Search results for: POLYANILINE STABILITY

• Hybrid TiO2–Polyaniline Photocatalysts and their Application in Building Gypsum Plasters

  Publication

  • A. Sulowska
  • I. Wysocka
  • D. K. Pelczarski
  • J. Karczewski
  • A. Zielińska-Jurek

  - Materials - Year 2020

  Hybrid materials of conjugated polymer and titanium(IV) oxide have attracted considerable attention concerning their potential benefits, including (i) ecient exploitation of visible light, (ii) a high adsorption capacity for organic contaminants, (iii) and eective charge carriers separation. The new class of the photocatalysts is promising for the removal of environmental pollutants in both aqueous and gaseous phases. For the first...

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• Influence of polyaniline primer on the corrosion properties of St3S steel - coating system

  Publication

  • K. Darowicki
  • J. Kawula

  - Year 2005

  Praca przedstawia wyniki badań wpływu podkładu z polianiliny osadzonej elektrochemicznie na właściwości antykorozyjne powłoki epoksydowej na stali niskowęglowej St3S. Wykonano badania próbek nieuszkodzonych, a także próbek ze sztucznym defektem powłoki. Próbki były eksponowane na środowisko korozyjne przez 63 dni i były sukcesywnie badane za pomocą elektrochemicznej spektroskopii impedancyjnej. Postępy korozji były również oceniane...

• Stability and instability processes in the calli of Fagopyrum tataricum that have different morphogenic potentials

  Publication

  • A. Betekhtin
  • A. Pinski
  • A. Milewska-Hendel
  • E. Kurczynska
  • R. Hasterok

  - PLANT CELL TISSUE AND ORGAN CULTURE - Year 2019

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• Impedance characterization of the process of polyaniline first redox transformation after aniline electropolymerization

  Publication

  • K. Darowicki
  • J. Kawula
  • K. Darowicki

  - ELECTROCHIMICA ACTA - Year 2004

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• Physicochemical and catalytic properties of ployaniline protonated with 12-molybdophosphoric acid

  Publication

  • M. Hasik
  • A. Pron
  • J. Poźniczek
  • A. Bielański
  • Z. Piwowarska
  • K. Kruczala
  • R. Dziembaj

  - J. Chem. Soc., Faraday Trans. - Year 1994

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• Dynamic electrochemical impedance spectroscopy of the adsorption and relaxation of polyaniline chains during potentiodynamic redox transformations

  Publication

  • K. Darowicki
  • J. Kawula
  • K. Darowicki

  - RUSSIAN JOURNAL OF ELECTROCHEMISTRY - Year 2007

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• An Aqueous Exfoliation of WO3 as a Route for Counterions Fabrication—Improved Photocatalytic and Capacitive Properties of Polyaniline/WO3Composite

  Publication

  • M. Szkoda
  • Z. Zarach
  • K. Trzciński
  • A. Nowak

  - Materials - Year 2020

  In this paper, we demonstrate a novel, electrochemical route of polyaniline/tungsten oxide (PANI)/WO3) film preparation. Polyaniline composite film was electrodeposited on the FTO (fluorine-doped tin oxide) substrate from the aqueous electrolyte that contained aniline (monomer) and exfoliated WO3 as a source of counter ions. The chemical nature of WO3 incorporated in the polyaniline matrix was investigated using X-ray photoelectron...

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• Theoretical Studies on the Structure, Stability, Ability To Undergo Internal Transformations, and Tautomerization, as Well as Reactivity, of H2PPH2 and HPPH3 Molecules

  Publication

  • J. Rak
  • P. Skurski
  • A. Liwo
  • J. B-lazejowski

  - JOURNAL OF THE AMERICAN CHEMICAL SOCIETY - Year 1995

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• Dynamic electrochemical impedance spectroscopy of the adsorption and relaxation of polianiline chains during potentiodynamic redox transformations

  Publication

  • K. Darowicki
  • J. Kawula

  - RUSSIAN JOURNAL OF ELECTROCHEMISTRY - Year 2007

  Zaprezentowano nowe podejście do analizy widm impedancyjnych uzyskanych dla warstwy przewodzącej polianiliny (PAni). Właściwości powyższej warstwy są często modelowane przy użyciu elementu stałofazowego (CPE), który w sposób dokładniejszy odzwierciedla wyniki eksperymentalne niż klasyczny element pojemnościowy (kondensator). W pracy zaproponowano nowy elektryczny obwód zastępczy oparty na modelu adsorpcyjnym Frumkin-Melik-Gaikazyan,...

