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Showing 3 results for Evolution

Mrs Masooume Darmani, Mohammad Nohtani, Haydeh Ara, Ali Golkarian, Salman Sharif Azari,
Volume 18, Issue 51 (6-2018)
Abstract

One of the most important processes of erosion and sediment transport in streams is the river most complex engineering  issues.this process special effects on water quality indices, action suburbs floor and destroyed much damage to the river and also into the development plans  Lack of continuity sediment sampling and measurement of many existing stations. due to the low number of hydrometric stations in Iran and the lack of continuity of sediment sampling and measuring in many existing stations, on one hand the exact amount of sediment load in many rivers in the country is not available and because of differences in climatic, hydrological and topographical conditions in the country, on the other hand, the preparation and calibration of sediment Erosion Models different regions, is unavoidableCalibration models of erosion and sedimentation in different locations is difficult and requires financial capital andthe time . the But evolutionary optimization algorithm able to resolve this problems of mathematical and experimental methods in this paper, a new optimization algorithm spiders can be made to education And the evolutionary pattern for input (discharge and precipitation) and rain-gauge gauging stations and Watershed Kardeh designated evolutionary algorithms and artificial network performance for 24 year 24-year dam catchment Kardeh for the period studied. In conclusion, the results proved that social spiders optimization algorithm t better resultspredic to for sediment in watershed Kardeh


Mehran Motamedi, Zarin Fakhar,
Volume 22, Issue 64 (3-2022)
Abstract

The present article is an analysis of the formation and evolution of the city of Songhor in Islamic times. This research is descriptive-analytical in terms of purpose and method. And to collect the required data and information, library-documentary studies and field visits (observation, testing and interviewing) were used. Among the archaeological evidence and historical documents examined in this study include: pottery, gravestones of medieval Islamic times, religious and non-religious architecture, and springs and sanctuaries. Its field data is recorded and classified by time period. Reading and reviewing historical and archeological information related to the city of Songhor reveals the cultural and historical identity of the city during the Islamic period. The results show that Songhor city is based on fundamental elements such as: the mosque, government building, monuments, traditional market, neighborhoods and city fence which during Islamic history are related to specific hierarchy in relation to social, economic needs. Religious, political and city fix
they did. The presence of these elements in the city has made historical references to the city of Songhor with the names such as "Velayat and Fence", "Mahal", "Alkai" and "Qasaba".
Mohammad Ali Jamalizadeh, Abbas Masoudi,
Volume 25, Issue 76 (3-2025)
Abstract

Ancient cities have always had a fundamental difference from today's cities, a difference that was well felt in their body and overall structure, in such a way that they can be well distinguished from today's cities. This difference, which is itself influenced by economic, political, cultural and social conditions, has had more or less changes in the structure of cities, can represent two types of city growth. Organic growth is a continuous and clear growth that made the form subservient to its function, and in contrast to that, the dark and discrete form of the global cities of the modern era. This project has tried to answer the question of whether it is possible to use the characteristics and the way of formation of ancient cities in today's world by studying the shape of the city throughout the past history until today. Or at least, is it possible to achieve a favorable result from the integration of some characteristics of these cities with today's cities? Based on this, in this project, the form of cities from the past to the present during three historical periods before Islam, after Islam and the modern era, and on the other hand, limiting the issue to the way of establishing government centers in the central desert of Iran using the comparative method- Induction has been discussed according to the assumptions of the research. The results showed that the first and second hypotheses have worked more effectively in more unsuccessful experiments, and on the other hand, the third hypothesis has worked more colorfully in more successful experiments, and on the other hand, since the degree of realization of the third hypothesis in the experiment Kerman's success rate is 0.100 and in unsuccessful experiences it is 0. Perhaps this hypothesis can be considered as a relatively superior and preferable hypothesis to check the success rate of related projects.

 

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