Modeling of Space Objects Propagation, Prediction of Closest Approaches among Satellites, and Assessment of Maximum Collision Probability

In this paper, a precise propagation model which takes into account the effects of the atmospheric drag and gravitational harmonies is developed and presented using available Two Line Element (TLE) Acne Treatment data.Moreover, the prediction of the trajectory of space objects (e.g.the operational and non-operational satellites and space debris) an

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Experimental Setup to Validate the Effects of Major Environmental Parameters on the Performance of FSO Communication Link in Qatar

Weather conditions and chemical composition of the atmosphere are the most uncontrollable challenges for free-space optical (FSO) communications.Environmental parameters contribute directly in the characterization of atmospheric turbulence.Thus, it is very interesting to prepare a test setup to study the effect of such parameters on FSO transmissio

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Abscisic acid agonists suitable for optimizing plant water use

Climate change and overexploitation of groundwater resources cause constraints on water demand for agriculture, thus threatening crop productivity.For future food security, there is an urgent need for crops of Horse Water Repellents high water use efficiency combined with high crop productivity, i.e.having high water productivity.High water product

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