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Search results for: KNOWLEDGE BASE STRUCTURE
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The Positioning Accuracy of BAUV Using Fusion of Data from USBL System and Movement Parameters Measurements
PublicationThe article presents a study of the accuracy of estimating the position coordinates of BAUV (Biomimetic Autonomous Underwater Vehicle) by the extended Kalman filter (EKF) method. The fusion of movement parameters measurements and position coordinates fixes was applied. The movement parameters measurements are carried out by on-board navigation devices, while the position coordinates fixes are done by the USBL (Ultra Short Base...
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Speed estimation of a car at impact with a W-beam guardrail using numerical simulations and machine learning
PublicationThis paper aimed at developing a new method of estimating the impact speed of a passenger car at the moment of a crash into a W-beam road safety barrier. The determination of such a speed based on the accident outcomes is demanding, because often there is no access to full accident data. However, accurate determination of the impact speed is one of the key elements in the reconstruction of road accidents. A machine learning algorithm...
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Low temperature broad band dielectric spectroscopy of multiferroic Bi6Fe2Ti3O18 ceramics
PublicationIn the present research the tool of broadband dielectric spectroscopy was utilized to characterize dielectric behavior of Bi6Fe2Ti3O18 (BFTO) Aurivillius-type multiferroic ceramics. Dielectric response of BFTO ceramics was studied in the frequency domain (Δν=0.1Hz – 10MHz) within the temperature range ΔT=-100°C – 200°C. The Kramers-Kronig data validation test was employed to validate the impedance data measurements and it was found...
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Interactions of telomeric proteins with nucleic acids: sequence recognition on intact and oxidatively damaged telomeres
PublicationTelomeres are complex nucleoprotein assemblies that play a vital role in the maintenance of functional ends of linear chromosomes. Telomeric DNA, composed of tandem repeats of the 5'-TTAGGG-3' motif, solves the so-called end replication problem: as chromosomes shorten with each cell division, no information is lost, and the telomere can be re-extended. In the cell, many protein factors regulate telomere length, nuclear positioning...
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Magnetoelectric, spectroscopic, optical and elastic properties of Co-doped BaTiO3 ceramics
Publicationhe BaTiO3 perovskite is widely used in the electronic technology due to its dielectric, piezoelectric and ferroelectric properties and is a well-known base for obtaining a promising multifunctional material. In this paper we report the extensive studies on the Co-doped BaTiO3 ceramics for the wide range cobalt content. Full structural characterization of studied samples in a 20–450 K range was provided. The results of research...
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Sources and composition of chemical pollution in Maritime Antarctica (King George Island), part 2: Organic and inorganic chemicals in snow cover at the Warszawa Icefield
PublicationThe study area is located on King George Island, where 90% of the area is permanently glaciated. This study provides a comprehensive analysis of the inorganic and organic chemistry of snow cover in the icefield and a comparison against previous results obtained in fresh water. Snow samples were collected in the summer of 2017 in the Warszawa Icefield area. Sampling points are located along two transects: between the Arctowski Polish...
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Investigation on Swelling of Agar-Based Antibacterial Hydrogels for Hard-To-Heal Wound Dressings
PublicationDespite a wide range of available wound treatments, hard-to-heal wounds still pose a challenge. Hydrogels are often used as dressings for these wounds, because they sustain moisture in the wound environment, supporting the natural healing process. However, it is still not fully understood how physicochemical properties of hydrogel matrix affect the drug release process. Thus, detailed swelling kinetics examination coupled with...
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Corrosion performance of super duplex stainless steel and pipeline steel dissimilar welded joints: a comprehensive investigation for marine structures
PublicationThis study investigates the corrosion behavior of dissimilar gas tungsten arc (GTA) welded joints between super duplex stainless steel (sDSS 2507) and pipeline steel (X-70) using electrochemical and immersion corrosion tests. The GTA welds were fabricated using ER2594 and ER309L fller metals. The study examined the electrochemical characteristics and continuous corrosion behavior of samples extracted from various zones of the weldments...
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Challenges for universities in the face of knowledge-based economy - directions for higher education institutions in the Baltic Sea Region
PublicationThe aim of this paper is to present new challenges that are faced by universities in the knowledge-based economy. There are several phenomena that can presently be observed like the need for life-long learning or interdisciplinary approach, and universities should prepare their graduates for those challenges. One of the crucial questions that universities need to ask is how to teach and what to teach. Knowledge becomes obsolete...
