Beyond-5G(B5G)aims to meet the growing demands of mobile traffic and expand the communication space.Considering that intelligent applications to B5G wireless communications will involve security issues regarding user ...Beyond-5G(B5G)aims to meet the growing demands of mobile traffic and expand the communication space.Considering that intelligent applications to B5G wireless communications will involve security issues regarding user data and operational data,this paper analyzes the maximum capacity of the multi-watermarking method for multimedia signal hiding as a means of alleviating the information security problem of B5G.The multiwatermarking process employs spread transform dither modulation.During the watermarking procedure,Gram-Schmidt orthogonalization is used to obtain the multiple spreading vectors.Consequently,multiple watermarks can be simultaneously embedded into the same position of a multimedia signal.Moreover,the multiple watermarks can be extracted without affecting one another during the extraction process.We analyze the effect of the size of the spreading vector on the unit maximum capacity,and consequently derive the theoretical relationship between the size of the spreading vector and the unit maximum capacity.A number of experiments are conducted to determine the optimal parameter values for maximum robustness on the premise of high capacity and good imperceptibility.展开更多
The development of digital technology has brought about a substantial evolution in the multimedia field.The use of generative technologies to produce digital multimedia material is one of the newer developments in thi...The development of digital technology has brought about a substantial evolution in the multimedia field.The use of generative technologies to produce digital multimedia material is one of the newer developments in this field.The“Digital Generative Multimedia Tool Theory”(DGMTT)is therefore presented in this theoretical postulation by Timothy Ekeledirichukwu Onyejelem and Eric Msughter Aondover.It discusses and describes the principles behind the development and deployment of generative tools in multimedia creation.The DGMTT offers an all-encompassing structure for comprehending and evaluating the fundamentals and consequences of generative tools in the production of multimedia content.It provides information about the creation and use of these instruments,thereby promoting developments in the digital media industry.These tools create dynamic and interactive multimedia content by utilizing machine learning,artificial intelligence,and algorithms.This theory emphasizes how crucial it is to comprehend the fundamental ideas and principles of generative tools in order to use them efficiently when creating digital media content.A wide range of industries,including journalism,advertising,entertainment,education,and the arts,can benefit from the practical use of DGMTT.It gives artists the ability to use generative technologies to create unique and customized multimedia content for its viewers.展开更多
Information technology education has played a more important role under the background of“Internet+”.However,a combination of education and information technology is only limited between online teaching platforms an...Information technology education has played a more important role under the background of“Internet+”.However,a combination of education and information technology is only limited between online teaching platforms and massive open online courses(MOOC).This paper proposes a visual teaching system based on cloud computing and big data techniques via combing virtual and real techniques online and offline to provide rich teaching resources for students.It can also use the digital human-computer interaction answering function to address students’questions.Additionally,it can provide a medium for young teachers to quickly improve their professional teaching skills.This paper aims to achieve a multimedia system via integrating“Internet+”technology with education to help improve talent training and abilities of young teachers.展开更多
