scholarly journals Computational Programming as a Tool in the Teaching of Electromagnetism in Engineering Courses: Improving the Notion of Field

2019 ◽  
Vol 9 (1) ◽  
pp. 64 ◽  
Author(s):  
J. Nogueira ◽  
Ricardo Alves ◽  
P. Marques

In this study we have attempted, firstly, to describe programming protocols developed for the teaching of an Electromagnetism course in the university degrees of Electrical Engineering and Energy Engineering, and secondly, to evaluate students’ satisfaction with the simulation practices through MATLAB® programming. The main objective of the protocols is to allow students to model and visualize the electric field and magnetic field (both static) and understand the approximation that is made when considering certain distributions of electric charges and electric currents. To evaluate the usefulness of this computational methodology, eighteen students from the two engineering degrees answered a questionnaire with seven questions related to the Electromagnetism course and to the benefits of using computer programming. Their answers are measured by a Likert scale. From the analysis of the results, we can conclude, in a general way, that the use of this methodology has positive effects in the learning of Electromagnetism in these two degrees.

2016 ◽  
Vol 54 (1) ◽  
pp. 57-81 ◽  
Author(s):  
Ayman Faza ◽  
Majd Batarseh ◽  
Wejdan Abu-Elhaija

The field of power and energy engineering in Jordan went through a period of decline during the period between 1990 and 2000, which resulted in students of electrical engineering pursuing other fields such as communications and computing, as the advances in the technologies of cellular communications and computer networking created more opportunities for recent graduates, and provided an attractive field of study for the students at that time. However, the recent increase in the prices of oil, and the advances in the technology of renewable energy sources such as solar and wind energy, resulted in a sudden revival in the field of power and energy engineering. In addition, due to the recent advances in the technologies of communication and computing, the notion of a “smart grid” emerged as the future of power and energy, which promised more career opportunities in this field. This decline in the number of skilled professionals in the field of power and energy, combined with the sudden increase in the available opportunities in the field created a gap in the Jordanian market requirements, which necessitated remedial actions to fix this phenomenon. That gap was noticeably felt in Amman, the capital of Jordan, which is also the center for the largest number of businesses in the country. Therefore, it became essential for the universities in Jordan to address this issue by offering degrees specializing in power and energy engineering. With its central location in the heart of Amman, and given its role as a leading technological university in the country and the region, Princess Sumaya University for Technology (PSUT) established a new “power and energy engineering” program, in which a number of specialized courses were developed, and a number of state-of-the-art laboratories were established to create a competitive degree program that produces high-quality graduates, capable of tackling the challenges presented in the field of power and energy. This paper presents the most recent upgrade that was made in the power and energy laboratories in the department of electrical engineering at the university, and evaluates their overall effect on the newly established degree program, and on the quality of education and research in the university.


An earlier suggestion by Martyn that the effective conductivity of the ionosphere in the dynamo theory is enhanced by polarization of the Hall current is examined in quantitative detail. General expressions are given for the conductivities of a thin ionized sheet oriented at an angle to a uniform magnetic field. The effective conductivity of such a (spherical) sheet surrounding the earth is shown to be greater than either the Pedersen or the Hall conductivities. The variation of conductivity with latitude is calculated for the ionospheric level of maximum effective conductivity. Consideration is given to the height-integrated conductivity of the actual ionosphere, and effective values deduced. It is shown that the F 2 region will move bodily under the influence of the electric field from lower regions, thereby reducing its ability to shunt the Hall polarization field. The effective conductivity over most of the earth is found to be sufficient to satisfy Stewart’s dynamo theory. In a narrow strip at the equator the conductivity is enhanced, thereby accounting for the anomalously large magnetic variations found to occur in these regions.


1972 ◽  
Vol 9 (7) ◽  
pp. 921-924 ◽  
Author(s):  
S. P. Srivastava

A self-contained recording system to measure the electric currents at the bottom of the ocean is described. The system was used to measure these currents on the Scotian Shelf south of Halifax, Canada. Comparison of the electric field recorded on the shelf with the magnetic field recorded at a shore based station show good correlation.


Author(s):  
Veta Mukaeva ◽  
E. Parfenov ◽  
R. Mukaev ◽  
M. Gorbatkov

The issue of modeling the distribution of the electric field in the electrolyzer during the plasma-electrolytic oxidation of a magnesium alloy for the motivation and formation of professional competencies for students in the study of electrical engineering disciplines is considered.


Jurnal Teknik ◽  
2018 ◽  
Vol 7 (1) ◽  
Author(s):  
Mauludi Manfaluthy

WHO (World Health Organization) concludes that not much effect is caused by electric field up to 20 kV / m in humans. WHO standard also mentions that humans will not be affected by the magnetic field under  100 micro tesla and that the electric field will affect the human body with a maximum standard of 5,000 volts per meter. In this study did not discuss about the effect of high voltage radiation SUTT (High Voltage Air Channel) with human health. The research will focus on energy utilization of SUTT radiation. The combination of electric field and magnetic field on SUTT (70-150KV) can generate electromagnetic (EM) and radiation waves, which are expected to be converted to turn on street lights around the location of high voltage areas or into other forms. The design of this prototype works like an antenna in general that captures electromagnetic signals and converts them into AC waves. With a capacitor that can store the potential energy of AC and Schottky diode waves created specifically for low frequency waves, make the current into one direction (DC). From the research results obtained the current generated from the radiation is very small even though the voltage is big enough.Keywords : Radiance Energy, Joule Thief, and  LED Module.


