The Methodological Concept

The Sites have taken over the methodology concepts. The nuclear plant personnel become a major actor in the development of the preventive maintenance policy and will be ready to implement RCM on other systems. 

As previously outlined, mathematical modeling uses both the methodological concepts of unstructured and structured models. 

This section presents the theoretical material required for the methodology concepts and the proof of its effectiveness. A very brief review of model inversion is first recalled. Then the definitions of relative orders, orders of zeros at infinity, and essential orders are presented. These notions are also reviewed in the bond graph language for defining structural analysis in this framework. In particular the concepts of power lines and causal paths are defined. They will be used for checking the structural criteria of invertibility and differentiability. 

The methodological concept of quantitative safety assessment makes the hazards of ammunition and explosives handling comprehensibly and intelligibly visible and comparable. The responsible people know the responsibilities they actually take. 

Quantitative Structure—Activity Relationships (QSAR). Quantitative Stmcture—Activity Relationships (QSAR) is the name given to a broad spectmm of modeling methods which attempt to relate the biological activities of molecules to specific stmctural features, and do so in a quantitative manner (see Enzyme INHIBITORS). The method has been extensively appHed. The concepts involved in QSAR studies and a brief overview of the methodology and appHcations are given here. 

Another link exists between the PIF concept and the sociotechnical assessment methods described in Section 2.7 The checklists used in the TRIPOD methodology are essentially binary questions which evaluate whether the sets of PIFs making up each of the general failure types are adequate or not. The hierarchical sets of factors in HRAM are essentially PIFs which are expressed at increasingly finer levels of definition, as required by the analyst. The audit tool which forms MANAGER also comprises items which can be regarded as PIFs which assess both management level and direct PIFs such as procedures. 

The methodological misstep most responsible for this interpretive chaos began with the inclusion of elements other than strontium and barium. Although it required extensive research to reveal the bone-diet connection for strontium, this was reduced, evidently for simplicity, and not altogether without validity, to the idea that plants are higher in strontium, than is meat, and that bones reflect this dietary difference. Then with Gilbert s thesis suggesting that zinc apparently also reflects this, the concept as transcribed to... 

The concept of COI was first developed by Rice (Rice 1966, 1967 Rice and Cooper 1967 Rice et al. 1985). It assumes that resources could be used for another purpose if a disease did not exist. Figure 1 demonstrates the basic concept of COI. Most health economic studies assessing the total costs of a disease use this methodology (e.g., Keith and Shackleton 2006 Welte et al. 2000 Leidl et al. 1999 Henke et al. 1997 Xie et al. 1996 Harwood et al. 1983 Hodgson and Meiners 1979). 

The "chemical concepts" represent a part of the model and must share with the entire model other requirements, in particular simplicity, falsicability, and agreement with the general laws of physics [6]. These additional criteria make possible to keep under control the growth of methodological proposals. 

OSR) rather than autothermal reforming.23-26 The OSR concept has been reported for the first time in the reforming of methanol for H2 production27,28 and this methodology has been widely employed by others for the reforming of methanol and... 

The main purpose of the IUPAC Series on Analytical and Physical Chemistry of Environmental Systems is to make chemists, biologists, physicists and other scientists aware of the most important biophysicochemical conditions and processes that define the behaviour of environmental systems. The various volumes of the Series thus emphasise the fundamental concepts of environmental processes, taking into account specific aspects such as physical and chemical heterogeneity, and interaction with the biota. Another major goal of the series is to discuss the analytical tools that are available, or should be developed, to study these processes. Indeed, there still seems to be a great need for methodology developed specifically for the field of analytical/physical chemistry of the environment. 

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