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Testing and Analysis of Energy-Efficient Solar Lamp Performance on Sulawesi Island Hulukati , Stephan Adriansyah; Sholihah, Qomariyatus; Harahab, Nuddin; Marjono, Marjono
Indonesian Green Technology Journal Vol. 13 No. 1 (2024): Indonesian Green Technology Journal
Publisher : Graduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.igtj.2024.013.01.05

Abstract

The Energy-Efficient Solar Lamp (LTSHE) initiative is a strategic electrification program implemented by the Indonesian government to deliver sustainable lighting solutions to rural communities in Sulawesi that remain beyond the reach of the national electricity grid. The program primarily targets residents in remote, underdeveloped, and isolated areas, including border regions and small frontier islands. The LTSHE system utilizes photovoltaic panels to capture solar energy, which is converted into electrical energy and stored in lead-acid batteries through a capacitor hub, subsequently supplying power to LED lamps for household illumination. To assess system performance, a photometric evaluation was conducted on a sample representing 6,018 installed systems (24,072 lamp units). As of July 31, 2018, nine units (0.037%) were randomly selected for laboratory testing. Illumination intensity was measured at three dimming levels (100%, 50%, and 10%), producing average illumination values of 31.6 lux, 15.4 lux, and 3.2 lux, respectively. Measurements at reduced dimming levels demonstrated consistent light output across samples, with values ranging from 14.4 to 14.8 lux at 50% and approximately 2.8 lux at 10%. Laboratory verification also indicated that the measured direct current injection voltage (8.10 V) exceeded the manufacturer’s specified minimum of 7.40 V, confirming the accuracy and reliability of the testing instruments. Overall, the findings demonstrate that LTSHE units provide adequate and consistent illumination, particularly at lower dimming settings, supporting their suitability for off-grid rural applications in Sulawesi. Future evaluations are recommended to standardize testing across all dimming levels to ensure comprehensive performance validation.
Penguatan Kapasitas SDM Masyarakat Desa dalam Pengelolaan Sampah Melalui Inovasi Teknologi Konversi Sampah Plastik Menjadi Bahan Bakar untuk Mendukung Ekonomi Sirkular di Kabupaten Grobogan Arif Surono; Joko Mulyono; Wahyu Wijaya Widiyanto; Marjono, Marjono
Journal of Community Service and Engagement Vol 1 No 2 (2026): February: Servitia: Journal of Community Service and Engagement
Publisher : CV SCRIPTA INTELEKTUAL MANDIRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65310/et1nsw90

Abstract

This study analyzes the strengthening of community human resource capacity in rural waste management through the application of plastic waste conversion technology to support the transition toward a circular economy in Grobogan Regency. The program integrated educational interventions, technical demonstrations of pyrolysis-based systems, and institutional facilitation to enhance sustainable waste governance at the village level. Empirical findings indicate increased community understanding of circular economy principles, improved technical knowledge of plastic-to-fuel conversion processes, and greater willingness to participate in technology-based waste management practices. The intervention also encouraged the formation of community waste management groups and strengthened local government support for program sustainability. Behavioral shifts were reflected in the changing perception of plastic waste from environmental burden to economically valuable resource. These outcomes demonstrate that participatory technology adoption can enhance institutional readiness and support decentralized waste-to-energy implementation in rural communities.
Interpreting the Dynamics of Trust and Control in Management Accounting within Collaborative Work Settings Rely, Gilbert; Marjono, Marjono; Sudana , I Made; Harahap , Subur
Dinasti International Journal of Economics, Finance & Accounting Vol. 7 No. 1 (2026): Dinasti International Journal of Economics, Finance & Accounting (March-April 2
Publisher : Dinasti Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/dijefa.v7i1.6191

