نتایج جستجو برای: iranian journal of natural resources 65
تعداد نتایج: 21235251 فیلتر نتایج به سال:
از فرآیند گرمای القائی در تکنولوژی و صنعت در موارد زیادی مانند جوش فلزات، بازپخت، متالورژی ]1[ رشد بلور ]4-2[، و ... استفاده می شود. در این روش ماده فلزی مورد نظر (قطعه کار مانند بوته)، داخل یک پیچه ی القائی قرار می گیرد. سپس با ایجاد یک جریان الکتریکی متناوب فرکانس بالا درپیچه (جریان رانشی)، میدان های الکتریکی و مغناطیسی متناوبی در اطراف پیچه ایجاد می شوند. با نفوذ این میدان ها در ماده فلزی مو...
nothing affects learners more than assessment, so it is important to involve them in assessment process. involvment of learners in assessment helps them to become autonoumos learners. despite this importance iranian learners specialy javanroodian ones are not activily involved in the process. hence the aim of this thesis is to invesrtigate thier ability in th eassessment process
the aim of this thesis is an approach for assessing insurer’s solvency for iranian insurance companies. we use of economic data with both time series and cross-sectional variation, thus by using the panel data model will survey the insurer solvency.
Since its original conception in 1959, by Nobel physicist Richard P Feynman, the notion of nanotechnology and its potential ramifications have not only created fascination,but also intense scientific efforts and scrutiny. One of the most promising applications of nanotechnology is in the context of medicine. Due to their unique size-dependent properties nanomaterials such as nanoparticles offer...
the application of a comprehensive model of communicative language ability (cla) to language teaching and testing has always been an imperative in l2 education since hymess proposal of communicative competence in the 1970s. recent l2 research has clearly underscored the importance of sufficient pragmatics representation as an essential component of cla in pedagogical and testing practices in l2...
O wning Natural resources has been beneficial for some Countries, but hurtful for some others. Optimum management of natural resources in the former group has enhanced economic growth, bad governance, however, has led to Dutch Disease in the latter group. Bad governance in Iran has created Dutch Disease, Rentier State, and Resource Curse, DRR as a characteristic triangle. As the Iran...
مقدمه:امروزه تعدد و کیفیت نامعلوم مجلات حیطههای مختلف علوم پزشکی، پژوهشگران را در انتخاب مجله مناسب برای انتشار نتایج تحقیقات علمی سردرگم کرده است. شاید معیارهای سنجش کیفیت مجلات بتوانند این مشکل را تا حدودی حل کنند؛ لذا مطالعه حاضر با هدف بررسی کیفیت مجلات حوزه زنان و مامایی بر اساس شاخصهای رتبهبندی مجلات در پایگاههای اطلاعاتی معتبر انجام شد. روش کار: این مطالعه به صورت توصیفی تحلیلی و به...
introduction: today, huge quantity of medical journals with indescribable quality, have confused health researchers while choosing a suitable journal to publish their scientific results. it seems that quality measuring criteria of journals could have solved this problem to some extent. in this study, we studied quality of journals of obstetrics and gynecology field indexed in the valid database...
Objectives: The aim of this study was to determine collaboration among authors who published articles in the Iranian Journal of Psychiatry and Clinical Psychology during 2002-2010. Method: In a scientometric study, original articles published in the Iranian Journal of Psychiatry and Clinical Psychology during 2002-2010 were included. Obtained data were analyzed by Excel software and descriptive...
BACKGROUND This study was designed to assess and compare the quantity and quality of Iranian and Turkish researchers working in the field of Parasitology from bibliometric point of view. METHODS To assess the contributions and achievements of the Iranian and Turkish parasitologists, bibliometric analysis was carried out based on the citation data retrieved from Web of Science. RESULTS The a...
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