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All Journal ISOQUANT : Jurnal Ekonomi, Manajemen dan Akuntansi Journal of Artificial Intelligence and Digital Business
Setiawan, Langgeng
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Computer Science & IT Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering

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The Influence of Puncture Valve Wear on Bosch Pump Pressure and Main Engine Performance: A Quantitative Analysis of KM. Tanto Bersinar Setiawan, Langgeng; Prawoto, Agus; Ratnaningsih, Dyah; Robbi, Shofa Dai; Kristiyono, Antonius Edy
RIGGS: Journal of Artificial Intelligence and Digital Business Vol. 5 No. 1 (2026): Februari - April
Publisher : Prodi Bisnis Digital Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/riggs.v5i1.6544

Abstract

The Main Mover Diesel Engine or Main Engine on a ship is the main device responsible for moving the ship forward and backward. The diesel engine fuel system, which includes the Bosch Pump, is a critical component in maintaining the engine's performance by providing the fuel necessary for combustion and propulsion of the vessel. The injector, which is used to spray fuel into the engine cylinder, is an important part of the system that supports the efficient combustion process in the main engine. The method used is a quantitative method which includes the collection and analysis of numerical data. By conducting surveys, experiments, or secondary data analysis, researchers can find patterns or generalizations in a larger population. By using quantitative methods, it will be possible to determine the cause of the decrease in Bosch pump pressure on the ship MV.Tanto Bersinar. The analysis of running hoaurs of puncture valve on the fuel injection pump for cylinder 1-8 demonstrates that the wear of puncture valve especially in cylinder 2 with 4.970 hours approaching the planned maintenance system (PMS )limit of 5.000 hours significantly affects injection pressure stability ,combustion,quality ,and main engine officiency ,which can be restored throngh critical component replacement,inspections close to PMS and injection pump recalibration.
Pengaruh Ketersediaan Produk, Layanan, dan Lokasi Bisnis terhadap Keputusan Berkunjung di Toko Dua Bersaudara Setiawan, Langgeng; Riawan; Setiawan, Ferry
ISOQUANT : Jurnal Ekonomi, Manajemen dan Akuntansi Vol. 10 No. 1 (2026): April
Publisher : Universitas Muhammadiyah Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24269/iso.v10i1.3669

Abstract

Perkembangan sektor ritel menunjukkan perubahan signifikan akibat digitalisasi dan meningkatnya persaingan dari ritel modern serta platform daring. Kondisi ini menekan keberlangsungan ritel lokal, khususnya UMKM, yang memiliki keterbatasan sumber daya. Di wilayah non-metropolitan seperti Kabupaten Pacitan, ritel lokal masih memiliki peluang bertahan, namun keberhasilannya semakin ditentukan oleh kemampuan menyediakan produk yang relevan, kualitas layanan, serta lokasi usaha yang strategis. Meskipun berbagai studi telah membahas perilaku konsumen ritel, penelitian yang berfokus pada konteks ritel lokal dengan integrasi ketiga faktor tersebut masih terbatas. Selain itu, penggunaan kerangka Theory of Planned Behavior dalam menjelaskan keputusan berkunjung pada ritel lokal belum banyak dieksplorasi. Oleh karena itu, penelitian ini bertujuan menganalisis pengaruh ketersediaan produk, kualitas layanan, dan lokasi bisnis terhadap keputusan berkunjung konsumen.
Co-Authors Ferry Setiawan Kristiyono, Antonius Edy Prawoto, Agus Ratnaningsih, Dyah Riawan Robbi, Shofa Dai