Consulta: subjectFacets:"Parameters"
Registros recuperados: 19
Data/hora: 09/06/2024 17:20:12

Research of quality indices for cold-smoked salmon using a stepwise multiple regression of microbiological counts and physico-chemical parameters
Provedor de dados: 5
Autores: Leroi, Francoise; Joffraud, Jean-jacques; Chevalier, Frederique; Cardinal, Mireille.
Aims: The aim of the study was to assess the relationships between the remaining shelf-life (RSL) of cold-smoked salmon and various microbiological and physico-chemical parameters, using a multivariate data analysis in the form of stepwise forward multiple regression.  Methods and Results: Thirteen batches of French cold-smoked salmon were analysed weekly during vacuum-packed storage at 5 degreesC for their lipid, water, salt, phenol, pH, total volatile basic nitrogen (TVBN) and trimethylamine contents, total psychrotrophic count, lactic acid bacteria, lactobacilli, B. thermosphacta, Enterobacteriaceae and yeast counts. At the sensory rejection time, the flora was dominated by lactobacilli, lactobacilli/Enterobacteriaceae or Carnobacteria/B. thermosphacta....
Tipo: Text
Palavras-chave: Microbiological; Parameters; Regression; Cold smoked salmon.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/2001/publication-609.pdf

Occurence of harmful dinoflagellates in the punic harbors of Carthage (Gulf of Tunis) and their correlations with the physicochemical parameters
Provedor de dados: 20
Autores: Aissaoui, A.; Turki, S.; Ben Hassine, O. K.
Afin de fournir une meilleure idée sur la structure et la dynamique de la communauté des dinoflagellés et leurs relations avec les paramètres environnementaux dans les zones semi-fermées en communication avec le golfe de Tunis, une étude a été réalisée dans les ports puniques de Carthage afin d’estimer les densités et la dynamique des espèces de dinoflagellés ainsi que les variations des concentrations en nutriments, de janvier à juin 2006. Un nombre de 66 espèces de dinoflagellés ont été identifiés dont 14 espèces sont connues pour être nocives et responsables d’efflorescences nuisibles alors que 21 espèces sont connues pour être productrices de toxines. L'analyse statistique nous a permis de révéler des corrélations significatives entre les densités de...
Tipo: Journal Contribution
Palavras-chave: Parameters; Nutrients (mineral); Coastal environment; Plankton; Nutrients; Plankton.
Ano: 2012
URL: http://hdl.handle.net/1834/5318

Comportamiento del oxígeno disuelto en dos estaciones costeras La Libertad y Manta, como aporte al conocimiento del fenómeno "El Niño".
Provedor de dados: 20
Autores: Carrillo, P.
El análisis de parámetros químicos que permitan establecer tendencias de los mismos durante la ocurrencia de eventos climáticos es limitado; como aporte al conocimiento del comportamiento del oxígeno disuelto durante los eventos El Niño. Se comparan un total de 2282 datos de temperatura y concentraciones de oxígeno disuelto en la estación Fija La Libertad desde 1988 hasta el 2010 y 1464 datos de temperatura y concentraciones de oxígeno disuelto en Manta desde 1991 hasta el 2010. Se elaboraron gráficos de distribución en superficie y en la columna de agua, notándose que en las dos estaciones fijas costeras a nivel superficial las concentraciones del oxígeno disuelto son menores al presentarse eventos cálidos, y en especial durante los El Niño extremos como...
Tipo: Journal Contribution
Palavras-chave: Dissolved oxygen; El Nino phenomena; Parameters; Temperature data; Levels; Fixed stations.
Ano: 2012
URL: http://hdl.handle.net/1834/4655

Hydrological Characteristics of Cienfuegos’ Bay, Cuba, Related to the Presence  of the Invasive Green Mussel Perna viridis
Provedor de dados: 20
Autores: Garcés, Y.; Betanzos, A.; Lopeztegui, A.; Artiles, A.
The aim of this work was to analyze hydrological condition variations in Cienfuegos’ Bay in 2011 and its possible  influence in life cycle and distribution of the green mussel  Perna viridis. The hydrological parameters in the bay are described  according to the campaigns performed in February, May and November. Samples from two levels (surface and bottom) were taken, in  order to get water temperature, salinity and dissolved oxygen. The results show the climatic seasonality influence (dry and rain) both  in spatial as well as in vertical distribution of the observed parameters. The mean concentrations of the analyzed hydrological  markers were in agreement with the NC 25: 1999 requirements of good quality water  for fishing use. The observed hydrological...
Tipo: Journal Contribution
Palavras-chave: Marine aquaculture; Temperature; Parameters; Environmental conditions; Salinity effects.
Ano: 2012
URL: http://hdl.handle.net/1834/5349