目的:研究“互联网+”模式对3~6岁儿童肥胖相关饮食行为的干预效果。方法:采用整群随机抽样方法抽取南充市顺庆区4所条件基本相同的幼儿园中2018年6~12月在南充市中心医院儿童保健门诊就诊的3~6岁单纯性肥胖儿童96例,随机分为试验组46例...目的:研究“互联网+”模式对3~6岁儿童肥胖相关饮食行为的干预效果。方法:采用整群随机抽样方法抽取南充市顺庆区4所条件基本相同的幼儿园中2018年6~12月在南充市中心医院儿童保健门诊就诊的3~6岁单纯性肥胖儿童96例,随机分为试验组46例,对照组50例,试验组进行常规儿童保健+饮食行为干预+“互联网+”干预+个案管理,对照组进行常规儿童保健+饮食行为干预,1年后观察两组儿童干预效果,包括身高、体质量、腰围、体质量指数(body mass index,BMI)、体脂百分比等。结果:干预前两组儿童身高、体质量、腰围、体质指数、体脂百分比比较差异无统计学意义(P>0.05),干预后两组儿童各指标均明显改善(P<0.05),试验组改善更明显(P<0.01)。结论“:互联网+”模式下3~6岁儿童肥胖相关饮食行为干预相比传统线下干预模式效更显著,可以更好达到预防、干预、控制肥胖的目的。展开更多
临床血液学检验知识较抽象、难懂,医学检验专业学生普遍存在临床思维缺乏,在临床血液学检验时难以合理运用理论知识做出准确的诊断报告。而《临床血液学检验技术》实验课是将理论知识应用于实践的桥梁。以多媒体教学系统为平台,通过以...临床血液学检验知识较抽象、难懂,医学检验专业学生普遍存在临床思维缺乏,在临床血液学检验时难以合理运用理论知识做出准确的诊断报告。而《临床血液学检验技术》实验课是将理论知识应用于实践的桥梁。以多媒体教学系统为平台,通过以问题为基础的教学法(problem based learning,PBL)和案例教学法(case based learning,CBL)的新型实验课教学模式旨在培养学生的实验操作能力、临床思维、独立思考及主动解疑的能力,在学习理论知识的同时培养学生的动手能力和实践能力,为今后学生走上临床检验诊断工作打下坚实的基础。文章从《临床血液学检验技术》实验课教学现状及问题,PBL、CBL及联合教学法的优点,PBL及CBL联合多媒体教学具体实施方法、教学成效及评价反馈方面来探讨如何提高《临床血液学检验技术》实验课教学效果,为临床检验专业实验课教学提供了新的方向。展开更多
针对矿井安全生产检测数据传输效率低下和共享性差的特点,综合考虑开发成本与工作环境要求,基于CAN(Controller Area Network)和REST(Representational State Transfer)物联网技术提出了智能矿山安全检测方法,设计了矿山安全检测判别程...针对矿井安全生产检测数据传输效率低下和共享性差的特点,综合考虑开发成本与工作环境要求,基于CAN(Controller Area Network)和REST(Representational State Transfer)物联网技术提出了智能矿山安全检测方法,设计了矿山安全检测判别程序,采用最大熵模型算法开发了数据信息预警程序。结合CAN总线技术,将多传感器信息进行有机融合并进行安全数据检测,将井下传感器设备相关信息经过判断分析后传输至总机。将所提安全检测方法进行了系统开发,并在淮北某矿进行了应用。结果表明:基于CAN和REST物联网技术的安全检测方法能够实现多点测量,并可随机增减检测设备,可实现数据实时传输和共享,有助于实现矿山安全实时检测。展开更多
基金funded by The National Natural Science Foundation of China under Grant(No.62273108,62306081)The Youth Project of Guangdong Artificial Intelligence and Digital Economy Laboratory(Guangzhou)(PZL2022KF0006)+3 种基金The National Key Research and Development Program of China(2022YFB3604502)Special Fund Project of GuangzhouScience and Technology Innovation Development(202201011307)Guangdong Province Industrial Internet Identity Analysis and Construction Guidance Fund Secondary Node Project(1746312)Special Projects in Key Fields of General Colleges and Universities in Guangdong Province(2021ZDZX1016).
文摘Beyond-5G(B5G)aims to meet the growing demands of mobile traffic and expand the communication space.Considering that intelligent applications to B5G wireless communications will involve security issues regarding user data and operational data,this paper analyzes the maximum capacity of the multi-watermarking method for multimedia signal hiding as a means of alleviating the information security problem of B5G.The multiwatermarking process employs spread transform dither modulation.During the watermarking procedure,Gram-Schmidt orthogonalization is used to obtain the multiple spreading vectors.Consequently,multiple watermarks can be simultaneously embedded into the same position of a multimedia signal.Moreover,the multiple watermarks can be extracted without affecting one another during the extraction process.We analyze the effect of the size of the spreading vector on the unit maximum capacity,and consequently derive the theoretical relationship between the size of the spreading vector and the unit maximum capacity.A number of experiments are conducted to determine the optimal parameter values for maximum robustness on the premise of high capacity and good imperceptibility.
