Search results for: DRINKING WATER QUALITY

• 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.

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

  Publication

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

  - Mechanik - Year 2015

  Full text to download in external service

• 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...

• 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.

  Full text available to download

• 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%.

• Treatment Wetland effluent quality improvement by usage sorbents of various origin

  Publication

  • M. Kasprzyk

  - E3S Web of Conferences - Year 2019

  TWs are finding as low-cost and also effective system to treat domestic wastewater. The aim of this study is to find suitable adsorbing material for application in an additional treatment unit where treatment wetlands do not provide sufficient PO4 3- reduction level. Material M1 is a fine-grained by-product of thermal treatment of carbonate-siliceous rock (opoka) with high content of calcium carbonate CaCO3 in temperature 700°C....

  Full text available to download

• 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...

  Full text available to download

• 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...

  Full text available to download

• PARTICLE SIZE ANALYSIS OF SUSPENSIONS IN REMOVING OF ORGANIC MATTER AND PHOSPHORUS FROM WASTEWATER AND SURFACE WATER

  Publication

  • A. Lang
  • K. Kołecka

  - Architecture Civil Engineering Environment - Year 2012

  In this paper the particle size of suspended solids in the removing of organic matter and phosphorus compounds from lake water and wastewater treated in the Ecological Treatment Systems (ETS) was analyzed. The invesigated materials were taken from two ETS located in Pomerania Region/Poland. Object in Swarzewo is 3rd stage of biological treatment of municipal wastewater, while object in Kartuzy has task to remove a phosphorus from...

• Canadian Water Resources Journal

  Journals

  ISSN: 0701-1784 , eISSN: 1918-1817

• Journal of Water and Climate Change

  Journals

  ISSN: 2040-2244

• Journal of Water and Land Development

  Journals

  ISSN: 1429-7426 , eISSN: 2083-4535

• CLEAN-SOIL AIR WATER

  Journals

  ISSN: 1863-0650 , eISSN: 1863-0669

• Meteorology Hydrology and Water Management

  Journals

  ISSN: 2299-3835 , eISSN: 2353-5652

• Journal of Water Management Modeling

  Journals

  ISSN: 2292-6062

• WEM-WATER ENGINEERING & MANAGEMENT

  Journals

  ISSN: 0273-2238

• Journal of Water Process Engineering

  Journals

  ISSN: 2214-7144

• 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

• 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

• JOURNAL OF SOIL AND WATER CONSERVATION

  Journals

  ISSN: 0022-4561 , eISSN: 1941-3300

• ACS ES&T Water

  Journals

  eISSN: 2690-0637

• Journal of Water Chemistry and Technology

  Journals

  ISSN: 1063-455X , eISSN: 1934-936X

• Science of Soil and Water Conservation

  Journals

  ISSN: 2096-2673

• Sustainable Water Resources Management

  Journals

  ISSN: 2363-5037 , eISSN: 2363-5045

• Water Conservation Science and Engineering

  Journals

  ISSN: 2366-3340 , eISSN: 2364-5687

• Journal of Water and Environmental Nanotechnology

  Journals

  ISSN: 2476-7204 , eISSN: 2476-6615

• Numerical analysis of CO2-water separation in a horizontal double T-junction

  Publication

  • M. Amiri
  • P. Ziółkowski
  • K. Stasiak
  • D. Mikielewicz

  - Year 2022

  Carbon dioxide is considered one of the main factors leading to global warming. Considering the significant impacts of CO2 on climate change, various technologies have been developed in recent decades to control carbon emission, such as for example CO2 capture and storage. The developed cycle of a negative CO2 emission power plant includes some devices, out of which, separator plays an indispensable role. To this end, T-junction...

  Full text available to download

• Magnetic semiconductor photocatalysts for the degradation of recalcitrant chemicals from flow back water

  Publication

  • A. Zielińska-Jurek
  • Z. Bielan
  • I. Frąckiewicz
  • J. Strychalska-Nowak
  • M. Janczarek
  • T. Klimczuk

  - JOURNAL OF ENVIRONMENTAL MANAGEMENT - Year 2017

  In the present study treatability of persistent organic compounds from the flow back water after hydrauling fracturing was investigated. The combination of TiO2 photocatalyst and magnetic oxide nanoparticles enhance the separation and recoverable property of nanosized TiO2 photocatalyst. Fe3O4/ TiO2 and Fe3O4@SiO2/TiO2 nanocomposites were prepared by heteroagglomeration. The photocatalysts’ characteristics by X-ray diffractometry...

