Scholarly articles: Recent submissions

Now showing items 81-100 of 152

Metamaterial inspired featherlight artificial plasma horn antenna for astronomical and communication applications

Kizhakooden, Joe; Jose, Jovia; Paul, Nees; Simon, Sikha K; Chakyar, Sreedevi P; Andrews, Jolly; Joseph, VP (Wiley Online Library, 2018-12-09)

In this article, we introduce a novel type of horn antenna constructed using artificial plasma sheets. This metamaterial inspired negative permittivity antenna fabricated using thin metallic wires in a specialized manner ...
Humidity Sensitive Flexible Microwave Absorbing Sheet Using Polyaniline–Polytetrafluoroethylene Composite

Paul, Nees; Chakyar, Sreedevi P; Umadevi, KS; Sikha, Simon K; Kizhakooden, Joe; Andrews, Jolly; Joseph, VP (Springer, 2018-06-22)

Pelletized or powdered polyaniline composite, a potential candidate for microwave absorbers, was synthesized in the sheet form for the first time, and its absorption characteristics along with structural, electrical and ...
Frequency-dependent radiation properties of negative permittivity metamaterial reflector antenna

Jose, Jovia; Simon, Sikha K; Kizhakooden, Joe; Sebastian, Anju; Chakyar, Sreedevi P; Paul, Nees; C, Bindu; Andrews, Jolly; Joseph, V P (IOP PUBLISHING LTD, 2019-08-07)

This paper reports a novel type of microwave reflector antenna that uses the frequency-dependent properties of an epsilon negative (ENG) metamaterial medium. The frequency-dependent characteristics of this artificial plasma ...
In situ chemical oxidative polymerisation for ordered conducting polythiophene nanostructures in presence of dioctyl sodium sulfosuccinate

Jose, M Anne; Varghese, Smitha; Antony, M Jinish (NISCAIR, 2016-03)

Polythiophenes (PTs) have been synthesized by chemical oxidative polymerization of thiophene in the presence of an anionic surfactant dioctyl sodium sulfosuccinate (AOT) using ferric chloride as an oxidant in chloroform ...
AOT assisted preparation of ordered, conducting and dispersible core-shell nanostructured polythiophene – MWCNT nanocomposites

Swathy, TS; Jose, M Anne; Antony, M Jinish (Elsevier, 2016-10-26)

Core-shell nanostructured polythiophene-multiwalled carbon nanotube nanocomposites (PT-CNTs) have been synthesised by in-situ chemical oxidative polymerization of thiophene in presence of multiwalled carbon nanotubes (MWCNT) ...
Phytosociological analysis of Myristica swamp forests of Kulathupuzha, Kerala, India

Roby, TJ; Jose, Joyce; Vijayakumaran Nair, P (Indian Academy of Science, 2018-04-25)

The vegetation of Myristica swamp forests in Kulathupuzha, southern Kerala, India, was examined with reference to floristic composition, structure and diversity. Quadrates of 100*10 m were laid inside (17) and outside the ...
Synthesis and characterisation of water dispersible copolymer submicron spheres of poly-(phenylenediamine-co-N-sulfopropyl aniline) via random copolymerisation

Das, K Rohini; Antony, M Jinish (Elsevier, 2016-03-22)

The homopolymers of poly-phenylenediamines (P-PD's) and poly-N-sulfopropyl aniline (PSPA) were synthesized via chemical oxidative polymerization of phenylenediamine monomers and sulfopropyl aniline using ammonium persulfate ...
Statistical analysis of MHD convective ferro-nanofluid flow through an inclined channel with hall current, heat source and soret effect

Sabu, AS; Mathew, Alphonsa; Neethu, TS; George, K Anil (Springer, 2021-05-01)

The role of Hall current, heat source and Soret effects on MHD convective ferro-nanofluid (Fe3O4-water) flow through an inclined channel with porous medium has been theoretically and statistically examined. Velocity, thermal ...
Comparative studies of silane coupled e-glass fiber and e-glass fiber reinforced bismaleimide-epoxy hydroxylated BaTiO3 nanocomposites on the dielectric and mechanical properties

K, Savitha Unnikrishnan; T, Sunil Jose; S, Dinoop Lal (Wiley Online Library, 2021-04-05)

Silane coupled E-glass fiber (SC-EGF) and E-glass fiber (EGF) reinforced bismaleimide (BMI)-epoxy-hydroxylated BaTiO3 (BTOH) nanocomposites with 1–5 wt% of BTOH nanofiller were fabricated by hand lay-up method and compression ...
Lead free, air stable perovskite derivative Cs2SnI6 as HTM in DSSCs employing TiO2 nanotubes as photoanode

Peedikakkandy, Lekha; Naduvath, Johns; Mallick, Sudhanshu; Bhargava, Parag (ELSEVIER, 2018-12)

