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All Journal Jurnal Pemikiran dan Pengembangan Sekolah Dasar (JP2SD) Journal of Islamic Nursing Jurnal Nasional Aplikasi Mekatronika, Otomasi dan Robot Industri (AMORI) JURNAL ABDIKARYASAKTI Sewagati Intelektual : Jurnal Penelitian Dosen Akuntansi Journal of Manufacturing in Industrial Engineering & Technology EKOBIS ABDIMAS : Jurnal Pengabdian Masyarakat International Journal of Economics, Business and Innovation Research Rekayasa Sistem Energi dan Manufaktur Jurnal Online Skripsi Manajemen Rekayasa Konstruksi (JOS-MRK)
Suhariyanto
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Arts Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Nursing Public Health Social Sciences Transportation Other

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Analisis Throttle Position Sensor (TPS) Standart dan Racing dengan Dua Variasi Bahan Bakar terhadap Kinerja Vario 125 Batutah, Moh. Arif; Suhariyanto; Syafiuddin
Journal of Manufacturing in Industrial Engineering & Technology Vol 3 No 2 (2024): Journal of Manufacturing in Industrial Engineering & Technology
Publisher : Universitas Muhammadiyah Surabaya Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30651/mine-tech.v3i2.23776

Abstract

Salah satu cara untuk meningkatkan performa motor yaitu mengganti TPS standart dengan racing berbahan bakar Pertalite dan Shell V-Power. Penelitian ini bertujuan untuk mengamati pengaruhnya terhadap torsi, daya, BEMP, FC, SFC, dan efisiensi thermal pada engine Vario 125. Data dikumpulkan melalui dua pengujian pertama dengan bahan bakar Pertalite menggunakan sensor TPS standar dan racing, dan kedua dengan bahan bakar Shell V-Power menggunakan alat dynotest, tachometer, dan buret. Hasil penelitian menunjukkan bahwa penggunaan sensor TPS standartdan racing dengan bahan bakar Pertalite dan Shell V-Power memiliki pengaruh nyata terhadap performa mesin. Torsi maksimum dicapai pada putaran 3000 RPM, dengan sensor TPS racing berbahan bakar Pertalite sebesar 19,15 Nm. Daya maksimum didapatkan dari penggunaan sensor TPS standart berbahan bakar Shell V-Power yaitu 9,5 HP pada putaran 8000 RPM. Tekanan efektif rata-rata maksimum didapatkan pada putaran 3000rpm yaitu 19,440 kgf/cm2. Nilai FC dan SFC paling rendah tercapai saat menggunakan sensor TPS standart dengan bahan bakar Shell V-Power, dengan nilai masing-masing 0,18 kg/jam dan 0,026 kg/HP.jam pada putaran 2000 RPM. Untuk nilai efisiensi thermal maksimumnya sebesar 53,42% terdapat pada putaran 3000 RPM.
Analysis and selection of skf bt2-8131 a roller bearing lubricant for the vertical roller mill at pt. solusi bangun indonesia tuban factory Suhariyanto; Rusdiyana, Liza; Sampurno, Bambang; Hakim, M Lukman; Abimanyu, Abiyyu Abyan
Jurnal Nasional Aplikasi Mekatronika, Otomasi dan Robot Industri (AMORI) Vol 4 No 2 (2025): December
Publisher : Faculty of Vocational Studies - Research Center, DRPM ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j27213560.v4i2.9361

Abstract

In the industrial world, friction between machine elements such as bearings can affect the performance and service life of components, making lubrication systems based on tribology principles very important. This study analyzes the selection of lubricants for SKF BT2-8131 A roller bearings in a Vertical Roller Mill owned by PT. Solusi Bangun Indonesia, Tuban Factory, with the aim of determining a better lubricant than before and identifying the type of lubricant film formed. The research process involved collecting machine operational data and lubricant specifications, as well as calculating the kappa value and Streibeck curve to determine the type of lubricant layer, such as boundary, mixed, or full film lubrication. The results showed that Pertamina Masri RG 460 lubricant with a kappa value of 1.29 was selected because it had adequate technical performance and was more economical, although Mobil SHC 600 460 lubricant with a kappa value of 1.73 was also recommended if technical performance was the main priority. The results were validated by calculating the predicted bearing life to ensure optimal efficiency and performance.
Redesign of the coal gate on a 20 ton/hour chain grate boiler at pt sopanusa Suhariyanto; Rusdiyana, Liza; Dika Andini Suryandari; Dimitra Meidina Kusnadi; Hafizh Naufal Atho’ulloh
Jurnal Nasional Aplikasi Mekatronika, Otomasi dan Robot Industri (AMORI) Vol 4 No 2 (2025): December
Publisher : Faculty of Vocational Studies - Research Center, DRPM ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j27213560.v4i2.9362

