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International Journal of Visual and Performing Arts, Volume 3, pp 71-84; https://doi.org/10.31763/viperarts.v3i2.421

Abstract:
Pejaten pottery is one of the aesthetically unique potteries. The pottery has various ornaments such as god ornaments, god weapons, barong, and animals and plants. These ornaments are often found in Hindu worship ceremonies. This shows that, aesthetically, Pejaten pottery cannot be separated from Hindu aesthetics, so it is interesting to study. The problem is how the implementation of Hindu aesthetics in Pejaten pottery works and how Hindu aesthetics is used as a strategy for preserving Hindu aesthetics in Pejaten pottery. This study aims to determine the basis for applying Hindu aesthetics as a strategy for preserving Pejaten pottery. This qualitative research took the location of Pejaten Village, Kediri District, Tabanan Regency, Bali. Data were collected by direct observation, interviews, and also collecting literature data related to Hindu aesthetics. The aesthetic analysis process of Pejaten pottery is carried out using the concepts of Rwa bhineda (balance), satyam (truth), sivam (holiness), sundaram (beauty), and Pangider Bhuana (Pangider-ider). This study indicates that the ornaments and various forms of Pejaten pottery have a strong Hindu philosophical foundation, and this shows the religious nature of the Pejaten pottery craftsman. The conclusion is that the religiosity of the Pejaten pottery craftsmen is very influential in their creative process, and this is significantly able to maintain the preservation of the Hindu aesthetics of Pejaten pottery, Bali
International Journal of Visual and Performing Arts, Volume 3, pp 98-109; https://doi.org/10.31763/viperarts.v3i2.505

Abstract:
In recent years, the interdisciplinary approach to art has gained popularity in the field of art studies. Numerous art studies transcend creative disciplines, allowing for the production of novel ideas and works. This study aims to understand the multidisciplinary art and design processes at the Institut Kesenian Jakarta. The data were acquired by observation and a review of the literature. Observations were made in order to collect field data about the work of art. This observation method was employed while visiting numerous exhibitions and performances at the Institut Kesenian Jakarta, and the literature was sourced by reading articles published in foreign magazines. The examination focuses on the difficulty inherent in diverse art practices. This study discovered that collaborative work increases the process of knowledge exchange between members and groups. As a result, an art ecosystem is developed from the standpoint of art creation and study. This research contributes to the discovery of new creative models or value chains and the provision of fundamental knowledge to develop a diverse art ecosystem. Art colleges can also contribute to interdisciplinary understanding and culture by fostering knowledge and abilities in art creation that are applicable across fields and are not constrained by the nomenclature of a single 'subject of arts'
International Journal of Visual and Performing Arts, Volume 3, pp 110-116; https://doi.org/10.31763/viperarts.v3i2.516

Abstract:
In the aesthetic study, semiotic interpretation is an intellectual approach to deciphering the hidden meaning of an aesthetic achievement's taste. The study's goals include comprehending the artwork's structure, which necessitates an in-depth interpretation of the language by translating it into official symbols. This research method uses a linear formation sample with semantic attributes attached to the Kufic calligraphy of artworks. The findings reveal that the emergence of geometric lines in a linear composition has a decorative abstraction that may be used to argue that the artist intended to place it there and that this is a symbol of the cosmos and its existence. This study adds to our understanding of compositional insight in Arabic calligraphy as an expressive aesthetic expression that alludes to the text in the sense of meaning that lies underneath the direct meaning
Aleksandra Naumoska, , Aleksandra Blazhevska, Marina Stojanovska
International Journal of Education and Learning, Volume 4, pp 89-99; https://doi.org/10.31763/ijele.v4i1.616

Abstract:
The Nearpod software application was implemented in chemistry teaching, thus keeping in touch with current technology appropriate for its use in the education. This is the first study in our country focusing on the usage of the Nearpod as an e-module-based learning media aimed to increasing students’ motivation in chemistry classes, through their engagement during the lesson and active participation. The total sample consisted of 244 9th grade students and 7 teachers from 7 primary schools. This research was based on data collection by modified SMTSL and IMI questionnaires and individual interviews with students and teachers. The data were analyzed and the mean, standard deviation and Cronbach’ alpha reliability coefficient were calculated, which revealed acceptable internal consistency for all subscales. Data obtained from the APQ-N instrument showed that most of the students found this activity enjoyable and interesting, and felt that it was important for their success and progress, but it also enabled them to achieve better results and improve their attention during the online classes. SMTSL-N questionnaire revealed that the students had medium motivation toward chemistry leaning overall. Independent t-tests results stated that there is no significant difference between male and female students’ mean scores. The results obtained in this study, including the interview data as well, indicated that Nearpod-based activities positively influenced students’ motivation in learning chemistry. Nearpod has a great potential to be applied during the face-to-face teaching as a hybrid model in the future, thus making teaching more interesting and less monotonous.
International Journal of Education and Learning, Volume 3, pp 183-190; https://doi.org/10.31763/ijele.v3i3.101

Abstract:
Involvement of children with special educational needs in inclusive education at schools of general education in the Republic of Azerbaijan is one of the priority issues of the state. Many reforms in the education system, particularly at schools, need to be carried out to promote inclusive education. This research emphasizes the importance of implementing the student-centered education approach in the general education system to make schools inclusive in the country. As a ground for this, the article, having cited from scientific papers of different researchers, points out that, for example, a student-centered education allows a school to meet the different needs of students and take the specifics of each student into consideration. The level of progress of student-centered learning was assessed in the conducted research through studying teachers’ instructional methods at schools operating in the education system of Azerbaijan. As a result of the survey and focus group discussions conducted with teachers within this research, it was revealed that although teachers understand the positive impact of a student’s learning through student-centered methods, in most classes, they continue teaching lessons in a teacher-centered style due to several school or out-of-school factors. The result is that teacher-centered classes still being conducted at schools are not only the incompetency of teachers, but as a result, it is not possible to achieve the development of student-centered learning by improving only teachers’ skills. Many factors obstruct the change from teacher-centered learning to student-centered learning in the classroom. The identification of school culture and the classification of culture-forming factors are also discussed in this research.
International Journal of Education and Learning, Volume 3, pp 175-182; https://doi.org/10.31763/ijele.v3i3.159

Abstract:
The purpose of this qualitative study was to explore conceptual understanding of geography teachers of Inquiry-Based Approach (IBA) for teaching Geography subject. The researcher adopted the case study research design, and the study was conducted on eleven geography teachers from four Secondary schools at Morogoro Municipality, Tanzania. The findings indicate a mixed conceptual understanding of the interviewed geography teachers on the meaning of IBA although some of them seems to experience the use IBA features in their teaching. A lesson can be drawn from this study to inform the area of teaching and teachers development in Tanzania. The study recommended that to make the most use of inquiry-based approach of teaching and learning especially in geography subject, teachers have to be updated now and then on how to effectively use it in the classroom.
International Journal of Visual and Performing Arts, Volume 3, pp 85-97; https://doi.org/10.31763/viperarts.v3i2.545

