Université de Lyon 1, INSERM, CNRS, Lyon Neuroscience Research Center, Lyon, France Simultaneous MR-PET imaging opens new perspectives for understanding many aspects of brain function. However, accurate brain attenuation correction (AC) is required for absolute PET quantification. Radiodensity maps for AC are not readily available in PET-MR. Various strategies have been proposed to generate sub...

Today, spatial data are increasingly available on the web and users can update their datasets more easily. Different sets of updates result from diverse sources are furnished to the user, each containing updates acquired in different manners, with different quality and at different times. A special context where the data and updates could come from different sources is a military mission. Indee...

Despite the considerable progress made in a transport logistics research, an actual problem today is an optimization of time spends on search for optimal solution [1]. This article describes a method that can be used to simplify and solve the cargo routing problem with several vehicles. The method offers easier and faster solution compare to other known methods. The cargo routing problems are b...

This paper deals with the solution of a binary classification problem by acting on the combined evidence of several early vision modules. Each module provides an opinion on the identity of an individual image element based on a specific area of expertise, such as texture, motion, depth etc. The problems involved in reaching a consensus of opinion are discussed, and the effectiveness of using a ...

logistic network design is one of the most important strategic decisions in supply chain management that has recently attracted the attention of many researchers. transportation network design is then one of the most important fields of logistic network. this study is concerned with designing a multi-stage and multi-product logistic network. at first, a mixed integer nonlinear programming model...

this paper presents approximate analytical solutions for nonlinear oscillators using the multi-step homotopy analysis method (msham). the proposed scheme is only a simple modification of the homotopy analysis method, in which it is treated as an algorithm in a sequence of small intervals (i.e. time step) for finding accurate approximate solutions to the corresponding problems. several illustrat...