avo analysis is a technique which is widely used in industry and is applied on seismic prestack data. results from changes in seismic wave reflection amplitude versus offset can be used in extracting elastic properties and hence lithology and reservoirs pore fluid identification. before performing avo analysis studies, processing steps should be ensured that changes in reflection amplitude are ...

The goal of this study was to evaluate the potential relationship among polymorphisms of aromatic hydrocarbon receptor, aromatic hydrocarbon receptor repressor, and rheumatoid arthritis (RA) susceptibility as well as the association among the polymorphisms of aromatic hydrocarbon receptor, aromatic hydrocarbon receptor repressor, and their expression.We performed a hospital-based, case-control ...

In many animal species, the propensity for aggression is linked to social context. In social insects, aggressive interactions between colonies are related to the assessment of cuticular hydrocarbon profiles. We investigated how, in the red harvester ant, Pogonomyrmex barbatus, an individual ant's task environment contributes to its hydrocarbon profile, and how task-specific differences in profi...

The quality of wide a variety of synthetic or naturally occurring materials which are used for outdoor applications are known to be adversely affected by environmental factors. These materials absorb solar ultraviolet radiation leading to changes in their structures and compositions. The consequences of these changes lead to degradation of the materials. Bitumen is one of the materials which is...

based on the {s+, i-} pathway, the concentration of surfactant and surface charge density of silanolate groups control the phase transition from lamellar, to hexagonal through cubic form. the high surface charge density of silanolate groups was observed for the lamellar phase. with decrease of molar concentration of surfactant on the gel, the yield of reaction decreases and the stability of mes...

Two reservoirs domiciled in a well have been analysed this study order to obtain the quantitative reservoir properties. These properties are essential not only for development and optimization but also accurate decision-making prior exploitation production. A suite of composite logs comprising caliper log, gamma-ray (GR) density resistivity sonic transit time obtained from field onshore Niger D...

background: poisoning is considered an important public health issue. considering the high prevalence of poisonings and the diversity of their ensuing symptoms, this study aimed to investigate the epidemiology of the clinical symptoms of poisoning in children admitted to shahid madani and ta'min ejtema'i hospitals of khorramabad in 2011. methods: in this cross-sectional study, the dat...

Rates of hydrocarbon biodegradation were estimated by following oxygen uptake during mineral oil oxidation or oxidation of [1-14C]hexadecane to 14CO2, when these substrates were added to natural water samples from Wisconsin lakes. A lag phase preceded hydrocarbon oxidation, the length of which depended on population density or on factors influencing growth rate and on the presence of nonhydroca...

The geological circumstances under which sediments are built throughout time referred to as depositional environments. features of the sediment, such its texture, composition, and permeability, influenced by these environments, qualities ultimately define reservoir quality. This study focuses on identifying reservoirs in western offshore region Nigeria's Niger Delta Basin evaluating their prope...

The utilization of the spiral tube heat exchanger (SHE) has become increasingly prevalent in large-scale liquefaction processes. However, flow pattern and frictional pressure drop two-phase have been scarcely studied, particularly under offshore sloshing conditions. An experimental system had developed to explore characteristics mixed hydrocarbon fluid a tube. Moreover, these order examine effe...