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Recent Submissions

Environmental indemnity: seeking effective mechanisms for ensuring the participation of law enforcement agencies

Kanatovich Alibayev, Askar; Dzhanabayevna Bekisheva, Sabigul; Hernández García de Velazco, Judith Josefina; Chumaceiro Hernández, Ana Cecilia; Serikbolovich Ibrayev, Alisher (ASERS PublishingRomania, 2022)

Currently, there is an increase in the number of environmental violations and the environmental damage they cause. The article presents the results of the study of the legal framework and the practice of law enforcement ...
The impact of sustainable development and social responsibility on quality education

Chumaceiro Hernández, Ana Cecilia; Hernández García de Velazco, Judith Josefina; Velazco Hernández, Jovana Cristina; Govorukhin, Yuri Mikhailovich; Pavlovna Rogozhina, Anna (ASERS PublishingRomania, 2022)

In recent years the educational system has opted to implement sustainable strategies that allow access, coverage,relevance, and quality of education. The University does not escape these realities combined and the need to ...
Society of Knowledge and ICT skills in Universities

Chumaceiro Hernández, Ana Cecilia; Hernández García de Velazco, Judith Josefina; Acurero Luzardo , Marilú Tibisay (Elsevier BVNetherlands, 2022)

Today's new realities and social demands involve a technological apparatus that societies that seek to generate sustainable development through the generation and dissemination of knowledge cannot be ignored. This research ...
University social responsibility for the generation of ICT skills

Chumaceiro Hernández, Ana Cecilia; Hernández García de Velazco, Judith Josefina; Perez Prieto, Maria Elena (Elsevier BVNetherlands, 2022)

In understanding the adaptation to emerging social needs, higher education institutions must make more flexible and develop an integration of information and communication technologies in training processes. The inclusion ...
Strategies for the adoption of innovation processes in agricultural productive units of the department of La Guajira – Colombia: literary review and systemic approach

Ramírez Molina, Reynier Israel; Herrera, Beliña; Sukier, Harold; Juan David, Ríos Pérez; Torregroza Espinosa, Ana Carolina; LAY, NELSON (Universidad del ZuliaVenezuela, 2023)

From the appearance of man to the present, food production has been a critical issue in ensuringthe survival of the human species. Over the centuries, agricultural production has evolved with the domestication of plant ...
Overview of mobile communications in Colombia and introduction to 5G

Barrios-Ulloa, Alexis; Cama-Pinto, Dora; Arrabal Campos, Francisco Manuel; Martínez Lao, Juan Antonio; Monsalvo, Jose; Hernández-López, Audomaro; Cama-Pinto, Alejandro (Multidisciplinary Digital Publishing Institute (MDPI)Switzerland, 2023)

The deployment of 5G around the world continues to progress at a rapid pace, especially in North America and Asia. Its advantages and efficiency as a data transmission network have been widely demonstrated in different ...
Investigación desde el aula: semilleros de investigación en la educación media colombiana

Navarro De Arco, Margarita; Acevedo Merlano, Alvaro (Associacao Brasileira de Psicologia Escolar e Educacional (ABRAPEE)Brazil, 2022)

En este documento se presenta el modelo de investigación educativa desde el aula implementado en el Colegio Gimnasio Campestre El Rodadero, en la ciudad de Santa Marta, Colombia. Este modelo consistió en la creación de un ...
Muros que hablan: la interculturalidad de una ciudad del caribe colombiano en el Muralismo y el Street art

CARO PÉREZ, OLGA ; Fontalvo Ortiz, Angie ; Acevedo Merlano, Alvaro; QUINTERO LEÓN, MARGARITA (Editora ChampagnatBrazil, 2022)

El presente artículo pretende la construcción de imaginarios sociales en la Región Caribe de Colombia, representados en el Muralismo y el Street art, tomando como caso central a la ciudad de Barranquilla. Además, se exploran ...
Las consecuencias de la violencia filio-paternal reflejadas en una historia de vida

TRUJILLO VARGAS, JOSÉ JESÚS; Sahagún Navarro, Marta; Cárdenas Rodríguez, Rocio; Ramírez Giraldo, Andrés Fernando (Ediciones ComplutenseMadrid, 2016)

