In this paper, we consider the canonical sporadic task model with the system-wide energy management problem. Our solution uses a generalized power model, in which the static power and the dynamic power are considered. We present a static solution to schedule the sporadic task set, assuming worstcase execution time for each sporadic tasks release, and propose a dynamic solution to reclaim the sl...

the main goal of this article is to reflect upon the relationship between creativity and urban transformation. it stems from the assumption that creativity has a paradoxical nature as it is simultaneously used for the production of the neoliberal city and by those seeking to challenge it and build alternative urban realities. first, we put forth a critical review of the creative city narrative,...

Microsprinkler irrigation is a potential method to alleviate soil salinization. After conducting a homogeneous, highly saline, clayey, and coastal soil from the Bohai Gulf in northern China in a column experiment, the results show that the depth of the wetting front increased as the water amount applied increased, low-salinity and low-SAR enlarged after irrigation and water redistribution, and ...

The history of the Internet is that of rapid change and adaptability. The simple IP service model and the informal standardization process have fostered rapid evolution of systems and services. However, as the Internet has transformed from an academic playground to an essential commercial infrastructure the service model and the standardization process have become more complex. While outsourcin...

In a petabyte-scale file system, metadata access performance and scalability will significantly affect the whole system’s performance and scalability. We present a new approach called Dynamic Hashing (DH) for metadata management. DH introduces the RELAB (RElative LoAd Balancing) strategy to adjust the metadata distribution when the workload changes dynamically. Elasticity strategy is proposed t...

We present a scalable garbage collection scheme for systems that store objects at multiple servers while clients run transactions on locally cached copies of objects. It is the first scheme that provides fault tolerance for such a system: Servers recover from failures and retrieve information needed for safe garbage collection; clients do not recover from failures, yet the scheme is able to rec...