Wyniki wyszukiwania dla: marine biogeochemistry

• JOURNAL OF MARINE TECHNOLOGY AND ENVIRONMENT

  Czasopisma

  ISSN: 1844-6116

• ARCHIVE OF FISHERY AND MARINE RESEARCH

  Czasopisma

  ISSN: 0944-1921

• Journal of Marine Engineering and Technology

  Czasopisma

  ISSN: 2046-4177 , eISSN: 2056-8487

• AFRICAN JOURNAL OF MARINE SCIENCE

  Czasopisma

  ISSN: 1814-232X , eISSN: 1814-2338

• International Journal of Marine Energy

  Czasopisma

  ISSN: 2214-1669

• Marine Systems and Ocean Technology

  Czasopisma

  ISSN: 1679-396X , eISSN: 2199-4749

• ICES JOURNAL OF MARINE SCIENCE

  Czasopisma

  ISSN: 1054-3139 , eISSN: 1095-9289

• Journal of Marine Environmental Engineering

  Czasopisma

  ISSN: 1061-026X

• INDIAN JOURNAL OF MARINE SCIENCES

  Czasopisma

  ISSN: 0379-5136 , eISSN: 0975-1033

• Regional Studies in Marine Science

  Czasopisma

  ISSN: 2352-4855

• Journal of Marine and Island Cultures

  Czasopisma

  eISSN: 2212-6821

• International Marine Energy Journal

  Czasopisma

  eISSN: 2631-5548

• Journal of Marine Medical Society

  Czasopisma

  ISSN: 0975-3605 , eISSN: 2589-1235

• MARINE AND FRESHWATER BEHAVIOUR AND PHYSIOLOGY

  Czasopisma

  ISSN: 1023-6244 , eISSN: 1029-0362

• MARINE ECOLOGY-PROGRESS SERIES

  Czasopisma

  ISSN: 0171-8630 , eISSN: 1616-1599

• Marine Life Science & Technology

  Czasopisma

  ISSN: 2096-6490 , eISSN: 2662-1746

• Journal of Marine Engineering and Technology

  Czasopisma

  ISSN: 1476-1548

• Annual Review of Marine Science

  Czasopisma

  ISSN: 1941-1405

• Marine Ecology-An Evolutionary Perspective

  Czasopisma

  ISSN: 0173-9565 , eISSN: 1439-0485

• MARINE TECHNOLOGY SOCIETY JOURNAL

  Czasopisma

  ISSN: 0025-3324 , eISSN: 1948-1209

• Russian Journal of Marine Biology

  Czasopisma

  ISSN: 1063-0740 , eISSN: 1608-3377

• Failure analysis of the exhaust valve face in diesel marine engine

  Publikacja

  • H. Smoleńska
  • W. Kończewicz

  - Advances in Materials Science - Rok 2010

  The exhaust valve from marine diesel engine which was damaged after 2000 hours of service was investigated. In order to prolong the service time the valve face was cladded with cobalt base alloy using laser technique. After failure microstructural and chemical analyses reviled that cladding process was conducted improperly. The chemical composition of the clad layer was far from the designed one and what more completely inhomogeneous....

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• "Shadow" method application within endoscopic examinations of marine engines

  Publikacja

  • Z. Korczewski
  • J. Rudnicki

  - Rok 2012

  The paper deals with diagnostic issues concerning endoscopic examinations of the working spaces within marine diesel and gas turbine engines. In the beginning, the endoscopy apparatus being on the laboratory equipment of the Department of Ship Power Plants of Gdansk University of Technology in Poland has been characterized. The endoscopy considerations have been focused on theoretical bases of a digital image processing and especially...

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• DEGRADATION OF GFRP MARINE LAMINATES WITH NANO PARTICLE MODIFIED COATINGS

  Publikacja

  • M. Landowski
  • K. Imielińska

  - Advances in Materials Science - Rok 2013

  Water absorption and surface blistering behaviour was studied for polyester-matrix laminates with SiO2 nanoparticle reinforced gel coats. Accelerated water immersion tests at 37°C showed that addition of 10% nanoparticles increases blisters incubation time by ca. 50% compared to 5% and 0% nanoparticles composites.

