scholarly journals Underfrequency Load Shedding: An Innovative Algorithm Based on Fuzzy Logic

Energies ◽  
2020 ◽  
Vol 13 (6) ◽  
pp. 1456 ◽  
Author(s):  
Robert Małkowski ◽  
Janusz Nieznański
Keyword(s):  
Fuzzy Logic ◽  
Power Systems ◽  
Load Shedding ◽  
Test Results ◽  
Fixed Frequency ◽  
Time Data ◽  
The World ◽  
Adaptive Thresholds ◽  
The Subject ◽  
Technical Solutions

In contemporary power systems, the load shedding schemes are typically based on disconnecting a pre-specified amount of load after the frequency drops below a predetermined value. The actual conditions at the time of disturbance may largely differ from the assumptions, which can lead to non-optimal or ineffective operation of the load shedding scheme. For many years, increasing the effectiveness of the underfrequency load shedding (UFLS) schemes has been the subject of research around the world. Unfortunately, the proposed solutions often require costly technical resources and/or large amounts of real-time data monitoring. This paper puts forth an UFLS scheme characterized by increased effectiveness in the case of large disturbances and reduced disconnected power in the case of small and medium disturbances compared to the conventional load-shedding solutions. These advantages are achieved by replacing time-consuming consecutive load dropping with the simultaneous load dropping mechanism and by replacing ineffective fixed-frequency activation thresholds independent of the state of the system with implicit adaptive thresholds based on fuzzy logic computations. The proposed algorithm does not require complex and costly technical solutions. The performance of the proposed scheme was validated using multivariate computer simulations. Selected test results are included in this paper.

How Should Data Science Education Be?

2020 ◽  
Vol 9 (2) ◽  
pp. 25-36
Author(s):  
Necmi Gürsakal ◽  
Ecem Ozkan ◽  
Fırat Melih Yılmaz ◽  
Deniz Oktay
Keyword(s):  
Machine Learning ◽  
Big Data ◽  
Science Education ◽  
Data Science ◽  
Doctoral Programs ◽  
Time Data ◽  
High Demand ◽  
The Core ◽  
The World ◽  
The Subject

The interest in data science is increasing in recent years. Data science, including mathematics, statistics, big data, machine learning, and deep learning, can be considered as the intersection of statistics, mathematics and computer science. Although the debate continues about the core area of data science, the subject is a huge hit. Universities have a high demand for data science. They are trying to live up to this demand by opening postgraduate and doctoral programs. Since the subject is a new field, there are significant differences between the programs given by universities in data science. Besides, since the subject is close to statistics, most of the time, data science programs are opened in the statistics departments, and this also causes differences between the programs. In this article, we will summarize the data science education developments in the world and in Turkey specifically and how data science education should be at the graduate level.

Features of the next generation of proton accelerators

1964 ◽  
Vol 278 (1374) ◽  
pp. 439-451
Keyword(s):  
Next Generation ◽  
Fixed Frequency ◽  
The Road ◽  
The World ◽  
Natural Extensions ◽  
Similar Theme ◽  
New Ideas ◽  
The Subject ◽  
Accelerator Design ◽  
Different Parts

As an introduction to the subject of future accelerators, it will be useful to consider briefly the main points of discussion at the three international conferences on a similar theme held in 1956, 1959 and 1961. In 1956 there were several laboratories, in different parts of the world, engaged in building machines based on the latest important new principle in accelerator design, namely, alternating-gradient focusing. There was a feeling, however, that the end of the road had not yet been reached, and at the 1956 Conference the success of earlier innovations encouraged the accelerator physicists to present a number of new ideas. Some of them were rather natural extensions of known principles, as, for example, a machine of fixed frequency with alternating-gradient focusing (F. F. A. G. ; see Kerst et al. 1956). This was also the first conference at which there were serious suggestions for colliding-beam experiments (Kerst 1956). The ideas presented by the Russian physicists were much more spectacular; in particular the suggestion of Budker (1956) for setting up very large neutralized electron currents to provide guiding fields in the mega-gauss region.

