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Search results for: CDP
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Removal and retention of selected heavy metals in components of a hybrid wetland system
PublicationProwadzone badania z określeniem możliwosci retencjonowania metali ciężkichw systemie hybrydowej oczyszczalni hydrofitowej. Wykazano, że znaczna rete- ncja tych pierwiastków następowała w wyniku sorpcji. Przeprowadzona ekstra- kcyjna analiza sekwencyjna wykazała, że Pb2+ i Cu2+ zostały zakumulowane w połączeniach trwałych i nie powinny ulegać wymywaniu z oczyszczalni. Nato- miast Cd2+ wskutek sorpcji we frakcjach labilnych może...
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NEW TRENDS IN DEVELOPMENT OF ORC'S FOR MICROPOWER GENERATION
PublicationIn the paper, new trends in development of micropower generation of heat and electricity are presented. New type of CHP for domestic usage is developed in the Institute of Fluid-Flow Machinery PAS and methods of its design are presented. The most promising trends in equipment of ORC cycle for this purpose were discussed. Main attention was focused on micro-heat exchangers design based on micro-channels and micro-jets. In our opinion...
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Field-induced suppression of charge density wave in GdNiC2
PublicationWe report the specific heat, magnetic, magnetotransport, and galvanomagnetic properties of polycrystalline GdNiC 2 . In the intermediate temperature region above T N = 20 K, we observe large negative magnetoresistance due to Zeeman splitting of the electronic bands and partial destruction of a charge density wave ground state. Our magnetoresistance and Hall measurements show that at low temperatures a magnetic field-induced transformation from...
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The condition of economies. Do most valuable global brands matter?
PublicationResearch background: Brands are considered to be the most valuable asset of a company. Some of them achieve spectacular global results. The significance of global brands is proved by the fact that their value is often greater than the sum of all company’s net assets. Purpose of the article: The aim of this article is to highlight that brand value does not only create company’s value, but also leverages economies. The Authors claim...
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Precursor T-cell lymphoblastic leukemia - Male, 4 - Tissue image [6030730027631481]
Open Research DataThis is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: VS200 Olympus slide scanner (20x magnification) and saved to DICOM format.
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Precursor T-cell lymphoblastic leukemia - Male, 4 - Tissue image [6030730027633261]
Open Research DataThis is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: VS200 Olympus slide scanner (20x magnification) and saved to DICOM format.
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Precursor T-cell lymphoblastic leukemia - Male, 4 - Tissue image [7040247104964671]
Open Research DataThis is the histopathological image of LYMPH NODES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: VS200 Olympus slide scanner (20x magnification) and saved to DICOM format.
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Łukasz Piszczyk dr hab. inż.
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Koncepcja i symulacja polowa generatora o zmiennej częstotliwości. Zastosowanie w autonomicznych systemach elektroenergetycznych = Conception and field simulations of a variable frequency generator. Application for autonomous power generation system
PublicationStreszczenie angielskie: This paper covers a conception and simulation results for a brushless synchronous generator working with variable speed in an autonomous energy generation system (e.g. airplane power grid, hybrid vehicle, micro-CHP). The papers has two parts: presentation of the generator conception used in modern autonomous energy generation systems, and simulation results using filed model elaborated in Flux2D software....
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Contextual Knowledge to Enhance Workplace Hazard Recognition and Interpretation in a Cognitive Vision Platform
PublicationThe combination of vision and sensor data together with the resulting necessity for formal representations builds a central component of an autonomous Cyber Physical System for detection and tracking of laborers in workplaces environments. This system must be adaptable and perceive the environment as automatically as possible, performing in a variety of plants and scenes without the necessity of recoding the application for each...
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PARAMETERS OF THE ELECTROPHORETIC DEPOSITION PROCESS AND ITS INFLUENCE ON THE MORPHOLOGY OF HYDROXYAPATITE COATINGS. REVIEW
PublicationMetallic materials intended for bone implants should exhibit not only appropriate mechanical properties, but also high biocompatibility. The surface treatment modifications, for example acidic treatment, laser treatment, ion implantation and deposition of highly biocompatible coatings, are practiced. One of the most popular methods of surface modification is to deposit hydroxyapatite (HAp) coatings. HAp naturally occurs in human...
