any change in the refractive index of a laser active medium can lead to serious degradation of beam quality, laser beam modes, laser performance and variation in the intensity distribution. alteration in the refractive index of laser active medium is especially notable in high power lasers. it is clear that in the laser beam production, the pumping agent induces a great amount of heat which...

Famous Imam Khomeini's view, the founder of the Islamic Republic of Iran, in the similsrity of Israel to a canceric gland and its pursuit as a permanent policy of the system, since the beginning of the victory of the revolution so far, has always been challenging and has brought problems internationally and doubts inside the country. Considering the recent developments in the field of internati...

هدف از پژوهش حاضر مقایسه زبان آموزان مدارس دوزبانه و موسسات آموزش زبان انگلیسی به منظور تعیین هر گونه تفاوت معنادار در مهارت های درک مطلب، درک شنیداری، دانش دستوری و دانش واژگان است. اطلاعات لازم برای این پژوهش از مجموعه 197 نفر دانش آموز پسر در مدارس دوزبانه و موسسات آموزش زبان جمع آوری شده است. تمامی شرکت کنندگان به مدت چهار الی پنج سال در کلاس های زبان انگلیسی شرکت کرده اند. به منظور جمع آور...

One of the most remarkable miracles of the Holy Quran, which has been established as a scientific fact, is presented in verses 23-26 of Surah Maryam (AS). These verses focus on the effect of date palm on childbirth. Date palm is a fruit with active compounds, the high impact of which has been noted in the immaculate conception of Virgin Mary (AS). This study aimed to evaluate the known effects ...

   The similar verses of the Quran are one of the important topics in the history of Qur'anic interpretation and are considered by scholars and commentators. From similar verses and problems,is 172 Arif.   The first interpretations about the verse come to narratives Which is famous for the traditions of the universe. These traditions were later called into question by the Mu'tazilites and ratio...

Ayatollah Sobhani has commented on Surat al-Farghan in his work: Simaye Insani Kamil dar Qora, the Perfect Man's Image in the Qur'an. The present article is a comparative study of Ayatollah Sobhani's interpretation of this chapter in comparison with that of Allameh Tabatabai. Among the commonalities of these two interpretations is the use of the Qur'anic verses as the most important interpretat...

in reality, most structures involved in geotechnical engineering are three dimensional in nature, and although in many, plane strain or axisymmetric approximations are reasonable, there are some, for which 3-d treatment is required. the quantity of data, and the size of the various vectors and matrices involved in such analysis, increase dramatically. this has sever implications for computer r...