  Full text to download in external service

• Multi-sensor monitoring of the corrosion rate and the assessment of the efficiency of a corrosion inhibitor in utility water installations

  Publication

  • J. Orlikowski
  • K. Darowicki
  • S. Mikołajski

  - SENSORS AND ACTUATORS B-CHEMICAL - Year 2013

  This paper presents an implementation of the monitoring of the corrosion rate and the assessment of the efficiency of a corrosion inhibitor in a utility water installation using an automated corrosion monitoring system. Due to the fact that the corrosion inhibitor was added to water intended for human consumption, it was necessary to build a multi-sensor monitoring system. In order to implement corrosion monitoring using a linear...

  Full text to download in external service

• User experience evaluation study on the quality of 1K, 2K, and 4K H.265/HEVC video content

  Publication

  • P. Falkowski-Gilski
  • T. Uhl
  • C. Hoppe

  - Zeszyty Naukowe Akademii Morskiej w Szczecinie - Year 2024

  Nowadays, most content creators focus on distributing rich media at the highest possible resolution. Currently, the majority of sold consoles, media players, computer hardware, as well as displays and TVs are advertised as 4K-compatible. The same trend is observed in the case of popular online streaming services and terrestrial TV broadcasts. Generally speaking, it is assumed that higher bitrates provide higher subjective judgements....

  Full text available to download

• Quality assessments of electrochromic devices: the possibleuse of 1/f current noise

  Publication

  • J. Smulko
  • A. Azens
  • L. B. Kish
  • C. G. Granqvist

  - IONICS - Year 2007

  Elementy wykorzystujące zjawisko elektrochromizmu, potrafiące zmieniać przezroczystość za pomocą ładowania/rozładowania ładunkiem elektrycznym, wykonano na bazie laminatów pokrytych porowatą strukturą tlenków Ni oraz tlenków Wi-V. Oba laminaty, na które naniesiono przewodzącą warstwę In2O3, przedzielono warstwą elektrolitu. Obserwowano szumy typu 1/f w prądzie I płynącym w trakcie rozładowywania urządzenia. Gęstość widmowa mocy...

• Molecular mobility of water protons under interaction with chemically modified starches. DSC and HMR-relaxation investigations

  Publication

  • A. Sergeev
  • N. Szilkina
  • L. Wasserman
  • C. Szilow
  • H. Staroszczyk

  - Fizyka Chemiczna [czas. rosyjskojęzyczne] - Year 2017

  The change of water protons mobility in the system chemically modified starches – water were investigated by DSC and NMR-relaxation methods. The amount of unfrozen water at subzero temperature as well as additional unfrozen water which appears after gelatinization have lower values for chemically modified starches in comparison with the native starch. The proton spin-spin relaxation time Т2 for chemically modified starch samples,...

  Full text available to download

• A Comparison of Simplified Two-dimensional Flow Models Exemplified by Water Flow in a Cavern

  Publication

  • D. Prybytak
  • P. Zima

  - Archives of Hydro-Engineering and Environmental Mechanics - Year 2017

  The paper shows the results of a comparison of simplified models describing a two-dimensional water flow in the example of a water flow through a straight channel sector with a cavern. The following models were tested: the two-dimensional potential flow model, the Stokes model and the Navier-Stokes model. In order to solve the first two, the boundary element method was employed, whereas to solve the Navier-Stokes equations, the...

  Full text available to download

• Water uptake in protective organic coatings and its reflection in measured coating impedance

  Publication

  • A. Miszczyk
  • K. Darowicki

  - PROGRESS IN ORGANIC COATINGS - Year 2018

  Water uptake in commercially available epoxy coating on mild steel using impedance spectroscopy and gravimetry was studied. The water content in the coating was determined using the Brasher-Kingsbury equation and various methods of coating capacitance calculation used in the literature. The obtained results were compared with reference gravimetric data. An overestimation of values obtained from impedance data in relation to gravimetric...

  Full text to download in external service

• Calculating the Partition Coefficients of Organic Solvents in Octanol/Water and Octanol/Air

  Publication

  • M. Nedyalkova
  • S. Madurga
  • M. Tobiszewski
  • V. Simeonov

  - Journal of Chemical Information and Modeling - Year 2019

  Partition coefficients define how a solute is distributed between two immiscible phases at equilibrium. The experimental estimation of partition coefficients in a complex system can be an expensive, difficult, and time-consuming process. Here a computational strategy to predict the distributions of a set of solutes in two relevant phase equilibria is presented. The octanol/water and octanol/air partition coefficients are predicted...

