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| Registros recuperados: 64 | |
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| Goes Filho,Adbeel. |
| This paper presents the practical application of concepts, and some methods of risk analysis, to check the possibility of overcoming a water level of project in the spillway of dam Orós, by excess of influent flow. Also evaluated the empirical formulas contained in the original design. Due to the difficulty of obtaining design data from the dam, since the end of construction date of January, 11, 1961, we minimize the effects of some variables in the calculations, leading us to the consequent simplification of the scenario under study. For a better evaluation and characterization of the setting, some variables in the model such as water level, accumulation and flow of the spillway, had updated their data to June 28, 2011. We have demonstrated the importance... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Risk analysis; Public dams; Reservoirs; Water resources management. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000100405 |
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| Toledo,Roger; Engler,Alejandra; Ahumada,Víctor. |
| Risk in the agricultural sector has multiple dimensions or factors and prioritization of these can support decision making. On the other hand, knowing the importance of these risk factors for distinct agricultural activities and how they vary according to geographic zone constitutes relevant information for agricultural development. The objective of this study was to prioritize risk factors that are highly relevant for farmers in Central South Chile. The multi-criteria Analytical Hierarchical Process (AHP) methodology was used to define a decision structure with four risk factors or criteria: climate, price and direct cost variability, human factor, and commercialization. In general, results obtained showed that there are no important imbalances in the... |
| Tipo: Journal article |
Palavras-chave: Risk analysis; AHP; Multi-criteria decisions. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000100014 |
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| Pacheco,Paulo Santana; Vaz,Fabiano Nunes; Restle,João; Ávila,Mozer Manetti de; Olegario,Janaine Leal; Menezes,Fernanda Rezer de; Valença,Karoline Gomes; Lemes,Daniel Batista; Vargas,Fabiano Vargas de. |
| The joint analysis of indicators of the investment project is very relevant in making decisions, resulting in more consistent information regarding risk assessment and its confrontation with the possibility of return. This research aimed to evaluate the economic feasibility of Red Angus young steers finished in feedlot, slaughtered at 340, 373, 396 or 430kg with use of various financial indicators, marketed with or without bonus. The purchase of feeder cattle and feeding were variable costs with a higher share in the total cost. In the analysis with bonus, the regression analysis to gross margin, net margin, net present value, benefit:cost index and additional return on investment showed quadratic behavior, with the point of maximum at 406kg (R$ 185.17),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Investment analysis; Risk analysis; Beef cattle; Ideal slaughter weight; Termination system. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000300492 |
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| Ventura Ríos, Araceli. |
| Se ubicaron 29 poblaciones naturales de Pseudotsuga menziesii en Hidalgo, Tlaxcala y Puebla, con un estimado de 9,029 árboles adultos, en 682 ha que se ubican desde 2,450 a 3,400 m s.n.m. Las localidades son de clima templado, con temperatura media anual de 10.1 a 14.0 °C y precipitación de 611 a 1,109 mm anuales. Pseudotsuga convive con Abies religiosa y varias especies de Pinus y Quercus, en exposiciones N, NO y NE. Los suelos son de pH ligeramente ácidos, ricos en materia orgánica y clase textural franco-arenosa o franca. El tamaño poblacional varía de 4 a 1,450 árboles maduros; 11 de éstas menos de 100 individuos adultos, con poca repoblación natural en todas ellas. Existe gran fragmentación en su distribución natural. Con base en un análisis de... |
| Tipo: Tesis |
Palavras-chave: Pinabete; Abeto Douglas; Caracterización ecológica; Conservación de poblaciones; Movimiento de semillas; Análisis de riesgos; Proceso de Análisis Jerarquizado (PAJ).; Maestría; Forestal; Douglas-fir; Ecological characterization; Population conservation; Seed movement; Risk analysis; Analytical hierarchy process (AHP). |
| Ano: 2009 |
URL: http://hdl.handle.net/10521/1566 |
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| Marques,Patricia Angélica A; Bernardi Filho,Lineu; Frizzone,José Antônio. |