Abstract:
Bongkel is the music of a farming community that developed in Gerduren Village, Purwajati, Banyumas, Central Java. This music only uses a four-tone slendro tuning. The current condition is that it is very difficult to find bongkel players; if there is no tracking of information about the history of bongkel, then in the future, it will be very difficult to find important information about bongkel. The purpose of this research is to trace and document the bongkel, from the side of its early history to its musicological review. The research method used is observation and interviews to explore oral sources. The use of oral sources is done because, until now have never received written data that specifically discusses bamboo music, especially in the Banyumas language. The interview focused on Kasmudi, Ibu Kunes, Maryadi Kresek and several other informants who were selected as sources, especially Kasmudi (a bongkel player) because he was the perpetrator the main witness. Kasmudi is the fourth generation of his entire family, which is a bongkel player on average. There are three types of data analyzed, including the history of the appearance of the bongkel, organology data, and musicological data. The grouping of data is done based on the three types of data, and the analysis is done by referring to the grouping of the three types of data. The results of this study found that the strongest characteristic of bongkel music is the imbal technique; besides that, bongkel is one of the musical instruments that became the forerunner to the development of angklung buncis, krumpyung, and calung music. The contribution of this research provides important information for the interest of Banyumas musical studies, especially for the development of bamboo music
International Journal of Education and Learning, Volume 3, pp 76-93; https://doi.org/10.31763/ijele.v3i2.217

Abstract:
Some of the android-based mobile game genres that are currently very popular such as adventure, first-person shooter, fighting, racing, and others. This development should provide opportunities in the field of education to make games not only for fun but also for education. The purpose of this study was to produce educational games that were valid, practical, and had potential effects to improve the mathematical understanding of the relationship and function of junior high school students. The research method used is RD (research development) using the ADDIE model. The data collection techniques used were documentation, interviews, and tests of mathematical comprehension abilities. The results obtained from the game "The Incredible Boong Gi" are valid with an average of 96.70% of expert validators and media validators. The results of the practicality questionnaire from 9 students averaged 90.32%. The results of data analysis show that educational RPG games have valid, practical criteria and have potential effects. RPG games are valid in terms of relevance, systematics, student-centered compatibility, game design, and compatibility. RPG games get practical results from implementation in small groups. Furthermore, the educational RPG prototype has the potential effect of improving students' mathematical understanding abilities. RPG games provide a fun learning atmosphere, by playing students can also learn. Making RPG games is also not difficult, according to the competence of students to be achieved and challenges the creativity of the teacher.
International Journal of Education and Learning, Volume 3, pp 165-174; https://doi.org/10.31763/ijele.v3i2.400

Abstract:
This study aims to (1) know the process of creating e-module-based learning media on energy materials and their changes in Nearpod applications for elementary students, (2) know the feasibility of energy learning e-module media products and their changes to the Nearpod application for elementary school students who are eligible for use in Natural Science learning. This study uses a Research and Development (RD) model. Based on preliminary studies, there is still a lack of interactive learning media based on technology to support and increase the enthusiasm of students' learning. A learning media is needed that can help teachers and students with learning activities. This research is based on previous preliminary studies that have been carried out, and the aim is to conduct a feasibility test of a research product developed. The development model used is the ADDIE model. The data collection techniques used are interview and questionnaire methods. Data analysis used descriptive percentage analysis. The results of the analysis showed media expert validation = 72.31% with Agree criteria, Material experts = 83.07% with Strongly Agree criteria, Feasibility test of teachers at SDN 1 Tukak Sadai and SDN 2 Tukak Sadai = 97.86% with the criteria of Strongly Agree and the product feasibility test on students = 95.28% with the criteria of Strongly Agree. This contributes to the Nearpod-Based Development of E-Modules to Improve the Learning Achievement of Elementary School Students.
International Journal of Education and Learning, Volume 3, pp 103-113; https://doi.org/10.31763/ijele.v3i2.374

Abstract:
This study aimed to unpack higher education teachers’ beliefs about grading decision making. A qualitative approach was employed in this study to answer the research question. In-depth semi-structured interview as the main data collecting technique was utilized to gather any information from higher education teachers. Four higher education teachers with different educational backgrounds and teaching experiences volunteered to be the participants. Three main themes were generated from the data i.e., the factors considered in grading decision making, the most challenging parts in grading, and handing students’ complaints about grades. This study indicates that developing assessment rubrics, discussing them with students, and documenting them in the learning contract may be effective strategies for teachers to remind the students of the course requirements to reach minimum criteria of mastery learning.
International Journal of Education and Learning, Volume 3, pp 94-102; https://doi.org/10.31763/ijele.v3i2.193

Abstract:
Physical activities among young people provide an opportunity to develop the values, and skills for an active lifestyle and high self-esteem. Physical Education as one of the subjects in schools covers this essential role, although its’ provision mostly in the developing world has declined in many countries. This study assessed the physical activities, resources, and challenges in the implementation of Physical Education program among public primary schools in Kampala, Uganda. It was a descriptive survey design employing a semi-structured questionnaire to collect data among teachers and headteachers. Data were analyzed using frequencies, and Pearson product-moment correlation was determined at 0.05 level of significance. Findings reveal availability of facilities (r=0.374), trained personnel (r=0.654), equipment (r=0.529) and school enrolment (r=0.622) having a significant relationship with implementation of PE program. Traditional games, athletics, and ball games were the main activities. Insufficient resources and less value attached to these activities remain the major challenges. Resource allocation and sensitization on the value of physical education could enhance the implementation of the physical education program in public schools.
Salima Maouche
International Journal of Education and Learning, Volume 3, pp 65-75; https://doi.org/10.31763/ijele.v3i1.100

Abstract:
Some decades ago, Algeria began a transformation from a planned economy to a market economy, for which English became a requirement. The Algerian government believes that promoting English language learning is an attempt to become competitive globally. This emphasis on English resulted in various curricular reforms, influenced by the economic globalization, as the nation attempted to shape its educational systems to provide the skills for a growing global economy. Through this contribution, we believe that contributors have to rethink the role of English in education, employment, social status, and financial development. Moreover, in pedagogy, it is better to shift from ESP to teaching TEGCOM (Teaching English for Globalized Communication), allowing interaction between global forces in specific socio-cultural contexts. Therefore, in working together, the Algerian contributors can prove their English ownership and exercise their agency in their different market creative practices.
International Journal of Education and Learning, Volume 4, pp 81-88; https://doi.org/10.31763/ijele.v4i1.615

