منابع مشابه
A C Onceptual F Ramework on F Uturistic S Tudies
In early days the main emphases were on the cognitive aspects of learning and traditional instructions of teaching in the classroom using outdated and conventional techniques. But today in this world of constant innovations and discoveries, scientists and gadget-experts are continuously searching for one or the two technological devices a day. Nodoubt technology has made our life much easier an...
متن کاملOrganozinc Coordination Chemistry and Catalytic Effects of Organozinc Coordination Compounds
A review of the present state of organozinc coordination chemistry. with special emphasis on compounds of the type RZnX is given. Their preparation as well as some factors determining their structure and stability are discussed. Certain organozinc coordination compounds have been found to be effective catalysts for cyclo-oligomerization and polymerization reactions. in particular of oxygen-cont...
متن کاملنامساوی های زیرجمعی ماتریسی برای (f(a+b و(f(a)+f(b
در سال 1999 اندو وژان یک نامساوی زیر جمعی برای توابع مقعر عملگری بدست آوردند. ما این نامساوی را به همه توابع مقعر توسعه می دهیم: ماتریس های نیمه معین مثبت a وb تابع مقعر غیرمنفی f روی (&,0] را در نظر می گیریم. برایس هر نرم متقرن داریم. ||| (f(a)+f(b) ||| > |||f(a+b)|||
15 صفحه اولT F S C
The concept of model transformations is of increasing importance in different areas of Computer Science, but up to now, there is a lack of common understanding concerning the mathematical and practical point of view. In this paper, we discuss some of the different aspects. Especially interesting is the new proposal of the POPL’07 keynote speaker Don Batory claiming that model transformations sh...
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ژورنال
عنوان ژورنال: Journal of Chemical Education
سال: 1970
ISSN: 0021-9584,1938-1328
DOI: 10.1021/ed047pa790.1