Wyniki wyszukiwania dla: NATURE-BASED SOLUTION

• Controlling nodal displacement of pantographic structures using matrix condensation and interior-point optimization: A numerical and experimental study

  Publikacja

  • A. Manguri
  • N. Saeed
  • R. Jankowski

  - ENGINEERING STRUCTURES - Rok 2024

  This study presents an innovative approach for the precise control of nodal displacements in pantographic structures. The method is founded on the Matrix Condensation of Force Method, seamlessly integrated with an Interior Point Optimization algorithm. This combination offers a unique advantage by allowing users to manipulate displaced nodes within a defined coordination domain. Furthermore, this approach introduces the Interior...

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• Polaronic and Mott insulating phase of layered magnetic vanadium trihalide VCl3

  Publikacja

  • D. Mastrippolito
  • L. Camerano
  • H. Świątek
  • B. Šmíd
  • T. Klimczuk
  • L. Ottaviano
  • G. Profeta

  - PHYSICAL REVIEW B - Rok 2023

  Two-dimensional (2D) van der Waals (vdW) magnetic 3d-transition metal trihalides are a new class of functional materials showing exotic physical properties useful for spintronic and memory storage applications. In this article, we report the synthesis and electromagnetic characterization of single-crystalline vanadium trichloride, VCl 3 , a novel 2D layered vdW Mott insulator, which has a rhombohedral structure (R3, No. 148) at...

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• The energy concept of money

  Publikacja

  • O. Melnychenko

  - Zeszyty Naukowe Politechniki Śląskiej. Seria Organizacja i Zarządzanie - Rok 2023

  Purpose: This paper aims to provide the literature review seeking an answer whether energy can be used as a universal equivalent instead of money. Methodology: The author conducted a review of available literature and data sources related to the money theory and energy concept of money. Findings: It was found that the definition of energy as a general equivalent has a contextual and dynamic nature, and this field’s consolidation...

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• Optimization of adsorption of methyl orange from aqueous solution by magnetic CoFe2O4/ZnAl-layered double hydroxide composite using response surface methodology

  Publikacja

  • Y. M. Desalegn
  • E. A. Bekele
  • T. Amibo
  • T. D. Desissa

  - Materials Research Express - Rok 2023

  The CoFe2O4/ZnAl-layered double hydroxide (LDH) composite was successfully developed through a facile co-precipitation method, characterized, and applied as an effective adsorbent for the removal of methyl orange (MO) dye from aqueous solutions. The central composite design (CCD) of the response surface methodology (RSM) was employed to estimate and optimize process variables such as initial MO concentrations, solution pH, adsorbent...

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• SiC coating in ring-on-ring sliding with saline solution (0.9%) lubrication 5MPa, 0.1m/s specimn. #B37/#A35

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. saline solution (0.9%) lubrication

  Wear tests in sliding friction of SiC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, SiC over SiC . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9%). Tribometer: PT-3. Overall test time till coating penetration 3 min.Secimen...

• TiC coating in ring-on-ring sliding with saline solution (0.9%) lubrication 5MPa, 0.1m/s specimn. #A39/#B41

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. saline solution (0.9%) lubrication

  Wear tests in sliding friction of TiC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, TiC over TiC . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9%). Tribometer: PT-3. Overall test time till coating penetration 3 min.Secimen...

• SiC coating in ring-on-ring sliding with saline solution (0.9%) lubrication 5MPa, 0.1m/s specimn. #A35/#B37

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. saline solution (0.9%) lubrication

  Wear tests in sliding friction of SiC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, SiC over SiC . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9%). Tribometer: PT-3. Overall test time till coating penetration 3 min.Secimen...

• The Optical Transport Network Control Based on SDN Architecture

  Publikacja

  • M. Czajkowski
  • A. Gorczyca
  • S. Kaczmarek
  • K. Szałajda
  • P. Kaczmarek

  - Rok 2014

  The aim of this publication is to present research results on the usability of the Software-Defined Networking concept to control transport networks. For this purpose, an easy-to-use connection scheduler was developed capable of controlling connections in optical transport networks. The authors would like to present this solution and details of constructed SDN architecture implemented for modern optical transport solutions based...