Los cambios existentes en la familia, unidos a un proceso de transformación social, han posibilitado que exista un fenómeno relativamente poco conocido como es el de la violencia ascendente, que se erige como una de las ...
Evolution, challenges, and perspective in the implementation of projects with renewable energy sources: Colombia case

Moreno Rocha, Christian Manuel ; Melo Boiler, Jorge D.; Muñoz Pizarro, Samira M.; Mora Higuera, Leidy M.; Insignares Conde, William Ricardo (EconJournalsTurkey, 2022)

This work quantifies the evolution in the implementation and development of renewable energies in Colombia, as well as evidence the current challenges and development prospects. The high demand for electricity in Colombia ...
Design of strategies for an efficient and applicative transition from the linear economy to the circular economy, Colombia case

Moreno Rocha, Christian Manuel ; Santamaria Jotty, Luis Santiago (Global Scientific ResearchUnited States, 2022)

The process of transition from linear economy to the circular economy has shown progress in other countries thanks to the strategies implemented, by analyzing these from the perspective of some authors, it was possible to ...
Electric power losses in distribution networks

Díaz, Sergio; Moreno Rocha, Christian Manuel ; Silva, Jorge Iván; Berdugo Sarmiento, Kelly Margarita; Caicedo, José; Ruiz, José; Gordon, Javier (Karadeniz Technical UniversityTurkey, 2021)

According to international organizations such as the Energy Information Agency (EIA) and the InterAmerican Development Bank (IDB), reducing electricity losses can contribute to achieving the objective of universal access ...
Challenges and perspectives of the use of photovoltaic solar energy in Colombia

Moreno Rocha, Christian Manuel ; Milanés Batista, Celene; Arguello Rodríguez, Willian Fernando; Fontalvo Ballesteros, Arley Jesús ; Núñez Álvarez, José Ricardo (Institute of Advanced Engineering and Science (IAES)Indonesia, 2022-10)

This article quantifies the development of photovoltaic solar energy in Colombia and its current development prospects. The high demand for electricity in Colombia is increasing since there is a large population, industrial, ...
Evaluation of energy alternatives through FAHP for the energization of colombian insular areas

Moreno Rocha, Christian Manuel ; Florian Domingue, Esnaider D.; Diaz castillo, Daniel ; Logreira Vargas, Kevin; MEDINA GUZMAN, ANDRES ALFREDO (EconJournalsTurkey, 2022)

In this study, the methodology of the Analytical Hierarchy Process with fuzzy logic (FAHP) is implemented to provide decision criteria in the selection, planning and development of electric power generation projects from ...
Decision-making support framework for electricity supply in non-interconnected rural areas based on FAHP

Moreno, Christian; Ospino-Castro, Adalberto; Robles Algarín, Carlos (EconJournalsTurkey, 2022)

The implementation of electrification programs in non-interconnected rural areas in Colombia is a challenge for the country in order to reduce the social gap in these regions. This task is responsibility of the Mining and ...
Statistical analysis of research in the study of the implementation of the circular economy in the preservation of water resources

Moreno Rocha, Christian Manuel ; Santamaria jotty, Luis Santiago (Global Scientific ResearchUnited States, 2022)

Under the current consumption model, the depletion of natural resources, specifically water, is a reality that we will face if we do not promote a paradigm shift: resources can be reused leaving behind the traditional ...
Statistical analysis of design variables in a chiller plant and their influence on energy consumption and life cycle cost

diaz torres, yamile; Gullo, Paride; Hernández Herrera, Hernán; Torres del Toro, Migdalia; Álvarez Guerra, Mario A.; Silva Ortega, Jorge I; Speerforck, Arne (MDPI AGSwitzerland, 2022-08-16)

An appropriate design of a chiller plant is crucial to guarantee highly performing solutions. However, several design variables, such as type of systems, total cooling capacity, and hydraulic arrangement, need to be ...
Statistical-mathematical procedure to determine the cooling distribution of a chiller plant

Díaz Torres, Yamile; Hernández Herrera, Hernán; Torres del Toro, Migdalia; Álvarez Guerra, Mario A.; Gullo, Paride; Silva Ortega, Jorge I (Elsevier Ltd.United Kingdom, 2022)

