Small Thermal Units
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. Novel and Fast Microwave-Assisted Synthesis of Carbon Quantum Dots from Raw Cashew Gum
Carbon quantum dots (C-dots) with average size of 9 nm were synthesized from an aqueous solution of raw cashew gum (RCG) using a novel and fast microwave-assisted technique which involves two steps. In the first step (partial depolymerization in solution) some monomer units are formed through the autohydrolysis of CG and a small amount of 5-hydroxymethyl fur
J. Braz. Chem. Soc.. Publicado em: 2015-06
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2. APROVEITAMENTO DA CASCA DE ARROZ EM UMA MICRO CENTRAL TERMOELÉTRICA AVALIAÇÃO DOS IMPACTOS ECONÔMICOS E AMBIENTAIS PARA O SETOR ARROZEIRO DO RIO GRANDE DO SUL
The rice husk production in Rio Grande do Sul, state responsible for more than half of this cereals country production, leads to the need of an appropriate environmental management in view the impacts produced by this residue in the environment, whether they be local or global, like greenhouse effect impacts. Therefore, a rational utilization of this energet
Publicado em: 2009
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3. Síntese, caracterização e aplicação de polímeros conjugados derivados de ferroceno e de bisfenol-A / Synthesis, characterization and application of conjugated polymers derived from ferrocene and bisphenol-A
Owing to the current interest in organometallic polymers and their applications, a group of conducting polymers containing ferrocene in the main chain was synthesized aiming the study of their magnetoresistive, magneto-optic and redox properties. The following polymers were prepared via McMurry method: poly(1,1-ferrocenylenevinylene) (PFV) and poly[1,1-ferro
Publicado em: 2008
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4. Balanço de materiais na gestão ambiental da cadeia produtiva do carvão vegetal para produção de ferro gusa em Minas Gerais
The material balance is a methodology for environmental evaluation developed in the Industrial Ecology -IE science. IE looks for the concept of industrial metabolism on a parallel approach between industrial systems and biotic systems. And seek the improvement of the environmental performance of the production processes. For the conceptual analysis of the ma
Publicado em: 2008
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5. Multidimensional modelling and calculation of combustion in porous media
In contrast with household heating systems based on open combustion flames, burners based on premixed combustion in inert porous media are characterized by higher thermal efficiency and high turndown ratio allied with compacity of the units. Moreover, porous burners, where a flame is anchored inside a porous matrix, are associated with low pollutants formati
Publicado em: 2005
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6. Pequenas centrais térmicas como alternativas de geração de energia elétrica no Médio Vale do Itajaí
Devido aos grandes prejuízos decorrentes do apagão, ocorrido em 2001 na região sudeste e nordeste do País, a Geração Distribuída (GD) entrou no cenário do planejamento energético nacional. As empresas perderam produção, e conseqüentemente clientes, passaram a se preocupar com a geração própria de energia elétrica por meios convencionais ou at
Publicado em: 2004
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7. Resinas de silicona a base de silsesquioxanos: síntese, estudo estrutural, morfológico e avaliação do comportamento térmico
In the present work the synthesis, structure, morphology and thermal behaviour of silicone resins prepared from phenyltrichlorosilane, phenyltriethoxysilane, n-octyltriethoxysilane or n-dodecyltriethoxysilane, as sources of T units, and poly(dimethylsiloxane) or 1,3-diethoxytetramethyldisiloxane, as sources of D units were investigated. Two series of resins
Publicado em: 2001
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8. Response of sensory units with unmyelinated fibres to mechanical, thermal and chemical stimulation of the cat's cornea.
1. In the cat anaesthetized with sodium pentobarbitone, electrical activity was recorded from single unmyelinated sensory fibres innervating the cornea. 2. Based on their response to mechanical (calibrated aesthesiometer), chemical (10 mM acetic acid or 616 mM NaCl) and thermal (cooling from 35 to 5 degrees C; heating to 51 degrees C) stimuli, corneal unmyel
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9. Selective responsiveness of polymodal nociceptors of the rabbit ear to capsaicin, bradykinin and ultra-violet irradiation.
1. The activity of single C- and A-fibre cutaneous sensory units was recorded from the great auricular nerve of anaesthetized rabbits to compare the effects of chemical with other forms of stimulation under several experimental conditions. Chemical agents were delivered by close arterial injection. 2. Small intra-arterial injections of bradykinin (0.2 microg
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10. Excitation of Mouse Superficial Dorsal Horn Neurons by Histamine and/or PAR-2 Agonist: Potential Role in Itch
Recent studies have suggested the existence of separate transduction mechanisms and sensory pathways for histamine and nonhistaminergic types of itch. We studied whether histamine and an agonist of the protease-activated receptor (PAR)-2, associated with nonhistaminergic itch, excite murine dorsal horn neurons. Single units were recorded in superficial lumba
American Physiological Society.
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11. NUCLEAR-FUELED CIRCULATORY SUPPORT SYSTEMS IV: RADIOLOGIC PERSPECTIVES
If an implantable artificial heart can be developed, it should prove beneficial to a significant group of patients. A variety of energy sources, such as biologic, electromagnetic, and nuclear, are under evaluation. Currently, biologic fuel cell technology is not sufficiently advanced to permit its extrapolation to the power levels required for implantable ci
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12. Endothermic force generation in fast and slow mammalian (rabbit) muscle fibers.
Isometric tension responses to rapid temperature jumps (T-jumps) of 3-7 degrees C were examined in single skinned fibers isolated from rabbit psoas (fast) and soleus (slow) muscles. T-jumps were induced by an infrared laser pulse (wavelength 1.32 microns, pulse duration 0.2 ms) obtained from a Nd-YAG laser, which heated the fiber and bathing buffer solution