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Search results for: LOGIKA MEBN
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Mercury concentration and the absolute and relative sizes of the internal organs in cormorants Phalacrocorax carbo (L. 1758) from the breeding colony by the Vistula Lagoon (Poland)
PublicationThis work analyses the effect of mercury on the condition of cormorants (Phalacrocorax carbo) from an extensive breeding colony in northern Poland, the largest in Europe. A total of 55 birds (44 adults and 11 immature) were obtained. Total mercury (Hg) concentrations were measured in the liver, kidneys, breast muscles, heart, gullet (oesophagus), stomach, intestines, trachea, lungs and eyeballs. The total body mass (TBM) and empty...
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The work-family interface: Job demands, work engagement and turnover intentions of Polish nurses
PublicationA conflict between one's professional life and one's family life may lead to lower well-being both at work and home. Most nurses are women who have traditionally reconciled their professional life with family life. One aim of this study was to examine the relationships between the work-family conflict (WFC),the family-work conflict (FWC), and the perception of job demands (quantitative workload and interpersonal conflicts at work)....
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Daylight Appraisal Classes For Achitecture Students A Survey Combined With A Practical Assessment For Educational Training Recommendations
PublicationThe main objectives of this article are: (i) to present the relations between architecture students' subjective assessment of daylight in classrooms and the objective evaluation of daylit conditions using daylight simulations tools, (ii) to formulate guidelines and recommendations on daylight appraisal methods and tools which may be useful in architectural training. The methodology used includes an evaluation of the results of...
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Deep learning for ultra-fast and high precision screening of energy materials
PublicationSemiconductor materials for energy storage are the core and foundation of modern information society and play important roles in photovoltaic system, integrated circuit, spacecraft technology, lighting applications, and other fields. Unfortunately, due to the long experiment period and high calculation cost, the high-precision band gap (the basic characteristic parameter) of semiconductor is difficult to obtain, which hinders the...
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Statistics 2022_23
e-Learning Courses1.Elements of probability. The axioms of the probability theory 2. Random variables and their distributions. Discrete and continuous random variables 3. Parameters of random variables: expected value, moments 4. Selected distributions of random variables (Bernoulli, Poison, Gaussian) 5.The distribution in the sample. Visualisation by histograms 6. Measures of statistical location: arithmetic mean, median, quantiles. 7. Measures...
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Monika Bizewska dr
Peopledr Monika Bizewska, doktor nauk humanistycznych Uniwersytetu Gdańskiego. Doktorat pt. „Państwo Środka w kulturze materialnej i w piśmiennictwie polskiego oświecenia” obroniła pod nazwiskiem Kwietniewska w 2009 roku. Od stycznia 2019 roku zatrudniona w Biurze Politechniki Otwartej na stanowisku kierownika jednostki realizującej zadania związane z popularyzacją nauki oraz organizacją wydarzeń edukacyjno-kulturalnych. Na pełnym etacie,...
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Urządzenie do nauki chodzenia i pływania
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Experiment-aided virtual prototyping to minimize tool-workpiece vibration during boring of large-sized structures
PublicationThe paper presents the author's method of solving the problems of vi-bration suppression during boring of large-sized workpieces by means of an in-novative method of adjusting the rotational speed of the boring bar. It consists in selecting the spindle speed in accordance with the results of the cutting process simulation. The method includes identification of the model of the finite element method of the boring bar. The Root Mean...
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Brain perfusion imaging with the use of parametric modelling basing on DSC-MRI data
PublicationW pracy do estymacji parametrów perfuzji mózgu: przepływu krwi mózgowej (cerebral blood flow, CBF), objętości krwi mózgowej (cerebral blood volume, CBV) oraz średniego czasu przejścia (mean transit time, MTT) wykorzystano pomiary DSC-MRI (Dynamic Susceptibility Contrast Magnetic Resonance Imaging). W modelowaniu danych MRI zastoswoano model trzykompartmentowy. Przedstawiono i porównano dwa podejścia do identyfikacji modelu różniące...
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2-Methylphenyl 2-methoxyacridine-9-carboxylate
PublicationThe title compound, C22H17NO3, crystallizes in the monoclinic space group P21/c with four molecules per unit cell. The molecules are arranged in centrosymmetric pairs, joined via the C and attached H atoms in the meta position relative to the methoxy group. These pairs are bonded in the crystalline phase as a result of non-specific dispersive interactions, and through a network of C—H⋯O interactions involving the non-bonded O...
