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The last stage endured on obvious erosion especially the front and the end of the blade . The erosion caused the appearance some cracks in this place. These remarks coincided with the theoretic al results , which were acquired according to the con dition of the turbine of station which showed that the droplet , which collided with the blade ends, caused high pressure on the surface of the blade and caused the occurrence of the corrosion . The danger of the erosion unavoidable due to its relationship with tae station efficiency and the only to avoid that is the use of the blade made of erosion resistance ingots .
The importance of this scientific research stems from the increasing demand for building materials, especially the materials involved in concrete industry. The attention was directed towards finding alternative locations for primary oresin addition to the process of reconstructing old mines as the continues inequitable taking of these materials will eventually result in wasting those resources losing them before using them in an economical suitable way. We have defined the hope positions in the areas of Banias and Tartous. We can say that deterioration of volcanic products in those areaswas a direct result of suitable climatic circumstances which were predominant (weathering process, deterioration, physical erosion, and chemical like wetness, wind, rain, temperature, and surface water streaming). The tectonic which attacked those formations later served to boost the weathering and erosion degree so that it became more effective for the production of some oxides such as (calcium oxide, iron oxide, aluminum oxide, deterioration of rock components, and concentration of clay) asplain strataof clay deterioration according to geochemical analyses conducted in this research.
The Syrian steppe occupies an area of about ١٠ millions hectares representing ٥٥٪ of the country. Due to the relatively high rainfall averages the steppe is known as one of the best grazing areas in the Arab World. This picture however has been ch anged in the recent decades due to the expansion of rainfed barley cultivation and consequent destruction of the natural shrubby cover by tillage. Other reasons leading to land degradation is the steppe overgrazing and shrub cutting for fuel . High soil erodibility is caused by the week structure and light texture of the soils of the steppe. As a result wind erosion became a prevailing process in the steppe. This phenomenon was remarkably accelerated during the last decade. Dust, dust storm, sand accumulation on roads, railroads, villages houses, formation of sand sheets with different thickness and sand hummocks around shrubs were the main environmental features consequences.
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