Ceratium Schrank (Dinoflagellate, Peridiniales) de las Islas del Rosario, Caribe colombiano
Provedor de dados: 20
Autores: Carbonell, M.C.
Se señalan las especies del género Ceratixm Schrank (Dinoflagellatae, Peridiniales) de las Islas dei Rosario, Caribe colombiano, en relación con los parámetros físicos del agua para tres épocas climáticas y se encuentra que corresponden igualmente a tres  poblaciones diferentes, manteniéndole algunas especies comunes a todas ellas.  En total se reportan 29 especies, 12 de las cuales lo son por primera vez para el área del Caribe colombiano: Ceratium praelongum, C. kofoidii, C. incisum, C. longinisfrum, C. coatrarium, C. inclinatum, C. vultur, C. ranipes, C. reflexum, C. gibberum, C. limulus y C. schrankii. Especies consideradas oligofóticas como C. praelongum, C. ranipes, C. tenue, C. inclinatum, C. vultur y probablemente C. reflexum y C- lunula, que...
Tipo: Journal Contribution
Palavras-chave: Parameters.
Ano: 1982
URL: http://hdl.handle.net/1834/3962

Caracterización geomorfológica y sedimentológica de la Bahía de Jaramijó, en la provincia de Manabí
Provedor de dados: 20
Autores: Soledispa, B.
En este trabajo se presentan los resultados del reconocimiento geológico de la zona de playa, zona de dunas, de los acantilados, así como fotografías de las características geomorfológicas más sobresalientes de la Bahía de Jaramijó, observadas en el año 2008. Los acantilados son de mediana a baja altura, conformados por rocas sedimentarias, principalmente de la Formación Tablazo. Hay algunos sectores donde la erosión es más fuerte, producto del socavamiento que hace el oleaje en la base de los acantilados. También se presentan los resultados de las investigaciones realizadas sobre sedimentos superficiales de fondo, desde el punto de vista de la textura y de los parámetros estadísticos. Un total de 45 muestras de sedimentos del fondo marino de la zona...
Tipo: Journal Contribution
Palavras-chave: Geomorphology; Sedimentology; Sedimentary rocks; Parameters; Cliffs.
Ano: 2012
URL: http://hdl.handle.net/1834/4720

Componentes de variância de características de sementes de duas populações de imbuia (Ocotea porosa Nees et Martius ex. Nees, Lauraceae) de Santa Catarina
Provedor de dados: 190
Autores: Kalil Filho, Antonio Nascim; Hirano, Elcio; Nicolotti, Filipe.
A imbuia (Ocotea porosa Nees et Martius ex. Nees, Lauraceae) é uma espécie da Floresta Ombrófila Mista de valor econômico por possuir madeira de alta qualidade para mobiliário de luxo. Acha-se ameaçada de extinção e, por isto, a Embrapa Florestas vem desenvolvendo coletas para a instalação de um banco de conservação de germoplasma em outubro de 2004 em Santa Catarina. Apesar de sua importância, estudos relacionados aos componentes de variância de características das sementes de imbuia (Ocotea porosa) como subsídio à seleção fenotípica de sementes não se acham presentes na literatura. No presente trabalho foram realizadas mensurações do peso e do maior diâmetro de sementes de imbuia das populações de Canoinhas e Caçador, Estado de Santa Catarina para a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Seleção; Germoplasma; Ganhos; Parâmetros Selection; Germplasm; Gains; Parameters.
Ano: 2004
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1600

