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Search results for: GLOBALNA EMISJA
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Macierzowy opis okretowego środowiska elektromagnetycznego
PublicationW artykule poruszono problemy zwiazane z analizowaniem stanu kompatybilności elektromagnetycznej systemów i urzadzeń okretowych. Scharakteryzowano i opisano zagrożenia w postaci źródeł zaburzeń występujące w okrętowym środowisku elektromagnetycznym, mogace wpływać na bezpieczeństwo okrętu i załogi. Z punktu widzenia ograniczenia emisji e-m omówiono rolę struktur okrętowych. Na podstawie analizy źródeł emisji pola elektromagnetycznego...
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Socioeconomic consequences of mercury use and pollution
PublicationW przeszłości działalność ludzka powodowała emisje rtęci do biosfery bez większego zainteresowania się skutkami tej emisji dla zdrowia ludzi i środowiska. W pracy przedstawiono różne drogi narażenia na rtęć ludzi i środowiska. Konsumpcja ryb jest główną drogą narażenia na działanie metylowych związków rtęci. Ludzie narażeni są również na wdychanie dużych ilości gazowej rtęci w formie elementarnej. Proponuje się aby analizować kompletny...
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[W] : Społeczna rola szkolnictwa wyższego i jego misja publiczna w perspektywie dekady 2010-2020 - Janina Jóźwiak i Roman Z. Morawski. - [raport opracowany na podstawie ekspertyzy]
PublicationW ekspertyzach podjęto dwa kluczowe zagadnienia: doskonalenia jakości zarządzania uczelnią oraz społecznej odpowiedzialności uczelni jako instytucji służącej otoczeniu. [1.]W opracowaniach dotyczących jakości przedstawiono różne postrzeganie jakości na gruncie szkoły wyższej, podkreślona znaczeniu budowania kultury jakości uczelni opierającej się na doskonaleniu kultury organizacji, budowaniu zaufania i doskonaleniu komunikacji....
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Assessment of the Global and Regional Land Hydrosphere and Its Impact on the Balance of the Geophysical Excitation Function of Polar Motion
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EGATEC: A new high-resolution engineering model of the global atmospheric electric circuit—Currents in the lower atmosphere
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Three-Dimensional Echocardiography and Global Longitudinal Strain in Follow-Up After Multisystem Inflammatory Syndrome in Children
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Amplifying dementia as a global public health problem: A cross-country comparison of the impact of COVID-19 pandemic
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Analysis of positioning methods using Global Navigation Satellite Systems (GNSS) in Polish State Railways (PKP)
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Analyzing Wind Energy Potential Using Efficient Global Optimization: A Case Study for the City Gdańsk in Poland
PublicationWind energy (WE), which is one of the renewable energy (RE) sources for generating electricity, has been making a significant contribution to obtaining clean and green energy in recent years. Fitting an appropriate statistical distribution to the wind speed (WS) data is crucial in analyzing and estimating WE potential. Once the best suitable statistical distribution for WS data is determined, WE potential and potential yield could...
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Low-Cost Quasi-Global Optimization of Expensive Electromagnetic Simulation Models by Inverse Surrogates and Response Features
PublicationConceptual design of contemporary high-frequency structures is typically followed by a careful tuning of their parameters, predominantly the geometry ones. The process aims at improving the relevant performance figures, and may be quite expensive. The reason is that conventional design methods, e.g., based on analytical or equivalent network models, often only yield rough initial designs. This is especially the case for miniaturized...
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Automated Parameter Determination for Horizontal Curves for the Purposes of Road Safety Models with the Use of the Global Positioning System
PublicationThis paper presents the results of research conducted to develop an automated system capable of determining parameters for horizontal curves. The system presented in this article could calculate the actual course of a road by means of a two-stage positioning of recorded points along the road. In the first stage, measurements were taken with a Real-Time Network (RTN) receiver installed in a research vehicle. In the second stage,...
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Wage response to global production links: evidence for workers from 28 European countries (2005–2014)
PublicationUsing rich individual-level data on workers from 28 European countries, this study provides the first so extensive cross-country assessment of wage response to global production links within GVC in the period 2005–2014. Unlike the other studies, the authors (i) address the importance of backward linkages in globally integrated production structures (capturing imports of goods and services needed in any stage of the production of...
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Analysis of positioning methods using Global Navigation Satellite Systems (GNSS) in Polish State Railways (PKP)
PublicationEach year, global navigation satellite systems (GNSS) improve their accuracy, availability, continuity, integrity, and reliability. Due to these continual improvements, the systems are increasingly used in various modes of transport, including rail transport, the subject of this publication. GNSS are used for rail passenger information, rail traffic management, and rail traffic control. These applications differ in the positioning...
