Revista de Ciencia y Tecnología最新文献_第5页

Automatic Identification of banana quality with Deep Neural Network Classification (DNN) 基于深度神经网络分类的香蕉品质自动识别

Revista de Ciencia y Tecnología Pub Date : 2022-12-21 DOI: 10.18682/cyt.vi22.4609

Deyner Julian Navarro Ortiz, Silvia Alejandra Martinez Lopez

{"title":"Automatic Identification of banana quality with Deep Neural Network Classification (DNN)","authors":"Deyner Julian Navarro Ortiz, Silvia Alejandra Martinez Lopez","doi":"10.18682/cyt.vi22.4609","DOIUrl":"https://doi.org/10.18682/cyt.vi22.4609","url":null,"abstract":"The industrialization of agriculture has gradually taken place in Colombia, because of the need to optimize the time and effort required for the processes involved from growing fruits and vegetables to their distribution and commercialization, whether they are meant for exportation or commercialization within the country. Fruit classification is a very important process before they are being taken out as a final product, since predetermined guidelines issued by regulatory entities that define the quality of the harvested product must be followed. The authors propose a low-cost prototype for the automatic classification of bananas according to the NTC 1190 standard (Colombian normative), using a convolutional neural network (CNN) of MobileNetV2 architecture trained through transfer learning and implemented in a Raspberry Pi 3B+ with a camera to monitor the specimens and an easy interface for interaction with the user, as well as a case designed to contain the hardware and allow access to its ports in the most compact way possible. The datasets utilized in this work for training, validation, and testing, consists of images taken from two free access fruit database and others acquired by the researchers. The achieved precision is 87 %, enough to ensure reliability and low computational cost.","PeriodicalId":21243,"journal":{"name":"Revista de Ciencia y Tecnología","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84581429","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

Diseño y fabricación experimental de placas cemento-PET para ser utilizadas en la construcción de muros no portantes en ecoviviendas 用于生态住宅非承重墙建设的水泥- pet板的设计和实验制造

Revista de Ciencia y Tecnología Pub Date : 2022-12-21 DOI: 10.18682/cyt.vi22.7058

V. Taccone, N. Oviedo, S. Montenegro, M. J. Ganiele, Melanie Melo, Luciana Quinteros, M. Artaza, G. Gonzalez, Luciana Abadie, S. Fabbro, Luciano Attorresi, Lucio M. E. Ponzoni

引用次数: 0

An IoT architecture for smart cities based on the FIWARE platform 基于FIWARE平台的智慧城市物联网架构

Revista de Ciencia y Tecnología Pub Date : 2022-10-31 DOI: 10.36995/j.recyt.2022.38.003

Dalia M. Berbes Villalón, Laura Sánchez Jiménez, Manuel de la Iglesia Campos, María E. Díaz Aguirre, Tatiana Delgado Fernández

{"title":"An IoT architecture for smart cities based on the FIWARE platform","authors":"Dalia M. Berbes Villalón, Laura Sánchez Jiménez, Manuel de la Iglesia Campos, María E. Díaz Aguirre, Tatiana Delgado Fernández","doi":"10.36995/j.recyt.2022.38.003","DOIUrl":"https://doi.org/10.36995/j.recyt.2022.38.003","url":null,"abstract":"The Internet of Things (IoT) is a concept that has been gaining considerable popularity today. It attempts to represent everyday things that are connected to the internet, but in reality it is much more than that. The overall aim is to interconnect the physical with the digital world, as the physical world is measured by sensors which translates into actionable data, and also the data can be translated into commands to be executed by actuators.\u0000Currently, the number of designed IoT architectures has increased considerably as a result of different approaches, standards and use cases. This leads to difficulties in understanding, selecting and using these architectures. In this work, an IoT architecture based on the FIWARE platform is proposed with the aim of facilitating the development of smart cities. With the proposal made, it was possible to integrate the main elements to be considered in this technology, thus offering a basis that serves as a guide, both for developing IoT systems and for creating more specific architectures that respond to the particular characteristics of a given application.","PeriodicalId":21243,"journal":{"name":"Revista de Ciencia y Tecnología","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89146240","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: 1

Evaluation of sorption isotherms in snacks with pregelatinized cassava 预糊化木薯零食吸附等温线的评价