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Challenges for universities in the face of the knowledge-based economy - Directions for higher education institutions in the Baltic Sea Region
PublicationThe aim of this paper is to present new challenges that are faced by universities in the knowledge-based economy. There are several phenomena that can presently be observed like the need for life-long learning or interdisciplinary approach, and universities should prepare their graduates for those challenges. One of the crucial questions that universities need to ask is how to teach and what to teach. Knowledge becomes obsolete...
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Subjective tests for gathering knowledge for applying color grading to video clips automatically
PublicationThe analysis of film music concerning caused emotions may allow for a more accurate adaptation of the color of the film in the context of color grading. Therefore, this paper aims to gather knowledge on the correlation between the applied color palette to a video clip, music associated with a particular shot, and emotions evoked. For that purpose, subjective tests are prepared in which several video clips are presented with or...
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KQL as Application of SQL Rationale for Knowledge Bases
PublicationW ramach inicjatywy Semantic Web rozwijane są systemy wnioskowania z wiedzy. Ciągle otwartym problemem są również języki dostępu do takich systemów. W artykule zaproponowano nowy język dostępu do zmodularyzowanych baz wiedzy, o cechach umożliwiających jego kompleksowe wykorzystaniew systemach zarządzania wiedzą, w sposób analogiczny do wykorzystania języka SQL w systemach relacyjnych baz danych.
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Knowledge management - decision support in a workflow system
PublicationPrzedstawiono nowatorski model zarzadzania wiedza w procesach decyzyjnych w systemie opartym na przeplywie ''workflow''.
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Concrete-domain reasoning techniques in knowledge cartography
PublicationWiele zjawisk w świecie rzeczywistym opisujemy korzystając z liczb i symboli. W ramach naszej pracy jako punkt wyjścia traktujemy podejście kartograficzne opracowane na potrzeby wnioskowania z ontologii opartych na logice opisowej i pozwalające na efektywne przetwarzanie baz wiedzy zwierających dużą liczbę osobników. Niniejszy artykuł przedstawia rozszerzenie podejścia kartograficznego pozwalające na wnioskowanie z wartości symbolicznych,...
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Applications of knowledge technologies to sound and vision engineering
PublicationSpecjalność Inżynieria Dźwięku i Obrazu jest ukierunkowana przede wszystkim na aplikacje praktyczne metod rejestracji i przetwarzania sygnałów fonicznych i wizyjnych we współczesnej telekomunikacji i w multimediach. W związku z tym, specjalność ta wykorzystuje również wiedzę z obszaru akustyki, psychofizjologii percepcji a także estetyki muzycznej. W zastosowaniach multimedialnej technologii informatycznej w telekomunikacji, w...
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Knowledge mangement: towards smart it suport system
PublicationW pracy zaprezentowano problematykę wykorzystania wiedzy w projektowaniu systemów inteligentnych. wydaje się, bowiem, że przy realizacji przedsięwzięcia zarządzanie wiedzą w procesach analizy wymagań ma kluczowe znaczenie dla sukcesu przedsięwzięcia. Omówiono metody pozyskiwania i przetwarzania wiedzy na potrzeby semantic web, scharakteryzowano to podejście, a także wykazano jego przydatność dla systemów informatycznych wspomagających...
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Contribution to the Knowledge of the Lichen Biota of Bolivia. 6
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Contribution to the knowledge of the lichen biota of Bolivia. 5
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Contribution to the knowledge of the lichen biota of Bolivia. 7
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Editorial: Knowledge management and ontologies. Part 2
PublicationPrzedstawiono najnowsze kierunki badań w zakresie obszaru zarządzania wiedzą i ontologicznej reprezentacji wiedzy.
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Editorial: Knowledge management and ontologies. Part 1
PublicationPrzedstawiono najnowsze kierunki badań w zakresie obszaru zarządzania wiedzą i ontologicznej reprezentacji wiedzy.
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Institutionalization of knowledge sharing in a software development organization
PublicationZaproponowano podejście modelowe do problemu wymiany wiedzy. Omówiono implementację modelu na przykładzie instytucji zajmującej się produkcja oprogramowania komputerowego.
