New Zealand Aluminium Smelters Ltd operates a smelting facility at Tiwai Point near Invercargill. The smelter produces aluminium by the electrolytic reduction of alumina in 650 cells. The cells are laid out in long lines and are grouped into tapping bays. The purity of the aluminium varies from cell to cell depending on a number of factors including the age of the cell, the purity of the alumin...

Floating zone method is an important technology for growth of high integrity and uniformity single crystal materials due to its free crucible contamination. However, capillary convection in the melt a great challenge floating growth. In this paper, numerical simulations are performed investigate coupled solute-thermocapillary SixGe1-x system half-zone liquid bridge. The impact aspect ratio, As,...

this study aims at analyzing spatial pattern and associations of fagus oriantalis lipsky in different vertical classes in intact beech forests. data collection was done in 25 ha plot in gorazbon district of educational and experimental forests of university of tehran. species and dbh of all trees with dbh > 7.5 cm were recorded. the location of each tree was determined using azimuth and distanc...

This archaeological research aimed to investigate the authentic metalworking activities of Yodhawewa area and examine contemporary socio-economic movements based on discovered material culture. The entire work was carried out in 2018 a surface survey two excavations an about 201600m2 outskirts reservoir. C14 chronology confirms 1st-8th centuries activities, this obtained considerable artefacts ...

Abstract In this work, a systematic study on the interactions between aluminum oxide films and TiB 2 grain refiner particles their effect refinement behavior have been conducted. Oxide were introduced into commercial purity melt by adding AA 6061 alloy chips while Al-3T-1B master alloy. Strong sedimentation of was observed in without chip addition during long-time settling. Most settled accumul...