• History-based dynamic weight voting for multi-agent systems

  Publikacja

  • A. Opaliński

  - Journal of Applied Computer Science - Rok 2014

  Taking decision in multi-agent systems may involve voting. Two basic voting protocols are surveyed in the paper. Then, a new history-based dynamic weight voting is proposed. This voting protocol allows for identification of the agents which contribute to the correct system decision. The proposed solution is contrasted with majority voting and with weighted average voting, to show its advantages

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• INVESTIGATION OF THE EFFECT OF THE ROCKET'S SUBORBITAL FLIGHT ON BIOFILM, ENZYMES AND BIOSYNTHESIS ON AUTONOMOUS, MODULAR AND SCALABLE PLATFORM FOR CONDUCTING EXPERIMENTS OF AN ASTROBIOTECHNOLOGICAL NATURE

  Publikacja

  • B. Rybacki
  • W. Wysocki
  • M. Jasiukowicz
  • B. Rybak
  • J. Lützen
  • N. Czortek
  • K. Loret
  • S. Krawczuk
  • N. Szulc
  • T. Zajkowski... i 3 innych

  - Rok 2022

  With new incentives for human space exploration, biotechnological experiments in orbit became imperative.Answering this need, we build an autonomous, modular, and scalable platform that enables those experiments onrockets. We called it AMBER. The aim of the payload of the R6 suborbital rocket is to perform an experiment tostudy the influence of rocket flights on biofilm, molecular...

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• Toxic metal pollution of aquatic ecosystems of European Union nature protection areas in a region of intensive agriculture (Lake Gopło, Poland)

  Publikacja

  • W. Juśkiewicz
  • P. Gierszewski

  - AQUATIC SCIENCES - Rok 2022

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• Investigation of the Effect of the Rocket's Suborbital Flight on Biofilm, Enzymes and Biosynthesis on Autonomous, Modular and Scalable Platforms For Conducting Experiments of an Astrobiotechnological Nature

  Publikacja

  • B. Rybacki
  • M. Jasiukowicz
  • B. Rybak
  • J. Godlewska
  • B. Krawczyk

  - Rok 2022

  With new incentives for human space exploration, biotechnological experiments in orbit became imperative. Answering this need, we build an autonomous, modular, and scalable platform that enables those experiments on rockets. We called it AMBER. The aim of the payload of the R6 suborbital rocket is to perform an experiment to study the influence of rocket flights on biofilm, molecular biology enzymes and biosynthesis using our platform....

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• Биополитика согласно Чеславу Милошу

  Publikacja

  • Z. Marek Kaźmierczyk

  - Rok 2020

  The paper shows the origins of the transformation of history into biohistory as well as politics into biopolitics in the writings of Miłosz. It takes into account his view of history when he was a child and his social experiences when he was at school. It proves that the fact that Miłosz comprehends the world within the categories of biopolitics results from projecting Darwinism on the historical past, and then projecting on...

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• Optical properties of MnO-B2O3 based glass

  Dane Badawcze

  open access

  • M. Łapiński

  MnO-B2O3 based glass with Au nanoparticles samples were  annealing for a various time (in a range of 24-96 hours) at various temperatures (from 340 up to 350 deg.). Presence of silver nanoparticles was detected by UV-VIS measurements. On the basis of change optical bandgap, Ag NPs was detected.

• The Application of Granulated Expanded Glass Aggregate with Cement Grout as an Alternative Solution for Sub-Grade and Frost-Protection Sub-Base Layer in Road Construction

  Publikacja

  • M. Kurpińska
  • B. Grzyl
  • M. Pszczoła
  • A. Kristowski

  - Materials - Rok 2019

  The purpose of the research was to assess the possibility of using granulated expanded glass aggregate (GEGA) with cement grout as a replacement of a sub-grade and frost-protection layer, made of natural fine aggregates (NATU), stabilized with a hydraulic binder. Instead of traditional parts of the road construction, such as the sub-grade and frost-protection layer with the application of fine aggregate, stabilized with cement,...

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• Multiple bifurcation in the solution set of the von Karman equations with S^{1}-symmetries

  Publikacja

  • J. Janczewska

  - BULLETIN OF THE BELGIAN MATHEMATICAL SOCIETY-SIMON STEVIN - Rok 2008

  Rozważmy cienką, sprężystą, kołową płytę, położoną na sprężystym podłożu, poddawaną działaniu sił ściskających koncentrycznie wzdłuż jej brzegu. Formy równowagi takiej płyty są rozwiązaniami równań von Karmana z dwoma parametrami określonych na dysku w R^{2}. Są to równania różniczkowe cząstkowe rzędu czwartego. Można je zapisać jako równanie operatorowe F(x,p)=0 w przestrzeniach Höldera, gdzie zmienna x odpowiada formom równowagi...

