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All Journal REKA KARSA JURNAL NASIONAL TEKNIK ELEKTRO International Journal of Built Environment and Scientific Research Faktor Exacta Literasi : Jurnal Bahasa dan Sastra Indonesia serta Pembelajarannya Jurnal Abdi Insani Journal of Research and Educational Research Evaluation Jurnal Penelitian dan Pengukuran Psikologi: JPPP Jurnal Teknologi dan Manajemen East Asian Journal of Multidisciplinary Research (EAJMR) Jurnal Manajemen dan Ekonomi Kreatif Triwikrama: Jurnal Ilmu Sosial Jurnal Arsitektur ARCADE Annaba: Jurnal Ilmu Jurnalistik
Dian Nugraha
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Religion Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Neuroscience Social Sciences Other

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The Efficiency of MPPT in Mitigating the Effects of Partial Shading on Power Stability through the MPNO Method Dionova, Brainvendra Widi; Devan Junesco Vresdian; Dian Nugraha; Ariep Janeul; Abir Oktaviani; M.N.Mohammed
JURNAL NASIONAL TEKNIK ELEKTRO Vol 14, No 1: March 2025
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jnte.v14n1.1249.2025

Abstract

An electric vehicle charging station (EV charging station) is an infrastructure designed to charge electricity for electric vehicles. However, most EV charging stations still rely on fossil energy sources. Innovation is needed to overcome this problem. One of them is through the use of solar panels. Using solar panels on the CBMS turns it into a clean and environmentally friendly energy source. However, environmental factors such as weather significantly affect the energy conversion produced by solar panels. Panels that are covered by trees and tall buildings cause partial shading conditions. Partial shading conditions can result in a direct decrease in PV output power. To overcome this, output power optimization using a DC-DC converter is required. The MPPT boost converter system with a modified P&O method is designed to maximize the output power of solar panels when partial shading occurs. The test results show that the developed system can maximize the output power of solar panels in partial shading conditions with an average power increase of 8.13 and an efficiency of 91%. This method can reduce the negative impact of changes in light intensity, keep the system close to the maximum power point, and improve the efficiency of charging electric vehicles at SPKL during unstable weather conditions. However, the modified P&O method is less effective in maximizing the output power in standard solar panels. This research does not address the effectiveness of solar panels concerning temperature, humidity, and dust.
Makna Religius Foto Jurnalistik Secercah Cahaya Dalam Remang Gulita Karya Hizqil Fadl Rohman Pada Suakaonline.com Nugraha, Dian; Fakhruroji, Moch; Dulwahab, Encep
Annaba: Jurnal Ilmu Jurnalistik Vol. 7 No. 1 (2022): ANNABA: Jurnal Ilmu Jurnalistik
Publisher : Jurusan Ilmu Komunikasi, Fakultas Dakwah dan Komunikasi, UIN Sunan Gunung Djati Bandung

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Abstract

Penelitian ini bertujuan untuk menganalisis makna religius dalam foto cerita “Secercah Cahaya Dalam Remang Gulita” oleh Hizqil Fadl Rohman di lensa.suakaonline.com. Penelitian menggunakan pendekatan kualitatif dengan metode analisis semiotika Roland Barthes melalui tiga tahapan pemaknaan seperti denotasi, konotasi, dan mitos. Hasil dari penelitian ini menunjukan bahwa foto cerita berjudul “Secercah Cahaya Dalam Remang Gulita” karya Hizqil Fadl Rohman memiliki makna denotasi, konotasi, dan mitos. Secara denotasi, foto menggambarkan kisah para penyandang tunanetra yang berada di sebuah pondok guna untuk menghafal Al-Qur’an. Secara konotasi, foto menceritakan keadaan para penyandang tunanetra dengan keterbatasan fisik berupa penglihatan yang mereka miliki, untuk menghafal dan membaca Al-Qur’an dibantu alat berupa mushaf Braille dan mp3. Makna mitos yang ditemukan adalah para penyandang tunanetra merasakan hambatan membaca, sehingga kesulitan untuk menghafal. Namun adanya alat bantu mushaf Braille dan Mp3 mereka terbantu dengan adanya rasa percaya diri, keyakinan, kesungguhan yang mereka miliki.
KAJIAN MATERIAL REFLEKSI DALAM PADA DINDING TERHADAP INTENSITAS PENCAHAYAAN ALAMI Purnama, Muhammad Sega Sufia; Pratama, Mukhamad Risa Diki; Nugraha, Dian; Lutvaidah, Ukti
Jurnal Arsitektur ARCADE Vol 7 No 2 (2023): Jurnal Arsitektur ARCADE Juni 2023
Publisher : Prodi Arsitektur UNIVERSITAS KEBANGSAAN