| The oregano is a plant, rich in essential oil and very used as spice in the preparation of foods. The objective of this paper was to analyze the viability of irrigation for oregano in Presidente Prudente, São Paulo state, Brazil, including economic risk factors, their effect on irrigation total cost, as well as the different pumping kinds. The Monte Carlo simulation was utilized to study the economic factors: fixed cost, labor, maintenance, pumping and water. The use of irrigation for the oregano in the region of Presidente Prudente is indicated because of its economic feasibility and the reduced risks. The average values of the benefit/cost for all water depths tested were higher than 1, indicating viability. The use of irrigation promoted lower risks... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Origanum vulgare; Pumping; Economic viability; Risk analysis; Medicinal plants. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362012000200009 |
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| Pernet, Fabrice; Gachelin, Sonia; Stanisière, Jean-yves; Petton, Bruno; Fleury, Elodie; Mazurié, Joseph. |
| The intertidal zone is characterized by a sharp vertical gradient of environmental stress, which structures species distribution and their interactions. Few studies, however, have examined the influence of tidal height on host–pathogen interactions. Here, we investigated how the tidal height influence outbreak of the Ostreid herpesvirus type 1 (OsHV-1) affecting the Pacific oyster. A volunteer network composed of 20 oyster growers monitored the survival of 28 batches of oysters during an epizootic event in Southern Brittany, France. Oysters were spat from wild collection or hatchery production. The sampling sites were spread over a 150-km2 area with a tidal height ranging from 0.98 to 2.90 m. Concomitantly, we followed survival of oyster spats in relation... |
| Tipo: Text |
Palavras-chave: Aquaculture; Citizen science; Marine epidemiology and health; OsHV-1; Risk analysis. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00491/60271/63981.pdf |
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| Arzul, Isabelle; Ariel, E.; Hill, B.. |
| The PANDA project aims to establish a permanent network of aquatic animal health specialists (researchers and diagnosticians) to provide a forum for the debate of issues concerning diseases in European aquaculture, and to communicate the results of these discussions to the European Commission with provision of advice on EU policy and legislation for aquatic animal health. PANDA consists of five scientific work packages: risk analysis, epidemiology, diagnosis, environmentally safe strategies for disease control, training in research and diagnostics. These work packages are lead by PANDA consortium members, supported by small task force of specialists, with wider input from experts registered in the PANDA network. Focused workshops and ongoing online... |
| Tipo: Text |
Palavras-chave: Aquatic infectious diseses; Diagnosis; Risk analysis; PANDA; Animal health. |
| Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/acte-3320.pdf |
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| Copp, G. H.; Godard, M. J.; Russell, I. C.; Peeler, E. J.; Gherardi, F.; Tricarico, E.; Miossec, Laurence; Goulletquer, Philippe; Almeida, D.; Britton, J. R.; Vilizzi, L.; Mumford, J.; Williams, C.; Reading, A.; Rees, E. M. A.; Merino-aguirre, R.. |
| Developed for carrying out risk assessments under the European Commission (EC) Council Regulation No 708/2007 concerning the use of alien and locally absent species in aquaculture (ASR), the European Non-native Species in Aquaculture Risk Assessment Scheme (ENSARS) is briefly summarised, and the ‘Organism’ module is applied to the 24 species listed in ASR's Annex IV. Four other ENSARS modules (Infectious Agent, Facility, Pathway, and Socio-economic) were used to assess two case study species (European catfish Silurus glanis L. and red swamp crayfish Procambarus clarkii Girard). No Annex IV species was categorised as low risk, 10 as moderately low risk, 12 as medium risk, two as moderately high risk and none as high risk. The results are discussed and... |
| Tipo: Text |
Palavras-chave: Aquaculture; Biological invasions; Decision support; ENSARS; EU legislation; Risk analysis. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00189/30032/29433.pdf |
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| Fuhrmann, Marine; Petton, Bruno; Quillien, Virgile; Faury, Nicole; Morga, Benjamin; Pernet, Fabrice. |
| Mortality of young Pacific oysters Crassostrea gigas associated with the ostreid herpesvirus 1 (OsHV-1) is occurring worldwide. Here, we examined for the first time the effect of salinity on OsHV-1 transmission and disease-related mortality of C. gigas, as well as salinity-related effects on the pathogen itself. To obtain donors for OsHV-1 transmission, we transferred laboratory-raised oysters to an estuary during a disease outbreak and then back to the laboratory. Oysters that tested OsHV-1 positive were placed in seawater tanks (35‰, 21°C). Water from these tanks was used to infect naïve oysters in 2 experimental setups: (1) oysters acclimated or non-acclimated to a salinity of 10, 15, 25 and 35‰ and (2) oysters acclimated to a salinity of 25‰; the... |
| Tipo: Text |
Palavras-chave: Bivalve; Herpesviridae; Infection; Disease transmission; Risk analysis. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00350/46100/45781.pdf |
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| Registros recuperados: 64 | |
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