15 research outputs found

    RELIABILITY OF INTEGRATED MATERIAL AND DATA PROCESSING SYSTEMS (IMDP)

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    The reliability estimation of Integrated and Data Processing Systems because of their complexity and costs requires special methods. In this paper the possibilities to increase reliability, optimum maintenance strategies, real-time monitoring problems are discussed. The general principle of a reliability prediction procedure using mathematical pattern recognition methods is given

    PATTERN RECOGNITION IN MAINTAINING RELIABILITY

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    In the paper a feedback control scheme for running and maintenance of industrial equipments is developed, where only input and output signals of the control loop are observable, the actual state of the system will be estimated from the output signals using pattern recognition. Technical and statistical expertise in the control loop are separated, therefore appropriate statistical tools and problems (classification, feature extraction, life statistics) can be individually accessed. The phenomenon of aging is modelled by random transitions among parameter classes with different failure rates. Optimization is reduced to a Markovian decision process. Concrete technical examples illustrate the relevance of the model

    Chemical composition and storability of Jerusalem artichoke tubers

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    Five different Jerusalem artichoke cultivars were investigated to compare their nutritional value. Investigations were carried out on samples harvested in December 2004 and stored until the end of March 2005 under natural climate in prism, in cold store and also after over-wintering in the soil. Investigations were repeated in 2005 and 2006. According to the results of storage outdoors in prism and in cold store, the total-and soluble solid content, the total carbohydrate and inulin content (w/w) did not change significantly as a function of storage time. Changes in sucrose-and reducing sugar content and that of glucose/fructose ratio were also insignificant. There was no significant difference in the ratio of carbohydrates of the tubers stored under those two above-mentioned conditions, however, there was a significant difference in the carbohydrate composition of the tubers harvested in winter or in spring.Compared to the majority of vegetables, the main nutrient of Jerusalem artichoke tubers is inulin, instead of starch. Total carbohydrate content of the tubers is divided into 80–90% inulin, 7–14% sucrose and 3–6% reducing sugars, on average. Because of its high average yield and outstanding inulin content, this is a plant of great interest as raw material for inulin and fructose processing, as well.The cultivar “Ceglédi” is, first of all, suggested for industrial processing. The present research data verified its outstanding inulin content and a high fructose/glucose ratio, too
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