Search results for: sea water corrosion

• Influence of Added Water Mass on Ship Structure Vibration Parameters in Virtual and Real Conditions

  Publication

  • D. Van Doan
  • L. Murawski
  • A. Szeleziński
  • T. Muchowski
  • M. Kluczyk
  • A. Muc
  • K. Jasiński
  • M. Chodnicki

  - Scientific Journal of Gdynia Maritime University - Year 2023

  Modelling of ship structures in a virtual environment is now standard practice. Unfortunately, many engineers forget to consideri the influence of added water on the frequency values and the amplitude of natural vibrations. The article presents the effect of water damping on the frequency values of the individual natural vibration modes. The tests were carried out in two stages. First, the mentioned values were determined using...

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• Chemical and Genetic Diversity of Nodularia spumigena from the Baltic Sea

  Publication

  • H. Mazur-Marzec
  • M. Bertos-Fortis
  • A. Toruńska-Sitarz
  • A. Fidor
  • C. Legrand

  - Marine Drugs - Year 2016

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• Total, methyl and organic mercury in sediments of the Southern Baltic Sea

  Publication

  • J. Bełdowski
  • M. Miotk
  • M. Bełdowska
  • J. Pempkowiak
  • M. Bełdowska

  - MARINE POLLUTION BULLETIN - Year 2014

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• Molecular-dynamics simulation of clustering processes in sea-ice floes

  Publication

  • A. Herman

  - PHYSICAL REVIEW E - Year 2011

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• Factors influencing variability of mercury input to the southern Baltic Sea

  Publication

  • M. Bełdowska
  • D. Saniewska
  • L. Falkowska

  - MARINE POLLUTION BULLETIN - Year 2014

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• Nonlinear principal component analysis of the tidal dynamics in a shallow sea

  Publication

  • A. Herman
  • A. Herman

  - GEOPHYSICAL RESEARCH LETTERS - Year 2007

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• Mercury in Precipitation at an Urbanized Coastal Zone of the Baltic Sea (Poland)

  Publication

  • D. Saniewska
  • M. Bełdowska
  • J. Bełdowski
  • L. Falkowska

  - AMBIO - Year 2014

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• WAVE AND CURRENT MODELLING OVER THE BALTIC SEA AND THE GDAŃSK BAY

  Publication

  • W. Cieślikiewicz
  • A. Herman

  - Year 2003

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• Numerical modeling of force and contact networks in fragmented sea ice

  Publication

  • A. Herman

  - ANNALS OF GLACIOLOGY - Year 2013

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• Adenosine triphosphate in the marine boundary layer in the southern Baltic Sea

  Publication

  • D. Pryputniewicz-Flis

  - OCEANOLOGIA - Year 2002

• A method for assessing hazards, risks and safety of damaged ships at sea

  Publication

  • M. K. Gerigk

  - Year 2006

  Przedstawiono wybrane problemy związane z metodą oceny bezpieczeństwa statków, opartej na ocenie zachowania się statku i ocenie ryzyka, w warunkach eksploatacyjnych. Omówiono zakres oceny bezpieczeństwa i analizy ryzyka w odniesieniu do zagadnienia zachowania się statku uszkodzonego na morzu. Analiza ryzyka oparta jest na zastosowaniu elementów Formalnej Oceny Bezpieczeństwa FSA. Opisano główne kroki analizy ryzyka. Podano podstawowe...

• Sarmaci znad Morza Czarnego [Sarmatians from the Black Sea]

  Publication

  • Z. Marek Kaźmierczyk

  - Year 2018

• Ridging, strength, and stability in high-resolution sea ice models

  Publication

  • W. Lipscomb
  • E. Hunke
  • W. Maslowski
  • J. Jakacki

  - Journal of Geophysical Research: Space Physics - Year 2007

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• Searching for objects under the sea bed bythe acoustic method

  Publication

  • E. Kozaczka

  - Polish Maritime Research - Year 2007

  Opisano metodykę poszukiwania przedmiotów zamulonych w morzu z zastosowaniem metod akustycznych.

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• Hybrid system of safe ship steering in a collision situation at sea

  Publication

  • A. Łebkowski
  • R. Smierzchalski

  - Year 2003

  ...

• Genetic operators of evolutionary algorithm in problem of collision avoidance at sea

  Publication

  • R. Smierzchalski
  • A. Łebkowski

  - Year 2003

  ...

• Probabilistic prognosis of cliffslide along Baltic Sea coast in Poland.

  Publication

  • T. Brzozowski
  • A. Tejchman

  - Studia Geotechnica et Mechanica - Year 2003

  Analiza stateczności wybrzeży klifowych metodą probabilistyczną. Określnie stref zagrożonych utratą stateczności.

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• Experimental investigation of forced convection of water/EGAl2O3 nanofluids inside horizontal tube

  Publication

  • J. Cieśliński
  • P. Kozak

  - Year 2018

  In this paper, forced convection of water/EG-Al2O3 nanofluids inside horizontal stainless steel tube is studied experimentally. As base fluid served water/EG mixture of two ratios (60:50 and 50:50). Nanoparticle mass concentrations was 0.1% or and 1%. Transition and turbulent flow regimes were tested. Average heat transfer coefficient and pressure drop values were determined for nanofluids and compared to base fluids. Deterioration...

