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https://purl.org/pe-repo/ocde/ford#2.02.04
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1
artículo
Publicado 2019
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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 act...
2
tesis de grado
Publicado 2019
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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 act...
3
artículo
Publicado 2024
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El objetivo del estudio fue evaluar el efecto de un aislante térmico para la reducción de la hipotermia intraquirúrgica en caninos y felinos en la Unidad Didáctica Clínica Veterinaria, UNISARC (Risaralda, Colombia). Se tomaron datos de temperatura preoperatoria e intraoperatoria en 200 pacientes (140 caninos y 60 felinos) sometidos a ovariohisterectomía u orquiectomía. Se analizaron las variables especie, sexo, temperatura corporal con y sin uso de aislante, y temperatura en periodo preoperatorio e intraoperatorio de los pacientes. No se observaron diferencias significativas en el empleo del aislante térmico en los pacientes caninos (p>0.05), pero lo hubo en los pacientes felinos (p<0.01) a favor del uso del dispositivo.
4
artículo
Publicado 2022
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Currently, the use of wearable devices is booming: both children and adults have incorporated this type of device in addition to cell phones into their day-to-day lives, which today are another extension of the human being. This research reviews what wearable devices are, their use, and the risks they imply for the user in terms of privacy and security. The risk identification and control methodology was chosen from the results of a scoping review in the relevant literature.
5
artículo
Publicado 2022
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Currently, the use of wearable devices is booming: both children and adults have incorporated this type of device in addition to cell phones into their day-to-day lives, which today are another extension of the human being. This research reviews what wearable devices are, their use, and the risks they imply for the user in terms of privacy and security. The risk identification and control methodology was chosen from the results of a scoping review in the relevant literature.
6
artículo
Publicado 2012
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In this work we make the design and testing of a new mechanical element coupled to the vane of a small wind turbine, such that self-regulates and controls the instantaneous power generating wind during overspeed. The rural coast an andean highlands of Peru have high wind potential and on the contrary zero electrical services, in this scenario the provision of electricity by small wind turbines is a strategy solution. One disadvantage of the winds from these areas is its high speed variation, whose adverse effect on the turbine generator is the premature destruction magnet generator winding and turbine blades breakage. Tests were performed on the Wind Tunnel Energy Laboratory- Mechanical Engineering Faculty, Universidad Nacional de Ingeniería-Perú. The results are given in the power curves of the wind turbine prototype. We also demonstrated the reliability of the mechanism when submitti...
7
artículo
Publicado 2013
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Two years after the storm raised by the Carta Atenagórica (Letter Worthy of Athena) and, precisely two years before her death, Sor Juana sent to an Academy of Portuguese nuns (A Casa do Prazer) —assiduous readers not only of religious matters— a set of 20 riddles that have received little attention from the critics of her work. The brevity of these writings and their hermetic nature —taking into account the fact that the author has not given them a ultimate solution— have postponed being given the importance they deserve, for they might be the last finished work —conceived as a unit in itself— of the New-Spanish writer. What importance does this score of writings have, written by a nun to the amusement of other nuns? What significance do they acquireby being one of her last written works after having complied with the silence imposed on it? Are they an atypical curiosity, a ...
8
tesis de grado
La tecnología ha contribuido significativamente al desarrollo de dispositivos de ayuda para personas con discapacidad (DPs). Muchos de estos dispositivos tienen como objetivo ayudar a las personas invidentes o con discapacidad visual, brindándoles formas más amigables de interactuar con su entorno (obstáculos, objetos y navegación). Sin embargo, el alto costo de estos dispositivos dificulta que los DP puedan adquirirlos. En este trabajo, se presenta con un enfoque didáctico y detallado, el desarrollo de un kit de dispositivos de asistencia para ser utilizado por personas con discapacidad visual en ambientes controlados (interiores) o espacios urbanos (exteriores). Este kit de bajo costo (50 USD por dispositivo) consta de un bastón, una gorra y un guante inteligente. La metodología abordada tiene como objetivo apoyar y fomentar la reproducción, personalización y fabricación de ...
9
artículo
Publicado 2017
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El siguiente texto reporta un caso del uso del dispositivo I-gel® vía aérea, la misma que puede proporcionar una ventilación segura y eficaz incluso con el paciente en decúbito lateral, sin embargo recalca que se necesitan más casos para hacer conclusiones sobre eficacia y seguridad en decúbito lateral.
