Composites residual life

Z Hashin, Cumulative damage theory for composite materials residual life and residual strength methods . Compos Sd Technol 1985 23 1-19. 

The effect of synthesis gas composition on conversion, catalyst life, carbon black formation, etc. was determined in numerous tests. Characteristic variables in the synthesis gas composition are the H2/CO ratio, residual C02 content, and content of trace components in the form of higher hydrocarbons and catalyst poisons. 

Given the following amino acid sequence, estimate (ProtParam of ExPASy) its amino acid composition, numbers of charged residues, extinction coefficient, estimated half-life, and instability index of the protein. Elaborate briefly how extinction coefficient, half-life and instability index are estimated. 

Natural organic matter (NOM) is derived from plant or microbial residues, or it is produced in situ in water by life cycles and by a variety of decomposition pathways. Humic material (HM) is found in surface water. Its concentration is typically about 50% of the DOM. HM itself consists of the fulvic acid (FA) fraction that is soluble in water of all pH values and has an average molar mass M of 500-2000 g moh. In contrast, the humic acid (HA) fraction is only soluble under acidic conditions. HA has an average molar mass M of 2000-5000 g mol and higher (Sigg and Stumm, 1996). The composition and structure of HM or of hu-... 

Abbreviations and symbols used not given aa comp., amino acid composition dep., dependent diff., dift erent gene seq., sequence deduced from the nucleotide sequence proi. seq., sequence deiemiined on protein level stab, stabilized subs, subunits /o s( C), half-life of inactivation at the given temperature percentage values in the Tliermostability column indicate residual activity after incubation at the given temperature ... 

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