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Copyright of Revista Catalana de Dret Ambiental is the property of Universitat Rovira I Virgili and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Cuadernos del Centro de Estudios de Diseño y Comunicación is the property of Cuadernos del Centro de Estudios de Diseno y Comunicacion and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of La Granja, de Ciencias de la Vida is the property of Universidad Politecnica Salesiana and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Actualidad Jurídica Ambiental is the property of CIEMAT, through its Centro Internacional de Estudios de Derecho Ambiental (CIEDA) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Entre Ciencia e Ingeniería is the property of Entre Ciencia e Ingenieria and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Visual Review is the property of Eagora Science and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The high penetration of distributed renewable resources requires integration strategies that ensure a balance between supply and demand. Transactive energy (TE) comprises a set of mechanisms capable of achieving this objective by using value as an operational parameter. This paper presents a review of the state of the art in TE, aiming to provide the reader with a general overview of concepts and applications. To accomplish this, the document offers a review of market and operational structures, with a particular focus on the role of TE in the composition of local energy markets. Furthermore, an analysis of the value concept in energy is proposed as a linking element between two current topics of academic interest: multi-energy systems and the water-energy-food nexus. Finally, some international and national pilot projects are showcased, allowing for the identification of the practical validity of the concepts described. [ABSTRACT FROM AUTHOR]

Copyright of Revista de Estudios Internacionales Mediterraneos is the property of Taller de Estudios Internacionales Mediterraneos and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The transition towards a more sustainable energy supply becomes relevant in the face of a critical climate scenario. Since the 1970s, there has been concern among academics, governments and non-governmental organisations about the need to reduce the use of fossil fuels and associated greenhouse gas (GHG) emissions. The tourism sector is not exempt from these challenges, and for this reason, this paper aims to analyse the situation of tourism in the context of energy transition, in order to identify the challenges for its decarbonisation. In order to achieve this, this exploratory-descriptive study is based on secondary sources of information from specialised literature, statistical and regulatory documents. The results show that academic-scientific studies have gradually increased in recent years, detecting socio-cultural, economic-financial, political-regulatory, technical and environmental challenges that each of the components of the tourism sector must face for a transition to a low-carbon economy. However, it is necessary to deepen the analyses from holistic approaches that critically address energy appropriation in the tourism sector. [ABSTRACT FROM AUTHOR]

Copyright of Revista de Investigación Desarrollo e Innovación is the property of Universidad Pedagogica y Tecnologica de Colombia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Actualidad Jurídica Ambiental is the property of CIEMAT, through its Centro Internacional de Estudios de Derecho Ambiental (CIEDA) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Sociohistórica: Cuadernos del CISH is the property of Universidad Nacional de La Plata and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In this paper, a new model is developed by referring to the literature on Dutch disease and rent-seeking for explaining how a natural resource boom in the energy sector decreases national income and induces a resource movement effect under a rent-seeking monopoly. In such a model, it is shown that the resource movement effect certainly occurs during the boom where labor inputs will move to the energy sector from the services sector. Moreover, the boom facilitates rent-seeking and decreases national income. [ABSTRACT FROM AUTHOR]

Copyright of Papers: Revista de Sociologia is the property of Universitat Autonoma de Barcelona and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Desafíos is the property of Colegio Mayor de Nuestra Senora del Rosario and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Tecnura is the property of Tecnura and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Scientia et Technica is the property of Scientia et Technica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Española de Sociología is the property of Federacion Espanola de Sociologia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Cuadernos del Centro de Estudios de Diseño y Comunicación is the property of Cuadernos del Centro de Estudios de Diseno y Comunicacion and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista de Investigación Agraria y Ambiental is the property of Revista de Investigacion Agraria y Ambiental and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Semestre Económico is the property of Sello Editorial de la Universidad de Medellin and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Tecnura is the property of Tecnura and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Electric mobility is a sustainable alternative that allows the reduction of energy consumption and the emission of polluting gases with respect to conventional mobility. There are projections that predict an increase in the use of electric vehicles. Thus, several lines of research deal with the characteristics of the integration of these new demands and the effects that will occur on electrical systems. The main goals of this paper are: (i) to determine the impact of a moderate insertion of public charging points on the network; (ii) to evaluate the penetration level of EVs of residential users for slow and semi-fast home charging modes (G2V), according to restrictions of operation variables from the grid; and (iii) to propose some management strategies for controlled recharging and the dual function of charging and supplying energy from the electric vehicles to the grid through their storage batteries (V2G). The obtained results show that the moderate incorporation of public charging points does not significantly affect the operability of the network. Furthermore, it is shown that the controlled recharging of electric vehicles manages to reduce the negative impacts on the electrical system under study, allowing higher levels of insertion and/or delaying investments in the electrical infrastructure. An operation mode with energy from the electric vehicles to the grid would allow displacing the peak generation characterized by its high levels of pollution. Nevertheless, this mode of operation makes the system more susceptible to operating within inadmissible ranges. [ABSTRACT FROM AUTHOR]

