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- 저자 : M. Surendar (검색결과 2 건)
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Study on polyester resin concrete for applications in chemical & power plant industry
S. Lavanya Prabha,M. Surendar,G. Prabha,A. Mohan 한양대학교 청정에너지연구소 2023 Journal of Ceramic Processing Research Vol.24 No.5
Polyester polymer resin concrete is a type of concrete that incorporates polyester polymer resins as a binder instead oftraditional cement. In this study, concrete was made using three resins: vinyl ester resin, superior vinyl ester resin, andbisphenolresin. The ingredients of polyester polymer resin concrete are three types of polyester resin, 1-2% of Methyl ethylketone peroxide (MEKP) as the catalyst, Cobalt Octoate as the Accelerator and N, N-dimethylaniline as the promoter of 1%is used to make the binding resin. Along with binding resin calcium carbonate as filler and fine aggregate (normal riversand)passing through 2.36 mm sieve and retained on 600-micron sieve and course aggregate of size 6mm were used to make theconcrete. 36 trail batches were carried out for preliminary investigation targeting a compressive strength of 70 MPa. Theshortlisted batches were taken for detailed investigation on mechanical and durability properties. The stress strain behaviourisstudied and dynamic modulus,poisons ratio is calculated with various correlative equations for mechanical properties. Thedurability properties of the resin concrete were assessed as per ACI 515.2R-13 [1966] for the acid and base solutions. Byimmersing the samples in three diluted acids and two alkaline media, such as 10% sulphuric acid, 10% nitric acid, 10%hydrochloric acid, 10% sodium sulphate, and 10% magnesium sulphate, the durability property is assessed. Variations incompressive strength, mass, and the look of the submerged samples, among other variables, have been studied and it foundthat the Vinyl ester resin concrete possesses a higher acid resistance property.
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Optimizing the Issue of Blood Supply Chain Network Design with a Reliability Approach
Anik Yuesti,Paitoon Chetthamrongchai,Alim Al Ayub Ahmed,Vera Anitra,Surendar Aravindhan,Ravil Akhmadeev,Dedy Achmad Kurniady,Clara Neltje Meini Rotinsulu,M. Kavitha 대한산업공학회 2022 Industrial Engineeering & Management Systems Vol.21 No.2
Supply chain network design of a product is one of the primary and strategic measures in supply chain management that plays a vital role in supply chain performance. Since blood is a special commodity and has no substitute, supply chain management and optimization have a special place among researchers. In this research, for the first time, a two-objective nonlinear mixed integer model is presented to help make strategic and operational decisions in the blood supply chain. The first objective function is related to cost minimization and the second objective function is related to supply chain reliability maximization, which is considered as a series-parallel system. To check the validity of the model, a numerical example is solved using GAMS software, then using MOPSO meta-heuristic algorithm, the model is solved in larger dimensions and while comparing the performance criteria of multi-objective algorithms, the results are reviewed.
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