Abstract

A chain grate boiler is a type of boiler with a moving grate system to transport solid fuel through the furnace. The coal gate regulates the distribution flow of coal from the hopper to the furnace. In the 20 tons/hour capacity chain grate boiler at PT Sopanusa, the existing coal gate experienced mechanical failure due to damage to components in the roller chain, shaft, and bearings, so that it could not operate as a coal distribution regulator. To overcome this problem, it is necessary to redesign the coal gate on the 20 tons/hour capacity boiler chain grate hopper at PT Sopanusa. The main components, such as the chain, sprocket, worm gear, shaft, bearing, and pin on the coal gate, need to be redesigned to avoid mechanical failure of the coal gate. After redesigning the main components of the coal gate, a coal gate design that is compatible with the boiler chain grate construction will be obtained. The results of the coal gate redesign are as follows: a lifting chain with Chain Grade 80 type, 4 mm diameter, and a sprocket diameter of 320.92 mm; a worm gear with a ratio of 30:1 using hardened steel for the worm and phosphor bronze for the gear; a shaft with S45C material, 60 mm diameter; bearings using single row deep groove ball bearings, unit number ASB Bearing UCP 212; and pins made of SAE 1045 material with dimensions of 60x20x12 mm to support the manual coal gate mechanism on the 20 tons/hour capacity boiler chain grate at PT Sopanusa.
Replanning of BC-7 belt conveyor in coal handling system with capacity of 150 tph at Lombok ftp-2 (2x50mw) power plant Suhariyanto; Liza Rusdiyana; Mahirul Mursid; Budi Luwar Sanyoto; Berlian Putri Fahmiliana
Jurnal Nasional Aplikasi Mekatronika, Otomasi dan Robot Industri (AMORI) Vol 4 No 2 (2025): December
Publisher : Faculty of Vocational Studies - Research Center, DRPM ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j27213560.v4i2.9363

Abstract

Lombok has high tourism potential that requires a reliable electricity supply, one of which comes from the Lombok FTP-2 2Å~50 MW Power Plant in Sambelia, East Lombok. This power plant uses coal supplied through a Coal Handling system, with Belt Conveyor BC-7 as one of its main components. This study aims to redesign the BC-7 Belt Conveyor with a capacity of 150 TPH through manual calculations of capacity and motor power and using Helix Delta T-6 Conveyor Design software. The study focuses on one conveyor unit, using coal material, and only discusses aspects of capacity and motor power under stable operating conditions. The methods used include literature studies, field observations, and data collection from the Lombok FTP-2 PLTU. The data was then processed for manual calculations and software simulations. The results showed a transport capacity of 165 tons/hour (a 10% increase from the previous capacity). The highest motor power without SF from the software was 8.49 kW (19.75% greater than the manual result). The use of software proved to be more efficient and helpful in planning belt conveyor systems.
Determinants of science and social studies achievement: the interplay of motivation, parental involvement, and digital literacy Suhariyanto; Onik Farida Ni’matullah; Roni Alim Ba'diyah Kusufa
Jurnal Pemikiran dan Pengembangan Sekolah Dasar (JP2SD) Vol. 14 No. 1 (2026): April 2026
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jp2sd.v14i1.42456

Abstract

The learning outcomes in the subjects of Natural and Social Sciences (IPAS) serve as a key indicator reflecting students' understanding of environmental and social phenomena, as well as a foundation for developing critical thinking and problem-solving skills in primary education in Indonesia. This study aims to analyze the influence of learning motivation, parental involvement, and digital literacy on the IPAS learning outcomes of upper-grade students at SD Negeri Tlontoraja 8, Pasean District, Pamekasan Regency. The hypothesis proposed in this study is that all three variables, both simultaneously and partially, have a positive and significant effect on student learning outcomes. This research uses a quantitative approach with an ex post facto design, which aims to test the relationships between variables without experimental manipulation. The sampling technique used is total sampling, involving 65 students as respondents. Data was collected through validated questionnaires and analyzed using multiple linear regression. The results show that learning motivation, parental involvement, and digital literacy simultaneously have a significant effect on IPAS learning outcomes (F = 493.206, p < 0.05, R² = 0.782). Partially, learning motivation (t = 7.886, p < 0.05), parental involvement (t = 4.528, p < 0.05), and digital literacy (t = 7.465, p < 0.05) each have a positive and significant effect. These findings emphasize that enhancing student learning motivation, parental involvement, and strengthening digital literacy are crucial strategies for improving students' conceptual understanding and academic achievement in IPAS learning at the primary school level.
Workload and Psychological Well‑Being Among Nurses Pursuing Higher Education: A Descriptive Quantitative Study Yulis, Rahma; Fitri, Gusni; Noviyanti, Linda Wieke; Suhariyanto
Journal of Islamic Nursing Vol 11 No 1 (2026): Journal of Islamic Nursing
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/join.v11i1.66026

