N. Karthikeyan is Professor in the Department of Science & Humanities [Mathematics], Kongunadu college of engineering and technology, Trichy . He is completed his Ph. D in Mathematics at Tamil University , Tanjore , Tamil Nadu, India. He is a post graduate in Mathematics from Bharathidasan University, Tiruchirappalli, Tamil Nadu, India. His areas of specialization are Mathematical Modelling, Operation research, Coding Theory.
RESEARCH, TEACHING, or OTHER INTERESTS
Applied Mathematics, Computational Mathematics, Pollution, Waste Management and Disposal
Processing and Characteristics Study of Hydrogen from Sewage and Waste Municipal Water via Gasification Process Melvin Victor De Poures, R. Venkatesh, N. Karthikeyan, S. Manivannan, M. Sugadeva Boopathi, Balakrishnan Baranitharan, S. Madhu, Gopal Kaliyaperumal, V. Sakthi Murugan SAE Technical Papers, 2025 In recent trends, renewable energy has gained significance in worldwide applications due to avail from nature, low cost, and pollution-free. Based on the world population, a large volume of municipal and sewage water waste affects the environmental water sources, resulting in pollution. To save the earth and maintain a green environment, the present investigation aims to produce bio-hydrogen from municipal and sewage waste through a gasification process with a pyrolysis reactor. The temperature and time of the gasification process were varied by 600-900°C and 60 min. The impact of gasification temperature (600-900°C) and 60 min on molar fraction, gas yield, and gasification efficiency behaviour has to be investigated, and higher temperature (900°) with 60 min gasification process showed the superior molar fraction with 18.4 mol/kg hydrogen yield and improved gasification efficiency of 72%. The gained bio-hydrogen suggested energy storage applications.
Sustainable development and conservation of agro-waste coconut shell powder strengthen lightweight aluminum bio-composite for user friendly Murugan Kubendiran, Natarajan Karthikeyan, Chidambaram Ramesh Kannan, Subramanian Manivannan, Rathinavelu Venkatesh, Subbaiyan Naveen Environmental Quality Management, 2024 The sustainable growth of advanced material in metal matrix composites receiving the eco‐friendly hazard‐free composite via recycling waste agro products attains low fabrication cost. The prime goal of this investigation is to develop and strengthen the lightweight aluminum alloy (Al7075) composite through the conservations of 0 wt%, 5 wt%, 10 wt%, and 15 wt% agro‐waste coconut shell using squeeze cast technology. The developed aluminum alloy bio‐composites are promising the best option for replacing conventional metals in several engineering applications like automotive, structural, aerospace, and others. The synthesized Al7075 alloy bio‐composites are studied its physic‐mechanical behavior tag with ASTM standards. The density results revealed nominal improvement, and its mechanical properties of hardness, ultimate tensile strength, and elastic modulus increased significantly. Sample 4 composite contained 15 wt% coconut shell powder found 2.82 ± 0.17 g/cc density with 0.716% porosity level enhanced the hardness, Ultimate tensile strength and elastic modulus of 79 ± 1.1Hv, 238 ± 1.1 MPa and 77.89 ± 2.01 GPa, respectively.
