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20401
Design and Analysis of the Tooth Profile of Double Generating-wave Swing-rod Movable Tooth Drive
Published 2015-01-01“…The change law of central wheel curvature radius is illustrated based on the same mathematical model analysis,the non- interference conditions of equidistant teeth profile are given. …”
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20402
FEATURES OF APPLICATION OF GRAPHS FOR THE ANALYSIS OF INFORMATION FLOWS
Published 2018-10-01“…Besides the analysis of the results obtained in monitoring the flow of information requires a mathematical evaluation of the studied processes in the information field and forming conclusions on prospects of development of these information flows. …”
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20403
Parachute-Payload System Flight Dynamics and Trajectory Simulation
Published 2012-01-01“…The results presented for a realistic case study define the sensitivity of the simulation outputs to the functional complexity of the mathematical model. Far from being an absolute address for the software designer, this paper tries to contribute to the area of interest with some technical considerations and clarifications.…”
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20404
Estimation of Corrosion-Free Life for Concrete Containing Ground Granulated Blast-Furnace Slag under a Chloride-Bearing Environment
Published 2017-01-01“…The rate of chloride transport by diffusion in concrete containing ground granulated blast-furnace slag (GGBS) was mathematically estimated to predict the corrosion-free service life of concrete structures exposed to seawater environment. …”
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20405
Checking the consistency of 3D geological models
Published 2025-01-01“…<p>Three-dimensional geological modelling algorithms can generate multiple models that fit various mathematical and geometrical constraints. The results, however, are often meaningless to geological experts if the models do not respect accepted geological principles. …”
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20406
Novel SPH and MPS Laplacian Models Improved by MLS Method for Solving Poisson equations
Published 2024-12-01“…Recently, two modified Laplacian models [1, 2] have been proposed by using different efficient mathematical techniques, and the analogy between SPH and MPS methods. …”
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20407
Data transmission strategy of P2P pattern live video media streaming system
Published 2011-01-01“…An algorithm optimization was made with improved simulated annealing algorithm aimed at data transmission strategy of streaming media system in P2P networks.According with global layout,a mathematic model have been estab-lished for data transmission strategy of streaming media system in P2P networks named VMDTSA-P2P,which com-pletely have considered the affection of both the out-bandwidth and the available time,and take them as the object func-tion for getting the optimum solution.It also optimized the solutions with improved simulated annealing algorithm.Compared with traditional data transmission strategies,this improved algorithm accelerates the speed of new nodes choose the data provider from its partner nodes when there are lots of users and insures the solution of the data provider is approximate the best.Thus,the play delay of the streaming media system is decreased and the quality of video playback is increased.By realizing it in a simulated P2P system,the accuracy and the efficiency were both verified in the simulation.…”
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20408
Settlement Prediction Based on the Relationship between the Empirical and Analytical Solutions of a Cylindrical Cavity under Undrained Conditions
Published 2023-01-01“…Thus, this study proposes an approximate solution under undrained conditions, based on the relationship between the empirical and analytical methods for predicting ground settlement around a cylindrical cavity. Based on mathematical formulas, the results obtained by the geometrical representation are then associated with the experimental data. …”
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20409
Separation of Branched Hexane Isomers on Zeolite BETA
Published 2007-04-01“…At the partial pressures studied, it was found that the degree of branching was related to the affinity; the sorption hierarchy was most favourable towards the linear isomer and least favourable towards the di-branched ones. A mathematical model based on a linear driving force (LDF) was developed and used to test the experimental data. …”
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20410
Formation of Residual Bubbles in Diesel Engine Nozzle and Their Influence on Initial Jet
Published 2021-01-01“…Establish a cavitation mathematical model to analyze the details of internal flow and initial jet. …”
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20411
Traction Synchronous Machine with Rotor Field Winding and Two-Phase Harmonic Field Exciter
