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18141
Bayesian Probabilistic Framework for Damage Identification of Steel Truss Bridges under Joint Uncertainties
Published 2013-01-01“…The former could lead to model uncertainties due to the discrepancy between physical configurations and their mathematical models, while the latter could induce model parameter uncertainties due to difficulty in obtaining accurate model parameters of complex joint details. …”
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18142
Laws of Gas Diffusion in Coal Particles: A Study Based on Experiment and Numerical Simulation
Published 2021-01-01“…Then, according to Fick diffusion law and Darcy percolation law, the mathematical models of methane emission from the spherical coal particles were created, respectively, and the corresponding calculating software was programmed by the finite difference method to obtain the simulated CMDQ of each sample under different conditions. …”
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18143
Numerical Simulation Study on In-Depth Profile Control of Core–Shell Coagulation System Considering the Time-Variation of Permeability
Published 2024-01-01“…Considering these two phenomena comprehensively, a new three-dimensional, three-phase, six-component mathematical model that can take into account the time-varying phenomenon of reservoir permeability is proposed for a new kind of in-depth profile control system, namely, the core–shell coagulation system, and an integrated numerical simulation software is developed. …”
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18144
Gas-Water Flow Behavior in Water-Bearing Tight Gas Reservoirs
Published 2017-01-01“…Based on the experimental results, this paper presents mathematical models to describe flow behaviors of gas and water in tight gas formations; the threshold pressure gradient, stress sensitivity, and relative permeability are all considered in our models. …”
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18145
The Application of the Logistic Equation Model to Predict the Remineralization Characteristics of Desensitizing Paste
Published 2019-01-01“…Objectives. A mathematical model making using of the Verhulst logistic equation was developed to predict the remineralization behaviors of desensitizing paste. …”
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18146
Synthetic Indicator’s Evaluation of the tuberculosis program. Health Areas I and II. Cienfuegos 2013
Published 2018-08-01“…Percentage and incidence rate were used as a Mathematical measures for the quantitative data analysis.…”
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18147
Study on Evaluation Theory of Bridge Damage State and Methodology on Early Warning of Danger
Published 2022-01-01“…According to the evaluation results, combined with mathematical-statistical analysis methods and principal component analysis methods, the methodology on early warning of danger for bridge structures can be realized. …”
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18148
Navier-Stokes: Singularities and Bifurcations
Published 2024-10-01“…This work not only broadens the scope of traditional mathematical analysis of the Navier-Stokes equations but also establishes a robust theoretical framework for the investigation of bifurcations and regularity in advanced functional spaces, fostering a deeper understanding of global regularity phenomena and the complex dynamics governing fluid systems. …”
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18149
The Spectrophotometric Multicomponent Analysis of a Ternary Mixture of Ibuprofen, Caffeine and Paracetamol by the Combination of Double Divisor-Ratio Spectra Derivative and H-Point...
Published 2012-01-01“…The concentrations of PAR and CAF compounds in their mixture are determined by using their respective standard addition graphs which are obtained by measuring the amplitude at either the maximum or minimum wavelengths selected. The mathematical explanation of the procedure is illustrated. …”
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18150
Comparison of different models to describe the lactation curve of Holstein cows in a small-scale dairy system
Published 2025-02-01“…Modeling lactation curves with mathematical equations is useful to describe and predict the productivity of dairy cows. …”
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18151
Computer visual syndrome: a need to overcome in primary health care
Published 2024-11-01“…Theoretical methods were used: historical-logical, analytical-synthetic, inductive-deductive, and modeling; empirical ones: analysis of documents, observation, survey, expert criteria; and mathematic-statistics for the analysis of the data found. …”
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18152
Decoupling microbial iron reduction from anoxic microsite formation in oxic sediments: a microscale investigation through microfluidic models
Published 2025-01-01“…Our results suggest that microbially mediated Fe-reduction could be more widespread in oxic subsurface environments than previously assumed. Moreover, our mathematical modeling of oxygen dynamics around biomass-rich layers revealed that the onset of anoxia is mainly controlled by biomass spatial organization rather than the conventionally used water saturation index. …”
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18153
Prediction and design optimization of mechanical properties for rubber fertilizer hose reinforced with helically wrapped nylon
Published 2024-06-01“…First, a finite element simulation model and a mathematical model were established to analyze the influence of fiber layer arrangement on the maximum shear strain on the coaxial surface (MSS) and the reaction force on the extrusion roller (RF). …”
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18154
Functional design of organizational structures in project management
Published 2024-06-01“…Initial data volume for organizational design and parallels between organizational structures of a company in general and a project in particular have been given. A mathematical scheme of the projected organizational structure functional distribution has been proposed considering a five-stage approach in tracing functions. …”
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18155
Study on Spatial Temporal Distribution Characteristics of Air Quality Index in Beijing and Its Correlation with Local Meteorological Conditions
Published 2019-01-01“…In order to explore the correlation between air quality and meteorological condition in Beijing from 2014 to 2017, researchers processed 52165 sample data from 35 air monitor stations by means of R statistical software, analyzed the spatial temporal distribution characteristics of air quality index (AQI) with Kriging and mathematical statistics and did the research on correlation between spatial temporal distribution characteristics of AQI and meteorological condition. …”
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18156
Intuitionistic Fuzzy Possibilistic C Means Clustering Algorithms
Published 2015-01-01“…Intuitionistic fuzzy sets (IFSs) provide mathematical framework based on fuzzy sets to describe vagueness in data. …”
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18157
Advanced load balancing techniques using MIMO fuzzy logic: A panel distribution case study at state polytechnic of Malang
Published 2025-06-01“…. • The Sugeno method was selected due to its utilization of a constant mathematical function. This approach offers the benefit of straightforward computation, which can enhance the system's speed and efficiency. • The results showed that the initial load imbalance was 30.86 %, reduced to 5.59 % after the application of load balancing, this is following the IEEE std 446–1995 which allows the maximum load imbalance percentage to be 5–20 %.…”
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18158
Grid Connected Solar PV System with SEPIC Converter Compared with Parallel Boost Converter Based MPPT
Published 2014-01-01“…Also this model is based on mathematical equations and is described through an equivalent circuit including a PV source with MPPT, a diode, a series resistor, a shunt resistor, and dual boost converter with active snubber circuit. …”
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18159
Results of novel theoretical approaches show a possible underestimation of building materials contribution to indoor radon levels
Published 2025-02-01“…Abstract The mathematical modelling represents one of the main possibilities to assess the radon gas coming out from building structures in a dwelling, especially in preventive strategies. …”
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18160
In the Search of Fundamental Inner Bond Strength of Solid Elements
Published 2014-01-01“…Therefore, in order to study the effect of the nature of metallic bond on their physico-chemical properties, we first tried to investigate and introduce a mathematical model for transforming the bulk molar cohesion energy into microscopic bond strengths between atoms. …”
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