• Eco-Friendly Electromagnetic Interference Shielding Materials from Flexible Reduced Graphene Oxide Filled Polycaprolactone/Polyaniline Nanocomposites

  Publication

  • D. P. Deepalekshmi Ponnamma
  • S. Kisho
  • M. Strankowski
  • P. Kasak
  • I. Krupa
  • M. Al-Ali AlMaadeed

  - POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING - Year 2016

  Hybrid nanocomposites have the unique ability of enhancing material properties due to the existing synergistic effect of the fillers. In this study, the authors report such an eco-friendly hybrid nanocomposite comprising of polyaniline and reduced graphene oxide in polycaprolactone. The conducting polyaniline improved the processability of polycaprolactone, and the final composites were prepared by incorporating graphene oxide...

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• Improving the Performance of a Graphite Foil/Polyaniline Electrode Material by a Thin PEDOT:PSS Layer for Application in Flexible, High Power Supercapacitors

  Publication

  • Z. Zarach
  • K. Trzciński
  • M. S. Łapiński
  • A. Lisowska-Oleksiak
  • M. Szkoda

  - Materials - Year 2020

  In this study, we present a novel strategy for enhancing polyaniline stability and thus obtaining an electrode material with practical application in supercapacitors. A promising (graphite foil/polyaniline/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) GF/PANI/PEDOT:PSS) electrode material was characterized and used in the construction of a symmetric supercapacitor that provides an outstanding high power density. For this...

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• Ability of Yeast Metabolic Activity to Reduce Sugars and Stabilize Betalains in Red Beet Juice

  Publication

  • D. Dygas
  • S. Nowak
  • J. Olszewska
  • M. Szymańska
  • M. Mroczyńska-Florczak
  • J. Berłowska
  • P. Dziugan
  • D. Kręgiel

  - Fermentation - Year 2021

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• Structural Stability of Nonautonomous Systems

  Publication

  • S. Kryzhevich
  • V. Pliss

  - DIFFERENTIAL EQUATIONS - Year 2003

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• Stability of selenium diet supplement

  Publication

  • J. Grzechulska-Damszel
  • A. B. Markowska-Szczupak
  • A. Morawski

  - Polish Journal of Chemical Technology - Year 2018

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• Stabilizing agents and protein stability

  Publication

  • P. Bruździak
  • A. Panuszko
  • J. Stangret

  - Acta Biochimica Polonica - Year 2011

  Białka są kluczowymi elementami żywych organizmów, jak również efektywnymi katalizatorami w biotechnologii i medycynie. Szybki rozwój wielu gałęzi biotechnologii wiąże się z coraz większym zapotrzebowaniem na produkty białkowe charakteryzujące się wysoką stabilnością. Jednym ze sposobów osiągnięcia większej stabilności białek jest wykorzystanie małych związków organicznych, tzw. osmolitów. Do tej grupy związków należą aminokwasy,...

• Subdivision and damage stability of ships.

  Publication

  • M. Pawłowski

  - Year 2004

  Pierwszy kompleksowy podręcznik na świecie na poziomie akademickim dotyczący niezatapialności statku w ujęciu probabilistycznym, w którym za miarę bezpieczeństwa statku przyjmuje się prawdopodobieństwo przetrwania kolizji przez statek, zwane wskaźnikiem niezatapialności, względnie wskaźnikiem podziału grodziowego statku. Obejmuje zarówno zagadnienia teoretyczne jak i praktyczne, dając projektantom wykładnię stosowania obowiązujących...

• Stability investigation of the PCM nanocomposites

  Publication

  • P. Boroń
  • M. Fabrykiewicz
  • J. Cieśliński

  - Year 2022

  In present study was showed the results of research the stability of nanoPCMs in terms of types and concentrations of surfactant used. For stearic acid has been added PVP or oleic acid in concentrations of 0%, 5% and 10%. Nanoparticles TiO2 and Al-2O3 in concentration of 1% were chosen to be researched in this test. The mixing of nanocomposites has been done in an ultrasonic scrubber in which the samples were placed for 45 mins....

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• Stability Investigation of the PCM Nanocomposites

  Publication

  • J. Cieśliński
  • P. Boroń
  • M. Fabrykiewicz

  - Acta Mechanica et Automatica - Year 2023

  Ensuring the stability is a key issue to be solved for the technical application of nanocomposites. In this work, fatty acid P1801 served as base phase change material (PCM)P1801, and its main ingredients are palmitic acid (58%) and stearic acid (38%). Titania (TiO2) and alumina (Al2O3) with mass concentrations of 1% and 5% were selected as nanoparticles, while polyvinylpyrrolidone (PVP) or oleic acid (OA) with mass concentrations...