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Adaptive estimation of the transformer stray capacitances for DC–DC converter modelling
PublicationNew low cost and accurate estimation method of transformer stray capacitances for wide band DC–DC converter modelling and design is proposed. The Wiener filter (WF) method is applied to estimate the transformer impedance – referred to the selected transformer winding configurations. Laboratory tests are used to adapt the filter, that is to find optimal impedance which minimises mean square error between measured, noise perturbed...
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Quasi-discrete modelling of PMSM phase currents in drives with low switching-to-fundamental frequency ratio
PublicationThis study proposes a new quasi-discrete approach to modelling the permanent magnet synchronous motor (PMSM). The quasi-discrete modelling reflects the impact of continuous rotor movement, which takes place during a control cycle, on the shape of motor current waveforms. This provides much improvement in current modelling accuracy under inverter low switching-to-fundamental frequency operation. The proposed approach may be used...
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Karhunen-Loeve-based approach to tracking of rapidly fading wireless communication channels
PublicationWhen parameters of wireless communication channels vary at a fast rate, simple estimation algorithms, such as weighted least squares (WLS) or least mean squares (LMS) algorithms, cannot estimate them with the accuracy needed to secure the reliable operation of the underlying communication systems. In cases like this, the local basis function (LBF) estimation technique can be used instead, significantly increasing the achievable...
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Three-Dimensional Fractography for Conventional and Additive Manufactured Steels After Bending-Torsion Fatigue
PublicationIn this study, fracture surface topography parameters were measured to investigate the effects of multiaxial loading. In order to assess the metrological aspects of fracture for notched specimens made of high-strength steels processed by both conventional and additively manufacturing (AM) techniques, an optical surface profilometer was used. Three bending moment to torsion moment ratios (B/T) were studied, i.e. 2, 1 and 2/3. The...
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Depolarisation Model for a BAN Indoor Scenario
PublicationIn this paper, an analysis of depolarisation in Body Area Networks for Body-to-Infrastructure communications based on a measurement campaign in the 5.8 GHz band in an indoor environment is performed. Measurements were made with an offbody antenna transmitting linearly polarised signals and dualpolarised receiving antennas carried by the user on the body. A Normal Distribution with a mean of 2.0 dB and a standard deviation of 4.3...
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Uncovering the invisible barriers to women’s success
PublicationIn the area of science and higher education, as in business and politics, the job situation of women is improving, and the percentage of women on executive positions is increasing. However, there is still a serious underrepresentation of women in the highest decision-making bodies. Ladies also take part in the strategic institutional events less frequently. There are still serious disproportions in academic and management positions,...
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Monika Skucha mgr inż.
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Performance Assessment of Using Docker for Selected MPI Applications in a Parallel Environment Based on Commodity Hardware
PublicationIn the paper, we perform detailed performance analysis of three parallel MPI applications run in a parallel environment based on commodity hardware, using Docker and bare-metal configurations. The testbed applications are representative of the most typical parallel processing paradigms: master–slave, geometric Single Program Multiple Data (SPMD) as well as divide-and-conquer and feature characteristic computational and communication...
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Analysis of Investments in RES Based on the Example of Photovoltaic Panels in Conditions of Uncertainty and Risk—A Case Study
PublicationThe aim of this study is to examine the profitability of investment in a photovoltaic microinstallation, to analyze the impact of legal changes on its profitability, and to perform a sensitivity analysis of the investment profitability to energy price changes. The novelty of the research applies to the financial analysis of two legal systems of discount called net-metering and net-billing. The two systems and the change in energy...
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Potential of novel atomic emission techniques as a tool for investigation of the possibilities of using industrial waste as additives in construction materials
PublicationNowadays, due to the global ecological crisis and ways to prevent a climate disaster, more and more attention is paid to green techno-logies and green Chemistry, which are part of the so-called “The Green Deal.” The main assumption is the optimization of the processes of producing necessary goods and the implementation of methods of managing postproduction waste in the least environmentally harmful manner. In the presented research,...
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Collaborative urban studios in Poland. Teaching collective problem solving via live projects
PublicationThe requirements of contemporary architectural and urban design practice places a growing importance on the ability to generate new solutions to complex design challenges. Such an approach is particularly relevant in the context of contemporary urban projects in need of urban innovation and socially engaged practice, i.e. urban regeneration or street quality improvement projects. Meaningful involvement in such topics requires a...
