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Search results for: MESOCOSM STUDY
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Large-scale Rowe cell experimental study on coefficient of consolidation of coal mine tailings
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Regional Context of Small and Medium-Sized Enterprises’ Development: Case Study of Southern Poland
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Structure–bioavailability relationship study of genistein derivatives with antiproliferative activity on human cancer cell
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Two novel nucleoside ester derivatives of chlorambucil as potential antileukemic prodrugs: a preliminary study
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Organizational culture and coopetition: An exploratory study of the features, models and role in the Polish Aviation Industry
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Experimental study on the behaviour of steel columns under seismic-induced axial impact load
PublicationIt has been observed during major earthquakes that the so called soft-storey failure of an upper floor of a structure results in large impact load acting on structural members of the lower storeys. It may further lead to progressive collapse of the whole structure substantially intensifying human and material losses. Therefore, the aim of this paper is to investigate experimentally the behaviour of columns under bending (observed...
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Numerical modeling of cross-flow heat exchanger for air-conditioning purposes in preliminary study.
PublicationPraca przedstawia wyniki obliczeń numerycznych krzyżowego płytowo-rurowego wymiennika ciepła przeznaczonego do celów klimatyzacyjnych w początkowym etapie jego projektowania.
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Plasma micronutrients, trace elements, and breast cancer in BRCA1 mutation carriers: an exploratory study
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cGMP level in idiopathic Parkinson’s disease patients with and without cardiovascular disease – A pilot study
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Fluorescence Lifetimes Study of α-Tocopherol and Biological Prenylquinols in Organic Solvents and Model Membranes
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Mesh-based internet on the Baltic sea for improving e-navigation services. A case study
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The role of colour preattentive processing in human–computer interaction task efficiency: A preliminary study
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Information presentation compatibility in a simple digital control panel design: eye-tracking study
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Reconstruction of Ancient Lake after Peat Excavation—A Case Study about Water Quality
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MicroRNA profiling in a case-control study of African American women with uterine serous carcinoma
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Proof-of-concept study on improved efficacy of rHuEPO administered as a long-term infusion in rats
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High Signal Resolution Pulse Oximetry as a Prognostic Indicator of Radiotherapy Toxicity: A Pilot Study
PublicationIntroduction: Radiotherapy plays a prominent role in the multidisciplinary treatment of cancers. Despite new irradiation techniques, radiation-induced cardiotoxicity remains a leading cause of morbidity and mortality. Therefore, prognostic indicators of radiotherapy toxicity are essential. This study aimed to investigate the influence of applied radiotherapy on the pulse wave recording and thereby on...
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A potency of plasminogen activation system in long-term prognosis of endometrial cancer: a pilot study
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ENHANCING SOCIAL CAPITAL DEVELOPMENT THROUGHOUT CULTURAL EVENTS. A CASE STUDY OF EASTERN POLAND
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Phraseological Units in Audiovisual Translation. A Case Study of Polish Dubbing of Disney’s 'The Little Mermaid'
PublicationThe paper aims to discuss phraseological units as the object of audiovisual translation in the Polish dubbing of Disney’s 'The Little Mermaid', to discuss the role of phraseological translation techniques, and to present possible translation inconsistencies. A theoretical introduction presents definitions for crucial terms. It is followed by the analysis of the corpus of phraseological units in Disney’s The Little Mermaid and...
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Robots for Elderly Care: Review, Multi-Criteria Optimization Model and Qualitative Case Study
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Are firefighters able to perform blind endotracheal intubation via LMA Fastrach? An experimental study
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Common Data and Technological Partnership - The Foundation for the Development of Smart Cities - Poznań Case Study
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Langmuir monolayer study of phospholipid DPPC on the titanium dioxide–chitosan–hyaluronic acid subphases
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Edible films made from blends of gelatin and polysaccharide-based emulsifiers - A comparative study
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Grow first, gain fat in the meantime. Longitudinal study of anthropometric changes around menarche
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Comparative study on homogeneity, filling ratio and purity of iron filled multiwalled carbon nanostructures
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Study on size effect of the silica nanospheres with solid core and mesoporous shell on cellular uptake
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Systematic study on synthesis and purification of double-walled carbon nanotubes synthesized via CVD
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Shaking table experimental study on damage mechanism of the disconnecting switch under seismic excitation
PublicationThe efficiency of the energetic network is a very import safety issue in the region experienced by the earthquake. High voltage disconnecting switches are important elements of the energetic infrastructure used to separate electric circuits (i.e. during repairs), which should not be damaged remaining fully operational. The aim of the paper is to show the results of the shaking table experimental investigation focused on damage...
