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In this paper, we assess the extent of environmental pollution in terms of PM2.5 particulate matter and noise in Tikrit University, located in Tikrit City of Iraq. The geographic information systems (GIS) technology was used for data analysis. Moreover, we built two multiple linear regression models (based on two different data inputs) for the prediction of PM2.5 particulate matter, which were based on the explanatory variables of maximum and minimum noise, temperature, and humidity. Furthermore, the maximum prediction coefficient R2 of the best models was 0.82, with a validated (via testing data) coefficient R2 of 0.94. From the actual total distribution of PM2.5 particulate values ranging from 35–58 μg/m3, our best model managed to predict values between 34.9–60.6 μg/m3. At the end of the study, the overall air quality was determined between moderate and harmful. In addition, the overall detected noise ranged from 49.30–85.79 dB, which inevitably designated the study area to be categorized as a noisy zone, despite being an educational institution.
Mohammed Hashim Ameen; Huda Jamal Jumaah; Bahareh Kalantar; Naonori Ueda; Alfian Abdul Halin; Abdullah Saeb Tais; Sarah Jamal Jumaah. Evaluation of PM2.5 Particulate Matter and Noise Pollution in Tikrit University Based on GIS and Statistical Modeling. Sustainability 2021, 13, 9571 .
AMA StyleMohammed Hashim Ameen, Huda Jamal Jumaah, Bahareh Kalantar, Naonori Ueda, Alfian Abdul Halin, Abdullah Saeb Tais, Sarah Jamal Jumaah. Evaluation of PM2.5 Particulate Matter and Noise Pollution in Tikrit University Based on GIS and Statistical Modeling. Sustainability. 2021; 13 (17):9571.
Chicago/Turabian StyleMohammed Hashim Ameen; Huda Jamal Jumaah; Bahareh Kalantar; Naonori Ueda; Alfian Abdul Halin; Abdullah Saeb Tais; Sarah Jamal Jumaah. 2021. "Evaluation of PM2.5 Particulate Matter and Noise Pollution in Tikrit University Based on GIS and Statistical Modeling." Sustainability 13, no. 17: 9571.
In this paper, we test the effect of the Sun attraction on the orbital elements of the Sun-synchronous satellites in emulation motion by the Celestial Mechanics software system module. SATORB (Beutler,2005) With satellite parameters that move in the Sun-synchronous orbit (shown in Table 1.) were used to study the effect of the perturbation on the orbital elements for a satellite with period 360 days, we studied periodic perturbation in semi-major axis (a), the eccentricity (e), inclination (i) and the sigma of Sun-synchronous satellites when eccentricity (e) = 0 and = 0.2. We founded the effect of solar radiations on orbital elements (semi-major axis (a), inclination (i), eccentricity (e), sigma) of a satellite are more when eccentricity (e) = 0.2, that is mean the effect of the force of solar radiation affected by the eccentricity of the orbit.
Qayssar Mahmood Ajaj; Abed T. Jasim; Mohammed Hashim Ameen; Nabaz Yaseen Ezzulddin. The effect of sun attraction on Sun-Synchronous satellites orbits. Materials Today: Proceedings 2021, 1 .
AMA StyleQayssar Mahmood Ajaj, Abed T. Jasim, Mohammed Hashim Ameen, Nabaz Yaseen Ezzulddin. The effect of sun attraction on Sun-Synchronous satellites orbits. Materials Today: Proceedings. 2021; ():1.
Chicago/Turabian StyleQayssar Mahmood Ajaj; Abed T. Jasim; Mohammed Hashim Ameen; Nabaz Yaseen Ezzulddin. 2021. "The effect of sun attraction on Sun-Synchronous satellites orbits." Materials Today: Proceedings , no. : 1.