Dynamic characteristics and safe operation speed threshold of metro train passing through curved bridge considering resilient wheel by Yuexing Wu, Qianhua Pu, Zhaowei Chen, Xinmin Hong, Xinzhong Wang

“…Based on the train–track–bridge interaction theory, the coupled dynamic model of metro train-CB considering resilient wheels is established. …”
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Aspects of Improvement in Exploitation Process of Passenger Means of Transport by Marian Brzeziński, Magdalena Kijek, Paulina Owczarek, Katarzyna Głodowska, Jarosław Zelkowski, Piotr Bartosiak

“…The main objective of the study is to analyze and evaluate the system of exploitation of passenger transport means and to propose solutions for its improvement. On the basis of the theory of exploitation systems, quantitative utilitarian models have been built, which have been verified by applications using data obtained from Municipal Communication Company (MPK) in Wroclaw. …”
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Initial validation of the powered mobility device autonomy residential screen (PoMoDARS) by Natalie C. Dickson, Apeksha R. Gohil, Carolyn A. Unsworth

“…The PoMoDARS is context specific, time efficient and promotes resident autonomy and safety.Aims To (i) undertake initial face and content validation of the PoMoDARS, and (ii) use the research findings to make any modifications.Methods A mixed-methods study design, underpinned by Classical Test Theory. Eight clinicians completed 20 PoMoDARS screens and provided both quantitative and qualitative feedback on item importance and ease of use within a formal interview.Results Initial face and content validity of the PoMoDARS were supported, with small modifications made to item descriptors and instructions.Conclusions The PoMoDARS has been developed for use in residential aged care settings to screen resident PMD use. …”
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Fractal analysis and microstructure development PVDF based multifunctional material by Peleš-Tadić Adriana, Vuković George, Kojović Aleksandar, Stojanović Dušica, Vlahović Branislav, Obradović Nina, Pavlović Vladimir

“…Fractal analysis has been performed by using scanning electron microscope micrographs and computational modeling tools. Theory of Iterated Function Systems and Voronoi tessellation, have been used for modeling PVDF porous structures. …”
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A Multiregion Discrete-Time Epidemic Model of Mycobacterium tuberculosis Infections: An Optimal Control Approach by Rachid Bouajaji, Hassan Laarabi, Mostafa Rachik, Abdelhadi Abta

“…Firstly, we analyze the epidemic model when the control strategy is based on the vaccination control only, and secondly, when the travel-blocking control is added, we finish with the introduction of the treatment control. The optimal control theory, based on Pontryagin’s maximum principle, is applied thrice in this paper, for the characterizations of the vaccination, travel-blocking, and treatment controls. …”
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Stabilization by feedback control of a novel stochastic chaotic finance model with time-varying fractional derivatives by Seyfeddine Moualkia, Yang Liu, Jinde Cao

“…Compared to the existing CFMs, the present study proposes a novel type of nonlinear controller for the stabilization of the fractional stochastic CFM, providing a substantial analysis based on the HUS theory and computer simulation results to verify the rapid convergence of the state variables to the origin.…”
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Wolbachia infection in populations of the coniferous forest pest Dendrolimus superans sibiricus Tschetverikov, 1908 (Lepidoptera: Lasiocampidae) by M. A. Yudina, V. V. Dubatolov, R. A. Bykov, Yu. Yu. Ilinsky

“…This symbiont has an ability to affect biology of its host. In theory, Wolbachia can prevent the growth of population size or induce it, which determines the focus of interest in Wolbachia-host investigation. …”
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Bearing Fault Diagnosis Based on Collaborative Representation Using Projection Dictionary Pair by Dan Ma, Yixiang Lu, Yushun Zhang, Hua Bao, Xueming Peng

“…In state analysis of rolling bearings using collaborative representation theory, how to construct an excellent redundant dictionary to collaboratively represent the acquired normal or abnormal data has been being a significant issue. …”
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Experiments and Modeling on the Influence of Interfacial Tension on Imbibition Height of Low-Permeability Reservoir by Xiaoxia Ren, Aifen Li, Piyang Liu, Bingqing He

“…An imbibition model considering imbibition resistance and bending of pore throats was established based on fractal theory. According to the experimental results, variations in the imbibition height of low-permeability rock samples with time can be divided into three stages. …”
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Fractal Analysis of Fragmentation Distribution of Rockbursts Induced by Low-Frequency Seismic Disturbances by Lihua Hu, Zhenghu Zhang, Xin Liang, Chunan Tang

