منابع مشابه
functions of “text criticism” of hadiths by early shiite hadith transmitters
shiite scholars have always been concerned with the question of authenticity of hadiths of infallible-innocent personalities from the very beginning. text criticism and consideration of contextual criticism of hadiths is a significant component in this connection. evidence available indicates that text criticism of hadiths, whose consideration had been rooted in shi‘a imams’ directions, has had...
متن کاملstudy of hash functions based on chaotic maps
توابع درهم نقش بسیار مهم در سیستم های رمزنگاری و پروتکل های امنیتی دارند. در سیستم های رمزنگاری برای دستیابی به احراز درستی و اصالت داده دو روش مورد استفاده قرار می گیرند که عبارتند از توابع رمزنگاری کلیددار و توابع درهم ساز. توابع درهم ساز، توابعی هستند که هر متن با طول دلخواه را به دنباله ای با طول ثابت تبدیل می کنند. از جمله پرکاربردترین و معروف ترین توابع درهم می توان توابع درهم ساز md4, md...
a contrastive study of rhetorical functions of citation in iranian and international elt scopus journals
writing an academic article requires the researchers to provide support for their works by learning how to cite the works of others. various studies regarding the analysis of citation in m.a theses have been done, while little work has been done on comparison of citations among elt scopus journal articles, and so the dearth of research in this area demands for further investigation into citatio...
Optical Transmitters
Types of Modulation. Figure 7.1 illustrates two alternative ways to generate a modulated optical signal. In Fig. 7.1 (a), the laser is turned on and off by modulating its current; this method is known as direct modulation. In Fig. 7.l(b), the laser is on at all times, a so-called continuous wave (CW) laser, and the light beam is modulated with a kind of optoelectronic shutter, a so-called modul...
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ژورنال
عنوان ژورنال: Academic Medicine
سال: 1957
ISSN: 1040-2446
DOI: 10.1097/00001888-195704000-00023