نتایج جستجو برای: r3
تعداد نتایج: 3639 فیلتر نتایج به سال:
industries in developing countries add new production lines producing altogether different waste stream. this newer waste invariably finds its way to existing anaerobic treatment system causing gradual/sudden change in feed substrates affecting its steady performances. this study investigates steady response of anaerobic reactors subjected to sudden change in feed substrate types, assesses its ...
در این پایان¬نامه واکنش سه ¬جزئی هسته¬ دوست¬ پیریدین و مشتق¬های آن با دی¬اتیل¬استیلن دی¬کربوکسیلات به عنوان پذیرنده مایکل در مجاورت هگزاکلرواستون به عنوان الکترون ¬دوست فعال در حلال دی¬اتیل اتر بررسی شده است. بررسی این واکنش¬ها نشان داد که فرآورده هتروسیکل ایندولیزین را هنگامی¬که هسته¬ دوست، پیریدین و پارا-(n,n- دی میتل) پیریدین (dmap) باشد بدون تشکیل فرآورده هتروسیکل اکسازین، تهیه می¬شود ولی ب...
The decomposition space R3/Wh associated with the Whitehead continuum Wh is not a manifold, but the product (R3/Wh) × Rm is homeomorphic to R3+m for any m ≥ 1 (known since the 1960’s). We study the quasisymmetric structure on (R3/Wh) × Rm and show that the space (R3/Wh) × Rm may be equipped with a metric resembling R3+m geometrically and measure theoretically—it is linearly locally contractible...
The establishment of planar cell polarity in the Drosophila eye requires correct specification of the R3/R4 pair of photoreceptor cells. In response to a polarizing factor, Frizzled signaling specifies R3 and induces Delta, which activates Notch in the neighboring cell, specifying it as R4. Here, we show that the spalt zinc-finger transcription factors (spalt major and spalt-related) are part o...
The current paper is aimed in getting more insight on three main points concerning large-scale astrophysical systems, namely: (i) formulation of tensor virial equations from the standpoint of analytical mechanics; (ii) investigation on the role of systematic and random motions with respect to virial equilibrium configurations; (iii) extent to which systematic and random motions are equivalent i...
PURPOSE To identify a new mouse mutation developing early-onset dominant retinal degeneration, to determine the causative gene mutation, and to investigate the underlying mechanism. METHODS Retinal phenotype was examined by indirect ophthalmoscopy, histology, transmission electron microscopy, immunohistochemistry, Western blot analysis, and electroretinography. Causative gene mutation was det...
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