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Abstract

Abstract: Natural lighting has been widely studied by measurement and simulation methods. Aperture is the factor under study associated with the intensity of light in the room. Reflective materials in their kind are walls and furniture. It also plays a role in determining the intensity of light in a room. This study aims to examine the various materials commonly used for walls and their effect on the intensity of light in a room. The research method used in this study is a quantitative method with a simulation using dialux Evo 8.6 software. Research begins by creating a model. The room model is made of 7 pieces in a row. After the model is finished, a window with a size of 1 x 1.3 m is created. Each room will be given a different wall material. The result is a room with wooden walls has the highest light intensity. The lowest intensity is in a room with walls of glass block material. The order from lowest to highest after red brick is rough plaster, followed by concrete, vinyl and then ceramic. This has to do with the condition of the surface of the material. The conclusion is that a room that has walls with a rough surface will experience a decrease in light intensity due to light diffraction. Color plays a role as an absorber of light. Even though the surface is smooth, if the color of the field is dark, the room will have low light intensity.Keyword: natural lighting, walls, inner reflection, light intensityAbstrak: Pencahayaan alami sudah banyak diteliti dengan metode pengukuran dan simulasi. Bukaan menjadi faktor yang diteliti dikaitkan dengan intesitas cahaya dalam ruangan. Material refleksi dalam jenisnya adalah dinding dan furnitur. Hal ini juga memainkan peran dalam menentukan intensitas cahaya dalam sebuah ruangan. Penelitian ini bertujuan mengkaji beragam material yang biasa digunakan untuk  dinding dan pengaruhnya terhadap intensitas cahaya dalam sebuah ruang. Metode penelitian yang digunakan dalam penelitian ini adalah metode kuantitatif dengan simulasi menggunakan software dialux Evo 8.6. Penelitian dimulai dengan membuat sebuah model. Model ruang dibuat sebanyak 7 buah berjejer. Setelah model selesai maka dibuat jendela dengan ukuran 1 x 1.3 m. Setiap ruang akan diberikan material dinding yang berbeda. Hasilnya adalah ruang dengan dinding kayu mempunyai intesitas cahaya yang paling tinggi. Intensitas paling rendah ada pada ruangan dengan dinding material blok kaca. Urutan dari paling rendah ke lebih tinggi setelah bata merah ada pelster kasar disusul beton, vinyl lalu keramik. Hal ini ada hubungannya dengan kondisi permukaan material tersebut. Kesimpulanya adalah ruang yang memiliki dinding dengan permukaan yang kasar akan mengalami penurunan intensitas cahaya disebabkan terjadinya difraksi cahaya.Warna memainkan peran sebagai penyerap cahaya. Walau permukaannya halus bila warna bidang gelap maka ruang akan punya intensitas cahaya rendah. Kata Kunci: pencahayan alami, dinding, refleksi dalam, intensitas cahaya
EKOSISTEM PEMBELAJARAN INKLUSIF: MENGINTEGRASIKAN MODEL KATROL, MATERI VIDEO SIBI, DAN MANAJEMEN LMS DI SLB BINA INSANI DEPOK Nugraha, Dian; Faizah, Safira; Zaenudin, M
Jurnal Abdi Insani Vol 12 No 2 (2025): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v12i2.2369

Abstract

Pendidikan inklusif di Indonesia bertujuan memberikan kesempatan yang setara bagi semua siswa, termasuk anak dengan kebutuhan khusus (ABK), untuk belajar bersama di sekolah umum. Namun, pelaksanaan pendidikan inklusif masih menghadapi berbagai tantangan, seperti kekurangan fasilitas dan tenaga pendidik yang terlatih. Siswa dengan gangguan pendengaran khususnya, menghadapi kesulitan dalam memahami materi pembelajaran yang berbasis verbal. Oleh karena itu, peningkatan infrastruktur pendidikan dan penggunaan teknologi sangat diperlukan untuk mendukung keberhasilan pendidikan inklusif. Meningkatkan kualitas pembelajaran inklusif bagi siswa tuna rungu di SLB Bina Insani Depok melalui IPTEKS dalam proses belajar mengajar. Kegiatan ini melibatkan pengembangan alat peraga fisika dasar, pelatihan penggunaan alat tersebut, serta pemberian pelatihan manajemen perangkat pendidikan melalui Sistem Manajemen Pembelajaran (LMS). Selain itu, guru yang terampil dalam Bahasa Isyarat Indonesia (SIBI) akan mendukung penggunaan perangkat perekam video. Pengembangan alat peraga sistem katrol dengan teknologi force gauge, memungkinkan guru untuk mengajarkan konsep fisika secara lebih praktis dan visual untuk memperkuat pemahaman konsep fisika dasar. Selain itu, pengembangan materi dengan menggunakan video pembelajaran berbahasa isyarat juga berhasil meningkatkan ketertarikan dan pemahaman siswa tunarungu untuk belajar fisika. Penggunaan Learning Management System (LMS) memfasilitasi manajemen materi pembelajaran dan evaluasi yang lebih efektif. Hasil evaluasi menunjukkan peningkatan signifikan dalam keterampilan guru dalam menggunakan alat bantu fisika, mengoperasikan LMS, serta merekam video pembelajaran. Secara keseluruhan, program ini memberikan dampak positif pada kualitas pembelajaran dan produktivitas guru.
Evaluation of Psychometric Characteristics of A Logical Reasoning Tool With The Classic Test Theory Approach Nugraha, Dwi Yan; Nugraha, Dian; Widyastuti, Widyastuti; Ridfah, Ahmad
Journal of Research and Measurement in Psychology: JPPP Vol 12 No 2 (2023): Jurnal Penelitian dan Pengukuran Psikologi Vol 12 No 2 Oktober 2023
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat UNJ dan Program Studi Psikologi Fakultas Pendidikan Psikologi Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JPPP.122.02

