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All Journal Biospecies AL KAUNIYAH SPEKTRUM INDUSTRI TEKMAPRO Journal of Industrial Engineering and Management Inspiratif Pendidikan OPERATION EXCELLENCE: Journal of Applied Industrial Engineering PROZIMA (Productivity, Optimization and Manufacturing System Engineering) Jurnal Penelitian Pendidikan IPA (JPPIPA) JATI UNIK : Jurnal Ilmiah Teknik dan Manajemen Industri Jurnal Teknik Industri : Jurnal Hasil Penelitian dan Karya Ilmiah dalam Bidang Teknik Industri Metode : Jurnal Teknik Industri Jurnal Biologi Tropis Tibuana : Journal of Applied Industrial Engineering Industri Inovatif : Jurnal Teknik Industri Matrik : Jurnal Manajemen dan Teknik Industri Produksi Dedikasi: Jurnal Pengabdian Masyarakat Community Development Journal: Jurnal Pengabdian Masyarakat Academia Open Jurnal Senopati : Sustainability, Ergonomics, Optimization, and Application of Industrial Engineering Indonesian Journal of Innovation Studies BIOMA : Jurnal Biologi dan Pembelajarannya Jurnal Pengabdian Masyarakat Akademisi PELS (Procedia of Engineering and Life Science) Takuana: Jurnal Pendidikan, Sains, dan Humaniora Jurnal Karya Abdi Masyarakat Journal of Fish Health Innovative Technologica: Methodical Research Journal Journal for Technology and Science IJOT Widya Teknik
Tedjo Sukmono
Universitas Muhammadiyah Sidoarjo
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EOQ Optimization Revolutionizes Inventory Management, Delivering Cost Savings Globally: Optimalisasi EOQ Merevolusi Manajemen Inventaris, Menghasilkan Penghematan Biaya Secara Global Wardhani, Devira Kusuma; Sukmono, Tedjo
Indonesian Journal of Innovation Studies Vol. 25 No. 4 (2024): October
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v25i4.1177

Abstract

Efficient inventory management is crucial for companies to minimize costs while ensuring adequate supply to meet demand. PT Samawa Tirta Alam, a bottled sweet drinking water company, faces significant inventory management issues, notably with refined sugar raw materials. High transportation costs and fluctuating demand contribute to excessive inventory accumulation and increased storage costs, necessitating an optimization strategy. This study implements the Economic Order Quantity (EOQ) method to address these challenges. Through a mixed-method approach, qualitative data were gathered via observations and interviews, while quantitative analysis utilized historical data to calculate optimal order quantities, frequencies, safety stock levels, and reorder points. Results demonstrate substantial cost savings, with optimal order quantities determined, reducing order frequencies from 12 to 2 times per year, and minimizing safety stock levels. The findings underscore the effectiveness of the EOQ method in enhancing cost-effectiveness and operational performance in raw material inventory management for similar companies. Highlights: 1. Cost Efficiency: EOQ method reduces total inventory costs effectively.2. Operational Precision: Minimizing safety stock enhances operational efficiency.3. Strategic Insight: Integrated approach provides practical solutions for inventory management challenges. Keywords: Inventory Management, Economic Order Quantity (EOQ), Cost Optimization, Raw Materials, Transportation Costs
Markov Chains Slash Inventory Costs in Indonesia: Rantai Markov Memangkas Biaya Persediaan di Indonesia Mishani, Adinda Chamilia; Sukmono, Tedjo
Indonesian Journal of Innovation Studies Vol. 25 No. 4 (2024): October
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v25i4.1184

Abstract

PT. Varia Usaha Beton, facing an 8% decline in 2022 targets due to uncontrolled inventory and a 15,150-ton overstock of sand at its BSP Sayung plant, needed an effective solution. This study applied a Markov chain model with perfect enumeration to optimize sand inventory management. Qualitative data from observations, expert interviews, and company records (2021-2022) and quantitative analysis identified Policy 58 as optimal, reducing excess costs to Rp. 32,463,360 monthly. Implementing improvements in specific overstock states (3, 4, 5, and 6) provides a strategic approach to minimize sand overstock and associated costs. Highlight: Inventory Decline: 8% target drop due to uncontrolled inventory in 2022. Optimal Policy: Policy 58 reduced monthly excess costs to Rp. 32,463,360. Strategic Improvements: Implement changes in states 3, 4, 5, and 6 to manage overstock. Keywoard: Inventory Control, Markov Chain, Perfect Enumeration, Overstock Management, Construction Materials
The Role of Traditional Agroforest (Cinnamamon burmanii) to The Bird Conservation In Kerinci Seblat National Park. Sartika, Dani; Subagyo, Agus; Sukmono, Tedjo
Biospecies Vol. 2 No. 2 (2009): Juni 2009
Publisher : Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/biospecies.v2i2.256