This paper presents a procedure to determine the cooling capacity distribution of the chillers composing a chiller plant using a statistical analysis of the building cooling demand. The mathematical-statistical procedure ...
Evaluation, hierarchy and selection of the best source of energy by using AHP, as a proposed solution to an energy and socio-economic problem, in the case of Colombia’s Pacific zone

Moreno Rocha, Christian Manuel ; Fernández Pérez, David; Rodríguez Retamoza, Jesus; Silva Ortega, Jorge I; Brieva Bohorquez, Denis; TABORDA CATALAN, LUIS ALBERTO (EconJournalsTurkey, 2022-09-27)

This research presents the process and the results to weigh and classify a set of criteria and subcriteria to be considered in Renewable Energy Planning projects for a particular area of Colombia. The implementation of ...
Comparative experimental analysis of the fire resistance of sandwich panels with polyisocyanourate core reinforced with fiberglass fabric

Murillo, Michel; Acosta P, Aura; Quesada Q, Claudia; Abisambra G, Valery; Tutikian, Bernardo; Christ, Roberto (Elsevier BVUnited Kingdom, 2022)

Sandwich panels are systems with structural functions that are used in the field of civil construction, currently, they are used in the construction of buildings and also as cladding for walls, ceilings, among others. This ...

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Artículos científicos
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Artículos de investigación publicados por miembros de la comunidad universitaria.

LEER
Environmental indemnity: seeking effective mechanisms for ensuring the participation of law enforcement agencies
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Kanatovich Alibayev, Askar | 2022

Currently, there is an increase in the number of environmental violations and the environmental damage they cause. The article presents the results of the study of the legal framework and the practice of law enforcement to determine environmental damage, its scope, and possible compensation. The objective is to define the powers, functions, and roles of the agencies responsible for enforcing the law to guarantee environmental compensation. It is studied from the bibliographical, analytical, and critical review of the legal regulation, the practice of applying the law, and the scientific opinions on the compensation for damage to the environment. It is concluded that adequate environmental compensation depends directly on the activities of law enforcement agencies to identify and suppress environmental crimes and carry out administrative or criminal proceedings against offenders. The particularities of filing a civil lawsuit as a tool to repair the damage caused by an environmental crime are considered, focused on organizational and legal issues that negatively affect the effectiveness of environmental rights protection, as mentioned above, including the environmental incompetence of those who investigate crimes in that sphere and the shortcomings of judicial practice in determining the environmental damage. The main mechanisms to ensure the participation of law enforcement agencies in the calculation of environmental compensation, which has been developed in world practice, are presented. The authors made proposals for improving the existing organizational and legal framework and leveling the shortcomings of law enforcement practice.

LEER
The impact of sustainable development and social responsibility on quality education
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Chumaceiro Hernández, Ana Cecilia | 2022

In recent years the educational system has opted to implement sustainable strategies that allow access, coverage,relevance, and quality of education. The University does not escape these realities combined and the need to generate areal impact on all its stakeholders. Thus, the challenge of training competent individuals to face the future is increasinglyrelevant. This research aims to reflect theoretically on the impact that Sustainable Development and Social Responsibilityeffectively have on quality university education. For which relevant theoretical elements have developed that support in thefirst instance the origins of sustainable development and social responsibility and the fundamental elements of each one ofthem and, in the second instance, it explains how these binomial favors quality, sustainable and relevant education. Themethod is served from the qualitative paradigm, documentary observation, and content analysis. Among the findings, it isfound that education influences people and nations, which is why Universities must take on the challenge of responsible teaching. It is concluded that today higher education institutions are called to the teaching of excellence. In particular, training future specialists in the tourism and hospitality industry requires the approach when it is not enough to carry out substantive functions of the University: teaching, research, extension, and social projection, but they must be articulated with each other,to contextualize the student of the problems of the environment, sustainable development of the territory and how they can be solved

LEER
Society of Knowledge and ICT skills in Universities
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Chumaceiro Hernández, Ana Cecilia | 2022

Today's new realities and social demands involve a technological apparatus that societies that seek to generate sustainable development through the generation and dissemination of knowledge cannot be ignored. This research addresses identifying key areas to be developed to promote a timely knowledge society for the digital age. Hermeneutics and documentary content analysis facilitated the method, concluding that generating more extraordinary digital skills in those responsible for transmitting knowledge is essential to achieving durability and efficient transmission of information.

