Browsing Investigaciones by Title
Now showing items 21-40 of 1467
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A Framework for Water Security Data Gathering Strategies
(Cartagena de Indias, 2022-09)At the international level, the term “water security” (WS) has gained increasing attention in recent decades. At the operational level, WS is assessed using tools that define the concept using a variety of dimensions and ... -
A generalization of the Gauss–Bonnet–Hopf–Poincaré formula for sections and branched sections of bundles
(Elsevier B.V., 2017)For a two-dimensional compact oriented Riemannian manifold (M,g), and a vector field V on M, the Hopf–Poincaré theorem combined with the Gauss–Bonnet theorem gives the Gauss–Bonnet–Hopf–Poincaré (GBHP) formula: ∑z∈Z(V)indz(V)= ... -
A generalized passivity-based control approach for power compensation in distribution systems using electrical energy storage systems
(Elsevier Ltd, 2018)This paper presents a generalized interconnection and damping assignment passivity-based control (IDA-PBC) for electric energy storage systems (EESS) such as: superconducting magnetic energy storage (SMES) and supercapacitor ... -
A Generic Materials and Operations Planning Approach for Inventory Turnover Optimization in the Chemical Industry
(Cartagena de Indias, 2020-05-22)Chemical industries usually involve continuous and large-scale production processes that require demanding inventory control systems. This paper aims to show the results of the implementation of a mixed-integer programming ... -
A Global Tracking Sensorless Adaptive PI-PBC Design for Output Voltage Regulation in a Boost Converter Feeding a DC Microgrid
(Cartagena de IndiasCampus Tecnológico, 2023-01-19)The problem of the output voltage regulation in a DC-DC boost converter feeding a DC microgrid is addressed in this research via the passivity-based control theory with a proportional–integral action (PI-PBC). Two external ... -
A Hooke's law-based approach to protein folding rate
(Academic Press, 2015)Kinetics is a key aspect of the renowned protein folding problem. Here, we propose a comprehensive approach to folding kinetics where a polypeptide chain is assumed to behave as an elastic material described by the ... -
A hybrid approach based on socp and the discrete version of the sca for optimal placement and sizing dgs in ac distribution networks
(Cartagena de Indias, 2020-12-27)This paper deals with the problem of the optimal placement and sizing of distributed generators (DGs) in alternating current (AC) distribution networks by proposing a hybrid master–slave optimization procedure. In the ... -
A linearized approach for the electric light commercial vehicle routing problem combined with charging station siting and power distribution network assessment
(Cartagena de IndiasCampus Tecnológico, 2021-05-21)Transportation electrification has demonstrated a significant position on power utilities and logistic companies, in terms of assets operation and management. Under this context, this paper presents the problem of seeking ... -
A low noise stenography method for medical images with QR encoding of patient information
(SPIE, 2017)This paper proposes an approach to facilitate the process of individualization of patients from their medical images, without compromising the inherent confidentiality of medical data. The identification of a patient from ... -
A low-cost multi-modal medical imaging system with fringe projection profilometry and 3D freehand ultrasound
(Cartagena de Indias, 2020-01-03)The growing need to perform surgical procedures, monitoring, and intervention of greater precision have led to the development of multimodal medical imaging systems. Multimodal images are a strategy to overcome the limitations ... -
A machine learning approach for banks classification and forecast
(Cartagena de Indias, 2019-04)n this research, a classification model is developed for the banking sector using the machine earning technique GLMNET. In the first place, a clustering process was developed, where 3 clearly differentiated groups were ... -
A Machine Learning Approach for Severe Maternal Morbidity Prediction at Rafael Calvo Clinic in Cartagena-Colombia
(Cartagena de Indias, 2020-05-22)There is a huge problem in public health around the world called severe maternal morbidity (SMM). It occurs during pregnancy, delivery, or puerperium. This condition establishes risk for babies and women lives since it’s ... -
A machine learning model for emotion recognition from physiological signals
(Elsevier Ltd, 2020)Emotions are affective states related to physiological responses. This study proposes a model for recognition of three emotions: amusement, sadness, and neutral from physiological signals with the purpose of developing a ... -
A machine learning model for occupancy rates and demand forecasting in the hospitality industry
(Springer Verlag, 2016)Occupancy rate forecasting is a very important step in the decision-making process of hotel planners and managers. Popular strategies as Revenue Management feature forecasting as a vital activity for dynamic pricing, and ... -
A machine learning model for triage in lean pediatric emergency departments
(Springer Verlag, 2016)High demand periods and under-staffing due to financial constraints cause Emergency Departments (EDs) to frequently exhibit over-crowding and slow response times to provide adequate patient care. In response, Lean Thinking ... -
A machine learning model to predict standardized tests in engineering programs in Colombia
(Cartagena de Indias, 2023-08)This research develops a model to predict the results of Colombia’s national standardized test for Engineering programs. The research made it possible to forecast each student’s results and thus make decisions on reinforcement ... -
A mathematical model for the optimization of e-commerce logistics operations in the face of the spread of COVID-19
(Cartagena de Indias, 2021)In this work, it was carry out a new model of attention to product orders in e-commerce operations in a pandemic situation. The model was evaluated in situations that require capacity and flexibility for companies when the ... -
A Mathematical Model for the Optimization of the Non-metallic Mining Supply Chain in the Mining District of Calamarí-Sucre (Colombia)
(Cartagena de Indias, 2020-10-08)This article presents a mathematical model of the Supply chain of non-metallic mining. The model considers uncertainty scenarios in materials, elements for capacity planning in a multilevel chain and with multiple products. ... -
A method for evaluating the quality service of a user unit in a water service company in Colombia
(Cartagena de Indias, 2020)This research study proposes a method to evaluate the quality of service of a user service unit in a water service company in Colombia. Based on the theoretical foundation associated with the quality of service and the Six ... -
A Method to Rationalize the Product Portfolio in Retail Stores
(Cartagena de Indias, 2020-04-29)Retail store operations face a variety of challenges and complexities. Determining the best assortment is the main problem in the retail store. This re-search presents a practical methodology for the analysis of products ...
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.
