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An 8-bit TDC implemented with two nested Johnson counters 一个8位TDC，由两个嵌套的Johnson计数器实现
IF 0.1
Tecnologia en Marcha Pub Date : 2023-06-29 DOI: 10.18845/tm.v36i6.6769
Jonathan Santiago-Fernandez, Alejandro Diaz-Sanchez, Gregorio Zamora-Mejia, Jose Miguel Rocha-Perez
{"title":"An 8-bit TDC implemented with two nested Johnson counters","authors":"Jonathan Santiago-Fernandez, Alejandro Diaz-Sanchez, Gregorio Zamora-Mejia, Jose Miguel Rocha-Perez","doi":"10.18845/tm.v36i6.6769","DOIUrl":"https://doi.org/10.18845/tm.v36i6.6769","url":null,"abstract":"This work presents a Time-to-Digital Converter implemented using two nested Johnson counters and suitable for time-lapse measurement applications. The proposed structure is composed of two 4-bit nested counters, two digital-logic control networks, two registers and a single decoder. Semi-dynamic logic was used for the decoder to reduce its power consumption. The system has a standard digital output and is powered by a 1.8 V supply with a total power consumption of 32.4 mW. A prototype was fabricated using a TSMC 180 nm CMOS technology. The proposed structure uses a 508 µm x 225 µm area. In addition, this TDC has a standard deviation of 0.78 LSB with a fixed input time interval operating at a frequency of 1 MHz.  The proposed structure shows good performance results and repeatability for continuous conversion conditions, these results are attributed to the simplicity of the system and the use of counters with minimum gate delay as the main elements for the TDC.","PeriodicalId":42957,"journal":{"name":"Tecnologia en Marcha","volume":"917 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86823229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A pathway to In-Memory Computing driven Wellness Digital Twin utilizing Remote Patient Monitoring System (WDT-RPMS) 利用远程患者监测系统(WDT-RPMS)实现内存计算驱动的健康数字孪生的途径
IF 0.1
Tecnologia en Marcha Pub Date : 2023-06-29 DOI: 10.18845/tm.v36i6.6750
Kishore Kumar Kadari, Ali Shiri Sichani, Wilfrido Moreno
{"title":"A pathway to In-Memory Computing driven Wellness Digital Twin utilizing Remote Patient Monitoring System (WDT-RPMS)","authors":"Kishore Kumar Kadari, Ali Shiri Sichani, Wilfrido Moreno","doi":"10.18845/tm.v36i6.6750","DOIUrl":"https://doi.org/10.18845/tm.v36i6.6750","url":null,"abstract":"With fast-paced digital transformation, precision medicine has been an essential part to elevate the conscience of healthcare with respect to the biopsychosocial model with the help of Remote Patient Monitoring Systems. Digital twins have been successful in many industries, in healthcare, it can optimize the wellness of the human body to improve physical and mental wellness including the non-diagnosed diseased populations and rural populations. \u0000  In this paper, we discuss the challenges in terms of computing to implement a complex system called Wellness Digital Twin-based Remote Patient Monitoring System following Model-Based Systems Engineering (MBSE), we present the definition, needs of the digital twin in the context of wellness and healthcare, a feasibility study followed by a concept of operations. Subsequently, we present the requirements and architecture including In-memory computing, (Emerging NonVolatile Memories, memristive devices) that will enhance sensing, analytics, and levers of action.","PeriodicalId":42957,"journal":{"name":"Tecnologia en Marcha","volume":"10 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79121788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Degradation indicators for power electronic converters 电力电子变流器的退化指标
IF 0.1
Tecnologia en Marcha Pub Date : 2023-06-29 DOI: 10.18845/tm.v36i6.6751
Ramiro Alejandro Plazas-Rosas, Édinson Franco Mejía, Martha Lucia Orozco-Gutiérrez
