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Wyniki wyszukiwania dla: SEAL DURABILITY
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ENERGY ANALYSIS OF THE PROPULSION SHAFT FATIGUE PROCESS IN A ROTATING MECHANICAL SYSTEM PART II IDENTIFICATION STUDIES – DEVELOPING THE FATIGUE DURABILITY MODEL OF A DRIVE SHAFT
PublikacjaThe article presents a continuation of research carried out concerning identification of energy consequences of mechanical fatigue within a propeller shaft in a rotating mechanical system, while working under conditions of the loss of the required alignment of shaft lines. Experimental research was carried out on a physical model reflecting a full-sized real object: i.e., the propulsion system of the ship. It is proven, by means...
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The real alternative? A comparison of German real estate returns with bonds and stocks
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Multi-stage magnetic-fluid seals for operating in water - life test procedure, test stand and research results. Part II Results of life tests of multi-stage magnetic - fluid seal operating in water
PublikacjaThe edge criteria for magnetic-fluid seals durability research were described in previous article [24] and now the tests results are presented. The tests were made with three magnetic fluids using various magnets quantity in magnetic assemblies. If values obtained in the repeated test deviated by more than 10 % from results of the first test an additional control test was made for final characteristics. The characteristics are:...
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The Effects of the Anthropological Race, Gender and Location of Verbal-Pictorial Stimuli on the Usability of Visual Information Conveyance
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A Study of the Impact of Internal and External Usability on Knowledge Transfer by the Means of Mobile Technologies: Preliminary Results
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Self-advocacy of a person with a disability in the dual role of paid worker and volunteer: Theoretical considerations and a case study
PublikacjaThe changing models of disability influence the way people with disabilities participate in social life, and how they can transform their life and environment. Such participation may take the form of work and volunteering, as well as participation in self-advocacy movements. This paper aims to explore how a woman with hearing impairment perceives her dual role as a regular worker and voluntary self-advocate within one organization...
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Alkali-activated slag (AAS) and OPC-based composites containing crumb rubber aggregate: Physico-mechanical properties, durability and oxidation of rubber upon NaOH treatment
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NONLINEAR ANALYSIS-REAL WORLD APPLICATIONS
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Usability of accident and incident reports for evidence-based risk modeling – A case study on ship grounding reports
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COMPARATIVE ANALYSIS OF THE RESULTS OF GAS FLOW IN A LABYRINTH SEAL FOR A NUMERICAL AND THEORETICAL MODEL
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Life tests of a rotary single-stage magnetic-fluid seal for shipbuilding applications
PublikacjaUse of the magnetic fluid seal technology in water is much more difficult technological problem in comparisonto gas or vacuum environment. Some seals constructed up to time been are designed as hybrid, two stagesealing structures with shields or mechanical seals used as protection measures to the magnetic fluid seal.Anyway, there is always problem with immediate contact between magnetic fluid and the environmentalliquid. In the...
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Duration of disability, functional independence, coping styles and the quality of life in patients with spinal cord injury – Pilot study
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Journal of Corporate Real Estate
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International Real Estate Review
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Drugs - Real World Outcomes
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Journal of Real Estate Literature
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Journal of Sustainable Real Estate
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Three Seas Economic Journal
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Journal of Real Estate Research
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An innovative light child seat
PublikacjaPrzedstawiono rozwój konstrukcji i badania symulacyjne fotelika samochodowego do przewozu dziecka.
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Diagnostic Model of Crankshaft Seals
PublikacjaT he paper presents a research stand being a diagnostic model of radial lip seals used, among others, on crankshafts of piston combustion engines in order to identify the correctness of their operation. The possibility of determining the technical condition of lip seals on the basis of the proposed coefficient of correctness of operation has been described. T he basic features of seals influencing their correctness of...
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Centrifugal magnetic fluid seals
PublikacjaSeals perform an important and at times overlooked function in a lubricant system. They prevent or minimize the movement of the lubricant between two surfaces and also minimize the level of contamination in the system. Seals are divided into static and dynamic types. Static seals operate in systems where the mating surfaces do not move relative to each other. In contrast, dynamic seals operate under conditions where the mating surfaces...
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Dead Sea Discoveries
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Akustyka sal
PublikacjaKsiążka przeznaczona jest dla architektów i inżynierów budownictwa, projektujących pomieszczenia, zwłaszcza sale w obiektach użytku publicznego.
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44 Years Hindcast of the sea level and circulation in the Baltic Sea
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Numerical modelling of thermodynamics and dynamics of sea ice in the Baltic Sea
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Impressions about people with intellectual disability of Polish high school students who participated in a workshop led by self-advocates
PublikacjaThe research question is whether participation in a two-session workshop led by self-advocates with mild intellectual disability, supported by professional staff, affects high school students’ impression of people with intellectual disability, measured by a self-report questionnaire based on a semantic differential. The study was paper-pencil questionnaire-based and anonymous, conducted in Warsaw, Poland. Three measurements...
