نتایج جستجو برای: artificial urban signs
تعداد نتایج: 554138 فیلتر نتایج به سال:
Installation of impervious surfaces in urban areas has attracted increasing attention due to its potential hazard to urban ecosystems. Urban soils are suggested to have robust carbon (C) sequestration capacity; however, the C stocks and dynamics in the soils covered by impervious surfaces that dominate urban areas are still not well characterized. We compared soil organic C (SOC) densities and ...
This is the first part of a two-paper series elaborating the development of a cellular automaton model of urban development using GIS and fuzzy set approaches. Under the paradigm of fuzzy set theory, this paper develops a cellular automaton model of urban development based on an understanding of the logistic trend of urban development processes. The model delimits urban areas as multiple states...
One of the most important natural factors and critical facilities in Tehran is presence of AlborzSlopes River-Valleys which have been considered as natural tourist places for citizens since a long time ago, especiallyin hot summers and play effective role in creating a balance between manmade and natural spaces. Importance ofthese river-valleys as ecological pathways is enhanced with the increa...
The concept of "gentrification" is becoming an important and widespread phenomenon in most of the world's cities, both developed and developing. Consequently, many people have forcibly left their places or have lived at a higher cost. Therefore this phenomenon has become one of the most controversial issues of urban studies in recent years and can be analyzed as an influential and underlying fa...
Due to urbanization and population increase, need for metro tunnels, has been considerably increased in urban areas. Estimating the surface settlement caused by tunnel excavation is an important task especially where the tunnels are excavated in urban areas or beneath important structures. Many models have been established for this purpose by extracting the relationship between the settlement a...
Self-adaptive systems need to be designed with respect to threats within their operating conditions. Identifying such threats during the design phase can benefit from the involvement of stakeholders. Using a system model, the stakeholders, who may neither be IT experts nor security experts, can identify threats as a first step towards formulating security requirements. To support it, the modeli...
During the 1995 outbreak of Ebola hemorrhagic fever in the Democratic Republic of the Congo, a series of 103 cases (one-third of the total number of cases) had clinical symptoms and signs accurately recorded by medical workers, mainly in the setting of the urban hospital in Kikwit. Clinical diagnosis was confirmed retrospectively in cases for which serum samples were available (n = 63, 61% of t...
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