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19761
Effect of Fast Freeze-Thaw Cycles on Mechanical Properties of Ordinary-Air-Entrained Concrete
Published 2014-01-01“…The effects of fast freeze-thaw cycles on the mechanical properties (compressive strength and cleavage strength) of ordinary-air-entrained concrete materials are investigated on the basis of the experimental results. And the concise mathematical formula between mechanical behavior and number of fast freeze-thaw cycles was established. …”
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19762
Investigation on Dynamic Recrystallization Behavior of Martensitic Stainless Steel
Published 2014-01-01“…The hot deformation behavior of X20Cr13 martensitic stainless steel was studied using the hot compression flow curves corresponding to the temperature range of 900–1150°C under strain rates from 0.01 to 10 s−1. A new mathematical model to estimate the flow stress under hot deformation conditions up to the peak of the flow curves was developed. …”
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19763
Evaluation of the Response of Posttensioned Steel Frames with Energy Dissipators Using Equivalent Single-Degree-of-Freedom Systems
Published 2014-01-01“…Five multi-degree-of-freedom (MDOFS) PTSF and their corresponding ESDOFS are studied under the action of 30 seismic motions recorded in soft ground, scaled in terms of the spectral pseudoacceleration evaluated at the fundamental period of the structures. Several simple mathematical expressions are proposed. The first expression is useful to calculate modifying factors (FMEH) to relate EH of the ESDOFS with that of the MDOFS; the second is to determine the interstory drift (γ) as a function of the seismic intensity. …”
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19764
Estimation of Tabriz population based on exponential and logistic growth models for water scarcity analysis
Published 2024-12-01“…Therefore, in this research, a specific mathematical equation is introduced for predicting the Tabriz population in the future and two linear and quadratic equations are introduced for water consumption demand. …”
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19765
Performance Analysis of Reheat Steam Temperature Control System of Thermal Power Unit Based on Constrained Predictive Control
Published 2019-01-01“…Firstly, the process and mathematical model of reheat steam temperature control system are introduced. …”
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19766
Analysis of Scraper Conveyor Chain Drive System based on Matlab and VB
Published 2016-01-01“…In order to improve the efficiency and reliability of the scraper conveyor chain drive system parametric design,the finite element mathematical model is built and the parametric analysis and calculation is carried out by using the software interface of optimizing design for scraper conveyor developed on the basis of VB by calling database information and using com pieces interface technology of Matlab. …”
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19767
The Quick Measure of a Nurbs Surface Curvature for Accurate Triangular Meshing
Published 2014-04-01“…Finding the surface point whose projection is located inside the mesh triangle and which is the tangency point to the plane parallel to this triangle is an optimization problem. Mathematical description of the problem and the algorithm to find its solution are also presented in the paper.…”
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19768
Joint optimization algorithm for enhanced inter-cell interference coordination in heterogeneous networks
Published 2016-02-01“…Through analyzing the existing system interference, mathematical model was established and a joint optimization algorithm for eICIC was raised based on the reduced power almost blank subframe. …”
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19769
Edge Computing in an IoT Base Station System: Reprogramming and Real-Time Tasks
Published 2019-01-01“…This paper includes a theoretical mathematical model that demonstrates the dynamic characteristics of BSIS along with a formulation for implementing BSIS in practice. …”
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19770
Research of the Virtual Test Method for Dynamic Load Simulation of Automatic Transmission
Published 2017-01-01“…In order to achieve EM-CVT dynamic load simulation,the dynamic load simulation method is researched by using MATLAB/Simulink to establish the mathematical model of automatic transmission dynamic load simulation system and combining with the speed tracking control algorithm.The virtual test is carried out,which refers to a section of the NEDC city cycle,the EPA performance index is introduced to evaluate the system performance. …”
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19771
Applications of Gene Expression Programming for Estimating Compressive Strength of High-Strength Concrete
Published 2020-01-01“…Empirical relation with mathematical expression has been proposed using engineering programming. …”
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19772
MODELING AND ANALYSIS OF THE LIMIT BENDING-RADIUS FOR STRAIGHTENING A THIN-WALLED TUBE WITH EQUAL CURVATURE
Published 2015-01-01“…The limit bending-radius as the main straightening technical parameter,decides the structure of equipment and the quality of products for straightening thin-walled tubes with equal curvature,however,it is usually carried out based on the experiential data and chart by skilled labourers,whose art is based on long experience and experiments,the special mathematical model of the limit bending-radius is immediately necessary. …”
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19773
Discussion on Reciprocity, Unitary Matrix, and Lossless Multiple Beam Forming Networks
Published 2015-01-01“…In this paper, array antennas fed by multiple beam forming networks are discussed, highlighting the possibility to have different values of internal losses in the beam forming network depending on the operation mode. In particular, a mathematical condition is derived for the specific case of a multiple beam forming network with lossless transmitting mode and lossy receiving mode, such a behavior being fully consistent with the reciprocity theorem. …”
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19774
Effect of the Boron Powder on Surface AISI W2 Steel: Experiments and Modelling
Published 2021-01-01“…The presence of boride was confirmed by optical microscopy, X-ray diffraction, and the distribution of alloy elements in boride layers with energy-dispersive spectrometry using scanning electron microscopy. A mathematical model of the growth kinetics of the single layer was proposed and boron diffusion coefficient was determined by mass balance equation. …”
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19775
Laminar Motion of the Incompressible Fluids in Self-Acting Thrust Bearings with Spiral Grooves
Published 2014-01-01“…The purpose of the study is to find some mathematical relations useful to approach the theoretical functionality of these bearings having magnetic controllable fluids as incompressible fluids, in the presence of a controllable magnetic field. …”
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19776
STATISTICAL ANALYSIS OF FATIGUE CRACK GROWTH TEST DATA FOR 2024-T62 ALUMINUM ALLOY
Published 2019-01-01“…The fatigue crack growth tests for 2024-T62 aluminum alloy were conducted under three stress levels, the dispersion of fatigue crack growth were analyzed by using experimental data based on mathematical statistics. The analysis results indicate that the experimental data of fatigue crack growth obey the log-norm distribution. …”
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19777
Modeling Wettability Variation during Long-Term Water Flooding
Published 2015-01-01“…This paper summarizes the mechanism of wettability variation and characterizes the adsorption of polar substance during long-term water flooding from injecting water or aquifer and relates the residual oil saturation and relative permeability to the polar substance adsorbed on clay and pore volumes of flooding water. A mathematical model is presented to simulate the long-term water flooding and the model is validated with experimental results. …”
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19778
Biomechanical Stress and Strain Analysis of Mandibular Human Region from Computed Tomography to Custom Implant Development
Published 2017-01-01“…In addition to creating biomodels by computed tomography it is also possible, using this process, to create mathematical models to perform computer simulations and analyses of regions of interest. …”
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19779
Multi-objective Optimization Design of Wet Friction Clutches
Published 2023-05-01“…The minimum drag torque and maximum engagement torque are the optimization objectives, the mathematical model of the optimization design is established, and the solution method of the optimization toolbox of Matlab is given. …”
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19780
Event Forecasting in Organizational Networks: A Discrete Dynamical System Approach
Published 2022-01-01“…Therefore, the objective of this study was (1) to fill the theoretical gap by proposing a mathematical model for organizational network event forecasting, rooted in the social science to remain consistent with the theory, and (2) to experimentally evaluate how the model performs on real data and validate if the results support its use in practical applications. …”
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