Consulta: subjectFacets:"Operation"
Registros recuperados: 6
Data/hora: 01/06/2024 10:20:40

Los sistemas de información geográfica como herramientas para el diagnóstico integral y el mejoramiento de la operación del distrito de riego 014 Río Colorado , B. C. y Son.
Provedor de dados: 32
Autores: Camacho Martínez, Pedro.
La actividad agrícola genera gran cantidad de  información en su desarrollo; el análisis y uso de esa información permite una mejor toma de decisiones y una planeación de la misma. Una de las tecnologías para el manejo de la información es el empleo de los Sistemas de Información Geográfica (SIG), que permiten trabajar en forma integrada y organizada los datos geográficos y numéricos existentes con la finalidad de facilitar su almacenamiento, actualización, manipulación, análisis y su presentación en forma gráfica. El Distrito de Riego 014 Río Colorado, por la superficie dominada, es uno de los más importantes en el Noroeste de México, sin embargo, debido a la transferencia de los distritos a los usuarios, la Comisión Nacional del Agua (CONAGUA), como...
Palavras-chave: Sistemas de información geográfica; Distrito de riego 014 río colorado; Transferencia; Operación; Geographic information systems; Irrigation district 014; Transfer; Operation; Maestría; Hidrociencias.
Ano: 2010
URL: http://hdl.handle.net/10521/216

Los sistemas de información geográfica como herramientas para el diagnóstico integral y el mejoramiento de la operación del distrito de riego 014 Río Colorado , B. C. y Son.
Provedor de dados: 32
Autores: Camacho Martínez, Pedro.
La actividad agrícola genera gran cantidad de  información en su desarrollo; el análisis y uso de esa información permite una mejor toma de decisiones y una planeación de la misma. Una de las tecnologías para el manejo de la información es el empleo de los Sistemas de Información Geográfica (SIG), que permiten trabajar en forma integrada y organizada los datos geográficos y numéricos existentes con la finalidad de facilitar su almacenamiento, actualización, manipulación, análisis y su presentación en forma gráfica. El Distrito de Riego 014 Río Colorado, por la superficie dominada, es uno de los más importantes en el Noroeste de México, sin embargo, debido a la transferencia de los distritos a los usuarios, la Comisión Nacional del Agua (CONAGUA), como...
Palavras-chave: Sistemas de información geográfica; Distrito de riego 014 río colorado; Transferencia; Operación; Geographic information systems; Irrigation district 014; Transfer; Operation; Maestría; Hidrociencias.
Ano: 2010
URL: http://hdl.handle.net/10521/216

Rheological behavior of Chlorella sp. e Scenedesmus sp. cultures in different biomass concentrations
Provedor de dados: 70
Autores: Santos,Michel de O. dos; Martins,Márcio A; Coimbra,Jane S. dos R.; Gates,Richard S.; Corrêdo,Lucas de P.
Studies involving the use of microalgae are increasingly intensifying for the potential they present to produce biofuels, because they are a renewable energy source that does not compete directly with food production, and because they enable the obtaining of a fuel with less environmental impact when compared to fossil fuel. In this context, the use of microalgae is directly associated to its capacity to be produced on a large scale and to be extracted from the culture medium. Rheological studies are important for obtaining the information needed in the elaboration of projects and equipment that will be used in various operations existing in systems of production and extraction of algal biomass. In the evaluation of different levels of dry biomass...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Microalgae; Biomass; Production; Operation.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162013000500017

Temporal variation in fish community in the tailrace at Três Marias Hydroelectric Dam, São Francisco River, Brazil
Provedor de dados: 83
Autores: Loures,Raquel Coelho; Pompeu,Paulo Santos.
Damming rivers to generate hydroelectric energy causes a series of changes in the environment, including impacts on the ichthyofauna. Knowledge of the fish community immediately downstream from a hydroelectric dam can help to reduce the negative effects of dam operation, such as fish entrance into the draft tube during turbines maintenance. We evaluated the temporal variation in fish community composition and abundance, near Três Marias Hydroelectric Dam (TMD), and its relationship with abiotic variables. Samples (n = 18) were carried out using gill nets in the tailrace of the dam, over the course of a hydrological year, at six time points during a 24-hour period. Abiotic data were also sampled to assess the relationship with the biotic data. In the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish kill; Ichthyofauna; Impact; Nictemeral; Operation.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000400006

NON-AGRICULTURAL COOPERATIVES IN THE UNITED STATES: ROLES, DIFFICULTIES, AND PROSPECTS
Provedor de dados: 31
Autores: Bhuyan,   Sanjib; Leistritz,   F. Larry; Cobia,   David W.
A wide variety of cooperatives outside the agricultural sector have been playing an important role in the nation's rural and urban areas by providing housing for the elderly and poor, affordable health care, child care, and education.  These firms may constitute both business models that reduce the cost of operating a business and effective community development models that forge cooperation among local government and communities.  However, limited information is available about how these non-agricultural cooperatives operate, how they were formed, or what are their problems or difficulties as non-traditional cooperatives.  This study of 162 randomly selected non-agricultural cooperatives across the United States attempts to answer these questions and...
Tipo: Working or Discussion Paper
Palavras-chave: Non-agricultural cooperatives; Formation; Operation; Factors affecting success; Community/Rural/Urban Development.
Ano: 1998
URL: http://purl.umn.edu/23134

Assessing irrigation performance with comparative indicators:  The case of the Alto Rio Lerma Irrigation District, Mexico
Provedor de dados: 31
Autores: Kloezen,   Wim H.; Garces-Restrepo,   Carlos.
Describes and evaluates the application of IWMI's minimum set of performance indicators to the Alto Rio Lerma Irrigation District, and compares this with the application of a small set of process performance indicators.
Tipo: Report
Palavras-chave: Irrigation management; Irrigation scheduling; Water allocation; Water distribution; Case studies; Institutional constraints; Operation; Monitoring; Indicators; Performance indexes; Water rights; Economic aspects; Data collection; Environmental effects; Performance evaluation; Water use efficiency; Crop Production/Industries; Institutional and Behavioral Economics; Production Economics.
Ano: 1998
URL: http://purl.umn.edu/44580