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All Journal Jurnal Akuntansi dan Pajak Acta Aquatica: Aquatic Sciences Journal Metode : Jurnal Teknik Industri Jurnal DISPROTEK Jurnal Sains Sosio Humaniora Juriti Prima (Jurnal Ilmiah Teknik Industri Prima) Jurnal Teknik Industri Terintegrasi (JUTIN) Journal of Industial Engineering and Technology Suluh: Jurnal Seni Desain Budaya Jurnal Pengabdian Masyarakat Waradin Jurnal Karya Abdi Masyarakat Jurnal Riset Rumpun Ilmu Teknik (JURRITEK) Journal Research of Social Science, Economics, and Management Science and Technology (SciTech) Jurnal Industri dan Inovasi (INVASI) International Journal of Economics, Management and Accounting Manufaktur: Publikasi Sub Rumpun Ilmu Keteknikan Industri Jupiter: Publikasi Ilmu Keteknikan Industri, Teknik Elektro dan Informatika International Journal Business, Management and Innovation Review Integrasi: Jurnal Ilmiah Teknik Industri
Dwi Retna Sulistyawati
Universitas Islam Nahdlatul Ulama Jepara
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering 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 Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Transportation Other

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Analisis stok rajungan (Portunus pelagicus Linnaeus, 1758) di pantai utara Jepara, Provinsi Jawa Tengah Setiyowati, Desti; Sulistyawati, Dwi Retna
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica: Aquatic Sciences Journal, Vol. 6: No. 2 (October, 2019)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v6i2.1367

Abstract

AbstrakSumberdaya rajungan (Portunus pelagicus) di perairan Kabupaten Jepara menjadi salah satu komoditas yang banyak diminati oleh nelayan untuk ditangkap karena memiliki nilai jual yang tinggi, baik sebagai komoditas lokal maupun komoditas ekspor. Kebutuhan di pasar ekspor rajungan semakin meningkat sehingga menyebabkan kegiatan penangkapan rajungan ikut meningkat. Kenaikan upaya tangkap yang tidak terkendali dikhawatirkan menimbulkan penurunan produksi hasil tangkapan dan kondisi tangkap lebih pada stok rajungan. Potensi Kabupaten Jepara sebagai wilayah yang memberikan kontribusi pada penangkapan rajungan cukup tinggi untuk itu perlu adanya manajemen atas stok rajungan agar kontinuitas rajungan di pasar tetap terjaga dan stabil. Penelitian ini dilaksanakan pada bulan Januari hingga Desember 2017 disekitar pantai utara Jepara meliputi Desa Demaan, Kedung, dan Bondo Kabupaten Jepara. Tujuan penelitian ini adalah untuk mengkaji stok rajungan melalui analisis pola pertumbuhan, parameter pertumbuhan populasi, laju mortalitas, tingkat eksploitasi, dan pola rekrutmen rajungan di Pantai Utara Kabupaten Jepara. Pengambilan data dilakukan secara acak sederhana (simple random sampling). Pengambilan sampel menggunakan alat tangkap yang biasa di gunakan oleh nelayan rajungan di Jepara yaitu dengan menggunakan alat tangkap bubu lipat. Sampel yang terkumpul, dilakukan pengukuran parameter biologi rajungan yang meliputi ukuran lebar karapas. Hasil penelitian diperoleh bahwa ukuran lebar karapas rajungan yang paling banyak tertangkap di Pantai Utara Kabupaten Jepara adalah 136,70 mm. Secara umum pola pertumbuhan rajungan adalah allometrik negatif dengan persamaan pertumbuhan rajungan yang didapat adalah Lt = 172,09 [1- ]. Laju mortalitas alami (M) rajungan sebesar 0,91 per tahun dan laju mortalitas penangkapan (F) sebesar 3,25 per tahun, sehingga diketahui laju eksploitasi rajungan (E) sebesar 78% (overexploited). Pola rekruitmen rajungan di Pantai Utara Kabupaten Jepara tertinggi pada bulan Januari (15,02%)Kata kunci: Portunus pelagicus; stok; pertumbuhan; mortalitas; eksploitasi; rekruitmenAbstractBlue Swimming crab (Portunus pelagicus) resources in the waters of Jepara Regency are one of the commodities that are much in demand by fishers to be caught because they have a high selling value, both as a local commodity and an export commodity. The need for the crab export market is increasing so that it causes increased fishing activities. The increase in uncontrolled fishing efforts is feared to lead to a decrease in catch production and more catch conditions in the crab stock. The potential of Jepara Regency as a region that contributes to the capture of crabs is quite high, so that management of the crab stock is needed so that crab continuity in the market is maintained and stable. This research was conducted from January to December 2017 around the northern coast of Jepara including the villages of Demaan, Kedung, and Bondo, Jepara Regency. The purpose of this study is to study the crab stock through analysis of growth patterns, parameters of population growth, mortality rate, exploitation rate, and crab recruitment patterns on the North Coast of Jepara Regency. Data retrieval is done in simple random sampling. Sampling using fishing gear commonly used by crab fishermen in Jepara is by using a fishing trap. The collected samples were measured by the crab biological parameters which included the size of the carapace width. The results of the study showed that the width of the crab carapace most caught on the North Coast of Jepara Regency was 136.70 mm. In general, the crab growth pattern is negative allometric with the crab growth equation obtained is Lt = 172,09 [1- ].  The natural mortality rate (M) is 0.91 per year and the catch mortality rate (F) is 3.25 per year, so the crab exploitation rate (E) is known to be 78% (overexploited). The pattern of crab recruitment on the North Coast of Jepara Regency was highest in January (15.02%).Keywords: Portunus pelagicus; stock; growth; mortality; exploitation; recruitment
Trust (Amanah) Competence Poerbantoro, Heri; Sukamto, Sukamto; Andini, Rita; Handayani, Tri; Sulistyawati, Dwi Retna
Journal Research of Social Science, Economics, and Management Vol. 3 No. 12 (2024): Journal Research of Social Science, Economics, and Management
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/jrssem.v3i12.699

