Wyniki wyszukiwania dla: VORTEX CHAMBER PUMP, CFD, BINGHAM FLUID, COAL-WATER SLURRY, JET TECHNOLOGY

• Time-Averaged Parameters of the Circular Synthetic Jet for Different Dimensionless Stroke Length

  Publikacja

  • E. Smyk
  • P. Gil
  • J. Wilk

  - JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME - Rok 2024

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• Other specified disorders of amniotic fluid and membranes - Female, 43 - Tissue image [3070630010181361]

  Dane Badawcze

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of PLACENTA 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.

• Other specified disorders of amniotic fluid and membranes - Female, 43 - Tissue image [3070630010186091]

  Dane Badawcze

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of PLACENTA 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.

• Other specified disorders of amniotic fluid and membranes - Female, 43 - Tissue image [3070630010187701]

  Dane Badawcze

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of PLACENTA 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.

• Other specified disorders of amniotic fluid and membranes - Female, 43 - Tissue image [3070630010188841]

  Dane Badawcze

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of PLACENTA 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.

• Other specified disorders of amniotic fluid and membranes - Female, 43 - Tissue image [307063001018721]

  Dane Badawcze

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of PLACENTA 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.

• Other specified disorders of amniotic fluid and membranes - Female, 43 - Tissue image [3070630010188341]

  Dane Badawcze

  open access

  • Gdański Uniwersytet Medyczny

  This is the histopathological image of PLACENTA 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.

• Comparative analysis of the theoretical models of ideal propulsor, ideal fluid brake, ideal screw propeller and ideal axial wind turbine

  Publikacja

  • T. Koronowicz
  • J. Szantyr

  - Polish Maritime Research - Rok 2013

  The article presents a detailed discussion of four different fluid dynamics devices.These devices are presented with all relevant mathematical formulae regarding the forces, the power and the efficiency. It is demonstrated that application of the Betz theorem to axial wind turbines is not correct and it underestimates the maximujm achievable efficiency. This conclusion is supported by numerical calculations.

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• Spatial Differences in the Chemical Composition of Surface Water in the Hornsund Fjord Area: A Statistical Analysis with A Focus on Local Pollution Sources

  Publikacja

  • K. Kozioł
  • R. Marek
  • F. Pawlak
  • S. Chmiel
  • Ż. Polkowska

  - Water - Rok 2020

  Surface catchments in Svalbard are sensitive to external pollution, and yet what is frequently considered external contamination may originate from local sources and natural processes. In this work, we analyze the chemical composition of surface waters in the catchments surrounding the Polish Polar Station in Svalbard, Hornsund fjord area. We have pooled unpublished and already published data describing surface water composition...

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• Computer-Supported Polysensory Integration Technology for Educationally Handicapped Pupils

  Publikacja

  • M. Lech
  • A. Czyżewski
  • W. Kucharski
  • B. Kostek

  - LECTURE NOTES IN COMPUTER SCIENCE - Rok 2014

  In this paper, a multimedia system providing technology for hearing and visual attention stimulation is shortly presented. The system aims to support the development of educationally handicapped pupils. The system has been presented in the context of its configuration, architecture, and therapeutic exercise implementation issues. Results of pupils’ improvements after 8 weeks of training with the system are also provided. Training...

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• Lubricity-based estimation of the changes in the brake fluid quality

  Publikacja

  • P. Bzura

  - Journal of KONES - Rok 2007

  W artykule przedstawiono, na podstawie wyników badań laboratoryjnych, możliwość określenia wartości smarności łączącej własności fizykochemiczne i reologiczne płynów. Smarność, która została określona dla trzech płynów hamulcowych (oznaczenia zastrzeżone przez firmę zlecającą porównanie ich własności), umożliwiła wybór najlepszego, który pewnie zostanie zastosowany w instalacjach hamulcowych samochodów.

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• Acoustic heating produced in resonators filled by a newtonian fluid

  Publikacja

  • A. Perelomova

  - CANADIAN JOURNAL OF PHYSICS - Rok 2012

  Acoustic heating in resonators is studied. The governing equation of acoustic heating is derived by means of the special linear combination of conservation equations in differential form, allowing the reduction of all acoustic terms in the linear part of the final equation, but preserving terms belonging to the thermal mode responsible for heating. This equation is instantaneous and includes nonlinear acoustic terms that form a...

