production of electricity for promotion of people’s welfares is inevitable.there are about 54000 mw of various power plants in iran. the type of power plants includes gas, steam, combined, hydro and a very minute amount of wind mills. the per capita electricity production is about 2200 kwh. power plants can impose adverse environmental impacts during construction and utilization phases. envir...

conclusions pine trees can be used as a worthy bio-indicator for hms pollution monitoring in the ambient air in areas with extensive vegetation of pine trees. results iron had the highest concentration (345.0053 mg/kg) in leaves when compared with other hms. the concentration of zn, cu, pb and cd were 26.1384, 5.5905, 2.9963 and 0.7383 mg/kg, respectively. spatial mapping indicated that industr...

to examine metal content of dandelion plants in relation to environmental metal levels,concentrations of cd, hg and pb were analyzed in plant parts (leaves and roots) and soil samples from fivesites in the city of brno (czech republic), differentially impacted by pollution. soils and plants werecollected mid-april 2011. atomic absorption spectrometry was used to determine concentrations of thes...

This paper describes an Autoassociative Neural Network (AANN) based plant wide sensor calibration monitoring system that detects sensor drifts and replaces the faulty sensor output with a best estimate of the fault free value. A network tuning paradigm has also been implemented that allows the network to function when new plant conditions are encountered. The system was tested using data from t...

Power plants require continuous monitoring and inspection at frequent intervals. In the recent times, thermal power generation has under gone long process of modification right from its conventional working principles to automation using technology in the form of DCS, PLC, SCADA (Supervisory Control and Data Acquisition) etc. An automated system improves the system efficiency, plant monitoring,...

following the appearance of a quarantine pest, tomato leaf miner, tuta absoluta (povolny), in europe, monitoring of this species in iran was started by the cooperation of the plant protection organization of iran and the iranian research institute of plant protection. according to the surveys, the first emergence of this pest was detected in october 2010 in azerbaijan-e-gharbi province.

The study seeks to show how online remote condition monitoring helps to improve the maintenance system in a power plant from mainly predetermined and corrective approach to predictive maintenance and, the resultant benefits of its adoption. The findings clearly indicate the various aspects of online remote condition monitoring system which thermal power plants can consider to improve on plant s...