Abstract

This article aims to describe the relationship between the competence concept and the Islamic value of trust (amanah). Trust (amanah) competence is an ability of a person to incorporate a set of knowledge, skills, and trust based on the nature of integrity, sincerity, and responsibility, in order to obtain happiness and success. The new concept of competence requirement is expected to become the foundation for human resource development, so that competent professionals would avoid bad behavior and corruption. This study's contribution to the Resource-Based View Theory, particularly its emphasis on competence, is founded on knowledge and trustworthiness.
Analisis Kelayakan Usaha Bawang Merah Gapoktan Karya Makmur Desa Pasir Kecamatan Mijen Kabupaten Demak Ahmad Naja Abadi; Dwi Retna Sulistyawati; Gunawan Mohammad
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 4 No. 3 (2025): Desember : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v4i3.6482

Abstract

This study also highlights the importance of education and training for farmers to improve their technical skills in farming and managing their farms. Training in the use of modern agricultural technologies, such as automated fertilizing tools and efficient irrigation systems, can help farmers reduce production costs and increase yields. Furthermore, training in digital marketing can help farmers market their products more effectively through online platforms, reducing reliance on intermediaries and increasing profit margins. Furthermore, it is crucial for the government to provide support in the form of extension services and easy access to business capital. More accessible capital will enable farmers to invest in more efficient equipment and more environmentally friendly organic fertilizers. Targeted microcredit distribution to farmer groups can also accelerate the adoption of new, more productive agricultural technologies. The adoption of sustainable and environmentally friendly agricultural practices should be a long-term focus to ensure the registration of shallot farming businesses. Farmers need to be incentivized to use organic fertilizers and natural pesticides that are safer for the soil and air. Furthermore, the implementation of integrated and environmentally friendly farming systems such as agroforestry can also be an alternative to increase agricultural yields without damaging the environment. With improvements in education, training, access to capital, and the adoption of more efficient technology, shallot farming in Pasir Village can develop better and become more sustainable in the future. Furthermore, collaboration between farmer groups and local research institutions and universities can also be key to introducing new agricultural innovations.
Analisis Optimasi Rute Distribusi Gas LPG 3 Kg Menggunakan Metode Capacitated Vehicle Routing Problem (CVRP) pada PT Pangkal Rizqi Abadi Alingga Anisful Laili; Dwi Retna Sulistyawati; Gunawan Mohammad
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 4 No. 3 (2025): Desember : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v4i3.6483

