Bridge Piers Structure Performa Evaluation of Purus at The Time of Strong Earthquake with Finite Elements Method Non Linear Three Dimensional

2016 ◽  
Author(s):  
Hamdeni Medriosa ◽  
Keyword(s):  
Finite Elements ◽  
Strong Earthquake ◽  
Three Dimensional ◽  
Finite Elements Method ◽  
Bridge Piers ◽  
Non Linear

Free Undamped Vibration of Geometrically Non-Linear Cable Structures

1997 ◽  
Author(s):  
Alan S. K. Kwan
Keyword(s):  
Finite Elements ◽  
Mass Matrix ◽  
Three Dimensional ◽  
Geometrically Nonlinear ◽  
Theoretical Derivation ◽  
Cable Structures ◽  
Non Linear ◽  
Membrane Models ◽  
High Degree ◽  
Axial Element

The stiffness relationship and the distributed mass matrix for a geometrically nonlinear three dimensional straight axial element is derived for use in prestressed cablenet structures. The justification for the use of a linearised stiffness relationship is provided through a theoretical derivation. Results using this simple element have shown a high degree of correlation with results to those available in the literature obtained with more complex curved finite elements, analogous membrane models and other techniques.

LTCC Enzymatic Microreactor

2007 ◽  
Vol 4 (2) ◽  
pp. 51-56 ◽  
Author(s):  
Karol Malecha ◽  
Dorota Pijanowska ◽  
Leszek Golonka ◽  
Wladyslaw Torbicz
Keyword(s):  
Finite Elements ◽  
Low Temperature ◽  
Immobilized Enzyme ◽  
Three Dimensional ◽  
Finite Elements Method ◽  
Fluid Movement ◽  
Chemically Modified ◽  
Polymeric Beads ◽  
Immobilization Techniques ◽  
Made In

A novel three dimensional LTCC (Low Temperature Co-fired Ceramics) based microreactor with immobilized enzyme (urease) is presented in this paper. The microreactor consists of two chambers separated by a threshold. The shape of the chambers was optimized by the Finite Elements Method. The modeling has brought a better understanding of the microflow of chemically modified glass or polymeric beads through the microreactor. The modeling results are verified by the observation of the fluid movement inside the real structure via a top transparent polymer layer. Moreover, immobilization techniques of enzymes on polymeric beads are investigated. Finally, the properties of the LTCC microreactor are compared with the properties of a similar one made in silicon.

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