LEER
University social responsibility for the generation of ICT skills
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Chumaceiro Hernández, Ana Cecilia | 2022

In understanding the adaptation to emerging social needs, higher education institutions must make more flexible and develop an integration of information and communication technologies in training processes. The inclusion of the Information and Communication Technologies (ICT) in higher education institutions transforms the teacher's education and demand, their skills, and the orientation of their pedagogical practice of new knowledge, skills, and attitudes. Methodologically, documents and specialized bibliography are reviewed to assume the reflection and put forward arguments that describe some approaches for the innovation of educational practice and the transformation of the profile of the university professor in order to respond to the demands of today's society. It is concluded that it is necessary to apply a new conception of student-users, role changes in teachers, and administrative changes concerning communication systems, design, and distribution of teaching. All this implies, in turn, changes in the canons of teaching-learning towards a more flexible and technological model.

LEER
Strategies for the adoption of innovation processes in agricultural productive units of the department of La Guajira – Colombia: literary review and systemic approach
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Ramírez Molina, Reynier Israel | 2023

From the appearance of man to the present, food production has been a critical issue in ensuringthe survival of the human species. Over the centuries, agricultural production has evolved with the domestication of plant and animal species and the emergenceof technologies and techniques in production processes, affecting population growthand cities. The research seeks to describe the strategies for adopting innovation processes in the Department of La Guajira -Colombia agricultural production units.The results show that, in the last four decades, innovation strategies have begun to be discussed as a term that has evolved, going from incorporating new technologies to including elements related to efficiency, economic sustainability, sustainability, redesign of organizational structures, and the implementation of best practices that result in quality, quantity, safety and hygiene of agricultural activities. It is concluded that the studies on innovation strategies in agricultural productive units can be about phenomena that promote agricultural innovation, agricultural production models,and improvements in agricultural production processes, of which there is evidence of application in the Department of La Guajira

LEER
Overview of mobile communications in Colombia and introduction to 5G
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Barrios-Ulloa, Alexis | 2023

The deployment of 5G around the world continues to progress at a rapid pace, especially in North America and Asia. Its advantages and efficiency as a data transmission network have been widely demonstrated in different fields such as agriculture, education, health, and surveillance. However, this process does not have the same dynamics in Latin America, specifically in Colombia. The country is currently implementing actions aimed at facilitating the deployment of this technology in the short term, including pilot tests for the use of the radio spectrum, spectrum auctions, the planning of future auctions, and the review of spectrum caps. The results of this review allow us to conclude that despite the forecasts and the intentions of the Colombian government and mobile communication service operators, 5G in standalone mode will not be commercially available in Colombia before the end of 2023. The main failures in its deployment are related to the lack of available spectrum to support the ultrahigh-reliability and low-latency, enhanced mobile broadband, and massive machine-type communications scenarios, as well as the delay in the auction processes for its assignment.

LEER
Investigación desde el aula: semilleros de investigación en la educación media colombiana
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Navarro De Arco, Margarita | 2022

En este documento se presenta el modelo de investigación educativa desde el aula implementado en el Colegio Gimnasio Campestre El Rodadero, en la ciudad de Santa Marta, Colombia. Este modelo consistió en la creación de un semillero de investigación integrando a estudiantes de educación media, con el objetivo de generar espacios académicos que permitieran desarrollar las competencias investigativas desde el área de humanidades, de acuerdo con los lineamientos que el Ministerio de Educación nacional propone. Para ello se implementó la teoría antropológica de lo didáctico, entendiendo a la educación como un proceso social de transmisión cultural. Metodológicamente se aplicó la etnografía escolar y la investigación acción. Los resultados, para este caso, muestran que la creación de semilleros fortalece las competencias investigativas en los estudiantes a través del trabajo colectivo, incentivándolos a interesarse por la ciencia y la investigación, en contraste a las metodologías formalistas y unilineales utilizadas tradicionalmente.