Abstract

Distribution is an important aspect that affects the operational efficiency of a company, especially in terms of goods delivery. This study aims to develop an optimization model for LPG gas distribution routes using Excel Solver based on geographic coordinate conversion. In this study, the method used includes converting geographic coordinates from decimal to Degree-Minute-Second (DMS) format, followed by conversion to kilometers to form a more accurate distance matrix. The optimization model was built using the Capacitated Vehicle Routing Problem (CVRP) approach, which takes into account vehicle capacity constraints (a maximum of 560 cylinders per truck) and the limited number of available fleets, which is only one truck. The results show that coordinate conversion produces high accuracy in calculating distances between distribution locations. By using Excel Solver, the optimization solution successfully minimizes the total distance traveled compared to the conventional route, where distribution is carried out more evenly to 57 scattered LPG base locations. The addition of Solver Parameters Evolutionary and All Different constraints proved effective in avoiding duplication of visits and producing optimal distribution routes. This solution not only improves distribution time and cost efficiency, but also improves service to customers by reducing delivery delays. The success of this optimization model is expected to be implemented by other distribution companies to improve their operational performance. This study also highlights the importance of selecting the right software to aid the distribution optimization process. Excel Solver, despite its simplicity, proved highly effective in solving complex distribution routing problems, especially when combined with coordinate conversion techniques that yield more accurate distances. Furthermore, the application of the CVRP method enabled more efficient decision-making in determining distribution routes, taking into account vehicle capacity and fleet limitations.
QUALITY CONTROL ANALYSIS TO MINIMIZE THE NUMBER OF DEFECTS IN RATTAN CHAIRS USING THE SIX SIGMA METHOD Syarifatul Annisa; Dwi Retna Sulistyawati
Science and Technology (SciTech) The 3rd National Seminar and Proceedings Scitech 2024
Publisher : Science and Technology (SciTech)

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

PT XYZ is a company in the furniture industry. PT XYZ strives to maintain and improve the quality of their products in order to complete in the global market. Therefore, this research was conducted to find and analyze the company’s quality control process to identify the main causes of decreased product quality. This research uses six sigma with the Define, Measure, Analyze, Improve (DMAI) approach. The purpose of this research is to determine the factors that cause product quality, and determine improvements that can be made to improve the quality of rattan chair products. This research results showed that there were 4 types of defects that occured, namely defective wood with a percentage of 36%, untidy finishing with a percentage of 41%, untidy rattan with a percentage of 10% and cracked wood with a percentage of 13%. From the results of data processing at the measurement stage, the DPMO value was 56250,00 with a sigma level of 3,13, which means six sigma perfomance is equivalent to 93,32%. In this way, the company is expected to continue to make improvements and improve quality.
Co-Authors Ahmad Naja Abadi Ahmad Syukron Lail Zam Zam Alingga Anisful Laili Cahyono, Kevin Decky Rochmanto Desti Setiyowati Dyah Ayu Nurwidyaningsih Fitroh, Qorry Aina Gun Sudiryanto Gunawan Mohammad Gunawan Mohammad Heri Poerbantoro Indra Kurniawan Kausar, Alfin Lutfi Nur Haryana Ihsan Mahmud Basuki Maulida Azizan Najwa Mohammad, Gunawan Muhammad Choiru Zulfa Noor Nailie Azzat Poerbantoro, Heri Praptono, Sri RITA ANDINI Rita Andini Sarwido Sarwido Shodiqin, Ezza Afdlol Maulana Sofyan Assauri Sri Praptono Sukamto Sukamto Sukamto Sukamto Susila, Dwi Agus Syarifatul Annisa Tri Handayani Tri Handayani Tristan Alfian