Recent Submissions

  • Development of a turbine spirometer prototype and signal digitalization

    Chavez, Heyul; Herrera, Carlos; Tejada, Felix Llanos; Mayra, Jorge Bazan; Moguerza, Javier M.; Raymundo, Carlos (Institute of Electrical and Electronics Engineers Inc., 2023-01-01)
    The present research is part of the project called PHUKUY, which is a low-cost portable digital spirometer prototype designed for remote monitoring of patients with COPD and COVID-19. It also includes additional sensors for improved patient monitoring. This article presents the development of the spirometry module. A turbine spirometer was chosen for its small and lightweight size, easy cleaning and maintenance, and low-cost implementation, which allows for portability. The airflow was successfully digitized, and its direction was detected using a microcontroller, a pair of IR receivers and emitters. This information was then sent via Bluetooth to be displayed in real-Time on a mobile phone. For a 3-liter calibration, a maximum error of ±0.115 liters and a standard deviation of 0.051 were achieved.
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  • Application of Lean Manufacturing to Improve the Duct Production Process of an Air Conditioning Company in the Year 2021

    Peralta, Anthony; Valverde, Leysi; Salvador, Rebeca; Quispe, Grimaldo; Dominguez, Francisco; Raymundo, Carlos (Seventh Sense Research Group, 2023-03-01)
    The article's objective was the implementation of the lean manufacturing methodology in the production process of an air conditioning metal processing plant. For this, the methodology of 2 phases was used. The company and its current operation, structure, products, and work plan are presented in the first phase, demonstrating its main deficiencies. In phase 2, an improvement plan was made with lean manufacturing tools applied to the deficit of phase 1. As a result of the implementation of these tools, 64%, 80%, 71% and 50% of space in the measuring, cutting, bending, and welding stations, respectively, and an improvement in production times were obtained. Based on the study results, it is concluded that the application of lean manufacturing benefited the company by drastically improving its production process and work environment.
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  • The Demand Driven MRP Implementation in Complex Manufacturing Industries: A Systematic Literature Reviews

    Benavente, Daniel; Peralta, Stephano; Quispe, Grimaldo; Moguerza, Javier; Raymundo, Carlos (Seventh Sense Research Group, 2023-03-01)
    Since its creation in 2011, the DDMRP planning method has been catalogued as an important tool to deal with the high variability of the environment, especially in demand, since it allows modifying inventory levels without neglecting the level of service and quality of the products. However, the volume of research available on this method is small, even more, so those considering the application in complex industries. The objective of this research was to analyze the available literature about the application of the model in complex industries, considering its application trends, buffer positioning and improvement target factors. In addition, it allowed identifying areas that other researchers should study in the future. This systematic review scrutinized different applications of the method in complex industries worldwide by analysing literature in different languages. This research identified that certain characteristics of the DDMRP require further study, especially real and simulated applications. On the one hand, more research is required in applying the last two phases of the method (planning based on demand and visible and collaborative execution), as well as the need to deepen in economic terms and the possibility of combining it with other similar or complementary methods. Thanks to this literature review, it was possible to recognize the impact of the implementation of the DDMRP in complex industries, identify the factors that influence its effectiveness and describe the need to delve into various issues that have not yet been analyzed in depth, seeking to understand the best way the studied method.
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  • Manejo de heridas traumáticas de difícil cicatrización con colgajos microvasculares.