Abstract:
In a distance learning environment, the use of appropriate instructional material is an essential element of a successful teaching and learning process. Because of the pandemic, teachers were required to use the available learning resources to ensure learning continuity. In this paper, the main objective is to develop and validate instructional material that would assist teachers in delivering the lessons through a modular learning approach. A descriptive normative survey was utilized to determine the validity of the developed workbook for Research I. The results showed that the workbook met the prescribed requirements regarding adequacy, clarity, objectives, suitability, and usefulness. It was found to be adequate, clear, coherent, attainable, suitable, and useful for teachers and students as they discover learning through research. Thus, the workbook is recommended as instructional material in teaching the subject and promises a potential for a significant contribution to education and learning. Future research may also be explored, focusing on the effectiveness of the material developed
International Journal of Education and Learning, Volume 3, pp 232-240; https://doi.org/10.31763/ijele.v3i3.435

Abstract:
The study aims at exploring the final examination test items to identify the quality of the test items as an evaluation instrument. The study is descriptive quantitative research that pursues the document analysis to view the Final Semester Examination test item characteristics of Pancasila and Civic Education in Grade VIII of State Madrasah Tsanawiyah (Madrasah Tsanawiyah Negeri 3 or MTs Negeri 3) in the Regency of Gunungkidul, the Province of Yogyakarta Special Region, within the 2020/2021 Academic Year. In analyzing the data that have been collected, the researchers have adopted the approach of Item Response Theory (*IRT) using the R Program assistance. The results of the study show that the Final Semester Examination test items of Pancasila and Civic Education are more appropriate to be analyzed by using the SPL Model. The degree of difficulty for these items falls into the “Good” quality within the range -4.0 until +4.0. On the contrary, the item discrimination capacity ranges between 0.079 and 4.891 with the “Moderate” quality.
International Journal of Education and Learning, Volume 3, pp 241-252; https://doi.org/10.31763/ijele.v3i3.315

Abstract:
Many education institutions implement e-learning to replace traditional face-to-face teaching and learning activities due to the Covid19 pandemic. The situation forced students and teachers to adapt to the new normal of teaching and learning activities. This study aimed to evaluate the teachers' intention to use e-learning after almost a year after the Covid19 pandemic widespread began, using Technology Acceptance Model (TAM) approach. The partial Least Square-Structural Equation Model (PLS-SEM) technique was employed to evaluate the intention to use e-learning. Using 291 samples of Teachers in Indonesia, this study shows that the TAM approach describes the antecedent of teachers' intention to use e-learning during a pandemic. Perceived ease of use, perceived usefulness, and job relevance are determinant factors of teachers’ intention to use e-learning during the pandemic.
International Journal of Education and Learning, Volume 3, pp 114-123; https://doi.org/10.31763/ijele.v3i2.121

Abstract:
Expensive technological hardware and software, prohibitively high cost of installing e-learning systems, the dedication required in terms of time and skills development, and experts required to service e-learning resources systems are some challenges developing countries face in using e-resources for teaching and learning. In the context of these challenges, this study was conducted at a library of a secondary teachers’ college Y in Zimbabwe to gain insight into the nature of E-Resources Integration. Qualitative research methods involving interviews, observations, and document analysis were used to generate data. Interviewees who volunteered were pre-services teachers, teacher educators, Librarians, and ICT personnel managing the e-resources system. Through thematic analysis, data were presented as verbatim, and narratives were interpreted to unpack meaning imbued. Findings show that power outages, poor internet connectivity, lack of e-resources awareness by prospective users, competencies in using e-resources, and computers, were factors that inhibited effective e-resources use for teaching and learning. As a recommendation, libraries should design and provide e-learning resource services that motivate learners consistent with their information needs, increasing the probability of using such resources.
International Journal of Education and Learning, Volume 4, pp 13-27; https://doi.org/10.31763/ijele.v4i1.474

Abstract:
L2 reading instruction has tended to focus on the explicit teaching of reading strategies on the grounds that a strong grasp of reading strategies would lead to better reading comprehension skills. We argue that such teaching practice is very much anchored in the cognitive-psychological based theory of reading that have characterized the field of SLA over the years. In light of this, we seek to present a summary of various theories, research findings and arguments around the nature of reading in SLA. The data were collected through electronic database such as Eric, Google Scholar, Proquest and Wiley Online Library. We discuss three major reading models: bottom-up, top-down, and interactive model, alongside metacogniton theory, extensive and intensive reading as well as reading assessment. We believe that a sound understanding of these cognitive based processes underlying reading activity could serve as the basis for improvement in reading instruction. However, there is an inherent need to consider sociocultural aspects of reading in order to help students sustain reading engagement over an extended period of time toward the formation of reading habit. We conclude the discussion by suggesting that as reading actvity becomes increasingly digitized, more qualitative research studies exploring student’s individual experience are highly recommended, in complimentary to the cognitive-psychological based theory of reading.
International Journal of Education and Learning, Volume 4, pp 65-80; https://doi.org/10.31763/ijele.v4i1.397

Abstract:
One of the goals of vocational revitalization is the improvement of educators/teachers’ competence. This is considered important as the competence is the main capital for managing learning process, besides knowing the functions and duties as a teacher in the classroom, which can be in the form of the teachers’ performance. However, these two things are not obtained instantly, but a process and several factors have influenced them as well. This study aims to find some factors that can affect competence and performance based on the previous research as well as potential factors that likely influence. By using the Systematic Literature Review (SLR) method, seven factors and three potential factors along with their measurement indicators have been proven to influence the competence and the performance. Thus, it can be concluded that to find out the relationship between potential factors such as social media, a religion and a healthy lifestyle on the teachers’ competence and performance, it is necessary to prove the findings in this article.
International Journal of Education and Learning, Volume 3, pp 156-164; https://doi.org/10.31763/ijele.v3i3.255

Abstract:
As a major offshoot of the national Egyptian movement that goes back to the beginning of the 20th century, a number of national leaders, Enlightenment pioneers, and social thinkers called for the establishment of an Egyptian university. These individuals hoped for this to be a lighthouse of liberal thought and the basis of a comprehensive academic revival in all fields of knowledge in order to be able to cope with international scientific and academic advancement. By May 1908, the Royal Palace chose the administrative council for the project of the Egyptian University (EU). When the university began, not a single Egyptian could meet all its ideal criteria for professors. The EU did borrow staff from the schools of law for its criminology, economics, and law programs. Dar al-Ulum constructed the university between 1908and 1925, which had at least nine professors. The other source of interim professors was Europe. The European professors fall into two categories: those who lectured in French or English on topics unrelated to the Middle East and the orientalists who lectured on Arabic and Islamic subjects. France, Italy, England, and, to a lesser extent, Germany all jockeyed for influence at the university. European professors dominated the first generation of faculty members while promising that Egyptian students were sent abroad to train for future teaching positions. In the present review, light will be shed on the large role played by those elite European professors in determining and pushing the university forward to stand with the Egyptian professors in order to examine the development of European-style education within the EU and, to a lesser extent, the cultural influence of a number of European countries in Egyptian education.
International Journal of Education and Learning, Volume 3, pp 191-198; https://doi.org/10.31763/ijele.v3i3.175

