Search results for: cbd

• Wpływ temperatury suszenia osadów ściekowych na specjację wybranych metali ciężkich

  Publication

  • M. Krawczyk
  • P. Kowalik

  - Year 2005

  Przedstawiono wpływ temperatury suszenia osadów ściekowych na zmiany specjacji metali ciężkich (Zn, Cu, Cd, Pb) oraz określono stopień mobilności metali ciężkich w aspekcie ich późniejszego zagospodarowania. Ekstrakcja sekwencyjna metali ciężkich została wykonana wg schematu Tessier'a.

• 30‐Day morbidity and mortality of bariatric metabolic surgery in adolescence during the COVID‐19 pandemic – The GENEVA study

  Publication

  • R. Singhal
  • T. Wiggins
  • J. Super
  • A. Alqahtani
  • E. Nadler
  • C. Ludwig
  • A. Tahrani
  • K. Mahawar

  - Pediatric Obesity - Year 2021

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• Accumulation and fate of selected heavy metals in biological wastewater treatment system

  Publication

  • B. K. Chipasa

  - Year 2005

  Badano akumulację oraz stopień usuwania metali ciężkich (Cd, Cu, Pb, Zn) w systemie biologicznego oczyszczania ścieków. Porównano zawartość wybranych metali w ściekach surowych i oczyszczonych, a także ich stężenie w osadzie czynnym przed i po beztlenowej stabilizacji.

• Comparison of Cadmium Cd2+ and Lead Pb2+ Binding by Fe2O3@SiO2‐EDTA Nanoparticles – Binding Stability and Kinetic Studies

  Publication

  • A. Kulpa
  • J. Ryl
  • G. Skowierzak
  • A. Koterwa
  • G. Schroeder
  • T. Ossowski
  • P. Niedziałkowski

  - ELECTROANALYSIS - Year 2020

  This study describes the synthesis and characterization of ethylenediaminetetraacetic acid (EDTA) functionalized magnetic nanoparticles of 20 nm in size – Fe3O4@SiO2‐EDTA – which were used as a novel magnetic adsorbent for Cd(II) and Pb(II) binding in aqueous medium. These nanoparticles were obtained in two‐stage synthesis: covering by tetraethyl orthosilicate and functionalization with EDTA derivatives. Nanoparticles were characterized...

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• Selected aspects of customization of cognitive dimensions for evaluation of visual modeling languages.

  Publication

  • A. Bobkowska

  - Year 2004

  For the successful application of diagrams in software engineering, high quality visual modelling languages (VML) are required. There is a need for new effective methodologies of VML evaluation. This paper discusses selected aspects of applying cognitive dimensions as a basis of the evaluation. Then, it briefly presents CD-VML methodology which integrates the cognitive dimensions with a theory of visual modelling languages. Finally,...

• Removal of nonsteroidal anti-inflammatory drugs and analgesics from wastewater by adsorption on cross-linked β-cyclodextrin

  Publication

  • A. Skwierawska
  • D. Nowacka
  • K. Kozłowska-Tylingo

  - Water Resources and Industry - Year 2022

  We present a method using the material in the form of cross-linked β-cyclodextrin (CD) showing high efficiency in the simultaneous removal of hazardous pollutants from sewage, such as diclofenac (DIC), ibuprofen (IBU), ketoprofen (KETO), naproxen (NAPR), salicylic acid (SALI) and tramadol (TRAM). The material is stable and particularly easy to regenerate. The sorbent probably remembers the shape of the contaminants, which increases...

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• Improvement of opipramol base solubility by complexation with β-cyclodextrin

  Publication

  • K. Hemine
  • A. Skwierawska
  • B. Kamińska
  • M. Prześniak-Welenc

  - SUPRAMOLECULAR CHEMISTRY - Year 2018

  Opipramol (OPI), a tricyclic antidepressant and anxiolytic compound, is administered orally in the form of a dihydrochloride. Salt form of the drug has a higher solubility in water and hence bioavailability and stability. A similar effect can be achieved by closing the hydrophobic part of the drug molecule in the cyclodextrin cavity. The paper presents opipramol inclusion complexes with beta-cyclodextrin (β-CD) in 1:1 molar ratio....