    Ciudad, Pedro; Vargas, Maria I; Castillo-Soto, Ana; Sanchez, Jefferson R; Manrique, Oscar J; Bustos, Samyd S; Forte, Antonio J; Huayllani, Maria T; Soto, Zoila; Grández-Urbina, J Antonio (MA Healthcare Ltd, 2020-10)
    Objective: Present different flap alternatives when performing microvascular free-flap reconstruction in acute hard-to-heal wounds. Method: A retrospective review of patients whose acute hard-to-heal wounds were treated with microvascular free-flap reconstruction. Data on demographics, wound aetiology, diagnostic, previous treatment, free-flap type, free-flap size, complications and follow up were analysed. Results: A total of 20 patients received microvascular free-flap reconstruction. The median age was 39.5 years. Twenty free-flap reconstructions were performed. These included: 3 cross-leg free flap, 1 cross-leg vascular cable bridge flap, 2 fibula osteocutaneous flap, 6 anterolateral thigh (ALT) flap, 3 thoracodorsal artery perforator (TDAP) flap, 3 fasciomyocutaneous flap, and 2 femoral artery fasciocutaneous flap. A patient required microvascular anastomosis due to hematoma; the rest did not present complications during their postoperative. Previous treatment included negative pressure wound therapy (12 patients) and surgical debridement with silver hydrogel dressings (8 patients). Conclusion: Hard-to-heal wounds can be unresponsive to traditional wound healing practices or local flaps. They often require free-flap reconstruction, using tissues similar to those compromised. Microvascular techniques can be an effective alternative. CONFLICT OF INTEREST None.
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  • Gaston Acurio: Business model innovation and creation of a Peruvian gastronomic brand

    Ontaneda, Elizabeth; Quiroga, Guillermo (Emerald Group Publishing Ltd., 2020-04-17)
    No presente resumen
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  • Gaston Acurio: business model innovation and creation of a Peruvian gastronomic brand

    Ontaneda, Elizabeth; Quiroga, Guillermo (Emerald Group Publishing Ltd., 2020-05-07)
    Learning outcomes: Identify the types of innovation that Gastón Acurio’s proposal has created. Understand the key strategies developed to grown and consolidate Peruvian food as a category internationally and as part of Acurio’s business. Identify elements of the business model using the business model canvas. Explain how elements of a business model are related, reinforce each other and drive results. Evaluate strengths, opportunities, weaknesses and threats to a business model. Analyze changes to the model that can capitalize upon or mitigate these factors based on evidence. Case overview/synopsis: Gastón Acurio is a successful Peruvian chef and restauranteur who was key in shaping the country’s gastronomic industry. His innovative business model distinguished him from other Peruvian restauranteurs and allowed him to grow and take advantage of opportunities in Peru and internationally. His success and growth attracted US$52m in investment funding. However, his model’s challenges surfaced during a difficult restaurant launch exacerbated by a harsh review in the New York Times. Students must identify and analyze the key elements of Acurio’s business model to evaluate and propose changes to better take advantage of its strengths and opportunities, as well as to mitigate weaknesses and threats. Complexity academic level: Master’s or MBA. Supplementary materials: Teaching Notes are available for educators only. Subject code: CSS 12: Tourism and hospitality.
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  • Electromechanical Device for Temperature Control of Internal Combustion Engines

    Mamani, A.; Quispe, G.; Raymundo-Ibañeez, C. (IOP Publishing Ltd, 2019-11-25)
    Internal combustion engines are the most commonly used engines in the automotive world. However, these engines lack an overheating prevention system against cooling system failures when they exceed their normal operating temperature. Less experienced drivers (users) usually do not notice overheating until the engine stops, generating economic expenses in engine repairs. As such, this paper describes the design and construction of an electromechanical device to prevent engine overheating. This device is installed in a vehicle and operates independently from the electronic control unit (ECU); it records the coolant temperature and controls air admission to the engine of the vehicle in which it is installed. In addition, a new Arduino-based card will receive signals from a temperature sensor as input and process them according to its programming. Then, it will send signal outputs to the actuators: A servomotor, monitor, LED display, and buzzer. To control the intake flow, a butterfly valve is used with the servomotor. This valve partially or totally restricts the engine airflow, based on the temperature programmed for the Arduino, thus protecting the engine from overheating.
    Acceso abierto
  • Ventilation System Simulation Model at a Mine

    Artica, I.; Quispe, G.; Raymundo-Ibañeez, C. (IOP Publishing Ltd, 2019-11-25)
    This research project modeled and simulated a ventilation system at a Mining Concession, obtaining real-time information regarding the fans used to ventilate the mine. The simulation was developed using the VENTSIM 5 software, which also helped define the number of fans and the operating parameters required, field information, mine dimensions, the mining method, production, geothermal gradient, gas emission, air stream, and air pressure. In addition, the results from software operation revealed the need to open chimneys and use fans. Furthermore, the results also suggest that a specialist dedicated to ventilation and fan maintenance must be hired to formalize mining operations as per the Occupational Safety and Health Mining Regulations from Executive Action No. 024-2016-EM as this Mining Concession is currently operating without license.
    Acceso abierto
  • Controlled Trim-Blasting Model to Improve Stability and Reduce Vibrations at a Production Gallery of the San Ignacio de Morococha S.A.A. Mining Company

