محاسبه وزن مواد بار کوره های ذوب، با موازنه جرم عناصر آلیاژی مواد ورودی و خروجی انجام می شود. اما فرایند ذوب، پیچیدگی هایی دارد، که اغلب در محاسبات نادیده گرفته می شود، و باعث عدم اطمینان در وزن مواد بار، اصلاح چندباره ذوب، تأخیر در تخلیه، افزایش هزینه و کاهش کیفیت مذاب می شود. هدف پژوهش حاضر، توسعه مدلی است، که نه تنها وزن مواد اولیه برای ترکیب شیمیایی ذوب هدف را محاسبه و بهینه سازی کند، بلکه هدررفت ناهمگن عناصر آلیاژی، ناخالصی های غیرفلزی مواد بار، و اصلاح ذوب اولیه در کوره را نیز در نظر بگیرد. مقاله حاضر، فرمولاسیون یک مدل محاسبه بار کوره ی ذوب آلیاژ را ارایه می کند، که بر اساس موازنه جرم غیرخطی و بهینه سازی استاندارد توسعه یافته و همراه با یک الگوریتم حلقه ی تکرار برای حل عددی، ویژگی های موردنظر را برای ذوب تمام آلیاژها در برمی گیرد. برای ارزیابی مدل، یک مساله ذوب آلیاژ برنج با 7 عنصر آلیاژی و 8 نوع مواد بار در مقیاس صنعتی طرح و بررسی گردید. با حل مساله به کمک مدل توسعه یافته، کسر وزنی مواد اولیه، وزن و ترکیب شیمیایی ذوب اصلاح شده و کمترین هزینه مواد محاسبه گردید. مدل پیش بینی کرد که وزن کل مواد ورودی 9909 kg (همراه با ذوب اولیه)، هدررفت مواد معادل 262 kg، وزن نهایی مذاب اصلاح شده 9646 kg و بازدهی ذوب 97.3% باشد. تحلیل بهینه بودن جواب، تایید کرد که کمترین هزینه مواد به دست آمده است. مدل استاندارد غیرخطی، ابزاری سریع برای بهینه سازی هزینه و محاسبه بار کوره است که پتانسیل هایی برای کاهش هزینه و تسهیل اتوماسیون صنعتی فرایند ذوب ایجاد می کند.

According to the importance of weight gain during pregnancy and its relation with the type of mother's nutrition, we decided to compare the primary mother weight and her weight gain during pregnancy to the neonate weight after delivery in rural and urban areas of Isfahan. Therefore a retrospective and explaining and analysis study between 2000 samples of women coming to the center of health of lsfahan during 6 months in 1999 was done of which 400 ones were randomly chosen and required information as primary mother weight, her weight gain and neonate weight were gathered. The collected data was analysed with SPSS software.There was a meaning relation between the primary mother weight and her weight gain, also between mother's weight gain and the neonate weight. But there was no relation between the neonate weight at and birth time in city and villages.Although there was a meaning relation between mother's primary weight and her weight gain with neonatal weight, this relation is weak and there are lots of exceptions that shows the interference of other factors.

The word “Cycle” (Dowr in Persian) has been used in the old prosody, but cyclic meter has been discussed anymore. Cyclic meters, in modern prosody, refers to a group of intermitted-basis meters that standing a long syllable instead of stretched syllable at the end of half-hemistich makes no disorder in the meter, and the poet is allowed to use a stretched syllable in half-hemistich of these meters instead of a long syllable. The definition of cyclic meter and its circumstances have been always controversial between experts. Cycle in music and old prosody, explanation of cyclic meters circumstances, a critical analysis of cyclic meters features and their differences with intermitted-basis meters are being studied in present paper. The definition of "periodicity" and "the silence time in half-hemistich" for the meters in Persian poetry and the origin of poetic license will subsequently be reviewed and the distinction between cyclic and non-cyclic prosodies will be discussed on the basis of these two features.

In Islamic civilization, rhetoric is the product of a great attempt to find out the secrets of Quranic language; nevertheless, the achievements of such studies have been mechanically applied to Persian which, compared to Arabic, has a different linguistic system and literary conventions. This approach has brought about problems in defining literary terms, internal rhythm being one of them. This article, through comparing the classical and modern understandings of internal rhythm, and also by considering the history of studies on this concept, examines the quality of meter in internal rhythm.