International Mathematical Education: Some Remarks on Japanese Mathematics Education

1970 ◽  
Vol 63 (1) ◽  
pp. 73-77
Author(s):  
Howard F. Fehr
Keyword(s):  
Mathematics Education ◽  
Japanese Culture ◽  
Mathematical Education ◽  
Test Results ◽  
Japanese Education ◽  
Partial Explanation ◽  
Japanese Students ◽  
The World ◽  
The Subject ◽  
Existing Structure

Ever since the results of the International Achievement Tests in Mathematics were announced, much interest has been expressed in the outstanding performance made by the Japanese students.1 The test results displayed an accomplishment that at age thirteen, and overall, was far su perior to the other countries involved. Many analyses have been made of the subject matter involved in the questions, of the type of questions, of the teachers of the students, and of the curricula of each of the countries, to either sustain or disprove popularly expressed superiority of Japanese mathematics education. This article merely reviews the existing structure of Japanese education and points to some unique features of Japanese culture that may offer a partial explanation. It is not intended in any sense to suggest that the Japanese program or its culture— which is evidently satisfying to their own people—is one that would be satisfactory for others. It is merely one of many cultures which we should corne to under stand as the world grows closer knit in its forward progress.

scholarly journals Artificial Intelligence: A Survey on Evolution and Future Trends

2021 ◽  
Vol 9 (2) ◽  
Author(s):  
Maad M. Mijwil ◽  
Rana A. Abttan
Keyword(s):  
Artificial Intelligence ◽  
Neural Networks ◽  
Fuzzy Logic ◽  
Power Systems ◽  
Social Networking ◽  
Social Networking Sites ◽  
Future Trends ◽  
Medical Field ◽  
Adequate Knowledge ◽  
The World

Today, the world has heard a lot about artificial intelligence (AI) and its influence in accomplishing responsibilities, and it has become famous through films, series TV and social networking sites. Artificial Intelligence (AI) is a combination of algorithms and techniques developed by developers and programmers to build metal bodies that can work for centuries with individuals. Despite the interest of everyone in this topic and its spread significantly, most people do not have adequate knowledge and understanding of this science. This science is considered as one of the essential topics in computer sciences and engineering. In this article, it has been decided to write an overview on the topic of artificial intelligence and understand how its ideas started and spread universally. In addition, there is a review of Expert Systems, Artificial Neural Networks, Fuzzy Logic, and AI applications in the medical field and power systems, especially in investigating lung images of people with COVID-19. The idea presented in this article is that the future will soon come when humans and machines will merge into cyborgs or cybernetic creatures, and they will work together when completing tasks. This idea is described as transhumanism.  

scholarly journals Energy Development and Energy Policy in Developing Countries in the Context of Globalization

2020 ◽  
Vol 209 ◽  
pp. 05024
Author(s):  
O. Yu. Yatsenko ◽  
E. B. Bespyatova ◽  
V. L. Danoyan ◽  
V.V. Efremenko
Keyword(s):  
Developing Countries ◽  
Power Systems ◽  
Electric Power ◽  
Energy Policy ◽  
Electric Power Systems ◽  
World Market ◽  
Energy Development ◽  
The World ◽  
Scientific Potential ◽  
The Subject

The article is devoted to the problem of the development of independent electric power systems in elaborating countries under the conditions of growing power stuff deficit. Economic and electric-power policy that aids to active consumers’ and independent manufacturers’ formation at the world market of power manufacturing is the subject of the investigation. A separate section is devoted to the reviewing of the technologies of energy and the scientific potential of the countries, their ability to form the power agenda independently and rationally on the basis of their own stuff, technology and science resources.

Alignment

2016 ◽  
pp. 33-50
Author(s):  
Pier Giuseppe Rossi
Keyword(s):  
Teaching And Learning ◽  
Enactive Approach ◽  
The World ◽  
Strategic Role ◽  
Education Today ◽  
Current Context ◽  
The Subject

The subject of alignment is not new to the world of education. Today however, it has come to mean different things and to have a heuristic value in education according to research in different areas, not least for neuroscience, and to attention to skills and to the alternation framework.This paper, after looking at the classic references that already attributed an important role to alignment in education processes, looks at the strategic role of alignment in the current context, outlining the shared construction processes and focusing on some of the ways in which this is put into effect.Alignment is part of a participatory, enactive approach that gives a central role to the interaction between teaching and learning, avoiding the limits of behaviourism, which has a greater bias towards teaching, and cognitivism/constructivism, which focus their attention on learning and in any case, on that which separates a teacher preparing the environment and a student working in it.

