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Potential of Coconut Shell Waste in South Korleko Village as Raw Material for Making Briquette Products Sutha Yadnya, Made; Ariana Wulandari, Haspita; Irawan Apriandi , M.; Vrndavanesvari Devi , Radhe; Maryani, Indah; Ariana Wulandari, , Haspita; Sopian Holis , M.; Supiana, Wina; Zulhidayati, Masni; Dimas Ananda, M.; Zulvia, Ridho; Ade Zaini Hasnan P, M; Rizki Amalia , Annisa
Jurnal Wicara Vol 3 No 2 (2025): Jurnal Wicara Desa
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/wicara.v3i2.6785

Abstract

Kelapa menjadi produk hasil perkebunan yang cukup melimpah di Indonesia. Korleko Selatan merupakan salah satu desa di Kecamatan Labuhan Haji, Lombok Timur, Nusa Tenggara Barat. Korleko Selatan menjadi salah satu desa dengan produksi kelapa yang cukup tinggi. Salah satu limbah yang dihasilkan dalam produksi olahan produk kelapa adalah tempurung kelapa. Briket dapat menjadi salah satu sumber energi alternatif hasil dari pemanfaatan lebih lanjut tempurung kelapa yang melalui proses pemadatan. Kelompok KKN PMD Universitas Mataram melalui kegiatan ini, melakukan sosialisasi dan pelatihan pembuatan briket dengan memanfaatkan limbah tempurung kelapa. Masyarakat terlihat antusias dalam mengikuti kegiatan ini. Adanya kegiatan ini dapat menjadi motivasi masyarakat untuk mengembangkan dan meningkatkan nilai ekonomi dalam pemanfaatan secara maksimal produk-produk olahan berbahan dasar kelapa
Penerapan Metode Relay Node Menggunakan Komunikasi Kooperatif Pada Wilayah Yang Tidak Terjangkau Sinyal di Kawasan Kantor Bupati Lombok Timur Chandra, Wahyu Chandra Parhadi; Muhamad Syamsu Iqbal; Made Sutha Yadnya
Jurnal Cahaya Mandalika ISSN 2721-4796 (online) Vol. 5 No. 2 (2024)
Publisher : Institut Penelitian Dan Pengambangan Mandalika Indonesia (IP2MI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/jcm.v5i2.3084

Abstract

Saat ini sistem komunikasi seluler di Indonesia telah memasuki era 4G LTE-Advanced (Long Term Evolution-Advanced) dan berkembang menuju era 5G. Hingga saat ini, dalam menyasar pengguna 4G LTE, telah dilakukan pemetaan coverage area BTS (Base Transceiver Station) untuk mengetahui wilayah mana yang masih belum terjangkau sinyal. Diketahui, di kawasan Kantor Bupati Lombok Timur yang merupakan kawasan perkotaan, masih terdapat wilayah yang sinyalnya lemah bahkan hilang sinyal (Blankspot). Pada penelitian ini akan diterapkan teknik Relay Node dengan komunikasi kooperatif pada kondisi tersebut untuk menjangkau wilayah yang tidak terjangkau sinyal di wilayah kantor Bupati Lombok Timur untuk meningkatkan kualitas layanan jaringan 4G di wilayah tersebut. Penelitian ini akan dilakukan dengan simulasi menggunakan software Matlab, yang hasilnya akan digambarkan dalam bentuk grafik dan tabel sehingga diketahui parameter kualitas sinyal setelah menggunakan teknik Relay Node.
Unraveling the Seismic Signal Anomaly at Mount Rinjani Station: In-Depth Exploration with the Detrended Fluctuation (DFA) Analysis Method in Connection with the 2018 Big Earthquake on Lombok Island, West Nusa Tenggara Kanata, Bulkis; Rosmaliati; Zubaidah, Teti; Yadnya, Made Sutha; Zainuddin, Abdullah; Ratnasari, Dwi; Fitratunnisa, Nur; Akbar, Muhammad Fajrin
Jurnal Penelitian Pendidikan IPA Vol 10 No 1 (2024): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i1.6263

