Lee, Young, Reddish, Lough, and Clayton (1983) reported that the timing control of jumping and vertically punching a dropping ball exploits the inverse of the rate of change of optical expansion, tau(r). We raise a number of methodological and logical criticisms against their experiment and conclusions and attempt to rectify them by examining elbow joint angles only, in seated punchers, under b...

This paper presents an application of the SingleMinute Exchange of Die (SMED) methodology to a turret punching machine in an elevators company, in Portugal. The work was developed during five months, in the ambit of a master thesis in Industrial Engineering and Management. The Lean Production tool SMED was applied to reduce setup times in order to improve the production flexibility of the machi...

OBJECTIVE The aim of this study was to test whether alexithymia mediates the relationship between childhood maltreatment and self-injurious behaviors (SIB) in college women. METHOD The sample was comprised of 100 female undergraduate students. Measures were the Childhood Trauma Questionnaire [D. Bernstein, L. Fink, Manual for the Childhood Trauma Questionnaire, The Psychological Corporation, ...

Punching shear is the most common failure mechanism of slabs that are supported directly on columns. The slab–column connection always vulnerable to critical punching shear; thus, it necessary investigate effect various parameters behavior flat slabs. This work presents an experimental study evaluate level prestressing force and layout strands in terms maximum load, deflection, stiffness, ducti...