Papers by Eduardo Orozco Morales
Qualitative simulation (QS) is an area of artificial intelligence that represent continuos and di... more Qualitative simulation (QS) is an area of artificial intelligence that represent continuos and discrete aspects like space, time and quantity with little information, and makes inferences using symbolic data to represent physical quantities. Tradicionally, QS uses a global statebased representation to represent the behavior of the system. To qualitative simulate a system, some initial values are normally given, along with qualitative differential equations (QDEs). With this information, a qualitative simulation algorithm evaluates all possible combinations of qualitative values and filters out inconsistent states considering qualitatives constraints. This is a combinational process which normally requires exponential time. In this paper, a new algorithm is described which simulates individual components independently and joins their behavioral graphs together until a global behavioral graph is obtained. This algorithm achieves substantial reductions in time and it is polynomial with respect to the number of components. It is shown how with this algorithm is possible to simulate industrial plants of hundreds of variables within a few minutes.
Limnologica, 2002
A serious impediment in the study of small araphid diatoms is their size. Important diagnostic ch... more A serious impediment in the study of small araphid diatoms is their size. Important diagnostic characters often are too small to be resolved by light microscopy, which has a negative effect on routine ecological analyses . Without adequate resolution, taxa requiring SEM accumulate in 0075-9511/02/32/02-102 $ 15.00/0 Limnologica (2002) 32, 102-113 Limnologica 32, 102-113 (2002)
Proceedings of the Academy of Natural Sciences of Philadelphia, 2005
A new diatom genus typified by the new species Lacunicula sardiniensis Lange-Bertalot, Cavacini, ... more A new diatom genus typified by the new species Lacunicula sardiniensis Lange-Bertalot, Cavacini, Tagliaventi et Alfinito was recently described by Lange-Bertalot and collaborators from ephemeral pools in Sardinia, Italy. The new genus is mainly characterized by the presence of an external channel system found in the axial area on both sides of the raphe fissure. We present here a detailed analysis of a North American population of the same species from Zollner Creek, Oregon. Based on light microscopy (LM) and scanning electron microscopy (SEM) data, it is proposed that the mentioned species be placed in the genus Craticula Grunow instead. Lacunicula sardiniensis shares many characteristics with species currently placed in Craticula; among them are: 1) the characteristically raised axial area in both internal and external views, 2) the presence of a conopeum along the axial area of the valves, 3) the similarity of areolar and velum patterns and characteristics in both external and internal views of the valves, 4) the similarity in the structure of the raphe and helictoglossa, and 5) the presence of longitudinal ridges on the valve mantle and valve face. Thus, the new combination Craticula sardiniensis (Lange-Bertalot, Cavacini, Tagliaventi et Alfinito) Morales et Le is proposed and the relationship of the taxon with closely related species in the genus Craticula is presented in the light of available literature.
Uploads
Papers by Eduardo Orozco Morales