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phase selection » mass selection (Expander búsqueda), chart selection (Expander búsqueda), lane selection (Expander búsqueda)
phase selection » mass selection (Expander búsqueda), chart selection (Expander búsqueda), lane selection (Expander búsqueda)
1
artículo
Publicado 2017
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The development of new processes in the textile industry entails designing methodologies to select adequate supplies that fit these new processes requirements. This paper presents a methodology used to select a textile binder that fulfill technical specifications of a new process to produce nonwoven fabrics, highlighting mainly its ability to form a protective film on the textile fibers and cohesion them without staining, weakening or breaking them. The proposed methodology involves three major phases: (1) consulting textile experts, (2) laboratory tests, and (3) factor weighting. The results indicate that there are two products that can be used in this new process: Arkofil and Size plus AC.
2
artículo
n 1999, global copper production is based on a 80 % in low-grade ores , the metal content is below 2 %. This has focused research efforts - to develop alternative ways to cough pyrometallurgical processes such as hydrometallurgical extraction processes . Since the advent of the first commercial extractants in markets 30 years ago (LIX 63 ), research was directed towards the study of properties such as selectivity , kinetics and solubility at different pH values . Copper, due to its electronic configuration and their different oxidation states , complexes in which the ligands have to have specific selectivity and stability in the organic phase. In the experimental part of this work , complexes of Cu ( I) and Cu ( II ) with anionic and neutral chelating ligands according to their electrochemical properties were studied.
3
artículo
n 1999, global copper production is based on a 80 % in low-grade ores , the metal content is below 2 %. This has focused research efforts - to develop alternative ways to cough pyrometallurgical processes such as hydrometallurgical extraction processes . Since the advent of the first commercial extractants in markets 30 years ago (LIX 63 ), research was directed towards the study of properties such as selectivity , kinetics and solubility at different pH values . Copper, due to its electronic configuration and their different oxidation states , complexes in which the ligands have to have specific selectivity and stability in the organic phase. In the experimental part of this work , complexes of Cu ( I) and Cu ( II ) with anionic and neutral chelating ligands according to their electrochemical properties were studied.
4
artículo
Publicado 2022
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In this article, the Design Thinking technique will be used to solve and evaluate the problem of the selection of software quality metrics, considering some techniques for the collection of ideas that can support the development of a solution purpose to the problem that in this case is the quality assurance based on the evaluation metrics defined in the current known standards. All this is possible thanks to the support of web tools that provide templates to cover the phases of Design Thinking. The details of the phases are also made starting with the Empathizing phase followed by Define, Devise, Prototype, Test and finally arriving at the results and conclusions found after the whole design thinking process. The results are expected to help build quality software and be used in a real project and in its different stages making the software successful in the market.
5
artículo
Publicado 2020
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A solar thermal accumulator is designed and built using the phase change principle, to optimize the drying process in a familiar solar dryer, in an additional period to the cessation of the incidence of solar radiation; the phase change material selected is the commercial paraffin, whose thermal properties have been characterized by the KD2 Pro meter. The melting temperature of the paraffin (53 oC) is around the operating temperature of the medium temperature solar dryer. The solar thermal accumulator is characterized by being modular, consisting of twelve cylindrical units of recycled aluminum, where each unit contains 200 g of paraffin and incorporates meshes with aluminum fins to improve the flow of heat to the outside and optimize its transfer to the air. As a result, the additional drying time has been increased by an order of 2 hours without intervention of solar radiation, maintai...
6
artículo
Publicado 2020
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A solar thermal accumulator is designed and built using the phase change principle, to optimize the drying process in a familiar solar dryer, in an additional period to the cessation of the incidence of solar radiation; the phase change material selected is the commercial paraffin, whose thermal properties have been characterized by the KD2 Pro meter. The melting temperature of the paraffin (53 oC) is around the operating temperature of the medium temperature solar dryer. The solar thermal accumulator is characterized by being modular, consisting of twelve cylindrical units of recycled aluminum, where each unit contains 200 g of paraffin and incorporates meshes with aluminum fins to improve the flow of heat to the outside and optimize its transfer to the air. As a result, the additional drying time has been increased by an order of 2 hours without intervention of solar radiation, maintai...
7
artículo
The study sample is a refractory ore with an average grade of 19.31 g/TM provided by artisanal miners in the area and Yanga from the province of Canta, Lima. The mineralogy of the sample showed the presence of the following minerals: Gold, Chalcopyrite, covellite, chalcocite, sphalerite, pyrite, arsenopyrite, magnetite, hematite, goethite, rutile and bargains as photos indicate 1, 2, 3, 4, 5 and 6. The minerals found in larger volumes are bargains, Pyrite and Chalcopyrite in photo 6 are interlaced with gold particles chalcopyrite and pyrite, with the larger size of 17 microns of gold. In the first phase were carried out metallurgical testing with the hub centrifugal Knelson with 5 kg of sample, gravitational force of 60 G’s and water pressure of 3 psi, for different particle sizes as 52.25%, 60.66%, 67.13% and 74.64% - 200 mesh. The metallurgical balances indicate that the best test is...