Abstract

We undertook a research about the role of cinnamon agroforest in conserving bird inKerinci Seblat National Park. To observe the bird we used method of Indice Poctuale De'Abundance,whereas for the bird identification we employed some methods developed by Mckinnon ( 2001) andKing and Dickison (1993). As a control we also carried out the similar observation in the closed byprimary and secondary forest. The result shows that the bird diversity in cinnamon agroforest is notsignificant compare to that in primary and secondary forest (p>0.05). The index of bird diversity ( H') incinnamon agroforest and secondary forest is in medium class (3.3 and 3.49) while in the primary forestthe index is high (3.50).
Ichthyofauna Biodiversity in Lake Kelari Within the Muaro Jambi National Cultural Heritage Area as a Basis for Establishing a Lubuk Larangan Wulanda, Yoppie; Sukmono, Tedjo; Yunita, Lauura Hermala; Magwa, Rizky Janatul; Putra, Tri Syukria; Utomo, Pradita Eko Prasetyo
Journal of Fish Health Vol. 5 No. 2 (2025): Journal of Fish Health
Publisher : Aquaculture Department, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfh.v5i2.6451

Abstract

Lake Kelari is located in the Muaro Jambi National Cultural Heritage Area (KCBN) and has ecological and economic value as a habitat for various species of fish. This study aims to identify the biodiversity of the lake, conservation status, global distribution, and fish biodiversity index in the lake, which can be the scientific basis for the establishment of the proclamation pit as an in-situ conservation effort. The method used is a survey method including the collection of primary data through fishing using nets, bubu, and fishing rods in the 2023 rainy season and the 2024 dry season, as well as measuring water quality and habitat character. The results of the study show that the biodiversity of ikhtiofauna in Lake Kelari includes; 13 species, 13 genera and 7 families. The biodiversity index shows medium criteria. Lake Kelari has the potential as an insitu conservation area with the discovery of a species of senggiringan fish (Hemibagrus planicep) which has the status of Data Vulnerable in the IUCN Red List. Most of the species found are consumption fish, and some others are ornamental fish. The riparian vegetation found varied, the water quality was relatively maintained, and the absence of introduced fish showed the natural environment of Lake Kelari. In conclusion, Lake Kelari has medium fish biodiversity index with important conservation and economic value. The implementation of the ban can be a strategic step in maintaining fish populations and supporting the sustainability of the ecosystem and local economy.
Biodiversitas Ikan Di Refuge Area Sungai Kapas Tengah Hutan Harapan Jambi Sebagai Database Aplikasi Go Iwak WULANDARI, TIA; Sukmono, Tedjo; Kurniawan, Wawan
Biospecies Vol. 13 No. 1 (2020): Januari 2020
Publisher : Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (509.792 KB) | DOI: 10.22437/biospecies.v13i1.7945

Abstract

Penelitian ini bertujuan untuk mengetahui biodivesitas ikan di Refuge area Sungai Kapas bagian Tengah Butan Harapan Jambi. Penelitian telah dilakukan pada Juli-Agustus 2019 di Sungai Kapas Hutan Harapan Jambi. Penentuan refuge area dilakukan dengan menyusuri Sungai Kapas bagian tengah untuk menemukan anak-anak sungai yang sudah terputus dengan Sungai kapas,, serta bagian sungai kapas serta areal lubuk di Sungai Kapas. Terdapat 4 Refufe area yang dijadikan stasiun yaitu Stasiun 1 Putusan Marihot, Stasin dua Muara Bato, Stasiun 3 Lubuk Kapas, dan Stasiun 4 Lubuk Bato. Pengambilan sampel menggunakan jala lempar , seruo, dan jaring insang, serta tray net. Hasil Penelitian didapatkan 375 ekor ikan, melputi 50 spesies, 29 genus, dan 14 famili, serta 6 ordo. Pada stasiun 2 (Putusan Marihot) ditemukan paling banyak jumlah ikan 151 ekor, diiukuti stasin 3 (Lubuk Kapas) 111 ekor, stasiun 3 (Muara Bato) 71 ekor dan Stasiun 4 ( Lubuk Bato ) 42 ekor. Jumlah spesies setiap stasiun 1 (8 spesies), Stasiun 2 (16 spesies), (29 spesies), stasiun 4( 18 spesies).
ZOOPLANKTON KEANEKARAGAMAN ZOOPLANKTON SEBAGAI INDIKATOR KUALITAS DANAU SIPIN KOTA JAMBI SEBAGAI PENGAYAAN PRAKTIKUM TAKSONOMI MONERA DAN PROTISTA Pangestu, Retno; SUKMONO, TEDJO; HARLIS, HARLIS
Biospecies Vol. 13 No. 2 (2020): Juli 2020
Publisher : Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/biospecies.v13i2.8374