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• Cost Effective Corrosion and Fatigue Monitoring for Marine Transport Products

  Publikacja

  • H. Bugłacki
  • P. Tscheliesing
  • A. Jagenbrein
  • I. Baran

  - Rok 2012

  W artykule omówiono genezę i główne założenia projektu badawczego "Cost Effective Corrosion and Fatigue Monitoring for Transport Products'' o kryptonimie CORFAT, realizowanego w ramach VII Programu Ramowego Unii Europejskiej. Przedstawiono cele i metodykę badań, zalety nowej nowej metodyki monitorowania statków, zadania projektu, zalety i ograniczenia metody Emisji Akustycznej (EA), opis innych metod badań nieniszczących (NNDT)....

• "Shadow" method application within endoscopic examinations of marine engines

  Publikacja

  • Z. Korczewski
  • J. Rudnicki

  - Rok 2012

  The paper deals with diagnostic issues concerning endoscopic examinations of the working spaces within marine diesel and gas turbine engines. In the beginning, the endoscopy apparatus being on the laboratory equipment of the Department of Ship Power Plants of Gdansk University of Technology in Poland has been characterized. The endoscopy considerations have been focused on theoretical bases of a digital image processing and especially...

• The potential of Web-GIS and geovisual analytics in the context of marine cadastre

  Publikacja

  • A. Dawidowicz
  • M. Kulawiak

  - SURVEY REVIEW - Rok 2017

  The importance of the marine environment to human existence makes it imperative that information models represent the multidimensional nature of reality as closely as possible in order to facilitate good governance. Information regarding jurisdiction, as well as the effects of formal law and community interests on the marine environment (e.g. nature and spatial extents as well as rights, responsibilities, restrictions etc.) would...

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• Automatic Detection and Monitoring of Cyanobacterial Blooms in the Context of the Marine Cadastre

  Publikacja

  • A. Dawidowicz
  • M. Kulawiak
  • K. Bruniecki
  • M. Ogryzek

  - Rok 2018

  In the wake of the European and global spatial data infrastructures (SDI) it is important to build information systems which use and serve thematic data in compliance with the INSPIRE Directive. In the context of hydrographic data, the Directive requires EU member states to collect and share information on maritime areas divided into regions and sub-regions, as well as coastal zone management areas. These data are part of recently...

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• EXHAUST TEMPERATURE MEASUREMENTS OF THE MARINE TURBOCHARGED DIESEL ENGINES IN OPERATION

  Publikacja

  • Z. Korczewski

  - Journal of Polish CIMEEAC - Rok 2014

  The article presents the selected metrology issues concerning the exhaust temperature of the turbocharged marine engines during operation. The special concern has been paid on existing disturbances as well as thermodynamical interpretation of the recorded measurement signal. A diagnostic informativeness of the standard exhaust temperature’s measurements has worked out while the engine runs in steady states has been also considered...

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

  Publikacja

  • D. Pryputniewicz-Flis

  - OCEANOLOGIA - Rok 2002

• Optimization of multiple model neural tracking filter for marine targets

  Publikacja

  • W. Kazimierski
  • A. Stateczny

  - Rok 2012

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• Propeller Load Modelling In The Calculations Of Marine Shafting Torsional Vibrations

  Publikacja

  • N. Vulić
  • K. Bratić
  • B. Lalić
  • L. Stazić

  - Pedagogika-Pedagogy - Rok 2021

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• The accuracy of a marine satellite compass under terrestrial urban conditions

  Publikacja

  • P. S. Dąbrowski
  • C. Specht
  • A. Felski
  • W. Koc
  • A. Wilk
  • K. Czaplewski
  • K. Karwowski
  • K. Jaskólski
  • M. Specht
  • P. Chrostowski
  • J. Szmagliński

  - Journal of Marine Science and Engineering - Rok 2020

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• Model of the combustion process in the marine 4-stroke diesel engine

  Publikacja

  • J. Kowalski

  - Mechanik - Rok 2015

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• Experimental research on marine oil-lubricated stern tube bearing

  Publikacja

  • W. Litwin

  - PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY - Rok 2019

  Bearings of propeller shafts are very crucial elements of the propulsion system of each of the ships. The safety of shipping depends on their durability and reliability. The new legal restrictions mean that today we are looking for environmentally friendly solutions. That is why water-lubricated bearings are becoming more and more popular. So, will oil-lubricated shaft bearings belong to the past? The bearing with a white metal...

