نتایج جستجو برای: spatial data structure
تعداد نتایج: 3888508 فیلتر نتایج به سال:
under the influence of recent socio - economic and technological transformation, iranian cities have experienced notable changes in their spatial structures. reviewing the main aspects of morphological change in the city of rasht, this paper attempts to analyze the underlying factors of recent spatial change and how it influenced the conditions of urban life in this city. the main data and inf...
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رشد سریع شهرها و جمعیت شهرنشین به ویژه بعد از انقلاب صنعتی، مشکلات متعددی از جمله مهاجرت های روز افزون روستا- شهری، ساخت و سازهای بی رویه و بی ضابطه، اسراف در استفاده از زمین، گسترش شهر به سمت اراضی کشاورزی اطراف، توزیع و جانمایی نامتعادل کاربری ها در شهر، فقدان تسهیلات و خدمات شهری کافی و دسترسی آسان به آنها، استفاده گسترده از وسایل نقلیه شخصی در سفرهای درون شهری و در نهایت هزینه های بالای زیس...
determining the promising area for ore deposits is one of the most important steps of prospecting in regional scales. there are many different methods for identifying these areas including geochemical and geophysical methods, remote sensing and sophisticated statistical methods. based on the theory of spatial relations between the dispersion pattern of ore deposits and metallogenic provinces, m...
The spatial structure of cities has been one of the influential elements in the development of cities in different periods.In the cities of Iran,the spatial structure of cities is sometimes organic and during the lifetime of cities ,based on the requirements of the times,such as socio_social needs and their religious-religious ideology,and in many cases,this structure is based on programs and g...
The key factor in understanding the forest ecosystems is forest structure. Spatial arrangement and location of trees are both one of the main components of forest stand structure. This study was carried out in Manesht protected area, Ilam province. In order to determine the ecological groups and spatial patterns of indicator species, we used fixed-area plots method. For data collection, 125 squ...
درک الگوی توزیع مکانی ماکروفون خاک بدلیل اثرات آن روی فرآیندهای اکوسیستم بسیار مهم است. لیکن اطلاعات کمی در این خصوص وجود دارد. درمورد تنوع زیستی ارگانیسم ها وجانداران خاکزی که ازاجزای مهم وکلیدی درهرسیستم اکولوژیکی هستند و در بهبود حاصلخیزی خاک و تولیدات زمین وپایداری اکوسیستم ها(ازطریق فرآیندهای بیولوژیک)نقش عمده دارند تحقیقات کمی انجام شده است. این تحقیق جهت بررسی الگوی مکانی پارامترهای تنوع...
Abstract With the rapid growth of population and urbanization since the last century, the complexity and understanding of the spatial organization of the city, as well as the ability to predict urban events in its spaces, have become difficult and in some cases impossible. Karaj metropolis is one of the major metropolitan areas of Iran that has been experiencing rapid population growth and thi...
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According to several types of research, one of the most important issues and principles of sustainable development that urban professionals pay attention to it recently is Just City. One aspect of Justice in cities, spatial justice, has particular significance by Unequal and discordant Expanding in cities regarding creating unequal areas. On the other hand, the urban spatial structure affects t...
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