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• Effect of Silicone on the Collagen Fibrillogenesis and Stability

  Publication

  • L. Kadziński
  • M. Prokopowicz
  • J. Jakóbkiewicz-Banecka
  • M. Gabig-Cimińska
  • J. Łukasiak
  • B. Banecki

  - JOURNAL OF PHARMACEUTICAL SCIENCES - Year 2015

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• Investigation of stability of ester-urethane prepolymers

  Publication

  • J. DATTA
  • J. HAPONIUK
  • J. Haponiuk

  - Polimery - Year 2010

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• Vibrational properties and stability of FePt nanoalloys

  Publication

  • P. Piekarz
  • J. Łażewski
  • P. Jochym
  • M. Sternik
  • K. Parlinski

  - PHYSICAL REVIEW B - Year 2017

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• Stability of Superhalogen Anions in the Aqueous Phase

  Publication

  • I. Anusiewicz
  • S. Freza
  • P. Skurski

  - INORGANIC CHEMISTRY - Year 2016

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• Structural Dynamics and Stability of Composite Structures

  Publication

  • S. Han
  • I. Kreja
  • G. Rus
  • G. Lomboy

  - Advances in Materials Science and Engineering - Year 2016

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• Model studies on then-alkane emulsions stability

  Publication

  • E. Chibowski
  • A. So?tys
  • M. ?azarz

  - Progress in Colloid & Polymer Science - Year 1997

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• On the characteristic and stability of iron diet supplements

  Publication

  • J. Grzechulska-Damszel
  • A. B. Markowska-Szczupak
  • G. Zolnierkiewicz
  • J. Typek
  • N. Guskos
  • A. Morawski

  - Polish Journal of Chemical Technology - Year 2019

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• Chemical and biological stability of polyene macrolides

  Publication

  • N. Salewska
  • J. Boros-Majewska
  • M. J. Milewska
  • S. Milewski

  - Acta Biochimica Polonica - Year 2011

  The polyene macrolide antibiotics have been used in an-tifungal therapy since first o f them were discovered in 1950's. Up to now, four polyene macrolides are being used in medical practice, namely amphotericin B, nystatin, candi-cidin and pimaricin.The antifungal activity and mode of ac-tion of polyene macrolides is determined by their structure, chemical and physical properties.The main fragment of polyene...

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• THE PROBLEM OF THE BANKING SYSTEM STABILITY IN THE LITERATURE

  Publication

  • K. Kubiszewska

  - INTERCATHEDRA - Year 2015

  The article is an overview of the literature output in the field of banking sector stability. In the literature a plethora of definitions of the term may be encountered. There is no universal definition of the term. Therefore, the article proposes a unique division of the existing explanations into the following groups: stability determined by the quality of the banking sector, stability in terms of its influence on the macroeconomic...

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• Structural Dynamics and Stability of Composite Structures

  Publication

  • S. Han
  • I. Kreja
  • G. Rus
  • G. Lomboy

  - Advances in Materials Science and Engineering - Year 2016

  This an editorial for a special Issue devoted to the application of dynamic and stability analysis of composite structures. In structural applications, past few decades have seen outstanding advances in the use of composite materials including Functionally Graded Materials (FGM). Most structures, whether they are used in civil, marine, or aerospace engineering, are subjected to dynamic loads during their operation.Therefore, dynamic...

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• Stability of an imperfect truss loaded by wind

  Publication

  • M. Krajewski
  • P. Iwicki

  - Engineering Transactions - Year 2016

  The present paper is devoted to the numerical research of stability of a truss loaded by wind and stiffened by elastic supports located at the top chord. The lateral braces or lateral and torsional braces were taken into account. In this paper, the linear buckling analysis re- sults for the beam and shell model were presented. Two different shapes of initial geometric imperfections were considered in the non-linear static analysis...

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• Selected problems of stability of steel structures.

  Publication

  • P. Iwicki

  - Przegląd Elektrotechniczny - Year 2010

  W pracy przedstawiono wyniki badań dotyczących stateczności wybranych konstrukcji stalowych. Prezentowane rozważania są oparte na klasycznych założeniach teorii prętów cienkościennych o nieodkształcalnym przekroju poprzecznym. Wyznaczono pierwszą wariację sił krytycznych pręta cienkościennego o bisymetrycznym otwartym przekroju poprzecznym uwzględniając następujące zmienne projektowe: ⎯wymiary przekroju poprzecznego, ⎯ charakterystyki...

