The influence of TiO2 nano-particles (nano-TiO2) was studied relative to the mechanical and optical properties of CMYK printed paperboard after coating with a UV-curable varnish. Commercial duplex paperboard (glazed grayback paperboard, 230 g/m) was printed with a CMYK offset printing process. Board samples were coated with a nano-TiO2 modified UV-curable varnish at four treatment levels (0, 0....

A character recognition scheme based on structural analysis is presented to deal withunconstrained hand-written characters and degraded samples of multi-font machine-printed characters. It is based on building simplified easy-to-construct shape modelsrepresenting character classes. The scheme is based on employing a general variation anddegradation model to match character sampl...

Additive manufacturing is unquestionably gaining importance in industry. Due to the layer by deposit process, it usually leads an anisotropic material. A question of whether Linear Elastic Fracture Mechanics can be used assess their resistance fracture. In this paper, we investigate point on polycarbonate printed Fused Deposition Modelling focusing a criss-crossed pattern. Thanks tensile and fr...

Today, 3D manufacturing technologies are shown as candidates to replace traditional technologies. In this direction, many studies carried out reduce the disadvantages of The first few these are; high production cost, slow speed, and lower strength values produced product compared methods. Increasing or decreasing printing which is one 3d parameters, appears a parameter that will directly affect...

In electron and proton radiotherapy, applications of patient-specific electron bolus or proton compensators during radiation treatments are often necessary to accommodate patient body surface irregularities, tissue inhomogeneity, and variations in PTV depths to achieve desired dose distributions. Emerging 3D printing technologies provide alternative fabrication methods for these bolus and compe...

The main idea of this paper is improving fatigue response a low-alloyed carbon-manganese steel material manufactured by Direct Energy Deposition-Arc technique using post-heat treatments. Four series specimens are machined from 3D printed wall. samples austenitized following direct quenching and tempering processes at two different temperatures. All subjected to rotating bending loading conditio...

Multi-material 3D printing offers new possibilities regarding product development, allowing design freedom and multiple materials choices in terms of colour polymer type. Material extrusion technologies are among the most popular options for multi-material due to their low equipment cost various thermoplastic materials. However, polymers’ compatibility bond interface must be considered componen...

econstructing the spectral data of color samples using conventional color devices such as a digital camera or scanner is always of interest. Nowadays, multispectral imaging has introduced a feasible method to estimate the spectral reflectance of the images utilizing more than three-channel imaging. The goal of this study is to spectrally characterize a color scanner using a set of conventional ...