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• Size-dependent effects of ZnO nanoparticles on the photocatalytic degradation of phenol in a water solution

  Publikacja

  • E. Kusiak-Nejman
  • J. Wojnarowicz
  • A. Morawski
  • U. Narkiewicz
  • K. Sobczak
  • S. Gierlotka
  • W. Lojkowski
  • J. Wojnarowicz

  - Applied Surface Science - Rok 2021

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• Solution conformations of bradykinin antagonists modified with CαCα cyclized nonaromatic residues

  Publikacja

  • E. Sikorska
  • S. Rodziewicz‐MotowidŁo

  - JOURNAL OF PEPTIDE SCIENCE - Rok 2008

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• Mechanism of Butanol Adsorption from Solution. 2. Further Evidence of Association Importance

  Publikacja

  • A. Dawidowicz
  • A. Patrykiejew
  • D. WIANOWSKA

  - LANGMUIR - Rok 2001

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• Effects of surface nonuniformity and molecular association on mechanism of butanol adsorption from solution

  Publikacja

  • A. Dawidowicz
  • D. WIANOWSKA
  • A. Patrykiejew

  - Journal of Colloid and Interface Science - Rok 2003

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• Removal of hydrophobic organic pollutants from soil by surfactants and biosurfactants solution flushing

  Publikacja

  • S. Pastewski
  • E. Hallmann
  • K. Mędrzycka

  - POLISH JOURNAL OF ENVIRONMENTAL STUDIES - Rok 2007

  Przedstawiono wyniki solubilizacji dwóch związków hydrofobowych - tetrachloroetylenu i dodekanu oraz dwóch bazowych olejów mineralnych - SAE 30/95 i PAO6 w wodnych roztworach syntetycznych związków powierzchniowo czynnych oraz biosurfaktantów. Zaobserwowano liniowy wzrost solubilizacji wraz ze wzrostem stężenia surfaktantu.Przedstawiono także wyniki wymywania oleju PAO6 ze sztucznie zaolejonego piasku (w kolumnie) z pomocą roztworów...

• The crystal and solution studies of glucosamine-6-phosphate synthase from Candida albicans

  Publikacja

  • J. Raczyńska
  • J. Olchowy
  • P. Konariev
  • D. Svergun
  • S. Milewski
  • W. Rypniewski

  - JOURNAL OF MOLECULAR BIOLOGY - Rok 2007

  Określono strukturę krystaliczną domeny izomerazowej syntazy glukozamino-6-fosforanu z Candida albicans w stanie natywnym, oraz w kompleksie z inhibitorem allosterycznym UDP-GlcNAc, fruktozo-6-P, glukozo-6-P oraz analogiem stanu przejściowego reakcji enzymatycznej - 2-amino-2-deoksy-D-mannitolo-6-P (ADMP). Na podstawie wyników badań metodą niskokątowego rozpraszania promieni X (SAXS) wydedukowano przypuszczalną strukturę kompletnej...

• medVC — A remote collaboration solution enhanced with cloud services and future internet capacities

  Publikacja

  • M. Blaszczynska
  • C. Mazurek
  • P. Pawalowski
  • P. Szymaniak
  • S. Zielinski

  - Rok 2015

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

  Publikacja

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

  - Rok 2020

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• Application of Pierson-Moskowitz wave spectrum to solution differential equations of multihull vessel

  Publikacja

  • A. Królicka-Gałązka
  • K. Trębacki

  - Logistyka - Rok 2011

  Motion of a dynamic system can be generated by different external or internal factors. At mathematical modelling external excitation factors of the most significant effect on the system, are selected. Such external factors are usually called excitations. Response of the system to given excitations is mathematically characterized by a definite transformation called operator of a system. For a broad class of dynamic systems the...

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• Numerical solution analysis of fractional point kinetics and heat exchange in nuclear reactor

  Publikacja

  • T. Nowak
  • K. Duzinkiewicz
  • R. Piotrowski

  - NUCLEAR ENGINEERING AND DESIGN - Rok 2015

  The paper presents the neutron point kinetics and heat exchange models for the nuclear reactor. The models consist of a nonlinear system of fractional ordinary differential and algebraic equations. Two numerical algorithms are used to solve them. The first algorithm is application of discrete Grünwald-Letnikov definition of the fractional derivative in the model. The second involves building an analog scheme in the FOMCON Toolbox...