Published 2025-01-01“…This article discusses the advantages of the proposed design over conventional solutions. A simplified mathematical model based on the finite element method for steady state simulation is presented. …”
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20412
Compressed Sensing-Based Order Analysis for Blade Tip Timing Signals Measured at Varying Rotational Speed
Published 2020-01-01“…Its feasibility comes from the sparsity of BTT vibration signals in the order domain. The mathematical model for the proposed method was built, and the optimizing principles for sensor number and sensor arrangement were given. …”
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20413
Flight Dynamics Modeling and Dynamic Stability Analysis of Tilt-Rotor Aircraft
Published 2019-01-01“…The aim of this paper is to develop a nonlinear flight dynamics mathematical modeling method of tilt-rotor aircraft and investigate the dynamic stability characteristics of tilt-rotor aircraft. …”
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20414
Taxi Efficiency Measurements Based on Motorcade-Sharing Model: Evidence from GPS-Equipped Taxi Data in Sanya
Published 2018-01-01“…In this study, Distance Formula was built to calculate distances by GPS data based on mathematical equations, and Motorcade-Sharing (MS) Model was proposed to improve the efficiency of collaborative vehicles. …”
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20415
A DSP-Controlled Permanent Magnet Synchronous Motor Control System for Hybrid Vehicles
Published 2022-01-01“…Combined with the basic equation of PMSM and the transmission system of the hybrid vehicle, the mathematical model of PMSM-EV was established. The experimental results show that the maximum torque current ratio control method applied to hybrid vehicles can effectively reduce the loss, improve the efficiency and dynamic performance, and solve the endurance problem of hybrid vehicles to a certain extent. …”
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20416
Determination of production capacity for open-pit coal mines under uncertainty: A model based on economies of scale.
Published 2025-01-01“…Using a large-scale open-pit mine as a case study, the relationships and calculation tables for the uncertainties of key control factors are provided. Based on this, a mathematical expression for total revenue under the influence of multiple uncertainties is formulated, and the optimal capacity range is calculated. …”
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20417
Networking Method for the Structure of a Large Modular Deployable Space Antenna
Published 2022-01-01“…On the basis of basic theories of differential geometry, analytical geometry, and robotics, the mathematical model of an envelope circle and that of its center are established. …”
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20418
Performance analysis of DSSS system with periodic sequence against CW interference1
Published 2007-01-01“…Based on the brief account of the performance analysis result of direct sequence spread spectrum(DSSS) system against single tone continuous wave(CW) interference obtained from the traditional stand Gaussian approximation(SGA) hypothesis,the mathematical expression of the interference component of the symbol decision variable in the periodic sequence DSSS system under CW interference was deduced and the actual performance of DSSS system with a periodic sequence against CW interference was researched by theoretical analysis and numerical simulations.The results indicate that the interference component of the symbol decision variable in the periodic sequence DSSS system under CW interference takes on a constant level or a monochromatic fluctuation,which does not approach the standard Gaussian distribution,and the actual performance of DSSS system with a periodic sequence against CW interference is completely different from the analytic result resorted to the stand Gaussian approximation(SGA).The bit error performance is correlative not only with the interference-signal ratio(ISR),with the frequency offset and with phase of the CW interference sensitively,but also with the individual spread spectrum code sequence.…”
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20419
DYNAMIC MODEL OF THE BUDGET OF AN EDUCATIONAL INSTITUTION
Published 2024-12-01“…For the study of complex socio-economic systems in a number of cases the method of mathematical modeling is the most acceptable. One of the most famous models in economics is the Keynes model. …”
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20420
Herdsmen’s Adaptation to Climate Changes and Subsequent Impacts in the Ecologically Fragile Zone, China
Published 2013-01-01“…The empirical analysis was first carried out on the impacts of the adaptation measures of herdsmen on their income in the context of the climate change with the positive mathematical programming (PMP) model on the basis of the household survey data in the Three-River Source Region, an ecologically fragile area in Qinghai Province, China. …”
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