نتایج جستجو برای: nuclear energy

تعداد نتایج: 883716  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تهران 1386

چکیده ندارد.

محمدی, سعید, پذیرنده, علی, گلیان, فرشته,

The heat transfer process from pellet to coolant is one of the important issues in nuclear reactor. In this regard, the fuel to clad gap and its physical and chemical properties are effective factors on heat transfer in nuclear fuel rod discussion. So, the energy distribution function of electrons with an energy about 0.5 MeV in fuel rod gap in Busherhr’s VVER-1000 nuclear reactor was investiga...

Journal: :مجله دانشکده حقوق و علوم سیاسی 0
ناصر هادیان

the objective of this paper is to provide an overview of various approaches on iran’s nuclear program and the frameworks within which the approaches can be located. it first addresses different views held in relevant think tanks and academic circles in the u.s. regarding iran’s nuclear program, including motivation-based and consequence-based arguments in their different variants. then iranians...

Journal: :Himalayan Physics 2015

ژورنال: اقتصاد مالی 2013
ساناز نمازی معصومه شجاعی, مهتاب بیراوند

در طی سال‌های اخیر روند بسیار فزاینده‌ای در مصرف انرژی در سطح جهان به‌ویژه در بخش برق ایجاد گردیده که با توجه به حساسیت‌های جهانی در حفظ محیط زیست و کاهش انتشار گازهای گلخانه‌ای، منجر به کاربرد سایر منابع غیرفسیلی تولید برق همچون انرژی‌های تجدید پذیر (باد، برق آبی و خورشیدی) و نیز انرژی هسته‌ای شده است. عوامل متعددی درانتخاب گزینه مناسب از بین منابع متعدد تولید برق دارای اهمیت می‌باشند که از آن...

Journal: :Science 1972
J T Edsall

The technical principles and practices of the civil nuclear industry are described with particular reference to fission and its products, natural and artificial radioactivity elements principally concerned and their relationships, main types of reactor, safety issues, the fuel cycle, waste management, issues related to weapon proliferation, environmental considerations and possible future devel...

اعظم انبارکی, , زهرا امینی لاری , , زهره کارگر, ,

The knowledge of nuclear reaction rates is important for studying energy production and nucleosynthesis, especially in reactions including nuclei far from stability line, which are not accessible experimentally so far and thus it is necessary to be able to predict reaction cross sections in low excitation energies. Nuclear level density is one of the important key quantities in many nuclear phy...

Journal: یافته 2006
ahmad Bitavafan-Rahabi, hosein Rajabi, mohammad reza Farsi-nejad, samira Resaneh,

Background: The nuclear medicine systems are very sensitive to the variation of the magnetic field. Photomultiplier tubes amplify low energy light signal and change it into electrical current. Low magnetic field can produce some variations in uniformity and special resolution of SPECT systems. In this study, we tried to evaluate the effects of magnetic field on the function of nuclear medic...

Journal: :سیاست 0
زهرا نوع پرست

in december 1953, the us president, general dwight d. eisenhower delivered his “atoms for peace” speech at the united nations' general assembly, which called for the promotion of peaceful uses of nuclear energy under special international agency. this proposal became the starting point for creating the iaea in 1957 and adopting npt in 1968. the atoms for peace initiative established the pr...

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