the aim of this paper is to examine and analyze the spatial distribution of population in cities of the southern coastal region of iran by using common models and techniques in the field and to study the trends of evolution in a time period of 40 years (1345-1385). models used in the study can be classified into three main groups. the first group is the primate city indexes (including jefferson...

The research on the grid size suitability is important to provide improvement in accuracies of gridded population distribution. It contributes to reveal the actual spatial distribution of population. However, currently little research has been done in this area. Many well-modeled gridded population dataset are basically built at a single grid scale. If the grid cell size is not appropriate, it ...

Abstract Sports administrators must do an excellent job of preparation before the game. The goal is to keep game safe. This paper uses BP neural network establish danger warning system for sports competitions. aim reduce probability dangerous incidents in Then this determines relevant evaluation indexes risk mode competition activities. Finally, makes empirical study model events. results show ...

the basic purpose of the fulfillment this research has been the appointment of economical evaluation indexes of aqua-agriculture reservoirs in golestan province. the method of information gathering in this research has been in way survey and in method census from 42 of aqua-agriculture reservoirs that information necessary to complete questionnaire has prepared. result showed the highest and lo...

abstract drastic precipitations in unmorally times always are one of the important factors that created abundant damages in different geographical areas. in this research, three precipitations that occurred in summer 2009 in mashhad were investigated. the investigation of variation graphs of meteorological parameters show significant decreasing of air pressure and temperature and increasing of ...

Index preparation is a tedious and time-consuming task. This paper indicates how the indexing process can be automated in a way that is largely independent of a specific typesetting system and independent of the format being used. Fundamental issues related to this process are identified and analyzed. Specifically, we develop a framework for placing index commands in the document. In addition, ...

A three-year study was conducted in search of a better method of teaching physiology that would enhance the critical thinking skills of first-year nursing students in Istanbul University, Florence Nightingale College of Nursing. Three different methods of teaching were used: 1) a straight lecture method, 2) an active method with no previous preparation of students, 3) an active method with prev...

assessing financial performance is one of the most important in functional domains, because financial information is considered for the basis of making decisions. organizations use various indexes for assessing performance in quantitative techniques. although these sorts of assessments provide useful information, but the comprehensive concept will never be concluded because of considering all t...