the problem which has been the focus of city constructors and architectures since the beginning of citizenship life is the issue of the nature of environmental quality. this study, with a review of explaining paradigms of environmental quality and by reliance on basic works, has assumed the question of nature of environmental quality an interdisciplinary concept (civic construction, sociology, ...

what features and advantages does the prophet have which distinguish him from others? to answer this question, the writer names three approaches: 1. epistemical approach, 2. responsibility approach, and 3, situational approach. in the first approach, he examines various viewpoints which all view divine knowledge (ma‘rifat) as the prophet's distinctive feature. in the second approach, the s...

The purpose of this article is to show the importance of mission planning in a fully automatic flight and the critical role of implementing Sense & Avoid (S&A) procedures at different categories of UAVs. Modern operation of UAVs implies the capability to handle separation provision and collision avoidance in a way similar to the manned aircrafts. The main contributions are: the analysis of the ...

the form and morphology criteria are among  effective components in enhancement and improvement of urban environments and one of the features of successful urban spaces, is the way these criteria are arranged alongside each other especially at the visual landscape of an entrance space, because entrance of every place is the first and most important communication ring between the person and the ...

salinity is one of the most important limiting factors for crops, because of most agronomic and horticultural crops are sensitive to salinity. on the other hands, considerable lands of the world were affected by salinity and they are increasing day by day. an experiment was conducted with five levels of irrigation water salinity in soilless culture and greenhouse condition to evaluate the effec...

The images recently sent by the Cassini spacecraft mission (on the NASA website http://saturn.jpl.nasa.gov/photos/halloffame/) show the complex and beautiful rings of Saturn. Over the past few decades, various conjectures were advanced that Saturn's rings are Cantor-like sets, although no convincing fractal analysis of actual images has ever appeared. Here we focus on four images sent by the Ca...