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Rok 2025
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Investigations on Thermal Transitions in PDPP4T/PCPDTBT/AuNPs Composite Films Using Variable Temperature Ellipsometry
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Is DAO Governance Fostering Democracy? Reviewing Decision-Making in Decentraland
PublikacjaThis study analyzes voting dynamics and proposal outcomes within Decentraland, a prominent Decentralized Autonomous Organization (DAO), by examining its voting behaviors and decision outcomes. We offer insights into how a DAO is employed to facilitate decision-making and discern the nature of the issues about which decisions are made. DAOs promise horizontal and democratic decision-making. However, our research reveals...
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ISO test track influence on the EU tyre label noise value
PublikacjaIn 2009, the European Union (EU) introduced a directive governing the labelling of tyres, which underwent revision in 2020. This labelling system encompasses three key parameters related to tyre performance: wet grip (safety), rolling resistance (energy consumption), and external rolling noise (environmental impact). These label values serve as crucial information for customers seeking to purchase replacement tyres for their vehicles....
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Isolated High Step-Up Current-Fed DC-DC Converter With Low Input Current Ripple and Wide Full-Soft-Switching Capability
PublikacjaThis paper presents a current-fed isolated, high step-up dc-dc converter that has low voltage stress on the power switches. The suggested configuration achieves isolation between the input and output using a High-Frequency (HF) transformer. The leakage inductance of the transformer is harnessed to achieve Zero Voltage Switching (ZVS) during power switch turn-on and Zero Current Switching (ZCS) for power diodes across a broad range...
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Isolation Improvement in MIMO Antenna with a Simple Hybrid Technique of Orthogonal and Inverse Currents
PublikacjaThis paper presents a compact high-isolation multiple-input multiple-output (MIMO) antenna developed using a hybrid approach. The proposed technique combines induced orthogonal currents and self-inverse currents to enhance the antenna's performance. Orthogonal currents are generated by strategically etching open slots on the antenna patches, while self-inverse currents are introduced by integration of annular vias. By carefully...
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Joint foreign ownership and global value chains effects on productivity: a comparison of firms from Poland and Germany
PublikacjaPurpose The study aims to examine the joint effects of foreign ownership (FO) and involvement in global value chains (GVCs) on the productivity performance of firms from a catching-up country (Poland) and a leader economy (Germany). Design/methodology/approach The authors use micro-level data on firms combined with several sector-level GVC participation measures. The authors investigate whether the link between productivity and...
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KLUCZOWA ROLA KWALIFIKOWANEGO PRACOWNIKA OCHRONY W BUDOWANIU BEZPIECZEŃSTWA PUBLICZNEGO
PublikacjaWspółczesne wyzwania w zakresie ochrony osób i mienia sprawiają, że grupy interwencyjne odgrywają coraz ważniejszą rolę w systemie bezpieczeństwa. Ich zadania, wymagające zarówno wiedzy teoretycznej, jak i doskonałej sprawności fizycznej oraz umiejętności reagowania w sytuacjach kryzysowych, czynią ten zawód nie tylko odpowiedzialnym, ale i niezbędnym w dzisiejszym świecie. Grupy interwencyjne stanowią mobilne...
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Konstrukcja separatorów dla docierarek tarczowych
PublikacjaNa etapie przygotowania technologicznego operacji docierania maszynowego powierzchni płaskich, płasko-równoległych i walcowych zewnętrznych koniecznym jest opracowanie i wykonanie indywidualnych separatorów przedmiotowych, które są jednocześnie elementami układów wykonawczych docierarek tarczowych. W artykule przedstawiono wytyczne do projektowania tego typu oprzyrządowania, podano stosowane materiały na separatory oraz przykłady...
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La (co)construction des représentations de l’altérité des harragas sur les médias socionumériques algériens
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La construction sémantique de la covid-19 en technodiscours : Cas des pure players d’information algériens
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Laccase-based biocatalytic systems application in sustainable degradation of pharmaceutically active contaminants
PublikacjaThe outflow of pharmaceutically active chemicals (PhACs) exerts a negative impact on biological systems even at extremely low concentrations. For instance, enormous threats to human and aquatic species have resulted from the widespread use of antibiotics in ecosystems, which stimulate the emergence and formation of antibiotic-resistant bacterial species and associated genes. Additionally, it is challenging to eliminate these...
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Large Language Model-Based Tuning Assistant for Variable Speed PMSM Drive with Cascade Control Structure
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Laser melting synthesis of Mg and Si3N4-doped soda-lime glass: structure and thermal analysis
PublikacjaThree series of soda-lime glasses doped with varying contents of Mg, Si3N4, or a combination of both were synthesizedusing laser melting in less than 3 min. The addition of these dopants resulted in notable changes in the structural and ther-mal properties of the glass. Both IR and Raman spectra indicated that the silicate network primarily consisted of Q3 units,with significant amounts of Q2 and Q4 units present in most samples....