{"title":"Degradation indicators for power electronic converters","authors":"Ramiro Alejandro Plazas-Rosas, Édinson Franco Mejía, Martha Lucia Orozco-Gutiérrez","doi":"10.18845/tm.v36i6.6751","DOIUrl":"https://doi.org/10.18845/tm.v36i6.6751","url":null,"abstract":"Power electronic converters are an important element in the interaction between source and load. In fact, failures in this system often lead to bigger problems. Therefore, it is necessary to monitor the converter components that have the most failures. In this work, we present the estimation of three parameters, which are, in turn, degradation indicators of components in the power electronic converters: equivalent series resistance, capacitance and on-state resistance. Using current and voltage measurements of the Boost converter.","PeriodicalId":42957,"journal":{"name":"Tecnologia en Marcha","volume":"25 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83363642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Control Bucal para silla de ruedas 轮椅的口腔控制
IF 0.1
Tecnologia en Marcha Pub Date : 2023-06-29 DOI: 10.18845/tm.v36i6.6758
Joel Sanabria-Salas
{"title":"Control Bucal para silla de ruedas","authors":"Joel Sanabria-Salas","doi":"10.18845/tm.v36i6.6758","DOIUrl":"https://doi.org/10.18845/tm.v36i6.6758","url":null,"abstract":"El proyecto propuesto consiste en ayudar y contribuir a la independencia y traslado para usuarios permanentes de sillas de ruedas que sufren de parálisis en sus extremidades y debido a esto no pueden operar ni controlar el movimiento de las sillas de ruedas eléctricas que existen hoy en día y deben ser asistidos por otra persona para el transporte, a través de un control bucal el cual funcionará como un dispositivo receptor de aire que conducirá el aire a sensores de presión conectados a un circuito Arduino o circuitos integrados lo que permite enviar la señal de movimiento a la silla y así dar una opción de independencia a las personas involucradas.","PeriodicalId":42957,"journal":{"name":"Tecnologia en Marcha","volume":"74 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90391482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Artificial Intelligence in STEM Education: Interactive Handson Environment using Open Source Electronic Platforms STEM教育中的人工智能:使用开源电子平台的交互式Handson环境
IF 0.1
Tecnologia en Marcha Pub Date : 2023-06-29 DOI: 10.18845/tm.v36i6.6759
Danny Xie-Li, Esteban Arias-Méndez
{"title":"Artificial Intelligence in STEM Education: Interactive Handson Environment using Open Source Electronic Platforms","authors":"Danny Xie-Li, Esteban Arias-Méndez","doi":"10.18845/tm.v36i6.6759","DOIUrl":"https://doi.org/10.18845/tm.v36i6.6759","url":null,"abstract":"This article describes an interactive methodology to teach Artificial Intelligence (AI) through the contructivism philosophy of learning by doing, using, open source electronic platforms, like Arduino, Snap Circuits, Raspberry Pi and Circuit Playground, with an interactive hands-on approach Workshops. These are provided to high school and non-engineering students by (previously trained) engineering students volunteers. The methodology proposed is designed to highlight, in different learning activities, key concepts about Artificial Intelligence (AI). AI abstractes the human intelligence processes through algorithms and computer systems, taking advantage of the amount of data generated nowadays to create innovative, effective, efficient, accurate and at low cost solutions, applied in different fields. The main purpose is to motivate the participants to explode its creativity, improving their innovation skills to provide solutions for XXI century problems, better quality of life, health, among others. A survey will be conducted for the students to find insights about effectiveness of the proposed methodology to better acquire knowledge about AI knowledge. We encourage instructors to use similar interactive hands-on methodologies and to include AI concepts with STEM activities into general education courses. Other concerns of AI, is about the fairness of these algorithms, the inclusion and diversity is a key player in how these systems are built, and it can have consequences as the person perspective when building it The idea of the need for diversity and inclusion of the AI field.","PeriodicalId":42957,"journal":{"name":"Tecnologia en Marcha","volume":"63 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77282305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Presentación
