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A Modified Barrier and Barrier Method and the Optimal Power Flow Problem
(2017-01-01)
This work proposes an approach that uses a union of methods based on logarithmic barrier function and modified logarithmic barrier function for the resolution of the reactive optimal power flow problem. In this proposed ...
Primal-dual logarithmic barrier and augmented Lagrangian function to the loss minimization in power systems
(Taylor & Francis Inc, 2006-07-01)
This article presents a new approach to minimize the losses in electrical power systems. This approach considers the application of the primal-dual logarithmic barrier method to voltage magnitude and tap-changing transformer ...
Optimal reactive power flow via the modified barrier Lagrangian function approach
(ELSEVIER SCIENCE SALAUSANNE, 2012)
A new approach called the Modified Barrier Lagrangian Function (MBLF) to solve the Optimal Reactive Power Flow problem is presented. In this approach, the inequality constraints are treated by the Modified Barrier Function ...
Optimal reactive power flow via the modified barrier Lagrangian function approach
(Elsevier B.V. Sa, 2012-03-01)
A new approach called the Modified Barrier Lagrangian Function (MBLF) to solve the Optimal Reactive Power Flow problem is presented. In this approach, the inequality constraints are treated by the Modified Barrier Function ...
Schottky-type grain boundaries in CCTO ceramics
(Pergamon-Elsevier B.V. Ltd, 2011-10-01)
In this work we studied electrical barriers existing at CaCu(3)Ti(4)O(12) (CCTO) ceramics using dc electrical measurements. CCTO pellets were produced by solid state reaction method and X-ray diffractograms showed which ...
Transitional spaces from exterior to interior as functional vision barriers in ageing
(Sage Publications Ltd, 2014-12)
We examined the visual efficiency and visual discomfort of users of a typical transitional space in a bright climate. The subject moves from a brighter exterior to a dimmer interior, facing an abrupt change in light level ...
Logarithmic barrier-augmented Lagrangian function to the optimal power flow problem
(Elsevier B.V., 2005-09-01)
This paper presents a new approach to solve the Optimal Power Flow problem. This approach considers the application of logarithmic barrier method to voltage magnitude and tap-changing transformer variables and the other ...
The effect of monensin concentration on dry matter intake, ruminal fermentation, short-chain fatty acid absorption, total tract digestibility, and total gastrointestinal barrier function in beef heifers
(2016-06-01)
In a 4 × 4 Latin square design (24-d periods), 4 ruminally cannulated Hereford × Angus/ Simmental heifers were used to evaluate the effect of increasing levels of monensin concentration on DMI, ruminal fermentation, ...
The effect of monensin concentration on dry matter intake, ruminal fermentation, short-chain fatty acid absorption, total tract digestibility, and total gastrointestinal barrier function in beef heifers
(Amer Soc Animal Science, 2016-06-01)
In a 4 x 4 Latin square design (24-d periods), 4 ruminally cannulated Hereford x Angus/Simmental heifers were used to evaluate the effect of increasing levels of monensin concentration on DMI, ruminal fermentation, short-chain ...
Physiological and pathophysiological factors affecting the expression and activity of the drug transporter MRP2 in intestine: Impact on its function as membrane barrier
(Academic Press Ltd - Elsevier Science Ltd, 2016-07)
The gastrointestinal epithelium functions as a selective barrier to absorb nutrients, electrolytes and water, but at the same time restricts the passage into the systemic circulation of intraluminal potentially toxic ...