BACKGROUND Studies regarding the effect of various methods to increase the surface hardness of Type IV dental stone are not conclusive. Therefore, this study was carried out to evaluate the effect of air drying, micro oven drying and die hardener on surface hardness of Type IV dental stone. MATERIALS AND METHODS A standard metal die was fabricated; polyvinyl siloxane impression material was u...

Physico-chemical characteristics of groundwater Jaitpur tahsil Shahdol district have been studied. Water is an elixir life and it a basic need for all humans. The major sources water are surface groundwater. Groundwater the requirement rural urban areas essential healthy society sustainable development. problem quality acute. possibility contamination due to mixing toxic chemicals, fertilizers,...

This paper deals with finding a generalized median stable matching (GMSM), introducedby Teo and Sethuraman (1998) as a fair stable marriage. Cheng (2008) showed that findingthe i-th GMSM is #P-hard in case of i = O(N), where N is the number of stable matchingsof an instance. She also gave an exact algorithm running in polynomial time in case ofi = O(log logN), and the comple...

Recently, Mandal and Gong [23] refined and analyzed the recursive method by Lempel and Mykkeltveit et al. for generating de Bruijn sequences, where the recursive feedback function is the sum of a feedback function with k-th order composition and a sum of (k + 1) product-of-sum terms. In this paper we first determine the linear complexity of a composited de Bruijn sequence. We then conduct a pro...

bananas are climacteric fruits and controlling ripening is effective in reducing loss. this experiment studied the effect of packaging (plastic bag, edible wax and plastic bag, plastic bag and 2 or 4 g/kg potassium permanganate) over 5 weeks of cold storage on the quality and characteristics of cavendish cultivar bananas. the samples were removed from storage at 8, 16, 24, 32 and 40 days and fr...

roasting is the common shape of pistachio nuts processing and the purpose of this process is to increase the total acceptability of products. the aim of this study was the effects of hot air roasting temperatures (90, 120 and 150°c), times (20, 35 and 50 min) and air velocities (0.5, 1.5 and 2.5 m/s) on textural attributes (fracture force, hardness, apparent modulus of elasticity and compressio...

Studying groundwater quality is crucial for ensuring its safety because it widely used drinking and domestic, agricultural, industrial purposes. Owing to the lack of surface water in Tabuk area Saudi Arabia, here wells are one primary sources drinking, agriculture, industry. Groundwater determined by aquifer characteristics regional geology, extensively influenced both natural anthropogenic act...

INTRODUCTION This study aims to investigate the relationship of water hardness and its calcium and magnesium content with endothelial function in a population-based sample of healthy children and adolescents. MATERIAL AND METHODS This case-control study was conducted in 2012 among 90 individuals living in two areas with moderate and high water hardness in Isfahan County, Iran. The flow-mediat...

pistachio nut is one of the most important export crops in iran. for prevention of rancidity and to ensure good quality, pistachio must be harvested in a short time and be prepared for drying in 24h.the ohadi variety of iranian raw dry pistachio nuts was selected for the experiments. instrumental hardness and sensory characteristics of pistachio nuts such as: flavor , texture and total acceptan...