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Utilization of m-Phenylenediamine-Furfural Resin for Removal of Cu(II) from Aqueous Solution-A Thermodynamic Study
Published 2010-01-01“…On the other hand, the values of activation energy (Ea) were inconsistent with the values of ∆H° both are positive and lie in the range of physisorption. The entropy ∆S° of the process was positive indicative of the randomness of the Cu(II) ions at the solid / liquid interface. …”
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1202
Two-dimensional pseudo-random coupled map lattices system based on partitioned elementary cellular automata and its dynamic properties
Published 2022-01-01“…To solve the weak chaos in the spatiotemporal chaotic system based on coupled map lattices under some control parameters and the un-uniformity of sequences generated by the coupled map lattices, a two-dimensional pseudo-random coupled map lattices (2D-PRCML) system was proposed.Firstly, the two-dimensional partitioned elementary cellular automata (2D-PECA) was designed to establish pseudo-random coupling.Secondly, iterative results of 2D-PECA were utilized to perturb the 2D-PRCML system.The chaotic behaviors of the proposed system, such as the bifurcation diagram, Kolmogorov-Sinai entropy, were investigated.Moreover, the uniformity of sequences generated by the 2D-PRCML system was discussed, and the correlation coefficients between any two sequences generated by different lattices were acquired.The analyses and tests indicate that the 2D-PRCML system exhibits stronger chaotic behavior.Furthermore, the sequence generated by the proposed system possesses better uniformity, randomness, and unpredictability.The outstanding properties of the 2D-PRCML system prove that it is more suitable for applying in cryptography and chaotic secure communication.…”
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1203
Measuring and utilizing temporal network dissimilarity
Published 2025-01-01“…This work proposes a temporal dissimilarity measure for temporal network comparison based on the first arrival distance distribution and spectral entropy based Jensen-Shannon divergence. Experimental results on both synthetic and empirical temporal networks show that the proposed measure could discriminate diverse temporal networks with different structures by capturing various topological and temporal properties. …”
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1204
Rolling Bearing Fault Diagnosis Method Based on MCMF and SAIMFE
Published 2022-01-01“…In order to improve diagnosis accuracy of bearing fault, a rolling bearing fault diagnosis method based on multiscale combined morphological filter (MCMF) and self-adaption improved multiscale fuzzy entropy (SAIMFE) is proposed in this paper. First, the MCMF is designed to eliminate noise and preserve fault information more effectively. …”
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1205
The diversity of local political agendas during COVID-19: A comparison of Mexican states
Published 2023-05-01“…A quantitative methodology based on the estimation of Shannon’s entropy index and non-parametric tests is used. Contrary to expectations, we find that the scope and diversity of the responses are not significantly related to the factors proposed in the literature. …”
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1206
First Principle Study of Structural, Electronic, Optical, and Thermodynamic Properties of Scandium-Doped Zirconia Zr1−xScxO2,x=0.125
Published 2024-01-01“…The result of thermodynamic properties calculations show that doping scandium in zirconia enhances its entropy and specific heat capacity thereby allowing it to be thermodynamically stable for a wide range of electronic applications.…”
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1207
Phosphate Adsorption onto Chitosan-Based Hydrogel Microspheres
Published 2014-07-01“…The values of ΔG and ΔH demonstrated the spontaneous and exothermic nature of the reaction and the negative value of ΔS indicates a decrease in entropy.…”
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1208
A novel lossless encoding algorithm for data compression–genomics data as an exemplar
Published 2025-01-01“…This approach is different than the currently known approaches: entropy, dictionary, predictive, or transform-based methods. …”
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1209
An Enhanced -Means Clustering Algorithm for Pattern Discovery in Healthcare Data
Published 2015-06-01“…Our experimental results, which were used in an increasing manner on the same dataset, show that G -means outperforms k -means in terms of entropy and F -scores. The experiments also yield better results for G -means in terms of the coefficient of variance and the execution time.…”
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1210
Feature Frequency Extraction Algorithm based on PCA and MK-MOMEDA and Its Application
Published 2020-12-01“…Aiming at the problem of extracting characteristic frequency of flexible thin-walled bearings,a feature frequency extraction algorithm combining principal component analysis (PCA) and multi-point optimally adjusted minimum entropy deconvolution (MOMEDA) is proposed. In the algorithm,PCA is used to perform noise reduction processing on the original signal to obtain a reconstructed signal. …”
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1211