    Camallanqui-Alborque, C.; Quispe, G.; Raymundo-Ibañeez, C. (IOP Publishing Ltd, 2019-11-25)
    This paper presents a blasting method called controlled trim blasting, in which the rock mass of an unstable gallery where high levels of vibration have been detected is analyzed. This methodology comprises a drilling mesh with two-contour gallery assessment, producing its drilling machines and determining the type of explosive used and burden and spacing, which will be detonated after the internal blasting. Further, the internal blasting will possess its drilling machines, burden, spacing, and a second type of explosive. The separation of the gallery into smaller parts will improve the blasting, as verified in the recorded simulation. In addition, the rock-mass stability improves because the explosives used in the perimeter of the gallery are low-power with mild detonation pressure, which does not generate high levels of vibration. This is a practical and efficient method in areas where the rock mass is not good or there is a mixture of rock types.
    Acceso abierto
  • Heavy Object Lifting Platform to Correct Human Balance and Posture

    Raymundo, F.; Quispe, G.; Raymundo-Ibañeez, C. (IOP Publishing Ltd, 2019-11-25)
    This research document on technological development is aimed at workers in small companies, those that are developing well and soon to emerge as companies that will be positioned at the top of their labor sector. Starting from the problem at present with respect to the bad manipulation of loads it is arranged to solve the problem with established objectives to try to correct the corporal posture at the time of lifting an object with a machine that replaces the functions of the worker. The design and the solution was made based on the requirements of the worker, workers who have the need to load objects at a certain height, here the man-machine relationship, demands and desires that help to achieve the general objective are analyzed. In addition, it has the main function of this machine: To lift heavy objects of up to 150 kg of mass, this due to the implementation of a hydraulic piston in the lifting platform. The appropriate solution is an adaptation of a platform in the form of a truck forming an angle of 47.17 between the structure of the truck and the horizontal surface, this position is the most adequate so that the back does not suffer injuries during the handling of loads at work. The results give assurance that it is a machine of reliability and easy handling since it only requires an operator to control the objects and a flat position on the back without damaging the spine.
    Acceso abierto
  • Occupational Health and Safety Management Model for Mining Contracts

    Cano, Yakelin; Quispe, Grimaldo; Chavez, Heyul; Mamani-Macedo, Nestor; Raymundo-Ibañez, Carlos; Dominguez, Francisco (Springer, 2020-01-01)
    The importance of an occupational health and safety management system (OHSMS) in a mining contract allows the establishment of guidelines to prevent and mitigate accidents that may occur in mines and in exploration areas. Such guidelines are integrated to ensure compliance with regulations with respect to the mining activity (DS 024-2016-EM). For developing a model, the literature was initially reviewed (scientific articles and research studies were used as the background), development techniques were established, and an OHSMS was proposed, with prior evaluation from the contractor. Subsequently, this study presents the general requirements, planning, implementation, verification, and the corresponding review by the appropriate authority. Finally, the model is established, supported by tables that will report the current state of the company and the implementation process. This study concludes with the execution of OHSMS in case of mining contracts.
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  • Productivity model focused on six sigma and lean manufacturing to improve the quality of service in smes in peru

    Cardenas, Luis; Zapata, Gianpierre (Springer, 2021-01-01)
    In the Peruvian market there is a great demand for the improvement of the service and quality of the products, that is why many SMEs look for low-cost alternatives that allow them to optimize their activities and thus be able to assure the quality of the service. The problem is that there are many difficulties when implementing tools or techniques due to high costs or lack of knowledge, therefore a productivity model is proposed focused on six sigma and lean manufacturing methodologies in order to adapt the needs of SMEs with 4 phases can analyze, design, implement and monitor requirements in order to reduce mismanagement of service quality, cost savings and decrease product returns.
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  • Process management model aligned to the civil service law in public entities of Peru

