Yoong Wah Alex Wong, Ernesto Carlos Pujazon Patron
{"title":"A Review of the Interrelationships between Painting, Photography, Facial Recognition, and Artificial Intelligence Technologies in Portraiture Aesthetics","authors":"Yoong Wah Alex Wong, Ernesto Carlos Pujazon Patron","doi":"10.30958/ajte.11-2-4","DOIUrl":"https://doi.org/10.30958/ajte.11-2-4","url":null,"abstract":"We see faces every day, and all of them leave us with different impressions. Our brains also respond emotionally to new and familiar faces we find in non-animated objects, paintings, and sculptures. To retain such memory of a face or express our feelings, we create portraits. Portraits have fascinated us for millennia. This paper reviews the interrelationships between painting, photography, facial recognition, and artificial intelligence technologies in portraiture aesthetics. The importance of portraits as a subject in artistic creation, studies, and research has led to various advancements in technological innovations. The inevitable role that portraits play in different mediums of art, history of art, communication, and security marks the intersection between humanity and identity, art and technology, as well as its undeniable position within the genre of art. Today the rapid development of digital tools, mobile software, and artificial intelligence allows not only the artist and designer to create portraitures but is also widely used by the public in all walks of life to create portraitures instantly. Driven by the marriage and momentum of art and technology in the field of new media art, will artificial intelligence and modern facial recognition technology take over the role of artists? Keywords: portrait, painting, photography, facial recognition technology, artificial intelligence","PeriodicalId":197899,"journal":{"name":"Athens Journal of Τechnology & Engineering","volume":"63 39","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141110552","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":"Quality Infrastructure and Sustainable Development: An Empirical Economic Analysis","authors":"G. Papanikos","doi":"10.30958/ajte.11-2-1","DOIUrl":"https://doi.org/10.30958/ajte.11-2-1","url":null,"abstract":"Sustainable development is one of the most important goals set by many countries worldwide. The United Nations (UN) has prioritized it as a significant objective within the Sustainable Development Goals (SDGs) program. Sustainable development implies economic growth that benefits both present and future generations without compromising their well-being. Some analysts argue that sustainable infrastructure may be more advantageous when evaluated based on private cost-benefit criteria, although comparisons are needed for clarity. One challenge in testing this hypothesis is the lack of a clear measurable distinction between sustainable and non-sustainable infrastructure at the national or global level. In this study, we utilize two quality infrastructure indices to quantify the extent of sustainable infrastructure. These measures are then applied to a sample of countries to test hypotheses regarding the effect of per capita Gross Domestic Product (GDP) and population on a country’s investment in quality infrastructure. The findings support the hypotheses that per capita GDP and population have a nonlinear effect on quality infrastructure, with both variables having a positive effect, albeit at a decreasing rate. At certain higher levels of per capita GDP or population, the effect turns negative. The policy implications for national governments and international organizations are also discussed, highlighting the need for tailored strategies to promote sustainable infrastructure development without undermining other much needed priorities such as eradicating extreme poverty. Keywords: development, sustainability, per capita GDP, population, quality infrastructure, marginal effects, elasticity, investment gaps","PeriodicalId":197899,"journal":{"name":"Athens Journal of Τechnology & Engineering","volume":"78 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141111795","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":"Early STEAM Education Practice: Application of Graph Theory through Teaching Assistants","authors":"Michihiro Sakai, Hiroshi Miki, Shunsuke Nakamura","doi":"10.30958/ajte.11-2-3","DOIUrl":"https://doi.org/10.30958/ajte.11-2-3","url":null,"abstract":"In the age of Society 5.0, which is the concept of a future society developed by the Japanese government, science, technology, engineering, art, and mathematics (STEAM) human resources with the skills to grasp things from multiple perspectives and solve problems will be required. Furthermore, Society 5.0 indicates that the National Institute of Technology (KOSEN) will become the STEAM center for elementary and junior high school students, as