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Registros recuperados: 105
Primeira ... 123456 ... Última
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State-of-the-Art Impacts of Smart Grid in the Power Systems Operation and Expansion Planning BABT
Oliveira,Gabriel Apoena de; Muthemba,Leonel João; Unsihuay-Vila,Clodomiro.
ABSTRACT In this article, a state-of-the-art review on the impacts of Smart Grid in the operation and planning of the expansion of the Electric Power System is presented. The concept of Smart Grid is increasingly integrated in conventional networks, and the impact that this new technology generates on operation and planning must be investigated. Thus, in this article a survey of the main scientific publications was made with the purpose of determining the impacts and methodologies most used in this analysis. Efforts to analyze impacts are large because of the high degree of uncertainty of this new technology added to the problem. After the bibliographic survey, it was concluded that Robust Optimization and Genetic Algorithms are methodologies that are...
Tipo: Info:eu-repo/semantics/article Palavras-chave: State-of-the-art; Methodology; Smart grid; Impact; Power systems expansion planning; Power systems operation planning.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132018000200210
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Techniques of radioautography for medical and biological research BJMBR
Nagata,T..
Standard techniques for radioautography used in biological and medical research can be classified into three categories, i.e., macroscopic radioautography, light microscopic radioautography and electron microscopic radioautography. The routine techniques used in these three procedures are described. With regard to macroscopic radioautography, whole body radioautography is a standard technique which employs freezing and cryosectioning and can demonstrate organ distributions of both soluble and insoluble compounds. In contrast, in light and electron microscopic radioautography, soluble and insoluble techniques are separated. In order to demonstrate insoluble labeled compounds, conventional chemical fixations such as formalin for light microscopy or buffered...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Macroscopic radioautography; Light microscopic radioautography; Electron microscopic radioautography; Methodology.
Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998000200002
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The brain decade in debate: IV. Chronobiology BJMBR
Aguilar-Roblero,R.; Aréchiga,H.; Ashkenazi,I.; Burioka,N.; Cipolla-Neto,J.; Cornélissen,G.; Markus,R.; Marques,N.; Menezes,A.A.L.; Monk,T.H.; Ralph,M.; Valdez-Ramirez,P.; Menna-Barreto,L..
The present article is the adapted version of an electronic symposium organized by the Brazilian Society of Neuroscience and Behavior (SBNeC) which took place on June 14, 2000. The text is divided into three sections: I. The main issues, II. Chronodrugs, and III. Methods. The first section is dedicated to the perspectives of chronobiology for the next decade, with opinions about the trends of future research being emitted and discussed. The second section deals mostly with drugs acting or potentially acting on the organism's timing systems. In the third section there are considerations about relevant methodological issues concerning data analysis.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chronobiology; Biological rhythms; Biological clocks; Circadian and ultradian rhythms; Methodology.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000700001
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Integrated evaluation of soil quality after the incorporation of organic matter and microorganisms BJM
Valarini,Pedro J.; Alvarez,Mª Cruz Díaz; Gascó,José Mª; Guerrero,Francisca; Tokeshi,Hasime.
The soil quality was evaluated following the addition of organic matter and microorganisms to a clay loam soil collected in Aranjuez (Madrid) under controlled conditions of temperature and moisture, and over a period of three months. The following treatments were carried out: soil (control); soil + 50 t/ha of animal manure (E50); soil + 50 t/ha of animal manure + 30l/ha of effective microorganisms (E50EM); soil + 30 t/ha of combination of various green crop residues and weeds (RC30) and soil + 30 t/ha of combination of various green crop residues and weeds + 30l/ha of effective microorganisms (RC30EM). The soil samples were taken before and after the incubation and analysed using physical, chemical and microbiological parameters. A significant increase in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Methodology; Organic matter; Microorganisms; Physico-chemical; Microbiological soil properties.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822002000100007
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Fecal collection methods for the determination of protein digestibility in bullfrogs Ciência Rural
Stéfani,Marta Verardino De; Pereira,Marcelo Maia; Reche,Marcio Roberto; Mansano,Cleber Fernando Menegasso.
Adequate methods for the determination of protein digestibility in bullfrogs are important for the understanding of nutrient utilization. Therefore, this study evaluated two methods of feces collection: intestinal dissection and fecal decantation, using cylindric-conical tanks. Frogs were fed with a commercial diet (45% crude protein) which was ground and supplemented with 0.5% chromium oxide III. The frogs were fasted 48h before force-feeding (5% of the animal's live weight). For the decantation method, the animals were sacrificed 36 h after force-feeding and feces were collected directly from the large intestine. For the sedimentation method, feces were collected when they appeared in the tubes attached to the front end of the cylindric tanks. No...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Protein digestibility coefficient; Methodology; Nutrition; Frog farming.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000801492
Registros recuperados: 105
Primeira ... 123456 ... Última
 

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