INDICADORES DE CONSUMO DE ENERGIA ELÉTRICA E PRODUÇÃO AGROPECUÁRIA DE AGRUPAMENTOS COM MUNICÍPIOS DO ESTADO DE SÃO PAULO
Provedor de dados: 31
Autores: Oliveira,   Paulo Andre De; Simon,   Elias Jose.
O PROBLEMA QUE SE ENCONTRA É DE QUE AS POLÍTICAS DE UTILIZAÇÃO DE ENERGIA ELÉTRICA NO MEIO RURAL SE LIMITAM À DISPONIBILIZAÇÃO DO INSUMO. ADOTAR DIRETRIZES QUE CONSIDEREM AS REGIÕES ADMISTRATIVAMENTE DIVIDIDAS PODE GERAR RESULTADOS INSATISFATÓRIOS, POIS PODEM EXISTIR, NUM MESMO EDR, MUNICÍPIOS CARENTES DE ENERGIA E OUTROS PLENAMENTE SATISFEITOS. MESMO NAQUELES ONDE A ENERGIA ESTEJA SATISFATORIAMENTE DISPONIBILIZADA OBSERVA-SE UMA SUBUTILIZAÇÃO DO INSUMO DEVIDO ÀS SUAS CARACTERÍSTICAS PRODUTIVAS. A HIPÓTESE COLOCADA É DE QUE NÃO HÁ INDICADORES OS QUAIS AUXILIEM NA IMPLEMENTAÇÃO DE POLÍTICAS PÚBLICAS E PRIVADAS QUE AS TORNEM EFICIENTES ATRAVÉS DAS DECISÕES TOMADAS PARA O INCREMENTO DA UTILIZAÇÃO DA ENERGIA ELÉTRICA. O OBJETIVO DESTE TRABALHO FOI APRESENTAR...
Tipo: Conference Paper or Presentation
Palavras-chave: Arâmetros; Energia produtiva; Suporte elétrico; Parameters; Productive energy; Electric support; Resource /Energy Economics and Policy.
Ano: 2008
URL: http://purl.umn.edu/108604

Effect of Egg Weight on External and Internal Qualities, Physiological and Hatching Success of Japanese Quail Eggs (Coturnix coturnix japonica)
Provedor de dados: 89
Autores: Hegab,IM; Hanafy,AM.
ABSTRACT This experiment was conducted to evaluate the effect of egg weight and egg physical characteristics on embryonic development, hatchability, and hatchling weight of Japanese quails (Coturnix coturnix japonica). In total, 689 eggs were classified in two categories: small (&lt;13.5 g) or large (≥13.5 g), and different external eggshell and internal quality traits were measured. On days 6 and 14 of incubation, tissue triiodothyronine (T3) and thyroxine (T4) were extracted from embryos in both egg sizes and analyzed. Relative to internal egg-quality traits, large eggs had significantly higher yolk height, yolk diameter, yolk weight, albumen height, and albumen weight than small eggs (p≤0.01). However, Haugh unit score (p=0.27) was not significantly...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Egg size; Egg quality; Hatchability; Hormones; Parameters.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000300300

Mathematical modeling of mechanical horizontal screw oil extractor
Provedor de dados: 111
Autores: BAKO, TANKO; ENYI, OBETTA SAMUEL; IMOLEMHE, UMOGBAI VICTOR.
A theory using mechanical expression was proposed from the physics of oil expression in a screw press to characterize a mathematical model. The general oil expression equation was solved for three machine parameters (choke clearances, screw shaft clearances and screw shaft speeds) which simulate the machine parameters effects in the overall screw expeller process. The mathematical model was validated by the experimental data obtained from pressing fish oil with a screw press, using regression analysis. The experimental oil extraction data was fitted to the model and the quality of fit evaluated. A good fit was indicated by correlation coefficient of 0.9983, coefficient of determination of 0.9967, absolute average percentage deviation of 4.8 %, coefficient...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mathematical; Model; Extraction; Parameters.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5521

CFD Model of Regenerative Heat Exchanger
Provedor de dados: 111
Autores: Kic, Pavel.
This paper is focused on the Computational fluid dynamics (CFD) modeling of regenerative heat exchanger suitable for animal houses. Buildings used for housing of animals in farms with intensive breeding, like poultry or pig houses, are characterized by high generation of heat inside, partly produced by animals, and in the case of small young animals, supplemented also by heating. On the other side these buildings need intensive ventilation which causes big losses of energy by exhausted air. A good way how to reduce heat losses can be the use of technical systems of heat recovery. There are two principal constructions of heat exchangers for heat recovery. There are either recuperative or regenerative heat exchangers. Industrially produced heat exchangers,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal houses; Ventilation; Energy; Parameters; Czech Republic.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3137

