the development of the business sector, including: inefficient functioning of management institutions and the market; insufficient development of human capital; underdeveloped industrial and social infrastructure, as well as the legal framework governing the relations of the state, business, labor, etc. …”
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METHODS OF CHOOSING PARENTAL PAIRS FOR CROSSES IN THE BREEDING OF SELF-POLLINATING CROPS FOR YIELD by S. B. Lepekhov

“…Meanwhile, as a result of extensive exchange of breeding material, this ecogeographical approach to the matching of pairs has lost its relevance, being replaced by the new methods of finding phenotypic and genotypic differences between parents. However, new mathematic methods have failed to win similar general recognition. …”
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Design and Analysis of Continuously Variable Transmission based on Nested Structure by Jianming Shen, Jinfu Liu, Juan Li, Shouqi Chen, Linsen Xu, Zhengyan Jiang, Zhipeng Liu, Xingcan Liang

“…Firstly，the mechanism of variable speed transmission is studied to obtain the relationship between transmission ratio and the ratio of planetary gear to sun gear radius，and the nested structure and the axial movement system of planetary gear and sun gear plate are designed. Secondly，the mathematical models of envelope angle on planetary and sun gear，transmission ratio，and radial movement of metal belt are deduced. …”
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