Tuesday, 12 January 2021

Engineering Journal: November 2020

Engineering Journal: published its volume-6, Issue-11, November 2020 with AD Publications

Hydrogen Production System using a Plasma Reactor

Abstract The present article deals with a potential to interconnect the plasma technology of waste processing with the technology of hydrogen separation from syngas using metal hydride alloys. It also describes key components of the system used for syngas cleaning and their succession.

Keywords hydrogen, plasma reaktor, waste treatment, gasification.

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Vehicle Re-Identification Based on the Authenticity of Orthographic Projection

Abstract Vehicle re-identification is still a problem do not receive much attention in the multimedia and vision communities. Since most existing approaches mainly focus on the overall vehicle appearance for re-identification and do not consider the visual appearance changes of sides of vehicle, called local deformation. In this paper, we propose a vehicle re-identification method based on the authenticity of orthographic projection, in which three sides of vehicle are extracted, and the local deformation is explicitly minimized by scaling each pair of corresponding side to uniform size before computing similarity. To compute the similarity between two vehicle images, we 1) construct 3D bounding boxes around the vehicles, 2) extract sub-images of the three sides of each vehicle like a three-view drawing, 3) compute the similarity between each pair of corresponding side sub-images, and 4) use their weighted mean as the final measure of similarity. After computing the similarity between the query vehicle and all candidate vehicles, we rank these similarities and take the vehicle with the maximum similarity as the best match. To evaluate this approach, we use a dataset with 240 pairs of vehicle images extracted from surveillance videos shot at seven locations in different directions. The experimental results show that our proposed method can achieve 75.83% matching accuracy for the top-1 ranked vehicle and 91.25% accuracy for the top-5 vehicles.

Keywords 3D bounding boxes, local deformation, vehicle re-identification, weighted mean.

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Design and Strength Analysis of the Base for Robot Baxter

Abstract This paper discusses the issue of the subsystem of mobility and solves the design of the lower mobile base for a robot called Baxter. In this paper you can see all the models and parts that are used in construction of mobile base, from which the initial model of the base is created. After making a model of a base, we were putting a load (represents the weight of a robot) on it so we could determine what kind of relative deformations and stresses are created by using finite element method analysis FEM. Later we optimised the base (for example we were changing the length dimensions of some parts), so we could get better results from FEM analysis and also, we wanted the optimised base to acquire similar dimensions and weight as a commercial base. At the end we created technical sheets of all the parts of the base. These technical sheets were later sent to university SIGMA in Clermont-Ferrand (France), from which they constructed mobile base for robot Baxter. FEM analysis was done in program called NX Siemens and models of individual parts were modelled in CATIA V5.

Keywords mobile base, subsystem of mobility, service robot, Baxter, strength analysis, finite element method.

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