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Quantitative magnetic resonance assessment of brain atrophy related to selected aspects of disability in patients with multiple sclerosis: preliminary results
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Journal of Social Work in Disability & Rehabilitation
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Alter-European Journal of Disability Research
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International Journal of Disability, Development and Education
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Journal of Intellectual Disability - Diagnosis and Treatment
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International Journal on Disability and Human Development
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International Journal on Disability and Human Development
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Journal of Literary and Cultural Disability Studies
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Asia Pacific Disability Rehabilitation Journal
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How much a geometrical model of a honeycomb seal can be simpli ed in the CFD calculation
PublikacjaThis paper presents the inuence of geometry simplication on the results obtained in the computational fluid dynamics simulation. The subject of simulation was part of the honeycomb seal located at the inlet to high pressure part of a steam turbine. There were three different geometrical models assumed in the calculations. First one was two-dimensional case and two others were three dimensional, one with the radius of curvature...
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Sea-dumped ammunition as a possible source of mercury to the Baltic Sea sediments
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Exposure status of sea-dumped chemical warfare agents in the Baltic Sea
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Deep sea habitats in the chemical warfare dumping areas of the Baltic Sea
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Dokładność skal ekwiwalentności a indyferencja stochastyczna
PublikacjaW pracy dowodzimy twierdzenia, które wiąże założenie dokładności skal ekwiwalentności (ESE) z symetrycznym czynnikiem dominacji stochastycznej pierwszego rzędu. Dokładniej, niech X i Y będą rozkładami wydatków, odpowiednio, analizowanej grupy gospodarstw domowych i grupy gospodarstw odniesienia. Niech Z oznacza rozkład X skorygowany za pomocą pewnej skali ekwiwalentności. Jeśli spełnione jest założenie ESE, to Z jest stochastyczne...
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Dichotomous design of real-time systems
PublikacjaW pracy prezentuje się i analizuje dwie podstawowe metody projektowania komputerowych systemów czasu rzeczywistego, spełniających rozmaite zadania z zakresu automatyki, sterowania, nadzoru i diagnostyki, w których następuje interakcja komputera z obiektami i procesami przemysłowymi, które posiadają naturę ciągłą (pozwalającą na ścisłą matematyczną charakteryzację w czasie ciągłym). Definiuje się podejście uwarunkowane kontekstowo...
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Technology of real-world analyzers (TAUR)
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ARUZ - Analyzer of Real Complex Systems
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Sea spectra revisited
PublikacjaPokazano, że widma falowania ITTC, wywodzące się z widma Bretschneidera, zależnego od dwóch parametrów, można zredukować do wspólnego widma bezwymiarowego, co oznacza, że są one geometrycznie powinowate. To samo dotyczy widma JONSWAP, które dodatkowo charakteryzuje trzeci paprametr, związany z kształtem piku. Umożliwia to aproksymację tych widm za pomocą rozkładu log-normalnego, co zapewnia realistyczny parametr szerokości widma,...
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ANALYSIS OF THE IMPACT OF MASS FLOW EXTRACTION ON THE CHANGE OF PARAMETERS IN A LABYRINTH SEAL USING THE STODOLA METHOD
PublikacjaLabyrinth seals are an important element of a steam turbine set design. The use of diagnostic extraction makes it possible to control the operation of a seal by providing information on the thermodynamic parameters along the length of the seal. Diagnostic extraction has a considerable impact on the change of the parameters, the amount of the extracted mass. This article describes the dependence of pressure in the clearance downstream...
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ANALYSIS OF THE IMPACT OF MASS FLOW EXTRACTION ON THE CHANGE OF PARAMETERS IN A LABYRINTH SEAL USING THE STODOLA METHOD
PublikacjaLabyrinth seals are an important element of a steam turbine set design. The use of diagnostic extraction makes it possible to control the operation of a seal by providing information on the thermodynamic parameters along the length of the seal. Diagnostic extraction has a considerable impact on the change of the parameters, the amount of the extracted mass. This article describes the dependence of pressure in the clearance downstream...
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Multi-stage magnetic-fluid seals for operating in water - life test procedure, test stand and research results
PublikacjaThe edge criteria for magnetic-fluid seals durability research are critical for the seal'stechnological usefulness. The magnetic fluid seal technology in water is much moredifficult technological problem in comparison to gas or vacuum environment. There isalways problem with immediate contact between magnetic fluid and the environmentaluninspected liquids. In the paper are presented ways of experiments definitions carried outwith...
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Spatial and interannual variations of seasonal sea surface temperature patterns in the Baltic Sea
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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...