Abstract

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 with the analyzed earthquake. The results showed a relationship between scaling seismic signals (α) that exceeds the threshold of α values during the analysis period, and there is a deviation of the root mean square fluctuations in the corresponding scaling that should be rising but constant. The value of α with constant root mean square fluctuations occurs one to three days before the preliminary earthquake Mw 6.40 (28/07/2018) UTC and eight to 10 days before the main earthquake Mw 6.90 (05/08/2018). The Mw 6.90 earthquake had the most magnitude and could significantly contribute to the appearance of seismic anomalies.
Pemanfaatan Biogas untuk Mendukung Penerangan Mandiri Berbasis Energi Terbarukan di Rumah Qur’an Sembalun Rosmaliati, Rosmaliati; Kanata, Bulkis; Yadnya, Made Sutha; Zainuddin, Abdullah; Rachman, A. Sjamsjiar; Paniran, Paniran; Akbar, Lalu Muhamad Roviq; Suharyadi, Farhan Ahmad
Jurnal Pustaka Mitra (Pusat Akses Kajian Mengabdi Terhadap Masyarakat) Vol 5 No 6 (2025): Jurnal Pustaka Mitra (Pusat Akses Kajian Mengabdi Terhadap Masyarakat)
Publisher : Pustaka Galeri Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55382/jurnalpustakamitra.v5i6.1363

Abstract

Keterbatasan pasokan listrik dan ketergantungan pada energi fosil menjadi permasalahan utama yang dihadapi masyarakat di Rumah Qur’an Sembalun. Kondisi ini mendorong perlunya pengembangan sumber energi alternatif yang ramah lingkungan dan berkelanjutan. Kegiatan pengabdian ini bertujuan untuk memanfaatkan biogas sebagai sumber energi listrik mandiri melalui penerapan sistem digester dan penampungan plastik berkapasitas 8 m³ yang terhubung dengan generator berkapasitas 700 watt. Metode pelaksanaan meliputi pengolahan limbah kotoran sapi dalam digester, penyaluran biogas ke penampungan, dan pengujian kinerja generator dalam menyalakan lampu LED hemat energi. Hasil pengujian menunjukkan bahwa sistem biogas mampu menghasilkan daya listrik antara 8 hingga 58 watt, dengan lama nyala total mencapai 60 menit. Daya rata-rata yang dihasilkan sebesar 15,28 watt dibandingkan daya nominal 15 watt, sehingga diperoleh efisiensi konversi energi sebesar 98,13%. Kegiatan ini membuktikan bahwa penerapan biogas berbasis penampungan plastik berkapasitas 8 m³ efektif untuk mendukung penerangan mandiri, sekaligus memberikan manfaat tambahan berupa pengelolaan limbah ternak dan pengurangan emisi gas rumah kaca, yang berkontribusi terhadap upaya kemandirian energi dan keberlanjutan lingkungan di wilayah pedesaan.
Solar Powered Vibration Propagation Analysis System using nRF24l01 based WSN and FRBR Wedashwara, Wirarama; Yadnya, Made Sutha; Sudiarta, I Wayan; Arimbawa, I Wayan Agus; Mulyana, Tatang
JOIV : International Journal on Informatics Visualization Vol 7, No 1 (2023)
Publisher : Society of Visual Informatics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/joiv.7.1.1592

