in investigation of dynamic specifications of castellated beams, it is necessary to be studied the excitation intensity of dynamic mode shapes for different loading conditions. it is evident that for a specific loading, not all modes of a structure are excited and the structural response depends on the applied loading specifications. in this paper using the finite element method (based on ansys...

recent years have brought a great deal of expansion to the economic systems of developing countries. although they serve as vital link of economic activities, the transportation network of these countries have not grown proportionally. since transportation investments is a a substantial portion of the national budget, a good knowledge of each mode's various characteristics is essential, wh...

background : main technique to control acquired immunodeficiency syndrome (hiv) infection is the effective preventive programs among high-risk groups. modeling is one of the effective methods where there is inadequate data. we used the modes of transmission (mot) model to predict the transmission of hiv infection in iran. methods : we systematically searched published and grey literature to fin...

The nursing shortage is exacerbated by the faculty shortage, as faculty approach retirement age and too few faculty exist to replace them. Masters-prepared nurse with limited preparation for teaching may be unable to attend traditional educational programs because of work and family commitments. Without further academic preparation, these nurses are illprepared for the faculty role. The College...

In recent years online and blended communities have become a popular topic among educationalists. In this paper we present a framework that supports the analysis, development and maintenance of online and blended communities. This is applied to two community case studies that differ along several key dimensions such as type of membership, the purpose of the communities, their policies and size....

In This paper, we focus on the need for compares the organic production, operation and management patterns between paddy rice production base of Zhongliangmeiyu Ltd (Meiyu for short) and organic vegetable production base of company A, and adopt the SWOT approach to analyze the strengths, weaknesses as well as external opportunities and threats of the two patterns. The conclusion can be briefed ...