Maize (Zea mays) is a major food and animal feed worldwide and occupies a relevant place in the world economy and trade as an industrial grain crop. Currently more than 70% of maize production is used for food and feed; therefore, knowledge of genes involved in grain structure and chemical is important for improving the nutritional and food-making properties of maize. It is a good source of car...

Bioleaching is the extraction of specific metals from ores by using bacteria. The typical bioleaching strain Acidithiobacillus ferrooxidans utilizes energy from the oxidation of ironand sulfur-containing minerals (Baker & Banfield, 2003) and grows around pH 2.0. As bacteria grow optimally within a specific narrow range of pH, the fluctuation of environmental acidity can bring certain disadvanta...

We report the development of laboratory based hyperspectral X-ray computed tomography which allows the internal elemental chemistry of an object to be reconstructed and visualised in three dimensions. The method employs a spectroscopic X-ray imaging detector with sufficient energy resolution to distinguish individual elemental absorption edges. Elemental distributions can then be made by K-edge...

This is a description of the historical, physical and industrial features of the principal centres of mineral productions in the British Dominions beyond the seas, by Mr. R. Stokes, the late Mining Editor of the Rancl Daily Neivs of Johannesburg. It is a brief but comprehensive review of the mineral treasures of the British Empire. It is worthy of notice that the following important minerals ar...

The present state of melting techniques for IN7 18 and IN625 has well-defined limitations both in terms of the ingot structure and maximum ingot size which is fabricable by the various processes. Although there are methods already in industrial use which would extend both of these limits, since the alloys must be produced at a relatively low cost here are further limitations on the practical ma...

Many minerals are effective absorbers of microwave energy, whereas in general gangue materials are not. This suggests applying microwave heating to mineral processing to effect selective heating of minerai phases. Many mineral processing applications have been tested only on a laboratory scale; the engineering realities of large-scale operations have largely been overlooked. Of particular conce...

The geological storage of CO2 coming from large industrial facilities has been studied in detail for the last several years as a solution against the greenhouse effect and climate change in a number of countries. It is considered as a complementary solution together with the research for the non pollutant or/and renewable energy sources. One of the available options is the injection of the supe...