background: timely access to cardiovascular health services is necessary to prevent heart damages. the present study examined inequality in geographical distribution of cardiovascular health services in iran.   methods: present study is a cross-sectional study conducted using demographic data from all iranian provinces (31 provinces) from 2012 census by the statistics center of iran (sci). the ...

the static strain aging is a phenomenon that can change the mechanical properties of low carbon steels. thus, the static strain aging behavior of low carbon steel wires after drawing process is studied. to do so, the wires are austenitized at different temperatures and cooled in different rates. then the wires are drawn and aged at a specific temperature and time. before and after aging of each...

To save the cost for customers and distribution center is the key issue to survive for distribution centers. The low service efficiency will certainly lead to increased distribution cost. It is a universal concern problem for distribution industry even for logistics industry to improve distribution service efficiency. On the basis of analyzing the characteristics of customer needs and the chara...

Chance theory is a mathematical methodology for dealing with indeterminatephenomena including uncertainty and randomness.Consequently, uncertain random variable is developed to describe the phenomena which involveuncertainty and randomness.Thus, uncertain random variable is a fundamental concept in chance theory.This paper provides some practical quantities to describe uncertain random variable...