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

Effect of seaweed extract on the growth of Phaseolus vulgaris L.

208-210Effect of extracts from seaweeds, adina tetrastromatica and Sargassum tenerrimum, on the growth of common bean (Phaseolus vulgaris) has been studied. At low concentration (10%) the extracts promote good growth and the extract from Padina, sp. induces good response than that of Sargassum sp

Occurrence of Hydroclathrus tenuis Tseng & Baoren, (Phaeophyta) from Gulf of Kutch, northwest coast of India

277-279Hydroclathrus clathratus (C. Agardh), a marine brown alga was considered to be a monotypic, till H. tenuis Tseng & Baoren was reported during 1983 from south China Sea. Recently the same alga was noticed to be abundant from Kalubhar Island in the Gulf of Kutch (India), during February-March 1994. A few ecological and relevant taxonomical observations made on the alga have been described here, which is incidently the first record from the Indian Ocean

<i>Coeloseira compressa</i> hollenb. (Champiaceae, Rhodophyta) - A new marine algal species from Goa, India

37-41Occurrence of a red algal species Coeloseira is recorded from Bambolim coast, Goa along the central west coast of India. The genus is characterised by the presence of polysporangia, stoloniferous pattern branching, separate secondary branches and a group of apical cells. Habitat characteristics are also reported

Chemical composition of marine macrophytes and their surrounding water and sediments, from Minicoy, Lakshadweep

123-125Among the marine algae studied, Herposiphonia spp showed highest concentration of nitrogen (6.55%). In seagrasses, Cymodocea rotundata was rich in nitrogen (6.19%) and organic carbon (30.8%). In general seagrasses were rich in the major elements compared to marine algae. The coastal waters around Minicoy showed high concentrations of Na, K and Mg compared to Ca

Comprehensive bearing condition monitoring algorithm for incipient fault detection using acoustic emission

The bearing reliability plays major role in obtaining the desired performance of any machine. A continuous condition monitoring of machine is required in certain applications where failure of machine leads to loss of production, human safety and precision. Machine faults are often linked to the bearing faults. Condition monitoring of machine involves continuous watch on the performance of bearings and predicting the faults of bearing before it cause any adversity. This paper investigates an experimental study to diagnose the fault while bearing is in operation. An acoustic emission technique is used in the experimentation. An algorithm is developed to process various types of signals generated from different bearing defects. The algorithm uses time domain analysis along with combination low frequency analysis technique such as fast Fourier transform and high frequency envelope detection. Two methods have adopted for envelope detection which are Hilbert transform and order analysis. Experimental study is carried out for deep groove ball bearing cage defect. Results show the potential effectiveness of the proposed algorithm to determine presence of fault, exact location and severity of fault