  Full text to download in external service

• Closer look into the structures of tetrabutylammonium bromide–glycerol-based deep eutectic solvents and their mixtures with water

  Publication

  • P. Makoś-Chełstowska
  • R. Chromá
  • V. Andruch

  - JOURNAL OF MOLECULAR LIQUIDS - Year 2021

  In recent years, deep eutectic solvents (DES) and it’s mixture with water have become more and more attention as green solvents used in chemistry. However, there are only a few theoretical studies on the mechanisms of pure DES and DES-water complex formation. Therefore, the structural properties of tetrabutylammonium bromide–glycerol-based deep eutectic solvents and their mixtures with water have been investigated by means of Molecular...

  Full text available to download

• A review on hydrophobic electrospun nanofibers-based materials and membranes for water treatment: Challenges, outlook, and stability

  Publication

  • F. Janjhi
  • I. Chandio
  • D. Janwery
  • V. Vatanpour
  • R. Castro Munoz

  - SEPARATION AND PURIFICATION TECHNOLOGY - Year 2025

  Membrane technology is well recognized as a dependable means of supplementing the availability of potable water through processes such as water purification and desalination. Electrospun nanofiber membranes have garnered significant attention because of their advantageous features, including a greater specific surface area, increased porosity, reduced thickness, and popularity. Consequently, ENMs have emerged as an up-and-coming...

  Full text to download in external service

• Ongoing progress on novel nanocomposite membranes for the separation of heavy metals from contaminated water

  Publication

  • R. Castro Munoz
  • L. L. González-Melgoza
  • O. García-Depraect

  - CHEMOSPHERE - Year 2021

  Membranes, as the primary separation element of membrane-based processes, have greatly attracted the attention of researchers in several water treatment applications, including wastewater treatment, water purification, water disinfection, toxic and non-toxic chemical molecules, heavy metals, among others. Today, the removal of heavy metals from water has become challenging, in which chemical engineers are approaching new materials...

  Full text available to download

• Ti-Fe2O3/In2O3 as photoactive material: The role of the substrate in photoelectrochemical water oxidation

  Publication

  • M. Szkoda
  • A. Ilnicka
  • Z. Zarach
  • D. Roda
  • A. Nowak
  • K. Trzciński

  - JOURNAL OF ALLOYS AND COMPOUNDS - Year 2023

  The layers of Ti-Fe2O3/In2O3 were prepared on the different substrates using hydrothermal method: Ti/TiO2 nanotubes, Ti foil, FTO and FTO/TiO2. Materials were characterized using scanning electron microscopy, XRD, Raman, UV-Vis, and X-ray photoelectron spectroscopy and tested as photoanodes for water oxidation under illumination. The formation of heterojunction on the TiO2 nanotubes increases photocurrent of water oxidation at...

  Full text to download in external service

• Lucyna Nyka prof. dr hab. inż. arch.

  People

  Gdańsk University of Technology, Department of Urban Architecture and Waterscapes

  Lucyna Nyka (Ph.D., D.Sc., Prof.) is a Professor at the Faculty of Architecture, Gdańsk University of Technology, in 2008-2016 a Vice-Dean for Research, and since 2016 – Dean of the Faculty of Architecture.    Her research interests focus on issues concerning water-related architecture and urban landscapes. She is the author and co-author of many projects focused on urban renewal. She was an author of the EU-founded (Audiovisual...

• Water Science

  Journals

  ISSN: 1110-4929

• GROUND WATER

  Journals

  ISSN: 0017-467X , eISSN: 1745-6584

• Integrating modelling, simulation and data management tools to create a planning support system for the improvement of air quality by urban planning solutions

  Publication

  • J. Badach

  - Year 2023

  The urbanization pressure requires urban planners, designers, and policy makers to be more responsive to the challenges related to improving the quality of the urban environment and the living conditions of the inhabitants. One of the many environmental issues that need to be taken into account is urban air pollution. As the process of urban ventilation and air pollution dis-persion is significantly affected by the urban layout,...

  Full text to download in external service

• Leaf wettability and plant surface water storage for common wetland species of the Biebrza peatlands (northeast Poland)

  Publication

  • E. Papierowska
  • D. Sikorska
  • S. Szporak-Wasilewska
  • M. Kleniewska
  • T. E. Berezowski
  • J. Chormański
  • J. Szatyłowicz
  • G. Debaene

  - Journal of Hydrology and Hydromechanics - Year 2023

  Wetlands play a crucial role in buffering the effects of climate change. At the same time, they are one of the most endangered ecosystems on the globe. The knowledge of the water cycle and energy exchange is crucial for the practical preservation and exploiting their capabilities. Leaf wettability is an important parameter characterising the plant's ability to retain water on its surface, and is linked to the ecosystems' hydrological...

  Full text available to download