Chalmers University of Technology

Weighted Poisson intensity modelling for marked point processes with real-valued marks

Real-valued marks in spatial point processes are often analyzed separately from first-order intensity estimation or through assumptions specific to their generating mechanism. We propose a Weighted Poisson Intensity approach for incorporating real-valued marks into first-order in...

Data-driven hydrodesulfurization of heavy feeds: from model compounds to refinery-relevant catalyst design, soft sensing, and process optimization

Hydrodesulfurization (HDS) remains the primary industrial route for sulfur removal, but increasingly heavy and complex feedstocks make deep desulfurization more challenging. This review examines the evolution of HDS from model sulfur compounds to refinery-relevant heavy feeds, in...

MicroVision: An open dataset and benchmark models for detecting vulnerable road users and micromobility vehicles

Micromobility is a growing mode of transportation, raising new challenges for traffic safety and planning due to increased interactions in areas where vulnerable road users (VRUs) share the infrastructure with micromobility, including parked micromobility vehicles (MMVs). Approac...

The start of acoustic research at Chalmers University of Technology

At the beginning of the 20th century building acoustics developed from a more empirical field to a fully developed sub-discipline in acoustics. This was supported by the development of measurement techniques required for carrying out laboratory and field measurements and by peopl...

Investigating social drones for recreational running through co-design

Introduction Human-drone interaction is an emerging field investigating ways to extend the conventionally passive role of drones with autonomous, socially interactive functionalities. Drones offer unique opportunities for applications, such as exercise support, due to their mobil...

The Steklov Spectrum of Convex Polygonal Domains II: Investigating Spectral Determination

Abstract The extent to which the geometry of an object is determined by some associated spectral data is a longstanding problem. We investigate this problem in the context of the Steklov spectrum, focusing on convex polygons. We prove that almost all triangles are uniquely determ...

Who Should Pay? A Framework for a Fair Distribution of Climate Policy Burdens

We propose a normative framework for distributing the responsibility for national climate mitigation efforts among societal actors. The framework aims to inform national policy, emphasizing how justice considerations – alongside efficiency – can enhance public acceptance of clima...

Building dense or compact cities without jeopardizing biodiversity: Insights from bird observations in Gothenburg, Sweden

Abstract A central challenge for sustainable urban development is balancing the trade-offs of high urban density. We examined whether biodiversity can be supported within dense or compact urban areas by analyzing bird species richness and composition across 30 sites in Gothenburg...

Recent Progress in Ab Initio Nuclear Theory for Precision Physics Searches in Muonic Atoms and Superallowed β Decays

Precision tests of the Standard Model at low energy are increasingly limited by nuclear-structure theory rather than by experiments. We review two such cases: the two-photon-exchange correction to the Lamb shift in muonic atoms, and the γW box radiative correction to superallowed...

Classical BV cohomology of the N = 1 spinning particle

A bstract We show that the classical Batalin-Vilkovisky cohomology at negative ghost number of the spinning particle, observed in ref. [1], is removed by a Koszul-Tate resolution involving saturation of Grassmann odd variables. The model thus satisfies the axioms of Felder and Ka...

From community building to commodity production: the political economy of the Swedish housing and building industry

Abstract The Swedish building industry has been going through a neoliberal transformation from community building to commodity production. In this article, we employ mixed-methods research aiming at addressing what this structural transformation entails and what its (adverse) eff...

Beyond benchmarking: an expert-guided consensus approach to spatially aware clustering

Spatial omics technologies have revolutionized the study of tissue architecture and cellular heterogeneity by integrating molecular profiles with spatial localization. In spatially resolved transcriptomics, delineating higher-order anatomical structures is critical for understand...

A layered dynamic material flow framework for modeling building renovations

Abstract Dynamic material flow analysis (dMFA) is widely used to study the material demands of residential building stocks. In most of the studies conducted to date, buildings are modeled as homogeneous units instead of a system of components. A limitation of this assumption is t...

Influence of speech characteristics on working memory and perceived workload: Findings from experimental listening experiments

Exposure to background speech is known to impair working memory performance, a concern particularly relevant in open-plan office environments. This study aimed to examine how specific characteristics of speech, including semantic content and sound pressure level, affect cognitive...

Wehrl Inequalities for Matrix Coefficients of Holomorphic Discrete Series

Abstract Let G be a Hermitian Lie group. We prove Wehrl-type $$L^2(G)-L^{p}(G)$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msup> <mml:mi>L</mml:mi> <mml:mn>2</mml:mn> </mml:msup> <mml:mrow> <mml:mo>(</mml:mo> <mml:mi>G</mml:mi> <mml:mo>)</mml:mo> <...

Facilitating megacity electricity decarbonization via grid-interactive demand-side resource management

City power systems face intensified mismatches between generation and dynamic demand under rising zero-carbon energy penetration levels. Although demand-side resource management offers mismatch mitigation potential by regulating load patterns, its city-level capability remains un...

Influence of piston cooling jet and renewable fuel blends on particulate emissions in a gasoline engine

Replacing a portion of the hydrocarbons in fossil fuels with renewable ones can lower net carbon dioxide (CO 2 ) emissions but may increase engine-out pollutants. Gasoline direct injection (GDI) engines emit particle number (PN) emissions due to fuel evaporation, mixing, and fuel...

Fast, unconditional reset and leakage reduction in fixed-frequency transmon qubits

Abstract On-demand qubit-state initialization is a prerequisite for quantum computation. We demonstrate such a protocol in a device consisting of fixed-frequency transmon qubits pair-wise coupled via tunable couplers — an architecture that is also compatible with the surface code...

Silica-EmbeddedProteins Enable Higher Yield and AtomicIon Detection in Deep-UV Laser-Assisted Atom Probe Tomography

Abstract Determining the 3D structure of proteins is a long-standing challenge in the life sciences and is of paramount importance for understanding fundamental biological processes and advancing pharmaceutical development. Experimental techniques such as X-ray diffraction, nucle...

The Total and Polarized Radio Emission from the Innermost Jets of a High-Redshift Quasar and a Candidate at Parsec-Scale Resolution

High-frequency very long baseline interferometry (VLBI) polarimetry probes synchrotron-emitting plasma closer to the central engines of radio-loud active galactic nuclei (AGNs), but observations above 43 GHz are technically demanding. We present 22-GHz European VLBI Network obser...