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• (1H-Pyrazole-[kappa]N)bis(tri-tert-butoxysilanethiolato-[kappa]2O,S)cadmium

  Publication

  • K. Kazimierczuk
  • M. Bulman
  • A. Dołęga

  - ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE - Year 2012

  The CdII atom in the title complex, [Cd(C12H27O3SSi)2-(C3H4N2)], is penta-coordinated by two O and two S atoms from the O,S-chelating silanethiolate residue and one pyrazole N atom in a distorted trigonal-bipyramidal geometry. The pyrazole ligand forms an intramolecular N-H---O hydrogen bond.

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• Katedra Energoelektroniki i Maszyn Elektrycznych

  Research Teams

  • Department of Power Electronics and Electrical Machines

  * Modelowania, projektowania i symulacji przekształtników energoelektronicznych * Sterowania i diagnostyki przekształtników energoelektronicznych * Kompatybilności elektromagnetycznej przekształtników i regulowanych napędów elektrycznych * Jakości energii elektrycznej * Modelowania, projektowania i diagnostyki maszyn elektrycznych i transformatorów * Projektowania czujników i silników piezoelektrycznych * Technik CAD i CAE dla...

• WYTWARZANIE WSPOMAGANE KOMPUTEROWO CAD/CAM/CNC [Niestacjonarne][2021/22]

  e-Learning Courses

  • F. Kutt
  • R. Ryndzionek

• CAD. 3D modelling (2022/2023) BSc Arch, sem 2

  e-Learning Courses

  • D. Cyparski

  Conducting unit: Faculty of ArchitectureField of the study: ArchitectureAcademic year: 2022/2023 Summer TermDuration:  15 weeks (30 hours laboratory per term) Subject objectives: The course aim is to demonstrate the application of Computer Aided Design in preparation of architectural 3D models and project presentations. No previous CAD experience is necessary. Using hands-on exercises, students explore how to create project presentations...

• Numeryczna analiza możliwości zwiększenia efektywności grzewczej pompy ciepła, poprzez modyfikację skraplacza

  Publication

  • T. Muszyński
  • M. Meller

  - Chłodnictwo : organ Naczelnej Organizacji Technicznej - Year 2016

  W niniejszej pracy określono charakterystykę prostego modelu wymiennika ciepła bazującego na skraplaczu powietrznej pompy ciepła. Jest to helikoidalny rekuperator typu rura w rurze. Zaproponowano i poddano analizie numerycznej dwie metody intensyfikacji wymiany ciepła i zestawiono wyniki z modelem porównawczym. Zastosowane rozwiązania zwiększające strumień wymienianego ciepła spowodowały wzrost odbieranego przez wodę strumienia...

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• CAD w projektowaniu układów i systemów bardzo wysokiej częstotliwości - 2022

  e-Learning Courses

  • K. Nyka
  • K. Trzebiatowski
  • M. Mrozowski

  Celem przedmiotu jest zapoznanie studentów z narzędziami CAD stosowanymi w technice wysokich częstotliwości (i ich ograniczeniami). Przedmiot pozwala poznać specyficzne aspekty wspomaganego komputerem modelowania układów bardzo wysokich częstotliwości – od systemu do modelowania fizycznych własności elementów. 

• CAD w projektowaniu układów i systemów bardzo wysokiej częstotliwości - 2023/24

  e-Learning Courses

  • K. Nyka
  • K. Trzebiatowski
  • M. Mrozowski

  Celem przedmiotu jest zapoznanie studentów z narzędziami CAD stosowanymi w technice wysokich częstotliwości (i ich ograniczeniami). Przedmiot pozwala poznać specyficzne aspekty wspomaganego komputerem modelowania układów bardzo wysokich częstotliwości – od systemu do modelowania fizycznych własności elementów. 

