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Search results for: MATER-BI
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Detection of Water on Road Surface with Acoustic Vector Sensor
PublicationThis paper presents a new approach to detecting the presence of water on a road surface, employing an acoustic vector sensor. The proposed method is based on sound intensity analysis in the frequency domain. Acoustic events, representing road vehicles, are detected in the sound intensity signals. The direction of the incoming sound is calculated for the individual spectral components of the intensity signal, and the components...
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Peroxymonosulfate-assisted photocatalytic degradation of artificial sweeteners in water
PublicationIn the present study, peroxymonosulfate (PMS) activation was proposed for efficient photocatalytic degradation of aspartame, acesulfame, saccharin, and cyclamate - artificial sweeteners frequently present in wastewaters and surface waters worldwide. The TiO2 nanosheets with exposed {0 0 1} facets were synthesised using the fluorine-free lyophilisation technique as a green concept for the synthesis and used for the photodegradation...
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Elastic scattering of electrons by water: An ab initio study
PublicationIn this work we devise a theoretical and computational method to compute the elastic scattering of electrons from a non-spherical potential, such as in the case of molecules and molecular aggregates. Its main feature is represented by the ability of calculating accurate wave functions for continuum states of polycentric systems via the solution of the Lippmann-Schwinger equation, including both the correlation effects and multi-scattering...
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Network effects—do they matter for digital technologies diffusion?
PublicationPurpose The main research target of this paper is to capture the network effects using the case of mobile cellular telephony, identified in European telecommunication markets, and its determinants enhancing the process of digital technologies diffusion. Design/methodology/approach This research relies on panel and dynamic panel regression analysis. The empirical sample covers 30 European countries, and the period for the analysis...
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Review of the determination of modern used pesticides in water samples
PublicationThe increasingly widespread application of pesticides causes that larger amounts of them are entering the environment. Their presence in sources of drinking water, essential to life, is a particular danger. For these reasons it is important to monitor and analyse pesticide residues in the environment. The analysis of environmental samples for the presence of pesticides is very difficult. Firstly, the processes involved in sample...
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Water sorption and blistering of GFRP laminates with varying structures
PublicationThe microstructures, water absorption as well as blistering was studied for bi- and tri- axial glass fibre vinyl ester and polyester -matrix laminates coated with gel coat layer and uncoated. The effect of manufacturing technique on water sorption characteristics was considered. It was found that water sorption characteristics of GFRP depend on manufacturing methods. The least water intake was found for specimens having perfect...
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Multiprocessor implementation of Parallel Multiobjective Genetic Algorithm for Optimized Allocation of Chlorination Stations in Drinking Water Distribution System - a new water quality model approach
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Multiprocessor Implementation of Parallel Multiobjective Genetic Algorithm for Optimized Allocation of Chlorination Stations in Drinking Water Distribution System a New Water Quality Model Approach
PublicationThe Critical Infrastructure Systems (CISs) have received in recent years a considerable attention due to their heavy impact on sustainable development of modern societies. Most CISs may be classied as large scale complex systems of network structure, in uenced by strong interactions form the surrounding environment, internal and external interconnections. The later is a result of inter-CIS dependencies. The control, monitoring...
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Wpływ warunków hydraulicznych w sieci wodociągowej na wtórne zanieczyszczenie wody = Effect of hydraulic conditions in the water distribution system on the secondary water pollution
PublicationCelem badań jest próba empirycznego wykazania wpływu zmian prędkości i czasu przebywania wody w przewymiarowanej sieci wodociągowej na wtórne jej zanieczyszczenie. Podstawą analizy są pomiary hydrauliczne wykonane podczas realizacji płukania rurociągów żeliwnych D=100 mm oraz badania laboratoryjne popłuczyn w zakresie suchej pozostałości, w tym zawartości związków żelaza. Każdą pobraną próbkę popłuczyn z hydrantów poddano szczegółowej...
