scholarly journals Operation of the Egyptian Power Grid with Maximum Penetration Level of Renewable Energies Using Corona Virus Optimization Algorithm

Smart Cities ◽  
2022 ◽  
Vol 5 (1) ◽  
pp. 34-53
Author(s):  
Hady H. Fayek ◽  
Omar H. Abdalla
Keyword(s):  
Teaching And Learning ◽  
Optimal Operation ◽  
Renewable Energies ◽  
Power Losses ◽  
Software Application ◽  
Renewable Power ◽  
Corona Virus ◽  
Voltage Deviation ◽  
Paris Climate Agreement ◽  
Egyptian Government

Countries around the world are looking forward to fully sustainable energy by the middle of the century to meet Paris climate agreement goals. This paper presents a novel algorithm to optimally operate the Egyptian grid with maximum renewable power generation, minimum voltage deviation and minimum power losses. The optimal operation is performed using Corona Virus Algorithm (CVO). The proposed CVO is compared to the Teaching and Learning-Based Optimization (TLBO) algorithm in terms of voltage deviation, power losses and share of renewable energies. The real demand, solar irradiance and wind speed in typical winter and summer days are considered. The 2020 Egyptian grid model is developed, simulated, and optimized using DIgSILENT software application. The results have proved the effectiveness of the proposed CVO, compared to the TLBO, to operate the grid with the highest share possible of renewables. The paper is a step forward to achieve Egyptian government targets to reach 20% and 42% penetration level of renewable energies by 2022 and 2035, respectively.

scholarly journals The Effectiveness of Using Blended Learning with Google Classroom and Zoom Media on Students' Understanding

2021 ◽  
Vol 2 (2) ◽  
pp. 99
Author(s):  
Wasti Reviandani
Keyword(s):  
Blended Learning ◽  
Learning Process ◽  
Quantitative Research ◽  
Teaching And Learning ◽  
Virus Disease ◽  
Direct Interaction ◽  
Analysis Tool ◽  
Teaching Activities ◽  
Corona Virus ◽  
The Impact

The teaching and learning process is the core of education. Everything that has been programmed will be carried out in the teaching and learning process where interaction and involvement is needed between educators and students with materials as the medium. Teaching activities at the strata 1 level involve educators called lecturers and students called students. In general, teaching activities are carried out offline, which involves direct interaction between lecturers and students. At the beginning of 2021, rumors began to appear that there was a global disaster of the Corona Virus Disease (COVID-19) pandemic, which initially Indonesia considered that the Corona virus was impossible to enter Indonesia. However, the development of the virus is so fast. Indonesia finally announced in early March 2021 as a country experiencing the impact of the global disaster due to the COVID -19 pandemic. This study wants to find out how effective it is to use blended learning by using google classroom and zoom to improve the understanding of FEB students at Muhammadiyah University of Gresik. This research is a quantitative research using causal clause relationship, using SPSS version 23.0 analysis tool. The results obtained from this study are that the Google Classroom and Zoom applications partially and simultaneously have a significant positive effect on student understanding.

scholarly journals Studi Dampak Covid-19 Terhadap Hasil Belajar Geografi di SMA Negeri 1 Sikur

2020 ◽  
Vol 4 (2) ◽  
pp. 231-239
Author(s):  
Animar Animar ◽  
Keyword(s):  
Student Learning ◽  
Learning Outcomes ◽  
Learning Process ◽  
Teaching And Learning ◽  
Quantitative Methods ◽  
Student Learning Outcomes ◽  
Average Value ◽  
Corona Virus ◽  
Before And After ◽  
The Government

The spread of the Corona virus has had a significant impact on the world of education. The policy taken by many countries, including Indonesia, is to close all educational activities. This makes the government and related institutions have to present an alternative learning process. Many factors affect student learning outcomes coupled with changes in learning conditions due to the Corona virus (Covid-19) outbreak. The purpose of this study was to obtain information about the impacts and constraints of the Covid-19 outbreak on teaching and learning activities, especially in Geography subjects at SMA Negeri 1 Sikur. Data collection was carried out using the pretest - posttest method of students' abilities before and after the Covid-19 pandemic. Furthermore, data analysis was carried out by quantitative methods using paired sample t-test to test the difference in the effect of the two treatments on the interrelated sample groups. The results of the analysis indicate that there is a difference in the average Geography learning outcomes of 11th grade of social science students before and after the outbreak of the corona virus. Information was obtained that the average value of student learning outcomes during the face-to-face learning process was 86.27, better than the average value when the learning process was carried out online which was 75.73. Keywords: covid-19 impact, learning outcomes, geography