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Laser-assisted rapid prototyping of silica optical fibers functionalized with nanodiamonds and multiple active rare earth dopants
PublikacjaWe present a rapid prototyping method for functionalized silica optical fibers, leveraging laser-assisted preform manufacturing combined with powder-in-tube and sol-gel dip-coating techniques. Laser vitrification enables precise thermal control through an ultra-thin heat blade characterized by localized heating and steep temperature gradients, facilitating high-quality glass formation and the integration of heat-sensitive dopants....
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Le héros sadien : cruel comme un vampire ?
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Leadership guide as the tool for managers to improve the company’s efficiency - case study
PublikacjaThe article presents an introduction to the concept of agile leadership based on the available literature on the subject. The article describes comprehensive agile leadership competencies that can be used in project practice. The publication begins with an indication of leadership in the light of current literature on the subject, an explanation of the characteristics of leadership and agile management...
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Learning from mistakes within organizations: An adaptive network-oriented model for a double bias perspective for safety and security through cyberspace
PublikacjaAlthough making mistakes is a crucial part of learning, it is still often being avoided in companies as it is considered as a shameful incident. This goes hand in hand with a mindset of a boss who dominantly believes that mistakes usually have negative consequences and therefore avoids them by only accepting simple tasks. Thus, there is no mechanism to learn from mistakes. Employees working for and being influenced by such a boss...
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L’intégration de nouvelles technologies dans l’apprentissage des langues étrangères à l’école primaire : l’audiovisuel comme exemple
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Literary Texts as a Source of Personality Formation: A Case Study of To Kill a Mockingbird by Harper Lee
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Literature and the Electronic Media of India: An Overview of the Significance of Radio and Television
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Machine learning tools match physician accuracy in multilingual text annotation
PublikacjaIn the medical field, text annotation involves categorizing clinical and biomedical texts with specific medical categories, enhancing the organization and interpretation of large volumes of unstructured data. This process is crucial for developing tools such as speech recognition systems, which help medical professionals reduce their paperwork. It addresses a significant cause of burnout reported by up to 60% of medical staff....
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Magnetic deep eutectic solvents for vortex-assisted liquid phase microextraction method for selective and green extraction of patulin from fruits and fruit juices
PublikacjaIn this study, a vortex assisted magnetic deep eutectic solvent based liquid phase microextraction (VA-MDES-LPME) technique was developed for the extraction of patulin prior to its determination by ultraviolet–visible spectrophotometry (UV–Vis). For this purpose, the use of a magnetic deep eutectic solvent (MDES) consisting of trihexyltetradecylphosphonium chloride, MnCl2, and octanoic acid (molar ratio 1:2:2) was tested to perform...
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Making leadership more agile in theory and practice. Working towards building a leadership agility model
PublikacjaThe article presents leadership taking into account agile practices that were taken from project management. The article provides a description of comprehensive leadership competencies that can be used in project practice. The publication begins with an indication of leadership in the light of current literature on the subject, an explanation of the characteristics of leadership and agile management...
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Marketing as an element of building the image and identity of the foundation - case study
PublikacjaThe article presents an introduction to the concept of building an image and identity as an element of marketing with application in the foundation as an entity. The research has been conducted and based on the available literature on the subject. The article describes comprehensive image and identity of a foundation as a brand that can be used in practice. The publication begins with an indication...
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Marketing communication in enterprises from the high-tech sector - case study
PublikacjaThe article presents an introduction to the concept of marketing communication in high-tech companies based on the available literature of the subject. The article describes comprehensive communication that can be used by high-tech sector. The publication begins with an indication of marketing communication in the light of current literature on the subject, an explanation of the characteristics of...
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Marketing office management with leadership competences application in a manufacturing and service company
PublikacjaThe article presents a description of comprehensive leadership competencies in a company, with the emphasis on managing the marketing department. The publication commences with the indication of the leadership in the light of this literature, explaining what leadership competencies are, how they are identified and what competencies we distinguish. It also explains the purpose of applying leadership...
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Matrix elements for spin-orbit couplings in KRb
PublikacjaIn response to the need to investigate and create a reliable dataset of spin-orbit coupling matrix elements, we have extended our recent work in which we presented results for the potential energy curves and permanent and transition dipole moments in KRb. This paper presents 190 allowed spin-orbit couplings between 30 singlet and triplet +, , and electronic states of the KRb molecule. These results are crucial for accurately interpreting...
