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All Journal REiD (Research and Evaluation in Education) Makara Journal of Technology
Junus Simangunsong, Junus
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Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Education Electrical & Electronics Engineering Engineering Materials Science & Nanotechnology Mechanical Engineering

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Study on Electrochromic Effect of Polyaniline Film Handojo, Lienda; Simangunsong, Junus
Makara Journal of Technology Vol. 7, No. 3
Publisher : UI Scholars Hub

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Abstract

Study on Electrochromic Effect of Polyaniline Film. The light transmission factor of an electrochromic film changes reversibly with the application of an electrical voltage. Thereby the transparent film becomes reversibly opaque so that it may be used to control light transmission. In this paper the results of a study on polyaniline film as an electrochromic active material is reported. Polyaniline looks yellow transparent in the reduced state and turns to green-blue at its oxidized state. The electrochromic device considered in this paper was fabricated in planar configuration of ITO glass − polyaniline film − electrolyte − ITO glass which involved 1.0M H2SO4 solution. The measurement of the current density yields voltamograms for several values of the rate of voltage change, while the optical characteristics were measured with ultraviolet-visible spectroscopy. To inspect the light control properties, the intensity of solar radiation propagating through the device was derived. It is found that in its reduced state, the device transmits 70% of the incoming radiation, while in the oxidized state only 11% of the radiation is left. The result of recycling test indicated that film is stable over 5,000 cycles.
An evaluation of the implementation of study-from-home policy in senior high school during Covid-19 pandemic Simangunsong, Junus; Mustikaningsih, Hastuti
REID (Research and Evaluation in Education) Vol. 8 No. 1 (2022)
Publisher : Graduate School of Universitas Negeri Yogyakarta & Himpunan Evaluasi Pendidikan Indonesia (HEPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/reid.v8i1.36734

Abstract

The increase in Coronavirus Disease-19 in Indonesia has prompted the central and regional governments to issue a study-from-home (SFH) policy through the Minister of Education and Culture Circular Letter Number 4 of 2020. The policy aims to reduce activities in schools but uses a meaningful curriculum. The purpose of the evaluation is to see the SFH policy implementation related to teaching and learning activities. The collection of information and data, interviews, and group discussion forums were conducted through online meetings, including video conferencing and other social media. This policy implementation was analyzed in the aspects of context, input, process, and product. The study involved 2,862 respondents, consisting of 60 people from the Education Office, 284 school principals, 861 teachers, 677 students' parents, and 980 students. Evaluation results for each aspect show that: (1) in terms of context, policymakers in the regions have followed up Governor's decrees and the SFH program (78.33%); (2) in terms of input, schools have prepared 17% of infrastructure and the level of teacher ability is 41.64%; (3) in terms of process, 49.56% of learning is carried out online; and (4) in terms of product, 88% teachers have assessed learning outcomes. Thus, the SFH policy has been carried out optimally, but some learning factors are not going well due to limited cell phones, low teacher competence in using applications, and unavailability of the Internet network in some schools. The SFH implementation at the provincial government level has been carried out effectively and efficiently, but in schools, online learning is still found to be uneven.
An evaluation of the strengthening of national behavior through developing and training of national non-commissioned officers of West Papua regional police Simangunsong, Junus; Purnomo, Langgeng
REID (Research and Evaluation in Education) Vol. 8 No. 2 (2022)
Publisher : Graduate School of Universitas Negeri Yogyakarta & Himpunan Evaluasi Pendidikan Indonesia (HEPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/reid.v8i2.49293

Abstract

The development of "Superior Human Resources, Advanced Indonesia" in the police institution through the transformation to the Republic of Indonesia Police (Polri) which is precise includes making superior police officers who have national behavior by strengthening the eleven values of national identity. To strengthen this national attitude, the West Papuan Regional Police Office conducted the development and training program for young non-commissioned officers (NCOs) from West Papua using the Experiential Learning (EL) approach for one month. From this activity, it is expected the participating NCOs will not only have a strong sense of national identity but also become police officers who have sociocultural competence as a state apparatus. This study aims to reveal the achievement of national behavior on the values of national identity according to the curriculum used by analyzing the correlation and factors that form national behavior. The data were collected using a questionnaire and through observation, interviews, and documentation, and were analyzed using quantitative and qualitative descriptive techniques. Before being used, the questionnaire and observation sheet readability was validated by officers and staff of the Indonesian National Police Headquarters, psychologists, and educational evaluation experts, resulting in a Cronbach Alpha value of 0.899. The research sample was 165 people, established using the simple random sampling technique, while for the acquisition of qualitative data, interviews were conducted with the Head of the National Police School, one observer, and one instructor. The results showed that the achievement of national behavior with the EL method approach had a Spearman Rank correlation of the eleven factors formed was >0.5 (0.853 and 0.853), and the factor analysis was able to summarize 62.10% of the eleven variables. This evaluation shows that the significant nature of the faith and mutual cooperation of the participants and the benefits have succeeded in increasing the behavior of the character of nationality in the category of inviting others.
Co-Authors Langgeng Purnomo, Langgeng Lienda Handojo, Lienda Mustikaningsih, Hastuti