عصمت
علیشاهی
مدرس آموزشکده معدن نهبندان، خراسان جنوبی
author
محمد حسین
زرینکوب
دانشگاه بیرجند
author
text
article
2015
per
Researches in Earth Sciences
Shahid Beheshti University
2008-8299
6
v.
1
no.
2015
1
18
https://esrj.sbu.ac.ir/article_95503_82092e796a411c2f9c332584fe19f3e2.pdf
ارسلان
بخشی
کارشناس رسوبشناسی مدیریت اکتشاف شرکت ملی نفت
author
محسن
لیاقت
دانشگاه شهید بهشتی تهران
author
امیر
فیضی
کارشناس چینه شناسی مدیریت اکتشاف شرکت ملی نفت
author
text
article
2015
per
Researches in Earth Sciences
Shahid Beheshti University
2008-8299
6
v.
1
no.
2015
19
39
https://esrj.sbu.ac.ir/article_95522_cadf289469f843f390f967ae393437c3.pdf
no
سید سعید
قنادپور
دانشگاه صنعتی امیرکبیر
author
اردشیر
هزارخانی
دانشگاه صنعتی امیرکبیر
author
text
article
2015
per
There are several statistical methodologies presented for separating anomalous values from background leading to determination of anomalous areas. These methods range from simple approaches to complicated ones and include nonstructural and structural methods, subtraction separation method and so on. Structural methods take the sampling locations and their spatial relation into account for estimating the anomalous areas. The U-statistic method is one of the most important structural methods. It considers the location of samples and carries out the statistical analysis of the data without judging from a geochemical point of view and tries to separate subpopulations and also to determine anomalous areas. In the present study, several nonstructural methods including assessment of threshold based on median and standard deviation, median absolute deviation (MAD) and P.N product are used and U-statistic is considered as structural method to assess prospective areas of Parkam district. Results show that MAD method reduced background well and P.N method increased correlation of points. However, U-statistic method plays the role of both mentioned advantages meaning in addition to reducing outlier data effect, it regularizes anomalous values and also their dispersion is reduced significantly. It is possible to determine anomaly areas according to anomalous samples positioning so that denser areas are more important. Finally, lithogeochemical map of study area is provided for copper and molybdenum
Researches in Earth Sciences
Shahid Beheshti University
2008-8299
6
v.
1
no.
2015
40
50
https://esrj.sbu.ac.ir/article_95530_493a5b71d340cbc1bd835ed694f82879.pdf
Typology of evolutionary paths of polycentric urban region of Central Mazandaran
هاشم
داداش پور
دانشگاه تربیت مدرس
author
محمد رضا
حق جو
دانشگاه مازندران
author
مجتبی
شهابی شهمیری
پردیس هنرهای زیبا،دانشگاه تهران
author
text
article
2015
per
The definition of the concept and planning of polycentric urban regions is still one of the vaguest one, in spite of the two decades of the global attempts. Theoretical literature refers parts of this ambiguity to the evolutionary process of the polycentric metropolitan areas in the various regions of the world. In other words, based on their nature and identity, polycentric urban regions like any other phenomena show unique behavior encountering process, trends and issues. Thus, comprehension of this process and evolutionary paths can help planners understand the morphology of poly-centricity, its relations and governance interactions. Accordingly, this study seeks to understand that of which evolutionary paths the polycentric urban region of central Mazandaran follows and in which phases of development it stands. For this purpose, by employing the Champion’s alternative paths for the evolution of polycentric urban regions (2001) and measuring the morphological and functional dimensions of the Central Mazandaran over 30 years, it has become disclosed that despite of the assumptions of network- poly-centricity pattern of Central Mazandaran, the study area consists of four functional urban regions that define the main share of regional trips within their city. Thus, this urban region is determined as a fusion mode of polycentric urban development between the second and third phases in account of dominant centrality absence and the multiplicity and proximity of centers
Researches in Earth Sciences
Shahid Beheshti University
2008-8299
6
v.
1
no.
2015
51
63
https://esrj.sbu.ac.ir/article_95538_fc3d8966918aaa8a886fcb153c587493.pdf
رضا
اسماعیلی
استادیار گروه جغرافیا دانشگاه مازندران
author
محمدمهدی
حسینزاده
دانشیار دانشکده علوم زمین، دانشگاه شهید بهشتی
author
text
article
2015
per
Researches in Earth Sciences
Shahid Beheshti University
2008-8299
6
v.
1
no.
2015
64
79
https://esrj.sbu.ac.ir/article_95552_725e411a2926bce7d4346553ae1a7302.pdf
Structural Changes in the Squares of Tehran
محمد تقی
رضویان
دانشگاه شهید بهشتی
author
زهرا
خدابخشی
دانشگاه شهید بهشتی
author
text
article
2015
per
Abstract Urban squares of Iran have undergone various structural changes from tradition to modernity. These changes have influenced socio-cultural life of urbanites in various dimentions. It is vital to identify the structural features of urban squares in order to manage and implement constructive solutions. The present research investigates the structural changes of urban cities. In order to accomplish this goal, four squares of Tehran city, namely Imam Khomeini, Baharestan, Enghelab, and Azadi Squares are selected as samples for case study. The research methodology is historical-analytic, and documents and field observations were the two data collection methods used. For such a purpose, the structural features and indexes of the square were extracted from different sources and described and analyzed in the four targeted squares. The results show differences in structure between Imam Khomeini and Baharestan squares, which were built during Ghajar rein, on the one hand, and that of Enghelab and Azadi squares, which were built in Pahlavi 1st and 2nd reigns respectively, on the other. The squares of Ghajar period have an amalgamation of traditional and modern elements within and in the body of the square. But the squares of Pahlavi period are far away from the structural features of traditional squares and, thus, are turned into modern squares. Such a trend also continued during the Islamic Republic
Researches in Earth Sciences
Shahid Beheshti University
2008-8299
6
v.
1
no.
2015
80
99
https://esrj.sbu.ac.ir/article_95563_49cfead2518254d7d9a8e58afbbd7d12.pdf
جمیله
توکلینیا
استادیار گروه جغرافیای انسانی، دانشگاه شهید بهشتی
author
مظفر
صرافی
دانشیار گروه جغرافیای انسانی، دانشگاه شهید بهشتی
author
غلامرضا
کاظمیان
استادیار گروه مدیریت دولتی، شهری و کارآفرینی، دانشگاه علامه طباطبایی
author
محمد
شالی
دانشجوی دکتری، جغرافیا و برنامهریزی شهری، دانشگاه شهید بهشتی
author
text
article
2015
per
Researches in Earth Sciences
Shahid Beheshti University
2008-8299
6
v.
1
no.
2015
100
117
https://esrj.sbu.ac.ir/article_95514_389753ba553445113a943bd272abf543.pdf