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In SLM, a high energy density is applied by a laser to locally melt layers of metallic powder particles in order to create functional parts. This high energy intensity and additive process character create a specific/unique microstructure. The solidified melt pools in HSS M2 SLM parts are observed to consist of two distinct zones next to the heat affected zone. The first zone, at the bottom of the...
For the stacker-reclaimer job optimization problem of sinter material plant in iron and steel enterprises, this paper establishes a multi-objective optimization model for stacker-reclaimer job according to the production planning and locations of stacker-reclaimers and stockpiles, and then proposes an optimization method based on analytic hierachy process(AHP) and linear programming(LP), so as to...
Based on stability theory and nonlinear finite element (FE) method, ANSYS finite element models (FEM) are presented, which introduce shell181 and take geometric and material nonlinear into account. The seismic behavior of rectangular section steel members under the axial compression and the bending load is investigated. The effect of length-slender ratio, width-thickness ratio of flange and web, axial-compression...
Three-dimensional-position-sensitive CdZnTe detectors have excellent energy resolution along with imaging capability. In this work, a 2 cm × 2 cm × 1.5 cm CdZnTe detector was used to detect shielding in front of sources. By using the energy-imaging integrated spectral deconvolution (EIID) algorithm, the shielding has a unique signature in the reconstructed image.
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