2019 11th International Conference on Electronics, Computers and Artificial Intelligence (ECAI)最新文献

{"title":"Simulation of Power Factor Corrected AC-DC Boost Converter","authors":"Zeynep Bala Duranay, Hanifi Güldemir","doi":"10.1109/ECAI46879.2019.9042049","DOIUrl":"https://doi.org/10.1109/ECAI46879.2019.9042049","url":null,"abstract":"A double loop control method, one for voltage control and the other for current control, for a power factor corrected ac-dc boost converter is studied in this paper. A classical PI controller is used for the load voltage regulation due to its slow dynamics with respect to fast changing current. A much faster hysteresis band current controller is used for the current control which has ease of physical implementation. The power factor corrected boost converter is simulated under different load conditions. The obtained results are presented. A good power factor is achieved.","PeriodicalId":285780,"journal":{"name":"2019 11th International Conference on Electronics, Computers and Artificial Intelligence (ECAI)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129727360","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}

{"title":"Building and designing a Dual Axis Solar Tracker for Educational Purposes","authors":"F. Argatu, Florentin-Daniel Tarcau, V. Argatu, S. Grigorescu, B. Enache, L. Constantinescu","doi":"10.1109/ECAI46879.2019.9041949","DOIUrl":"https://doi.org/10.1109/ECAI46879.2019.9041949","url":null,"abstract":"This paper aims to put in evidence the functional principle of a solar tracker in an easy to understand manner for students. It will start from presenting the concept of green energy, the principle of how a photovoltaic cell is made, how to increase the efficiency of a solar panel by orientation after its movement and what algorithms can be used in order to increase the overall efficiency. It will also study the implementation of a practical solution using a solar panel on two freedom axes with two servomotors and four photoresistors which are controlled by an Arduino UNO unit so the direct exposure time of the panel in the Sun can be increased.","PeriodicalId":285780,"journal":{"name":"2019 11th International Conference on Electronics, Computers and Artificial Intelligence (ECAI)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130004392","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}

{"title":"An Approach for Estimating the Total Heat Transfer Rates in Embedded Systems","authors":"T. Alexandru, C. Pupăză","doi":"10.1109/ECAI46879.2019.9042071","DOIUrl":"https://doi.org/10.1109/ECAI46879.2019.9042071","url":null,"abstract":"Thermal design represents an essential stage in the cyber - physical systems development workflow. Recent advances in the field of Industry 4.0 bring into discussion emerging thermal issues due to extended networking and computational requirements, combined with the ongoing efforts of embedded systems miniaturization. Because of the tight constraints applied to the process, achieving an optimal cooling solution represents a challenging perspective. From this point of view, approaches based on conservative assumptions can no longer be acceptable. While multiphysics simulation software can cope with the multiple viewports of the thermal design process, the complexity of such approaches can be overwhelming. The present work addresses such issues by combining discrete event simulation with computer aided engineering software, supported by experimental methods. The approach allows engineers to capture the total heat transfer rate of active heat sources by having just a basic understanding of the synergic nature of cyber - physical systems","PeriodicalId":285780,"journal":{"name":"2019 11th International Conference on Electronics, Computers and Artificial Intelligence (ECAI)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132660775","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}

{"title":"Japanese Character Recognition with Microstrip Line Networks","authors":"Marian L. Novac, Marian-Bogdan Bodea, P. Anghelescu, Bogdan-Mihai G. Gavriloaia, O. Fratu, M. Gavriloaia","doi":"10.1109/ECAI46879.2019.9042042","DOIUrl":"https://doi.org/10.1109/ECAI46879.2019.9042042","url":null,"abstract":"Character recognition, a topical field seen from the large number of practical applications, allows the generation of characters in electronic media from printed documents or images. The Japanese language is one of the most difficult language because of the very large number of characters or classes of objects to be identified, and many recognition systems have been proposed. A new way of recognizing Japanese printed characters is presented in this paper. The proposed method is based on the modeling with microstrip lines of the character topological structure and the analysis using microwave engineering methods. The spectral distribution of the resonance frequencies is used as a local descriptor in the recognition process. A deep convolutional recurrent network is used for the classification step. The proposed method ensures good accuracy in the Japanese character recognition process using the lowest number of descriptors among the methods described in the literature. The character recognition method has been tested by analyzing the first ten resonant frequencies of the five Japanese vowels, and 99.9% character recognition has been provided for 20% dispersion of the microstrip line segment lengths.","PeriodicalId":285780,"journal":{"name":"2019 11th International Conference on Electronics, Computers and Artificial Intelligence (ECAI)","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132118274","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}

