South Africa was ill prepared for the Second World War.Her war potential was limited and Hitler is reputed to have laughed when the South African declaration came on 6 September 1939.The Permanent and Active Citizen Forces were under strength: the first comprised only 350 officers and some five thousand men.There were a further 122 000 men in the C
A new species of freshwater mussel belonging kt196 torque converter to the genus Pseudocuneopsis, namely Pseudocuneopsis wuana sp.nov., is diagnosed and described from Guangxi Province, China.This paper provides a detailed shell morphological description, soft-body anatomical characteristics, and partial sequences of mitochondrial COI as DNA barcod
Abrasive wear is a principal cost in mining and mineral processing operations.High chromium white cast iron (WCI) further reinforced with niobium carbide (NbC) shows promise to increase component wear lives.This work investigates the effect of niobium macro-additions on microstructure, hardness and high-stress abrasive wear behaviour of Nb-containi
In recent years, the invert anomalies of operating railway tunnels in water-rich areas occur frequently, which greatly affect the transportation capacity of the railway lines.Tunnel drainage system quest fryer is a crucial factor to ensure the invert stability by regulating the external water pressure (EWP).By means of a three-dimensional (3D) prin