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Abiotic factors influencing tropical dry forests regeneration BABT
Ceccon,Eliane; Huante,Pilar; Rincón,Emanuel.
Tropical dry forests represent nearly half the tropical forests in the world and are the ecosystems registering the greatest deterioration from the anthropogenic exploitation of the land. This paper presents a review on the dynamics of tropical dry forests regeneration and the main abiotic factors influencing this regeneration, such as seasonal nature, soil fertility and humidity, and natural and anthropic disturbances. The main purpose is to clearly understand an important part of TDF succession dynamics.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Tropical dry forests; Regeneration; Disturbances; Seasonal variability; Fertility; Moisture.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000300016
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Assessment of physical and physicochemical quality of main chocolates traded in Peru Acta Agron. (Palmira)
Chire-Fajardo,Gabriela Cristina; Valdivia-Arrunategui,Rocío Alicia; Orihuela-Rivera,Carmen Adela; Ureña- Peralta,Milber Oswaldo.
Abstract: The quality of the main chocolates marketed in Peru was determined. The physical aspect: color (C *, H *, IB), hardness and particle size, as well as physicochemical: water activity (aw), moisture, fat and ash, correlating with the declaration of ingredients presented in the packaging. We evaluated 30 experimental units of chocolates (imported, domestic, dark chocolate and milk) by experimental methods, randomly acquired from different establishments. The difference between color and hardness by origin was attributed to the dairy component. Dark chocolate had lower values of color components (8.75 ± 0.94 C *, 7.60 ± 4.71 H * and 28.46 ± 0.86 IB) than milk constituents (15.04 ± 2.78 C, 34.59 ± 7.46 H * and 34.55 ± 2.87 IB) and in hardness values...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ash; Color; Fat; Moisture; Particle size; Texture; Water activity.
Ano: 2017 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122017000200164
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Avaliação de características recalcitrantes de sementes de castanha-do-brasil. Infoteca-e
FIGUEIRÊDO, F. J. C.; CARVALHO, J. E. U. de.
bitstream/item/32757/1/CPATU-BP154.pdf
Tipo: Séries anteriores (INFOTECA-E) Palavras-chave: Castanha-do-brasil; Caracteristica recalcitrante; Velocidade de emergencia; Camara seca e fria; Camara seca e quente; Camara umida e fria; Brasil nut; Recalcitrant; Characteristics; Seed; Moisture; Vigour; Speed of emergence; Dry and cold chamber; Dry and hot chamber; Humid and cold chamber.; Bertholletia Excelsa; Emergência; Semente; Umidade.; Vigor..
Ano: 1994 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/379044
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Brooding in a temperate zone land snail: seasonal and regional patterns Naturalis
Sulikowska-Drozd, A.; Maltz, T.K.; Kappes, H..
The goal of this study is to assess if the reproductive strategy of a brooding land snail shifts along a climatic gradient. We focused on the following traits: timing and length of the reproductive season, brood size, ontogenetic dynamics of embryos, and reproductive mode (viviparity versus egg-laying). We dissected the central European door snail Alinda biplicata, collected monthly from eight populations covering the oceaniccontinental climatic gradient within the species’ distribution range. Forty percent of the 1706 dissected individuals were brooding. The species displayed a spring-summer reproductive activity pattern: intrauterine brooding was recorded between March and September; first embryos of a developmental stage that equals that of live-born...
Tipo: Article / Letter to the editor Palavras-chave: Clausiliidae; Gastropoda; Life cycle; Moisture; Mollusca; Vivaparity; 42.73.
Ano: 2013 URL: http://www.repository.naturalis.nl/record/447983
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Calibração da técnica de Time Domain Reflectometry (TRD) para avaliação da umidade do solo, em um Latossolo Amarelo, textura muito argilosa, com diferentes valores de densidade aparente do solo - avaliação no campo. Infoteca-e
TEIXEIRA, W. G.; FACCIN, O. P.; AZEVEDO, C. P. de; HUWE, B.; SCHROTH, G..
Avaliação de umidade volumetrica do solo pela técnica de time Domain Reflectometry (TDR) para Latossolo Amarelo (Xanthic ferralsol - FAO) textura muito argilosa, com diferentes valores de p. Foram determinados os coeficientes de determinacao ajustada (R2) e o erro padrao da media. Realizou-se um ajuste por regressao multipla para P e E, selecionando-se as variaveis que contribuiam significativamente para o modelo por procedimentos de selecao stepwise. Como a variacao dos valores de p esta diretamente relacionada ao uso do solo (especie presente e o manejo praticado), foram observadas importantes diferencas entre as P das areas cultivadas e as da floresta primaria. Os valores reduzidos de P proxima as plantas de pupunha (Bactris gasipaes H.B.K.) em relacao...
