Actual Gear Surface Static Unloaded Transmission Error of Spiral Bevel Gear and Its Effect on Dynamic Characteristic by Zhisheng Chen, Siyu Chen, Jinyuan Tang, Shandong Peng

“…The model is based on the tooth surface point measured by the coordinate measuring instrument，the model forms a discrete tooth surface point through interpolation and obtains the static unloaded transmission error through contact analysis. The theoretical tooth surface STE of the model is compared with the theoretical tooth surface STE obtained by the classic TCA, the correctness of the method is verified, and the actual tooth surface STE is calculated. …”
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Higher-speed Trapped-oil Pressure Research and Relief-groove Invention for Gear Pump by Changming Wen, Yulong Li

“…The results show that the theoretical analysis is correct by the consistency of experiment，simulation and theoretical results. …”
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Canonical differential equations beyond genus one by Claude Duhr, Franziska Porkert, Sven F. Stawinski

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Young Karl Marx: communism and critique of German philosophy before Economic and Philosophic Manuscripts of 1844 by Yushan Wang

“…If we return to Marx’s four major theoretical texts from that period, with young Marx’s critique of German philosophy as intellectual background, we will find that, young Marx initially reconstructed his philosophical base and established a human-centered theoretical framework. …”
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Study of Reaction Mechanisms in α + 69Ga reaction at ≈10 – 50 MeV by F. K. Amanuel

“…Good agreement between the theoretical predictions and experimental results were obtained. …”
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Study on Damage Constitutive Model of High-Concentration Cemented Backfill in Coal Mine by Baogui Yang, Haigang Yang

“…For the difference of theoretical derivation of constitutive relation, a new DCM based on residual strength was proposed. …”
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TOURQUAL: Proposal of a Protocol For Quality Evaluation on Services at Tourist Attractions by Tiago Savi Mondo, Gabriela Gonçalves Silveira Fiates

“…From this initial exploratory research, a preliminary theoretical model was designed which worked with 35 indicators. …”
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Charged superradiant instability in a spherical regular black hole by Yizhi Zhan, Hengyu Xu, Shao-Jun Zhang

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Research on Load Stress in Bottom of Ultra-short Flexsplines of Harmonic Drives by Li Yifu, Chen Xiaoxia, Xing Jingzhong, Chen Liang

“…In order to reveal the stress distribution law of a bottom of the ultra-short flexspline under load, a theoretical calculation method of the load equivalent stress of the bottom of the flexspline is proposed. …”
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Classification of transportation and forwarding costs by O. A. Maksimenko

“…The main research methods used in writing the work were the method of theoretical system analysis and the monographic (descriptive) method.…”
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Long-range quantum tunneling via matter waves by Yuan-Xing Yang, Si-Yuan Bai, Jun-Hong An

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Unfixed Bias Iterator: A New Iterative Format by Zeqing Zhang, Xue Wang, Jiamin Shen, Man Zhang, Sen Yang, Fanchang Yang, Wei Zhao, Jia Wang

“…We provide sufficient theoretical guarantees and theoretically prove that our iterator can obtain correct results with convergence, as well as a better generalization. …”
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How to use live streaming platforms to elicit impulse purchases of tourism and hospitality products from consumers? by Dan Wang, Ching-Cheng Shen, Jennifer Pasion Loverio

“…Purpose: This study aims to provide a theoretical foundation and guidance for practitioners by redefining digital strategies in the tourism and hospitality industry. …”
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The Periodic Solutions of a Class of Difference Equations by Qi Wang, Weiling You, Gengrong Zhang

“…Finally, the theoretical results are verified by numerical simulation. …”
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Close-to-starlike logharmonic mappings by Zayid Abdulhadi

“…Such mappings will be called close-to-starlike logharmonic mappings. Representation theorems and distortion theorems are obtained. Moreover, we determine the radius of univalence and starlikeness of these mappings.…”
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Comprehensive sensing system of new smart city by Jing YANG, Zuwei ZHANG, Daoyuan YAO, Yang HU, Junjiang QIAN, Zhe ZHOU, Xubo HU, Yupeng YUAN, Xiaofei LI

“…Focusing on the demand of building the new smart city,the basic theoretical research on the comprehensive sensing system of cities has been described.Firstly,the system architecture of the comprehensive sensing system was proposed respectively.Then,the data system of the comprehensive sensing system was presented.Finally,the technology system of the comprehensive sensing system was given.The important theoretical support could be provided by the proposed solution for the new smart city construction.…”
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Comparative Ethics of Modern Payment Models by Jacob Riegler

“…This ethical debate over providing care is combined with the theoretical framework of how to price and pay for healthcare. …”
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Permeability Enhancement of Coal Seam by Lower Protective Layer Mining for Gas Outburst Prevention by Aiping He, Hua Fu, Bingjie Huo, Chaojun Fan

“…The research provides a theoretical guidance for the gas drainage field application in the lower protective layer mining for prevention of coal and gas outburst.…”
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Stochastic differential equations to model influenza transmission with continuous and discrete-time Markov chains by Kazi Mehedi Mohammad, Md. Kamrujjaman

“…This study take account into the modeling, mathematical analysis, developing theories and numerical simulation of Influenza virus transmission together with stochastic behavior. …”
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Experimental Study of the Flow Mechanism of Deep Lacustrine Carbonate Reservoirs in the Yingxi Area of the Qaidam Basin by Xiangrong Luo, Yongxian Zheng, Penggang Huang, Li’an Yang, Xiaodong Chen, Xiaojuan Ren, Guo Wang, Yanzhi Wang, Zhiguo Wang, Xiaoxiao Li

“…Many of the exploration and development theories derived for conventional clastic rock reservoirs are not applicable to pore-fracture lacustrine carbonate reservoirs. …”
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