A5034370685- Fluid Dynamics and Thin Films
- Solid-state spectroscopy and crystallography
- Fluoride Effects and Removal
- Organometallic Compounds Synthesis and Characterization
- Inorganic Fluorides and Related Compounds
- Adsorption and biosorption for pollutant removal
- Advanced Battery Technologies Research
- Advancements in Battery Materials
- Arsenic contamination and mitigation
- Advanced Battery Materials and Technologies
- Geochemistry and Elemental Analysis
- Extraction and Separation Processes
- Environmental remediation with nanomaterials
- Fatigue and fracture mechanics
- Microfluidic and Capillary Electrophoresis Applications
- Surface Modification and Superhydrophobicity
- Groundwater and Isotope Geochemistry
- Liquid Crystal Research Advancements
- Nanomaterials for catalytic reactions
- Inorganic and Organometallic Chemistry
- Microfluidic and Bio-sensing Technologies
- Electrohydrodynamics and Fluid Dynamics
- Thermal and Kinetic Analysis
- Adhesion, Friction, and Surface Interactions
- Heavy Metal Exposure and Toxicity
Indian Institute of Technology BHU
2021-2024
Banaras Hindu University
2021-2024
Indian Institute of Science Bangalore
2024
Presidency University
1978-2023
Imperial College London
2021-2022
The Faraday Institution
2021-2022
Indian Institute of Technology Guwahati
2017-2020
Ganga Hospital
2019
Medical College and Hospital, Kolkata
2019
Institute of Post Graduate Medical Education and Research
2019
The expansion of lithium-ion batteries from consumer electronics to larger-scale transport and energy storage applications has made understanding the many mechanisms responsible for battery degradation increasingly important.
Abstract Physics-based electrochemical battery models derived from porous electrode theory are a very powerful tool for understanding lithium-ion batteries, as well improving their design and management. Different model fidelity, thus complexity, is needed different applications. For example, in we can afford longer computational times the use of computers, while real-time control (e.g. electric vehicles) need to perform fast calculations using simple devices. this reason, simplified that...
A degradation model for high-nickel positive electrode materials that undergo a structural reorganisation involving oxygen loss and the formation of disordered (spinel or rock-salt structure) passivation layer is presented first time. The thermally coupled continuum based on single-particle upon LiNi 0.8 Mn 0.1 Co O 2 (NMC811) layered oxide in this instance. theoretical framework assumes shrinking core mechanism, where lattice oxygen, [O], release occurs at interface between bulk layer, rate...
Dispensing a water drop on the thin film of solution composed cellulose acetate (CA) in dimethyl formamide (DMF) forms and porous CA layer at water–DMF interface. While denser rarer CA–DMF manifests Rayleigh–Taylor instability—RTI, dynamically forming interface triggers Saffman–Taylor instability—STI. The combined effects RTI STI enable formation, growth, coalescence, branching an array periodic finger patterns to finally develop into flower-like morphology. A general linear stability...
Surface-altered hydrous iron(<sc>iii</sc>) oxide incorporating cerium(<sc>iv</sc>) (CIHFO) was prepared and characterised<italic>via</italic>modern analytical tools for applications in fluoride removal from groundwater.
Automated diagnosis of glaucoma disease is focused on the analysis retinal images to localize, perceive and evaluate optic disc. Clinical decision support system (CDSS) used for classification in human eyes. This process depends mainly feature type that can be morphological or non-morphological. It originated image technique color feature, texture features, extract structure, contextual. work proposes an empirical study a narrative automated based both Grid Color Moment method as vector...
First-generation cathodes for commercial lithium-ion batteries are based on layered transition-metal oxides. Research ternary compounds, such as LiCoO2, evolved into mixed-metal systems, notably Li(Ni,Mn,Co)O2 (NMCs), which allows significant tuning of the physical properties. Despite their widespread application in devices, fundamental understanding NMCs is incomplete. Here, we review latest insights from multiscale modeling, bridging between redox phenomena that occur at an atomistic level...
Chemical pattern directed spin-dewetting of a macroscopic droplet composed dilute organic solution liquid crystal (LC) formed an ordered array micro- and nanoscale LC droplets. Controlled evaporation the spin-dewetted droplets through vacuum drying could further miniaturize size to level ∼90 nm. The size, periodicity, spacing these mesoscale be tuned with variations in initial loading solution, strength centripetal force on droplet, duration evaporation. A simple theoretical model was...
Application of an electric field across the pressure-driven stratified flow a pair miscible fluids inside microchannel manifests interesting electrohydrodynamic (EHD) instabilities. Experiments uncover distinctive instability regimes with increase in Rayleigh number ( $Ra^{\unicode[STIX]{x1D713}}$ ) – linear-onset regime, time-periodic nonlinear regime analogous to von Kármán vortex street downstream and coherent patterns. The experiments also reveal that such linear instabilities can be...
A bstract Defining finite entanglement entropy for a subregion in quantum field theory requires the introduction of two logically independent scales: an IR scale that controls size subregion, and UV cut-off. In AdS/CFT, is AdS lengthscale, cut-off bulk radial cut-off, specified by dimensionless angles. This data determines Ryu-Takayanagi surfaces their areas AdS/CFT. We argue asymptotically flat space there exists notion “spi-subregion” one can associate to spatial infinity (spi). Even...
The present work is an attempt to unify the lattice statics and dynamics of alkali halide crystal through a phenomenological approach. A particular variant shell model, namely deformable model has been chosen for purpose. different static dynamic properties NaF have calculated on same set parameters being used throughout. results calculation are compared with experiment possible source improvement suggested. In view limited number drastic approximation introduced in certain properties,...
Ceria-incorporated zirconia nanocomposites (CIZNCs) are prepared and characterized by some latest analytical tools. The efficiency of this material is evaluated toward arsenic(III) immobilization for removal via adsorption from its aqueous phases. physicochemical aspects reaction have been reported at optimized pH 5.0. kinetics pseudo-second order type. equilibrium data fit very well with the Langmuir isotherm a monolayer capacity 17.07 mg·g–1 (226 mmol·kg–1) 303 K. Analysis parameters shows...
In the breathing shell model (bsm) many-body interactions generated by 'breathing' motion of ions do not vanish for an alkali halide crystal under homogeneous deformation and hence contribute to many static properties lattice. Though this has been quite successful in region lattice dynamics, no attempt made apply them statics, except so far as elastic indirectly dielectric are concerned. It is now well known that reasonable two-body central interaction able predict correct structure caesium...
Application of an electric field on the pressure-driven flow a fluid inside microchannel can create mixing vortices. The Coulombic force at electrode–fluid interface generates additional stress to engender instability. While previous studies show phenomena two-layer immiscible or miscible flows, we same for single system. Linear stability analysis (LSA), non-linear simulations, and experiments together uncover conditions onset propagation such instabilities with Reynolds (Re) Rayleigh (Raψ)...
Contact instabilities of a thin viscoelastic film on curved surface have been explored with the help linear and nonlinear analyses. The governing equations boundary conditions for deforming zero-frequency solid are linearized to predict time length scales. A long-wave analysis corroborates accuracy eigenvalues obtained from general analysis. While adhesive interaction between contactor stimulates contact instability by subduing restoring elastic tension forces, forces due radial curvature...