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All Journal SENTRI: Jurnal Riset Ilmiah Hexagon Jurnal Pendidikan dan Pengabdian Masyarakat Jurnal Gear : Energi, Perancangan, Manufaktur & Material
Muhamad Hidayat
Universitas Teknologi Sumbawa
Aerospace Engineering Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering Other

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ANALISIS KEKUATAN UJI BENDING PENGELASAN SHIELDED METAL ARC WELDING (SMAW) MATERIAL SS400 MENGGUNAKAN KAWAT LAS E6013 BERBAGAI VARIASI ARUS LISTRIK Oktavian Dwi Nata; Muhamad Hidayat; Sopyan Ali Rohman
Hexagon Jurnal Teknik dan Sains Vol 2 No 1 (2021): HEXAGON - Edisi 3
Publisher : Fakultas Teknologi Lingkungan dan Mineral - Universitas Teknologi Sumbawa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (373.914 KB) | DOI: 10.36761/hexagon.v2i1.871

Abstract

Pengelasan adalah proses menyambungkan dua logam atau lebih dengan cara melelehkan logam induk menggunakan energi panas. Penelitan ini bertujuan untuk mengetahui nilai kekuatan uji bending pada pengelasan SMAW menggunakan kawat las E6013 dengan berbagai variasi arus listrik, yaitu 80A, 90A dan 100A. Metode pengelasan yang digunakan adalah las SMAW dengan material SS400. Jenis kampuh yang digunakan adalah kampuh V dengan kemiringan 60° standarisasi AWS d1.1:2000. Pengujian yang dilakukan adalah pengujian bending dengan metode Three Point Bending. Spesimen uji bending berdasarkan standarisasi ASTM E23-02. Nilai kekuatan uji bending paling rendah adalah pada kuat arus 80A dengan nilai rata-rata tegangan bending sebesar 1,256 N/mm². Nilai rata-rata kekuatan uji bending ­untuk kuat arus 90A rata - rata tegangan bending sebesar 1,305 N/mm².Untuk kuat arus 100A adalah yang terbesar yaitu sebesar 1,387 N/mm².
Analisis Implementasi Mobile E-Samsat Delivery dalam Peningkatan Pembayaran Pajak Kendaraan dan Pendapatan Asli Daerah di Kabupaten Sumbawa Masriki Masriki; Muhamad Hidayat
SENTRI: Jurnal Riset Ilmiah Vol. 5 No. 7 (2026): SENTRI : Jurnal Riset Ilmiah, Juli 2026
Publisher : LPPM Institut Pendidikan Nusantara Global

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55681/sentri.v5i7.6977

Abstract

Motor vehicle tax is an important source of Regional Original Revenue (PAD), but the increase in the number of vehicles in Sumbawa Regency has not been matched by taxpayer compliance. The government has introduced digital innovations such as SIGNAL and E-Samsat Delivery to facilitate tax payments and improve services. Previous research results show that the effectiveness of these innovations is still varied. Therefore, this study aims to analyze the impact of implementing a digital tax payment application on the increase in motor vehicle tax payments and PAD in Sumbawa Regency. This study uses a qualitative method with a descriptive approach and case study strategy to gain an in-depth understanding of the implementation of the E-Samsat Delivery application in increasing motor vehicle tax payments in Sumbawa Regency. This approach was chosen because it can delve into the experiences, perceptions, and views of the Head of Samsat, managing staff, and taxpayers thru observation, interviews, and documentation. Additionally, this research uses the Technology Acceptance Model (TAM) framework to analyze perceptions of ease, usefulness, attitude, and intention to use the application. The research results show that Mobile E-Samsat Delivery facilitates vehicle tax payments and has the potential to increase taxpayer compliance. However, its contribution to increasing PAD is not yet optimal because the number of users and service uptake has decreased. Based on the analysis of the Technology Acceptance Model (TAM), perceived usefulness is the most influential factor in the acceptance of the application, followed by perceived ease of use, positive attitude, and the community's intention to use the service. The success of the implementation still requires improvements in socialization, digital literacy, and service quality.
Analisis Kelayakan Penggunaan Tameng Bertegangan Rendah dalam Penanganan Konflik Sosial: Kajian Aspek Keselamatan dan Efektivitas pada Kompi 1 Yon B Pelopor Brimob di Kabupaten Sumbawa Besar Arie Prima; Muhamad Hidayat
SENTRI: Jurnal Riset Ilmiah Vol. 5 No. 7 (2026): SENTRI : Jurnal Riset Ilmiah, Juli 2026
Publisher : LPPM Institut Pendidikan Nusantara Global