{"title":"DREAM Principles and FAIR Metrics from the PORTAL-DOORS Project for the Semantic Web","authors":"A. Craig, Adarsh Ambati, Shiladitya Dutta, Pooja Kowshik, Sathvik Nori, S. K. Taswell, Qiyuan Wu, C. Taswell","doi":"10.1109/ECAI46879.2019.9042003","DOIUrl":"https://doi.org/10.1109/ECAI46879.2019.9042003","url":null,"abstract":"Articles published in Scientific Data by Wilkinson et al. argued for the adoption of the Findable, Accessible, Interoperable, and Reusable (FAIR) principles of data management without citing any of the prior work published by Taswell. However, these principles were first proposed and described by Taswell in 2006 as the foundation for work on the PORTAL-DOORS Project (PDP) and the Nexus-PORTAL-DOORS-Scribe (NPDS) cyberinfrastructure, and have been published in numerous conference presentations, journal articles, and patents. This work on PDP and NPDS has been continuously available since 2007 from a publicly accessible web site at www.portaldoors.org, and discussed in person at conferences with several key authors of the Wilkinson et al. papers. Paraphrasing without citing the PDP and NPDS principles while renaming them as the FAIR principles raises questions about both the ‘FAIRness’ and the fairness of the authors of the Wilkinson et al. papers. Promoting these principles with the use of the term ‘metrics’, which are not metrics by definition of the term metric as used in most fields of science, also raises questions about their commitment to maintaining consistency of usage for basic terminology across different fields of science as should be expected for terms in ontology mapping with knowledge engineering for the semantic web. Therefore, in the present report, we clarify the origin of their FAIR principles by identifying our PDP and NPDS principles that constitute the historical precedent for their FAIR principles. Moreover, as the comprehensively summarizing phrase for all of our PDP and NPDS principles, we rename them the DREAM principles with the acronym DREAM for Discoverable Data with Reproducible Results for Equivalent Entities with Accessible Attributes and Manageable Metadata. Finally, we define numerically valid quantitative FAIR metrics to monitor and measure the DREAM principles from the perspective of the most important principle, ie, the Fair Acknowledgment of Information Records and Fair Attribution to Indexed Reports, for maintaining fair standards of citation in scholarly research and publishing.","PeriodicalId":285780,"journal":{"name":"2019 11th International Conference on Electronics, Computers and Artificial Intelligence (ECAI)","volume":"187 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124935602","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}

{"title":"Shield: An Intelligent and Affordable Solution for Home Security","authors":"Aimen Shahid, Mazhar Ali, Mariam Eijaz, Sidra Minhas, Nosheen Sabahat","doi":"10.1109/ECAI46879.2019.9042030","DOIUrl":"https://doi.org/10.1109/ECAI46879.2019.9042030","url":null,"abstract":"Reliable home security is vital for progression of our societies. Traditional methods to protect house premises against intruders include security guards and CCTV cameras which is labor intensive, expensive and unreliable. In this paper, we propose a wireless, intelligent, affordable and portable IoT based home security system. The input unit consisting of multiple sensors is placed at the entry points of the house. The SONAR, motion and sound sensor capture the situation at entry points. The sensor data is collected and wirelessly transmitted by NodeMCU to the Raspberry Pi server via an online database. The server uses logistic regression classification algorithm to detect human presence at the gate. Once intruder is detected, alerts are generated to the user and camera mounted on the input unit is turned on to take pictures. Facial recognition unit is also incorporated to detect known versus unknown faces. The information of intrusion including image and timestamp are send to the Shield's mobile application.","PeriodicalId":285780,"journal":{"name":"2019 11th International Conference on Electronics, Computers and Artificial Intelligence (ECAI)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125081238","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}

