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Design Of Real-Time Seismic Amplitude Measurement (RSAM) System Using Geophone as the Detection of Seismic Vibration salamah, umi; I.P, Apik Rusdiarna; Hidayah, Qonitatul; Rizki, Aji Nur
Jurnal Migasian Vol. 3 No. 2 (2019): Jurnal Migasian
Publisher : LPPM Akademi Minyak dan Gas Balongan Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36601/jurnal-migasian.v3i2.83

Indonesia is one of the most volcanic countries in the world. The series of volcanoes extends from the islands of Sumatra, Java, Bali and Nusa Tenggara. From the islands in the Banda Sea to the northern part of Sulawesi Island is the longest volcanic region in the world. Indonesia has 129 active volcanoes, 70 of which are threatened and 500 are inactive. Since 1800, at least 600 recorded eruptions by 70 volcanoes in Indonesia. Therefore, Indonesia can be regarded as a country prone to disaster, especially the threat of disasters volcano. Observation, monitoring, recording, dissemination of information and warning signs of volcanic activity to be one focus in volcano disaster mitigation.One of the instrumentation used to monitor the volcanic activity of Mount Merapi is Real-time Seismic Amplitude Measurement (RSAM). RSAM is a system that provides a continuous measurement of the absolute average seismic amplitude of the number of seismic stations. RSAM occupies a strategic role in monitoring the seismic activity of volcano especially in times of crisis before the eruption. In this research, the RSAM system design using a geophone sensor to detect the seismic vibration. The frequency of the tests given in this study included 10 Hz, 30 Hz, and 50 Hz. The system that has been designed to build can detect frequencies well as evidenced by the greater the frequency of the test given the more the graph output of the output is produced. In addition, the magnitude produced is also getting bigger. At a frequency of 10 Hz, the resulting magnitude is 0.997, at 30 Hz the resulting magnitude is 1.559 while at 50 Hz the magnitude generated is 1.962 The RSAM system designed to build produces an amplitude that has a linear relationship to the magnitude of the vibration source provided.

Design Of Real-Time Seismic Amplitude Measurement (RSAM) System Using Geophone as the Detection of Seismic Vibration umi salamah; Apik Rusdiarna I.P; Qonitatul Hidayah; Aji Nur Rizki
Jurnal Migasian Vol 3 No 2 (2019): Jurnal Migasian
Publisher : LPPM Akademi Minyak dan Gas Balongan Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36601/jurnal-migasian.v3i2.83

Indonesia is one of the most volcanic countries in the world. The series of volcanoes extends from the islands of Sumatra, Java, Bali and Nusa Tenggara. From the islands in the Banda Sea to the northern part of Sulawesi Island is the longest volcanic region in the world. Indonesia has 129 active volcanoes, 70 of which are threatened and 500 are inactive. Since 1800, at least 600 recorded eruptions by 70 volcanoes in Indonesia. Therefore, Indonesia can be regarded as a country prone to disaster, especially the threat of disasters volcano. Observation, monitoring, recording, dissemination of information and warning signs of volcanic activity to be one focus in volcano disaster mitigation.One of the instrumentation used to monitor the volcanic activity of Mount Merapi is Real-time Seismic Amplitude Measurement (RSAM). RSAM is a system that provides a continuous measurement of the absolute average seismic amplitude of the number of seismic stations. RSAM occupies a strategic role in monitoring the seismic activity of volcano especially in times of crisis before the eruption. In this research, the RSAM system design using a geophone sensor to detect the seismic vibration. The frequency of the tests given in this study included 10 Hz, 30 Hz, and 50 Hz. The system that has been designed to build can detect frequencies well as evidenced by the greater the frequency of the test given the more the graph output of the output is produced. In addition, the magnitude produced is also getting bigger. At a frequency of 10 Hz, the resulting magnitude is 0.997, at 30 Hz the resulting magnitude is 1.559 while at 50 Hz the magnitude generated is 1.962 The RSAM system designed to build produces an amplitude that has a linear relationship to the magnitude of the vibration source provided.

Solar Electricity Generating Technology as a Power Supply Automatication of Deep Well Water Pumps in Gunungkidul, Indonesia Umi Salamah; Qonitatul Hidayah; Sri Handayaningsih; Damar Yoga Kusuma; Apik Rusdiarna Indra Praja
Indonesian Journal of Innovation and Applied Sciences (IJIAS) Vol. 2 No. 2 (2022): June-September
Publisher : CV. Literasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47540/ijias.v2i2.437

