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Fault detection and diagnosis are important issues in process engineering. Hence, a considerable interest exists in this field now from industrial practitioners as well as academic researchers, as opposed to 30 years ago. The literature on process fault diagnosis, ranging from analytical methods to artificial intelligence and statistical approaches, is largely widespread. In this paper, the modeling of the real process is known, and the state-space representation is used. The properties of the Finite Memory Observer (FMO) are studied from a global point of view for the class of linear time-varying (LTV) systems with stochastic noises. The FMO performances are framed by the study of their properties, and that of their influences on diagnosis results. Fundamentally, the generation of residuals is an essential procedure in diagnosis. So, the determination of the optimal window length of the observer is resolved, and the generation of residuals for diagnosis completed. In the first part, the design of the observer and the residual generation are shown. The second part is devoted to the study of the sensitivity and robustness of the observer and of residuals generated from the observer. 相似文献
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CHRISTOPHER MARTIN 《Journal of Philosophy of Education》2016,50(3):351-370
The orthodox view on higher education financing is that students should bear some of the costs of attending and, where necessary, meet that cost through debt financing. New economic realties, including protracted economic slowdown and increasing austerity of the state with respect to the public funding of goods and services has meant that the same generation who have to borrow the most in order to attend face significantly fewer employment prospects upon graduation. In this context, is the current approach of shifting the costs of post‐secondary education from the general public to individual students justified? Most debate on the issue has focused on the demands of distributive justice within the modern higher education system and on the whole accepts the idea that students ought to pay. I argue that distributive arguments alone are insufficient because they tacitly endorse the provision of higher education as being much like a consumer's choice. As an alternative, I explore the place and importance of higher education in supporting personal autonomy as a central liberal democratic value. I then argue that debt financing of higher education places unreasonable constraints on student's choices with respect to the kind of democratic citizens that they would otherwise aspire to be. This constraint has negative implications for the wellbeing of individual students and the larger society. 相似文献
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MARTIN HOLLIS 《Journal of Philosophy of Education》1989,23(2):185-193
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MARTIN WENHAM 《Journal of Philosophy of Education》1991,25(2):235-246
ABSTRACT The teaching-learning process is of central importance in education. By developing a concept of effective teaching and a corresponding model of the teaching-learning process, it is argued that unless the needs of pupils are to be disregarded, teachers must become co-learners and responsibility for quality of education must be shared. Education is seen as an interactive process in which teachers and pupils participate co-operatively. It is shown that this concept, already implicit in much educational thought and practice, can contribute to more flexible and rational policy-making. 相似文献
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