Indian Institute of Information Technology Guwahati

Basin-scale organization of groundwater and surface water during the monsoon season: Hydrochemical and isotopic insights from the Brahmaputra River Basin, Northeast India

Study region The Indian sector of the Brahmaputra River Basin (BRB). Study focus We co-evaluated groundwater (GW) and river water (RW) across the Indian BRB using a synoptic monsoon-season survey (July 2022; n = 83; 36 GW, 47 RW). Hydrochemistry, stable isotopes (δ²H, δ¹⁸O), wate...

Anisotropic metasurface-based linear-to-orthogonal linear, circular and elliptical reflective polariser for 6G FR-3 sub-band applications

This paper presents a meta-surface based, anisotropic retro polarisation converter, operating over the electromagnetic spectrum of FR3 band. It provides polarisation conversions from linear-to-orthogonal linear, circular and elliptical polarisations across the sub-band of FR3 [i....

Assessment of pyrolytic algal oil as a sustainable alternative lubricant base oil

Purpose This study aims to investigate the potential of algal oil as a bio-derived alternative to commercial lubricant base oil by analyzing its chemical composition, rheological properties and structural characteristics validated by functional analysis. Design/methodology/approa...

CFD analysis of split-strut spacing and fuel injection angles in a DLR model scramjet combustor

In hypersonic air-breathing propulsion systems, fuel injection and fuel-air mixing strategies play crucial role in ignition and positioning a sustainable flame in available very short residence time. This study numerically investigates the influence of geometric parameters and in...

Synthesis of Azaphenalenone Derivatives Using Aldrone Condensation and Evaluation of Their Anticancer Activities

ABSTRACT Phenalenones (PNs), popular as antifungal, antimicrobial, and anticancer agents, are a fascinating class of naturally occurring photosensitizers. In spite of their importance, doping of the main core of PNs remains unexplored. Herein, we report a facile and green approac...

Evaluation of mechanical properties and durability of biopolymer-cement-treated silty sand

Biopolymers like xanthan gum (XG) are increasingly explored as an environmentally friendly soil binder; however, their combined use with conventional binders and response to moisture-induced effects have received limited attention. This study evaluates the mechanical properties o...