ECORFAN Journal Taiwan最新文献

Numerical analysis of the hydrodynamic behavior of a magnetoreological fluid 磁流体流体动力特性的数值分析

ECORFAN Journal Taiwan Pub Date : 2022-11-16 DOI: 10.35429/ejt.2022.11.6.1.11

Daysi Flor de Liz ORTEGA-ROMERO, J. Zúñiga-Cerroblanco, J. G. Hortelano-Capetillo

引用次数: 0

Automatic blood vessel detection using fractional Hessian matrices 自动血管检测使用分数Hessian矩阵

ECORFAN Journal Taiwan Pub Date : 2022-11-16 DOI: 10.35429/ejt.2022.11.6.12.19

L. Martínez-Jiménez, Pedro LÓPEZ-LARA, A. FLORES-BALDERAS, J. López-Hernández

引用次数: 0

Poptical properties of a mucilage 粘液的政治性质

ECORFAN Journal Taiwan Pub Date : 2021-12-31 DOI: 10.35429/ejt.2021.10.5.32.36

J. C. Ramírez-Granados, B. E. Gómez-Luna, I. Herrera-Díaz, R. Veloz-García

引用次数: 0

Ferroresonance simulations in radial systems using ATPDraw 利用ATPDraw进行径向系统的铁共振模拟

ECORFAN Journal Taiwan Pub Date : 2021-12-31 DOI: 10.35429/ejt.2021.10.5.1.10

Rubén Joaquín Cetina-Abreu, M. Madrigal-Martínez, V. Torres-García, Manuel A. Corona-Sánchez

引用次数: 1

Forcing faults diagnosis in K steps in discrete event systems 离散事件系统的K步强迫故障诊断

ECORFAN Journal Taiwan Pub Date : 2021-12-31 DOI: 10.35429/ejt.2021.10.5.11.21

J. Carlos, RAMOS-CABRAL, MARTÍNEZ-VARGAS, Martha Patricia

{"title":"Forcing faults diagnosis in K steps in discrete event systems","authors":"J. Carlos, RAMOS-CABRAL, MARTÍNEZ-VARGAS, Martha Patricia","doi":"10.35429/ejt.2021.10.5.11.21","DOIUrl":"https://doi.org/10.35429/ejt.2021.10.5.11.21","url":null,"abstract":"Discrete Event Systems occur naturally in engineering practice and include industrial processes, production systems, robotics, among others. So, its diagnosis is important. The aim of this work is to present a new approach to enforce faults diagnosis in Discrete Event Systems modeled by Interpreted Petri nets without limited to much its language. This approach is based on a Regulation Circuit that reduces the relative distance between any two pair of transitions that prevent the detection of the firing of transitions whose occurrence indicates that a fault occurred. By modifying the initial marks of the net that make up the Regulation Circuit, language limitation is avoided, and the diagnosis is established in k steps. First, the terminology used in the Interpreted Petri nets and the diagnosis are established, then the relationship between theses nets and the Regulation Circuit is reviewed to determine the characterization of nets where they can be added, they are analysed and then the proposal is made. The proposal is an option to force faults diagnosis in binary Interpreted Petri nets that are not diagnosable without limiting so much its language that represents their behavior.","PeriodicalId":356684,"journal":{"name":"ECORFAN Journal Taiwan","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133474085","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

3D Reconstruction and Texture Refinement with Image Enhancement for Improved Visual Quality 三维重建和纹理细化与图像增强提高视觉质量

ECORFAN Journal Taiwan Pub Date : 2021-12-31 DOI: 10.35429/ejt.2021.10.5.22.31

Cesar-Agustin Corona-Patricio, Carolina Reta

引用次数: 1

Analysis of speckle patterns in electronic devices for the monitoring of current changes 监测电流变化的电子器件中散斑图案的分析