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A small-signal sound speed and parameter of non-linearity B/Ain a ternary mixture. Examples of calculations of mixture consisting of air, water and water vapor
PublicationZostało wyliczone zaburzenie entropii z dokładnością do członów nieliniowych rzędu drugiego. Jedyne założenie ograniczające, toże para wodna i powietrze są gazami doskonałymi. Ostatecznie,parametr nieliniowości i prędkość fali akustycznej przedstawione jako rodzinę krzywych, zależnych od trzech parametrów. Przedstawiono ilustrację tych zależności.
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Drainage and capillary rise components in water balance of alluvial soils
PublicationPrzepływ wody przez dolny brzeg profilu glebowego stanowi ważny element wielu modeli pracy drenażu. Przeciekanie wody w głąb albo podsiąk kapilarny ku górze mierzone były metodą lizymetryczną w warunkach polowych podczas 4 lat (1972-1975). Podsiąk kapilarny wynosił 40-50% ogólnego zasilania w wodę w glebach typu Histosols, natomiast prawie zero w glebach typu Inceptisols. Pomierzone wartości pozwalaja na ocenę wymiany wody pomiedzy...
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UV/VIS light-enhanced photocatalysis for water treatment and protection
PublicationPraca zawiera wyniki badań nad zaawansowanymi metodami fotokatalitycznymi w aspekcie degradacji zanieczyszczeń w fazie ciekłej. Fenol i chlorowane pestycydy zostały zastosowane jako związki modelowe. Równocześnie prowadzono badania dotyczące ścieków pestycydowych. Rozważane układy: UV/TiO2 w zawiesinie lub osadzony na szklanych mikrosferach oraz UV/H2O2/powietrze. Poprzez modyfikację tlenku tytanu(IV) pierwiastkami niemetalicznymi...
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Entrepreneurship without Borders: Do Borders Matter for International Entrepreneurship?
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The Application of Electrolysis Method to Disinfect Water Contaminated by Salmonella and Shigella
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Portable reactor with LTCC electrodes for production of plasma activated water
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Methods of estimating the elements of water balance in a forested catchment basin
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Determination of metronidazole residues in water, sediment and fish tissue samples
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Structure and function of natural proteins for water transport: general discussion
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Robust Estimation of Integrated Hydraulics and Parameters in Water Distribution Systems
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Heat calculations for water-cooled radiators of the inverter for induction heating
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Cylindrospermopsin: Water-linked potential threat to human health in Europe
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JOB SATISFACTION OF IT PROFESSIONALS IN POLAND: DOES BUSINESS COMPETENCE MATTER?
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Health-Promoting Places: Rain Gardens and Sustainable Water Management
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Dynamics of Topology-dependent Water Purification by Siliceous Zeolite Membranes
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HYPONATREMIA & WATER INTOXICATION WITH CARBAMAZEPINE: A RARE CASE REPORT.
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Analysis of water erosion processes using terrestrial laser scanning
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Ranking metrics in gene set enrichment analysis: do they matter?
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Ozone and Photocatalytic Processes for Pathogens Removal from Water: A Review
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Effect of Newly Created Water Reservoirs on Agricultural Landscape Stability
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Impact of water reservoirs in Nienawiszcz on improve of the visual values of landscape
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Accuracy and parameter estimation of elastic and viscoelastic models of water hammer
PublicationW artykule analizowany jest zagadnienie uderzenia hydraulicznego, stanowiące jeden z najważniejszych problemów nieustalonego przepływu w przewodach pod ciśnieniem. Mimo ponad stuletnich doświadczeń w badaniach zagadnienie to jest ciągle nie w pełni rozpoznane. Może być onio rozpatrywane na dwóch płaszczyznach - praktycznej i teoretycznej. W obu przypadkach na etapie rozwiązania powstają problemy sprawiające, że wyniki nie są satysfakcjonujące....
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Leakage detection and localisation in drinking water distributionnetworks by MultiRegional PCA
PublicationMonitoring is one of the most important steps in advanced control of complex dynamic systems. Precise information about systems behaviour, including faults indicating, enables for efficient control. The paper describes an approach to detection and localisation of pipe leakage in Drinking Water Distribution Systems (DWDS) representing complex and distributed dynamic system of large scale. Proposed MultiRegional Principal Component...
