Rosmaliati Rosmaliati

University of Mataram | UNRAM · Electrical Engineering Department

We analyzed the seismic signals of the Mount Rinjani station to identify possible seismic anomalies before a series of major earthquakes on Lombok Island in 2018. We observe anomalies before earthquake events Mw >= 5.90. This research applies the detrended fluctuation analysis (DFA) method to investigate possible earthquake precursors associated wi...

Kelor adalah sejenis tumbuhan yang termasuk dalam keluarga Moringaceae. Tumbuhan ini dikenal juga dengan nama (Moringa oleifera). Kelor memiliki beragam manfaat dan telah lama dimanfaatkan oleh berbagai budaya karena berbagai bagian tanaman ini memiliki nilai gizi yang tinggi serta sifat-sifat kesehatan yang dianggap bermanfaat. Beberapa bagian dar...

Biogas is a methane gas produced from the fermentation of organic matter by anaerobic bacteria. Utilization of biogas as an energy source can be done by burning biogas directly, and indirectly by converting it into electrical energy. Biogas-fueled electric energy potential to be developed in the NTB area. The fundamental reason is: the government p...

Sebuah sistem informasi mengenai jalur evakuasi dan titik kumpul telah dirancang bagi para penghuni gedung bertingkat di Fakultas Teknik Universitas Mataram. Terdapat dua tahapan kegiatan yang dilakukan, yakni identifikasi rambu keselamatan dan titik kumpul yang tersedia, serta menentukan jalur evakuasi yang aman dan terdekat dengan bantuan algorit...

Ultrasonic welding workload on vertical roller welding components on face-mask body machine in making masks has a high vibration of up to 20kHz. This high vibration causes the locking bolt to loosen the serrations, thus causing a greater failure of function, such as wear and tear on the teeth. If this function fails, it will cause downtime and high...

ABSTRAK Gempa Lombok 2018 mengakibatkan gedung-gedung di lingkungan FT Unram mengalami kerusakan yang cukup parah di beberapa bagian. Kerusakan yang cukup parah terjadi di Gedung A dan Gedung B namun sampai saat ini penanganan perbaikan menyeluruh Gedung yang terdampak gempa tersebut belum optimal. Beberapa bagian Gedung B khususnya pada jurusan Te...

Fault detection in the incipient stage is necessary to avoid hazardous operating conditions and reduce outage rates in transformers. Fault-detected dissolved gas analysis is widely used to detect incipient faults in oil-immersed transformers. This paper proposes fault diagnosis transformers using an artificial neural network based on classification...

Energi listrik dari waktu ke waktu mengalami peningkatan tidak dapat dipastikan. Hal ini menjadi masalah apabila tidak diperkirakan, pihak penyedia dalam hal ini PT. PLN harus mampu menyediakan pasokan energi listrik yang sesuai dengan porsinya dan tidak melebihi batas. Sehingga diperlukan teknik peramalan untuk memprediksikan kebutuhan energi list...

The Mandalika area has become an area of global concern because it has a GP motorcycle racing circuit. Mandaika is geographically closely related to the 9 buffer villages. The village is Sade Village, which is a unified area that must be maintained due to the land being taken as backfill for the circuit construction area. Changes in land use are a...

In the covid-19 condition, lectures at the Department of Electrical Engineering, Mataram University changed from a face-to-face process to via the Internet. T here will be a very sharp increase in demand. The use of data initially provided by the University of Mataram using a free hotspot network turned into a burden on lecturers and students. This...

After the 2018 Lombok Earthquake, buildings at the Faculty of Engineering, University of Mataram (FT Unram) were severely damaged and there was no comprehensive treatment. Facilities for earthquake mitigation are still minimal and if available they are not designed and placed properly. Some parts of the building have been renovated but appear unfin...

In this study, we performed research on electromagnetic anomalies related to earthquakes as early signs (precursors) that occurred in Fukushima, Japan on February 13th, 2021. The research focused on the utilization of geomagnetic field data which was derived from the Kakioka (KAK), Kanoya (KNY), and Memambetsu (MMB) observatories, particularly in t...

After the 2018 Lombok earthquakes, buildings within the Engineering Faculty of the University of Mataram (FT Unram), were severely damaged and there have been no comprehensive treatments. Facilities to support earthquake mitigation, such as signs for evacuation routes and assembly points (temporary evacuation sites), are still minimal, and even if...

p>Kualitas dan ketersediaan pasokan listrik menjadi hal yang sangat penting. Kegagalan pada transformator menyebabkan pemadaman listrik yang dapat menurunkan kualitas layanan kepada pelanggan. Oleh karena itu, pengetahuan tentang umur transformator sangat penting untuk menghindari terjadinya kerusakan transformator secara mendadak yang dapat mengur...

ABTRAKDalam kebijakan energi nasional, pemerintah terus berkomitmen untuk melakukan pengembangan danmeningkatkan pemanfaatan pembangkit energi terbarukan hingga 23 persen pada tahun 2025. Saat ini,potensi energi terbarukan di Indonesia belum dimanfaatkan dengan optimal. Hal ini terlihat dari potensienergi terbarukan Indonesia mencapai kira-kira 400...

Dalam kebijakan energi nasional, pemerintah terus berkomitmen untuk melakukan pengembangan dan meningkatkan pemanfaatan pembangkit energi terbarukan hingga 23 persen pada tahun 2025. Saat ini, potensi energi terbarukan di Indonesia belum dimanfaatkan dengan optimal. Hal ini terlihat dari potensi energi terbarukan Indonesia mencapai kira-kira 400 GW...

Transformator distribusi adalah salah satu instrument penting dalam penyaluran listrik ke konsumen. Selain penggunaan normal, kondisi gangguan pada transformator dapat menyebabkan menurunnya umur transformator sehingga kinerja transformator tidak optimal sampai batas umur operasinya. Oleh karena itu penting sekali dilakukan menghitung sisa umur tra...

Understanding of electrical installation and the use of electrical equipment that is proper and safe, has a big contribution to the safety and security around us. The introduction of safe electrical installations according to the Indonesian National Standard, namely the General Requirements for Electrical Installations (SNI: PUIL 2011) needs to be...

Abstrak. Total magnetic field measurements have been done in the Sembalun geothermal prospect area, in Sembalun Lawang village, East Lombok Regency from 1 to 3 July 2019 using GSM-19T Proton Precession Magnetometer (PPM). Data processing was performed with diurnal correction and the 12 th IGRF (International Geomagnetics Reference Field) correction...

The distribution transformer is an important tool in the power system. During operation, the transformer produces vibrations indicated on its performance. Transformer monitoring based on the condition of the transformer becomes very important due to mechanical failure resulting in different vibration patterns caused by winding, cores or both. Diffe...