Abstract

The dynamics between trust and control mechanisms in management accounting are becoming a strategic issue in modern organizations that rely on cross-functional collaboration, especially in the manufacturing sector that demands intensive coordination and accuracy of information between units. Tension and alignment between trust and control have the potential to determine the effectiveness of collaboration, but empirical evidence in the Indonesian context is still limited. This study aims to analyze the influence of trust and management control systems on collaborative performance in a collaborative work environment, as well as examine the role of the interaction between the two in strengthening or weakening the effectiveness of cooperation. As a complement to the quantitative approach, this study applies a comparative case study to several manufacturing companies in West Java to capture the variation in trust and control practices in the dynamics of collaboration between divisions. Using a survey of 150 employees from various departments and companies, data was collected through a structured questionnaire and analyzed using multiple linear regression and interaction tests to identify direct relationships and moderation effects between variables. The results showed that trust had a strong positive influence on collaborative performance, while formal control mechanisms provided a more moderate but still significant positive influence. In addition, participatory designed controls have been shown to strengthen the relationship between trust and collaborative performance, confirming that the two mechanisms can function complementarily. These findings conclude that the integration of trust and control based on management accounting is an important prerequisite for the effectiveness of collaboration in the modern organizational environment, as well as making a theoretical contribution to the management accounting literature and practical implications for the design of control systems that support interdivisional coordination.
Jokowi Leadership Model as Mayor of Solo 2005-2010 Quraisyi, Quraisyi; Marjono, Marjono; Soepeno, Bambang
JURNAL HISTORICA Vol. 1 No. 2 (2017): Desember 2017
Publisher : History Education, University of Jember

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Abstract

Jokowi applied transformational leadership during his position as the mayor of Solo in 2005-2010 through revitalation in Solo both the governmental change and the society. The questions towards the problems of this research are: How is the leadership model of Jokowi as the mayor of Solo in 2005-2010?; and what factors which affect the leadership Jokowi’s model as the mayor of solo in 2005-2010?; than what moral values of the Jokowi’s leadership model as the mayor of Solo in 2005-2010?. Hence, the objectives of this research are; To analyze the Jokowi’s leadership model as the mayor of Solo in 2005-2010, in which this reseearch can be regarded as guidance or reference or directing to a new view of the ideal leadership for Indonesia. The methodology of this research is Historical Research Methodology. The time scope of this research is form 2005-2010 and the palace of this research is in Solo. The conclusion of this research are the character of transformational leadership, internal and external factor, and also as the values humanity aspect, democracy and nationalism Keywords: Jokowi, Transformational Leadership, Solo
“National Festival Reyog Ponorogo” As an Effort to Preserve Reyog Arts in Ponorogo Regency 1995-2016 Rismayanti, Fransisca Ayu; Marjono, Marjono; Umamah, Nurul
JURNAL HISTORICA Vol. 1 No. 2 (2017): Desember 2017
Publisher : History Education, University of Jember

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Abstract

National Festival Reyog Ponorogo is a staging of Reyog Arts with the format of the race held at the Main Stage of Ponorogo central park as one of the efforts made by the Government to preserve the Arts of Reyog Ponorogo. The art of Reyog, which was initially forgotten by many people ranging from young to old, increasingly decreasing demand by the current globalization. Reyog art cannot be used properly and experienced a shift. The younger generation is increasingly reluctant to preserve their ancestral cultures because they have thought that following the traditional arts it will be termed as non-modern young men. The purpose of this study is as one way to invite young people to participate preserve Reyog Arts to be known in various regions of the archipelago. This research is a historical research that has steps include: heuristics, criticism, interpretation and historiography. Data collection was done by observation, interview and documentation. The results of this research showed that the implementation of Reyog Ponorogo National Festival can preserve the Arts Reyog Ponorogo and promote the Ponorogo Regency as a tourist destination for local and foreign tourists. It is proven by the participation of festival participants from Sumatra, Kalimantan, DKI Jakarta, Yogyakarta, Universitas Brawijaya, Jember University, SMKN 2 Wonogiri etc. National Festival Reyog Ponorogo can increase the income of the people and the local government of Ponorogo through the trade, transportation and services sector as well as the hospitality sector. In addition, the festival can also be a medium for the planting of characters for the younger generation of the values pertained in the arts of Reyog Ponorogo. This research is expected to be a means to cultivate the interest of the young generation to preserve the arts of Reyog and can instil the values contained in Reyog Art so that the younger generation and society know that Reyog Art not only serves as a spectacle of neglect as well as life guidance. Keywords: National Festival Reyog Ponorogo, Conservation Efforts, Reog Arts Keywords: Reyog Ponorogo National Festival, Conservation Efforts, Reog Arts
Megawati Soekarno Putri Government Policy In Dealing With The Effects Of The Bali Bombings I In 2002 Hidayah, David; Marjono, Marjono; Sumardi, Sumardi; Umamah, Nurul; Surya, Riza Afita
JURNAL HISTORICA Vol. 6 No. 2 (2022): December 2022
Publisher : History Education, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jh.v6i2.27525

