Search results for: ZIEGLER COLUMN

• Coluna/ Columna

  Journals

  ISSN: 1808-1851

• Aparatura, kolumna, sprawność rozdzielania, przepuszczalność kolumny.

  Publication

  • M. A. Kamiński

  - Year 2004

  Omówiona została aparatura chromatograficzna. Opisano budowę i zasady działania najważniejszych modułów składowych aparatu HPLC tj. pompy, zaworu dozującego lub automatycznego podajnika próbek, kolumny chromatograficznej, termostatu kolumn i zaworów proporcjonujących. Omówiono elucję gradientową, problemy z jej stosowaniem i zalecenia praktyczne. Szczegółowo omówiono detektory stosowane w chromatografii cieczowej. Przedstawiono...

• Buckling analysis of cold formed steel column

  Publication

  • P. Iwicki
  • M. Sondej

  - Year 2012

  W pracy przedstawiono analizę słupa zimnogiętego o przekroju otwartym. Przeprowadzono analizy statyczne liniowe i nieliniowe. Analizowano wpływ podłoża sprężystego oraz sztywność połączenia dwóch sąsiednich słupów.

• Buckling Analysis of Cold Formed Silo Column

  Publication

  • K. Rejowski
  • P. Iwicki

  - Mechanics and Mechanical Engineering - Year 2016

  The paper is devoted to stability analysis of different models of steel cold formed silo column. The steel cylindrical silos are often composed of corrugated walls and vertical open-sectional columns uniformly placed along the silo circumference. Both the whole 3D silo, a simplified model consisting of one column with a part of the silo walls, and a single column resting on elastic foundation provided by the silo walls were analyzed....

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• Retention modeling of some saccharides separated on an amino column.

  Publication

  • A. Kot-Wasik
  • A. Wasik
  • J. Namieśnik
  • C. Sarbu
  • R. D. Nascu-Birciu

  - JOURNAL OF LIQUID CHROMATOGRAPHY & RELATED TECHNOLOGIES - Year 2014

  Using an amino column (Supelcosil LC-NH2) and different mixtures of acetonitrile-water, quantitative structure-retention relationship models are discussed. These models are based on computed molecular descriptors representing numerically structured features of some saccharides. The obtained results are underlining the lipophilicity/hydrophilicity balance, and how this is controlling the separation of the saccharides. The resulting...

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• Oxygen accumulation rate with and without live bacteria in column bioreactors

  Publication

  • B. Kawalec-Pietrenko

  - Chemical and Process Engineering : New Frontiers - Year 2008

  Badano wnikanie i akumulację tlenu w reaktorach airlift z cyrkulacją zewnetrzną. Stosowano reaktory z odwrotną warstwą fluidalną w strefie opadania, warstwą fluidalną w strefie wznoszenia oraz reaktor z cyrkulującą zawiesiną. Badano wpływ prędkości przepływu powietrza oraz stężenia cząstek stałych na szybkośc akumulacji tlenu w cieczy w reaktorach nie zawierających bakterii oraz w obecności bakterii Acinetobacter calcoaceticus...

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• THE INTERACTION BETWEEN STEEL COLUMN CHORD AND CLOSELY SPACED REINFORCEMENT.

  Publication

  • P. Deniziak
  • E. Urbańska-Galewska
  • M. Gordziej-Zagórowska

  - Year 2017

  Nowadays, more often than before, civil engineering designers are willing to use steel build-up members composed of single or doubled cold-formed chords interconnected using different mechanical connectors. This paper subject is an analysis of cooperation of a closely spaced built-up cold-formed chord interconnected with series of bolts that are located along the length of the member in a specific spacing. This distance along the...

• Determination of the shape of the CFGFT cylindrical column based on laboratory tests

  Publication

  • E. Mieloszyk
  • M. Abramski
  • A. Milewska

  - MEASUREMENT - Year 2024

  Analyses were carried out on glass-fibre-reinforced polymer tube columns with reference to laboratory tests. The angles of the glass fibre beams were 20◦, 55◦ and 85◦. The study employed non-classical operational calculus. Various modulated harmonic signal shapes were considered for columns and tubes at buckling. The buckling loads were assessed and compared for different models.

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• Influence of stirrups in a concrete shell on strengthening reinforced concrete column

  Publication

  • M. Kin

  - Year 2014

  Twelve concrete columns, with a 150x150mm square section and three columns with a circular section (d=200mm), are tested to investigate the effect of strengthening by RC jacket. Based on a confined concrete model for axial static loading, an analytical methods, reported in the literature are proposed to predict the behavior of columns with RC jacket. The results support the conception that the effect of strengthening depends...

• Free vibration of truncated-cone columns

  Publication

  • J. Jaworski
  • O. Szlachetka

  - Czasopismo Inżynierii Lądowej, Środowiska i Architektury - Year 2014

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