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On residualities in the set of Markov operators on C1
PublicationDowodzi się, że zbiór operatorów Markowa na klasie Schattena 1, które są mieszające w normie, jest normowo gęsty, otwarty. Natomiast w topologii mocno operatorowej operatory Markowa mocno mieszające są zbiorem I kategorii.
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The influence of rest interval on total training load during 10 sets of the bench press exercise performed to concentric failure
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Active Annotation in Evaluating the Credibility of Web-Based Medical Information: Guidelines for Creating Training Data Sets for Machine Learning
PublicationMethods Results Discussion References Abbreviations Copyright Abstract Background: The spread of false medical information on the web is rapidly accelerating. Establishing the credibility of web-based medical information has become a pressing necessity. Machine learning offers a solution that, when properly deployed, can be an effective tool in fighting medical misinformation on the web. Objective: The aim of this study is to...
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Aromatic heptaene antibiotics as an alternative for synthetic triazole fungicides in plant protection
PublicationAn in vitro antifungal activity of candicidin and ascosin antibiotics (0,01-10 μg/mL) towards representative strains of phytopathogenic fungi was detd. Both compds. exhibited similar half max. effective concns. inhibiting growth of the fungi as that of tebuconazole used for comparison.
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Impact of Clustering on a Synthetic Instance Generation in Imbalanced Data Streams Classification
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Modeling of chromatographic lipophilicity of food synthetic dyes estimated on different columns
PublicationBadano parametry retencyjne wybranych syntetycznych barwników żywności z wykorzystaniem techniki RP-HPLC z wykorzystaniem kolumn z chemicznie modyfikowanym wypełnieniem typu C-8, C-16, C-18 oraz CN.Uzyskane wyniki mogą być podstawą do stwierdzenia, że badane związki charakteryzują się podobnymi parametrami retencyjnymi w stosunku do kolumn z fazą stacjonarną typu C-8, C-16 oraz C-18.
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Biologically active compounds based on the carbazole scaffold - synthetic and mechanistic aspects
PublicationDoctoral dissertation is divided into three main parts: introduction, results and discussion and experimental. The introduction is divided into four main parts which describe: 5-hydroxytryptamine receptors, the most popular antidepressants, new compounds based on the carbazole structure with affinity for serotonin receptors, telomeres and telomerase with their functions, telomerase inhibition strategies, carbazoles approved in...
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Potential of Functionalized Polyolefins in a Sustainable Polymer Economy: Synthetic Strategies and Applications
PublicationPolymers play a crucial role in our modern life as no other material exists that is so versatile, moldable, and lightweight. Consequently, the demand for polymers will continue to grow with the human population, modernization, and technological developments. However, depleted fossil resources, increasing plastic waste production, ocean pollution, and related growing emission of greenhouse gases has led to a change in the way we...
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Nanostructure characterization of (SmS)1.19TaS2 by means of STM/STS
PublicationW publikacji przedstawiono badania za pomocą techniki STM i STS powierzchni kryształów warstwowego związki typu misfit(SmS)1.19TaS2. Badania pozwalają sądzić, że powierzchniową warstwą jest warstwa Sm-S.
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Intelligent Autonomous Robot Supporting Small Pets in Domestic Environment
PublicationIn this contribution, we present preliminary results of the student project aimed at the development of an intelligent autonomous robot supporting small pets in a domestic environment. The main task of this robot is to protect a freely moving small pets against accidental stepping on them by home residents. For this purpose, we have developed the mobile robot which follows a pet and makes an alarm signal when a human is approaching....
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Ischemia during rest intervals between sets prevents decreases in fatigue during the explosive squat exercise: a randomized, crossover study
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THE INFLUENCE OF QUESTION SET ON STUDENT QUIZ RESULTS
PublicationThe advent of e-Learning tools allowing for automated online test grading will probably increase the frequency of using tests in technical education. The same tools may provide for measures of test question quality. By purposely crafting question sets, test grading may serve different goals. The paper contains examples and test study with score histograms.
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On bipartization of cubic graphs by removal of an independent set
PublicationWe study a new problem for cubic graphs: bipartization of a cubic graph Q by deleting sufficiently large independent set.
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Molecular properties with dual basis set methods
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Analiza awarii masztów na STS Pogoria
Publication''Pogoria'' - żaglowiec szkolny uczestniczyła w trakcie ''TALL SHIP RACE 2009'' w rejsie na trasie Gdynia-St.Petesburg. W dniu 7 lipca 2009 roku w trakcie bezpośredniej rywalizacji z płynącą obok siostrzaną - nieco młodszą - ''Kaliakrą'' (jacht płynął lewym halsem, kursem 055, przy wietrze ESE o sile 6B), podczas nadmiernego wyostrzenia do wietru, nastąpiło złamanie fokmasztu, a w konsekwencji - pozostałych dwóch masztów. W artykule...
