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Modelling of sequencing batch reactor operating at various aeration modes
PublicationThe presented study involved designing a computer model of a sequencing batch reactor (SBR) at laboratory scale. The data pertaining to the technical aspects of the bioreactor and quality indicators of wastewater constituted the input for the employed simulation tool, i.e. GPS-X software package. The results of a simulation involving a 12-hour operation cycle are presented in this work; each cycle included 6 phases: filling, mixing,...
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Comparative analysis of various transformation techniques for voiceless consonants modeling
PublicationIn this paper, a comparison of various transformation techniques, namely Discrete Fourier Transform (DFT), Discrete Cosine Transform (DCT) and Discrete Walsh Hadamard Transform (DWHT) are performed in the context of their application to voiceless consonant modeling. Speech features based on these transformation techniques are extracted. These features are mean and derivative values of cepstrum coefficients, derived from each transformation....
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Series on Biomechanics
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QoS provisioning in a single-cell ad hoc WLAN via queuing and stochastic games
PublicationPokazano, że stosowanie agresywnych strategii dostępu do medium transmisyjnego może stanowić dla stacji sieci gwarancję równej szansy uzyskania pożądanej przepływności oraz zachowania jej na cały czas transferu danych. Przeprowadzono analizę gier typu stochastycznego pod kątem istnienia równowagi strategicznej przy założeniu probabilistycznych strategii dostępu.
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Characterizing the Performance of <span class="sc">xor</span> Games and the Shannon Capacity of Graphs
PublicationIn this Letter we give a set of necessary and sufficient conditions such that quantum players of a two-party xor game cannot perform any better than classical players. With any such game, we associate a graph and examine its zero-error communication capacity. This allows us to specify a broad new class of graphs for which the Shannon capacity can be calculated. The conditions also enable the parametrization of new families of games...
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Computer simulation of induction heating system with series inverter
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Entropy of Financial Time Series Due to the Shock of War
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Video of LEGO Bricks on Conveyor Belt Dataset Series
PublicationThe dataset series titled Video of LEGO bricks on conveyor belt is composed of 14 datasets containing video recordings of a moving white conveyor belt. The recordings were created using a smartphone camera in Full HD resolution. The dataset allows for the preparation of data for neural network training, and building of a LEGO sorting machine that can help builders to organise their collections.
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Comparison of EHD devices with parallel and in series spiked electrodes
PublicationIn this paper two electrohydrodynamic (EHD) devices for gas pumping and cleaning are presented. In both cases to induce an airflow in these EHD devices corona discharge was used. The discharge was generated between the spiked electrodes set parallel (the first case) or in series (the second case) and the plate electrodes. An asymmetric electric field and generated discharge result in unidirectional gas flow through the EHD device....
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The study on dynamic properties of monolithic ball end mills with various slenderness
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Gender differences in body-esteem among seniors: Beauty and health considerations
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Various approaches to a human preference analysis in a digital signage display design
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Algebraic periods of self-maps of a rational exterior space of rank 2
PublicationArtykuł stanowi kompletny opis okresów algebraicznych dla odwzorowań wymiernej przestrzeni zewnętrznej rangi 2 w siebie.
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Structural properties of hydration shell around various conformations of simple polypeptides
PublicationIn this paper we investigate structural properties of water within the solvation shell around the peptide core created by a well-defined conformation of polypeptide chain. The following secondary structures are investigated: linear (straight chain), and three helices PII (polyproline-like), 310, and α. We propose using the two-particle contribution to entropy as a rational measure of the water structural ordering within the solvation...
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The use of fosmid metagenomic libraries in preliminary screening for various biological activities
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Sympathetic nervous system and arterial hypertension: new perspectives, new data
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The oxidation of limonene at raised pressure and over the various titanium-silicate catalysts
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Metabolic transformation of antitumor agent C1311 with various fractions of rat liver.
PublicationWykazano, że enzymatyczna aktywacja jest konieczna dla aktywności bilogicznej pochodnej C-1311. Zbadano przemiany związku w obecności różnych frakcji enzymatycznych mikrosomalnych komórek wątroby szczura.Badania te wykazały, że związek C-1311 jest bardziej podatny na transformację pod wpływem frakcji aktywowanych enzymów mikrosomalnych (CYP1A, CYP2B, CYP3A i CYP4A) niż frakcji S9, cytozolowej czy mikrosomów nieaktywowanych. Związek...