• Archiwizacja i replikacja a bezpieczeństwo dokumentów w systemie ERS.

  Publication

  • J. Zieliński
  • H. Krawczyk

  - Studia Informatica Pomerania - Year 2003

  Praca prezentuje system ERS przeznaczony do archiwizowania i analizy badań endoskopowych oraz problemy związane z zapewnieniem wymaganego poziomu bezpieczeństwa aplikacji medycznych. Proponowane są trzy rozwiązania: archiwizacja na płytach CD-ROM, wykonanie zdalnej kopii zapasowej oraz sieciowa replikacja bazy danych.

• A decade of Poland`s integrated Road Safety Programme - economic develop-ment vs. road unsafety. W: [CD-ROM]. Conference proceedings. SORIC´02. 2nd Safety on Road Internationaload International Conference. Kingdom of Bah- rain, 21-23 October 2002. Bahrain: CTRS Univ. Bahrain**2002 [8 s. 5 rys. bibliogr. 5 poz. 10 lat Krajowego Programu Bezpieczeństwa Ruchu Drogowego w Polsce - rozwój ekonomiczny a niebezpieczeństwo ruchu.

  Publication

  • R. Krystek
  • J. Żukowska

  - Year 2002

  Referat zawiera analizę doświadczeń z dziesięciu lat pracy oraz wdrożeń Kra-jowego Programu Bezpieczeństwa Ruchu Drogowego GAMBIT. Przedstawia również analizę przyczyn gwałtownego spadku liczby- śmiertelnych ofiar wypadków dro-gowych w Polsce w roku 2001.

• Recent developments in automatic classification of musical instruments. W:[CD-ROM] Collected papers. First Pan-American/Iberian Meeting on Acoustics. 144 Meeting of the Acoustical Society of America. III Iberoamerican Cong- ress of Acoustics. 9o Mexican Congress of Acoustics. Cancun, Q. R. M‚xico, 2-6 Dec. 2002. [B.m.:ASA]**2002 paper 2aMU4, 7 s. 6 rys. 1 tab. bibliogr. 21 poz. Automatyczne rozpoznawanie muzyki - przykłady eksperymentów.

  Publication

  • B. Kostek

  - Year 2002

  W referacie dokonano przeglądu aktualnego stanu badań w dziedzinie automaty-cznego rozpoznawania muzyki. Przedstawiono też eksperymenty prowadzone aktu-alnie w Katedrze Dźwięku i Obrazu PG. Prace te dotyczyły rozpoznawania klasinstrumentów muzycznych i separacji duetów muzycznych. Pokazano przykładowewyniki i przedstawiono projekt prac do zrealizowania w przyszłych ekspery-mentach.

• Phytoavailability of potentially toxic elements from industrially contaminated soils to wild grass

  Publication

  • G. Yotova
  • B. Zlateva
  • S. Ganeva
  • V. Simeonov
  • B. Kudłak
  • J. Namieśnik
  • S. Tsakovski

  - ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY - Year 2018

  Topsoil and grass samples from 14 sites located in different distances from three copper mining factories and a copper smelter were collected in Srednogorie, Bulgaria. The paper discusses results of studies on the mobility of potentially toxic elements (As, Cd, Cr, Cu, Mn, Ni, Pb, Zn) from contaminated soils to wild grass Cynodon dactylon in terms of transfer (TF: soil to plant) and phytoavailability (PF: EDTA (ethylenediaminetetraacetic...

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• Rewizja przybliżonej metody szacowania oporu całkowitego kadłuba płynącego w przechyle

  Publication

  • A. Karczewski
  • K. Malinowska
  • H. Pruszko

  - Mechanik - Year 2019

  Na tle innych obiektów pływających jacht żaglowy wyróżnia się m.in. tym, że choć jest zaprojektowany jako pojazd poruszający się w pozycji wyprostowanej, to jednak znaczną część czasu żegluje w przechyle. Dlatego tak ważne jest poznanie zachodzących wtedy zjawisk, zwłaszcza związanych z oporem hydrodynamicznym. W artykule zaprezentowano porównanie oparte na weryfikacji wybranej, przybliżonej metody oszacowania zmian oporu całkowitego...

