In the context of an increasingly severe cybersecurity landscape and the growing complexity of offensive and defen-sive techniques,Zero Trust Networks(ZTN)have emerged as a widely recognized technology.Zero Trust not ...In the context of an increasingly severe cybersecurity landscape and the growing complexity of offensive and defen-sive techniques,Zero Trust Networks(ZTN)have emerged as a widely recognized technology.Zero Trust not only addresses the shortcomings of traditional perimeter security models but also consistently follows the fundamental principle of“never trust,always verify.”Initially proposed by John Cortez in 2010 and subsequently promoted by Google,the Zero Trust model has become a key approach to addressing the ever-growing security threats in complex network environments.This paper systematically compares the current mainstream cybersecurity models,thoroughly explores the advantages and limitations of the Zero Trust model,and provides an in-depth review of its components and key technologies.Additionally,it analyzes the latest research achievements in the application of Zero Trust technology across various fields,including network security,6G networks,the Internet of Things(IoT),and cloud computing,in the context of specific use cases.The paper also discusses the innovative contributions of the Zero Trust model in these fields,the challenges it faces,and proposes corresponding solutions and future research directions.展开更多
In order to solve the problem of low precision and complication of three-dimensional modeling about micro-segment gear, one method of setting up the accurate 3D model is introduced. At first, the equation of the profi...In order to solve the problem of low precision and complication of three-dimensional modeling about micro-segment gear, one method of setting up the accurate 3D model is introduced. At first, the equation of the profile curve and the dedendum transition curve is set up, and the coordinates of the whole tooth profile are calculated by the program developed by Dephi software. And then the data of coordinates is imported to Catia, three-dimensional modeling can be got through the operations of rotating, mirror, incision and array. The method used in this paper is accurate and simple, which supplies the academic basis of CAE analysis and virtual design for micro-segment gear and relevant products.展开更多
Objective: to analyze the results of the treatment of spinal fractures with subcutaneous micro screws + trauma screws. Methods: from September 2018 to April 2021, a total of 60 cases of spinal fractures in our hospita...Objective: to analyze the results of the treatment of spinal fractures with subcutaneous micro screws + trauma screws. Methods: from September 2018 to April 2021, a total of 60 cases of spinal fractures in our hospital were selected. The numerical table was randomly divided into two groups with 30 cases in each group. The patients in the conventional group were given conventional surgical treatment, while the patients in the micro group were given minimally invasive percutaneous vertebral screw + traumatic nail. Before and after treatment, the hump angle of the back, the height of the vertebral front, the visual shape of glasses and the frequency of complications were compared between the two groups. Results: after treatment, the spine lobe, the height of the anterior border of the spine, the visual model of the micro-group were lower than those of the conventional group, and the incidence of complications of the micro-group were lower than those of the conventional group (n < 0.05). Conclusion: the accurate clinical effect of micro-skin spinal screw and spinal trauma in spinal fracture can improve the prognosis and reduce complications.展开更多
基金supported by the National Natural Science Foundation of China(Grants Nos.62473146,62072249 and 62072056)the National Science Foundation of Hunan Province(Grant No.2024JJ3017)+1 种基金the Hunan Provincial Key Research and Development Program(Grant No.2022GK2019)by the Researchers Supporting Project Number(RSP2024R509),King Saud University,Riyadh,Saudi Arabia.
文摘In the context of an increasingly severe cybersecurity landscape and the growing complexity of offensive and defen-sive techniques,Zero Trust Networks(ZTN)have emerged as a widely recognized technology.Zero Trust not only addresses the shortcomings of traditional perimeter security models but also consistently follows the fundamental principle of“never trust,always verify.”Initially proposed by John Cortez in 2010 and subsequently promoted by Google,the Zero Trust model has become a key approach to addressing the ever-growing security threats in complex network environments.This paper systematically compares the current mainstream cybersecurity models,thoroughly explores the advantages and limitations of the Zero Trust model,and provides an in-depth review of its components and key technologies.Additionally,it analyzes the latest research achievements in the application of Zero Trust technology across various fields,including network security,6G networks,the Internet of Things(IoT),and cloud computing,in the context of specific use cases.The paper also discusses the innovative contributions of the Zero Trust model in these fields,the challenges it faces,and proposes corresponding solutions and future research directions.
基金Support by Nation Science and Technology (2009BAG12B03)
文摘In order to solve the problem of low precision and complication of three-dimensional modeling about micro-segment gear, one method of setting up the accurate 3D model is introduced. At first, the equation of the profile curve and the dedendum transition curve is set up, and the coordinates of the whole tooth profile are calculated by the program developed by Dephi software. And then the data of coordinates is imported to Catia, three-dimensional modeling can be got through the operations of rotating, mirror, incision and array. The method used in this paper is accurate and simple, which supplies the academic basis of CAE analysis and virtual design for micro-segment gear and relevant products.
文摘Objective: to analyze the results of the treatment of spinal fractures with subcutaneous micro screws + trauma screws. Methods: from September 2018 to April 2021, a total of 60 cases of spinal fractures in our hospital were selected. The numerical table was randomly divided into two groups with 30 cases in each group. The patients in the conventional group were given conventional surgical treatment, while the patients in the micro group were given minimally invasive percutaneous vertebral screw + traumatic nail. Before and after treatment, the hump angle of the back, the height of the vertebral front, the visual shape of glasses and the frequency of complications were compared between the two groups. Results: after treatment, the spine lobe, the height of the anterior border of the spine, the visual model of the micro-group were lower than those of the conventional group, and the incidence of complications of the micro-group were lower than those of the conventional group (n < 0.05). Conclusion: the accurate clinical effect of micro-skin spinal screw and spinal trauma in spinal fracture can improve the prognosis and reduce complications.
