Lublin University of Technology

Does Lower Precision Always Save Energy? Benchmarking Energy–Performance Trade-Offs in Weight-Quantized Large Language Model Inference on a GPU

Large language model (LLM) inference is an increasing component of AI energy demand, while the energy effects of weight quantization depend on workload phase and implementation. We benchmarked four LLM families—Gemma 4 E4B IT, Qwen3.5 4B, Nemotron 3 Nano 4B, and Ministral 3 3B In...

Mechanical and Gravimetric Response of Surgical Suture Biomaterials to Commercial Mouthrinses During Static In Vitro Exposure

Surgical sutures are temporary load-bearing biomaterials whose performance in the oral cavity may be altered by postoperative mouthrinses. Seven USP 4-0 suture materials were immersed in four commercial mouthrinses for 3, 7, 10, and 14 days in a balanced factorial design (n = 3 p...

Crashworthiness assessment of thin-walled columns with functionally graded stiffness induced by multi-level spherical crush initiators

Abstract This study investigates the crashworthiness performance of thin-walled columns equipped with functionally graded, multi-level spherical crush initiators. The proposed concept extends previous solutions by introducing a sequence of embossments with varying diameters and d...

Emotions Toward the Institution of the Church: Development of a New Measure

The aim of the study was to develop a scale for measuring emotions toward the Church as an institution. In Study 1, the initial development of the Emotions Toward the Church Scale (ETC) involved compiling a list of 91 Church-related emotions. Following evaluation by expert judges...

Functional Variability and Interchangeability of Commercial Limestone Powders in Concrete: An Experimental and Multivariate Screening Approach

Commercial limestone powders marketed under the same general material designation may differ in composition and particle characteristics, raising questions about their functional interchangeability in concrete. This study combined experimental concrete testing with multivariate d...

Micromechanical Properties and Deformation Behavior of the Co70Fe3Mn3.5Mo1.5Si11B11 Amorphous Alloy

This work reports an experimental study of the micromechanical properties of the Co70Fe3Mn3.5Mo1.5Si11B11 (at. %) amorphous alloy. All experiments were performed at room temperature on the unannealed sample in order to avoid the influence of thermally induced structural relaxatio...

Mechanical Properties and Microstructure of Bonded Joints and Hybrid Structures with a 3D-Printed Honeycomb Core Modified with an Epoxy Matrix Filled with Recycled Polyurethane Foam

This article examines the reuse of waste polyurethane foam (PUF) as a material in line with circular economy principles. The main objective was to evaluate how crushed polyurethane filler of different bulk densities—35 kg·m−3 (PUF35), 60 kg·m−3 (PUF60), and their blends at 1–5 wt...

Oxidized-Lipid Signaling and Ferroptosis as Downstream Mechanisms of Titanium-Associated Peri-Implant Bone Loss

Titanium and its alloys remain the dominant materials in oral implantology, but degradation products released through corrosion, tribocorrosion, and wear are biologically active. This critical narrative review examines oxidized-lipid signaling and ferroptosis as candidate downstr...

Effect of Waste Calcareous Opoka Rock on the Rheological, Physical, and Durability Properties of Thin-Layer Renders for External Thermal Insulation Composite Systems

Waste calcareous opoka rock (WCOR) was investigated as a mass-based replacement for 0.5–1.5 mm granulated dolomite aggregate in thin-layer silicate and mineral renders intended for external thermal insulation composite systems (ETICS). Eight formulations with replacement levels r...

Research on the Self-Heating Effect in Resistance Temperature Sensors for Flow Measurements

This article introduces an experimental approach to evaluating the thermal resistance of industrial resistance temperature sensors and demonstrates their use for estimating the flow rate of the surrounding medium. A new method, the Self-Heating Effect Anemometry (SHEA) method, is...

Effect of adding titanium on corrosion and wear resistance of Al0.7CoCrFeNiTix high entropy alloy

Abstract High-entropy alloys based on the Al-Co-Cr-Fe-Ni system are considered promising materials for applications exposed to wear and corrosive environments. In this study, the effect of titanium addition on the microstructure, mechanical properties, tribological performance an...

A Limit Theorem for Certain Feller Semigroups, and the Distribution of the Local Time for Brownian Motion When it Exits an Interval

Within the framework of the theory of semigroups of operators, we consider a local singular perturbation of a one-dimensional Laplace operator. The Feller semigroups we study describe Brownian motions on an interval with killing that is more and more concentrated around a chosen...

Deep Learning and Large Language Models for Offline Recognition of Latin Handwritten Kazakh Text

This article investigates offline recognition of handwritten Kazakh text in the Latin script using a convolutional recurrent neural network. The relevance of the study is determined by the transition of the Kazakh language to the Latin alphabet and the need to automate the proces...

Evaluation of the Energy and Ecological Effects of a Photovoltaic-Thermal System

This paper presents a detailed analysis of the operating parameters of a solar active installation with seven photovoltaic-thermal (PV/T) collectors with a total area of 14 m2 in a single-family house. A comparative analysis of the work parameters was carried out for the followin...

Comparative Flammability and SEM–EDS Characterization of Contemporary, Aged and Charred Oak Wood from Historic Timber Structures

Historic timber combines structural function with heritage value, yet its fire behaviour is inferred from contemporary wood data. This study provides an integrated, condition-based assessment of contemporary oak (Quercus robur L.) and historic oak from a nineteenth-century half-t...

A Comprehensive Review of SLR Systems: Challenges, Datasets, and Unresolved Gaps

With the rapid advancement of sensor technologies, automated sign language recognition (SLR) has emerged as a critical enabler of inclusive communication systems for individuals with hearing and speech impairments. Although substantial research effort has been directed toward thi...

Influence of cyclodextrin structure on the thermo-oxidative aging resistance of asphalt binder

Thermo-oxidative aging of asphalt is a key challenge facing modern road surfacing technology. The aim of this study is to evaluate zeolite–cyclodextrin hybrid fillers as functional asphalt modifiers, with a focus on their ability to mitigate short- and long-term oxidative aging....