Rabies has been endemic in Northern provinces of Iran for long time and it was a cause of some outbreaks of disease especially in Golestan province. This study has been carried out to compare rabies cases in northern part Provinces of Iran including Mazandaran, Golestan, Gilan and Ardabil during 2007. In this study, data analysis indicated percentage of positive cases in suspected rabies samples in Mazandaran were among dog (%37.5), cow, sheep/goat (%100) and human (%64.3); in Golestan were among dog, cow, wolf, sheep/ goat, horse/ donkey (%100); in Gilan were among cow (%95) and in Ardabil they were observed in dog (%50), cow (%95.8), wolf and sheep/goat (%100). In this study, data analysis indicated percentage of rabies positive cases in four provinces of Iran were %100 in Golestan, %90.5 in Gilan, %85.3 in Ardabil and %64.3 in Mazandaran. The results of this study also emphasized the important role of wildlife in disseminating of human rabies in Northern provinces. These results confirmed a high prevalence rate of animal form of rabies in northern district of Iran, and it underlined the importance of animal bites and rabies, which is required an extra precaution strategy.
12%, in cross bred 22.7% and in local 18.9% through RBPT, while it was 4%, 15.3% and 12.7% through SAT in exotic, cross bred and local cattle, respectively. It was found that the occurrence of brucellosis was positively associated with increased TLC, AST, ALT and SD. On other hand Hb, TEC, TLC, neutrophils, eosinophils, lymphocytes and monocytes counts were decreased in positive animals.
Conclusion:In conclusion, Brucellosis in Lahore-Pakistan is a serious problem among dairy herds and inducing inimical impact on commercial dairy farmers' economy. The seroprevalence varies across animal breeds with variable deleterious changes in hematological parameters and serum biochemistry.
Daily increase in fuel cost and also marine environment pollution tends designers and engineers to design and optimize based on reducing losses and energy consumption. Reduction of fuel consumption and marine environment pollution are categorized in high priority problems in design of new vessels and optimization of current ones. Using hydrofoil between two hulls is one of the best strategies in optimization cycle of fuel consumption of catamarans. HYSUCAT comes from ''Hydrofoil Supported Catamarans'' and stands for a vessel which is composed of a catamaran hull and hydrofoils mounted between two hulls. These hydrofoils tolerate part of hull weight in high speed and decrease wetted surface of vessel. This element reduces drag of vessel and consequently fuel consumption by decreasing the wetted surface. This research deals with determination of a suitable hydrofoil section to reduce drag and increase stability of a catamaran vessel using experimental data. Full-scale foils were constructed and mounted on a vessel in continue, and its performance was examined in sea tests. Determining the best section and also the most suitable position for mounting the foil is a novel study in the field of hydrodynamics of catamaran vessels.
In the current study, the propulsion performance of a conventional ship is experimentally evaluated via self-propulsion tests under four different pre-swirl ducts compared to a case with no duct. For this purpose, the Series-60 ship was used as an intended conventional ship and the Mewis duct, the semicircular duct, and the Becker twisted fins duct were investigated. We also tested an improved Mewis duct by changing its hydrofoil section and chord length. The thrust and torque coefficients and the propulsive efficiency were analyzed to investigate the propulsion performance. According to our experimental measurements, we found that the thrust coefficient was increased and the torque coefficient was decreased using pre-swirl ducts compared to the case with no duct, especially for a higher Froude number. The highest value for the propulsive efficiency was achieved for the Mewis duct, the Becker twisted fins duct, and the semicircular duct, in the order of their appearance. We also found that the reduction in the Mewis duct's chord length and a change in its hydrofoil type from the NACA4415 to the Nozzle A19 result in an increase in the propulsive efficiency.
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