The present paper has determined the radioactivity concentrations, which are due to natural occurrence of radionuclides along with heavy metal concentration in water, sediment, and fish from 2 reservoirs in Ghana. Heavy metal concentrations in all samples were generally within the WHO safe limits with the average activity concentrations of 238U, 232Th, and 40K in water being respectively 0.42±0...

be from pipe and connection breaks rather than structural failure of distribution reservoirs (as long as the reservoirs have been designed for lateral loading). Most of the examples of storage tanks and distribution reservoirs impacted by the 1994 Northridge and 1995 Hyogo-ken Nanbu earthquakes appear to have been of steel construction rather than of reinforced concrete or prestressed concrete ...

Reliable, predictive models to optimize carbonate reservoir performance

Based on percolation mechanism of fractured reservoirs and simulation technique, the numerical simulation software of fractured reservoirs has been developed on PC-Linux environment, which is on the basis of DQHY simulator of three dimensions and three phases. It can treat dual-porosity/singlepermeability and dual-porosity/dual-permeability model. The results of examples indicate that the perfo...

an outbreak of zoonotic cutaneous leishmaniasis caused by leishmania major was identified in ghanavat rural district, qom province, central iran, during 1999-2001. among 1069 inhabitants examined in dec. 1999, 5.14% showed evidence of active lesions and 12.44% had scar indicative of past infection. the most highly infected age group was 5-9 years old for ulcers with a rate of 6.56%. the inciden...

Quantization of the electromagnetic field inside a cavity in the presence of an isotropic dielectric medium investigated by replacing the dielectric medium with two independent reservoirs, i.e., electric and magnetic reservoirs. Both Maxwell and structural equations obtained through Heisenberg equations. Some examples indicating the applicability and simplicity of the approach considered. Black...

Formation micro imager (FMI) can directly reflect changes of wall stratums and rock structures. Conventionally, FMI images mainly are analyzed with manual processing, which is extremely inefficient and incurs a heavy workload for experts. Iranian reservoirs are mainly carbonate reservoirs, in which the fractures have an important effect on permeability and petroleum production. In this paper, a...

Ebola and Marburg viruses are maintained in unknown reservoir species; spillover into human populations results in occasional human cases or epidemics. We attempted to narrow the list of possibilities regarding the identity of those reservoir species. We made a series of explicit assumptions about the reservoir: it is a mammal; it supports persistent, largely asymptomatic filovirus infections; ...