The benefits of implementing Demand Response (DR) programs in large consumers have been widely documented. However, it is still necessary to explore in more detail the impacts of the implementation of these programs in residential users on the benefits of the distribution system operators. In this paper, we determine the effects of Demand Response (DR) on the reconfiguration of a distribution system considering the consumption characteristics of residential users in Colombia. For this purpose, the demand curve of a typical residential user was constructed for Bogotá D.C., and measurements were taken to estimate the participation of this user in a DR program. In addition, an algorithm based on Particle Swarm Optimization is used as a solution strategy for the reconfiguration problem. The results show that a distribution system reconfiguration could significantly increase the revenues obtained by a Network Operator. However, it is shown that the reduction of energy losses obtained from the DR would not provide sufficient incentives for them to promote the participation of residential users in this kind of programs. [ABSTRACT FROM AUTHOR]

Today, the development of human life depends on the supply of energy obtained mainly from fossil fuels. This resource is limited and its availability finite. Solar energy can meet the needs of the global population. Concentrated solar energy uses a mirrored surfaces that reflects and concentrates the rays in a receiver that absorbs the solar energy transferring it as heat to the fluid that circulates inside it and that can be used in processes that need thermal energy. The efficiency of the system depends on the optical quality of the concentrating mirror. In this paper, the optical efficiency(ηop) of a prototype parabolic disk is determined using a calorimeter, which acts as a receiver, being the value ηop=0,71±0,02. The method is validated by applying a modified Hartmann's optical scanning test, the values wereηop=0,70±0,02 for the of intercept factor method and ηop=0,69±0,02 for the optical simulation. [ABSTRACT FROM AUTHOR]

This paper analyzes the conditions facing the oil refining industry in Mexico and the factors that shaped its overhaul in the context of the 2013 Energy Reform. To do so, the paper examines the main challenges that refining companies must tackle to stay in the market, evaluating the specific cases of the United States and Canada. Similarly, it offers a diagnosis of refining in Mexico, identifying its principal determinants in order to, finally, analyze its prospects, considering the role of private initiatives in the open market, as well as Petróleos Mexicanos (Pemex), as a placeholder in those areas where private enterprises do not participate. [ABSTRACT FROM AUTHOR]

In this paper, a conceptual model for technical microgrids conception applied to a case study in Colombia is presented. The model considers aspects as: medium voltage electrical system topology setting, preselection of generation technologies, electrical demand prioritization, generators location employing the voltage Stability Index (SI), operation strategies and capacity sizing of distributed generators, components modeling and the evaluation of microgrid performance in aspects as voltage profiles and optimal power management. The conceptual model developed was applied in a case study for the Valle del Cauca region, Colombia, which presents urban and agroindustry areas suitable for the research requirements. For the microgrid steady-state performance evaluation, the computational tool of power systems analysis Neplan® was used. [ABSTRACT FROM AUTHOR]

This paper addresses the use of Section 232 of the Trade Expansion Act and the International Emergencies Economic Powers Act (IEEPA), in the US trade policy of the presidency of Donald Trump, towards its North American partners. From a political economy approach and from addressing case studies, the article argues that these laws have been transformed from tools to deal with rival countries, to resources of power to obtain concessions from Canada and Mexico both in the commercial and commercial sphere. in other areas of your relationship. Specifically, for Section 232, the case of steel and aluminum tariffs against Canada and Mexico is addressed. In the case of the IEEPA, reference is made to the tariff threats filed by the United States against Mexico in 2019. Based on this, the article identifies the ways in which the United States authorities have reinterpreted the provisions of the laws to use them as resources that assert their market power in regional negotiations. At the end, the article explains in a general way, a strategic course available for Canada and Mexico, to counteract the contemporary use that the United States has made of its national security laws. [ABSTRACT FROM AUTHOR]

The shape memory alloys are metals that belong to a class of shape-memory materials. These kinds of materials can memorize their previous form when they are subject to stimuli such as electric, magnetic, and thermic variations. The metal alloys that exhibit this characteristic are commonly named "muscle wires" because their main objective is to generate motion without electric motors or coils. Published studies have demonstrated that, in the case of the muscle wires, their durability and reliability can decrease due a material overheating as a consequence of overcurrent. The design of a buck converter based electric energy supply system for muscle wires is presented in this paper. A control stage based on fuzzy logic is included in the system to regulate the current through the muscle wire. The electrical current adaptation to a maximum magnitude, specified by the muscle wire manufacturer, is achieved in the presence of disturbances, according to the simulation results of the proposed system. [ABSTRACT FROM AUTHOR]

