Indian Institute of Technology Kanpur

Tunable Nonlinear Landscapes in Graphene Nanoelectromechanical Systems

Abstract Nonlinear nanomechanical resonators give convenient solid-state access to classical analogs of extreme nonlinear optics and to phononic signal processing. Here we report integer harmonic generation, phononic frequency sideband comb, and reverse period-doubling dynamics i...

Emergent coherent-incoherent phonon crossover enables ultralow lattice thermal conductivity in 3D double perovskite

The interplay between coherent (wave-like) and incoherent (particle-like) phonon transport is central to heat conduction, yet experimental evidence of their crossover in bulk three-dimensional (3D) crystals remains scarce. Here, we report intrinsically ultralow lattice thermal co...

Emotional reactivity and decision-making under social deprivation: the role of trait anxiety during quarantine

Abstract Social isolation measures enforced during the COVID-19 pandemic highlighted the importance of the social environment in shaping affective states and decision-making. However, the day-to-day experience and psychological recovery from social deprivation, especially among i...

Multiscale finite element modeling and analysis of magnetically-influenced double diffusive Casson fluid flow in a complex domain

In this work, the development of a robust numerical scheme for solving the MHD mixed convective double diffusive Casson fluid flow in a doubly staggered cavity is presented. The mathematical model incorporates the effects of multiple forces arising from magnetic fields, double di...

Free Energy and Diffusivity in the Fokker–Planck Theory of Polymer Translocation

Abstract A robust theoretical framework describing polymer translocation through nanopores is important for developing novel applications of nanopore technology in single-molecule characterization of biological and synthetic polymers. In this work, we revisit the Fokker–Planck ba...

Ergonomic design and evaluation of woodworking chisel

Background Chiselling involves repetitive, precision work with constrained postures and high hand loads, contributing to upper-limb musculoskeletal disorders among artisans. Despite extensive work on workstation ergonomics and general hand-tool design, few studies have systematic...

Modulating Spin‐States of Active Catalysts for Efficient Urea Oxidation in Anion Exchange Membrane Electrolyzer

ABSTRACT The electronic properties of active M(O)OH catalysts can be effectively modified by tailoring the characteristics of their corresponding precatalysts. Herein, we report a coordination site‐modulated precatalyst to access active catalysts for efficient electrocatalytic ur...

Vibrational strong coupling influences product selectivity in a model for post-transition-state bifurcation reactions

In this study, we explore the possibility of modulating product selectivity (branching ratios) in post-transition-state bifurcation reactions via vibrational strong coupling (VSC) to an optical cavity. Detailed classical and quantum dynamical calculations on a model potential rev...

CoRSEER: the calculator of rock surface exposure age and erosion rates for luminescence rock surface exposure dating

Luminescence rock surface exposure dating (LRSED) estimates the duration of rock surface exposure and the rate of erosion by analysing changes in luminescence with depth below the surface. The wider use of this method has been slowed by limitations in mathematical analysis, such...

Nitrate-Functionalized Azetidines for Synergistic Combustion in Ammonium Perchlorate-Based Propellant Formulations

Abstract The development of high-performance energetic fuel components with rapid ignition characteristics is crucial for next-generation ammonium perchlorate (AP)-based composite propellants. Herein, we report a series of pyrimidine- and pyrazine-substituted azetidine nitrate es...

Closed-Form Solutions for Temperature-Dependent Suction Stress under Transient Infiltration in Unsaturated Soil: An Application for Stability Analysis of Strip Plate Anchors

Abstract The soil layer up to a certain depth below the ground surface exists in an unsaturated state, where factors such as precipitation, evaporation, and prolonged subsurface heat waves control the state and material properties of soil. The suction stress that contributes to t...

Interface engineered perpendicular magnetic anisotropy-controlled propagation of magnetic domain

We report the impact of ferromagnetic layer thickness and stack configuration on the magnetic properties, perpendicular magnetic anisotropy (PMA), modified magnetization switching mechanisms, and creep regime domain wall (DW) dynamics, including their propagation velocity, in a P...

Magnetic-field tuning of quantum phase slips in a macroscopic granular aluminum film

Quantum phase slips (QPSs) fundamentally govern low-temperature dissipation in one-dimensional nanoscale superconductors but remain largely unexplored in macroscopic architectures lacking strict geometric confinement. In this work, the magnetic-field-tuned evolution of the macros...

A validated IL1β-induced caprine ex vivo early osteoarthritis model reveals disease-modifying efficacy of TC-S 7009 via HIF-2α inhibition

Osteoarthritis (OA) is a debilitating multifactorial joint disease lacking effective disease-modifying OA drugs (DMOADs). High failure rates for clinical trials in OA could be due to inadequate screening approaches that rely on single target strategies and late-stage disease mode...

The infrared lock on range equation: non-linear interplay of source, atmosphere and sensor

Abstract Infrared signature reduction is widely pursued under the assumption that lowering target radiant intensity directly reduces detection range. However, infrared detection is governed by a nonlinear interaction between target emission, atmospheric attenuation, background ac...

Zeeman quantum geometry as a probe of unconventional magnetism

Unconventional magnets with momentum-dependent spin-splitting but zero net magnetization form a recently identified class of collinear magnets that are challenging to probe via conventional means. We show that these systems can be distinguished through their intrinsic gyrotropic...

Hydrogen Bonds Regulate Paramagnetic Spin Delocalization in Ferric Hemes

Abstract Hydrogen bonds in metalloprotein active sites regulate reactivity and facilitate electronic communication between metal centers and their surrounding environment. However, systematic control over hydrogen-bond-mediated spin delocalization has not been achieved in a synth...

Bifunctional architecture enables substrate catalysis and channeling in Paracoccus TMAO demethylase

Substrate channeling enhances efficiency and prevents toxicity by directing unstable intermediates between active sites. Trimethylamine N-oxide demethylase (TDM) degrades trimethylamine N-oxide (TMAO) to dimethylamine and formaldehyde (HCHO), but the fate of HCHO has remained unc...

LC3 forms functional nanoclusters on autophagosomes

Abstract Autophagosome biogenesis depends on the coordinated action of proteins and lipids. However, how LC3B organizes at high density and contributes to autophagy-associated functions remains unclear. Using molecular dynamics simulations and super-resolution microscopy, we show...

On discrete X-ray transform

We consider a discrete version of X-ray transform going back, in particular, to Strichartz (1982). We suggest non-overdetermined reconstruction for this discrete transform. Extensions to weighted (attenuated) analogues are given. Connections to the continuous case are presented.