Indian Institute of Technology Madras

Additive manufacturing and post-processing needs: an analysis of defect mitigation and performance enhancement

Additive manufacturing (AM) has revolutionised the production of complex metallic components by enabling unprecedented geometric freedom; however, the layer-by-layer fabrication process inherently generates a complex landscape of defects, including extreme residual stresses, inte...

Unveiling Anisotropic in‐Plane Thermal Conductivity and Thermal Expansion Coefficient in Low‐Symmetry Few‐Layer ReS 2

ABSTRACT ReS 2 belongs to a unique class of 2D materials with low structural symmetry and extremely weak interlayer bonding, which give rise to intriguing thermal properties, like in‐plane anisotropic thermal conductivity (ATC) and anisotropic thermal expansion coefficient (ATEC)...

An Aldehyde-Functionalized Polysaccharide Biosponge for Rapid Absorbable Hemostasis and Skin Tissue Regeneration

Abstract Massive hemorrhage and impaired wound healing continue to pose critical clinical challenges, particularly due to the limitations of currently available commercial hemostatic dressings, which often exhibit delayed clot formation, poor regenerative potential, and incomplet...

Next-Generation Regenerable Fluorine-Free Membrane for Zinc-Polyiodide Redox Flow Batteries

Abstract Zinc-polyiodide redox flow batteries (ZIFBs) are promising for large-scale grid energy storage applications. The membrane plays a vital role by enabling selective ion transport while preventing polyiodide crossover, ensuring the long-term performance of the system. Widel...

Normativity within the Empirical-Axiomatic Framework

I develop a normative extension of my Empirical–Axiomatic Framework (EAF) by connecting its account of empirical systems, self, epistemic capacity, representation, and epistemic limitation with agency, normative agency, value, and normative evaluation. I construct a conceptual pr...

Normativity within the Empirical-Axiomatic Framework

I develop a normative extension of my Empirical–Axiomatic Framework (EAF) by connecting its account of empirical systems, self, epistemic capacity, representation, and epistemic limitation with agency, normative agency, value, and normative evaluation. I construct a conceptual pr...

Synthesis and Characterization of Activated Carbon–Zn‐MOF Composite Derived From Waste Tyres for Supercapacitor Applications

ABSTRACT A porous carbon material was produced from waste tyres and woody biomass through microwave‐assisted pyrolysis followed by KOH activation. A hybrid AC–Zn‐MOF composite was subsequently prepared by dispersing a solvothermally synthesized Zn‐based metal–organic framework (Z...

On the Growth Effect of Net Capital Inflows in Emerging Market Economies: A Panel Threshold Analysis

This study examines the nonlinear growth effects of net capital inflows in a panel of 46 emerging market economies from 2002 to 2021 using dynamic panel threshold models. The findings reveal that FDI inflows impede economic growth under high-inflation regimes but enhance growth w...

Decoupled capacitive-gate electro-osmosis: Phase-controlled bidirectional flow in high-conductivity electrolytes via a modified Poisson–Boltzmann–Stokes framework

Alternating-current electro-osmosis in high-conductivity electrolytes (σ ≈ 1.68 S m−1) is constrained by a single Resistance Capacitance (RC)-pole operating window: Flow velocity peaks at the electric double layer charging frequency fRC and collapses steeply on either side, while...

Characterization of Integrally Closed Simple Extensions of Valuation Rings

Let $$v$$ be a Krull valuation on a field, with valuation ring $$R_v$$ . Consider the irreducible polynomial $$F(x) = x^n + a(bx^k + c)^m$$ in $$R_v[x]$$ , where $$1 \leq km < n$$ , and let $$\theta$$ be a root of $$F(x)$$ . This paper establishes necessary and sufficient conditi...

Universal stress fields for anti-plane strain problems for a new class of elastic bodies

In classical elasticity, universal deformations have traditionally been used to characterize the constitutive response of elastic materials. Within an implicit elastic framework, however, for the subclass of models for which the strain is expressed as a function of the stress, si...

Signatures of rapid trajectory control during finger and arm movements

Normative goal-directed hand and finger movements often follow invariant kinematics, characterized by approximate straight-line trajectories. A fundamental unresolved issue is whether movement trajectories are planned or whether they are a consequence of trajectory-free online co...

Co-loaded pH-Responsive AOT Nanovesicles for Combinatorial Chemotherapy: Structure, Stability, and Mechanism of Drug Release and Anti-Cancer Activity

Abstract Controlled and targeted drug delivery to the diseased site can significantly reduce systemic toxicity and improve therapeutic efficacy by enhancing cellular uptake. In this study, we report the development of biocompatible sodium bis(2-ethylhexyl) sulfosuccinate (AOT)-ba...

Navigating the Carbon Landscape: The Economic and Environmental Footprint of Carbon Capture and Sequestration

Abstract Carbon capture and storage (CCS) plays a critical role in reducing CO2 emissions from industry and the atmosphere, but conventional cost and environmental assessments often overlook impacts across the full life cycle, including capture, transportation, and sequestration....

Visible-Light-Mediated C–N Cross-Coupling through Direct Sensitization of the Ni–BINAM Complex

Abstract A visible-light-mediated C(sp2)–N bond forming coupling reaction has been developed to synthesize N,N-disubstituted arylamines from aryl bromides and aryl/aliphatic amines. This external photocatalyst-free approach proceeds via direct excitation of the in situ-formed Ni-...

Thermo-magnetic characterization and fully coupled finite element modeling of tailored magnetostrictive (Tb 0.3 Dy 0.7 Fe 1.95 ) particulate composites

Giant magnetostrictive rare-earth-alloy-based composites are promising candidates for advanced sensors, actuators, and multifunctional devices yet their applicability restricted at elevated temperatures. In particular, 0–3 type composites enable tailoring of material properties t...

Phase-field analysis of fracture in casing–cement–rock wellbore systems: Effects of casing eccentricity and cement–rock interface strength

Predicting the initiation and propagation of cracks in heterogeneous wellbore systems under complex in-situ conditions remains challenging. We present a hybrid phase-field fracture framework to model crack growth in heterogeneous wellbore systems with weak interfaces. The framewo...

Harnessing WiFi Sensing for Video-less Assessment of Participants’ Engagement during Online Synchronous Meetings

We propose a multi-modal, non-intrusive, and privacy-preserving system WiFiTuned for assessing a behavioral proxy of engagement of users during synchronous online meetings. It uses two sensing modalities, i.e., WiFi Channel State Information (CSI) and audio, captured over the mee...

Dissecting nationalist narratives: Lagaan – a critique of colonialism or a eulogy of colonial governance?

Ashutosh Gowariker’s Lagaan is widely considered one of Bollywood’s most compelling portrayals of anti-colonial resistance in India. The film’s depiction of a small village, resisting exploitative colonial taxation, is often read as a powerful cinematic expression of nationalist...

Topologically complex knotted proteins are processed differentially by ATP ‐dependent proteases ClpXP and ClpAP

Abstract Knotted proteins can present a distinct topological and mechanical challenge to the AAA+ cellular degradation machineries, determined by the relative size of the knot and the pore dimensions of these enzymes. In this study, we investigated the degradation mechanism of kn...