LEER
Muros que hablan: la interculturalidad de una ciudad del caribe colombiano en el Muralismo y el Street art
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CARO PÉREZ, OLGA | 2022

El presente artículo pretende la construcción de imaginarios sociales en la Región Caribe de Colombia, representados en el Muralismo y el Street art, tomando como caso central a la ciudad de Barranquilla. Además, se exploran las transformaciones que han generado este tipo de movimientos en la reconfiguración del espacio urbano y tejido social, al ser utilizado como un instrumento de comunicación intercultural que busca sentar una crítica e impactar al transeúnte del común. Para ello, se realizó desde una metodología cualitativa la revisión teórica que va desde la relación entre comunicación y arte, procesos interculturales, imaginarios sociales, hasta la revisión del estado del arte de estas expresiones. Se analizaron los resultados obtenidos de las entrevistas con algunos de sus representantes, quienes manifiestan cómo a través del arte han sido participes de la construcción de nuevos relatos; asimismo, mencionan algunas de las temáticas que más los inspiran, la intencionalidad que buscan lograr por medio de sus obras, y también cómo ha sido la experiencia al realizar intervenciones de manera independiente o con financiamiento económico, sentando las bases de una discusión centrada en cómo el apoyo de entidades públicas y privadas puede limitar los discursos de dichos relatos.

LEER
Las consecuencias de la violencia filio-paternal reflejadas en una historia de vida
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TRUJILLO VARGAS, JOSÉ JESÚS | 2016

Los cambios existentes en la familia, unidos a un proceso de transformación social, han posibilitado que exista un fenómeno relativamente poco conocido como es el de la violencia ascendente, que se erige como una de las modalidades de violencia que más se vienen dando en dicho ámbito. En base al estudio de este fenómeno, en esta investigación hemos utilizado la técnica cualitativa de la historia de vida, apoyándonos en un diario de campo donde hemos tomado notas sobre nuestro quehacer diario a nivel terapéutico, en aras de mitigar los efectos de dicho proceso. En esta investigación se establecieron los siguientes objetivos: establecer la conexión que existe entre estilo educativo familiar y el uso de la violencia por parte del menor y evaluar en qué medida la terapia familiar mitiga el uso de la violencia por parte del menor. El modelo educativo familiar, junto a otras dimensiones1, determina que las situaciones de violencia se den de manera reiterada entre padres e hijos, existiendo refuerzos negativos continuos de ambas partes para mantener un ciclo recurrente de conductas, del que difícilmente se puede «salir» si no es a través de un proceso de terapia psicológica continuado.

LEER
Evolution, challenges, and perspective in the implementation of projects with renewable energy sources: Colombia case
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Moreno Rocha, Christian Manuel | 2022

This work quantifies the evolution in the implementation and development of renewable energies in Colombia, as well as evidence the current challenges and development prospects. The high demand for electricity in Colombia is increasing due to the great increase in population, industry and commerce, which generates greater energy consumption and as a consequence economic, social and environmental problems. The objective of this study was to analyze the behavior of the energy projects submitted to the Mining Energy Planning Group (UPME) during the last 15 years until July 2022, as well as to study the research areas with the highest performance. technology and the corresponding radiation intensity. In addition, it shows an historic information about the projects presented both not in force as of the date of closing of this investigation, classified according to their source, according to their range of power and according to its stage of implementation, finally, we made a synthesis of the new regulations governing the motivation and implementation of projects with renewable energy sources, being as this work a very good source of reference for further studies of the implementation of renewable energy sources in Colombia.

LEER
Design of strategies for an efficient and applicative transition from the linear economy to the circular economy, Colombia case
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Moreno Rocha, Christian Manuel | 2022

The process of transition from linear economy to the circular economy has shown progress in other countries thanks to the strategies implemented, by analyzing these from the perspective of some authors, it was possible to identify which ones can be replicated in the country. The approach of this article is qualitative of a proactive documentary type with an inductive method, the sources were secondary, from databases such as Dialnet, Scielo, Academic Google, repository of universities, books, foundation reports and DANE reports, also information was obtained from a primary source through a dialogue whit recyclers and owners of warehouses in the village of La Playa and Barranquilla. Through the sources, essential strategies for sustainable development in Colombia were analyzed, such as: pedagogical strategies focused on changing the behavior of the various sectors of the community through educational campaigns, technological innovation strategies that allow the development of consumer goods that generate the least environmental impact, and social strategies. It was concluded that eco-design, the implementation of innovative technology and access to loans for circular activities are essential for the development of the model, in addition, successful experiences of developed countries in term of C.E can be replicated since they offer the opportunity to improved through pedagogical technological and social strategies.

