Investigation of applicability of Peng–Robinson and GERG-2008 equations of state of real gas for calculating properties of Freons for refrigeration machines and compressors by M. I. Sokolov, Yu. V. Kozhukhov

“…Four Freon parameters are calculated during the study: saturated vapor pressure at the saturation line at some Freon temperature, Freon density at saturation pressure and some temperature, enthalpy and entropy at the same pressures and temperature. The data obtained from the calculation of Freon by the above equations are compared with the experimental data for each of the above Freons. …”
Get full text

Spatial disparities and dynamics in the high quality agricultural development in Heilongjiang Province of China by Jingting Yu, Guanghao Wu

“…We construct a multidimensional evaluation framework with 19 indicators across four dimensions: green agriculture, quality and efficiency improvement of supply, agricultural structural coordination, and shared benefits of development. Using the Entropy Weighted-TOPSIS model, Dagum’s Gini Coefficient, and the Markov chain, the study quantifies the HQAD in Heilongjiang from 2013 to 2022, examining regional disparities and development dynamics. …”
Get full text

A Multiobjective Optimal Operation of a Stand-Alone Microgrid Using SAPSO Algorithm by Guoping Zhang, Weijun Wang, Jie Du, Hua Liu

“…Also, a grey target decision-making theory based on the entropy weight method is proposed to identify the best trade-off scheduling scheme among all the solutions, and the results are compared with those from two other commonly used subjective and objective methods. …”
Get full text

Utility of complexity analysis in electroencephalography and electromyography for automated classification of sleep-wake states in mice by Naoki Furutani, Yuki C. Saito, Yasutaka Niwa, Yu Katsuyama, Yuta Nariya, Mitsuru Kikuchi, Tetsuya Takahashi, Takeshi Sakurai

“…We introduced a novel methodology for sleep stage classification based on two types of complexity analysis, namely multiscale entropy and detrended fluctuation analysis. Our analysis revealed significant variances in these complexities, not only within the specific theta and delta bands but across a wide frequency spectrum. …”
Get full text

A chaotic bursting-spiking transition in a pancreatic beta-cells system: observation of an interior glucose-induced crisis by Jorge Duarte, Cristina Januário, Nuno Martins

“…The analysis of the chaotic interior crisis is complemented by means of topological invariants with the computation of the topological entropy and the maximum Lyapunov exponent. Considering very recent developments in the literature, we construct analytical solutions triggering the bursting-spiking transition in the Deng model. …”
Get full text

Equilibrium study of logistics demand and logistics resource allocation in Guangdong Province by Liu Lianhua, Wu Yanling, Lyu Shiqi, Chen Zexian

“…This paper investigates the regional characteristics of logistics demand and resource allocation in Guangdong Province by analyzing the spatial distribution and evolutionary trends of logistics demand alongside the equilibrium of logistics resource allocation. First, the entropy weight method is utilized to examine the development trends of logistics demand and resource levels in Guangdong Province. …”
Get full text

A New Chaotic Color Image Encryption Algorithm Based on Memristor Model and Random Hybrid Transforms by Yexia Yao, Xuemei Xu, Zhaohui Jiang

“…The encrypted image maintains a stable information entropy around 7.999, with average NPCR and UACI values close to the ideal benchmarks of 99.6169% and 33.4623%, respectively, further affirming its outstanding encryption effectiveness. …”
Get full text

Evaluation of tourism ecological security and its obstacles in semi-arid river valley urban: a case study of Lanzhou, China by Kejun Wu, Mengtao Wu, Zhihai An, Hui Jiao

“…We employed a comprehensive evaluation framework that integrates both qualitative and quantitative methods, including the DPSIR model, mean square deviation, and entropy methods for weight calculation, as well as TOPSIS for overall assessment and coupled coordination degree and obstacle degree models for subsystem analysis. …”
Get full text

Prediction of Multidimensional Poverty Status With Machine Learning Classification at Household Level: Empirical Evidence From Tanzania by Ngong'Ho Bujiku Sende, Snehanshu Saha, Leon Ruganzu, Saibal Kar

“…The study employed data pre-processing techniques and adjusted imbalance through weighted categorical cross entropy and 5-Fold Cross Validation to mitigate the inefficiencies due to overfitting and under-fitting of the algorithms. …”
Get full text

Cortical changes associated with an anterior cruciate ligament injury may retrograde skilled kicking in football: preliminary EEG findings by Daghan Piskin, Gjergji Cobani, Tim Lehmann, Daniel Büchel, Jochen Baumeister

“…Cortical activity was captured with a 64-electrode mobile electroencephalography. Multiscale entropy (MSE) analysis of biomechanics revealed increased variability in foot external rotation among injured players. …”
Get full text

