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All Journal Journal of English and Arabic Language Teaching Sinergi JPSE (Journal of Physical Science and Engineering) Jurnal Penelitian Sains Jurnal Penelitian Pendidikan IPA (JPPIPA) JURNAL MANAJEMEN DAN PELAYANAN FARMASI (Journal of Management and Pharmacy Practice) Bernas JURNAL INSTEK (Informatika Sains dan Teknologi) Building of Informatics, Technology and Science International Journal of Applied Sciences and Smart Technologies Jurnal Sains dan Edukasi Sains Andalasian International Journal of Applied Science, Engineering, and Technology Journal of Renewable Energy, Electrical, and Computer Engineering Journal of Industrial Engineering and Halal Industries PAsira (Journal of Public Administration Musi Raya) Jurnal Pendidikan Sains Indonesia (Indonesian Journal of Science Education) Jurnal Teknologi dan Vokasi Journal of Bussines Management Basic Jurnal Solusi Masyarakat Dikara Indonesian Journal of Studies on Humanities, Social Sciences and Education E-Amal: Jurnal Pengabdian Kepada Masyarakat IRDH International Journal of Technology, Agriculture and Natural Sciences (IRDH IJTANS)
Robi Kurniawan
Universitas Negeri Malang
Religion Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry 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 Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Other

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Pengembangan Film Tipis ZnO/SiO2/Si untuk Aplikasi Fototermoelektrik: Sintesis dan Karakterisasi Lia Fibriyanti; Robi Kurniawan; Chusnana Insjaf Yogihati; Eny Latifah
Jurnal Penelitian Pendidikan IPA Vol 11 No 10 (2025): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i10.12935

Abstract

Photothermoelectric (PTE) conversion integrates photothermal and thermoelectric effects, where light irradiation generates a temperature gradient that induces voltage through the Seebeck effect. This study examines the influence of annealing treatment on the structural, morphological, and optical properties of ZnO/SiO₂/Si thin films for PTE applications. ZnO films were synthesized on SiO₂/Si substrates modified via a hydrothermal process, with samples prepared under two conditions: without annealing and with annealing at 700, 1000, and 1100°C. X-ray diffraction (XRD) analysis showed that the unannealed sample had low crystallinity and small grain size, while annealed samples exhibited improved crystallinity and grain growth consistent with the wurtzite ZnO phase. Scanning electron microscopy (SEM-EDX) revealed that annealing transformed irregular, porous structures into more compact and uniform grains, with elemental composition approaching the stoichiometric Zn:O ratio. UV–Vis spectroscopy indicated that annealing broadened the absorption range (330–1100 nm) and reduced defect-related absorption. The enhanced crystallinity and optical absorption imply improved photothermal and thermoelectric potential. Overall, optimizing annealing temperature effectively enhances the light–heat–electricity conversion capability of ZnO/SiO₂/Si thin films for photothermoelectric device applications.
The Optimization of Flow Shop Scheduling in Milling Stoper Production Using Campbell Dudek Smith Algorithm Haposan Vincentius Manalu; Insan Kamil; Oki Setiawan; Darti Purnama Sari; Siti Adriani; Ifti Luthviana Dewi; Robi Kurniawan; Lavita Indriani Br. Ginting; Khollilah Nuraini
Journal of Industrial Engineering and Halal Industries Vol. 7 No. 1 (2026): Journal of Industrial Engineering and Halal Industries (JIEHIS)
Publisher : Industrial Engineering Department, Faculty of Science and Engineering, UIN Sunan Kalijaga Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/jiehis.6308

Abstract

Non-optimal production scheduling in a flow shop system can increase makespan, idle time, and workload imbalance among machines. This study aims to optimize the production scheduling of a milling stopper in a manufacturing workshop using the CDS algorithm. This research contributes to improving the efficiency of production systems, particularly in conventional machining processes. The data used consist of processing times for four jobs. The CDS algorithm generates six alternative scheduling sequences, which are then compared based on their makespan values. The results show that the best job sequence is obtained in the fourth iteration, with the order starting from Top Arm, Bottom Arm, Base, and Silinder, resulting in a makespan of 1599 minutes. The Gantt chart indicates that the bottleneck occurs at the conventional milling machine, while idle time arises due to imbalanced processing times among machines. This study demonstrates that the CDS algorithm is effective in minimizing makespan and improving the efficiency of flow shop production systems.
ANALISA PERENCANAAN DAN INSTALASI SISTEM PENYALUR PETIR EKSTERNAL TIPE EARLY STREAMER EMISSION DI BATAMINDO POWER HOUSE Sumarsono Sumarsono; Arif Febriansyah Juwito; Hasnira Hasnira; Irwanto Zarma Putra; Yusiran Yusiran; Robi Kurniawan; Jihan Zeinyuta Rosafira; Muhammad Veven; Muhammad Syafei Ghozali
Jurnal Teknologi dan Vokasi Vol 4 No 2 (2026): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2026.4.2.%p