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• Selected problems of determining the course of railway routes by use of GPS network solution

  Publikacja

  • W. Koc
  • C. Specht

  - Archives of Transport - Rok 2011

  W 2009 roku Politechnika Gdańska rozpoczęła prace nad wykorzystaniem ciągłych pomiarów pozycji systemów geodezji satelitarnej dla wyznaczania przebiegu trasy kolejowej z wykorzystaniem fazowych metod GPS opartych o serwis NAVGEO polskiej Aktywnej Sieci Geodezyjnej ASG-EUPOS. W celu eliminacji błędów przypadkowych wpływających na dokładność wyznaczenia trasy kolejowej w następnym roku zespół przeprowadził dwie kampanie pomiarowe...

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• Mobile Offloading Framework: Solution for Optimizing Mobile Applications Using Cloud Computing

  Publikacja

  • H. Krawczyk
  • M. Nykiel
  • J. Proficz

  - Rok 2015

  Number of mobile devices and applications is growing rapidly in recent years. Capabilities and performance of these devices can be tremendously extended with the integration of cloud computing. However, multiple challenges regarding implementation of these type of mobile applications are known, like differences in architecture, optimization and operating system support. This paper summarizes issues with mobile cloud computing and...

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• Open source solution LMS for supporting e-learning/blended learning engineers

  Publikacja

  • A. Grabowska

  - Rok 2005

  W artykule zaprezentowano darmowe systemy zarządzania kształceniem na odległość wspomagające e-learningowe/mieszane nauczanie inżynierów. Pierwszy system TeleCAD został opracowany w ramach projektu Leonardo da Vinci (1998-2001). System TeleCAD był propozycją w projekcie V Ramowy CURE (2003-2006). W roku 2003 dzięki projektowi Leonardo da Vinci EMDEL (2001-2005) Centrum Edukacji Niestacjonarnej Politechniki Gdańskiej wybrało system...

• Influence of diffusion on nonradiative energy transfer between FMN molecules in aqueous solution

  Publikacja

  • H. Grajek
  • G. Żurkowska
  • J. Kuśba

  - Rok 2005

  Zmierzono zależności wydajności kwantowej roztworów wodnych FMN w zakresie koncentracji od 6,31x10^-5 do 1,8x10^-2 M w temperaturach 298,2 i 323,9 K. Otrzymane wyniki porównano z analogicznymi, uzyskanymi teoretycznie na podstawie modelu nie biorącego i biorącego pod uwagę dyfuzję molekuł fluoroforu. Porównanie wykazuje, że dla badanych roztworów dyfuzja nie może być pominięta, oraz, że dla uzyskania zgodności otrzymanych wyników...

• The mixed EIS-EQCM method for investigation of electrodeposition and electrodissolution of copper in acidic solution

  Publikacja

  • K. Darowicki
  • J. Kawula

  - Rok 2003

  Celem pracy jest połączenie chronowoltimpedancjometrii i mikrograwimetrii dobadania procesu elektroosadzania i elektroredukcji miedzi w środowisku kwaśnym. Proces elektroosadzania i elektroredukcji miedzi w środowisku kwaśnym został wybrany jako przykład prostej reakcji elektrochemicznej, by sprawdzić wiarygodność metody. Przedstawiono nową, obiecującą technikę - EIS-EQCM - jako metodę badania procesów niestacjonarnych, przebiegających...

• Enhanced hydrogen evolution reaction on highly stable titania-supported PdO and Eu2O3 nanocomposites in a strong alkaline solution

  Publikacja

  • M. Ibrahim
  • A. Mezni
  • M. Alsawat
  • T. Kumeriah
  • M. Das
  • S. Alzahly
  • A. Aldalbahi
  • K. Górnicka
  • J. Ryl
  • M. Amin
  • T. Altalhi

  - INTERNATIONAL JOURNAL OF ENERGY RESEARCH - Rok 2019

  In this work, PdO/TiO2 and Eu2O3/TiO2 nanocomposites (NCs), were synthesized using a new facile, template-free and one-step solvothermal approach, and characterized by several instrumentation techniques. X-ray photoelectron spectroscopy (XPS) studies revealed the presence of oxidised form of the Pd and Eu nanoparticles within the nanocomposite materials (PdO and Eu2O3). The two catalysts exhibited remarkable activity for the HER...

