New Method for Optimization of License Plate Recognition system with Use of Edge Detection and Connected Component

License Plate recognition plays an important role on the traffic monitoring and parking management systems. In this paper, a fast and real time method has been proposed which has an appropriate application to find tilt and poor quality plates. In the proposed method, at the beginning, the image is converted into binary mode using adaptive threshold. Then, by using some edge detection and morphology operations, plate number location has been specified. Finally, if the plat has tilt, its tilt is removed away. This method has been tested on another paper data set that has different images of the background, considering distance, and angel of view so that the correct extraction rate of plate reached at 98.66%.Comment: 3rd IEEE International Conference on Computer and Knowledge Engineering (ICCKE 2013), October 31 & November 1, 2013, Ferdowsi Universit Mashha

Insulation of Small Open Economies in the Presence of External Disturbances Under Alternative Exchange Rate Systems

This study analyzes the determination of the exchange rate system in a small economy when external real and monetary disturbances occur. Choice of exchange rate policy is investigated using a model assuming rational expectations and a loss function expressing the squared deviations of the small country output from desired output. The distinguishing feature of the analysis is the emphasis on real as well as monetary disturbances which originate abroad but are a source of domestic output variation. the link between foreign monetary and real disturbances and variance in output is traced using the thoretical model and the loss function assumed. The emphasis of the analysis is on a three country (one small and two large) trading situation, whereby the small country trades with two major large country trading partners. It is assumed throughout that there is perfect commodity arbitrage between two large countries. The small country imports an intermediate good from one of the large countries and exports a finished good. The small country doesnot import goods for consumption. there is perfect capital movement between two large countries, but capital is immobile between the small and these two large countries. The analysis indicates that occurrence of purely nominal shocks abroad are not transmitted to the small country under floating exchange rate system. The presence of real disturbances in large countries induce lower prices for the goods they produce, but the effect on the exchange rate is ambiguos. This study concludes that in general the adoption of a flexible exchange rate system by a small country is preferred and results in lower loss in most cases of external disturbance

Antiphospholipid Antibodies in Women with Recurrent Urinary Tract Infection

Background: A variety of infections, including acute and recurrent urinary tract infections (UTIs), can trigger production of antiphospholipid antibodies (aPL).  These antibodies in women can lead to recurrent pregnancy loss. The aim of this study was to evaluate the prevalence of aPL in recurrent UTI patients.Materials and Methods: A total 52 subjects who had positive urine culture and 50 healthy individuals as controls were evaluated for presence of lupus anticoagulant (LA), anticardiolipin, anti-β2 GPI(anti-2-glycoprotein I) autoantibodies  IgM and IgG and Interleukin-8 levels. Determination of lupus anticoagulant was done by Activated Partial Thromboplastin Time (aPTT). Anticardiolipin and anti-β2 GPI autoantibodies were evaluated by ELISA method. Interleukin-8 values were also evaluated using ELISA method. Results: Escherichia coli (86.61%) and Proteus mirabilis (1.92%) had the highest and lowest frequency respectively. The prevalence of anti- β2 GPI IgG and IgM isotypes and anticardiolipin IgG and IgM isotypes or LA in UTI patients and healthy controls was 0.0%. There was significant association between neutrophil counts and IL-8 levels at the p < 0.01.Conclusion: Our results showed that in the UTI group and controls evaluated antiphospholipid antibodies were not present. The production of antiphospholipid antibodies is influenced by various genetic and environmental factors and chronic urinary tract infection alone is not the cause. This can affect the prevalence of antiphospholipid antibodies in various populations. However, other factors, such as the type of antiphospholipid antibody, sampling season and methodology can affect the results