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PID Controller for DC-DC Converter under Dynamic Load Change in Photovoltaics based Low-Voltage DC Microgrid Setiawan, Made Andik; Hidayat, Fahmi; Sari, Ela
Kinetik: Game Technology, Information System, Computer Network, Computing, Electronics, and Control Vol. 8, No. 1, February 2023
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/kinetik.v8i1.1582

Abstract

Today, DC Microgrid gain more attraction due to increasing electronic digital devices application such smart-phones, smart-tvs, and other digital apparatus which are operated in DC form. In the common grid, the electric power from AC source is converted to DC voltage for powering the digital devices as load. Hence, there are power conversions from AC-DC and potentially loss energy during conversions. DC Microgrid consisted of sources, loads, distribution lines and energy storages. In small capacity DC Microgrid, the stability of the system is vulnerable by dynamic load change. During load demands fluctuations, the DC Microgrid voltage is also dynamically fluctuated and can reach over the designated rate. To solve this problem, the PID controller is introduced in the DC-DC converter for maintaining the voltage rate at designated value regardless the load demands. In this paper, the DC Microgrid is consisted of photovoltaics as DC sources, XL-6019 as DC-DC converter, Arduino as controller, voltage and current sensors, distribution lines and loads. The proposed method is evaluated via experimental results. The responses of the proposed method in the DC Microgrid system are presented, evaluated, discussed, and compared between with and without applied method. The experimental results indicate that the proposed method has ability to reduce the voltage profile fluctuations during load demands changes and in short time.
Digital Storytelling Research Trends in Indonesia: A Systematic Literature Review Hidayat, Fahmi; Febriyanti, Emma Rosana
Acitya: Journal of Teaching and Education Vol. 6 No. 2 (2024): ACITYA Journal of Teaching and Education
Publisher : Universitas Muhammadiyah Kalimantan Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30650/ajte.v6i2.3848

Abstract

New technologies have largely brought about positive changes in educational settings, enabling educators to improve their expertise and, consequently, elevate the quality of education. Studies reveal that incorporating these technologies leads to increased student engagement, higher levels of achievement, and greater motivation. Digital storytelling is perceived as an ideal method to meet the learning needs of digital native students while also improving their skills for the 21st century as it can be used as a medium for literacy and creativity. This research was conducted through a library approach, analyzing numerous articles focused on digital storytelling. This systematic literature review aims to provide a comprehensive overview of digital storytelling research in Indonesia, shedding light on emerging trends, challenges, and opportunities in this field. The findings highlight key responsibilities for teachers using digital storytelling, emphasizing the importance of developing technology skills, as well as, it uncovers any shifts in focus over time and highpoints gaps in the existing literature, providing valuable insights for future research directions.
PENENTUAN JENIS DRAFT TUBE BERDASARKAN NILAI HEAD RECOVERY DAN KINERJA TURBIN HYDROCOIL MENGGUNAKAN METODE COMPUTATIONAL FLUID DYNAMICS Hidayat, Fahmi; Luthfie, Alief Avicenna; Biantoro, Agung Wahyudi
Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 12, No 1 (2023)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/jtm.v12i1.18270

Abstract

A Microhydro Power Plant (MHP) with hydrocoil turbine in Sukajaya Lembang Village, Bandung, West Java, has been successfully designed. However, the velocity of the water flow after exiting the hydrocoil turbine is still relatively high, so there is still a lot of wasted flow energy before it can be converted. Like other reaction turbines, the hydrocoil turbine requires a draft tube in order to maximize its energy conversion process. Thus, the purpose of this research is to determine the type of draft tube based on the head recovery value and performance of the hydrocoil turbine for the MHP system. This determination process involves 3 stages: 1) evaluation of the performance of the hydrocoil turbine that has been installed with three types of draft tubes, namely conical straight, curved elbow, and simple elbow, by Computational Fluid Dynamics (CFD), 2) calculation of the head recovery of the three types of draft tubes, and 3) determination of the best draft tube based on the head recovery value and performance of the hydrocoil turbine. In stage one, the type of analysis used is steady state with the SST k-ω turbulence model, to capture turbulence in the penstock pipe and near the turbine blades. As the results, the highest hydrocoil turbine efficiency with all three types of draft tubes installed, is at a rotational speed of N=1100 rpm. The highest efficiency for the hydrocoil turbine with conical straight, curved elbow, and simple elbow draft tubes are 90.48%, 90.18%, and 91.26%, respectively. Meanwhile, the head recovery at rotational speed N=1100 rpm for conical straight, curved elbow, and simple elbow draft tubes are 1.627 m, 1.866 m, and 4.097 m, respectively. Thus, the simple elbow draft tube is the best to use in this MHP system because it has the highest head recovery and efficiency values.
AN INTERACTIVE BOOK TO PROMOTE EMPATHY IN EARLY CHILDHOOD TOWARD SOUTH KALIMANTAN'S ENDEMIC WILDLIFE Fadilla, Raisa; Chandra, Noor Eka; Listia, Rina; Febriyanti, Emma Rosana; Hidayat, Fahmi; Reyhan, Muhammad; Aditya, Muhammad Rifki
Journal of English Teaching, Applied Linguistics and Literatures (JETALL) Vol 7, No 2 (2024): JETALL VOLUME 7 NUMBER 2 2024
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jetall.v7i2.21175

