Automatic And Controlled Processes
Mostrando 1-11 de 11 artigos, teses e dissertações.
-
1. Development and application of an automatic tool for the selection of control variables based on the self-optimizing control methodology
Abstract Rules for control structure design for industrial processes have been extensively proposed in the literature. Some model-based methodologies have a sound mathematical basis, such as the self-optimizing control technology. The procedure can be applied with the aid of available commercial simulators, e.g., PRO/IITM and AspenPlus®, from which the conv
Braz. J. Chem. Eng.. Publicado em: 2017-07
-
2. The level of environmental noise affects the physiological performance of Glycine max under water deficit
Plants in natural environments are subjected to a multitude of environmental cues. However, studies addressing physiological analyzes are usually focused on the isolation of a stress factor, making it difficult to understand plants behavior in their extremely complex natural environments. Herein, we analyzed how environmental variability (noise) may influenc
Theor. Exp. Plant Physiol.. Publicado em: 2013
-
3. EVALUATION OF THE MICROSTRUCTURAL AND MECHANICAL PROPERTIES OF THE GIRTH WELDING OF AN API 5L X80 STEEL TUBE BY SEMI-AUTOMATIC WELDING PROCESSES WITH GAS SHIELDING / AVALIAÇÃO DA MICROESTRUTURA E PROPRIEDADES MECÂNICAS DA SOLDAGEM CIRCUNFERENCIAL DO AÇO API 5L X80 POR PROCESSOS DE SOLDAGEM SEMI-AUTOMÁTICOS COM PROTEÇÃO GASOSA
The present work evaluates the changes in the microstructural and mechanical properties of an API 5L X80 steel tube due to the influence of heat input exerted during a welding procedure that used two sequential welding processes. The tubes were manufactured using the UOE process, from steel that was produced by controlled rolling without accelerated cooling.
Publicado em: 2007
-
4. Memória de trabalho e atenção dividida : um estudo do processamento de frases
O presente estudo teve como objetivo analisar o papel da atenção no processamento de frases à luz do conceito de Memória de Trabalho e do paradigma do Efeito Hebb. Buscouse verificar se existiam diferenças significativas entre provas de recordação imediata serial quando da presença ou não de uma tarefa concorrente atencional. A hipótese de trabalho
Publicado em: 2007
-
5. Um analisador fluxo-batelada com bomba-pistÃo aplicado à preparaÃÃo de soluÃÃes de calibraÃÃo e microemulsÃes: determinaÃÃo de metais em Ãgua mineral e gasolina por GF AAS
The development of flow analyzers and continuous monitoring of some chemical processes have lead to the design of flow manifolds more cheap and simplified, with potential for miniaturization. For these purposes, the use of flow systems seems to be an attractive option. Among these systems, the Flow-batch analyzers (FBA) were applied with success in the imple
Publicado em: 2007
-
6. DYNAMIC STRATEGIC MANAGEMENT OF INFORMATION AND COMMUNICATION TECHNOLOGY OF FIRMS THAT ACT ON STRATEGIC ALLIANCES NETWORKS: AN ANALYTICAL FRAMEWORK PROPOSAL. / GESTÃO ESTRATÉGICA DINÂMICA DA TECNOLOGIA DE INFORMAÇÃO E COMUNICAÇÃO DAS EMPRESAS QUE ATUAM EM REDES DE ALIANÇAS ESTRATÉGICAS: PROPOSTA DE ARCABOUÇO ANALÍTICO
In the current business environment, where one of the few unchangeable facts is that change in this environment is constant and more and more accelerated, firms need to adapt quickly and continuously to new situations, by redefining and adapting their strategies. In this scenario, of tough competition, firms strive to concentrate their activities in what is
Publicado em: 2007
-
7. Secagem de caqui em condições controladas : efeito sobre a qualidade do produto e consumo energetico. / Drying of caqui in controlled conditions: effect on the product quality and energy consumption.
Aiming to understand the effect of drying conditions on the quality of dried persimmon as well as on the energetic consumption, this work investigated the viability of a process control strategy based on fixed temperature inside the product, which was compared with the conventional process that uses fixed air temperature. In order to evaluate the effect of a
Publicado em: 2005
-
8. NEURAL AND COGNITIVE STUDIES OF THOUGHT DISORDER IN SCHIZOPHRENIA
Thought Disorder (TD) is one of the most striking features of schizophrenia and is manifested clinically as abnormal speech. Despite being a core feature of the illness very little is known of its pathophysiology. One model based on a series of word-pair priming studies formulates TD as a consequence of hyper activation of the semantic network. However, as w
Publicado em: 2002
-
9. Construction of and auto-balanced ac suceptometer and study of eletronic conductor polymers for magnetic susceptibility and magnetic resonance. / Construção de um Susceptômetro AC Autobalanceado e Estudo de Polímeros Condutores Eletrônicos por Susceptibilidade Magnética e Ressonância Magnética.
A mutual inductance bridge which may be used for automatic measurement of ac magnetic susceptibilities from 4 K to room temperature, at frequencies up to 1 kHz, is described. The susceptometer employs an alternative and new arrangement for the probe. The coil set is kept at room temperature and moves in such a way to place the sample in the center of each of
Publicado em: 1998
-
10. Brain signatures of artificial language processing: Evidence challenging the critical period hypothesis
Adult second language learning seems to be more difficult and less efficient than first language acquisition during childhood. By using event-related brain potentials, we show that adults who learned a miniature artificial language display a similar real-time pattern of brain activation when processing this language as native speakers do when processing
The National Academy of Sciences.
-
11. Strand displacement amplification as an in vitro model for rolling-circle replication: deletion formation and evolution during serial transfer.
Strand displacement amplification is an isothermal DNA amplification reaction based on a restriction endonuclease nicking its recognition site and a polymerase extending the nick at its 3' end, displacing the downstream strand. The reaction resembles rolling-circle replication of single-stranded phages and small plasmids. The displaced sense strand serves as