Tipo: Capítulo em livro técnico (INFOTECA-E) Palavras-chave: Propriedade fisica; Fluxo; Brasil; Amazonas; Tropical rain forest; Moisture; Fluxes; Água; Bactris Gasipaes; Cupuaçu; Floresta Tropical Úmida; Kudzu; Pueraria Phaseoloides; Pupunha; Solo; Theobroma Grandiflorum; Umidade; Uso da Terra; Density; Land use; Physical properties; Soil; Water.
Ano: 1997 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/667398
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Characterization of residual stresses in wound composite tubes ArchiMer
Casari, Pascal; Jacquemin, Frederic; Davies, Peter.
This paper presents a method for the characterization of residual stresses in thick filament wound tubes. The three materials considered in the study are wet wound epoxy composite tubes based on E glass, R glass and T700 carbon fibres with three winding angles, [+/- 35], [+/- 55] and [+/- 851 with respect to the longitudinal axis. The aim of the present work is to measure internal stresses, based on strains liberated by cutting composite tubes, and to compare results with predictions from a residual stress model based on the classical equations of solid mechanics. This leads to a simple technique which allows the quick identification of the effects of manufacturing and moisture on the internal multi-axial stress level.
Tipo: Text Palavras-chave: Moisture; Tube; Composite; Residual stress.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-1212.pdf
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Convective dehydration kinetics of noodles prepared from taro (Colocasia esculenta), rice (Oryza sativa) and pigeonpea (Cajanus cajan) flours CIGR Journal
Kaushal, Pragati; Sharma, Harish Kumar.
Drying characteristics of noodles prepared from 50% taro and remaining equal proportions of rice and pigeonpea flours were investigated in a convective type dryer for a temperature range of 50°C to 80°C at a constant air velocity of     1.5 m s-1.  Results indicated that drying took place in falling rate period.  The sample dried at 50°C was found better in color as compared to samples at 60°C, 70°C and 80°C.  The rehydration weight of noodles decreased with the increase in drying temperature.  Moisture transfer from noodles was described by applying Fick’s diffusion model and the effective moisture diffusivity was calculated.  Effective moisture diffusivity increased with increase in temperature.  An Arrhenius relation with activation energy of 38.53 kJ...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Noodle; Taro; Dehydration kinetics; Temperature; Moisture.
Ano: 2013 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2132
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Cross-scale determinants of palm species distribution Acta Amazonica
Salm,Rodolfo; Salles,Nilson Vicente de; Alonso,Wladimir J.; Schuck-Paim,Cynthia.
We investigate palm species distribution, richness and abundance along the Mokoti, a seasonally-dry river of southeastern Amazon and compare it to the patterns observed at a large scale, comprising the entire Brazilian territory. A total of 694 palms belonging to 10 species were sampled at the Mokoti River basin. Although the species showed diverse distribution patterns, we found that local palm abundance, richness and tree basal area were significantly higher from the hills to the bottomlands of the study region, revealing a positive association of these measures with moisture. The analyses at the larger spatial scale also showed a strong influence of vapor pressure (a measure of moisture content of the air, in turn modulated by temperature) and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazon; Diversity; Moisture; Palms; Tropical forests.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672007000100002
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Dégradation de matériaux composites dans un environment marin: Nouveaux materiaux et methodes d'essais ArchiMer
Pomies, F; Carlsson, L; Choqueuse, Dominique; Davies, Peter.
The change in composite material properties when these are exposed to a marine environment is of considerable importance to both designers and users of these materials. In this paper new materials are first studied, composites composed of a glass fibre reinforced thermoplastic PPS matrix. It is shown that their poor interfacial resistance to moisture ingress compromises severely the advantage of using a matrix which does not absorb moisture. In the second part of the paper the application of two non-destructive test techniques for following damage development, based on ultrasonic wave propagation and vibration (modal) analysis, are described. These are complemented by first results from a study using fracture mechanics tests to characterise delamination...
Tipo: Text Palavras-chave: Fractures; Vibration; Epoxy resins; Tests; Materials testing; Mechanical properties; Ultrasonics; Moisture; Ship technology; Composite materials; Mécanique de la rupture; Vibration; Ultrasonique; Thermoplastique; Epoxyde; Humidité.
Ano: 1992 URL: http://archimer.ifremer.fr/doc/1992/acte-1064.pdf
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Design, fabrication and evaluation of horizontal rotary separator of olive oil (Three-Phase Decanter) CIGR Journal
Rashvand, Mahdi; Akbarnia, Abbas.
