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- Publikacje 3655 wyników po odfiltrowaniu
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Wyniki wyszukiwania dla: CHILD SEAT
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Steam turbine as the main ship propulsion. More than a hundred years at sea.
PublikacjaPrzedstawiono rys historyczny rozwoju okrętowych turbin parowych. Omówiono główne rozwiązania konstrukcyjne podstawowych elementów parowych siłowni turbinowych i współczesne tendencje i perspektywy rozwoju tego napędu.
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Pollution of the Baltic Sea - DPSIR approach oriented. Pesticide pollution case study
PublikacjaPraca przedstawia krótką charakterystykę systemu DPSIR i podjętą próbę zastosowania go dla Morza Bałtyckiego. Opisano projekt szczegółowy, którego tematem było zanieczyszczenie pestycydami Morza Bałtyckiego. Przedstawiono sposób postępowania przy ustalaniu elementów systemu DPSIR, przedstawiono również skrótową charakterystykę pestycydów.
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Sea surface temperature in the Baltic Sea derived from Landsat 8 satellite data - path 194
Dane BadawczeThe data set contains high resolution sea surface temperature (SST) maps estimated from Landsat 8 Level 1 Thermal Infrared Sensor (TIRS) data using NLSST algorithm. SST was calculated only for granules (185 x 180 km) from satellite path number 194, that covered at least 2000 km2 of the cloud-free area of the Baltic Sea.
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Sea surface temperature in the Baltic Sea derived from Landsat 8 satellite data - path 192
Dane BadawczeThe data set contains high resolution sea surface temperature (SST) maps estimated from Landsat 8 Level 1 Thermal Infrared Sensor (TIRS) data using NLSST algorithm. SST was calculated only for granules (185 x 180 km) from satellite path number 192, that covered at least 2000 km2 of the cloud-free area of the Baltic Sea.
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Sea surface temperature in the Baltic Sea derived from Landsat 8 satellite data - path 191
Dane BadawczeThe data set contains high resolution sea surface temperature (SST) maps estimated from Landsat 8 Level 1 Thermal Infrared Sensor (TIRS) data using NLSST algorithm. SST was calculated only for granules (185 x 180 km) from satellite path number 191, that covered at least 2000 km2 of the cloud-free area of the Baltic Sea.
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Sea surface temperature in the Baltic Sea derived from Landsat 8 satellite data - path 193
Dane BadawczeThe data set contains high resolution sea surface temperature (SST) maps estimated from Landsat 8 Level 1 Thermal Infrared Sensor (TIRS) data using NLSST algorithm. SST was calculated only for granules (185 x 180 km) from satellite path number 193, that covered at least 2000 km2 of the cloud-free area of the Baltic Sea.
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Sea surface temperature in the Baltic Sea derived from Landsat 8 satellite data - path 190
Dane BadawczeThe data set contains high resolution sea surface temperature (SST) maps estimated from Landsat 8 Level 1 Thermal Infrared Sensor (TIRS) data using NLSST algorithm. SST was calculated only for granules (185 x 180 km) from satellite path number 190, that covered at least 2000 km2 of the cloud-free area of the Baltic Sea.
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Baltic Sea Academy
Wydawnictwa -
Discount for children deducted from tax in selected EU countries, available according to number of children criterion (in EUR) in 2017
Dane BadawczeWhen analyzing the collected data, it should be indicated that the amount of tax preferences addressed to families with children varies widely and ranges from several hundred euro to even several tens of thousands of euro relief annually. The highest family allowances, calculated in absolute terms, are in Germany, and the lowest in Poland. All countries,...
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DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
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DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
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TransNav - The International Journal on Marine Navigation and Safety of Sea Transportation
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David Duenas Cid dr hab.
OsobyHe is an Associate Professor at Kozminski University and the director of the Pub-Tech (Public Sector Data-Driven Technologies) Research Center. Previously, he served as an H2020 Marie Skłodowska-Curie Widening Fellow at Gdansk University of Technology, as a Researcher at the Johan Skytte Institute of Political Studies of the University of Tartu, as a Postdoctoral Researcher at the Ragnar Nurkse Department of Innovation and Governance...
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A semi-empirical method for calculation of flow boiling heat transfer coefficients for conventional channels and small diameter tubes
PublikacjaW pracy przedstawiono rozważania na temat modelowania dwufazowego przepływu wrzącego w kanałach konwencjonalnych i w kanałach o małej średnicy. Przedstawiono modyfikację korelacji zaproponowanej wcześniej przez J. Mikielewicza na podstawie nowych danych eksperymentalnych, uzyskanych dla kanałów o małej średnicy. Bank danych obejmował ponad 460 punktów pomiarowych dla czynników R141b, R134a, R113, R123, R12, R11 i wody. Uzyskano...