Abstract

Indonesia secara geografis terletak di daerah khatulistiwa dengan iklim tropis dan dikelilingi oleh lautan, menyebabkan tingginya tingkat hari guruh yang terjadi diwilayah ini. Begitu pula dengan pulau Batam yang terletak di Provinsi Kepulauan Riau memiliki karakteristik hari guruh yang tinggi, dimana hal ini dapat dilihat dari tingkat isokraunic level sambaran yang terjadi di area ini yang dapat mencapai lebih dari 215 sambaran per tahun. Kondisi ini menyebabkan perlunya perencanaan dan instalasi sistem penyalur petir eksternal yang dilakukan di area Power House Batamindo Industrial Park, agar kehandalan suplai energi listrik untuk pelanggan diwilayah industri tetap handal dan aman, walaupun tingkat sambaran petir diwilayah ini tinggi. Perencanaan dan instalasi sistem penyalur petir dilakukan dengan mengacu standar Peraturan Umum Instalasi Listrik (PUIL) dan standar nasional melalui Persyaratan Umum Instalasi Penangkal Petir. Dari hasil perencanaan dan instalasi sistem penyalur petir yang dilakukan oleh PT Lancang Kuning Sukses (PT LKS) selaku kontraktor pelaksana project ini, dilakukan pengumpulan data berupa data sheet head unit penyalur petir dimensi ketinggian dan luasan area proteksi serta melakukan pengukuran tahanan pentanahan. Dari pengukuran yang dilakukan terhadap pentanahan sistem penyalur petir diperoleh nilai sebesar 0,56 Ohm, dimana besar nilai pentanahan ini telah sesuai dengan standar PUIL sebesar < 5 Ohm.
Co-Authors Adi Setiawan Adulsman Sukkaew Ahmad Taufiq Ainun Nikmah Anton Mardoni APRILIANI, AULIA Arif Febriansyah Juwito Arnawan Hasibuan Baidhawi, B Bhunte, Shrikant Vasantrao Buriyanti, Elgi Cahyani Intan Ramadani Cahyo, Daeng Nur Chusnana Insyaf Yogiyanti Cindya Sari, Elok Putri Crisca, Rini Damayanti, Wulan Ariani Darti Purnama Sari Desky, Muhammad Aulia Eny Latifah, Eny Ezwarsyah Ezwarsyah Fatimah, Vera Nur Firmansyah, Gugum Aji Fisip PAsira Fitriana, Ilma Gard, Muskan Halimahtus Sahdiah Haposan Vincentius Manalu Hasnira Hasnira Hendrival, H Herman Fithra I Made Ari Nrartha Ibrahim Nur Afrizal Dahlan M. Ifti Luthviana Dewi Insan Kamil Intan Salsabila Mauludina Sari Irwanto Zarma Putra Isa, Muzamir Isnaini Yulianingtyas Jihan Zeinyuta Rosafira Joko Suwardy Joko Utomo Joyuhan Putra Setyawan Kholifah, Mimin Nurul Khollilah Nuraini Kultsum, Ummu Kurniawan, Bakhrul Rizky Kurniawan, Reza Wahyu Lavita Indriani Br. Ginting Lia Fibriyanti M. Ari Prayogo Mardi Murahman Mercado, Justine C Meutia Mila Azizah Mimin Nurul Kholifah Muhammad Daud Muhammad Dian Ilham Akbar Muhammad Syafei Ghozali Muhammad Veven Nasution, Ardiansyah Nining Kurniasih, Nining Nur Elma Ayu Wahyuni Nurdin Nurdin Nurul Khoiriyah Oki Setiawan Purbo Suwasono Ramadani, Cahyani Intan Ramadhani, Dea Berliana Resti Marlina Reyza Arief Taqwa, Muhammad Rita Mawarni CH Safina, Putri Anjali Sah, Andrian Salmah*, Ummi Salmah, Ummi Setiana, Mina Devika Sholikhah, Mar’atus Siregar, Widyana Verawaty Siti Adriani Suci Hanifah Sumarsono Sumarsono Supranata, Yogi Suwasono*, Purbo Swapno, S M Masfequier Rahman Syafrizal Hasibuan Tanniewa, Adam M Yundari, Yundari Yusiran Yusiran Zainullah, Muhammad