Water is a vital human need that must be met for human survival and carrying out daily activities. However, the condition of natural resources in each region is different, not all regions have sufficient water availability. One of them is in Serut, Gunungkidul which is an area with hilly geography. During the dry season, clean water sources in Serut District become scarce and very limited. Therefore, the Serut District Government cooperates with the Community Self-Help Group (KKM Tirta Abadi Jaya) to drill deep wells to distribute water to residents. However, along the way, the operational costs are very large, especially for water pump electric pulses. In addition, the geographical condition of Serut which is hilly and has many trees causes frequent power outages, especially in extreme weather. This affects the resistance of the water pump because it is often on and off. The power outage can also stop the distribution of water to residents. This community service provides a solution to these problems, namely the installation of solar electricity generation. With this solar electricity generation, it can reduce the operational costs of electric pulses. In addition, using solar electricity generation can increase the durability of the tool because there is no on-off. Residents also still have their water needs met even though there is a power outage because the electricity needs for water pumps are supplied from solar electricity generation.

Hubungan Antara Masa Kerja Dan Sikap Kerja Dengan Keluhan Low Back Pain Pada Buruh Gendong Pasar Beringharjo Kota Yogyakarta Subhan Zul Ardi; Lita Indriastika; Qonitatul Hidayah
JURNAL DUNIA KESMAS Vol 10, No 2 (2021): Volume 10 Nomor 2
Publisher : Fakultas Kesehatan Masyarakat Universitas Malahayati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33024/jdk.v10i2.3549

Latar Belakang:. Low back pain termasuk salah satu gangguan musculuskeletal disorder’s yang sering terjadi dan menyebabkan penurunan produktivitas kerja dan disabilitas. Beberapa faktor yang dapat menyebabkan low back pain antara lain usia, jenis kelamin, indeks massa tubuh, masa kerja, sikap kerja dan lingkungan kerja Sikap kerja yang tidak alamiah dan melebihi kemampuan pekerjanya akan menyebabkan risiko low back pain. Penelitian ini bertujuan untuk mengetahui hubungan antara masa kerja dan sikap kerja dengan keluhan low back pain pada buruh gendong Pasar Beringharjo Kota Yogyakarta.Metode: Penelitian ini bersifat analitik observasional dengan menggunakan rancangan penelitian cross sectional study, subyek penelitian yaitu 146 sampel dengan teknik simple random sampling. Instrumen penelitian menggunakan kuesioner yang di adopsi dari Halibona, lembar Nordic Body Map (NBM) dan lembar REBA. Analisis data menggunakan uji Chi-square dan fisher exact sebagai uji alternatifHasil: Tidak ada hubungan masa kerja dengan p value (p=0,687) dan nilai (RP=1,022;CI=0,830-1,258) dan terdapat hubungan sikap kerja dengan p value (p=0,007) nilai (RP=1,196;CI=1,056-1,354) dengan keluhan low back pain pada buruh gendong di Pasar Beringharjo Kota Yogyakarta.Kesimpulan: Tidak ada hubungan yang signifikan antara masa kerja dan terdapat hubungan sikap kerja dengan keluhan low back pain (LBP) pada buruh gendong di Pasar Beringharjo Kota Yogyakarta.

Simulation of Land Movement Detection System Using Accelerometer Sensors and Fiber Optic Qonitatul Hidayah; Umi Salamah; Yuda Wiges Pratama
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol. 12 No. 1 (2022)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v12n1.p24-33

Indonesia’s geographical conditions are one of the causes of land movement. This land movement can occur due to the movement of rock masses, soil, or debris material making up the slopes. The stability of a slope is influenced by several parameters such as material, soil strength, slope angle, climate, vegetation, and time. In Indonesia, land movement disasters are placed the third rank of natural disasters that occurred throughout 2021. Thus, the development of a land movement detection system is very important for monitoring land movement disasters. In this research, a land movement detection device was developed using the ADXL 335 accelerometer sensor and fiber optic. For data acquisition, Arduino Uno, LEDs, and photodetectors were used. Arduino Uno was used to convert analog signals to digital. In addition, LEDs were used as light sources, and photodetectors were used as a receiver. Changes in the output voltage due to macrobending loss are obtained when the curvature changes due to the pendulum system. The results of the study show that the average acceleration values on the x, y, and z axes of the accelerometer sensor are 0.118 g, 0.925 g, and -2.494 g. The maximum land displacement movement that can be represented by fiber optic is 4 cm. Further, the combination use of accelerometer sensors and fiber optic can show the magnitude of the force that causes displacement, the direction of land displacement, and the magnitude of the land displacement that occurs.