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• TiN coating in ring-on-ring sliding with saline solution (0.9%) lubrication 5MPa, 0.1m/s specimn. #B48/#A45

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. saline solution (0.9%) lubrication

  Wear tests in sliding friction of TiN coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, TiN over TiN . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9%). Tribometer: PT-3. Overall test time till coating penetration 12 min....

• TiC coating in ring-on-ring sliding with saline solution (0.9%) lubrication 5MPa, 0.1m/s specimn. #B41/#A39

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. saline solution (0.9%) lubrication

  Wear tests in sliding friction of TiC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, TiC over TiC . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9%). Tribometer: PT-3. Overall test time till coating penetration 9 min....

• TiN coating in ring-on-ring sliding with saline solution (0.9%) lubrication 5MPa, 0.1m/s specimn. #A45/#B48

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. saline solution (0.9%) lubrication

  Wear tests in sliding friction of TiN coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, TiN over TiN . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9%). Tribometer: PT-3. Overall test time till coating penetration 12 min....

• CrN coating in ring-on-ring sliding with saline solution (0.9%) lubrication 5MPa, 0.1m/s specimn. #A25/#B21

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. saline solution (0.9%) lubrication

  Wear tests in sliding friction of CrN coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, CrN  over CrN . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9%). Tribometer: PT-3. Overall test time till coating penetration 9 min....

• Coordination complexes of Mn(II), Co(II), Ni(II), Zn(II) and Cd(II) with histaminol – Crystal structures and formation constants in aqueous solution

  Publikacja

  • P. Maślewski
  • D. Wyrzykowski
  • W. Kentner
  • A. Ciborska
  • A. Dołęga

  - POLYHEDRON - Rok 2020

  Stability constants were determined for a series of coordination complexes of Mn(II), Co(II), Ni(II), Zn(II) and Cd(II) with histaminol in aqueous solution. The tendency of histaminol to form chelate complexes has been confirmed by the isolation of several complex species in the monocrystalline form and determination of their molecular structures.

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• Cathodic Activation of Titania-Fly Ash Cenospheres for Efficient Electrochemical Hydrogen Production: A Proposed Solution to Treat Fly Ash Waste

  Publikacja

  • T. Altalhi
  • A. Mezni
  • M. Ibrahim
  • M. Refet
  • A. Gobouri
  • A. Safklou
  • A. Mousli
  • M. Attia
  • P. Boruah
  • M. Das... i 3 innych

  - Catalysts - Rok 2022

  Fly ash (FA) is a waste product generated in huge amounts by coal-fired electric and steam-generating plants. As a result, the use of FA alone or in conjunction with other materials is an intriguing study topic worth exploring. Herein, we used FA waste in conjunction with titanium oxide (TiO2) to create (FA-TiO2) nanocomposites. For the first time, a cathodic polarization pre-treatment regime was applied to such nanocomposites...

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• CrN coating in ring-on-ring sliding with saline solution (0.9%) lubrication 5MPa, 0.1m/s specimn. #B21/#A21

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  - seria: Wear of ultra thin PVD ceramic coatings on stainless steel in ring-on-ring sliding w. saline solution (0.9%) lubrication

  Wear tests in sliding friction of CrN coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, CrN  over CrN . Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9%). Tribometer: PT-3. Overall test time till coating penetration 25 min....

• A novel version of simulated annealing based on linguistic patterns for solving facility layout problems

  Publikacja

  • J. Grobelny
  • R. Michalski

  - Knowledge-Based Systems - Rok 2017

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• Sludge Treatment Reed Beds (STRBs) as a Eco-solution of Sludge Utilization for Local Wastewater Treatment Plants

  Publikacja

  • K. Kołecka
  • H. Obarska-Pempkowiak
  • M. Gajewska

  - Rok 2016

  Sewage sludge is a by-product of wastewater treatment processes. In Poland, the amout of sewage sludge has been still growing in recent years, due to inhencement of pollutants removal in wastewater treatment plants (WWTPs). One of the systems used to transform sewage sludge into fertilizer is a technology called Sludge Treatment Reed Beds (STRBs). Reed systems are periodically irrigated with sewage sludge with a low dry matter...

• Nanoparticles preparation using microemulsion systems

  Publikacja

  • A. Zielińska-Jurek
  • J. Reszczyńska
  • E. Grabowska
  • A. Zaleska-Medynska

  - Rok 2011

  Metallic nanoparticles become of current interests because they exhibit unique properties compared with those of metal atoms or bulk metal due to the quantum size effect and their large surface area, which make them attractive for applications in optics, electronics, catalysis biology and medicine. TiO2 has been used for environmental remediation purposes such as in the purification of water and air and also solar-to chemical energy...

