nowadays two important discussions in academic parties all over the world are energy crisis and environment crisis. one of the strategies to deal with these crisises is using clean, renewable and domestic energy sources. one of the best renewable energies that can be used in different scales is solar energy. in iran which is considered among the greatest countries that receive huge amount of so...

Astronomical observations of the orbital angular momentum of photons, a property of electromagnetic radiation that has come to the fore in recent years, have apparently never been attempted. Here, I show how measurements of this property of photons have a number of astrophysical applications. Subject headings: Instrumentation: Miscellaneous – Masers – ISM: General – Extraterrestrial Intelligenc...

The survivability of resistant terrestrial microbes, bacterial spores of Bacillus subtilis, was investigated in the BIOPAN facility of the European Space Agency onboard of Russian Earth-orbiting FOTON satellites (BIOPAN I -III missions). The spores were exposed to different subsets of the extreme environmental parameters in space (vacuum, extraterrestrial solar UV, shielding by protecting mater...

Solar energy represents one of the most important renewable sources contributing to transition process. Considering that observation daily global solar radiation (GSR) is not affordable in some parts globe, there an imperative need develop alternative ways predict it. Therefore, main objective this study evaluate performance different hybrid data-driven techniques predicting GSR semi-arid regio...

In the space experiment "Molecular adaptation strategies of microorganisms to different space and planetary UV climate conditions" (ADAPT), bacterial endospores of the highly UV-resistant Bacillus subtilis strain MW01 were exposed to low-Earth orbit (LEO) and simulated martian surface conditions for 559 days on board the European Space Agency's exposure facility EXPOSE-E, mounted outside the In...

the solar radiation received by earth surface is one of the most applicable parameter that is so important in hydrology, agriculture, meteorology and climatological modeling. because of very expensive instrument for measuring the radiation, researchers suggested many different experimental equations to estimate this parameter in different climate. seven models which are calibrated for semi-arid...

Solar radiation has important impacts on buildings such as for cooling/heating load forecasting, energy consumption and multi-energy complementary optimization. Two types of solar data are commonly used in buildings: typical meteorological years measured from stations, both which historical data. However, it is difficult to predict the hourly global radiation, affects application relevant predi...

the use of satellite data in an estimation of air temperature (ta) near the earth’s surface has turned into an effective way for a large area of high spatial and temporal resolution. throughout the present study, artificial neural network (ann) as well as m5 model tree were employed to estimate ta in khuzestan province (south west of iran), using satellite remotely sensed land surface temperatu...

Originally, the goal in the search for extraterrestrial intelligence (SETI) was to detect the existence of extraterrestrial life by their radio frequency (microwave) emissions [1]. More recently its scope has expanded to include the search for extraterrestrial intelligence at optical frequencies [2], and the search for extraterrestrial artifacts (SETA) in our solar system [3, 4]. This paper is ...