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Análisis digital de imágenes como herramienta en el estudio de cambio color de frutos en postcosecha. Colegio de Postgraduados
Loera Alvarado, Gerardo.
Se desarrollaron dos técnicas basadas en procesamiento de imágenes digitales; una para generar un modelo geométrico tridimensional en CAD y otra para generar una proyección geométrica en tres especies frutales (mango, naranja y pera). Se tomaron cuatro imágenes; una de la cara más ancha (0°) y el resto cada 90°. Los modelos se generaron dividiendo cada imagen en 8, 16 y 32 divisiones. La proyección geométrica se generó con la corrección de curvatura vertical y horizontal mediante el cálculo de la longitud del arco cada uno o dos pixeles. Se evalúo el efecto del tamaño de las imágenes al 50%, 100% y 200%. Se retiró la cubierta de los fruto y digitalizó, posteriormente se calculó el área externa. Se midió el volumen por desplazamiento de agua y en el modelo...
Palavras-chave: Área; Volumen; Imágenes digitales; CAD; Solevación; Elipse; Elipsoidal; Modelo geométrico; Proyección geométrica; Area; Volume; Digital image; Lofting; Ellipse; Ellipsoidal; Geometric model; Geometric projection; Fruticultura; Maestría.
Ano: 2014 URL: http://hdl.handle.net/10521/2308
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Design and development of the architecture of an agricultural mobile robot REA
Tabile,Rubens A; Godoy,Eduardo P; Pereira,Robson R. D; Tangerino,Giovana T; Porto,Arthur J. V; Inamasu,Ricardo Y.
Parameters such as tolerance, scale and agility utilized in data sampling for using in Precision Agriculture required an expressive number of researches and development of techniques and instruments for automation. It is highlighted the employment of methodologies in remote sensing used in coupled to a Geographic Information System (GIS), adapted or developed for agricultural use. Aiming this, the application of Agricultural Mobile Robots is a strong tendency, mainly in the European Union, the USA and Japan. In Brazil, researches are necessary for the development of robotics platforms, serving as a basis for semi-autonomous and autonomous navigation systems. The aim of this work is to describe the project of an experimental platform for data acquisition in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Precision agricultural; CAD; CAE; ISOBUS; Robotic; Sensor.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162011000100013
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Association of homocysteine and methylene tetrahydrofolate reductase (MTHFR C677T) gene polymorphism with coronary artery disease (CAD) in the population of North India Genet. Mol. Biol.
Tripathi,Rajneesh; Tewari,Satyendra; Singh,Prabhat Kumar; Agarwal,Sarita.
The implications of the methylene tetrahydrofolate reductase (MTHFR) gene and the level of homocysteine in the pathogenesis of coronary artery disease (CAD) have been extensively studied in various ethnic groups. Our aim was to discover the association of MTHFR (C677T) polymorphism and homocysteine level with CAD in north Indian subjects. The study group consisted of 329 angiographically proven CAD patients, and 331 age and sex matched healthy individuals as controls. MTHFR (C677T) gene polymorphism was detected based on the polymerase chain reaction and restriction digestion with HinfI. Total homocysteine plasma concentration was measured using immunoassay. T allele frequency was found to be significantly higher in patients than in the control group. We...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Angiography; CAD; Homocysteine; MTHFR polymorphism.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000200004
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Association of long non-coding RNA MIAT and MALAT1 expression profiles in peripheral blood of coronary artery disease patients with previous cardiac events Genet. Mol. Biol.
Toraih,Eman A.; El-Wazir,Aya; Alghamdi,Saleh A.; Alhazmi,Ayman S; El-Wazir,Mohammad; Abdel-Daim,Mohamed M.; Fawzy,Manal S..
Abstract Long non-coding RNAs (lncRNAs) are implicated in various cellular and pathological processes. Two lncRNAs, myocardial infarction-associated transcript (MIAT) and metastasis-associated lung adenocarcinoma transcript 1 (MALAT1), may be involved in the pathogenesis of coronary artery disease (CAD). Here, we aimed to determine the relative circulating levels of MIAT and MALAT1 in 110 stable CAD patients and 117 controls and to correlate their levels with the clinical and laboratory data. Peripheral blood expression levels were quantified by Real-Time qPCR. The median MIAT expression level in CAD patients was significantly 12-fold higher than controls (p<0.001). Otherwise, the median MALAT1 expression level was comparable in patient and control...
Tipo: Info:eu-repo/semantics/article Palavras-chave: CAD; LncRNA; MALAT1; MIAT; Real-time qPCR.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572019000400509
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3Dプリンターを活用したイノベーションの創出 OAK
佐藤, 禎稔.
Palavras-chave: 3Dプリンター; CAD; CAM; もの造り.
Ano: 2011 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2897
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Limites na utilização de um modelo de balanço hídrico decendial em função da capacidade de água disponível no solo - DOI: 10.4025/actasciagron.v30i2.1721 Agronomy
Souza Filho, Jorge Luiz Moretti de; UFPR; Gomes, Siguifrid; UFPR.
O presente trabalho consistiu na avaliação dos limites de utilização de um modelo de simulação do balanço hídrico climatológico decendial irrigacionista, em quatro regiões distintas no Estado do Paraná. Nas análises, 68 cenários de simulação do balanço hídrico foram testados para permitir o relacionamento entre a evapotranspiração da cultura (ETc), chuva provável a 75%, diferentes capacidades de água disponível no solo (CAD) e deficiência hídrica anual (DEF). As análises realizadas mostraram que: o modelo consegue obter melhores estimativas de seus componentes para maiores valores de água disponível (AD) no solo; o valor ideal de CAD para processar as análises de irrigação em função das variações da ETo, Kc e ETc deve de preferência ser estabelecida no...
Palavras-chave: 5.00.00.00-4 Ciências Agrárias simulação; CAD; Água disponível; Irrigação; Agricultura irrigada 5.00.00.00-4 Ciências Agrárias simulation; AWC; Available water; Irrigation; Agricultural irrigation.
Ano: 2008 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1721
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Computer-aided engineering (CAE) approach to design a cultivator for small farm holdings in the West Bengal state of India CIGR Journal
Mandal, Dipankar.
Small and marginal farms are one of the big challenges for farm mechanization in the West Bengal state of India. Since the majority of farms are marginal with land holding less than one hectare, use of high capacity equipment is not feasible. The major constraints in the promotion of farm mechanization include the fragmented land holding, low investment capacity of the farmers, the requirement of equipment for each agro-climatic zone of West Bengal, inadequate repairs and maintenance facilities etc. So, small agricultural machinery is gaining importance for research. The cultivator is a secondary tillage tool mostly used in Indian farms. A 5-tyne cultivator may be suitable for small farm lands. So, in this present work, a 5-tyne cultivator was designed...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural engineering; Farm machiney; Computer aided design cultivator; Marginal farm; CAE; CAD; Agriculture; Farm mechanization.
Ano: 2017 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4162
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