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Non-Destructive Assessment of Masonry Pillars using Ultrasonic Tomography
PublicationIn this paper, a condition assessment of masonry pillars is presented. Non-destructive tests were performed on an intact pillar as well as three pillars with internal inclusions in the form of a hole, a steel bar grouted by gypsum mortar, and a steel bar grouted by cement mortar. The inspection utilized ultrasonic stress waves and the reconstruction of the velocity distribution was performed by means of computed tomography. The...
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Relicts of the 16th-century cellar by the St Mary's Church in Gdansk / Relikty piwnicy z XVI w. przy kościele Wniebowzięcia NMP w Gdańsku
PublicationSaint Mary’s church in Gdańsk, one of the largest brick Gothic temples in the World, has got no external chapels – except the House of Councils. Its architectural form, however, is not the result of implementation of one project, but realization of a few transforming concepts. The discovery of the relicts of the 16 th century cellars, located in the corner of the transept and the northern aisle, gives an idea of the process...
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Current trends in analytical strategies for determination of polybrominated diphenyl ethers (PBDEs) in samples with different matrix compositions – Part 1.: Screening of new developments in sample preparation
PublicationPolybrominated diphenyl ethers (PBDEs) are ubiquitous compounds in the environment. Restrictions on the use of PBDEs introduced at the beginning of the 21st century have not eliminated these highly persistent and bioaccumulative compounds from the environment. Despite many existing regulations to control and phase out, extensive research on PBDEs is still necessary to fully evaluate the hazard their create to the environment. In...
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A HISTORICAL BUILDING'S RESTORATION IN THE CONSTRUCTIONAL ASPECT ON THE EXAMPLE OF A BUILDING LOCATED IN POLAND
PublicationObjects of cultural heritage are an extremely important element in the proper functioning of the social life. They provide information on our ancestors' actions, as well as shape our culture and social awareness. It is important for the historical objects to provide those information accurately, that is without any unnecessary human intervention over the years of the monument's existence. However, it is not always possible due...
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DYNAMIC ANALYSIS OF THE RAILWAY BRIDGES IN POLAND WITH REGARDS TO HIGH-SPEED TRAINS PASSAGE ADJUSTMENT
PublicationThe dynamic analysis of the railway bridge in Tczew was carried out in the article as an example of such bridges adaptation suitability to handle high-speed trains. Calculations of railway bridges are greatly complicated and labor-consuming. The bridge model and a rolling stock passage simulation were developed in the SOFISTIK software. Three types of elements were used for the correct mapping of the structure in the calculation...
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KOMPUTEROWE WSPOMAGANIE BUDOWNICTWA PRZY PROJEKTOWANIU SŁUPÓW ŻELBETOWYCH WG EC
PublicationW artykule przedstawiony został autorski program komputerowy służący do projektowania i wymiarowania słupów w konstrukcjach żelbetowych z uwzględnieniem zjawisk wpływających na ich pracę oraz informacji dotyczących projektowania wg EC. Język który posłużył do napisania oprogramowania to środowisko C++. Program przeprowadza użytkownika przez poszczególne etapy wymiarowania: od wprowadzenia podstawowych danych takich jak wymiary,...
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Ultrasonic Tomography of Brick Columns Based on FEM Calculations
PublicationUltrasonic tomography is one of the most developed method of non-destructive testing. Despite being used mainly in medicine, it is becoming more and more popular as a method for monitoring of structural elements. It allows to examine the internal structure and technical condition of the tested element. This paper investigates the influence of crosssectional geometry on an obtained tomographic image. Wave propagation signals were...
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Ikona-jak to sie robi w chicago?
PublicationOpis niezrealizowanego projektu Santiago Calatravy 610 metrowego wysokościowca Chicago Spire.
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Pestycydy w fazie gazowej atmosfery. Metody pobierania, przygotowywania próbek do analizy oraz oznaczenia końcowe
PublicationSzerokie wykorzystywanie pestycydów wpływa na rosnące zanieczyszczenie nie tylko wody i gleby ale również powietrza. Jest to wywołane unoszeniem się pestycydów podczas zastosowania (rozpylania) oraz emisją poaplikacyjną. Wśród metod służących do izolacji i wzbogacania analitów z atmosfery najczęstszym postępowaniem jest sorpcja na stałym sorbencie (PUF, SPE, filtry) natomiast do ekstrakcji wzbogaconych analitów najczęściej stosuje...
