The Effect Of Molecular Weight On The

The Effect of Molecular Weight on the

The combined use of mineral fertiliser and manure is regarded as a suitable fertilisation strategy to maintain agricultural soil productivity.

A long-term — field experiment was selected to determine how manure application affects soil gross S mineralisation and immobilisation, and plant-derived organic S, cysteine Cysand methionine Met biological decomposition by 35S, 14C, and 15N labelling. High organic manure application did not increase organic S content in the topsoil owing to the high mineralisation rate, but it increased the organic S content in subsoil where mineralisation rates were relatively lower. Protein bioavailability may have a more dominant role in soil S mineralisation than soil S-containing amino acids, owing to its higher concentration.

AB - Although S deficiency has been reported in plants worldwide, the belowground biogeochemical cycling of S is not well known. KW - Cysteine.]

The Effect of Molecular Weight on the - inquiry answer

Effect of Molecular Weight on Polymer Properties Almost all properties of a polymer depend on the molecular weight and its distribution, that is, low and high molecular weight polymers will have vastly different mechanical and thermo-physical properties. For example, polymeric materials consisting of a rather small number of repeat units often called oligomers1 will be soft or rubbery solids or low viscous liquids and will possess little or no strength whereas polymeric materials of high molecular weight will be solid, and have much improved mechanical properties. One usually observes a steep rise in the mechanical and visco-elastic properties with increasing molecular weight until a certain molecular weight is reached, beyond which the properties are nearly independent of the chain length, that is, all properties will eventually reach an asymptotic value. Some polymer properties that are very sensitive to the molecular weight include softening and melting point, glass transition temperature, solution and melt viscosity, solubility, mechanical strength and moduli. As an example, in the figure above the glass transition temperature Tg as a function of molecular weight is plotted for polystyrene. Not only the average molecular weight but also its distribution has a noticeable effect on the physical, mechanical, and processing properties. The Effect of Molecular Weight on the.

2021-08-24

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M1A2 Abrams Essay

2021-09-02

Daitaur

It is remarkable, very good information

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The Effect of Molecular Weight on the - inquiry answer

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