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The necessity of bioanalytical tools for advancing water and sediment quality assessment
Kolodziej, Edward P.,Choi, Kyungho,Marfil-Vega, Ruth,Brooks, Bryan W. The Royal Society of Chemistry 2017 Environmental science Vol.19 No.9
<P>Guest editors Edward Kolodziej, Kyungho Choi, Ruth Marfil-Vega and Bryan Brooks introduce the “Bioanalytical tools for water and sediment quality assessment” themed issue of <I>Environmental Science: Processes & Impacts</I>.</P>
The torsional stiffness of bars with L, , , , and cross-section
Piotr Gorzela´nczyk,Henryk Tylicki,Jan A. Kolodziej 국제구조공학회 2007 Steel and Composite Structures, An International J Vol.7 No.6
In literature for thin-walled sections with L, , , , and - shapes the approximate torsion equations for stiffness are used which were proposed by Bach (Hsu 1984), p.30. New formulae for torsional stiffness of bars with L, , , , and cross section valid not only for thin-walled sections are presented in this paper. These formulae are obtained by appropriate polynomial approximation of stiffness results obtained by means of method of fundamental solutions. On the base of obtained results the validity of Bach’s formulae are verified when cross section is not thin-walled.