Enfoque UTE

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Authors: Henrry Ricardo Cabrera, Alberto Medina León, Dianelys Nogueira Medina, Quirenia Núñez Chaviano

The present article relates concepts and knowledge on the international tendency as for the administration and improvement of the managerial processes. In the methodology review and analysis published online access, indexed database and other Web of Science is considered to identify those aspects of interest that influence the performance of companies and their processes. The main findings indicate that today any attempt to formalize the management and process improvement must contain theoretical assumptions about process management and system integration, it is also imperative to accept the basis of good management practices, treated with a focus process, highlighted in the selection process, the identification and assessment of opportunities for improvement, indicators and its relationship with business strategies

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Authors: María Laura Stronguiló Leturia, Lynet Milagros Chacón Febres

The aim of this work is to select residual biomass from the Arequipa Region for the production of biofuels (biodiesel, bioethanol and biogas). In each case, the initial point is a matrix based on products with residual biomass available in the region, from the agricultural and livestock sectors, information that was obtained from the regional Management of Agriculture web site. Specific factors of the resudue that will be used as raw material for each biofuel production would be considered for the selection process. For the production of biodiesel it is necessary to start from the oil extracted from oilseeds. Regarding obtaining bioethanol, it requires that the residual biomass has high percent of cellulose. With regard to the generation of biogas, we will use animal droppings. Finally, the raw materials selected are: squash and avocado seeds for biodiesel, rice chaff and deseeded corncob for bioethanol and cow and sheep droppings for biogas

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Authors: Aura Navas de García, Rosa E. Reyes Gil, Luis E. Galván Rico

Concrete plants are important to the economy of a country. However, this industry causes major environmental impacts in each of the steps involved in the manufacturing process of concrete production which are analyzed in this research. In addition, the perception of experts and workers in the area, about the environmental impacts associated with the activity of a producer of concrete was evaluated. The methodology used for the analysis of steps in the production process was as kind documentary. For to evaluate perception of environmental impacts the methodology used was descriptive non experimental, using interviews with workers related to the manufacturing process of the concrete. Among the major identified environmental impacts are dust emissions and improper handling of effluents, hazardous and non-hazardous materials. Among the proposals put forward to address these impacts include: installation of dust collectors, settling tanks, management plans for hazardous and non-hazardous materials, among others. An analysis of the results incorporating the principles of corporate social responsibility for improving or minimizing adverse impacts are detected proposed

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Authors: Christian Tipantuña, José Antonio Estrada, Juan Carlos Estrada, Carla Parra

This paper provides a detailed description and all the procedures involved in designing a power amplifier using microstrip technology and the design software Microwave OfficeTM. Specifically, the design is oriented to build an amplifier with central frequency at 14 GHz, but the same fundamentals and principles could be applied in the whole range of radio frequency. For the design, a MESFET transistor and simultaneous input and output matching networks are considered. The values of the parameters and the simulation for every stage are computed and performed using AWR Microwave OfficeTM. At the end of the document, a fully functional circuit layout represented in 2D and 3D is shown with all their complementary elements