Abstract:
Accounting career has received criticisms right from the University students, Accounting Professional Bodies and the Business World at large. Organizations both public and private sectors have all pointed figures at the poor quality of accounting graduates which Universities are producing. The main objective of this study was to assess the synergetic effect of Initial Accounting Courses, Students Performance and Professional Guidance on Accounting Career. The rationale was that students who performed well in the Initial Accounting courses were expected to excel in the other advanced accounting courses, given the chronological nature of accounting courses. Students were also expected to transfer the same knowledge to the accounting practice in the business world. This would be possible due to students’ relatively higher understanding and appreciation of accounting. It was also expected that Professional Guidance specific to the Accounting Career gave students adequate insights into the discipline that heightened the probability of their choosing Accounting Career. A conceptual framework was used to explain the key factors studied that indicated the interactive relationships amongst them. Four Theories were used including; Wearing Two Hats Theory, Social Learning Theory, Theory of Consumer Behaviour and Theory of Reasoned Action. The population of the study were the Bachelors of Commerce students from 29 Kenyan Universities. The sample comprised of the selected Bachelors of Commerce students from the selected twelve Kenyan Universities. The study adopted a cross sectional research design with a mixture of purposive and stratified random sampling techniques. A pilot study was conducted to test the validity and reliability of the study instruments. A researcher designed questionnaire was used to collect data from sampled students. Logistic regression model was used to test the null hypothesis which was rejected at 5% level of significance. The findings revealed a positive significant synergetic effect of The First Course in Accounting, Students Performance and Professional Guidance on Accounting Career. The study concluded that the synergetic effect of the three variables were greater than the sum of the individual variables. The study’s contribution to knowledge is that the survival of Accounting Career should be pegged on the synergetic effect of the First Course in Accounting, Students Performance and Professional Guidance. Unless this is adopted, Accounting Career’s survival will still be at a risk and therefore remain unresolved.
International Journal of Education and Learning, Volume 3, pp 124-134; https://doi.org/10.31763/ijele.v3i2.261

Abstract:
As the most prominent features uttered by EFL teachers in classroom interactions, questioning plays important roles to invite student responses. This study was an attempt to analyse questioning practice employed by EFL teachers in terms of ways or strategies namely contingency, convergence-divergence, and syntactical form in their interactions with students. Data were gathered from four purposefully chosen English teachers’ questions employed during their interactions with students at a larger corpus project of UMSpEAKs (Universitas Negeri Malang Spoken English in Academic Kontexts), thus, transcribed and analysed following the principle of Conversation Analysis (CA). The Conversation Analysis revealed that the contingent questions differently appeared for each teacher. The most question type used to be contingent was a clarification. Besides, the teacher questions were mainly convergent and divergent by means of display questions that consistently evolved student contributions and enlarge the talks. Meanwhile, the most frequently occurring question- syntactical form was W-h questions and followed by yes-no question forms. The W-h questions having more syntactically complex utterances than yes/no questions were powerful and would prompt more students’ responses. Meanwhile, yes/no questions were posed when the teachers felt that students have difficulty in answering or understanding the W-h and how/what about questions and invited short responses. Thus, contingency, convergence-divergence, and syntactical form that was differently constructed following the commodity exchange in the classroom discourse were very beneficial to invite student responses, discursively carry functions, and extend the classroom discourse.
Yahya Muhammed Bah
International Journal of Education and Learning, Volume 4; https://doi.org/10.31763/ijele.v4i1.605

Abstract:
Education is one of the best tools to transform lives and living conditions especially with science and technology. Over the years, governments and families have been trying to ensure children access quality, relevant and affordable education. In the areas of science and technology particularly at tertiary levels, possessing strong mathematical knowledge and skills is a must. However, though the precise number is yet to be documented, children have been woefully failing the subject causing fears and panics in the general population more especially in the parents and government authorities as the future of development seemingly anchored on science and its applications. The fundamental rationale for the systematic literature review is to examine the causes of poor performance in mathematics among senior secondary school students; share knowledge to spark and inspire a process that will usher in appropriate interventions in eradicated the menace. A systematic review of the literatures using information collected from different sources was actuated. Google search engine, google scholar, web of science, scopus database, etc. were used to search for these articles. During the search numerous combinations of words and phrases were used to ensure articles reflect the most recent knowledge and scholarly works. In essence, only peer-reviewed articles published after 2000 were selected except extracts perceived to be of fundamental mileage to the study. However, articles published by staunch international organizations working in education for years and has produced indefatigable knowledge in the field were stealthily appraised. The study revealed that the causes of poor performance in mathematics among senior secondary school students are multifaceted and include causes located in personal status, erroneous beliefs, students, teachers, teaching methods, language competence, teaching and learning materials, parents and family members, schools, policies, society, infrastructures, and government. The poor performance in mathematics among senior secondary school students is negatively impacting their access to tertiary institutions for higher education in order to effectively take part in future national developments and worse of all pushing them to commit crimes as they cannot secure jobs in the highly competitive job market..
International Journal of Education and Learning, Volume 3, pp 213-221; https://doi.org/10.31763/ijele.v3i3.353

Abstract:
The purpose of this study is to identify the importance of career services and career service delivery to Islamic college students. The implementation and importance of career services for each campus is different, depending on the direction of policy and leadership. The approach used in this research are a survey using a career service instrument that has been developed. Respondents of this study were 786 students from various departments and grades at UIN Sunan Kalijaga Yogyakarta Indonesia. The research findings indicate that 98.9% of each student needs career services in the form of adjustment to majors, development of potential and personal skills, and career preparation related to the world of work, while the implementation of career services that have been running is relatively different for each department and faculty. In the Tarbiyah and Teacher Training faculties, they get more career services with an average (103.6) such as getting great opportunities for their students to do internships before graduating, but in the ad humanities social sciences and humanities faculty with an average (89.1) they still need improvement of career services for students.
International Journal of Visual and Performing Arts, Volume 3, pp 127-136; https://doi.org/10.31763/viperarts.v3i2.439

Abstract:
The transformation of folklore as oral literature is often used for traditional performances. Its function is to strengthen the resilience of a local culture. This research aims to gain better knowledge about the transition process of traditional theatre performances to increase the awareness of the local community. The method used in this research uses a qualitative approach with an explanatory analytical approach and focuses on a multidisciplinary approach that comes from the theory of several branches of science. The results obtained from this study, namely the oral literature of the archipelago, have an important role in historical knowledge. The use of oral literature in stage performances makes a simple story more complex, one of which is manifested in the performing arts of the Dolalak dance. The conclusion that can be drawn is that the transformation of folklore as oral literature into stage performances provides a spiritual experience for the community because it is packaged interestingly through the dance movements. This article will contribute to the use of oral literature as a source of stories in traditional performances so that the results can be used to nurture and maintain the resilience of a local culture
International Journal of Education and Learning, Volume 3, pp 222-231; https://doi.org/10.31763/ijele.v3i3.283