Abstract

Prevention of the effects caused by natural disasters such as earthquakes and landslides requires analysis of vibration propagation. In outdoor applications, internet sources such as WIFI are not always available, so it requires alternative data communications such as nRF24l01. The system also requires a portable power source such as solar power. This research aims to develop a vibration propagation analysis system based on the nRF24l01 wireless sensor network and solar power by implementing the fuzzy rule-based regression (FRBR) algorithm. The system consists of two piezoelectric and nrf24l01 vibration sensors. The system also uses a third node equipped with temperature and soil moisture sensors, air temperature and humidity, and light intensity as environmental variables. The evaluation results show the Quality of Services (QoS) results with a throughput of 99.564%, PDR 99.675%, and a delay of 0.0073s. The Fuzzy Association Rule (FAR) extraction results yield nine rules with average support of 0.319 and confidence of 1 for vibration propagation. The availability of solar power was evaluated with an average current value of 0.250A and a voltage of 3.266V. The results of FRBR are based on the propagation of the vibration that propagated and produced a mean square error (MSE) of 0.141 and a mean absolute error (MAE) of 0.165. The correlation matrix and FAR results show that only soil moisture has a major effect on the magnitude and duration of propagation. However, other variables can regress soil moisture with MSE 0.232 and MAE 0.287.
PROGRAM PELATIHAN KESELAMATAN KERJA DALAM JAMINAN SOSIAL KETENAGAKERJAAN BAGI PEKERJA MEP (MEKANIKAL, ELKTRIKAL, PLUMBING DAN AC ) LOKASI SAWANGAN NUSA DUA BALI Wiryajati, I Ketut; Yadnya, Made Sutha; Adnyani, Ida Ayu Sri; Citarsa, Ida Bagus Fery; Satiawan, Nyoman Wahyu; Suksmadana, I Made Budi
Jurnal Pepadu Vol 6 No 3 (2025): Jurnal Pepadu
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/pepadu.v6i3.7765

Abstract

The importance of Mechanical, Electrical, Plumbing and Air Conditioning (MEP) cannot be overlooked, as these systems are interconnected to create a comfortable and safe environment. For example, without a good electrical system, mechanical devices such as air conditioners and heaters cannot function. Similarly, without adequate plumbing, the provision of clean water inside the building will inevitably be disrupted. MEP also affects the energy efficiency and operations of buildings, which ultimately impacts the comfort of its occupants. With a better understanding of MEPs, both developers and building users can ensure that each component is functioning properly. For MEP workers, each mass per group consists of 5-10 people, provided with 6 groups, so that the total number of workers is around 30 people. For this service stage, only 20 people registered and attended. The result of this service is consistency, standards, and efficiency in the operation of good building management. Keywords: Mechanical; Electrical; Plumbing; Efficiency; Energy
PEMANFAATAN LIMBAH SABUT KELAPA MENJADI COCOPEAT SEBAGAI MEDIA TANAM RAMAH LINGKUNGAN DI DESA KORLEKO SELATAN Jurnal Wicara; Yadnya, Made Sutha; Manzis, Haeki; Maharani, Baiq Faridha Aulya; Mayori, Elsya; Lestari, Dwi; Wardhana, Lalu Diandra Surya; Dewi, Nur Ariza Kurnia; Zahara, Risna Putri; Alfathya, Roro Ranti Dea; Saputri, Miranti Wulan; Putri, Nanda Febriyani; Nursuha, Nabilah Putri
Jurnal Wicara Vol 3 No 4 (2025): Jurnal Wicara Desa
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/z4th7j76

