Smartphones and other connected devices rely on data services,such as Web Services (WS),Google Cloud Messaging (GCM) and Firebase Cloud Messaging (FCM),to share
The long awaited cloud computing concept is a reality now due to the transformation of computer generations.However,security challenges have become the biggest
股票指数期货是金融期货中产生最晚的一个类别。自1982年2月美国堪萨斯期货交易所上市交易以来,股票指数期货日益受到各类投资者的重视,交易规模迅速扩大,交易品种不断增加
This paper studies the performance of a submillimeter wave antenna operating between frequencies 0.1 THz and 10 THz with a 4-cyano-4-pentylbiphenyl [5CB] substa
20世纪90年代,Ogawa等[1]运用高场磁共振设备首次描述了鼠脑部血氧水平依赖(blood oxygen level dependent,BOLD)MR信号产生的机制.BOLD-MRI随即被广泛地应用于中枢神经功能
In the Vehicular Ad-hoc NETworks (VANET),the collection and dissemination of life-threatening traffic event information by vehicles are of utmost importance.How
图像处理器(GPU,graphics processing unit)是一种高度并行化的流式处理器,将其引入显微CT重构可大幅加快重构速度。将CT重建程序并行化设计,使用CUDA编程标准成功实现程序编写,在单块NVDIA GTX295的GPU上运行CT重建程序。结果表明,与CPU串行方法相比,使用GPU并行计算最高可得150倍左右的加速比,将重构时间缩短至15 min左右。因此可认为,GPU并行处
Recently,the application of Wireless Sensor Networks (WSNs) has been increasing rapidly.It requires privacy preserving data aggregation protocols to secure the
本文以武汉市黄陂区的某所农村小学为个案研究,对其“农远工程”项目实施的情况进行了深入调查,并对存在的问题及相应的对策进行了分析和阐述,提出了一些农村远程教育有效实