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Radiation is used different field and among others neutron is the one of the most hazardous particle as it is neutral and heavy. Its neutral characteristics make it more difficult particle to be shielded. In this study neutron shielding properties for some medical interested materials of water, fat and bone have been obtained using Phy-X/PSD software.

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Abstract-One of the most important things in project management is using the most suitable tools and methods in an effective way for project success. The available tools for software project management mainly focus on planning, time management, team management, collaboration, and tracking the development progress. However, there is a lack of supporting mechanisms to guide managers and decision makers for making technical decisions during the early stages. In this paper, we propose a rule based decision support system to guide decision makers and software engineers in programming language selection. Firstly, the system provides a mechanism to build and modify a knowledge base. After that, the system provides guidance about programming language selection before the coding stage according to the project details. The proposed system is implemented with a rule-based programming language.

Traditional procurement processes to shorten the decision-making mechanisms and processes to optimise transparent, integrated, and most importantly, the operational costs in order to reduce the development of information and communication technologies, public procurement processes using e-procurement concept becomes more and more prevalent started. Alignment in the name of our country's European Union membership by the European Parliament and Council Directive No. 2004/18 in goods, services and works contracts have included the need to perform electronically. Directives, and electronic auctions, dynamic purchasing systems and new applications such as framework agreements have come. In this study, the Dynamic Purchasing System (DPS), the tender which the institution's needs quickly to meet the time limited, the validity period of being selected met the criteria and specifications comply with the shows that submits a bid that all economic operators which are open to a completely electronic process. However, the tender notice, invitation to bid and evaluation of suppliers, such as the ever-changing dynamic process in which the execution of a process completely electronic environment brings with it some risk factors. Important milestone in the process of electronic procurement in the public sector which will create one of these systems will be provided through the active participation of small businesses and will create a more competitive environment. The purpose of this study, the DPS can be implemented in Turkey could become a critical success factor to be considered for the review is to create awareness for the public and private sectors. These objectives to reach the other country models examined in our country studies will be compared, as well as the application process depends on the sensitivity as a needed improvement of the system all the security elements of structuring processes will be discussed.