Dynamic spectrum allocation strategy with probabilistic feedback mechanism and performance analysis by Shun-fu JIN, Shi-ying GE, Zhan-qiang HUO

“…By introducing probabilistic feedback mechanism and energy detection threshold to cognitive radio networks,a novel dynamic spectrum allocation strategy is proposed to trade off the throughput and average delay of secondary users,as well as meet various network requirements.Considering the imperfect sensing results of secondary users,a kind of priority queueing model is established,in which two classes of users may interfere with each other,then the state transition probability matrix is constructed.Employing the method of matrix-geometric solution,the stationary distribution of system model is derived.Accordingly,the expressions for the performance measures in terms of channel utilization,throughput of secondary users,average delay of secondary users and interference ratio of primary users are given.With numerical experiments and system simulations,the effectiveness of the proposed dynamic spectrum allocation strategy is verified.Finally,the optimal design of energy detection threshold is provided.…”
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Dynamic Response Analysis of Planar Multilink Mechanism considering Wear in Clearances by Shuai Jiang, Xiulong Chen, Yu Deng

“…Clearance wear is one of the factors that affects dynamics for mechanical systems. A numerical methodology suitable for modeling and calculation of wear at multiple revolute clearance pairs in the field of the planar multilink mechanism is proposed. …”
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Immune and Inflammation in Acute Coronary Syndrome: Molecular Mechanisms and Therapeutic Implications by Haiming Wang, Zifan Liu, Junjie Shao, Lejian Lin, Min Jiang, Lin Wang, Xuechun Lu, Haomin Zhang, Yundai Chen, Ran Zhang

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Digital twin as a tool of the real-time enterprise management mechanism by Oleksandr Bazyk, Tetiana Grynko

“…This study is devoted to the actual problem of using digital doubles as a tool for an effective mechanism of real-time enterprise management in the context of modern global challenges. …”
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Noncoding RNA in the Regulation of Acute Aortic Dissection: From Profile to Mechanism by Ruibin Wei, Yingqing Feng

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Investigation of the kinematics of mechatronic device drive based on a spatial mechanism by F. F. Khabibullin, R. T. Islamov, T. A. Mustafaev, V. N. Krymova

Subjects: “…spatial mechanism…”
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Dimensional Analysis and Optimization of 3-DOF Parallel Bionic Mechanical Leg by Wang Xiaolei, Jin Zhenlin, Li Xiaodan, Liu Xiang

Subjects: “…Parallel bionic mechanical leg…”
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Neuroinflammation and ALS: Transcriptomic Insights into Molecular Disease Mechanisms and Therapeutic Targets by Giovanna Morello, Antonio Gianmaria Spampinato, Sebastiano Cavallaro

“…Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease affecting the motor nervous system. Despite the mechanism underlying motor neuron death is not yet clarified, multiple pathogenic processes have been proposed to account for ALS. …”
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Cross-domain service chain mapping mechanism based on Q-learning by Hongqi ZHANG, Rui HUANG, Yingjie YANG, Dexian CHANG, Liancheng ZHANG

“…A partitioning algorithm was designed to solve the problem based on Q-learning mechanism under this framework. Simulation results show that the performances of this method are better than other traditional methods on average partition time, average mapping cost, and acceptance ratioof service chain mapping request.…”
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Research on Sulfate Attack Mechanism of Cement Concrete Based on Chemical Thermodynamics by Peng Liu, Ying Chen, Zhiwu Yu, Lingkun Chen, Yongfeng Zheng

“…The sulfate attack has double effects on mechanical properties of specimens, which can affect the microstructure, phase composition, type, and morphology of erosion products.…”
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Visual Features in Alzheimer’s Disease: From Basic Mechanisms to Clinical Overview by María Alejandra Cerquera-Jaramillo, Mauricio O. Nava-Mesa, Rodrigo E. González-Reyes, Carlos Tellez-Conti, Alejandra de-la-Torre

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Mycophenolate mofetil: an update on its mechanism of action and effect on lymphoid tissue by Anna Krawczyk, Bernard Kravčenia, Tomasz Maślanka

“…The study contributed new insight into this mechanism, indicating that MMF effectively prevents the proliferation of T and B cells, but may be less effective against already proliferating cells. …”
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Advancing neurocritical care: Bridging molecular mechanisms and physiological monitoring to neurotherapeutics by Sung-Min Cho, Jose I. Suarez

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Contribution of Surface Treatment on Physical and Mechanical Properties of Recycled Concrete Aggregates by Brian Jacks Odero, Raphael N. Mutuku, Timothy Nyomboi, Zachary A. Gariy

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The Study on Mechanical and Electrical Properties of AA6061/Snail Shell Composites by N.E. Udoye, G.E. Ezike, O.S.I. Fayomi, J.O. Dirisu

“…Therefore, new materials with enhanced mechanical and ecologically favourable characteristics must be designed and produced. …”
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Mechanical and Thermal Properties of UHPC Exposed to High-Temperature Thermal Cycling by In-Hwan Yang, Jihun Park

“…The effects of high-temperature thermal cycling (temperatures up to 500°C) and steel fiber contents on the mechanical and thermal properties of ultrahigh-performance concrete (UHPC) containing polypropylene (PP) fibers were investigated in this study. …”
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The degradation mechanism of multi-resonance thermally activated delayed fluorescence materials by Byung Hak Jhun, Yerin Park, Hwang Suk Kim, Ji Hye Baek, Joonghyuk Kim, Eunji Lee, Hyejin Moon, Changjin Oh, Yongsik Jung, Seunghee Choi, Mu-Hyun Baik, Youngmin You

“…These findings provide insights into the stabilizing effects of deuteration and mechanism-driven strategies for designing MR-TADF compounds with improved operational longevity.…”
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Secure RSSI-based node positioning mechanism for wireless sensor networks by EA-yong Y, Li XU, Hui LIN

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Long-Term Outcomes of Mechanical Thrombectomy for Stroke: A Meta-Analysis by David J. McCarthy, Anthony Diaz, Dallas L. Sheinberg, Brian Snelling, Evan M. Luther, Stephanie H. Chen, Dileep R. Yavagal, Eric C. Peterson, Robert M. Starke

“…Mechanical thrombectomy (MT) has become the standard treatment for large vessel occlusion (LVO) in acute ischemic stroke (AIS). …”
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Optimal Design of the Pitching Mechanism Considering the Influence of Erecting Angle Curves by Yuan Yi, Deng Wenzhu, Wu Bude, Wang Yuqi, Lu Wei, Ding Yuli

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