The marshes of southern Iraq are among the most important and largest wetlands in the Middle East and the world are characterized by the freshness of their waters and their environmental diversity. The marshes have undergone many changes during the past decades and to discover and study these changes, remote sensing data will be used as sources of information and data in this study represented by the Landsat 8 satellite images (OLI), the images were collected for years from 2013 to 2019, and by applying remote sensing techniques and geographic information systems techniques, changes in Al-Hammar marsh were detected during the past seven years, the supervised classification method (maximum likelihood) was applied to classify the region Were identified six main categories of the land cover (deep water, shallow water, small cane, large cane, plant, soil) using the software (ENVI 5.3), the final maps were produced for classification using (ArcGIS 10.4.1) software, the results showed Significant change in the water content of Al-Hammar marsh and the increase in the proportion of flooding during the year 2019 to the highest rate since 2013. In addition, the results showed the accuracy and success of the supervised classification method (maximum likelihood) in the classification of images as they are considered the best classification methods, the fastest and high accuracy.
This research investigates the effect of adding some reinforcing materials,including (nano and micro) titanium dioxide(TiO2)particles with different weight fraction(0.1,0.4,0.7,1,3 and5)% to polymethyl methacrylate (PMMA)and studying some mechanical and physical propertiesof composite material. Specimens’ of this project were prepared using (in-situ) method to form compositematerials. Themechanical tests were performed on these specimens,includingimpact test, thermal conductivity was performed as a physical test.Results of this study showed that the values of impact strength were decreased when adding the (nano-micro) particles in PMMA composite materials, while the values of thermal conductivity weredecreased.
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