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Measurement Technique Comparison in the Entire Fracture Surface Topography Assessment for Additively Manufactured Materials
PublikacjaThis paper focuses on comparing the three microscopic measurement techniques, confocal, focus variation, and point for focus, for the evaluation of entire fracture surface topographies. The measurements were performed using a Sensofar S Neox 3D optical profilometer and the Mitutoyo QV Apex 302 vision measuring system. The test specimens required for measuring were printed through laser powder bed fusion (LPBF) technology using...
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Mechanical performance investigations of a post-tensioned inter-module connection in steel buildings
PublikacjaConnections in modular steel structures are critical for maintaining structural integrity and facilitating ease of installation. Traditional methods, such as on-site welding, require adherence to complex technical specifications. In contrast, post-tensioned steel bolts offer a viable alternative by potentially reducing on-site labor by up to 50 %, providing substantial strength and simplifying assembly. To accurately assess the...
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Mechanical properties of 3D-printed polylactide and short carbon fibres reinforced polylactide laminate subjected to environmental aging
PublikacjaIn this work the mechanical characterisation of fused filament fabricated non-reinforced polylactide and polylactide reinforced with short carbon fibre laminate after environmental aging was reported. In the manufacturing process, the symmetric laminate was used to determine the influence of environmental aging of 3D printed parts. The sterilisation agents and buffered saline solution environment were used as aging factors. Also,...
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Mechanistic insights and atmospheric implications of the degradation reaction of 3-methoxy-1-propanol by reaction with hydroxyl radicals and identification of the end products in the presence of O2/NO
PublikacjaThe study investigated the degradation of 3-methoxy-1-propanol (3M1P) by OH using the M06-2X/6-311++G(d,p) level, with CCSD(T) single-point corrections. We focused on hydrogen atom abstraction from various alkyl groups within the molecule. The rate coefficient for 3M1P degradation was calculated from the sum of the rate coefficients corresponding to the removal of H-atoms from primary (-CH3), secondary (-CH2-), tertiary (-CH<),...
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Membrane-Assisted Dark Fermentation for Integrated Biohydrogen Production and Purification: A Comprehensive Review
PublikacjaAbstract The aim of this review is to provide a comprehensive analysis of the membrane-assisted dark fermentation process for bioH2 production and purification. This review initially analyses the need for and the current state of the art in H2 production through dark fermentation, evaluating the research landscape and the maturity level of the technology. Key factors influencing the dark fermentation process are then examined,...
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Metal extraction using deep eutectic solvents for metal recovery and environmental remediation – A review
PublikacjaMetal extraction has proven to be an effective solution for recovering metal resources and addressing heavy metal pollution. Deep eutectic solvents (DESs) are receiving great attention for metal recovery because of their high selectivity, environmentally friendly character, low melting point, good stability, and low corrosive properties. Particularly, natural deep eutectic solvents (NADESs) and hydrophobic DESs (HDES) have been...
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Metamodel-based optimization of a high-tension cable barrier in crash tests with a large SUV
PublikacjaRoad safety barriers play an important role in improving road safety. Cable barriers are one of the types of road barriers. Cable barriers have favorable collision-related properties, especially in terms of the safety of the vehicle occupants. Despite the continuous development of road barrier systems, the current European standard EN1317, which is used to evaluate the performance of road barriers, does not take into account all...
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Methodological aspects in conducting scientific research - quantitative research
PublikacjaThis article presents a description of the methodological aspects of conducting (quantitative) scientific research. The publication focuses on the media industry, as it was the case in the previous article about methodological aspects of conducting qualitative research. The publication commences with an indication of scientific theory in the light of reference books, a definition and explanation of...
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Methods and Instruments | Scanning Electrochemical Microscopy
PublikacjaScanning electrochemical microscopy is based on the recording of electrolysis currents (Faradaic currents) at a microelectrode (ME) probe that is scanned over the sample. Different working modes are available to couple the electrolysis at the ME to reactions at the sample. The article explains their principles and provides examples of their application. The feedback mode, the sample-generation/tip collection mode, the redox-competition...
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MHD Casson flow across a stretched surface in a porous material: a numerical study
PublikacjaIn this study, we examine the nature of magnetohydrodynamic (MHD) Casson flow of fluid across a stretched surface in a porous material. It studies how the behaviour of Casson fluids is affected by a number of variables, including thermal radiation, chemical processes, Joule heating, and viscosity dissipation. The Keller box strategy, based on the finite difference method (FDM), is used to tackle the complex numerical problem. Graphical...
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Microstructure degradation and creep failure study of the dissimilar metal welded joint of heat-resistant steel and Inconel 617 alloy tested at 650 °C and applied stress range of 100–150 MPa
PublikacjaThe advanced ultra-supercritical (A-USC) power plant system is anticipated to become India's next-generation base-load power station. To adopt AUSC technology, dissimilar welded joints (DWJs) between heat-resistant steels and the nickel-based alloys, using the nickel-based fillers, will need to be implemented. However, failure of dissimilar welded joints from P92 steel base metal or the heat affected zone (HAZ) has been commonly...
