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All Journal Jurnal Gizi dan Pangan MEDIA LITBANG SULTENG JEJAK Jurnal Media Wahana Ekonomika AL-Daulah Nurani: Jurnal Kajian Syariah dan Masyarakat JOURNAL OF HEALTHCARE TECHNOLOGY AND MEDICINE INVOTEK: Jurnal Inovasi Vokasional dan Teknologi JURNAL MANAJEMEN MOTIVASI Jurnal Ilmiah Didaktika : Media Ilmiah Pendidikan dan Pengajaran Syntax Literate: Jurnal Ilmiah Indonesia JTERA (Jurnal Teknologi Rekayasa) Journal of Economic, Bussines and Accounting (COSTING) IRJE (Indonesian Research Journal in Education) Edukasi Islami: Jurnal Pendidikan Islam Anterior Jurnal J-MAS (Jurnal Manajemen dan Sains) Jurnal Serambi Engineering Journal of Economic, Management, Accounting and Technology (JEMATech) EQIEN - JURNAL EKONOMI DAN BISNIS EDUKATIF : JURNAL ILMU PENDIDIKAN JIPD (Jurnal Inovasi Pendidikan Dasar) Jurnal Kesehatan Terpadu (Integrated Health Journal) Jurnal Optimalisasi Jurnal Bisnis Dan Kajian Strategi Manajemen Jurnal Sains Riset Management Studies and Entrepreneurship Journal (MSEJ) Abdi Masyarakat Jurnal Komunitas: Jurnal Pengabidian Kepada Masyarakat Jurnal Ilmiah Manajemen Kesatuan JIIP (Jurnal Ilmiah Ilmu Pendidikan) Journal of Energy and Electrical Engineering (JEEE) Community Development Journal: Jurnal Pengabdian Masyarakat At-Tajdid : Jurnal Pendidikan dan Pemikiran Islam Jurnal Ilmu Manajemen Universitas Tadulako (JIMUT) Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences Jurnal Syntax Imperatif : Jurnal Ilmu Sosial dan Pendidikan Indonesia Berdaya Jurnal Manajemen Pendidikan dan Ilmu Sosial (JMPIS) Indonesian Journal of Health Sciences Research and Development (IJHSRD) Jurnal Akuntansi, Manajemen dan Ilmu Ekonomi (JASMIEN) Entrepreneurship Bisnis Manajemen Akuntansi (E-BISMA) Jurnal Alwatzikhoebillah : Kajian Islam, Pendidikan, Ekonomi, Humaniora JURNAL PENGABDIAN KEPADA MASYARAKAT CAHAYA MANDALIKA (ABDIMANDALIKA) International Journal of Engineering, Science and Information Technology Jurnal Pengabdian Masyarakat (ABDIRA) Multidiciplinary Output Research for Actual and International Issue (Morfai Journal) Proceedings of International Conference on Multidiciplinary Research Jurnal Kolaboratif Sains MAQASIDI NUSRA: Jurnal Penelitian dan Ilmu Pendidikan Indonesian Journal of Innovation Studies Journal Of Human And Education (JAHE) Private Law Jurnal Transformasi Administrasi Studi Akuntansi, Keuangan, dan Manajemen Akademika : Jurnal Pemikiran Islam Lamahu: Jurnal Pengabdian Masyarakat Terintegrasi Aliterasi: Jurnal Pendidikan, Bahasa, dan Sastra Indonesia JURNAL PENGABDIAN AGRO AND MARINE INDUSTRY Jurnal Ilmiah MEA (Manajemen, Ekonomi, dan Akuntansi) Economics and Business Journal JAKTABANGUN: Jurnal Akuntansi dan Pembangunan Jurnal Penelitian Ekonomi Manajemen dan Bisnis Jurnal Teknologi Informasi Regress: Journal of Economics & Management Jurnal Pengabdian Kolaborasi dan Inovasi IPTEKS Tadulako International Journal of Applied Management (TaJAM) TOFEDU: The Future of Education Journal Research Horizon Riset Ilmu Manajemen Bisnis dan Akuntansi Jurnal Nuansa: Publikasi Ilmu Manajemen dan Ekonomi Syariah Riwayat: Educational Journal of History and Humanities Jurnal Penelitian dan Pendidikan Agama Islam Dedikasi: Jurnal Pengabdian Pendidikan dan Teknologi Masyarakat International Journal of Renewable Energy Development Jurnal Medika: Medika PENG: Jurnal Ekonomi dan Manajemen REFORM : JURNAL PENDIDIKAN, SOSIAL DAN BUDAYA Jurnal Ilmiah Bisnis dan Ekonomi Asia (Jibeka) Jurnal Studi Islam Jurnal Pengabdian Masyarakat Mandira Cendikia (JPKM-MC) Science: Indonesian Journal of Science TENANG : Teknologi, Edukasi, dan Pengabdian Multidisiplin Nusantara Gemilang NuCSJo : Nusantara Community Service Journal Dedikasi: Jurnal Pengabdian Pendidikan dan Teknologi Masyarakat Falahiya Jurnal Wicara Desa Jurnal Ilmiah Ekonomi Terpadu Journal of Publicness Studies Ekopedia: Jurnal Ilmiah Ekonomi Aksi Kita: Jurnal Pengabdian Kepada Masyarakat eJEBA Tirai Edukasi : Jurnal Pendidikan Seuraya Jurnal Pengabdian Kepada Masyarakat
Muzakir
Jurusan Manajemen, Fakultas Ekonomi, Universitas Tadulako
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Journal : jurnal optimalisasi

