منابع مشابه
Chemical Composition, Mineral and Nutritional Value of Datura Metel Seed
In the past few decades there has been an exponential growth in the field of herbal medicine to be a better option for their healthcare needs, owing to their natural origin and reduced side effects. Datura spp. is one of the 50 fundamental herbs used in traditional medicine. The dry flower, particularly the violet coloured, if rolled and used like cigar, will help to relive the asthma or wheezi...
متن کاملEstimation of coal swelling index based on chemical properties of coal using artificial neural networks
Free swelling index (FSI) is an important parameter for cokeability and combustion of coals. In this research, the effects of chemical properties of coals on the coal free swelling index were studied by artificial neural network methods. The artificial neural networks (ANNs) method was used for 200 datasets to estimate the free swelling index value. In this investigation, ten input parameters ...
متن کاملChemical composition and heavy metals in bottled mineral drinking waters in Bandar Abbas
Introduction: In recent years, attraction toward drinking bottled mineral water has increased. Therefore, chemical composition and safety of these waters considering trace elements and heavy metals should confirm the national or international standard limits. The aim of this study was to evaluate and comparison of the mineral and heavy metal composition of bottled waters in Bandar Abbas with Ir...
متن کاملA CARBON - 13 NMR INVESTIGATION OF THE CHEMICAL COMPOSITION OF COAL DERIVED LIQUIDS Ronald
The recen t increased importance o f coa l as an energy source has d i c t a t e d t h a t I more knowledge be ob ta ined about the bas i c molecular p r o p e r t i e s o f t h e s o l i d and i t s conversion p r o p e r t i e s . has been employed on a l i m i t e d bas i s f o r t h e ana lys i s o f coal de r i ved l i q u i d s as w e l l as pet ro leum samples. Extens ive C-13 NMR work h...
متن کاملThe relationship between mutagenicity and chemical composition of polycyclic aromatic compounds from coal pyrolysis.
The polycyclic aromatic compounds (PAC) produced from the pyrolysis of a bituminous coal at temperatures of 1125 to 1425 degrees K prove to be mutagenic to S. typhimurium, both in the presence and in the absence of postmitochondrial supernatant (PMS) prepared from Aroclor 1254-induced rat liver. Mutagenicity of the PAC samples measured in the absence of PMS exhibits little dependence on pyrolys...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1879
ISSN: 0036-8733
DOI: 10.1038/scientificamerican09061879-3057asupp