Characteristics of Magnesium Composite Reinforced with Silicon Carbide and Boron Nitride via Liquid Stir Processing R. Venkatesh, Gopal Kaliyaperumal, S. Manivannan, S. Karthikeyan, Vinayagam Mohanavel, Manzoore Elahi Mohammad Soudagar, N. Karthikeyan SAE Technical Papers, 2024 <div class="section abstract"><div class="htmlview paragraph">The present aim of the investigation is to prepare and evaluate the excellence of boron nitride (BN) and silicon carbide nanoparticles on characteristics of magnesium alloy (AZ91D) hybrid nanocomposite. This constitution of AZ91D alloy hybrid nanocomposite is made through the liquid state processing route, which helps to improve the spread of particles in the AZ91D matrix. The impact of BN and SiC on microstructural and mechanical properties like tensile strength, hardness, and impact strength of AZ91D alloy composites are studied, and its investigational results are compared. Besides, microstructural studies have revealed that the structure of composite is found to have better BN and SiC particle dispersion and uniformity. The 5 percentage in weight (wt%) of BN and 5 wt% of SiC facilitated better tensile strength (183 MPa), hardness (85HV), and impact strength (21.4J/mm<sup>2</sup>) behaviour, which are 26, 30, and 35% better than the monolithic AZ91D alloy. This AZ91D/5wt% BN and 5wt% SiC hybrid composite is involved in automotive top roof frame applications.</div></div>
Study of Natural Fiber Incorporated Polypropylene Composite Laminate for Lightweight Applications R. Venkatesh, N. Aravindan, S. Manivannan, S. Karthikeyan, Vinayagam Mohanavel, Manzoore Elahi Mohammad Soudagar, N. Karthikeyan SAE Technical Papers, 2024 <div class="section abstract"><div class="htmlview paragraph">Biodegradable natural fiber-embedded polymer composites offer distinct mechanical properties and are utilized for lightweight applications. However, composites made with untreated natural fibers lack adhesive behaviour, and increased moisture absorption leads to reduced mechanical qualities. To address this, hemp fibers are treated with a 5% sodium hydroxide (NaOH) solution to enhance adhesive strength. The treated fibers are then used to fabricate polypropylene composites through a hand layup process involving compression force. The synthesized composite samples contain 0%, 10%, 20%, and 30% weight (wt%) of hemp fiber and undergo X-ray diffraction (XRD) analysis, as well as tensile, flexural, and impact strength studies. XRD analysis shows a short peak for the hemp fiber and a large peak for the polypropylene matrix. Experimental results indicate that the polypropylene composite with 30 wt% NaOH-treated hemp fiber exhibits increased tensile strength (53 MPa), improved flexural strength (61 MPa), and enhanced impact strength (6 kJ/m<sup>2</sup>).</div></div>
Energy efficiency in CMOS-compatible TiN MIM plasmonic waveguides quantified by ellipsometry-calibrated FDTD C Sungoum, R Dhairiyasamy, N Karthikeyan, X Wang, D Varshney, ... Journal of Computational Electronics 25 (2), 72 , 2026 2026
Production of ZK60 Magnesium Alloy Hybrid Composites Reinforced with Aluminium Oxide and Carbon Nanotubes through Ultrasonic-Assisted Semisolid Stir Casting B Haldar, K Karthikeyan, TRS Kumar, R Venkatesh, R Jayabal, AA Elfar, ... International Journal of Metalcasting, 1-12 , 2026 2026
Featuring of alumina nanoparticle and NaOH treated flax fiber on function properties of polypropylene composites N Karthikeyan, M Aruna, VV Rajan, S Prabagaran, A Anderson, ... Journal of Polymer Research 32 (2), 35 , 2025 2025 Citations: 5
Processing and characteristics study of hydrogen from sewage and waste municipal water via gasification process MV De Poures, R Venkatesh, N Karthikeyan, S Manivannan, ... Automotive Technical Papers 369401 , 2025 2025 Citations: 2
Hybrid reinforcement’s actions on flexural/tensile/impact strength of polyester composite made via injection molding route G Kaliyaperumal, N Karthikeyan, CB Priya, S Karthikeyan, ... AIP Conference Proceedings 3252 (020211), 1-7 , 2025 2025 Citations: 2
