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作者:Erinc Karatoprak , Serhat Seker
来源:[J].Mathematical Problems in Engineering(IF 1.383), 2019, Vol.2019
摘要:This paper proposes an improved Empirical Mode Decomposition (EMD) method by using variable window size median filters during the Intrinsic Mode Functions (IMFs) generation. Compared to the traditional EMD, the improved EMD, namely, Median EMD (MEMD), helps to reduce mode-mixing ...
作者:Zhida Zhao , Nanyang Yu , Tao Yu ...
来源:[J].Mathematical Problems in Engineering(IF 1.383), 2017, Vol.2017
摘要:Artificial neural network has been widely used in air conditioning systems as an effective method for predicting parameters, and the accuracy of ANN model relies on training data and network structure. In order to increase the quality of chilled water loops model, this paper deve...
作者:Cuilian You , Lijuan Yan
来源:[J].Mathematical Problems in Engineering(IF 1.383), 2017, Vol.2017
摘要:Uncertainty theory is a branch of axiomatic mathematics for modeling belief degrees. Since convergence for uncertain sequences plays a very important role in uncertainty theory and applications, we investigated some properties of convergence in measure in this paper. In addition,...
作者:T. Romanova , A. Pankratov , I. Litvinchev ...
来源:[J].Mathematical Problems in Engineering(IF 1.383), 2019, Vol.2019
摘要:A packing (layout) problem for a number of clusters (groups) composed of convex objects (e.g., circles, ellipses, or convex polygons) is considered. The clusters have to be packed into a given rectangular container subject to nonoverlapping between objects within a cluster. Each ...
作者:Myeong-Hwan Ahn , Duck-Joo Lee
来源:[J].Mathematical Problems in Engineering(IF 1.383), 2019, Vol.2019
摘要:The fifth-order monotonicity-preserving (MP5) scheme is an accurate and low dissipative numerical method. As a finite-volume method, MP5 adopts the Roe-flux scheme for solving the numerical flux in the compressible Euler equation. However, due to the deficiency of the MP limiter ...
作者:Hongmei Zhang , Le Yang , Minglong Li
来源:[J].Mathematical Problems in Engineering(IF 1.383), 2019, Vol.2019
摘要:The iterative closest contour point (ICCP) matching algorithm has become more and more widely used in the underwater geomagnetic aided inertial navigation system (INS). In practical application, the traditional ICCP algorithm is sensitive to the initial positioning error of the I...
作者:Jun Guo , Mei-ting Wang , You-wei Kang ...
来源:[J].Mathematical Problems in Engineering(IF 1.383), 2019, Vol.2019
摘要:Prediction of cabin noise for new types of ships and offshore platforms, based on measurement or simulation databases, is a common problem that needs a solution at the beginning of the design process. In this paper, we explore the use of a radial basis function (RBF) neural netwo...
作者:Gang Jin , Houjun Qi , Zhanjie Li ...
来源:[J].Mathematical Problems in Engineering(IF 1.383), 2017, Vol.2017
摘要:Delay differential equations (DDEs) are widely utilized as the mathematical models in engineering fields. In this paper, a method is proposed to analyze the stability characteristics of periodic DDEs with multiple time-periodic delays. Stability charts are produced for two typica...

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