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1781
Numerical Simulation of the Effect of Long-Term Reclamation on the Flow and Sediment Concentration in Binhai Port,Yancheng
Published 2021-01-01“…Binhai Port is located at the most obvious corrosive coastline of the abandoned Yellow River delta in the north of Jiangsu Province,where the near-shore wave and flow dynamic is strong,the sediment movement is relatively active,the underwater terrain is complex and the slope erosion is obvious.Based on the measured hydrological and sediment data and a two-dimensional mathematical model for wave,tidal current and sediment,this paper quantitatively analyzes the influence of the long-term reclamation project on the flow and sediment concentration in the study area and the surrounding estuary,and emphatically discusses the back silting characteristics and deposition causes of the 300 000-ton channel during normal and rough weather.The results show that:After the implementation of the reclamation project,the flow and sediment characteristics of the study area don't change in a large scale,and mainly the flow and sediment near the project site is affected.The sediment is deposited after the channel dredging and a sediment deposit centered at the area with peak sediment concentration is formed in the channel,with decreasing deposition thickness to the port and outer sea channel.During rough weather,the maximum deposition thickness can reach 8~24 times of that in normal weather,but it is less than 0.2 m/d and there is no sudden silting and navigation blocking.…”
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1782
Dynamical Behavior of the SEIS Infectious Disease Model with White Noise Disturbance
Published 2022-01-01“…Mathematical model plays an important role in understanding the disease dynamics and designing strategies to control the spread of infectious diseases. …”
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1783
RESEARCH ON BLADE RADIUS AND INSTALLATION POSITION OF BI-DIRECTIONAL DIVERSION DEVICE
Published 2022-01-01“…By means of numerical analysis, established the mathematical model of velocity distribution, and calculated the optimal blade radius. …”
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1784
Numerical Simulation of Dispersed Particle-Blood Flow in the Stenosed Coronary Arteries
Published 2018-01-01“…A mathematical model of dispersed bioparticle-blood flow through the stenosed coronary artery under the pulsatile boundary conditions is proposed. …”
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1785
Cooperative Intercept Guidance of Multiple Aircraft with a Lure Role Included
Published 2018-01-01“…Under the assumption that the pursuing aircraft adopts the augmented proportional guidance law and first-order dynamics, a cooperative intercept mathematical model with an intercept angle constraint is established, allowing for the cooperative maneuvering of the evader. …”
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1786
Investigations of the Elongational Deformation Induced by Pins in Pin-Barrel Cold-Feed Extruders
Published 2022-01-01“…This paper is a study on the elongational deformation induced by pins in pin-barrel cold-feed extruders. The mathematical model is established by using simple flow field, plate model, and Newton constitutive relation. …”
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1787
SIMSCAPE Electrical Modelling of the IGBT with Parameter Optimization Using Genetic Algorithm
Published 2021-01-01“…The proposed method is based on the Genetic Algorithm (GA) to perfectly extract and optimize the model parameters using the mathematical model circuit equations and the provided datasheet characteristics. …”
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1788
Optimization of Damper Top Mount Characteristics to Improve Vehicle Ride Comfort and Harshness
Published 2014-01-01“…A detailed and accurate damper top mount mathematical model is implemented inside a validated quarter vehicle model to provide a realistic simulation environment for the optimization study. …”
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1789
The Stochastic Resonance Behaviors of a Generalized Harmonic Oscillator Subject to Multiplicative and Periodically Modulated Noises
Published 2016-01-01“…These useful results presented in this paper can give the theoretical basis for practical use and control of the SR phenomenon of this mathematical model in future works.…”
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1790
Modification Method of RV Cycloid Gear based on the Tooth Profile Pressure Angle Distribution
Published 2021-10-01“…Based on the pressure angle distribution trend obtained by calculation and analysis,the mathematical model of tooth profile modification with straight-line method is established,and the function representation between the tooth profile pressure angle and the modification amount is deduced,the tooth contact analysis model is constructed,and the transmission error of modified cycloid-pin gear is obtained. …”
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1791
A Thermo-Hygro-Coupled Model for Chloride Penetration in Concrete Structures
Published 2015-01-01“…By developing the reliable mathematical model of chloride penetration into concrete structures, it can help structural engineers and management agencies with predicting the service life of reinforced concrete structures in order to effectively schedule the maintenance, repair, and rehabilitation program. …”
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1792
On optimal chemotherapy with a strongly targeted agent for a model of tumor-immune system interactions with generalized logistic growth
Published 2013-03-01“…In this paper, a mathematical model for chemotherapy that takestumor immune-system interactions into account is considered for astrongly targeted agent. …”
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1793
Study on a Novel Cylindrical Gear Which Can Be High-efficiently Machined with the Continuous-index Milling Method
