Evaluation of Biocoagulant “Opuntia ficus-indica and Chitosan” to Improve the Removal of Contaminants in Dairy Effluents through Electrocoagulation by Naysha Y. M. Elguera, Stephanie E. S. Pulcha, Edgar M. M. Ballon, Miriam R. F. Castro, Lilia M. M. Ramos, Victor L. A. Tohalino, Pavel K. D. Sarmiento, Vitor C. Almeida, Hugo G. J. Pacheco

“…Additionally, using the Box–Behnken mathematical model for the removal of TB and COD, the effects and interactions of the factors and experimental design levels (considering control formulations using triplicates) were evaluated. …”
Get full text

Contribution to the Detection of Poor Quality Sildenafil Drugs in Burkina Faso Using High-Performance Thin-Layer Chromatography by Abdoul Karim Sakira, Mitéhélé Sandrine Marie Josiane Ouattara, Moussa Yabre, Moumouni Bande, Touridomon Issa Some

“…The establishment of the response function curves allowed the choice of the polynomial function applied to the peak areas. This mathematical model provides a validity range between 0.4 and 0.6 mg/mL. …”
Get full text

Numerical Simulation of Channelization Near the Wellbore due to Seepage Erosion in Unconsolidated Sands during Fluid Injection by Jin Sun, Shiguo Wu, Jingen Deng, Qingping Li, Qi Fan, Linwei Ma, Yanrui Liu

“…Based on the continuum mechanics, a mathematical model has been established to simulate the formation process of big channels in unconsolidated sands reservoir during fluid injection. …”
Get full text

Modeling Ebola Virus Disease transmissions with reservoir in a complex virus life ecology by Tsanou Berge, Samuel Bowong, Jean Lubuma, Martin Luther Mann Manyombe

“…We propose a new deterministic mathematical model for the transmission dynamics of Ebola Virus Disease (EVD) in a complex Ebola virus life ecology. …”
Get full text

A Model of ESG-Transparency Index in Corporate Reporting by R. P. Bulyga, M. V. Melnik, I. V. Safonova, V. B. Gisin

“…Current "transparency indices" fall short in incorporating these factors, leading to methodological incomparability and gaps in assessing the "quality" and "reliability" of estimated values.To address this gap, the authors propose a novel mathematical model for the ESG transparency index in corporate reporting. …”
Get full text

Reagent efficiency and analytical sensitivity optimization for a reliable SARS-CoV-2 pool-based testing strategy by José P. Miranda, Javiera Osorio, Marcia Silva, Carola Silva, Victoria Madrid, Rossana Camponovo, Marcela Henríquez-Henríquez

“…Methods: We developed a mathematical model to determine the pooling conditions that maximize reagent efficiency and analytical sensitivity. …”
Get full text

Impact of nanoparticles shapes and fuzzy volume fraction on Al2O3 – H2O nanofluid flow past an unsteady expandable surface by Adnan Saeed Butt, Naveed Yaqoob, Sameea Akbar, Gul M. Shaikh, Adeeba Farhat, Fouzia Amir, Mohamed R. Ali

“…To accomplish this, a comprehensive mathematical model is developed, integrating the Navier-Stokes and energy equations to characterize nanofluid flow over an extending surface and examine nanoparticle shape effects. …”
Get full text

Modelling the Transmission Dynamics of Meningitis among High and Low-Risk People in Ghana with Cost-Effectiveness Analysis by Nicholas Kwasi-Do Ohene Opoku, Reindorf Nartey Borkor, Andrews Frimpong Adu, Hannah Nyarkoah Nyarko, Albert Doughan, Edwin Moses Appiah, Biigba Yakubu, Isabel Mensah, Samson Pandam Salifu

“…Thus, this article develops a mathematical model that ascertains the dynamics involved in meningitis transmissions by partitioning individuals into low- and high-risk susceptible groups. …”
Get full text

Solving geocryology problems based on generalized Fourier theory for temperature waves in half-space by Anatoliy M. Afanasyev, Yulia S. Bakhracheva

“…Lykov’s theory, a spatially one-dimensional mathematical model of the processes of heat and moisture propagation in a homogeneous half-space, the boundary of which is in a state of heat and mass exchange with an airless medium, has been developed. …”
Get full text

Vehicle-Mounted Photovoltaic System Energy Management in Intelligent Transportation Systems: A Maximum Power Point Tracking Control by Jingao Wang, Qifei Liu, Silan Jing