Abstract

Abstract. This study aims to determine the diversity of zooplankton in Lake Sipin. This study uses a descriptive exploratory method by determining the location by purposive sampling. The results showed that found 6 zooplankton classes, namely: Tubulinea, Monogononta, Maxillopoda, Euglenophyceae, Imbricatea, and Eurotatoria consisting of 15 types, namely: Arcella sp., Difflugia globulosa, Difflugia limnetica, Difflugia pyriformis, Asplanchna sp., Brachionus sp., Cyclopoid sp., Macrocyclops varians, Trachelomonas rachiborskii, Euglypa cristata, Polyartha trigla, Trichocerca sp., Trichocerca birostris, Trichocerca bicristata. Abundance ranges from 0.0031 Ind / L - 0.0051 Ind / L; Evenness index ranges from 0.876 - 0.915; diversity index 1.41 - 2.164; and a dominance index of 0.128 - 0.292. Diversity is classified as moderate because the diversity index obtained is greater than 1 and smaller than 3 and no species dominates. It can be concluded that the highest diversity is found in the Tubulinea class. Lake water quality can be tolerated by zooplankton because it tends to have good value. Researchers are advised to conduct research at night to see the relationship between the distribution of zooplankton with the intensity of sunlight, as well as conducting research by determining the location of more diffuse points.
PERILAKU HARIAN BURUNG KAKATUA KOKI (cacatua galerita) DI AREA EX-SITU TAMAN RIMBA ZOO JAMBI: The Daily Behavior Of The Chef Cockatoo (Cacatua galerita) In Ex-Situ Area Of The Jambi Zoo Jungle Park Arba, Risqi Mutia; Sukmono, Tedjo; Prima Nugraha, Anggit
Biospecies Vol. 15 No. 2 (2022): Juli 2022
Publisher : Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/biospecies.v15i2.12241

Abstract

Kakatua koki (Cacatua galerita) merupakan burung yang dilindungi, karena termasuk dalam kategori Least Concern dan termasuk ke dalam Appendiks II, karena banyak diperdagangkan baik di dalam maupun di luar negeri, sehingga memiliki populasi yang terus menurun. Salah satu konservasi ex-situ yaitu Taman Rimba Zoo Jambi. Penelitian ini bertujuan untuk mengetahui aktivitas periaku harian, perilaku makan, dan pakan kesukaan, serta apa saja komposisi pakan kakatua koki (Cacatua galerita) di Taman Rimba Zoo Jambi.  Penelitian ini dilaksanakan pada tanggal 12-25 September 2020. Penelitian ini menggunakan metode Focal Animal Sampling dengan metode pencatatan data secara Continuous Sampling. Data yang didapat berupa data primer, data sekunder, dan dokumentasi. Kemudian data dianalisis menggunakan rumus Altman, hasil berupa tabel dan diagram. Berdasarkan hasil pengamatan terdapat 14 perilaku yang teramati, perilaku yang paling dominan yaitu perilaku bertengger 26% atau 2900 menit, perilaku ingesti 18% atau 2026 menit, perilaku menelisi bulu 12% atau 1384 menit. Adapun pakan yang diberikan untuk kakatua terdiri dari sayur-sayuran [kangkung (Ipomea aquatica), tauge (Vigna radiata), dan wortel (Daucus carota)], biji-bijian [jagung (Zea mays)], buah-buahan [pepaya (Carica papaya) dan pisang (Musa paradisiaca)], serta air digunakan untuk minum. Pakan kesukaan kakatua yaitu jagung (Zea mays) dan pepaya (Carica papaya).
KEANEKARAGAMAN AMFIBI (ORDO ANURA) DI HUTAN LINDUNG GAMBUT LONDERANG TANJUNG JABUNG TIMUR Azhari, Asri; Sukmono, Tedjo; Prima Nugraha, Anggit; Ihsan, Mahya; Suprayogi, Dawam
Biospecies Vol. 15 No. 1 (2022): Januari 2022
Publisher : Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/biospecies.v15i1.14833

