Parametric Design and System Development of Different Types of Rollers Globoidal Cam Deceleration Mechanism by Chen Ruyun, Gong Qingshan, Cao Zhanlong, Sun Daocheng, Tan Hao

“…In order to improve the design efficiency of different types of rollers globoidal cam deceleration mechanism and standardize the design system, a parametric design method based on NX secondary development is proposed, and the design system is developed. According to the theory of space geometry and the principle of conjugate surface, the working profile equations of five typical types of rollers, including cylindrical roller, conical roller, ball-cone roller, drum roller and ball roller, and globoidal cam are deduced. …”
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Arabs and Ideology in the Region of Comparative Literature Subject Study: Critique and Analysis of Ahmad Abdol Aziz’s Book by Hadi Nazari Monazam

“…But, the result shows that his attempt is an approach between France classicism and American unbridle and free ideology.He refers to France theory in the comparative part, and it is not an exaggeration if he said we cannot find anyspecific book’s idea in the world of comparative literature as well as Arab comparative literature.…”
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Dynamic Modeling and Nonlinear Vibration Research of the Rotary Cutting Mechanism Based on Bond Graphs by Zhao Jiayi, Gao Yiyang, Zhao Changzhen, Rao Xiaobo, Ding Shunliang, Gao Jianshe

“…In this study, the dynamic model of the rotary cutting mechanism of a rotary pipe cutter is established based on the bond graph theory, the key dynamic parameters are determined by calculating the sensitivity, and the bifurcation mechanism of key parameters is revealed comprehensively by using the bifurcation diagram, the Lyapunov exponent diagram, the phase diagram and the time response diagram. …”
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Link Quality Prediction via a Neighborhood-Based Nonnegative Matrix Factorization Model for Wireless Sensor Networks by Yuxin Zhao, Shenghong Li, Jia Hou

“…By introducing complex network theory and machine learning techniques, we propose a neighborhood-based nonnegative matrix factorization model to predict link quality in wireless sensor networks. …”
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One-Dimensional Large-Strain Nonlinear Consolidation of Overconsolidated Clays with a Threshold Hydraulic Gradient by Chuanxun Li, Jinyang Xiao, Yang Yang, Wenbing Wu

“…However, the consolidation theory of overconsolidated clays with the threshold hydraulic gradient has been rarely reported in the literature. …”
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Quantifying Fractal Dimension in Integrated Experimental Data of Tight Sandstones by Dazhong Ren, Rongxi Li, Dengke Liu, Yuhong Li, Na Liu, Fu Yang

“…In this research, we report a new criterion for pore structure typing based on the fractal geometry theory. The fractal dimension values were first accurately calculated through intrusion and nonintrusion methods. …”
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Exploring institutional governance dynamics in China’s transnational higher education (TNHE): a study of Sino-foreign joint institutes by Huili Si, Stephen Rayner

“…Grounded in organizational theory, the article applies Verhoest et al.’s (2004) governance typology and the indicators by De Boer and Enders (2017) to provide conceptual and empirical insights into Transnational Higher Education (TNHE) governance in China. …”
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Molecular modelling of betalactamic antibiotic by Elso Manuel Cruz Cruz, Grettel Díaz Ramón

“…The molecular properties were calculated according to the Density Functional Theory at a B3LYP/6-31G(d) level. The density of the atomic charges and the frontier orbitals were analyzed. …”
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De-extinction beyond species: Restoring ecosystem functionality through large herbivore rewilding by Paul R Jepson

“…These processes open new avenues in both extinction discourse and ecological theory and encourage us to explore how de-extinct species can drive the recovery of European ecosystems.…”
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Photocatalytical Properties and Theoretical Analysis of N, Cd-Codoped TiO2 Synthesized by Thermal Decomposition Method by Hongtao Gao, Bing Lu, Fangfang Liu, Yuanyuan Liu, Xian Zhao

“…The effect of the incorporation of N and Cd on electronic structure and optical properties of TiO2 was studied by first-principle calculations on the basis of density functional theory (DFT). The impurity states, introduced by N 2p or Cd 5d, lied between the valence band and the conduction band. …”
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Food: Transformation in Social Networks by D. N. Karpova