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On my way to global science - 1933-2015 memoirs". A volume of memoirs by professor Wiesław Maria Grudzewski
PublicationI wish to express my graditude for the oportunity to read excellent on the life and academic work of Professor Grudzewski, and outstanding scientist and unquestioned authority on economic sciences in the area of management science. Professor Grudzewski had an influence on the events presented in his memoirs through his acquaintances and associates.
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Machine-Learning-Based Global Optimization of Microwave Passives with Variable-Fidelity EM Models and Response Features
PublicationMaximizing microwave passive component performance demands precise parameter tuning, particularly as modern circuits grow increasingly intricate. Yet, achieving this often requires a comprehensive approach due to their complex geometries and miniaturized structures. However, the computational burden of optimizing these components via full-wave electromagnetic (EM) simulations is substantial. EM analysis remains crucial for circuit...
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Joint foreign ownership and global value chains effects on productivity: a comparison of firms from Poland and Germany
PublicationPurpose The study aims to examine the joint effects of foreign ownership (FO) and involvement in global value chains (GVCs) on the productivity performance of firms from a catching-up country (Poland) and a leader economy (Germany). Design/methodology/approach The authors use micro-level data on firms combined with several sector-level GVC participation measures. The authors investigate whether the link between productivity and...
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Efficient Simulation-Based Global Antenna Optimization Using Characteristic Point Method and Nature-Inspired Metaheuristics
PublicationAntenna structures are designed nowadays to fulfil rigorous demands, including multi-band operation, where the center frequencies need to be precisely allocated at the assumed targets while improving other features, such as impedance matching. Achieving this requires simultaneous optimization of antenna geometry parameters. When considering multimodal problems or if a reasonable initial design is not at hand, one needs to rely...
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Analytical studies on the environmental state of the Svalbard archipelago - critical source of information about anthropogenic global impact
PublicationThe Svalbard archipelago differs from other polar regions due to its specific environmental conditions and geographic location which make the area gather pollution from long-range transport. Due to the recent development in analytical techniques it is possible to determine the concentration of pollutants at the level present there. This paper collates and discusses the information from the literature about: pollutants present in...
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Investigations of local/global buckling of cylindrical metal silos with corrugated sheets and open-sectional column profiles
PublicationArtykuł zajmuje się problemem lokalnego/globalnego wyboczenia w cylindrycznych metalowych silosach z blachy falistej z otwartymi cienkościennymi profilami słupowymi. Obliczenia wykonano w ramach liniowej teorii bifurkacji stosując metodę elementów skończonych w programie ABAQUS. Zbadano obszernie wpływ różnych parametrów (średnica i wysokość silosów, grubość blachy falistej, wielkość fali blachy, rozstaw słupów, przekrój słupów)...
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Mechaniczny efekt Barkhausena, właściwości oraz wykorzystanie do wyznaczania funkcji rozkładu naprężeń wewnętrznych
PublicationDysertacja dotyczy zjawiska mechanicznego efektu Barkhausena (MeBN) i jego wykorzystania do wyznaczania funkcji rozkładu naprężeń wewnętrznych, N(σ), w stalach ferromagnetycznych. MeBN jest to zjawisko indukowania impulsów napięciowych w cewce stykającej się z lub nawiniętej na ferromagnetyk poddany działaniu zmiennego naprężenia. Jest to efekt reorganizacji struktury magnetycznej pod wpływem naprężenia, podczas którego granice...
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Przyszłość fotowoltaiki – czy zaleje nas fala odpadów?
PublicationRozwój fotowoltaiki na świecie utrzymuje się przez ostatnie 40 lat na bardzo wysokim, 40-procentowym wzroście rok-do-roku. Również w Polsce obserwujemy od kilku lat rosnące zainteresowanie, zwłaszcza instalacjami prosumenckimi, głównie dzięki licznym programom wspierającym inwestycje. Znaczny udział systemów fotowoltaicznych w generowaniu energii elektrycznej na całym świecie przynosi niewątpliwe korzyści dla środowiska naturalnego,...
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Comparison of properties of magnetoacoustic emission and mechanical Barkhausen effects for P91 steel after plastic flow and creep
PublicationW artykule przedstawiono wyniki pogłębionej analizy sygnału szumowego efektu Barkhausena dla próbek ze stali krzemowej Fe-2%Si po deformacji plastycznej. Badane były próbki po walcowaniu na zimno powodującym odkształcenie względne w zakresie do 8%. Pierwsze podejście polegało na analizie w dziedzinie czasu widma badanego sygnału. Analiza ta została uzupełniona o analizę liczby zliczeń impulsów w funkcji napięcia progowego, zarówno...
