Division matrix" planting

The hazard identification methods presented in Sections 1.5.1 to 1.5.6 above are all based on strongly systematic procedures. In the check list method, the systematic is provided by the check list itself. The comprehensiveness can be verified in the matrix (see Figures 1.4 and 1.5). With the FMEA, the systematic is provided by the division of the system into elements and the failure modes considered. In the HAZOP study, the systematic stems from the division of the plant into nodes and lines, then the systematic application of the keywords. With the decision table method, the systematic is inherent to the table. For the FTA and ETA, the systematic is given by the tree and the logical ports. Nevertheless, the work of the team must be traceable, even by persons who did not participate to the analysis. Thus, it is recommended to also document the hazards that were not considered as critical. 

In August 1991, the management structure of the Fine Chemicals Division of Hickson International, pic was reorganized. The structure changed from a linear structure to a matrix in which the role of plant manager was eliminated. Instead, the plant was managed through coordination of senior operatives who were appointed to act as team leaders. 

Plant Cw. are exceedingly complex structures which have largely defied detailed analysis. The precursor of the Cw. is the cell plate, a non-cellulose structure formed between the 2 daughter nuclei during mitotic division of the cell. After the new eell membranes have formed on either side, the cell plate (a strongly hydrated structure) matures to a middle lamella . As growth proceeds, the area of the new wall is increased by intussusception, i. e. incorporation of new material within the existing matrix. The thickness increases by apposition as new layers of wall material are added. 

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