文摘The development of digital technology has brought about a substantial evolution in the multimedia field.The use of generative technologies to produce digital multimedia material is one of the newer developments in this field.The“Digital Generative Multimedia Tool Theory”(DGMTT)is therefore presented in this theoretical postulation by Timothy Ekeledirichukwu Onyejelem and Eric Msughter Aondover.It discusses and describes the principles behind the development and deployment of generative tools in multimedia creation.The DGMTT offers an all-encompassing structure for comprehending and evaluating the fundamentals and consequences of generative tools in the production of multimedia content.It provides information about the creation and use of these instruments,thereby promoting developments in the digital media industry.These tools create dynamic and interactive multimedia content by utilizing machine learning,artificial intelligence,and algorithms.This theory emphasizes how crucial it is to comprehend the fundamental ideas and principles of generative tools in order to use them efficiently when creating digital media content.A wide range of industries,including journalism,advertising,entertainment,education,and the arts,can benefit from the practical use of DGMTT.It gives artists the ability to use generative technologies to create unique and customized multimedia content for its viewers.
基金supported in part by the Ideological and Political Education of Financial Decision Support System under KVSZZZ202315in part by Collaborative Education by the Ministry of Education under 220501210164954in part by Teaching Education Reform of NPU under 06410-23GZ230106。
文摘Information technology education has played a more important role under the background of“Internet+”.However,a combination of education and information technology is only limited between online teaching platforms and massive open online courses(MOOC).This paper proposes a visual teaching system based on cloud computing and big data techniques via combing virtual and real techniques online and offline to provide rich teaching resources for students.It can also use the digital human-computer interaction answering function to address students’questions.Additionally,it can provide a medium for young teachers to quickly improve their professional teaching skills.This paper aims to achieve a multimedia system via integrating“Internet+”technology with education to help improve talent training and abilities of young teachers.
文摘目的:研究“互联网+”模式对3~6岁儿童肥胖相关饮食行为的干预效果。方法:采用整群随机抽样方法抽取南充市顺庆区4所条件基本相同的幼儿园中2018年6~12月在南充市中心医院儿童保健门诊就诊的3~6岁单纯性肥胖儿童96例,随机分为试验组46例,对照组50例,试验组进行常规儿童保健+饮食行为干预+“互联网+”干预+个案管理,对照组进行常规儿童保健+饮食行为干预,1年后观察两组儿童干预效果,包括身高、体质量、腰围、体质量指数(body mass index,BMI)、体脂百分比等。结果:干预前两组儿童身高、体质量、腰围、体质指数、体脂百分比比较差异无统计学意义(P>0.05),干预后两组儿童各指标均明显改善(P<0.05),试验组改善更明显(P<0.01)。结论“:互联网+”模式下3~6岁儿童肥胖相关饮食行为干预相比传统线下干预模式效更显著,可以更好达到预防、干预、控制肥胖的目的。
文摘临床血液学检验知识较抽象、难懂,医学检验专业学生普遍存在临床思维缺乏,在临床血液学检验时难以合理运用理论知识做出准确的诊断报告。而《临床血液学检验技术》实验课是将理论知识应用于实践的桥梁。以多媒体教学系统为平台,通过以问题为基础的教学法(problem based learning,PBL)和案例教学法(case based learning,CBL)的新型实验课教学模式旨在培养学生的实验操作能力、临床思维、独立思考及主动解疑的能力,在学习理论知识的同时培养学生的动手能力和实践能力,为今后学生走上临床检验诊断工作打下坚实的基础。文章从《临床血液学检验技术》实验课教学现状及问题,PBL、CBL及联合教学法的优点,PBL及CBL联合多媒体教学具体实施方法、教学成效及评价反馈方面来探讨如何提高《临床血液学检验技术》实验课教学效果,为临床检验专业实验课教学提供了新的方向。
文摘针对矿井安全生产检测数据传输效率低下和共享性差的特点,综合考虑开发成本与工作环境要求,基于CAN(Controller Area Network)和REST(Representational State Transfer)物联网技术提出了智能矿山安全检测方法,设计了矿山安全检测判别程序,采用最大熵模型算法开发了数据信息预警程序。结合CAN总线技术,将多传感器信息进行有机融合并进行安全数据检测,将井下传感器设备相关信息经过判断分析后传输至总机。将所提安全检测方法进行了系统开发,并在淮北某矿进行了应用。结果表明:基于CAN和REST物联网技术的安全检测方法能够实现多点测量,并可随机增减检测设备,可实现数据实时传输和共享,有助于实现矿山安全实时检测。