In this paper the explicit (“obvious”) relation between mean effective gain of an antenna and its radiation efficiency has been pointed out. Introduction The user equipment (UE) is a vital element in UMTS networks which performance has a critical bearing on the overall system performance. In fact UE exhibiting poor performance will have a negative effect on the link quality, giving rise not onl...

To the Editor:—I have concern about the article entitled “Performance Characteristics of Five New Anesthesia Ventilators and Four Intensive Care Ventilators in Pressure-support Mode: A Comparative Bench Study,” which appeared in the November 2006 issue of ANESTHESIOLOGY. Several statements made in the article are incorrect, and we appreciate an opportunity to set the record straight. In table 1...

cement production is an energy-intensive process, so that the cement industry occupies a top position among other energy-consuming industries. among the equipment used in cement industries, boilers are one of the energy-consuming equipment. boilers are among the common heating equipment in industrial, commercial, and institutional facilities. in this paper, the performance of thermal oil boiler...

Purpose This paper aims to overcome the inability of both comparing loss costs and accounting for production resource losses Overall Equipment Effectiveness (OEE)-related approaches. Design/methodology/approach The authors conducted a literature review about studies focusing on approaches combining OEE with monetary units and/or issues. developed an approach based Cost Loss (OECL), introducing ...