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Międzynarodowa wystawa prac dzieci i młodzieży CONNECTIONS w Dehli w Indiach w ramach projektu Reconnecting With Your Culture (UNESCO) przy wsparciu programu Kształtowanie Przestrzeni (IARP)
PublikacjaPoland represented through the work of participants Poland - coordination of RWYC Poland. . Exhibition realised by Dehli Public Shool as part of an international project under the auspices of UNESCO - Reconnecting With Your Culture .
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Mitochondrial exonuclease EXOG supports DNA integrity by the removal of single-stranded DNA flaps
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Mitochondrial exonuclease EXOG supports DNA integrity by the removal of single-stranded DNA flaps
PublikacjaSingle-stranded DNA (ssDNA) is an important intermediate generated during various cellular DNA transactions, primarily during long-patch base excision repair. When displaced by DNA polymerase during strand displacement DNA synthesis, ssDNA forms 5′ overhangs (flaps) that are either cleaved by DNA nucleases or protected from degradation upon binding of single-stranded DNA-binding proteins (SSB). Several nucleases are involved in...
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Mixed, quantum-classical description of electron density transfer in the collision process
PublikacjaIn this work, we investigate an ion-atom model describing the time-dependent evolution of electron density during the collision. For a S3+- H system, numerical simulations are based on classical trajectory calculations, and the electron density behaviour is described with the time-dependent Schrödinger equation. We apply the finite difference method to obtain quantitative insights into the charge transfer dynamics, providing detailed...
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Mobile mutual-visibility sets in graphs
PublikacjaGiven a connected graph G, the mutual-visibility number of G is the cardinality of a largest set S such that for every pair of vertices x, y ∈ S there exists a shortest x, y-path whose interior vertices are not contained in S. Assume that a robot is assigned to each vertex of the set S. At each stage, one robot can move to a neighbouring vertex. Then S is a mobile mutual-visibility set of G if there exists a sequence of moves of...
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Modeling 5G-NR-Based Positioning Accuracy in Urban Environments
PublikacjaModeling phenomena influencing radiocommunication networks, such as 5G-NR, is a key aspect during their development and further optimization. In this paper, one proposes a model, for three different scenario types in urban environments, for user localization accuracy. The model is supported by measurements of real 5G-NR downlink signals carried out in three different urban environments, corresponding to the typical user localization....
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Modeling of damage interaction due to uniaxial creep and subsequent LCF pure torsional loading
PublikacjaThis paper presents experimental results of creep-rupture, preliminary creep and low-cycle torsional fatigue of 2024 aluminum alloy. It analyzes the effect of pre-deformation on fatigue life under pure, cyclic torsion loading conditions. Two different pre-deformation levels were considered in the creep process at 200 ◦C and 300 ◦C. A significant influence of creep predeformation on the cyclic properties of the tested material was...
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Modeling of microstructure evolution during high-temperature oxidation of porous Fe-Cr steels
PublikacjaResearch on the high-temperature oxidation of metals and alloys is experimentally challenging due to the requirement for long-term corrosion exposure, and in the case of porous alloys, due to their complex internal microstructure. In this study, a corrosion model based on the morphological operations of dilation and erosion has been developed. This approach allows for a utilization of various raster representations of the microstructure...
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Modeling the effect of external load variations on single, serie and parallel connected microbial fuel cells
PublikacjaThis paper presents a microbial fuel cell (MFC) model designed to analyze the effect of the external load on MFC performance. The model takes into account the voltage and the chemical oxygen demand (COD) dependence on the external load. The value of the model parameters were calibrated by means of the voltage relaxation method tests using a controlled load current. Laboratory measurements and MATLAB Simulink model computations...
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Modified U-Net with attention gate for enhanced automated brain tumor segmentation
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Monitoring of absorptive model biogas purification process using sensor matrices and gas chromatography
PublikacjaThis study examined the process of purifying model biogas using a new type of absorbent based on a Deep Eutectic Solvent (DES) and a commercially available absorbent (Genosorb) to remove acetone, toluene, and cyclohexane. The main aim of the research was to control the purification efficiency using gas chromatography (GC) and an alternative method based on sensor matrices (SM). As a result of comparing the multidimensional SM signals...
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Morse homology for the Hamiltonian action in cotangent bundles
PublikacjaIn this paper we use the gradient flow equation introduced in Asselle and Starostka (Calc. Var. 59: 113, 2020) to construct a Morse complex for the Hamiltonian action AH on a mixed regularity space of loops in the cotangent bundle T ∗M of a closed manifold M. Connections between pairs of critical points are realized as genuine intersections between unstable and stable manifolds, which (despite being infinite dimensional objects)...