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Background The altered concentrations of amino acids were found in the bone marrow or blood of leukemia patients. Metabolomics technology combining mathematical model of biomarkers could be used for assisting the diagnosis of pediatric acute leukemia (AL). Methods The concentrations of 17 amino acids was measured by targeted liquid chromatograph–tandem mass spectrometry in periphery blood collected...
Solutions to linear equations and nonlinear equation are not only the main teaching contents of the course Computer Method, but also widely applied in engineering. It's difficult for non-computer major students to program and understand abstract theoretical explanations of mathematics. During the teaching process, the author finds out that it's vivid, intuitive and understandable to use Excel to solve...
This study develops a model for simulation of the behaviors of learners under the influence of motivation, engagement and intervention through application of cellular automata. It investigates the changing patterns of learners' behaviors when the three factors are assigned with different values individually. The results obtained show good agreement with the phenomenon generally being observed in practice.
The Particle Swarm Optimization (PSO) plunges into the local minimum easily. In order to overcome this shortcoming, we propose an improved PSO algorithm with the features of linearly decreasing of inertia weight and the re-initialization of the particle when it gets stagnated. The improved PSO is a local PSO and its topology is wheels. From the experimental results of three non-linear testing functions...
The shortcomings of some existing Particle Swarm Optimization (PSO) algorithms are analyzed and an improved discrete PSO algorithm with wheels topology which updates the particles' positions by using swap operator, swap sequence and partially matched crossover based on the local PSO is proposed in the present study. A mutation process in which all the particles are reinitialized when the swarm is...
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