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55681/sentri.v5i7.6978

Abstract

Research on Public Order Control (PHH) shields has generally focused on material strength, impact resistance, and ergonomic design as passive protective equipment. However, studies integrating shatter-resistant materials, high impact resistance, and low-voltage technology into a single protective system to enhance both personnel safety and crowd-control effectiveness remain limited. This research gap indicates the absence of comprehensive investigations evaluating the feasibility of low-voltage shields from the perspectives of user safety, operational effectiveness, and compliance with the Indonesian National Police's (POLRI) use-of-force principles. Therefore, this study examines the feasibility of implementing low-voltage shields for Company 1, Battalion B Pelopor, Mobile Brigade Corps (Brimob), in Sumbawa Besar Regency, with particular emphasis on the shields' ability to provide optimal protection through shatter-resistant materials, superior impact resistance, and a non-lethal low-voltage electric shock mechanism to support safer and more effective social conflict management. This research employs a qualitative-descriptive approach using a case study strategy, with data collected through in-depth interviews, field observations, and documentation. The Technology Acceptance Model (TAM) developed by Davis (1989) is used as the analytical framework with three main constructs: Perceived Usefulness, Perceived Ease of Use, and Actual System Use. The results reveal high levels of perceived usefulness and ease of use among all seven informants, though actual implementation has not yet been carried out due to the absence of specific regulations and standardized testing. The study concludes that low-voltage shields are technically and operationally feasible as an innovative PHH equipment for Brimob personnel in handling social conflicts in Sumbawa Regency, provided that technical standards, SOP formulation, special training, and institutional legalization are fulfilled.
Metrologi Legal sebagai Strategi Membangun Kepercayaan Konsumen untuk Mendorong Inovasi Layanan pada Toko Emas Urian Firmansyah AR; Zulkieflimansyah Zulkieflimansyah; Muhamad Hidayat
SENTRI: Jurnal Riset Ilmiah Vol. 5 No. 7 (2026): SENTRI : Jurnal Riset Ilmiah, Juli 2026
Publisher : LPPM Institut Pendidikan Nusantara Global

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55681/sentri.v5i7.6989

Abstract

Legal metrology has traditionally been viewed as a regulatory instrument for ensuring measurement accuracy and consumer protection. However, its strategic role as a mechanism for building consumer trust and fostering service innovation has received limited scholarly attention, particularly in the gold retail sector. This study examines the relationships among Legal Metrology, Consumer Trust, and Service Innovation, while investigating the mediating role of Consumer Trust in the relationship between Legal Metrology and Service Innovation on gold stores in Sumbawa Regency. A quantitative explanatory research design was employed involving 146 respondents selected through purposive sampling, whereas data collection was operationally conducted using accidental sampling among eligible consumers. Data were analyzed using Partial Least Squares Structural Equation Modeling (PLS-SEM) with SmartPLS 4. The findings indicate that Legal Metrology has positive and statistically significant relationships with Consumer Trust (β = 0.828; p < 0.001) and Service Innovation (β = 0.351; p = 0.017). Consumer Trust also demonstrates a positive and statistically significant relationship with Service Innovation (β = 0.442; p = 0.005) and partially mediates the relationship between Legal Metrology and Service Innovation (β = 0.366; p = 0.009). These findings suggest that Legal Metrology should not only be viewed as a regulatory compliance mechanism but also as a managerial strategy for strengthening consumer trust and encouraging service innovation. This study contributes empirically by extending the application of Signaling Theory and Commitment–Trust Theory within the context of measurement-based gold retailing.
Pemberdayaan dan Penerapan Teknologi Pengeringan untuk Meningkatkan Kualitas dan Efisiensi Industri Ikan Kering Poklahsar Saling Sakiki di Dusun Padak Sumbawa Muhamad Hidayat; Zulkieflimansyah Zulkieflimansyah; Nurasia Nurasia; Sri Rahayu; Taufik Atisina; Muhammad Hudzaifah
Jurnal Pendidikan dan Pengabdian Masyarakat Vol. 9 No. 1 (2026): Februari
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppm.v9i1.10873