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Analysis of IMS/NGN call processing performance using G/G/1 queuing systems approximations
PublicationThe paper concerns the Next Generation Network (NGN), which is standardized for distribution of multimedia services based on the IP Multimedia Subsystem (IMS). To guarantee quality, accurate traffic models of IMS/NGN should be proposed. In the paper we compare results obtained with our analytical and simulation model of a single IMS/NGN domain, where various queuing systems are used in the analytical model (M/G/1 and approximations...
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Synthesis and application of tetrazole di and triamide derivatives in ion-selective membrane electrodes
PublicationA number of tetrazole diamides and triamides have been synthesized and applied as ion carries in ion-selective membrane electrodes. Their selectivity and sensitivity were studied towards alkali, alkaline earth, transition and heavy metal cations. it was found that membranes doped with 3 and 2-nitrophenyl octyl ether exhibit an almost theoretial Nernstian response for NH+ over relatively wide concentration range. Elestrodes with...
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Cryptocurrencies as a speculative asset. How much uncertainty is included in cryptocurrency price?
PublicationThe aim of this paper is to examine the relationship between uncertainty indices (Geopolitical Uncertainty Index and Global Economic Policy Uncertainty Index) and cryptocurrencies. In order to conduct research, the authors collected the data on the major cryptocurrencies (Bitcoin, Ethereum, Tether, Dogecoin and USD coin) which account for 78% of the total market cap. Using panel OLS regression, this study finds that Bitcoin...
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twin-crp-pod ULCS Application of hybrid CRP-POD propulsors on ultra large twin screw containerships to increase propulsive efficiency, reduce GHG emissions and improve navigational safety
ProjectsProject realized in Department of Ship Manufacturing Technology, Quality Systems and Materials Science according to MARTERA-2/twin-crp-pod ULCS/1/2020 agreement from 2020-12-21
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Wzrost gospodarczy a zapotrzebowanie na prace - teoria i rzeczywistość gospodarcza Polski w latach 1995-2014
PublicationW części teoretycznej artykułu w pierwszej kolejności przedstawiono makroekonomiczne podstawy zapotrzebowania na pracę w warunkach postępu technicznego oraz zmian kapitału rzeczowego. W następnej kolejności sformułowano założenia dla modelu opisującego zależności pomiędzy stopami wzrostu produktu krajowego i zatrudnienia. W części empirycznej artykułu rozważano wybrane wersje oszacowanego modelu opisujące gospodarkę Polski. Do...
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A robust 18-pulse diode rectifier with coupled reactors
PublicationThe article presents the principle of operation and selected results of simulation and laboratory tests of the 18-pulse rectifier system with coupled reactors and small series active power filter. The presented system makes it possible to reduce, especially in distribution supply networks, undesired higher current harmonics. The 18-pulse nature of operation of the rectifier is reached using a set of coupled three-phase network...
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Wykorzystanie techniki agentowej w planowaniu realizacji grafiku zapotrzebowania spółki obrotu energii elektrycznej
PublicationSpółki zajmujące się hurtowym obrotem energią elektryczną budują portfel zakupów, w celu pokrycia przewidywanego zapotrzebowania odbiorców. Wiąże się to między innymi z ryzykiem wolumenu. W artykule proponuje się, w celu dostarczenia dodatkowych informacji do procesu budowania portfela, wygenerować zestawy wszystkich zbiorów kontraktów, które spełniają zadane ograniczenia wolumenu. Stosuje się w tym celu technikę agentową do rozwiązania...
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The impact of technological and structural changes in the national economy on the labour-capital relations
PublicationThe aim of the research presented in this paper is to present the relations between labour and capital in the national economy, resulting from technological and structural changes taking place in the years 1991 to 2008. The structure of the paper is as follows. It first presents the functional determinants for the Polish economy in 1991-2008 affecting the phenomenon subject to study. Then it presents the preliminary analysis of...