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Prospek Ekonomi Peremajaan Perkebunan Kelapa Sawit Rakyat: Analisis Kelayakan di Tingkat Petani, Kabupaten Nagan Raya Irawan, Heri Tri; Arga, Dwi Prasiska Lena; Hasnita, Hasnita; Pandria, T.M. Azis; Ulhaq, Riza; Pamungkas, Iing; Hadi, Khairul; Saputra, Arie; Muzakir, Muzakir
Jurnal Optimalisasi Vol 11, No 1 (2025): April
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jopt.v11i1.11777

Abstract

This research aims to analyze the financial feasibility and sensitivity of investment in the rejuvenation of smallholder oil palm plantations in Lungmane Village, Kuala Pesisir Subdistrict, Nagan Raya Regency, Aceh Province, amidst the problem of declining Fresh Fruit Bunch (FFB) productivity due to aging trees. The research method used is quantitative analysis with investment criteria of Net Present Value (NPV), Internal Rate of Return (IRR), Net Benefit-Cost Ratio (Net B/C), and Payback Period (PP), as well as sensitivity analysis to changes in FFB prices. The results of the analysis show that the rejuvenation project for smallholder oil palm plantations in Lungmane Village is financially feasible based on positive NPV, IRR, Net B/C, and Payback Period indicators. However, the sensitivity analysis reveals that the project's feasibility is highly influenced by fluctuations in FFB prices, where a price decrease of up to 70% can render the project unfeasible. This study concludes that although the rejuvenation of smallholder oil palm plantations in Lungmane Village has good financial prospects, farmers need to be aware of the risk of declining FFB prices.
Analisis Efisiensi Manajemen Persediaan Bahan Bakar Minyak (BBM) Menggunakan Metode Economic Order Quantity (EOQ) di PT XYZ Irawan, Heri Tri; Balqis, Syarifah Naila; Pamungkas, Iing; Pandria, T.M. Azis; Hadi, Khairul; Muzakir, Muzakir
Jurnal Optimalisasi Vol 11, No 2 (2025): Oktober
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jopt.v11i2.13081

Abstract

This study analyzes the efficiency of diesel fuel inventory management at PT. XYZ, located in Desa Peunaga Cut Ujong, Kecamatan Meureubo, Kabupaten Aceh Barat, Aceh. The main problem faced by the company is inefficient fuel inventory management, leading to a mismatch between stock and usage, potential equipment downtime, and high inventory costs. The research objective is to evaluate PT. XYZ's current fuel inventory policy and compare it with the application of the Economic Order Quantity (EOQ) method to identify potential improvements in efficiency and cost savings. The research method used is a quantitative approach with a comparative descriptive design. Secondary data, including records of fuel purchases, usage, and ordering and holding costs for 2024, were collected from PT. XYZ's Supply Chain Management (SCM) division, supplemented by primary data from interviews. Data analysis involved calculating EOQ, determining optimal ordering frequency, safety stock, reorder point, and comparing the Total Inventory Cost (TIC) between the company's existing policy and the EOQ method. The results indicate that PT. XYZ's current fuel inventory management policy incurs significantly higher Total Inventory Costs (TIC) compared to those achievable using the EOQ method. Implementing EOQ substantially optimizes order quantity, frequency, safety stock, and reorder point, which in turn can lead to considerable cost reductions. This suggests that adopting the EOQ recommendations can improve operational efficiency and provide financial benefits for PT. XYZ.
Rancangan Aliran Proses dalam Upaya Meminimumkan Proses Non-Value Added melalui Value Stream Mapping pada UD Usaha Rezeki Prabot Nurmalawati, Nurmalawati; Dewiyana, Dewiyana; Yusnawati, Yusnawati; Pramanda, Ryan; Rahman, Muhammad Abdul; Muzakir, Muzakir
Jurnal Optimalisasi Vol 11, No 2 (2025): Oktober
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jopt.v11i2.12620

