Article Per Year (5 Year)
p-Index From 2020 - 2025
4.091
P-Index
This Author published in this journals
All Journal Jurnal Penelitian Fisika dan Aplikasinya (JPFA) WARTA ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika JOURNAL ONLINE OF PHYSICS JPSE (Journal of Physical Science and Engineering) Jurnal Geocelebes Panrita Abdi - Jurnal Pengabdian pada Masyarakat JPPPF (Jurnal Penelitian dan Pengembangan Pendidikan Fisika) Martabe : Jurnal Pengabdian Kepada Masyarakat Abdimas Umtas : Jurnal Pengabdian kepada Masyarakat PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Indonesian Physical Review Jurnal Kumparan Fisika Al-Khidmat : Jurnal Ilmiah Pengabdian Kepada Masyarakat Jurnal Inovasi Pengabdian Masyarakat Pendidikan JAPI: Jurnal Akses Pengabdian Indonesia Jurnal Pengabdian Pada Masyarakat
Elfi Yuliza
Department Of Physics, Faculty Of Mathematics And Natural Sciences, University Of Bengkulu
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Transportation Veterinary Other

Published : 26 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 26 Documents
Search

 1   2   3 
PEMANFAATAN SALURAN IRIGASI SAWAH DESA RINDU HATI BENGKULU TENGAH MELALUI TEKNOLOGI TEPAT GUNA MIKROHIDRO Riska ekawita; Elfi Yuliza; Yazid Ismi Intara
Panrita Abdi - Jurnal Pengabdian pada Masyarakat Vol. 7 No. 2 (2023): Jurnal Panrita Abdi - April 2023
Publisher : LP2M Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/pa.v7i2.18454

Abstract

The need for electrical energy is increasing in every area and year. However, not all sites can be fulfilled - incredibly outlandish locations. At the same time, the natural potential in there, such as river irrigation flows, can be used as an additional source of electricity for the area. This paper describes the science and technology-based community service activities by applying appropriate micro-hydro technology to produce electrical energy. This service aims to optimize natural potential in the form of rice field irrigation channels as street lighting in Rindu Hati Village, Central Bengkulu Regency. The methods are socialization and design of micro hydro systems with service participants. The service implementation consists of equipment preparation, socialization, and installation of a micro-hydro system with service participants from members of a group ‘Pokdarwis’ of the Rindu Hati Village. The involvement of participants with the service team made this activity possible to carry out properly so that street lighting with energy sources from irrigation channels could be realized. Monitoring the condition of the sustainability of the micro-hydro system was still carried out by appointing one of the service participants as the person in charge of the micro-hydro system.  ---  Kebutuhan masyarakat terhadap energi listrik setiap tahun terus meningkat. Namun tidak semua daerah dapat tercukupi kebutuhan listriknya, terutama untuk daerah yang terpencil, sedangkan potensi alam di daerah terpencil seperti aliran irigasi sungai dapat dimanfaatkan sebagai sumber listrik tambahan bagi daerah tersebut . Tulisan ini memaparkan kegiatan pengabdian masyarakat berbasis iptek melalui penerapan teknologi tepat guna mikrohidro dalam upaya menghasilkan energi listrik. Tujuan pengabdian ini  untuk mengoptimalkan potensi alam berupa saluran irigasi sawah sebagai penerangan jalan Desa Rindu Hati, Kabupaten Bengkulu Tengah. Metode yang digunakan adalah sosialisasi dan rancang bangun sistem mikrohidro dengan peserta pengabdian. Pelaksanaan pengabdian terdiri dari tahapan persiapan perangkat, sosialisasi dan instalasi skistem mikrohidro dengan peserta pengabdian yang berasal dari anggota Pokdarwis Desa Rindu Hati. Hasil dari kegiatan ini adalah terbentuknya sistem mikrohidro yang memanfaatkan aliran irigasi sungai sehingga dapat dimanfaatkan sebagai sumber penerangan lampu jalan di lokasi tersebut.Pemantauan kondisi keberlangsungan sistem mikrohidro tetap dilakukan dengan penunjukkan salah seorang peserta pengabdian sebagai penanggung jawab sistem mikrohidro.
DISTANCE RANGE TEST OF SW-420 SENSOR-BASED VIBRATION DETECTION SYSTEM Sultan Nanda Alamsyah; Wery Melisa; Okta Sari; Mutia Raudhatul Zahra; Muhammad Yuliansyah Putra; Zafran Afif; Shalih Muhammad Abdul Azhim; Elfi Yuliza; Riska Ekawita
Jurnal Kumparan Fisika Vol. 6 No. 3: Desember 2023
Publisher : Unib Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/jkf.6.3.177-184