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• Generation of the vorticity Mode by Sound in a Relaxing Maxwell Fluid

  Publikacja

  • A. Perelomova
  • P. Wojda

  - ACTA ACUSTICA UNITED WITH ACUSTICA - Rok 2010

  Praca dotyczy nowej teorii akustyki nieliniowej badającej związki modu akustycznego z modem wirowym w płynach z relaksacją maxwellowską. Wyprowadzone zostało równanie ewolucyjne dla modu wirowego wywołanego dźwiękiem, które można stosować zarówno do dźwięków okresowych, jak i aperiodycznych. Przedstawiono przykłady generacji modu wirowego w płynie maxwellowskim z relaksacją wywołanego okresową i aperiodyczną falą dźwiękową.

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• mRNA profiling for vaginal fluid and menstrual blood identification

  Publikacja

  • J. Jakubowska
  • A. Maciejewska
  • R. Pawłowski
  • K. Bielawski
  • K. P. Bielawski

  - Forensic Science International-Genetics - Rok 2013

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• Tumor Interstitial Fluid Formation, Characterization, and Clinical Implications

  Publikacja

  • M. Wagner
  • H. Wiig

  - Frontiers in Oncology - Rok 2015

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• Tracer investigations of dynamic properties of fluid flow reactor.

  Publikacja

  • J. Sawicki
  • M. Skuza
  • S. Bering

  - Rok 2003

  Omówiono podstawowe metody opisu rozkładu czasu przebywania cieczy w reaktorze oraz sposób jego wyznaczania metodą znacznikową. Szczegółowo omówiono wyniki badań laboratoryjnych dla separatora substancji olejowych i dla złoża biologicznego.

• Rational determination of dynamic characteristics of fluid-flow Reactors

  Publikacja

  • J. Sawicki

  - Rok 2005

  Podstawowa charakterystykę reaktorów stanowi krzywa rozkładu czasu zatrzymania. Jej dokładne wyznaczenie jest trudne i kosztowne. W pracy zaproponowano wykorzystanie metody aproksymacyjnej, polegającej na zastąpieniu rzeczywistej funkcji przez jej przebieg uproszczony. Zaproponowano aproksymację rozkładem trójkątnym. Na konkretnym przykładzie pokazano, że metoda ta daje lepsze wyniki niż powszechnie stosowany model przepływu tłokowego.

• The Evaluation of Quality of the Co-Firing Process of Glycerine Fraction with Coal in the High Power Boiler

  Publikacja

  • R. Kozdrach
  • A. Stepien
  • R. Kozdrach

  - C - Rok 2022

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• Influence of hydrothermal treatment on selenium emission-reduction and transformation from low-ranked coal

  Publikacja

  • H. Ullah
  • B. Chen
  • A. Shahab
  • F. Naseem
  • A. Rashid
  • L. Lun
  • B. Yousaf
  • S. Khan

  - Journal of Cleaner Production - Rok 2020

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• Use of Bioluminescence for Monitoring Brown Coal Mine Waters from Deep and Surface Drainage

  Publikacja

  • R. Staniszewski
  • D. Cais-Sokolińska
  • Ł. Kaczyński
  • P. Bielska

  - ENERGIES - Rok 2021

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• Large-scale Rowe cell experimental study on coefficient of consolidation of coal mine tailings

  Publikacja

  • B. Szczepan
  • E. Pilecka
  • B. S. Olek

  - E3S Web of Conferences - Rok 2019

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• Validation of an Agent and Ontology-based Information Technology Assessment System

  Publikacja

  • C. Orłowski
  • A. Ziółkowski
  • A. Czarnecki

  - CYBERNETICS AND SYSTEMS - Rok 2010

  The aim of this paper is to present a new method of the validation of an Agent and Ontology-based Information Technology Assessment System. In the introduction part of the paper, the characteristics of the proposed multi-agent system are presented. Next, some important details regarding the ontology functionality of this system are described and an approach to its verification process is proposed. The approach employs semantic...

• Advanced Scalar-valued Intensity Measures for Residual Drift Prediction of SMRFs with Fluid Viscous Dampers

  Publikacja

  • F. Kazemi
  • B. Mohebi
  • N. Asgarkhani
  • A. Yousefi

  - International Journal of Structural Integrity - Rok 2023

  Maximum Residual Inter-story Drift Ratio (RIDRmax) plays an important role to specify the state of a structure after severe earthquake and the possibility of repairing the structure. Therefore, it is necessary to predict the RIDRmax of Steel Moment-Resisting Frames (SMRFs) with high reliability by employing powerful Intensity Measures (IMs). This study investigates the efficiency and sufficiency of scalar-valued IMs for predicting...