Environmental Impact Assessment of two polluting sources on stream in Nigeria
Provedor de dados: 111
Autores: Akinbile, Christopher Oluwakunmi; Olugbojo, Wasiu; Olubanjo, Obafemi.
The environmental impact of locating two polluting sources of landfill (refuse dump) and petrochemicals on Alaba stream in Akure, Nigeria was assessed. This was due to the dependence of Alaba inhabitants and its environment on the stream for variety of uses. Twenty physio-chemical parameters were analyzed for wet and dry seasons respectively with three sampling points within 5m intervals from one another of the two polluting sources on the stream. The parameters included: colour, odour, taste, pH, temperature, turbidity, alkalinity, conductivity, dissolved oxygen (DO), biochemical oxygen demand (BOD5) and total solids (TS). Others were chloride (CL-), total dissolved solids (TDS), total suspended solids (TSS), lead (Pb), nitrate (NO3), sulphate (SO4-2),...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Water quality; Treatment Pollution; Parameters; Petrochemical; Landfill; Surface water; Akure.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3215

Effect of Expeller Press Parameters on Fish Oil Extraction
Provedor de dados: 111
Autores: BAKO, TANKO; UMOGBAI, VICTOR I.; OBETTA, SAMUEL E.
An investigation was carried out on the effect of expeller press parameters such as choke clearances (1, 2 and 3 mm), screw clearances (1, 2 and 3 mm) and screw (worm) shaft speeds (50, 60 and 70 rpm) on fish oil extraction. The oil extraction rate and extraction efficiency had a negative relationship with choke clearances and screw clearances but had a positive relationship with screw (worm) shaft speeds. The oil extraction rate and extraction efficiency were found to decrease with increase in choke clearances and also decreased with increase in screw clearances. Increase in screw (worm) shaft speeds from 50 to 70 rpm was observed to increase oil extraction rate and extraction efficiency. The extraction loss had a positive relationship with choke...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish oil; Extraction; Expeller; Parameters; Optimize.
Ano: 2018
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4869

Effect of Oil Content of Sunflower Seeds on the Equilibrium Moisture Relationship and the Safe Storage Condition
Provedor de dados: 111
Autores: Maciel, Gisele; de la Torre, Diego; Bartosik, Ricardo; Izquierdo, Natalia; Cendoya, Gabriela.
The adsorption and desorption equilibrium moisture content/equilibrium relative humidity relationships of sunflower seeds with four different oil contents (35.7%, 44.6%, 48.6% and 52.7%) were obtained for temperatures of 8, 15, 25 and 35°C and moisture contents of 6.0%, 8.5%, 11.0%, 13.5%, 16.0% and 18.5%.The goodness of fit of four equilibrium moisture content/equilibrium relative humidity models (Modified Henderson, Modified Chung-Pfost, Modified Halsey and Modified Oswin) were evaluated for each oil content. The Modified Halsey model was the best for predicting equilibrium moisture content/equilibrium relative humidity relationships based on the Akaike Information Criterion, the Bayesian Information Criterion and estimated residual standard derivation....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agriculture; Grain postharvest; Storage Isotherms; Models; Parameters; Sunflower; Oil content; Safe storage moisture content.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3269

Environmental Impact Assessment of two polluting sources on stream in Nigeria
Provedor de dados: 111
Autores: Christopher Oluwakunmi Akinbile; FUTA; Wasiu Olugbojo; Federal University of Technology, Akure; Obafemi Olubanjo; Federal University of Technology, Akure.
The environmental impact of locating two polluting sources of landfill (refuse dump) and petrochemicals on Alaba stream in Akure, Nigeria was assessed. This was due to the dependence of Alaba inhabitants and its environment on the stream for variety of uses. Twenty physio-chemical parameters were analyzed for wet and dry seasons respectively with three sampling points within 5m intervals from one another of the two polluting sources on the stream. The parameters included: colour, odour, taste, pH, temperature, turbidity, alkalinity, conductivity, dissolved oxygen (DO), biochemical oxygen demand (BOD5) and total solids (TS). Others were chloride (CL-), total dissolved solids (TDS), total suspended solids (TSS), lead (Pb), nitrate (NO3), sulphate (SO4-2),...
Palavras-chave: Water quality; Treatment Pollution; Parameters; Petrochemical; Landfill; Surface water; Akure.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3215