    Cardenas, Luis; Zapata, Gianpierre (Springer, 2021-01-01)
    In Peru, under the framework of the National Policy for the Modernization of public management by 2021, it is intended that state institutions enter the Civil Service Regime that seeks to continuously improve the public administration in order to avoid disorder in hiring, remuneration excessive, breaches of the rights of the servers, among others, which are currently causing delays and poor service to citizens. For this reason, a management model is proposed that allows integrating the guidelines set forth by the Law of Civil Service and the process improvement techniques that will allow the current situation to be identified, prioritizing which are the critical processes and thus being able to define an improvement plan integrating the different areas within the institution.
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  • Editorial

    Grimaldo, Mirian (Universidad Peruana de Ciencias Aplicadas (UPC), 2016-12)
    Editorial
    Acceso abierto
  • Editorial

    Manzanares Medina, Eduardo (Universidad Peruana de Ciencias Aplicadas (UPC), 2017-12)
    Editorial
    Acceso abierto
  • Calidad de vida profesional y sueño en profesionales de Lima

    Universidad Peruana de Ciencias Aplicadas (UPC) (Elsevier B.V., 2015-03-03)
    El objetivo de la presente investigación es determinar la relación que existe entre calidad de vida profesional y sueño en un grupo de estudiantes de posgrado de Ciencias de la Salud, mediante un diseño correlacional, en una muestra conformada por 198 participantes. Los instrumentos utilizados fueron la Escala de Calidad de Vida Profesional CVP-35 de Cabezas (1998) y un cuestionario de sueño y reposo diseñado para el presente estudio. Se encontró correlación entre calidad de vida profesional y sueño en el grupo de edad de 31 a 40 años (0.26). Es probable que este grupo valore el sueño como aspecto importante para su calidad de vida profesional, lo cual podría estar influyendo en su desempeño laboral. Copyright © 2013, Fundación Universitaria Konrad Lorenz. Publicado por Elsevier España, S.L.U. Este es un artículo de acceso abierto distribuido bajo los términos de la Licencia Creative Commons CC BY-NC-ND (http://creativecommons.org/licenses/by-nc-nd/3.0/).
    Acceso abierto
  • Participación en organizaciones de base de un sector en el asentamiento humano Manchay del distrito de Pachacamac

    Marcelo Torres, Nohemí Estefani; Mendoza Vega, Catherine Julieth; [email protected] (Universidad Peruana Cayetano Heredia (UPCH), 2014-08-04)
    Se realizó un estudio cualitativo de diseño fenomenológico en el que intervinieron 12 dirigentes de las organizaciones de base de un Asentamiento Humano (AA.HH.) del distrito de Manchay. A través de la entrevista y grupos focales se investigaron las principales razones de participación comunitaria; los datos obtenidos fueron analizados a partir de la técnica de análisis de contenido, para posteriormente realizar la triangulación de datos. En el presente artículo se exponen los resultados y los argumentos brindados por los participantes; finalmente se discuten los principales hallazgos acerca del estudio en función de cuatro aspectos: elementos motivadores de participación, formas de participación, percepción como comunidad y percepción hacia el agente externo.
    Acceso abierto
  • El consentimiento informado en las publicaciones latinoamericanas de Psicología

    Universidad Peruana de Ciencias Aplicadas (UPC) (Universidad del Rosario, Colombia, 2014-06-10)
    El propósito fue determinar si las publicaciones psicológicas incluyen el consentimiento informado en el procedimiento de sus investigaciones. Se analizaron 1924 artículos de investigaciones empíricas, de ocho países de América Latina, publicados entre los años 1994 y 2012 en revistas indexadas en el catálogo de Latindex. La obtención del consentimiento informado se incrementó muy irregularmente en el año 2012; sin embargo, hay un alto porcentaje de publicaciones que no lo obtuvieron. Los países que contemplan el consentimiento informado en sus códigos de ética tienden a su mayor aplicación. Consecuentemente, no solo es necesario normar el consentimiento informado sino también promover la reflexión crítica de la dimensión científica de la Psicología en un marco deontológico y ético, desde la formación profesional.
    Acceso abierto