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821
Parametric Survival Models of Hemodialysis Patients in Relation with Patient-Related Factors
Published 2020-12-01“…Based on the Cox-Snell Residuals and AIC, BIC, and Gompertz (PH) model is an efficient model than other when the values of (AIC=662.21), (BIC=703.83) and (R2=0.211) where maintained Study assessed that the variables dealing with univariate models were signifi cant but had a signifi cant effect on hemodialysis survival. …”
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822
On practical aspects of optimal modelling in boundary element method
Published 2001-01-01“…Since the optimal discretization theory derived for the function of one variable, then only the 2D problem is considered. …”
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823
Economic and environmental power dispatch for energy management systems applied to microgrids with wind energy resources and battery energy storage systems
Published 2025-09-01“…These algorithms are integrated into the objective functions and evaluated using a 24-hour power flow that incorporates a strict penalty scheme to satisfy the operational constraints. …”
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824
The Relationship Between Biometric Features of Trees and the Intensity of Birch Sap Leakage in Various Forest Sites
Published 2025-04-01“…Research on the utility value of birch sap and the influence of a number of factors on its efficiency and quality has been carried out in many research centers, but so far, there are not many studies on the variability of such parameters as a function of time, taking into account the entire period of sap leakage. …”
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825
Swarm Intelligence Integrated Graph-Cut for Liver Segmentation from 3D-CT Volumes
Published 2015-01-01“…The paper proposes a swarm intelligence inspired edge-adaptive weight function for regulating the energy minimization of the traditional graph-cut model. …”
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826
Structure–property models of organic compounds based on molecular graphs with elements of the spatial structures of the molecules
Published 2021-01-01“…First, it is assumed that the required structure–property equation has a definite form and depends on several adjusted numerical parameters and two changeable functions of one variable. In this step, from some set of functions, the pair of functions that provide the best model is selected. …”
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827
Investigating the relationship between the monetary policy shock through the exchange rate channel on the management quality index in the banking system: by examining the productiv...
Published 2025-03-01“…In a study, Sanbat (2016) has investigated monetary policy transmission channels in the United States using the FAVAR model and 154 monthly time series variables in the time period from 1970 to 2014. To this end, the effect of monetary policy shock on bank portfolio variables and economic activity variables and the effect of lending on economic activity variables have been investigated. …”
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828
Surface Defect Detection for Small Samples of Particleboard Based on Improved Proximal Policy Optimization
Published 2025-04-01“…The method integrates the variable action space and the composite reward function and achieves the balanced optimization of different types of defect detection performance by adjusting the scaling and translation amplitude of the detection region. …”
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829
Modeling and optimizing the atmospheric water harvesting System: Application of PAN-PDMS polymeric membrane
Published 2025-07-01“…The water production rate and the total annual cost rate were considered as two objective functions. Also, five design variables are selected after considering their effects on the objective functions. …”
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830
Design of an Automatic Defect Identification Method Based ECPT for Pneumatic Pressure Equipment
Published 2018-01-01“…The presented feature extraction algorithm contains four elements: data block selection; variable step search; relation value classification; and between-class distance decision function. …”
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831
Neural Network-Based Design of a Buck Zero-Voltage-Switching Quasi-Resonant DC–DC Converter
Published 2024-10-01“…The converter is a piecewise linear system mathematically described by Kirchhoff’s laws and represented through switching functions. In this way, a mathematical model is used to generate data on the behavior of the state variables obtained under various design parameters. …”
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832
Enhanced Stability and Control of Solar Powered EV Charging Stations Using Disturbance Observer-Based Adaptive Sliding Mode Control for DC Voltage Stabilization
Published 2024-01-01“…To address the chattering issue, a barrier function based SMC (BFSMC) approach is proposed. The distinctive aspects of this BFSM control approach is its capability to stabilize the designed sliding variable to a predefined neighbourhood around the origin within a limited duration, eliminating the need for prior understanding of the maximum limit of the lumped disturbance. …”
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833
Coordination of technology of railway operation of the Republic of Tajikistan and organization of railways in international traffic
Published 2018-08-01“…Proposed classification of technological restrictions and controlled variables in the performance of transport takes into account methods for changing external conditions for the functioning of the railway landfill and methods for increasing internal efficiency of its operation. …”
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834
Gut health modulation through phytogenics in poultry: mechanisms, benefits, and applications
Published 2025-08-01“…These plant-derived compounds, such as polyphenols, alkaloids, flavonoids, and essential oils exhibit various bioactive properties that improve gut microbiota composition, support immune function, and improve nutrient absorption by influencing gut morphology and digestive enzyme activity. …”
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835
Dynamic Gesture Recognition Algorithm Combining Global Gesture Motion and Local Finger Motion for Interactive Teaching
Published 2024-01-01“…Adding dynamic gesture recognition to the new interactive teaching system is of great significance to improve the teaching efficiency. However, the features extracted by traditional dynamic gesture recognition methods are usually difficult to accurately represent the differences between dynamic gestures. …”
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836
Fisher Information-Based Optimization of Mapped Fourier Grid Methods
Published 2024-10-01“…The mapped Fourier grid method (mapped-FGM) is a simple and efficient discrete variable representation (DVR) numerical technique for solving atomic radial Schrödinger differential equations. …”
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837
Feasibility Assessment of Novel Multi-Mode Camshaft Design Through Modal Analysis
Published 2025-05-01“…Camshafts in internal combustion engines are critical components not only for mechanical functionality but also for dynamic performance and vibration characteristics. …”
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838
Sparse Learning of the Disease Severity Score for High-Dimensional Data
Published 2017-01-01“…This problem is solved by addressing a dual formulation which is smooth and allows an efficient optimization. The proposed approach might be used as an effective and reliable tool for both scoring function learning and biomarker discovery, as demonstrated by identifying a stable set of genes related to influenza symptoms’ severity, which are enriched in immune-related processes.…”
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839
Stability and vibration analyses of tapered columns resting on one or two-parameter elastic foundations
Published 2014-12-01“…This paper presents a generalized numerical method to evaluate element stiffness matrices needed for the free vibration and stability analyses of non-prismatic columns resting on one- or two-parameter elastic foundations and subjected to variable axial load. For this purpose, power series approximation is used to solve the fourth–order differential equation of non-prismatic columns with variable geometric parameters. …”
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840
Multi-period optimisation of flexible natural gas production network infrastructure with an operational perspective: A mixed integer linear programming approach
Published 2024-10-01“…Notably, the case considering fixed and operating cost variables together as a single cost variable in the objective function, referred to as annualised cost (case C), offered optimal cost quantification with relaxed technical constraints. …”
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