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Book review: John M Hagedorn (ed.), Gangs in the Global City: Alternatives to Traditional CriminologyHagedornJohn M (ed.), Gangs in the Global City: Alternatives to Traditional Criminology, University of Illinois Press: Urbana, 2007; 320 pp.: ISBN 9780252073373, US$28.00
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O (bez)skuteczności prawa polskiego wobec antropogenicznych zanieczyszczeń światłem sztucznym (ang. man-made light pollution)
PublicationPrzepisy obowiązującego prawa polskiego nie przewidują skutecznej regulacji w zakresie przeciwdziałania antropogenicznym zanieczyszczeniom światła sztucznego. Określone zjawisko nie jest kwalifikowane do „zanieczyszczeń”, o których mowa w ustawie - Prawo ochrony środowiska, zaś „emisja sztucznego światła” nie mieści się w pojęciu „emisji” uregulowanym w tej ustawie. Zważywszy na negatywne skutki zanieczyszczeń światłem sztucznym...
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Outcomes Following Radiofrequency Renal Denervation According to Antihypertensive Medications: Subgroup Analysis of the Global SYMPLICITY Registry DEFINE
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Environmental emission, fate and transformation of microplastics in biotic and abiotic compartments: Global status, recent advances and future perspectives
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Analytical studies on the environmental state of the Svalbard Archipelago provide a critical source of information about anthropogenic global impact
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Global EM-Driven Optimization of Multi-Band Antennas Using Knowledge-Based Inverse Response-Feature Surrogates
PublicationElectromagnetic simulation tools have been playing an increasing role in the design of contemporary antenna structures. The employment of electromagnetic analysis ensures reliability of evaluating antenna characteristics but also incurs considerable computational expenses whenever massive simulations are involved (e.g., parametric optimization, uncertainty quantification). This high cost is the most serious bottleneck of simulation-driven...
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Central and Eastern European States from an International Perspective: Economic Potential and Paths of Participation in Global Value Chains
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Towards the industry 4.0: Have ICT services improved the position of Central and Eastern Europe in global production linkages?
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Global variation in postoperative mortality and complications after cancer surgery: a multicentre, prospective cohort study in 82 countries
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Expedited Feature-Based Quasi-Global Optimization of Multi-Band Antenna Input Characteristics with Jacobian Variability Tracking
PublicationDesign of modern antennas relies—for reliability reasons—on full-wave electromagnetic simulation tools. In addition, increasingly stringent specifications pertaining to electrical and field performance, growing complexity of antenna topologies, along with the necessity for handling multiple objectives, make numerical optimization of antenna geometry parameters a highly recommended design procedure. Conventional algorithms, particularly...
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The EU European contribution to global coastal zone research: an ELOISE (European Land-Ocean Interaction Studies) project
PublicationW artykule omówiono strukturę oraz cele i zadania programu ELOISE, finansowanego przez Wspólnotę Europejską. W ramach projektu realizowane są 4 główne zadania badawcze:1. cykle biochemiczne i strumienie zanieczyszczeń,2. struktura i funkcjonowanie ekosystemów,3. modelowanie i zarządzanie informacjami o środowisku,4. integracja nauk przyrodniczych i socjoekonomicznych.
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On Memory-Based Precise Calibration of Cost-Efficient NO2 Sensor Using Artificial Intelligence and Global Response Correction
PublicationNitrogen dioxide (NO2) is a prevalent air pollutant, particularly abundant in densely populated urban regions. Given its harmful impact on health and the environment, precise real-time monitoring of NO2 concentration is crucial, particularly for devising and executing risk mitigation strategies. However, achieving precise measurements of NO2 is challenging due to the need for expensive and cumbersome equipment. This has spurred...
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Spatio-Temporal Validation of GNSS-Derived Global Ionosphere Maps Using 16 Years of Jason Satellites Observations
PublicationExisting ionospheric models perform very well in mapping the calm state of the ionosphere. However, the problem is accurately determining the total electron content (TEC) for disturbed days. Knowledge of the exact electron density is essential for single−frequency receivers, which cannot eliminate the ionospheric delay. This study aims to investigate temporal and spatial variability in the distribution of TEC based on differences...