ECORFAN Journal Taiwan Pub Date : 2021-06-30 DOI: 10.35429/ejt.2021.9.5.1.7

Y. F. López-Álvarez, Ricardo Jara-Ruíz, M. E. Rodríguez-Franco, S. Delgado-Guerrero

{"title":"Analysis of speckle patterns in electronic devices for the monitoring of current changes","authors":"Y. F. López-Álvarez, Ricardo Jara-Ruíz, M. E. Rodríguez-Franco, S. Delgado-Guerrero","doi":"10.35429/ejt.2021.9.5.1.7","DOIUrl":"https://doi.org/10.35429/ejt.2021.9.5.1.7","url":null,"abstract":"Derived from new advances technological focused on the development of highly functional electronic devices; the manufacturers are obliged to the implementation of techniques to monitor their behavior. These techniques can be destructive or non-destructive, taking the analyzed device to the maximum working range. In this investigation report we show of the results obtained in the study of the speckle patterns of a positive voltage regulator, we used the probability density function and the correlation coefficients, as a statistical analysis of first and second order. The analysis was realized in each terminal of the electronic device, with changes in the input current. The result obtained suggest that the first and second order statistical analysis are good tool in a not destructive measurement and that its results can be relationship with the supply current. These changes are present a behavior ascending as the device operates in the junction temperature range; presenting itself as a mechanism for transmission and convection of heat, using the random distribution of speckle pattern, taking to optical measurement as an technique alternative in the study of electronic devices.","PeriodicalId":356684,"journal":{"name":"ECORFAN Journal Taiwan","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134158530","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

Creating a backscatter multispectral mosaic with the R2Sonic 2024 Echosounder 使用R2Sonic 2024回声探测仪创建后向散射多光谱马赛克

ECORFAN Journal Taiwan Pub Date : 2021-06-30 DOI: 10.35429/ejt.2021.9.5.24.31

Ana María Aguilar-Ramírez, Aníbal González-Juárez, Antonio Molina-Navarro, Alberto Utrera-Zarate

{"title":"Creating a backscatter multispectral mosaic with the R2Sonic 2024 Echosounder","authors":"Ana María Aguilar-Ramírez, Aníbal González-Juárez, Antonio Molina-Navarro, Alberto Utrera-Zarate","doi":"10.35429/ejt.2021.9.5.24.31","DOIUrl":"https://doi.org/10.35429/ejt.2021.9.5.24.31","url":null,"abstract":"The backscatter in Hydrographic surveys (LH) at the time of bathymetry is to measure the response of the acoustic pulse upon reaching the seabed, one part is reflected and another is absorbed by the type of sediment that exists on the bottom, the main objective The purpose of this work is to create a multispectral mosaic with the Broadband Multibeam Echosounder (MBES) R2Sonic 2024, in order to characterize the seabed through the use of different frequencies (170 kHz, 330 KHz and 450 kHz). Therefore, bathymetric data were obtained from the hydrographic survey carried out in the Port of Veracruz, highlighting that only one area of the seabed of said Port was analyzed, starting from the cleaning of the data with Hypack, the creation of the reference surface with the Fledermaus software and finally the backscatter data processing with the FMGeocoder Toolbox software. The processing allowed us to obtain as a final product a backscatter multispectral mosaic with acceptable parameters (due to the missing information of the 330 kHz frequency, but it was replaced by the 200 kHz one), which signify the beginning of the implementation of these mosaics in This area of research with multiple hydrographic, oceanographic and geological applications, due to the fact that currently there are not many studies on this subject in Mexico.","PeriodicalId":356684,"journal":{"name":"ECORFAN Journal Taiwan","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125164382","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

Study of the mechanical properties of magnetic composites supported on a PU matrix 聚氨酯基磁性复合材料力学性能研究

ECORFAN Journal Taiwan Pub Date : 2021-06-30 DOI: 10.35429/ejt.2021.5.9.8.13

Miguel Martinez-Moreno, R. Fuentes-Ramírez, D. Contreras-López, Rosario Galindo-González

引用次数: 0

The emotions of upper secondary level students in a virtual learning environment 高中阶段学生在虚拟学习环境中的情绪

ECORFAN Journal Taiwan Pub Date : 2021-06-30 DOI: 10.35429/ejt.2021.9.5.14.23

Efigenia Flores-González

{"title":"The emotions of upper secondary level students in a virtual learning environment","authors":"Efigenia Flores-González","doi":"10.35429/ejt.2021.9.5.14.23","DOIUrl":"https://doi.org/10.35429/ejt.2021.9.5.14.23","url":null,"abstract":"In recent years and derived from the pandemic that is experienced today, online education has been advancing by leaps and bounds. It has demanded that educational actors face and adapt to a series of changes that have been generated by the implementation of digital environments in the teaching-learning process. It is in this scenario where the objective is to identify the students’ emotions from High school with respect to their learning in a virtual environment. They experience a series of emotions that according to Lin, Su, Chao, Hsieh and Tsa, (2016) can generate the ideal environment to develop more successful learning processes through positive emotions. To achieve this objective, a quantitative investigation was developed, and a questionnaire with a Likert scale was designed and applied to a sample from the Enrique Cabrera Barroso Regional High School. This instrument revealed the emotions they experience in a virtual learning environment during their learning process and their interaction among the actors. Considering the results, we find that students experience a series of internal emotions that are decisive for adapting to a virtual environment.","PeriodicalId":356684,"journal":{"name":"ECORFAN Journal Taiwan","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130726939","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