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The Bali Bombing I in 2002 was one of the events caused by terrorists in Indonesia. Terror acts carried out in the Bali region with bombings killed 202 people. The incident occurred when the Indonesian government did not yet have laws and regulations governing the handling of explosions. The Bali Bombing I had a wide impact on the world of Bali tourism. The explosion destroyed the Paddy's Pub cafe, Sari Club and the United States Consulate. More than 519people were recorded, consisting of 202 people died and 317 people were outpatient. The Bali Bombing I caused many problems that had to be handled by the Megawati Soekarnoputri Government, among others, the obstacles to assistance from the central government to the Bali local government, the handling of legislation did not yet exist, limited hospital installations, reconstruction and normalization in the tourism sector had not yet been implemented. recovered for tourism promotion. Keywords: Government, Handling, Bali bomb I.
The Struggle Of Achyat Chalimy Through Laskar Hizbullah In The Independence Revolution 1945-1950 Winarno, Novyantika Eka Putri; Marjono, Marjono; Sumardi, Sumardi; Umamah, Nurul; Surya, Riza Afita
JURNAL HISTORICA Vol. 6 No. 2 (2022): December 2022
Publisher : History Education, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jh.v6i2.28934

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Achyat Chalimy is a student of KH. Hasyim Asy'ari who founded Laskar Hizbullah Mojokerto in 1945 to defend Indonesia's independence. The formation of Laskar Hizbullah was recognized by Japan on December 15, 1944. Laskar Heizbullah was a semi-military force consisting of Muslim youths and students who fought to defend Indonesia's independence against allied forces. The purpose of this study was to analyze the role of Achyat Chalimy and Laskar Hizbullah in the Revolution of Independence in 1945-1950. This research uses historical research methods and social psychology approaches. The results of this study indicate that Achyat Chalimy and Laskar Hezbollah during the Independence Revolution played a role in the battle in Surabaya in 1945, the guerrilla battle in Mojokerto in 1945-1947, and the battle in Kutorejo in 1948-1949. The end of Achyat Chalimy's role with Laskar Hizbullah in 1950 was marked by the transfer of sovereignty from the Netherlands to Indonesia. Keywords: Achyat Chalimy, Laskar Hizbullah, Independence Revolution
Improving Students’ Science Process Skills on Biology Using Bounded Inquiry Lab Model HANDAYANI, SIN SYIN LU’LU’; SUCIATI, SUCIATI; MARJONO, MARJONO
Bioedukasi: Jurnal Pendidikan Biologi Vol 9, No 2 (2016): Bioedukasi: Jurnal Pendidikan Biologi
Publisher : Department of Biology Education Faculty of Teacher Training and Education Sebelas Maret Un

