نتایج جستجو برای: road density
تعداد نتایج: 478599 فیلتر نتایج به سال:
Soil erosion and its consequences are important factors in forest road network management. Cutslopes are the most important source of making sediment among different parts of the forest roads structure. For this research, a new and bare road in district No. 2, series No. 5 of NekaChoob forest, was selected; then the study data was measured. The study design was a completely randomized design in...
Disease clusters were retrospectively explored at national level using a geo-referenced dataset from the 2001 Uruguayan Foot-and-Mouth Disease (FMD) epidemic. Disease location and time (first 11 epidemic weeks) were analysed across 250 counties (of which 160 were infected), without and with control for human mobility related factors (human population and road densities). The null hypothesis of ...
This paper is concerned with the e cient reconstruction of illumination from area luminaires. We outline a 2-pass scheme; a lightpass, tracing ray bundles from the luminaires followed by a general eyepass ray trace phase. Special attention is paid during the rst pass to the reconstruction of shadows, both umbral and penumbral regions, for general luminaire geometries with no practical restricti...
Road traffic information has been a primary source for traffic management, user services and other systems that enable road congestion prevention and control; however, road traffic information has not been adequately exploited as a part of the design for wireless communication network. In vehicular ad-hoc networks, the protocol design must consider the dynamic nature of the topology and the pro...
The current study used habitat suitability index to evaluate habitat suitability of Servak forested area located near Yasouj for the Persian squirrel. Habitat variables including elevation, slope, aspect, density of vegetation cover, height of tree, tree diameter, canopy area of tree, distance to roads, distance to villages, and distance to rivers were used in this evaluation. Results showed th...
In order to estimate proper current land price, various factors such as environment, communication, regulation of land use and so on are established by local government. Road slope is one of the land price factors for land form, and land price is corrected by road slope aspect based on road slope for the north. For example, road slope aspect is corrected so that land price face to northern slop...
As an important factor to be considered, rapid population growth, lack of resources and appropriate management has led the natural hazards threatening human societies increasingly. Although it is impossible to eliminate the effects of natural hazards, however, risk reduction and risk cities against natural phenomena has become the main topics of urban planning and design in recent years. Iran i...
Throughout their recent recovery in several industrialized countries, large carnivores have had to cope with a changed landscape dominated by human infrastructure. Population growth depends on the ability of individuals to adapt to these changes by making use of new habitat features and at the same time to avoid increased risks of mortality associated with human infrastructure. We analyzed the ...
The presented study compares three alternative straight-line approximations of the longitudinal road-profile power spectral density (PSD). The one straight line and two and three split straight-line approximations were analyzed. The minimizing of the root-meansquared error (RMSE) was used as criteria of goodness of fit for the approximation models. The statistics of the PSD approximation model ...
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