منابع مشابه
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 ...
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The synthetic anabolic steroids have structural features which distinguish them from the natural steroid hormones. It should therefore be possible to detect the taking of these substances by testing for their presence in either blood or urine. At present suitable techniques include gas chromatography, mass spectrometry and radioimmunoassay. For practical and psychological reasons urine tests ar...
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ژورنال
عنوان ژورنال: FEBS Letters
سال: 1977
ISSN: 0014-5793
DOI: 10.1016/0014-5793(77)81065-x