Search results for: C. Loganathan

Items from 1 to 20 out of 24 results

article

Synthesis, spectroscopic investigations (FT-IR, NMR, UV–Vis, and TD-DFT), and molecular docking of (E)-1-(benzo[d][1, 3]dioxol-6-yl)-3-(6-methoxynaphthalen-2-yl)prop-2-en-1-one

A. Therasa Alphonsa, C. Loganathan, S. Athavan Alias Anand, S. Kabilan

Journal of Molecular Structure > 2017 > 1130 > C > 1018-1023

The compound (E)-1-(benzo [d] [1, 3] dioxol-6-yl)-3-(6-methoxy naphthalen-2-yl) prop-2-en-1-one (AKN) was synthesized and characterized by FT-IR, NMR, and UV–Vis spectrometer. The optimized molecular geometry, bond lengths, bond angles, atomic charges, harmonic vibrational wave numbers and intensities of vibrational bonds of the title compound have been investigated by Time dependent- Density Functional...

article

Naked eye and spectrophotometric detection of chromogenic insecticide in aquaculture using amine functionalized gold nanoparticles in the presence of major interferents

C. Loganathan, S. Abraham John

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy > 2017 > 173 > C > 837-842

Detection of a chromogenic insecticide, malachite green (MG) using 3,5-diamino-1,2,4-triazole capped gold nanoparticles (DAT-AuNPs) by both naked eye and spectrophotometry was described in this paper. The DAT-AuNPs were prepared by wet chemical method and show absorption maximum at 518nm. The zeta potential of DAT-AuNPs was found to be −39.9mV, suggesting that one of the amine groups of DAT adsorbed...

article

Experimental and numerical analyses of magnesium alloy hot workability

F. Abbassi, M. Srinivasan, C. Loganathan, R. Narayanasamy, more

Journal of Magnesium and Alloys > 2016 > 4 > 4 > 295-301

Due to their hexagonal crystal structure, magnesium alloys have relatively low workability at room temperature. In this study, the hot workability behavior of cast-extruded AZ31B magnesium alloy is studied through hot compression testing, numerical modeling and microstructural analyses. Hot deformation tests are performed at temperatures of 250 °C to 400 °C under strain rates of 0.01 to 1.0 s⁻¹. Transmission...

article

Molecular structure, NMR, UV–Visible, vibrational spectroscopic and HOMO, LUMO analysis of (E)-1-(2, 6-bis (4-methoxyphenyl)-3, 3-dimethylpiperidine-4-ylidene)-2-(3-(3, 5-dimethyl-1H-pyrazol-1-yl) pyrazin-2-yl) hydrazine by DFT method

A.Therasa Alphonsa, C. Loganathan, S.Athavan Alias Anand, S. Kabilan

Journal of Molecular Structure > 2016 > 1106 > C > 277-285

We have synthesized (E)-1-(2, 6-bis (4-methoxyphenyl)-3, 3-dimethylpiperidine-4-ylidene)-2-(3-(3, 5-dimethyl-1H-pyrazol-1-yl) pyrazin-2-yl) hydrazine (PM6). It was characterized using FT-IR, FT-Raman, ¹H NMR, ¹³C NMR techniques. To interpret the experimental data, ab initio computations of the vibrational frequencies were carried out using the Gaussian 09 program followed by the full optimizations...

article

FT-IR, FT-Raman, UV, NMR spectra and molecular structure investigation of (E)-2-(3-chloropyrazin-2-yl)-1-(3-ethyl-2, 6-diphenyl piperidin-4-ylidene) hydrazine: A combined experimental and theoretical study

A. Therasa Alphonsa, C. Loganathan, S. Athavan Alias Anand, S. Kabilan

Journal of Molecular Structure > 2015 > 1100 > Complete > 137-144

This work presents the characterization of (E)-2-(3-chloropyrazin-2-yl)-1-(3-ethyl-2, 6-diphenyl piperidin-4-ylidene) hydrazine (HDE) by quantum chemical calculations and spectral techniques. The structure was investigated by FT-IR, FT-Raman, UV–vis and NMR techniques. The geometrical parameters and energies have been obtained from Density functional theory (DFT) B3LYP (6-31G (d, p)) basis set calculations...