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Theoretical analysis of heat transfer between a liquid layer formed by an impinginf gas liquid jet AND a solid surface
PublikacjaHeat transfer phenomenon between a horizontal solid surface and a liquid layer created on a surface by an axisymmetrical liquid gas impinging jet has been analysed. The analytical treatment of the phenomenon is devoted to the area whose diameter is lower than the diameter of the hydraulic jump. W pracy przedstawiono teoretyczną analizę wymiany ciepła pomiędzy warstwą cieczy a stałą powierzchnią po której przepływa.
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Improved semi-empirical method for determination of heat transfer coefficient in flow boiling in conventional and small diameter tubes
PublikacjaPraca dotyczy przedstawienia poprawionego modelu umożliwiającego wyznaczanie współczynnika przejmowania ciepła w kanałach o małych średnicach jaj i tych tradycyjnych. Model zweryfikowano na 6 czynnikach chłodnuiczych uzyskując bardzo zadowalającą zgodność.
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Experimental validation of the theoretical analysis of heat transfer between a liquid layer formed by an impinging jet and a solid surface
PublikacjaPrzedstawiono wyniki badań eksperymentalnych wymiany ciepła między poziomą powierzchnią a przepływająca po niej warstwa cieczy utworzoną z napływającej strugi gazowo-cieczowej. Wyniki badań eksperymentalnych porównano z modelem teoretycznym zjawiska.
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Investigation of the flow, heat and mass transfer and emissions in pulverized fuel fired boiler using physical and numerical modeling.
PublikacjaPraca przedstawia wykorzystanie techniki modelowania fizycznego trójwymiarowego oraz obliczeń numerycznych umożliwiających symulację rzeczywistych procesów spalania paliw stałych i gazowych w urządzeniach energetycznych. Dodatkowo wyniki obliczeń porównano z wynikami modelowania fizycznego oraz pomiarów na obiekcie rzeczywistym.
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Interactive effects of vanadium and phosphorus on their uptake, growth and heat shock proteins in chickpea genotypes under hydroponic conditions
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Trace analyses of gaseous products formed during heat treatment of high stage H2SO4-GICs and expanded graphite
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Fabrication of Electrochemical Biosensor Based on Titanium Dioxide Nanotubes and Silver Nanoparticles for Heat Shock Protein 70 Detection
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Comparison the heat load as the results of tests on human subject in a hot environment with the results obtained from numerical simulation
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Mycobacterium tuberculosis Complex and Mycobacterial Heat Shock Proteins in Lymph Node Tissue from Patients with Pulmonary Sarcoidosis
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Modeling of heat and fluid flow in granular layers using high-order compact schemes and volume penalization method
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Compositional characteristics and nutritional quality of European beaver (Castor fiber L.) meat and its utility for sausage production
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Fatty Acid Profile, Health Lipid Indices, and Sensory Properties of Meat from Pekin Ducks of Different Origins
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Effect of different ventilation systems on air quality, heat consumption and psycho-physical comfort in modern residential buildings
PublikacjaArtykuł omawia wpływ różnych systemów wentylacji na jakość powietrza, zużycie ciepła i komfort psychiczno-fizyczny w nowoczesnych domach mieszkalnych na terenie Niemiec. Badania wykonano na kompleksie domków jednorodzinnych. Zbadano wpływ 4 systemów wentylacji.
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Effect of the absence of clear contractual conditions for the pur-chase of combined heat and power systems through public tenders
PublikacjaW artykule przedstawiono dyskusję konsekwencji stosowania różnych podejść do obliczeń kontraktowych parametrów technicznych zespołów kogeneracyjnych. Obliczenia te wykonywane są na potrzeby oferty przygotowywanej w związku z ogłoszeniem przetargu publicznego na zakup siłowni kogeneracyjnej. Brak precyzyjnych zasad określających warunk, i jakie należy przyjąć do wyznaczania parametrów kontraktowych zespołów kogeneracyjnych umożliwia...
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Thermodynamic and economic analysis of nuclear power unit operating in partial cogeneration mode to produce electricity and district heat
PublikacjaThis paper presents the methodology of techno-economic analysis for a nuclear unit operating in partial cogeneration mode and its application for the case study: a nuclear power plant planned in Poland. The research objectives were: to propose EPR, AP1000 and ESBWR nuclear condensing-extraction turbine systems modifications required for operation in cogeneration, to determine optimal heat production and heat transport line (HTL)...
