Fuzzy logic control of chip form during turning

Ralston, Patricia A. S.; Stoll, Kenneth E.; Ward, Thomas L.

doi:10.1016/0360-8352(92)90001-z

Cited by 9 publications

(7 citation statements)

References 8 publications

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“…Such differentiation between clay minerals in their mixtures would not be possible with vibrational spectroscopy. Contrary to the jarosite bole identified in sample 1, a clay-rich bole was a very plain traditional painting material (Hradil et al , 2003). Actually the clay minerals, including smectite, are responsible for the high technological value of such bole grounds.…”

Section: Resultsmentioning

confidence: 90%

“…Bole ground is a common denotation of red or yellow ochres, natural pigments containing mostly clay minerals, quartz (SiO 2 ), calcite (CaCO 3 ), and/or Fe oxides. Knowledge of their mineralogical composition is important because of their origin, provenance, and contribution to the understanding of traditional artist techniques, but their elemental analysis (SEM/EDX) has not been very helpful (Hradil et al , 2003).…”

Section: Resultsmentioning

confidence: 99%

“…(b) area of layer 1 analyzed by powder X-ray microdiffraction in its outer surface of the ground layer [layer 1 in (a)]; the circle shows the area measured. goethite-jarosite bole. The natural occurrence of jarosite is much less common than that of goethite and hematite earthy pigments (Grygar et al , 2003; Hradil et al , 2003), and the actual historical jarosite sources are unknown at the present time.…”

Section: Resultsmentioning

confidence: 99%

“…XRD is undoubtedly a very reliable tool for analysis of the artist pigments (Pomies et al , 1998; Ortega et al , 2001; Rampazzi et al , 2002; Salvado et al , 2002), and also for identification of mineralogical components of archaeological samples like ceramics (Ramos et al , 2002; Eiland and Williams, 2001) and mortars (Benedetti et al , 2004). For example, XRD is indispensable in the identification of very rare pigments (Richter et al , 2001; Corbeil et al , 2002), minerals composed of widespread elements, such as bole grounds (earthy pigments of yellow or red color) (Grygar et al , 2003; Hradil et al , 2003), and pigments that are very variable in mineralogical composition and very similar in elemental composition, such as Cu pigments (Salvado et al , 2002). At present, the only alternative analytical micromethod to phase analysis is vibrational spectroscopy, either Raman (Edwards et al , 1997; Daniilia et al , 2002; Bruni et al , 2002) or IR spectroscopy (Rampazzi et al , 2002; Salvado et al , 2002).…”

Section: Introductionmentioning

confidence: 99%

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X-ray powder microdiffraction for routine analysis of paintings

et al. 2005

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Laboratory powder X-ray microdiffraction with a focusing monocapillary and linear multichannel detector was applied to phase identification in fragments of painting layers of art works, canvas and wall paintings, and polychromes on wood. This method is useful in materials research of painting layers with complex stratigraphy, and it is indispensable in distinguishing inorganic pigments of different natural provenance and revealing degradation products. The advantage of X-ray microdiffraction is its nondestructive nature and no need of sample pretreatment. Samples after microdiffraction can hence be used for other analyses or archived. Another advantage is the possibility to work with samples smaller than 1 mm, which is particularly important in the analysis of artworks where the sample amount or size is a serious limit of using the laboratory techniques of materials research. The X-ray equipment used is more economical and more easily accessible than other microdiffraction techniques and is, hence, suitable for routine analytical work.

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Section: Resultsmentioning

confidence: 90%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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X-ray powder microdiffraction for routine analysis of paintings

et al. 2005

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“…It has since been extended to a number of subtheories based on differing notions of fuzzy sets, and has been applied to varied systems. Fuzzy set approaches seemed appropriate when the modelling of human knowledge was necessary, because fuzzy logic utilizes linguistic rules based on the knowledge and experience of human operators rather than the mathematical equations used in conventional control methods (Zadeh, 1988;Ralston and Ward, 1990). Evans et al (1989) compiled fuzzy set applications in the field of industrial engineering.…”

Section: Fuzzy-logic-based Approach For Real-time Fmsmentioning

confidence: 99%

The state of the art in intelligent real-time FMS control: a comprehensive survey

Shukla

Chen

1996

J Intell Manuf

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Flexible manufacturing systems (FMS) have been developed with the hope that they would provide a means to tackle a threefold challenge -better quality, lower cost and shorter lead times -by integrating machine tools, robots, material handling and storage systems, and computers. Control of the integrated system presented a new set of problems as well as challenges, which have been receiving considerable attention from the academic community as well as from industrial system users. Intelligent control, which involves using computers to assist in decision making at various stages of the control process, has been advocated by many researchers as a possible avenue to reach a solution to these problems. This paper provides a review of the state of the art in intelligent control of FMS, in an attempt to supplement earlier general reviews via a more focused perspective. The principles of several techniques, namely simulation, knowledge based, example based, petri nets, and hybrid approaches are briefly introduced, and publications are reviewed, followed by discussions ontheir potential. Suggestions for further research and development are also enumerated.

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