1- Department of surgery, Tehran University Medical Sciences, Tehran, Iran 2- Surgical Oncology, Montreal, Canada , [email protected]

The objective of cryptography is to make it feasible for two persons to exchange a message in such a way that other persons cannot understand. There is no end to the number of ways this can be done, but here the proposed method will be more concerned with a technique of encoding the text in such a way that the recipient can only discover the original message. The original message usually called...

OBJECTIVE The association between renal hypoxia and the development of renal injury is well established. However, no adequate method currently exists to non-invasively measure functional changes in renal oxygenation in normal and injured patients. METHOD R2* quantification was performed using renal blood oxygen level-dependent properties. Five healthy normotensive women (50 ± 5.3 years) under...

A technique for converting Library of Congress Subject Headings MARCXML to Simple Knowledge Organization System (SKOS) RDF is described. Strengths of the SKOS vocabulary are highlighted, as well as possible points for extension, and the integration of other semantic web vocabularies such as Dublin Core. An application for making the vocabulary available as linkeddata on the Web is also described.

In this paper, we generalize a formulation for converting a length-2'' discrete cosine transform into n groups of equations, then apply a novel technique for its implementation. The sizes of the groups are2n-i 2n-2 , . . . 2' respectively, while their structures are extremely regular. The realization can then be converted into recursive filter form, which is of particularly simple for practical...

This paper presents an efficient image compression approach based on JPEG image compression. JPEG is the most frequently applied image compression technique in today‟s world. We have developed an application based on VB.NET for converting and compressing images in JPEG format. Using this application we finally propose a relation between image quality with the amount of image compression.