the lead and zinc sample from goosh-e-fill mine with 2.4%pb, 8.0%zn and 10.0% fe, was used in different flotation experiments to recover lead and zinc minerals. the valuable minerals in prepared sample were oxidized and the results showed that the lead minerals floated at ph= 9.5 and 11.5, probably it can be due to existence of two or more types of lead minerals. the best result was achieved fo...

determining the distribution of heavy metals in groundwater is important in developing appropriate management strategies at mine sites. in this paper, the application of artificial intelligence (ai) methods to data analysis,namely artificial neural network (ann), hybrid ann with biogeography-based optimization (ann-bbo), and multi-output adaptive neural fuzzy inference system (manfis) to estima...

To model the effects of volume heterogeneities in 1) scattering from sand sediments and 2) in sound propagation within those sediments. A better understanding of the role of heterogeneities in both scattering and propagation could lead to improvements in sediment characterization using remote sensing techniques as well as in high-frequency detection of mine and mine-like targets resting on or b...

To model the effects of volume heterogeneities in 1) scattering from sand sediments and 2) in sound propagation within those sediments. A better understanding of the role of heterogeneities in both scattering and propagation could lead to improvements in sediment characterization using remote sensing techniques as well as in high-frequency detection of mine and mine-like targets resting on or b...

Because insect herbivores generally suffer from high mortality due to their natural enemies, reducing the risk of being located by natural enemies is of critical importance for them, forcing them to develop a variety of defensive measures. Larvae of leaf-mining insects lead a sedentary life inside a leaf and make conspicuous feeding tracks called mines, exposing themselves to the potential risk...

Imaging spectrometer data (also known as 'hyperspectral imagery' or HSI) are well established for detailed mineral mapping from airborne and satellite systems. Overhead data, however, have substantial additional potential when used together with ground-based measurements. An imaging spectrometer system was used to acquire airborne measurements and to image in-place outcrops (mine walls) and box...