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• Integrated production technology of cylindrical surfaces by turning and burnishing

  Publikacja

  • W. Przybylski

  - Advances in Manufacturing Science and Technology - Rok 2016

  The method is based on a combination of previously used two separate operations namely machining and burnishing in a one complex operation implemented on a lathe.In the case of machining shafts and hydraulic cylinders of steel C45 is possible to obtain a surface roughness Ra=0,16 - 0,32 micrometers, dimensional accuracy class 7-8 according to ISO standards, and increase in the hardness of the surface up to 40%.

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• Prof. Haitham Abu-Rub - A Visit to Poland's Gdansk University of Technology

  Publikacja

  • J. Guziński

  - IEEE Industrial Electronics Magazine - Rok 2015

  Report on visit of Prof. Haitham Abu-Rub in Gdansk University of Technology. Speech on the Smart Grid Centre. Visit in the new smart grid laboratory of the GUT, the Laboratory for Innovative Power Technologies and Integration of Renewable Energy Sources (LINTE^2).

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• Survey on Applications of Multimedia Technology to Examine Impact of Roadside Advertising on Drivers

  Publikacja

  • A. Czyżewski
  • A. Korzeniewski
  • P. Odya
  • P. Szczuko
  • B. Kostek

  - Rok 2015

  The correct location of ads, both static and moving, in close proximity of the roadway is an issue of high significance in the context of road safety. This publication aims to provide support in solving these issues by presenting a range of options for the implementation of extensive, multi-faceted research, using modern technology to allow an objective assessment of the risks arising from the presence of advertising spots in the...

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• Time dependent slurry viscosity of finegrained silicon dioxide particles.Second International Conference on Engineering Rheology ICER 2003.

  Publikacja

  • B. Kawalec-Pietrenko
  • D. Konopacka-Łyskawa

  - International Journal of Applied Mechanics and Engineering - Rok 2003

  Cząstki dwutlenku krzemu otrzymywano w wyniku reakcji chemicznej krzemianu sodowego z gazowym dwutlenkiem węgla. Krzemian sodowy był rozpuszczony w wodnym roztworze glikolu trójetylenowego. Dwutlenek węgla wprowadzano do strefy wznoszenia reaktora airlift z wewnętrzną cyrkulacją. Obserwowano położenie maksimów na krzywych zależności lepkości zawiesiny reakcyjnej od czasu.

• Gas hold up and time dependent slurry viscosity during the the precipitation of fine grained silicon dioxide particles.

  Publikacja

  • B. Kawalec-Pietrenko
  • D. Konopacka-Łyskawa

  - Inżynieria i Aparatura Chemiczna - Rok 2003

  Badano zmiany stopnia zatrzymania gazu i lepkości zawiesiny podczas precypitacji dwutlenku krzemu z krzemianu sodowego za pomocą dwutlenku w reaktorze airlift z wewnętrzną cyrkulacją. Badano wpływ parametrów procesowych na akumulację mikropęcherzy w zawiesinie.

• Factors affecting the quality of bottled water

  Publikacja

  • M. Diduch
  • Ż. Polkowska
  • J. Namieśnik

  - Journal of Exposure Science and Environmental Epidemiology - Rok 2012

  The ever-increasing popularity of bottled water means that it is important to analyze not only its mineral content but also, above all,its content of possible contaminants, especially the organic ones. In this respect, bottled waters are a special case, because apartfrom organic chemical contaminants derived from the well from which they were acquired, their secondary contamination is alwayspossible, during treatment or storage...

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• 2022 Water treatment for consumption and industrial purposes

  Kursy Online

  • I. E. Kłosowska-Chomiczewska

• The progress in technology of biodegradable polymers

  Kursy Online

  • H. Janik

  Kurs obejmuje 15 godz. Wykładów (18-22.01. 2021)z zagadnień związanych z omówieniem różnych polimerów biodegradowalnych, ich syntezą i postąpami w otrzymywaniu, analizie, zastosowaniu.

• Electrifying the bus network with trolleybus: Analyzing the in motion charging technology

  Publikacja

  • M. Bartłomiejczyk
  • P. Caliandro

  - APPLIED ENERGY - Rok 2025

  Currently, electric buses are becoming more and more popular, and their number in operation is increasing. The range of electric buses is also increasing and solutions that seem to be working almost without fixed infrastructure are being promised. However, this requires the use of high-capacity batteries, which increases the weight and price of the vehicle and causes high costs of battery replacement during operation. Moreover,...

