جستجوی مقالات مرتبط با کلیدواژه « improvement » در نشریات گروه « برق »

Urban population growth and widespread environmental changes and concrete landscapes have driven many elements of the metropolis closer to exhaustion. This changed the appearance and body of the city, causing the erosion of urban space and urban activities. The purpose of the study is to evaluate the improvement and renovation projects in Yazd city with tourism approach. This study uses observations and literature research of Yazd city, collection of information and statistics, review and evaluation of improvement and modernization plans, and interviews and questions from relevant experts and residents living in Yazd. The area investigated in this study is the city of Yazd, where there are over 4,000 hectares of used textiles in Yazd province, of which about 2,600 hectares are located in the historical city of Yazd, and the rest in the historical Neighboring city of Yazd. The main problem of the quality of life in these areas is the lack of social dignity in other urban areas, although the extent of benefiting these areas from urban services is comparable to other city centers. Also, in urban services, the worn-out fabric is the wear and tear of facilities, especially the accesses, because in the network of connecting roads, the worn-out fabric of the roads must communicate with other urban areas and is important for tourism in this city. These axes are well-suited in a dynamic environment, catering to the needs of tourists visiting the city. Yazd city's strong points, such as the abundance of historical and tourism elements, its central and accessible location, the promotion of culture through its historic neighborhoods, and its potential for development, contribute to its appeal for tourists. Consequently, these factors generate a wide range of uses that cater to the preferences and requirements of incoming tourists to the city.

3D mesh simplification is an important challenge in various fields. While different simplification methods have been proposed in recent years, the focus has shifted to keeping properties such as ridges and valleys along with mesh simplification. While most of the proposed models have used curvature, some challenges exist, such as the computational complexity and sensitivity to the neighborhood size. The latter can be solved by averaging several neighborhoods. This paper proposes a simple yet fast method with less sensitivity to the neighborhood size. To this end, we use the normal vector and the parameters of a probability distribution of its variations to detect the elevations, depressions (geometrical changes), and curve parts. We combine this method with the Quadric Error Metric (QEM) method to produce a hybrid method for 3D mesh simplification, preserving its elevations and depressions. Evaluation results show that our method has a lower error than the other methods.