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• The thermal effort during marine steam turbine flooding with water

  Publikacja

  • M. Bryk
  • T. Kowalczyk
  • P. Ziółkowski
  • J. Badur

  - AIP Conference Proceedings - Rok 2019

  The work discussed an extreme case of cooling a steam turbine. The ship's steam turbine was used as an example. In marine transport units with low-speed engines dominate, however, there are also units with steam turbines. An example of analysed marine steam turbine is shown in Fig. 1. When considering the issue of cooling steam turbines, it is necessary to estimate the extreme conditions that may occur during operation of the turbine....

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• Selected Problems of Experimental Testing Marine Stern Tube Bearings

  Publikacja

  • A. Barszczewska
  • E. Wojtowicz
  • W. Litwin

  - Polish Maritime Research - Rok 2019

  This paper presents typical methods for conducting experimental tests on main shaft slide bearings. There are described their possible testing capabilities, advantages, drawbacks and limitations. Various testing methods were analyzed to find a solution able of providing a wide range of possible investigations at possibly acceptable limitations.

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• Analysis of the macrostructure of the fuel spray atomized with marine engine injector

  Publikacja

  • J. Grochowalska

  - Combustion Engines - Rok 2019

  One of the main problem influencing the combustion process in the cylinder of the marine engine is an fuel spray phenomena. The parameters describing the shape of the fuel spray are named macro parameters. This article presents the research results of the macrostructure parameters of the fuel spray atomized with the marine engine injector. The research were carried out by optical visualization measurement method of Mie scattering....

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• Concrete-filled FRP tubular members in marine and bridge structures

  Publikacja

  • M. Abramski

  - Rok 2020

  Concrete core of the concrete-filled tubes (CFTs) with circular cross-section is in the case of an axial compression subjected to a spatial state of compressive stresses. This state leads to enhancement in the concrete strength. The enhancement is utilized in Eurocode 4 design procedures for CFSTs (i.e. CFTs with tube made of steel). The structural design of CFFTs (i.e. CFTs with tube made of Fibre Reinforced Polymer - FRP) is...

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• Marine traffic risk modelling – an innovative approach and a case study

  Publikacja

  • J. Montewka
  • P. Krata
  • F. Goerlandt
  • A. Mazaheri
  • P. Kujala

  - Proceedings of the Institution of Mechanical Engineers Part O-Journal of Risk and Reliability - Rok 2011

  This paper presents a model to analyse the risk of two common marine accidents: collision and grounding. Attention is focused on oil tankers since they pose the highest environmental risks. A case study in selected areas of the Gulf of Finland in ice-free conditions is presented. The model utilizes a formula for risk calculation that considers both the probability of an unwanted event and its consequences. The model can be decomposed...

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• Planning of structure and range of preventive maintenance of marine diesel engine

  Publikacja

  • J. Lemski

  - Rok 2003

  Przedstawiono sposób wyznaczania zasobów godzin pracy elementów złożonego obiektu technicznego na przykładzie okrętowego silnika spalinowego oraz planowania struktury i zakresu jego obsługi profilaktycznej.

• A short pictorial history of orthodox and unorthodox hydrodynamic marine propulsors.

  Publikacja

  • J. Szantyr

  - Rok 2004

  Referat przedstawia historię rozwoju wybranych hydrodynamicznych pędników okrętowych, poczynając od czasów prehistorycznych. Prekursorem pędników jest ludzka dłoń - prymitywny ale skuteczny płat nośny. Koncepcja płata nośnego używanego w różnych konfiguracjach jest podstawą działania niemal wszystkich pędników okrętowych. W referacie opisano szczegółowo koła łopatkowe, będące w zasadzie zwielokrotnionymi wiosłami, pędniki cykloidalne...