Abstract:
There are many ways in which education 4.0 can continue to develop rapidly and coexist with the development of increasingly advanced technology to bond with each other to be balanced, one of which is using blockchain technology that is integrated in the education sector for various purposes. The main direction in developing global integration in education includes the creating a single educational space and optimization of the interaction between education and stakeholder relationships. The blockchain method implemented in education 4.0 was not widely used because initially, blockchain was only known for the financial sector. Blockchain is comprehensive and appropriate for this era, as blockchain offers technology, trust, and transparency by replacing the previous system with a new system. A particular problem is a need for innovative research to provide new insights into blockchain transformation inf education and application opportunities that can be accepted and used optimally. Researchers used the vast mind method and literature study. The goal is to inform the added value of blockchain that is applied in education as needed, the renewal of research and opportunities for implementing blockchain in education 4.0. The blockchain technology that can be used in education, for example, is archiving, learning, certification and other.
Dwi Santoso,
International Journal of Education and Learning, Volume 3, pp 145-155; https://doi.org/10.31763/ijele.v3i2.314

Abstract:
This Study discusses WhatsApp conversations between students and teachers used while learning English used in teaching activities to determine the type of politeness used by students in WhatsApp conversations during English learning at the al-Lutfah Islamic school. This research uses descriptive qualitative as the research method. The research subject is Student and teacher, while the study's object is politeness strategies in conversation WhatsApp that may contain politeness. The data of this research is the WhatsApp conversation of having politeness strategies. It uses observation and takes notes to collect the data. The data analyzing method is metode agih. The participants of this research are teachers and students at Al-Luthfah Islamic school. The transcriptions were analyzed and discussed based on the politeness of Brown and Levinson (1987). This study's findings reveal the kinds of politeness types used by Al-Luthfah Islamic students to encode politeness or politeness. In the form of several messages when replying to several statements in the WhatsApp group. These expressions are in the form of greetings, gratitude, ask questions, express opinions, and several forms of these messages are stages of obtaining data, identifying data, looking for standards, classifying types of politeness, and finding their function of the politeness used. And analyze the data.
International Journal of Education and Learning, Volume 3, pp 199-212; https://doi.org/10.31763/ijele.v3i3.295

Abstract:
Students’ proof construction is one of the important abilities in learning mathematical knowledge. To understand the development of Students’ proof construction of the fourth-grade students in Guilin, 15 fourth-grade students were selected to conduct an exploration activity about the sum of the inner angles of a triangle is equal to 180°. Through the observation and interview with students in the activities, we conclude that the reasonable ability of excellent students has coherence and integrity, the middle level students’ proof construction is ordinary and still need to improve, and the Low Students’ proof construction students are weak, and it is difficult to understand the research object. The teacher must have a creative and interesting method to teach students to improve Students’ proof construction from the research process and results.
International Journal of Education and Learning, Volume 4, pp 1-12; https://doi.org/10.31763/ijele.v4i1.530

Abstract:
The quality of Indonesian nurses promoted to work abroad is greatly affected by their ability to communicate in medical English. A number of previous studies have explored the effectiveness of using digital storytelling in the foreign language learning process. However, research on the application of this method to improve communication competence in ESP nursing is still very limited. This research aims to test the effectiveness of using the Digital Storytelling (DST) method on nurses’ English communication competence. Using classroom action research design, with 125 nurses’ samples, the study proves that there is a significant effect on nurses' communication skills (grammatical competence, strategic competence, and sociolinguistic competence). In addition, the majority of the students responded positively to the use of this method, particularly in terms of increasing their confidence in communicating in English in general and medical English in particular. The strength and limitations of this method are also discussed in this study.
International Journal of Visual and Performing Arts, Volume 3, pp 117-126; https://doi.org/10.31763/viperarts.v3i2.509

Abstract:
Many researchers are fascinated by creativity and innovation. The question of creative resources at the Yogyakarta Guitar Orchestra (YGO) becomes the primary topic to be discussed in this paper. The premise is that the innovation and creativity framework embedded in YGO's creative resources directly impacts and influences the creative process so that the role of creative resources becomes visible. The goal of this study was to establish a model for YGO's creative resource management to manage innovation and creativity effectively. The research method is grounded theory, with data collected via interviews, literature reviews, and photo documentation. The data analysis was conducted using the innovation paradigm and the creative resource management perspective on creativity. The study's findings include information about how YGO acts as an accelerator for creative resources in order to foster innovation and creativity. This contribution can assist policymakers in directing resources and actions toward YGO or similar communities in order to foster the future development of a high-quality innovation and creative ecosystem
International Journal of Education and Learning, Volume 4, pp 41-57; https://doi.org/10.31763/ijele.v4i1.440

Abstract:
The Revolution of Industry 4.0 threatens the existence of the science of Islamic education if the curriculum is not outcomes based. The development of Islamic higher education curriculum allows the creation of new academic subjects which integrates learning, research and service to produce innovative and tested work. The aim of this research is to put forward a curriculum development model or prototype as a strategy to maintain the science of Islamic education learning programs in the era of Industry Revolution 4.0. The research approach is qualitative of the phenomenological type. The setting of the research is the learning program for the Masters in Islamic Education (Magister Pendidikan Agama Islam – MPAI), Faculty of Islam, Ahmad Dahlan University. The choice of this research setting is because the curriculum of this learning program has created new academic subjects which have an outcome-based integrated learning, research and service, as a result on reaching the three year point it has gained full accreditation from the Higher Education National Accreditation Board (Badan Akreditasi Nasional–Perguruan Tinggi – BAN-PT). Respondents in the research are the MPAI academic community which comprise six lecturers including the Chair of the Study Program and Secretariat of the Study Program together with eighty students studying at the masters level. The research results show that the MPAI learning program has created two new academic subjects that is, Islamic Education Studies and Intellectual Property Rights (Hak Kekayaan Intelektual – HKI) together with Neuroscience and Islamic Education Theory. Both new subjects have mobilized research which has produced innovative works obtaining more than sixty intellectual property rights and occupying the first rank in publications in national and international journals in the the Sinta Index 2020 data base. This shows that this learning program is able to maintain a scientific existence in the era of the industry revolution through outcome-based curriculum development.
International Journal of Education and Learning, Volume 4, pp 28-40; https://doi.org/10.31763/ijele.v4i1.517