Abstract

ABSTRAK   Proses gelombang yang disebabkan oleh getaran dapat dimanfaatkan dalam hal pemantauan struktur bangunan, analisis kebisingan peralatan industri, dan deteksi gempa. Gempa bumi memiliki dampak berbahaya pada manusia karena pergerakan lempeng bumi di bawah permukaan. Berbagai teknologi di berbagai cabang ilmu dikembangkan untuk dapat mendeteksi pergerakan lempeng dengan cepat dan baik. Tulisan ini juga menguji jangkauan sensor SW-420 terhadap sumber getaran. Memahami jangkauan sensor SW-420 sangat penting karena memungkinkan Anda untuk menyesuaikan batas sensitivitasnya sesuai dengan kebutuhan aplikasi. Meskipun informasi ini umumnya tersedia dalam lembar data, memahami jangkauan dapat membantu mengoptimalkan penggunaan sensor untuk deteksi getaran atau guncangan yang lebih akurat. Respon sensor akan dikirim ke mikrokontroler untuk menghasilkan sinyal suara pada buzzer ketika terjadi getaran. Mikrokontroler akan memproses sinyal analog dari sensor menjadi sinyal digital. Semakin jauh jangkauan sensor, semakin baik sensor tersebut dalam mendeteksi getaran. Dalam uji ini, dilakukan uji jangkauan terhadap sumber getaran. Sumber getaran berasal dari objek dengan massa tertentu yang dijatuhkan. Dalam uji ini, diketahui bahwa SW-420 mampu mendeteksi dengan jarak maksimum 200 cm dari sumber getaran.   Kata Kunci: Deteksi, Getaran, Jarak, Mikrokontroler, Sensor   ABSTRACT   Wave propagation due to vibration can be utilized in terms of monitoring building structures, analyzing industrial equipment noise, and earthquake detection. Earthquakes have a harmful impact on humans due to the movement of subsurface plates. Various technologies in various branches of science were developed to be able to detect plate movements early and well. This paper also tests the range of the SW-420 sensor to the vibration source. Understanding the range of the SW420 sensor is crucial as it allows you to precisely adjust its sensitivity limits according to the application's needs. Although this information is generally available in the datasheet, comprehending the range can assist in optimizing the sensor's usage for more accurate detection of vibrations or shocks. The sensor response will be sent to the microcontroller to produce a sound signal on the buzzer when there is vibration. The microcontroller will process the analog signal from the sensor into digital. The farther the range of the sensor, the better it is at detecting vibrations. In this test, a range test is carried out on the vibration source. The source of the vibrations comes from objects with a certain mass that is dropped. In this test, it was found that the SW-420 was able to detect with a maximum distance of 200 cm from the vibration source.   Keywords: Detection, Distance, Microcontroller, Sensor, Vibration
The Characterization of Wave Parameters in Laboratory Scale of Wave Simulator Using Video Tracking Analysis Syafitri, Nur Linda; Ekawati, Riska; Yuliza, Elfi
Jurnal Penelitian & Pengembangan Pendidikan Fisika Vol 9 No 1 (2023): JPPPF (Jurnal Penelitian dan Pengembangan Pendidikan Fisika), Volume 9 Issue 1, J
Publisher : Program Studi Pendidikan Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/1.09102