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• Desalination of geothermal water by membrane distillation

  Publikacja

  • M. Gryta
  • M. Palczynski
  • M. Gryta

  - Membrane Water Treatment - Rok 2011

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• Assessing the industrialization progress of hydrodynamic cavitation process intensification technology: a review

  Publikacja

  • X. Sun
  • H. Xu
  • X. Xuan
  • S. Manickam
  • G. Boczkaj
  • B. Wang

  - Current Opinion in Chemical Engineering - Rok 2024

  Hydrodynamic cavitation (HC) is widely acknowledged as a promising green approach for enhancing various production and waste management processes, such as water treatment, sludge pretreatment, lignocellulosic biomass (LCB) pretreatment, emulsification, and food processing. Despite demonstrating superior industrialization potential compared with other emerging technologies such as ultrasound and microwave, the widespread commercial...

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• Wpływ właściwości cieczy hydraulicznej na wartość skoków ciśnienia w komorach pomp tłoczkowych osiowych

  Publikacja

  • P. Patrosz
  • M. Zaleska

  - Rok 2018

  Publikacja dotyczy badań skoków ciśnienia w komorach roboczych pomp tłoczkowych osiowych. Skupiono się w nim na wpływie właściwości cieczy hydraulicznej na wartość skoków ciśnienia. Przeanalizowano wpływ takich parametrów jak: -gęstość, -lepkość, -ściśliwość, -zapowietrzenie. Do określenia wpływu właściwości cieczy na skoki ciśnienia wykorzystano badania laboratoryjne i symulacje komputerowe.

• Numerical Studies on Propellers in Open Water and behind Hulls aiming to support the Evaluation of Propulsion Tests

  Publikacja

  • H. Streckwall
  • T. Lucke
  • T. Bugalski
  • J. Felicjancik
  • T. Goedicke
  • L. Greitsch
  • A. Talay
  • M. Alvar

  - Rok 2016

  A RANS based numerical analysis of propellers can contribute considerably to our understanding of propeller/hull interaction. It may also allow for a review of scaling procedures on results from experimental fluid dynamics (EFD). Using various RANS codes (Fluent, CFX, STAR-CCM+ and FreSCo+) on common test cases the authors first focused on propeller open water (POW) calculations. Next we simulated the propeller hull interaction...

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• THE 3D MODEL OF WATER SUPPLY NETWORK WITH APPLICATION OF THE ELEVATION DATA

  Publikacja

  • A. Sobieraj-Żłobińska
  • B. Wieczorek

  - Rok 2017

  3D visualization is a key element of research and analysis and as the source used by experts in various fields e.g.: experts from water and sewage systems. The aim of this study was to visualize in three-dimensional space model of water supply network with relief. The path of technological development of GESUT data (Geodezyjna Ewidencja Sieci Uzbrojenia Terenu – geodetic records of public utilities) for water supply and measurement...

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• Microjet technology as a perspective intensification method for high performance heat exchangers

  Publikacja

  • D. Mikielewicz
  • J. Wajs
  • M. Bajor

  - Rok 2015

  In the paper two oryginal designs of compact heat exchangers with intensification effect produced by microjets are presented. The technology of microjets manufacturing is an "inhouse" patented design. The idea of such heat exchanger is shown together with the flow and thermal characteristics of the prototypes. The results of performer measurements are satisfactory and encourage for further research of the original designs.

• Predicting the seismic collapse capacity of adjacent SMRFs retrofitted with fluid viscous dampers in pounding condition

  Publikacja

  • F. Kazemi
  • B. Mohebi
  • R. Jankowski

  - MECHANICAL SYSTEMS AND SIGNAL PROCESSING - Rok 2021

  Severe damages of adjacent structures due to structural pounding during earthquakes have emphasized the need to use some seismic retrofit strategy ‎to enhance the structural performance. ‎The purpose of this paper is to study the influence of using linear and nonlinear Fluid Viscous Dampers (FVDs) on the seismic collapse capacities of adjacent structures prone to pounding and proposing modification factors to modify the ‎median...

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• Integrating Digital Twin Technology Into Large Panel System Estates Retrofit Projects

  Publikacja

  • P. Duch-Żebrowska
  • K. Zielonko-Jung

  - Urban Planning - Rok 2021

  As sustainability is now a standard for the proposed developments, the focus ought to be shifted towards the existing buildings and, among them, the worldwide stock of large panel system (LPS) buildings. Major upgrades and retrofits were done to some of the LPS estates in Germany and France, but a leading sustainable way must still be developed for LPS buildings in Eastern European countries, where apartments in those half‐a‐century‐old...