part of the efforts to establish a system that supports STEAM education. Since 2019, we have practiced STEAM education as part of “Liberal Arts Special Lectures” for 4th-year students of the main course (1st year of the undergraduate course). In these lectures, the teachers of liberal arts subjects present themes using their specialties, such as mathematics, debate, and economics. Collaborative learning between students from various departments led them to deep learning, which was a fusion of knowledge and creation. However, there are few opportunities to give back to society, particularly a platform to disseminate the acquired mathematics ability. Therefore, we aim to realize early STEAM education and give back to society by creating STEAM teaching materials on graph theory in open courses for junior high school students between the ages of 13 and 15 with help from teaching assistants who studied graph theory in the liberal arts special lectures. Moreover, through a course on graph theory, the course will not only arouse students' interest in mathematics, but also provide them with clues to develop their multifaceted ideas. Keywords: society 5.0, graph theory, open course for junior high school students, teaching assistants, liberal arts special lecture","PeriodicalId":197899,"journal":{"name":"Athens Journal of Τechnology & Engineering","volume":"37 26","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141109735","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":"Layout Characteristics and Design Principles of Atrium Integrated Space","authors":"Shaoming Lu, Xiujie Li, Zheng Tan","doi":"10.30958/ajte.11-2-2","DOIUrl":"https://doi.org/10.30958/ajte.11-2-2","url":null,"abstract":"With the development of China's cruise tourism industry, it is necessary to study the design and construction of cruise ships, especially the central atrium, which is an important part of public area design and represents the quality and characteristics of the entire ship's design. However, compared with Europe, China's research foundation for large-scale cruise ship design is still lacking. Therefore, studying the spatial layout characteristics of the central atrium is of great significance for improving China's cruise industry. This article focuses on the design principles and characteristics of integrated space layout in the central atrium of cruise ships. By applying basic theories from architecture, shipbuilding engineering, aesthetics, international maritime safety conventions and technology to analyzing representative central atria from 25 typical domestic and foreign cruise brands through data collection and research methods including mathematical statistics methodology, clustering methodology and cases research methodology. Through comparison and generalization of the cases, the study eventually summarizes six overall principles and four structural principles for designing integrated space in the central atrium of a cruise ship. The six overall principles include safety, rationality, applicability, artistry, coordination and technique-economics. The four structural principles include clear space circulation, natural spatial connection, theme coordination & unification and prominent key levels. This study provides insights into designing integrated space in the central atriums of cruise ships that hopefully can be applied in improving China's cruise design work while also supporting guidance for future related fields. Keywords: central atrium of cruise ship, integrated space, design principles, functional layout, decoration style","PeriodicalId":197899,"journal":{"name":"Athens Journal of Τechnology & Engineering","volume":"52 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141112014","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}
J.A. Mateu-Sánchez, E. Giménez-Carbó, Pedro Serna, Carmen Castro-Burguillo, J. Navarro‐Gregori, J. Martí-Vargas
{"title":"Study on the Stresses Released in a Notched, Postensioned Concrete Beam","authors":"J.A. Mateu-Sánchez, E. Giménez-Carbó, Pedro Serna, Carmen Castro-Burguillo, J. Navarro‐Gregori, J. Martí-Vargas","doi":"10.30958/ajte.11-1-1","DOIUrl":"https://doi.org/10.30958/ajte.11-1-1","url":null,"abstract":"Structural prestressed concrete elements (SPCE) face uncertainties in accurately assessing the actual prestressing force. Over time, the initial prestressing force decreases due to several factors. Incorrect estimation of prestress losses can lead to design inefficiencies or structural issues. Monitoring the prestressing force can be achieved through instrumentation during casting, but existing SPCE lack such devices, necessitating indirect methods to determine prestressing force variations. This study focuses on analyzing stresses released in a notched post-tensioned concrete beam using the saw-cutting technique. Surface notches induce