Abstract:
This study aims to explore students’ perceptions of the implementation of online learning during the pandemic in terms of gender perspective, ownership of social media, and duration of internet access. This research was conducted by a survey involving 87 students (P = 51% and L = 49%) in junior high school. Data were analyzed using Logit Value of Item (LVI) and Wright map combined with Logit Value of Person (LVP). Students’ perceptions were reviewed based on gender, social media ownership, and duration of daily internet access. The results showed that, in general, students have a positive perception of online learning. Based on gender, male and female students have almost the same positive perception of online learning. In terms of ownership of social media accounts, students with one account or two social media accounts have a perception of online learning above the average logit person. Most students who access the internet for more than 5 hours have a perception above the average logit person. Students whose internet access duration is 3-4 hours have a perception above the average logit person. So, gender, social media ownership, and internet access duration of 3-4 hours have positive perceptions of online learning.
International Journal of Education and Learning, Volume 4, pp 58-64; https://doi.org/10.31763/ijele.v4i1.609

Abstract:
The study aimed to examine rural high schoolers’ achievement goal preferences and the potential gender variations in a neglected rural context in Iran. To this end, a sample of 252 high schoolers answered Elliott and Murayama’s (2008) Achievement Goal Questionnaire-Revised (AGQ-R). Quantitative results indicated the prevalence of mastery approach (MAp) and performance approach (PAp) goals, followed by performance avoidance (PAv) and mastery avoidance (MAv) goals. Further, an examination of gender differences indicated no significant differences between male and female high schoolers in their adoption of MAp, PAp and MAv goals. However, a significant difference was observed between male and female students in their resort to PAv goal. Results may have implications for different individuals in educational settings such as educational authorities, teachers, and counselors as well as researchers.
Muqadamkhon Zokirkhonovna Abdurahmonova
International Journal of Education and Learning, Volume 3, pp 135-144; https://doi.org/10.31763/ijele.v3i2.236

Abstract:
In this article some directions of professional development in the sphere of accounting just in the organs of social insurance are considered. Also the trends of social insurance that is social pensions are defined. In the result of research based the main skills of vocational education and directions of development accounting aspect of social insurance organs. In the result of changes in some aspects of accounting, that is in methods of accrues, percentage of deductions, recording transactions in accounts and so on, appeared necessary in development vocational skills of accounting in the aspect of insurance system. Offered formulas influence to the process of development professional achievements in the sphere of social insurance. Classified the main deductions of salary in accordance to international standards and brought sample accounting entries of usually accounting operations. In total, by our opinion high quality courses of accounting for practical accountants influence to the process of accounting development. World practice has proven that the market economic system has certain significant shortcomings, which include unemployment, inflation, population differentiation by income level, etc. Along with this, in the conditions of the dominance of market relations, the population is at a certain risk of losing their job, a permanent source of income or the ability to work. Hence, the issues of social protection of the population from negative market phenomena become one of the important tasks of a civilized state. In addition, in the harsh market conditions, social support for those who are unable to work, who are retired, receive medical treatment, below the poverty line, as well as those who have not yet reached working age, who work in low-paid, but important socially important positions, in general, in need of external assistance becomes a priority function of the state.
, Miguel Herrera,
International Journal of Robotics and Control Systems, Volume 2, pp 253-261; https://doi.org/10.31763/ijrcs.v2i2.636

Abstract:
Due to the possible shortage of oil and gas, increasing the number of cars, global warming, air pollution, and outages, there is a special need for renewable energy sources and electric vehicles (EVs). The new battery-electric vehicles BEVs can be charged by the power grid. However, the existing fossil fuel power plant cannot provide enough power for this purpose, and the only choice is renewable energy sources (RECs). Comparing RECs, solar energy is abundant and accessible in any part of the world. Needless to state that a maximum power point tracking (MPPT) system is required in order to extract maximum power from solar modules. In this paper, a charging strategy is proposed via using a solar system, a boost converter, and a fuzzy tracking algorithm. The main research contribution of the presented paper is to charge an EV without putting stress on the power grid. The effectiveness of this approach is demonstrated by the MATLAB Simulink and LTSPICE results.
International Journal of Robotics and Control Systems, Volume 2, pp 240-252; https://doi.org/10.31763/ijrcs.v2i2.574

Abstract:
This study proposes a fractional adaptive control scheme design for a longitudinal pitch angular motion control of a military F15 aircraft. The aircraft behavior will be forced to follow a chosen model reference in an MRAC (Model Reference Adaptive Control) configuration combined with dynamics inversion technique such that the transient response becomes invariant even in the presence of uncertainties or variations for a reference input by introducing a fractional-order transfer function pre-filter. Based on Lyapunov theory, the updating control law minimizes the error between the plant output and the model reference one. This controller is set in a cascade with a linear dynamic compensator. Simulation results on a military aircraft model with comparison to preceding results illustrate the effectiveness and the superiority of the proposed control strategy.
International Journal of Robotics and Control Systems, Volume 2, pp 201-229; https://doi.org/10.31763/ijrcs.v2i1.532

Abstract:
This paper presents an overview of the methodologies and applications of artificially intelligent systems (AIS) in different engineering disciplines with the objective of unifying the basic information and outlining the main features. These are knowledge-based systems (KBS), artificial neural networks (ANN), and fuzzy logic and systems (FLS). To illustrate the concepts, merits, and demerits, a typical application is given from each methodology. The relationship between ANN and FLS is emphasized. Two recent developments are finally presented: one is intelligent and autonomous systems (IAS) with particular emphasis on intelligent vehicle and highway systems, and the other is the very large scale integration (VLSI) systems design, verification, and testing.
International Journal of Robotics and Control Systems, Volume 2, pp 140-171; https://doi.org/10.31763/ijrcs.v2i1.599

Abstract:
The current study aims to present a detailed analysis of a hybrid renewable energy system used for standalone operation. The hybrid system consists of a wind-driven synchronous generator, a photovoltaic solar system, and a battery storage system. The modeling of each system component is presented and described in detail. To achieve optimal energy exploitation, the maximum power point tracking algorithm is adopted. The management of synchronous generator operation is achieved through controlling the machine-side converter using a newly formulated predictive control scheme. To visualize the advantages of the proposed control algorithm, its performance is compared with the other two traditional predictive control approaches, mainly the model predictive direct power control and model predictive direct torque control systems. An effective control scheme is also adopted to manage the power storage in the battery using a bi-directional DC/DC converter. To maintain a balanced power flow between the system units, an energy management strategy is presented. Extensive tests are carried out to evaluate the performance of the hybrid system considering variable wind speed, variable sun irradiation, and variable load profiles. The obtained results for the synchronous generator performance visualize the validity and superiority of the proposed control scheme over the other two classic controllers. The results are also validating the effectiveness of the battery storage control system and confirming the validity of the constructed energy management strategy in achieving the energy balance between the system units.
International Journal of Robotics and Control Systems, Volume 2, pp 187-200; https://doi.org/10.31763/ijrcs.v2i1.584

