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Descriptive analysis overview

In this chapter we will focus on the contents and the design process of systems aimed at the reporting, description, analysis and interpretation of near miss situations. Although certain aspects of the following framework for designing such a "Near Miss Management System" (NMMS for short) will be aimed at issues like implementation, maintenance and acceptability, the main overview of such organisational aspects will be presented in Chapter 6, Chapters 4 and 6 may therefore be considered as "twin chapters". [Pg.31]

A discussion of the motivation behind doing sputtered neutral analysis versus SIMS, plus a description of the first prototype SALI instrument. A well written introduction for someone without previous surface analysis experience it also includes an historical overview of the various post-ionization techniques. [Pg.569]

The handbook additionally provides an extensive overview and comparison of commercially available computer systems and software for chemical emergency planning. This section provides technical guidance for hazard analysis and identification implementing regulatory requirements and descriptions of computer applications and systems applicable under SARA Title III. [Pg.320]

The intention of this chapter has been to provide an overview of analytical methods for predicting and reducing human error in CPI tasks. The data collection methods and ergonomics checklists are useful in generating operational data about the characteristics of the task, the skills and experience required, and the interaction between the worker and the task. Task analysis methods organize these data into a coherent description or representation of the objectives and work methods required to carry out the task. This task description is subsequently utilized in human error analysis methods to examine the possible errors that can occur during a task. [Pg.200]

Based on the collected information, a decision/action (DA) chart was developed to provide an overview of the main decisions involved in the blowdown operation and the main influential factors such as time stress, conflicting responsibilities, risk of gas ignition etc. Task Analysis and Error Analysis of the blowdown operation were subsequently carried out to obtain a description of the sequence of tasks steps and the likely human error modes which could occur. [Pg.337]

In this chapter, we first present a brief overview of the experimental techniques that we and others have used to study torsional motion in S, and D0 (Section II). These are resonant two-photon ionization (R2PI) for S,-S0 spectroscopy and pulsed-field ionization (commonly known as ZEKE-PFI) for D0-S, spectroscopy. In Section HI, we summarize what is known about sixfold methyl rotor barriers in S0, S, and D0, including a brief description of how the absolute conformational preference can be inferred from spectral intensities. Section IV describes the threefold example of o-cholorotoluene in some detail and summarizes what is known about threefold barriers more generally. The sequence of molecules o-fluorotoluene, o-chlorotoluene, and 2-fluoro-6-chlorotoluene shows the effects of ort/io-fluoro and ortho-chloro substituents on the rotor potential. These are approximately additive in S0, S, and D0. Finally, in Section V, we present our ideas about the underlying causes of these diverse barrier heights and conformational preferences, based on analysis of the optimized geometries and electronic wavefunctions from ab initio calculations. [Pg.159]

Inductively coupled plasma mass spectrometry is now such an important technique in archaeology, as elsewhere, that we devote a whole chapter to it. There are now a number of different ICP MS modes of operation (solution analysis, laser ablation, multicollector, high resolution) this chapter provides a general overview. Further description of the instrumentation for ICP MS may be found in Harris (1997) and Montaser (1998). Some general applications of solution ICP MS are discussed by Date and Gray (1989), Platzner (1997), and Kennett et al. (2001). [Pg.195]

In subsequent chapters, we provide an overview of SPMD fundamentals and applications (Chapter 2) the theory and modeling which includes the extrapolation of SPMD concentrations to ambient environmental concentrations (Chapter 3) study considerations such as the necessary precautions and procedures during SPMD transport, deployment, and retrieval (Chapter 4) the analytical chemistry and associated quality control for the analysis of SPMD dialysates or extracts (Chapter 5) a survey and brief description of bioassays-biomarkers used to screen the toxicity of SPMD environmental extracts (Chapter 6) discussions on how HOC concentrations in SPMDs may or may not relate to similarly exposed biomonitoring organisms (Chapter 7) and selected examples of environmental studies using SPMDs (Chapter 8). In addition, two appendices are included which provide... [Pg.23]

An overview is presented of TrexeTs MuCell microcellular foam extrasion technology and a description is given of its application to the manufacture of thermoformable PP sheet. The results of pilot scale thermoforming trials carried ont to optimise forming conditions and obtain data abont potential cycle time effects, measurements of the densities, flexnral modnlns and wall thicknesses of the sheets and containers made from the sheets and cell stmcture analysis are presented and discussed. [Pg.41]

This limited overview on the analysis of four classes of the following secondary potato metabolites is, except for anthocyanins, largely limited to our own studies of glycoalkaloids, calystegine alkaloids, and phenolic compounds. Because interest in these potato constituents arises from potential health benefits and occasional toxicity, we also include in this overview a brief discussion of these aspects that relate to composition and a description of experimental methods. The interested reader should consult the cited references for an entry into the extensive worldwide literature on the diverse analytical and biological aspects for these metabolites. [Pg.127]

