This paper introduces a model to make decision on the maintenance of a mechanical component subject to condition monitoring. A stochastic model is used to determine what maintenance action should be taken at a monitoring check and the follow up inspection times. The condition of component has a stochastic relation with measurements. A new state space model is developed and used, to predict the ...

university websites play an important role in disseminating educational and research information to universities. they are a vital port for accessing the universities' scientific information for researchers, faculty members, and students. the goal of this study was to compare evaluation methods such as web assessment index (wai), web quality evaluation method (webqem), and webometrics for evalu...

Condition monitoring is the foundation of a condition based maintenance (CBM). To relate the information obtained from the condition monitoring to the actual state of the system, it is usually required a stochastic model. On the other hand, considering the interactions and similarities that exist between CBM and statistical process control (SPC), the integrated models for CBM and SPC have been ...

the aim of present article is to review social classes and forces(political and economic ) situation in iran 1981-2001.the writer explained the discussion. by relative relying on poulantzas theory, this discussion indicates that in mentioned years, some groups, such as commercial and traditional middle class , because of enjoying political and economic resources were stronger than other strata ...

Nonscattering optical anapole condition is corresponding to the excitation of radiationless field distributions in open resonators, which offers new degrees freedom for tailoring light-matter interaction. Conventional mechanisms achieving such a relies on sophisticated manipulation electromagnetic multipolar moments all orders guarantee superpositions suppressed moment strengths at same wavelen...