This paper examines the effect of adding the third screen to current newspaper business models. Newspapers have begun to employ such technologies to bolster audience numbers and to attract more advertisers. The compar...This paper examines the effect of adding the third screen to current newspaper business models. Newspapers have begun to employ such technologies to bolster audience numbers and to attract more advertisers. The comparison of the old revenue model of newspapers with a new emerging business model utilizing newer technologies allows a framework of a possibly new model to be applied to older models. Media are desperate to gain audiences lost in the past decade and trying to reformulate their current business models to reflect new technology. The way media are framing the third screen as a possible savior to their current business model shows that the media realize the old model of revenue through advertising and subscriptions is antiquated. This paper presents a new business model for media by embracing new technologies and adds to current scholarship of media management in a new technologically inclined world.展开更多
This paper provides an overview of the degradation in CANDU^a （Canadian Deuterium Uranium） feeders in operating plants observed from the mid 1990s onward. The degradation has been dominated by feeder wall thinning, ...This paper provides an overview of the degradation in CANDU^a （Canadian Deuterium Uranium） feeders in operating plants observed from the mid 1990s onward. The degradation has been dominated by feeder wall thinning, caused by FAC （flow accelerated corrosion） and feeder cracking. This paper summarizes the industry＇s response to the discovery of these two degradation mechanisms and the methodologies, tools and technologies developed to monitor the degradation and assess the continued fitness for service to manage the plant life. This paper identifies some of the lessons gained from more than a decade of industry effort, and discusses how these lessons are being implemented in the refurbished and new CANDU plants. CANDU^a is a registered trademark of Atomic Energy of Canada Limited.展开更多
IPv6 has been an inevitable trend with the depletion of the global IPv4 address space. However, new IPv6 users still need public IPv4 addresses to access global IPv4 users/resources, making it important for providers ...IPv6 has been an inevitable trend with the depletion of the global IPv4 address space. However, new IPv6 users still need public IPv4 addresses to access global IPv4 users/resources, making it important for providers to share scarce global IPv4 addresses effectively. There are two categories of solutions to the problem, carrier-grade NAT （CGN） and ＇A＋P＇ （each customer shaving the same IPv4 address is assigned an excluded port range）. However, both of them have limitations. Specifically, CGN solutions are not scalable and can bring much complexity in managing customers in large-scale deployments, while A＋P solutions are not flexible enough to meet dynamic port requirements. In this paper, we propose a hybrid mechanism to improve current solutions and have deployed it in the Tsinghua University Campus Network. The real traffic data shows that our mechanism can utilize limited IPv4 addresses efficiently without degrading the performance of applications on end hosts. Based on the enhanced mechanism, we propose a method to help service providers make address plans based on their own traffic patterns and actual requirements.展开更多
文摘This paper examines the effect of adding the third screen to current newspaper business models. Newspapers have begun to employ such technologies to bolster audience numbers and to attract more advertisers. The comparison of the old revenue model of newspapers with a new emerging business model utilizing newer technologies allows a framework of a possibly new model to be applied to older models. Media are desperate to gain audiences lost in the past decade and trying to reformulate their current business models to reflect new technology. The way media are framing the third screen as a possible savior to their current business model shows that the media realize the old model of revenue through advertising and subscriptions is antiquated. This paper presents a new business model for media by embracing new technologies and adds to current scholarship of media management in a new technologically inclined world.
文摘This paper provides an overview of the degradation in CANDU^a （Canadian Deuterium Uranium） feeders in operating plants observed from the mid 1990s onward. The degradation has been dominated by feeder wall thinning, caused by FAC （flow accelerated corrosion） and feeder cracking. This paper summarizes the industry＇s response to the discovery of these two degradation mechanisms and the methodologies, tools and technologies developed to monitor the degradation and assess the continued fitness for service to manage the plant life. This paper identifies some of the lessons gained from more than a decade of industry effort, and discusses how these lessons are being implemented in the refurbished and new CANDU plants. CANDU^a is a registered trademark of Atomic Energy of Canada Limited.
文摘IPv6 has been an inevitable trend with the depletion of the global IPv4 address space. However, new IPv6 users still need public IPv4 addresses to access global IPv4 users/resources, making it important for providers to share scarce global IPv4 addresses effectively. There are two categories of solutions to the problem, carrier-grade NAT （CGN） and ＇A＋P＇ （each customer shaving the same IPv4 address is assigned an excluded port range）. However, both of them have limitations. Specifically, CGN solutions are not scalable and can bring much complexity in managing customers in large-scale deployments, while A＋P solutions are not flexible enough to meet dynamic port requirements. In this paper, we propose a hybrid mechanism to improve current solutions and have deployed it in the Tsinghua University Campus Network. The real traffic data shows that our mechanism can utilize limited IPv4 addresses efficiently without degrading the performance of applications on end hosts. Based on the enhanced mechanism, we propose a method to help service providers make address plans based on their own traffic patterns and actual requirements.
