Search results for: Chemical vapor deposition

• Chemical reactivity and antimicrobial activity of N-substituted maleimides

  Publication

  • N. Salewska
  • J. Boros-Majewska
  • I. Chabowska
  • K. Chylińska
  • M. Sabisz
  • S. Milewski
  • M. J. Milewska

  - JOURNAL OF ENZYME INHIBITION AND MEDICINAL CHEMISTRY - Year 2012

  Zsyntezowano kilkanaście N-podstawionych maleimidów, zawierających w swojej strukturze podstawniki o różnej wielkości i polarności.Maleimidy o charakterze obojętnym wykazywały silny efekt przeciwgrzybowy; ich aktywność przeciwbakteryjna była zróżnicowana. Niską aktywność przeciwbakteryjną, ale wysoką aktywność cytostatyczną stwierdzono dla maleimidów o charakterze zasadowym. Reaktywność chemiczna i lipofilowość miały wpływ na aktywność...

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• Ionization of tocopherols and tocotrienols in atmospheric pressure chemical ionization

  Publication

  • E. Bartosińska
  • A. Borsuk-De
  • D. Siluk
  • M. Markuszewski
  • P. Wiczling

  - RAPID COMMUNICATIONS IN MASS SPECTROMETRY - Year 2018

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• New materials and technologies used in chemical equipment design

  Publication

  • A. Olszak
  • M. Migus
  • Z. Kęsy
  • A. Kęsy

  - Mechanik - Year 2015

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• Chemical Composition and Antimicrobial Activity of New Honey Varietals

  Publication

  • M. Kunat-Budzyńska
  • A. Rysiak
  • A. Wiater
  • M. Grąz
  • M. Andrejko
  • M. Budzyński
  • M. Bryś
  • M. Sudziński
  • M. Tomczyk
  • M. Gancarz... and 2 others

  - International Journal of Environmental Research and Public Health - Year 2023

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• Chemical instability of the cobalt oxyhydrate superconductor under ambientconditions.

  Publication

  • M. L. Foo
  • R. Schaak
  • V. L. Miller
  • T. Klimczuk
  • N. Rogado
  • Y. Wang
  • G. Lau
  • C. Craley
  • H. Zandbergen
  • N. Ong

  - SOLID STATE COMMUNICATIONS - Year 2003

  Przedstawiono badania dyfrakcyjne i termograwimetryczne uwodnionego, sodowo-kobaltowego tlenku nadprzewodzącego: NaxCoO2 yH2O (y=1.4). Materiał ten jest niestabilny już w temperaturze pokojowej i przechodzi w nowo odkrytą fazę = 0.6.

• Mechanical properties of dissimilar welded joints for chemical tankers

  Publication

  • J. Łabanowski

  - Year 2005

  Artykuł przedstawia właściwości mechaniczne złączy różnoimiennych stali typu duplex oraz austenitycznej typu 316L otrzymanych za pomocą spawania automatycznego łukiem krytym. Wykazano możliwość wykorzystania wysokowydajnej metody SAW w miejsce dotychczas stosowanych metod GTAW i GMAW do spawania blach zbiorników statków do przewozu chemikaliów. Pomimo obawy uzyskania nieodpowiednich struktur złączy okazało się, że spawanie stali...

• Chemical structures and physical properties of cured segmental polyurethanes

  Publication

  • H. Janik
  • A. Balas

  - Polimery - Year 2009

  Przedmiotem badań były poliuretany (PUR) segmentowe otrzymywane w dwuetapowej syntezie oligomerycznego α,ω-dihydroksy(adypinianu etylenowo-butylenowego) oraz dwóch różnych aromatycznych diizocyjanianów: 4,4'-diizocyjanianu difenylenometanu (MDI) albo MDI modyfikowanego diizocyjanianem karbodiimidu. Na etapie przedłużania łańcucha, oprócz typowo używanego do tego celu 1,4-butanodiolu, stosowano triol - 1,3-dihydroksy-2-(hydroksymetyleno)propan...

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• The influence of glycols on thermal stability and chemical structure of glycolysates

  Publication

  • J. Datta

  - Year 2011

  W pracy omówiono wpływ glikoli (etano-1,2-diolu - heksano-1,6-diolu) na właściwości termiczne oraz budowę chemiczną glikolizatów. Analizy przeprowadzono dla półproduktów wytworzonych w jednym stosunku masowym odpadowego poliuretanu do glikolu wynoszącego 10:1.

• The Influence of Waste Expanded Perlite on Chemical Durability of Mortars

  Publication

  • W. Pichór
  • M. Barna
  • E. Kapeluszna
  • A. Łagosz
  • Ł. Kotwica

  - Solid State Phenomena - Year 2015

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• Polymerization of chloro-p-xylylenes, quantum-chemical study

  Publication

  • C. Czaplewski
  • K. Smalara
  • A. Giełdoń
  • M. Bobrowski

  - JOURNAL OF MOLECULAR MODELING - Year 2017

  The p-xylylene monomers of parylene N, C and D have similar high polymerization reactivity. For effective copolymerization processes this fact is basically a draw- back and for instance the copolymerization with styrene doesn't go at all (Corley et al. J Pol Sc 13(68):137­156, 1954). Substitution of terminal hydrogen atoms by chlorine atoms reduces reactivity dramatically. 7,7,8,8-tetrachloro-p- xylylene and 2,5,7,7,8,8-hexachloro-p-xylylene...