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/bioedukasi-uns.v9i2.4218

Abstract

This research is to improve the students’ science process skills include four aspects: 1) formulating problem; 2)formulating hypotheses; 3) constructing experimental design; 4) apply concept in Senses System,by applying boundedinquiry lab model for second grade students at SMA Al Islam 1 Surakarta. This research is a classroom action research(CAR), conducted in two cycles. Each cycle consists of planning, action, observation, and reflection. The research subjectwas 35 students of science 3 at SMA Al Islam 1 Surakarta.Data collection techniques used: 1) non-test technique(observation, interviews, and documentations); 2) test for science process skills. Data was analysed using descriptivequalitative. The results show that there is an improvement of each aspect of science process skillsfrom Pre-Cycle to Cycle2, i.e. formulating problem (39,46%; 50%;82,35%); formulating hypotheses (34,05%; 49,12%; 81,48%); experimentaldesign 34,05%; 49,12%; 81,48%); application concept (36,76%; 38%; 64,75%).Itcanbe concluded that the application ofbounded inquiry lab model can improve students’ science process skills.
Pengaruh Model Pembelajaran Inkuiri Terbimbing Terhadap Kemampuan Berpikir Kritis Siswa Kelas X MIA Pada Materi Pencemaran Lingkungan di Surakarta Masitoh, Ikhlasun Dwi; Marjono, Marjono; Ariyanto, Joko
Bioedukasi: Jurnal Pendidikan Biologi Vol 10, No 1 (2017): Bioedukasi: Jurnal Pendidikan Biologi
Publisher : Department of Biology Education Faculty of Teacher Training and Education Sebelas Maret Un

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/bioedukasi-uns.v10i1.11276

Abstract

ABSTRAK-Penelitian bertujuan untuk mengetahui pengaruh model pembelajaran inkuiri terbimbing terhadap kemampuan berpikir kritis siswa kelas X MIA pada materi pencemaran lingkungan di SMA A Surakarta.Penelitian ini merupakan penelitian eksperimen semu (quasi experimental research) dengan desain penelitian posttest only nonequivalent control group design. Populasi dalam penelitian ini adalah seluruh siswa kelas X MIA SMA A Surakarta Tahun Pelajaran 2013/2014. Teknik pengambilan sampel yang digunakan dalam penelitian adalah cluster sampling. Teknik pengumpulan data menggunakan metode tes dan non tes. Metode tes meliputi soal uraian kemampuan berpikir kritis sedangkan metode non tes meliputi observasi dan dokumentasi. Uji hipotesis dengan menggunakan uji-t (t-test) dibantu SPSS versi 16.Hasil uji hipotesis pengaruh model pembelajaran inkuiri terbimbing terhadap kemampuan berpikir kritis diperoleh nilai sig.<a yaitu 0,013 < 0,05 dan nilai thitung>ttabel(a,df) yaitu 2,563 > 1,670 sehingga H0 ditolak. Hal ini berarti perolehan rata-rata kemampuan berpikir kritis antara eksperimen kelas dan kelas kontrol berbeda nyata. Perbedaan tersebut juga didukung secara deskriptif yaitu dari nilai rata-rata kemampuan berpikir kritis kelas eksperimen (81,44) lebih tinggi dari kelas kontrol (75,97). Hasil capaian aspek berpikir kritis pada kelas eksperimen yaitu interpretation 90 %, analysis 53 %, inference 76 %, explanation 95 %, evaluation 82% dan self-regulation 93 %, sedangkan pada kelas kontrol yaitu interpretation 84 %, analysis 45 %, inference 84 %, explanation 91 %, evaluation 61 % dan self-regulation 91 %. Capaian tiap aspek berpikir kritis pada kelas ekperimen lebih tinggi dari kelas kontrol pada semua aspek kemampuan berpikir kritis kecuali aspek inference.Berdasarkan hasil uji hipotesis dan analisis data dapat disimpulkan bahwa ada pengaruh signifikan model pembelajaran inkuiri terbimbing terhadap kemampuan berpikir kritis dalam pembelajaran biologi pada aspek interpretation, analysis, explanation, evaluation, dan self-regulation namun tidak signifikan pada aspek inference. Kata kunci: Model Pembelajaran Inkuiri Terbimbing, Kemampuan Berpikir KritisABSTRACT- The objective of this research was to find out the influence of guided inquiry learning toward the critical thinking skills of X MIA students on environmental pollution material in SMA A Surakarta. This research was a quasi experimental research with posttest only nonequivalent control group design. The population of the research is all of the X MIA students of SMA A Surakarta in the academic year of 2013/2014. The sample was selected through cluster sampling. The data were collected using test and non-test method. The test applied test method is critical thinking essay, while the applied non-test method is observation and documentation. The hypothesis testing is done by applying t-test with SPSS version 16. From the hypothesis result of the influence of guided inquiry learning toward critical thinking skill, the obtained result of the significance value is 0.013 (a< 0.05) and t = 2.563 > ttable(a,df) = 1.670. There is a significant difference in the mean score of critical thinking skill between experimental group and control group. The mean score of experimental group (81.44) is higher than control group (75.97). The achievement of each critical thinking skills aspects of experimental group on interpretation is 90 %, analysis is 53 %, inference is 76 %, explanation is 95 %, evaluation is 82% dan self-regulation is 93 %, while the achievement of each critical thinking skills aspects of control group on interpretation is 84 %, analysis is 45 %, inference is 84 %, explanation is 91 %, evaluation is 61 % dan self-regulation is 91 %. The achievement of each critical thinking skills aspects of experimental group is higher than control group in all of critical thinking skills aspects except inference. Based on hypothesis testing and data analysis it can be concluded that guided inquiry learning gives significant effect toward the critical thinking skill in biology learning on interpretation, analysis, explanation, evaluation, and self-regulation aspect but not significant on inference aspect.
Penggunaan Problem Based Learning untuk Meningkatkan Kemampuan Berpikir Kreatif dalam Pembelajaran Biologi Siswa Kelas VII di Salah Satu SMP Negeri di Surakarta Sutanto, Wiji; Marjono, Marjono; Ramli, Murni
Bioedukasi: Jurnal Pendidikan Biologi Vol 11, No 1 (2018): Bioedukasi: Jurnal Pendidikan Biologi
Publisher : Department of Biology Education Faculty of Teacher Training and Education Sebelas Maret Un