article

Numerical Studies on PEM Fuel Cell with Different Landing to Channel Width of Flow Channel

M. Muthukumar, P. Karthikeyan, M. Vairavel, C. Loganathan, more

Procedia Engineering > 2014 > 97 > Complete > 1534-1542

Proton Exchange Membrane Fuel Cell (PEMFC) is a promising power generating device with high efficiency, zero emissions and working at atmospheric temperature and pressure. The performance of the fuel cell is highly influenced by the operating parameters like temperature, pressure, humidity and mass flow rates of reactant gases; and the design parameters like flow channel designs and dimensions, rib...

article

Study on hot deformation behavior and microstructure evolution of cast-extruded AZ31B magnesium alloy and nanocomposite using processing map

M. Srinivasan, C. Loganathan, R. Narayanasamy, V. Senthilkumar, more

Materials and Design > 2013 > 47 > Complete > 449-455

The hot deformation behavior and microstructural evolution of cast-extruded AZ31B magnesium alloy and nanocomposite have been studied using processing-maps. Compression tests were conducted in the temperature range of 250–400°C and strain rate range of 0.01–1.0s ⁻¹ . The three-dimensional (3D) processing maps developed in this work, describe the variations of the efficiency of power dissipation...

article

Effect of Glass and SiC in Aluminum matrix on workability and strain hardening behavior of powder metallurgy hybrid composites

D.R. Kumar, R. Narayanasamy, C. Loganathan

Materials and Design > 2012 > 34 > Complete > 120-136

In the present investigation, Aluminum hybrid composite has been fabricated by powder metallurgy (P/M) method with a combination of two reinforcements, namely, Glass and Silicon carbide particles. In P/M technique, cold pressing was used for compaction of the reinforced Glass–SiC Aluminum hybrid composites (Al+Glass+SiC). These green compacts were sintered and their workability behaviors were evaluated...

article

Sliding wear behaviour of AZ31B magnesium alloy and nano-composite

M. SRINIVASAN, C. LOGANATHAN, M. KAMARAJ, Q.B. NGUYEN, more

Transactions of Nonferrous Metals Society of China > 2012 > 22 > 1 > 60-65

AZ31B magnesium alloy and nano-composite were manufactured by hybrid casting process and hot extruded at 350°C. The sliding wear behaviour of alloy and nano-composite was estimated at room temperature using the standard pin-on-disc wear test equipment. The tests were conducted under a normal load of 10 N at different sliding speeds ranging from 0.60 to 1.2 m/s for distance up to 2000 m. The wear mechanisms...

article

Effect of glass in aluminum matrix on workability and strain hardening behavior of powder metallurgy composite

D.R. Kumar, C. Loganathan, R. Narayanasamy

Materials and Design > 2011 > 32 > 4 > 2413-2422

A complete experimental investigation on workability behavior of the Al–Glass has been carried out during cold upsetting. The present study has been performed to evaluate the effect of different percentage of Glass addition in Powder metallurgy (P/M) preforms of Al–Glass composite on workability behavior. The material studied in this paper is aluminum with glass as reinforcement. Glass content has...

article

Feasibility of joining AZ31B magnesium metal matrix composite by friction welding

M. Srinivasan, C. Loganathan, V. Balasubramanian, Q.B. Nguyen, more

Materials and Design > 2011 > 32 > 3 > 1672-1676

The present study investigates the feasibility of joining AZ31B magnesium nanocomposites by rotational friction welding. The AZ31B magnesium metal matrix composite, which was reinforced with alumina (Al ₂ O ₃ , average particle size of 50nm) and calcium (Ca), was produced by a hybrid casting process and hot extruded at 350°C. Joining processes were done by varying the friction welding...