Abstract

This research aims to develop an interactive book as a medium to foster empathy in early childhood towards endemic animals in South Kalimantan, particularly the proboscis monkey (Bekantan) and mudskipper fish (Timpakul). The research follows a research and development (R&D) methodology, encompassing need analysis, product design, development, and evaluation stages. The interactive book, titled Antan & Kepi: The Friendship that Grew by the River, tells the story of a friendship between Antan, the proboscis monkey, and Kepi, the mudskipper, which forms when Antan shows empathy by rescuing Kepi from being trapped in rocks. The book aims to address the identified lack of local wisdom-based reading materials, particularly those featuring endemic animals, available to young learners in South Kalimantan. The product was validated by two experts: a media expert and an early childhood English expert. The validation process assessed content feasibility, alignment with psychological and linguistic development, and technical aspects of media presentation. The final product received an overall validation score of 86.08%, indicating high feasibility for use. Despite this, experts suggested improvements in font size and image clarity to enhance readability and visual appeal. The findings highlight the potential of interactive media to contextualize learning and support language acquisition while instilling empathy and environmental awareness in young children. The interactive book provides an engaging, culturally relevant resource for early childhood education, offering a meaningful, localized learning experience that connects children with their environment.
Interferensi Semantis pada Film Si Doel The Movie Prameswari, Jatut Yoga; Rahmawati, Rahmawati; Hidayat, Fahmi
Nitisara: Jurnal Ilmu Bahasa Vol 2, No 2 (2024): Nitisara: Jurnal Ilmu Bahasa
Publisher : Universitas Indraprasta PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30998/ntsr.v2i2.3758

Abstract

Penelitian ini bertujuan mengkaji fenomena interferensi semantis dalam dialog film Si Doel The Movie, adaptasi dari sinetron populer era 1990-an, Si Doel Anak Sekolahan. Sinetron ini dikenal karena alur cerita sederhana yang mencerminkan kehidupan nyata, menjadikannya tontonan favorit masyarakat lintas generasi. Film adaptasi yang dirilis pada 2 Agustus 2018 ini diproduksi oleh Falcon Pictures dan Karnos Film, disutradarai oleh Rano Karno, serta dibintangi oleh Rano Karno, Maudy Koesnaedi, Cornelia Agatha, dan Mandra. Berdurasi 85 menit, film ini berhasil membawa penonton bernostalgia dengan menghidupkan kembali kenangan masa lalu yang menggambarkan kehidupan sehari-hari yang autentik. Penelitian ini menggunakan metode deskriptif kualitatif untuk menganalisis dialog film, dengan fokus pada interferensi semantis berdasarkan klasifikasi Jendra (dalam Budiarti, 2013), yang mencakup tiga jenis: (1) interferensi semantis perluasan, di mana konsep budaya dan istilah baru diadopsi, (2) interferensi semantis penambahan, yang menghasilkan bentuk baru dengan makna tambahan, dan (3) interferensi semantis penggantian, di mana makna konsep baru menggantikan konsep lama. Objek penelitian adalah dialog dalam film, yang dianalisis menggunakan instrumen berupa tabel klasifikasi interferensi semantis. Dari hasil analisis, ditemukan sebanyak 60 data interferensi semantis yang menunjukkan pengaruh budaya lokal terhadap bahasa dalam film. Temuan ini menegaskan adanya dinamika perubahan semantis yang dipengaruhi oleh adaptasi lintas media. Penelitian ini diharapkan dapat memperkaya kajian linguistik dalam ranah interferensi semantis, serta memberikan wawasan baru tentang hubungan antara budaya, bahasa, dan media populer.
Sosialisasi Pengaruh Tindakan Bullying dan Penanganannya di SD Negeri 10 Manggar Baru Kota Balikpapan Firman, Firman; Dwirakha, Yusuf; Qodir, Isma Hanafiah; Riansyah, Riansyah; Hidayat, Fahmi; Suhardi, Suhardi; Effendy, Nada Mulia Septyani; Tanadi, Tjan Stefany
Abdimas Universal Vol. 7 No. 1 (2025): April
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Balikpapan (LPPM UNIBA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36277/abdimasuniversal.v7i1.2626