Author(s):  
علاء حسنى المزين (Alaa Hosni)

كان من أهم الآثار الإيجابية للصحوة الإسلامية التى عمت العالم الإسلامى بشكل ملحوظ منذ أوائل السبعينيات فى القرن العشرين زيادة إقبال الشعوب الإسلامية على تعلم اللغة العربية، وبدأ الاهتمام الحقيقى لجامعات العالم الإسلامى بتوفير مساقات متخصصة لهذا الغرض منذ أوائل الثمانينات، وكانت الجامعة الإسلامية العالمية بماليزيا التى أسست سنة 1983 من أنشط الجامعات فى هذا الصدد، وهو نشاط استلفت نظر الباحث إذ وجده يستحق الرصد والتوثيق العلمى، والمراجعة إذا اقتضت الضرورة لا بهدف الإشادة بالتجربة بل رغبة فى الإفادة والاستفادة من قبل المختصين من المهتمين بهذا الميدان الحيوى من ميادين خدمة اللغة العربية بل خدمة الإسلام، وحضارته نظرا للارتباط الوثيق بين اللغة العربية وهذا الدين الحنيف باعتبارها لغة كتابه الخالد، والمعلم الرئيس من معالم الهوية الإسلامية المميزة والصمود الحضارى.*****************************************************One of the most positive effects of the Islamic awakening since the early seventies, in the twentieth century, which spread across the Islamic world in a significant manner, has been the increased Muslims’ interest in learning the Arabic language all over the world. There began a real interest in the universities of the Muslim world for the Arabic language by providing specialized courses for this purpose since the early eighties and  the International Islamic University Malaysia established in 1983 has been the most active university in this regard. And this activity of the university drew the interest of the researcher who found it worthy of investigation and scientific documentation as well as of revision, if necessary, not in order to pay tribute to the experience, but for taking advantage and learning from specialists interested in this vital field of the fields of Arabic language service which is actually service of Islam and its civilization considering the strong connection between Islam and the Arabic language, the language of the Qur’Én , the most distinctive feature of Islamic identity and resilience of Islamic civilization.


2021 ◽  
Vol 87 (2) ◽  
Author(s):  
Swati Baruah ◽  
U. Sarma ◽  
R. Ganesh

Lane formation dynamics in externally driven pair-ion plasma (PIP) particles is studied in the presence of external magnetic field using Langevin dynamics (LD) simulation. The phase diagram obtained distinguishing the no-lane and lane states is systematically determined from a study of various Coulomb coupling parameter values. A peculiar lane formation-disintegration parameter space is identified; lane formation area extended to a wide range of Coulomb coupling parameter values is observed before disappearing to a mixed phase. The different phases are identified by calculating the order parameter. This and the critical parameters are calculated directly from LD simulation. The critical electric field strength value above which the lanes are formed distinctly is obtained, and it is observed that in the presence of the external magnetic field, the PIP system requires a higher value of the electric field strength to enter into the lane formation state than that in the absence of the magnetic field. We further find out the critical value of electric field frequency beyond which the system exhibits a transition back to the disordered state and this critical frequency is found as an increasing function of the electric field strength in the presence of an external magnetic field. The movement of the lanes is also observed in a direction perpendicular to that of the applied electric and magnetic field directions, which reveals the existence of the electric field drift in the system under study. We also use an oblique force field as the external driving force, both in the presence and absence of the external magnetic field. The application of this oblique force changes the orientation of the lane structures for different applied oblique angle values.


2021 ◽  
Vol 13 (2) ◽  
pp. 712
Author(s):  
Andrea Okanović ◽  
Jelena Ješić ◽  
Vladimir Đaković ◽  
Simonida Vukadinović ◽  
Andrea Andrejević Panić

Growing environmental problems and increasing requirements of green jobs force universities around the world not only to transform their curricula but also to enrich existing ones with contents related to the promotion of sustainable development. This paper aims to show the importance of measuring and monitoring the share of green contents in all university activities, as only in that way it is possible to monitor trends and give realistic assessments of their effect and importance. The paper presents a comparative analysis of different types of methodologies for assessing sustainable activities at universities as well as research conducted at the University of Novi Sad in Serbia and its comparison with the University of Gothenburg (Sweden). This research aims to point out the importance of increasing competitiveness in higher education through assessment of green content in a curriculum and its promotion. In this way, through eco-labeling methodology, it would be easier to identify those contents that, in a certain share, contribute to the promotion of sustainable development. Furthermore, this methodology can easily be extended across the country and the region, which would bring positive effects to all stakeholders in higher education.


Author(s):  
Can Cui ◽  
Yifan Wang ◽  
Qiang Wang

AbstractHuman capital has been acknowledged as a key driver for innovation, thereby promoting regional economic development in the knowledge era. University graduates from China’s “first-class” universities—the top 42 universities, included in the “double first-class” initiative, are considered highly educated human capital. Their migration patterns will exert profound impacts on regional development in China, however, little is known about the migration of these elite university graduates and its underlying driving forces. Using data from the 2018 Graduate Employment Reports, this study reveals that the uneven distribution of “first-class” universities and regional differentials largely shaped the migration of graduates from the university to work. Graduates were found aggregating in eastern first-tier cities, even though appealing talent-orientated policies aimed at attracting human capital had been launched in recent years by second-tier cities. Employing negative binomial models, this study investigates how the characteristics of the city of university and destinations affect the intensity of flows of graduates between them. The results showed that both jobs and urban amenities in the university city and destination city exert impacts on the inflow volume of graduates; whereas talent attraction policies introduced by many second-tier cities are found not to exert positive effects on attracting “first-class” university graduates presently. The trend of human capital migration worth a follow-up investigation, particularly given ongoing policy dynamics, and would shed light on the regional development disparities in China.


Sign in / Sign up

Export Citation Format

Share Document