Now showing items 542-561 of 1755

    • Early warning method for the commodity prices based on artificial neural networks: SMEs case 

      Silva, Jesus; MOJICA HERAZO, JULIO CESAR; Rojas Millán, Rafael Humberto; Pineda Lezama, Omar Bonerge; Morgado Gamero, W.B.; Varela Izquierdo, Noel (Procedia Computer Science, 2019)
      Applications based on Artificial Neural Networks (ANN) have been developed thanks to the advance of the technological progress which has permitted the development of sales forecasting on consumer products, improving the ...
    • Early warning system based on data mining to identify crime patterns 

      Viloria Silva, Amelec Jesus; Palacio de la Cruz, Stefany; Hernández Ureche, Jannys; Garcia Tamayo, Diana Marcela; Neira Molina, Harold Roberto; Hernandez P, Hugo; Martinez Ventura, Jairo Luis; Romero, Ligia (Communications in Computer and Information Science, 2019-07-26)
      The analysis of criminal information is critical for the purpose of preventing the occurrence of offenses, so the crime records committed in the past are analyzed including perpetrators. The main objective was to ...
    • Early warning system for detection of urban pluvial flooding hazard levels in an ungauged basin 

      Acosta Coll, Melisa Andrea; Ballester Merelo, Francisco Jose; Martínez Peiro, Marcos Antonio (Natural Hazards, 2018-06-01)
      Prolonged and high intensity rainfall often saturates urban drainage systems and generates urban pluvial flooding, resulting in hazardous flash floods. The city most affected by urban flooding in Colombia (South America) ...
    • An Easy Method to Prepare D3 and C2-TATP Crystals 

      Espinosa Fuentes, Eduardo Antonio; Colpas Castillo, Fredy; Meza Fuentes, Edgardo; Ropero, Jorge (Propellants, Explosives, Pyrotechnics, 2016)
      D3 and C2 TATP structures interconvert at room temperature. Herein, an easy method to isolate both conformers is shown that consists of multiple recrystallization steps using different solvent and heating to boiling. ...
    • Ecoepidemiology of Alphaviruses and Flaviviruses 

      Guzmán, Camilo; Calderón, Alfonso; MATTAR, SALIM; Tadeu-Figuereido, Luiz; Salazar-Bravo, Jorge; Alvis-Guzmán, Nelson; Zakzuk Martinez, Elias; Gonzáles, Marco (Corporación Universidad de la Costa, 2020)
      Within the ecosystems, the balance is important since the populations maintain their size and the food habits that are constant over time; in contrast, the disappearance of natural sources or the alteration of habitat at ...
    • Econometric analysis of the industrial growth determinants in Colombia 

      Henao Rodriguez, Carolina; Lis Gutierrez, Jenny Paola; Gaitan, Mercedes; Malagón, Luz Elena; Viloria Silva, Amelec Jesus (Lecture Notes in Computer Science, 2018)
      An econometric study is carried out using a panel data model with fixed effects to identify the industrial development determinants in Colombia during the term 2005–2015. The database used in the study corresponds to World ...
    • Econometric analysis of the industrial growth determinants in Colombia 

      Henao Rodriguez, Carolina; Lis Gutierrez, Jenny Paola; Gaitan, Mercedes; Malagón, Luz Elena; Viloria Silva, Amelec Jesus (Universidad de la Costa, 2018)
      An econometric study is carried out using a panel data model with fixed effects to identify the industrial development determinants in Colombia during the term 2005–2015. The database used in the study corresponds to World ...
    • Economic analysis and optimization of a renewable energy based power supply system with different energy storages for a remote island 

      Shahzad Javed, Muhammad; Ma, Tao; Jurasz, Jakub; Canales, Fausto A; Lin, Shaoquan; Ahmed, Salman; Zhang, Yijie (Corporación Universidad de la Costa, 2021)
      This study investigates and compares the various combinations of renewable energies (solar, wind) and storage technologies (battery, pumped hydro storage, hybrid storage) for an off-grid power supply system. Four configurations ...
    • Economic and energy analysis of small capacity grid-connected hybrid photovoltaic-wind systems in Mexico 

      Peña Gallardo, Rafael; Ospino C., Adalberto; Segundo Ramírez, Juan; Hernández Rodriguez, Aurelio; NORIEGA ANGARITA, ELIANA MARIA; Muñoz Maldonado, Yecid Alfonso (Corporación Universidad de la Costa, 2019-12-03)
      The integration of renewable energies in the electric power system, as a solution to the growing demand for electricity in developing countries, has become a vital issue, such is the case of Mexico. The purpose of this ...
    • Economic and energy analysis of small capacity grid-connected hybrid photovoltaic-wind systems in Mexico 

