Abstract Guangzhou metro line 1 is one of the first to adopt floating slab track in Chinese mainland, it has been operation for more than 20 years up now. In order obtain vibration reduction performance after long service, systematic field test and laboratory are carried out. The results show that: (1) rubber bearing keeps good appearance. (2) measurement shore hardness elongation at break that...

Orthopaedic disorders account for significant disability among adults in the United States. Previous studies have demonstrated long-term disability in military personnel with musculoskeletal conditions. However, these studies focused primarily on battlefield-injured service members and did not evaluate the entire population. The goal of this study was to determine and compare the disabling cond...

Resource sharing computing is a project that realizes high performance computing by utilizing the resources of peers that are connected to the Internet. Resource sharing computing provides a dynamic internet environment where peers can freely participate, but it raises questions on the reliability of operation processing. Existing resource sharing computing stores intermediate operation results...

An important factor in the successful deployment of federated web services-based business activities will be the ability to guarantee reliable distributed operation and execution under scalable conditions. For example advanced failure management is essential for any reliable distributed operation but especially for the target areas of web service architectures, where the activities can be const...

Managing customer service is critical for both nonprofit and for-profit dial-up modem Internet service providers. When system operators face excess demand, they can either add capacity or adapt their management techniques to deal with their limited resources—this article considers the latter. We examine system configuration options and the resultant effects on customer service levels in a simul...

In this paper, we consider two important objectives of network operation: (i) capacity minimization and (ii) revenue maximization. For capacity minimization, we formulate three operational phases in survivable WDM network operation viz., initial call set up, short/medium-term reconfiguration, and long-term reconfiguration. All three phases are derived from a single integer linear programming (I...

Extremity injuries make up 54% of combat wounds sustained in Operation Iraqi Freedom and Operation Enduring Freedom. In a cohort of war-wounded service members, we identified the conditions secondary to battle injury that result in disqualification from continued service. The Army Physical Evaluation Board records of 464 wounded service members who were injured between October 2001 and January ...

This paper presents a modeling approach to determine the impact on throughput on air fleet resources on the operation of airports. The primary constraints for this analysis are i) adherence to schedules, ii) optimization of resource utilization and iii) reduction of operational costs. Any plan for an impact analysis on throughput on air fleet resources on the operation of airports has to take i...

Taking advantage of the application paradigm of web service, a general paradigm of service computing is discussed for underlying workflow execution based on collaborative operation. In line with the scenario of service computing, a certificate-driven workflow application paradigm based on service computing is discussed under grid environment in form of virtual organization. The details engaged ...