Dynamic Process Simulation
Mostrando 1-12 de 123 artigos, teses e dissertações.
-
1. Scheduling optimum planting window for gladiola based on El Niño Southern Oscillation
ABSTRACT: Gladiola is an important cut flower worldwide and scheduling field gladiola production is largely dependent on planting at the correct time since its development is controlled by the air temperature. The aim of this study was to configure a planting window of gladiola in order to harvest spikes to be sold on All Souls' Day and Mother's Day holidays
Sci. agric. (Piracicaba, Braz.). Publicado em: 20/12/2019
-
2. Simulador didático para análise dos transientes de ondas de tensão em uma linha de transmissão similar à transmissão e reflexão de ondas eletromagnéticas
Abstract O modelo de educação nas últimas décadas passou por mudanças consideráveis do ponto de vista didático. Com o avanço da tecnologia, a velocidade de obtenção de informações aumenta e o uso de ferramentas que permitem a visualização dinâmica de conteúdos torna-se um forte aliado ao processo de ensino-aprendizagem. Este trabalho trata da
Rev. Bras. Ensino Fís.. Publicado em: 29/07/2019
-
3. Complexidade de novos produtos: um modelo dinâmico para análise da perda de produtividade em sistemas produtivos
Resumo A globalização vem mudando constantemente as características do mercado consumidor no qual as empresas estão inseridas, bem como as necessidades de seus clientes. Deste modo, para se manterem competitivas dentro desse mercado, as empresas necessitam inserir em seus produtos determinadas características que acabam culminando com o aumento da comp
Gest. Prod.. Publicado em: 18/03/2019
-
4. Scenario reduction using machine learning techniques applied to conditional geostatistical simulation
Abstract One of the basic factors in mine operational optimization is knowledge regarding mineral deposit features, which allows to predict its behavior. This could be achieved by conditional geostatistical simulation, which allows to evaluate deposit variability (uncertainty band) and its impacts on project economics. However, a large number of realizations
REM, Int. Eng. J.. Publicado em: 2019-03
-
5. Research on Sliding Mode Method about Three-Dimensional Integrated Guidance and Control for Air-to-Ground Missile
ABSTRACT Based on adaptive sliding mode-control and back-stepping design method, an integrated guidance and control method with less calculation is proposed, which is designed for air-to-ground missile during the terminal course in three-dimensional space. The model of the control system with nonlinear and coupling is simplified, then the integrated guidance
J. Aerosp. Technol. Manag.. Publicado em: 14/01/2019
-
6. Towards the Brazilian Space Program Modeling Through the Combination of Stakeholder Theory and System Dynamics Methodology
Abstract: In the last 50 years, Stakeholder (STH) theory has become one of the main instruments of analysis, identification, classification and management of entities in the complex and conflicting corporate environment. In a similar way, System Dynamics (SD) methodology has been used as an instrument for modeling and simulating the dynamics of complex syste
J. Aerosp. Technol. Manag.. Publicado em: 08/11/2018
-
7. The Formation and Dynamic Evolution of Antiphase Domain Boundary in FeAl Alloy: Computational Simulation in Atomic Scale
The main objective of the present work is to build a model and analyze the dynamic evolution process of antiphase domain boundary (APDB) in FeAl alloy. The formation, evolution of APDB, long range order (LRO), the crystal structure transition, impact of temperature on LRO, are investigated. Comparisons with experiments proves that the model is competent for
Mat. Res.. Publicado em: 02/08/2018
-
8. Economic advantages of dynamic analysis in the early stages of mining projects
Abstract The use of dynamic simulation is technically advantageous for the project as shown by various authors. However, is it economically advantageous in the early stages of the project (FEL1 and FEL2)? The methodology to economically evaluate the use of dynamic simulation considers the time and development cost compared with the time and cost spent to cha
REM, Int. Eng. J.. Publicado em: 2018-07
-
9. Comparing a Dynamic Fed-Batch and a Continuous Steady-State Simulation of Ethanol Fermentation in a Distillery to a Stoichiometric Conversion Simulation
Abstract An autonomous sugarcane bioethanol plant was simulated in EMSO software, an equation oriented process simulator. Three types of fermentation units were simulated: a six parallel fed-batch reactor system, a set of four CSTR in steady state and one consisting of a single stoichiometric reactor. Stoichiometric models are less accurate than kinetic-base
Braz. J. Chem. Eng.. Publicado em: 2017-10
-
10. A high-level dynamic analysis approach for studying global process plant availability and production time in the early stages of mining projects
Abstract In the early stage of front-end studies of a Mining Project, the global availability (i.e. number of hours a plant is available for production) and production (number of hours a plant is actually operated with material) time of the process plant are normally assumed based on the experience of the study team. Understanding and defining the availabili
REM, Int. Eng. J.. Publicado em: 2017-06
-
11. Investigation of High-Speed Cryogenic Machining Based on Finite Element Approach
Abstract The simulation of cryogenic machining process because of using a three-dimensional model and high process duration time in the finite element method, have been studied rarely. In this study, to overcome this limitation, a 2.5D finite element model using the commercial finite element software ABAQUS has been developed for the cryogenic machining proc
Lat. Am. j. solids struct.. Publicado em: 2017-03
-
12. Dynamic Response and Microstructure Evolution of Oxygen-Free High-Conductivity Copper Liner in Explosively Formed Projectile
Abstract The dynamic response and microstructure evolution of oxygen-free high-conductivity copper in a shaped charge liner are investigated through microstructural examination of a soft-recovery EFP. Adiabatic shear bands and voids which is the failure original of copper EFP can be observed in the rear part of the projectile. Numerical simulation results il
Lat. Am. j. solids struct.. Publicado em: 2017