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Cavitation erosion of steels processed by CO2 laser beams of various parameters.
PublicationPrzedstawiono wpływ parametrów przetapiania stali za pomocą wiązki lasera CO2 na jej własności kawitacyjne. Do badań użyto stali 45, 2H13 i OH18N9. Wyniki badań wskazują na znaczny wpływ parametrów przetapiania na poziom odporności kawitacyjnej stali.
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Determination of the Stereostructure of Pyrimidine Nucleoside Derivatives with a Combination of Various Chiroptical Methods
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Allostatic load index and its clinical correlates at various stages of psychosis
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Mercury in various components of the environment (Gulf of Gdańsk, southern Baltic Sea)
PublicationTotal mercury concentration was determined monthly form January 2012 to May 2013 in the water (microlayer and the surface), plankton, epilithon, epiphyton, benthos and sediment. The study was conducted in the coastal zone of the Gulf of Gdańsk. The abundance and biomass of plankton, benthos; the concentration of suspended particulate matter, particulate organic carbon and nitrogen; δ13C and δ15N in the suspended matter; sediment...
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The bahaviour of selected silver coated body implants in presence of various bacteria
PublicationThe article deals with implants covered with silver nanoparticles and its influence on bacteria adhesion.
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More on the poly(L-lactide) prepared using ferrous acetate as catalyst
PublicationPolilaktydy przygotowano w syntezie polegajacej na otworzeniu pierścienia (ROP). Syntezę przeprowadzono w bloku z różną ilością octanu żelaza, użytego jako katalizatora. Zbadano przebieg krystalizacji polilaktydów i podatnośc na biodegradację w osadzie czynnym.
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Study of various machine learning approaches for Sentinel-2 derived bathymetry
PublicationIn recent years precise and up-to-date information regarding seabed depth has become more and more important for companies and institutions that operate on coastlines. While direct, in-situ measurements are performed regularly, they are expensive, time-consuming and impractical to be performed in short time intervals. At the same time, an ever-increasing amount of satellite imaging data becomes available. With these images, it...
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Influence of the Addition of Recycled Aggregates and Polymer Fibers on the Properties of Pervious Concrete
PublicationThe aim of the study was to check the possibility of reusing aggregate from recycled concrete waste and rubber granules from car tires as partial substitution of natural aggregate. The main objective was to investigate the effects of recycled waste aggregate modified with polymer fibers on the compressive and flexural strength, modulus of elasticity and permeability of pervious concrete. Fibers with a multifilament structure and...
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Tensile validation tests with failure criteria comparison for various GFRP laminates
PublicationThe paper studies the mechanical properties of glass fibre reinforced polymers (GFRP) with various types and orientation of reinforcement. Analyzed specimens manufactured in the infusion process are made of polymer vinyl ester resin reinforced with glass fibres. Several samples were examined containing different plies and various fibres orientation [0, 90] or [+45, –45]. To assess the mechanical parameters of laminates, a series...
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Treatment Wetland effluent quality improvement by usage sorbents of various origin
PublicationTWs are finding as low-cost and also effective system to treat domestic wastewater. The aim of this study is to find suitable adsorbing material for application in an additional treatment unit where treatment wetlands do not provide sufficient PO4 3- reduction level. Material M1 is a fine-grained by-product of thermal treatment of carbonate-siliceous rock (opoka) with high content of calcium carbonate CaCO3 in temperature 700°C....
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Various cases of preservation and adaptive reuse Heritage Buildings in the Port of Gdynia
PublicationThe port of Gdynia contains a diverse range of heritage assets, starting with its spatial layout which is an urban concept designed in the first half of the 1920s. It is important to point out, this historically-shaped harbor space is preserved in its general idea and still functioning in port activities. Another significant element is the structural, technological solution which was the basis for constructing the entire port area...
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Comparative study on the effectiveness of various types of road traffic intensity detectors
PublicationVehicle detection and speed measurements are crucial tasks in traffic monitoring systems. In this work, we focus on several types of electronic sensors, operating on different physical principles in order to compare their effectiveness in real traffic conditions. Commercial solutions are based on road tubes, microwave sensors, LiDARs, and video cameras. Distributed traffic monitoring systems require a high number of monitoring...