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A common method for calculation of flow boiling and flow condensation heat transfer coefficients in minichannels with account of nonadiabatic effects
PublikacjaW pracy przedstawiono metodę ogólną wyznaczania współczynników przejmowania ciepła podczas wrzenia w przepływie i kondensacji w przepływie w minikanałach z uwzględnieniem efektu nieadiabatycznego. Uwzględnia ona wpływ modyfikacji naprężeń stycznych na granicy ciecz-para na wymianę ciepła.
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Non-isothermal effects in a common method for calculation of heat transfer coefficient in flow boiling and flow condensation in minichannels
PublikacjaW pracy przestawiono efekty nieizotermiczne w metodzie wyznaczania współczynnika przejmowania ciepła podczas wrzenia w przepływie oraz kondensacji w przepływie w minikanałach. Wyniki obliczeń porównano z badaniami eksperymentalnymi z literatury, uzyskując dobrą zgodność.
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Experimental investigation of M-shape heat transfer coefficient distribution of R123 flow boiling in small-diameter tubes
PublikacjaW publikacji przedstawiono wyniki badań wrzenia czynnika R123 w srebrnych rurkach o małych średnicach (średnice wewnętrzne wynosiły odpowiednio 1.15 mm i 2.3 mm). Badania przeprowadzono w szerokim zakresie stopnia suchości pary (0.01-0.9), gęstości strumienia masy (650-3000 kg/(m2s)) oraz gęstości strumienia ciepła (40-80 kW/m2). W badaniach wykazano, że istnieją dwa lokalne maksima współczynnika przejmowania ciepła w jego profilu...
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Flow structure, heat transfer and scaling analysis in the case of thermo-magnetic convection in a differentially heated cylindrical enclosure
PublikacjaThe experimental, numerical and scaling analysis in the case of thermo-magnetic convection in a thermosyphon-like enclosure filled with a paramagnetic fluid is presented. Visualization of temperature field together with the numerical simulation gave an information about the flow structure, which indicated “finger-like” structures of hot and cold streams advecting each other. Their number depended on the Rayleigh number and also...
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Theoretical consideration of free convective heat transfer from a round isothermal plate slightly inclined from the vertical
PublikacjaA semi-analytical solution of simplified Navier-Stokes and Fourier-Kirchhoff equations describing free convective heat transfer from a round isothermal surface slightly inclined from the vertical is presented. The solution is based on the assumption, typical for natural convection, that the velocity component normal to the surface is negligibly small in comparison to the tangential one. Next we neglect the nonlinear inertia force...
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Analysis of the possibility of creep damage detection in T24 heat resistant steel with the help of magnetic nondestestructive testing methods
PublikacjaThe paper presents the result of an analysis of applicability of various electromagnetic methods of nondestructive evaluation for creep damage detection in a novel heat resistant steel - T24 grade. Two sample sets, cut out from membrane wall tubes, were investigated – the as-delivered one and another exploited for 36,000 h in a power plant. There are described results of magnetic hysteresis loops B(H), Barkhausen noise (BN) and...
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Influence of retrogression and reaging (RRA) heat treatment on microstructure, mechanical and chemical behaviour of an Al-Zn-Mg alloy
PublikacjaBadano metodą stałego wolnego rozciągania w wodzie morskiej wpływ czasu i temperatury nawrotu oraz powtórnego starzenia na czas do zniszczenia, energię zniszczenia, przewężenie i odkształcenie. Stwierdzono ogólnie niewielki wpływ, przy czym wzrostowi odporności na korozję naprężeniową towarzyszył spadek właściwości mechanicznych. Obserwowane zmiany właściwości przypisano zmianom struktury dyslokacyjnej i mikrostruktury.
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Experimental study of flow boiling pressure drop and heat transfer of R1233zd(E) at moderate and high saturation temperatures
PublikacjaThe paper presents the results of experimental study of flow boiling of R1233zd(E) in minichannel at moderate and high saturation temperatures. The heat transfer coefficient and pressure drop were measured for flow boiling in a stainless steel tube with 2 mm inside diameter and a length of 300 mm. Experiment has been conducted for saturation temperatures ranging from 83 to 145 °C which corresponds to values of reduced pressures...
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Spatial Distribution of Eucalyptus Plantation and its Impact on the Depletion of Groundwater Resources of Tehsil Swat Ranizai, District Malakand
PublikacjaNative to the continent of Australia, eucalyptus is a tall, evergreen tree belonging to the Myrtaceae family. Malakand district has the largest eucalyptus plantation in the province, covering an area of 22,071.29 ha. The present study aims to evaluate its impact on the groundwater table (GWT) in three selected union councils (UCs) of the study area, i.e., Agra, Totakan, and Kot. Both primary and secondary data support the study....
