Institution
Instituto Superior Técnico
Education•
About: Instituto Superior Técnico is a based out in . It is known for research contribution in the topics: Catalysis & Finite element method. The organization has 10085 authors who have published 30226 publications receiving 667524 citations. The organization is also known as: IST & Instituto Superior Tecnico.
Topics: Catalysis, Finite element method, Population, Black hole, Ionic liquid
Papers published on a yearly basis
Papers
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TL;DR: In this article, an assessment of the efficiency of the Kriging interpolation models as surrogate models for structural reliability problems involving time-consuming numerical models such as nonlinear finite element analysis structural models is performed through a systematic comparison of the failure probability predictions based on the first-order reliability method using the most common first-and second-order polynomial regression models and the kriging models as surrogates for the true limit state function.
153 citations
TL;DR: In this article, a generic wheel-rail contact detection formulation is presented in order to determine online the contact points, even for the most general three-dimensional motion of the wheelset, which allows the study of lead and lag flange contact scenarios.
Abstract: The guidance of railway vehicles is determined by a complex interaction between the wheels and rails, which requires a detailed characterization of the contact mechanism in order to permit a correct analysis of the dynamic behavior. The kinematics of guidance of the wheelsets is based on the wheels and rails geometries. The movement of the wheelsets along the rails is characterized by a complex contact with relative motions on the longitudinal and lateral directions and relative rotations of the wheels with respect to the rails. A generic wheel–rail contact detection formulation is presented here in order to determine online the contact points, even for the most general three-dimensional motion of the wheelset. This formulation also allows the study of lead and lag flange contact scenarios, both fundamental for the analysis of potential derailments or for the study of the dynamic behavior in the presence of switches. The methodology is used in conjunction with a general geometric description of the track,...
153 citations
TL;DR: In this paper, the main structural and topological types of coordination polymers bearing hexamethylenetetramine (hmt) are summarized, showing that a diversity of metal-organic networks can be generated by facile self-assembly routes in aqueous medium and using rather simple chemicals.
153 citations
TL;DR: The parameters that affect protein solubilization into the reversed micelles and the equilibrium and kinetics aspects that are involved in the extraction and back‐extraction of proteins are discussed.
Abstract: The recovery of proteins using reversed micelles is a liquid-liquid extraction process that has received increasing attention since proteins were shown to be solubilized in organic solvents with surfactants, maintaining their functional properties, and to be transferred between an aqueous solution and a reversed micellar organic phase. This article reviews the application of reversed micellar systems as a bioseparation technique for isolation and purification of proteins. The parameters that affect protein solubilization into the reversed micelles and the equilibrium and kinetics aspects that are involved in the extraction and back-extraction of proteins are discussed. Several examples are also described including the application of this technique for purification of recombinant proteins : cytochrome b 5 and a cutinase from Fusarium solani pisi.
152 citations
TL;DR: In this paper, an apparatus where individual bubbles are kept stationary in a downward liquid flow was adapted to simultaneously follow mass transfer to/from a single bubble as it inevitably gets contaminated; follow its shape; and periodically measure its terminal velocity.
152 citations
Authors
Showing all 10288 results
| Name | H-index | Papers | Citations |
|---|---|---|---|
| Joao Seixas | 153 | 1538 | 115070 |
| A. Gomes | 150 | 1862 | 113951 |
| Amartya Sen | 149 | 689 | 141907 |
| António Amorim | 136 | 1477 | 96519 |
| Joao Varela | 133 | 1411 | 92438 |
| Pietro Faccioli | 132 | 1378 | 89795 |
| João Carvalho | 126 | 1278 | 77017 |
| Pedro Jorge | 124 | 776 | 68658 |
| Pedro Silva | 124 | 961 | 74015 |
| A. De Angelis | 118 | 534 | 54469 |
| Hermine Katharina Wöhri | 116 | 629 | 55540 |
| Helena Santos | 114 | 1058 | 54286 |
| P. Conde Muiño | 109 | 558 | 56133 |
| Joao Saraiva | 107 | 519 | 53340 |
| J. N. Reddy | 106 | 926 | 66940 |