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Developing an Ontology from Set of Experience KnowledgeStructure
PublicationWhen referring to knowledge forms,collecting for all decision eventsin a knowledge-explicit way becomes a significant ask for any company. Set of experience knowledge structure can assis in accomplishing this purpose.However,after collecting,distributing and sharing that knowledge as adecisional DNA is even a more important advance.Distributing and sharing companies' decisional DNA through an efficient development of Ontologies...
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Control of a vapour microturbine set in cogeneration applications
PublicationSystems with microturbines are implemented for local generation of heat and electricity. This paper presents the analysis of control concepts for a vapour microturbine set with a generator with permanent magnets, intended to work in small heat and power plants. Control system variants differed by the selection of controlled signals and set parameters. Possible ways of control were discussed and compared with experimentally determined...
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May dithiophosphoric acid participate in the set process?
PublicationZastosowano otrzymane S-tioacyloditiofosforany jako odczynniki tioacylujące do syntezy kwasów tiohydroksamowych. Dla większości N-alkilohydroksyloamin produktem tej reakcji były żądane kwasy tiohydroksamowe. Natomiast gdy substratem jest hydroksyloamina zawierająca duży objętościowo podstawnik na atomie azotu lub gdy posiada dwa podstawniki na atomie azotu w reakcji tej tworzą się wyłącznie odpowiednie O-tioacylohydroksyloaminy....
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CeCu2O4 as a functional layer on solid oxide fuel cells for synthetic biogas reforming
PublicationSolid Oxide Fuel Cells (SOFC) are one of the most promising electrochemical devices, which can convert chemical energy to the electrical energy these days. Their ability to work with different kind of fuel makes them noteworthy. SOFC can work with biogas. The problem arises when solid carbon starts to be deposited in anode. That leads to degradation of fuel cell. Simple solution is to apply catalytic functional layer, which is...
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Wetting properties of biosurfactant (rhamnolipid) with synthetic surfactants mixtures in the context of soil remediation
PublicationWetting properties of synthetic surfactant Rokanol NL6, biosurfactant JBR 425 and their mixture have been investigated.The results show that synthetic surfactant addition worsens physicochemical properties of pure biosurfactant but exhibits much higher oil removal efficiency than biosurfactant does.
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Hydrogen assisted cracking of 2205 duplex stainless steel in synthetic sea water
PublicationThe cracking behavior of 2205 duplex stainless steels (DSSs) in synthetic sea water under cathodic polarization condition was investigated. (SSRT) method was employed in aim to evaluate the susceptibility to hydrogen assisted cracking. The results showed that the reduction in the uniform elongation (UEL) and the reduction of area (RA) varied with the applied cathodic current density. Significant reductions in ductility were found,...
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Synthetic Principles Determining Local Organization of Copolyesters Prepared from Lactones and Macrolactones
PublicationA highly effective and facile technique for catalytic ring-opening copolymerization (cROP) of lactones viz. ε- caprolactone and ε-decalactone with ω-pentadecalactone is being described. The reactions were mediated by Zn- and Cabased tridentate Schiff base complexes and benzyl alcohol as initiator. The catalysts were successfully employed for the preparation of numerous block and random copolymers. To unravel the composition of...
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COMPLEXITY OF INNOVATIVE FINANCIAL PRODUCTS: THE CASE OF SYNTHETIC EXCHANGE TRADED FUNDS IN EUROPE
PublicationThe aim of the text is the presentation of the most important categories of exchange traded funds (ETFs) – physical and synthetic ones. A theoretical part of the text includes an overview of the main features of ETFs, the presentation of differences between physical and synthetic funds and the main risks posed by both types to their users and the whole financial systems. An empirical part focuses on the European market. Time span...
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The Influence of Synthetic Oxygenates on Euro IV Diesel Passenger Car Exhaust Emissions
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Patterns of synthetic cathinones use and their impact on depressive symptoms and parafunctional oral behaviors
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Natural and synthetic acridines/acridones as antitumor agents: their biological activities and methods of synthesis.
PublicationPraca stanowi przegląd opisanych w literaturze chemicznej modyfikacji struktur naturalnych i syntetycznych pochodnych akrydyny i akrydonu. Artykuł obejmuje swym zakresem metody syntezy, a także wpływ budowy cząsteczek tych związków na ich aktywność przeciwnowotworową oraz mechanizm działania.