Abstract

Research on logical reasoning began to be carried out in Indonesia, it is necessary to conduct an evaluation of the psychometric characteristics possessed by logical reasoning measurement tools made by researchers. Logical reasoning measurement tools made by researchers need to be re-evaluated considering there are weaknesses in terms of using a relatively small number of subjects, so that it can affect the standardization of logical reasoning measuring devices. This study aims to obtain an overview of item difficulty index, item discrimination index, effectiveness of the distractors, validity, reliability, and error measurement from the logical reasoning measurement tool. Respondents in this study amounted to 7.730 students, consisting of 3.897 men and 3.833 women with an age range of 15-19 years. The research data were analyzed with the help of Microsoft Excel 2007, SPSS version 22.00, and ITEMAN version 3.6. The results of this study indicate that the item difficulty index moves from 0.35 to 0.80 which belongs to the easy and medium category. This study also shows that the item discrimination index moves from 0.10 to 0.71 with four items rejected and need to be aborted. This study also shows that the effectiveness of the distractors contained in each item in the logical reasoning measure is in the effective category. This study also shows that each item in the logical reasoning measure is considered valid in terms of factorial validity through exploratory factor analysis (EFA) procedures. This study also shows that the measurement of logical reasoning is relatively reliable with a Cronbach Alpha coefficient of 0.906. This study also shows that the measurement error obtained in this study is ± 3.92 of the total score obtained using a logical reasoning measure with a confidence level of 95%, with the actual score estimate obtained by respondents moving from 12.08 to 19.92, if the scores obtained by respondents sixteen.
Implementation of a Fuzzy Logic Controlled Full Bridge SPWM Inverter for Lighting and Charging Applications Dionova, Brainvendra; Permana, Muhammad Zidan Regi; Vresdian, Devan Junesco; Pratama, Legenda Prameswono; Jaenul, Ariep; Nugraha, Dian; Mohammed, M. N.
Jurnal Teknologi dan Manajemen Vol. 23 No. 2 (2025): Jurnal Teknologi dan Manajemen (August)
Publisher : Politeknik STMI Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52330/jtm.v23i2.428

Abstract

As energy sources continue to dwindle, they have garnered significant attention, prompting the government to set a target of at least 31% of Indonesia's total energy consumption coming from renewable sources. This study focuses on developing an inverter, a device that converts direct current (DC) into alternating current (AC), utilizing a 12V/100Ah battery to support a 150-watt AC load. The proposed inverter adopts a full-bridge configuration with single-phase sinusoidal pulse width modulation (SPWM) and incorporates a fuzzy logic controller to ensure stable output voltage. The implementation results indicate that the designed full-bridge inverter produces a steady output aligned with the input from a 12V LiFePO4 battery, as confirmed by data collection which compared the output with and without control, showing that the controlled system yields a more stable output. The testing results of the full-bridge inverter using the SPWM method indicate that the system can produce an AC output voltage of 221–224 V with a frequency of 50 Hz, in accordance with the established standards. In contrast, during testing without control, the output voltage ranged only between 145–147 V with a frequency of 99.18 Hz, which does not meet operational standards. These results clearly demonstrate the effectiveness of the fuzzy controller in maintaining both voltage and frequency stability under varying operating conditions. By accurately adjusting the system response, the fuzzy controller ensures that the inverter consistently delivers output within the desired standard range, thereby enhancing the overall performance and reliability of the system.
Co-Authors AA Sudharmawan, AA Abir Oktaviani Ading Rahman Sukmara Amalia Mardia Ariep Jaenul Ariep Janeul Brainvendra Widi Dionova Devan Junesco Vresdian Dionova, Brainvendra Eddy Supriatna Eka Nugraha Encep Dulwahab, Encep Ernawati Ernawati Ferey Herman Harahap, Baran Enda Hendra Cipta Irma Andriani Irnawati Legenda Prameswono Pratama M, Daud M.N.Mohammed Mirna Rahmah Lubis Moch. Fakhruroji Mohammed, M. N. Muhammad Naufal Hakim Nugraha, Dwi Yan Paramita, Esti Permana, Muhammad Zidan Regi Pratama, Mukhamad Risa Diki Purnama, Muhammad Sega Sufia Ridfah, Ahmad Safira Faizah Sisca Naftali Sitti Alfiyana Bahar SRI RAHAYU Suryani Musi Ukti Lutvaidah Utami Utami Utami Utami Verawati Verawati Vresdian, Devan Junesco Widyastuti Widyastuti Zaenudin, M