LEER
Electric power losses in distribution networks
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Díaz, Sergio | 2021

According to international organizations such as the Energy Information Agency (EIA) and the InterAmerican Development Bank (IDB), reducing electricity losses can contribute to achieving the objective of universal access to modern energy sources. The reduction in the levels of losses would also imply a reduction in greenhouse gas emissions, as well as a reduction in electricity tariffs for the final consumer. This research seeks to analyze the levels of electrical energy losses in distribution networks in order to propose possible solutions that allow the electrical power system to provide stability in the equipment that is part of the network, leading to a cost analysis in the future within the planning of the country's electrical network.

LEER
Challenges and perspectives of the use of photovoltaic solar energy in Colombia
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Moreno Rocha, Christian Manuel | 2022-10

This article quantifies the development of photovoltaic solar energy in Colombia and its current development prospects. The high demand for electricity in Colombia is increasing since there is a large population, industrial, and business increase, which brings a higher energy consumption and consequently economic, social, and environmental problems. Faced with this situation, a possible solution is proposed, using solar energy, to supply the increase in demand and mitigate the problems caused by current electricity generation because Colombia has high levels of solar radiation in almost the entire territory. The objective of this research is based on the analysis of the behavior of the projects on photovoltaic solar systems presented to the mining-energy planning unit (UPME) in the last 14 years until September 30, 2020, as well such as the study of the areas with the most effective implementation of this technology and their respective radiation indices. In addition, a synthesis is made of the regulations, laws, and tax incentives that exist for the implementation of this technology and the different stages of execution of the projects approved and in performance.

LEER
Evaluation of energy alternatives through FAHP for the energization of colombian insular areas
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Moreno Rocha, Christian Manuel | 2022

In this study, the methodology of the Analytical Hierarchy Process with fuzzy logic (FAHP) is implemented to provide decision criteria in the selection, planning and development of electric power generation projects from renewable energy sources in the insular regions of Colombia. In this study, six renewable energy sources were considered, biomass combustion, anaerobic digestion of biomass, biogas landfills, waste incineration, photovoltaic energy and hydrogen-generated energy, due to their energy potential in insular areas and not interconnected with the national electricity system. To determine the order of priority in the development of energy conversion technologies, a questionnaire was drawn up and sent to a group of experts. Given the need to generate electricity in a sustainable way, the information was analyzed under four main criteria: technical, environmental, social and economic. Sixteen additional subcriteria were selected based on a literature review. In general, the economic criterion is the most relevant in the area due to the high investment and operating costs of electricity generation. The social criterion highlights the opportunity to create new jobs very important for the study area, while the environmental criterion highlights the component of renewable energy substitution and environmental care, a key aspect in the diversification of the energy matrix, which is part of the country's political agenda. Regarding the technological component, self-consumption photovoltaic energy seems the most favorable due to its low environmental impact and the considerable price reduction experienced by the solar panel market in recent years.

LEER
Decision-making support framework for electricity supply in non-interconnected rural areas based on FAHP
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Moreno, Christian | 2022

The implementation of electrification programs in non-interconnected rural areas in Colombia is a challenge for the country in order to reduce the social gap in these regions. This task is responsibility of the Mining and Energy Planning Unit (UPME), which has as challenges the implementation of renewable energy projects that allow diversifying the national energy matrix. For this reason, this paper proposes a support framework for multicriteria decision-making in the electricity supply of non-interconnected rural areas for the Colombian Caribbean Region. The multicriteria method of the Fuzzy Analytical Hierarchical Process (FAHP) was used, which allows the incorporation of a fuzzy triangular scale to improve the imprecision in the judgments made by experts. A hierarchical structure with 6 renewable energy alternatives, 4 criteria and 16 sub-criteria was designed, which allowed the implementation of a paired comparison survey that was answered by 10 experts from the region. The results obtained show the relevance of all alternatives, which is evidenced by a percentage difference of less than 5% between all the options. The best alternative was solar PV (20,27%). Regarding the criteria, the most relevant were economic (39,6%) and environmental (30,8%). The most relevant sub-criterion was the renewable fraction, related to the possible reuse of equipment (20,2%).

