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Showing 1 to 20 of 950 for “"chemical composition"”.
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Chemical composition study of Galactic stellar substructures /
… main atmospheric parameters and abundances of 21 chemical elements have been determined. The abundance pattern of programe stars has similar characteristics to those of the Galactic thick disc, which might suggest that their formation histories are linked. We compare our results with other …
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A robust pathfinding algorithm using chemical composition
… pathways, they also create the challenge of biochemically insensible shortcuts through pool or currency metabolites. In the past, strategies to circumvent such irrelevant pathways have included weighing networks using the degree of nodes or the manual curation of edges in the metabolic network. …
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The chemical composition and origin of moldavites.
Massachusetts Institute of Technology. Dept. of Geology and Geophysics. Thesis. 1965. Ph.D.
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Evolution of chemical composition along river drainage networks
… chemistry associated with a change in bedrock composition from intrusive quartz diorite (upstream) to volcaniclasitc material (downstream). Overall, after sea-salt correction, most solutes decreased consistently with distance downstream. The silica to alumina ratio, however, changed sharply …
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Chemical composition of Saturn's rings and icy satellites.
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth and Planetary Science, 1974.
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Cheddar cheese : Its texture, chemical composition and rheological properties.
… between the textural attributes and the chemical and rheological parameters were investigated. No relationship between chemical composition and texture was identified, but correlations between the rheological parameters and the textural attributes were not uncommon. Multiple regression …
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Chemical composition and fiber structure as factors affecting fiber fermentation
Procedures used to hydrolyze plant polysaccharides to their monomeric components were compared and a high performance liquid chromatographic (HPLC) technique for the analysis of monosaccharides was developed. Procedures using sulfuric acid as the hydrolytic agent were superior compared to a …
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Enabling Routine Chemical Composition and Volatility Distribution Measurements of Aerosols
Traditional online measurements of the chemical composition and other physicochemical properties (such as volatility and oxygenation) of particulate matter have relied on expensive and complex research-grade instrumentation based on mass spectrometry and/or chromatography. However, routine …
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Studies on the production, chemical composition and nutritional value of mushroom
Chemical and biological assays were performed with freeze-dried samples of the cultivated mushroom Agaricus brunnescens. Dried fruitbodies were subjected to proximate analysis, and protein, carbohydrates, fat, moisture, ash, and amino acid contents were determined. Diets containing 10% mushroom …
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Impact of Juice Clarification Processes on Chemical Composition of Hard Cider
… chemistry, YAN concentration and amino acid composition in juice, polyphenol concentration and composition in juice and cider. Different clarification treatments affected the YAN concentration and amino acid composition differently. Polyphenol concentration in juice was decreased and …
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The Effects of Storage on the Chemical Composition of Used Thermal Water
… This study assessed the changes in the chemical compositions of used thermal waters in one of Europe largest thermal bath, Hungarospa in Hajdúszoboszló, Hungary, it took a holistic investigation on the research subject and critically looked into the physical and chemical parameters of …
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Selection Indexes for Chemical Composition of Soybean (Glycine Max (L.) Merrill) Seeds
Made available in DSpace on 2014-12-14T14:37:30Z (GMT). No. of bitstreams: 1 8009122.pdf: 1837619 bytes, checksum: ddf7cb2147dbece58cac53f0c609d0ae (MD5) Previous issue date: 1979
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Chemical Composition of Membranes and Other Fractions of Bacillus Megaterium Strain Km
Made available in DSpace on 2014-12-05T21:45:32Z (GMT). No. of bitstreams: 1 6001695.pdf: 8965953 bytes, checksum: 5629b582202fe2fa87404d1473e11ebc (MD5) Previous issue date: 1960
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Studies on the Chemical Composition and Cytology of Spores of Bacillus Coagulans
Made available in DSpace on 2014-12-05T19:06:48Z (GMT). No. of bitstreams: 1 6100151.pdf: 6103613 bytes, checksum: 1c54c791ec5f847cd4959d1a60b82afe (MD5) Previous issue date: 1960
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The properties of the SC stars and chemical composition of UY centauri
… Feast (1971) and secondly, with determining the chemical composition of UY Cen, the brightest member of the group. An atlas, based on 13 A mm-1 spectra is presented for the S star π Gru and the C star 19 Psc between 5430 and 6850 A. In order to overcome the problems caused by the high density of …
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Feed attractants in aquaculture - the chemical composition of aquacultured Ulva lacinulata (Chlorophyta)
… nutrient variation on the lipid and fatty acid composition of aquacultured Ulva and evaluated the volatile organic compounds produced by this seaweed. Crude Ulva extract, prepared from solvent extraction (dichloromethane - methanol), was fractionated to produce nine fractions (F1 → F9), with …
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Petrography, chemical composition, and stratigraphic setting of the coals of North-Central Missouri
… Missouri. The stratigraphic setting and chemical and petrographic characteristics of 43 complete samples of coal recovered from 13 diamond drill holes in the exploration program in north-central Missouri are major contributions of this study. These samples represent twelve different coal …
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