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Wpływ rozłożenia elementów przetwornicy ST1S10PUR na rozkład temperatury
PublicationW referacie przedstawiono wpływ zmian rozłożenia elementów w przetwornicy ST1S10PUR o topologii typu Buck na emisję termiczną z układu. Wpływ był analizowany na przykładzie wprowadzania drobnych zmian w rozkładzie ścieżek mozaiki połączeń we wszystkich rozpatrywanych konfiguracjach. Zastosowane zmiany w topologii połączeń pozwalają na oszacowanie rzeczywistych parametrów przetwornicy oraz pozwalają na ocenę ich wpływu na charakterystyki...
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Wpływ temperatury rozruchu silnika na czas pracy bez uwzględnienia w sterowaniu sygnału z czujnika stężenia tlenu
PublicationW pracy omówiono wybrane zagadnienia związane z wpływem temperatury rozruchu silnika spalinowego na emisję związków toksycznych w spalinach. Jednym z czynników powodujących wzrost emisji związków toksycznych podczas zimnego rozruchu jest sterowanie pracą silnika spalinowego bez udziału sygnału z czujnika stężenia tlenu. W pracy przedstawiono wyniki badań wpływu temperatury na czas pracy bez uwzględniania tego ważnego w sterowaniu...
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Analysis and assessment of the acoustic emission suitability for determination of the energy states of a tribological system in the form of a four-ball tester friction node
PublicationThe present operating safety and cost reduction requirements of the compression ignition engines make it necessary to search for new methods of detecting their defects, e.g. by the analysis of acoustic emission signals coming from the slide bearings. The paper presents non-destructive measurements of acoustic emission (AE) in order to obtain information on the processes taking place in a tribological system under the continuously...
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A novel chemiluminescent immunoassay based on original acridinium ester labels as better solution for diagnosis of human toxoplasmosis than conventional ELISA test
PublicationToxoplasma gondii infection is one of the most common human zoonosis. Laboratory diagnosis of this disease is mainly based on the results of serological methods detecting specific antibodies in the patient’s sera. In this study we aimed to evaluate the performance of a chemiluminescence immunoassay (CLIA) based on the use of a novel immunochemical reagent in the form of the conjugate of original acridinium label (AL) attached to...
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New model simulations of the global atmospheric electric circuit driven by thunderstorms and electrified shower clouds: The roles of lightning and sprites
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A systematic review on global pollution status of particulate matter-associated potential toxic elements and health perspectives in urban environment
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Crystal Structure Prediction by Global Optimization as a Tool for Evaluating Potentials: Role of the Dipole Moment Correction Term in Successful Predictions
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Prediction of protein structure using a knowledge-based off-lattice united-residue force field and global optimization methods
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ICT for Global Competitiveness and Economic Growth in Emerging Economies: Economic, Cultural, and Social Innovations for Human Capital in Transition Economies
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Impact of digital technologies on reliability of risk forecasting models - case study of enterprises in three global financial market regions
PublicationThis chapter focuses on the evaluation of impact of ICT on reliability of financial risk forecasting models. Presented study shows how the development of ICT can improve the effectiveness of such models. Determining a firm’s financial risk is one of the most interesting topics for investors and decision-makers. The multifaceted goal of the presented research is to separately estimate five traditional statistical and five soft computing...
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A New Era Is Beginning in Central and Eastern Europe: Information and Communication Technology Services Exceed Manufacturing in the Global Production Chain
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Relative quantification of pork and beef in meat products using global and species-specific peptide markers for the authentication of meat composition
PublicationWe used global and species-specific peptide markers for a relative quantitative determination of pork and beef in raw and processed meat products made of the two meat species. Four groups of products were prepared (i.e., minced raw meats, sausages, raw and fried burgers) in order to represent products with different extents of food processing. In each group, the products varied in the pork/beef proportions. All products were analysed...
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Global 30-day outcomes after bariatric surgery during the COVID-19 pandemic (GENEVA): an international cohort study
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Local and global response of sandwich beams made of GFRP facings and PET foam core in three point bending test
PublicationIn the paper behaviour of laminated sandwich beams (FRP face sheet – PET foam core – FRP face sheet) subjected to three point bending is studied. The paper aim is to find practical descriptions enabling effective and accurate estimation of the elastic response, damage and failure of the beams, basing on experiments and static calculations. Therefore a number of tests are described, that were done on laminated coupons and foam specimens...
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Exploring avian exposure to parent polycyclic aromatic hydrocarbons (PAHs): Using the common eider Somateria mollissima in a global context
PublicationCompared to other organic contaminants, birds are rarely studied for their exposure to polycyclic aromatic hydrocarbons (PAHs), mainly due to their effective metabolization of parent PAHs. However, as some studies suggest, exposure to PAHs may result in adverse health effects including decreased survival, especially following oil spills. In the present study, we analyzed samples from a sea duck, the common eider Somateria mollissima...