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Verification of the criteria for evaluation of water and frost resistance of asphalt concrete
PublicationThe paper presents the results of field investigation - condition survey of existing pavements and the results of laboratory tests on water and frost resistance of samples cored from the these pavements. The purpose of testing was to verify the criteria for evaluation of the resistance of asphalt concrete to the action of water and frost by way of comparing the results of field and laboratory tests, followed by evaluation of their...
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Assessment of the Water Needs of Fruit Plants in the Perspective of Climate Change
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Nickel in soil and water: Sources, biogeochemistry, and remediation using biochar
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The Impact of Dredging Deep Pits on Organic Matter Decomposition in Sediments
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Fog water chemical composition in different geographic regions of Poland
PublicationPróbki wody z mgły pobierane były w latach 2005-2006 na terenie Szrenicy, Zakopanego i Borucina. Analiza statystyczna ujawniła znaczące różnice w składzie chemicznym próbek wody z mgły w zależności od regionu geograficznego, wysokości pobierania próbek, ale także od momentu pobierania próbki. Stwierdzono również różnice składu chemicznego pomiędzy mgłą radiacyjna a orograficzną.
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Development of urban water and sewerage systems in Gdansk ). Historical background.
PublicationGospodarka wodno - ściekowa Gdańska. Rozwój historyczny, konsekwencje, ciągłość i kompleksowość działań. Wpływ aglomeracji na środowisko Zatoki Gdańskiej i Bałtyku.
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HYPONATREMIA & WATER INTOXICATION WITH CARBAMAZEPINE: A RARE CASE REPORT.
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PF5 and PCl5 interacting with water – Comparative study at the molecular level
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Polymers (Polyvinylpyrrolidones) As Active Additives Modifying the Lubricating Properties of Water
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TiO2-Nitrogen Modified for Water Decolourisation under VIS Radiation
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Efektywność studiów Master of Business Administration (MBA) w Polsce
PublicationW artykule oszacowano efektywność 28 programów studiów MBA w Polsce za pomocą „alokacyjnego” modelu New Cost (Tone 2002) należącego do nieparametrycznej metody DEA. Za nakłady przyjęto liczbę godzin programu MBA oraz jego koszt, zaś za wynik ogólny wskaźnik rankingowy studiów MBA w 2018 roku opracowany przez Perspektywy. Uzyskane wyniki świadczą o przeciętnej efektywności studiów MBA wynoszącej 68%, tylko sześć programów było...
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Vibrational Spectroscopy in Analysis of Stimuli-Responsive Polymer–Water Systems
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Detection of butter adulteration with water using differential scanning calorimetry
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<title>Fiber optic probe for monitoring of drinking water</title>
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Assessment of water quality based on multiparameter fiber optic probe
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THE 3D MODEL OF WATER SUPPLY NETWORK WITH APPLICATION OF THE ELEVATION DATA
Publication3D visualization is a key element of research and analysis and as the source used by experts in various fields e.g.: experts from water and sewage systems. The aim of this study was to visualize in three-dimensional space model of water supply network with relief. The path of technological development of GESUT data (Geodezyjna Ewidencja Sieci Uzbrojenia Terenu – geodetic records of public utilities) for water supply and measurement...
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Unusual Influence of Fluorinated Anions on the Stretching Vibrations of Liquid Water
PublicationInfrared (IR) spectroscopy is a commonly used and invaluable tool in the studies of solvation phenomena in aqueous solutions. Concurrently, ab initio molecular dynamics (AIMD) simulations deliver the solvation shell picture at a molecular detail level and allow for a consistent decomposition of the theoretical IR spectrum into underlying spatial correlations. Here, we demonstrate how the novel spectral decomposition techniques...
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The condition of economies. Do most valuable global brands matter?
PublicationResearch background: Brands are considered to be the most valuable asset of a company. Some of them achieve spectacular global results. The significance of global brands is proved by the fact that their value is often greater than the sum of all company’s net assets. Purpose of the article: The aim of this article is to highlight that brand value does not only create company’s value, but also leverages economies. The Authors claim...