today, with the advanced statistical techniques and neural networks, predictive models of distribution have been rapidly developed in ecology. purpose of this research is to predict and map the distribution of tetranychus urticae koch (acari: tetranychidae) using mlp neural networks combined with genetic algorithm in surface of farm. population data of pest was obtained in 2016 by sampling in 1...

Introduction: Due to the effect of radiation on both the tumor and the surrounding normal tissues, the side effects of radiation in normal tissues are expected. One of the important complications in the head and neck radiotherapy is the doses reached to the larynx and spinal cord of patients with non-laryngeal head and neck tumors.   Materials and Methods: ...

Understanding the characteristics of solar magnetic field is essential for interpreting activities and dynamo. In this research, we investigated asymmetric distribution photospheric magnetic-field values, using synoptic charts constructed from space-borne high-resolution magnetograms. It demonstrated that Lorentzian function describes values in much better than Gaussian should reflect gradual d...