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| Registros recuperados: 36 | |
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| Muñoz RuIz, Miguel Ángel. |
| Los métodos basados en la percepción remota son herramientas importantes para la medición de variables biofísicas del bosque a un costo menor y a una escala espacial y temporal mayor. En este trabajo se analiza la relación existente entre datos del Inventario Nacional Forestal y de Suelos (INFyS) y datos espectrales provenientes de imágenes de la plataforma SPOT correspondientes al bosque templado y bosque mesófilo de Hidalgo, México. Las estimaciones del área basal (AB), volumen (VOL) y cobertura arbórea (COB) se realizaron mediante cuatro enfoques: 1) Análisis de regresión lineal múltiple, 2) El procedimiento no paramétrico K vecino más cercano (K-nn), 3) Estimadores de razón y regresión, y 4) Inventario forestal tradicional. Las estimaciones totales... |
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Palavras-chave: Percepción remota; Inventario forestal; Area basal; Volumen; Cobertura arbórea; Remote sensing; Forest inventory; Basal area; Volume; Tree cover; Forestal; Maestría. |
| Ano: 2012 |
URL: http://hdl.handle.net/10521/1710 |
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| Ortíz Reyes, Alma Delia. |
| La técnica más común para estimar variables dasométricas a escalas grandes o pequeñas son los inventarios forestales que se basan en un muestreo en campo. En la actualidad la teledetección ofrece un abanico de posibilidades para contrubuir a esa tarea, tal es el caso de los datos LiDAR (Light Detection And Ranging) que permiten obtener una nube de puntos georreferenciados que dibuja tridimensionalmente el bosque. En este trabajo se estudió la relación entre datos derivados de LiDAR y datos medidos en campo para estimar variables dasométricas como: área basal (AB), biomasa total (BT), cobertura arbórea (COB) y volumen (VOL), mediante cuatro métodos: 1) regresión lineal múltiple, 2) regresión no lineal, 3) estimadores de razón y regresión e 4) inventario... |
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Palavras-chave: Inventario forestal; LiDAR; FUSION; Biomasa total; Volumen; Forest inventory; Total biomass; Volume; Forestal; Maestría. |
| Ano: 2014 |
URL: http://hdl.handle.net/10521/2272 |
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| Corrêa,Paulo C.; Resende,Osvaldo; Garin,Silvia A.; Jaren,Carmen; Oliveira,Gabriel H. H. de. |
| The present study aimed to determine the volumetric shrinkage rate of bean (Phaseolus vulgaris L.) seeds during air-drying under different conditions of air, temperature and relative humidity, and to adjust several mathematical models to the empiric values observed, and select the one that best represents the phenomenon. Six mathematical models were adjusted to the experimental values to represent the phenomenon. It was determined the degree of adjustment of each model from the value of the coefficient of determination, the behavior of the distribution of the residuals, and the magnitude of the average relative and estimated errors. The rate of volumetric shrinkage that occurred in bean seeds during drying is between 25 and 37%. It basically depends on the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phaseolus vulgaris L.; Moisture content; Volume; Air-drying; Physical property. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162011000400010 |
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| Stolf,Rubismar; Piedade,Sonia M. de S; Silva,Jair R. da; Silva,Luiz C. F. da; Maniero,Miguel Â. |
| The transposition of the São Francisco River is considered one of the greatest engineering works in Brazil of all time since it will cross an extensive agricultural region of continental dimensions, involving environmental impacts, water, soil, irrigation, water payment and other multidisciplinary themes. Taking into account its importance, this subject was incorporated into a discipline of UFSCar (Federal University of São Carlos - Brazil) named "Pollution and Environmental Impacts". It was noted strong reaction against the project, even before the presentation. To allow a critical analysis, the first objective was to compile the main technical data and environmental impacts. The second objective was to detect the three most important aspects that cause... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Integration; Water transfer; Volume; Technical data; Northeast; Semiarid. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000600001 |
