because of large-scale dry regions, salt marsh monitoring is necessary using of remote sensing data's. the aim of this study is to monitor salt kashan using of satellite data's processing. therefore, the satellite images of lissiii sensor were used. initially, the technique of color composite images envi4.8 software was used to clearly distinguish salt. then, principal component analy...

Abstract Frequency-doubled light at 532 nm from the microchip Nd:YVO 4 lasers is a promising candidate to replace widely used He-Ne in length metrology due their superior characteristics, low-cost and rugged structure. In this paper, spectral characteristics of commercial laser are investigated. The temperature initially controlled facilitate study longitudinal mode structure different pumping ...