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Enhancing the Seismic Resistance of Columns by GFRP Confinement Using Flexible Adhesive-Experimental Study
PublicationIn this paper, the results of two experiments, focused on testing the effectiveness of a method of enhancing the seismic (dynamic) resistance of masonry columns with the use of flexible polymer adhesive, are shown. The first experiment was devoted to investigate the damping properties of a polymer working between two stiff layers, whereas the aim of the second one was to verify if the identified damping properties of the polymer...
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The potential of imogolite nanotubes as (co-)photocatalysts: a linear-scaling density functional theory study
PublicationWe report a linear-scaling density functional theory (DFT) study of the structure, wall-polarization absolute band-alignment and optical absorption of several, recently synthesized, open-ended imogolite (Imo) nanotubes (NTs), namely single-walled (SW) aluminosilicate (AlSi), SW aluminogermanate (AlGe), SW methylated aluminosilicate (AlSi-Me), and double-walled (DW) AlGe NTs. Simulations with three different semi-local and dispersion-corrected...
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Longitudinal study of vitamins A, E and lipid oxidative damage in human milk throughout lactation
PublicationCelem pracy było zbadanie zmian wartości całkowitego potencjału antyoksydacyjnego (TAS), stężeń witamin antyoksydacyjnych i izoprostanów (markery stresu oksydacyjnego) w siarze i mleku dojrzałym. Badaniami objęto 49 kobiet po pełno terminowej ciąży i naturalnym porodzie. Kryteria wyłączenia to czynne i bierne palenie tytoniu, ostre i przewlekłe schorzeniach oraz farmakoterapia inna niż suplementacja witamin. Próbki siary pobierano...
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Experimental and numerical study on deformed steel columns subjected to impact load during earthquakes
PublicationThe soft-storey failure is one of the most typical types of damage observed in buildings during earthquakes. The failure of an upper soft storey of a structure results in large impact load acting on the lower floors and if the resistance of the structural members of the lower storeys is not sufficient it may further lead to progressive collapse of the whole building. The aim of the present paper is to investigate the dynamic behaviour...
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Electrochemical study of lithium insertion into carbon-rich polymer-derived silicon carbonitride ceramics
PublicationW pracy przedstawiono materiał ceramiczny, bogaty w węgiel krzemo azotek węgla (SiCN), otrzymany na drodze pirolizy w zakresie temperatur od 1100 do 1700°C. Badania elektrochemiczne insercji litu wykazały, że materiał elektrodowy na bazie SiCN może być obiecujący jako anoda w bateriach litowych. Próbka otrzymana w 1300°C cechuje się pojemnością 392 mAh/g i jest stabilna aktywna elektrochemicznie w trakcie interkalacji i deinterkalacji...
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Application of Hydrodynamics Model for a Case Study of the Kolbudy II Reservoir Embankment Hypothetical Failure
PublicationW pracy przedstawiono hydrodynamiczny model przepływu powodziowego. Jako przykład symulacji powodzi zaprezentowano hipotetyczną awarię bocznej zapory zbiornika Kolbudy II przy Elektrowni Wodnej Bielkowo. Celem symulacji było późniejsze wyznaczenie zasięgu strefy zagrożenia powodziowego wywołanego potencjalną awarią obwałowania zbiornika.
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Nano-structured Pt embedded in acidic salts of heteropolymolybdate matrices: MS EXAFS study
PublicationA structural study of Pt nano-catalysts is presented in the paper. The innovation in the case of the considered catalytic materials resides in the use a meso-microporous inorganic matrix of heteropolyacid salt of composition X2.5H0.5YMo12O40 where X = Rb, Cs and Y = P, Si as a catalyst support. Metallic nanoparticles were created by platinum ions reduction in a hot H2/Argon stream and were mainly located into matrix pores. As the...
