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Rok 2025
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TRWAŁOŚĆ BETONOWYCH POSADZEK PRZEMYSŁOWYCH W ASPEKCIE ICH ŚCIERALNOŚCI
PublikacjaCelem artykułu jest wskazanie najczęściej popełnianych błędów przyczyniających się do nadmiernej ścieralności betonowych posadzek przemysłowych, których górna powierzchnia została zabezpieczona suchą posypką aplikowaną na wilgotną nawierzchnię w początkowym okresie twardnienia młodego betonu. W artykule podano także propozycje sposobu usuwania opisanych wad, oraz dyskusję na temat współczesnych metod diagnostyki betonowych posadzek...
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Tunable terahertz metasurface based on a modified Jerusalem cross for thin dielectric film evaluation
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Tuning the Adhesive Strength of Functionalized Polyolefin-Based Hot Melt Adhesives: Unexpected Results Leading to New Opportunities
PublikacjaThe development of lightweight, often multi-component products requires adaptable and robust bondingsolutions. Hot melt adhesives increasingly attract industrial interestas they combine good adhesive strength, facile processability, andcost-efficiency. Recently, our group has reported on the remarkableadhesive performance of hydroxyl-functionalized propylene-basedcopolymers in bonding both polar and nonpolar surfaces. Theobtained...
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Tuning the Optical Properties of Electrospun Poly(methyl methacrylate) Nanofibres via Montmorillonite and Magnetite Ratios
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Turystyka Szkolna Bezpieczeństwo i Rozwój MEN Z DNIA 25 MAJA 2018
PublikacjaRozporządzenie Ministra Edukacji Narodowej z dnia 25 maja 2018 r w sprawie warunków i sposobu organizowania przez publiczne przedszkola szkoły i placówki krajoznawstwa i turystyki jest niezwykle istotnym aktem prawnym który reguluje zasady bezpiecznego i efektywnego planowania różnorodnych form wypoczynku wycieczek krajoznawczych oraz innych przedsięwzięć turystycznych realizowanych w ramach zadań statutowych tych jednostek...
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Two Approaches to Constructing Certified Dominating Sets in Social Networks
PublikacjaSocial networks are an important part of our community. In this context, certified dominating sets help to find in networks a group of people, referring as officials, such that 1) for each civilian, there is an official that can serve the civilian, and 2) no official is adjacent to exactly one civilian, to prevent potential abuses. To delve deeper into this topic, this study considers two approaches to the problem of finding certified...
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Ultra-Compact Quintuple-Band Terahertz Metamaterial Biosensor for Enhanced Blood Cancer Diagnostics
PublikacjaCancer and its diverse variations pose one of the most significant threats to human health and well-being. One of the most aggressive forms is blood cancer, originating from bone marrow cells and disrupting the production of normal blood cells. The incidence of blood cancer is steadily increasing, driven by both genetic and environmental factors. Therefore, early detection is crucial as it enhances treatment outcomes and improves...
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Understanding Parental Satisfaction in Caring for Children with Cerebral Palsy
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Unlocking the electrochemical performance of glassy carbon electrodes by surface engineered, sustainable chitosan membranes
PublikacjaChitosan coatings, derived from crustacean shell waste, possess inherent biocompatibility and biodegradability, rendering them suitable for various biomedical and environmental applications, including electrochemical biosensing. Its amine and hydroxyl functional groups offer abundant sites for chemical modifications to boost the charge transfer kinetics and provide excellent adhesion, enabling the construction of robust electrode-coating...
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Unraveling Effects of miRNAs Associated with APR Leaf Rust Resistance Genes in Hybrid Forms of Common Wheat (Triticum aestivum L.)
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UNRES web server: Extensions to nucleic acids, prediction of peptide aggregation, and new types of restrained calculations
PublikacjaThe third version of the UNRES web server is described, in which the range of biological macromolecules treated and calculation types has been extended significantly. DNA and RNA molecules have been added to enable the user to run simulations of their folding/hybridization and dynamics. To increase the accuracy of the simulated proteins models, the restraints on secondary structure have been enhanced to include the probabilities...
