Criticality analysis

Furtak T E and Reyes J 1980 A critical analysis of the theoretical models for the giant Raman effect from adsorbed molecules Surf. Sc/. 93 351-82... 

BS 5760 1991 Part 5 - Guide to Failure Modes, Effects and Criticality Analysis (FMEA and EM EC A). Reliability of. Systems, Equipment and Components. London BSI. 

P. C. Paris and F. Erdogan. A Critical Analysis of Crack Propagation Laws , Journal of Basic Engineering, Trans. ASME, Vol. 85, 1963, p. 528-534. 

We previously encountered failure modes and effects (FMEA) and failure modes effects and criticality analysis (FMECA) as qualitative methods for accident analysis. These tabular methods for reliability analysis may be made quantitative by associating failure rates with the parts in a systems model to estimate the system reliability. FMEA/FMECA may be applied in design or operational phases (ANSI/IEEE Std 352-1975, MIL-STD-1543 and MIL-STD-1629A). Typical headings in the F.Mld. A identify the system and component under analysis, failure modes, the ef fect i>f failure, an estimale of how critical apart is, the estimated probability of the failure, mitigaturs and IHissihiy die support systems. The style and contents of a FMEA are flexible and depend upon the. ilitcLiives of the analyst. 

FMECA - Failure Modes, Effects and Criticality Analysis. 

I Failure Modes Effects and Criticality Analysis Applied to System B of... 

The description of shock-compressed matter derived from physical and chemical observations, as presented in this book, is significantly different from that denved strictly from mechanical characteristics, which are the classical descriptions. This volume, with over 300 references and summaries of major review articles, provides a succinct introduction and critical analysis for scientists and engineers interested in the present state of shock-compression science. 

All of these factors determine the stress experienced by the workers and the extent to which operational errors will be recovered before disastrous consequences have ensued. In this context, hazard identification techniques, such as hazard and operability studies (HAZOP), failure modes and effects and criticality analysis (FMECA), fault trees, and others are useful in making the process environment more forgiving. 

FMECA Failure Modes and Effects of Criticality Analysis... 

Failure modes effects criticality analysis (FMECA)... 

Perhaps the key to detcrnuiiiiig die consequences of an accident is die study of accident mininiization/prcvendon. This topic receives extensive treatment in Section 17.2. The estimation (not calculadon) of consequences is treated in Section 17.3, which is followed by evacuation procedures (Section 17.4). The next section e.xaniiiies failure modes, effects and critical analysis (FMECA). The cluipter concludes with vulnerability analysis (Section 17.6) and event tree analysis (Section 17.7). 

List tlie key features (positive or negative) of Failure Modes, Effects, and Critical Analysis. 

S. H. Vosko, L. Wilk and M. Nusair, Accurate spin-dependent electron liquid correlation energies for local spin density calculations a critical analysis, Canadian J. Phys., 58,1200 (1980). 

From this critical analysis of the kinetics and mechanisms of linear polyesterifications by reaction of diols with diacids the following conclusions can be drawn ... 

Our discussion concentrates on experimental information providing some insight into the difficulties and limitations of these studies. In places, results from quantum chemical calculations will be invoked for comparison however, a critical analysis of the application of these methods to sulfones and sulfoxides is beyond the scope of this section. As in previous reviews in this series3,6,7, we shall be concerned primarily with the geometrical aspects of molecular structures. 

Tsaparlis, G. (1997). Atomic and molecular structure in chemical education - A critical analysis from various perspectives of science education. Journal of Chemical Education, 74, 922-925. 

In Table III are shown values of p, p, X, n, SD, / and Hammett p values obtained for additional para BA type reaction series which contain data for sufficient numbers ( ) and kinds of substituents to provide a reasonably critical analysis. We do not believe, however, that the analysis is as critical for sets which do not meet the minimal requirements for a basis set. The reaction series are segregated according to type of measurement equilibrium, rate, and fluorine nmr (F-nmr) shift. Any data set in Table III and in all tables hereafter (other than designated basis sets) which meets our minimal basis set criterion is indicated by an asterisk. 

The previous analysis by the dual substituent parameter equation of substituent effects in the naphthalene series provided support for the scale, especially for sets involving nonconjugating positions (2p). The available data yield six basis sets which presumably give a critical analysis and, in particular, provide distinctions between conjugative (three sets) and nonconjugative positions (three sets). The results (using the earlier symbolism (2p)) are given in Table X. 

The values of Table V obtained in the manner described above are found to fit uniquely a substantial number of data sets within the criteria /<. 10. Indeed, the variation of XP and pj values permitted by these correlations is highly remarkable ( p varies from —.96 to 12.0, pj varies from —11.10 to —.140 and from +.627 to +6.566). Table XIII lists values ofp, p, n, SD, and / obtained for sets of the type, each of which contains data for sufficient numbers and kinds of p-substituents to provide a reasonably critical analysis. 

Oehlmann, J., Kloas, W., and Kusk, O. et al. (2008). A critical analysis of the biological impacts of plasticizers on wildlife. Philosophical Transaction of the Royal Society (accepted). 

Idee JM, Pines E, Prigent P, Corot C. Allergy-Uke reactions to iodinated contrast agents. A critical analysis. Fundam Clin Pharmacol 2005 19 263-281. 

This review presents a critical analysis of recent updates of the research work that has been reported in last couple of years in the fields of microbial transformation or biotransformation using microbes to modify alkaloids. 

In order to identify and then establish the risk level of a chemical, one uses a certain number of risk parameters. The purpose of this chapter is to consider these parameters in detail. It is also to enable the reader to submit these parameters to critical analysis if values are available, or to estimate them if they are unknown. The user of this book should then be able to offer an evaluation of the risk level of inflammability of a particular chemical. This is necessary even if the chemical is not in the tables included later in this book. 

But it will also be seen that vapour pressure estimation methods provide critical analysis of all parameters involved in a fire hazard and thus allow refinement of the methods leading to a quantification of this risk. 

Maerker, C., Schleyer, P. v. R., Liedl, K. R., Ha, T. K., Quack, M., Suhm, M. A., 1997, A Critical Analysis of Electronic Density Functionals for Structural, Energetic, Dynamic, and Magnetic Properties of Hydrogen Fluoride Clusters , J. Comput. Chem., 18, 1695. 

Vosko, S. J., Wilk, L., Nusair, M., 1980, Accurate Spin-Dependent Electron Liquid Correlation Energies for Local Spin Density Calculations A Critical Analysis , Can. J. Phys., 58, 1200. 

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