BACKGROUND AND AIM: Surgical endodontics may sometimes fail despite using root-end filling materials (REFMs). In this case report, a symptomatic right maxillary first premolar underwent periradicular surgery (PS) for replacing huge rate of amalgam with mineral trioxide aggregate (MTA).CASE REPORT: A thirty-year-old healthy woman attended with the chief complaint of recurrent swelling and absces...

To cope with the pollution norms and an improvement of combustion internal engines, high-quality holes diameters smaller than 145 µm are needed for manufacture fuel injection nozzles. The current practice using drilling by electro-discharge machining nozzles is limited in terms size hole it can efficiently produce time required drilling. In addition, cost tool high. This paper presents investig...

OBJECTIVES To assess the importance of 2 variables, transducer tip diameter and resection of the round window (RW) niche, affecting the optimization of the mechanical stimulation of the RW membrane with an active middle ear implant (AMEI). MATERIALS AND METHODS Ten temporal bones were prepared with combined atticotomy and facial recess approach to expose the RW. An AMEI stimulated the RW with...

In recent years deep learning has gained a lot of popularity because its ability to work on complex tasks. It been used in many industries optimize operations and help decision-making. Deep neural networks have often referred as ‘Black boxes’, that is they take inputs give outputs with high accuracies without giving an insight into how work. important demystify verify are looking at the correct...

From the CAD system we get the schematic, assembly drawings and other documentation, data for photoor laser plotter to manufacture photographic films for the PWB production, data for the printing mask for solder resist and solder paste printing, data for numeric drilling and milling machines, placement information for pick and place machines, data for test fixtures and the testing machine, etc....

The effect of manual percussion of the thorax in nine patients with stable chronic airflow obstruction and excessive tracheobronchial secretion has been studied. Tracheobronchial clearance was measured over 50 minutes on three different days. On the first day manual percussion was applied for 10 minutes. In the period when percussion was applied the mucus clearance was slightly but significantl...

Musical expression is the creative nuance through which a musician conveys emotion and connects with a listener. In un-pitched percussion instruments, these nuances are a very important component of performance. In this work, we present a system that seeks to classify different expressive articulation techniques independent of percussion instrument. One use of this system is to enhance the orga...

laser technology has been recently introduced into the dental field with the idea to replace drilling. having a less painful first dental experience by the use of modern instruments like laser can be an efficient preventive and therapeutic strategy in pediatric dentistry. pedodontists need to learn the new less invasive technologies and adopt them in their routine practice. this study aimed to ...