local decompression, allowing for strain measurements in the isolated concrete block. These measurements, considering uncertainties in initial prestress and material properties, are analyzed through backward calculations. The findings enhance understanding of saw-cutting and enable future applications to determine effective prestressing force in unmonitored SPCE. Further experimental studies are required to explore prestressing force consistency under monitored conditions. This research provides valuable insights into the potential of the saw-cutting technique as a non-destructive testing method for assessing prestressing force in unmonitored SPCE. Accurately determining the prestressing force is crucial for evaluating existing SPCE and ensuring their structural integrity. Keywords: prestressed concrete, beam, test, saw-cut, notch","PeriodicalId":197899,"journal":{"name":"Athens Journal of Τechnology & Engineering","volume":"26 13","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140435689","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}
Miloš Milosavljević, Katarina Nedovic, Željko Spasenić
{"title":"Predicting Stock Prices Using Deep Learning Algorithms: A Case of Food-Processing Industry","authors":"Miloš Milosavljević, Katarina Nedovic, Željko Spasenić","doi":"10.30958/ajte.11-1-2","DOIUrl":"https://doi.org/10.30958/ajte.11-1-2","url":null,"abstract":"Prediction of stock prices has been a focal point of the financial body of knowledge for decades now. The complexity of stock price prediction involves various factors, including market trends, economic indicators, company performance, news sentiment, and more. Accordingly, stock prices are said to follow the ‘random walk hypothesis’. This systemic factor should be coupled with the limited human cognitive abilities to envisage the dynamics of financial markets. Novel machine learning algorithms have been advocated as potentially supreme replacement for the ‘human-centric’ stock prediction approaches. Hitherto, a myriad of machine learning algorithms has been effectively used for this purpose – ARIMA (Auto-Regressive Integrated Moving Average), XGBoost (Random Forest and Gradient Boosting Algorithms), CNN (Convolutional Neural Networks) or LSTM (Long Short-Term Memory). The aim of this paper is to test the predictive capacity of LSTM on a sample of large global food industry companies. The prices of shares of five companies were observed, namely: PEP (PepsiCo), TSN (Tyson Foods), NSRGY (Nestle), JBSAY (JBS S.A.), KHC (The Kraft Heinz Company), in the period from 01.01.2015. until 1.11.2022. Based on the data from this time range, a stock price forecast for Nov 2nd, 2022, was made. The results indicate very precise prediction since the difference between predicted and real stock price is insignificant. Keywords: stock price, machine learning, long-short term memory, food-processing industry","PeriodicalId":197899,"journal":{"name":"Athens Journal of Τechnology & Engineering","volume":"230 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140437988","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":"The Making of the Liveable City: The Overlooked Aspects of Smart Cities Design","authors":"F. M. Mostafa Hatem","doi":"10.30958/ajte.11-1-4","DOIUrl":"https://doi.org/10.30958/ajte.11-1-4","url":null,"abstract":"This article examines the real potential of smart cities to offer a better experience to residents as people with more than just basic needs. This is done through a lens of design, urban encounters and on-site sensations. The topic is presented and discussed in four main themes; Facilitating the Making of Liveable City and Quality Experience, Mental Associations of the City, The Unique Intimacy of the Night Experience, Emotional Responses: Safety, Stress and Discomfort, and the Taste of the City: Character, Wayfinding and Monotony. This is done to facilitate analysis and communication. Nevertheless, the topics presented here should not be separated from one another. Various qualitative methods were used in the analysis of the Milton Keynes case study; this includes interviews, field observations and visual comparisons with other cases, allowing for a deeper understanding of the different capabilities of the different approaches. The results help to further fill the knowledge gap in the literature on the overlooked aspects of smart cities and provide better information for smart city design. Keywords: smart cities making, sustainability, city brain and smart cities metrics, smart cities standards, smart cities applications, governance, planning and policy","PeriodicalId":197899,"journal":{"name":"Athens Journal of Τechnology & Engineering","volume":"121 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140438440","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}
Aleksa Miletić, Petar Lukovac, T. Naumović, D. Stojanović, Aleksandra Labus