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Synthetic strategies in construction of organic low molecular-weight carrier-drug conjugates
PublicationInefficient transportation of polar metabolic inhibitors through cell membranes of eukaryotic and prokaryotic cells precludes their direct use as drug candidates in chemotherapy. One of the possible solutions to this problem is application of the ‘Trojan horse’ strategy, i.e. conjugation of an active substance with a molecular carrier of organic or inorganic nature, facilitating membrane penetration. In this work, the synthetic...
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The structure of novel polyurethanes containing synthetic poly[(R,S)-3-hydroxybutyrate]
PublicationThe aim of this study was to estimate the structure of new polyurethanes with the potential to be used in medicine. Atactic poly[(R,S)-3-hydroxybutyrate], obtained via a ring-opening polymerization, and polycaprolactonediol or polyoxytetramethylenediol were used to built the soft segments. 4,4'-methylene dicyclohexyl diisocyanate and 1,4-butanediol were the components to form hard segments. Polyurethanes with low-molecular weight...
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Preeclampsia Risk Prediction Using Machine Learning Methods Trained on Synthetic Data
PublicationThis paper describes a research study that investigates the use of machine learning algorithms on synthetic data to classify the risk of developing preeclampsia by pregnant women. Synthetic datasets were generated based on parameter distributions from three real patient studies. Four models were compared: XGBoost, Support Vector Machine (SVM), Random Forest, and Explainable Boosting Machines (EBM). The study found that the XGBoost...
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Snow cover and its variability in the Polish Sudetes Mts. and the Sudetic Foreland
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Uproszczenia przy kształtowaniu krzywych przejściowych i sens ich utrzymywania
PublicationW pracy podjęto kwestię licznych założeń uproszczających występujących przy kształtowaniu krzywych przejściowych w drogach kolejowych. Dotyczą one samej procedury wyznaczania równania krzywej przejściowej, a także wpisywania tej krzywej w układ geometryczny. Przedstawiono ścisłe rozwiązanie problemu, prowadzące do uzyskania krzywej przejściowej w postaci klotoidy. Pokazano przykład jej zastosowania, przy wykorzystaniu lokalnego...
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Numerical Study of the Impinging Jets Formed by an Injector with Different Nozzle Diameters
PublicationThe collision of two or more liquid jets may provide considerable atomisation and efficient mixing of injected substances at the same time. This phenomenon is used, among others, in rocket engines, where the fuel and oxidiser are introduced separately and almost immediately mixed through self-impingement. Depending on the injection and operating conditions, diverse configurations of impinging jets are used, such as doublets,...
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Zarządzanie uprawnieniami i funkcje administracyjne w systemie SETI-1
PublicationW artykule przedstawiono zadania i cele podsystemu uprawnień i podsystemu administracyjnego systemu SETI-1, przeznaczonego do wspomagania zarządzania Wydziałem Elektroniki, Telekomunikacji i Informatyki Politechniki Gdańskiej. Omówione zostały podstawowe zagadnienia nadawania i kontroli uprawnień użytkowników. Opisano rejestrowanie stanów dokumentów oraz operacji użytkownika. W artykule przedstawiono także sposób wykorzystania...
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System SETI-1 jako wspomaganie administrowania Wydziałem ETI PG
PublicationArtykuł przedstawia zakres prac i osiągnięcia zespołów zajmujących się informatyzacją administracji Wydziału ETI PG. Tworzony system (robocza nazwana SETI-1) znajduje się aktualnie w początkowej fazie implementacji (zakończono fazy specyfikowania wymagań, analizy i planowania).Autorzy artykułu pracują w tzw. grupach dziedzinowych - odpowiedzialnych za zdefiniowanie i oprogramowanie funkcjonalności systemu przeznaczonych bezpośrednio...
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Accidental wow evaluation based on sinusoidal modeling and neural nets prediction
PublicationReferat przedstawia opis algorytmu do określenia charakterystyki zniekształcenia kołysania dźwięku. Prezentowane podejście wykorzystuje sinusoidalną analizę dźwięku bazującą zarówno na amplitudowym jak i fazowym widmie sygnału fonicznego. Trajektorie poszczególnych składowych tonalnych, obrazujące zniekształcenie kołysania, określane są na podstawie analizy ich chwilowych amplitud, częstotliwości i faz. Dodatkowo referat przedstawia...
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Degradibility in vitro of polyurethanes based on synthetic atactic poly[)R,S)-3-hydroxybutyrate
PublicationThe aim of the paper was to determine the degradibility of aliphatic polyurethanes in hydrolytic and oxidative solutions. DSC, GPC, density, polymer surface morphology were studied.