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Lateral load resistance of piled raft foundation - A case study of District Jail, Saidu Sharif, Swat Pakistan
PublikacjaPiled raft foundations under lateral loads are usually designed as a pile group, ignoring the contribution of the raft to resisting the lateral loads. In this paper, a case study was performed to determine the raft's contribution to the lateral load resistance. This study analyzed a pile-supported reinforced concrete retaining wall for two different foundation conditions, i.e., pile group foundation and pile raft foundation. Pile group...
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Pressure-induced flow processing behind the superior mechanical properties and heat-resistance performance of poly(butylene succinate)
PublikacjaWe propose a pressure-induced flow (PIF) processing method for the simultaneous enhancement of strength, toughness, and heat resistance of biodegradable poly(butylene succinate) (PBS). The pressure and temperature were systematically adjusted to optimize the tensile strength of PBS. Under the optimized processing conditions, the structured PBS was characterized by relatively high strength of 89.5 MPa, toughness of 21.4 kJ·m−2 ,...
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Analytical solution of non-stationary heat conduction problem for two sliding layers with time-dependent friction conditions
PublikacjaIn this article we conduct an overview of various types of thermal contact conditions at the sliding interface. We formulate a problem of non-stationary heat conduction in two sliding layers with generalized thermal contact conditions allowing for dependence of the heat-generation coefficient and contact heat transfer coefficient on time. We then derive an analytical solution of the problem by constructing a special coordinate...
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On the Application of Magnetoacoustic Emission for a Nondestructive Assessment of the Post Welding Heat Treatment of High Chromium Steel Weld Seams
PublikacjaThe paper analyses the possibility of post weld heat treatment (PWHT) quality assessment with the help of magnetoacoustic emission (MAE) signal measurements. Two welded superheater tubes, made of high chromium VM12 steel, were analysed—as welded and heat treated one. The analysed sample in the as welded state exhibited significantly higher hardness, accompanied by a big difference in the MAE signal intensity (of order of about...
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Thermal utilization of meat and bone meals. Performance analysis in terms of drying process, pyrolysis and kinetics of volatiles combustion
PublikacjaA development of technology of thermal utilization requires a thorough knowledge of the physicochemical properties, as well as kinetics of combustion of volatiles and char. Due to waste management regulations the meat and bone meal (MBM) is regarded as biofuel constituting one of the alternatives to fossil fuels in the energy market. MBM is a heterogeneous material that may consist of several different fractions. The extensive...
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Proposal of a Mobile Medical Waste Incinerator with Application of Automatic Waste Feeder and Heat Recovery System as a Novelty in Poland
PublikacjaThe paper presents and discusses the issues of medical waste (including hazardous ones) and the problems regarding their proper management in Poland. Inappropriate handling of infectious medical waste directly endangers human health and the environment. Infectious waste must be properly disposed of—in practice, the only method of their disposal available in Poland is a thermal treatment in the incinerators tailored for this purpose....
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The influence of welding heat input on the quality and properties of high strength low-alloy dissimilar steel butt joints
PublikacjaThe paper presents the results of non-destructive and destructive tests of dissimilar highstrength low-alloy S460ML and S460N steel butt joints. These steels are characterized by similar mechanical properties, but their carbon equivalent CeIIW values are much different. The joints were made using different values of heat input for each welding bead. They were tested by non-destructive methods: visual, penetrant, radiographic and...
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Pilot installation for thermal utilization of meat-and-bone meal using the rotary kiln pyrolyzer and the fluidised bed boiler
PublikacjaThe technology of thermal utilization of meat-and-bone meal (MBM) is still at the research state. However, there are already a number of existing pilot-scale installations that provide the complete, effective and environmentally safe process conducting. The universal technology was developed that allows to combust various types of waste, including animal waste, municipal waste and sludge, mixed at any ratio with different types...
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XRD-TiO2 heat-treated at 400-600oC in Ar or H2
Dane BadawczeThese data contain XRD patterns of TiO2 heat-treated at 400-600oC in Ar or H2. Two pases of TiO2 were identified: anatase and rutile.
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Changes in heat flow of V2O5 nanorods under inert atmosphere
Dane BadawczeThe DataSet contains the DSC curves of V2O5 nanorods obtained at 650°C. The information about nanorods synthesis is described in the Journal of Nanomaterials.
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Changes in heat flow of V2O5 nanorods under oxidizing atmosphere
Dane BadawczeThe DataSet contains the DSC curves of V2O5 nanorods obtained at 650°C. The information about nanorods synthesis is described in the Journal of Nanomaterials.
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Changes in heat of vanadium xerogel powder under different atmosphere
Dane BadawczeThe DataSet contains the DSC curves of the vanadium xerogel powder. The information about xerogel powder synthesis is described in the Journal of Nanomaterials.