an efficiency-centred hierarchical model is developed to assess the performance ofwastewater treatment plants (wwtps). specifically, a new treatment performance index (tpi) hasbeen proposed to determine the overall treatment performance of wwtp by analysing the tpivalues and the weights of individual treatment phase for overall treatment performance. threemodules have been developed to examine ...

The structure of a muzzle brake has significant effect on the overall technical performance an automatic weapon. This paper presents multi-objective optimization that enhances performance, is, it increases efficiency and simultaneously decreases noise emanating from rifle upon discharge. A standard impact-reaction was selected as research object. optimal values four structural parameters were e...

Background: Fatigue in the workers reduces the individual's resistance and eventually leads to the lower performance, increased errors and accidents. This study assessed the fatigue, mental workload and the correlation between them, in operating room personnel of Hamadan hospitals, Iran. Materials and Methods: In a descriptive study, the mental workload and its association with fatigue in oper...

This paper investigates how manipulating the face contour would systematically influence inversion effect (i.e., better recognition performance for upright vs inverted upside-down faces) and overall recognition. Experiment 1 (n=144) addressed question of whether affect scrambled faces which have disrupted configural information. Our results revealed that blurring significantly reduced by means ...