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Direct power control for VSC-HVDC systems: An application of the global tracking passivity-based PI approach
(Elsevier Ltd, 2019)
This paper proposes a direct power control (DPC) for a high-voltage direct-current system using voltage source converters (VSC-HVDC) by applying passivity-based control theory. This system allows doing an efficient and ...
Programmable diffractive lens for ophthalmic application
(SPIE, 2014)
Pixelated liquid crystal displays have been widely used as spatial light modulators to implement programmable diffractive optical elements, particularly diffractive lenses. Many different applications of such components ...
Virtual lab in Modelica of a cement clinker cooler for operator training
(2014)
Plant operator training plays a fundamental role in improving the energy efficiency of the cement manufacturing process and in reducing the CO2 emission. A virtual lab of a clinker grate cooler, intended for the training ...
Hybrid choice model for alternative fuelled vehicles [Modelación híbrida para la elección de vehículos con energías alternativas]
(Interciencia Association, 2014)
The promotion of alternative fuelled vehicles for the reduction of atmospheric emissions is a highly discussed topic nowadays. It requires evaluating the potential demand and people's preferences for vehicles using these ...
Multispectral tracking of phytoplankton in the Colombian Caribbean
(2004)
In a quantitative research study, the concentration and circulation of group of micro-organisms "phytoplankton" have been found through the images of the ocean colour in the Colombian Caribbean Sea. These images have been ...
The potential that ethical finance has to generate new investment alternatives in Colombia
(2008)
This article examines the need for and the opportunity of developing ethical finance initiatives, specifically ethical banks and ethical investment funds, as alternatives to strengthen development in Colombia. The validity ...
Evaluating Features Selection on NSL-KDD Data-Set to Train a Support Vector Machine-Based Intrusion Detection System
(Institute of Electrical and Electronics Engineers Inc., 2019)
The integrity of information and services is one of the more evident concerns in the world of global information security, due to the fact that it has economic repercussions on the digital industry. For this reason, big ...
Variation in experimentation styles and domain-specific knowledge
(2007)
This study explored the relationship between experimental strategies and domain-specific knowledge within a task of scientific discovery. Groups of expert biologists, experimental psychologists, and lag people in both ...
Applicability of the classic WACC concept in practice
(2007)
A large percentage of companies use the discounted cash flow (DCF) approach as the primary technique for investment/project evaluation and the capital budgeting process. This approach requires forecasting the detailed cash ...
Finding a voice through research
(SAGE Publications Ltd, 2006)
One question guided this experimental study: What impact does the change from teacher training to educational research have on university teachers' methodology and attitudes to teaching? To find answers to this question, ...
Universidad Tecnológica de Bolívar - 2017 Institución de Educación Superior sujeta a inspección y vigilancia por el Ministerio de Educación Nacional. Resolución No 961 del 26 de octubre de 1970 a través de la cual la Gobernación de Bolívar otorga la Personería Jurídica a la Universidad Tecnológica de Bolívar.