The extraction of Canna edulis Ker. starch from its rhizome was performed using 2 different types of press (hydraulic press and screw press) and with the addition of Na-metabisulphite and NaOH (in the range of concentration 100 5000 ppm each). The optimum condition for this process was determined by Central Composite Design of experiment and the statistical calculation was solved by Design-Expe...

Aim: In this case report a male patient is presented with a congenitally missing right upper central incisor. Different treatment methods have been combined, including ridge-split technique and flapless surgery. Methods: The internal tri-lobed impalnt was placed during the bone splitting procedure. Presurgical orthodontic treatment and post-surgical soft-tissue manipulation is described. Result...

The aim of the present study was to develop and characterise polymeric composite pellets by means of continuous melt extrusion techniques. Powder blends of a steroid hormone (SH) as a model drug and either ethyl cellulose (EC N10 and EC P7 grades) or hydroxypropyl methylcellulose (HPMC AS grade) as polymeric carrier were extruded using a Pharma 11mm twin screw extruder in a continuous mode of o...

45 Abstract— This paper present the development of composite flush door shutter for ecological purpose (eco-composite) using natural fibre like bamboo, jute and their basic mechanical properties. Here, 100 percent indigenous technologies were applied to make flush door shutter of solid core type. Different thermosetting resin adhesives were used as matrix at different stage. The experimental re...

Many successful attempts to increase pullout strength of pedicle screws in osteoporotic bone have been accompanied with an increased risk of catastrophic damage to the patient. To avoid this, a single-armed expansive pedicle screw was designed to increase fixation strength while controlling postfailure damage away from the nerves surrounding the pedicle. The screw was then subsequently tested i...

background: fracture load of implant-supported restorations is an important factor in clinical success. this study evaluated the effect of two techniques for screw access hole preparation on the fracture load of cement-screw retained implant-supported zirconia-based crowns. methods: thirty similar cement-screw retained implant-supported zirconia-based maxillary central incisor crowns were evalu...

Composite filaments based on acrylonitrile butadiene styrene (ABS) consisting of cellulose nanocrystal (CNC) were prepared by melt intercalation using a single screw extruder. The effect CNC loading levels (0-4 wt%) the tensile properties and water absorption behavior was investigated in this work. Results indicated that composite exhibited rougher surfaces non-uniform diameters than neat ABS f...

However, problems such as osteoporosis due to high elasticity of metals relative to bones, and local infections and systemic problems caused by releasing metallic ions have motivated research on replacing metallic screws with non metallic ones. In this study, the composite containing poly-l-lactic acid and bioactive glass fibers were considered for the design of the screw using ABAQUS software ...