A programmable intrusion detection method is presented to identify the malicious attacks distributed energy resources (DERs) in cyber–physical networked microgrids. The proposed injects small signals into system and uses response abnormal conditions. Because of low or even zero inertia induced by integrations DER power-electronic-interfaces, microgrids have very limited resilience capability; t...

ions user abstractions community abstractions abstract object manager virtual resources physical resources capabilities PSOS Levels

To resolve the problem that virtual machine deployment reservation scheme waste a lot of resources and single-objective deployment algorithm is not comprehensive, a virtual machine resource allocation algorithm based on virtual machines group multi-objective genetic algorithm is proposed. The algorithm is divided into group coding and resources coding. Resources coding integrated coding accordi...

Physical activity is known to improve emotional experiences, and positive emotions have been shown to lead to important life outcomes, including the development of psychosocial resources. In contrast, time spent sedentary may negatively impact emotional experiences and, consequently, erode psychosocial resources. Two studies tested whether activity independently influenced emotions and psychoso...

BACKGROUND To investigate socioeconomic patterning of physical activity resources in Copenhagen. METHODS We used multivariate logistic regression analysis to examine the association between physical activity-supportive resources [public open space (POS), cycling and walking paths, sports facilities, and intersection density] and neighborhood sociodemographic indicators (low education, recent ...

Background: Nosocomial infections are the most important problems of health. The prevalence of nosocomial infection is 7-10 percent of admitted patients. the present study was carried out to determine the degree of following the preventive principles of nosocomial infections in educational hospitals of Khorramabad city at 2004-2005. Material and methods: This descriptive, cross –sectional ...