introdouction: the mapping of ghost images of the maxilla and the nasal cavity, which are complex structures, is very important. the position of objects that create a ghost image can differ when using various devices. the purpose of this investigation was to study the mapping of ghost images of the maxilla and the nasal cavity using a cranex d digital panoramic machine. materials and methods: t...

a 79 year old fanner referred to a dental clinic because of toothache for one week. after extraction of a painful tooth, three larvae, 1.5 cm in length emerged from the dental cavity. morphological study of the larvae proved them as w. magnifica. this is the first report of dental cavity myiasis from iran.

This paper describes a full-scale, flexible test vehicle designed and built by the original equipment manufacturer (OEM) to validate the aerodynamic and mechanical performance of large compressors for a variety of applications. This paper provides a description of the test vehicle as well as mechanical and aerodynamic performance data gathered during testing of the vehicle.

The steady and unsteady aerodynamic behaviour of a sailing yacht is investigated in this work by using full-scale testing on a Stewart 34. The aerodynamic forces developed by the yacht in real time are derived from knowledge of the differential pressures across the sails and the sail shape. Experimental results are compared with numerical computation and good agreement was found.

abstract : before initiating any endodontic therapy, probability of extra canals should be considered. the incidence of three canals in mandibular second premolar has been reported to be 0.46-0.5%. the present report describes nonsurgical endodontic treatment of three mandibular second premolars with three canals. in these cases, three orifices were located in mesiobuccal, distobuccal and lingu...

This paper presents an investigation of the aerodynamic influence rim seal purge flow injection on main in a 1.5-stage turbine with non-axisymmetric end walls and bowed stator using experimental measurements unsteady RANS simulations. The study focuses secondary vortex structures formed rotor passages axial rig. Through performance map measurements, it was found that efficiency gain configurati...