Design Of Real-Time Seismic Amplitude Measurement (RSAM) System Using Geophone as the Detection of Seismic Vibration umi salamah; Apik Rusdiarna I.P; Qonitatul Hidayah; Aji Nur Rizki
Jurnal Migasian Vol 3 No 2 (2019): Jurnal Migasian
Publisher : LPPM Institut Teknologi Petroleum Balongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36601/jurnal-migasian.v3i2.83

Indonesia merupakan salah satu negara dengan gunungapi terbanyak di dunia. Rangkaian gunungapi membentang dari Pulau Sumatera, Jawa, Bali dan Nusa Tenggara. Dari kepulauan di Laut Bdana sampai bagian utara Pulau Sulawesi merupakan daerah gunungapi terpanjang di dunia. Indonesia memiliki 129 gunungapi aktif, 70 buah diantaranya berancaman dan 500 buah tidak aktif. Sejak tahun 1800, paling tidak telag tercatat 600 kali letusan oleh 70 gunungapi di Indonesia. Karena itu, Indonesia dapat dikatakan sebagai negara yang rawan bencana, terutama ancaman bencana gunung berapi. Pengamatan, pemantauan, pencatatan, penyebaran informasi dan peringatan tanda bahaya terhadap aktivitas gunungapi menjadi salah satu fokus dalam penanggulangan bencana gunungapi. Untuk mendukung hal tersebut diperlukan instrumentasi deteksi aktivitas vulkanik gunungapi. Salah satu instrumentasi yang digunakan untuk memantau aktivitas gunung berapi Gunung Merapi adalah Real-time Seismic Amplitude Measurement (RSAM). RSAM adalah sistem yang menyediakan pengukuran kontinu dari amplitudo seismik rata-rata absolut dari jumlah stasiun seismik. RSAM menempati peran strategis dalam memantau aktivitas seismik gunung berapi terutama pada saat krisis sebelum letusan. Dalam penelitian ini, perancangan sistem RSAM menggunakan sensor geophone untuk mendeteksi getaran seismik. Frekuensi tes yang diberikan dalam penelitian ini termasuk 10 Hz, 30 Hz, dan 50 Hz. Sistem yang telah dirancang bangun dapat mendeteksi frekuensi dengan baik sebagaimana dibuktikan bahwa semakin besar frekuensi uji maka semakin banyak output grafik yang dihasilkan. Selain itu, besaran yang dihasilkan juga semakin besar. Pada frekuensi 10 Hz, magnitudo yang dihasilkan adalah 0,997, pada 30 Hz magnitudo yang dihasilkan 1,559 sedangkan pada 50 Hz magnitudo yang dihasilkan adalah 1,962. Sistem RSAM yang dirancang bangun menghasilkan amplitudo yang memiliki hubungan linier dengan besarnya getaran sumber disediakan..

Factors Related of Musculoskeletal Disorders (MSDS) Complain in Online Study at Public Health University X Ardi, Subhan Zul; Hidayah, Qonitatul
Jurnal Ergonomi Indonesia (The Indonesian Journal of Ergonomic) Vol 8 No 2 (2022): Volume 8 No 2 Tahun 2022
Publisher : Program Studi Magister Ergonomi Fisiologi Kerja Pascasarjana Universitas Udayana Denpasar Bekerjasama dengan Perhimpunan Ergonomi Indonesia (PEI)

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

Ergonomics problems are related to the presence of discomfort when doing work, so that the impact on complaints of a disease is no exception felt by students during lectures using the online method. In this study, there were problems, including 7 respondents who stated that their back and neck felt pain, 8 people felt watery, and pungent in the eyes. Different sleep times of 7 respondents. Different lecture times between classes of 7 respondents. The study goal was to analyze the element related to complaints of musculoskeletal disorders in online study for students’ class 2020 at the Faculty of Public Health.: Methods of this study was a quantitative descriptive, with a population of 238 students from the class of 2020, and a research sample of 71 students. The sampling technique used incidental. The instruments tool used noordic body map, and REBA sheet. The data analysis used Chi-square test. There was relationship between gender and the duration study and there was no correlation between sleep time and musculoskeletal complaints in students’ class 2020 at the Faculty of Public Health University X with p = 0.41, 0.39 and 0.886. There is a relationship between gender and duration study and there is no correlation between sleep time and musculoskeletal complaints in online study in students’ class 2020 of the Faculty of Public Health, University X.

Fabrication of pbs films for air mass filter of solar simulator Hilmi, Isom; Kusuma, Damar Yoga; Soetedjo, Hariyadi; Hidayah, Qonitatul; Salamah, Umi
Jurnal Teknosains Vol 13, No 2 (2024): June
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/teknosains.88846

