Spectral Factor of Colored Solar Cells: A Case Study on the Main Urban Areas in Romania by Sergiu-Mihai Hategan, Marius Paulescu

“…SF quantifies the relative power gain or loss caused by the spectral difference from STC. The theory is illustrated with a case study on the main four urban areas in Romania. …”
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High-Order Sliding Mode-Based Synchronous Control of a Novel Stair-Climbing Wheelchair Robot by Juanxiu Liu, Yifei Wu, Jian Guo, Qingwei Chen

“…Stability of the closed-loop system is proved by Lyapunov theory. The simulation is performed by MATLAB to verify the effectiveness of the proposed controller. …”
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Game Analysis of Supply Chain Enterprises’ Choice of Carbon Emission Reduction Behavior under Environmental Regulation and Consumers’ Low Carbon Preference by Huanhuan Huo, Haiyan Liu, Xinzhong Bao, Wei Cui

“…Under the background of low-carbon economy, in order to explore the internal mechanism of enterprises implementing carbon emission reduction behavior, this paper uses evolutionary game theory and numerical simulation method to study the evolutionary stability strategy and its influencing factors of carbon emission reduction behavior of supply chain enterprises in a two-level supply chain composed of a single supplier and a single manufacturer from a dynamic perspective, considering environmental regulation and consumers’ preference for low carbon emission. …”
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Constraints on Gravitation from Causality and Quantum Consistency by Mark P. Hertzberg

“…This leads to a discussion of a special type of scalar-tensor theory: the F(R) models. We show that, unlike general relativity, these models do not possess the requisite counterterms to be consistent quantum effective field theories. …”
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Insecurity and the State’s Humanitarian Intervention in Northern Nigeria by Emmanuel Achus Jah, Yunusa Abare Kallah, Tanko Shawulu Paul

“…The study adopts the theory of State Failure as humanitarian intervention is a duty of the state but the Nigeria state lags. …”
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Considering the Characteristics of Traffic Risk Factors and the Method of Establishing a Flexible Traffic System by Lingling Chen, Yuanyuan Zhang

“…Based on the large urban road network, this research uses the theory of coordinated control and learning mechanism, fuzzy control, dynamic reprogramming, and other theories to study phase sequence, balance peripheral load, and overall traffic flow. …”
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Confluent and Reticulated Papillomatosis Successfully Treated with Topical Vitamin A Derivative by Manal Alsulami, Bader Alharbi, Yaser Alotaibi, Fadi Alghamdi, Adel Alsantali

“…The effectiveness of tretinoin in this patient supports the theory that CARP is a keratinization disorder. Initiating treatment with topical tretinoin when no limitations for its use would be reasonable as it can provide a safer alternative to systemic therapy.…”
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Sociological Analysis of Islamic Law on The Implementation of the Jo Kawin Bocah Program in Reducing Early Marriage Rates (Case Study on the PKK Team of Temanggung Regency) by Luqiya Suci Rahmadani, Malik Ibrahim, Hanifah Salma Muhammad

“…Second, based on Atho' Mudzhar's sociological theory of Islamic law, factors such as religious practices, social structures, interactions, and support from community organizations significantly influence the program's outcomes. …”
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High Accuracy 2D-DOA Estimation for Conformal Array Using PARAFAC by Liangtian Wan, Weijian Si, Lutao Liu, Zuoxi Tian, Naixing Feng

“…Based on the characteristic of the cylindrical conformal array, the decoupling between the polarization parameter and DOA can be realized with a specially designed array structure. 2D-DOA estimation of the cylindrical conformal array is accomplished via parallel factor analysis (PARAFAC) theory. To avoid parameter pairing problem, the algorithm forms a PARAFAC model of the covariance matrices in the covariance domain. …”
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A two-layer network model of the evolution of public risk perception of emerging technologies by Xiaqun Liu, Xiaoyue Qiu, Yaming Zhuang

“…Considering the impact of the spread of risk events on public risk perception of emerging technologies, this study adopts complex network theory to construct a two-layer network model consisting of “the spread of risk events–the evolution of public risk perception” of emerging technologies. …”
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HISTORICAL DEVELOPMENT OF AFRICAN POLITICAL THOUGHT: A THEMATIC REVIEW by Abdulrasheed Abdulyakeen

