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Mostrando ítems 1-10 de 1948
A TRAP-SPLITTER UNIT FOR COUPLING PREPARATIVE GAS CHROMATOGRAPHIC COLUMNS TO ANALYTICAL CAPILLARY COLUMNSA TRAP-SPLITTER UNIT FOR COUPLING PREPARATIVE GAS CHROMATOGRAPHIC COLUMNS TO ANALYTICAL CAPILLARY COLUMNS
(University of Puerto Rico Mayagüez Campus Agricultural Experiment Station, 1977)
From Relational to a Column-based Database: A quasi-experiment
(Faculdade Três de Maio, 2017-01)
This work reports the authors? experience migrating a dataset from relational to a column-based database. The goal of the experiment is to identify and depict the several challenges faced by a group of advanced students ...
Compression of Very Sparse Column Oriented Data
(Universidade Federal de Santa Maria, 2016)
Uptake of copper (II) ions from acidic aqueous solutions using a continuous column packed with microcapsules containing a β-hydroxyoximic compound
(2011)
In this paper, the uptake of Cu(II) ions from an acidic aqueous solution using a continuous column packed with microcapsules containing the chelating extractant LIX-860 N-IC was examined. A simple, economical method was ...
A branch-and-price approach to p-median location problems
(Elsevier B.V., 2005-06-01)
This paper describes a branch-and-price algorithm for the p-median location problem. The objective is to locate p facilities (medians) such as the sum of the distances from each demand point to its nearest facility is ...
A branch-and-price approach to p-median location problems
(Elsevier B.V., 2005-06-01)
This paper describes a branch-and-price algorithm for the p-median location problem. The objective is to locate p facilities (medians) such as the sum of the distances from each demand point to its nearest facility is ...
Column generaton methods assignment problemsMétodos de geração de colunas para problemas de atribuição
(2007-01-01)
This work presents column generation methods for two important assignment problems: the Generalized Assignment Problem (GAP) and the problem of assigning calls to switches in cellular mobile networks (PAGS) G4P is one of ...
Removal of arsenic and iron from acidic water using zeolite and limestone: batch and column studies
(Springer, 2017)
Zeolite and limestone were tested for their capability of removing As and Fe from acidic water in batch and column experiments. Synthetic acidic water with 3 mg/L As and 50 or 100 mg/L Fe at pH = 2 was used in the column ...
New Developments in the Primal-Dual Column Generation Technique
(, 2013)
The optimal solutions of the restricted master problems typically leads to an unstable behavior of the standard column generation technique and, consequently, originates an unnecessarily large number of iterations of the ...