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Now showing items 21-30 of 66
Propriedades estruturais e eletroquímicas de espinélios de lítio e manganês dopados para uso em baterias de lítio.
(Universidade Federal de São Carlos, 2005-09-01)
The spinels investigated in the present work
were obtained by solid state reaction at 750 ºC for 72 h among the precursors
ε-MnO2, LiOH and the respective oxides/salt of the doping ions. In order to control
the particles ...
Preparação e aplicação de óxidos tipo perovskita La1-xCexNiO3 e La1-xCaxNiO3 para obtenção de gás de síntese a partir do metano.
(Universidade Federal de São Carlos, 2006-04-20)
Catalysts precursors with perovskite structure like La1-xCexNiO3 ( x = 0,
0.03, 0.05, 0.1, 0.4 ,0.7) and La1-xCaxNiO3 (x = 0, 0.05, 0.1, 0.3, 0.5, 0.8) have
been prepared by three different methods: precipitation, citrate ...
Material particulado atmosférico na cidade de São Carlos- SP: quantificação e identificação de fontes.
(Universidade Federal de São Carlos, 2005-05-05)
In the present work, breathable particulate matter (PM10) concentration was measured in their fine (PM2.5-10) and ultra-fine (MP2.5) fractions, in the municipal district of São Carlos. The samplings were carried out from ...
Estudo da cristalização de lactose em diferentes solventes
(Universidade Federal de São Carlos, 2007-02-23)
In the study of the lactose crystallization process, the nucleation phenomena and
crystalline growth have been evaluated, when the systems were submitted to different solvent
and operational conditions.
The solubility s ...
Secagem em leito fixo de sementes com mucilagem.
(Universidade Federal de São Carlos, 2004-04-06)
Attempting to contribute with the studies on mucilaginous seeds drying, the objective of this work is to study the simultaneous heat and mass transfer during drying in fixed bed of papaya seeds with and without mucilage. ...
Inovações na produção de antibióticos β-lactâmicos
(Universidade Federal de São Carlos, 2009-04-02)
The industrial production of 6-APA includes: (1) cultivation of Penicillium chrysogenum; (2) extraction with organic solvents, (3) crystallization; (4) penicillin hydrolysis by immobilized penicillin acylase; (5) extraction ...
Influência das condições de alimentação de glicerol e ornitina na produção de ácido clavulânico por Streptomyces clavuligerus
(Universidade Federal de São Carlos, 2008-03-26)
The clavulanic acid (CA) is a powerful inhibitor of β-lactamases, enzymes that clives the β-
lactam ring of penicillins and cephalosporins, inactivating these compounds. CA is
traditionally produced by Streptomyces ...
Contribuição ao estudo termodinâmico das soluções de ácido acetilsalicílico
(Universidade Federal de São Carlos, 2007-09-20)
As one of the most regularly traded-in medicines in the world, the acetylsalicylic acid
has been scarcely researched when in solution. This study is aimed at determining the
thermodynamic equilibrium parameters for ...
Síntese enzimática de ampicilina em reator integrado.
(Universidade Federal de São Carlos, 2004-02-11)
Enzymatic route to produce antibiotic acts in mild reaction conditions
(aqueous medium, neutral pH and moderate temperatures). Furthermore it reduces
the number of reaction steps and decreases the amount and toxicity of ...
Determinação da carga eletrostática em aerossóis e seu efeito na filtração de gases.
(Universidade Federal de São Carlos, 2005-05-06)
It has been shown that the presence of electrostatic charges in particles affects
significantly the performance of a filter, both increasing collection efficiency and reducing
pressure drop. The aim of the present work is ...