Abstract

Program Pengabdian kepada Masyarakat (PkM) ini bertujuan mengatasi permasalahan utama yang dihadapi oleh Industri Rumah Tangga (IRT) Poklahsar Saling Sakiki di Desa Labuan Sumbawa, yaitu ketergantungan penuh pada cuaca dan pemasaran tradisional dalam proses pengeringan ikan teri. Metode tradisional dengan sinar matahari menyebabkan produksi terhenti saat musim hujan dan berisiko menurunkan mutu produk.Solusi yang diterapkan adalah intervensi ganda: (1) Penyediaan dan instalasi mesin pengering ikan bersumber gas (LPG) berkapasitas 100 kg dengan kontrol waktu dan temperatur otomatis; serta (2) Pelatihan komprehensif mengenai pengoperasian mesin dan strategi pemasaran berbasis teknologi informasi (e-commerce). Kegiatan dilaksanakan melalui lima tahapan inti: identifikasi masalah, perencanaan, persiapan, pelaksanaan pelatihan dan serah terima alat, serta evaluasi awal.Hasil awal PkM menunjukkan capaian signifikan: kelompok mitra kini dapat memproduksi ikan kering sepanjang tahun tanpa terpengaruh cuaca, yang secara langsung meningkatkan kualitas produk (konsistensi mutu) dan mengurangi risiko kerusakan. Selain itu, pelatihan pemasaran digital berhasil meningkatkan pemahaman anggota dalam pemanfaatan e-commerce. Dampak program ini adalah terciptanya stabilitas produksi, peningkatan pendapatan mitra, dan potensi kelompok untuk menjadi model adopsi teknologi pengeringan ikan berkelanjutan di wilayah Sumbawa.
Modifikasi Lapisan Tungku Bakar Dan Kecepatan Aliran Udara untuk Meningkatkan Kinerja Kompor Oli Bekas Aditya Syah; Muhamad Hidayat; Mietra Anggara; Aldrin Aldrin
Jurnal GEAR (Energi, Perancangan, Manufaktur & Material) Vol 4 No 2 (2026): Edisi 8
Publisher : Program Studi Teknik Mesin Fakultas Rekayasa Sistem Universitas Teknologi Sumbawa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36761/gear.v4i2.7212

Abstract

This research is motivated by the increasing price and scarcity of 3 kg LPG in Indonesia, particularly in Dompu Regency, West Nusa Tenggara, which burdens the low-income community. In addition, the abundant waste lubricating oil from motor vehicles poses an environmental hazard if not utilized properly. The objective of this study is to modify a prototype of a used oil stove to enhance its thermal performance evaluated through the Water Boiling Test (WBT) method. The methodology involves computer-aided mechanical design followed by adding a 6 mm fiberglass insulation layer around the combustion chamber and integrating an internal air flow control valve in the inlet pipe. The experiments were conducted using four operational variables combining air pressure levels and insulation states for boiling 3 liters of water. The results demonstrated that the maximum flame temperature reached 270°C under high air pressure combined with fiberglass insulation. The highest thermal efficiency achieved was 37% with a fuel consumption rate of 19.63 g/min, yielding an input power of 196.25 W and an output power of 71.74 W. The modification successfully elevated the stove's thermal performance, providing a cost-effective and eco-friendly energy alternative.
Peran Inovasi Jibom Alat Mirror Set dalam Meningkatkan Keselamatan dan Produktivitas Kerja dalam Kegiatan Sterilisasi Personil Gegana Sumbawa Besar Satbrimobda Polda NTB Muhammad Syahabuddin Ibrahim; Muhamad Hidayat
SENTRI: Jurnal Riset Ilmiah Vol. 5 No. 8 (2026): SENTRI : Jurnal Riset Ilmiah, Agustus 2026
Publisher : LPPM Institut Pendidikan Nusantara Global

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55681/sentri.v5i8.6979

Abstract

The Indonesian National Police Mobile Brigade Corps (Korps Brimob Polri), particularly Sub-Detachment 3 Gegana in Sumbawa Besar, faces operational challenges due to delays in procuring the Jibom Mirror Set, a critical device used in bomb threat sterilization. The shortage of this equipment has reduced operational effectiveness, productivity, and personnel safety by requiring manual inspection procedures that increase the risk of accidents, work-related stress, and human error. To address this issue, personnel developed an independent Jibom Mirror Set as a practical, cost-effective, and efficient innovation without compromising operational functionality. This study employed a descriptive qualitative method with a case study approach conducted at Sub-Detachment 3 Gegana, Satbrimob of the West Nusa Tenggara Regional Police, Sumbawa Besar, from January to June 2026. Data were collected through observation, in-depth interviews with three Gegana personnel and two commanding officers selected using purposive sampling, and documentation. Data were analyzed using Sugiyono's qualitative analysis model, including data reduction, data display, and conclusion drawing, with validity ensured through triangulation. The analysis used the Technology Acceptance Model (TAM) dimensions of Perceived Usefulness and Perceived Ease of Use. Findings indicate the independently developed Jibom Mirror Set significantly improves sterilization effectiveness by accelerating inspection processes, expanding visual coverage, and increasing accuracy. The device also enhanced productivity by enabling faster, more efficient, and more accurate inspections in confined areas.
Co-Authors Aditya Syah Aldrin - Arie Prima Masriki Masriki Mietra Anggara Muhammad Hudzaifah Muhammad Syahabuddin Ibrahim Nurasia Nurasia Oktavian Dwi Nata Sopyan Ali Rohman Sri Rahayu Taufik Atisina Urian Firmansyah AR Zulkieflimansyah Zulkieflimansyah