River health assessment based on set pair analysis model in typical Northern Chinese City
Published 2025-01-01“…The key environmental factors influencing these communities included pH, dissolved oxygen, ammonium nitrogen, total phosphorus, and altitude. Using an entropy-weighted set pair analysis model, spatial variations in river ecosystem health were evaluated. …”
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1212
An Analysis of Transverse Momentum Spectra of Various Jets Produced in High Energy Collisions
Published 2021-01-01“…The related parameters such as the entropy index-related, effective temperature, and revised index are then obtained. …”
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1213
Analysis and Control of Fractional Order Generalized Lorenz Chaotic System by Using Finite Time Synchronization
Published 2019-01-01“…The complexity of fractional order chaotic system is given by spectral entropy algorithm and C0 algorithm. We concluded that the fractional order chaotic system has a higher complexity. …”
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1214
Forecasting long-time dynamics in quantum many-body systems by dynamic mode decomposition
Published 2025-01-01“…Despite the simplicity of the method, the effectiveness and applicability of the DMD in quantum many-body systems such as the Ising model in the transverse field at the critical point are demonstrated, even when the time evolution at long time exhibits complicated features such as a volume-law entanglement entropy and consequential power-law decays of correlations characteristic of systems with long-ranged quantum entanglements unlike fluid dynamics. …”
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1215
Shuffled differential privacy protection method for K-Modes clustering data collection and publication
Published 2024-01-01“…Aiming at the current problem of insufficient security in clustering data collection and publication, in order to protect user privacy and improve data quality in clustering data, a privacy protection method for K-Modes clustering data collection and publication was proposed without trusted third parties based on the shuffled differential privacy model.K-Modes clustering data collection algorithm was used to sample the user data and add noise, and then the initial order of the sampled data was disturbed by filling in the value domain random arrangement publishing algorithm.The malicious attacker couldn’t identify the target user according to the relationship between the user and the data, and then to reduce the interference of noise as much as possible a new centroid was calculated by cyclic iteration to complete the clustering.Finally, the privacy, feasibility and complexity of the above three methods were analyzed from the theoretical level, and the accuracy and entropy of the three real data sets were compared with the authoritative similar algorithms KM, DPLM and LDPKM in recent years to verify the effectiveness of the proposed model.The experimental results show that the privacy protection and data quality of the proposed method are superior to the current similar algorithms.…”
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1216
Optimization of Process Parameters in Electrochemical Micromachining of AMCs by Using Different Techniques of Weight Evaluation
Published 2023-01-01“…., multi-criteria optimization and compromise solution) technique is used for finding the best alternatives based on the distinct weight assessing methods such as equal weights method (EWM), analytic hierarchy process (AHP), and entropy-based weights method (EBWM). Furthermore, a confirmation test is also conducted to find the best optimal parameters and their levels among the EWM-VIKOR, AHP-VIKOR, and EBWM-VIKOR. …”
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1217
Hawking Radiation-Quasinormal Modes Correspondence for Large AdS Black Holes
Published 2017-01-01“…Then we get the formulas of the Bekenstein-Hawking entropy and the horizon’s area quantization with functions of the quantum “overtone” number n.…”
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1218
Online Intelligent Identification of Modal Parameters for Large Cable-Stayed Bridges
Published 2020-01-01“…At the same time, the first derivative of the singular entropy increment is used to automatically determine the order of the system, and then the spectral clustering algorithm is combined with the stochastic subspace algorithm to ultimately reach the goal of automatic identification of modal parameters.…”
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1219
Presenting a Model for Robot evaluation and Ranking by Grey MuLTIMOORA
Published 2022-03-01“…Next criteria weights were calculated by Grey Entropy method. Sellers training, quality of services, are the main important criteria’s and v.s precision and degree of freedom are least important criteria. …”
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1220
Application of Mill Chatter Component Extraction and Root Cause Diagnosis in the Industrial Cold Rolling Mill
Published 2024-01-01“…To meet the early warning of the third-octave mode chatter in the production line, a new adaptive cuckoo search algorithm variational mode decomposition (CSA-VMD) and transfer entropy–based root cause diagnosis models are proposed. …”
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