IF 0.1
Tecnologia en Marcha Pub Date : 2023-06-29 DOI: 10.18845/tm.v36i6.6798
Esteban Arias-Méndez
{"title":"Presentación","authors":"Esteban Arias-Méndez","doi":"10.18845/tm.v36i6.6798","DOIUrl":"https://doi.org/10.18845/tm.v36i6.6798","url":null,"abstract":"<jats:p>resumen</jats:p>","PeriodicalId":42957,"journal":{"name":"Tecnologia en Marcha","volume":"2002 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88360369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Países más impactados por la crisis sanitaria provocada por la COVID-19 en el mundo al 29/08/2022 截至2022年8月29日，全球受COVID-19健康危机影响最大的国家
IF 0.1
Tecnologia en Marcha Pub Date : 2023-05-04 DOI: 10.18845/tm.v36i5.6413
Darner A. Mora-Alvarado
{"title":"Países más impactados por la crisis sanitaria provocada por la COVID-19 en el mundo al 29/08/2022","authors":"Darner A. Mora-Alvarado","doi":"10.18845/tm.v36i5.6413","DOIUrl":"https://doi.org/10.18845/tm.v36i5.6413","url":null,"abstract":"En el presente estudio se aborda el impacto de la crisis sanitaria causada por la COVID-19, cuyo agente causal es el virus SARS-CoV-2, en 191 países seleccionados, según la información de la plataforma virtual “datosmacro.com”. Para cumplir con el objetivo se utilizaron los indicadores de casos confirmados, muertes, letalidad y las tasas de muertes por COVID-19 por millón de habitantes.\u0000El análisis de los datos al 29/08/2022, indican que los datos de muertes absolutas por COVID-19 por país, no es el más adecuado para valorar el impacto de la crisis sanitaria en forma comparativa entre las naciones. Por su parte, las tasas de letalidad equivalentes a las muertes por COVID-19 entre el total de casos confirmados por el SARS-CoV-2, es un buen indicador, pero depende en mucha de la capacidad de los sistemas de salud de cada país.\u0000En el caso del indicador de muertes de COVID-19/millón de habitantes, a pesar de ciertas debilidades, es el mejor para valorar cuales han sido las naciones más impactadas por la COVID-19 por continentes y en el contexto mundial. Un ejemplo es la comparación entre Perú y los EUA, en donde el país Latinoamericano con una población estimada de 33.396.700 hab, con 215.514 muertes; mientras que EUA con una población de 332.183.000 hab, con 1.043.840 fallecidos, si bien es cierto es la nación con mayor cantidad de fallecidos en el mundo, su tasa de muerte asociadas a la COVID-19/millón de habitantes al 29/08/2022 era de 3.142,36, la cual era menor a la de Perú con 6.463,00. Es decir, esta nación Sudamericana era la más impactada por la crisis de la COVID-19 en el contexto mundial, seguido por Bulgaria, Macedonia del Norte, Bosnia y Herzegovina, Hungría, Georgia, Moldavia, Montenegro, Croacia y Chequia.","PeriodicalId":42957,"journal":{"name":"Tecnologia en Marcha","volume":"39 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81211029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Presentación segunda edición especial COVID-19
IF 0.1
Tecnologia en Marcha Pub Date : 2023-05-04 DOI: 10.18845/tm.v36i5.6710
A. Ramírez-Vega
{"title":"Presentación segunda edición especial COVID-19","authors":"A. Ramírez-Vega","doi":"10.18845/tm.v36i5.6710","DOIUrl":"https://doi.org/10.18845/tm.v36i5.6710","url":null,"abstract":"","PeriodicalId":42957,"journal":{"name":"Tecnologia en Marcha","volume":"160 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76720929","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
