The role of ablation casting process in the case different thicknesses a sloping pattern near-eutectic Al-Si alloy was evaluated. time durations for water spray were selected as 100 and 150 s after pouring melts; addition, related to first sample (AB1) second (AB2), respectively. To this end, 8 thermocouples located (4 on surface 4 at bottom). results indicated that cooling rates 6.9–43.6 times...

BACKGROUND Although botulinum toxin A is frequently used to augment serial casting in the treatment of soft-tissue contractures in children with cerebral palsy, its effectiveness for this purpose has not been evaluated. The purpose of the present study was to determine whether botulinum toxin A injection increases the efficacy of serial casting. METHODS A prospective, randomized trial was und...

The solidification of metals continues to be a phenomenon of great interest to physicists, metallurgists, casting engineers and software developers. It is a non-linear transient phenomenon, posing a challenge in terms of modelling and analysis. During the solidification of a casting in a mould, the heat-transfer between the casting and the mould plays a vital role. This paper attempts to study ...

A stumbling point for many learning to fly fish is being able to fly cast well enough to ‘present’ a fly to a feeding fish. Even among more skilled fly fishers, learning to fly cast better is often a bottleneck towards advancement in the sport. Fly casting instruction today relies on the visual inspection of the fly casting stroke and the resulting ‘loop’ of fly line. These qualitative visual c...

This paper describes a method to generate Delaunay tetrahedral meshes directly from regular volume data by vertex insertion driven by an error criterion. By adapting the mesh to the input data, the method produces meshes suitable for fast and precise volume ray-casting. A partitioning method that splits the mesh into homogeneous sub-meshes is also presented. Such mesh segmentation strategy turn...

There is a growing need for custom visualization applications to deal with the rising amounts of volume data to be analyzed in fields like medicine, seismology, and meteorology. Visual programming techniques have been used in visualization and other fields to analyze and visualize data in an intuitive manner. However, this additional step of abstraction often results in a performance penalty du...

A reoxidation inclusion model is described that simulates the entire life cycle of inclusions during the filling of steel castings and predicts their final location in the casting. Inclusions can be released into the mold at the inlet and/or nucleate on the metal free surface, where contact with oxygen from the atmosphere creates them. Inclusion motion is calculated by solving an equation of mo...

The dimensionless Niyama criterion was used to predict the formation of microporosity in nickel-based superalloy casting, which extended the model application from a simple plate casting to complex thin-wall superalloy casting. The physical characteristics of the superalloy were calculated by JMatPro software. The relation between the volume percentage of microporosity and the dimensionless Niy...

During continuous casting, argon blowing from tundish cover (ABTC) can greatly prevent the flow of remaining air and decrease reoxidation molten steel in tundish. In current study, a numerical model based on two-strand slab casting machine was established to investigate feasibility evaluate protective effect ABTC process. The influence operation parameters, including sealing schemes holes rate ...