车联网的迅速发展加速了车辆的智能化进程,作为车内网与车外网通信的源头,车载终端T-BOX在车联网通信中扮演了举足轻重的角色。目前市面上主流的车载T-BOX系统可以通过无线传输模块将行车位置信息上传到远程通信服务提供商(telematics s...车联网的迅速发展加速了车辆的智能化进程,作为车内网与车外网通信的源头,车载终端T-BOX在车联网通信中扮演了举足轻重的角色。目前市面上主流的车载T-BOX系统可以通过无线传输模块将行车位置信息上传到远程通信服务提供商(telematics service provider,TSP)服务平台,TSP服务平台再通过其定位功能实时显示车辆地理位置,网联车也可以通过T-BOX实现对其他移动终端的通信。T-BOX在给用户带来便利的同时,也迎来了极大的信息安全风险。为了防止T-BOX遭受到信息安全问题,文章采用了适用于T-BOX与移动终端之间的认证体制及数据加密算法。不同于传统的公钥基础设施(public key infrastructure,PKJ),文章采用组合公钥(combined public key,CPK)认证体制,可以通过计算出用户的公钥和私钥,解决超大规模网络中密钥管理难题。展开更多
This paper describes an integrated platform for machine learning and big data analysis. The integrated platform is configured in a way that builds a large distributed data processing environment in the computing envir...This paper describes an integrated platform for machine learning and big data analysis. The integrated platform is configured in a way that builds a large distributed data processing environment in the computing environment that makes up the NVIDIA AI platform. In addition, this paper describes the background of this idea selection and the use of the software to build the unified platform. The technical details are shown in terms of how to create the proposed platform. In the anlaysis section, the methodology is provided and also the steps are explained as to how to use this integration platform. Finally, the expected effects are elaborated in the conclusion section.展开更多
海南省陵水县陵河知音桥为双层异形景观桥,跨河段由上层桥、下层桥、支桥与中心平台交错组成。上、下层桥分别为跨径布置(74.46+93+93+78)m和(77.56+71.52+71.52+76.06)m的4跨V形刚构桥,采用单箱室斜腹板钢箱梁;中心平台为2×23.98 ...海南省陵水县陵河知音桥为双层异形景观桥,跨河段由上层桥、下层桥、支桥与中心平台交错组成。上、下层桥分别为跨径布置(74.46+93+93+78)m和(77.56+71.52+71.52+76.06)m的4跨V形刚构桥,采用单箱室斜腹板钢箱梁;中心平台为2×23.98 m 2跨预应力混凝土V形刚构平台,采用预应力混凝土箱梁;主墩(主5号墩)采用C50混凝土双肢薄壁空心墩,基础采用嵌岩桩+承台结构形式。采用钢栈桥作为施工通道及钢箱梁吊装平台,利用BIM技术优化了钢栈桥平面布置。中心平台V形墩采用斜拉扣挂支架+满堂支架支撑组合支撑体系分段施工;中心平台采用支架整体预压、混凝土分段浇筑施工。钢箱梁采用三维建模软件深化设计、平位预拼装的加工制造方案和先吊装边跨、再整体横向滑移中心段、最后分段合龙的安装方案。展开更多
文摘车联网的迅速发展加速了车辆的智能化进程,作为车内网与车外网通信的源头,车载终端T-BOX在车联网通信中扮演了举足轻重的角色。目前市面上主流的车载T-BOX系统可以通过无线传输模块将行车位置信息上传到远程通信服务提供商(telematics service provider,TSP)服务平台,TSP服务平台再通过其定位功能实时显示车辆地理位置,网联车也可以通过T-BOX实现对其他移动终端的通信。T-BOX在给用户带来便利的同时,也迎来了极大的信息安全风险。为了防止T-BOX遭受到信息安全问题,文章采用了适用于T-BOX与移动终端之间的认证体制及数据加密算法。不同于传统的公钥基础设施(public key infrastructure,PKJ),文章采用组合公钥(combined public key,CPK)认证体制,可以通过计算出用户的公钥和私钥,解决超大规模网络中密钥管理难题。
文摘This paper describes an integrated platform for machine learning and big data analysis. The integrated platform is configured in a way that builds a large distributed data processing environment in the computing environment that makes up the NVIDIA AI platform. In addition, this paper describes the background of this idea selection and the use of the software to build the unified platform. The technical details are shown in terms of how to create the proposed platform. In the anlaysis section, the methodology is provided and also the steps are explained as to how to use this integration platform. Finally, the expected effects are elaborated in the conclusion section.
文摘海南省陵水县陵河知音桥为双层异形景观桥,跨河段由上层桥、下层桥、支桥与中心平台交错组成。上、下层桥分别为跨径布置(74.46+93+93+78)m和(77.56+71.52+71.52+76.06)m的4跨V形刚构桥,采用单箱室斜腹板钢箱梁;中心平台为2×23.98 m 2跨预应力混凝土V形刚构平台,采用预应力混凝土箱梁;主墩(主5号墩)采用C50混凝土双肢薄壁空心墩,基础采用嵌岩桩+承台结构形式。采用钢栈桥作为施工通道及钢箱梁吊装平台,利用BIM技术优化了钢栈桥平面布置。中心平台V形墩采用斜拉扣挂支架+满堂支架支撑组合支撑体系分段施工;中心平台采用支架整体预压、混凝土分段浇筑施工。钢箱梁采用三维建模软件深化设计、平位预拼装的加工制造方案和先吊装边跨、再整体横向滑移中心段、最后分段合龙的安装方案。
