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Search results for: PARTIAL NITRIFICATION
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Overheating of underground power cable line due to its partial exposition to solar radiation
PublicationCurrent-carrying capacity of underground power cable lines depends, among others, on thermal resistivity of the soil and cables layout: trefoil formation, flat formation with or without spacing. If conditions for heat transfer in the ground are favorable, the current-carrying capacity is relatively high. Therefore, it generates risk of the power cables overheating, if part of the cable line is located vertically in the air, to...
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Convex set of quantum states with positive partial transpose analysed by hit and run algorithm
PublicationThe convex set of quantum states of a composite K×K system with positive partial transpose is analysed. A version of the hit and run algorithm is used to generate a sequence of random points covering this set uniformly and an estimation for the convergence speed of the algorithm is derived. For K >3 or K=3 this algorithm works faster than sampling over the entire set of states and verifying whether the partial transpose is positive....
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Weighted difference schemes for systems of quasilinear first order partial functional differential equations
PublicationThe paper deals with initial boundary value problems of the Dirichlet type for system of quasilinear functional differential equations. We investigate weighted difference methods for these problems. A complete convergence analysis of the considered difference methods is given. Nonlinear estimates of the Perron type with respect to functional variables for given functions are assumed. The proof of the stability of difference problems...
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Charakterystyki pojemnościowo-zasięgowo sieci komórkowej LTE wykorzystującej metodę Partial Frequency Reuse
PublicationW referacie przedstawiono wyniki badań charakterystyk pojemnościow-zasięgowych sieci komórkowej LTE, w której zastosowano metodę ponownego wykorzystania pasma PFR. Wyniki badań umożliwiają ocenę efektywności wykorzystania zasobów fizycznych, w zależności od metody podziału obszaru komórki na podobszary o różnym sposobie przydziału tych zasobów. Mogą być one użyteczne do oceny efektywności metody PFR oraz do projektowania i optymalizacji...
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Explicit and implicit difefrence methods for quasilinear first order partial functional differential equations.
PublicationInitial boundary value problems of the Dirichlet type for quasilinear functional differential equations are considered. Explicit difference schemes of the Euler type and implicit difference methods are investigated. Suffcient conditions for the convergence of approximate solutions are given and comparisons of the methods are presented. It is proved that assumptions on the regularity of given functions are the same for both classes...
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Normalized Partial Scattering Cross Section for Performance Evaluation of Low-Observability Scattering Structures
PublicationThe development of diffusion metasurfaces created new opportunities to elevate the stealthiness of combat aircraft. Despite the potential significance of metasurfaces, their rigorous design methodologies are still lacking, especially in the context of meticulous control over the scattering of electromagnetic (EM) waves through geometry parameter tuning. Another practical issue is insufficiency of the existing performance metrics,...
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Runge-Kutta bicharacteristic methods for first order partial functional di- fferential equations
PublicationW pracy prezentujemy nową klasę metod numerycznych dla równań różniczkowo-funkcyjnych. Są to metody bicharakterystyk Rungego-Kutty. Ponadto porównuje-my wprowadzone metody z metodami klasycznymi.
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Approximate solutions of mixed problems for first order partial differential equations with deviated variables.
PublicationPraca traktuje o przybliżaniu rozwiązań klasycznych równańróżniczkowo-funkcyjnych cząstkowych pierwszego rzędu rozwiązaniamiukładów quasiliniowych równań różnicowych. Nowe podejście dorozwiązywania równań nieliniowych zawdzięczamy metodziequasilinearyzacji dla zagadnień początkowo - brzegowych z odchylonymargumentem. Dla przyrostów pochodnych funkcji danej zakładamy nieliniowe oszacowanie typu Perrona. Załączone są wyniki eksperymentów...
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Temperature Impact of Nitrogen Transformation in Technological System: Vertical Flow Constructed Wetland and Polishing Pond
PublicationThe article describes the results of the research, purpose of which was to evaluate influence of the temperature on the effectiveness of nitrification and denitrification in the sewage treatment system consisting of vertical flow constructed wetland and polishing pond. During the analysed period, the efficiency of removing total nitrogen was low and amounted to 12.7%. In the polishing pond in the summer period, content of total...
