Zobrazeno 1 - 10
of 121
pro vyhledávání: '"F.V. Silva"'
Publikováno v:
Chemical Engineering Transactions, Vol 57 (2017)
This paper proposes to study the potential of use a three-tank system in laboratory scale to teach how to design a predictive controller (MPC) applied to a system with multiple inputs/multiple outputs (MIMO). An algorithm that predicts the future beh
Externí odkaz:
https://doaj.org/article/d8a3df19017a44ba9532fa99083cc5be
Publikováno v:
Chemical Engineering Transactions, Vol 57 (2017)
Model predictive controller (MPC), even when well projected, is minded to unmeasured disturbances along operation. It is usual to observe offset between controlled variables and their set points in result of those disturbances. The undesirable offset
Externí odkaz:
https://doaj.org/article/f8195395928747a19dd405b9a49ed884
Publikováno v:
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Vol 60, Iss 4, Pp 911-916 (2008)
Avaliou-se economicamente o efeito da suplementação protéico-energética em dois níveis de ingestão diária, 0,17% e 0,37% do peso vivo, sobre o desempenho de novilhos, em pastagens de Brachiaria brizantha cv. Marandu utilizando-se 14 animais po
Externí odkaz:
https://doaj.org/article/5335351628924210906b20244e238d96
Publikováno v:
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Vol 59, Iss 1, Pp 160-167 (2007)
Avaliou-se o efeito da suplementação protéico-energética em dois níveis de ingestão diária, 0,17 e 0,37% do peso vivo médio, sobre o no desempenho e consumo de matéria seca por bovinos, em pastagens de Brachiaria brizantha cv. Marandu. Para
Externí odkaz:
https://doaj.org/article/adc91e5f7ba24a51bb5d8678771f42ea
Publikováno v:
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Vol 60, Iss 4, Pp 1026-1028 (2008)
Alanine aminotransferase (ALT) and alkaline phosphatase (AP) hepatic enzymes, hematological values, and total plasmatic proteins (TPP) of 12 Wistar rats with systemic experimental sporotrichosis were evaluated. Inoculation was performed at 2x10³ cel
Externí odkaz:
https://doaj.org/article/8402b8ba25da4b1893b617a861e1e15e
Publikováno v:
Chemical Engineering Transactions, Vol 32 (2013)
Batch reactors are widely used in the polymer industry, especially for multi-purpose processes where different types of polymers are produced on demand. Batch polymerization reactors impose rather great operational difficulties due to the complex rea
Externí odkaz:
https://doaj.org/article/deda194fbe2e42c9bfc3d5cb50d7b20e
Publikováno v:
Chemical Engineering Transactions, Vol 32 (2013)
This paper presents six different approaches for concentration-temperature type cascade control of a fixed bed reactor for the production of phthalic anhydride by oxidation of o-xylene. In the cascade scheme, a primary loop is responsible for control
Externí odkaz:
https://doaj.org/article/b23accb6e7d040d5a5cc7fa0952ef44e
Publikováno v:
Chemical Engineering Transactions, Vol 32 (2013)
Pipe networks constitute the means of transporting fluids widely used nowadays. Increasing the operational reliability of these systems is crucial to minimize the risk of leaks, which can cause serious pollution problems to the environment and have d
Externí odkaz:
https://doaj.org/article/5e40a013c0f44799bbba1a185b58b298
Publikováno v:
Chemical Engineering Transactions, Vol 32 (2013)
Refrigeration systems are required in most chemical industries in order to maintain the temperature in process equipments, production line, air-conditioned environments or rooms, etc. The main drawback of the refrigeration systems is the great energy
Externí odkaz:
https://doaj.org/article/d4f306402cd04049bd6ca836d6aa2e79
Publikováno v:
Journal of Loss Prevention in the Process Industries. 80:104892