D in international projects carried out in the Decrease Danube and Black Sea Basins, so that you can supply an overview Cephalotin References around the Danube water high quality of the Chilia branch at the longitudinal level.Author Contributions: Conceptualization, L.T. as well as a.E.; information curation, L.T. along with a.E.; formal evaluation, L.T. and D.S.-O.; Fluazifop-P-butyl Epigenetics 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.; resources, L.T. and M.T.; computer software, 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. and a.E.; writing eview and editing, L.T. along with a.E. All authors have study and agreed towards the published version with 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 assistance the findings of this study are offered from the 1st (LT) and corresponding (AE) authors, upon affordable request. Acknowledgments: This investigation was funded by Romanian National Authority for Scientific Analysis and Innovation within the framework of Danube Delta Nucleus Programme and Joint Operational Programme Black Sea Basin 2014020 via the project with code BSB27 (MONITOX). The authors acknowledge the infrastructure and assistance of Danube Delta National Institute for Study and Improvement at Tulcea, Romania and INPOLDE investigation 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 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: Supplying protection and authentication for digital models, G-code applications, and printed objects produced in additive manufacturing. Abstract: Digital and analog contents, generated in additive manufacturing (AM) processes, may be illegally modified, distributed, and reproduced. In this write-up, we propose a watermarking scheme to improve the security of AM. Compared with traditional watermarking methods, our algorithm possesses the following positive aspects. 1st, it protects geometric models and printed parts also as G-code applications. 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 may possibly appear in various types, which includes character strings, cavities, embossed bumps, and engraved textures. The proposed watermarking process is composed on the following methods. At first, 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. Ultimately, the watermarked model is converted into a G-code program by utilizing a specialized slicer. Numerous robust procedures are also developed to authenticate digital models, G-code system.