Abstract:
Methane reforming processes are of great importance for both the reduction of this greenhouse gas concentration in the atmosphere and for hydrogen production for energetic or chemical synthesis purposes. The use of Biogas in substitution for methane in reforming processes still provides a solution for the recovery of organic waste capable of producing Biogas. However, an in-depth analysis of the advantages of this substitution from the point of view of process yield is still lacking. Thus, the main contribution of the present research is the focus given to the comparison between methane and biogas as a reactant for the dry and steam reforming processes. In this work, a computational comparison of syngas production processes was performed, considering the system within the open-loop control. The software Aspen Hysys was used based on the minimization of Gibbs free energy in equilibrium. The parameters studied were: molar ratio of reagents (1-5), temperature (600-1000 °C), and pressure (1-5 bar). Dry methane reforming and steam methane reforming units were simulated, as well as both units using Biogas as a methane source. The plant was built in the simulator, and the results obtained indicated that high values in the molar ratio of CO2/CH4, CO2/Biogas, H2O/CH4, and H2O/Biogas, high temperatures, and low pressures favor the maximum conversion of methane. The use of Biogas in replacement of pure methane in the reform process proved to be advantageous for favoring the synthesis gas production reaction, besides adding value to a residue.
International Journal of Robotics and Control Systems, Volume 2, pp 172-186; https://doi.org/10.31763/ijrcs.v2i1.586

Abstract:
The basic idea of the developed work is to solve the problem of mobile robot navigation with obstacle avoidance and the trajectory tracking problem in simple and complex environments. The research contribution aims to develop a strategy of navigation based on the turning point and the free segments algorithms. Indeed, a turning point method is developed in order to solve the problem of navigation in a simple environment. Then, the free segments approach is applied in order to solve the problem of obstacle avoidance in a complex environment. The second part of this paper aims to solve the problem of trajectory tracking. For this reason, a sliding mode controller is proposed as a solution to control the stability of the mobile robot. Finally, some simulation results which are developed using Matlab software are given to prove the validity of the developed work.
, Radhwan A. A. Saleh,
International Journal of Robotics and Control Systems, Volume 2, pp 230-239; https://doi.org/10.31763/ijrcs.v2i2.594

Abstract:
The Inverted Pendulum is a highly nonlinear, unstable, and fast dynamic system. These characteristics make it a popular benchmark for building and testing novel controllers. Therefore, in this study, a sliding mode controller is proposed and tested on the inverted pendulum system. According to the results of the simulation experiments with a sine signal as a reference, the proposed controller can stabilize the system well and has so fast response. Moreover, we have tuned the parameters of the proposed sliding mode controller in order to eliminate the chattering effect, the overshoot, and the steadystate error.
International Journal of Robotics and Control Systems, Volume 2, pp 37-56; https://doi.org/10.31763/ijrcs.v2i1.523

Abstract:
The performance of the nonlinear control system that is subjected to uncertainty, can be enhanced by implementing an adaptive approach by using the robust output-feedback control and the artificial intelligence neural network. This paper seeks to utilize output feedback control for nonlinear system using artificial intelligence employing neural network. The Two Wheel Mobile Robot (TWMR) is treated as a multi-body dynamic system. The nonlinear swing-up problem is handled by designing an adaptive neural network, which is trained using a modified conventional controller called Linear Quadratic Optimal State Estimator with Integral Control (LQOSEIC). In this paper, the nonlinear system TWMR is stabilized utilizing a robust output feedback control called LQOSEIC. This controller allows a linearized model to emulate a model reference for the original nonlinear system. However, it works for a limited range of operations and will fail if the plant characteristics are unknown or uncertain. An adaptive neural network is used to overcome this problem. The adaptive neural controller is trained offline using LQOSEIC to obtain the initial weights of neurons for the network's hidden layers. After finishing the training, the LQOSEIC will be replaced by the adaptive neural controller. The main advantage of a neuro-controller is its ability to update the weights online depending on the error signal. If there are any disturbances or uncertainties that arises within the concerned nonlinear system, the neuro-controller will be able to handle it because of online learning that compensates for the effect of unpredictable conditions. The proposed adaptive neural network improves control performance and ensures the robust stability of the closed-loop control system. Finally, numerical simulations are used to demonstrate the efficacy of the proposed controllers.
C. Nagarajan, B. Tharani, S. Saravanan, R. Prakash
International Journal of Robotics and Control Systems, Volume 2, pp 124-139; https://doi.org/10.31763/ijrcs.v2i1.562

Abstract:
The control system will measure the renewable energy generation power, and if the generated power is equal to the grid power, the generation sources are directly connected to the load system. When the power generation is not at sustaining level, the controller will optimize the source using the DC-DC converter and Battery based Energy management system. The operation of the battery system depends upon the power generation availability of renewable energy resources. During the high power RES, the battery is charging condition. When the RES is low power means the battery is in discharged condition. Also, the fuel cell-based energy compensation will take place when the battery power is low. The Energy router will monitor all the above generation plants based on the threshold values of each power plant, substantial Transformative Energy Management (STEM) Strategy and Resilient Power Flow Control (RPFC) controller takes necessary action like which power plant is connected to the grid power system. The simulation is performed on Mat lab / Simulink simulation platforms, and the results show the effectiveness and reliability of the control strategy for micro-grid interconnection and flexible energy flow correspondence.
International Journal of Robotics and Control Systems, Volume 2, pp 67-78; https://doi.org/10.31763/ijrcs.v2i1.508

Abstract:
Saudi students in engineering courses suffer from a lack of science, technology, engineering, and mathematics (STEM) knowledge due to the teaching philosophy and programs offered in secondary and intermediate schools. This weakness naturally impacts their motivation, grades, and their relationship with teachers. In this paper, we introduce a new experimental teaching experience in the Applied Mechanical Department of the Applied Engineering College of King Saud University, based on situated learning theory, which emphasizes that knowledge must be learned in constructed situational context). This experience involved introducing Lego NXT and Arduino to enhance the enthusiasm and interest of students through designing and building robots in agreement with the “Introduction to design” course syllabus. Two experimental challenges were associated with: the line-follower problem and the maze problem. These challenges took the form of an internal completion at the end of each semester. The experience was conducted for two consecutive terms (30 students, the academic year 2019-2020), and the results were compared to those in six previous terms (100 students, academic years from 2016 to 2019). The experimental group demonstrated grades improvement (course mean grade rose from 77.1 to 85.3), the progress of academic achievement, and interest that enables them to actively explore and construct knowledge.
International Journal of Robotics and Control Systems, Volume 2, pp 115-123; https://doi.org/10.31763/ijrcs.v2i1.480