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• Screening stability, thermochemistry, and chemical kinetics of 3-hydroxybutanoic acid as a bifunctional biodiesel additive

  Publication

  • M. A. Abdel-Rahman
  • A. Shiroudi
  • J. Czub
  • H. Zhao

  - JOURNAL OF PHYSICAL CHEMISTRY A - Year 2024

  The thermo-kinetic aspects of 3-hydroxybutyric acid (3-HBA) pyrolysis in the gas phase were investigated using density functional theory (DFT), specifically the M06-2X theoretical level in conjunction with the cc-pVTZ basis set. The obtained data were compared with benchmark CBS-QB3 results. The degradation mechanism was divided into 16 pathways, comprising 6 complex fissions and 10 barrierless reactions. Energy profiles were calculated...

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• Chemical structures, rheological and physical properties of biopolyols prepared via solvothermal liquefaction of Enteromorpha and Zostera marina biomass

  Publication

  • P. Kosmela
  • K. Gosz
  • P. Kazimierski
  • A. Hejna
  • J. T. Haponiuk
  • Ł. Piszczyk

  - CELLULOSE - Year 2019

  In this work, liquefied biomass from the Baltic Sea was used for the preparation of rigid polyurethane (PUR) foams. The biomass contained 10 wt% of Enteromorpha macroalgae and 90 wt% of Zostera marina seagrass characterized by a high content of cellulose. The influence of time, temperature and the type of solvent on the efficiency of the liquefaction process and properties of biopolyols was determined. Obtained materials were analyzed...

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• Chemical composition of La-Sr-Ce-Ni-Ti ceramics material measured by XPS method

  Open Research Data

  open access

  • M. Łapiński

  La-Sr-Ce-Ni-Ti (LSCNT) based ceramics sample was manufactured by standard solid state reaction.Prepared powder was pressed into pilled and sintered in a furnace in air atmosphere for 10h. Annealing temperature was 1200 Celsius degree. To calculate chemical composition and determine valence states of the elements, X-Ray photoemission spectroscopy (XPS)...

• Amperometric sensing of chemical oxygen demand at glassy carbon and silicon electrodes modified with boron-doped diamond

  Publication

  • R. Bogdanowicz
  • J. Czupryniak
  • M. Gnyba
  • J. Ryl
  • T. Ossowski
  • M. Sobaszek
  • E. Siedlecka
  • K. Darowicki
  • K. Darowicki

  - SENSORS AND ACTUATORS B-CHEMICAL - Year 2013

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• A small-signal sound speed and parameter of non-linearity B/Ain a ternary mixture. Examples of calculations of mixture consisting of air, water and water vapor

  Publication

  • A. Perelomova

  - Year 2005

  Zostało wyliczone zaburzenie entropii z dokładnością do członów nieliniowych rzędu drugiego. Jedyne założenie ograniczające, toże para wodna i powietrze są gazami doskonałymi. Ostatecznie,parametr nieliniowości i prędkość fali akustycznej przedstawione jako rodzinę krzywych, zależnych od trzech parametrów. Przedstawiono ilustrację tych zależności.

• Elemental composition, environment of deposition of the Lower Carboniferous Emma Fiord Formation oil shale in Arctic Canada

  Publication

  • F. Goodarzi
  • N. Goodarzi
  • A. Małachowska

  - INTERNATIONAL JOURNAL OF COAL GEOLOGY - Year 2021

  The sedimentary succession of 51-m consisting of a thin coal seam (1 m) and oil shale with a marlstone and carbonate-mudstone matrix of the Lower Carboniferous (Viséan) Emma Fiord Formation located on the Grinnell Peninsula, Devon Island, Arctic Canada was examined. The techniques used include reflected light microscopy, and instrumental neutron activation analysis (INAA) for elemental concentration, and inductively coupled plasma...

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• The Influence of the Parameters of a Gold Nanoparticle Deposition Method on Titanium Dioxide Nanotubes, Their Electrochemical Response, and Protein Adsorption

  Publication

  • E. Paradowska
  • K. Arkusz
  • D. Pijanowska

  - Biosensors-Basel - Year 2019

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• Tribo-Environment Dependent Chemical Modification of Sliding Interfaces in Ultrananocrystalline Diamond Nanowall Film: A Correlation with Friction and Wear

  Publication

  • R. Rani
  • K. Panda
  • N. Kumar
  • S. Kamatchi
  • R. Pandian
  • M. Ficek
  • R. Bogdanowicz
  • K. Haenen
  • I. Lin

  - Journal of Physical Chemistry C - Year 2018

  Tribological properties of ultrananocrystalline diamond nanowall (UNCD NW) films were investigated quantitatively in three different and controlled tribo-environmental conditions, proposing the passivation and graphitization mechanisms. However, these mechanisms are rather complicated and possibly can be understood in well-controlled tribological conditions. It was shown that the friction and wear of these films were high in highPage 1...

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• Local structural and chemical ordering of nanosized Pt(3±δ)Co probed by multiple-scattering x-ray absorption spectroscopy

  Publication

  • G. Greco
  • A. Witkowska
  • E. Principi
  • M. Minicucci
  • A. Di Cicco

  - PHYSICAL REVIEW B - Year 2011

  This work reports a detailed investigation of the local structure and chemical disorder of a Pt(3±δ)Co thin film and Pt(3±δ)Co nanoparticles. We have used a combination of techniques including x-ray absorption spectroscopy (XAS), x-ray diffraction (XRD), and high-resolution transmission electron microscopy (TEM). The important effect of chemical ordering on pair and three-atom configurations has been studied using computer simulations...

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