abstract: in this paper a control scheme for grid-connected operation mode and the island state of distributed generation is presented. in normal conditions, every inverter dg system in micro-grids to supply a preset power, normally operate in a constant current control mode. when micro-grids removed from the network, dg inverter of each system must recognize the island and change position to v...

BACKGROUND Thrombin generation has been shown to reflect coagulation potential and factor VIII (FVIII) levels in patients with hemophilia A. We hypothesize that thrombin generation in the presence of thrombomodulin reflects plasma FVIII levels better. DESIGN AND METHODS Plasma FVIII levels were determined chromogenically and thrombin generation was measured with and without thrombomodulin in ...

The youth market is a highly coveted consumer segment that is difficult to both reach and influence. The current youth market has been called the Echo Boom Generation, but it is most commonly known as Generation Y. This generation of Americans consists of individuals born between 1982 and 2003 (Howe & Strauss, 2000). Generation Y makes up almost 25% of the United States population, while Genera...

the present paper aims to highlight the origin of the youth movements in iran during the intervening years of 1971 and 2002. during these three decades, youth movement was one of the important social movements in the political arena of the country. while explaining the origin of the movement, two changes i.e. 'generation gap' and 'democracy' have been studied and it was found that the origin of...

conventional passive distribution networks are changing to modern active distribution networks which are not radial. conventional load flow methods should be modified for new distribution networks analysis. in modern distribution networks distributed generation (dg) units are embedded with conventional and/or renewable resources. dg units are generally modeled as pv or pq nodes which inject ...

background: the aim of this study was to determine the serotypes and antimicrobial susceptibility of shigella spp. in isfahan, (iran) from 2010 to 2015.   methods: this retrospective study was conducted on shigella isolates in four tertiary care hospitals. the process of bacterial isolation and determination of susceptibility was performed by standard microbiological guidelines. the patients we...

voltage profile and losses are important factors in a distribution network in which there arevariety of ways to improve them. in this paper, distributed generation (dg) is used as a solutionto improve the above characteristics. backward/forward sweep load flow algorithm is used dueto the inefficiency of usual load flow algorithms because of high r/x ratio and their lack ofconvergence in distrib...

background: the aim of this study was to determine the serotypes and antimicrobial susceptibility of shigella spp. in isfahan, (iran) from 2010 to 2015.   methods: this retrospective study was conducted on shigella isolates in four tertiary care hospitals. the process of bacterial isolation and determination of susceptibility was performed by standard microbiological guidelines. the patients we...

a detailed model of wind power station, including double fed induction generator, dfig is presented in this paper. two control mechanisms are included in the model. the inner control system uses stator flux oriented control for the rotor side converter and grid voltage vector control for the grid side converter. the outer control system is used for wind turbine pitch angle. pscad/emtdc is used ...