â  the purpose of this study is investigation of relationship between population dispersion and distribution of services in urban area of yazd city. descriptive-analytic methodology was used in this study according to physical devising housing and urbanization organization. yazd city is comprised of 11urban areas, with areas of 13415 (ha) and 447259 population spatial distribution of population...

In this article, a new censoring scheme is considered, namely, a middle part of a random sample is censored. A treatment for reconstructing the missing order statistics is investigated. The proposed procedure is studied in detail under exponential distribution which is widely used as a constant failure model in reliability. Different approaches are used to obtain point and interval reconstructo...

‎the aim of this paper is to study distribution of ratios of generalized order statistics from pareto distribution. parameter estimation of pareto distribution based on generalized order statistics and ratios of them have been obtained. inferences using method of moments and unbiased estimator have been obtained to develop point estimations. consistency of unbiased estimator has been illustrate...

Since water resources of desert Naein City are very limited, a approach which saves water resources and meanwhile meets the needs of the greenspace for water is to use city’s sewage wastewater. Proper treatment of Naein’s sewage up to the standards required for green space uses may solve some of the problems of green space development of the city. The present paper closely examines available st...

In a municipal solid waste management system, decreasing collection/hauling costs, which consist of 85 % of total disposal expenditure, can be carried out by a route optimization. Thus, a huge amount of economical benefits is getting furnished. If route optimization is performed in solid waste collection/hauling process, due to reductions in “empty miles” negativity, total expenditures will be ...

This paper uses Chinese urban data to investigate two important issues regarding city size distribution: the nature in which cities of different size grow relative to each other, and which distribution is the best approximation of city size distribution. First, we examine how cities of different sizes grow relative to each other. While most empirical literatures suggest that relative size and r...

Following the Smart City views, citizens, policy makers and energy distribution companies need a reliable and scalable infrastructure to manage and analyse energy consumption data in a city district context. In order to move forward this view, a city district model is needed, which takes into account different datasources such as Building Information Models, Geographic Information Systems and r...