MEASURING THE PROCESS EFFICIENCY OF CONTROLLED WELDING PROCESSES

This The process efficiency in Seem and Arc Welding is a crucial input to Mathematical models of the process and requires the use of an accurate welding calorimeter. In this paper we compare a liquid nitrogen calorimeter with an insulated box calorimeter for measuring the process efficiency of Fronius CMT, Lincoln STT and Rapid Arc, Kemppi FastRoot and standard pulsed GMAW. All the controlled dip transfer processes had a process efficiency of around 85% when measured with the liquid nitrogen calorimeter

Body mass index and risk of pancreatic cancer in a Chinese population

10.1371/journal.pone.0085149PLoS ONE91-POLN

Biochemical changes in mangrove foliage during growth and decomposition

104-106Biochemical changes during 5 developmental stages of mangrove foliage and subsequent decomposition resulting into detritus have been studied, taking into consideration the nutritional value of foliage. Carbohydrate and lipid decrease during growth and decomposition of the two species (Rhizophora mucronata and Avicennia officinalis). Protein values, on the other hand show a gradual increase probably as a result of microbial colonization and thus enhancing the nutritional value of detritus. C:N ratio in general shows a downward trend in different stages of mangrove foliage