D in international projects carried out in the Reduce Danube and Black Sea Basins, in order to present an overview around the Danube water excellent on the Chilia branch in the longitudinal level.Author Herbimycin A site Contributions: Conceptualization, L.T. as well as a.E.; information curation, L.T. and also a.E.; formal analysis, L.T. and D.S.-O.; funding acquisition, A.E.; investigation, L.T., A.E., A.B., C.D., D.S.-O., C.T., O.I., E.B., M.-I.T., M.T., I.C., L.P.G. and C.I.; methodology, L.T., A.E., A.B., C.D., D.S.-O., C.T., O.I., E.B., M.-I.T., M.T., I.C., L.P.G. and C.I.; project administration, L.T. plus a.E.; sources, L.T. and M.T.; application, L.T., A.E. and C.T.; supervision, L.T. and M.T.; validation, L.T., A.E., A.B., C.D., D.S.-O., O.I., E.B., M.-I.T., I.C., L.P.G. and C.I.; visualization, C.T.; writing riginal draft, L.T. plus a.E.; writing eview and editing, L.T. and also a.E. All authors have study and agreed to the published version on the manuscript. Funding: The APC is funded by “Dunarea de Jos” University of Galati, Romania. Institutional Review Board Statement: Not applicable. Informed Consent Statement: Not applicable.Appl. Sci. 2021, 11,14 ofData Availability Statement: The data that help the findings of this study are offered in the 1st (LT) and corresponding (AE) authors, upon affordable request. Acknowledgments: This investigation was funded by Romanian National Authority for Scientific Research and Innovation inside the framework of Danube Delta Nucleus Programme and Joint Operational Programme Black Sea Basin 2014020 by means of the project with code BSB27 (MONITOX). The authors acknowledge the infrastructure and assistance of Danube Delta National Institute for Study and Development at Tulcea, Romania and INPOLDE research center of Dunarea de Jos University of Galati, Romania. Conflicts of Interest: The authors declare no conflict of interest.
applied sciencesArticleA Voxel-Based Watermarking Scheme for Additive ManufacturingShyh-Kuang Ueng , Ya-Fang Hsieh and Yu-Chia KaoDepartment of Personal computer Science and Engineering, National Taiwan Ocean University, Keelung 202, Taiwan; [email protected] (Y.-F.H.); [email protected] (Y.-C.K.) Correspondence: [email protected] Application: Giving protection and authentication for digital models, G-code programs, and printed objects developed in additive manufacturing. Abstract: Digital and analog contents, generated in additive manufacturing (AM) processes, could be illegally modified, distributed, and reproduced. Within this short article, we propose a watermarking scheme to boost the safety of AM. Compared with standard watermarking solutions, our algorithm possesses the alpha-D-glucose MedChemExpress following positive aspects. Initial, it protects geometric models and printed components as well as G-code programs. Secondly, it embeds watermarks into both polygonal and volumetric models. Thirdly, our approach is capable of developing watermarks inside the interiors and around the surfaces of complex models. Fourth, the watermarks might appear in many types, including character strings, cavities, embossed bumps, and engraved textures. The proposed watermarking approach is composed of the following steps. Initially, the input geometric model is converted into a distance field. Then, the watermark is inserted into a area of interest by using self-organizing mapping. Finally, the watermarked model is converted into a G-code system by utilizing a specialized slicer. Quite a few robust methods are also created to authenticate digital models, G-code plan.