Revista de Ciencia y Tecnología Pub Date : 2022-10-31 DOI: 10.36995/j.recyt.2022.38.004

A. Cazzaniga, M. Brousse, R. A. Linares

引用次数: 1

Extraction of Stevioside and Rebaudioside A from Stevia rebaudiana by percolation with ethanol-water solvents 乙醇-水溶剂浸提甜菊糖苷和甜菊糖苷A

Revista de Ciencia y Tecnología Pub Date : 2022-10-31 DOI: 10.36995/j.recyt.2022.38.007

L. Celaya, D. Ferreyra, Eugenio Kolb, Nicolás Kolb Koslobsky

引用次数: 0

Urban Solid Waste Characterization of the Misiones Metropolitan Area Misiones大都市区城市固体废物特性研究

Revista de Ciencia y Tecnología Pub Date : 2022-10-31 DOI: 10.36995/j.recyt.2022.38.005

C. G. Sambiasi, A. E. Pascual Barrera, M. Sambiasi

{"title":"Urban Solid Waste Characterization of the Misiones Metropolitan Area","authors":"C. G. Sambiasi, A. E. Pascual Barrera, M. Sambiasi","doi":"10.36995/j.recyt.2022.38.005","DOIUrl":"https://doi.org/10.36995/j.recyt.2022.38.005","url":null,"abstract":"This paper reports the behaviour of solid urban waste generation in the Metropolitan Area of Misiones, during a period of seven days. The waste analysed came from collection routes by household sampling points determined according to the land use and socioeconomic level of the population in the study area. The methodology consisted of visualising the sample universe, selecting the household waste collection routes and then classifying and analysing their composition according to ASTM D5231-92 (2016). This strategy was considered valid, given that the habits and customs of the population are closely related to the socioeconomic levels that directly affect consumption and consequently the quality of waste. Organic matter (51.80%) was the most representative, followed by materials with recycling potential, such as plastic (13.90%), glass (7.90%), paper and cardboard (7.80%), metals/aluminium (2.20%) and tetrabrik (2.60%). The quality of MSW was not uniform between cities, with Garupá (61.50%) being the city that generated the most organic waste, followed by Posadas (57.50%) and ending with Candelaria (29.00%) with a marked decrease. As a limitation of the method, it was determined that the results are representative of each city and of the winter season.","PeriodicalId":21243,"journal":{"name":"Revista de Ciencia y Tecnología","volume":"68 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79278244","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

Location and characterization of the Misiones plinthite (Argentina) 阿根廷Misiones燧石的位置和特征

Revista de Ciencia y Tecnología Pub Date : 2022-10-31 DOI: 10.36995/j.recyt.2022.38.006

D. A. Vigo, N. R. Siviero, C. Schvezov

{"title":"Location and characterization of the Misiones plinthite (Argentina)","authors":"D. A. Vigo, N. R. Siviero, C. Schvezov","doi":"10.36995/j.recyt.2022.38.006","DOIUrl":"https://doi.org/10.36995/j.recyt.2022.38.006","url":null,"abstract":"Plinthite (Gr. Plinthos, brick) is a residual soil that occupies 60 million hectares on the planet. The Province of Misiones (Argentina) is the border zone of South America where this soil appears, locally called in its cemented state or petroplinthite as itácurú (stone toad in the Guarani language). Four centuries ago, it was used in the form of blocks cut from nearby deposits for the construction of the Jesuit reductions since 1601 in Loreto. Since then, there is a time jump until it is used in the construction of Coastal Route No. 2. In view of its potential and in the absence of systematic studies, this report aims to promote this mining resource for the restoration of reductions, constructions allegorical and road use. To this end, prospecting has been carried out in search of new deposits and others previously exploited that have been detected and evaluated; some used by the Jesuits. The location, size and approximate power of each of the explored deposits are presented, as well as the geotechnical values.\u0000The experimental results of the physical-mechanical properties and the effects on the properties of the different drying/wetting cycles carried out are presented and analyzed.","PeriodicalId":21243,"journal":{"name":"Revista de Ciencia y Tecnología","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82667412","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

Electronic device for gait analysis 步态分析电子装置

Revista de Ciencia y Tecnología Pub Date : 2022-10-31 DOI: 10.36995/j.recyt.2022.38.002

