Alternative Methods for Antioxidants Determination

islanding detection methods for microgrids

امروزه استفاده از منابع انرژی پراکنده کاربرد وسیعی یافته است . اگر چه این منابع بسیاری از مشکلات شبکه را حل می کنند اما زیاد شدن آنها مسائل فراوانی برای سیستم قدرت به همراه دارد . استفاده از میکروشبکه راه حلی است که علاوه بر استفاده از مزایای منابع انرژی پراکنده برخی از مشکلات ایجاد شده توسط آنها را نیز منتفی می کند . همچنین میکروشبکه ها کیفیت برق و قابلیت اطمینان تامین انرژی مشترکان را افزایش ...

development of different optical methods for determination of glucose using cadmium telluride quantum dots and silver nanoparticles

a simple, rapid and low-cost scanner spectroscopy method for the glucose determination by utilizing glucose oxidase and cdte/tga quantum dots as chromoionophore has been described. the detection was based on the combination of the glucose enzymatic reaction and the quenching effect of h2o2 on the cdte quantum dots (qds) photoluminescence.in this study glucose was determined by utilizing glucose...

Alternative Methods for Leed Ivsurface Structural Determination: Direct Methods and Analysis of Off-normal Incidence Curves

Low-energy electron diffraction takes advantage of strong interactions between electrons and atoms to achieve highly sensitive and accurate surface structural determinations. The prize to pay for that sensitivity is that an appropriated analysis should include costly multiple scattering calculations. Dynamical LEED-IV calculations based on a trial and error procedure, present some limitations f...

Herbal Antioxidants as Rejuvenators in Alternative Medicine

Determination of Antioxidants in Medicinal Herbs

The evaluation of antioxidant capacity, total phenolics, vitamin C content and identification of several phenolic acids and flavonoids was performed in the following fresh and dried herbs widely used in folk medicine throughout Slovenia and elsewhere: elder berries (Sambucus nigra L.), barberries (Berberis vulgaris L.), rowan tree berries (Sorbus aucuparia L.), coltsfoot flowers (Tussilago farf...