Application of an Improved Ensemble Local Mean Decomposition Method for Gearbox Composite Fault Diagnosis by Zhijian Wang, Junyuan Wang, Wenan Cai, Jie Zhou, Wenhua Du, Jingtai Wang, Gaofeng He, Huihui He

“…The idea is to add white noise in pairs to optimize ELMD, defined as CELMD (Complementary Ensemble Local Mean Decomposition) then remove the decomposed high noise component by PE (Permutation Entropy) while applying the SG (Savitzky-Golay) filter to smooth out the low noise in PFs. …”
Get full text

Differences of active substances in different fruit phenotypes of Lycium ruthenicum Murr. by SHI Cui, KONG Dongsheng, WU Yao, BAO Jingwei

“…[Results] (1) The coefficient of variation of roundness, correlation value and entropy of phenotypic characteristics was small, the difference between individuals was small, and the stability was high. …”
Get full text

Modelling of phase equilibria in the Hf-V system below room temperature by Vřešťál J., Pavlů J., Wdowik U.D., Šob M.

“…With the help of ab initio approach, we demonstrate that the HfV2 orthorhombic phase and C15 Laves phase are mechanically stable at 0 K and thanks to entropy stabilization they are in equilibrium with pure element phases in the temperature region of structural change.…”
Get full text

Self-organization of the stock exchange to the edge of a phase transition: empirical and theoretical studies by Andrey Dmitriev, Andrey Dmitriev, Andrey Lebedev, Vasily Kornilov, Victor Dmitriev

“…In the model, the controlling parameter is entropy as a measure of uncertainty of information about a share of a public company, guided by which stock exchange players make a decision to buy/sell it. …”
Get full text

Vehicle Information Influence Degree Screening Method Based on GEP Optimized RBF Neural Network by Jingfeng Yang, Nanfeng Zhang, Ming Li, Yanwei Zheng, Li Wang, Yong Li, Ji Yang, Yifei Xiang, Lufeng Luo

“…To solve the problem for a large number of data transmissions in an actual operation, wireless transmission is proposed for text information (including position information) on the basis of the principles of the maximum entropy probability and the neural network prediction model combined with the optimization of the Huffman encoding algorithm, from the exchange of data to the entire data extraction process. …”
Get full text

Dust Dynamics in Radially Convective Regions of Protoplanetary Disks by Min-Kai Lin, Marius Lehmann

“…One candidate, convective overstability (COS), can be triggered in regions with a negative radial entropy gradient. The ensuing turbulence and flow structures are expected to affect dust dynamics directly. …”
Get full text

Multi-modal feature fusion with multi-head self-attention for epileptic EEG signals by Ning Huang, Zhengtao Xi, Yingying Jiao, Yudong Zhang, Zhuqing Jiao, Xiaona Li

“…First, the time domain features were extracted by kernel principal component analysis, the frequency domain features were extracted by short-time Fourier extracted transform, and the nonlinear dynamic features were extracted by calculating sample entropy. On this basis, the features of these three modalities were interactively learned through the multi-head self-attention mechanism, and the attention weights were trained simultaneously. …”
Get full text

Risk Assessment of Distracted Driving Behavior Based on Visual Stability Coefficient by Haixiao Wang, Xu Ding, Chutong Wang

“…Firstly, four visual characteristics indicators that were highly sensitive to traffic conditions and driving states were selected in terms of visual field range, visual recognition, visual search, and visual load, which were the information entropy of fixation area (IEFA), saccade amplitude, peak-to-average ratio of saccade velocity (PARSV), and relative change intensity of pupil area (RCPA). …”
Get full text

Prioritizing implementation solutions for the urban family physician policy in Iran: a multi-criteria decision-making study by Lida Shams, Mohammadreza Mobinizadeh, Taha Nasiri, Fatemeh Mohammadi

“…In the second stage, the extracted executive solutions were ranked using multi-criteria decision-making (MADM) and a hybrid approach combining Shannon entropy with simple aggregation weighting (SAW). Results Main themes were identified, including financing, management, human resources, structure, culture building, payment mechanism information systems, monitoring & control, performance of insurance organisations, and implementation. …”
Get full text

Metabolic control and its associated factors in type 1 diabetic people: longitudinal trajectory modeling by Zahra Khosravi, Ali Taghipour, Monavar Afzalaghaee, Habibollah Esmaily, Ahmad Khosravi

“…Results The results showed four trajectories of safe controlled (46.2%), moderate stable risk (28.7%), moderate increasing risk (12.5%), and high decreasing risk trajectory (12.6%) (entropy = 0.70). The results of multinomial logistic regression showed dyslipidemia could increase the odds of being in the three risk trajectories. …”
Get full text