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Investigation of functional layers of solid oxide fuel cell anodes for synthetic biogas reforming
PublicationSolid oxide fuel cells (SOFCs) are one of the most promising energy conversion devices due to their high efficiency, low pollution and fuel flexibility. Unfortunately, when hydrocarbons are used as a fuel, for example in the form of a biogas, solid carbon can deposit on the anode surface. This process leads to the degradation of the fuel cell performance. A possible solution to this problem is to apply an additional catalytic material,...
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Investigation of catalytic layers on anode for solid oxide fuel cells operating with synthetic biogas
PublicationIn this paper solid oxide fuel cells operating with dry synthetic biogas have been examined. In order to increase their stability the layers of CuO-CeO2, Cu1.3Mn1.7O4 and Y0.08Sr0.92Ti0.8Fe0.2O3 -δ have been deposited on the Ni-YSZ anode site. These layers should catalyze the internal biogas reforming and prevent the carbon deposition on the anode site. It has been found that CuO-CeO2 and Cu1.3Mn1.7O4 catalysts led to an increase...
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THE COMPARATIVE ANALYSIS OF PREPARED MIXTURES OF CRAMBE ABYSSINICA SEED OIL WITH MINERAL AND SYNTHETIC OIL
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Designing of Substrates and Inhibitors of Bovine α-Chymotrypsin with Synthetic Phenylalanine Analogues in Position P1
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Thermal Barrier Coatings for High-Temperature Performance of Nickel-Based Superalloys: A Synthetic Review
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3D seafloor reconstruction using data from side scan and synthetic aperture sonar
PublicationSide scan and synthetic aperture sonars are widely used imaging systems in the underwater environment. They are relatively cheap and easy to deploy, in comparison with more powerful sensors, like multibeam echosounders. Although side scan and synthetic aperture sonars does not provide seafloor bathymetry directly, their records are finally related to seafloor images. Moreover, the analysis of such images performed by human eye...
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Efficient long-term conservation of Taraxacum pieninicum synthetic seeds in slow growth conditions
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Proteolysis of whey protein isolates in nanoemulsion systems: impact of nanoemulsification and additional synthetic emulsifiers
PublicationNanoemulsions are currently of interest in the functional food sector because their small droplet size (100–500 nm) provides a number of potential advantages over conventional emulsions. This study concerned the behavior of nanoemulsions stabilized with whey proteins and two synthetic emulsifiers (Tween 80 and Croduret), and exposed to conditions simulating the human upper gastrointestinal tract. In particular, the effect of synthetic...
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Xanthone synthetic derivatives with high anticandidal activity and positive mycostatic selectivity index values
PublicationWith the current massive increases in drug-resistant microbial infection as well as the significant role of fungal infections in the death toll of COVID-19, discovering new antifungals is extremely important. Natural and synthetic xanthones are promising derivatives, although only few reports have demonstrated their antifungal mechanism of action in detail. Newly synthetized by us xanthone derivative 44 exhibited strong antifungal...
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Music Genre Recognition in the Rough Set-Based Environment
PublicationThe aim of this paper is to investigate music genre recognition in the rough set-based environment. Experiments involve a parameterized music data-base containing 1100 music excerpts. The database is divided into 11 classes cor-responding to music genres. Tests are conducted using the Rough Set Exploration System (RSES), a toolset for analyzing data with the use of methods based on the rough set theory. Classification effectiveness...
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Asymptotic behaviour in the set of nonhomogeneous chains of stochastic operators
PublicationWe study different types of asymptotic behaviour in the set of (infinite dimensional) nonhomogeneous chains of stochastic operators acting on L1(μ) spaces. In order to examine its structure we consider different norm and strong operator topologies. To describe the nature of the set of nonhomogeneous chains of Markov operators with a particular limit behaviour we use the category theorem of Baire. We show that the geometric structure...
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ALLYING SYSTEM THINKING AND SET OF EXPERIENCE KNOWLEDGE STRUCTURE
PublicationThe approach of system thinking is completely different from traditional forms of analysis. Even the ancient meaning of word analysis is “a breaking up”. Set of Experience Knowledge Structure is an atomic record of decision event that can be grouped together and form some form of decision DNA of an organization. The question that this paper is trying to answer in how those concepts can be merged.
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Enhancing the set of experience knowledge structure as a reflexive ontology
PublicationPrzedstawiono mechanizm wspomagania reprezentacji wiedzy wyrażonej w postaci zbioru doświadczeń przy pomocy ontologii.
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Modelling the set of earthworks machinery with the use of computer simulation
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