Abstract

Understanding the wave parameters in the ocean wave phenomenon is necessary to learn and develop the potential of ocean wave energy. Therefore, this study created a simple laboratory-scale of wave simulator that was developed using an electric motor. The various wave parameters obtained by different treatments were carried out using variations in the angle of the wedge inclination and the rotational speed of the wave generator. In this system, two pulleys of different sizes were used, a large pulley with a diameter of 20 cm and a small pulley with a diameter varying between 1.25 cm and 1.98 cm. Changing the size of the pulleys uses the principle of axial rotational motion to produce different rotational speeds. Moreover, the video tracker analysis application was used to characterize the parameters of the waves generated in the simulator that has been designed. The parameters obtained include wave height, amplitude, frequency, wave period, wavelength, and wave propagation speed. In the examination and analysis that have been carried out, it has been found that increasing wave height and amplitude correlates with increasing the inclination of wedges. The frequency and speed of the waves are linearly related to changes in the rotation speed of the wave generator. For the characteristic wavelength, there is inverse relation to the rotational speed. Based on this study, the wave simulator system and video tracking analysis application can be used to increase the understanding of wave parameters. In addition, this research can also be used as preliminary research on developing a prototype for an ocean wave energy converter on the laboratory scale.
Penyiram Air Otomatis Kumbung Jamur Tiram Pada Pesantren Ma. Mambaul ‘Ulum, Bengkulu Tengah Ekawita, Riska; Elfi Yuliza; Supiyati
Jurnal Inovasi Pengabdian Masyarakat Pendidikan Vol. 4 No. 1 (2023)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/jurnalinovasi.v4i1.28686

Abstract

Pondok Pesantren MA. Mambaul 'Ulum, which is located in Bengkulu Tengah Regency, Bengkulu Province, has an oyster mushroom business unit to support the operational needs of the school. Maintenance, especially baglog watering on oyster mushroom house, is carried out conventionally. Through service activities, a baglog sprinkler automation system was built that works based on humidity and temperature in the mushroom house. The system utilizes electrical energy sourced from solar panels that are integrated with an automatic sprinkler system. The method used in the target audience of service (teachers and students) starts from the initial coordination, then the delivery of the material in theory and practice, followed by the installation of the system as a whole and running and testing the system. Based on the test results, it was obtained that the system can run properly according to the conditions set on the automated system. The watering automatic system active while the oyster mushroom house in non-ideal environmental condition.
IoT Application of Simple Solar Intensity Monitoring System Using Photovoltaic Panel Lestari, Resma Puji; Yuliza, Elfi; Ekawita, Riska
JPSE (Journal of Physical Science and Engineering) Vol 8, No 1 (2023): JPSE (Journal of Physical Science and Engineering)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um024v8i12023p066

Abstract

Solar radiation data is useful for solar power plant (PLTS) development, the agricultural sector, renewable energy, transportation and communication, and other disciplines. This data is generally obtained from government agencies. The device used to measure solar radiation is a pyranometer. However, this equipment has limited availability and the data information is only owned by certain regions. Therefore, it is necessary to develop a simpler measuring instrument for the intensity of solar radiation. So that data information is obtained easily and the operation of tools is easy. In this study, photovoltaic panels were used to read the intensity of solar radiation. When this panel is exposed to the sun it will generate electricity and its output is proportional to its radiation. Data monitoring utilizes IoT. The measured results of measuring the intensity of solar radiation have a maximum value of 450.21 W/m2. The measured magnitude of the solar radiation value shows that the influence factors in the form of sunlight intensity, ambient temperature, and panel output power are proportional to the radiation value while environmental humidity is inversely proportional to the radiation value.
Sensitivity Testing of Simple Metal Detection System on Coil Dimension Change and Measurement Distance Bangun, Abel Melido; Yuliza, Elfi; Ekawita, Riska
JPSE (Journal of Physical Science and Engineering) Vol 8, No 2 (2023): JPSE (Journal of Physical Science and Engineering)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Metal residues in the soil at shallow depths can be detected with simple detectors. Development was carried out using several equipment tests. The purpose of this research is to design a simple metal detection system by testing the coil diameter, the wire diameter, and the number of coil windings to determine their effect on the detection distance of the metal detection system. The metal detection system in this study uses the pulse induction method, which uses one coil as a transmitter and receiver. The wire used 4 types of diameter sizes. For one size of wire diameter, three variations of the number of coil windings are made, and for each variation of the number of coil windings, five variations of coil diameter are made. The test results show that the diameter of the coil affects the detection distance of a simple metal detection system, the larger the diameter of the coil, the farther the detection distance for medium and large-sized metals, while for small metals, the lower the detection distance. Wire diameter affects the detection distance of a simple metal detection system, the larger the wire diameter, the farther the detection distance, and vice versa, the smaller the wire diameter, the lower the detection distance. The number of coil windings affects the detection distance of a simple metal detection system, the more turns, the farther the detection distance, while the fewer turns, the closer the detection distance.
Introduction to Science Learning Tools Based on Waste for Elementary School Students Ekawita, Riska; Supiyati; Saputra, Rahmat; Yosia Pandu S; Melisa, Wery; Yuliza, Elfi
ABDIMAS: Jurnal Pengabdian Masyarakat Vol. 8 No. 2 (2025): ABDIMAS UMTAS: Jurnal Pengabdian Kepada Masyarakat
Publisher : LPPM Universitas Muhammadiyah Tasikmalaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35568/abdimas.v8i2.6294