{"title":"A Data Streaming Architecture for Air Quality Monitoring in Smart Cities","authors":"Aleksa Miletić, Petar Lukovac, T. Naumović, D. Stojanović, Aleksandra Labus","doi":"10.30958/ajte.10-4-2","DOIUrl":"https://doi.org/10.30958/ajte.10-4-2","url":null,"abstract":"This paper aims to present a modeling approach for the seamless data streaming process from smart IoT systems to Apache Kafka, leveraging the MQTT protocol. The paper begins by discussing the concept of real-time data streaming, emphasizing the need to transfer data from IoT/edge devices and sensors to Apache Kafka in a timely manner. The second part consists of a literature overview that shows the analysis and systematization of different types of architectures in the broad sense of crowdsensing, followed by specific architectures regarding edge and cloud computing. The methodology section will propose an infrastructure and data streaming architecture for smart environment services, such as air quality monitoring. Lastly, a discussion about results and future development will be shown in the last two sections. The proposed integration approach offers several advantages, including efficient and scalable data streaming, real-time analytics, and enhanced data processing capabilities. Keywords: real-time data streaming, smart healthcare, Apache Kafka, data integration, stream processing","PeriodicalId":197899,"journal":{"name":"Athens Journal of Τechnology & Engineering","volume":"253 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139239709","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":"The Necessity of Developing Soft Skills in STEM Areas in Higher Education, with Special Focus on Engineering Training","authors":"Ildikó Holik, István Dániel Sanda, György Molnár","doi":"10.30958/ajte.10-4-1","DOIUrl":"https://doi.org/10.30958/ajte.10-4-1","url":null,"abstract":"One of the challenges of higher education today is to prepare students for the demands of the labour market. A goal becoming ever more important is that, in addition to the so-called hard skills (knowledge obtained from textbooks), the development of soft skills (inter- and intrapersonal skills) also be emphasised. It is a particularly important question in the field of STEM (science, technology, engineering, mathematics), and especially in engineering education, which abilities and skills are essential for new graduates on the labour market. The aim of our questionnaire survey, conducted in 2022, was to map the specifics of soft skills among engineering students. A total of 208 engineering students filled in our online questionnaire. We examined the characteristics of soft skills based on a list of 39 items. The 5 soft skills considered most important were problem-solving, reliability, resilience, communication and independent work. Students regarded themselves as most characterized by reliability, problem solving, independent work, responsibility and cooperation. Our research results drew attention to the importance of developing soft skills, especially social skills. Keywords: STEM, soft skills, social skills development","PeriodicalId":197899,"journal":{"name":"Athens Journal of Τechnology & Engineering","volume":"3 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139240536","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":"Automatic Generating System of Information Security Policy","authors":"Kiyoshi Nagata","doi":"10.30958/ajte.10-4-3","DOIUrl":"https://doi.org/10.30958/ajte.10-4-3","url":null,"abstract":"Information is indispensable in any organization, and its security must be properly guaranteed. At present, information security in an organization includes not only confidentiality but also integrity and availability, and means a balance between them. Establishing an information security policy is effective as a means for that purpose, but it is considered to be a high hurdle for organizations such as SMEs, which have neither personnel nor financial leeway, to tackle it. We thought that a system to help establish information security policies was necessary, so we proposed a framework and tried to implement it in application programs. At present, the creation process of the basic policy by presenting the template and the creation of the organizational profile are implemented. In this paper, we propose a method to reflect the characteristics obtained from the organization profile not only in the basic policy but also in the following countermeasure standards and implement it in the application program. Keywords: security policy, information asset, ontology, generation system, SMEs","PeriodicalId":197899,"journal":{"name":"Athens Journal of Τechnology & Engineering","volume":"133 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139239925","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}