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• Analysis of the process of water entry of an amphibious vehicle

  Publikacja

  • M. Gerigk
  • M. Kraskowski
  • Z. Burciu

  - The Archives of Automotive Engineering - Archiwum Motoryzacji - Rok 2012

  The paper presents a method of computational and experimental analysis of the process of water entry of an amphibious vehicle. The computational method is based on the Reynolds Averaged Navier-Stokes Equations (RANSE) solver and the xperiment was carried out in the towing tank at Ship Design and Research Centre S.A. with the use of a scale model. The analysis was focused on the safety of water entry, i.e. the maximum pitch and...

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• Microbiological analysis of sea water and bottom sediments in Kosakowo – Gdańsk profile

  Dane Badawcze

  open access

  • M. Bartoszewicz

  This dataset contains the results of microbiological analysis of sea water and bottom sediments in Kosakowo – Gdańsk profile in 2013 - 2014 . The tested material consisted of water samples (surface water and bottom water) and bottom sediment samples. Water and sediment samples were analysed for the following: number of Enterobacteriaceae genus bacteria,...

• Krzysztof Czerwionka dr hab. inż.

  Osoby

  Katedra Technologii w Inżynierii Środowiska

• Microwave Alignment and Displacement Sensors in Groove Gap Waveguide Technology

  Publikacja

  • A. Karami Horestani
  • Z. Shaterian
  • M. Mrozowski

  - Rok 2022

  This paper is aimed at presenting highly sensitive microwave displacement and alignment sensors. With this goal, the method of realizing mechanically tunable cavity resonators in groove gap waveguides technology is presented. The resonance frequency of the cavity is then used for displacement sensing. It is also demonstrated that the symmetry properties of a pair of groove gap waveguide cavities can be used to improve the robustness...

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• Technology-Driven Internationalization: Central-Eastern European Perspective

  Publikacja

  • E. Lechman

  - Rok 2017

  Since the 1990s of the twentieth century onward, Central-Eastern European countries have been extensively involved in these two processes—regarding increasing share of ICT and high-tech exports in country’s total export value—and additionally, across these economies, changes in the level of access to and use of ICT have been observed. The main target of this research is to contribute to the present state of the art, by proving...

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• Photolytic and Photocatalytic Recreational Water Treatment

  Publikacja

  • A. Haenel
  • A. Małachowska
  • A. Grabowiec
  • J. Hupka

  - Rok 2014

  Disinfection is one of the most important steps during recreational water treatment. Nevertheless, disinfection by-products are formed by conventional disinfectants, which pose several health threats. The concentration of disinfection by-products can be decreased by photolytic and photocatalytic treatment. Medium-pressure mercury lamp, UV-LEDs and solar irradiation were investigated and evaluated considering emitted wavelength,...

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• Multi-Objective Water Distribution Systems Control of Pumping Cost, Water Quality, and Storage-Reliability Constraints

  Publikacja

  • W. Kurek
  • A. Ostfeld

  - JOURNAL OF ENVIRONMENTAL MANAGEMENT - Rok 2013

  This work describes a multi-objective model for trading-off pumping cost and water quality for water distribution systems operation. Constraints are imposed on flows and pressures, on periodical tanks operation, and on tanks storage. The methodology links the multi-objective SPEA2 algorithm with EPANET, and is applied on two example applications of increasing complexity, under extended period simulation conditions and variable...

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• Proton transfer reactions for ionized water clusters

  Publikacja

  • T. Wròblewski
  • L. Ziemczonek
  • G. Karwasz

  - CZECHOSLOVAK JOURNAL OF PHYSICS - Rok 2004

  Calculations of formation energies of the ionized water clusters and energies of reactions between small (including less than eight water molecules) neutral and positively ionized water clusters are presented. Moreover, we discuss some reaction paths between neutral and positively charged dimers, trimers and tetramers and proton transfer reactions (PTR) between cyclic clusters and H3O+ ions which can appear in beam experiments...

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• WATER RESOURCES RESEARCH

  Czasopisma

  ISSN: 0043-1397 , eISSN: 1944-7973

• Whirling system of water exchangein breeding pools

  Publikacja

  • K. Matej-Łukowicz
  • J. Sawicki
  • P. Wielgat
  • P. Zima
  • I. Pawliczka Vel Pawlik

  - Archives of Hydro-Engineering and Environmental Mechanics - Rok 2016

  To secure the proper conditions of life for sea mammals existing in closed systems one has to maintain the character of the breeding basins (i.e. shape, dimensions, facing of walls and bottom, quality and motion of water) as natural as possible. An appropriate system of water exchange plays a very important role here. A full renewal of water is time-consuming, expensive and troublesome, so can be made only periodically, and should...

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