Abstract When a free nucleus absorbs or emits gamma ray, it recoils to conserve energy, just like gun after shooting bullet. Nuclei bound crystal lattice energy when they absorb emit rays from nuclear transition as are fixed so their movement is restricted. This restriction recoilless resonance fluorescence—the Mössbauer effect. The transmitted through sample reveals its electronic and molecula...

3D printing, also known as additive manufacturing has become one of the most revolutionary and powerful tools serving a technology precise chemicals ranging from laboratory scale to large production. There is constant motivation towards designing new concepts with high efficiency. The introduction printing in chemical industry opened horizons research development printed materials equipment. On...

New methods for e-learning and research are growing up in the field of chemical engineering, as computer aided tools become more important. Concepts as distributed laboratories for education and research, associated to the e-learning and lifelong learning tasks, have been implemented in specific applications at the Faculty of Chemistry and Chemical Engineering of “Babes-Bolyai” University. Appl...