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Registros recuperados: 38 | |
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Silva,Alessandra F.; Barbosa,Ana Paula; Zimback,Célia R. L.; Landim,Paulo M. B.. |
This study compares the precision of three image classification methods, two of remote sensing and one of geostatistics applied to areas cultivated with citrus. The 5,296.52ha area of study is located in the city of Araraquara - central region of the state of São Paulo (SP), Brazil. The multispectral image from the CCD/CBERS-2B satellite was acquired in 2009 and processed through the Geographic Information System (GIS) SPRING. Three classification methods were used, one unsupervised (Cluster), and two supervised (Indicator Kriging/IK and Maximum Likelihood/Maxver), in addition to the screen classification taken as field checking.. Reliability of classifications was evaluated by Kappa index. In accordance with the Kappa index, the Indicator kriging method... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Indicator Kriging; Cluster; Maxver; CBERS-2B satellite; Spatial classification. |
Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162013000600017 |
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Brito,Luiza T. de L.; Silva,Aderaldo de S.; Srinivasan,Vajapeyam S.; Galvão,Carlos de O.; Gheyi,Hans R.. |
Este estudo teve por objetivo identificar as variáveis responsáveis pela maior variabilidade da qualidade das águas subterrâneas da bacia hidrográfica do Rio Salitre - BA, e detectar as fontes que apresentam características semelhantes, visando a subsidiar medidas de monitoramento e gestão da qualidade das águas da bacia. Para isso, foram utilizadas técnicas de análise multivariada referente à análise fatorial em componentes principais e de agrupamento. A análise fatorial permitiu agrupar as variáveis em três fatores principais que explicaram 86,99%; 72,08% e 68,33% da variância total acumulada em 1984 e 2001, nos períodos de chuvas e sem chuvas, respectivamente. As variáveis priorizadas estão relacionadas com a salinidade das águas. Assim, medidas de... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Impactos ambientais; Análise fatorial; Cluster. |
Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162006000100005 |
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Deporte, Nicolas; Ulrich, Clara; Mahevas, Stephanie; Demaneche, Sebastien; Bastardie, Francois. |
The European Common Fisheries Policy recognizes the importance of accounting for heterogeneity in fishing practices, and metier-based sampling is now at the core of the EU Data Collection Framework. The implementation of such an approach would require Member States to agree on the standard regional metier definitions and on practical rules to categorize logbook records into metiers. Several alternative approaches have been used in the past to categorize landings profiles, but no consensus has yet emerged. A generic open-source workflow is developed to test and compare a selection of methods, including principal components analysis (PCA), hierarchical agglomerative clustering (HAC), K-means, and Clustering LARge Applications (CLARA), and to provide simple... |
Tipo: Text |
Palavras-chave: Cluster; Data Collection Framework (DCF); Logbooks; Mtier; Mixed fisheries; Multivariate analysis; North Sea. |
Ano: 2012 |
URL: https://archimer.ifremer.fr/doc/00071/18225/15841.pdf |
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Gelin, Pauline; Fauvelot, Cecile; Bigot, Lionel; Baly, Joseph; Magalon, Helene. |
Here, we examined the genetic variability in the coral genus Pocillopora, in particular within the Primary Species Hypothesis PSH09, identified by Gélin, Postaire, Fauvelot and Magalon (2017) using species delimitation methods [also named Pocillopora eydouxi/meandrina complex sensu, Schmidt-Roach, Miller, Lundgren, & Andreakis (2014)] and which was found to split into three secondary species hypotheses (SSH09a, SSH09b, and SSH09c) according to assignment tests using multi-locus genotypes (13 microsatellites). From a large sampling (2,507 colonies) achieved in three marine provinces [Western Indian Ocean (WIO), Tropical Southwestern Pacific (TSP), and Southeast Polynesia (SEP)], genetic structuring analysis conducted with two clustering analyses... |
Tipo: Text |
Palavras-chave: Bayesian assignments; Cluster; DAPC; Microsatellites; Pocillopora; Scleractinian. |
Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00416/52776/53649.pdf |
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Huang, Zuhui; Zhang, Xiaobo; Zhu, Yunwei. |
Wenzhou used to be one of the poorest regions in eastern China. With limited arable land, poor road access to major cities, and little support from the upper level governments, this region seemed to lack all the conditions necessary for economic growth. However, over the past several decades Wenzhou has developed the most dynamic private sector in China, and has accordingly achieved one of the fastest growth rates. In particular, the footwear industry in Wenzhou has grown from a negligible market share to the largest in China. Here, we report a survey of 140 Wenzhou-based footwear enterprises of various scales, and use this information to examine the driving forces behind the dramatic rural industrial growth seen in this region. Our results show that... |
Tipo: Working or Discussion Paper |
Palavras-chave: Cluster; Industrialization; Finance; Economic development; Nonfarm economy.; Community/Rural/Urban Development. |
Ano: 2007 |
URL: http://purl.umn.edu/42408 |
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Herbaly-Hekli, Katalin. |