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Semantic memory architecture for knowledge acquisition and management
PublicationRozumienie informacji zawartej w tekście przez komputer wymaga wiedzy stojacej za systemem informatycznym. Wiedza ta nie jest implicite zapisanej w analizowanym tekscie. Zapisana może być ona w postaci ontologii badanej dziedziny. Zasadniczym zagadnieniem jest konstrukcja takiej ontologii. Artykuł przedstawia podeście oparte na grze 20 pytań do budowy przestrzeni semantycznej dla wybranej dziedziny.
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Web search results clusterization with background knowledge
PublicationClusterization of web pages is an attractive wayfor presenting web resources. Arranging pages into groups ofsimilar topics simplifies and shorten the search process. Thispaper concerns the problem of clustering web pages and presentsour approach to this issue. Our solution is focused on findingsimilarities between documents delivered by different web searchengines. This process was accomplished by applying WordNetdictionary.
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Knowledge management embedded in software engineering processes
PublicationW pracy omówiono systemy i narzędzia wspomagające wykrywanie wiedzy ukrytej w procesach związanych z wytwarzaniem skomplikowanych systemów oprogramowania
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Knowledge management embedded in software engineering processes
PublicationW pracy przedstawiono model systemu pozyskiwania wiedzy zawartej w procesach inżynierii oprogramowania.
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Knowledge processing methodologies in intelligent autonomous systems
PublicationPrzedstawiono najnowsze trendy oraz stan badań światowych w zakresie wspomagania procesów zarządzania wiedzą w inteligentnych systemach autonomicznych.
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The approach to engineering tasks composition on knowledge portals
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Entrepreneurial Orientation, Knowledge Utilization and Internationalization of Firms
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Gender and Business Competences of Knowledge Workers in Poland
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Design of knowledge based systems in environmental engineering.
PublicationW pracy omawia się konstrukcję samo narastającego modelu rozmytego zarządzania przedsięwzięciami informatycznymi, stosowanego do wspomagania wytwarzania systemów opartych na wiedzy. Proponowany model służy w szczególności do zarządzania zmianami finansowania i czasu realizacji projektów. Opiera się on na eksperymentalnej regułowej wiedzy, pochodzącej z realizacji zarządzania przedsięwzięciami informatycznymi, na teorii systemów...
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Knowledge supply chain system: a conceptual model.
PublicationPrzedstawiono podstawy teoretyczne koncepcyjnego modelu platformy wspomagającej szerokie spectrum problemów zarządzania wiedzą.
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Design of knowledge-based systems in environmental engineering.
PublicationW pracy omawia się konstrukcję iteracyjnie dostrajającego się modelu rozmytego zarządzania przedsięwzięciami informatycznymi, stosowanego do wspomagania wytwarzania systemów opartych na wiedzy. Proponowany model służy w szczególności do zarządzania zmianami finansowania i czasu realizacji projektów dotyczących m.in. systemów wykorzystywanych w (inżynierii) ochronie środowiska. Struktura tego modelu zasadza się na teorii systemów...
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Knowledge management and fuzzy modelling in software engineering
PublicationPraca zawiera rozdział poświecony problematyce budowy systemów z bazami wiedzy dla wspomagania procesów zarządzania. W rozdziale tym przedstawiono metody budowy systemów dla potrzeb zarządzania koncentrując uwagę na systemach opartych na wiedzy. Następnie omówiono możliwości zastosowania teorii zbiorów rozmytych do modelowania wiedzy. Na zakończenie przedstawiono przykład wykorzystania zbiorów rozmytych i systemów opartych na wiedzy...
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Study of the atomic structure and morphology of the Pt3Co nanocatalyst
PublicationThe local structure and chemical disorder of a commercially available Pt3Co nanocatalyst supported on high surface area carbon were investigated. High-quality XAFS spectra were collected at the ELETTRA synchrotron XAFS 11.1 beamline. XAFS spectra analysis have been performed accounting for the reduction of the coordination number and degeneracy of three-body configurations, resulting from transmission electron microscopy (TEM)...