Advancement of low density polyethylene composite characteristics enlarged by the inclusions of roselle fiber and boron nitride G Kaliyaperumal, S Swathi, N Karthikeyan, S Prabagaran, ... AIP Conference Proceedings 3252 (020208), 1-7 , 2025 2025 Citations: 2
Study of natural fiber incorporated polypropylene composite laminate for lightweight applications R Venkatesh, N Aravindan, S Manivannan, S Karthikeyan, V Mohanavel, ... Automotive Technical Papers , 2024 2024 Citations: 7
Characteristics of Magnesium Composite Reinforced with Silicon Carbide and Boron Nitride via Liquid Stir Processing R Venkatesh, G Kaliyaperumal, S Manivannan, S Karthikeyan, ... Automotive Technical Papers 358710 , 2024 2024 Citations: 4
Performance evaluation of nano silicon carbide configured aluminium alloy with titanium nanocomposite via Semisolid stir Cast R Venkatesh, G Kaliyaperumal, S Manivannan, S Karthikeyan, ... Automotive Technical Papers , 2024 2024 Citations: 6
Magnesium alloy hybrid composite properties are featured with boron carbide particle for automotive seat frame usage S Manivannan, R Venkatesh, G Kaliyaperumal, S Karthikeyan, ... Automotive Technical Papers , 2024 2024 Citations: 6
Effect of silicon carbide addition and jute fiber surface treatment on functional qualities of low-density polyethylene composites R Venkatesh, G Kaliyaperumal, S Manivannan, S Karthikeyan, ... Automotive Technical Papers , 2024 2024 Citations: 5
Sustainable development and conservation of agro‐waste coconut shell powder strengthen lightweight aluminum bio‐composite for user friendly M Kubendiran, N Karthikeyan, CR Kannan, S Manivannan, R Venkatesh, ... Environmental Quality Management 33 (4), 551-557 , 2024 2024 Citations: 10
Significance of hemp fiber on mechanical and thermal performance of polypropylene nanocomposite developed by compression mould technique R Venkatesh, C Devanathan, D Dillikannan, P Akila, RM Kamatchi, ... Journal of The Institution of Engineers (India): Series D, 1-5 , 2024 2024 Citations: 30
Performance evaluation and conservation of waste solid plastics into alternative fuel for a pollution‐free environment R Venkatesh, S Manivannan, N Karthikeyan, M Kubendiran, CR Kannan, ... Environmental Quality Management 33 (2), 103-110 , 2023 2023 Citations: 10
Effective utilization of silica from waste cow dung ash filler reinforced biodegradable jute epoxy composites: influence of silica on its mechanical properties NKSM R. Venkatesh, M. K. V. Karthikeyan, R. Sasikumar, C. B. Priya Biomass Conversion and Biorefinery 14 (18), 22401–22411, (2024) , 2023 2023 Citations: 24
Experimental Investigation of Material Removal Rate Parameters in ECM for Aluminum Hybrid Matrix Composites Using the RSM Technique NK M. Naga Swapna Sri ,P. Anusha ,Vittel Rao Rajendranrao Krishnajirao ... Advances in Materials Science and Engineering 2023 (https://doi.org/10.1155 … , 2023 2023
Resolving the Transportation Problem with Hexagonal Intuitionistic Fuzzy Numbers N Karthikeyan, R Srinivasan, ES Mohammad 2023 Citations: 8
Conservation of waste melon shell and fly ash utilized as reinforcements for aluminum alloy matrix in terrestrial ecosystem acquired green hybrid composites S Manivannan, R Venkatesh, M Kubendiran, CR Kannan, N Karthikeyan, ... Environmental Quality Management , 2023 2023 Citations: 14
Approximate Analytical Solution of First Order Linear Fuzzy Differential Equations using Godunov Method NKKB R. Srinivasan AIP Conference Proceedings 2473 (020022 (2022)), 1-11 , 2022 2022 Citations: 31
A Proposed Method to Solve Transportation Problem by Generalized Pentagonal and Hexagonal Fuzzy Numbers NK R Srinivasan International Journal of Aquatic Science 12 (2), 1499-1509 , 2021 2021 Citations: 35
MOST CITED SCHOLAR PUBLICATIONS
Method for solving fully fuzzy transportation problem to transform the materials DVV R. Srinivasan, N. Karthikeyan, K. Renganathan Materials Today: Proceedings 37, 431-433 , 2020 2020 Citations: 143
Proposed Technique to Resolve Transportation Problem by Trapezoidal Fuzzy Numbers AJ R Srinivasan, N Karthikeyan INDIAN JOURNAL OF SCIENCE AND TECHNOLOGY 14 (20), 1642-1646 , 2021 2021 Citations: 95