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Architektura w czasach kryzysu
PublicationArtykuł opisujący wpływ kryzysu na rynkach finansowych w 2009 roku na praktykę światowych pracowni architektonicznych.
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La Defense od nowa
PublicationOpis najnowszych propozycji związanym z planami przebudowy dzielnicy biurowej La Defense w Paryżu.
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Gondolą do Hollywood: opinie
PublicationOpinia dotycząca XI Biennale Architektury w Wenecji
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Polscy architekci na Zielonej Wyspie
PublicationArtykuł podsumowujący pierwsze doświadczenia związane z pracą architekta w Irlandii - możliwościami zatrudnienia, uznawalnością polskich kwalifikacji zawodowych oraz warunkami pracy.
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Zielone stolice Europy
PublicationPodsumowanie nowej inicjatywy Unii Europejskiej - ''Zielone Stolice Europy'' (European Green Capital), polegającej na wyróżnieniu miast -liderów we wdrażaniu kompleksowej polityki ochrony środowiska.
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The role of reporting social and environmental impact on Polish universities
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Selection of Sorbents for Removing Operating Fluids at the Vehicle Dismantling Station
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Analysis of the effect of mass events on car traffic in the city in the daily interval
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Using the social return on investment (SROI) as a measure of the effectiveness of social innovation projects implemented under public policies
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Rozwój podmiotów ekonomii społecznej w Polsce ze szczególnym uwzględnieniem regionu opolskiego – uwarunkowania instytucjonalnoorganizacyjne
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Outdoor Advertising in Public Space and its Legal System in Poland over the Centuries
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Financing Housing Support Programs in Poland in the Light of National Housing Resources
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The Effect of the Body Mass Indexes of Young Healthy Individuals on the Glyacemic Indexes of Traditional and Modified Vegetarian Meals
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Influence of sulphate reducing bacteria on water quality in water network
PublicationW pracy zbadano wody podziemne oraz wody rozprowadzane w sieci wodociągowej pod kątem obecności bakterii redukujących siarczany (BRS). Stwierdzono, że BRS były obecne zarówno w wodzie surowej, a także w wodzie uzdatnionej oraz w przewodach sieci wodociągowej.
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Metody oznaczania pestycydów w atmosferze w fazie gazowej i w pyle zawieszonym
PublicationW przypadku analizy próbek powietrza konieczne jest zastosowanie aparatury oddzielającej fazę gazową od cząstek stałych. Możliwe jest wtedy oznaczanie pestycydów osobno w obu fazach (w fazie gazowej oraz w pyle zawieszonym). Pierwszym etapem analizy w przypadku oznaczania pestycydów w powietrzu jest izolacja pestycydów z matrycy wraz ze wzbogacaniem analitów, a następnie ekstrakcja i oczyszczanie ekstraktu połączone najczęściej...
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Sea surface temperature retrieval from MSG/SEVIRI data in the Baltic Sea area
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ROZKŁAD TEMPERATURY W WIELOSKŁADNIKOWYM WIELOWARSTWOWYM KOMPOZYCIE Z POPRZECZNĄ GRADACJĄ WŁAŚCIWOŚCI EFEKTYWNYCH
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Distribution of Temperature in Multicomponent Multilayered Composites
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Właściwości mechaniczne odlewniczych brązów niklowo-aluminiowych w zależności od grubości skrzydła śruby okrętowej
PublicationPodczas eksploatacji statku może zaistnieć konieczność naprawy śruby napędowej. W przypadku braku atestu skład chemiczny materiału nie jest znany. Sytuacja taka może być problemem znaczącym, gdyż technologia naprawy jest związana z materiałem śruby, ze względu na różne temperatury podgrzewania wstępnego dla różnych kategorii stopów miedzi. W takim wypadku istotne jest określenie właściwości mechanicznych na podstawie składu chemicznego...
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Wizja bez programu - gdańska Droga do Wolności
PublicationW dniach 2-3 sierpnia 2005r. odbyło się w Gdańskim Dworze Artusa Międzynarodowe Seminarium pt. "Europejskie Centrum Solidarności", zorganizowane przez Prezydenta RP Lecha Wałęsę i Prezydenta Miasta Gdańska Pawła Adamowicza. Celem seminarium było zaprezentowanie przez zaproszonych z Europy architektów różnorodnych wizji urbanistyczno - architektonicznych Gdańskiej Drogi do Wolności. Wizje te będą stanowić inspiracje dla organizatorów...