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• Discrete-continuous optimisation of an axial flow blood pump

  Publication

  • K. Tesch
  • K. Kaczorowska-Ditrich

  - Journal of Physics : Conference Series - Year 2018

  This paper presents results of discrete-continuous optimisation of an axial flow blood pump. Evolution Strategies (ES) are used as a global optimisation method in order to localise the optimal solution in relatively short time. The whole optimisation process is fully automated. This also applies to geometry modelling. Numerical simulations of the flow inside the pump is performed by means of the Reynolds-Average Navier-Stokes...

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• Effect of manufacturing errors of the pad sliding surface on the performance of the hydrodynamic thrust bearing

  Publication

  • L. Zoupas
  • M. Wodtke
  • C. Papadopoulos
  • M. Wasilczuk

  - TRIBOLOGY INTERNATIONAL - Year 2019

  In the present study, investigation of the effect of manufacturing errors on the performance of large tilting pad thrust bearings has been performed, following a CFD-based Thermohydrodynamic analysis of a single pad. A 3D model has been generated, including the pad, the lubricant film and the corresponding part of the collar. The pad has been assumed to be deformed about the pivot point, due to thrust loading. Manufacturing errors...

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• Model based evaluation of plant improvement at a large wastewater treatment plant (WWTP)

  Publication

  • J. Drewnowski
  • A. Remiszewska-Skwarek
  • F. Fernandez-Morales

  - JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING - Year 2018

  In this work, the effect of the improvement carried out at a large-scale wastewater treatment plant (WWTP) was evaluated, by means of modelling works, with the aim to determine the influence of the modernization over the process performance. After modernization, the energy consumption due to the aeration decreased about a 20% maintaining the effluent quality. In order to double-check the good effluent quality, modelling works were...

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• Rotordynamic characteristics of a chamber seal

  Publication

  • K. Kosowski
  • W. Włodarski

  - Year 2009

  The paper presents the results of numerical and experimental investigations into pressure forces generated in a turbine labyrinth seal of a modernized type. The experiments were performed on a single-stage air model turbine of the impulse type. The experiments were performed on a single-stage air model turbine of the impulse type. The experimental data were compared with theoretical results obtained by means of CFD Fluent Code....

• Influence of landfill leachate on municipal wastewater treatment - model plant(WWTP-MP)

  Publication

  • B. Quant
  • S. Fudala-Książek
  • A. Łuczkiewicz
  • E. Kulbat
  • K. Jankowska
  • K. Czerwionka
  • K. Olańczuk-Neyman

  - Year 2009

  Abstract In the current study, wastewater treatment model plant (WWTP-MP) was used to investigate the possibilities of landfill leachate co-treatment together with municipal wastewater. The WWT-MP, designed as an A2O multiphase system, was fed with the raw municipal wastewater (from the WWTP Gdańsk "Wschód'', Qav.=82x103 m3/d) with increasing, from 1 to 5 % (vol.), quantity of landfill leachate (collected from Gdańsk landfill ''Szadółki")....

• Mercury in the Polish part of the Baltic Sea: A response to decreased atmospheric deposition and changing environment

  Publication

  • A. Jędruch
  • L. Falkowska
  • D. Saniewska
  • A. Grajewska
  • M. Bełdowska
  • W. Meissner
  • E. Kalisińska
  • K. Duzinkiewicz
  • J. Pacyna

  - MARINE POLLUTION BULLETIN - Year 2023

  Our review of the literature showed that since the beginning of the socio-economic transformation in Poland in the 1990s, the downward trend in Hg emissions and its deposition in the southern Baltic Sea was followed by a simultaneous decrease in Hg levels in water and marine plants and animals. Hg concentrations in the biota lowered to values that pose no or low risk to wildlife and seafood consumers. However, in the first decade...