      Peña Gallardo, Rafael; Ospino Castro, Adalberto; Ramírez, Juan Segundo; Hernández Rodriguez, Aurelio; Noriega Angarita, Eliana; Muñoz Maldonado, Yecid (International Journal of Energy Economics and Policy, 2020)
      The integration of renewable energies in the electric power system, as a solution to the growing demand for electricity in developing countries, has become a vital issue, such is the case of Mexico. The purpose of this ...
    • Economic and environmental multiobjective optimization of a wind–solar–fuel cell hybrid energy system in the colombian caribbean region 

      Guillermo, Valencia; Benavides, Aldair; Cárdenas, Yulineth (Energies, 2019-05-15)
      A hybrid system was analyzed and optimized to produce electric energy in non-interconnected zones in the Colombian Caribbean region, contributing to the reduction of greenhouse gas emissions and the improvement in efficient ...
    • Economic Assessment of Changes in the Regulation of the Transmission Activity in Colombia 

      Andrade-Becerra, Andrés; Marenco-Rua, Sergio; Grimaldo-Guerrero, John-William; Noriega-Angarita, Eliana-Maria; Silva-Ortega, Jorge-Ivan (Corporación Universidad de la Costa, 2019)
      The research presents an analysis of the technical, legal and economic implications generated due the change in regulating for the remuneration of the electricity transmission sector in Colombia. Economic comparisons are ...
    • Economic burden of air pollution in Colombia 

      Alvis-Zakzuk, N. J.; Diaz-Jimenez, D.; Hilarión-Gaitán, L.; Valencia, S.; Gutierrez-Clavijo, J.; Castañeda-Orjuela, C. (Universidad de la Costa, 2019-05)
      To estimate indirect costs related to the loss of productivity due to premature mortality associated with air quality risk factors in Colombia, 2016. We estimated potential productivity years of life lost (PPYLL) related ...
    • Economic cost of severe acute respiratory infection associated to influenza in Colombian children 

      Salcedo Mejía, Fernando; ALVIS-ZAKZUK, NELSON J.; CARRASQUILLA SOTOMAYOR, MARIA; Castañeda-Orjuela, Carlos; DE LA HOZ RESTREPO, FERNANDO; Alvis-Guzmán, Nelson (Universidad de la Costa, 2020)
      Background: Influenza is considered a leading public health problem because its large economic burden of disease worldwide, especially in low-and middle-income countries, such as Colombia. Objective: We aimed to estimate ...
    • Economic costs of chikungunya virus in Colombia 

      Alvis Zakzuk, Nelson Jose; Díaz Jiménez, Diana; Castillo Rodríguez, Liliana; Castañeda Orjuela, Carlos Andres; Paternina Caicedo, Angel Jose; Pinzón Redondo, Hernando Samuel; Carrasquilla Sotomayor, María; Alvis Guzman, Nelson Rafae; De La Hoz Restrepo, Fernando (Universidad de la Costa, 2018)
      Objective: The aim of the present study was to estimate the economic impact of chikungunya virus (CHIKV) infection in Colombia from a societal perspective. Methods: We conducted a retrospective, bottom-up cost-of-illness ...
    • Economic impact of infections and antibiotics 

      Alvis Guzman, Nelson Rafael; De La Hoz Restrepo, Fernando; Pinzón Redondo, Hernando Samuel (Sepsis, tercera edición, 2017)
      In this chapter, we review several aspects with respect to the burden of infectious diseases, its impact in morbidity and mortality, and its economic burden. Furthermore, we referenced the actual situation with relation ...
    • Economic losses reduction through the implementation of statistical process control: case study in the process of medical accounts in a technology company 

      Neira Rodado, Dionicio; Royert, Geraldin; Borrero López, luz Adriana; Velásquez Rodríguez, Javier (, 2019)
      Statistical process control (SPC) is one of the most important tools for process continuous improvement. Its usefulness lies on the fact that it helps in the identification of causes of variation in the process. This allows ...
    • Economic order quantity for perishables with decreasing willingness to purchase during their life cycle 

      Suárez Díaz, Ronald David; Paternina-Arboleda, Carlos; Martínez-Flores, José Luis; Jimenez Barros, Miguel Angel (Universidad de la Costa, 2020)
      In an inventory management model for perishables, depletion due to interacting with the demand is of importance, but also, damage to products is a relevant variable. This article considers that demand and sales phenomena ...
    • El edificio hibrido como herramienta positiva 

      Rodriguez Celin, Sharon; Ordoñez, Juan (Universidad de la Costa, 2020)
      A lo largo de los años y con el pasar del tiempo la arquitectura ha venido mutando y avanzando de manera positiva para así poder darle solución a situaciones diversas. El edificio hibrido es una semilla de la evolución ...
    • Edificios Híbridos en la vida cotidiana 

      Gil Ruiz, José Luis; Urbina Hernández, Jesús enrique (Universidad de la Costa, 2020)
      Estos edificios son estructuras capaces de albergar programas dispares, de promover la interacción de distintos usos urbanos y combinar las actividades privadas con la esfera pública, así logrando una gran variedad de ...