10
artículo
The number of devices connected to the Internet currently exceeds the world's population by more than three times and this figure is expected to double in the next five years. The Internet of Things is a concept that describes this trend and outlines certain aspects of design and functionality that new devices must incorporate in order to successfully integrate with the Internet. In this sense, digital signage networks traditionally used for audiovisual media meet many of the characteristics required in the context of the Internet of Things: interoperability, mobility, scalability and ubiquity; relating both to the access and control of devices and to the information they generate. In this work, the power of using the proposed digital signage network as a substrate to be able to connect other types of devices so that they can take advantage of these networks is considered. To that end, t...
11
artículo
El número de dispositivos conectados a Internet supera actualmente a la población mundial por más de tres veces y se espera que esta cifra se duplique en los próximos cinco años. El Internet de las Cosas es un concepto que describe esta tendencia y perfila ciertos aspectos de diseño y funcionalidad que los nuevos dispositivos deben incorporar para lograr una integración exitosa en Internet. En este sentido, las redes digital signage utilizadas tradicionalmente para los medios de comunicación audiovisual cumplen muchas de las características requeridas en el contexto del Internet de las Cosas: interoperabilidad, movilidad, escalabilidad y ubicuidad; relativas tanto al acceso y control de dispositivos como a la información que estos generan. En este trabajo se plantea el poder de emplear la red digital signage propuesta como sustrato para poder conectar otros tipos de dispositivo...
12
artículo
Publicado 2015
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OBJECTIVE: To determine the efficacy of a low cost device used for the transvaginal aspiration of adnexal simple cysts. DESIGN: Observational and prospective study. SETTING: Private practice, Socabaya District, Arequipa, Peru. PARTICIPANTS: Patients with non-complicated adnexal simple cysts. INTERVENTIONS: Previous informed consent, in 15 patients bearers of non-complicated adnexal simple cysts transvaginal aspiration of the cyst was done by using a low-cost handmade device (guide) connected to a portable ultrasound machine endovaginal transducer. Samples of aspiration were sent for pathological study. Patients were surveyed clinically and by ultrasound for 12 months. MAIN OUTCOME MEASURES: Difficulty and complications of the procedure, cyst remission. RESULTS: The procedure was achieved without difficulties or complications in all 15 patients. There was complete remission of the cyst in...
13
artículo
Publicado 2015
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OBJECTIVE: To determine the efficacy of a low cost device used for the transvaginal aspiration of adnexal simple cysts. DESIGN: Observational and prospective study. SETTING: Private practice, Socabaya District, Arequipa, Peru. PARTICIPANTS: Patients with non-complicated adnexal simple cysts. INTERVENTIONS: Previous informed consent, in 15 patients bearers of non-complicated adnexal simple cysts transvaginal aspiration of the cyst was done by using a low-cost handmade device (guide) connected to a portable ultrasound machine endovaginal transducer. Samples of aspiration were sent for pathological study. Patients were surveyed clinically and by ultrasound for 12 months. MAIN OUTCOME MEASURES: Difficulty and complications of the procedure, cyst remission. RESULTS: The procedure was achieved without difficulties or complications in all 15 patients. There was complete remission of the cyst in...
14
tesis de maestría
Publicado 2013
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Desarrolla una configuración experimental para evaluar la eficiencia de remoción del virus MS2 de un filtro de tela de fibra de carbón activado. La exposición a bioaerosoles en ambientes interiores está asociada a efectos adversos a la salud. Existe la necesidad de desarrollar dispositivos de control que permitan remover bioaerosoles de los flujos de gases en sistemas de ventilación y calefacción. Esta investigación consistió en el desarrollo de un generador LSA modificado para producir un flujo estable de aerosol. Asimismo, se determinó la eficiencia de recolección del bacteriófago MS2 a través del BioSampler, utilizado para caracterizar la eficiencia de remoción biológica del filtro ACFC mediante la captura del bioaerosol en un medio líquido antes y después del filtro. Se empleó una membrana de 100k Dalton para recolectar partículas aerosolizadas de MS2 en la entrada...