Abstract

Kelapa merupakan komoditas unggulan yang melimpah di Desa Korleko Selatan, sehingga memiliki potensi lokal yang penting untuk dikembangkan. Salah satu limbah yang dihasilkan adalah sabut kelapa, yang berpotensi diolah menjadi cocopeat sebagai media tanam ramah lingkungan. Pemilihan cocopeat didasarkan pada karakteristiknya yang mampu menyerap dan menyimpan air dengan baik, meningkatkan aerasi tanah, serta mendukung pertumbuhan akar tanaman. Melalui kegiatan Kuliah Kerja Nyata (KKN) PMD Universitas Mataram, dilakukan pelatihan dan pendampingan bagi masyarakat dalam pengolahan sabut kelapa menjadi media tanam. Kegiatan ini bertujuan untuk memaksimalkan pemanfaatan limbah sabut kelapa agar memiliki nilai tambah, sekaligus memperkenalkan alternatif media tanam yang dapat digunakan untuk pertanian skala rumah tangga maupun usaha hortikultura. Hasil kegiatan menunjukkan bahwa cocopeat efektif meningkatkan retensi air dan sirkulasi udara dalam tanah, sehingga dapat mendukung pertumbuhan tanaman lebih optimal. Selain manfaat ekologis berupa pengurangan limbah sabut kelapa, pemanfaatan cocopeat juga memberikan nilai edukatif bagi masyarakat serta membuka peluang peningkatan ekonomi melalui pemasaran produk media tanam tersebut. Dengan demikian, pemanfaatan sabut kelapa menjadi cocopeat memberikan kontribusi nyata bagi pemberdayaan masyarakat Desa Korleko Selatan.
Analisa Penyimpangan Sinyal GPS Pada Share Location di Urban Area Yadnya, Made Sutha; Zahrina, Putri; Sudarta, I Wayan
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 11 No. 4 (2025): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v11i4.955

Abstract

This research arose because there was an error or shift from the share location on the smartphone. As for evaluating the accuracy of share location with several variations of smartphones that are usually used by goods delivery services using WhatsApp and Telegram applications using four android smartphones by comparing RMSE and CDF values. The results show that the average RMSE WhatsApp error is 11-21 meters, while Telegram is 16-37 meters. WhatsApp's CDF on S4 shows the lowest error distribution around a low of less than 20 meters, while Telegram's PDF shows an error distribution of around 30 meters. In the CDF analysis, WhatsApp showed a faster distribution reaching a value of 1, indicating higher accuracy, while Telegram had a slower and wider distribution, indicating lower instability and accuracy.
Analisis Pola Spatio-Temporal Gempa Bumi di Zona Busur Belakang Utara Lombok–Flores Menggunakan Agglomerative Clustering Ramadhani, Cipta; Yadnya, Made Sutha; Paniran, Paniran; Kanata, Bulkis; Zubaidah, Teti
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 11 No. 4 (2025): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v11i4.957

Abstract

This study aims to identify earthquake clustering patterns in the Northern Lombok–Flores Back-Arc Zone using the Agglomerative Clustering method. Seismic data were obtained from the United States Geological Survey (USGS) covering the period 1970–2021, using latitude, longitude, depth, and magnitude as clustering variables. A sliding window approach was applied to capture the temporal evolution of seismic activity. The results indicate the formation of three stable clusters that consistently represent different earthquake depth levels across all analyzed time windows. Although fluctuations in the occurrence of large-magnitude earthquakes were observed in several windows, these variations did not significantly affect the clustering structure. This study demonstrates that the combination of Agglomerative Clustering and a sliding window approach is effective for identifying depth-based earthquake clustering patterns and describing their temporal dynamics
Rainfall Prediction Using Gate Recurrent Unit (Gru) for The Mataram City Area Galih Dimas Aryoso; Bulkis Kanata; Made Sutha Yadnya
Jurnal Penelitian Pendidikan IPA Vol 11 No 2 (2025): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i2.9874