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• Investigation of H2:CH4 plasma composition by means of spatially resolved optical spectroscopy

  Publication

  • R. Bogdanowicz

  - ACTA PHYSICA POLONICA A - Year 2008

  The system based on spatially resolved optical emission spectroscopy dedicated for in situ diagnostics of plasma assisted CVD processes is presented in this paper. Measurement system coupled with chemical vapour deposition chamber by dedicated fiber-optic paths enables investigation of spatial distribution of species densities (Hx, H+, CH, CH+) during chemical vapour deposition process. Experiments were performed for a various...

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• Stacja podczyszczania wody w sieciach ciepłowniczych

  Publication

  • J. Marjanowski
  • J. Ostrowski
  • G. Tabisz
  • R. T. Bray

  - Instal - Year 2010

  W publikacji przedstawiono wyniki badań przeprowadzonych w skali technicznej zakresie poprawy jakości wody w sieciach ciepłowniczych. Przeprowadzone badania nad funkcjonalnością pracy stacji SPW (Stacji Podczyszczania Wody) produkcji CBW Unitex w miejskich systemach ciepłowniczych wykazały jego skuteczność w zakresie oczyszczania wody sieciowej i przywracania jej parametrów zgodnych z normą PN-85/C-04601. W wyniku zainstalowania...

• Compensation of pressure peaks in pwk-type hydraulic pumps

  Publication

  • L. Osiecki
  • P. Patrosz
  • T. Zawistowski
  • B. Landvogt
  • J. Piechna
  • B. Żyliński

  - Key Engineering Materials - Year 2012

  hydraulic axial pumps equipped with cam-driven commutation unit (pwk pumps) proved their high efficiency up to 55 mpa and ability to work self-sucking, even at high speed. displacement of pwk pump may easily be changed by moving its control cam. full discharge from hydrostatic forces makes such control possible by direct action of a low-energy actuator like proportional electromagnet or stepping motor. that eliminates heavy and...

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• Structures for parameterization, meshing and data exchange of topologically related surfaces of a ship hull

  Publication

  • A. Kniat

  - Year 2010

  This paper presents proposal of data structures for storage and processing of a parametric three-dimensional model of a midship hull sections. The model consists of coarse surfaces like: decks, frames, girders, stiffeners, brackets, partitions etc. bounded by topological relations. All workshop details are omitted as the model is intended for numeric calculations. Proposed data structures are prepared to facilitate changes in the...

• Innowacyjne technologie CAx / PLM

  Publication

  • K. Niklas
  • C. Żrodowski

  - Year 2014

  Wyzwania stawiane przed firmami projektowymi, produkcyjnymi, usługowymi to m.in. rosnące wymagania innowacyjności produktów. Zauważalna jest silna potrzeba wprowadzania nowych produktów wysokiej jakości, w krótkim czasie i konkurencyjnych cenach. Zauważalny jest również aspekt konieczności minimalizowania ryzyka związanego z wprowadzaniem nowych rozwiązań na rynek. W odpowiedzi na te wyzwania wprowadzono nowe technologie wspomagające...

• Digital Fingerprinting Based on Quaternion Encryption Scheme for Gray-Tone Images

  Publication

  • B. Czaplewski
  • M. Dzwonkowski
  • R. Rykaczewski

  - Journal of Telecommunications and Information Technology - Year 2014

  In this paper a new idea of digital images fingerprinting is proposed. The method is based on quaternion encryption in the Cipher Block Chaining (CBC) mode. Quaternion sare hyper-complex numbers of rank 4 and thus often applied to mechanics in three-dimensional space. The encryption algorithm described in the paper is designed for gray-tone images but can easily be adopted for color ones. For the encryption purpose, the algorithm...

