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1681
Modeling and Control of the Public Opinion: An Agree-Disagree Opinion Model
Published 2020-01-01“…In this paper, we aim to investigate optimal control to a new mathematical model that describes agree-disagree opinions during polls, which we presented and analyzed in Bidah et al., 2020. …”
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1682
Vehicle Routing Problem with Soft Time Windows Based on Improved Genetic Algorithm for Fruits and Vegetables Distribution
Published 2015-01-01“…Fresh fruits and vegetables, perishable by nature, are subject to additional deterioration and bruising in the distribution process due to vibration and shock caused by road irregularities. A nonlinear mathematical model was developed that considered not only the vehicle routing problem with time windows but also the effect of road irregularities on the bruising of fresh fruits and vegetables. …”
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1683
Sensing Coverage Prediction for Wireless Sensor Networks in Shadowed and Multipath Environment
Published 2013-01-01“…We have proposed a new sensing channel model that considers combined impact of shadowing fading and multipath effects. A mathematical model for calculating coverage probability in the presence of multipath fading combined with shadowing is derived based on received signal strength (RSS). …”
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1684
Design, Modeling, and Analysis of a Novel Hydraulic Energy-Regenerative Shock Absorber for Vehicle Suspension
Published 2017-01-01“…At first, the schematic of HERSA is presented and a mathematic model is developed to describe the characteristic of HERSA. …”
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1685
Natural Frequncies of Coupled Blade-Bending and Shaft-Torsional Vibrations
Published 2007-01-01“…In this study, the coupled shaft-torsional and blade-bending natural frequencies are investigated using a reduced order mathematical model. The system-coupled model is developed using the Lagrangian approach in conjunction with the assumed modes method to discretize the blade bending deflection. …”
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1686
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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1687
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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1688
A sustainable HazMat logistic network design considering scale of economy and route sensitivity and solving with Hybrid GA-SA
Published 2024-09-01“…This study presents a mathematical model for vehicle routing of HazMat from economic, route sensitivity, and uncertainty perspectives. …”
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1689
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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1690
Analysis of Density Wave Oscillations in Helically Coiled Tube Once-Through Steam Generator
Published 2016-01-01“…Based on the steady-state calculation, the mathematical model of single-channel system was established, and the transfer function was derived. …”
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1691
On the basic reproduction number $R_0$ in sexual activity models for HIV/AIDS epidemics: Example from Yunnan, China
Published 2007-07-01“…Heterogeneity in sexual behavior is known to play an important role in the spread of HIV. In 1986, a mathematical model based on ordinary differential equations was introduced to take into account the distribution of sexual activity. …”
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1692
Integrated hybrid model of sustainable supply chain in cement industry
Published 2023-09-01“…Then, the relevant mathematical model was presented and solved in GAMS software using NSGA-II method in MATLAB software. …”
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1693
Variable Volumetric Stiffness Fluid Mount Design
Published 2004-01-01“…In this paper, the new design concept, and its mathematical model and simulation results will be presented.…”
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1694
The Research of Maneuverability Modeling and Environmental Monitoring Based on a Robotic Dolphin
Published 2021-01-01“…Additionally, an added tail joint allows for the turning movement with efficient parameters obtained by a fluid-structure coupling method. To obtain a mathematical model, several disturbance signals were considered, including systematic uncertainties of the parameters, the perpetually changing environment, the interference from obstacles with effective fuzzy rules, and a sliding mode of control. …”
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1695
Numerical Simulation of Shale Gas Multiscale Seepage Mechanism-Coupled Stress Sensitivity
Published 2019-01-01“…Additionally, a mathematical model comprising multiscale, geomechanics, and adsorption phenomenon was proposed to characterize gas flow in the shale reservoir. …”
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1696
Performance Prediction Model of Dynamic Pressure Oil-Air Separator
Published 2021-01-01“…Based on the aeroengine lubricating oil system test bench, this paper used a dimensional analysis method to establish a mathematical model for predicting the separation efficiency and resistance of a dynamic pressure oil-air separator suitable for engineering. …”
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1697
Instability Condition Derivation for Hydraulic AGC System under Pressure Closed-Loop Control
Published 2021-01-01“…In this work, for each component of the HAGC system, the mathematical model was established. And on the basis of the linking relation of various elements, we derived the incremental transfer model of the PCL system. …”
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1698
The impact of an imperfect vaccine and pap cytologyscreening on the transmission of human papillomavirus and occurrenceof associated cervical dysplasia and cancer
Published 2013-05-01“…A mathematical model for the natural history of human papillomavirus(HPV) is designed and used to assess the impact of a hypotheticalanti-HPV vaccine and Pap cytology screening on the transmissiondynamics of HPV in a population. …”
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1699
Research on the spatial state and electrical distance variation of overhead transmission lines with changes in foundation
Published 2025-01-01“…These factors include the degree of tower sinking, the elasticity and tension of the overhead lines, the positions and heights of adjacent towers, wind force, temperature, and other environmental elements. A mathematical model was developed to describe the positional changes of overhead lines following tower sinkage, and formulas were used to calculate the new suspension point positions and electrical distance variations of the wires. …”
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1700
A new efficient genetic algorithm-Taguchi-based approach for multi-period inventory routing problem
Published 2023-12-01“…In this paper, we present a mathematical model and a novel genetic algorithm for solving the multi-period inventory routing problem. …”
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