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CALCULUS OF VARIATIONS AND PARTIAL DIFFERENTIAL EQUATIONS
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Mutual Interaction between Temperature and DO Set Point on AOB and NOB Activity during Shortcut Nitrification in a Sequencing Batch Reactor in Terms of Energy Consumption Optimization
PublicationRecently, many wastewater treatment plants (WWTPs) have had to deal with serious problems related to the restrictive requirements regarding the euent quality, as well as significant energy consumption associated with it. In this situation, mainstream deammonification and/or shortened nitrification-denitrification via nitrite (so-called “nitrite shunt”) is a new promising strategy. This study shows the mechanisms and operating conditions...
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Visions for the future of particle accelerators
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Political Parties in the Digital World
PublicationThe aim of this report is to outline how digital technologies and digital media are redefining the way political parties fulfill their role as collective platforms for political participation of citizens, e.g. in relation to the parties’ decision-making processes, communication strategies, funding mechanisms, membership, information sharing, etc. and to highlight the existing international standards and good practices in this area....
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A benchmark for particle shape dependence
PublicationParticle shape is a major parameter for the space-filling and strength properties of granular materials. For a systematic investigation of shape effect, a numerical benchmark test was set up within a collaborative group using different numerical methods and particles of various shape characteristics such as elongation, angularity and nonconvexity. Extensive 2D shear simulations were performed in this framework and the shear strength...
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Spatial planning on regional level
PublicationPolish spatial planning results from typical for countries of Central and Eastern Europe transition . They have undergone the transformation from decentralized management system based on the dominance of state to the system of representative democracy, based on self-government administration; also territorial on regional level.
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Cultural Heritage in Spatial Planning
PublicationThe cultural heritage objects of each country should have a major impact on the development of space. Unfortunately, most often the investment needs prevail and only the most precious historical objects are protected. Thus often a monument is preserved, but its surroundings (which put it in context) are lost forever. This article addressed the issues of cultural heritage in relation to the spatial planning system in Poland. The...
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Denitrification Process Enhancement and Diversity of the Denitrifying Community in the Full Scale Activated Sludge System after Adaptation to Fusel Oil
PublicationImplementation of anaerobic digestion of primary sludge in modern wastewater treatment plants (WWTPs) limits the availability of organic carbon for denitrification in conventional nitrification-denitrification (N/DN) systems. In order to ensure efficient denitrification, dosage of the external carbon source is commonly undertaken. However, application of commercial products, such us ethanol or acetate, greatly increases operational...
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Portal ontologii: Portal do kooperacyjnej pracy nad ontologiami dziedzinowymi
PublicationPrzedstawiono metodę reprezentacji wiedzy użytą do składowania ontologii w relacyjnej bazie danych. Opracowany na jej podstawie system umozliwia kooperacyjną pracę nad ontologiami dziedzinowymi w środowisku rozproszonym. Uzyte struktury danych pozwalają na zamianę reprezentacji wiedzy w zalżności od potrzeb przetwarzania danych oraz śledzenie dynamiki procesu uzgadniania wspólnej warstwy konceptualnej między specjalistami. Zawarto...
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Computational Particle Mechanics
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Spatial Information Research
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Journal of Spatial Science
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LASER AND PARTICLE BEAMS
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Particle and Fibre Toxicology
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NETWORKS & SPATIAL ECONOMICS
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Spatial Cognition and Computation
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Hypertension and atrial fibrillation
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Udany portal intranetowy
PublicationArtykuł prezentuje najważniejsze czynniki wpływające na efekt wdrożenia portali intranetowych w przedsiębiorstwach. Przedstawiono wpływ najważniejszych czynników organizacyjnych, użytkowych i społecznych na sposób realizacji przedsięwzięć portalowych, w tym szczególną rolę współpracy z docelowymi użytkownikami planowanego systemu.
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Development of Strategies for AOB and NOB Competition Supported by Mathematical Modeling in Terms of Successful Deammonification Implementation for Energy-Efficient WWTPs
PublicationNovel technologies such as partial nitritation (PN) and partial denitritation (PDN) could be combined with the anammox-based process in order to alleviate energy input. The former combination, also noted as deammonification, has been intensively studied in a frame of lab and full-scale wastewater treatment in order to optimize operational costs and process efficiency. For the deammonification process, key functional microbes include...
