after passing more than one decade of appearance of digital libraries in iran, they couldn’t meet their real mission, which is responding to audience needs. surely, this problem is affected by potentially and real factors. so this research wants to recognize resistant factors and driving factors by recourse oriented approach, and then to fit them in integrated model.research method which we app...

in this study an easy, green, efficient and simple approach is reported for the synthesis of some benzothiazole-, benzimidazole- and benzoxazole-2-thiolderivatives. the proposed approach employs the reaction of corresponding aromatic amine with potassium isopropyl xanthate (z11) in the presence of copper sulfate (cuso4) as a catalyst under conventional heating and ultrasonic irradiation. the ad...

The problem of design targets reduction and balancing among subsystems is addressed. A new approach is proposed that aims at reducing the number of targets used to quantify the performance of an engineering system, consisting of several subsystems, using the properties of system norms. The proposed approach also provides a systematic means of balancing the cascaded targets among the constituent...

INTRODUCTION Simple febrile seizures are generalised in onset, last <15 minutes, and do not occur more than once in 24 hours. Complex febrile seizures are longer lasting, have focal symptoms, and can recur within 24 hours. This review only deals with simple febrile seizures. About 2% to 5% of children in the USA and Western Europe, and 6% to 9% of infants and children in Japan will have experie...