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Wykorzystanie techniki agentowej w planowaniu realizacji grafiku zapotrzebowania spółki obrotu energii elektrycznej
PublicationSpółki zajmujące się hurtowym obrotem energią elektryczną budują portfel zakupów, w celu pokrycia przewidywanego zapotrzebowania odbiorców. Wiąże się to między innymi z ryzykiem wolumenu. W artykule proponuje się, w celu dostarczenia dodatkowych informacji do procesu budowania portfela, wygenerować zestawy wszystkich zbiorów kontraktów, które spełniają zadane ograniczenia wolumenu. Stosuje się w tym celu technikę agentową do rozwiązania...
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How Does International Competitiveness Affect Economic Development? A Two-Phase Hypothesis
PublicationThis paper analyses the impact of international competitiveness on economic development, based on the World Economic Forum Global Competitiveness Index (GCI) and GDP/capita of 125 countries during the period 2007-2010. The results reveal two phases of the evolution of competitiveness. When GCI < 4.5 (on 1-7 scale), any improvement of a country’s competitiveness affects current development more than future development. When...
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Naprowadzaniei pozycjonowanie obiektów oceanotechnicznych
e-Learning Courseswykonanie DP capability analysis
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Paweł Śliwiński dr hab. inż.
PeopleDiplomas and academic degrees. Training 2017: degree of habilitated doctor;2006: PhD in Technical Sciences. PhD thesis defended with distinction. Gdansk University of Technology, Faculty of Mechanical Engineering.2000: Master of Science. Graduated from the university with distinction. Gdansk University of Technology, Faculty of Mechanical Engineering.1995: Mechanical technician. Graduated from a Technical Secondary School...
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Meningitis, unspecified - Male, 66 - Tissue image [120306300176351]
Open Research DataThis is the histopathological image of BRAIN tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Meningitis, unspecified - Male, 66 - Tissue image [12030630017635961]
Open Research DataThis is the histopathological image of BRAIN tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Meningitis, unspecified - Male, 66 - Tissue image [12030630017637591]
Open Research DataThis is the histopathological image of BRAIN tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Meningitis, unspecified - Male, 66 - Tissue image [1203063001763301]
Open Research DataThis is the histopathological image of BRAIN tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Meningitis, unspecified - Male, 66 - Tissue image [12030630017632581]
Open Research DataThis is the histopathological image of BRAIN tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Całkowite przekroje czynne na rozpraszanie elektronów na drobinach wieloatomowych
PublicationGłównym celem rozprawy doktorskiej było zmierzenie absolutnych całkowitych przekrojów czynnych (TCS) na rozpraszanie elektronów w szerokim zakresie energii (~1-400 eV) dla wybranych drobin: BCl3, B(CD3)3, NF3, N(CH3)3, P(CH3), SO2Cl2, SO2ClF, SF4, c-C2H4O oraz c-C3H6O (dla ośmiu drobin otrzymano całkowite przekroje czynne po raz pierwszy, natomiast dla dwóch pozostałych został znacznie rozszerzony zakres energii dostępnych danych)....
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Evolution of charge density wave order in continuous solid solutions Lu(Ni1-xCox)C2
PublicationPseudo-ternary solid solutions, Lu(Ni1-xCox)C2 (0 ≤ x ≤ 1), were studied by means of powder X-ray diffraction, differential thermal analysis as well as electrical resistivity and heat capacity measurements. The crystal structure of the Lu(Ni1-xCox)C2 series, as investigated by means of X-ray powder diffraction, is of structure type CeNiC2, space group Amm2, Pearson symbol oS8. The structural analysis reveals a non-monotonous evolution,...
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Kncepcja zastosowania klasycznego modelu {Preisacha w opisie histerezy mechanicznej toru kolejowego
PublicationW pracy przedstawiono implementację klasycznego, skalarnego modelu histerezy Preisacha w zastosowaniu do opisu zjawiska histerezy mechanicznej, występującej w torze kolejowym podczas procesu regulacji geometrycznej jego osi (tj. w trakcie przesuwania rusztu torowego w kierunku poprzecznym). Opisano zwięźle założenia teorii Preisacha oraz skalarny model matematyczny histerezy mechanicznej, oparty na rozkładzie statystycznym zmodyfikowanych...