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| RONCATTO, G.; ROMANO, M. R.; CARAVINA, S. M.; OLIBONE, D.; GIRARDI, E. A.; SOARES FILHO, W. dos S.; BOTELHO, S. de C. C.; WRUCK, D. S. M.. |
| Resumo: O objetivo do trabalho foi avaliar variáveis de crescimento vegetativo de limeira ácida ?Tahiti CNPMF 02? enxertada em porta-enxertos em Sorriso, MT e Guarantã do Norte, MT. Os porta-enxertos foram: citrandarin ?Indio? [C. sunki (Hayata) hort ex Tanaka x Poncirus trifoliata (L.) Raf. ?English?] (CTRI) e ?San Diego? (C. sunki x P. trifoliata ?Swingle?) (CTRSD), citrumelo ?Swingle? (C. paradisi Macfad. x P. trifoliata) (CTSW), limoeiro ?Cravo?, clones ?Santa Cruz? e ?CNPMF-003?, tangerineira ?Sunki Tropical? (C. sunki) e os híbridos HTR - 069, TSKC x (LCR x TR) - 059, LVK x LCR - 038, TSKC x CTSW ? 028, LRF x (LCR x TR) - 005, TSKC x TRFD 003 e 006. Aos 3,5 anos até os 4,5 anos de idade foram avaliadas as seguintes características: altura de planta,... |
| Tipo: Folhetos |
Palavras-chave: Limeira ácida; Volume da copa; Diâmetro do caule; Selo ODS 2; Selo ODS 12; Gomose; Porta Enxerto; Planta Porta-Enxerto; Doença de Planta; Fruta Cítrica; Volume; Estrutura Vegetal; Caule; Estatura de Planta; Tahiti; Citrus; Gummosis; Canopy. |
| Ano: 2022 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1149393 |
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| Buchet, Vincent; Coquard, Elodie; Severe, Armelle; Barone, Herve. |
| Sea bass, Dicentrarchus labrax (mean weight: 748 +/- 13 g), were maintained before and during vitellogenesis in 1, 3, 8, 16 and 32 m(3) tanks, and then they were transferred to 2 m(3) tanks, for the spawning season. During the first 2 months of the experiment, the growth rates were significantly lower in smaller tanks (1 m(3)). In August, the oocyte diameters were significantly lower in smaller tanks (1, 3 and 8 m(3)) than in larger (16-32 m(3)) tanks. At the end of the experiment, the fish mean weight in the 1 m(3) tanks was significantly lower than in the 3 m(3) tanks, but oocyte diameters and plasma oestradiol concentrations were not significantly different between the volumes. This shows a longer acclimation requirement in smaller volume rearing.... |
| Tipo: Text |
Palavras-chave: Volume; Aquaculture; Vitellogenesis; Reproduction; Sea bass. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/publication-4068.pdf |
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| Kosif,Rengin; Sahin,Bünyamin; Gürel,Safiye. |
| Cerebellum regulates motor control and physical coordination. It is known that when eye and hand need to be worked in combination, cerebellum is active and it provides coordination between eye and hand. Cerebellar cortex atrophy appears with dismetry and saccadic eye movement. If there is no stimulant related to vision, how cerebellum is adopted under this circumstance? In order to explore this, 27 male and 16 female volunteers with bilateral congenital blindness were compared with 35 male and 33 female healthy volunteers in this study. MR images of cross-sectional sequential cerebellum of volunteers with 1.5 mm thickness were realized in coronal plane. The surface area of apparent cerebellum seen in cross-sections was calculated by using Onis (Ver. 2.1)... |
| Tipo: Journal article |
Palavras-chave: Bilateral congenital blindness; Cerebellum; Volume. |
| Ano: 2013 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000100039 |
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| Akosman,Murat Sirri; Lenger,Ömer Faruk; Demirel,Hasan Hüseyin. |
| The testicular measurement is important criteria for experimental researches especially in toxicological studies and the prediction of spermatogenesis. In light of this knowledge, we aimed to estimate and compare these parameters in two different kinds of cattle breeds. The gross anatomical measurements were performed by vernier caliper, volume of the testis was estimated by Cavalieri method and seminiferous tubule diameter was measured on the histological sections by software-loaded computer attached to microscope. The mean testis weight, length, width, volume, and tubule diameter of the Simmental bulls and the Holstein bulls measured as 316 g, 12.1 cm, 6.9 cm, 295 cm3 and 226.68 µm and 299 g, 12.1 cm, 6.8 cm, 285 cm3 and 223.44 µm, respectively. In... |
| Tipo: Journal article |
Palavras-chave: Bull; Cavalieri method; Seminiferous tubule; Testis; Volume. |
| Ano: 2013 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000300048 |