Alejandro A. Vistorte Salgado, F. E. Hernández Montero, Gianna Arencibia Castellanos

引用次数: 0

Prevalence and antimicrobial profile of Shigella causing acute diarrheal disease in pediatrics in Posadas, Misiones 在波萨达斯，米西奥尼的儿科引起急性腹泻病的志贺氏菌的流行和抗菌谱

Revista de Ciencia y Tecnología Pub Date : 2022-10-31 DOI: 10.36995/j.recyt.2022.38.009

S. Grenón, L. Leguizamón, A. del Valle, S. Pallarès, M. S. Salvi Grabulosa, M. V. von Specht

{"title":"Prevalence and antimicrobial profile of Shigella causing acute diarrheal disease in pediatrics in Posadas, Misiones","authors":"S. Grenón, L. Leguizamón, A. del Valle, S. Pallarès, M. S. Salvi Grabulosa, M. V. von Specht","doi":"10.36995/j.recyt.2022.38.009","DOIUrl":"https://doi.org/10.36995/j.recyt.2022.38.009","url":null,"abstract":"Our objective was to evaluate the presence and microbiological characteristics of Shigella in children with acute diarrhoeal disease (ADD), attended at the Paediatric Hospital of Posadas, Misiones between 2016 and 2019. All ADEs documented in the laboratory were included. Standardised microbiological techniques were used. We considered age groups: infants (L)≤ 2 years, preschool (PE): 3-5 years, school (E): 5- 14 years. We recorded 106/2128 (5%) Shigella spp. isolates, with a higher frequency in summer (54.5%). S. flexneri (64; 60.4% serotypes 02(54), 03(3), AA479(2) and 01(1)) and S. sonnei (37; 34.9%) predominated. Mean age: 4.2 years (1.2 m-11a). Those < 5 years old were the most affected (70 %). Hospitalisation was required in 7.7%. S. flexneri/S. sonnei were: in L (42.9% vs 27.7%) and in E (27 vs 42.9%). Overall resistance to AMP was 72.7% and 58.1% to TMS. 97% were sensitive to furazolidone (FUR), cefpodoxime and fluorinated quinolones. In S. flexneri the % resistance to AMP/TMS was (78.7/44.8) and in S. sonnei (61.8/80.6) p< 0.05). We detected 6 resistance phenotypes with low multi-resistance (2.6%). FUR remains an empirical therapeutic option in outpatients.","PeriodicalId":21243,"journal":{"name":"Revista de Ciencia y Tecnología","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84246169","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

Computational Environment for Genomic Sequencing and Annotation: a workflow for application in projects by life researchers 基因组测序和注释的计算环境:生命研究人员项目应用的工作流程

Revista de Ciencia y Tecnología Pub Date : 2022-10-31 DOI: 10.36995/j.recyt.2022.38.008

Matheus Pedron Cassol, Alexandre Rafael Lenz, Rudinei Zacaria, Scheila de Avila e Silva

{"title":"Computational Environment for Genomic Sequencing and Annotation: a workflow for application in projects by life researchers","authors":"Matheus Pedron Cassol, Alexandre Rafael Lenz, Rudinei Zacaria, Scheila de Avila e Silva","doi":"10.36995/j.recyt.2022.38.008","DOIUrl":"https://doi.org/10.36995/j.recyt.2022.38.008","url":null,"abstract":"The current paper seeks to approach, using a workflow, basics subjects of the bioinformatic field and also useful informations to consider during the development of in silico researches. Installation and general usage of multiple softwares related to different sections of the genome annotation process were also presented. At last, an model organism, Staphylococcus aureus, was sequenced in two different softwares, SPAdes and IDBA-UD, seeking further comparison and evaluation of the process as a whole. The quality evaluation of the assemble was established by tests on QUAST, BUSCO and Augustus, supported by BLASTP. Results: QUAST evaluation returned genome coverage values above 98% in both test cases, pointing towards a trustworthy assemble for this organism. Via SPAdes were needed less computational resources, but, using IDBA-UD the sequences found were more contiguous. Results deriving from BUSCO showed only one expected gene difference. Some proteins and genes predicted by Augustus led to hits, sequences already studied in that organism, using the BLASTP program.","PeriodicalId":21243,"journal":{"name":"Revista de Ciencia y Tecnología","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88184486","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