19 hasil untuk "P. Selvakumar"

Drying Diverse Temperatures alters the Physico-Chemical and Phytochemical Properties of Moringa Flowers

P. Selvakumar

Journal of Preventive, Diagnostic and Treatment Strategies in Medicine, Vol. 2 No. 1 · 2023 · Inggris · DOAJ

BACKGROUND: Moringa flowers are most excellent suited for both raw and lightly cooked application such as frying or simmer. Moringa flowers are a good quality foundation of vitamin A, a nutrient that can facilitate boost the immune system and guard overall vision health. Moringa oleifera contains…

Pharmacognostical and Phytopharmacological Review on Coatbuttons

P Selvakumar

Journal of Preventive, Diagnostic and Treatment Strategies in Medicine, Vol. 1 No. 4 · 2022 · Inggris · DOAJ

Tridax procumbens L., regularly known as coatbuttons or Tridax daisy, is a species of flowering plant in the family Asteraceae. T. procumbens are well identified for their medicinal properties among local natives. Besides being habitually used for dropsy, anemia, ulcer, piles, arthritis, gout…

Phytochemical and pharmacological profile review of Bryophyllum pinnatum

P Selvakumar

Biomedical and Biotechnology Research Journal, Vol. 6 No. 3 · 2022 · Inggris · DOAJ Scopus

Herbs are plants grown for their medicinal, flavoring, or aromatic properties. Herbal treatments are safe and efficient for treating a wide range of ailments. Western medicine, or allopathy, is primarily reliant on medicinal plants for some of its constituents. Herbal plants are the traditional and…

Physics informed neural network prediction of heat transfer mechanisms in manufactured sand for thermal energy storage systems

S. Ananth; P. Selvakumar; Amirdha Sher Gill

Frontiers in Energy Efficiency, Vol. 4 · 2026 · Inggris · DOAJ

Manufactured sand (M-Sand) is a low-cost granular medium for sensible heat storage and characterising the internal temperature field during charging requires either dense instrumentation or a physics-consistent model. In a previous experimental study, an M-Sand packed-bed thermal energy storage…

Chemically Modified Cellulose Capped Zinc Oxide Nanocomposite: Spectral and Optical Properties

R. Jagadeeswari; P. Selvakumar; V. Jeevanantham dkk.

Archives of Metallurgy and Materials, Vol. vol. 66 No. No 3 · 2021 · Inggris · DOAJ

In this study, a new chemically modified cellulose polymer-capped ZnO nanopowder prepared by hydrothermal method using chemically modified cellulose polymer as capping agent was successfully reported. The structural characteristics of CMC-capped ZnO nanopowder was reported by FTIR, XRD, SEM and EDX…

Thermal stability and behaviour of paraffin nano Al2O3, graphene and surfactant sodium oleate composite as phase change material

S Selva Prabhu; P Selvakumar; J S Heric

Materials Research Express, Vol. 9 No. 11 · 2022 · Inggris · DOAJ Scopus

Organic phase change materials like paraffin possess high latent heat yet incredibly low thermal conductivity. For improving the thermal conductivity, nanomaterials are introduced into the phase change materials. Thermal energy storage applications benefit from the use of phase transition materials…

Surface and quantum chemical parameters of nickel oxide nanostructures suited for ultraviolet-assisted cationic dye degradation

G. Rathika; R. Jagadeeswari; T. Sathiyapriya dkk.

Kuwait Journal of Science, Vol. 51 No. 2 · 2024 · Inggris · DOAJ Scopus

Nickel oxide (NiO) nanostructures were synthesized through chemical precipitation and subsequently analyzed using a scanning electron microscopy (SEM) and X-ray diffraction (XRD). Rietveld refinement of XRD data revealed a cubic structure with lattice parameters of a = b = c = 4.173 Å. Fourier…

Tribological, mechanical and thermal response of diamond micro-particles reinforced copper matrix composites fabricated by powder metallurgy

Nixon Poulose; P Selvakumar; Jibin T Philip dkk.

Materials Research Express, Vol. 10 No. 1 · 2023 · Inggris · DOAJ Scopus

Copper/Diamond composites have gained a lot of attention in recent years due to their excellent thermal conductivity and their potential for use in high-power electronic devices. The current work targets on an experimental investigation of the tribological,mechanical, and thermal behaviour of…

Economical synthesis of silver nanoparticles using leaf extract of Acalypha hispida and its application in the detection of Mn(II) ions

R. Sithara; P. Selvakumar; C. Arun dkk.

Journal of Advanced Research, Vol. 8 No. 6 · 2017 · Inggris · DOAJ Scopus

This study was focused on the synthesis of silver nanoparticles using Acalypha hispida leaf extract and the characterization of the particles using UV–Vis spectroscopy, XRD, FT-IR, and TEM. The results showed the formation of silver nanoparticles, crystalline in nature, with an average size of…

