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In this paper, the heat transfer performance of the multi-chip (MC) LED module is investigated numerically by using a general analytical solution. The configuration of the module is optimized with genetic algorithm (GA) combined with a response surface methodology. The space between chips, the thickness of the metal core printed circuit board (MCPCB), and the thickness of the base plate are considered...
In the task of hyperspectral image classification, band selection is often adopted to select a subset of informative bands to reduce the computation and storage cost. We propose a supervised band selection method which allows calculation of a discriminative weight for each band. Specifically, we consider discriminative bands as those that contribute more positive scores to a one-class classifier than...
L1-norm maximization based Discriminant Locality Preserving Projection (DLPP-L1) is shown to be effective and robust to the outliers in given data, but DLPP-L1 is based on the vector space, so it has to convert those 2D matrices into high-dimensional 1D vectorized representations when handing images. But such transformation usually destroys the topology structures of images pixels, which can decrease...
This paper proposes a voltage-control strategy for the distribution system with high photovoltaic (PV) penetration to reduce the voltage rise and comply with the voltage regulation limits. The control strategy can lower feed-in active-power curtailment of the PV systems simultaneously to solve the over-voltage problem. The proposed voltage-control strategy is realized by managing the transformer on-load...
Due to the traffic congestion caused by increasing traffic flow at airport, a strategy to schedule arrival flights at airport with one runway is studied by utilizing collaborative decision making and law of economics. First, taking into account factors including airline's gross income, operation cost and delay cost, a scheduling optimization model to maximize total airline's profit is established,...
Often the processes for purchasing commodities and services within a business enterprise are centralized into a procurement organization. These purchases are often sourced from one or more suppliers, or vendors, based on contract terms and conditions (such as price, payment terms etc.), availability, and quality or legacy habit of purchasing service with known vendors. We have found that many organizations...
Quality assessment of Multiobjective Optimization Evolutionary Algorithms (MOEA) has been a major concern in scientific field during the last few years. The entropy metric is introduced and highlighted in computing the diversity of MOEA. Existing performance metrics are briefly reviewed. The advantages of entropy approach over other diversity metrics are classified here. Besides, the definition of...
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