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Secure ticket-based authentication method for IoT applications

Digital Communications and Networks 2023年第3期9卷 710-716页

作者： mojtaba alizadeh Mohammad Hesam Tadayon Alireza Jolfaei Computer Engineering Department Lorestan UniversityKhorramabadIran Iran Telecommunication Research Center(ITRC) TehranIran Department of Computing Macquarie UniversitySydneyAustralia

The recent surge in the number of machines,appliances,and services connected to the Internet demands secure processing and transmission of sensory *** plays a crucial role in a typical security model used in the Internet of Things(IoT),and it protects data communications from various attacks,such as impersonation and denial of service,by verifying and allowing legitimate users to access the IoT ***,recent authentication literature has not addressed the need for developing a scalable and efficient authentication method in this *** paper proposes a secure and anonymous ticket-based authentication method for the *** proposed method protects the network from various security and privacy threats such as data alternation and denial of service while also offering mutual authentication and sensor *** security and performance evaluations confirm the improvement.

关键词： IoT Internet of things Authentication Privacy Security

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New insights on the role of chondroitin sulfate proteoglycans in neural stem cell–mediated repair in spinal cord injury

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Neural Regeneration Research 2025年第6期20卷 1699-1700页

作者： Seyed mojtaba Hosseini Soheila Karimi-Abdolrezaee Department of Physiology and Pathophysiology Spinal Cord Research CentreRady Faculty of Health SciencesUniversity of ManitobaWinnipegMBCanada Manitoba Multiple Sclerosis Research Center WinnipegMBCanada Children Hospital Research Institute of Manitoba WinnipegMBCanada

Extensive neurodegeneration is a hallmark of traumatic spinal cord injury (SCI) that underlies permanent sensorimotor and autonomic impairments (alizadeh et al.,2019).Following the primary impact,the spinal cord undergoes a cascade of secondary injury mechanisms that are driven by disruption of the blood-spinal cord ba rrier,vascula r inju ry,glial reactivity,neu roinfla mmation,oxidative stress,lipid peroxidation,and glutamate excitotoxicity that culminate in neuronal and oligodendroglial cell death,demyelination,and axonal damage(alizadeh et al.,2019).To achieve a meaningful functional recovery after SCI,regeneration of new neurons and oligodendrocytes and their successful growth and integration within the neural network are critical steps for reconstructing the damaged spinal cord tissue (Fischer et al.,2020).

关键词： peroxidation Fischer injury

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Numerical investigation of grooves effects on the thermal performance of helically grooved shell and coil tube heat exchanger

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Chinese Journal of Chemical Engineering 2022年第4期35卷 424-434页

作者： Mehdi Miansari Mehdi Rajabtabar Darvishi Davood Toghraie Pouya Barnoon mojtaba Shirzad As'ad alizadeh Department of Mechanical Engineering Qaemshahr BranchIslamic Azad UniversityQaemshahrIran Department of Mechanical Engineering Khomeinishahr BranchIslamic Azad UniversityKhomeinishahrIran Department of Mechanical Engineering Department of Mechanical EngineeringBabol Noshirvani University of TechnologyBabolIran Department of Mechanical Engineering Urmia UniversityUrmiaIran Department of Mechanical Engineering College of EngineeringUniversity of ZakhoZakhoIraq

Heat exchangers are integral parts of important industrial units such as petrochemicals,medicine and power *** to the importance of systems energy consumption,different modifications have been applied on heat exchangers in terms of size and *** this study,a novel heat exchanger with helically grooved annulus shell and helically coiled tube was investigated by numerical *** grooves with the same pitch of the helical coil tube and different depth are created on the inner and outer wall of annulus shell to improve the thermal performance of heat *** the first section,thermal performance of the shell and coil heat exchanger with the helical grooves on its outer shell wall was compared with same but without helical *** the second section,helically grooves created on both outer and inner wall of the annulus shell with different groove *** results showed that the heat exchanger with grooves on both inner and outer shell wall has better thermal performance up to 20%compared to the heat exchanger with grooves on only outer shell *** highest thermal performance achieves at lower flow rates and higher groove depths whereas the pressure drop did not increase significantly.

关键词： Numerical simulation Heat transfer Turbulent flow Shell and coil Helically grooved shell Heat exchanger

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