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Visualization of events using various kinds of synchronized data for the Border Guard
PublicationSTRADAR project is dedicated to streaming real-time data in a distributed dispatcher and teleinfor-mation system of the Border Guard. The Events Visualization Post is a software designed for simultaneous visualization of data of different types in BG headquarters. The software allows the operator to visualize files, images, SMS, SDS, video, audio, and current or archival data on naval situation on digital maps. All the visualized...
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Experiences from operation of various expansion devices in small scale ORC
PublicationThe main aim of this paper was to present various expansion devices for an application in the small scale ORC system. The investigations were carried out in two parallel directions. One direction was to design and construct a device dedicated to the analyzed ORC system. The second direction was to adapt existing expansion devices for the needs of the analyzed ORC system. Four various devices were described and presented together...
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Comparison of various flow maldistribution quantification methods in mini heat exchangers
PublicationThe aim of study is to compare various flow maldistribution quantification methods, using velocity, mass flow rate, pressure, and temperature. An experimentally validated numerical study has been prepared and a heat exchanger with 34 semi-circular channels with a diameter of 3.1 mm has been tested. The minichannels were heated from the bottom with a heat flux of 50, 60, 70, and 80 kW/m2. The cases for various inlet velocities of...
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Prognostic significance of pretreatment VEGF, survivin, and Smac/DIABLO serum levels in patients with serous ovarian carcinoma
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Irregular variations in GPS time series by probability and noise analysis
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Power flow in typical series-parallel hybrid filters topologies
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Coil Design for Wireless Power Transfer with Series-Parallel Compensation
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A memoryless direct digital synthesizer based on Taylor series approach.
PublicationW pracy rozważono dwa podejścia do projektowania cyfrowego, kwadraturowego generatora syntezy bezpośredniej (DDS). Pierwsze z nich wykorzystuje małą pamięć na próbki jednego okresu bazowej sinusoidy zespolonej o małej szybkości próbkowania i interpolację tej sinusoidy szeregiem Taylora do docelowej, większej szybkości próbkowania. Drugie jest rozwiązaniem bezpamięciowym z bezpośrednią aproksymacją zespolonej sinusoidy za pomocą...
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A new multi-process collaborative architecture for time series classification
PublicationTime series classification (TSC) is the problem of categorizing time series data by using machine learning techniques. Its applications vary from cybersecurity and health care to remote sensing and human activity recognition. In this paper, we propose a novel multi-process collaborative architecture for TSC. The propositioned method amalgamates multi-head convolutional neural networks and capsule mechanism. In addition to the discovery...
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CHILDS NERVOUS SYSTEM
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Non-ferrous Metals
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International Journal of Computer Games Technology
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Geometric Specification of Non-Circular Pulleys Made with Various Additive Manufacturing Techniques
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Mechanical and technological aspects of micro ball end milling with various tool inclinations
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Fertility Rate and Assessment of the Cytoprotective Capacity of Various Types of Holothuroidea Extracts on Spermatozoa
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Influence of laser remelting at cryogenic conditions on corrosion resistance of non-ferrous alloys
PublicationCelem nadtapiania laserowego elementów wytwarzanych z stopów aluminium, miedzi i tytanu jest uzyskanie wysokiej twadrości i odporności na korozję dla wydłużenia okresu ich eksploatacji w rezultacie ich szybkiej krystalizacji. Końcowa mikrostruktura, skład fazowy i właściwości wymienionych stopów zależą od parametrów obróbki laserowej oraz budowy wykresów równowagi fazowej. W artykule przedstawiono wpływ laserowego nadtapiania...
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Composite materials for Solid Oxide Fuel Cells - various ways of preparation and application
PublicationWykonano przeglad mozliwosci zastosowania materialow kompozytowych w wysokotemperaturowych tlenkowych ogniwach paliwowych oraz scharakeryzowano najbardziej popularne metody wytwarzania i nakladania tego typu materialow.
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Why are behaviors of children suffering from various neuronopathic types of mucopolysaccharidoses different?
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Development of biodegradable polyesters with various microstructures for highly controlled release of epirubicin and cyclophosphamide
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Morphological and physico-biochemical characterization of various tomato cultivars in a simplified soilless media
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