“…The study identified that African political theory offers workable solutions to the continent's many political, economic, social, and cultural issues. …”
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Model Tests of Earth Pressure on Buried Rigid Pipes and Flexible Pipes underneath Expanded Polystyrene (EPS) by Qiang Ma, Zhun Ku, Henglin Xiao

“…The results show that the earth pressure calculated by nonlinear earth pressure theory is on the brink of that tested in the field. …”
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Chemical Reactivity Properties, Solubilities, and Bioactivity Scores of Some Pigments Derived from Carotenoids of Marine Origin through Conceptual DFT Descriptors by Norma Flores-Holguín, Juan Frau, Daniel Glossman-Mitnik

“…All the chemical reactivity descriptors for the systems were calculated via conceptual density functional theory (CDFT). Finally, the potential bioavailability and druggability as well as the bioactivity scores for the marine carotenoid pigments were predicted through different methodologies already reported in the literature, which have been previously validated during the study of other natural products obtained from marine sources.…”
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Nonlinear Resonance Interaction between Conjugate Circumferential Flexural Modes in Single-Walled Carbon Nanotubes by Matteo Strozzi, Francesco Pellicano

“…The nanotubes are analysed through a continuous shell model, and a thin shell theory is used to model the dynamics of the system; free-free boundary conditions are considered. …”
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Differential Subordinations for Nonanalytic Functions by Georgia Irina Oros, Gheorghe Oros

“…Having those papers as inspiration, we try to introduce the notion of subordination for nonanalytic functions of classes C1 and C2 following the classical theory of differential subordination for analytic functions introduced by Miller and Mocanu in their papers (1978 and 1981) and developed in their book (2000). …”
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Using Video Messages to Promote Residential Adoption of Fertilizer Best Management Practices by Amanda D. Ali, Laura A. Sanagorski Warner, Peyton Beattie, Alexa J. Lamm, Joy N. Rumble

“…The Diffusion of Innovations (DOI) theory can be used to explain how a population accepts and adopts fertilizer best management practices (BMPs) over time (Rogers, 2003). …”
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Projection-Based Adaptive Backstepping Control of a Transport Aircraft for Heavyweight Airdrop by Ri Liu, Xiuxia Sun, Wenhan Dong, Guangzhi Xu

“…The convergence properties and robustness of the control method are proved via Lyapunov theory. Simulations are conducted under the condition that one transport aircraft performs a maximum load airdrop task at a height of 82 ft, using single row single platform mode. …”
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A Damage Constitutive Model of Rock under Hydrochemical Cyclic Invasion by Lunan Sun, Yu Zhang, Zhe Qin, Tengfei Wang, Sheng Zhang

“…Based on the principle of damage mechanics, a hydraulic-chemistry-mechanics (HCM) coupling damage variable is defined. Based on the theory of microbody strength distribution, the constitutive equation for rock damage under the coupled effect of water chemistry and cyclic water invasion is established. …”
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The Lagrangian and Hamiltonian for the Two-Dimensional Mathews-Lakshmanan Oscillator by Wang Guangbao, Ding Guangtao

“…The purpose of this paper is to illustrate the theory and methods of analytical mechanics that can be effectively applied to the research of some nonlinear nonconservative systems through the case study of two-dimensionally coupled Mathews-Lakshmanan oscillator (abbreviated as M-L oscillator). (1) According to the inverse problem method of Lagrangian mechanics, the Lagrangian and Hamiltonian function in the form of rectangular coordinates of the two-dimensional M-L oscillator is directly constructed from an integral of the two-dimensional M-L oscillators. (2) The Lagrange and Hamiltonian function in the form of polar coordinate was rewritten by using coordinate transformation. (3) By introducing the vector form variables, the two-dimensional M-L oscillator motion differential equation, the first integral, and the Lagrange function are written. …”
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Scattering, absorption and emission of highly excited strings by M. Firrotta, E. Kiritsis, V. Niarchos

“…For the absorption of massless modes in open string theory, in particular, we find a constant, frequency-independent cross-section. …”
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