• Stability of the FDTD scheme containing macromodels.

  Publication

  • Ł. Kulas
  • M. Mrozowski

  - Year 2004

  Zaprezentowano analizę stabilnościową algorytmu różnic skończonych w dziedzinie czasu zawierającego makromodele. Pokazano, że dla uzyskania stabilnych makromodeli stabilność schematu FDTD połączonego z makromodelami zależy od sposobu przeprowadzenia interpolacji pól granicznych. Maksymalny dozwolony krok czasowy jest dużo większy niż dla subgriddingu.

• Interdependence of Ratios in Banking Stability Pentagon

  Publication

  • K. Kubiszewska

  - Studia i Materiały Wydział Zarządzania Uniwersytet Warszawski - Year 2018

  The banking sector is one of the key sectors in every economy, therefore, the issue of stability is one of the main interests not only of researchers but also policy-makers. The stability of the banking sector is especially important during a process of transformation. The aim of this article is to present a new tool for estimating the stability of the banking sector as a whole. Although the tool can be used to estimate the level...

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• The measurement of conformational stability of proteins adsorbed on siloxanes

  Publication

  • M. Prokopowicz
  • B. Banecki
  • J. Łukasiak
  • A. Przyjazny

  - JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION - Year 2003

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• Recent breakthroughs in the stability testing of pharmaceutical compounds

  Publication

  • M. Jamrógiewicz
  • K. Pieńkowska

  - TRAC-TRENDS IN ANALYTICAL CHEMISTRY - Year 2019

  Pharmaceutical development is mostly focused on the research leading to approval of a new and viable active substance. However, there is a number of old generation compounds that are still being used in contemporary medicinal practice. So that new analytical developments should cover not only the safety of newly developed drug substances, which is obvious, but should also be directed into the search of individual stability issues...

• A history of the physical and chemical stability of pharmaceuticals : a review

  Publication

  • M. Jamrógiewicz
  • M. Merchel

  - Acta Poloniae Pharmaceutica - Drug Research - Year 2018

  : There is a great need for a broad range review of stability tests of active pharmaceutical ingredients (APIs) in comparison with current requirements contained in the pharmacopoeia. This review focuses on a pharmaceutical history of physical and chemical stability determination. Traditional knowledge must be considered in the context of physical stability, while new knowledge must be applied and acquired in terms of identification...

• Wind farms influence on power system stability

  Publication

  • Z. Lubośny

  - Przegląd Elektrotechniczny - Year 2010

  W artykule przedstawiono analizę wpływu elektrowni i farm wiatrowych na stabilność systemu elektroenergetycznego. Pokazano wyniki pomiarów modów kołysań elektromechanicznych wykonanych w rzeczywistym systemie elektroenergetycznym.

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• Stability of trusses with linear elastic side-supports

  Publication

  • P. Iwicki

  - THIN-WALLED STRUCTURES - Year 2007

  The present research is devoted to study of a lateral buckling of truss with linear elastic side supports. The elastic support reaction in relation to force in compressed chord and coefficient of buckling length related to side support distance are also calculated. The effect of slope of side support on limit force is also considered. The nonlinear analysis of two roof trusses are carried out. The results are compared to design...

• Dynamics and stability of icosahedral Fe–Pt nanoparticles

  Publication

  • P. Jochym
  • J. Łażewski
  • M. Sternik
  • P. Piekarz

  - PHYSICAL CHEMISTRY CHEMICAL PHYSICS - Year 2015

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• Thermodynamic properties and phase stability of wadsleyite II

  Publication

  • K. Tokár
  • P. Jochym
  • P. Piekarz
  • J. Łażewski
  • M. Sternik
  • K. Parlinski

  - PHYSICS AND CHEMISTRY OF MINERALS - Year 2013

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• The Stability of 4‐Chloromethcathinone in Blood and Vitreous Humor

  Publication

  • K. Nowak
  • P. Szpot
  • M. Zawadzki

  - JOURNAL OF FORENSIC SCIENCES - Year 2020

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• Thermal stability of expanded perlite modified by mullite

  Publication

  • W. Pichór
  • A. Janiec

  - CERAMICS INTERNATIONAL - Year 2009

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• Stability of roof trusses stiffened by corrugated sheets

  Publication

  • P. Iwicki

  - Year 2010

  The present parametric study is devoted to the stability analysis of a set of trusses stiffened by decking of corrugated steel sheets. For different parameters of corrugated sheets the critical loading of the roof is calculated. In the parametrical analysis the threshold bracing condition of the roof is obtained. Then the geometrically non-linear analysis of trusses braced by corrugated sheets was conducted. As a results of non-linear...