LEER
Statistical analysis of research in the study of the implementation of the circular economy in the preservation of water resources
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Moreno Rocha, Christian Manuel | 2022

Under the current consumption model, the depletion of natural resources, specifically water, is a reality that we will face if we do not promote a paradigm shift: resources can be reused leaving behind the traditional patterns of taking, manufacturing and discarding. Under this premise, in recent years, the concept of circular economy, an economic premise interrelated with sustainability has become an alternative for responsible consumption. The objective is to maintain water sources, if possible, through controlled and responsible collection, increase the reduction of consumption through the reuse of the resource and the appropriate and optimal treatment for its return to nature. Through Research, Development and Innovation, R+D+i, it is possible to define new schemes for the reuse of water, both for industrial sectors and for local governments; for example, in relation to the management of waste water, which goes from being waste to becoming a resource again. A study of information, bibliometrics and scientometry of scientific articles associated with the circular economy of water resources was carried out to identify research trends in this topic, as well as to establish the parameters of sustainability and governance of this resource. In the management of this resource, certain social, economic, environmental processes, among others, have not been considered, which affects the issue of water governance. In the development of this work, the Scopus database (Elsevier, B.V., 2021) and the Text Mining program VantagePoint (Search Technology, Academic Version 12.0) were used. 425 records were identified, during the period 2010 – 2021, in which an increasing trend of 83% is observed. The researchers' interest is focused on applications in environmental science and engineering. As for the countries, Spain and Italy stand out with the highest number of publications. Given the growing interest and importance in the subject, it is necessary to establish which models should be adopted to optimize the use of water resources, contributing to the protection of this natural supply, key to the prolongation of life.

LEER
Statistical analysis of design variables in a chiller plant and their influence on energy consumption and life cycle cost
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diaz torres, yamile | 2022-08-16

An appropriate design of a chiller plant is crucial to guarantee highly performing solutions. However, several design variables, such as type of systems, total cooling capacity, and hydraulic arrangement, need to be considered. On the one hand, at present, different technical criteria for selecting the most suitable design variables are available. Studies that corroborate the influence of the design variables over the operational variables are missing. In order to fill this knowledge gap, this work proposes a statistical analysis of design variables in chiller plants operating in medium- and large-scale applications and evaluates their influence on energy consumption and life cycle cost (LCC) under the same thermal demand conditions. A case study involving 138 chiller plant combinations featuring different arrangements and a Cuban hotel was selected. The results suggested that the total chiller design and cooling capacity distribution among chillers have a significant influence on the energy consumption of the chiller plant with a Spearman’s Rho and Kendall Tau (τ) correlation index value of −0.625 and 0.559, respectively. However, with LCC, only the cooling capacity distribution among the chillers had a certain influence with a Kendall Tau correlation index value of 0.289. As for the considered total cooling capacity, the applied statistical test showed that this design variable does not have any influence on performing the chiller plant.

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Statistical-mathematical procedure to determine the cooling distribution of a chiller plant
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Díaz Torres, Yamile | 2022

This paper presents a procedure to determine the cooling capacity distribution of the chillers composing a chiller plant using a statistical analysis of the building cooling demand. The mathematical-statistical procedure uses tools such as frequency histograms, box-and-whisker plots, stem-and-leaf plots, the generalized least squares method, and finally an iterative factorial procedure to generate from the processed information. Besides the manufacturer’s data, all possible chiller plant combinations considering design constraints. The procedure was verified in a hotel facility. Eight thermal demand profiles were simulated. Statistical analysis yielded a range of individual capacities between 100–353 kW. The procedure generated 189 refrigeration plant combinations between 2 to 5 chillers, with a safety factor (SF) between 10%–20%. The highest number of combinations considered plants comprising three and four chillers, reaching 50 and 70 chiller plant options, respectively.

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Evaluation, hierarchy and selection of the best source of energy by using AHP, as a proposed solution to an energy and socio-economic problem, in the case of Colombia’s Pacific zone
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Moreno Rocha, Christian Manuel | 2022-09-27