Together with its partners, Szolnok College is planning to evaluate a new project for networking on the utilization of local natural resources. This project is based on a research work (using the findings of the surveys completed by the representatives of hosts living in the eastern part of Hungary). The project itself is based on the adaptation of the theory of tourism into practice by presenting existing natural values in the supply portfolio of tourist service providers. A unique natural environment can be found alongside a 120 km-long stretch of River Tisza. These natural values interlink and complete each other with respect to Lake Tisza and River Tisza. Regions and settlements situated further from the specified settlements are also rich in natural... |
Tipo: Journal Article |
Palavras-chave: Networking; Cluster; Register of unique natural values and handicraft/economic activities; Marketing. |
Ano: 2011 |
URL: http://purl.umn.edu/104668 |
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Gergely, Sandor. |
The area of the North-Hungarian Region is 13,429 km2, which is 14.4% of the country’s territory. In terms of area and population the region lies in fourth place in Hungary. The region is remarkable for the beauty of its landscapes, which are rich in untouched natural values with its significant ecological potential. Among its natural treasures we can find medicinal, thermal and mineral water springs. The wine producing regions of Eger and Gyöngyös are well known in Europe, while Tokaj is world famous. Significant problems in the North-Hungarian Region are unemployment exceeding the national average, caused by adaptation and modernisation crises, low-level employment, and the concentrated appearance of underdeveloped settlements and population groups. As... |
Tipo: Journal Article |
Palavras-chave: Small businesses; Competitiveness; Cluster; Network economy; Agribusiness; Agricultural and Food Policy. |
Ano: 2008 |
URL: http://purl.umn.edu/48091 |
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Ruan, Jianqing; Zhang, Xiaobo. |
Traditional economic theory posits that a well functioning capital market is a necessary condition for industrialization and economic growth. However, in reality it is observed that micro and small enterprises are ubiquitous because entrepreneurs can set up business in low-return activities with minimal barriers to entry. Using a cashmere sweater cluster in China as an example, this paper shows that organizational choice can overcome the prohibitive cost of investment. Facing credit constraints, firms are more likely to concentrate in divisible production technologies in the form of industrial clusters. With clusters, a vertically integrated production process can be decomposed into many small incremental stages, making them more accessible for small... |
Tipo: Conference Paper or Presentation |
Palavras-chave: Cluster; Putting-out; Subcontract; Industrialization; Entrepreneurship; China; Industrial Organization; International Development. |
Ano: 2009 |
URL: http://purl.umn.edu/50334 |
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Ney, Vanuza Da Silva Pereira; Ponciano, Niraldo Jose; Zampirolli, Poliana Dare. |
O artigo discute a formação e as características de um arranjo produtivo local tendo como base os elementos: cooperação, governança e inovação. Para isso resgata-se na literatura econômica os conceitos teóricos fundamentais de firma, inovação e concorrência, apresentando na última seção o caso do APL do mamão no Espírito Santo como exemplo de cooperação e esforço dos atores econômicos envolvidos no setor para seu fortalecimento e êxito no mercado externo. This article discuss the constitution and the characteristics of a cluster having as its base the elements: cooperation, leadership and innovation. For this, it is reviewed on the economic literature the fundamental theoretical concepts of firm, innovation and competition, presenting at the last section... |
Tipo: Conference Paper or Presentation |
Palavras-chave: Arranjo produtivo; Inovação tecnológica; Mamão; Cluster; Innovation; Papaya; Crop Production/Industries. |
Ano: 2008 |
URL: http://purl.umn.edu/103099 |
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Dannenberg, Peter; Kulke, Elmar. |
In human geography the concepts of regional branch clusters have become increasingly important. In these concepts firms of the same or related supply chains work together and cooperate in networks of the same regional, cultural and social background. According to their regional proximity, firms can reduce their transaction costs. Also, having the same regional, cultural and social roots, it is easier for the actors of the co-operation networks to trustfully exchange competition relevant knowledge and to learn from each other. Therefore, the members of these regional clusters posses a higher ability to innovate and thus become competitive. While these concepts were generally based on industrial agglomerations, in 2004 we made a survey on 332 farmers in the... |
Tipo: Working or Discussion Paper |
Palavras-chave: Regional networks; Cluster; Commodity chains; Farms; Community/Rural/Urban Development; Institutional and Behavioral Economics. |
Ano: 2005 |
URL: http://purl.umn.edu/18815 |
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Sugano, Joel Yutaka; Santos, Antonio Carlos dos. |
Given that the fast transformations occurred in national and international scenery point out to a necessity of gain of efficiency to increase in competitiveness to the firms, the environment which into they are and into they develop, assume a vital importance as been the supporter foundation of this development. For this environment can be understood as the process of space concentration of many correlative segments of a production chain, also called as clusterization process, which this special conformation gives to the firms special conditions to develops the superior competitive advantages than the others firms isolated. In this sense, this paper aim to arise how occurs the process of conformation of a big cluster, culminating in satisfaction of ten... |
Tipo: Journal Article |
Palavras-chave: Cluster; Competitiveness; Agribusiness Chain.. |
Ano: 2000 |
URL: http://purl.umn.edu/43356 |
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Registros recuperados: 38 | |
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