A5075978551- Conducting polymers and applications
- Polymer Nanocomposite Synthesis and Irradiation
- Dielectric materials and actuators
- Advanced Sensor and Energy Harvesting Materials
- Solar and Space Plasma Dynamics
- Geomagnetism and Paleomagnetism Studies
- Magnetic confinement fusion research
- Electromagnetic wave absorption materials
- Geophysics and Gravity Measurements
- Polymer Nanocomposites and Properties
- Coal Properties and Utilization
- Fluid dynamics and aerodynamics studies
- Semiconductor materials and interfaces
- Polymer Science and PVC
- Fire Detection and Safety Systems
- Fire dynamics and safety research
- Nanocomposite Films for Food Packaging
- Silicon and Solar Cell Technologies
- Ionosphere and magnetosphere dynamics
- Characterization and Applications of Magnetic Nanoparticles
- Geological formations and processes
- Geology and Paleoclimatology Research
- Thin-Film Transistor Technologies
- Fluid Dynamics and Thin Films
- Innovations in Education and Learning Technologies
Gujarat University
2013-2024
Halliburton (United Kingdom)
2024
Central Institute of Mining and Fuel Research
2008-2023
Academy of Scientific and Innovative Research
2023
Banaras Hindu University
1987-1992
Abstract In the present communication, an attempt is made to prepare and study structural, optical, aging properties of polyvinylchloride (PVC)-polyvinylpyrrolidone (PVP) blend films for their probable applications as biodegradable/biocompatible materials in biomedical optoelectronics fields. The surface such contact angles free energies are measured investigate interaction polymer with water. These measurements reveal that on increasing weight percentage concentration PVP PVC,...
Summary The paper outlines a comprehensive workflow for calibrating well models and optimizing production. An automated well-model management system ensures data accuracy timeliness by fetching information from the production database. Simultaneously, well-production optimization process identifies opportunities improving field development operations analyzing real-time applying techniques. empowers engineers with data-driven decision-making tools provides recommendations parameters....
Biofriendly conducting polymeric blends and composites exhibiting high dielectric constant loss are promising for applications as sensors, actuators, microwave absorbing materials, fuel cells biomedical applications. A great deal of work is reported on using fillers such conductive nanomaterials, bio ceramics, carbon nanotubes, graphene etc in Polyvinylchloride, Polyvinylpyrrolidone, Polymethylmethacrylate, Polyvinyl alcohol with polymer Polypyrrole, Polyaniline enhancing their...
Present study is carried out to understand the effect of conducting polymer, polypyrrole (PPy) on structural, morphological, thermal and dielectric properties bio-compatible polymer blend film polyvinyl alcohol (PVA) pyrrolidone (PVP). The growth PPy in matrix PVA–PVP was analyzed using XRD, FT-IR SEM studies. shifting positions broadening XRD diffraction peaks PVA–PVP-PPy from that indicates structural modification reduction crystallinity due incorporation PPy. studies suggest scattered at...
The effect of hydrogenation on the capacitance and infrared absorption has been studied for a Pd--n-type-Si diode. reduces carrier density by approximately 30%. spectrum after shows following changes: (i) A small peak near 2340\ifmmode\pm\else\textpm\fi{}10 ${\mathrm{cm}}^{\mathrm{\ensuremath{-}}1}$ (corresponding to phosphorus-hydrogen bond) existing in original sample grows (ii) new band 2150--2050 appears silicon-hydrogen bond). growth is faster than that band. These results show hydrogen...
The neutral particle temperature in the edge region of Aditya-U tokamak has been measured by recording hydrogen Balmer alpha emission spectra at 656.28 nm from different lines sight both high and low field sides. spatial profile Hα recorded using a 1 m multi-track spectrometer. is estimated Doppler broadening spectrum appropriately removing contribution Zeeman splitting spectral lines. A computer simulation code was developed to estimate including mechanisms such as effect simulate along...
In present communication an attempt is made to study the attenuation of microwaves by PPy doped PVC films using complex permittivity measurements in frequency range (8.2–12.4 GHz) at room temperature. The parameters such as distance (also known skin depth or penetration (δ)), power ( D p ) and absorption index k which are important determining microwave absorbing properties material have also been evaluated dielectric parameters. Results show that PVC‐PPy with high loss exhibited strong...
The intrinsic conducting polymer (ICP) Polypyrrole (PPy) was grown in situ the matrix of polyvinyl alcohol (PVA)-Sodium carboxymethyl cellulose (CMC) using chemical oxidative polymerization method. effect in-situ growth PPy on structural, morphological, thermal and dielectric properties PVA-CMC blend films were investigated. Growth seen SEM micrographs along with structural modifications which confirmed by XRD FT-IR analysis suggesting amorphous nature PVA-CMC-PPy films. Thermal suggests...
The way theoretical knowledge is taught and utilized in practice has been completely transformed by the digital transformation of management education. This research investigates ways which tools, platforms, technology have impacted teaching approaches learning environment convergence platforms reducing gap between theory practice, providing students with chances for practical learning. With an emphasis on how well aligns frameworks real-world implementations, this study attempts to evaluate...
Abstract In the present communication, microwave absorbing property in frequency range of 12.4–18 GHz and vitro biocompatibility studies light weight, flexible, biocompatible, environment friendly polymer blend films polyvinylchloride (PVC)-polyvinylpyrrolidone (PVP) (taken ratio 1:1) doped with various percentage weight concentration polypyrrole (PPy) are reported. Addition PPy PVC-PVP matrix exhibited a synergetic effect improving property. film 40 50% concentrations were seen to absorb...
C-V characteristics of Pd/c-Si(n) diodes have been studied before and after hydrogenation. It has found that there is a substantial deviation from theoretical calculations in the plots forward bias. explained terms hydrogen-related acceptor-like states at 0.57 eV, spatially located 0.15 mu m interface.
The dielectric and electric properties of poly (methyl Methacrylate) (PMMA) Poly (vinyl Pyrrolidione) (PVP) in polar solvent have been studied the frequency range 20 Hz to 2 MHz at room temperature. effect environment on electrical parameters such as complex constant (Є*), relaxation times modulus (M*) impedance (Z*) has analysed . Dielectric dispersion curves show that polymer concentration plays an important role governing its segmental motion solution. At low frequencies, ionic conduction...
An influence of adding Polypyrrole (PPy) which is an intrinsically conducting polymer (ICP), on the dielectric dispersion behavior Polyvinyl chloride (PVC) in dilute solution Tetrahydrofuran (THF) at low frequency reported. The blends PVC with PPy forms colloidal suspension THF. study PVC-PPy THF has been carried out range 20 Hz to 2 MHz temperature 303K. effect increasing concentration and electrical parameters such as complex function [ε*(ω)], loss tangent [tan δ], electric modulus...
Dielectric parameters of free standing films pure PVA (PolyvinylAlcohol) and with varying concentrations PVP(Polyvinylpyrrolidone) Polypyrrole were prepared studied in low frequency range (100Hz – 2MHz). The results show that dielectric constant, loss tangent conductivity increase sharply on increasing the concentration PVP above 50wt% polymer matrix. PVA-PVP film PPy showed improvement values complex permittivity, ac within experimental range. This eco friendly polymeric material will be...