1,194 research outputs found
Cold Spray Coatings for Surface Enhancement of Inconel 718
No full textCold spray is an emerging additive manufacturing technology that is promising to be used for surface repair and enhancement. In this study, Inconel 713 coating was successfully deposited on Inconel 718 substrate using a high-pressure cold spray process. The microstructure and hardness of the coating were studied. The cold sprayed Inconel 713 coating had a very low porosity level due to the severe plastic deformation of the splats. Hardness of the coating is much higher than that of Inconel 718 substrate. The regions closer to the substrate-coating interface in the coating showed higher hardness value compared to those located further away from the interface. This phenomenon can be attributed to the peening effect during high-velocity impact of Inconel 713 particles with the Inconel 718 substrate. This study demonstrates that cold sprayed coatings have the potential to increase surface hardness and further improve wear resistance of the Inconel 718 substrate
Contagion Source Detection in Epidemic and Infodemic Outbreaks: Mathematical Analysis and Network Algorithms
Get PDFThis monograph provides an overview of the mathematical theories and
computational algorithm design for contagion source detection in large
networks. By leveraging network centrality as a tool for statistical inference,
we can accurately identify the source of contagions, trace their spread, and
predict future trajectories. This approach provides fundamental insights into
surveillance capability and asymptotic behavior of contagion spreading in
networks. Mathematical theory and computational algorithms are vital to
understanding contagion dynamics, improving surveillance capabilities, and
developing effective strategies to prevent the spread of infectious diseases
and misinformation.Comment: Suggested Citation: Chee Wei Tan and Pei-Duo Yu (2023), "Contagion
Source Detection in Epidemic and Infodemic Outbreaks: Mathematical Analysis
and Network Algorithms", Foundations and Trends in Networking: Vol. 13: No.
2-3, pp 107-251. http://dx.doi.org/10.1561/130000006
Supplementary_Material_by_Song,_et_al – Supplemental material for Novel 2-Benzoyl-6-(2,3-Dimethoxybenzylidene)-Cyclohexenol Confers Selectivity toward Human MLH1 Defective Cancer Cells through Synthetic Lethality
No full textSupplemental material, Supplementary_Material_by_Song,_et_al for Novel 2-Benzoyl-6-(2,3-Dimethoxybenzylidene)-Cyclohexenol Confers Selectivity toward Human MLH1 Defective Cancer Cells through Synthetic Lethality by Dedrick Soon Seng Song, Sze Wei Leong, Kwok Wen Ng, Faridah Abas, Khozirah Shaari, Chee Onn Leong, Felicia Fei-Lei Chung, Chun Wai Mai, Ling Wei Hii, Pei Jean Tan and Vyomesh Patel in SLAS Discovery</p
Inconel 713C Coating by Cold Spray for Surface Enhancement of Inconel 718
No full textInconel 713C is a nickel-based superalloy usually considered as a material of poor weldability due to its susceptibility to hot cracking in the heat-affected zones. Cold spray, a solid-state deposition technology that does not involve melting, can be proposed as a methodology to deposit Inconel 713C for surface enhancement of other target components. In this study, Inconel 713C coating was deposited on Inconel 718 substrate with a high-pressure cold spray system. The coating was characterized in terms of microstructure, hardness, and wear properties. The cold-sprayed Inconel 713C coating has a low porosity level and refined grain structures. Microhardness of the Inconel 713C coating was much higher than the Inconel 718 substrate. The sliding wear tests showed that the wear resistance of the cold-sprayed Inconel 713C coating is three times higher than the Inconel 718 substrate, making the coating a suitable protective layer. The main wear mechanisms of the coating include oxidation, tribo-film formation, and adhesive wear
Supplemental Material - Natural language processing in narrative breast radiology reporting in University Malaya Medical Centre
No full textSupplemental Material for Natural language processing in narrative breast radiology reporting in University Malaya Medical Centre by Wee Ming Tan, Wei Lin Ng, Mogana Darshini Ganggayah, Victor Chee Wai Hoe, Kartini Rahmat, Hana Salwani Zaini, Nur Aishah Mohd Taib, and Sarinder Kaur Dhillon in Health Informatics Journal</p
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