• DLC coating in ring-on-ring sliding with saline solution (0.9% wt.) lubrication 20MPa/0.1m/s

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  Wear tests in sliding friction of DLC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, DLC-W over DLC-W. Mean contact stress: 20MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9% wt.). Tribometer: PT-3. Overall test time >15h. The test was augmented...

• DLC coating in ring-on-ring sliding with saline solution (0.9% wt.) lubrication 10MPa/0.1m/s

  Dane Badawcze

  open access

  • A. Neyman
  • J. Łubiński
  • A. Olszewski
  • K. Druet

  Wear tests in sliding friction of DLC coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, DLC-W over DLC-W. Mean contact stress: 10MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: SALINE SOLUTION (0.9% wt.). Tribometer: PT-3. Overall test time >15h. The test was augmented...

• A compact smart sensor based on a neural classifier for objects modeled by Beaunier's model

  Publikacja

  • Z. Czaja
  • M. Kowalewski

  - Przegląd Elektrotechniczny - Rok 2017

  A new solution of a smart microcontroller sensor based on a simple direct sensor-microcontroller interface for technical objects modeled by two-terminal networks and by the Beaunier’s model of anticorrosion coating is proposed. The tested object is stimulated by a square pulse and its time voltage response is sampled four times by the internal ADC of microcontroller. A neural classifier based on measurement data classifies the...

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• Synthesis, characteristics, and photocatalytic activity of zinc oxide nanoparticles stabilized on the stone surface for degradation of metronidazole from aqueous solution

  Publikacja

  • A. N. Alibeigi
  • N. Javid
  • M. Amiri Gharaghani
  • Z. Honarmandrad
  • F. Parsaie

  - Environmental Health Engineering and Management Journal - Rok 2021

  Abstract Background: The presence of antibiotics such as metronidazole in wastewater even at low concentrations requires searching for a suitable process such as advanced oxidation process (AOP) to reduce the level of pollutants to a standard level in water. Methods: In this study, zinc oxide (ZnO) nanoparticles were synthesized by thermal method using zinc sulfate (ZnSO4) as a precursor, then, stabilized on stone and was used...

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• The effect of cobalt addition on the corrosion behavior of near equiatomic NiTi shape memory alloy in normal saline solution, impedance and microscopic studies

  Dane Badawcze

  open access

  • J. Ryl
  • J. Wysocka

  The electrochemical and corrosion (uniform and localized) behavior of a binary Ni52Ti48 shape memory alloy (SMA) and two ternary Ni52Ti48-xCox (x = 1.5 and 4.0 wt.%) SMAs were studied. Measurements were conducted in 0.9% NaCl solution at 37 oC. This dataset contains the results of electrochemical impedance spectroscopy (EIS) studies done on daily basis...

• Dead-Time Effect Compensation Based on Additional Phase Current Measurements

  Publikacja

  • A. Lewicki

  - IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS - Rok 2015

  This paper proposes a new method of dead-time effect compensation. The proposed solution is based on additional phase current measurements realized by analog-to-digital converters. These measurements are carried out at the time instants specified by a pulsewidth-modulation (PWM) strategy. This makes it possible to estimate inverter currents at the commutation instants and, finally, to estimate the voltage error caused by dead time. This...

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• HCI-Based Wireless System for Measuring the Concentration of Mining Machinery and Equipment Operators

  Publikacja

  • J. Jagoda
  • M. Woszczyński
  • B. Polnik
  • P. Falkowski-Gilski

  - Applied Sciences-Basel - Rok 2023

  Maintaining stable and reliable working conditions is a matter of vital importance for various companies, especially those involving heavy machinery. Due to human exhaustion, as well as unpredicted hazards and dangerous situations, the personnel has to take actions and wisely plan each move. This paper presents a human–computer interaction (HCI)-based system that uses a concentration level measurement function to increase the safety...

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• Predicting bankruptcy with the use of macroeconomic variables

  Publikacja

  • T. Korol

  - Economic Computation and Economic Cybernetics Studies and Research - Rok 2010

  Regarding the current global financial crisis, the firms can expect the increased uncertainty of their existence. The relevant literature includes extensive studies on bankruptcy prediction. Studies show that the most popular method used for prediction of firms' failures are discriminant analyses (30,3% of all models), then logit and probit models (21,3%), which all three are parametric models. The nature, the structure of the...

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