Copyright of Acta Bioéthica is the property of Universidad de Chile, Centro Interdisciplinario de Estudios en Bioetica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Entramado is the property of Universidad Libre Seccional Cali and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Visión Electrónica is the property of Fondo de Universidad Distrital Francisco Jose de Caldas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This paper presents the design and implementation of an isolated microgrid developed in La Guajira, north of Colombia. It was designed through the collaboration and capacity building of the community itself. Several activities were developed by the research group in order to improve the technical design. With the objective of reaching a consensus in terms of the final desgin, several visits were made to the community. During the implementation, some new ideas on how to improve the design appeared. In any case, if the microgrid (that uses both solar and wind energy) would be replicated in any other location, we strongly recommend to include, from the beginning, the community needs and the ideas of its inhabitants. [ABSTRACT FROM AUTHOR]

Copyright of Papeles de Europa is the property of Universidad Complutense de Madrid and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Ingeniería Agrícola y Biosistemas is the property of Universidad Autonoma Chapingo and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The Electrified Mass Rapid Transit Systems (EMRTS) are one of the possible alternatives in solving mobility problems in urban and interurban areas. In this paper, we present the theory which allows modeling and determination of the EMRTS electric load, which serves as a base for the development of a computing model. The paper presents two examples of application: a tramway line and a subway line, from which we can observe the energy supply requirements of these EMRTS to the electric distribution system. [ABSTRACT FROM AUTHOR]

Copyright of DYNA - Ingeniería e Industria is the property of Publicaciones Dyna SL and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This paper presents a procedure to study the dynamics of the frequency of the interconnected system Ecuador-Colombia when a generation unit comes out of the system, and when one doesn't have the necessary information of the electric Colombian system, furthermore the paper presents the results obtained when this procedure is applying it to a real example. [ABSTRACT FROM AUTHOR]

Copyright of Energía y Computación is the property of Universidad del Valle and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of DYNA - Ingeniería e Industria is the property of Publicaciones Dyna SL and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Ingeniería y Universidad is the property of Pontificia Universidad Javeriana and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This paper presents the results of the study that evaluates the incorporation of FACTS technologies in the expansion planning process of the Colombian National Transmission System (NTS). The application methodology uses as starting point the optimization of the exploitation of the existing system by increasing its transmission capacity and it is based on steady-state analysis. This paper presents the results of the feasibility study for a wide application of FACTS systems in the Colombian Transmission System for improving transmission capabilities and reliability and security levels after year 2005. [ABSTRACT FROM AUTHOR]

Copyright of Revista de Estudios Internacionales Mediterraneos is the property of Taller de Estudios Internacionales Mediterraneos and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In view of the important role of trade union institutions in Mexico, the paper aims to present a study of three trade unions in the textile industry in the country, beginning in 1982 and ending in 1998. The objective of this analysis was to classify and explain the analogies and differences that these figures before the change in economic and political structures. Through a comparative method, the axis of similarities was forged, once each trade union organization was selected as a unit of analysis and various techniques, both qualitative and quantitative, were carried out in each one. By way of conclusion, the findings that form a common discourse constructed within a reality with high degrees of inactivity and demobilization are presented in a schematic way. [ABSTRACT FROM AUTHOR]

The bioeconomy suggests transforming economic systems in economies based on the use of biomass, this is a recent proposal within the so-called green economy and is intended to overcome dependence on fossil resources and offer solutions to global problems such as scarcity Food, energy supply and climate change. This paper aims to identify strengths (qualified human resources, infrastructure, investment in R & D) in Latin American countries so that through knowledge- based bioeconomics they can move towards Green economy. For this, a multivariate cluster analysis based on socio-economic, environmental and scientific-technological indicators is carried out to compare the different capacities of the countries in that region. [ABSTRACT FROM AUTHOR]

Copyright of Revista de Investigación en Salud VIVE is the property of Revista de Investigacion en Salud VIVE and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Estudios Económicos is the property of El Colegio de Mexico AC and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Ciencia y Poder Aéreo is the property of Escuela de Postgrados de la Fuerza Aerea Colombiana and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This paper is the continuation of the one published in Pastos y Forrajes, no. 1, 2016, in which the general bases of a selection of currently internationally available methodologies for the dynamic evaluation of production systems, are offered. This part describes the methodologies Integral Energy Evaluation (EMERGY) and Systems' Trajectory; and also a concrete example is provided of the application of the principles of these methods in the construction of an integral evaluation model of farming systems, called GAMEDE. [ABSTRACT FROM AUTHOR]

Process Integration (PI) is a tool that for over forty years has demonstrated its strength to provide optimal solutions to complex problems. The interaction of exchange systems of energy and water networks is a typical case of such problems. The gradual increase in the consumption of water and energy has determined the development of methodologies that take into account the simultaneous integration of these resources. This paper aims to present a literature review related to the simultaneous integration of water and energy. First, general items related to this research field are presented, emphasizing the approaches to simultaneous integration (Pinch Analysis and Mathematical Programming). Some recent cases of studies, demonstrating the strength of these tools mainly focus to sugar industry, are also presented. Finally some of the challenges to be faced by the simultaneous integration of water and energy for the diversification of the Cuban sugar industry are presented. [ABSTRACT FROM AUTHOR]