8
artículo
The study sample is a refractory ore with an average grade of 19.31 g/TM provided by artisanal miners in the area and Yanga from the province of Canta, Lima. The mineralogy of the sample showed the presence of the following minerals: Gold, Chalcopyrite, covellite, chalcocite, sphalerite, pyrite, arsenopyrite, magnetite, hematite, goethite, rutile and bargains as photos indicate 1, 2, 3, 4, 5 and 6. The minerals found in larger volumes are bargains, Pyrite and Chalcopyrite in photo 6 are interlaced with gold particles chalcopyrite and pyrite, with the larger size of 17 microns of gold. In the first phase were carried out metallurgical testing with the hub centrifugal Knelson with 5 kg of sample, gravitational force of 60 G’s and water pressure of 3 psi, for different particle sizes as 52.25%, 60.66%, 67.13% and 74.64% - 200 mesh. The metallurgical balances indicate that the best test is...
9
artículo
Publicado 2018
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Objective: To determine and interpret the perception of the graduates about the teaching-learning process in a School of Private Nursing. Materials and methods: The research approach is mixed. The design is concurrent according to the time of the methods and quant / which according to the priority. The sample consisted of 120 graduates in the quantitative phase, of which 8 were selected for the qualitative phase. The instrument used in the quantitative phase was a Likert scale of 30 items, validated by expert judgment. For the qualitative phase, a semi-structured interview was used, which allowed grouping the responses into categories. Results: 57% of graduates perceive the teaching - learning process as good, followed by 26% as regular. As for the 4 dimensions, most perceive it as good. In the curricular plan dimension the graduates expressed disagreement regarding the curricular plan, ...
10
artículo
Publicado 2022
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Objective. To determine the relationship between results-based management and the public procurement processes carried out by the professionals of the Rural Agricultural Productive Development Program (AGRORURAL) of the Huánuco zonal directorate, 2019. Methods. The research is characterized by being of a basic type, with a descriptive-correlational level and a non-experimental design. The Public Management Theory focused on performance budgeting and government contracting is used. For data collection, a survey questionnaire was applied to professionals and officials of AGRORURAL-Huánuco; based on this, Spearman correlation coefficients were estimated. Results. There is evidence of a positive relationship between results-based management and contracting processes (rho=0.71). Likewise, a positive relationship was found between results-based management and the programming phase (rho=0.74)...
11
artículo
Publicado 2023
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Gamification is the use of game elements to promote motivation, increase participation, and enhance the teaching and learning process. The purpose of this study was to develop a methodological strategy based on gamification to reinforce the teaching and learning process of the English language at the upper basic level of the Charapotó Educational Unit. A methodology with a socio-critical approach, a mixed approach, and a descriptive research type with a non-experimental design were used. The population consisted of 3 English teachers and 295 upper basic students. The sample included all the teachers, and through a simple random probability sampling analysis, 167 students from the Charapotó Educational Unit in the province of Manabí, Ecuador, were selected. Techniques such as observation, surveys, interviews, and bibliographic analysis were employed, considering the dimensions of teach...
12
artículo
Publicado 2025
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Implementing a digital process for letters rogatory and judicial assistance requests in Ecuador requires a strategic approach to enhance efficiency and transparency. First, it's essential to revise the legal framework to validate digital procedures. A secure and centralized online platform should be developed, incorporating encryption and digital signatures. Coordination among institutions like the Judicial Council, Ministry of Foreign Affairs, and Public Prosecutor's Office is vital. Training programs must be implemented to prepare staff and legal professionals. Integration with international systems will ensure interoperability and compliance with global standards. A pilot phase can help test the system in selected jurisdictions before national deployment. Stakeholder engagement and awareness campaigns will foster broader acceptance. ongoing monitoring, user feedback, and continuous up...
13
tesis de grado
Publicado 2025
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Within the supply chain, every stage of the logistics process plays a vital role—from the start of production to the delivery of the product to the final customer. However, storage management stands out as one of the most critical phases. Inadequate storage practices or poor SKU control can result in substantial financial losses for a company. This scientific article presents a diagnostic analysis of a logistics operator specializing in the distribution and storage of pharmaceutical products. During the evaluation, several weaknesses were identified in the reception and order picking processes. As a result, various tools were implemented to enhance operational efficiency. The study explored key questions such as: What are the determining factors for selecting a logistics process systematization model? And what are the implications and effects of its implementation? The chosen tools inc...