“…Both socialized and communicative functions of food are described through theories of R. Bart and G. Simmel. It is underlined in the text that food transforms and gains new qualities notin traditional ways we used to think but in social and cultural construction in virtual space and through network communication.…”
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Effect of Cement Asphalt Mortar Debonding on Dynamic Properties of CRTS II Slab Ballastless Track by Ping Wang, Hao Xu, Rong Chen

“…In order to analyze the influence of mortar debonding on the dynamic properties of CRTS II slab ballastless track, a vertical coupling vibration model for a vehicle-track-subgrade system was established on the base of wheel/rail coupling dynamics theory. The effects of different debonding lengths on dynamic response of vehicle and track system were analyzed by using the finite element software. …”
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A study on UAV target detection and 3D positioning methods based on the improved deformable DETR model and multi-view geometry by Xuebin Liu, Hanshan Li

“…The objective of this research is to improve UAV detection and positioning accuracy by proposing an enhanced Deformable DETR (Detection Transformer) model integrated with multi-view geometry theory. To achieve this, the study first preprocesses UAV-collected data, then optimizes the convolutional layers of the original DETR model to better handle object occlusion and scale variations. …”
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One-dimensional QCD at finite density and its ’t Hooft-Veneziano limit by O. Borisenko, V. Chelnokov, S. Voloshyn, P. Yefanov

“…Abstract An exact solution of one-dimensional lattice gauge theory at finite temperature and non-zero chemical potential is reviewed for the gauge groups G = Z(N), U(N), SU(N) for all values of N and the number of fermion flavors N f . …”
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Research on the dynamic characteristics of the cavitation bubble collapsing between multiple particles by Xiaoyu Wang, Jingrong Hu, Yufei Wang, Yuning Zhang, Yuning Zhang

“…Combining the Kelvin impulse theory and the results of high-speed photography experiments, this paper researches the dynamic behaviors of a single bubble located between three equal-sized spherical particles. …”
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Symbiosis Evolution of Science Communication Ecosystem Based on Social Media: A Lotka–Volterra Model-Based Simulation by Ming Xia, Xiangwu He, Yubin Zhou

“…The main contribution of this study is to construct a symbiosis evolution model of science communication ecosystem (SCE) between scientists and social media platforms based on the symbiosis theory and the Lotka–Volterra model to discuss the evolution of their symbiotic patterns and population size under different symbiosis coefficients. …”
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Elite Governance, Development, and Public Safety in Nigeria by Johnson Oluwole Ayodele, Jane Adebusuyi

“…We anchored the study on Pareto’s circulation of elite theory. It adopts a qualitative method to collect secondary data which are content and thematically analyzed. …”
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Artificial neural networks for stability analysis and simulation of delayed rabies spread models by Ramsha Shafqat, Ateq Alsaadi

“…The existence and uniqueness of solutions was demonstrated using fixed-point theory within the context of piecewise derivatives and integrals. …”
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Through restful waters and deep commotion: A study on burnout and health impairment of Italian seafarers from the JD-R model perspective. [version 1; peer review: 1 approved, 2 app... by Lara Colombo, Lara Bertola, Margherita Zito, Clarissa Cricenti, Lorenzo Cena, Francesco Buscema

“…This study seeks to examine the impact of burnout and health impairment in the maritime industry, using the Job Demand-Resources theory as a framework. Methods To investigate these phenomena, an online questionnaire was sent to 239 Italian seafarers (94.6% men, Mage = 39.44, SD = 12.8). …”
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Evolution Mechanism of Thickly Sticky Loose Layered Arch Structure and Prediction Method of Initial Ground Fissure Caused by Underground Coal Mining by Yang Yingming, Li Quansheng, Liu Shiliang, Zhang Kai, Zhao Yongqiang, Zhang Guojun, Zhang Weilong, Liu Gang

“…In view of the problem of taking the loose layer as the uniform cloth load while ignoring thickly sticky loose layered arch (TSLLA) of the traditional mining rock overburden structure analysis, combined with the geological conditions of shallow buried thickly sticky loose layer in Shendong mining area, the mechanical model of the mining TSLLA bearing structure is established, the variation law of arch height under different loose layers is analyzed, and the formation conditions of TSLLA are given. The first theory deduced the dynamic evolution mechanism of TSLLA structure advancing. …”
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