Chronic copper poisoning was investigated in ruminants within the Phalaborwa area of the Kruger National Park (KNP). Exposure of ruminants to environmental copper pollution resulting form copper smelting operations of a mine in the area was examined by comparing impala faecal copper concentrations in dung heaps and tissue (liver, lung and kidney) copper concentrations of organs collected from i...

The thesis deals with the modeling of air pollution transportation and dispersion processes in the atmosphere, more precisely with the numerical approaches to solve such models. The modeling of air pollution has a great importance for prediction of the contaminations and it helps with understanding of the process and with elimination of its consequences. The models which are described by partia...

Although Iran's Ghaen Plain provides saffron to much of the world, no regional groundwater quality (GQ) assessment has yet been undertaken. Given the region's potential for saltwater intrusion and heavy metal contamination, it is important to assess the GQ and determine its main probable source of pollution (MPSP). Such knowledge would allow for informed mitigation or elimination of the potenti...

There has been increasing interest for manufacturers to produce hybrid vehicles. This is due to high pollution levels, increasing fuel prices, and customer demands of fuel efficient vehicles. Similarly there is interest in use of electrical components instead of mechanically operated ones in automobiles. Mechanical differential is used in automobiles for providing torque transmission through 90...

in rabbits, especially in some races, limb movement disorder called splay legs, are mostly unilateral or bilateral in front or hind legs at an early age. the severity ranges from mild to severe in this case. in breeding colony of albino dutch laboratory rabbits, the splay leg disorder has been observed over the years permanently.within the scope of this research, 1.5-2.5% of 700-750 number of c...

This paper represents the results of ten pollution prevention/waste minimization assessments performed on marine maintenance and commercial printing industries in the Hampton Roads area of the Commonwealth of Virginia. The pollution prevention project is the result of a working partnership (the Partnership) formed between Old Dominion University Department of Civil and Environmental Engineering...

measles is a highly contagious disease. by the end of 2013, 84% of children had received at least a single dose of measles vaccine by their second birthday, and 148 countries had included a second dose as part of routine immunization. in 2002, the iranian ministry of health and medical education developed a comprehensive strategy to eliminate measles including mass immunization campaign for peo...

in this paper, we present a numerical algorithm for solving matrix equations $(a otimes b)x = f$  by extending the well-known gaussian elimination for $ax = b$. the proposed algorithm has a high computational efficiency. two numerical examples are provided to show the effectiveness of the proposed algorithm.

Nonpoint source discharges remain one of the major causes of non-attainment of water quality goals in urban areas in the United States. Controlling nonpoint source discharges is a critical part of achieving water quality goals within urban areas. Efforts to reduce nonpoint discharges are expected to intensify with implementation of Total Maximum Daily Loads (TMDLs) and changes to National Pollu...