14
artículo
Publicado 2022
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Polyribosyl-ribitol-phosphate (PRP) from Haemophilus influenzae type b (Hib) is an active immunizing molecule used in the production of the vaccine against H. influenzae, and industrial production could contribute to satisfying a world demand especially in developing countries. In this sense, the aim of this study was to establish a scale-up process using the constant oxygen mass transfer coefficient (kLa) such as the criterion for production of PRP in three different sizes of bioreactor systems. Three different kLa values (24, 52 and 80 h−1) were evaluated in which the biological influence in a 1.5 L bioreactor and 52 h−1 was selected to scale-up the production process until a 75 L pilot-scale bioreactor was achieved. Finally, the fed-batch phase was started under a dissolved oxygen concentration (pO2) at 30% of the saturation in the 75 L bioreactor to avoid oxygen limitation; the p...
15
artículo
Publicado 2022
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Polyribosyl-ribitol-phosphate (PRP) from Haemophilus influenzae type b (Hib) is an active immunizing molecule used in the production of the vaccine against H. influenzae, and industrial production could contribute to satisfying a world demand especially in developing countries. In this sense, the aim of this study was to establish a scale-up process using the constant oxygen mass transfer coefficient (kLa) such as the criterion for production of PRP in three different sizes of bioreactor systems. Three different kLa values (24, 52 and 80 h−1) were evaluated in which the biological influence in a 1.5 L bioreactor and 52 h−1 was selected to scale-up the production process until a 75 L pilot-scale bioreactor was achieved. Finally, the fed-batch phase was started under a dissolved oxygen concentration (pO2) at 30% of the saturation in the 75 L bioreactor to avoid oxygen limitation; the p...
16
artículo
Publicado 2025
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Integrating the prescriptive and linear approach of NSD with the non-linear approach of service design can enhance value cocreation orientation in service innovation. Then, the objectives of this study are to explore these complementarities, propose an integrated model that enhances value cocreation in service innovation, and evaluate this model. The methodology involved a systematic literature review, focus group, and brainstorming session to propose the model, followed by evaluation through three case studies and expert interviews. As results, the model’s main feature is the development of each service prerequisite through the service design cycle, prescriptively incorporating customer input throughout the service innovation process. Expert interviews and model application indicated that the model achieved its objectives, as the development of each service element was based on a deep...
17
artículo
Publicado 2025
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The article considers the built heritage as a product of the management of public works by the State during the 19th century. The objective is to show that for the execution of the public works in this period, the State established a procedure for managing the work, using the bases of Competitions and the systems experts. The article is descriptive-explanatory and uses a qualitative approach. It selects works from the period of the guano boom, studies the bases of competitions and synthesizes the information in tables establishing phases of each work. The result has been a diversity of participants, items, specifications, materials, techniques, units of measurement and that there was no single management procedure. It is concluded that the State, during the modernization process, established a system for managing public works, which was applied with variations according to the applicant ...
18
objeto de conferencia
Publicado 2020
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RESUMEN El presente artículo corresponde al rediseño de procesos para la gestión de recursos humanos de la empresa Grupo Mundo Soluciones Empresariales. La investigación ha seguido un enfoque Pre-Experimental, donde se utilizaron técnicas de recolección de datos como análisis documental y de archivos, entrevista y observación directa y sus respectivos instrumentos como son la ficha de análisis documental, guía de entrevista y ficha de observación de procesos. Para el rediseño, se aplicó la metodología BPM, que consta de las siguientes fases: descubrimiento y simplificación, captura y documentación, publicación y animación, diseño y mejora, generación y ejecución y monitoreo y gestión. Así, se obtuvieron como resultados un ahorro de 77% en el proceso de Reclutamiento y Selección, y 39% en la Gestión de Incorporación, así como la reducción de tiempos por proceso...
19
tesis de grado
Publicado 2024
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Objetivo: Evaluar la influencia del rediseño de procesos en el control de medicamentos del hospital “Santa María del Socorro” de la ciudad de Ica. Método: el tipo de investigación que se siguió fue aplicada tecnológica, de enfoque cuantitativo y corte transversal, con un diseño experimental puro. La metodología de la investigación sigue las fases del rediseño de procesos sin la automatización, lo que comprende: a) diseño del proceso se realiza el diseño del proceso pasando desde un diseño AS-IS, en este modelo se analiza y se determina los cambios y mejoras y b) se rediseña el proceso obteniendo el diseño TO-BE. Para lograr ello se recopilo información mediante entrevistas y observación in situ del flujo de trabajo de todas las áreas involucradas directa o indirectamente en este proceso. La muestra estuvo conformada por 61 pacientes que hacen uso de los servicios d...
20
artículo
Publicado 2025
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In recent years, following the COVID-19 pandemic, the demand for outsourcing processes in Information Systems and Technology (IS/IT) has intensified globally and continues to grow, according to market studies from prestigious international entities. However, in the Peruvian public sector, decision-making regarding IS/IT outsourcing still lacks formal methodologies to properly evaluate its feasibility and risks. This article proposes a framework to support outsourcing decisions by applying the Analytic Hierarchy Process (AHP). The research, qualitative and deductive in nature, combined a literature review with the application of the AHP model in a reference public institution. The framework is structured in four phases: identification of prerequisites, definition of the decision model, risk assessment, and selection of projects to be outsourced. For validation, four projects from the Nati...