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Elgold partial: Automotive blogs
Open Research DataThe dataset contains 34 English texts scrapped from automotive blogs. In each text, the named entities are marked. Each name entity is linked to the corresponding Wikipedia if possible. All entities were manually verified by at least three people, which makes the dataset a high-quality gold standard for the evaluation of named entity recognition and...
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Elgold partial: Movie reviews
Open Research DataThe dataset contains 37 English texts with movie reviews. In each text, the named entities are marked. Each name entity is linked to the corresponding Wikipedia if possible. All entities were manually verified by at least three people, which makes the dataset a high-quality gold standard for the evaluation of named entity recognition and linking algorithms.
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Elgold partial: Job offers
Open Research DataThe dataset contains 34 English texts scrapped from the web portals offering job offers. In each text, the named entities are marked. Each name entity is linked to the corresponding Wikipedia if possible. All entities were manually verified by at least three people, which makes the dataset a high-quality gold standard for the evaluation of named entity...
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Elgold partial: History blogs
Open Research DataThe dataset contains 13 texts from English history blogs. In each text, the named entities are marked. Each name entity is linked to the corresponding Wikipedia if possible. All entities were manually verified by at least three people, which makes the dataset a high-quality gold standard for the evaluation of named entity recognition and linking algorithms.
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Generalized solution of mixed problems for first order partial differential equations with state dependent delays
PublicationW pracy zostało udowodnione twierdzenie o istnieniu i jednoznaczności rozwiązań dla zagadnień początkowo-brzegowych z cząstkowym równaniem różniczkowo-funkcyjnym z opóźnionym argumentem zależnym od funkcji niewiadomej. Użyto metody bicharakterystyk. Jednoznaczność rozwiązań wykazano metodą porównawczą, istnienie - metodą ciągów przybliżeń.
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Caratheodory solutions to quasi-linear hyperbolic systems of partial differential equations with state dependent delays
PublicationW pracy udowodniono twierdzenie o istnieniu i jednoznaczności rozwiązań oraz o ich ciągłej zależności od warunków początkowych dla układów równań różniczkowych cząstkowych z opóźnionym argumentem, zależnym od funkcji niewiadomej. Posłużono się metodą bicharakterystyk a istnienia dowiedziono stosując twierdzenie Banacha o punkcie stałym.
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PARTIAL WHEAT FLOUR REPLACEMENT WITH GLUTEN-FREE FLOURS IN BREAD - QUALITY, TEXTURE AND ANTIOXIDANT ACTIVITY
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A Comparison of the Efficiency of Deammonification under Different Aeration Strategies in a Laboratory-Scale Sequencing Batch Reactor
PublicationAn important source of nitrogen load entering the biological part of wastewater treatment plants (WWPTs) is derived from the anaerobic sludge digestion processes. Sludge digestion liquors constitute only 1-2% of the inflow to the plant, but the load of nitrogen directed with them to the main stream may be as high as 10-20% of the total nitrogen load. Therefore, numerous studies have focused on treatment of sludge digestion liquors...
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Low-cost solutions for Martian base
PublicationZałogowe misje na Marsa planuje się na 2025-30 r. Wg programu DRM NASA misja trwać ma 2,5 roku, a załoga zamieszka w 2 metalowych ciasnych modułach. Jak wykazują badania socjopsychologów taka misja zakończy się niepowodzeniem. Duża i komfortowa baza wpłynie na zminimalizowanie wielu źródeł stresu. Współczesne technologie i obecny stan wiedzy o Marsie pozwalają na zaprojektowanie i wykonanie bazy marsjańskiej jako przyjaznego człowiekowi...
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Reforging spatial identity for social sustainability
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Network analyses with the use of spatial databases
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Spatial pattern of ASG-EUPOS sites
PublicationThe article presents the spatial pattern analysis of the ASG-EUPOS permanent GNSS stations in Poland. Using different methods and tools (nearest neighbour, Riplay’s K-function, morphology of Thiessen polygons) we proved that the station distribution model changes within scales. At short distances up to 65 km, which are typical lengths in the network, stations are irregularly dispersed. Increasing this distance to 130 km and over...
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Hydrodynamics of tank partially filled with liquid.
PublicationW artykule podano podstawowe równania dynamiki zbiornika wypełnionego częściowo cieczą. Na modelu tego zbiornika przeprowadzono badania eksperymentalne i wyniki tych badań przedstawiono jako efekt końcowy.
