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Establishing governing equations for 3D cell culture in perfusion bioreactors
(2014-05)
Culturing cells and regenerating tissues in vitro on 3D scaffolds involves several challenges, such as efficient nutrient transportation, uniform stress distribution, and the removal of wastes. Bioreactors not only allow ...
New liquid holdup, load point and flooding velocity models in different regions of operations for a structured packed column
(2014-12)
Scope and Method of Study: Liquid holdup of structured packed column affects the pressure drop, flooding velocity, and HETP. For this reason, liquid holdup was used as an important model parameter by different researchers ...
Accelerating convergence of leapfrogging optimization - Applications to nonlinear process modeling and nonlinear model predictive control
(2014-07)
Conventionally used optimization methods in chemical engineering applications such as linear programming (LP), Levenberg-Marquardt and sequential quadratic programming (SQP) handle nonlinear objective function (OF) surfaces ...
Development of a predictive equation of state for equilibrium and volumetric properties of diverse molecules and their mixtures
(2014-12)
Accurate prediction of the phase equilibrium and volumetric properties of pure fluids and their mixtures is essential for chemical process design and related applications. Although experiments provide accurate data at ...
Leapfrogging with improved initialization and its applications: Demonstration of leapfrogging on horizon predictive control of a heat exchanger
(2014-07)
Leapfrogging (LF) is a recently developed optimization technique that initially places players in random spots in the feasible decision variable space [1]. The approach to reach the global optimum is by "Leaping" the player ...
Quantitative structure-property relationship generalized activity coefficient models
(2014-05)
Phase behavior properties of chemical species and their mixtures are essential to design chemical processes involving multiple phases. Thermodynamic models are used in phase equilibria calculations to determine properties, ...
Sweet sorghum bioethanol production: Research, demonstration, and operational issues
(2014-12)
Sweet sorghum or Sorghum bicolor (L) moench is sugar rich, grows with minimal inputs, and is suitable for cultivation in dry regions making it a desirable energy crop for Oklahoma. In-field fermentation of sweet sorghum ...