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Investigating the Impact of Curing System on Structure-Property Relationship of Natural Rubber Modified with Brewery By-Product and Ground Tire Rubber
PublicationThe application of wastes as a filler/reinforcement phase in polymers is a new strategy to modify the performance properties and reduce the price of biocomposites. The use of these fillers, coming from agricultural waste (cellulose/lignocellulose-based fillers) and waste rubbers, constitutes a method for the management of post-consumer waste. In this paper, highly-filled biocomposites based on natural rubber (NR) and ground tire...
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Microbial and chemical quality assessment of the small rivers entering the South Baltic. Part I: Case study on the watercourses in the Baltic Sea catchment area
PublicationThe area of the Coastal Landscape Park (CLP) due to its location is extremely attractive touristic area. In the summer season, a significant increase in population density is observed, which influences surface water quality. Large numbers of tourists generate an increased amount of municipal wastewater, being treated in local treatment plants and discharged into rivers and streams. The paper presents preliminary research from summer...
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Gdańskie pola nawadniane ściekami. W: [CD-ROM] Konferencja Naukowo - Tech-niczna ''Przyszłość Wrocławskich Pól Irygacyjnych''. Wrocław 13-14 XI 2003.Wrocław: Miejskie Przeds. Wodociągów i Kanalizacji**2003 s. 1-11, 5 rys.bibliogr. 21 poz.
PublicationOczyszczanie ścieków w środowisku glebowym rozpoczęło sie w Gdańsku w roku1872 i prowadzone było przez ponad 100 lat. Omawia się rozwiązania technicz-ne, obciążenia i zmiany w środowisku glebowym. Rozwiązania gdańskie stały się wzorem dla wielu innych miast, jak Berlin, Brema, Wrocław czy Królewiec. Podaje się przyczyny zmniejszającej się efektywnośvci oczyszczania ścieków i likwidacji pól w latach dziewięćdziesiątych dwudziestego...
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Krótko- i długookresowe skorygowane krańcowe skłonności do konsumpcji. Gospodarka Polski w latach 1995-2018
PublicationWe wstępnej części artykułu - odwołując się do teorii Keynesa - omówiono i zdefiniowano podstawowe relacje makroekonomiczne pomiędzy konsumpcją globalną a produktem krajowym brutto. W następnej kolejności przeprowadzono analizę informacji statystycznych dotyczących prywatnych wydatków konsumpcyjnych gospodarstw domowych (C) oraz globalnych wydatków konsumpcyjnych społeczeństwa (CO) na tle produktu krajowego brutto (PKB) w Polsce...
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Naprowadzanie i pozycjonowanie obiektów oceanotechnicznych
e-Learning CoursesWykonanie projektu DP capability plot
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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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New trends in development of micro heat exchangers for ORC's
PublicationIn the paper, new trends in development of micro heat exchangers for CHP are presented. Main attention is concentrated on the question, how channels size and thermal development lenght affect the heat transfer. New types of micro heat exchangers developed at the Institute of Fluid-Flow Machinery PAS and the methoda of their design are presented. The new experimental testing methods of the micro-channel heat exchangers, new algorithms...
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Dual-wavelength laser polarimeter and its performance capabilities
PublicationA dual-wavelength optical polarimetric approach has been proposed as a means of elimination of the systematic errors and estimation of the optical anisotropy parameters for a single DKDP crystal. Our HAUP-related polarimeter uses two semiconductor lasers with the neighbouring wavelengths of 635 nm and 650 nm. Based on the temperature dependence analysis of small characteristic azimuths of light polarization with respect to the...
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Optymalizacja postaci konstrukcyjnej dynamometru-uchwytu próbek badanych wwarunkach mikrooscylacji. W: [CD-ROM] III Konferencja Naukowo-Techniczna SYMULACJA 2002. Wdzydze Kiszewskie, 16 - 18 październik 2002. Tarnowskie Góry: MESco**2002 [16 s. 19 rys. bibliogr. 9 poz.]
