Research on the Supernetwork Equalization Model of Multilayer Attributive Regional Logistics Integration by Jian Xu, Yanna Yin, Xin Wen, Guozhi Lin

“…We built a supernetwork mathematical model of regional logistics integration with multiple layers of attributes. …”
Get full text

On the problems of monitoring the shadow economy by E. V. Baturina

“…The article presents the main provisions of the author’s Concept of monitoring the shadow economy through the economic and mathematical analysis of the shadow cashless cash flow. …”
Get full text

Probability of Local Liquefaction of Saturated Sands in Half-Space Domains under a Train of Surface Point Explosions by Luis A. de Béjar

“…The load effect is evaluated in approximate closed form using three-dimensional tensorial mathematical physics in polar cylindrical coordinates. …”
Get full text

An Improved Hierarchical Genetic Algorithm for Sheet Cutting Scheduling with Process Constraints by Yunqing Rao, Dezhong Qi, Jinling Li

“…The objective of the cutting scheduling problem is minimizing the weighted completed time. A mathematical model for this problem is presented, an improved hierarchical genetic algorithm (ant colony—hierarchical genetic algorithm) is developed for better solution, and a hierarchical coding method is used based on the characteristics of the problem. …”
Get full text

Group Decision-Making Approach without Weighted Aggregation Operators by Min Jiang, Zhiqing Meng, Rui Shen

“…This approach is more suitable for scenarios with infinite number of individuals. A mathematical model approach is established based on the new concept of s⁎-optimal concession equilibrium solution without weighted aggregation operators for group decision-making problems. …”
Get full text

Bearing Fault Signal Analysis Based on an Adaptive Multiscale Combined Morphological Filter by Chun Lv, Peilin Zhang, Dinghai Wu, Bing Li, Yunqiang Zhang

“…To effectively eliminate noise in a fault signal, an adaptive multiscale combined morphological filter is proposed based on the theory of mathematical morphology. Both simulation and experimental results show that the adaptive multiscale combined morphological filter can remove noise more thoroughly and retain details of the fault signal better than the dual-tree complex wavelet filter, traditional morphological filter, adaptive singular value decomposition method (ASVD), and improved switching Kalman filter (ISKF). …”
Get full text

Thermal Performance Analysis of Dry Unit of Hybrid Closed Cooling Tower by Ilnur Madyshev, Vitaly Kharkov, Marsel Vakhitov, Maxim Kuznetsov

“…Therefore, this study aimed to propose a hybrid closed cooling tower (CCT) with a fill unit composed of a finned pipe coil and inclined corrugated plates (ICP). A mathematical model of the hot water cooling process in the proposed cooler, operating in dry mode was developed using the number of heat transfer units (NTU). …”
Get full text

Precision Imaging of Frequency Stepped SAR with Frequency Domain Extracted HRRP and Fast Factorized Back Projection Algorithm by Can-bin Yin, Da Ran

“…Novel frequency domain extracted method (FDEM) to obtain high range resolution profile (HRRP) for frequency stepped synthetic aperture radar (SAR) is proposed in this paper, and the mathematical principle and formulas of this new HRRP obtaining idea combined with classical fast Fourier transform (FFT), chirp z transform (CZT), and single point Fourier transform (SPFT) are deduced, analyzed, and compared in detail. …”
Get full text

Solubility data of deferiprone in propylene glycol and 1-propanol mixtures at 293.2–323.2 K by Homa Rezaei, Elaheh Rahimpour, Abolghasem Jouyban

“…Dependence of solubility on composition and temperature were evaluated by fitting the experimental data to the double log-log, Jouyban-Acree-van't Hoff, modified Wilson and Jouyban-Acree equations, which showed that the latter equation represented the best mathematical description. Additionally, functions including the apparent standard dissolution Gibbs energy (ΔG°), standard dissolution enthalpy (ΔH°) and standard dissolution entropy change (ΔS°) were determined in order to provide basic knowledge on thermodynamics of deferiprone’ crystallization and industrial separation.…”
Get full text

Three-Dimensional Memristive Hindmarsh–Rose Neuron Model with Hidden Coexisting Asymmetric Behaviors by Bocheng Bao, Aihuang Hu, Han Bao, Quan Xu, Mo Chen, Huagan Wu