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Unveiling per- and polyfluoroalkyl substances contamination in e-cigarette refill liquids: A comprehensive analytical assessment
PublikacjaA robust analytical method was developed for the determination of per- and polyfluoroalkyl substances (PFAS) in e-cigarette refill liquids using solid-phase extraction (SPE) with weak anion-exchange sorbent, followed by detection with high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). The design of experiment approach was employed to optimize sample preparation, leading to the validation of the method...
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Upcycling of medium-density fiberboard and polyurethane foam wastes into novel composite materials
PublikacjaWhile plastic and e-waste dominate public discourse, municipal waste, particularly bulky wastes pose a significant challenge due to their large-scale generation aligning with the enrichment of society. Their efficient collection and keeping in a loop should be considered among the priorities of municipal waste management. Herein, the presented work presents novel composite materials obtained from flexible polyurethane foams used...
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User Well-Being as a Paramount Challenge in Contemporary Built Environment Design: The Architecture of Psychiatric Hospitals and Its Influence on Treatment Processes and the Health, Safety, and Comfort of Patients and Medical Staff—A Systematic Literature Review and Insights from the New European Bauhaus Initiative
PublikacjaThe natural environment, urban systems, and the buildings in which we live, study, work, or undergo treatment affect our mental health. The aim of this literature review was to verify the state of knowledge on the impact of the forms of psychiatric hospital buildings and the architectural solutions used inside these facilities on their comfort and safety of use, more effective forms of therapy, and the health of patients, as well...
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Utilizing Cement Kiln Dust as an Efficient Adsorbent for Heavy Metal Removal in Wastewater Treatment
PublikacjaCement kiln dust (CKD), a by-product of cement manufacturing, has been largely underutilized despite its potential as an eco-friendly adsorbent for wastewater treatment. This study addresses the knowledge gap regarding CKD’s effectiveness in removing heavy metals from wastewater residuals. A comprehensive experimental program was conducted to optimize key parameters such as the pH (6–9), contact time, sorbent dosage, and initial heavy...
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Utilizing UAV and orthophoto data with bathymetric LiDAR in google earth engine for coastal cliff degradation assessment
PublikacjaThis study introduces a novel methodology for estimating and analysing coastal cliff degradation, using machine learning and remote sensing data. Degradation refers to both natural abrasive processes and damage to coastal reinforcement structures caused by natural events. We utilized orthophotos and LiDAR data in green and near-infrared wavelengths to identify zones impacted by storms and extreme weather events that initiated mass...
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UV light-activated gas mixture sensing by ink-printed WS2 layer
PublikacjaWe fabricated a sensing layer from ink-printed WS2 flakes and utilized it for UV-activated gas sensing. The optical imaging of the structure made by repeated printing revealed the continuous layer comprising sub-µm flakes, confirmed independently by small-area AFM images (1×1 µm2). The activity of the sensing surface was investigated locally via AFM scanning of the surface with a polarized probing tip. The results indicated that...
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Valorization of waste plastics to a novel metal-organic framework derived cobalt/carbon nanocatalyst as peroxymonosulfate activator for antibiotics degradation
PublikacjaMetal-organic frameworks (MOFs), with excellent structural properties, exhibit unique advantages as promising catalysts in the degradation of emerging organic contaminants (EOCs) by PS-AOPs. Herein, Co-MOF-71 was prepared by hydrothermal method using terephthalic acid (TPA) obtained from the hydrolysis of waste PET plastics as an organic ligand, and the derived cobalt/carbon composite (PETC) was prepared by carbonizing Co-MOF-71...