CFD Model of Regenerative Heat Exchanger
Provedor de dados: 111
Autores: Pavel Kic.
This paper is focused on the Computational fluid dynamics (CFD) modeling of regenerative heat exchanger suitable for animal houses. Buildings used for housing of animals in farms with intensive breeding, like poultry or pig houses, are characterized by high generation of heat inside, partly produced by animals, and in the case of small young animals, supplemented also by heating. On the other side these buildings need intensive ventilation which causes big losses of energy by exhausted air. A good way how to reduce heat losses can be the use of technical systems of heat recovery. There are two principal constructions of heat exchangers for heat recovery. There are either recuperative or regenerative heat exchangers. Industrially produced heat exchangers,...
Palavras-chave: Animal houses; Ventilation; Energy; Parameters; Czech Republic.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3137

Alcohol Effects on the P2 component of Auditory Evoked Potentials
Provedor de dados: 42
Autores: HERNÁNDEZ,OSCAR H.; GARCÍA-MARTÍNEZ,ROLANDO; MONTEÓN,VÍCTOR.
This is a second part of a research aimed to study the effects of alcohol on the electrophysiological processes in student volunteers. The first part showed that alcohol slowed the Omitted Stimulus Potential (OSP). This work studied the ethanol effects on the parameters (i.e. rate of rise, amplitude and peak latency) of the P2 component of the evoked potentials (EPs) yielded by trains of auditory stimuli. It is hypothesized here that if P2 and OSP waves share some common neural processes then alcohol should also affect these specific parameters. A dose of 0.8 g/kg of alcohol or a placebo (0 g/kg) was administered to two groups of 15 young men who were tested before and again after treatment. The pre-post treatment change in each of the measurements was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alcohol; Auditory; Evoked potentials; Parameters.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000100437

Serum biochemistry of an, atlantic Yellow-Nosed Albatross Thalassarche chlororhynchos (Gmelin, 1789)
Provedor de dados: 45
Autores: Baldassin,P.; Gallo,H.; Barbosa,C.B.
Colheu-se uma amostra de sangue de um albatroz Thalassarche chlororhynchos (Gmelin, 1789), recolhido pela Polícia do Meio Ambiente de Ubatuba, SP, para análises da bioquímica do soro. O objetivo dessas análises foi o de apontar possíveis alterações dos parâmetros bioquímicos, visando facilitar futuras casas para reabilitação de aves. Nenhuma anormalidade foi encontrada e o animal morreu após três dias da captura.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Albatross; Thalassarche chlororhynchos; Parameters; Serum; Rehabilitation.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352007000200045

Adaptability and phenotypic stability for productive and reproductive traits in Nelore cattle
Provedor de dados: 65
Autores: Silveira,Mauricio Vargas da; Souza,Julio Cesar de; Ferraz Filho,Paulo Bahiense; Silva,Luiz Otavio Campos da; Arruda,Rosana Moreira da Silva; Machado,Carlos Henrique Cavallari; Pereira,Mariana Alencar.
ABSTRACT:  The present study aimed to estimate adaptability and stability parameters for Nellore bulls in 3 different regions. The traits analyzed included the weight of the animals raised in pasture at 420 days of age (W420) and at the age at first calving (AFC). The information used in this study was related to the phenotypic mean of the females which were the offspring of the top ten classified bulls based in one region. We used the methods proposed by Finlay &amp; Wilkinson (1963) &amp; Eberhart and Russell (1966) in order to evaluate the parameters of adaptability and stability of these animals. The averages estimated by the method of least squares were 243.91±34.90 kg and 1182.54±57.82 days, respectively, for the traits W420 and AFC. Adaptability and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Genotype-environment interaction; Parameters; Weight; Progeny.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000300651