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Methodology construction

On layer. 3, we find internal tool models - either as abstract rewriting rule specifications being executable by an interpreter, or as equivalent source code. Furthermore, we find the models belonging to the methodological construction of integrators (link types, link templates, TOG rules), which were discussed above. The document contents models at the moment are also found on this level, they should be a part of the application domain model. [Pg.619]

Our experiences with the software developed within the ANDES project have shown that CBR is a helpful methodology for use in the interpretation of NDT data from field inspections. Because CBR systems can adapt to new situations they can cope with inspection of varying constructions in varying conditions. However, because CBR systems learn from classifications made by the operator this means that they will not be very useful for completely automatic interpretation. Fortunately, most of the NDT inspection requires the presence of an operator because of the required high reliability. [Pg.103]

Substituted indoles can be obtained by the same general method starting with 3-acylpyrroles[2]. The precise methodology for construction of the substituent can be adapted as necessary for more complex structures. For example, enantioselective syntheses of both cis and traus-trikentin A and herbindoles A, B and C have been accomplished by using the annelation methodology[3]. [Pg.80]

The Fundamentals book describes the basic theories and science behind the technical solutions for industrial air technology. Equipment-specific theories will be completed in the Systems and Equipment book. The Applications book will describe technical solutions for specific industrial sectors and technology areas, including design and construction methodology. [Pg.5]

Environmental issues are being addressed more and more heavily in today s and future society. Thus, it is natural that in industrial processes and in their design, environmental effects are also considered over the whole life cycle. The life cycle of the production process can be divided into four parts design, construction, operation, and end of the process. Each part consists of different tasks. Design methodology is a part of the whole process from starting point to grave. The life... [Pg.15]

The design methodology is a description of a technical design process that covers the whole lifetime of the production process. Most decisions concerning industrial ventilation are made at the design stage, and are reflected in construction, operation, maintenance, service, etc. [Pg.16]

These are the main steps of design methodology. In some cases all the steps are not needed, but in most cases it is important to take all of them into consideration. In addition to the construction and the use of the system,... [Pg.360]

Subject scales are useful in the measurement of subjective responses of persons exposed to thermal environments. They are particularly useful in moderate environments and can be used independently or to complement the use of the objective methods (e.g., thermal indices) that were described previously. ISO EN 10551 presents the principles and methodology behind the construction and use of subjective scales and provides examples of scales that can be used to assess thermal environments. [Pg.392]

The failure rates and times-to-restore developed used a variety of data sources and data construction methodologies and are presented in Section 2. The principal methodology used is a kind of failure mode analysis for each component several principle modes of failure are analyed by characteristics including frequency of occurence, repair time, start-up time, and shut-down time. From these an average failure rate is developed and expressed as failures per million hours and mean time between failure(MTBF). [Pg.108]

This methodology has been applied to the construction of non-natural compounds... [Pg.335]

The discovery of palladium trimethylenemethane (TMM) cycloadditions by Trost and Chan over two decades ago constitutes one of the significant advancements in ring-construction methodology [1]. In their seminal work it was shown that in the presence of a palladium(O) catalyst, 2-[(trimethylsilyl)methyl]-2-propen-l-yl acetate (1) generates a TMM-Pd intermediate (2) that serves as the all-carbon 1,3-di-pole. It was further demonstrated that (2) could be efficiently trapped by an electron-deficient olefin to give a methylenecyclopentane via a [3-1-2] cycloaddition (Eq. 1). [Pg.56]

Intramolecular [3-1-2] cycloadditions, i.e., having the TMM moiety and the acceptor linked by a tether, have great synthetic utility in polycarbocycle construction. The construction of 5.5, 6.5, and 7.5 ring systems has been demonstrated with this methodology [21-25]. A number of efficient routes to acyclic precursors were developed (Scheme 2.11). The organometallic reagent (31), generated from 2-bro-mo-3-(trimethylsilyl)propene (32) [26], is a key component in the construction of... [Pg.64]

Having developed effective synthetic methodology for the construction of seven-membered cyclic ethers, we were confident that the problem of the frans-fused bis(oxepane) system could now be addressed on a solid foundation. It was our hope that the breve-toxin-type bis(oxepane) system could be assembled by a stepwise strategy utilizing both photochemical dithioester and reductive hydroxy ketone cyclization methods. [Pg.744]

I11 Nicolaou s total synthesis of brevetoxin B, for example, out of the eleven transfused six- to eight-membered cyclic ethers, THP rings B, F, G, and I are constructed by application of this methodology through cydization of the appropriate... [Pg.275]

Two appendices are included at the end of this chapter. The first is intended to serve as a reminder, for those of you who might need it, of the nomendature and representation of stereoisomers. The second appendix contains descriptions of various chemo-enzymatic methods of amino acid production. This appendix has been constructed largely from the recent primary literature and includes many new advances in the field. It is not necessary for you to consult the appendix to satisfy the learning objectives of the chapter, rather the information is provided to illustrate the extensive range of methodology assodated with chemo-enzymatic approaches to amino add production. It is therefore available for those of you who may wish to extend your knowledge in this area. Where available, data derived from die literature are used to illustrate methods and to discuss economic aspects of large-scale production. [Pg.233]

This methodology has been used in the synthesis of aspidosperma alkaloids220,221, the construction of an ABC ring precursor for steroids 222 and the preparation of an optically active phenanthronc in 93% ee 223. / -Substituted Michael acceptors such as methyl ( )-2-butenoate are generally unreactive with A-cycloalkylidene-l-phenylethanamines, however ( )-2-butenoyl cyanide is a useful alternative. This is shown in the synthesis of enantiomerically pure cis-dimethyl substituted bicyclic lactams224. [Pg.982]


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See also in sourсe #XX -- [ Pg.198 , Pg.203 , Pg.253 ]




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Synthetic Methodologies for the Construction of Cyclic 10-Membered Enediynes

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