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Vehicle Type Recognition Based on Audio Data
PublikacjaIdentifying different vehicle types can help manage traffic more efficiently, reduce congestion, and improve public safety. This study aims to create a classification model that can recognize vehicle types based on the sound of passing vehicles. To achieve this, a database of raw audio files containing 1763 samples from two sources was assembled. The time-domain signals were converted to a time-frequency representation using the...
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View Quality Assessments: A Pilot Study of Field Methods
PublikacjaThis paper describes findings from a workshop during which participants evaluated a series of windowviews. An explorative approach was applied to identify issues and testing methods useful in daylightresearch. The participants visited nine rooms with views of varied content, complexity, and viewingdistance under the overcast sky. Participants used surveys with quantitative and qualitative questions,hand drawings, illuminance measurements,...
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Vitamin B9 as a new eco-friendly corrosion inhibitor for copper in 3.5% NaCl solution
PublikacjaFolic acid salt (sodium folate) was studied as an eco-friendly and non-toxic copper corrosion inhibitor in 3.5% NaCl solution. Electrochemical impedance spectroscopy, polarization resistance and weight-loss measurements show that the inhibitor efficiency increases with concentration (the highest value- approx. 96% was reported for the solution containing 16 mM sodium folate after 24 h). EIS data and Tafel plots indicate that sodium...
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Voltage Control of a Stand-Alone Multiphase Doubly Fed Induction Generator
PublikacjaThis article presents a multiphase doubly fed induction generator (MDFIG) with a dedicated and unique control algorithm in a stand-alone wind energy conversion system. The algorithm has been developed and elaborated in the case of different emergency modes. Compared with the traditional double-fed induction generator, the MDFIG has increased reliability, reduced current level per phase, and low rotor harmonic currents. The control...
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Warunki kinematyczne obróbki powierzchni płaskich i walcowych na docierarkach tarczowych
PublikacjaPrzedstawiono kinematykę docierania elementów maszynowych na docierarkach tarczowych. Analizowano docieranie powierzchni płaskich, płasko-równoległych i walcowych. Analizowano wpływ położenia przedmiotu docieranego w separatorze na zmienność prędkości docierania. Przedstawiono wpływ prędkości obrotowej tarczy docierającej na wartość prędkości docierania oraz analizowano prędkość średnią w czasie cyklu ruchu w układzie wykonawczym...
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Waste tire rubber with low and high devulcanization level prepared in the planetary extruder
PublikacjaWaste tires management is serious and global environmental problem. Therefore, searching for new andindustrially applicable solutions to convert waste tire rubber into high-value added products is gaining more andmore attention. Rubber devulcanization is step forward for further developing rubber recycling and upcyclingtechnologies. Thermo-mechanical treatment of ground tire rubber (GTR) performed in twin screw extruders iscurrently...
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Wave dispersion relations in peridynamics: Influence of kernels and similarities to nonlocal elasticity theories
PublikacjaWe investigate the wave dispersion relations of an infinite elastic bar within the framework of linear bond-based peridynamics. This nonlocal integral-type model accounts for long-range interactions, which become significant at small scales and in cases of damage and fracture. Since a key element of this material model is the kernel function, we derive dispersion curves for several kernel choices. Notably, for non-singular kernels,...
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Wideband High Efficiency Slot Array Antenna Based on Gap Waveguide Single-Layer Feeding Network
PublikacjaA single-layer, full metal, wideband and high efficiency slot array antenna operating in V-band (50-75 GHz) is proposed using single corporate-feeding network based on gap waveguide (GW) technology. Compared with conventional multi layered slot array antenna, the proposed antenna utilizes only one waveguide feeding layer excites the radiation slots, therefore the assembly complexity of multi-layer waveguide and manufacturing cost...