Abstract

Regulations and laws in Indonesia strongly support learning using teaching aids. Teaching media or aids are essential in the process of knowledge transfer for students. Students will find it easier to understand the lesson material if assisted by teaching aids, even if they are in a simple form. Teachers can introduce teaching aids made from recycled waste materials. Therefore, the aim of this community service activity is to introduce the development of teaching materials made from waste materials. A community service activity utilizing waste materials (cardboard, sticks, etc.) as classroom learning media will be conducted at SDIT Nurul Fikri, Bengkulu City. The target audience for this community service activity is teachers and some students. The method used consists of theory and practice. The service team will train teachers and students to create science teaching aids, particularly on the themes of pressure and energy. As a result of this activity, several examples of science teaching aids made from waste materials were produced. These teaching aids will certainly help enhance students' understanding and create their own appeal toward science subjects.
Pemberdayaan Masyarakat Nelayan di Daerah 3T melalui Kegiatan Produksi dan Pelatihan Pemasaran Jompol (Moolgarda seheli) Presto “Ya U Waika” Sipriyadi, Sipriyadi; Hayu, Rina Suthia; Yuliza, Elfi; Wibowo, Risky Hadi; Setiawan, Redo; Wulandari, Gustina Dwi; Aini, Nurul
Jurnal Pengabdian Pada Masyarakat Vol 10 No 2 (2025): Jurnal Pengabdian Pada Masyarakat
Publisher : Universitas Mathla'ul Anwar Banten

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30653/jppm.v10i2.1139

Abstract

Pulau Enggano sebagai daerah 3T di Indonesia yang masuk wilayah administrasi Bengkulu Utara menyimpan berbagai potensi sumber daya alam yang sangat besar. Posisi wilayah di sepanjang pesisir Pantai dengan kondisi alam yang masih alami menyebabkan hasil tangkapan ikan nelayan sebagai perekonomian utama masyarakat Enggano, sangat melimpah. Tujuan dari pengabdian ini adalah meningkatkan kreativitas dan kualitas produksi variasi olahan ikan hasil tangkapan nelayan mempercepat proses pengolahan menggunakan presto, dengan packaging yang menarik melalui pemasaran online dan offline sehingga meningkatkan perekonomian masyarakat sekitar. Metode yang digunakan yaitu dengan penerapan difusi iptek dengan menghasilkan suatu produk bagi konsumen meliputi pemilihan bahan dan produksi Jompol Presto, Packaging, dan Pemasaran Produk. Dari hasil pengabdian yang telah dilaksanakan diperoleh bahwa warga telah mengetahui dan memahami penggunaan panci presto sebagai alat pemasak ikan jompol dan penggunaan plastik vacuum press sebagai packaging ikan jompol presto. Enggano Island as 3T region in Indonesia which is included in the North Bengkulu administrative area holds a variety of enormous natural resource potential. The position of the area along the coast with natural conditions that are still natural causes the catch of fishermen as the main economy of the Enggano community, very abundant. The purpose of this research is to increase the creativity and quality of production of processed fish variations of fishermen's catches by accelerating the processing process using pressure cook, with attractive packaging through online and offline marketing to improve the economy of the surrounding community. The method used is the application of science and technology diffusion by producing a product for consumers including material selection and production of Jompol Presto, Packaging, and Product Marketing. The results of the service that has been carried out, it is obtained that residents already know and understand the use of pressure cookers as a means of cooking jompol fish and the use of vacuum press plastic as packaging for presto jompol fish.
LEVERAGING THE UBIQUITOUS GPS SENSOR ON THE SMARTPHONES FOR ACCESSIBLE LAND SURVEYING Habibullah, Ahmad Dhuha; Yuliza, Elfi; Almadi, Ismail Fahmy; Intara, Yazid Ismi; Ekawita, Riska
Indonesian Physical Review Vol. 8 No. 2 (2025)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v8i2.361