Abstract

Rainfall prediction is crucial for urban planning, agriculture, and disaster mitigation. This study predicts rainfall intensity in Mataram City using the Gated Recurrent Unit (GRU), a variant of Recurrent Neural Networks (RNN) optimized for sequential data. The dataset consists of hourly rainfall data from NASA's MERRA Power (2010–2021). Data preprocessing includes normalization, feature engineering, and dataset splitting. The GRU model architecture comprises input, GRU, and dense layers. Model performance is evaluated using Root Mean Squared Error (RMSE), yielding 67, 112, 69, and 109 for Ampenan, Cakranegara, Majeluk, and Selaparang, respectively. Results show that the GRU model captures rainfall trends but has limitations in predicting extreme values. This study demonstrates GRU’s potential for improving rainfall forecasting while highlighting the need for further optimization to enhance accuracy.
Co-Authors A. Sjamsjiar Rachman Abdul Amar Gifari Abdul Nasir, Abdul Abdulah Zainuddin Abdulah Zainuddin Abdulah Zainuddin Abdulah Zainuddin Abdullah Zaenuddin Abdullah Zainuddin Abdullah Zainuddin Abdullah Zainuddin Abdullah Zainuddin Abdullah Zainuddin Ade Zaini Hasnan P, M Agung Budi Muljono Agung Budi Muljono Ahmad Tahmid Akbar, Lalu Muhamad Roviq Akbar, Muhammad Fajrin Alfandi, Ahmad Nova Alfathya, Roro Ranti Dea Amalia , Serlyana Amalia, Annisa Rizki Amalia3, Annisa Rizki Amilia , Serlyana Ananda, M. Dimas Apriandi, M. Irawan Ardi , Salman Ari Wijayanti Ariana Wulandari, , Haspita Ariana Wulandari, Haspita Ariessaputra, Suthami Arjana, Ida Bagus Made Atsani, Affan Azminda, Muhammad Azwar Fidar Baiq Faridha Aulya Maharani Baiq Nurjanah Basri Rahman Budiman, Djulfikry Bulkis Kanata Bulkis Kanata Bulkis Kanata Bulkis Kanata Bulkis Kanata Bulkis Kanata Bulkis Kanata Bulkis Kanata Bulkis Kanata Bulkis Kanata Chandra, Wahyu Chandra Parhadi Cipta Rahmadani Cipta Ramadhani Derajat, Dirga Dama Desi Widianty Devi, Radhe Vrndavanesvari Dewi, Nur Ariza Kurnia Dianda, Nandita Dimas Ananda, M. Djul Fikry Budiman, Djul Fikry Djulfikri Budiman Dwi Lestari Dwi Lestari Dwi Ratnasari Dwi Ratnasari Dwi Ratnasari Dwi Ratnasari Elsya Mayori Elya Kadariya Enrico Ananta Pratama Fajrina , Baiq Zatil Hidayah Fiandra, Naufal Nanda Fina Meliana Firman Zandra Gholib Fitratunnisa, Nur Galih Dimas Aryoso Ginarsa I Made Hadi A, Muh. Saihul Haekal , Muhammad Haeki Manzis Hajatsyah, Lani Sapitri Hani’ah Mahmudah Harjian, Muhammad Rivaldi Hasnan P, M. Ade Zaini Hayat , Nahriyatul Helmy Amalia Ariesta Hidayati , Laely Holis, M. Sopian I A Sri Adnyani I K Wirajati I Kayan Kariyadi I Ketut Perdana Putra I Ketut Wiryajati I Made Agus Yudhiarsana I Made Ari Nrartha I Made Ari Nrartha I Made Ari Nrartha I Made Ari Nratha I Made Ginarsa I Made Ginarsa I Nyoman Wahyu Satiawan I Nyoman Wahyu Satiawan I Putu Gede Wirarama Wedashwara I Wayan Agus Arimbawa, I Wayan Agus I WAYAN SUDARTA I Wayan