This research presents the process and the results to weigh and classify a set of criteria and subcriteria to be considered in Renewable Energy Planning projects for a particular area of Colombia. The implementation of electrification programs in the study area faces various obstacles, among them the inadequate selection of criteria and sub-criteria for assessing the relevance and credibility of the implemented projects, which is very important today, causing huge losses from many points of view. It is proposed to implement a multicriteria methodology (MMCM) that prioritizes criteria and subcriteria, the selected methodology is applied to the use of renewable and conventional energy sources in urban, rural,and isolated regions, one of the most used methods in the best selection process and also when making energy decisions. The Hierarchy Analysis Process (AHP) is used, the data is obtained from a survey to a group of experts with a collection and verification period of about 4 months, only to reduce inaccuracies on the developer side. This study explains the results obtained with a new multipurpose support system that helps to prioritize the most appropriate energy decision criteria and subcriteria of energy options to provide sufficient energy to meet local needs and improve living conditions. Based on the literature review, 4 criteria and 16 subcriteria were identified and submitted to review using the AHP methodology (Hierarchical Analysis Process). It can be determined that the most important criterion is the economic, followed by the social, environmental, and technical, and a hierarchy of subcriteria related to each criterion is established, establishing that for the study area the best source of energy is photovoltaic solar by communities.

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Comparative experimental analysis of the fire resistance of sandwich panels with polyisocyanourate core reinforced with fiberglass fabric
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Murillo, Michel | 2022

Sandwich panels are systems with structural functions that are used in the field of civil construction, currently, they are used in the construction of buildings and also as cladding for walls, ceilings, among others. This article shows the results of an experimental comparative analysis of the behavior of fire resistance in two sandwich panels with structural function composed of Polyisocyanurate (PIR) foam core and fiberglass-reinforced fabric of dimensions of 3150 mm × 2800 mm x 150 mm. The first-panel system on its face exposed to fire was coated with plaster plates while the other system with ceramic plates. The parameters subject to comparison for both systems were structural stability, tightness, and thermal insulation. For this, the fire resistance test was carried out evaluating the behavior of each of the Samples subjected to the exposure of the fire to compare with each other. According to the results obtained in this research, the materials used to shape the sandwich panel structure and the coating material influence the results of the parameters and the fire resist the behavior. Thus, in this study the plasterboard-coated system showed better performance against the evaluated parameters and a long time of resistance to fire than that of the ceramic-plated system, checking the thermal insulation benefits and fire protection qualities of the plaster.

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Statistical analysis of research in the study of the implementation of the circular economy in the preservation of water resources ﻿

Statistical analysis of design variables in a chiller plant and their influence on energy consumption and life cycle cost ﻿

Statistical-mathematical procedure to determine the cooling distribution of a chiller plant ﻿

Evaluation, hierarchy and selection of the best source of energy by using AHP, as a proposed solution to an energy and socio-economic problem, in the case of Colombia’s Pacific zone ﻿

Comparative experimental analysis of the fire resistance of sandwich panels with polyisocyanourate core reinforced with fiberglass fabric ﻿

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Artículos científicos

Environmental indemnity: seeking effective mechanisms for ensuring the participation of law enforcement agencies

The impact of sustainable development and social responsibility on quality education

Society of Knowledge and ICT skills in Universities

University social responsibility for the generation of ICT skills

Strategies for the adoption of innovation processes in agricultural productive units of the department of La Guajira – Colombia: literary review and systemic approach

Overview of mobile communications in Colombia and introduction to 5G

Investigación desde el aula: semilleros de investigación en la educación media colombiana

Muros que hablan: la interculturalidad de una ciudad del caribe colombiano en el Muralismo y el Street art

Las consecuencias de la violencia filio-paternal reflejadas en una historia de vida

Evolution, challenges, and perspective in the implementation of projects with renewable energy sources: Colombia case

Design of strategies for an efficient and applicative transition from the linear economy to the circular economy, Colombia case

Electric power losses in distribution networks

Challenges and perspectives of the use of photovoltaic solar energy in Colombia

Evaluation of energy alternatives through FAHP for the energization of colombian insular areas

Decision-making support framework for electricity supply in non-interconnected rural areas based on FAHP

Statistical analysis of research in the study of the implementation of the circular economy in the preservation of water resources

Statistical analysis of design variables in a chiller plant and their influence on energy consumption and life cycle cost

Statistical-mathematical procedure to determine the cooling distribution of a chiller plant

Evaluation, hierarchy and selection of the best source of energy by using AHP, as a proposed solution to an energy and socio-economic problem, in the case of Colombia’s Pacific zone

Comparative experimental analysis of the fire resistance of sandwich panels with polyisocyanourate core reinforced with fiberglass fabric