Cs2SnI6 is an air-stable and non-toxic perovskite variant photovoltaic material which exhibits p-type conductivity under doped conditions. In this work, we report the synthesis and stability studies of Cs2SnI6 towards its ...
1,2,3-Triazolylidene palladium complex with triazole ligand: Synthesis, characterization and application in Suzuki–Miyaura coupling reaction in water

Sasidharan, Drishya; Aji, CV; Mathew, Paulson (Elsevier, 2019-01-01)

Palladium complex containing 1,2,3-triazolylidene and a labile triazole moiety has been prepared and characterized. Simple azide alkyne click reaction using three fold excess of dibromoethane afforded 1-(2-bromoethyl)-4- ...
A simple method to fabricate metal doped TiO2 nanotubes

K, Aijo John; Naduvath, Johns; Remillard, Stephen K; Shaji, Sadasivan; DeYoung, Paul A; Kellner, Zachary T; Mallick, Sudhanshu; Thankamoniamma, Manju; Okram, Gunadhor S; Philip, Rachel Reena (ELSEVIER, 2019-07-01)

A simple electrochemical method for effective doping of TiO2 nanotubes with metals is presented here. The doping is done in a two-stage cost effective process and is found to result in uniform doping concentration, without ...
What Triggers Supramolecular Isomerism in Nonmolecular Solids? A case study of Copper Pyridazine Halides

Thomas, Jency; Ramanan, Arunachalam (Indian Academy of Sciences, 2016-11)

Molecular recognition and aggregation occurring in solution are critical events towards the nucleation and growth of a crystal. However, controlling aggregation towards a particular supramolecular assembly is difficult due ...
Murdannia nampyana (Commelinaceae) sp. nov. from Kerala, India

Joby, Paul; Rogimon, P Thomas; Nisha, P (Wiley online library, 2016-08-25)

Murdannia nampyana sp. nov. (Commelinaceae), collected from a marshy riparian area by the Kadambrayar River, near Bhramapuram Diesel Power Project, Kakkanad, Ernakulam district, Kerala is described. The new species can be ...
Reversing the Activity Center in Doped Pd17Se15 to Achieve High Stability Toward the Electrochemical Hydrogen Evolution Reaction

Sarma, Saurav Ch; Kaja, Sai Manoj; Ann Mary, KA; Peter, Sebastian C (ACS Publications, 2020-04-02)

The use of hydrogen, being an environmentally cleaner source of energy, may reduce the pressing problem of CO2 emissions due to the burning of conventional fossil fuels. However, the prolonged production of hydrogen is a ...
Sn covariance

Kunjunni, Sajana O; Abraham, Sajesh T (Taylor & Francis Online, 2019-06-16)

Main purpose of this paper is to study a robust measure of estimating dependence between random variables that can be used as an alternative to classical covariance estimator. An efficient univariate nested L-estimator ...
Electrochemical Synthesis of Novel Zn-Doped TiO2 Nanotube/ZnO Nanoflake Heterostructure with Enhanced DSSC Efficiency

K, Aijo John; Naduvath, Johns; Mallick, Sudhanshu; Pledger, Jacob W; Remillard, SK; DeYoung, PA; Thankamoniamma, Manju; Shripathi, T; Philip, Rachel Reena (Springer, 2016-07-02)

The paper reports the fabrication of Zn-doped TiO2 nanotubes (Zn-TONT)/ZnO nanoflakes heterostructure for the first time, which shows improved performance as a photoanode in dye-sensitized solar cell (DSSC). The layered ...
Predicting Academic Performance of Students Using a Hybrid Data Mining Approach

Francis, Bindhia K; Babu, Suvanam Sasidhar (Springer, 2019-04-03)

Data mining offers strong techniques for different sectors involving education. In the education field the research is developing rapidly increasing due to huge number of student’s information which can be used to invent ...
Progress on Low-Temperature Pulsed Electron Deposition of CuInGaSe2 Solar Cells

Mazzer, Massimo; Rampino, Stefano; Gombia, Enos; Bronzoni, Matteo; Bissoli, Francesco; Pattini, Francesco; Calicchio, Marco; Kingma, Aldo; Annoni, Filippo; Calestani, Davide; Cavallari, Nicholas; Vijayan, Vimalkumar Thottapurath; Lomascolo, Mauro; Cretì, Arianna; Gilioli, Edmondo (MDPI, 2016-03-16)

The quest for single-stage deposition of CuInGaSe2 (CIGS) is an open race to replace very effective but capital intensive thin film solar cell manufacturing processes like multiple-stage coevaporation or sputtering combined ...
Normal and reverse AOT micelles assisted interfacial polymerization for polyaniline nanostructures

Antony, M Jinish; Jolly, C Albin; Das, K Rohini; Swathy, TS (ELSEVIER, 2019-10-05)

We report here the synthesis of polyaniline (PANI) nanomaterials using sodium bis (2-ethylhexyl) sulfosuccinate (AOT) micelles assisted chemical oxidative interfacial polymerization. We have employed two interfaces ...

Now showing items 81-100 of 152

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