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User -friendly E-learning Platform: a Case Study of a Design Thinking Approach Use
PublicationE-learning systems are very popular means to support the teaching process today. These systems are mainly used by universities as well as by commercial training centres. We analysed several popular e-learning platforms used in Polish universities and find them very unfriendly for the users. For this reason, the authors began the work on the creation of a new system that would be not only useful, but also usable for students, teachers...
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Behaviour of deformed steel columns exposed to impact load during earthquakes - experimental study
PublicationIt has been observed during major earthquakes that the so called soft-storey failure of an upper floor of a structure results in large impact load acting on structural members of the lower storeys. It may further lead to progressive collapse of the whole structure substantially intensifying human and material losses. The aim of this paper is to investigate experimentally the behaviour of horizontally deformed columns (deformation...
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Comparative study with magnetic techniques of P91 and 13HMF steels properties subjected to fatigue tests
PublicationWykonano badania porównawcze technikami magnetycznymi właściwości stali P91 i 13HMF poddanych testowi zmęczenia
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The study of structure and surface morphology of lithium titanate sol-gel derived thin films
PublicationIn this paper the structure and the surface morphology of lithium titanate (LTO) thin films are presented. Nanocrystalline thin films were prepared by sol–gel method. To examine the influence of the annealing time on as-prepared films crystallization, the coatings were heated at different temperatures in the range of 500 °C–600 °C for 10, 20, 40 and 80 h. The structure of the obtained material was investigated using the X-ray diffraction...
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Experimental and numerical study on polymer element used for reduction of temporary steel grandstand vibrations
PublicationThe purpose of the paper is to analyse the effectiveness of a polymer damper in reduction of a temporary steel grandstand vibrations through the experimental and numerical study. The damper considered in the investigation is constructed out of two L-shape steel members bonded with polymer mass of high damping properties. The element has been installed as a diagonal one at the back part of the structure. The method has been compared...
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Impact of the inclination angle of the condenser with refrigerant R410A on heat transfer coefficient – experimental study
PublicationIn the paper the authors present results of a laboratory test of the condenser with refrigerant R410A. The effect of the inclination of this condenser on the heat transfer coefficient value has been considered. The test has proved that there is an optimal inclination angle of the condenser which gives maximal value of this coefficient.
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Sources and fate of microplastics in marine and beach sediments of the Southern Baltic Sea—a preliminary study
PublicationMicroplastics’ sources and fate in marine bottom and beach sediments of strongly polluted Baltic Sea have been investigated.Microplastics were extracted using sodium chloride. Their qualitative identification was conducted using micro-Fourier-transform infrared spectroscopy (μFT-IR).
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Client co-production in knowledge-intensive business services (KIBS): Case study analysis
PublicationPurpose: This paper aims to explore the topic of client co-production in knowledge-intensive business services (KIBS). The paper first sketches a theoretical background and reviews previous studies on factors affecting successful client co-production in such companies and then examines these factors via case study research among a small KIBS company and its five customers. Methodology: The paper is based on an in-depth analysis...
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Role of MnO in manganese–borate binary glass systems: a study on structure and thermal properties
PublicationStructural and thermal properties of x MnO−(100−x)B2O3 (where x=40, 50 and 60 mol%) glass samples have been investigated with the employment of various techniques. Fourier transform infrared spectroscopy results revealed the influence of MnO on glass matrix. Decrease of B–O bond-related band intensities has been observed. MnO addition was found to introduce broken [BO2O−]n chains. Differential scanning calorimetry (DSC) measurements...
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Maintenance Interval Adjustment Based on the Experience, Case Study of Marine Air Compressor System
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Collagen type II–hyaluronan interactions – the effect of proline hydroxylation: a molecular dynamics study
PublicationHyaluronan–collagen composites have been employed in numerous biomedical applications. Understanding the interactions between hyaluronan and collagen is particularly important in the context of joint cartilage function and the treatment of joint diseases. Many factors affect the affinity of collagen for hyaluronan. One of the important factors is the ratio of 3- or 4-hydroxy proline to proline residues. This article presents...
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Chromane helicity rule – scope and challenges based on an ECD study of various trolox derivatives
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The experimental study of compaction parameters and elastic after-effect of fine fraction raw materials
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