Abstract

Abstract   Nurses undergoing study leave face dual roles responsibilities as healthcare providers in clinical settings and as students pursuing professional advancement. This dual role may lead to increased workload and mental health challenges. The purpose of this study was to describe the workload and mental status of nurses undergoing study leave. A descriptive cross-sectional design was applied. The accessible population comprised 73 nurses enrolled in the Nursing Professional Program, and 57 were selected through purposive sampling. Inclusion criteria were students of the Nursing Professional Program who work as nurses in health facilities and are undergoing study leave, and willing to participate. Data were collected using two standardized instruments: NASA‑TLX to assess workload and DASS‑21 to evaluate depression, anxiety, and stress. Questionnaires were analyzed univariately. The workload was perceived by respondents most dominantly in the very high category (52%), with the dominant factor causing the workload being the Temporal Demand (TD). The most dominant mental status was in the normal category for depression (89%), anxiety (67%), and stress (86%). However, some respondents experienced mild to moderate depression, mild to severe anxiety, and moderate to mild stress. Nurses undergoing study leave experience substantial time pressure in balancing clinical and academic responsibilities, which may increase fatigue and reduce cognitive resources. Despite most respondents remaining in the normal range for depression, anxiety, and stress, the presence of mild to moderate symptoms highlights the need for workload management, early mental‑health monitoring, and coordinated hospital–university policies that recognize and support the dual role of these nurses.   Keywords: Clinical practice, Mental Status, Nurses, Nursing Students, Study Leave, Workload
Co-Authors Abimanyu, Abiyyu Abyan Adiwena, Egan Hargo Affan Mashuri Agung Samudra Agus Sugiarto Amalia Andrean Eko Haryoko Angin, Eunicke Adiel Aria Perangin Anisa, Rochmatul Arif Ramadhan Candrasa Aristha Purwanthari sawitri Armin Naibaho Arni Utamaningsih Bagus Tirto Aji Bambang Sampurno, Bambang Berlian Putri Fahmiliana Budi Luwar Sanyoto Catrya Ghazy Afif Tsany Dewi Fatmawati Didik Subijantoro Dika Andini Suryandari Dimitra Meidina Kusnadi Dina Asmiati Dzulfikar, Hidayah Mimtsa Alfaini Edy Sulistiyawan, Edy Fachrudy Asj'ari Fadjar Purnomo Faisal Rizqi Hanggara Gerard Aponno Gusmiarni Hafizh Naufal Atho’ulloh Hakim, M Lukman Ikhram Syalsabila, Hadi Imam Hidayat Indra Syahrul Ramadhan Joko Setiono Khoirina Putri Izza Rohmah Laksono, Agus Edy Laskono, Nuswar Barruli Liza Rusdiyana Liza Rusdiyana M. Noris Al Pratama Mahirul Mursid Mila Esti Permata Moh Arif Batutah Mohammad Dzikril Akbar Muttaqin, Mohammad Zainal Nawir Rasidi noviyanti, linda wieke Nursabita, Ayusha Nurul Huda Onik Farida Ni’matullah P, Ferdi Razaq Pamekas, Paksi Pamungkas, Hafizhan Faris Petty Aprilia Sari Pramudya, Wisnu Agung Prayoga, Devid Budi Purwanti Putri Issanti Radhia Jatu Noviarsita Sakti Rafi, Muhammad Nur Rahardian, Willy Evan Rahma Maulidia Arzanti Rahma Yulis Restu Putri Wardani Roni Alim Ba'diyah Kusufa Saadah, Runiatus Salsabila Rahmi Santoso, Muhammad Hafizh Irsan Saptiyono, Ami Sitti Safiatus Riskijah Solikin Solikin Subiyanto, Hari Sukiranto, Sukiranto Sumardi Susapto Suselo Utoyo Susilo, Wiji Syafiuddin Syafrizal Fadhil Syahru Muharom, Muhammad Taufiq Rochman WINARTO