chapter

Fuzzy pattern cluster scheme for breast cancer datasets

D Vanisri, C Loganathan

2010 International Conference on Communication and Computational Intelligence (INCOCCI) > 410 - 414

2010 International Conference on Communication and Computational Intelligence (INCOCCI)

Data mining techniques are used for the knowledge discovery process under the large data set environment. Clustering techniques are used to group up the relevant data sets. Hierarchical and partitioned clustering techniques are used for the clustering process. The clustering process is the complex task with high process time. The pattern extraction scheme is applied to find frequent item sets. Association...

article

Modelling of wrinkling in deep drawing of different grades of annealed commercially pure aluminium sheets when drawn through a conical die using artificial neural network

S. Sivasankaran, R. Narayanasamy, R. Jeyapaul, C. Loganathan

Materials and Design > 2009 > 30 > 8 > 3193-3205

This paper presents an artificial neural network (ANN) model for predicting and avoiding surface failure such as wrinkling of sheet metals. Commercially pure aluminium sheets of different grades are drawn into cylindrical cups through conical die. An ANN model has been developed to map the mechanical properties and instantaneous geometry features of deep drawing process. This model is a feed forward...

article

Some study on wrinkling behaviour of commercially pure aluminium sheet metals of different grades when drawn through conical and tractrix dies

R. Narayanasamy, C. Loganathan, J. Satheesh

Materials and Design > 2008 > 29 > 8 > 1654-1665

This paper deals with some aspects of wrinkling behaviour of annealed three different grades of commercially pure aluminium sheets namely ISS 19000, ISS 19600 and ISS 19660 having thickness of 2.00mm when deep drawing into cylindrical cups through conical and tractrix dies using a flat bottomed punch. It is well established that, the use of either a conical die or a tractrix die can enhance the limiting...

article

Study on wrinkling limit of interstitial free steel sheets of different thickness when drawn through Conical and Tractrix dies

R. Narayanasamy, C. Loganathan

Materials and Design > 2008 > 29 > 7 > 1401-1411

This paper deals with the wrinkling limit diagrams of cold rolled and close annealed of different grades of IF Steel sheets, which are used in Automotive Industries. The study pertains to deep drawing into cylindrical cups through Conical and Tractrix dies using a flat bottom punch. It is well established that, the use of either a Conical die or a Tractrix die can enhance the limiting draw ratio compared...

article

Wrinkling behaviour of different grades of annealed commercially pure aluminium sheets when drawing through a conical die

C. Loganathan, R. Narayanasamy

Materials and Design > 2008 > 29 > 3 > 662-700

This paper deals with the deep drawing of circular blanks of three different grades of annealed, commercially pure aluminium sheets of different grades, namely ISS 19000, ISS 19600 and ISS 19660, having a thickness of 2.00mm, into cylindrical cups through Conical die using a flat bottomed punch. It is well established that the use of a Conical die can enhance the limiting draw ratio compared with...

article

Effect of mechanical properties on wrinkling limit diagrams for Aluminum 5086 alloy annealed at different temperature

R. Narayanasamy, J. Satheesh, C. Loganathan

Journal of Materials Science > 2008 > 43 > 1 > 43-54

This article deals with the wrinkling limit diagrams for Aluminium 5086 alloy sheets having thickness of 2.00 mm annealed at three different temperatures namely 200, 250 and 300 °C. The study pertains to deep drawing into cylindrical cups through conical die using a flat bottom punch. When a conical die is employed, the need for a hold down or clamping ring is eliminated. However, this enhances the...

article

The influence of friction on the prediction of wrinkling of prestrained blanks when drawing through a conical die

R. Narayanasamy, C. Loganathan

Materials and Design > 2007 > 28 > 3 > 904-912

This work deals with the deep drawing of prestrained circular blanks into cylindrical cups when drawing through a conical die using flat-bottomed punch. It is well established that the use of a conical die can enhance the limiting drawing ratio compared with that obtainable in a conventional drawing operation. When a conical die is employed, the need for a hold-down or clamping ring is eliminated...

