Development of a Combined Quantity and Quality Model for Optimal Management of Unsteady Groundwater Flow Fields

Presented are alternative techniques for including conservative solute transport within computer models for optimizing groundwater extraction rates. Unsteady two-dimensional flow and dispersed conservative solute transport are assumed. Comparisons are made of the practicality of including modified forms of implicit and explicit finite difference solute transport equations within optimization models. These equations can be calibrated and subsequently used within a MODCON procedure. The MODCON modelling procedure consists of an integrated series of five optimization or simulation modules. The procedure is applicable for either an entire aquifer system or for a subsystem of a larger system. The first module, A, computes physically feasible recharge rates across the boundaries of the modelled subsystem. Module B computes optimal extraction rates without considering groundwater quality. Module C uses method of characteristics simulation to compute solute transport that would result from implementing the pumping strategy of model B. Module D uses linear goal programming and nonlinear solute transport equations to calibrate linear coefficients. It attempts to duplicate the solute transport predicted by module C. Calibration is performed because coarsely discretized implicit or explicit solute transport equations may not be as accurate as the method of characteristics. Module E includes appropriate calibrated equations of module D as well as the flow equations of module B. It computes an optimal pumping (extraction or recharge) strategy that can satisfy future groundwater contaminant concentration criteria. Testing of the validity of this optimal pumping strategy is subsequently accomplished using module C. If necessary, one may cycle through modules C, D and E until convergence is obtained--until concentrations resulting from implementing the strategy of E are demonstrated to be acceptable

Development of a Combined Quanity and Quality Model for Optimal Groundwater Management

Presented is a procedure for incorporating solute transport as linear constraints within computer models for optimizing regional groundwater extraction strategies. The MODCON modelling procedure uses linear goal programming, embedded linearized equations for flow and solute transport and a MOC simulation model. Assumed is 2D flow and solute transport and a dispersed conservative contaminant. The MODCON procedure develops steady groundwater extraction strategies that will satisfy future groundwater quality constraints while simultaneously causing future piezometric heads to be as close to current heads as possible. The procedure is applied to a 160 square mile area in southeastern Arkansas

A first step to accelerating fingerprint matching based on deformable minutiae clustering

Fingerprint recognition is one of the most used biometric methods for authentication. The identification of a query fingerprint requires matching its minutiae against every minutiae of all the fingerprints of the database. The state-of-the-art matching algorithms are costly, from a computational point of view, and inefficient on large datasets. In this work, we include faster methods to accelerating DMC (the most accurate fingerprint matching algorithm based only on minutiae). In particular, we translate into C++ the functions of the algorithm which represent the most costly tasks of the code; we create a library with the new code and we link the library to the original C# code using a CLR Class Library project by means of a C++/CLI Wrapper. Our solution re-implements critical functions, e.g., the bit population count including a fast C++ PopCount library and the use of the squared Euclidean distance for calculating the minutiae neighborhood. The experimental results show a significant reduction of the execution time in the optimized functions of the matching algorithm. Finally, a novel approach to improve the matching algorithm, considering cache memory blocking and parallel data processing, is presented as future work.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Nematodes of the order Dorylaimida from Andalucia oriental, Spain : the family Tylencholaimellidae Jairajpuri, 1964. Part 1

Le présent article a trait à cinq espèces de nématodes appartenant au genre #Tylencholaimellus Cobb in M. V. Cobb, 1915 collectés dans des sites naturels du sud-est de l'Espagne : #T. auringiensis Peralta & Pena Santiago, 1992, #T. minor n. sp., #T. montanus Thorne, 1939, #T. polonicus Szczygiel, 1962 et #T. striatus Thorne, 1939. A l'exception de #T. auringiensis, toutes les espèces sont décrites et illustrées. #T. minor n. sp. présente les caractéristiques suivantes : petite taille (L = 0,46-0,59 micromètres); région labiale hémisphérique séparée par une constriction; lèvres fusionnées; odontostyle = 11,5-12,5 micromètres; odontophore = 4,5-5,5 micromètres; longueur totale du stylet = 16,5-18 micromètres; bulbe pharyngien = 22-25 micromètres; V = 31,6-36,9; vagin précédé par une cavité en forme d'entonnoir; sac prévulvaire = 47-70 micromètres ou 2,3-3,1 diamètres du corps; queue arrondie-conoïde (15,5-17,5 micromètres, c = 27,3-33,9; c' = 1,0-1,4 chez les femelles et 20-21 micromètres, c = 24,3-28,4, c' = 1,40-1,45 chez les mâles); spicules = 20-21 micromètres; un seul supplément ventro-médian. (Résumé d'auteur

Nematodes of the order Dorylaimida from Andalucia oriental, Spain : the families Leptonchidae Thorne, 1935 and Aulolaimoididae Jairajpuri, 1964

Ce sixième article de la série sur les nématodes Leptonchides d'Andalousie orientale (Espagne du sud-est) traite de huit espèces déjà décrites appartenant à six genres différents : #Adenolaimus (#Leptonchidae), #Basirotyleptus, #Funaria, #Leptonchus, #Proleptonchus et #Meylis (#Aulolaimoididae). A l'exception des deux espèces de #Funaria$, les descriptions, mensurations et illustrations du matériel étudié sont données. Quatre espèces sont nouvelles pour la faune européenne. (Résumé d'auteur

The genus Dorylaimoides Thorne and Swanger, 1936 (Nematoda : Dorylaimida) : 1. Taxonomy and variability

Une révision générale des différents aspects de la morphologie et de la taxonomie du genre #Dorylaimoides$ Thorne et Swanger, 1936 est présentée. La variabilité des caractéristiques morphologiques est décrite et illustrée, et leur valeur taxonomique est discutée brièvement. La position taxonomique du genre, ses relations avec d'autres genres et la taxonomie intragénérique sont également traitées. Une liste des espèces est donnée. (Résumé d'auteur