The production of solar panels is continuously increasing due to increasing demands at industrial and residential levels. This also leads to an increasing demand for solar simulator testing tools. A solar simulator is a tool to assess a solar panel's performance in lab and industry scales. One of the main components of the solar simulator is the Air Mass Filter (AMF). The primary function of AMF is to remove unwanted wave bands from the solar simulator light source (e.g., Xe arc lamp) so that the filtered spectrum is commensurate to that of solar irradiation. An AMF can be produced by fabricating a thin material layer on a transparent substrate like glass. The film would absorb certain wave bands in different ways. This paper reports the fabrication of the chalcogenide PbS thin films for applying AMF. The thermal evaporation technique is used for the film fabrication. PbS is known for its versatility for applications in different optical devices due to its tailorable optical properties. Different amounts (in grams) of PbS source powders are used to deposit the PbS thin films. The optical properties of the films are then examined using UV-Vis spectroscopy. The distributions of the transmittance intensity of the Xe-arc-lamp light with and without the use of the films as an optical filter are then examined using a solar simulator. From the experiments, the film deposited using a 0.012 g PbS powder source is regarded as the optimum one regarding the transmittance intensity distribution.

Transfer Teknologi Reverse Osmosis dan Penguatan Kapasitas Operasional Alat Filtrasi-Sterilisasi Air untuk Produksi AMDK di Kalurahan Serut, Gunungkidul : Penelitian Kusuma, Damar Yoga; Hidayah, Qonitatul; Ardi, Subhan Zul; Suwartiningsih, Nurul; Rahmadhia, Safinta Nurindra
Jurnal Pengabdian Masyarakat dan Riset Pendidikan Vol. 4 No. 1 (2025): Jurnal Pengabdian Masyarakat dan Riset Pendidikan Volume 4 Nomor 1 (Juli 2025 -
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jerkin.v4i1.2378

Ketersediaan air bersih layak konsumsi di wilayah rawan kekeringan masih menjadi tantangan, khususnya di daerah pedesaan yang belum terjangkau sistem distribusi air perpipaan. Kalurahan Serut, Kapanewon Gedangsari, Kabupaten Gunungkidul, merupakan salah satu wilayah dengan potensi air tanah yang melimpah, namun belum memenuhi standar kualitas air minum akibat kandungan logam berat, total dissolved solids (TDS), serta cemaran mikrobiologis seperti Escherichia coli dan Coliform. Kegiatan pengabdian kepada masyarakat ini bertujuan untuk memperkenalkan teknologi Reverse Osmosis (RO) sebagai solusi pengolahan air tanah, serta memberikan pelatihan teknis kepada masyarakat dalam pengoperasian dan pemeliharaan alat filtrasi-sterilisasi. Metode kegiatan meliputi survei awal kualitas air dan kebutuhan masyarakat, instalasi sistem RO yang terdiri dari pre-treatment (filter sedimen dan karbon), membran RO, dan post-treatment menggunakan sinar UV, serta pelatihan teknis kepada pengelola air minum desa yang tergabung dalam BUMKal Karya Manunggal Jaya. Hasil evaluasi menunjukkan adanya peningkatan signifikan dalam pemahaman peserta pelatihan, dari indeks rata-rata 2768 ± 966 menjadi 6384 ± 933 setelah sesi penyuluhan dan praktik lapangan. Implementasi teknologi RO terbukti efektif dan adaptif terhadap kondisi wilayah serta mendukung pemenuhan standar mutu air minum. Selain meningkatkan akses air bersih, kegiatan ini berpotensi mendorong pengembangan unit produksi Air Minum Dalam Kemasan (AMDK) skala mikro berbasis potensi lokal. Penerapan teknologi RO di wilayah ini sejalan dengan pencapaian Tujuan Pembangunan Berkelanjutan (SDGs) poin 6 tentang akses terhadap air bersih dan sanitasi yang layak.

CO2 Detection System in Mixed Gas using MQ-135 Sensor Salamah, Umi; Hidayah, Qonitatul; Kusuma, Damar Yoga
Newton-Maxwell Journal of Physics Vol. 2 No. 2: Oktober 2021
Publisher : UNIB Press

The increase in CO2 gas occurred very significantly due to the use of fossil fuels, industry, forest fires, volcanic eruptions and natural gas resulting in air pollution. The dangers of CO? gas for humans can cause headaches, sweating, blurred vision, tremors, and loss of consciousness after exposure for five to ten minutes. CO2 is a poisonous gas which is physically colorless and odorless. This characteristic causes many humans to be unaware of the existence of this gas, so that it is exposed and endangers health. Therefore we need a CO2 gas detection system. The difficulty that occurs in the detection of CO2 gas is when the gas is mixed with other gases that have similar material properties. In this research, a CO2 gas detection system is designed to detect the gas when it mixes with other gases using the MQ-135 sensor. The system that has been designed and built is then compared with a standard tool, namely the xm-7000 dragger. The test data analyzed using linear regression showed the results in accordance with 2the value of R = 0.9896 with the conversion equation y = 0.0389x-76.086. With these results provide new opportunities in testing CO2 on gas mixtures that are easier and cheaper.

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