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WSPÓŁCZESNE ZAGROŻENIA CYBERNETYCZNE METODY OSZUSTW I SKUTECZNE STRATEGIE OCHRONY
PublikacjaW dobie globalnej cyfryzacji i rosnącej roli technologii telekomunikacyjnych coraz więcej osób pada ofiarą oszustw związanych z fałszywymi połączeniami telefonicznymi, wiadomościami SMS oraz oszustwami internetowymi. Przestępcy posługują się zaawansowanymi metodami socjotechnicznymi, a wraz z rozwojem sztucznej inteligencji (AI) ich techniki stają się coraz bardziej wyrafinowane i trudniejsze do wykrycia. Niniejszy artykuł przedstawia...
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Wykonanie analizy zawartości i aktywności wody, pH ekstraktu wodnego oraz ocena zawartości błonnika rozpuszczalnego i nierozpuszczalnego.
PublikacjaWykonanie analizy zawartości i aktywności wody, pH ekstraktu wodnego oraz ocena zawartości błonnika rozpuszczalnego i nierozpuszczalnego.
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Zastosowanie fotogrametrii do tworzenia replik w obiektach zabytkowych
PublikacjaPodczas użytkowania zabytków nieruchomych, którymi bardzo często są obiekty sakralne, nierzadko zachodzi konieczność stworzenia, znajdującego się wewnątrz obiektu, kopii oryginalnego elementu, w tym również będącego zabytkiem ruchomym. Realizacja wiernej kopii użytkowej, niezależnie od przyczyn konieczności jej wykonania, wymaga zastosowania techniki umożliwiającej stworzenie samej repliki. Kluczowymi wymaganiami dla techniki tworzenia...
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ألفاظ القرآن الكريم بين المعنى المعجمي والقصدية الإلاهية
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الأنساق الثقافية في رواية الطرحان لعبد الله كروم مقاربة تحليلية
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الفعل الكلامي وما ينطوي عليه من أفعال في الخطاب الشعري. مقاربة تداولية في لامية أبي الطيب المتنبي في رثاء والدة سيف الدولة الحمداني
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بعض اضطرابات النوم بوصفها منبئات بإدمان الأنترنيت لدى تلاميذ الطور المتوسط
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دراسة مقارنة لمهارات التعلّم الموجّه ذاتيًا في ضوء استخدام شبكة الإنترنت لدى طلبة جامعة الجزائر 2
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قلق الانفصال وعلاقته بالإدمان على الألعاب الالكترونية لدى تلاميذ المرحلة الابتدائية
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واقع اللغة الإنجليزية عبر منصة (مودل) لدى طلبة الدراسات العليا؛ دراسة ميدانية على عينة من طلبة الدكتوراه ـ كلية العلوم الإنسانية والإجتماعية ـ جامعة محمد بوضياف المسيلة
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Rok 2024
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1st International Conference MRTBS 2024 Modern research trends in biomedical sciences: a holistic approach to health care BOOK OF ABSTRACTS SUPPLEMENT 3
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20 Jahre Bremer Kunststipendium
PublikacjaSeit 2004 vergeben die Bremische Bürgerschaft und die Bremer Heimstiftung gemeinsam ein Stipendium für bildende Künstler:innen aus den Partnerstädten Bremens. Das Bremer Kunststipendium wird von einer Jury maximal vier Mal jährlich für einen Zeitraum von jeweils drei Monaten vergeben. Das Stipendium beinhaltet freies Wohnen und Verpflegung in einer eigenständigen Atelier-Wohnung in der „Stiftungsresidenz Landhaus Horn“ der Bremer...
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3-D Printable Metal-Dielectric Metasurface for Risley Prism-Based Beam-Steering Antennas
PublikacjaA 3-D printable, planar, metal-dielectric metasurface-based, 2-D beam-steering system for aperture-type antennas is presented in this paper. This beam steering system, also known as the near-field meta-steering system, comprises two fully passive phase-gradient metasurfaces placed in the antenna’s nearfield region to steer the radiation beam. To address the non-uniform electric field phase of the aperture antenna, phase correction...