Abstract

The flow of process is a sequence of jobs or activities performed in producing goods and services. UD. Usaha Rezeki Prabot, a small-to-medium enterprise (SME) in furniture manufacturing, consistently faces a critical operational challenge: despite stable customer demand (853 units/year of panel door type 7), only 750 units (88%) are delivered on time, resulting in a 12% delay rate. This gap is not caused by insufficient labor or machinery, but by a fragmented production system riddled with non-value-added (NVA) activities particularly repetitive machine setup, excessive material handling, redundant measurements, and long waiting times that inflate lead time to 176.91 minutes per unit. Value Stream Mapping (VSM) is applied as a lean tool to visualize the entire material and information flow, identify dominant wastes (waiting, over-processing, and unnecessary motion), and redesign the workflow. Through the implementation of future-state mapping by grouping components with identical profiles into batch processing and eliminating redundant inspections the NVA time was reduced from 79.95 minutes (45.19%) to 16.07 minutes (15.93%), cutting total lead time by 43%. This study demonstrates that for SMEs like UD. Usaha Rezeki Prabot, sustainable productivity gains come not from capital investment, but from restructuring workflow based on frontline insights to eliminate systemic waste embedded in daily routines. The purpose of this mapping is to identify all types of waste along the Value Stream and to take a move in an attempt to eliminate the waste. The flow of process design with Value Stream Mapping approach enables the company to be able to minimize the non value added activities and to shorten the time taken in the process of making doors and to increase the productivity. The purpose of this Motion and Time study was to do a direct observation about time and movement of someone who is working. UD Rezki Prabot uses the VSM (Value Stream Mapping) to minimize the non value added process and to propose a design to improve the flow of process. The result of this study showed that the time of non value added activities decreased from 176.91 minutes to 100.9 minutes. The non value added activities decreased from 45.19% to 15.93% due to the decrease of non value added activities by sequencing the work activities that the machine does not need to be set up repeatedly.
Pengaruh Beban Kerja Mental Terhadap Kinerja Kurir Menggunakan Metode NASA-TLX Maulana, Riza Anta; Nurmalawati, Nurmalawati; Zeki, Muhammad; Yusnawati, Yusnawati; Nadya, Yusri; Dewiyana, Dewiyana; Muzakir, Muzakir
Jurnal Optimalisasi Vol 12, No 1 (2026): April
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jopt.v12i1.13368

