the study of air infiltration into the buildings is important from several perspectives that may be noted to energy and design of hvac systems, indoor air quality and thermal comfort and design of smoke control systems. given the importance of this issue, an experimental and numerical study of air infiltration through conventional doors and windows has been explored in iran. to this end, at fir...

در این تحقیق ,تاثیرات نا اطمینانی درآمدهای نفتی به همراه عوامل تجربی و تاثیر گذار دیگر را بر پس انداز بخش خصوصی در12 کشور عضو اوپک  با استفاده از داده های مربوط به سالهای 1990 تا 2010  مورد بررسی قرار می دهیم .با توجه به مباحث نظری و تجربی , عواملی مانند درآمدهای نفتی ,نرخ تورم ,نرخ بهره و رابطه مبادله برنرخ پس انداز خصوصی تاثیر گذار می باشند. .نتایج حاصل  در این تحقیق دلالت بروجود آثار مثبت نا...

In the modern world economy, foreign direct investment plays a very important role. Empirical studies show that the simultaneous study of the impact of corporate tax and exchange rate uncertainty on FDI absorption has not received much attention. In this article, we refer to the tax on corporate profits and exchange rate uncertainty on attracting FDI in Iran during 1981 to 2018 were studied. Ot...

employees always concern about losing their job , or in other word , losing their income resources. for this purpose, every government requires strong system for covering these concerns. the unemployment insurance (ui) program’s can be used for achieving this goal. in this thesis, we price ui based on the insurance history of employee and the duration of being unemployed. we use the weibull dis...

‏‎the hypothesis is that recent and frequent exposure to lexical items leads to a more fluent production of speech in terms of rate of speech. to test the hypothesis , a one- way anova experimental design was carried out. 24 senior student of efl participated in a one-way interview test. data analyses revealed that those who were exposed frequently to the lexical items over a week prior to inte...