Výsledky vyhledávání - "A. Ste¸pien"

Reduction of Pressure Forces in Turbine Labyrinth Seals

Autor: Krzysztof Kosowski, Robert Ste˛pien´

Publikováno v: Volume 7: Turbomachinery, Parts A, B, and C.

The paper describes a chamber seal reducing the aerodynamic forces created in shroud seals. This kind of turbine seal was patented and tested. The investigations into the pressure field in the shroud gap were performed by means of CFD Fluent Code and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ae7c5d4543b0a5bea14f054428428700
https://doi.org/10.1115/gt2010-22391

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2H-1-Benzopyrans. II. 4-Chloro-3-methoxycarbonyl-2-dimethoxyphosphoryl-2H-1-benzopyran, (I), and 4-Chloro-2-dimethoxyphosphoryl-2H-1-benzopyran, (II)

Autor: M. J. Grabowski, A. Ste¸pien, T. A. Olszak, R. Modranka, K. Kostka

Publikováno v: Acta Crystallographica Section C Crystal Structure Communications. 53:1514-1516

The pyranoid rings are in a half-boat conformation in compound (I), C 13 H 14 ClO 6 P, and in a deformed half-boat-towards-half-chair conformation in compound (II), C 11 H 12 ClO 4 P. Fusion with the pyranoid ring has no significant influence on the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ff2a67e822eb266e9760422dfcbf28b2
https://doi.org/10.1107/s010827019700735x

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(±)-N-[1,8(10)-Menthadien-3-yl]toluenesulfonamide

Autor: A. M. Osinska, A. Ste¸pien

Publikováno v: Acta Crystallographica Section C Crystal Structure Communications. 53:519-521

In the cyclohexene ring of the title compound, C17H23NO2S, four C atoms are planar and the other two atoms are on either side of the best plane. The toluenesulfonamide group is in an axial configuration. The molecules are linked in chains by N-H⋯O

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bde37a58f9ec5876bd5771ada519944e
https://doi.org/10.1107/s0108270196013777

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X-ray structure investigations of potential beta-blockers. II.6,7-Dimethoxy-1-phenyl-1,2,3,4-tetrahydroisoquinoline

Autor: E. Brzezińska, A. Ste¸pien, M. J. Grabowski, T. A. Olszak

Publikováno v: Acta crystallographica. Section C, Crystal structure communications. 52

The saturated part of the isoquinoline moiety in the title compound, C17H19NO2, has a twist conformation and the phenyl ring substituent is in an equatorial position. The absolute configuration of the molecule is R and molecules form infinite chains

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::58caddd63716a6413b7731874a5bd967
https://pubmed.ncbi.nlm.nih.gov/8624238

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