Abstract

PT. Global Jet Express (J&T Express) operates as a last-mile delivery logistics provider serving the delivery of documents and commercial packages in the Langsa City area, Aceh. Initial findings from in-depth interviews revealed that couriers frequently experience symptoms of mental fatigue, such as prolonged lethargy, mild dizziness, musculoskeletal pain, and a decrease in intrinsic motivation, particularly at the end of their shifts. This study aims to analyze the influence of mental workload on the operational performance of couriers, while simultaneously measuring workload levels using the NASA-TLX (National Aeronautics and Space Administration Task Load Index) instrument, which has been tested for validity and reliability in the context of cognitive-physical load assessment. Although subjective, this method allows for relative quantification and comparison between individuals across six dimensions of work pressure: Mental Demand, Physical Demand, Temporal Demand, Performance, Effort, and Frustration. Pearson correlation results showed a coefficient of r = -0.212 (p < 0.05), indicating a weak but statistically significant negative relationship between the average Weighted Workload (WWL) scores and delivery performance (number of packages per day). These findings reinforce the hypothesis that increased mental pressure contributes to a decline in operational efficiency, though it is not proportionally dominant. The distribution of NASA-TLX scores showed a dominance in the "High" category (24 couriers, 50–79) and two cases in the "Very High" category (81.33 and 82.67), with no couriers falling into the "Moderate" or "Low" categories.This confirms that mental workload is a systemic issue within daily operations rather than a mere individual variation.
Co-Authors Abdul Wahab Adfiyani Fadjar Adipta, Marazaenal Affandi Affandi Aglis Andhita Hatmawan, Aglis Andhita Agung Azzul Haq Al Munawir Alfian Amanda, Luvia Amaylia, Annisanur Andini, Mirna Ria Andri Yadi Paembonan Anis Kurlillah Anisah Arga, Dwi Prasiska Lena Arie Saputra Arief Rahman Arif Rahman Hakim Ariyani, Risma Arpan Putra, Kurniawan Aryani, Menik Ashari, Chica Riska Asriadi Asriadi Aulia Salsabila Azizi, Adhelia Nur Balqis, Syarifah Naila Benyamin Parubak Birwin, Alib Boihaqi Boihaqi Busrono, Lalu Muhammad Damrus, Damrus Darman, Darman Dasarja, Lalu Butsiawan Dedi Febrianto Defi Erlita Deni Saputra Dewa Ayu Diah Resty Dewiyana, Dewiyana Dhana, Chika Syahira Dharma, Dian Budi Dian Anggraini Dori Yuvenda Dwiwijaya, Kadek Agus Edi Mawardi Ega Nugraha, Mohammad Elimawaty Rombe Endang Listiowaty Erianda, Nora F Labiro, Richard Fadillah, Alfhi Fadillah, Muhammad Faigah A. Badjamal Faisal Abdullah Fajri Hadi Fakhrul Rijal, Fakhrul Farid Farizal, Teuku Faruq Lamusa Fatahillah, Zahrul Fatmayanti, Fatmayanti Firman Tatariyanto Fitriadi Fitriadi Fitriani, Farida Fitriani, Nurul Fitrianingsih, Ananda Fitrisam, Syarifah Aliyah Fitriyani, Meila Fajar Ghani, Azman Abdul Gusti Andika Yudhistira Hadawiyah, Robiyatul Hadijah Hadijah Hadisah, Hadisah Haidir, Muhammad Haja Hamdi Harmen Hapri Ika Poigi Hardianti, Dina Harmaini Harmaini Harnida Wahyuni Adda Hasan, Fahri Abu Hasanah, Aninda Putri Hasanudin, Bakri Hasbullah Hasbullah Hasnita, Hasnita Helmi Noviar Hesti Evrianti Hidayat , Muhammad Rahmat Hidayat, Muhammad Rahmat Hidayati Hidayati Hilpiana, Lina I Gede Ratnaya I Gst Putu Sudiarta I Made, Sutajaya I Wayan Widiana Idham Idham Idris Idris Iing Pamungkas Ika Marlisa Ikhsan Fajri, Ikhsan Imam Yazid Imanuela, Putri Tania Indabestari Indra Basir INDRA PRATAMA PUTRA SALMON Intan Nuraini IRA NURIYA SANTI Irawan, Heri Tri Irmalis, Amsal Iskandar Iskandar Islam, Azizah Fajar Isra, Isra Jalaluddin, T. Jalil, Ivon Jalil, Ivon Jalil, Muhammad Jayawarsa, A.A. Ketut Junaidi