“…The proposed memristive HR neuron model has no equilibrium point but can show hidden dynamical behaviors of coexisting asymmetric attractors, which has not been reported in the previous references for the HR neuron model. Mathematical model based numerical simulations for hidden coexisting asymmetric attractors are performed by bifurcation analyses, phase portraits, attraction basins, and dynamical maps, which just demonstrate the occurrence of complex dynamical behaviors of electrical activities in neuron with electromagnetic induction. …”
Get full text

Medical Pattern Recognition: Applying an Improved Intuitionistic Fuzzy Cross-Entropy Approach by Kuo-Chen Hung

“…The proposed entropy measure is based on intuitionistic fuzzy sets, extrainformation regarding hesitation degree, and an intuitive and mathematical connection between the notions of entropy in terms of fuzziness and intuitionism has been revealed. …”
Get full text

Three-Dimensional Shock Spectrum of Critical Component for Nonlinear Packaging System by Jun Wang, Zhi-Wei Wang, Li-Xin Lu, Yong Zhu, Yong-Guang Wang

“…Three key coordinate parameters, such as the nondimensional pulse duration, the frequency parameter ratio and the ratio of the maximum response acceleration to the peak pulse acceleration, were governed in a novel dynamical mathematical model. It is shown that the shock response of critical component is weakened owning to the decrease in the defined system parameter. …”
Get full text

Efficient evaluation of member cardinality in cluster-based vehicular cyber-physical systems by Jin Qian, Tao Jing, Yan Huo, Hui Li, Zhen Li

“…Finally, we analyze the proposed method considering the unreliability of the channel state. The mathematical analysis and simulation results demonstrate the performance of the proposed method.…”
Get full text

Evaluation of the effectiveness of the Bank of Russia’s measures to ensure the stability of the stock market in the face of toughening sanctions by A. V. Berdyshev, F. N. Ilmukov

“…Using the suitable mathematical apparatus, with the help of modern tools the authors evaluate the effectiveness of those measures. …”
Get full text

Modeling and Simulation in Engineering Modeling of the Electrocoagulation Processes in Nonisothermal Conditions by Andrii Safonyk, Olena Prysiazhniuk

“…The influence of current strength on the concentration of the target component at the exit from the reactor was investigated using the developed mathematical model. In addition, our findings also show the effect of the rate of heat formation from the electrodes on the efficiency of obtaining of coagulant.…”
Get full text

Exploring the performance of ChatGPT for numerical solution of ordinary differential equations by Saso Koceski, Natasa Koceska, Limonka Koceva Lazarova, Marija Miteva, Biljana Zlatanovska

“…The methodology which is developed in order to conduct this research takes into account the following mathematical abilities (defined according to National Centre for Education Statistics): Conceptual Understanding, Procedural Knowledge, Problem Solving, and Application in Real-world Contexts.  …”
Get full text

Stability Analysis of Pneumatic Cabin Pressure Regulating System with Complex Nonlinear Characteristics by Xinhua Zheng, Lili Xie, Lizhuo Liu

“…Stability of pneumatic cabin pressure regulating system with complex nonlinear characteristics is considered. The mathematical model of each component is obtained and given in detail. …”
Get full text

VECTOR DATA DIFFERENCES IDENTIFICATION IN THE THEMATIC PROCESSING OF SPACE IMAGES by A. A. Zalatoi, A. V. Urbanovich

“…Research and development is done by mathematical modeling of the task in MATLAB. The article provides developed method for solving the task and results of its application for finding differences between two vector data packages, obtained from the target information of remote sensing of the Earth, and/or vector layers of digital district map. …”
Get full text

Clinical Effect of the Treatment of Lumbar Intervertebral Disc Protrusion by Yehui Zhou, Ming Yang

“…This paper combines acupuncture and massage to treat lumbar intervertebral disc protrusion, uses a controlled trial to study the clinical effects of acupuncture combined with massage for the treatment of lumbar intervertebral disc protrusion, combines mathematical statistics to test the data, and compares and analyzes the statistical object parameters. …”
Get full text

Gradient Based Multipath Reliable Transmission Strategy with Fault Tolerance for Wireless Sensor Networks by Hongbing Li, Qingyu Xiong, Weiren Shi, Cheng Zeng, Min Fan

“…It also establishes the transmission mathematical model to analyze the performance of the network. …”
Get full text