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• The use of thin diamond films in fiber optic low-coherence interferometers”

  Publication

  • D. Majchrowicz
  • K. Karpienko

  - IOP Conference Series: Materials Science and Engineering - Year 2015

  In this paper we present the use of thin diamond films in fiber-optic low-coherence interferometers. Two kinds of diamond surfaces were used: undoped diamond film and boron-doped diamond film. They were deposited on glass plates as well as silicon layers. A conventionally used mirror was used as a reference layer. Diamond films were deposited using Microwave Plasma Enhanced Chemical Vapour Deposition (μPE CVD) system. Measurements...

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• OPERATIONAL PROBLEMS OF CONSTRUCTED WETLAND FOR LANDFILL LEACHATE TREATMENT: CASE STUDY

  Publication

  • H. Obarska-Pempkowiak
  • M. Gajewska
  • E. Wojciechowska

  - Journal of Ecological Engineering - Year 2013

  The present paper discusses the quality fluctuations of leachate from municipal landfill in Gdansk (Poland) over the last 5 years and the evaluation of a wetland system designed for treatment of the leachate. The research has been conducted during a 5-year period. The constructed wetland for leachate treatment was built in 2001; it consists of 2 horizontal subsurface flow reed beds, working in parallel. In the period 2005–2006...

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• Elimination of excretion of ibuprofen and its metabolites in horses

  Publication

  • E. Waraksa
  • M. Wójtowicz
  • D. Kwiatkowska
  • J. Namieśnik

  - Year 2015

  Analytical procedure based on application of gas chromatography-mass spectrometry (GC-MS) at the step of detection, identification and quantitation of ibuprofen (IBU) and detection of its metabolites – 1-hydroxyibuprofen (1-OH IBU) and carboxyibuprofen (CBX IBU) in horse urine by selected ion monitoring mode after sample preparation covering extraction at pH 3-4 and methylation has been used. The ions at m/z 161, 220 (methylated...

• The low coherence Fabry-Pérot interferometer with diamond and ZnO layers

  Publication

  • D. Majchrowicz
  • W. Den
  • M. Hirsch

  - Year 2016

  The authors present a fiber-optic Fabry-Pérot interferometer built with the application of diamond and zinc oxide (ZnO) thin layers. Thin ZnO films were deposited on the tip of a standard telecommunication single-mode optical fiber (SMF- 28) while the diamond layer was grown on the plate of silicon substrate. Investigated ZnO layers were fabricated by atomic layer deposition (ALD) and the diamond films were deposited using Microwave...

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• Effectiveness of pollutants removal in hybrid constructed wetlands – different configurations case study

  Publication

  • M. Gajewska
  • K. Jóźwiakowski
  • K. Cur

  - Year 2017

  In recent years, an increase in interest in hybrid constructed wetland systems (HCWs) has been observed. The aim of the paper is to compare different HCW configurations in terms of mass removal rates and efficiency of pollutants removal. Analysed data have been collected at multistage constructed wetlands in Poland, which are composed by at least two beds: horizontal subsurface flow (SSHF) and vertical subsurface flow (SSVF). The...

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• Spectroscopic Study of Plasma Polymerized a-C:H Films Deposited by a Dielectric Barrier Discharge

  Publication

  • T. Chandrashekaraiah
  • R. Bogdanowicz
  • E. Rühl
  • V. Danilov
  • J. Meichsner
  • S. Thierbach
  • R. Hippler

  - Materials - Year 2016

  Plasma polymerized a-C:H thin films have been deposited on Si (100) and aluminum coated glass substrates by a dielectric barrier discharge (DBD) operated at medium pressure using C2Hm/Ar (m = 2, 4, 6) gas mixtures. The deposited films were characterized by Fourier transform infrared reflection absorption spectroscopy (FT-IRRAS), Raman spectroscopy, and ellipsometry. FT-IRRAS revealed the presence of sp3 and sp2 C–H stretching and...