PublicationW ramach badań tribologicznych prowadzonych w Katedrze Konstrukcji i Eksplo-atacji Maszyn Politechniki Gdańskiej zaprojektowano i skonstruowano stanowi-sko z głowicą SOOG do wyznaczenia odporności materiałów ślizgowych na zuży-cie w warunkach mikroprze-mieszczeń w płaszczyźnie ślizgania. Specyfika sta-nu obciążenia próbek z badanych materiałów, wymagała zastosowania wielu ory-ginalnych rozwiązań konstrukcyjnych. Do głównych...
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Mantle cell lymphoma - Female, 37 - Tissue image [9090729594404581]
Open Research DataThis is the histopathological image of UNKNOWN PRIMARY SITE tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Anaplastic large cell lymphoma, ALK positive - Male, 14 - Tissue image [6080730009658611]
Open Research DataThis is the histopathological image of BONES, JOINTS AND ARTICULAR CARTILAGE OF OTHER AND UNSPECIFIED SITES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Anaplastic large cell lymphoma, ALK positive - Male, 14 - Tissue image [6080730009654191]
Open Research DataThis is the histopathological image of BONES, JOINTS AND ARTICULAR CARTILAGE OF OTHER AND UNSPECIFIED SITES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Anaplastic large cell lymphoma, ALK positive - Male, 14 - Tissue image [6080730009658731]
Open Research DataThis is the histopathological image of BONES, JOINTS AND ARTICULAR CARTILAGE OF OTHER AND UNSPECIFIED SITES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Anaplastic large cell lymphoma, ALK positive - Male, 14 - Tissue image [6080730009653591]
Open Research DataThis is the histopathological image of BONES, JOINTS AND ARTICULAR CARTILAGE OF OTHER AND UNSPECIFIED SITES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Anaplastic large cell lymphoma, ALK positive - Male, 14 - Tissue image [6080730009656671]
Open Research DataThis is the histopathological image of BONES, JOINTS AND ARTICULAR CARTILAGE OF OTHER AND UNSPECIFIED SITES tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Implementacja modelu histerezy Preisacha ze sprzężeniem zwrotnym do modelowania histerezy magnetycznej rdzenia transformatora zwijanego z blachy
PublicationW referacie przedstawiono skalarny model histerezy Preisacha (MHP) z nieliniowym sprzężeniem zwrotnym o charakterystyce jednoznacznej. W pracy zaproponowano funkcję dystrybucji Preisacha (FDP) aproksymowaną za pomocą skończonego szeregu funkcyjnego zawierającego dwuwymiarowe funkcje Gaussa. Do wyznaczenia współczynników tego szeregu zastosowano procedurę optymalizacji oparta na algorytmie Levenberga-Marquardta. Do celów identyfikacji...
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The Possibility to use a Nuclear Power Plant as a Source of Electrical Energy and Heat
PublicationIn this article issues concernig the possibility of nuclear power plant (NPP) operation also as a source of heat, which means combined heat and power production, have been described. CHP work is possible and profitable only in those areas where high thermal power demand occurs, which means near city agglomerations such as Warsaw or the Tri-City. Two levels of thermal power delivered to the heating system have been considered. Preliminary...
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WSPÓŁPRACA BLOKU GAZOWO-PAROWEGO Z OBIEGIEM ORC = Combinded power plant in cooperation with ORC
PublicationIn the paper presented is the idea of a combined gas and steam power plant cooperation with a low temperature organic Rankine cycle ORC unit. Considerations presented in the paper are accomplished for the Gorzów CHP. The intention of present analysis is heat recovery of low temperature energy and its further use in ORC cycle in order to produce electricity, without increase in fuel consumption. Waste energy is recovered from the...
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Geotechnical Aspects of Dike Construction Using Soil-Ash Composites
PublicationAn analysis of using of anthropogenic materials, mainly ashes from Coal Combustion Products (CCP), for dike construction is shown. Perspectives of anthropogenic materials application in geotechnical engineering and their advantages in sense of the carbon dioxide reduction are discussed. According to regulations of Kioto Protocol 2005 and EU agreement “Energy Roadmap 2050” recycled materials have higher usage priority than natural...