background: rapidly increasing possibilities of exposure to environmental extremely low-frequency electromagnetic fields (elf-emf) have become a topic of worldwide investigation. epidemiological and laboratory studies suggest that exposure to elf-emf may increase cancer risk therefore assessment of chromosomal damage in various cell lines might be of predictive value for future risk estimation....

We apply time-frequency analysis to various acoustic transients. Estimates of the conditional mean frequency and the conditional bandwidth exhibit characteristic trends for different transients. This information may be helpful in distinguishing between different classes of transients, and in understanding the underlying mechanisms generating the transient. 1. INTRODUCTION One of the primary mea...

CORRECTION article Front. Energy Res., 12 July 2021Sec. Smart Grids https://doi.org/10.3389/fenrg.2021.718210

the purpose of load frequency control is to reduce transient oscillation frequencies than its nominal valueand achieve zero steady-state error for it.a common technique used in real applications is to use theproportional integral controller (pi). but this controller has a longer settling time and a lot of extramutation in output response of system so it required that the parameters be adjusted ...

background: evidence shows that in iran alcohol abuse rate may be of concern, especially among the youth. the mental and social health and addiction department of the ministry of health and medical education has designed a plan to prevent, treat, and rehabilitate the patients abusing alcohol in a time period of 2011‑2015. methods: in a 6‑month period, three guiding committees of experts in the ...

As demand for electric vehicles (EV) grows, interest in vehicle-to-grid (V2G) is increasing. Although V2G provides additional flexibility power systems, it can be an inconvenience the EV owner and shorten cycle life of batteries. In this paper, we propose a power-imbalance-based droop control (PIDC) V2G, which uses estimated active imbalance between supply demand, without any communications or ...