“…The fractal geometry theory was applied to study rockbursts and the fractal dimensions of fragmentation distribution of different types of rockbursts were calculated. …”
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Application of Modified Hoek–Brown Strength Criterion in Water-Rich Soft Rock Tunnel by Xianghui Deng, Yuncai Wang, Rui Wang, Daohong Xia, Zhiqing Zhao

“…In accordance with the classical elastic–plastic mechanics theory, the stress, strain, and displacement calculation formulas of the tunnel surrounding rock are derived. …”
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Engineering Magnetic Heterostructures with Synergistic Regulation of Charge‐Transfer and Spin‐Ordering for Enhanced Water Oxidation by Chongyan Hao, Yang Wu, Xiaobo Zheng, Yumeng Du, Yameng Fan, Weikong Pang, Anton Tadich, Shujun Zhang, Thomas Frauenheim, Tianyi Ma, Xiaoning Li, Zhenxiang Cheng

“…Experimental results and density functional theory calculations confirmed that the magnetic heterostructure exhibits both charge transfer and spin polarization. …”
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Modeling and Data Analysis of Bistatic Bottom Reverberation from a Towed Horizontal Array by Zhaohua Su, Jie Zhuo, Chao Sun

“…In this study, a bistatic reverberation model based on ray theory is presented to interpret the experimental phenomena. …”
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Car Purchase Intention Modeling in the Context of COVID-19: An Integrated Analysis of Impact Range and Impact Asymmetry by Xiaoyu Zhang, Chunfu Shao, Bobin Wang, Shichen Huang, Xiong Yang

“…The contributions of influencing factors are derived from the gradient boosting decision tree model and the asymmetric effects of attitudinal factors are further analyzed based on the three-factor theory. The comprehensive importance hierarchies of the two dependent variables are constructed through the integrated analysis of impact range and impact asymmetry. …”
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Quaternion-Based Fast SMC–PD Cross-Domain Tracking Control for Coaxial Hybrid Aerial–Underwater Vehicle Under Oceanic Disturbances by Mingqing Lu, Wei Yang, Fei Liao, Shichong Wu, Yumin Su, Wenhua Wu

“…The stability of the proposed control scheme is proved by using the Lyapunov theory. The numerical simulation results show that the controller has good robustness and effectiveness.…”
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Dynamic regimes in planetary cores: $\tau $–$\ell $ diagrams by Nataf, Henri-Claude, Schaeffer, Nathanaël

“…A complete toolbox is provided, allowing everyone to construct a $\tau $–$\ell $ diagram of a numerical simulation, a laboratory experiment, a theory, or a natural object.…”
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Development of a new method for measuring the electric field strength based on a dual electro-induction sensor by S. V. Biryukov, A. V. Tyukin, L. V. Tyukina

“…The method of measurement by the mean value assumes simultaneous measurement of two values of intensity E1 and E2 in one point of electric field with opposite sign errors. As the theory of construction of the new method has shown, it is possible to determine not only the measurement result as an average of two values of the strengths, but also to estimate the error of the measurement result and tentatively determine the distance to the field source. …”
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Presenting complex, balanced scorecard model and two-level data envelopment analysis for calculating the performance of social institutions by Mehrdad Navabakhsh, Nasser Shahsavari Pour

“…These parameters rely on experience, observation, experiment, hypothesis, and theory. Balanced Scorecard (BSC) seeks to make a balance between financial and economic objectives as outcomes of past performance (past-oriented indexes) and three indexes of customer processes, learning and growth, and development of human and social forces (future-oriented).Data Envelopment Analysis (DEA) is a non-parametric method for measuring the outputs or efficiency of homogeneous units with different inputs and outputs. …”
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Universal validity of the second law of information thermodynamics by Shintaro Minagawa, M. Hamed Mohammady, Kenta Sakai, Kohtaro Kato, Francesco Buscemi

“…This simplification contributes to a clearer understanding of the theory.…”
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Experience on clinical simulation in physiotherapy students by Santos Lucio Chero Pisfil, Aimeé Yajaira Díaz Mau, Milagros Nohely Rosas Sudario, Pierre Alberto Huamani Escudero, Jhosely Quispe Nina, Rosmy Gagliuffi Artica

“…<p><strong>Foundation:</strong> clinical simulation in health integrates into practice, the skills learned from theory. It is a learning resource to improve what has been learned that minimizes the risk to patients.…”
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