Computer Aided Olive Oil−Gas Partition Coefficient Calculations

1997 ◽  
Vol 37 (3) ◽  
pp. 569-575 ◽  
Author(s):  
Gilles Klopman ◽  
Congmei Ding ◽  
Orest T. Macina
Keyword(s):  
Partition Coefficient ◽  
Olive Oil ◽  
Computer Aided ◽  
Oil Gas

scholarly journals The Conical Stones Olive Oil Mill: Analysis through Computer-Aided Engineering

Agriculture ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 255 ◽  
Author(s):  
José Ignacio Rojas-Sola ◽  
Eduardo De la Morena-De la Fuente
Keyword(s):  
Olive Oil ◽  
Computer Aided Engineering ◽  
Operating Conditions ◽  
Frame Structure ◽  
Von Mises Stress ◽  
Maximum Displacement ◽  
Safety Coefficient ◽  
A Value ◽  
Computer Aided ◽  
Von Mises

This article analyzes an olive oil mill formed of four conical stones used in the milling of the olive. To this end, a study of computer-aided engineering (CAE) was carried out using the parametric software Autodesk Inventor Professional, consisting of a static analysis using the finite-element method (FEM) of the three-dimensional (3D) model of the mill under real operating conditions. The results obtained revealed that the conical stones mill was a very robust machine. When studying the assembly in the most unfavorable situation (blockage of one of its millstones), we observed that the element with the highest von Mises stress was the bearing nut, reaching a value of 263.9 MPa, which was far from the elastic limit of cast iron (758 MPa). On the other hand, the machine hardly presented any equivalent deformations or displacements that could jeopardize the operation as a whole. The maximum displacement obtained was 2.494 mm in the inertia flywheel, and the equivalent deformations did not reach 0.1% of the part dimension. Similarly, the element with the lowest safety coefficient (2.87) was the same bearing nut with the highest von Mises stress, although the next element with the second lowest safety coefficient had a value of 8.69, which showed that the set was clearly oversized. These results demonstrate the convenience of redesigning the set in order to resize some of its elements, and that they could have lower safety coefficients of between 2 and 4. After an initial analysis, the resizable elements would fundamentally be those related to the movement transmission system and the frame structure.

scholarly journals Computer-aided discovery of biological activity spectra for anti-aging and anti-cancer olive oil oleuropeins

Aging ◽  
2014 ◽  
Vol 6 (9) ◽  
pp. 731-741 ◽  
Author(s):  
Bruna Corominas-Faja ◽  
Elvira Santangelo ◽  
Elisabet Cuyàs ◽  
Vicente Micol ◽  
Jorge Joven ◽  
...  
Keyword(s):  
Biological Activity ◽  
Olive Oil ◽  
Anti Cancer ◽  
Computer Aided

scholarly journals The Tower Press for Obtaining Olive Oil: Analysis through Computer-Aided Engineering

Agriculture ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 554
Author(s):  
José Ignacio Rojas-Sola ◽  
Eduardo De la Morena-De la Fuente ◽  
Manuel Jesús Hermoso-Orzáez ◽  
David Hernández-Díaz
Keyword(s):  
Olive Oil ◽  
Static Analysis ◽  
Computer Aided Engineering ◽  
Operating Conditions ◽  
Von Mises Stress ◽  
Screw Thread ◽  
Maximum Displacement ◽  
Safety Coefficient ◽  
Computer Aided ◽  
Von Mises

This article analyzes a large tower press used to press crushed olives to obtain olive oil. To this end, a study of computer-aided engineering (CAE) was carried out using the parametric software Autodesk Inventor Professional, consisting of a static analysis using the finite-element method (FEM) of the 3D model of the press under real operating conditions. The tower press has been analyzed in two limit positions: in the rest position, supported on two pillars, and the pressing position, supported on the set of filter discs (basket load) called ‘cargo de capachos’ that contained the previously ground olives. In the first position, static analysis revealed that the maximum von Mises stress was 22.7 MPa, located on the axle of the roller, but this is far from the elastic limit. Moreover, the lowest safety coefficient is 11.16, produced in the contact between the tower and the right pillar and well above the optimal range between 2 and 4. On the other hand, it hardly presents equivalent displacements or deformations that would endanger the operation of the set. The greatest displacement would be in the wooden guide (0.123 mm) and a deformation of 0.027% with respect to its length. These values confirm that, in this position, the tower press was clearly oversized. However, the results obtained regarding the second position are not entirely conclusive. Although the values of the displacements and the equivalent deformations are low, with results similar to those obtained in the first position, with a maximum displacement of 0.1315 mm located in the horizontal beam of the support structure and a maximum equivalent deformation of value 0.385%, located in the contact between the screw and the nut, the same does not happen with the von Mises stress. The software did not obtain a convergent result due to the frustoconical geometry of the bolt that joins the screw and nut, adopting a maximum value of 508.3 MPa. For this point, the safety coefficient is 1.49, which reveals a sizing problem with the proposed solution of resizing the screw thread, giving it more robustness. The rest of the elements work with a safety coefficient above 4.33 so they are also clearly oversized, according to current criteria.

Computer-aided methods for 3-D visualization of serial sections and thick biological specimens

1992 ◽  
Vol 50 (2) ◽  
pp. 1060-1061
Author(s):  
Mark Ellisman ◽  
Maryann Martone ◽  
Gabriel Soto ◽  
Eleizer Masliah ◽  
David Hessler ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Three Dimensional ◽  
Neuritic Plaque ◽  
Dimensional Structure ◽  
Data Sets ◽  
Molecular Physiology ◽  
Research Activities ◽  
Computer Aided ◽  
Dimensional Reconstruction

Structurally-oriented biologists examine cells, tissues, organelles and macromolecules in order to gain insight into cellular and molecular physiology by relating structure to function. The understanding of these structures can be greatly enhanced by the use of techniques for the visualization and quantitative analysis of three-dimensional structure. Three projects from current research activities will be presented in order to illustrate both the present capabilities of computer aided techniques as well as their limitations and future possibilities.The first project concerns the three-dimensional reconstruction of the neuritic plaques found in the brains of patients with Alzheimer's disease. We have developed a software package “Synu” for investigation of 3D data sets which has been used in conjunction with laser confocal light microscopy to study the structure of the neuritic plaque. Tissue sections of autopsy samples from patients with Alzheimer's disease were double-labeled for tau, a cytoskeletal marker for abnormal neurites, and synaptophysin, a marker of presynaptic terminals.

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