Junaidi Juniar, Fira Kamid, Kamid Karim, Dhifa Latifah Karimah, Nada Kariza, Nur karmila karmila Kasim, Abdul Farid Keumala, Cut Muftia Khairul Hadi Komanik, Ida Jaya Kurniawati, Wiwien Kusumaningsih, Dewi Pramesty L. Hasan Ashari Ladong, Fadhilah S. Lani Dasopang, Zahra Omas Lea Amanda Sari Leli Putri Ansari Lendra Yenti Lestari, Suci Ayu Liandi, Andika Lina, Siti Rosa Lintangsari, Vanesa Lorenzo, Khaerunisa Putri M. Kafrawi Al-Kafiah Samsu M. Yasep Setiawan Maghfira, Muthia Mahardika, Daffa mahdani, said Maidi Saputra Mandaraira, Fitria Mansari, Mansari Mansur Mardaleta , Mardaleta Mardani, Mohammad Mariadita, Icha Marselaa, Anis Marsha, Farha Aulia Marwan Marwan Maryana Masbur Masbur Maskuri Sutomo Masnun Masnun Masyitah Masyitah Masykur, Masykur Maulana, Riza Anta Maulidasari, Cut Devi Mawarzani , Sapka Mawarzani, Sapka Maya Ussifa Trihandono MMSI Irfan ,S. Kom Mohammad Ega Nugraha Mohammad Irfan Mufti Mohammad Zeylo Auriza Morisna, Titin Muh Afandi Muhammad Aqil Muhammad Ardiansyah Muhammad Asir Muhammad Faisal Muhammad Ichsan Muhammad Iqbal Muhammad Rapi Muhammad Ridha Adhari, Muhammad Ridha Muhammad Yanis Muhammad Yusuf Mukhlizar, Mukhlizar Mulana, Zaki Mulisa, Mulisa Mulyanti Mulyanti Munawar Munawar Munawir Munawir Murhaban Murhaban Murhaban Musdalifah, Inayah Nadifah Muslim Zainuddin Muzakkir Nadhifah, Zahra Ariella Nadya, Yusri Nafia, Mar'atun Nanny Harmani Nasrullah Nasrullah Nenden Hendayani Ngatiningrum , Sasi Nislawati, Nislawati Nita Nofryanti , Nofryanti Novi Andriani, Novi Novianti, Ditya Putri Noviar, Noviar Nugraha, Gartika Nur Asrawati Nur Azmi, Nur Nur Hasanah Nurcahaya, Nurcahaya Nurhidayah Nurhidayah Nurhidayah Nurkhatijah, Nurkhatijah Nurma Dewi Nurmalawati, Nurmalawati Nursyofia, Nasya Nur’Asia Nur’Asia Oktafia, Dina Oslami, Ahmad Fikri Parani, Syamsul Bahri Dg Parani, Syamsul Bahri Dg. Patiran, Akbar Ponirin Ponirin Ponirin, Ponirin Pramanda, Ryan Pribadyo, Pribadyo Pricylia Chintya Dewi Buntuang Purmadi, Ary Putra, Alfridho Pramandanu Putra, M. Nizar Perdana Putri Ananda Sari Raden Mohamad Herdian Bhakti Rahman, Muhammad Abdul Rahmat Hidayat, Muhammad Rahmat Mubaraq Raihan Raihan, Raihan Ramadhani, Wanda Raungku, Ayu Azhari Refrenadi Hairi Restutanti Borman, Restutanti Reza Salima Riani Riani, Riani Rida Haris, Kadarisman Ridha, Ismu Rina Pratiwi Pudja I. A Rinaldi Idroes riza ulhaq Rizaldi, Rizaldi Rizki, Maulana Roehan, Herma Avita Rombe, Elimawati Rozi, Anhar Rusdi Rusdi Rusdi Ruslan Ruslan Sa'adati, Nurul Sabina, Dewini Putri Safwandi SAHABUDDIN SAHABUDDIN Sahabudin Sahabudin, Sahabudin Sahiran, Sahiran Sahrudin , Sahrudin Said Abadi Said Fadhlain Sailal Arimi Salingkat, Syarif Salliyuana, Cut Sanusi Sanusi SANWANI SANWANI, SANWANI Saputra, Agam Sasilintang, imadulhaq Razan Satani, Helmi Syahru Septiawan, Eky Setiawati, Tuti Silvia Agustina Siti Aisah Siti Nurhalimah Sofia Sofia, Sofia Sri Agustina, Sri Sri Astuti, Agusta Sri Suwarsi Suandi Suandi Suandi Suardi Suardi Sudarman Sudarman Sulistiawati Sulistyahadi, Sulistyahadi suparman suparman Suparman Suparman Suryadi Suryadi Syahir Natsir Syahril Syahril Syahril Syahril Syamsul Bachri Syamsul Bachri Syamsul Bahri Syiva, Faras Muthia T. M. Azis Pandria Tallesang, Mukhtar Tambaru, Rachman Tania, Bella Tinambunan, Juwita Merinda Umar Syarifuddin Umi Narimawati Untung Suprihadi, Untung Vidyarini, Andra Wahyuningsih Wahyuningsih Wahyuningsih Wahyuningsih Wahyuningsih Wahyuningsih, Yayuk Eko WANTI, ASMA Wayan Suastra Wibawa, Restu Widiantoro, Harry Wijaksono, Ali Wiranti, Ria Wulan Dari Puspita Y, Fadhil Yantoro, Yantoro Yohana Yohana, Yohana Yohana Yuliana Yuliana Yulizar Pramudika Tawil Yundari, Yundari Yusnaidi, Yusnaidi Yusnawati, Yusnawati Zahara, Zakiya Zakia, Titin Zakiyah Zahara Zeki, Muhammad Zhafira, Nabila Hilmy Zian Zilziana