La COVID-19 en América Central Insular
IF 0.1
Tecnologia en Marcha Pub Date : 2023-05-04 DOI: 10.18845/tm.v36i5.6361
Darner A. Mora-Alvarado
{"title":"La COVID-19 en América Central Insular","authors":"Darner A. Mora-Alvarado","doi":"10.18845/tm.v36i5.6361","DOIUrl":"https://doi.org/10.18845/tm.v36i5.6361","url":null,"abstract":"El presente estudio describe, en tiempo real la evolución de la COVID-19 en trece naciones insulares de América Central, a más de dos años del inicio de la crisis sanitaria global, causada por el nuevo coronavirus SARS-CoV-2, detectado originalmente en Wuhan, China, el 17 de diciembre de 2019. La evolución descriptiva de los casos confirmados y muertes se presenta en dos etapas: la primera al 30 de octubre de 2021 y la segunda al 08 de abril de 2022. La población estimada de estos países insulares es de 29.605.675 habitantes distribuidos en forma heterogénea, en islas con más de 10 millones de habitantes en Cuba con 11.400.000 hab, Haití y República Dominicana con 11.400.000 hab. y 10.850.000 respectivamente, ubicados en la Isla La Española. Las otras naciones insulares tienen menos de 3 millones de habitantes; entre ellos: Jamaica, Trinidad y Tobago, Granada, Santa Lucía, Bahamas, Barbados, Dominica, San Vicente y Granadinas, San Cristóbal y Nieves. En las tres naciones se han presentado 2.206.567 contagios confirmados con 22.472 fallecidos para una letalidad promedio de 1,02%. Los países con más contagios y muertes son Cuba y República Dominicana. Los avances en la vacunación indican que, al 08 de abril del 2022, Cuba lidera tanto en América Central Insular, así como a nivel mundial y lógicamente del continente americano.","PeriodicalId":42957,"journal":{"name":"Tecnologia en Marcha","volume":"93 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84165067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
El impacto de los migrantes en la pandemia por “COVID-19” en Costa Rica 移民对哥斯达黎加“COVID-19”大流行的影响
IF 0.1
Tecnologia en Marcha Pub Date : 2023-05-04 DOI: 10.18845/tm.v36i5.6360
Darner A. Mora-Alvarado
{"title":"El impacto de los migrantes en la pandemia por “COVID-19” en Costa Rica","authors":"Darner A. Mora-Alvarado","doi":"10.18845/tm.v36i5.6360","DOIUrl":"https://doi.org/10.18845/tm.v36i5.6360","url":null,"abstract":"Se presenta en este estudio descriptivo, retrospectivo y analítico, sobre la influencia o impacto de la inmigración de las personas extranjeras en la evolución de la pandemia causada por la COVID-19, cuyo agente etiológico en el nuevo coronavirus SARS-CoV-2. Los datos diarios de casos confirmados totales de costarricenses y extranjeros, demuestra que el regreso de las personas nicaragüenses, provenientes de su patria, después del periodo de la Semana Santa-05/04/2020 al 11/04/2020, incrementó el número de casos a partir de los meses de junio, julio, agosto de 2020. Para efectos prácticos en este estudio preliminar se analizan los datos que van desde el 10/03/2020 al 01/08/2020. Por otro lado, como autor de este estudio, considero conveniente acotar que el mismo se elaboró con el propósito de resaltar la importancia de la inmigración en la atención de la medicina preventiva y su vinculación luego, con la medicina curativa. Ante esto, aclaro ante el lector, que, aunque se corre el riesgo de calificar este estudio como xenofóbico, la realidad es que no lo es, por el contrario, todos sabemos el gran aporte de los hermanos nicaragüenses a la fuerza laboral de Costa Rica, pero, por otra parte, es menester en salud pública, siempre indicar la verdad con el propósito de tomar medidas correctivas en las próximas epidemias o pandemias.","PeriodicalId":42957,"journal":{"name":"Tecnologia en Marcha","volume":"49 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89074590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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