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A novel method for combining active surge control system (ASCS) and surge avoidance system (SAS) for a centrifugal compressor is presented. ASCS is a promising method to improve compressor operating area by stabilizing surge. However, this method is not applied yet in industrial compressors. Safety issue is considered in implementing the ASCS. A failure in ASCS may endanger the compressor by en...

Background: The present study aimed to evaluate the surge capability of Shahid Rajaee Trauma Hospital in Shiraz in response to a mass causality incident. Methods: This descriptive study was conducted in Shahid Rajaee Hospital in Shiraz in 2017. The Delphi technique was used in this study. For this purpose, three checklists were used for the emergency department, operating room, and intensive c...

In this study, an unsteady aerodynamic simulation is performed to realize the influences of platform surge motion on the aerodynamic performance of a high capacity offshore floating wind turbine. A dynamic model with pitch angle control system is utilized to propose a more realistic model of wind turbine and also achieve the rated condition of the rotor. The transient effect of platform surge m...

Metal oxide surge arrester accurate modeling and its parameter identification are very important for insulation coordination studies, arrester allocation and system reliability. Since quality and reliability of lightning performance studies can be improved with the more efficient representation of the arresters´ dynamic behavior. In this paper, Big Bang – Big Crunch and Hybrid Big Bang – Big Cr...

PURPOSE To assess the relationship between the kinetics of the serum CA15-3 level and the five-year disease-free survival rate of breast cancer patients. METHODS The subjects of this study, 297 women who were diagnosed with breast cancer, were the subset of patients operated on at Kosin University Gospel Hospital from January 2008 to December 2010. We evaluated the change of serum CA15-3 leve...

1 Overview SURGE (Scalable URL Reference Generator) is a WWW workload generator which is based on analytical models of WWW use. It relies on the fact that a great deal of prior work has been done in the analysis of WWW transactions, and that models for many of the important characteristics of WWW use have been developed. The goal of SURGE is to provide a scalable framework which, from the serve...

The efficiency of overhead power lines can be increased by series compensation or HVDC transmission. These complex systems can be protected from overvoltages by metal oxide surge arresters. Both porcelain and polymer tube design surge arresters are used for these applications, however, polymer tube design surge arresters offer various advantages over porcelain arresters such as light weight, ex...