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3D Printed Bigel: A Novel Delivery System for Cannabidiol-Rich Hemp Extract
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3D-Breast System for Determining the Volume of Tissue Needed for Breast Reconstruction
Publikacja3D imaging systems can be used to effectively determine breast volumes for surgical applications. This article presents methods for surface reconstruction and volume determination based on the point cloud created by 3D imaging. Such a system would be used to accurately estimate breast volume in patients classified for breast reconstruction surgery at plastic surgery centers. To develop such a system, various methods of determining...
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8-week additional sensomotoric warm-up drills improves motor performance and postural stability in high-performance female Rugby-7 players
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9,10-Dioxoanthracenyldithiocarbamates effectively inhibit the proliferation of non-small cell lung cancer by targeting multiple protein tyrosine kinases
PublikacjaAnthraquinones have attracted considerable interest in the realm of cancer treatment owing to their potent anticancer properties. This study evaluates the potential of a series of new anthraquinone derivatives as anticancer agents for non-small-cell lung cancer (NSCLC). The compounds were subjected to a range of tests to assess their cytotoxic and apoptotic properties, ability to inhibit colony formation, pro-DNA damage functions,...
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A 0.5 V Nanowatt Biquadratic Low-Pass Filter with Tunable Quality Factor for Electronic Cochlea Applications
PublikacjaA novel implementation of an analogue low-power, second-order, low-pass filter with tunable quality factor (Q) is presented and discussed. The filter feature is a relatively simple, buffer-based, circuit network consisting of eleven transistors operating in a subthreshold region. Q tuning is accomplished by injecting direct current into a network node, which changes the output resistance of the transistors and, as a result, modifies...
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A business simulation method in educating architects
PublikacjaIn this article, the authors analyse the application of the business simulation method as a support tool in educating undergraduate architecture students. While running a fictional architectural practice, students learn about the role of an architect in the investment process and are introduced to economic aspects of running a small practice, including the importance of cash flow. They are also made aware about the importance of...
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A Case Study of Electric Vehicles Load Forecasting in Residential Sector Using Machine Learning Techniques
PublikacjaElectric vehicles (EVs) have been widely adopted to prevent global warming in recent years. The higher installation of Level-1 and Level-2 chargers in residential areas soon poses challenges to the distributed network. However, such challenges can be mitigated through the adoption of smart charging or controlled charging schemes. To facilitate the implementation of smart charging, accurate forecasting of EV charging demand in residential...
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A case study on the rotomolding behavior of black tea waste and bio-based high-density polyethylene composites: Do active compounds in the filler degrade during processing?
PublikacjaThis study verified the possibility of using waste material from the food industry (black tea) as functional filler of rotomolded biobased high-density polyethylene-based composites. As part of the experimental work, the influence of the materials preparation, i.e., dry blending versus twin-screw extrusion, on the effectiveness of the stabilizing antioxidant effect of the black tea was analyzed. The aim of the work was to verify...
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A Closed Bipolar Electrochemical Cell for the Interrogation of BDD Single Particles: Electrochemical Advanced Oxidation
PublikacjaA closed bipolar electrochemical cell containing two conductive boron-doped diamond (BDD) particles of size 250 – 350 m, produced by high-pressure high-temperature (HPHT) synthesis, has been used to demonstrate the applicability of single BDD particles for electrochemical oxidative degradation of the dye, methylene blue (MB). The cell is fabricated using stereolithography 3D printing and the BDD particles are located at either...
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A closer look at how the dispersive liquid–liquid microextraction method works. Investigation of the effect of solvent mixture composition on the quality and stability of the cloudy state
PublikacjaThe dispersive liquid–liquid microextraction (DLLME) is one of the most popular miniaturized extraction procedures. In this paper, the degree of dispersion and dispersion stability were studied with the aim to assess the correlations of these parameters with efficiency for the selected analytical application. The dependence between the degree of dispersion (cloudy state quality) and its stability obtained by various emulsification...
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A CMOS-integrated terahertz near-field sensor based on an ultra-strongly coupled meta-atom
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