• Comparison of oxidative stability of different edible oils

  Publication

  • J. Gromadzka
  • W. Wardencki

  - Nauka Przyroda Technologie - Year 2009

  Celem prezentowanych badań było porównanie stabilności oksydacyjnej olejów roślinnych z Polski, Finlandii i Hiszpanii. Na etapie przyspieszania utleniania zastosowano promieniowanie ultrafioletowe (UV). Po naświetlaniu olejów powstałe związki lotne ekstrahowano z fazy nadpowierzchniowej za pomocą techniki mikroekstrakcji do fazy stacjonarnej (HS-SPME) i analizowano z zastosowaniem chromatografu gazowego z detektorem płomieniowo-jonizacyjnym...

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• Stability of an Innovative Cold-Formed GEB Section

  Publication

  • A. Łukowicz
  • M. Krajewski

  - Engineering Transactions - Year 2017

  This paper is focused on the numerical analysis and experimental test of stability of the cold-formed profile with an innovative GEB cross-section. For the shell model of the axially compressed member, the linear buckling analysis and the nonlinear static analysis were carried out. In the numerical research, the buckling load and the limit load for variable section heights were obtained. Some of the results were compared with the...

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• Stability analysis of a dike constructed of anthropogenic materials

  Publication

  • A. Danilewicz

  - Year 2017

  Numerical analyses of stability are presented for a hypothetical dikes constructed of dredged materials and bottom ash, in varying proportions. The paper is related to the international research project DredgDikes, which focused on the use of anthropogenic materials in dikes construction and flood protection. The aim of this project was to investigate the possibility of using anthropogenic materials from rivers and sea dredging...

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• Investigation on stability of mountainous EUPOS sites’ coordinates

  Publication

  • M. Figurski
  • K. Szafranek
  • J. Bogusz
  • P. Kamiński

  - Acta Geodynamica et Geomaterialia - Year 2010

  The paper concerns analysis of solutions obtained during common processing of data from GNSS permanent stations situated on mountainous terrain: the Western Carpathians, the Sudetes Mountains and adjacent areas. As the outcome daily and weekly solutions (ellipsoidal coordinates) of forty Polish, Czech, Slovak, Ukrainian and German sites were obtained. Weekly solutions were used to determine velocity field and vertical movements,...

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• Stability of a truss under upward wind loading

  Publication

  • M. Krajewski
  • P. Iwicki

  - Year 2016

  The present paper is devoted to the numerical investigations of stability of a truss under upward wind load. The truss is braced at its the upper cord. A structural variant including lateral braces, or lateral and torsional braces is considered. The research presents the problems of linear buckling and non-linear static analysis of the truss shell and beam model with geometric and material non-linearity are presented. The initial...

• THE PHASE SHIFTERS INFLUENCE ON THE POWER SYSTEM STABILITY

  Publication

  • M. Sarnicki
  • A. Szultka
  • B. Tarakan
  • K. Tarakan
  • R. Zajczyk

  - Year 2016

  The paper presents the effect of phase shifters as FACTS devices on the possibility of improving the angle stability. Presented results obtained by the dynamic simulation performed on the mathematical model of the three machine system cooperating with the 400 kV network. The generative blocks models include turbine models with their controllers and models of synchronous generators with their excitation systems and voltage regulation....

• Thermal stability of the cobalt base clad layers

  Publication

  • H. Smoleńska

  - Year 2005

  Badano wpływ długotrwałego oddziaływania temperatury na mikrostrukturę i własności mechaniczne warstw napawanych laserowo wykonanych ze stopów na bazie kobaltu zawierających chrom i wolfram. Stopy te są przewidywane do zastosoania na przylgnie zaworów wydechowych silników diesla.

• Stability of free floating ship. Part II

  Publication

  • M. Pawłowski

  - Year 2005

  Jest to część II artykułu, którego I część ukazała się w PMR 2/2005. Ramiona prostujące są niejednoznaczne dla statku swobodnego, bowiem zależą od sposobu działania momentu przechylającego. Omówiono dwa przypadki, gdy moment przechylający jest równoległy do płaszczyzny symetrii statku oraz gdy wykonuje najmniejszą pracę, czyli gdy jest równoległy do głównej osi bezwładności wodnicy pływania. Pokazano, że przemieszczenia kątowe...