the purpose of this study was to compare the apical seal mof thermafil with lateral and vertical condensation techniques in mesiobuccal root of maxillary first molars. 245 upper first molarteeth were extracted.among them 40 teeth  were selected having 20-25 degrres of curve(according to schnider analysis) in apical one their of their mesiobuccal roots.these teeth were also selected so that the...

the mechanism of flow and sediment transport in channel bend is much complex. because of secondary current, the sediment moves away from outer bank toward inner bank and therefore outer bank of the bend is one of best positions for lateral diversion. in this paper, the mechanism of sediment transport was simulated with ssiim software in the u shape channel with lateral intake. in order to verif...

Background and aim: Considering the widespread development of implants in dental treatment plans, linear measurements on panoramic radiography are of especial importance. In the present study we investigated the effect of head misalignment up to 15° around vertical and horizontal axes on the magnification rate of digital panoramic radiography in each part of upper and lower jaws. Materia...

b = vortex spacing l = lateral displacement N = Brunt–Väisälä frequency q = root-mean-square turbulence velocity t = time u = axial velocity v = lateral velocity, vertical displacement V = aircraft ground speed w = descent speed, vertical wind velocity x = axial coordinate y = spanwise coordinate z = vertical coordinate = circulation = eddy dissipation rate = potential temperature = standard de...

White and Brown (1939) found the following distribution in 1,062 cases : uncomplicated lateral deviation in 347 patients, uncomplicated vertical deviation in 358, and combined vertical and lateral deviation in 357. Dunnington and Regan (1950) found that 50 per cent. of 79 cases of concomitant convergent strabismus showed a vertical component. Scobee (1951), in 457 cases of convergent strabismus...

White and Brown (1939) found the following distribution in 1,062 cases : uncomplicated lateral deviation in 347 patients, uncomplicated vertical deviation in 358, and combined vertical and lateral deviation in 357. Dunnington and Regan (1950) found that 50 per cent. of 79 cases of concomitant convergent strabismus showed a vertical component. Scobee (1951), in 457 cases of convergent strabismus...

In recent years, the production of oil and gas has been developed in deep water depths which exceed 500m. Deep water developments are being followed strongly in different parts of the world (Caspian Sea, Gulf of Mexico, etc.). The movement of floater causes severe stress at the touchdown point (TDP) in steel catenary risers (SCR). The main objective of this study was to simulate the exact behav...