Additive manufacturing (AM) revolutionary technologies open new opportunities and challenges. They allow low-cost of parts with complex geometries short time-to-market products that can be exclusively customized. manufactured often need post-printing surface modification. This study aims to review novel environmental-friendly finishing process 3D-printed AlSi10Mg by electroless deposition gold,...

We have studied by optical microscopy and SEM-EDX some metallic particles of gold silver adhering to a sample the Turin Shroud. A total number eighteen (and sub-particles) containing these two elements were characterized in details. Three them (e49, b22 h28-0) are parts scales, six (l38-1, 2, 3, 4, 7’ 12) micro-grains powder. The three a23-1, 2 3 sub-particles spot painting. e27 particle (of el...

High system capacities can be achieved by controlling the transmitter power in multiuser radio systems. Power control with no constraint on the maximum power level has been studied extensively in earlier work([1]-[18]). Transmitter power is at a premium in radio systems such as cellular systems and PCS. There is a limit on the maximum transmitter power especially at the terminals (eg. mobile un...

In the Santander Massif of Eastern Cordillera Colombia, intense Pliocene to Holocene sulfide-rich gold mineralization occurs in a six kilometers long section La Baja fault zone, where it crosses partially migmatized gneisses and intrusions Triassic-Cretaceous quartz monzonites granites. These intrusives are mineralogically texturally similar neosome migmatites that they intrude. The as medium l...

Tertiary low sulfidation (LS) epithermal deposits in the western USA often show evidence of the former presence of nanoparticle-sized precious-metal and silica phases in the highest grade (bonanza) ores. Here, nanoparticles are defined to have a size less than ~10 m. The ore-mineral textures that formed from aggregation of nanoparticles (or colloids) observed to date in these ores include elect...