Definition phase

Ionization in the condensed phase presents a challenge due to the lack of a precise operational definition. Only in very few cases, such as the liquefied rare gases (LRG), where saturation ionization current can be obtained at relatively low fields, can a gas-phase definition be applied and a W value obtained (Takahashi et al., 1974 Thomas and Imel, 1987 Aprile et al., 1993). 

During the experiments conducted up to this point, it was, therefore, not possible to give the solid bulk phase definite forms. Still, it could be shown by the experiments illustrated in Fig. 5 that the rate of reaction depended on the size of the solid phase which was here varied between 0.1 and 2.0 g. 

The predominant role assigned to reflection rather than to experimentation. Reflection is the essential pan of any experimentation. It is neces.sary not only during the initial phase (definition of the problem but during each step of the research process. The new information obtained by experimentation must be analyzed, interpreted, and added to the information previously obtained to redefine the best strategy. The experimentation should always provide the maximum of useftl information, whatever the adopted strategy. 

The International Standard ISO 14040 dictates that LCA include 4 phases definition of goal and scope, inventory analysis, impact assessment and interpretation of results (Fig 2). 

Photograph 3-5 Large, round, slightly ragged belite blue subhedral to anhedral alite and matrix of aluminate (CjA, arrow) and ferrite. Superimposed nital over KOH produces increased clarity in matrix phase definition. (S A6615)... 

Phase definition and establishment of requirements for safety life cycle activities is one of the major objectives which also includes planning and technical activities to ensure SIS meet the safety requirements. Major issues are listed in the Table VI/5.1.2-1 (see Fig. Vl/5.0-1 or Fig. 8 of standard). 

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