For the description of a solution of alanine in water two models were compared and combined with one another (79), namely the continuum model approach and the cluster ansatz approach (148,149). In the cluster approach snapshots along a trajectory are harvested and subsequent quantum chemical analysis is carried out. In order to learn more about the structure and the effects of the solvent shell, the molecular dipole moments were computed. To harvest a trajectory and for comparison AIMD (here CPMD) simulations were carried out (79). The calculations contained one alanine molecule dissolved in 60 water molecules. The average dipole moments for alanine and water were derived by means of maximally localized Wannier functions (MLWF) (67-72). For the water molecules different solvent shells were selected according to the three radial pair distributions between water and the functional groups. An overview about the findings is given in Tables II and III. [Pg.127]

The methods of robust statistics have recently been used for the quantitative description of series of measurements that comprise few data together with some outliers [DAVIES, 1988 RUTAN and CARR, 1988]. Advantages over classical outlier tests, such as those according to DIXON [SACHS, 1992] or GRUBBS [SCHEFFLER, 1986], occur pri-marly when outliers towards both the maximum and the minimum are found simultaneously. Such cases almost always occur in environmental analysis without being outliers in the classical sense which should be eliminated from the set of data. The foundations of robust statistics, particularly those of median statistics, are described in detail by TUKEY [1972], HUBER [1981], and HAMPEL et al. [1986] and in an overview also by DANZER [1989] only a brief presentation of the various computation steps shall be given here. [Pg.342]

Principal components analysis. There are innumerable excellent descriptions of the mathematical basis of PCA26-30 and this article will provide only a general overview. It is important, first, not to be confused between algorithms which are a means to an end, and the end in itself. There are several PCA algorithms of which NIPALS (described in Appendix A2.1) and SVD are two of the most common. If correctly applied, they will both lead to the same answer (within computer precision), the best approach depending on factors such as computing power and the number of components to be calculated. [Pg.9]

The most common, but by no means the only or even the most promising, immunochemical assay for small molecules is radioimmunoassay (R1A). As an overview, an immunoassay involves chemically attaching the small molecule of interest (or a derivative of it) to a carrier protein and raising specific antibody titers to it in the serum of an animal. Very dilute antibody solutions are then used to bind the small molecule which has been radiolabeled. The competition of varying known concentrations of unlabeled material is measured and the resulting standard curve used to determine unknown concentrations (Table 1). The steps leading to the development of an R1A are outlined below followed by a description of other immunochemical procedures and an analysis of the attributes and limitations of immunoassay. [Pg.322]

Only an intuitive and general description of XAFS is given here. It is not the intention to provide a full physical background of XAFS, nor to give a detailed description of the data analysis. For a detailed description of XAFS, the overview given by Koningsberger et a/.10 is recommended. [Pg.3]

This chapter presents an overview of the methods of extraction, together with descriptions and designations, of olive oils (European Community Council regulations EC 136/66 and EC 1638/98), and explains and comments on the purpose and scope of the relevant official methods of olive oil analysis according to the European Community (EC) regulation EC 2568/91 and subsequent additions and amendments (EC Council, 1991).a... [Pg.25]

In the following, the history of the precautionary principle within the EU and its member states will be briefly described, followed by a concise overview of EU chemicals policy and a more detailed description and analysis of the REACH regulation and its relation to the precautionary principle. [Pg.242]

The purpose of this paper is the presentation of a brief overview of recent literature in which new models of electronic states in polymers and molecular solids have been proposed (, 2, 5-16). Since localized (e.g., molecular-ion) states seem prevalent in these materials, I indicate in Sec. II the physical phenomena which lead to localization. Sec. Ill is devoted to the description of a model which permits the quantitative analysis of the localized-extended character of electronic states and to the indication of the results of spectroscopic determinations of the parameters in this model for various classes of polymeric and molecular materials. I conclude with the mention in Sec. IV of an important practical application of these concepts and models The contact charge exchange properties of insulating polymers ( 7, 17, 18, 19). [Pg.65]

The first part of this section (Section 20.2.1) will provide the reader with historical overview of NMR and with a brief description of the most typical experiments used in NMR for the structural elucidation of organic compounds. The second part of this section (Section 20.2.2) will focus mainly on the improvements carried out in the NMR as a hyphenated analytical technique for the elucidation of organic compounds and an understanding of the need to develop LC-NMR for the analysis of complex mixtures. [Pg.902]

Coenzyme A (CoA) is a cofactor that has been estimated to be used by about 4% of all enzymes, although more recent analysis of the BRENDA database (http //www.brenda.uni-koeln.de/) suggests the number may be closer to 9% (1). The biochemical pathways and processes involving CoA thioesters are diverse and widespread, whereas the kinds of reactions involved primarily follow the inherent reactivity of the thioester functionality. This article provides a brief overview of CoA biosynthesis and a summary of the common types of reactions of CoA thioesters. Also presented is a brief introduction to structural studies and a more extensive description of some types of analogs of natural CoA thioesters that have been employed as mechanistic probes for CoA using enzymes. The application of CoA derivatives and CoA biosynthetic enzymes for the tagging of carrier proteins and carrier protein fusions is also described. [Pg.236]


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