{"title":"A Method for Improving the Accuracy of Direction of Arrival Measurement based on Sparse Vector Estimation","authors":"Ionela-Cristina Voicu, S. Ciochină, A. Anghel","doi":"10.1109/ECAI46879.2019.9042163","DOIUrl":"https://doi.org/10.1109/ECAI46879.2019.9042163","url":null,"abstract":"This paper presents a method to determine the direction of arrival (DOA) of electromagnetic waves to a linear array of antennas. It is based on Discrete Fourier Transform and uses a sparse vector estimation technique to improve the accuracy. Unlike the other existent methods, this approach allows DOA estimation in a “single shot” data acquisition.","PeriodicalId":285780,"journal":{"name":"2019 11th International Conference on Electronics, Computers and Artificial Intelligence (ECAI)","volume":"39 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127986787","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}

{"title":"Determinants of learning motivation from the perspective of Self determination theory","authors":"Stan Maria Magdalena, Plaiasu Adriana Gabriela","doi":"10.1109/ECAI46879.2019.9042147","DOIUrl":"https://doi.org/10.1109/ECAI46879.2019.9042147","url":null,"abstract":"From the perspective of Self - determination theory, student engagement is considered self-regulated learning since it manifests behaviourally through a permanent focus upon the main objectives, attendance, concentration, time management, positive collaboration with teachers and peers. The present research is an application of Self-Determination Theory (SDT) through which we try to identify the relation between students' motivation (students’ motivation being conceptualized as a continuum having five aspects: amotivation, external, introjected, identified and intrinsec), individual traits (self-efficacy) and the characteristics of the learning environment: perception upon the learning environment (support of autonomy, support of competence and social relatedness).","PeriodicalId":285780,"journal":{"name":"2019 11th International Conference on Electronics, Computers and Artificial Intelligence (ECAI)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115355856","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}

{"title":"Analysis of local binary pattern for emphysema classification in lung CT image","authors":"Eva Tuba, I. Strumberger, N. Bačanin, M. Tuba","doi":"10.1109/ECAI46879.2019.9042056","DOIUrl":"https://doi.org/10.1109/ECAI46879.2019.9042056","url":null,"abstract":"Medical digital images and methods for their processing and automatic analysis have been used for faster and more precise diagnosis. Computer-aided diagnosis systems are widely used by specialists as help for detecting and analyzing suspicions regions in medical digital images. Various types of medical digital images and numerous diseases that can be detected on them make this wide research field. One of the diseases that can be detected in lung CT images is chronic obstructive pulmonary disease or emphysema. In this paper we analyzed the capabilities of texture descriptors, local binary pattern, for detecting and classification of emphysema. Three different types of local binary pattern are used. Instead of using a whole local binary pattern operator output, statistical measurements have been used. Support vector machine optimized by elephant herding optimization algorithm was used for classification. Based on the obtained results, it can be concluded that six statistical information of uniform local binary pattern achieve the best classification accuracy.","PeriodicalId":285780,"journal":{"name":"2019 11th International Conference on Electronics, Computers and Artificial Intelligence (ECAI)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115390400","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}

{"title":"Propagation Models Approach for the Study of Human Specific Absorption Rate","authors":"Loubna El Amrani, T. Mazri, N. Hmina","doi":"10.1109/ECAI46879.2019.9041971","DOIUrl":"https://doi.org/10.1109/ECAI46879.2019.9041971","url":null,"abstract":"We are exposed to several sources of radiation that are harmful. The absorbed dose is calculated by different methods. We apply the one based on the electric field, the conductivity of human tissues and its density. Ibn Tofail University is surrounded by several base stations, the objective of our paper is to estimate the SAR at our university by applying four models of propagation to calculate the received electrical field.","PeriodicalId":285780,"journal":{"name":"2019 11th International Conference on Electronics, Computers and Artificial Intelligence (ECAI)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115522338","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}