An advanced control system for the optimal operation and management of medium size power systems with a large penetration from renewable power sources

1997 ◽  
Vol 12 (2) ◽  
pp. 137-149 ◽  
Author(s):  
E. Nogaret ◽  
G. Stavrakakis ◽  
G. Kariniotakis ◽  
M. Papadopoulos ◽  
N. Hatziargyriou ◽  
...  
Keyword(s):  
Control System ◽  
Power Systems ◽  
Optimal Operation ◽  
Medium Size ◽  
Power Sources ◽  
Renewable Power ◽  
Advanced Control ◽  
Operation And Management

scholarly journals Analyzing Effectiveness Of Learning Management System In Present Scenario: Conceptual Background And Practical Implementation

2021 ◽  
Author(s):  
Subhajit Panda
Keyword(s):  
Management System ◽  
Teaching And Learning ◽  
Learning Management System ◽  
Practical Implementation ◽  
Educational Training ◽  
Conceptual Approach ◽  
Software Application ◽  
Conceptual Background ◽  
E Learning ◽  
Learning Management

Coronavirus is a widespread dangerous disease in recent months, originated in China but with a great impact at the global level. As a result, the education process is choked by shut down of college & universities and maintaining social distancing for reducing the outbreak from community transmission. The purpose of this study is to explore the effectiveness of Learning Management System (LMS) in higher education to support teaching and learning in this ‘new normal’ by providing a stand-alone platform for online & distance learning. LMS is a software application for administering, documenting, tracking, reporting, automating, and delivering educational, training, or learning and development programmes; which originated directly from the concept of e-learning. With the detailed conceptual approach of LMS, the study also associates with the practical implementation of Blackboard LMS in Chandigarh University. Additionally, the study also tastes a comparative analysis between Blackboard, Canvas & Moodle LMS.

scholarly journals The New Era of Education amidst COVID-19 Lockdown

2021 ◽  
Vol 8 (7) ◽  
pp. 185-191
Author(s):  
Suprava Sahu ◽  
Binita Nanda
Keyword(s):  
Online Education ◽  
Education System ◽  
Teaching And Learning ◽  
Virus Disease ◽  
Human Life ◽  
Primary Data ◽  
Higher Education System ◽  
Online Mode ◽  
Corona Virus ◽  
Virus World

Novel Corona Virus Disease (COVID-19) pandemic has immensely affected each and every aspect of human life. Due to spreading of the virus world-wide and that too at an alarming rate, education system has been badly hit since the arrival of Corona virus. It has made the schools and colleges to shut down and has compelled them to adopt the online mode of education. According to a UNESCO report, more than 157 crore students across 191 countries had been severely affected by the closure of educational institutions throughout the globe due to COVID-19. Efforts are being taken to identify and investigate the challenges that presently our higher education system is facing due to COVID-19 disruption. There are opportunities that need to be explored for the upcoming global teaching and learning after COVID-19. There had been a lot of anxiety and uncertainty regarding opening of schools and colleges as previously there was no vaccine for the corona virus. This paper attempts to study how different categories viz. Administration, Students and Teachers in the educational sector have been affected by the lockdown keeping in view the cancellation of exams, study plan, examination, career and classes. For the analysis, primary data has been collected through a questionnaire in which a total of 116 number of responses have been recorded. Keywords: Schools, Colleges, Institutions, Universities, Online education, Education, COVID-19, Lockdown.

scholarly journals Optimal sizing and location of multiple distributed generation for power loss minimization using genetic algorithm

2019 ◽  
Vol 16 (2) ◽  
pp. 956
Author(s):  
Abdulhamid Musa ◽  
Tengku Juhana Tengku Hashim
Keyword(s):  
Genetic Algorithm ◽  
Distributed Generation ◽  
Distribution System ◽  
Power Loss ◽  
Total Power ◽  
Power Losses ◽  
Loss Minimization ◽  
Power Constraints ◽  
Voltage Deviation ◽  
Power Limits

