Computer-aided ordering systems

On a more concrete level, development engineers can employ computer-aided simulation systems in order to model, analyze, and optimize the behavior of a mechatronic system. Especially the dynamic interactions of the system components are in the focus of the simulation... 

In order to develop intelligent, computer-aided systems with systematic and sound methodologies for the automatic creation of mental models of process operations, we need to resolve the following two and interrelated issues ... 

Section I of this book includes chapters on the principles and practice of PLC. After this introductory Chapter 1, Chapter 2 provides information on efforts undertaken to date in order to establish the theoretical foundations of PLC. With growing availability and popularity of modem computer-aided densitometers, separation results can be obtained in digital form as a series of concentration profiles that can be relatively easily assessed and processed. From these, relevant conclusions can be drawn in exactly the same manner as in automated column chromatographic techniques. Efforts undertaken to build a theoretical foundation of PLC largely consist of adaptation of known strategies (with their validity confirmed in preparative column liquid chromatography) to the working conditions of PLC systems. 

Dubois et al. developed the Description, Acquisition, Retrieval, Computer-aided design-Elucidation by Progressive Intersection of Ordered Structures (DARC-EPIOS) system for structural elucidation.Their approach was based on C spectra. These were predicted using an additive method, but based on their DARC descriptor of environment, as opposed to the more common HOSE code. The EPIOS system was designed to take account of the diagnostic (or not) nature of the C spectrum with respect to environment, i.e., depending on the specific sub-structures. 

The method calls for a combination of the DARC system (Description, Acquisition, Retrieval and Computer-aided design) and the PELCO procedure (Perturbation of an Environment Limited Concentric and Ordered). 

Large polarizations are seen to occur in multiphase polymer systems, principally due to the different conductivities in the dissimilar microdomains. Due to the low overall conductivities of these polymers, the polarizations occur at low, often subaudio, frequencies. In order to study these processes two computer-aided dielectric spectrometers have been developed. They differ in the type of excitation used A.C. versus step. Each... 

The method is based on a combination of the DARC system (Description, Acquisition, Retrieval and Computer-aided design) and the PELCO (Perturbation of an Environment Limited Concentric and Ordered) procedure. Moreover, it accounts for the simultaneous representation of all the data set compounds and the population of the compounds structurally contained in them the data set compounds, which are those compounds for which a molecular property has been experimentally evaluated, generate an ordered multidimensional space that constitutes a —> hyperstructure. 

Systems where computer-aided interpretation of spectral data is used in order to identify the structure of organic compounds will find their main application in fields where samples have to be routinely analyzed without knowledge of their origin, e. g. in the fields of forensic chemistry, analysis of metabolites, and environmental pollution. 

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