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Partial Molar Volumes of Tetrabutylammonium Perchlorate and Tetraphenylborate in N,N-dimethyl-acetamide, Triethylphosphate and Dimethyl Sulfoxide
PublicationThe densities of tetrabutylammonium perchlorate and tetrabutylammonium tetraphenylborate solutions in N,N-dimethylacetamide, acetonitrile, triethylphosphate, and dimethyl sulphoxide have been measured over the whole electrolyte concentration range at 20, 25, and 30°C. From these densities apparent molar volumes and partial molar volumes of the salts at infinite dilution have been evaluated and used to determine the respective...
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Sporothrix schenckii: purification and partial biochemical characterisation of glucosamine-6-phosphate synthase, a potential antifungal target
PublicationW artykule opisano izolację i charakterystykę właściwości natywnego enzymu, syntazy GlcN-6-P z komórek dimorficznego grzyba patogennego Sporothrix schenckii. Masę cząsteczkową enzymu natywnego określono na 350 kDa, a enzymu zdenaturowanego na około 79 kDa, co sugeruje homotetrameryczną strukturę białka. Wartość punktu izoelektrycznego wyniosła 6,26; wyznaczono także parametry kinetyczne katalizowanej reakcji. Aktywność enzymu była...
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Solvation and partial molar volumes of some transition metal cations in N,N-dimethylacetamide, triethylphosphate and acetonitrile.
PublicationW oparciu o precyzyjne pomiary gęstości roztworów nadchloranów metali przejściowych szeregu Mn(II)-Zn(II) w DMA, TEP i AN wyznaczono pozorne molowe oraz graniczne wartości cząstkowych molowych objętości sole w temperaturach 293, 298 i 303,15 K. Wyznaczone wartości rozdzielono na udziały jonowe. Przeanalizowano czynniki decydujące o wielkości cząstkowych molowych objętości solwatowanych kationów.
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PORTAL-LIBRARIES AND THE ACADEMY
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Elgold partial: Scientific papers' abstracts
Open Research DataThe dataset contains 87 Scientific papers' abstracts in English randomly chosen from the folowing scientific disciplines: Biomedicine, Life Sciences, Mathematics, Medicine, Science, Humanities, Social Science.
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Elgold partial: Amazon product reviews
Open Research DataThe dataset contains 34 Amazon product reviews in English. In each text, the named entities are marked. Each name entity is linked to the corresponding Wikipedia if possible. All entities were manually verified by at least three people, which makes the dataset a high-quality gold standard for the evaluation of named entity recognition and linking algorithms.
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Removal of ammonia nitrogen from groundwater during nitrification processes using pressure filters = Usuwanie azotu amonowego z wód podziemnych w procesie nitryfikacji na filtrach ciśnieniowych
PublicationW pracy zaprezentowano wyniki badań w skali ułamkowo technicznej nad wpływem podwyższonego i zmiennego ciśnienia (do 0,4 MPa) na przebieg usuwania amoniaku z wód podziemnych, w procesie nitryfikacji, w złożu filtracyjnym. Ustalono, że wszystkie filtry badawcze, zarówno ciśnieniowe jak i grawitacyjny, wymagały adaptacji do zmienionego składu filtrowanej wody. Okres adaptacji filtrów ciśnieniowych był dłuższy, niż dla filtra grawitacyjnego....
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Nitrogen transformations and mass balances in anaerobic/anoxic/aerobic batch experiments with full-scale biomasses from BNR activated sludge systems.
PublicationThe aim of this study was to investigate nitrogen mass balances occurring inside full-scale BNR activated sludge systems, with special attention to colloidal and dissolved organic nitrogen (CON and DON) transformations. For this purpose, laboratory experiments were carried out using process biomass from two large BNR plants in northern Poland. Two parallel batch reactors were operated in a 3-phase (anaerobic/anoxic/aerobic) cycle....
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Nitrogen transformations and mass balances in anaerobic/anoxic/aerobic batch experiments with full-scale biomasses from BNR activated sludge systems.
PublicationThe aim of this study was to investigate nitrogen mass balances occurring inside full-scale BNR activated sludge systems, with special attention to colloidal and dissolved organic nitrogen (CON and DON) transformations. For this purpose, laboratory experiments were carried out using process biomass from two large BNR plants in northern Poland. Two parallel batch reactors were operated in a 3-phase (anaerobic/anoxic/aerobic) cycle....