This paper presents a Genetic Algorithm (GA) for optimal location and sizing of multiple distributed generation (DG) for loss minimization. The study is implemented on a 33-bus radial distribution system to optimally allocate different numbers of DGs through the minimization of total active power losses and voltage deviation at power constraints of 0 – 2 MW and 0 – 3 MW respectively. The study proposed a PQ model of DG and Direct Load Flow (DLF) technique that uses Bus Incidence to Branch current (BIBC) and Branch Current to Bus Voltage (BCBV) matrices. The result obtained a minimum base case voltage level of 0.9898 p.u at bus 18 with variations of voltage improvements at other buses after single and multiple DG allocations in the system. Besides, the total power loss before DG allocation is observed as 0.2243 MW, and total power loss after DG allocation was determined based on the power constraints. Various optimal locations were seen depending on the power limits of different DG sizes. The results have shown that the impact of optimal allocation and sizing of three DG is more advantageous concerning voltage improvement, reduction of the voltage deviation and also total power loss in the distribution system. The results obtained in the 0 – 2 MW power limit is consistent to the 0 – 3 MW power limits regarding the influence of allocating DG to the network and minimization of total power losses.

scholarly journals Efficiency of Learning Software ‘Sinding Pimato’ Towards Reading Achievement of Kadazandusun Language for Year One Pupils

2019 ◽  
Vol 6 (3) ◽  
pp. 5365-5369
Author(s):  
Marbella Binti Justine ◽  
Rosliah Kiting ◽  
Julita@Norjietta Binti Taisin
Keyword(s):  
Reading Achievement ◽  
Primary Schools ◽  
Teaching And Learning ◽  
Control Group ◽  
Language Curriculum ◽  
Software Application ◽  
Significant Difference ◽  
Quasi Experimental ◽  
Learning Software ◽  
Experimental Group

Reading skill is an important skill in Kadazandusun language to enable pupils to follow and master the teaching and learning in the classroom. However, the findings from previous studies show that most pupils in primary schools have yet to master the basic skills of reading in the pronunciation aspect. Therefore, this study has to be carried out to study the effectiveness of ‘Sinding Pimato’ software application on the reading achievement of the Year One pupils. This study is a quasi-experimental study. The quantitative approach is used together with pre and post-test instruments. A total of 30 Year One pupils in a school at Tambunan District have become the sample for this study. The sample of the study was divided into two groups, namely the experimental group taught using ‘Sinding Pimato’ software and the control group taught by Chalk and Talk method. The findings show that there is a significant difference in the achievement of reading between the experimental group and the control group. The findings of this study show that the application of ‘Sinding Pimato’ learning software is effective in helping to improve the achievement of reading for the Year One pupils. In conclusion, the ‘Sinding Pimato’ software has an effective effect as a learning tool for Kadazandusun Language. The implication of the study shows that the ‘Sinding Pimato’ software is useful to improve the quality of teaching and learning Kadazandusun language curriculum.

scholarly journals PEMBELAJARAN MATEMATIKA BERBASIS INFORMATIKA

Eksponen ◽  
2017 ◽  
Vol 7 (2) ◽  
pp. 87-95
Author(s):  
Khusnul Khotimah
Keyword(s):  
Problem Solving ◽  
Conventional Method ◽  
Learning Process ◽  
Teaching And Learning ◽  
Learning System ◽  
Learning Tool ◽  
Software Application ◽  
Mathematic Teaching ◽  
Informatic System

The Mathematic Teaching and learning based informatic system is learning system implementing computerization technology as a learning tool in theteaching and learning process. This teaching and learning process in which it combines conventional method with the application practice has been constructed on the basis of the implemented curriculum in a college. The use of media in a teaching and learning process like computer as a learning tool will make the teaching and learning process more effective because it will create an interesting teching and learning process as well as stimulate the students’ creativity. In addition, the teaching and learning process not only as a tutorial qctivity but also it provides the implentation of the theories given. The Mathematic teaching and learning based informatic is done to know the comparison of problem solving in mathematic using Mathematic software application. The standardized process and the use of informatic are constructed based on the exsisting curriculum in order to control the quality of the learning proses and result.

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