Chalmers University of Technology

Magnetic omniconversion: Source-independent molding of magnetostatic fields

Magnetic fields are constrained by the geometry and location of their sources, limiting the ability to freely tailor their spatial distribution. We introduce a general framework to passively convert the magnetic field generated by arbitrary sources into any prescribed desired fie...

Effects of hydrogen–coal mixing on NOx formation during partial decarbonisation of rotary kiln iron ore induration - pilot-scale experiments using spectroscopy and video analysis

This pilot-scale study examines hydrogen–coal co-firing at 0–65% hydrogen energy substitution in a 580-kW furnace representative of industrial iron-ore kiln systems. Five burner families, comprising six tested configurations, varied the relative positions, injection directions an...

Influence of Photonic Crystal Size and Lattice Constant on the Lasing Performance of UV-C PCSELs

Abstract Semiconductor lasers are compact, high-power coherent light sources across a broad wavelength range in the electromagnetic spectrum, including visible and infrared. Despite significant progress, they have yet to achieve the same performance for ultraviolet-C (UV-C) wavel...

YtrG is a functional part of the ytrGABCDEF operon and contributes to phenotypic heterogeneity in Bacillus subtilis

ABSTRACT The Bacillus subtilis ytrGABCDEF operon consists of the transcriptional repressor YtrA, the ATP-binding cassette transporter subunits YtrB, YtrC, YtrD, YtrE, and YtrF, likely forming two distinct transmembrane complexes (YtrB 2 CD and YtrE 2 F 2 ), and the small monotopi...

Selective Recovery of Molybdenum from Steelmaking Dust Leachate Using Cyanex 600

Steelmaking dust generated by steelmaking processes contains significant concentrations of heavy metals, classifying it as a hazardous waste that industries must handle. Among these, molybdenum (Mo) plays a critical role in modern technologies. Its increasing demand, coupled with...

Maximum List r-Colorable Induced Subgraphs in $$kP_3$$-Free Graphs

We show that, for every fixed positive integers r and k, Max-Weight List r-Colorable Induced Subgraph admits a polynomial-time algorithm on $$kP_3$$ -free graphs. This problem is a common generalization of Max-Weight Independent Set, Odd Cycle Transversal and List r-Coloring, amo...

Plasticizer compatibility with amorphous (low-ordered) cellulose and dialcohol cellulose

Abstract Biopolymers such as cellulose are promising candidates for replacing fossil-based plastics, but their processing is often limited by their high glass transition temperature ( T g ) and strong intermolecular hydrogen bonding. Plasticizers can improve processability, yet t...

The Draken Framework v5.0: A Hodge-Theoretic Coherence Theory for Multi-Scale Systems

Version 5.0 of the Draken monograph rebuilds the framework on one mathematical spine: the discrete Hodge decomposition of cochains of a cellular sheaf on a finite 2-complex. Relational data split orthogonally into a gradient part (removable by re-gauging local states), a harmonic...

On the hunt for candidate genes involved in host-adaptation in Pseudomonas aeruginosa using comparative genomics

Abstract Background Pseudomonas aeruginosa is an opportunistic pathogen responsible for causing severe hospital-acquired infections, largely due to its adaptability, diverse range of virulence factors and drug resistance mechanisms. Despite extensive research, a substantial porti...

The Draken Framework v5.0: A Hodge-Theoretic Coherence Theory for Multi-Scale Systems

Version 5.0 of the Draken monograph rebuilds the framework on one mathematical spine: the discrete Hodge decomposition of cochains of a cellular sheaf on a finite 2-complex. Relational data split orthogonally into a gradient part (removable by re-gauging local states), a harmonic...

Multiscale transitional flow in anisotropic nanoparticle suspensions revealed by time-resolved X-ray scatter microscopy

Abstract Complex fluids transition from laminar to transitional flow above a critical control parameter, in a similar manner to their Newtonian counterparts. In a continuum mechanics sense, fluid elements follow the ensuing complex trajectories, which gives rise to secondary flow...

Shaping the future of transit: Innovations and prospects of intelligent connected bus systems

Abstract As urbanization progresses, traffic congestion has become an increasingly severe issue confronting metropolitan areas worldwide. Intelligent connected bus systems (ICBS) emerge as a transformative solution to address this challenge. This review synthesizes ICBS as a laye...

Coordinating Internal and External HMIs for Cooperative Driver-Pedestrian Situation Resolution

Traffic interactions between vehicles and pedestrians are inherently uncertain due to the dynamic nature of the interaction partners’ behavior. Resolutions require mutual understanding of the situation and each other’s intention, typically achieved through explicit and implicit c...

Holistic co-design of fibre-optic distributed acoustic sensing and coherent communication

Integrating sensing into communication is crucial for the fully-connected and intelligent development of modern life. However, existing fiber-optic sensing and communication systems merely coexist without inadequate resource sharing, resulting in limited scalability for large-sca...

Selectivity in Tip-Induced Skeletal Editing via Heteroatom Substitution

Abstract Skeletal editing enables precise structural modifications of molecules at late stages of a synthetic sequence. We recently demonstrated skeletal editing on a single-molecule scale. Voltage pulses applied by the tip of a scanning probe microscope to an oxygen-containing s...

Synthesis of N-A-S-H Gels via Sol–Gel and Hydrothermal Methods: Composition, Microstructure, and Dynamic Adsorption Characteristics for Sr2+

Fly ash-based geopolymers are widely used as solidification matrices for intermediate- and low-level radioactive waste liquids. Their performance relies heavily on the adsorption capacity of the primary component, N-A-S-H gels, which directly governs the long-term stability of th...

Biomass Valorization Through Applications in the Continuous Removal of Iron from Water: Batch Equilibrium and Fixed-Bed Adsorption

Iron is one of the most common constituents in groundwater, and affordable decentralized options for removing residual iron remain limited. This study valorizes two abundant agro-industrial residues, sugarcane bagasse and green coconut mesocarp, as biosorbents for removing residu...

The Cold-Air Outbreaks in the Marine Boundary Layer Experiment model-observation intercomparison project (COMBLE-MIP) – Part 1: Model specification, observational constraints, and preliminary findings

Models struggle to represent the coupled microphysical, turbulent and radiative processes within widespread, long-lived marine cold-air outbreak (CAO) cloud fields, contributing to forecast and climate biases. Here we combine ground-based and satellite measurements to initialize...

Resolving Lateral Heat Transport in GaN‐on‐SiC HEMT Structures via Transient Thermometry

ABSTRACT Understanding lateral heat transport in GaN high‐electron‐mobility transistors (HEMTs) is essential for the thermal management of high‐power and high‐frequency electronics. Here, lateral thermal transport in GaN HEMTs on 4H‐SiC is investigated using electrical thermometr...

A New Product Formula for $$(z;q)_\infty $$, with Applications to Asymptotics

Abstract We express the q -Pochhammer symbol $$(z;q)_\infty $$ ( z ; q ) ∞ as an infinite product of gamma functions, analogously to how Narukawa expressed the elliptic gamma function as an infinite product of hyperbolic gamma functions. This identity is used to obtain asymptotic...