A Proposed Method to Solve Transportation Problem by Generalized Pentagonal and Hexagonal Fuzzy Numbers NK R Srinivasan International Journal of Aquatic Science 12 (2), 1499-1509 , 2021 2021 Citations: 35
Approximate Analytical Solution of First Order Linear Fuzzy Differential Equations using Godunov Method NKKB R. Srinivasan AIP Conference Proceedings 2473 (020022 (2022)), 1-11 , 2022 2022 Citations: 31
Significance of hemp fiber on mechanical and thermal performance of polypropylene nanocomposite developed by compression mould technique R Venkatesh, C Devanathan, D Dillikannan, P Akila, RM Kamatchi, ... Journal of The Institution of Engineers (India): Series D, 1-5 , 2024 2024 Citations: 30
Effective utilization of silica from waste cow dung ash filler reinforced biodegradable jute epoxy composites: influence of silica on its mechanical properties NKSM R. Venkatesh, M. K. V. Karthikeyan, R. Sasikumar, C. B. Priya Biomass Conversion and Biorefinery 14 (18), 22401–22411, (2024) , 2023 2023 Citations: 24
A proposed ranking method to solve transportation problem by pentagonal fuzzy numbers R Srinivasan, N Karthikeyan, A Jayaraja Turkish Online Journal of Qualitative Inquiry (TOJQI) 12 (3), 277-286 , 2021 2021 Citations: 16
Application of First Order differential Equations in Electrical Circuits N Karthikeyan, R Srinivasan Asian Journal of Research in Social Sciences and Humanities 6 (8), 93-99 , 2016 2016 Citations: 16
Conservation of waste melon shell and fly ash utilized as reinforcements for aluminum alloy matrix in terrestrial ecosystem acquired green hybrid composites S Manivannan, R Venkatesh, M Kubendiran, CR Kannan, N Karthikeyan, ... Environmental Quality Management , 2023 2023 Citations: 14
Sustainable development and conservation of agro‐waste coconut shell powder strengthen lightweight aluminum bio‐composite for user friendly M Kubendiran, N Karthikeyan, CR Kannan, S Manivannan, R Venkatesh, ... Environmental Quality Management 33 (4), 551-557 , 2024 2024 Citations: 10
Performance evaluation and conservation of waste solid plastics into alternative fuel for a pollution‐free environment R Venkatesh, S Manivannan, N Karthikeyan, M Kubendiran, CR Kannan, ... Environmental Quality Management 33 (2), 103-110 , 2023 2023 Citations: 10
Resolving the Transportation Problem with Hexagonal Intuitionistic Fuzzy Numbers N Karthikeyan, R Srinivasan, ES Mohammad 2023 Citations: 8
Study of natural fiber incorporated polypropylene composite laminate for lightweight applications R Venkatesh, N Aravindan, S Manivannan, S Karthikeyan, V Mohanavel, ... Automotive Technical Papers , 2024 2024 Citations: 7
ANALYSIS OF BULK ARRIVALS IN QUEUEING MODELS SY Mohamed, N Karthikeyan STUDIES 4 (4) , 2018 2018 Citations: 7
Performance evaluation of nano silicon carbide configured aluminium alloy with titanium nanocomposite via Semisolid stir Cast R Venkatesh, G Kaliyaperumal, S Manivannan, S Karthikeyan, ... Automotive Technical Papers , 2024 2024 Citations: 6
Magnesium alloy hybrid composite properties are featured with boron carbide particle for automotive seat frame usage S Manivannan, R Venkatesh, G Kaliyaperumal, S Karthikeyan, ... Automotive Technical Papers , 2024 2024 Citations: 6
Featuring of alumina nanoparticle and NaOH treated flax fiber on function properties of polypropylene composites N Karthikeyan, M Aruna, VV Rajan, S Prabagaran, A Anderson, ... Journal of Polymer Research 32 (2), 35 , 2025 2025 Citations: 5
Effect of silicon carbide addition and jute fiber surface treatment on functional qualities of low-density polyethylene composites R Venkatesh, G Kaliyaperumal, S Manivannan, S Karthikeyan, ... Automotive Technical Papers , 2024 2024 Citations: 5
Characteristics of Magnesium Composite Reinforced with Silicon Carbide and Boron Nitride via Liquid Stir Processing R Venkatesh, G Kaliyaperumal, S Manivannan, S Karthikeyan, ... Automotive Technical Papers 358710 , 2024 2024 Citations: 4
Application of First Order differential Equations to Heat Transfer Analysis in solid N Karthikeyan, A Jayaraja International Journal of Engineering and Innovative Technology (IJEIT) 5 (8 … , 2016 2016 Citations: 4