Abstract:
The usage of robots has been due to cost reduction and increasing operation accuracy. Furthermore, employing robots in farming can decrease human tasks in hard and dangerous duties such as plowing, spraying pesticides, etc. Spraying chemicals is a common operation in agriculture crop protection. This operation is essential, but it can create some problems such as human and environmental damages by overdosing using pesticides. Recently, researchers focused on precision agriculture to make this smart. Sensors are employed to detect leaves of plants on the ground and spray them as much as required. Thus, pesticide dose will be under control. The current paper aims to introduce a wheeled robot that is developed to detect plants by color sensor and spray them. This robot can move between planting rows and detect weeds based on the leave color. A microcontroller-based board was used as the main controller, which sends spray commands to the sprayer nozzle. Outdoor and indoor tests were carried out to study the accuracy of this system. Results of experiments showed that this robot could work with acceptable accuracy in identifying weeds in the field. Thus, this robot can be commercialized for applying in the field to spray pesticides.
International Journal of Robotics and Control Systems, Volume 2, pp 79-86; https://doi.org/10.31763/ijrcs.v2i1.538

Abstract:
In a variety of low-power applications, a step-down dc-dc converter is used to reduce the voltage from a higher level. The two types of dc-dc converters are a regular buck and synchronous buck. The synchronous buck utilizes two switches and one diode, whereas the regular buck uses one switch and one diode. Many converters rely on the power components' switching qualities to work. A second MOSFET is required due to the diode's higher conduction losses. Because of the diode's conduction losses, the converter's efficiency may be reduced. The use of a synchronous buck converter improves efficiency by reducing diode losses. The main goal of this study is to compare and contrast these two low-power step-down converters. The simulation in this work was performed using the LTSPICE program.
International Journal of Robotics and Control Systems, Volume 2, pp 105-114; https://doi.org/10.31763/ijrcs.v2i1.564

Abstract:
Effective mass of robot is considered of great significance in enhancing the safety of human-robot collaboration. In this paper, the effective mass of the robot is investigated using different joint configurations. This investigation is executed in two steps. In the first step, the position of each joint of the robot is changing alone, whereas the positions of the other joints of the robot are fixed and then the effective mass is determined. In the second step, the positions of all joints of the robot are changing together, and the effective mass of the robot is determined. From this process, the relation between the effective mass of the robot and the joint configurations can be presented. This analysis is implemented in MATLAB and using two collaborative robots; the first one is UR10e robot which is a 6-DOF robot and the second one is KUKA LBR iiwa 7 R800 robot which is a 7-DOF robot. The results from this simulation prove that the change in any joint position of the robot except the first and the last joint affect the effective mass of the robot. In addition, the change in all joints’ positions of the robot affect the effective mass. Effective mass can thus be considered as one of the criteria in optimizing the robot kinematics and configuration.
Albert Wen Long Yao, H. C. Chen
International Journal of Robotics and Control Systems, Volume 2, pp 97-104; https://doi.org/10.31763/ijrcs.v2i1.557

Abstract:
The aim of this study is to develop intelligent color recognition, mobile control, and monitoring system for a pick-and-place robotic arm for manufacturing systems. The demand for smart manufacturing factories with real-time control of fabricating processes and traceability of production information is increasing urgently. Generally speaking, a smart manufacturing facility is usually composed of sensing, computing, control, and communication technologies together. In this study, the three-tier architecture of the Internet of things (IoT) was adopted as a guideline to design mobile devices to control and monitor a color image recognition and alarm monitoring system by using Raspberry Pi and a web page database. The practical results and contributions of this study are as follows: With integrating the techniques of advanced BR PLC, mobile devices and APP, color image recognition, Raspberry Pi microcomputer, and MySQL database technologies together, (1) the mobile control and monitoring system is able to supervise a real-time manufacturing plant anywhere and anytime with mobile devices easily; (2) the color identification system can identify and classify different color work-piece precisely, and the identification results are recorded for remote database platform; (3) the collected data are analyzed and displayed on mobile devices through the web database for field operators and engineers promptly. It provides a very successful practical paradigm to promote conventional factories to meet industry 4.0.
International Journal of Robotics and Control Systems, Volume 2, pp 87-96; https://doi.org/10.31763/ijrcs.v2i1.566

Abstract:
Due to the lack of oil and gas, electric cars have been in high demand in recent years. There are three kinds of electric vehicles, including Hybrid Electric Vehicles (HEV), Battery Electric Vehicle (BEV), and Plug-in Hybrid Electric Vehicle (PHEV). There is no charging portion for the batteries in the HEV where the batteries are not connected to the power grid, but BEV and PHEV can be charged by a power outlet, and the number of batteries is increased. In order to charge the battery of the Electric Vehicles (EVs), there are two ways, including the power grid and renewable energies. There are already quite a few outages in many countries, and using a power grid for charging the batteries is not suitable. Therefore, the only choice is renewable energy sources such as photovoltaic (PV), fuel-cell (FC), and so on. Furthermore, to use the DC voltage of the renewable sources, two conventional DC-DC converters are required to deliver the energy of the sources to the bank of batteries. To feed the batteries, this paper proposes a two-input one output topology that contains PV, FC, and other components. Simulation results demonstrate that the presented system is improving the system because it is able to feed the batteries with low power losses and low ripples.
International Journal of Robotics and Control Systems, Volume 1, pp 523-533; https://doi.org/10.31763/ijrcs.v1i4.539

Abstract:
The losses in electrical power systems are a great problem. Multiple methods have been utilized to decrease power losses in transmission lines. The proper adjusting of reactive power resources is one way to minimize the losses in any power system. Reactive Power Optimization (RPO) problem is a nonlinear and complex optimization problem and contains equality and inequality constraints. The RPO is highly essential in the operation and control of power systems. Therefore, the study concentrates on the Optimal Load Flow calculation in solving RPO problems. The Simple Particle Swarm Optimization (PSO) often falls into the local optima solution. To prevent this limitation and speed up the convergence for the Simple PSO algorithm, this study employed an improved hybrid algorithm based on Chaotic theory with PSO, called Chaotic PSO (CPSO) algorithm. Undeniably, this merging of chaotic theory in PSO algorithm can be an efficient method to slip very easily from local optima compared to Simple PSO algorithm due to remarkable behavior and high ability of the chaos. In this study, the CPSO algorithm was utilized as an optimization tool for solving the RPO problem; the main objective in this study is to decrease the power loss and enhance the voltage profile in the power system. The presented algorithm was tested on IEEE Node-14 system. The simulation implications for this system reveal that the CPSO algorithm provides the best results. It had a high ability to minimize transmission line losses and improve the system's voltage profile compared to the Simple PSO and other approaches in the literature.
International Journal of Robotics and Control Systems, Volume 2, pp 57-66; https://doi.org/10.31763/ijrcs.v2i1.533

Abstract:
This paper presents an invariant sets approach for chaos synchronization in a class of master-slave chaotic systems affected by bounded perturbations. The method provides the optimal state-feedback gain in terms of the minimal ellipsoid that guarantees minimum synchronization error bound. The problem of finding the optimal invariant ellipsoid is formulated in terms of a semi-definite programming problem that can be easily solved using various simulation and calculus tools. The effectiveness of the proposed criterion is illustrated by numerical simulations on the synchronization of Chua's systems.
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