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• Production of certified reference materials - homogeneity and stability study based on the determination of total mercury and methylmercury

  Publication

  • M. Rutkowska
  • J. Namieśnik
  • P. Konieczka

  - MICROCHEMICAL JOURNAL - Year 2020

  Reference materials (RMs) play an important role in all elements of the quality assurance system of measurements. In this work, ``package'' 4 new CRMs (bottom sediment, herring tissue, cod tissue, cormorant tissue) were prepared and characterised to carry out the quality control in monitoring analysis of mercury and methylmercury in environmental samples. Materials - candidates were collected in Poland and south part of the Czech...

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• Mathematical modeling of hydrogen production performance in thermocatalytic reactor based on the intermetallic phase of Ni3Al

  Publication

  • J. Badur
  • M. Stajnke
  • P. Ziółkowski
  • P. Jóźwik
  • Z. Bojar
  • P. Ziółkowski

  - Archives of Thermodynamics - Year 2019

  The main goal of the following work is to adjust mathematical modelling for mass transfer, to specific conditions resulting from presence of chemical surface reactions in the flow of the mixture consisting of helium and methanol. The thermocatalytic devices used for decomposition of organic compounds incorporate microchannels coupled at the ends and heated to 500 oC at the walls regions. The results of the experiment were compared...

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• The Discrete-Continuous, Global Optimisation of an Axial Flow Blood Pump

  Publication

  • K. Tesch
  • K. Kaczorowska-Ditrich

  - FLOW TURBULENCE AND COMBUSTION - Year 2019

  This paper presents the results of the discrete-continuous optimisation of an axial flow blood pump. Differential evolution (DE) is used as a global optimisation method in order to localise the optimal solution in a relatively short time. The whole optimisation process is fully automated. This also applies to geometry modelling. Numerical simulations of the flow inside the pump are performed by means of the Reynolds-Average Navier-Stokes...

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• Effect of solar radiation on current-carrying capacity of PVC-insulated power cables – the numerical point of view

  Publication

  • S. Czapp
  • S. Szultka
  • A. Tomaszewski
  • A. Szultka

  - Tehnicki Vjesnik-Technical Gazette - Year 2019

  Power cables are usually buried in the soil, which results in their relatively high current-carrying capacity. However, there are cases in which the starting/final section of a cable line runs along a pole of an overhead power line. Power cables can be directly exposed to solar radiation then, and this negatively influences their current-carrying capacity as well as estimated life of the cables’ insulation. An analysis of thermal...

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• Removal efficiency of phenol by ozonation process with calcium peroxide from aqueous solutions

  Publication

  • Z. Honarmandrad
  • N. Javid
  • M. Malakootian

  - Applied Water Science - Year 2021

  Phenol has been introduced as a priority pollutant by the US Environmental Protection Agency. Advanced oxidation processes (AOPs) are one of the most efcient methods for removal of non-degradable organic pollutants in aqueous solutions. The removal efciencies of phenol and COD under optimal conditions pH=3, phenol concentration=5 mg/L, CaO2 concentration=0.025 mg/L, temperature 25 °C, 1 g/min ozonation rate and contact time=90...

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• Exploring the Benefits, Challenges, and Opportunities of Collaborative Business Intelligence

  Publication

  • P. Weichbroth
  • J. Zurada
  • C. Olszak

  - Year 2024

  In traditional business intelligence (BI) settings, the collective decision-making process is often hindered by the absence of knowledge and expertise exchange among various stakeholders, as well as lack of information sharing. The study delves into the concept of Collaborative BI, which aims to overcome these limitations by promoting collaboration, business networking, knowledge sharing, and improved communication among stakeholders....

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• The Impact of Sloshing Liquids on Ship Stability for Various Dimensions of Partly Filled Tanks

  Publication

  • P. Krata

  - TransNav - The International Journal on Marine Navigation and Safety of Sea Transportation - Year 2013

  Liquid sloshing phenomenon taking place in partly filled ships' tanks directly affects the stability of a vessel. However, only static calculations are carried out onboard ships nowadays and static transfer of liquid weight is taken into account in the course of routine stability calculation. The paper is focused on a dynamic heeling moment due to liquid sloshing in tanks onboard ships. A number of numerical simulations of liquid...