Sudiarta I Wayan Sudiarta I Wayan Sumertha I Wayan Wirata I. G. P. Wedashwara Wedarama Ida Ayu Sri Adnyani Ida Bagus Fery Citarsa Ida Bagus Fery Citarsa Imam Hidayatullah Irawan , Aditia Irawan Apriandi , M. Irwan Irwan Jurnal Wicara Kenya Damayanti Priyatna Kurnia Utami Rinjani Putri Kurniadianto, Dwi Kurniawan, Aldhi Putra Ade L.A.S. Irfan Akbar Lalu Alfian Wahyudi Lalu Diandra Surya Wardhana Lalu Muhamad Irfan Larasati, Alfiyyah Reghin Lokia Lusiana M. Samdya Aripansy Made Budi Suksmadana , I Maharani, Baiq Faridha Aulya Mahendra, Yusril Majdi, Shafwatul Manzis, Haeki Maryani, Indah Maulana Ridho Alfarizqa Mayori, Elsya Miftahul Jannah Miranti Wulan Saputri Misbahhuddin, Misbahhuddin Misbahhudin Misbahhudin Misbahuddin, Misbahuddin Muhamad Syamsu Iqbal Muhamad Tohri Mulijono, Agung Budi Muljono, Agung B Muvianto, Cahyo Mustiko Okta Nababan, Sabar Nabilah Putri Nursuha Nanda Febriyani Putri Natasya Dewi Astuti Natsir, Abdul Neli Apriani Ni Komang Wiasti Ni Luh Sinar Ayu Ratna Dewi Ni Putu Listiawati Ni Putu Sasmika Dewi Ni Putu Sudewi Budhawati Noviana , Ena Noviana, Ena Nrartha I Made Nrartha I Made Ari Nujulia, Nilti Haeratul Nujulia, Nilti Haeratun Nur Ariza Kurnia Dewi Nurhasanah Nurrahman, Winaldi Nursuha, Nabilah Putri Nurul Ainun Nyoman Putra Sastra Octaviana, Rina Prihaty Paniran Paniran Paniran Paniran Parhadi, Wahyu Chandra Patni R, Gusti Ayu Santi Pranama, Ida Bagus Beni Surya Adi Priadana , Wahyu Putra, Doddy Setya Darsanti Putra, I Ketut Perdana Putri, Nanda Febriyani Rahayuningsih, Ramdani Ramdani, M. Restu Nopiandi Irawan Riksa , Anggara Rina Prihaty Octaviana Risna Putri Zahara Rizki Amalia , Annisa Roro Ranti Dea Alfathya Rosmaliati Rosmaliati , Rosmaliati Rosmaliati, Rosmaliati Salsabila Mardita, Sania Sania Salsabila Mardita Saputri, Miranti Wulan Saridewi, Desak Putu Sasongko, Sudi M Al Sasongko, Sudi Maryanto Al satiawan, nyoman wahyu Seniari, Ni Made Shahab, Seha Siti Zaenab SMA Sasongko solihati, solihati Sopian Holis , M. Suci Raditya Yadnya Sudarmaa, I Made Sudi Mariyanto Al Sasongko Sudi Mariyanto Al Sasongko Sudi Mariyato Al Sasongko Sudi Maryanto Al Sasongko Sueca, I Nyoman Sugiarta , Anya Putri Sugiartini , Ni Nengah Cista Nanda Suharyadi, Farhan Ahmad Sukmawati Sukmawati Suksmadana, I Made Budi Sultan . Sultan Sultan Sultan Sultan Sultan Sultan Sultan Sultan Sultan Sultan Sultan Sultan Sultan Sultan Sulthon Zamroni Supiana, Wina Supriono Supriono Supriyatna Supriyatna Tatang Mulyana Teti Zubaidah Teti Zubaidah Teti Zubaidah Teti Zubaidah Teti Zubaidah Teti Zubaidah Tohri, M. Utami , Ida Ayu Tresna Dewi Vrndavanesvari Devi , Radhe Wardhana, Lalu Diandra Surya Wedarama, I.G.P. Wedashwara Wedashwara, Wirarama Widianty , Desi Wulandari, Haspita Ariana Wulandari, Zurrizka Putri yadnya, suci raditya Yudiva Damar Basmalla Zahara, Risna Putri Zahrina, Putri Zainuddin, Abdullah Zulfikarullah Zulfikarullah Zulhidayati, Masni Zulvia, Ridho