Ethyl 2-(7-oxo-3,5-diphenyl-1,4-diazepan-2-yl)acetate

G. Jagadeesan; K. Sethusankar; P. Selvakumar dkk.

Acta Crystallographica Section E, Vol. 68 No. 4 · 2012 · Inggris · DOAJ

In the title compound, C21H24N2O3, the diazepane ring adopts a chair conformation. The central diazepane ring forms dihedral angles 67.80 (7) and 72.29 (5)° with the two benzene rings. The ethoxycarbonyl group is disordered over two conformations with site-occupancy factors of…

Ethyl 7-oxo-3,5-diphenyl-1,4-diazepane-2-carboxylate

A. B. Mandal; S. Thennarasu; P. Selvakumar dkk.

Acta Crystallographica Section E, Vol. 68 No. 5 · 2012 · Inggris · DOAJ

The title compound, C20H22N2O3, crystallizes with two independent molecules in the asymmetric unit. In both molecules, the diazepane rings adopt chair conformations. The mean planes of the diazepane rings in the two molecules form dihedral angles of 71.6 (4)/40.3 (5) and…

Investigation on the Effect of Technological Parameters on Emission Factor in 316L Stainless Steel Using Gas Metal Arc Welding

K.V. Satheesh Kumar; P. Selvakumar; K.R. Uvanshankar dkk.

Archives of Metallurgy and Materials, Vol. vol. 66 No. No 2 · 2021 · Inggris · DOAJ

Growing awareness for occupational safety in the welding environment needs a sustainable welding system. Welding gases releases toxic tiny particles and gases that inflict severe health consequences in the weld zone are unsolicited. Some of the other main adverse effects are lung disease…

Blockchain Technology in Energy Markets: Enabling Peer-to-Peer Energy Trading

Aravind A.R.; Santhi G.B.; Patil S.T. dkk.

E3S Web of Conferences, Vol. 591 · 2024 · Prancis · DOAJ

This paper investigates the potential of blockchain technology to transform energy markets through peer-to-peer (P2P) energy trading. Blockchain enables decentralized, transparent, and secure energy transactions, allowing consumers to trade electricity directly, thereby reducing reliance on…

Male breast cancer: A retrospective review of clinical profile from a tertiary cancer care center of India

Dharma Ram; Suhas K Rajappa; Veda P Selvakumar dkk.

South Asian Journal of Cancer, Vol. 6 No. 4 · 2017 · Inggris · DOAJ Scopus

Aim: Present study was done with an aim to analyse the clinicopathological and survival characteristics of male breast cancer patients. Methods: We did a retrospective review of our database and analysed total 27 patients who presented to breast oncology unit of Rajiv Gandhi cancer centre and…

Comparative and Equilibrium Studies on Anionic and Cationic Dyes Removal by Nano-Alumina-Doped Catechol Formaldehyde Composite

V. Karthik; P. Selvakumar; N. Sivarajasekar dkk.

Journal of Chemistry, Vol. 2020 · 2020 · Inggris · DOAJ Scopus

Nano-alumina-doped catechol formaldehyde polymeric composite was prepared, characterized, and applied as an adsorbent for the removal of an anionic dye Congo red (CR) and a cationic dye SafraninO (SF), by adsorption process especially from aqueous solutions. Characterizations such as particle size…

Study of Numerous Resins Used in Polymer Matrix Composite Materials

T. V. Ramakrishnan; M. D. Mohan Gift; S. Chitradevi dkk.

Advances in Materials Science and Engineering · 2022 · Inggris · OpenAlex Scopus

There are a slew of elements at work in the composites sector, from people and markets to technology and innovation, that are continually reshaping the industry's structure. For now, composite materials' winning combination of high strength-to-weight ratio continues to propel them into new areas…

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Brain and Peripheral Atypical Inflammatory Mediators Potentiate Neuroinflammation and Neurodegeneration

Duraisamy Kempuraj; Ramasamy Thangavel; Govindhasamy P. Selvakumar dkk.

Frontiers in Cellular Neuroscience, Vol. 11 · 2017 · Inggris · DOAJ Scopus

Neuroinflammatory response is primarily a protective mechanism in the brain. However, excessive and chronic inflammatory responses can lead to deleterious effects involving immune cells, brain cells and signaling molecules. Neuroinflammation induces and accelerates pathogenesis of Parkinson’s…

Mast Cell Activation in Brain Injury, Stress, and Post-traumatic Stress Disorder and Alzheimer's Disease Pathogenesis

Duraisamy Kempuraj; Govindhasamy P. Selvakumar; Ramasamy Thangavel dkk.

Frontiers in Neuroscience, Vol. 11 · 2017 · Inggris · DOAJ Scopus

Mast cells are localized throughout the body and mediate allergic, immune, and inflammatory reactions. They are heterogeneous, tissue-resident, long-lived, and granulated cells. Mast cells increase their numbers in specific site in the body by proliferation, increased recruitment, increased…