article

Study on wrinkling limit of commercially pure aluminium sheet metals of different grades when drawn through conical and tractrix dies

R. Narayanasamy, C. Loganathan

Materials Science & Engineering A > 2006 > 419 > 1-2 > 249-261

This paper deals with the wrinkling limit diagrams of annealed three different grades of commercially pure sheets, namely ISS 19000, ISS 19600 and ISS 19660 having thickness of 2.00mm when deep drawing into cylindrical cups through conical and tractrix dies using a flat bottomed punch. It is well established that, the use of either a conical die or a tractrix die can enhance the limiting draw ratio...

article

Wrinkling of commercially pure aluminium sheet metals of different grades when drawn through conical and tractrix dies

C. Loganathan, R. Narayanasamy

Materials Science & Engineering A > 2006 > 419 > 1-2 > 331-343

This paper deals with deep drawing of circular blanks of annealed three different grades of commercially pure sheets namely ISS 19000, ISS 19600 and ISS 19660 having thickness 2.00mm into cylindrical cups through conical and tractrix dies using a flat bottomed punch. It is well established that the use of either a conical die or a tractrix die can enhance the limiting draw ratio compared with that...

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Search results for: C. Loganathan

Synthesis, spectroscopic investigations (FT-IR, NMR, UV–Vis, and TD-DFT), and molecular docking of (E)-1-(benzo[d][1, 3]dioxol-6-yl)-3-(6-methoxynaphthalen-2-yl)prop-2-en-1-one

Naked eye and spectrophotometric detection of chromogenic insecticide in aquaculture using amine functionalized gold nanoparticles in the presence of major interferents

Experimental and numerical analyses of magnesium alloy hot workability

Molecular structure, NMR, UV–Visible, vibrational spectroscopic and HOMO, LUMO analysis of (E)-1-(2, 6-bis (4-methoxyphenyl)-3, 3-dimethylpiperidine-4-ylidene)-2-(3-(3, 5-dimethyl-1H-pyrazol-1-yl) pyrazin-2-yl) hydrazine by DFT method

FT-IR, FT-Raman, UV, NMR spectra and molecular structure investigation of (E)-2-(3-chloropyrazin-2-yl)-1-(3-ethyl-2, 6-diphenyl piperidin-4-ylidene) hydrazine: A combined experimental and theoretical study

Numerical Studies on PEM Fuel Cell with Different Landing to Channel Width of Flow Channel

Study on hot deformation behavior and microstructure evolution of cast-extruded AZ31B magnesium alloy and nanocomposite using processing map

Effect of Glass and SiC in Aluminum matrix on workability and strain hardening behavior of powder metallurgy hybrid composites

Sliding wear behaviour of AZ31B magnesium alloy and nano-composite

Effect of glass in aluminum matrix on workability and strain hardening behavior of powder metallurgy composite

Feasibility of joining AZ31B magnesium metal matrix composite by friction welding

Fuzzy pattern cluster scheme for breast cancer datasets

Modelling of wrinkling in deep drawing of different grades of annealed commercially pure aluminium sheets when drawn through a conical die using artificial neural network

Some study on wrinkling behaviour of commercially pure aluminium sheet metals of different grades when drawn through conical and tractrix dies

Study on wrinkling limit of interstitial free steel sheets of different thickness when drawn through Conical and Tractrix dies

Wrinkling behaviour of different grades of annealed commercially pure aluminium sheets when drawing through a conical die

Effect of mechanical properties on wrinkling limit diagrams for Aluminum 5086 alloy annealed at different temperature

The influence of friction on the prediction of wrinkling of prestrained blanks when drawing through a conical die

Study on wrinkling limit of commercially pure aluminium sheet metals of different grades when drawn through conical and tractrix dies

Wrinkling of commercially pure aluminium sheet metals of different grades when drawn through conical and tractrix dies

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