A5108040520- Adsorption and biosorption for pollutant removal
- Phase Change Materials Research
- Nanomaterials for catalytic reactions
- Water Quality and Pollution Assessment
- Dynamics and Control of Mechanical Systems
- Advanced Differential Equations and Dynamical Systems
- Solidification and crystal growth phenomena
- Polymer Nanocomposites and Properties
- Structural Analysis and Optimization
- Nanocomposite Films for Food Packaging
- Groundwater and Isotope Geochemistry
- Quantum chaos and dynamical systems
- Fluid Dynamics and Thin Films
- Elasticity and Wave Propagation
- Control and Dynamics of Mobile Robots
- Metal-Organic Frameworks: Synthesis and Applications
- Heat Transfer and Optimization
- Aluminum Alloys Composites Properties
- Radiative Heat Transfer Studies
- Additive Manufacturing Materials and Processes
- Building Energy and Comfort Optimization
- Additive Manufacturing and 3D Printing Technologies
- Tribology and Wear Analysis
- Natural Fiber Reinforced Composites
- Lattice Boltzmann Simulation Studies
Indian Institute of Technology Bhubaneswar
2012-2024
KIIT University
2012-2024
National Institute of Technology Rourkela
2006-2016
Nanyang Technological University
2004-2006
BASF (Germany)
1999
Defence Institute of Advanced Technology
1969-1982
Laser Science & Technology Centre
1966
Chitosan is a naturally available biopolymer. It has been prepared by alkaline N-deacetylation process of shrimp (Crangon crangon) chitin and fish (Labeorohita) chitin. The physico-chemical properties such as the degree deacetylation (DD), solubility, water binding capacity, fat capacity chitosan yield have indicated that shell scale waste are good sources chitosan. value chitosan, scales commercial was found to be 76, 80 84%, respectively. crystalline index (CrI) 84 82%. Fat 226, 246 446%,...
Abstract This paper describes the synthesis of highly reactive polyisobutene (PIB), a special type PIB used as component in production lubricant and fuel additives. The reactivity chemical structure are described detail, relation to nature product its uses an additive component.
Biosorption studies of Cr(VI) were carried out using waste weed, Salvinia cucullata. Various adsorption parameters studied, such as agitation speed, contact time, pH, particle size, and concentrations adsorbent adsorbate. The equilibrium was achieved in 12 h. A lower pH favoured Cr(VI). kinetics followed pseudo-second-order rate equations. isotherm obeyed both the Langmuir Freundlich models. calculated activation energy (1.1 kJ mol−1) suggested that a diffusion-controlled mechanism....
Abstract Mayurbhanj district is predominantly inhabited by tribal communities. Among the various groups in Odisha, alone accommodates 45 distinct categories. These communities primarily rely on natural water sources such as rivers, streams, and tube wells for drinking purposes without undergoing additional purification processes. Hence, investigating factors affecting groundwater quality essential to ensure its safety mitigate health risks associated with consumption of contaminated water....
The rheological behavior of power plant ash samples collected from JSPL (M/s Jindal Steel & Power Limited, Raigarh), India, was carried out using a HAAKE rotational rheometer (Model: RheoStress 1, Thermo Fisher Scientific). slurry indicated non-Newtonian in the solids concentration range 50–60% by mass. data were best fitted Bingham plastic model studied ranges concentrations and shear rates. Two selective additives, namely sodium silicate Ghadi detergent, applied small quantities (0–0.6%...
The Present investigation has been carried out to study the performance of nano enhanced phase change material (NEPCM) based heat sink for thermal management electronic components. Enthalpy finite volume method is used analysis process in NEPCM. To enhance conductivity (PCM), copper oxide particles fractions 1%, 2.5% and 5% are added PCM. A flux 2500 W/m2 taken as input sink. with PCM compared NEPCM each fraction particle both finned unfinned configurations. It observed that concentration...
Contamination of the aqueous environment by heavy metals and due to discharge metal containing effluents into water bodies is one environmental issues century. Thus, in this work, main concern has been preparation chitin chitosan from raw materials shrimp shells characterization prepared field emission scanning electron microscopy (FESEM) Fourier transform infrared spectroscopy (FTIR). The work was then shifted investigate potentiality Cr+6 adsorption with chitosan. controlled...
Abstract A total-concentration fixed-grid method is presented to model the convection-driven wet chemical etching process. The proposed analogous enthalpy used in modeling of melting and solidification problems. total concentration which sum unreacted etchant reacted defined. governing equation based on newly defined includes interface condition. Hence etchfront position can be found implicitly using method. predict etch front while progresses. Since grid size fixed, there no velocity,...
Friction composite materials based on combinatorial variations of fly ash and graphite were fabricated evaluated Krauss friction tester under inertia-braking mode following the ECE R-90 regulation. The frictional responses, such as fade at elevated temperatures recovery cooling, composites have demonstrated three regimes evolution irrespective composition test runs. with highest content (i.e. 65 wt.%) without graphite, shows performance, comparable fluctuation, permissible fading but wear...
In this work, initially a non-destroyable surface grafting of acid functionalized multiwalled carbon nanotubes (f-MWCNTs) with biopolymer chitosan (CS) was carried out using glutaraldehyde as cross-linking agent via the controlled covalent deposition method which characterized by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). Then, BisGMA (bisphenol-A glycidyldimethacrylate)-polyvinylpyrrolidone (PVP) blend prepared (50:50 wt%) simple sonication...
A total concentration fixed-grid method is presented in this paper to model the two-dimensional wet chemical etching. Two limiting cases are discussed, namely—the diffusion-controlled etching and reaction-controlled concentration, which sum of unreacted reacted etchant concentrations, defined. Using newly defined governing equation also contains interface condition. new update procedure for formulated. For demonstration, finite-volume used solve with prescribed initial boundary conditions....
Purpose – This paper aims to prepare BisGMA (bisphenol-A glycidyldimethacrylate)/jute fibre/fly ash hybrid composites with improved mechanical and corrosive properties. Design/methodology/approach prepolymer was first synthesised using diglycidyl ether of bisphenol-A methacrylic acid. Then 2-hydroxy ethylacrylate-treated jute fibre sodium hydroxide-treated fly were incorporated in the fabrication dicumyl peroxide, cobalt naphthenate N,N -dimethyl aniline as catalyst, accelerator promoter,...
This paper outlines an innovative approach to functionalise multiwall carbon nanotubes at a reduced functionalisation time and energy consumption, preserving their structural integrity, with objective of potential application the as reinforcement in aluminium matrix composites processed through liquid state method. Longstanding problems carbide formation reaction by-product is expected be by reinforcing functionalised developed Carbon nanotube surfaces were oxidised following four different...