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• Effect of water salinity on properties of multipass underwater wet manual metal arc welded joints

  Publication

  • J. Tomków
  • D. Fydrych
  • J. Łabanowski

  - Welding in the World - Year 2023

  The weldability of steel under the water is limited due to the influence of the environment. Water causes limited visibility, presence of the residual stresses, increasing the cooling rate, and increasing the diffusible hydrogen content in deposited metal, leading to the formation of brittle microstructures in heat-affected zone (HAZ). The paper presents the results of mechanical properties testing of S420G2+M steel welded joints...

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• Interfacial water controls the process of adsorption of hyperactive antifreeze proteins onto the ice surface

  Publication

  • J. Grabowska
  • A. Kuffel
  • J. Zielkiewicz

  - JOURNAL OF MOLECULAR LIQUIDS - Year 2020

  A mechanism of interactions between the ice-binding surface of a hyperactive antifreeze protein molecule and the ice surface is proposed, involving the influence of water present between the two surfaces on the behavior of the approaching molecule. It is demonstrated that the interfacial water, even before its full solidification, can act as a factor that pushes away or pulls nearer the protein molecule to ensure its proper positioning....

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• Identification of the Contamination Source Location in the Drinking Water Distribution System Based on the Neural Network Classifier

  Publication

  • T. A. Rutkowski

  - IFAC-PapersOnLine - Year 2018

  The contamination ingression to the Water Distribution System (WDS) may have a major impact on the drinking water consumers health. In the case of the WDS contamination the data from the water quality sensors may be efficiently used for the appropriate disaster management. In this paper the methodology based on the Learning Vector Quantization (LVQ) neural network classifier for the identification of the contamination source location...

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• Ranking of ecotoxisity tests for underground water assessment using the Hasse diagram technique

  Publication

  • B. Kudłak
  • S. Tsakovsky
  • V. Simeonov
  • A. Tracz-Sagajdakow
  • L. Wolska
  • J. Namieśnik

  - CHEMOSPHERE - Year 2014

  The present study deals with the novel application of the Hasse diagram technique (HDT) for the specific ranking of ecotoxicity tests capable of assessment of underground water quality. The area studied is a multi-municipal landfill in the northern Poland. The monitoring network of the landfill constitutes of 27 piezometers for underground water monitoring and two observation points at surface water courses. After sampling, chemical...

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• Unusual Influence of Fluorinated Anions on the Stretching Vibrations of Liquid Water

  Publication

  • M. Śmiechowski

  - JOURNAL OF PHYSICAL CHEMISTRY B - Year 2018

  Infrared (IR) spectroscopy is a commonly used and invaluable tool in the studies of solvation phenomena in aqueous solutions. Concurrently, ab initio molecular dynamics (AIMD) simulations deliver the solvation shell picture at a molecular detail level and allow for a consistent decomposition of the theoretical IR spectrum into underlying spatial correlations. Here, we demonstrate how the novel spectral decomposition techniques...

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• Methylmercury and total mercury content in soft tissues of two bird species wintering in the Baltic Sea near Gdansk, Poland

  Publication

  • M. Rutkowska
  • G. Bajger-Nowak
  • D. Kowalewska
  • S. Bzoma
  • E. Kalisińska
  • J. Namieśnik
  • P. Konieczka

  - CHEMOSPHERE - Year 2019

  Of the various forms of Hg occurring in nature, (mono) methylmercury (MeHg) is an especially toxic form and practically all forms of Hg can be converted into MeHg as a result of natural processes. Total mercury (THg) and MeHg were determined in tissues of two piscivorous birds: razorbill Alca torda and black-throated loon Gavia arctica to provide baseline data on current mercury concentrations for liver, kidneys and pectoral muscle...

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• Influence of Water-Induced Degradation of Polytetrafluoroethylene (PTFE)-Coated Woven Fabrics Mechanical Properties

  Publication

  • A. Ambroziak
  • P. Kłosowski

  - Materials - Year 2022

  The impact of water-induced degradation on the mechanical properties of the chosen two PTFE-coated, glass threads woven fabrics is investigated in this paper. The paper begins with a survey of literature concerning the investigation and determination of coated woven fabric properties. The authors carried out the uniaxial tensile tests with an application of flat and curved grips to establish the proper values of the ultimate tensile...

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• Low-Pressure Injection of Water and Urea-Water Solution in Flash-Boiling Conditions

  Publication

  • Ł. Kapusta
  • R. Rogoz
  • J. Bachanek
  • Ł. Boruc
  • A. Teodorczyk

  - Year 2020

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• Analysis of energy and economic efficiency water heating by heat pump air-water

  Publication

  • N. Kozłowska
  • W. Kruszelnicka
  • A. Mroziński

  - Mechanik - Year 2015

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• Pool boiling of water-Al2O3 and water-Cu nanofluids on horizontal smooth tubes

  Publication

  • J. Cieśliński
  • T. Kaczmarczyk

  - Nanoscale Research Letters - Year 2011

  Przedstawiono wyniki pomiarów współczynnika przejmowania ciepła podczas wrzenia dwóch nanocieczy, tj. woda-Al2O3 i woda-Cu o trzech koncentracjach masowych nanocząstek: 0.01%,0.1% oraz 1% na poziomych gładkich rurkach ze stali nierdzewnej i miedzi o średnicy zewnętrznej 10 mm.

