منابع مشابه
Electrocoagulation in the treatment of industrial waters and wastewaters
Chemical coagulation is commonly used in raw water and wastewater treatment plants for the destabilisation of pollutants so that they can be removed in the subsequent separation processes. The most commonly used coagulation chemicals are aluminium and iron metal salts. Electrocoagulation technology has also been proposed for the treatment of raw waters and wastewaters. With this technology, met...
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تحقیق حاضر به بررسی درک دانشجویان از مزایا و معایب آزمون های کامپیوتری تافل و تاثیر جنسیت بر درک آنها پرداخته است. شرکت کنندگان در این تحقیق 100 نفرزبان آموز مرد و زن بودند که در آزمون کامپیوتری تافل در ایران شرکت کرده بودند. پرسشنامه یی که در مورد مزایا و معایب آزمون های کامپیوتری در مقایسه با آزمون های کاغذی توسط محقق تهیه شده بود جهت تکمیل به این افراد ارایه شد. داده های بدست آمده در این مطا...
15 صفحه اولValidation of in vitro Tests for Skin Corrosivity.
There have been several highly significant achievements in the area of alternatives for skin corrosivity testing in the last three years, most notably: (a) the validation, and subsequent endorsement, of two replacement alternative tests for skin corrosivity (the rat skin transcutaneous electrical resistance [TER] and EPISKINtrade mark human skin model assays) by the European Centre for the Vali...
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The efforts in testing high-volume consumer ICs are continuously under pressure in terms of cost and guaranteed quality. Especially the analogue and mixed-signal parts often require complex (e.g. in frequency domain), time-consuming, and hence expensive tests. Moreover, the anticipated quality level of ICs is usually not directly related to realistic faults and field returns, but merely estimat...
متن کاملExecutive Summary: ICCVAM Review of In Vitro Dermal Corrosivity Methods
Corrosive substances are defined as chemicals causing visible destruction or irreversible alterations in living tissue by chemical action at the site of contact (29 CFR 1917.28). Dermal corrosivity testing is conducted to identify chemicals that potentially pose this hazard to humans. U.S. Federal regulations and guidelines include test methods for assessing dermal corrosivity. Testing data is ...
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ژورنال
عنوان ژورنال: CORROSION ENGINEERING DIGEST
سال: 1965
ISSN: 0010-9355,1884-1155
DOI: 10.3323/jcorr1954.14.4_159