Olive is one of the strategic products in Iran, and due to the significant cultivation area of this product, oil companies should be equipped with suitable processing equipment. Unfortunately, despite the high capacity of olive in Iran, oil companies are equipped with imported machines. In this study, the construction and evaluation of the Three-counter device of Iran has been developed. The machine has three oil, water and olive pulp outputs. In order to evaluate the machine, the amount of moisture content and fat extracted from the machine was checked at 2500 and 3500 rpm and 30 and 45% water content. Also, four different samples Manzallina, Fishemi, Kalamata and Oily were used in this experiment. The main components of the machine include an electric...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Olive; Oil; Water; Pulp; Moisture; Fat.
Ano: 2019 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5344
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Determination of Moisture Levels, Protein and Water Absorption of Chicken Giblets Rev. Bras. Ciênc. Avic.
Scaratti,D; Geremias,R; Franchin,PR; Scaratti,G.
Abstract This study aimed at evaluating the levels of moisture, protein, water to protein ratio, and water absorption during chilling of chicken giblets (heart, liver, and gizzard) to set legal limits of water absorption during this process. The survey was conducted in the southern Brazil, the largest broiler-producing region of this country. Giblets (heart, liver, and gizzard) were collected fresh from the processing line after evisceration and at the exit of the chiller after the immersion process from two processing plants. One of the plants (PP1) processes small chickens (1,100g live weight) and PP2 processes chickens with 2,800g live weight. In total, 448 samples were collected. Laboratory tests were performed in duplicate for each parameter measured....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chicken giblets; Chiller; Moisture; Protein; Water absorption.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000100193
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Determination of viscoelastic properties of dates (Mazafati Variety) CIGR Journal
kamgar, saadat; Zare, Dariush; Ebadi, Hossein; Ghofrani, Aliakbar.
The knowledge of rheological properties of agricultural fruits can be significantlyhelpful in design and fabrication of the appropriateprocessing machines .In this study, the viscoelastic characteristics of date (Mazafati variety) were investigated. Experimental tests were established in six moisture levels (7.5, 9.0, 10.8, 12.8, 17.59 and 25.5 on dry basis) and temperature of 45ºC which contributed to obtain a suitable model. To achieve the desired moisture levels, various saturated salts were used. A chamber capable of controlling temperature was fabricated and placed around the plunger of texture analyzer to monitor the temperature during the experiments. Tests were conducted using an Instron Universal Testing Machine in the way that, samples were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biosystem engineering; Food process Viscoelastic properties; Mazafati; Date; Creep test; Moisture.
Ano: 2017 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3812
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Dropping potatoes onto a hard surface floor increases their moisture content during storage OAK
HIRONAKA, Kazunori; ISHIBASHI, Ken-ichi; SATO, Hiroshi; IMURA, Tetsuya; TERAI, Hideki; KUMASE, Noboru; 弘中, 和憲; 石橋, 憲一; 佐藤, 博志; 井村, 哲也; 寺井, 英樹; 熊瀬, 登.
http://www.obihiro.ac.jp/~library/kenkyu.html
Palavras-chave: Potato tubers; Drop height; Moisture; Storage.
Ano: 1995 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3799
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Effect of static loading on quality of potatoes during storage OAK
HIRONAKA, Kazunori; ISHIBASHI, Ken-ichi; I-NOGAI, Seizi; KUNI-EDA, Masahiko; HASHIMOTO, Takahiro; KUMASE, Noboru; 弘中, 和憲; 石橋, 憲一; 猪飼, 征治; 国枝, 雅彦; 橋本, 隆博; 熊瀬, 登.
http://www.obihiro.ac.jp/~library/kenkyu.html
Palavras-chave: Potato tubers; Static loading; Moisture; Reducing sugar.
Ano: 1994 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3785
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Effects of inclusion of patauá, Oenocarpus bataua meal on elephant grass silage Acta Amazonica
QUEIROZ,Amanda Caroliny Marques de; SANTOS,Wânia Mendonça dos; MENDONÇA,Rita de Cássia Almeida de; SANTOS,Rosana Ingrid Ribeiro dos; SILVA,Thiago Carvalho da; DOMINGUES,Felipe Nogueira; RÊGO,Aníbal Coutinho do.
ABSTRACT Elephant grass silages have high moisture content, causing nutrient loss, mainly by effluent production. The use of moisture absorbent additives, such as patauá, Oenocarpus bataua meal, can be a strategy to reduce losses in these silages. The aim of this study was to determine the fermentation losses, microbiological composition, fermentative characteristics, and chemical composition of elephant grass silage with increasing levels of inclusion of patauá meal. The experiment was conducted in a completely randomized design, with four concentrations of patauá meal (7%, 14%, 21%, and 28%, based on fresh matter) and a control without patauá, and five replicates. The elephant grass was collected manually after 60 days of growth. After chopping, the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Additive; Effluent production; Moisture; Pennisetum purpureum.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000200101
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Endommagement mecanique de materiaux composites. Role sur les proprietes hygrothermiques ArchiMer
Perreux, D; Suri, C; Varchon, D; Oytana, C.