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• Identification of the Inertia of Masses Flowing Water through the Pipes in Water Power Plants

  Publication

  • G. Redlarski
  • A. J. Grono
  • M. A. Dąbkowski
  • P. Niklas
  • M. Śliwiński

  - Solid State Phenomena - Year 2009

  W artykule przedstawiono sposób identyfikacji stałej czasowej reprezentującej bezwładność mas przepływającej wody w systemie rurociągów, w elektrowni wodnej. Przedstawiono strukturę modelu układu regulacji prędkości kątowej wykorzystywanego w procesie identyfikacji oraz przeprowadzono badania skuteczności działania metody w środowisku Matlab-Simulink. Opisano najistotniejsze wnioski wynikające z przeprowadzonych badań symulacyjnych.

• Pool boiling of water-Al2O3 and water-Cu nanofluids on horizontal smooth tubes

  Publication

  • J. Cieśliński
  • T. Kaczmarczyk

  - Year 2010

  Przedstawiono wyniki badań eksperymentalnych wrzenia dwóch nanocieczy woda-Al2O3 i woda Cu na poziomych gładkich rurkach stalowych i miedzianych. Koncentracja nanoicząstek wynosiła 0.01%, 0.1% oraz 1%.

• Structural properties of water: Comparison of the SPC, SPCE, TIP4P and TIP5P models of water

  Publication

  • J. Zielkiewicz

  - Year 2005

  Dla czterech najpopularniejszych modeli wody obliczono wartości entropii absolutnej ciekłej wody w temperaturze 298 K, średnią liczbę wiązań wodorowych tworzonych przez cząsteczkę wody, średni czas życia wiązania wodorowego, średni czas życia cząsteczki wody w stanie związanym (gdy tworzy ona co najmniej jedno wiązanie wodorowe) oraz średnią energię wiązania wodorowego. Otrzymane rezultaty porównano z eksperymentem. Uzyskane wyniki...

• Temper bead welding of S420G2+M steel in water environment

  Publication

  • D. Fydrych
  • A. Świerczyńska
  • G. Rogalski
  • J. Łabanowski

  - Advances in Materials Science - Year 2016

  The article presents the idea of the use of Temper Bead Welding (TBW) technique to improve the weldability of high strength steel at underwater wet welding conditions. Wet welding method with the use of covered electrodes is described. This work shows results of metallographic examinations and hardness measurements of samples of S420G2+M steel with weld beads performed under water. It has been shown that Temper Bead Welding technique...

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• Impact of maintenance of floodplains of the Vistula River on high water levels on the section from Włocławek to Toruń

  Publication

  • D. Gąsiorowski
  • M. Szydłowski

  - Acta Energetica - Year 2013

  This article describes the methodology of hydraulic calculations to estimate the water levels in open channels for steady gradually varied flow. The presented method has been used to analyse the water level on the Vistula River from Włocławek cross-section to Toruń cross-section. The HEC-RAS modelling system has been used for parameterization of the river channel and floodplains, as well as for flow simulation. The results obtained...

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• Canadian Water Resources Journal

  Journals

  ISSN: 0701-1784 , eISSN: 1918-1817

• Journal of Water and Climate Change

  Journals

  ISSN: 2040-2244

• Journal of Water Management Modeling

  Journals

  ISSN: 2292-6062

• WEM-WATER ENGINEERING & MANAGEMENT

  Journals

  ISSN: 0273-2238

• Water Quality Exposure and Health

  Journals

  ISSN: 1876-1658

• Australian Journal of Water Resources

  Journals

  ISSN: 1324-1583

• Journal of Water Reuse and Desalination

  Journals

  ISSN: 2220-1319

• Air Soil and Water Research

  Journals

  ISSN: 1178-6221

• International Journal of Water Governance

  Journals

  ISSN: 2211-4491 , eISSN: 2211-4505

• Wiley Interdisciplinary Reviews-Water

  Journals

  ISSN: 2049-1948

• Sustainability of Water Quality and Ecology

  Journals

  ISSN: 2212-6139

• GROUND WATER MONITORING AND REMEDIATION

  Journals

  ISSN: 1069-3629 , eISSN: 1745-6592

• Journal of Water and Environment Technology

  Journals

  eISSN: 1348-2165

• Water Resources and Rural Development

  Journals

  ISSN: 2212-6082

• Drinking Water Engineering and Science

  Journals

  ISSN: 1996-9457

• JOURNAL OF SOIL AND WATER CONSERVATION

  Journals

  ISSN: 0022-4561 , eISSN: 1941-3300

• ACS ES&T Water

  Journals

  eISSN: 2690-0637