Results 1 to 10 of about 4,745,445 (215)

A Note on the Characterization of Two-Dimensional Quasi-Einstein Manifolds

Mathematics, 2020
In this article, we aim to introduce new classes of two-dimensional quasi-Einstein pseudo-Riemannian manifolds with constant curvature. We also give a classification of 2D quasi-Einstein manifolds of warped product type working in local coordinates.
Gabriel Bercu
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The Application of the Multi-Agent Coverage and Self-Healing Control Based on a Swarm Intelligence SONM and Potential Function Approach

IEEE Access, 2020
Self-organizing network will probably be a priority choice for the multi-agent systems because of its good features of configuration, management, optimization and self-healing. In this paper, a swarm intelligence coverage and self-healing method based on
Zhenhua Pan, Ling Shu, Hongbin Deng, Dongfang Li   +3 more
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SYNTHESIS OF MOBILE OBJECTS COMPROMISABLE OPTIMAL TRAJECTORIES IN THE CONFLICT ENVIRONMENT

Sučasnì Informacìjnì Tehnologìï u Sferì Bezpeki ta Oboroni, 2015
This paper presents the problem of moving objects optimal trajectories in the conflict environment, as well as the opposite problem of optimizing the placement of the active conflicting objects.
Albert M. Voronin, Yurii K. Ziatdinov, Oleksandr Y. Permiakov, Ihor D. Varlamov   +3 more
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Development and Application of Molecular Force Fields for Natural Gas Hydrate⁃Bearing Sediment Systems

Liaoning Shiyou Huagong Daxue xuebao
This review examines advancements in potential functions for hydrate⁃bearing sediments, analyzing the evolution of single⁃phase optimization, multiphase interface parameter correction, and machine learning integration methodologies to elucidate how ...
Qiannan YU, Lei YE, Jinqi KANG, Zhipei LIANG, Ying ZHAO, Huimin TANG, Yuan JIE   +6 more
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Ro-Vibrational and Pure Vibrational Partition Functions and Thermodynamic Properties in an Eckart-like Potential Model

AppliedMath
This study obtained the energy levels and examined the partition function (Z) of a quantum system described by an Eckart-like potential model. By adopting the Greene–Aldrich approximation scheme for the centrifugal term, the radial Schrödinger equation ...
Clement Atachegbe Onate, Matthew Olanrewaju Oluwayemi, Olumide Oyewale Ajani   +2 more
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Bacterial Community Structural Dynamics and Predicted Functional Potential in Loxostege sticticalis

Insects
Symbiotic bacteria contribute to insect physiology and environmental adaptation, yet their dynamics and potential functions in the major migratory pest Loxostege sticticalis remain poorly understood.
Cheng Ye, Yuxuan Chen, Huimin Gu, Yunxia Cheng, Dianjie Xie, Zhong Liang, Jun Lin, Xuan Li, Lei Zhang, Xingfu Jiang, Hailong Kong   +10 more
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Gradient descent Sarsa(?)algorithm based on the adaptive potential function shaping reward mechanism

Tongxin xuebao, 2013
In the reinforcement leaning tasks with continuous state spaces,the algorithms are usually facing the problems of ill initial performance and low convergence speed.In order to solve these problems,the potential function shaping reward mechanism was ...
Fei XIAO, Quan LIU, Qi-ming FU, Hong-kun SUN, Long GAO   +4 more
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A necessary and sufficient condition for some steady Ricci solitons to have positive asymptotic volume ratio

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2013
In this paper, we firstly establish a useful ODE relationship between R1(c) and V1(c) on the steady Ricci soliton. Based on this, we obtain a necessary and sufficient condition for some complete noncompact steady gradient Ricci solitons to have positive ...
Gao Xiang
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A Method of Abnormal States Detection Based on Adaptive Extraction of Transformer Vibro-Acoustic Signals

Energies, 2017
State monitoring is very important for the safe operation of high-voltage transformers. A non-contact vibro-acoustic detection method based on the Blind Source Separation (BSS) was proposed in this paper to promote the development of transformer on-line ...
Liang Zou, Yongkang Guo, Han Liu, Li Zhang, Tong Zhao   +4 more
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Soil organic carbon, pH, and ammonium nitrogen controlled changes in bacterial community structure and functional groups after forest conversion

Frontiers in Forests and Global Change
IntroductionLand-use changes significantly impact soil properties in forests, which is an area of concern. Therefore, the effects of changing forest types on soil microbial communities and their functions in northern subtropical forest regions need to be
Xiaoqing Cao, Xiaoqing Cao, Kai Xia, Hongfei Zhao, Pengfei Deng, Pengfei Deng, Zhen Teng, Xiaoniu Xu, Xiaoniu Xu   +8 more
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