A recent trend in micro-EDM is the addition of powders into dielectric. The presence helps to lower dielectric breakdown voltage and, therefore, discharge occurs early. As a result, energy better distributed, resulting greater number discharges, each with less energy. main advantage using this method improvement both process performance and surface finishing workpiece. In general, critical aspe...

The objective of the study was the estimation of the effect of surfactants on the toxicity of ZnO, TiO2 and Ni nanoparticles (ENPs) towards Daphnia magna. The effect of hexadecyltrimethylammonium bromide (CTAB), triton X-100 (TX100) and 4-dodecylbenzenesulfonic acid (SDBS) was tested. The Daphtoxkit F test (conforming to OECD Guideline 202 and ISO 6341) was applied for the toxicity testing. Bot...

The paper is divided in a basic introduction and a discussion of new and future methods of optimization and simulation. The introduction discusses actual architectures of complex information systems, which include optimization systems or modules. The opti-mization system is presented as an example for a practical solution of optimization tasks. The second part discusses mainly Web-based applica...

The effect of three-dimensional confinement on the size and morphology of a vesicular surfactant mesophase obtained by mixing micellar solutions of cetyltrimethylammonium bromide and dodecylbenzenesulfonic acid has been studied using small-angle neutron scattering (SANS). The confined spaces were generated by the random close packing of polystyrene beads of radius Rb=1.5, 0.25, and 0.1 microm, ...