“…The maximum power point (MPP) is solved directly by the mathematical method based on the mathematical model of I-U relation mathematics, and the DC-DC circuit is used to adjust the running point to MPP. …”
Get full text

Numerical Simulation of Gas–Liquid–Solid Three-Phase Erosion in a Gas Storage Tank Tee by Zongxiao Ren, Chenyu Zhang, Zhaoyang Fan, Yanfei Ren

“…In accordance with the principles of the multiphase flow theory, the particle discrete phase model, high temperature, high pressure, water volume fraction, and other pertinent factors, this paper presents a three-phase gas–liquid–solid erosion mathematical model of a three-way gas storage reservoir. …”
Get full text

PREDICTING THE LEARNING PATH TO LEARNER’S OPTIMUM COMPREHENSION by Ifeanyi Isaiah Achi, Chukwuemeka Odi Agwu, Christopher Chizoba Nnamene, Sylvester C. Aniobi, Ifebude Barnabas C., Kelechi Christian Oketa, Godson Kenechukwu Ezeh, John Otozi Ugah

“…Hence, this research paper focuses on deriving an improved mathematical model for predicting the learning path to a learner’s optimum comprehension. …”
Get full text

Determination of power loss in compressor stage of turbogenerator in dynamic experiments by D. А. Kalashnikov, А. S. Pugachuk, E. О. Chudotvorova, A. V. Chernyshev

“…A mathematical model for the interaction of a gas environment with the surfaces of the impeller of turbogenerator compressor is developed. …”
Get full text

ASSESSING THE RESULTS OF TRAINING IN DIGITAL ENTREPRENEURSHIP IN THE AGE OF HIGH AND DEEP TECH by Oleg Kaminsky, Julia Yereshko, Sergii Kyrychenko, Maryna Duchenko

“…Special considerations for using the model for higher education institutions are discussed. The proposed mathematical model has the property of universality and can be applied to obtain basic statistical samples of the level of competence acquisition based on online courses in various areas of the real sector of the economy. …”
Get full text

Coverage Probability and Area Spectral Efficiency of Full Duplex Communication in C-V2X Network With Dual Connectivity by Adeel Ahmad, Muhammad Nadeem Sial, Junaid Ahmed, Sadiq Ullah

“…We have derived mathematical model for success probability of FD for C-V2X network and formulated expressions for area spectral efficiency (ASE). …”
Get full text

Prediction of Heavy Oil Production Based on Geomechanical Analysis in Entire Lifecycle of SAGD by Dengke Li, Shaowen Zhu, Yanchao Li, Shijie Shen, Zupeng Chen, Zhanli Ren, Yuxuan Zhou, Yanfang Gao

“…In this paper, a new mathematical model of crude oil production‐geomechanical coupling was established for three stages of the SAGD life cycle (steam chamber breakthrough stage, rising stage, and lateral dilation stage). …”
Get full text

An Efficient and Accurate Adaptive Time-Stepping Method for the Landau–Lifshitz Equation by Hyundong Kim, Soobin Kwak, Moumni Mohammed, Seungyoon Kang, Seokjun Ham, Junseok Kim

“…This article presents an efficient and accurate adaptive time-stepping finite difference method (FDM) for solving the Landau–Lifshitz (LL) equation, which is an important mathematical model in understanding magnetic materials and processes. …”
Get full text

Spline approximation of multivalued functions in linear structures routing by D. A. Karpov, V. I. Struchenkov

“…At the first stage, a novel mathematical model is developed to apply the dynamic programming method taking into account the constraints on the desired spline parameters. …”
Get full text

Cloud Platform Selection Model in the Framework of Differential Quality Game With Fuzzy Information by Kaiyrbek Makulov, Arkadii A. Chikrii, Valery Lakhno, Bagdat Yagaliyeva, Volodimir Malyukov, Inna Malyukova, Miroslav Lakhno

“…The paper presents a mathematical model integrated into the computational core of a decision support system (DSS) for the selection of cloud platforms under conditions of fuzzy information. …”
Get full text

The Effect of Interlayer on Water Cut Rise in a Bottom Water Reservoir by Yunpeng Hu, Xiaoling Zhang, Wei Ding, Ziyun Cheng, Liangchao Qu, Penghui Su, Chunliu Sun, Wenqi Zhang

“…In this paper, the mathematical model of two-phase flow in the bottom water reservoir with the interlayer is proposed, and the numerical solution of the model is obtained by a finite element method. …”
Get full text