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On the hospital floor, prompt detection and appropriate treatment of clinical deterioration of ward patients are essential for successful rescue. In this paper, a continuous time Markov chain model is presented to describe the ward patient status and analyze the patient rescue processes, which are characterized by the transitions between different patient states, such as risk, non-risk, intervention...
Improving patient safety is the top priority for hospital management. On the hospital floor, an inpatient may experience clinical deterioration during his/her stay. Quick and appropriate treatment from the nurse, physician, and rapid response team (RRT) is essential to rescue the patient. In this paper, we introduce an analytical method to model and analyze the hospital inpatient rescue (HIR) process...
The work flow of surgical operations in emergency department can be interrupted due to various disruptions. Reducing such disruptions is of significant importance to ensure successful operations. In this paper, we introduce a continuous time Markov chain model to analyze the disruptions and their impacts. Analytical formulas have been derived to evaluate the probabilities of normal operations and...
Addressing the general characteristics of random fluctuations in the propagation process, by the uniform network S-I-R-S model for research object, the paper established a random network model based on continuous time Markov chain, analyzed the steady-state threshold and critical conditions of random model, the conclusion of random network model is the same with the result of the mean-field approach...
In this paper, a performability model is developed to analyze the effect of Access Point failures on the performance of a WiFi communication system. The system consists of seven Access Points in which mobile nodes (vehicles) travel at speeds up to 60 Km/hr. Traffic information is continuously sent by the infrastructure to the vehicles (I2V) in the form of bursts of identical packets to decrease packet...
The term resilience is used differently by different communities. In general engineering systems, fast recovery from a degraded system state is often termed as resilience. Computer networking community defines it as the combination of trustworthiness (dependability, security, performability) and tolerance (survivability, disruption tolerance, and traffic tolerance). Dependable computing community...
In recent years, remarkable attention has been paid to software aging phenomena, in which the performance of software systems degrades with time. Software aging may eventually leads to transient crash/hang failures. The well-known technique of software rejuvenation can be regarded as the most effective procedure to counteract the aging phenomena. In this paper, the concept of common software-aging-related...
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