A ZNN Based Constrained Energy Minimization Algorithm and Its Application

The potential toxic elements (Be, U, As, Cd, Pb, Sb, Bi) were detected for mine landscape of Sherlovaya Gora tin-polymetallic deposit. Thermodynamic calculation of equilibrium for tailings dump pond water was carried out by means of “Selektor” program complex based on Gibbs free energy minimization algorithm at 25°C and 1 bar total pressure. It turned out that the mine water is supersaturated with respect to many sulphates of Ca, Mg, Sr, Zn, K, Cu, Ni, Cd, Be, Al, Ce and Y, fluorides of (Ln and Y, Sc), and Y phosphate.

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Energy minimization algorithm based on Bayesian approach for fault tolerant detection in Wireless Sensor Network

14th International Conference on Sciences and Techniques of Automatic Control & Computer Engineering - STA'2013 ◽

10.1109/sta.2013.6783137 ◽

2013 ◽

Cited By ~ 1

Author(s):

Sourour Trab ◽

Boumedyen Boussaid ◽

Ahmed Zouinkhi ◽

M. Naceur Abdelkrim

Keyword(s):

Wireless Sensor Network ◽

Sensor Network ◽

Bayesian Approach ◽

Energy Minimization ◽

Fault Tolerant ◽

Wireless Sensor ◽

Minimization Algorithm

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An energy minimization algorithm based on distributed dynamic clustering for long term evolution (LTE) heterogeneous networks

Science China Information Sciences ◽

10.1007/s11432-014-5261-y ◽

2015 ◽

Vol 58 (4) ◽

pp. 1-12 ◽

Cited By ~ 7

Author(s):

En Tong ◽

Fei Ding ◽

ZhiWen Pan ◽

XiaoHu You

Keyword(s):

Heterogeneous Networks ◽

Energy Minimization ◽

Long Term Evolution ◽

Dynamic Clustering ◽

Minimization Algorithm ◽

Term Evolution

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Implementation of graph-based interactive 3D vessel segmentation filter

The Insight Journal ◽

10.54294/prb8yw ◽

2010 ◽

Author(s):

David Pellow ◽

Mot Freiman ◽

Leo Joskowicz

Keyword(s):

Shortest Path ◽

Energy Minimization ◽

Weighting Function ◽

Minimization Algorithm ◽

Spatial Constraint ◽

Intensity Information ◽

Path Computation ◽

Interactive 3D ◽

Shortest Path Computation ◽

Min Cut

This paper describes an ITK implementation of a 3D vascular segmentation filter using a graph-based energy minimization algorithm. The method first computes the shortest path between two user provided points in the vessel and then performs a graph min-cut based segmentation of the vessel based on the intensity information coupled with the computed path as a spatial constraint. The shortest path computation is adapted from the algorithm in [1] to use a vesselness based weighting function. The min-cut algorithm uses the Boost graph library to calculate the minimal cut. Several examples of applications are provided, along with images of the resulting segmentations.

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Direct Energy Minimization Algorithm for Numerical Simulation of Carbon Dioxide Injection

10.2118/206611-ms ◽

2021 ◽

Author(s):

Lyudmila Khakimova ◽

Anna Isaeva ◽

Vladimir Dobrozhanskiy ◽

Yury Podladchikov

Keyword(s):

Carbon Dioxide ◽

Numerical Simulation ◽

Free Energy ◽

Phase Equilibria ◽

Energy Minimization ◽

Multicomponent System ◽

Ternary Mixtures ◽

Minimization Algorithm ◽

Carbon Dioxide Injection ◽

Three Phase

Abstract We discuss numerical simulation of carbon dioxide injection considered by oil and gas companies. Complex behavior of multicomponent reservoir fluids mixed with carbon dioxide may cause the occurrence of vapor-liquid-liquid equilibria (VLLE), salt precipitation in aquifers, pore-clogging, etc. We propose a simple algorithm for phase equilibria calculations based on the minimization of the multicomponent system free energy. This algorithm can be used to calculate phase separations and component partitioning between the phases under various conditions (critical region, two- and three-phase equilibria, etc.). We demonstrate the applicability of the proposed algorithm in a series of calculations. We consider binary and ternary mixtures that include carbon dioxide and hydrocarbons. We examine the algorithm in two- and three-phase equilibrium calculations and compare its performance with the popular iterative fugacity equilibration technique. We show that both calculation techniques give near-identical results for the considered mixtures. Thus, we show that the free energy minimization algorithm can be used interchangeably with the fugacity equilibration technique for calculating phase equilibria. This algorithm is applicable for VLLE calculations, which is important when considering multicomponent reservoir fluids that include carbon dioxide.

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Adoption of Dynamic Contrast Enhanced Magnetic Resonance Imaging in Qualitative Diagnosis of Solid Breast Mass

Journal of Medical Imaging and Health Informatics ◽

10.1166/jmihi.2020.3152 ◽

2020 ◽

Vol 10 (9) ◽

pp. 2156-2162

Author(s):

Wei Liu ◽

Chuang Sun ◽

Fangbing Zhai ◽

Lei Wang ◽

Jianlin Wu

Keyword(s):

Magnetic Resonance Imaging ◽

Magnetic Resonance ◽

Energy Minimization ◽

Uniform Field ◽

Minimization Algorithm ◽

Resonance Imaging ◽

Dce Mri ◽

Contrast Enhanced ◽

Homomorphic Filtering ◽

Malignant Breast

To investigate the effect of multiphase dynamic contrast enhanced magnetic resonance imaging (DCE-MRI) and diffusion weighted imaging (DWI) in the diagnosis of breast tumor, this study was conducted on 60 patients with breast solid mass disease confirmed by pathology in xxx hospital from January 2016 to December 2018. Based on magnetic resonance imaging (MRI) examination images of patients, the application effects of homomorphic filtering algorithm, non-parametric algorithm and the energy minimization algorithm based on homomorphic filtering proposed in this study were compared in the non-uniform field correction of MRI images. Morphology, time-intensity curve (TIC) curve typing based on DCE-MRI, apparent diffusion coefficient (ADC) value based on diffusion-weighted imaging (DWI) and the combination of three methods were compared in the diagnosis of benign and malignant breast lesions The results showed that the energy minimization algorithm based on homomorphic filtering proposed in this study can effectively improve the non-uniformity in MRI images, and the coefficient of variation was 0.82. The sensitivity of different single and combined methods to the diagnosis of lesion location was 90.91%, 86.36%, 90.91% and 97.73%, respectively. Comparison of Kappa consistency with pathological diagnosis revealed that k values were 0.53 (consistent), 0.59 (consistent), 0.74 (consistent) and 0.85 (consistent), respectively, which indicated that the energy minimization algorithm based on homomorphic filtering could be applied to the non-uniform field correction of MRI images, and the combined diagnosis of morphology, DCE-MRI and DWI could effectively improve the diagnostic accuracy of benign and malignant breast masses.

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