Abstract

This service aims to implement the socialisation programme on the influence of bullying  and how to deal with it on students of Grade VI at SD Negeri 010 Manggar Baru. The socialisation is conducted in order to anticipate the occurrence of bullying  against adolescents, especially the students of SDN 10 who are actually the future generations. This community service was conducted at SD Negeri 10 Manggar Baru, Balikpapan City with the subject of Grade VI students. The service educates the students about what bullying  is and its effects. The impact of bullying  is very influential on students' mental health, academic performance and social relationships. Efforts to anticipate bullying  in schools are education about bullying , involvement of parents and community and consistent implementation of school rules. The stages of socialisation implementation are reporting and coordinating with the school, preparing materials, hearing the principal and class teacher, preparing the venue and media needed. Furthermore, the results of this activity provide the students with knowledge about the meaning, influence, impact and how to deal with it. In this way, the anticipation of the spread of bullying  behaviour among school children can be dealt with at an early stage.
Respons Penerjemahan melalui Google Translate terhadap Kata, Nama, dan Istilah-Istilah Lokal Berbahasa Indonesia ke Dalam Kalimat Berbahasa Inggris Hidayat, Fahmi; Anam, Ahmad Khoiril
Nitisara: Jurnal Ilmu Bahasa Vol 1, No 2 (2023): Nitisara: Jurnal Ilmu Bahasa
Publisher : Universitas Indraprasta PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30998/ntsr.v1i2.2662

Abstract

Penelitian ini bertujuan untuk mengetahui respons penerjemahan melalui Google Translate terhadap kata, nama, dan istilah-istilah lokal berbahasa Indonesia ke dalam kalimat berbahasa Inggris. Metode yang digunakan dalam penelitian ini adalah metode kualitatif deskriptif. Adapun jenis penelitian ini adalah penelitian linguistik komputasi. Aspek komputasi yang dijadikan sebagai objek dalam penelitian ini berupa mesin penerjemahan, yakni Google Translate. Data yang diambil adalah berupa hasil penerjemahan melalui Google Translate berupa kalimat berbahasa Inggris dari kalimat-kalimat yang berisi kata, nama, dan istilah-istilah lokal berbahasa Indonesia. Hasil penelitian ini menunjukkan bahwa: (1) layanan Google Translate mengalami kesulitan dalam menerjemahkan kata-kata yang berhomonim; (2) layanan Google Translate mengalami kesulitan dalam menerjemahkan nama-nama kota yang berhomonim dengan kosakata bahasa Indonesia; dan (3)  layanan Google Translate mengalami kesulitan dalam menerjemahkan istilah-istilah lokal yang lazim digunakan dalam penggunaan bahasa Indonesia.
Penokohan dalam Novel Surat Cinta untuk Imamku dan Implikasinya terhadap Pembelajaran Bahasa Indonesia Hidayat, Fahmi
Nitisara: Jurnal Ilmu Bahasa Vol 2, No 1 (2024): Nitisara: Jurnal Ilmu Bahasa
Publisher : Universitas Indraprasta PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30998/ntsr.v2i1.3208