Published 2024-11-01“…Firstly, based on the gear meshing theory, the mathematical model of the cycloidal gear was deduced, the discrete tooth surface points were generated by the self-developed calculation software, and three-dimensional models were built. …”
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1794
The role of feedback in the formation of morphogen territories
Published 2008-02-01“…In this paper, we consider a mathematical model for the forma-tion of spatial morphogen territories of two key morphogens: Wingless (Wg)and Decapentaplegic (DPP), involved in leg development of Drosophila. …”
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1795
Hydrodynamic Characteristics and Riverbed Evolution Analysis of the Bazizui Straight Branching Channel in Xinjiang River Based on MIKE21
Published 2023-01-01“…To clarify the hydrodynamic characteristics and riverbed evolution trend of the branching channel bank in the Bazizui shipping section of Xinjiang River,this paper builds the two-dimensional mathematical model of the research water area by MIKE21 hydrodynamic module.It employs the hydrological data of Meigang Station to calibrate the model and verify the accuracy.On this basis,the hydrodynamic characteristics in different hydrological periods of the straight branching channel of Xinjiang River are analyzed,and the evolution trend of the branching channel section is clarified.The results show that the left branch is the main water branch,and the diversion ratio of the diversion channel decreases with the increase in flow.The velocity of flow is irregularly distributed and varies significantly between regions.The main stream appears in the left branch of the diversion section,and the maximum flow velocity is confirmed in the narrow part.The water level decreases uniformly from the diverging area to the confluence area.The overall stability of river pattern development and evolution is good,and the evolution of the water channel is mainly reflected in the local changes of riverbed scouring and silting in branching channels.The model can effectively simulate the diversion ratio and water level variation of the branching channel,which can provide a scientific basis for the study of river safety protection and navigation stability.…”
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1796
State Estimation Based on Sigma Point Kalman Filter for Suspension System in Presence of Road Excitation Influenced by Velocity of the Car
Published 2019-01-01“…This paper presents the method using the sigma point Kalman filter to estimate the suspension system’s states including the road excitation, the deflections, and the velocities of the sprung mass and unsprung mass. The mathematical model of the suspension system is rewritten for the state estimation problem, and the stochastic load profile is supposed the main noise input. …”
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1797
Design and Implementation of Community Pension Service Quality Evaluation System Based on Clustering Algorithm
Published 2022-01-01“…This paper puts forward a community evaluation model which accords with the clustering model: community elderly care service quality evaluation method. AIS-OR mathematical modeling is carried out. Under the guidance of the model, the secondary indicators are analyzed and determined, and the mathematical model of indicator evaluation is constructed. …”
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1798
Ulam Stability, Lyapunov-Type Inequality, and the Eigenvalue Problem for Model of Discrete Fractional-Order Deflection Equations of Vertical Columns and a Rotating String with Two-...
Published 2024-12-01“…In particular, it seems that the exploration of the stability of DFC is crucial. A mathematical model of the discrete fractional equation describing the deflection of a vertical column along with two-point boundary conditions featuring the Riemann–Liouville operator is constructed to study several kinds of Ulam stability results in this research work. …”
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1799
Analysis and Establishment of the Isothermal Elastohydrodynamic Lubrication Model of the Cylindrical Gear with Arcuate Tooth Trace
Published 2015-01-01“…The cylindrical gear with arcuate tooth trace has advantages of high bearing capacity,high contact strength and steady transmission,etc.But there are also failure modes such as the wear of tooth surface,pitting and scuffing when it drives,it is mainly because of the bad lubricating condition.So ensuring that it is always in good lubricity would be critical.After analyzing the meshing contact process of cylindrical gears with arcuate tooth trace,the contact model of gears is simplified.Based on the elastohydrodynamic lubrication theory,the physical and mathematical model of isothermal elastohydrodynamic lubrication for the cylindrical gear with arcuate tooth trace are established.Through the direct iterative method and Fortran procedure,the numerical solution of the model is solved and the characteristic curves of oil film are got.The influences that entrainment velocity,load and viscidity bring to lubrication characters of the cylindrical gear with arcuate tooth trace are analyzed and compared.The results show the entrainment velocity is the most important cause for the oil film thickness,the viscidity has important influences both on the oil film pressure and thickness,and the load influences less relative to other two factors.Besides,using the oil film thickness ratio,the lubrication state of gears could be estimated,which helps keeping gears approach the elastohydrodynamic lubrication state when designing.…”
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1800
An Improved Genetic Algorithm Based Robust Approach for Stochastic Dynamic Facility Layout Problem
Published 2018-01-01“…Mont Carlo simulation method is used to randomly generate different scenarios. A mathematical model is established to describe the dynamic facility layout problem with the consideration of transport device assignment. …”
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