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (268.649 KB) | DOI: 10.20961/bioedukasi-uns.v11i1.12388

Abstract

This research was aimed to improve the student’s creative thinking skill in VII F of SMP Negeri 8 Surakarta academic years 2014/2015 about biology lesson through problem based learning application.This research was a class action research which consisted of three cycles. Each cycle contains planning, implementing, observing and reflecting. The research subject was the 30 students of VII F of SMP N 8 Surakarta Academic Year 2014/2015. Data collecting techniques of this research used testing, observation, and interview then data validation was using triangulation method. Data analyzing technique of this research was descriptive qualitative analysis which was done in three components, they are: data reduction, data presentation and drawing the conclusion or verification. The research’ procedure used spiral mode which is interdependent.The research’s result showed that the implementation of problem based learning improves the student’s creative thinking skill that covers aspects of fluency, flexibility, originality,danelaboration. The percentages of fluency aspect was 45,00% in pre cycle, 51,79% in first cycle, 59,17% in second cycle, and 73,33% in third cycle. The percentages of flexibility was 31,67% in pre cycle, 33,93% in first cycle, 44,17% in second cycle, and 56,67% in third cycle. The percentages of originality aspect was 18,33% in pre cycle, 24,11% in first cycle, 30,00% in second cycle, and 39,17% in third cycle. The percentages of elaboration aspect was 35,00% in pre cycle, 41,96% in first cycle, 50,00% in second cycle, and 55,83% in third cycle.This research’s conclusion was the implementation of problem based learning can improve the student’s creative thinking skill in VII F of SMP N 8  Surakarta academic year 2014/2015 about biology lesson. 
Co-Authors Achendri M. Kurniawan Agung Riyantomo Aiham Giovani Akhmad Suryadi Alamsyah, Adi Wildan Alanindra Saputra Alvi Rosyidi Aminudin Afandhi Amru Sukmajati, Amru Andi Hidayatul Fadlilah Andi Kurniawan Anggara S, Clip Anggara S, Clip Anisa Zahra Hermayani, Anisa Zahra ANISAK KURNIASIH Antariksa Sudikno Arief Rachmansyah Arif Surono Ayu Octavia, Diah Baehaki, Imam Bagyo Yanuwiadi Bambang Semedi Bambang Soepeno Baskoro Adi Prayitno Bayuaji, Gerardus David Ady Purnama Bukhori, Hilmi Aziz Burhamtoro Burhamtoro, Burhamtoro Cahyo, Dimas Surya Dwi Christine Riani Elisabeth Dandung Novianto