نتایج جستجو برای: numerov type
تعداد نتایج: 1342023 فیلتر نتایج به سال:
among the low–dimensional allotropes of carbon, nanotubes and graphene have attracted very much attention from nano–science and nanotechnology specialists. they have been proposed as building blocks in nanometer device engineering. however, these structures are not defect–free. in this thesis, we focused on defective carbon nanotubes and graphene, and studied the effect of couple of very common...
یکی از مهمترین علائم شناخت و تکامل گرافیک متحرک مربوط به حرکت در حروف است و نوعی بیان که بوسیله حرکت اتفاق می افتد . اگر تایپوگرافی که به معنای کلی حساسیت بصری بخشیدن به نوشتار است ،نشانه نوشته متحرک(moving type) ابزاری است که بوسیله حرکت و جانبخشی، این حساسیت و تأکید را دو چندان می کند .
this study investigated the effects of planning on second-language written production with regard to task type. the participants were 75 iranian learners of english as a foreign language attending a private foreign language institution. they were asked to complete two different types of writing tasks (expository writing task and argumentative writing task) in different planned conditions (indiv...
as far as bandura’s (1977) conceptualization of the sense of self-efficacy is concerned, it is argued to be context- and even task-specific, compared to other concepts like self-esteem (brown, 2000); therefore, upon the previous research studies, related theories and definitions, and the ideas and views obtained from the interviews conducted with the scholars, the current research study aimed a...
abstract background: type 2 diabetes mellitus is one of the psychosomatic disorders that stress playing an important role in causing, severity, and long term situation. the present study conducted to determine the association of personality type a and b to type 2 diabetes mellitus in patients’ referring to diabetes center. methods: in the descriptive correlation study, 50 diabetic type 2 patien...
the present study aimed at investigating the relationship between iranian efl teachers’ classroom management orientations and their teaching styles. additionally, the difference between male and female teachers’ teaching styles and classroom management orientations and their relationship with experience and age were explored. three hundred efl teachers filled in attitudes and beliefs on classro...
introduction to define the clinical features, biochemical and histological findings and outcome of three forms of autoimmune hepatitis. materials and methods in a cross sectional study between november 2001 to january 2008 in tehran and mashhad university of medical sciences, 61 children who diagnosed as aih (40 girls and 21 boys) have been analyzed for their clinical, serological, and histol...
توده گرانیتوئیدی میشو متعلق به شمال غربی زون ایران مرکزی در شمال غرب ایران می باشد که به درون سنگ های دگرگون شده پرکامبرین نفوذ کرده است. بر اساس مطالعات پتروگرافی، این توده متشکل از چندین توده از سنگ های گرانیتی پان آفریکن می باشد که طیفی از دیوریت تا لوکوگرانیت را در بر می گیرد. ترکیبات حدواسط این مجموعه شامل آمفیبول گرانودیوریت، بیوتیت گرانیت و گرانیت دومیکایی می باشند. کوارتز ، پلاژیوکلاز ،...
Computation of the Schrodinger equation energy levels is very important in physics. For example we can use these levels to calculate the absorption coefficient and light refraction in a material as well as calculation of the interband and intersubband transition energies. Density of states of the system can also be obtained by using the energy levels. Thereafter we can determine that the system...
مناسب ترین روش برای محاسبه منحنیهای انرژی پتانسیل یک مولکول دو اتمی با استفاده از ثابتهای طیف سنجی، یک روش عددی به نام rydberg – klein – rees (rkr) است، که مبتنی بر کوانتش انتگرال عمل در سیستم هایی است که حرکت تناوبی دارند. i=???pdq=? h(?+1/2) این روش برای حالتهای الکترونی ای که با روشهای طیف سنجی قابل دسترس هستند وبرای آنها تعداد قابل ملاحظه ای ثابتهای مولکولی شناخته شده است به کار می رود. ...
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