Abstract

Hutan gambut merupakan hutan tropis dan menjadi sumber daya alam yang unik yang dapat mendukung keanekaragaman flora dan fauna termasuk amfibi. Hutan gambut sering mengalami kebakaran pada saat musim kemarau. Kebakaran dapat mengancam kelangsungan hidup sejumlah flora dan fauna tak terkecuali amfibi. Penelitian ini bertujuan untuk mengetahui jenis dan komposisi amfibi serta untuk mengetahui indeks keanekaragaman dan kemerataan amfibi di Hutan Lindung Gambut (HLG) Tanjung Jabung Timur. Penelitian ini menggunakan metode Visual Encounter Survey (VES) yang dikombinasikan dengan transek. Transek merupakan transek akuatik yang dibuat sepanjang 500m. Data yang telah diperoleh dianalisis dengan menggunakan Indeks Shannon Wiener dan dengan menghitung kemerataan jenis. Hasil penelitian yaitu jenis amfibi yang didapat ada 4 jenis (Fejervarya limnocharis, Fejervarya cancrivora, Hylarana erythraea dan Pulchrana baramica). Nilai keanekaragaman tergolong sedang dengan nilai H’= 1, 03. Hal ini menunjukkan secara ekologis kondisi habitat di HLG Londerang mampu untuk mendukung keberadaan jenis amfibi. Nilai kemerataan jenis amfibi menunjukkan nilai E= 0,74 yang berarti pensebaran amfibi tergolong cukup merata.
Co-Authors Abdul Rohman Abdul Rohman Adistyas Nastiti, Octavia Afreni Hamidah Afrilia, Riska Agus Subagyo Ahmad Fikri Ardianto Alfian Fajar Gunawan Ali Mashar Ali Sadikin Amatullah, Dhiny Angela, Fitrah Cornellya Apriliana Sari Wulandari, Indah Arba, Risqi Mutia Asni Johari Azhari, Asri Bambang Haryadi Boy Isma Putra Budi, Yusuf Effri Prastyo Cahyana , Atikha Sidhi Dani Sartika Dawam Suprayogi Diwanti Faradiba, Nabila Dristiana, Fila Dwi Kakung Saputro Dzati Fauziyah Ervan Johan Wicaksana Erwin Widiantono Fila Dristiana Gusti Nurina Azhariani Hadian, Mohammad Ekki Hafizah, Mutia Hana Catur Wahyuni Harlis Harlis Hartanti, Lusia Permata Sari Hery Murnawan, Hery Ihsan, Mahya Jamaluddin Jamaluddin Khairatinisa, Khairatinisa Krisna Risky Putra Irawan Leksono, Rudy Bowo Lestari, Wiwik Puji Lindyawati, Lely M.Haris Efendi Hsb Mardhotillah, Bunga Marodiyah, Inggit Mauli, Fajar Dwi Mishani, Adinda Chamilia Mochammad Imam Mashuri Mohammad Buchori Much Syafiudin Muhammad Arizki Zainul Ramadhan Muhammad Dio Dwi Septian Mukhammad Surya Lesmana Muswita Muswita Nafis Khumaidah Natalia, Desfaur Nazifa, Boti Iffa Novi Prastyanda Putra Pratama Nugraha, A. Prima Nugroho, Dizsa Arliansyah Nurma M. Hidayatulloh Octavia Adistyas Nastiti Pangestu, Retno Putra, Tri Syukria Putri, Andini Faizatul Putri, Arinda Jayanti Putri, Melinda Aprilia Rachman, Meisya Azzahra Radiana Atika Sari Rany Riyantati, Dena Rasyid, Mohammad Andi Ribangun Bamban Jakaria Rizky Janatul Magwa Rudy Bowo Leksono Salsabila, Nisrina SANDI KURNIAWAN Sanjaya, Muhammad Erick Saputra, Nur Qomaruddin Sari , Indah Apriliana Sari W, Indah Apriliana Sari Wulandari, Indah Apriliana Setiawan, Ari Rio De Sigit Wahono sisiliani, fitria trisna Sofillauny, Zahara Suhadak Sulistiono Suzanti, Sriliah Syaifullah, Dikril Ilham Tia Wulandari Upik Yelianti Utomo, Pradita Eko Prasetyo Varid Jainuri Wahono, Sigit Wahyu Nugroho Wahyu Setiawan, Ardhi Wardhani, Devira Kusuma Wawan Kurniawan Wijatmiko, Erie Fadma Noer Fitriana Winda Dwi Kartika, Winda Dwi Wiwik Sulistiyowati Wulandari, Indah Apriliana Sari Yoppie Wulanda Zurweni Zurweni