amr_hassanegypt

Amr Hassan Moustafa Ahmed

Assistant Professor - Assistant Professor

Faculty of science

Address: Al-Iman Tower, Al-Sharaieh Street, behind the university's dormitory for girls' students, Nasser City - Sohag

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Publications Which contain the keyword: Stereo M

3. Environmental impacts: Weathering factors, mechanism and forms affected the stone decaying in Petra

2018-09-16 09:31:35 Keywords Petra, weathering, PM, Stereo M, XRD, SEM,
3. Environmental impacts: Weathering factors, mechanism and forms affected the stone decaying in Petra
The decay of stones in a natural environment is governed by extrinsic and intrinsic factors. Petra is exposed for centuries to the severe climatic conditions especially temperature (T), total monthly rainfall (TMR) and relative humidity (RH). In this regard, there are negative effects that result from these climatic elements on stone; which affect or are based on the chemical characteristics ... Read more

21. Air pollution and aspects of degradation "Umayyad Liwãn-Amman citadel as a case study"

2018-09-16 10:22:52 Keywords Air pollution, Pollutants, Decomposition, TSP, Stereo M\, Stereo M, ICP-OES,
21. Air pollution and aspects of degradation "Umayyad Liwãn-Amman citadel as a case study"
Many natural stone monuments have suffered from serious damages that due to natural weathering, pollution and other factors of deterioration and using insufficient maintenance of susceptible materials or inappropriate conservation. Considerable attention has been paid in recent years to the decay of carbonate building stones [Limestone and Marble] especially in aggressive polluted environments, moreover, color changes, patina, blacking of rock's ... Read more

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