Abstract

This research aims to determine the characterizations contained in the novel Surat Cinta Untuk Imamku by Indriani Sonaris. The research method used to analyze this novel uses a qualitative approach with a descriptive method which aims to objectively describe the characterizations contained in the novel Surat Cinta Untuk Imamku. After the researcher analyzed, there were characterizations in the novel Surat Cinta Untuk Imamku which consisted of characterizations, namely the main character, additional characters, protogonist characters and antagonist characters. Of the 51 data found, 51% were main characters, 21.56% were antagonists, and there were at least 2 findings, namely 13.72% protogonist characters, and 13.72% additional characters. The characterizations in the novel Surat Cinta Untuk Imamku are selfish, unstable, caring, responsible, suspicious, angry, fragile.
Interferensi Semantis pada Film Si Doel The Movie Prameswari, Jatut Yoga; Rahmawati, Rahmawati; Hidayat, Fahmi
Nitisara: Jurnal Ilmu Bahasa Vol 2, No 2 (2024): Nitisara: Jurnal Ilmu Bahasa
Publisher : Universitas Indraprasta PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30998/ntsr.v2i2.3758

Abstract

Penelitian ini bertujuan mengkaji fenomena interferensi semantis dalam dialog film Si Doel The Movie, adaptasi dari sinetron populer era 1990-an, Si Doel Anak Sekolahan. Sinetron ini dikenal karena alur cerita sederhana yang mencerminkan kehidupan nyata, menjadikannya tontonan favorit masyarakat lintas generasi. Film adaptasi yang dirilis pada 2 Agustus 2018 ini diproduksi oleh Falcon Pictures dan Karnos Film, disutradarai oleh Rano Karno, serta dibintangi oleh Rano Karno, Maudy Koesnaedi, Cornelia Agatha, dan Mandra. Berdurasi 85 menit, film ini berhasil membawa penonton bernostalgia dengan menghidupkan kembali kenangan masa lalu yang menggambarkan kehidupan sehari-hari yang autentik. Penelitian ini menggunakan metode deskriptif kualitatif untuk menganalisis dialog film, dengan fokus pada interferensi semantis berdasarkan klasifikasi Jendra (dalam Budiarti, 2013), yang mencakup tiga jenis: (1) interferensi semantis perluasan, di mana konsep budaya dan istilah baru diadopsi, (2) interferensi semantis penambahan, yang menghasilkan bentuk baru dengan makna tambahan, dan (3) interferensi semantis penggantian, di mana makna konsep baru menggantikan konsep lama. Objek penelitian adalah dialog dalam film, yang dianalisis menggunakan instrumen berupa tabel klasifikasi interferensi semantis. Dari hasil analisis, ditemukan sebanyak 60 data interferensi semantis yang menunjukkan pengaruh budaya lokal terhadap bahasa dalam film. Temuan ini menegaskan adanya dinamika perubahan semantis yang dipengaruhi oleh adaptasi lintas media. Penelitian ini diharapkan dapat memperkaya kajian linguistik dalam ranah interferensi semantis, serta memberikan wawasan baru tentang hubungan antara budaya, bahasa, dan media populer.
EFL TEACHERS’ CHALLENGES IN TEACHING SPEAKING AT SMAN 3 BANJARMASIN Rochmah, Ziana Nor; Kamal, Sirajuddin; Hidayat, Fahmi
Jurnal Manajemen Pendidikan Vol. 10 No. 2 (2025): Regular Issue
Publisher : STKIP Pesisir Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34125/jmp.v10i2.676

Abstract

In Indonesia, English is taught as a foreign language. EFL students typically study English only in formal educational settings such as classroom and have limited opportunities to practice speaking the language in real-life situation. Hence, English teacher particularly in EFL countries, teaching speaking skills can be challenging. The objective of this is to identify specific teaching challenges and the efforts taken by teachers to address them. A qualitative descriptive method was used, involving interviews, observations, and documentation with two English teachers. The findings reveal seven key challenges: noise level, students speaking L1 language inappropriate time, limited time, unengaged students, the role of exposure in English, handling lower English classes and large class. To address these issues, teachers implemented five main strategies: keep student in the target language, using group work, making a careful choice of topic, teachers are placed to provide comprehensible input and activity on easy language. Many studies have focused only on the challenges in teaching speaking. However, they do not explain the efforts teacher used to overcome them. Analyzing the challenges and efforts in teaching speaking can provide understanding of how teacher overcome these challenges in classroom.