The mechanical behaviour of polymer based glass fibre composites depends on the damage level and the amount of moisture present. Two anelastic damage models, both adapted to the mechanical properties of epoxy and polyester matrix polymers, are proposed. A coupling effect between the kinetics of damage and moisture level is shown.
Tipo: Text Palavras-chave: Moisture; Damage; Modelling; Ship technology; Mechanical properties; Composite materials; Humidité; Endommagement; Modélisation; Comportement; Matériau composite.
Ano: 1992 URL: http://archimer.ifremer.fr/doc/1992/acte-1062.pdf
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Gray scale of radiographic images in the assessment of degree moisture in soybean seeds Acta Agron. (Palmira)
Trujillo,Heiber Andrés; Guilhien Gomes-Junior,Francisco; Rondinel-Mendoza,Natalie Verónika; Trujillo,Carlos Humberto.
Abstract The moisture degree is one of the most important factors in choosing procedures for obtaining high quality seeds. In most quality control programs, the degree of moisture is determined by laboratory tests, based on the maximum removal of water when the seed is subjected to the application of heat under controlled conditions. The radiographic image is characterized by the generation of images with different levels of gray after the interaction of X-rays with the seed tissues. The objective of this research was to determine the gray scale values of radiographic images of soybean (Glycine max (L.)) seeds with different levels of hydration, aiming to establish relationships with the conventional method of moisture determination. Radiographic images of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glycine max (L.); Digital images; X-rays; Seed quality; Water content; Moisture.
Ano: 2021 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122021000300304
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Impact of particle size, thermal processing, fat inclusion, and moisture addition on starch gelatinization of broiler feeds Rev. Bras. Ciênc. Avic.
Muramatsu,K; Maiorka,A; Dahlke,F; Lopes,AS; Pasche,M.
The present study evaluated the effect of feed particle size, thermal processing different levels of fat inclusion and of moisture addition on the amount of gelatinized starch in a corn-soybean broiler diet. The different processing factors were combined in a 2 x 4 x 4 x 2 factorial arrangement in a three randomized block design consisting of three production series: two particle sizes (coarse: 1041 microns and medium: 743 microns), four fat inclusion levels at the mixer (15, 25, 35, and 45 g/kg of feed), four moisture addition levels in the conditioner (0, 7, 14, and 21g/kg of feed), and two thermal processing treatments (conditioning-pelleting or conditioning-expanding-pelleting) which resulted in 64 different processed feeds. For the determination of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Conditioning; Expander; Gelatinization; Moisture; Starch; Fat.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000400005
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IN SITU MONITORING OF A CONTROLLED RELEASE OF FERTILIZERS IN LETTUCE CROP REA
Souza,Claudinei F.; Faez,Roselena; Bacalhau,Fabiana B.; Bacarin,Murilo F.; Pereira,Tamires S..
ABSTRACT: Agriculture has sought ways to increase food production to meet global demands, intensifying dependence on natural resources. An alternative for intensive production has relied on the use of “smart” fertilizers that release nutrients in a controlled manner. Biodegradable polymers containing fertilizers has presented economic and environmental advantages when applied to the soil, as they release water and nutrients gradually to the environment without leaving residues. The objective of this study was to monitor the behavior of chitosan-clay hybrid microspheres, used as potassium nitrate soil ferti-releaser in lettuce cultivation. The experiment consisted of two treatments: (i) application of ferti-releasing chitosan-clay microspheres and (ii) use...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ferti-releasing biopolymer; Clay; Moisture; Electrical conductivity.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000400656
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Indirect determination of moisture using biospeckle technique Rev. Ciênc. Agron.
Kurokawa e Silva,Gabriela; Aguiar,Rosa Helena; Oliveira,Rafael Augustus de; Fabbro,Inacio Maria Dal.
Abstract The classification and selection of agricultural products are very important to assure post-harvest quality processes. However, most of physical and chemical analyses are destructive. It means those products turn useless after these analyses. Moisture is one of the most important parameters to assure the storage quality and as well to facilitate product processing. This research offers an alternative method to determine that parameter through an indirect and non-destructive way, using the image analysis based on the Biospeckle phenomenon. This method consists in get a 10 seconds video of a laser focused on the object. This video is divided in frames, using a computational routine in Matlab and, then, the sequence of images is processed using the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biospeckle; Laser; Moisture; Moringa oleifera.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902020000100403
Registros recuperados: 33
Primeira ... 12 ... Última
 

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