This study proposed a model-based robust fault detection (RFD) method using soft computing techniques. Robust detection of the possible realistic incipient faults of an industrial gas turbine engine in steady-state conditions is mainly centered. For residual generation a bank of Multi-Layer perceptron (MLP) models, is used, Moreover, in fault detection phase, a passive approach based on Modelli...

In this paper, the gradual real numbers are considered and the notion of the gradual normed linear space is given. Also some topological properties of such spaces are studied, and it is shown that the gradual normed linear space is a locally convex space, in classical sense. So the results in locally convex spaces can be translated in gradual normed linear spaces. Finally, we give an examp...

We consider the problem of constructing efficient locally decodable codes in the presence of a computationally bounded adversary. Assuming the existence of one-way functions, we construct efficient locally decodable codes with positive information rate and low (almost optimal) query complexity which can correctly decode any given bit of the message from constant channel error rate ρ. This compa...

Suppose that T is a spanning tree of a graph G. T is called a locally connected spanning tree of G if for every vertex of T , the set of all its neighbors in T induces a connected subgraph of G. In this paper, given an intersection model of a circulararc graph, an O(n)-time algorithm is proposed that can determine whether the circular-arc graph contains a locally connected spanning tree or not,...

introduction rainfall is considered as one of the most important factures in water cycle. prediction of monthly rainfall is important for many purposes such as estimating torrent, drought, run-off, sediment, irrigation programming and also management of drainage basins. rainfall prediction in each area is mediated by punctual data measured as humidity, temperature, wind speed and etc. as iran i...

The main objectives of the study were to (1) determine response diameter growth silver fir, Scots pine, and black pine in Central European seminatural forests tree, stand, environmental factors (2) test for differences their rate on different soils. Based 26,291 permanent sampling plots (500 m² each), we developed a linear mixed-effects model increment each these tree species. models explained ...

For winning in global competition, companies need to recognition and monitoring of customer's behavior to forecast their behavior and desires earlier than competitors. This research tries to recognize the attributes which lead to customer churn. For this, behavior of 3150 subscribers of an Iranian mobile operator, has observed during one year and trends of them has analyzed by a customized LLNF...