Dewi Puspita Diani, Khonita Rahma Dibyo Waskito Guntoro Dinda Awalia Ramadhani Diza, Novia Fara Djumala Machmud, Djumala Dwi Herlindawati Dwi Pertiwi Hapsari Dwi Ratnaningsih, Dwi Dwi Suheryanto Dyah Ayu Rahmawati Cupasindi Ekobelawati, Fransiska Fadillah Putra Fatimah, Imas Fernanda Prasky Hartono Firdaus, RB. Moh. Muslim Gatot Ciptadi Hairur Rahman HANDAYANI, SIN SYIN LU’LU’ Harahap , Subur Harsuko Riniwati Helik Susilo Hidayah, David Hidayahningrum, Syafitri Hikmawati, Viona Faiqoh Hilmiah, Anis Syatul Hulukati , Stephan Adriansyah Ikha Primarinda ikrar hanggara Ina, Ina Indah Dwi Qurbani Indah Yanti Ishak Ishak Iswanto Iswanto Joko Ariyanto Joko Mulyono Karim, Corina Kayan Swastika Khoiro, Nazidatul Koeswardilla, Della Destalia Kurniawan Sekar Angkoso Kusuma, Vista Anindya Laila Sari Laila, Ratu Anna Nazla Latiifani, Choirunnisa Lestari, Cyntia Ayu LITHON SUNYOTO Loso Judijanto M. Ruslin Anwar M.Pd S.T. S.Pd. I Gde Wawan Sudatha . Maridi Maridi Masitoh, Ikhlasun Dwi Meidiana, Rebeka METTI SETYOWATI Milda Istiqomah Moch. Khamim Moch. Sholeh, Moch. Muhammad Tri Aditya Mujianti, Yunita Ika Murni Ramli Mustagfirin Mustagfirin Napiajo Napiajo Noor Hidayat, Noor Novita Anggraini Novita Anggraini Novita Sari Nuddin Harahab Nuhfil Hanani Nurhabib, Asro Nurina, Lia Nurul Umamah Oktaviani, Anik Paparang, Stenly Reinal Prasetyo, Guruh pratama, ahmad ryan Pratiwi, Feby Dewi Pratiwi, Sabtiya Purwati, Magdalena Yuli Purwati, Magdalena Yuli Qomariah Qomariah Qomariyatus Sholihah Quraisyi, Quraisyi Quraisyi, Quraisyi Rahayu, Sindi Mei Rahmawati, Vini Rarasanti, Pramodia Dyah Rely, Gilbert Rismayanti, Fransisca Ayu Rismayanti, Fransisca Ayu Rizki Aruma Nurjannah, Indah Rulianto, Umar Farouk Rully Putri Nirmala Puji S Siswanto Sa'diyah, Ilmatus Safitri, Ni Luh Eka Sahrul, Adi Sambou, Omar Sari, Yeni Novita Setyawati, Laily Sholekhah, Irmadatus SITI MAHMUDAH Siti Rahayu Sony Susanto Sri Dwiastuti Sri Handayani Suciati Suciati Suciati Sudarisman Sudana , I Made Sudarsini, Sudarsini Sugiyanto - Sulthoni, Luqman Jauhar Sumardi . Sumarjono Sumarjono Supardi Supardi Supiyono, Supiyono surya, riza afita Sutanto, Wiji Suwarno Suwarno Syaifudin, Rizky Aziz Syaiful Anam Syam's, Nova Dewi Safitri Tampubolon, Amy Septrina Tutik Fitri Wijayanti Udan Kusmawan Usuluddin, Fachruddin Wanto, Alfi Haris Widiarto, Ony Widiyanto, Wahyu Wijaya Wijaya, Agung Mike Willa Nurhaidar Lestiana Winarno, Novyantika Eka Putri Yudi Rinanto Yulia Agustin Zahro, Mustika Zahro, Mustika Zulfikar, Fahcri