• The Accuracy of a Marine Satellite Compass under Terrestrial Urban Conditions

  Publikacja

  • P. Dąbrowski
  • C. Specht
  • A. Felski
  • W. Koc
  • A. Wilk
  • K. Czaplewski
  • K. Karwowski
  • K. Jaskólski
  • M. Specht
  • P. Chrostowski
  • J. Szmagliński

  - Journal of Marine Science and Engineering - Rok 2019

  When used at sea, satellite compasses are capable of determining the course of a sailing vessel with high accuracy. It is dicult to verify the accuracy declared by the device manufacturer under such conditions, as it is dicult to define a reliable reference. This study analyses the accuracy of the satellite compass in an urban setting, with the satellite signal being obscured to various extents. It is an important point in the...

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• MARINE POLICY

  Czasopisma

  ISSN: 0308-597X , eISSN: 1872-9460

• Mercury concentrations in marine biota with special focus on grey and ringed seals

  Publikacja

  • G. Bajger-Nowak
  • A. Roos
  • P. Konieczka
  • I. Pawliczka
  • K. Skóra
  • F. Riget
  • J. Namieśnik

  - Rok 2010

  Marine organisms are exposed and sensitive to effects of environmental contamination by heavy metals including different forms of mercury. Baltic seals as the top predators of the marine ecosystem are even more endangered due to (considerable) longevity as well as a long biological half-time of toxin elimination. The concentrations of mercury in seals from the Baltic is poorly known, thus the aim of this work is to determine and...

• Speciation of heavy metal compounds in samples of biota from marine ecosystems

  Publikacja

  • G. Bajger-Nowak
  • P. Konieczka
  • J. Namieśnik

  - CHEMICAL SPECIATION AND BIOAVAILABILITY - Rok 2011

  It has become increasingly evident that the toxicity, mobility, bioavailability and bioaccumulation of metals are dependent on the particular physico-chemical form in which the element occurs in the environment. Special attention is paid to metals, which are essential for the proper functioning of organisms if present in appropriate amounts but are toxic if in excess (i.e. Se, Cr, Zn), and also to non-essential elements (i.e. Hg,...

• Integration of Geographic Information Systems for Monitoring and Dissemination of Marine Environment Data

  Publikacja

  • M. Kulawiak
  • M. Moszyński

  - Rok 2011

  Zastosowanie Systemów Informacji Przestrzennej (GIS) do celu monitorowania i wizualizacji różnych procesów środowiska morskiego jest dziedziną badaną od końca XX wieku. W ostatnich latach rozwój szerokopasmowego dostępu do Internetu oraz dostępność klastrów obliczeniowych pozwalają na wykonywanie czasochłonnych i wymagających operacji, takich jak analizy przestrzenne, w sposób zdalny. Jakkolwiek do tej pory sieciowe Systemy Informacji...

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• Bioconversion of marine waste biomass for biofuel and value-added products recovery

  Publikacja

  • A. Parvathy
  • R. Anu
  • R. Yukesh
  • G. Sakthinathan
  • O. Karthikeyan
  • J. Rajesh

  - Rok 2020

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• 3D visualisation and monitoring of marine pollutant aggregations in Web-based GIS

  Publikacja

  • Z. Łubniewski
  • K. Bikonis
  • J. Demkowicz
  • A. Partyka
  • A. Stepnowski

  - HYDROACOUSTICS - Rok 2006

  Przedstawiony internetowy GIS służy do integracji, przetwarzania i wizualizacji pochodzących z wielu źródeł danych o różnych komponentach środowiska morskiego, w tym o zanieczyszczeniach. Jako przykład przedstawiono wyniki trójwymiarowego modelowania rozprzestrzeniania się wylewu olejowego w morzu.

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• Thermohydraulic and thermoeconomic performance of a marine heat exchanger on a naval surface ship

  Publikacja

  • c. ezgi
  • N. Özbalta
  • I. Girgin

  - Applied Thermal Engineering - Rok 2014

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