Abstract

The Global Positioning System (GPS) is an essential tool in land surveying. GPS has become an alternative method of surveying that requires less manpower and less time. However, GPS devices are still expensive to buy, especially for students. On the other hand, almost every student has a smartphone with a built-in GPS sensor, so this GPS is certainly accessible to everyone with a smartphone. This study used a smartphone's GPS to conduct land surveying at the campus of Bengkulu University. This smartphone’s GPS was used to track various parameters such as coordinates, elevation, and distance between two or more points to calculate the area within the study area. The innovative method of using the built-in GPS sensor in smartphones will provide convenience for users and introduce simplified open-source software for the land measurement process. The measurement was calibrated using a conventional roll meter to verify the linear error by comparing the two measurements between the smartphone’s GPS and roll meter. The smartphone’s GPS reading was logged using GPS Waypoints and My Tracks, free Android applications on the Google Play store. This study's average error in measurements obtained using GPS on smartphones was 3.02%. This value is sufficient for the initial stage of low-cost land surveys and falls within ideal conditions for GPS measurements. Therefore, this article emphasizes the potential of smartphone GPS to optimize techniques in education and scientific investigations.
Preliminary Study on the Influence of Blade Shape and Quantity in Water Turbines using the INA219 Sensor SAGALA, MONAESA; MAHDALYA, ELLIN ERNITA; SIHOMBING, YOSIA PANDU; ULANDARI, TRESI PITRIA; SULISTIANI, EVI; YULIZA, ELFI; EKAWITA, RISKA
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 13, No 3: Published July 2025
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v13i3.314

Abstract

The design of turbine blades plays a crucial role in enhancing the efficiency of converting the kinetic energy of water into electrical energy, particularly on a small scale. This study aims to evaluate the influence of blade shape and number on turbine performance, as well as to compare the accuracy of voltage measurements using an INA219 sensor based on Arduino Uno with a digital multimeter. Four blade shapes were tested: cylindrical, semi-cylindrical, concave oval, and flat plate, each configured with 4 and 8 blades. Tests were conducted under three water flow rate conditions (low, medium, and high) to observe the optimization process of turbine performance. The results showed that the cylindrical blade with 8 blades produced the highest voltage of 1.03 V at high flow rate. The average measurement difference between the sensor and the multimeter was ±0.015 V, indicating good accuracy. These findings confirm that the cylindrical blade is the most efficient, and the INA219 sensor based on Arduino is suitable for use in micro-hydro turbine voltage monitoring systems.
Co-Authors Afifah Amatullah, Elin Nur Ahmad Azmi Nasution Aini Nurul Almadi, Ismail Fahmy Bangun, Abel Melido Chandra Kurniawan, Chandra Dyah Setyo Rini Edkayasa, Mardho Tillah Ekawati, Riska Eko Heru Purwanto Fauzi, Muhammad Khafid Fitriani, Dyah Habibullah, Ahmad Dhuha Herlin Fransiska Irkhos Irkhos Lestari, Resma Puji Lizalidiawati Lizalidiawati MAHDALYA, ELLIN ERNITA Melisa, Wery Mikrajuddin Abdullah Muhammad Taufiqurrahman Syah Muhammad Yuliansyah Putra Mutia Raudhatul Zahra Nadya Amalia Nasution, Ahmad Azmi Nolla Kusumawardani Nur Kholis Nursakinah Suardi Nutia Rosdalena Okta Sari Purwanto, Eko Heru Rahmat Awaludin Salam Rahmayanti, Handika Dany Reyvo Valeriyan Rida Samdara Rina Suthia Hayu Rini, Dyah Setyo Riska Ekawita Riska Ekawita Riska Ekawita Riska Ekawita Rosdalena, Nutia SAGALA, MONAESA Saputra, Rahmat Sari, Vera Fuspita Setiawan, Redo Shalih Muhammad Abdul Azhim SIHOMBING, YOSIA PANDU Sipriyadi Suardi, Nursakinah SULISTIANI, EVI Sultan Nanda Alamsyah Supiyati . Suwarsono Suwarsono Suwarsono Suwarsono Syafitri, Nur Linda Syah, Muhammad Taufiqurrahman Ulandari, Tresi Pitria Valeriyan, Reyvo Vera Fuspita Sari Vera Vionita, Vionita Wery Melisa Wibowo, Risky Hadi Wulandari, Gustina Dwi Yazid Ismi Intara Yazid Ismi Intara Yosia Pandu S Zafran Afif