due to lack of agroforestry research in iran, it is important to identify the existing agroforestry systems in order to create a database for further researches. feridan and chadegan citis, west of isfahan province are two areas in which the various agroforestry systems have been developed. these two regions were selected for research because of providing the easy access and a variety of system...

This tutorial is targeted at a broad set of database systems and applications people. It is intended to let the attendees better appreciate what is really behind the covers of many of the modern database systems (e.g., NoSQL and NewSQL systems) going beyond the hype associated with these open source, commercial and research systems. The capabilities and limitations of such systems will be addre...

background free radicals are known as atoms and molecules which are highly reactive with the body’s single-electrons, and may cause irrecoverable damages to the macromolecules of organisms. systems to deal with damages caused by free radicals are known as “antioxidant immune systems”. flavonoids and polyphenolic compounds are from non-enzymatic antioxidants which many nutritional compounds cont...

purpose: to present a new reliable and accurate iris recognition method applicable in identification systems. methods: the system was implemented and tested on 876 standard iris images (daugman iris images database) from 876 persons of different nationalities via image processing techniques. results: false accept reject (far) and false reject reject (frr) were smaller in our suggested method as...

Companies and organizations often need to publish clients' information to institutions for research purposes. For example, a hospital periodically releases patients' diagnostic records so that medical scientists can study the correlation between diseases and various factors. Privacy preservation is an important topic in data publication. First, the publication should be fuzzy enough to disallow...

Though there are now numerous examples of multimedia systems in the commercial market, these systems have been developed primarily on a case-by-case basis. The large-scale development of such systems requires a principled characterization of multimedia systems which is independent of any single application. It requires a uniied query language framework to access these diierent structures in a v...

In recent years, there has been considerable interest in techniques that enhance the cooperative behavior of database systems and many different techniques have been developed. These techniques approach the goal of cooperation in diverse ways; the differences may be in the specific task in which they offer cooperation, in the details of the solution, and even in the very interpretation of coope...