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| Ferrari, Marcio Pinheiro; Ferreira, Carlos Alberto; Silva, Helton Damin da; Trevisan, Roberto. |
| This paper deals with the prognosis of the individual volumetric growth of Eucalyptus species in the Brazilian South Region. It was accomplished in a fertilizer trial with Eucalyptus dunnii and a competition trial among species (E. bicostata, E. “cambiju” - natural hybrid, E. deanei and E. viminalis) implanted in Vila Velha, PR. The method of successive regressions, modified to the exponential form, including the volume at three years of age and survival was applied. The results gave evidence of acceptable efficiency of the method to estimate individual volumetric growth of the trees of the stands, especially for E. deanei and E. dunnii, species well adapted to the region. However, species with low growth potential, for example E. bicostata, presented low... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Eucalyptus; Individual growth; Volume; Projection; Survival Eucalipto; Prognose; Volume individual; Sobrevivência. |
| Ano: 2011 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/223 |
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| Pelissari, Allan Libanio; Lanssanova, Luciano Rodrigo; Drescher, Ronaldo. |
| This study aimed to adjust volumetric models to tropical pines, in pure stand, in the municipality of Vilhena, Rondonia State. The data came from 20 felled trees of Pinus caribaea var. hondurensis and 10 Pinus tecunumanii trees with discs collected at fixed positions of 0.20 m, 0.70 m, 1.30 m and in distances of one meter along the stem, for later counting and measurement of the growth rings at ages from 4 to 12 years. Eight volumetric models were adjusted. The selection criteria used were: standard error of estimate, adjusted coefficient of determination, F test, significance of regression coefficients, mean deviation, standard deviation of the differences, sum of square of the relative residual, percentage of the residuals and graphic analysis of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Volume; Volumetric equations; Stem analysis Volume; Equações volumétricas; Análise de tronco. |
| Ano: 2011 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/270 |
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| Chaim,Aldemir; Pessoa,Maria Conceição Peres Young; Camargo Neto,João; Hermes,Luiz Carlos. |
| The main objective of this work was to compare two methods to estimate the deposition of pesticide applied by aerial spraying. Hundred and fifty pieces of water sensitive paper were distributed over an area of 50 m length by 75 m width for sampling droplets sprayed by an aircraft calibrated to apply a spray volume of 32 L/ha. The samples were analysed by visual microscopic method using NG 2 Porton graticule and by an image analyser computer program. The results reached by visual microscopic method were the following: volume median diameter, 398±62 mum; number median diameter, 159±22 mum; droplet density, 22.5±7.0 droplets/cm² and estimated deposited volume, 22.2±9.4 L/ha. The respective ones reached with the computer program were: 402±58 mum, 161±32 mum,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agricultural chemicals; Aerial application; Application methods; Density; Volume. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2002000400010 |
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| Batista,L.F.A.; Imai,N.N.; Rotta,L.H.S.; Watanabe,F.S.Y.; Velini,E.D. |
| O objetivo deste trabalho foi avaliar o desenvolvimento da vegetação submersa, em termos da altura dos dosséis, considerando as dimensões espaço e tempo, usando técnicas de hidroacústica. Foram realizados dez levantamentos de campo no período de outubro de 2009 a dezembro de 2010, para aquisição de pontos georreferenciados de altura dos dosséis, frequência de ocorrência de vegetação, bem como de profundidade. Medidas limnológicas também foram feitas, a fim de verificar se suas variações poderiam explicar a distribuição espacial das macrófitas. Os dados de vegetação foram analisados por levantamento e por profundidade; além disso, compuseram um banco de dados implementado em um Sistema de Informação Geográfica. Foram então interpolados e das superfícies... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mapeamento; Crescimento; Volume; Sistema de informação geográfica. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582012000200002 |
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| Registros recuperados: 36 | |
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