نتایج جستجو برای: based on solar calendar
تعداد نتایج: 9192360 فیلتر نتایج به سال:
abstract nowadaysphotovoltaic solar cells (pvs) areacknowledged the fastest growing energy technology in the word, however, they only account for only fraction of current global renewable energy capacity. it isrecognized that this incomplete market penetration has been largely a result of the technology’sexcessive cost. so researchers are trying to find innovative, economic way with theaim of ...
the official iranian calendar is a solar one that in both the length and the first day of its year is based not on convention, but on two natural (i.e. astronomical) factors: a) the moment of coincidence of the centre of the sun and the vernal equinox during the sun’s apparent revolution around the earth; and b) the time length between two successive apparent passages of the sun’s center across...
abstract the present study was conducted in order to investigate the impact of an integrated model of form-focused and task-based instruction on iranian efl learners vocabulary learning and retention.it also aimed to detect efl learners attitude towards the implementation of form-focused task-based vocabulary instruction in the classroom. in order to address the purposes of this study, a sampl...
the purpose of the present study is to investigate the effects of moon phases on suicides, car accidents, and psychic crises. the data were obtained from archives of imam khomeini hospital, traffic office, and razi psychiatric hospital in tabriz. the sample consisted of 808 suicide cases and 6301 cases of city car accidents in 1989, and 3632 cases admitted to psychiatric hospital during the yea...
the chronobiology of the acute myocardial infarction (ami) is an interesting matter for recognition of the biological mechanism that might trigger ami. the present study was aimed to investigate the circadian, seasonal and circannual variation of the ami occurrence with solar, lunar, and christian months. a retrospective study of 1174 cases with diagnosis of ami was conducted. all cases include...
The purpose of the present study is to investigate the effects of moon phases on suicides, car accidents, and psychic crises. The data were obtained from archives of Imam Khomeini Hospital, Traffic Office, and Razi Psychiatric Hospital in Tabriz. The sample consisted of 808 suicide cases and 6301 cases of city car accidents in 1989, and 3632 cases admitted to psychiatric hospital during the yea...
Ramadan is a sacred month for Muslims all around the world. During this lunar-based month, healthy adult Muslims are obligated to abstain from eating, drinking, smoking, or using oral medications from predawn to sunset. Followers will typically eat just after sunset and again before dawn (1). The Islamic lunar Hijri calendar is 11 days shorter than the Gregorian solar calendar, and therefore, t...
the methods which are used to analyze microstrip antennas, are divited into three categories: empirical methods, semi-empirical methods and full-wave analysis. empirical and semi-empirical methods are generally based on some fundamental simplifying assumptions about quality of surface current distribution and substrate thickness. thses simplificatioms cause low accuracy in field evaluation. ful...
this study aimed to investigate the effects of listening strategy training on iranian efl learners listening comprehension and use of such strategies. this work, employing an experimental methodology, was conducted among 60 adult efl learners from a language institute in isfahan, iran, as participants. the participants, who were selected based on the results of a placement test, were assigned t...
this study was conducted to investigate the effect of favorite-text on iranian intermediate efl learners’ vocabulary development. sixty learners from nour-al-mahdi english institute participated in the present study. having been homogenized by oxford placement test (opt), they were randomly assigned into two groups of 30, control and experimental. then both groups sat for a pre-test which was a...
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