IMPROVE THE INTERETATION OF STUDY SUBJECTS PANCASILA AND CITIZENSHIP EDUCATION BY APPLYING KONSTEXTUAL LEARNING MODEL BERBASIS A TASK IN CLASS INFORMATICS XI SMK BINA ECLECTUS ACADEMIC YEAR 2015/2016

EDUKASI ◽  
2016 ◽  
Vol 13 (2) ◽  
Author(s):  
Hasanudin S. Usman
Keyword(s):  
Teaching And Learning ◽  
Learning Model ◽  
Positive Influence ◽  
Motivation To Learn ◽  
Test Results ◽  
Applied Learning ◽  
Know How ◽  
Design Activities ◽  
The Subject ◽  
Academic Year

The purpose of this research is to know how to incerease the students’ learning achievement that has been applied learning contextual task-based learning model and to know the influence of contextual learning in  the task-based teaching model to improve achievemen and motivation to learn the material pe civis lesson.   This research is an action research by theree rounds. Each round consists of four phases. Design activities are observation, and revesion. The subject of the research is XI grade students of Bina Informatika Ternate accademic year 2015/2016. Data obtained in the form of a formative test results, observation sheet teaching and learning activities. The results of the research showed that students’ achivement increased from round I to III that the round 1, (70.00 % ), (92,50 %)  3 cycles, conclusions of this research is the method of cooperatif learning can be a positive influence on students motivation and achievement in material udaya politics in Indonesia. It means that this model can be used as one of the alternative learning for Pkn.            Kata  kunci: PKn, cooperative learning method

Jalan Kesempurnaan Menurut Jamaah Insan Al-Kamil di Cijati Desa Cikareo Selatan Sumedang

2020 ◽  
Vol 2 (1) ◽  
pp. 23-37
Author(s):  
Syarifudin Syarifudin
Keyword(s):  
Qualitative Method ◽  
Human Beings ◽  
The Core ◽  
The World ◽  
The Subject ◽  
Religious Sect ◽  
Descriptive Qualitative

Each religious sect has its own characteristics, whether fundamental, radical, or religious. One of them is Insan Al-Kamil Congregation, which is in Cijati, South Cikareo Village, Wado District, Sumedang Regency. This congregation is Sufism with the concept of self-purification as the subject of its teachings. So, the purpose of this study is to reveal how the origin of Insan Al-Kamil Congregation, the concept of its purification, and the procedures of achieving its purification. This research uses a descriptive qualitative method with a normative theological approach as the blade of analysis. In addition, the data generated is the result of observation, interviews, and document studies. From the collected data, Jamaah Insan Al-Kamil adheres to the core teachings of Islam and is the tenth regeneration of Islam Teachings, which refers to the Prophet Muhammad SAW. According to this congregation, self-perfection becomes an obligation that must be achieved by human beings in order to remember Allah when life is done. The process of self-purification is done when human beings still live in the world by knowing His God. Therefore, the peak of self-purification is called Insan Kamil. 

FAMILY TRADITIONS: REFLECTION OF SOME FAMILY TRADITIONS IN THE LINGUISTIC PICTURE OF THE WORLD (ON THE BASIS OF ENGLISH AND UZBEK PROVERBS AND IDIOMS)

2020 ◽  
Vol 1 (3) ◽  
pp. 49-56
Author(s):  
Feruza Mamatova ◽  
Keyword(s):  
Cross Cultural ◽  
Cultural Communication ◽  
Cross Cultural Communication ◽  
The World ◽  
Marriage Partner ◽  
The Status ◽  
The Subject

The present paper aims to compare the principles of choosing a marriage partner and analyse the status of being in the marrriage in the frame of family traditions that are totally inherent to the both of the nations: English and Uzbek. It is known that interconnection and cross-cultural communication between the countries of these two nationalities have been recently developed. The purpose to give an idea about these types of family traditions and prevent any misunderstanding that might occur in the communications makes our investigation topical one. The research used phraseological units as an object and the marriage aspects as the subject

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