15
tesis de grado
Publicado 2024
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El uso de robots manipuladores en cirugías laparoscópicas asistidas ha ganado relevancia debido a su capacidad para mejorar la precisión y reducir las limitaciones de las técnicas quirúrgicas convencionales. Sin embargo, la operación eficaz de estos robots requiere controladores que manejen con precisión las complejas dinámicas no lineales y las perturbaciones desconocidas. Esta tesis se centra en el diseño e implementación de un controlador de movimiento por modo deslizante para el robot UR5, con el objetivo de mejorar la precisión y rapidez en tareas quirúrgicas, específicamente en cirugías laparoscópicas asistidas. Los robots enfrentan desafíos como perturbaciones externas y limitaciones en el rango de movimiento, por lo que se propone un controlador robusto que minimice el error de trayectoria y el tiempo de respuesta, asegurando que el robot siga las referencias de p...
16
artículo
Publicado 2023
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The research addresses the link between emotional dysregulation, nomophobia, and Instagram addiction in Chilean university students. A quantitative study of correlational scope was conducted with a non-experimental cross-sectional design. The sample consisted of 218 university students from south-central Chile, who answered the Difficulties in Emotional Regulation Scale (DERS-E), the Nomophobia questionnaire NMP-Q, the Berger Instagram Addiction Scale (BIAS) and reported some parameters of their Instagram account activity. The results account for multiple correlations between nomophobia and Instagram addiction with all dimensions of emotional dysregulation. The number of followers and posts on the Instagram platform did not correlate with the dimensions of emotional dysregulation, although they did show correlations with nomophobia and Instagram addiction. The number of followers, on the...
17
tesis de grado
Publicado 2015
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Las entidades públicas como las Municipalidades rurales se encuentran agobiadas por los diferentes desafíos a los cuales deben hacer frente a la ciudadanía. En este caso es la transparencia de información en la administración de control de sanciones de los vehículos menores (Mototaxis). El principal problema que existe es que al no contar con un sistema informático que permita administrar el control de sanciones, existen deficiencias en la administración como: pérdidas de información, informalidad administrativa, pérdida de tiempos en registros y consultas de infracciones. Para este problema se ha investigado en diferentes Municipales rurales las cuales aún no cuentan con un control eficiente para la administración de infracciones; en consecuencia, existen ciertas inquietudes de parte de los propietarios de los vehículos menores por no contar con una información transparen...
18
artículo
Publicado 2017
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There is a debate about the concept of mobile learning and the emergence of mobile devices in higher edcation. This research was developed from a qualitative approach, with the participation of eight university faculty members through a discussion group. The objective was to understand the following aspects: (a) the faculty’s concept of mobile learning; (b) their perspective on using smartphones and tablets in the classroom; and, (c) the implications in the teacher-student relationship upon the incorporation of these devices in higher education. From the data obtained, we can confirm that there is a construction of the concept of mobile learning that comes from everyday praxis. The incursion of tablets and smartphones in the classrooms has been natural. Concerns regarding the management and control of these devices in class were identified, in addition to the concern about their educat...
19
artículo
Publicado 2017
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There is a debate about the concept of mobile learning and the emergence of mobile devices in higher edcation. This research was developed from a qualitative approach, with the participation of eight university faculty members through a discussion group. The objective was to understand the following aspects: (a) the faculty’s concept of mobile learning; (b) their perspective on using smartphones and tablets in the classroom; and, (c) the implications in the teacher-student relationship upon the incorporation of these devices in higher education. From the data obtained, we can confirm that there is a construction of the concept of mobile learning that comes from everyday praxis. The incursion of tablets and smartphones in the classrooms has been natural. Concerns regarding the management and control of these devices in class were identified, in addition to the concern about their educat...
20
artículo
Publicado 2025
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This article presents the design and implementation of an electronic device to assist visually impaired people in reading printed texts. This mechatronic system uses a Raspberry Pi V3 camera mounted on glasses to capture images of printed texts. The images are processed through Optical Character Recognition, and the extracted text is converted to audio using a Text-to-Speech synthesizer, allowing the user to access the visual content audibly. The device is based on a Raspberry Pi 3 Model B+ microcontroller for data management and control of the electronic components. It is designed to be portable, ergonomic, and energy-efficient, with a long-lasting battery.
