BA. Grupos de Investigación
Collections in this community
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Ambiente y Vida - GIAV [110]
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Contable - CINERA [14]
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DLAB [6]
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Estadística [71]
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EULER [79]
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POLIMATAS [15]
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Salud Publica – GISP [20]
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Zulima Science – ZSC [31]
Recent Submissions
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Impact of Biomass Drying Process on the Extraction Efficiency of C-Phycoerythrin
(BioTech, 2023-04-23)Drying the biomass produced is one of the critical steps to avoid cell degradation; however, its high energy cost is a significant technological barrier to improving this type of bioprocess’s technical and economic ... -
Redes sociodigitales y saberes colectivos de los venezolanos en Bogotá
(Bitacora Urbano TerritorialBogotá,Colombia, 2023-08)El objetivo del estudio es reconocer las dinámicas de redes y saberes colectivos dentro de la comunidad migrante venezolana en Bogotá (Colombia) durante la pandemia por COVID-19. Desde una perspectiva mixta exploratoria, ... -
A Modified Radiopropagation Multipath Model for Constant Refractivity Gradient Profiles
(Journal of Microwaves, Optoelectronics and Electromagnetic Applications, 2023-06)This paper presents a radiopropagation algorithm based on a Ray Tracing (RT) technique that combines a modified multipath model for constant refractivity gradient profiles and the Uniform Theory of Diffraction (UTD). A ... -
HYPERBRANCHED ALKYD RESINS OBTAINED FROM A HYPERBRANCHED POLYESTER POLYOL OF THE FIFTH GENERATION AND TALL OIL FATTY ACID
(Rasayan Journal of Chemistry, 2023-09)The first aim of this study was to synthesize hyperbranched alkyd resins from tall oil fatty acids and a hyperbranched polyester polyol via an esterification reaction. The second aim was to evaluate the effect of the fatty ... -
In Vitro antifungal activity of ethanol extracts from Cnidoscolus urens L. in controlling Colletotrichum spp. in Lycopersicum esculentum: a sustainable agricultural perspective
(Revista Colombiana de Ciencias Horticolas, 2023-05-01)Anthracnose, caused by the pathogenic fungi Colletotrichum spp., poses a significant threat to table tomato (Lycopersicum esculentum) cultivation. This study delves into the potential of plant extracts from Cnidoscolus ... -
Analysis of a three-dimensional numerical modeling approach for predicting scour processes in longitudinal walls of granular bedding rivers
(EUREKA: Physics and EngineeringEstonia, 2023-07-27)In rivers, longitudinal walls are protective structures that are directly supported on the riverbank are frequently used as hydraulic prevent the current from eroding the bank and causing scouring. However, these structures ... -
Using the Response Surface Methodology to Treat Tannery Wastewater with the Bicarbonate-Peroxide System
(ChemEngineering, 2023-07-16)A bicarbonate-peroxide (BAP) system was evaluated to improve the quality of industrial tannery wastewater using an I-optimal experimental design with four variables (temperature, initial pH, bicarbonate, and H2O2 concentration). ... -
Geopolymers Based on a Mixture of Steel Slag and Fly Ash, Activated with Rice Husks and Reinforced with Guadua angustifolia Fibers
(Sustainability (Switzerland), 2023-08-15)At present, the conservation of the environment represents an objective that everyone wants to achieve. The construction industry has influenced the advancement of alternative materials that comply with sustainable ... -
Leachate Treatment via TiO2/UV Heterogeneous Photocatalysis: A Multiple Polynomial Regression Model
(Ingeniería e InvestigaciónBogotá,Colombia, 2023-12-13)Advanced oxidation processes such as TiO2/UV heterogeneous photocatalysis are suitable treatment methods for wastewater with high pollutant loads such as landfill leachates. Optimizing the variables that ... -
Leasing como herramienta de financiamiento para las MIPYME del sector del calzado del municipio de Cúcuta
(Revista Venezolana de GerenciaMaracaibo,Venezuela, 2023-08-05)El objetivo fue determinar si hay o no diferencias entre el conocimiento sobre el leasing en relación con la aceptación del leasing y los beneficios del arrendamiento financiero como herramienta de financiación por parte ... -
A Phytochemical Approach to the Removal of Contaminants from Industrial Dyeing Wastewater
(ChemEngineering, 2023-09-28)This study investigates the influence of photoperiod and wastewater concentration on the growth of microalgae and cyanobacteria for the removal of environmentally significant parameters (COD, BOD, Cr, Fe, color, chlorides, ... -
Energy and exergetic performance analysis of a hybrid solar multi-stage Brayton cycle with different working fluids
(International Journal of Thermofluids, 2023-08-10)An energy and exergy model for a hybrid multi-stage Brayton cycle solar thermal plant is presented, incorporating an arbitrary number of compression stages with intermediate cooling and expansion with reheating. In hybrid ... -
Enhanced UV/H2O2 System for the Oxidation of Organic Contaminants and Ammonia Transformation from Tannery Effluents
(Processes, 2023-10-27)In this work, a UV/H2O2 system in real tannery wastewater was evaluated by an experimental design with optimal stage 2-level I-optimal reaction surface using Design Expert software to analyze the effects of temperature, ... -
Evaluation of Local Scour along the Base of Longitudinal Training Walls
(Bommanna Krishnappan, 2023-11-17)This study proposes a new empirical model for estimating local scour along the base of longitudinal training walls for granular riverbeds. The model’s performance was rigorously assessed through experiments conducted in ... -
Environmental Footprint of Inland Fisheries: Integrating LCA Analysis to Assess the Potential of Wastewater-Based Microalga Cultivation as a Promising Solution for Animal Feed Production
(Processes, 2023-11-20)This study evaluated the environmental impacts of producing 1 kg of biomass for animal feed grown in inland fisheries effluents as a culture medium using the ReCiPe method. Four scenarios with two downstream alternatives ... -
Sensitivity analysis and multi-objective optimization of the energy, exergy and thermo-economic performance of a Brayton supercritical CO2-ORC configurations
(Energy Reports, 2023-03-25)The following research compared some energy, exergetic and thermo-economic indicators of a supercritical CO2 simple Brayton cycle integrated with a simple organic Rankine cycle (SORC), and a regenerative organic Rankine ... -
Physical-mathematical model for determination of variation of internal forces in the simplified analysis of a beam
(2021-08-26). Springs are often taught in subjects of physics such as statics and solid mechanics belonging to civil engineering programs and mechanical engineering. This knowledge can be applied successfully in the modeling of ... -
Analysis of linear and non-linear effects in the frequency domain for a three-channel optical transmission system
(2021-08-26)This paper presents the analysis of a wavelength division multiplexer communication system in the frequency domain, with the objective of visualizing the incidence of the linear phenomena of attenuation and chromatic ... -
Acoustic emissions in the valuation of the combustion chamber pressure of an engine
(2021-08-26)Internal combustion engines demand advanced monitoring methodologies to promote efficient operation; particularly, the combustion pressure plays a central role in the overall performance, which promotes the utilization of ... -
Rappaport T S 2002 Wireless Communications Principle and Practice (New York: Prentice Hall)
(2021-08-26)Due to the strategies implemented to carry out the development of a correct teaching by virtual means, a methodological strategy of experimental tests was developed for the identification of polymeric materials through the ...