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• A Method of Assessment of the Liquid Sloshing Impact on Ship Transverse Stability

  Publication

  • P. Krata

  - TransNav - The International Journal on Marine Navigation and Safety of Sea Transportation - Year 2014

  Liquid sloshing phenomenon taking place in partly filled ships? tanks directly affects the stability of a vessel. However, only static calculations are carried out onboard ships nowadays and static transfer of liquid weight is taken into account in the course of routine stability calculation. The paper is focused on a dynamic heeling moment due to liquid sloshing in tanks onboard ships. The set of numerical simulations of liquid...

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• Thermal analysis of Magnetohydrodynamics (MHD) Casson fluid with suspended Iron (II, III) oxide-aluminum oxide-titanium dioxide ternary-hybrid nanostructures

  Publication

  • H. Kaneez
  • A. Baqar
  • I. Andleeb
  • M. B. Hafeez
  • M. Krawczuk
  • W. Jamshed
  • M. Eid
  • A. Abd-elmonem Assmaa

  - JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS - Year 2023

  This study is carried out to enhance and analyze the thermal performance of non-Newtonian Casson fluid by immersing Ternary hybrid nanoparticles Fe3O4-Al2O3-TiO2 uniformly. To model the behaviour of such complex phenomena mathematically, a system of complex transport differential equations is developed by utilizing a non-Fourier heat transfer model for energy transport. The non-dimensional system of transport equations involving...

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• Estimating the uncertainty of discharge coefficient predicted for oblique side weir using Monte Carlo method

  Publication

  • A. Y. Mohammed
  • A. Golijanek-Jędrzejczyk

  - FLOW MEASUREMENT AND INSTRUMENTATION - Year 2020

  Side weir is a hydraulic structure, which is used in irrigation systems to divert some water from main to side channel. It is installed at the entrance of the side channel to control and measure passing water into the side channel. Many studies provided side weir water surface profile and coefficient of discharge to measure water discharge diverted into the side channel. These studies dealt with different side weir shapes (rectangular,...

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• Trace elements content of surface peat deposits in the Solovetsky Islands (White Sea)

  Publication

  • K. Kozioł
  • J. Korzeniowska
  • D. Okupny
  • E. Bezak-mazur
  • S. Żurek

  - Mires and Peat - Year 2020

  Peatlands form environmental archives of trace element deposition. In this regard they are particularly valuable for areas such as the Arctic, where regular pollution monitoring is either impossible or extremely costly. The aim of this study was to assess pollution in the Solovetsky Islands (65° 05' N, 35° 53' E) by examining the spatial variability in trace element content of the uppermost layer of peat, immediately below the...

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• Selective transport of Pb(II) across polymer inclusion membrane using imidazole azocrown ethers as carriers.

  Publication

  • M. Matulewicz
  • K. Sadowska
  • J. Biernat

  - Physicochemical Problems of Mineral Processing - Year 2007

  Zbadano selektywność transportu jonów ołowiu(II) z równomolowych roztworów jonów Zn(II), Cd(II) i Pb(II) przez polimerowe membrany inkluzyjne (PIM) zawierające imidazolowe etery azokoronowe.Wykazano, że polimerowe membrany inkluzyjne z imidazolowymi azokoronami wykazują dużą stabilność, zależną w dużym stopniu od rodzaju jonoforu.

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• Engineering Graphics II (M:31997W1) 2023/24

  e-Learning Courses

  • J. Łubiński
  • B. Bastian

  The course covers subject scope of standardised methods used for the presentation of machine details in projected views, in technical design drawings. Detailed topics include: projection systems, principles of design documentation in machine design, rules in dimensioning and selection of views in technical drawing. Practical excercises are carried out and an introduction to CAD is performed.