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The structure of the control system for a dynamically positioned ship
PublicationThe article discusses functions and tasks of dynamic positioning (DP) systems for ships. The analysed issues include ship steering, in particular stabilisation of ship position and direction of motion (real course) at low manoeuvring speeds, and commonly used DP ship models. Requirements imposed by classification societies on DP ships are quoted. A multi-layer structure of the DP control system is presented, with special attention...
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Antimony substituted lanthanum orthoniobate proton conductor – structure and electronic properties.
PublicationX‐ray and neutron diffraction have been utilized to analyze the crystalline and electronic structure of lanthanum orthoniobate substituted by antimony. Using X‐ray absorption spectroscopy and photoelectron spectroscopy, changes in the electronic structure of the material upon substitution have been analyzed. The structural transition temperature between fergusonite and scheelite phases for 30 mol% antimony substitution was found...
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The synthesis and structure of a potential immunosuppressant: N-mycophenoyl malonic acid dimethyl ester
PublicationThe synthesis of a potential immunosuppressant, i.e. dimethyl ester of N-mycophenoyl malonic acid was optimized in the reaction of mycophenolic acid (MPA) with amino malonic dimethyl ester in the presence of propanephosphonic anhydride (T3P) as a coupling reagent. The structural properties of the obtained MPA derivative were investigated by NMR, MS and single crystal X-ray diffraction methods. Theoretical considerations of conformational...
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Quantum structure in competing lizard communities
PublicationAlmost two decades of research on applications of the mathematical formalism of quantum theory as a modeling tool in domains different from the micro-world has given rise to many successful applications in situations related to human behavior and thought, more specifically in cognitive processes of decision-making and the ways concepts are combined into sentences. In this article, we extend this approach to animal behavior, showing...
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Changes in the structure of Armenia’s labour resources between 1993 and 2020
PublicationThe article characterises the structure of Armenia’s labour resources in the period between1993 and 2020. It aims to assess the changes on the Armenian labour market by means of a deductive analysis of historical data and observation of changes in the structure of resources based on generally available macroeconomic data. The authors evaluate these processes against the background of demographic and economic changes, by presenting...
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Impact of AlphaFold on structure prediction of protein complexes: The CASP15‐CAPRI experiment
PublicationWe present the results for CAPRI Round 54, the 5th joint CASP-CAPRI protein assembly prediction challenge. The Round offered 37 targets, including 14 homodimers, 3 homo-trimers, 13 heterodimers including 3 antibody–antigen complexes, and 7 large assemblies. On average 70 CASP and CAPRI predictor groups, including more than 20 automatics servers, submitted models for each target. A total of 21 941 models submitted by these groups...
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Fundamental Characterization, Photophysics and Photocatalysis of a Base Metal Iron(II)‐Cobalt(III) Dyad
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The Tribological, Physico-Chemical and Rheological Properties of Lubricating Grease Produced on Epoxy Resin Base
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Visualization and quantification of lab vibratory compacting process for aggregate base materials using accelerometer
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Synthesis, coordination properties and biological activity of vanadium complexes with hydrazone Schiff base ligands
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Endogenous oxidative DNA base modifications analysed with repair enzymes and GC/MS technique
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The use of modified vegetable oil from Crambe abyssinica as a lubricant base for the food industry
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Ensemble Online Classifier Based on the One-Class Base Classifiers for Mining Data Streams
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Monomeric Triphosphinoboranes: Intramolecular Lewis Acid–Base Interactions between Boron and Phosphorus Atoms
PublicationHerein, we present the synthesis of the first fully characterized monomeric triphosphinoboranes. The simple reaction of boron tribromide with three equivalents of bulky lithium phosphide tBu2PLi yielded triphosphinoborane (tBu2P)3B. Triphosphinoboranes with diversified phosphanyl substituents were obtained via a two-step reaction, in which isolable bromodiphosphinoborane (tBu2P)2BBr is first formed and then reacts with one equivalent...
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Sea bottom structure investigation by means of acoustic methods
PublicationThe main aim of the paper is the result of experimental investigations of the seabed in the Gulf of Gdańsk arried out using parametric echosounder as a main measuring tool. Examination of the surface's upper layer of the seabed, especially is acoustic properties, reflecting most often transsmision and reflection properties of the incident elastic wave, could be a valuable material for determination of the stratification, and the...