I X Diagram
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. Relationship between Coffee Leaf Analysis and Soil Chemical Analysis
ABSTRACT: Research focused on adequate nutrition of plants is essential in modern coffee production to increase yield and develop more efficient management strategies with greater environmental and economic sustainability. The objectives of this study were to establish critical and optimal levels of soil fertility properties for high yielding Arabica coffee
Rev. Bras. Ciênc. Solo. Publicado em: 07/06/2018
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2. Atomistic simulations of supercooled gallium / Simulações atomisticas do galio super-resfriado
Recently, the existence of a liquid-liquid transition in pure substances has been proposed as an explanation of anomalous behaviors such as the increase of response functions (isothermal compressibility, coefficient of thermal expansion, specific heat) with decreasing temperature displayed by some liquids. The existence of this type of transition has been de
Publicado em: 2009
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3. ProduÃÃo de heterojunÃÃes de polianilina/silÃcio e nanofibras de polianilina para aplicaÃÃes em dispositivos hÃbridos
In this work we develop the methodology for the synthesis and fabrication of Polyaniline (PANI) â Silicon (Si) heterojunctions, with great potential for technological applications as sensors in different areas such as optics, ionizing radiation and gas detection. Besides, we were able to implement the electrospinnin technique with the goal of producing poly
Publicado em: 2006
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4. Estudo das propriedades físico-químicas e de textura de chocolates / Physicochemical and textural properties study of chocolates
Theobroma cacao is the scientific name of the cocoa, suggested in the XVIII century by Linné. However, the history of the chocolate begins before Aztecs and Mayans Mesoamerican civilizations, and the new mentioned Olmecs, among other groups. The Olmecs, a culture existing some three millennia ago, were possibly the first ones to use the chocolate. In some f
Publicado em: 1997
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5. SELF-ASSEMBLY AND COMPLEX PHASE BEHAVIOUR IN THE AMMONIUM PENTADECAFLUOROOCTANOATE / WATER / AMMONIUM CHLORIDE SYSTEM.
The ammonium pentadecafluorooctanoate in heavy water system (APFO/\ pot.2\ H\ ind.2\ O) exhibits exceptional phase behaviour stemming from strong tendency of the surfactant to form disc-like micelles which are stable over a wide concentration and temperature intervals. An understanding of this phase behaviour requires exposing the factors which govern the st
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 199609
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6. Propriedades estruturais e magneticas de compostos TR2Fe17Nx
The samples of TR2Fe17 intermetallic compounds with intersticial nitrogen were analyzed by several experimental techniques. We used optical metallographic and ac thermomagnetic analyses, electron probe micro-analysis (EPMA), X-ray diffract on and Mossbauer effect for samples characterization. Diffusion of nitrogen was studied for several light rare-earth-iro
Publicado em: 1993
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7. MOLLIER DIAGRAMS CONSTRUCTION (I - X) FOR THE HUMID AIR / CONSTRUÇÃO DE DIAGRAMAS DE MOLLIER (I-X) PARA O AR ÚMIDO
O presente trabalho é o estudo de um aquecedor de água para fins domésticos que utiliza energia radiante oriunda do sol, captada por um coletor de forma hemisférica. Na primeira parte do trabalho é feita uma tentativa de avaliação da radiação solar direta e difusa, a partir dos dados de incidência global em superfícies horizontais. A segunda parte
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/12/1972
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8. Haptenic oligosaccharides in antigenic variants of mycobacterial C-mycosides antagonize lipid receptor activity for mycobacteriophage D4 by masking a methylated rhamnose.
The simple apolar C-mycosides, i.e., structurally well-defined hydrophobic glycopeptidolipids of several Mycobacterium species (see diagram below), were earlier shown to behave as receptors for adsorption of mycobacteriophage D4. This phage is usually virulent for Mycobacterium smegmatis. More complex, polar C-mycosides with additional carbohydrate substitue
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9. Fluence-Response Curves and Action Spectra for the Very Low Fluence and the Low Fluence Response for the Induction of Kalanchoë Seed Germination 1
Germination of Kalanchoë blossfeldiana Poelln. seeds is absolutely light-requiring. Germination of one seed is the result of one out of three reactions, viz. the very low fluence response (VLFR), the low fluence response (LFR) and the high fluence response/high irradiance response. In order to demonstrate the involvement of phytochrome for both photorespons
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10. Preparation and Solid-State Characterization of Inclusion Complexes Formed Between Miconazole and Methyl-β-Cyclodextrin
The aim of this study is to confirm the formation of inclusion complexes between miconazole (MCZ) and two derivatives of beta-cyclodextrin, methyl-beta-cyclodextrin (MβCD) and 2-hydroxypropyl-beta-cyclodextrin (HPβCD) in aqueous solution by phase solubility studies. Inclusion complexes with MβCD in the solid state were then prepared by different methods,
Springer US.
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11. Bond orientational order, molecular motion, and free energy of high-density DNA mesophases.
By equilibrating condensed DNA arrays against reservoirs of known osmotic stress and examining them with several structural probes, it has been possible to achieve a detailed thermodynamic and structural characterization of the change between two distinct regions on the liquid-crystalline phase diagram: (i) a higher density hexagonally packed region with lon