OBJECTIVES A nondestructive, rapid, and practical method of dental alloy sorting is desirable. In this study, the hypothesis to be tested is that dental alloys show significantly different and high thermoelectric power values, on the basis of which alloy sorting is possible. METHODS Six silver-colored commercial dental casting alloys are used in this study: two silver alloys, one gold-silver-...

The scaffolds composed of monolithic ƒÀ-TCP and ƒÀ-TCP/ƒ¿-TCP composites were fabricated by a low-loaded environmental processing. The pore introduction was attempted using starch, instead of polymer beads. The aqueous slurry of the mixture of ƒÀ-TCP and starch was prepared for an aqueous slip-casting. Problem on the heterogeneity distribution of the starch in aqueous slip-casting was solved by...

For the first time, a tubular asymmetric ceramic-carbonate dual phase membrane was prepared by a centrifugal casting technique and used for high temperature CO2 separation. This membrane shows high CO2 permeation flux and permeance.

Background The management of congenital talipes equino varus (clubfoot deformity) has been transformed in the last 20 years as surgical correction has been replaced by the non-surgical Ponseti method. The Ponseti method, consists of corrective serial casting followed by maintenance bracing, and has been repeatedly demonstrated to give best results - regarded as the 'gold standard' treatment for...

OBJECTIVES To evaluate the influence of alloy type and casting procedure on the fracture strength (FS) of metallic frameworks for implant-supported fixed prostheses. STUDY DESIGN Thirty three-unit structures for lower posterior bridges were waxed-up and randomly assigned to two groups (n=15) according to alloy type and casting technique: Group 1 (C): cobalt-chromium cast in a centrifugal mach...

Fused deposition modeling (FDM) is one of the rapid prototyping technologies that can use plastic material, which can be effectively used for making patterns for investment casting. The surface finish of the investment casting depends upon the surface finish of the pattern. But the surface finish of the parts produced by using FDM is not very good as compared to wax patterns, which are conventi...

In the present study, mixed matrix PES/zeolite nanoparticles nanofiltration membranes were prepared via the solution casting technique. The effect of zeolite concentration on the PES membrane performance and its properties was studied. Cross-sectional scanning electron microscope (SEM) observations showed that the porosity in the membrane sub-layer was increased with addition of zeolite into th...

This research study proposes an innovative analysis for controlling the defects in aluminium die casting industry. In this analysis, casting process of a two-stroke engine oil pump body is concentrated. The component selected has often rejected due to blow hole defects. Six Sigma, the zero defect approach, is used in this study. Define measure, analyse, improve and control (DMAIC) problem solvi...

This study compares the use of iodoform gauze and obturators made by hot pressure casting technique in the opening maintenance after the jaw cyst marsupialization. Forty patients with jaw cyst marsupialization in either retromolar pad or vestibular groove were randomly allocated to either experimental group (hot pressure casting obturator) or control group (iodoform gauze) and monitored for a p...

Heightfields have proved to be useful for rendering terrains or polygonal surfaces with finestructured details. While GPU-based ray casting has become popular for the latter setting, terrains are commonly rendered by using mesh-based techniques, because the heightfields can be very large and hence ray casting on these data is usually less efficient. Compared to mesh-based techniques, ray castin...