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OPTIMALISASI PERENCANAAN PRODUKSI PUPUK PHOSKA DENGAN METODE DYNAMIC PROGRAMMING PADA PT GRESIK NUSANTARA FERTILIZER
Get PDFIndonesia's agricultural sector plays a crucial role in ensuring food security and bolstering the national economy. A major challenge, however, is the declining quality of land due to the unregulated use of chemical fertilizers. PT Gresik Nusantara Fertilizer addresses this issue by producing soil-enhancing fertilizers. Their main offerings include GNF Mutiara, GNF SP-36, and GNF Phoska, which aim to enhance soil health and increase agricultural yields. The company operates with a continuous production system, where raw materials represent the most significant expense due to their variety and volume. Labor costs arise from worker wages involved in tasks like mixing, granulating, and packaging. Energy costs, especially electricity, are critical for operating production machinery, particularly during the drying phase using a rotary dryer. Packaging costs entail the use of sacks for distributing the fertilizer to markets. To effectively manage these components and minimize resource waste, a strategy is needed to optimize production and maintain cost-efficiency. This study employs Dynamic Programming (DP) to enhance the use of raw materials in producing Phoska fertilizer. This method helps determine the optimal mix of raw materials by considering potential price variations, thereby promoting more efficient production. Additionally, forecasting techniques are utilized in the study to predict fertilizer demand based on historical data
Pengaruh Kombinasi Pupuk N, P dan K Dan Konsentrasi Paclobutrazol Terhadap Pertumbuhan Dan Hasil Tanaman Padi (Oryza Sativa) Varietas Inpari 32
Get PDFRice (Oryza sativa L.) is a staple commodity and the primary source of
carbohydrates for the people of Indonesia. However, rice productivity in Indonesia
remains relatively low compared to other major rice-producing countries. This
study aimed to determine the optimal combination of paclobutrazol concentration
and NPK fertilizer for improving the growth and productivity of rice plants. The
research was conducted from December 2024 to February 2025 in Ngraho Village,
Bojonegoro Regency, East Java. A Split Plot Design (RPT) was used with two
treatment factors: paclobutrazol concentration (P) as the subplot and fertilizer
combination (N) as the main plot. There were 16 treatment combinations, each
repeated 3 times, resulting in a total of 48 experimental units. The best treatment
combination was Urea (600 kg/ha) + SP36 (300 kg/ha) + KCl (200 kg/ha) +
paclobutrazol at 600 ppm. This combination produced the most favorable results in
terms of plant height, number of leaves, flowering time, number of panicles per
clump, and dry grain yield per hectare. The treatment had a significant effect and
is recommended for application in rice cultivation, particularly in areas with
similar agroclimatic conditions. Further research in different locations and
planting seasons is necessary to evaluate the consistency of these results.
Keywords: Nitrogen, potassium, phosphorus, PGRs, retardan
Analisis Manajemen Strategi Berdasarkan SWOT (Strength, Weakness, Opportunity, dan Threat) dalam Perencanaan dan Pengembangan Manusia pada PT Terminal Petikemas Surabaya
Get PDFPT Terminal Petikemas Surabaya is a state-owned company engaged in international and domestic container handling services based in Surabaya, East Java. In improving service quality, especially in improving container flow, PT Terminal Petikemas Surabaya conducts human resource planning and development, which is one of the important factors. This study analyses the factors that influence human resource planning and development in order to achieve optimal strategic management. The method used for strategic management is the SWOT method (Strength, Weakness, Opportunity, and Threat). This research was conducted through field observations, interviews and the distribution of questionnaires to employees involved in human resource planning and development. The research results show that the calculations of the Internal Factor Strategy Analysis and External Factor Strategy Analysis matrices indicate that the values obtained are 0.15 and 0.17 respectively, which places PT Terminal Petikemas Surabaya's factors in Quadrant I, indicating that the strengths and opportunities are the strongest factors in strategy determination. Therefore, the strategy implemented is an aggressive or expansionary strategy
PERANCANGAN VIDEO EDUKASI TENTANG STOP EKSPLOITASI ANAK UNTUK ORANG TUA DENGAN ANAK USIA DI BAWAH 13 TAHUN
No full textThe issue of child exploitation in Indonesia remains a serious concern. Thousands of cases are recorded each year, covering various forms of exploitation, ranging from economic, sexual, to social. Children who become victims often experience long-term effects on their physical and mental health. On the other hand, the role of parents as the primary protectors of children is not yet fully optimized, with many not fully understanding how to prevent and address this exploitation. Based on a survey conducted, educational video content is considered an effective approach to enhancing social understanding, particularly among parents, regarding this issue.
The design process for this educational video was carried out using both qualitative and quantitative approaches. Data collection involved interviewing representatives from relevant government agencies, psychologists, and child protection practitioners, as well as conducting a community survey to map the existing level of understanding. Additionally, a study was conducted on existing educational materials as a reference. Data analysis was performed using the 5W+1H method and a fishbone diagram to formulate targeted messages. Visual and narrative concepts were then developed based on the synthesis of these results.
The resulting video is a documentary with a maximum duration of 15 minutes, featuring content that evokes empathy and provides practical information on preventing child exploitation. Visual design prioritizes a warm tone, a simple yet impactful narrative flow, and design elements accessible to the target audience—parents. The production process involves validation by stakeholders to ensure the messages conveyed are appropriate and accurate.
Through this educational video, it is hoped that the public, especially parents, can better understand their important role in preventing child exploitation. Beyond serving as an information medium, the video is expected to foster critical awareness and encourage sustainable behavioral change. This project represents a small yet meaningful step in the collective effort to create a safe and supportive environment for children's development in Indonesia
SISTEM INFORMASI PELAYANAN ADMINISTRASI TERPADU CIVITAS AKADEMIK DENGAN PENDEKATAN HYBRID WATER-SCRUM-FALL
No full textDigital transformation in higher education institutions demands the implementation of modern, efficient, and integrated administrative service systems. The increasing need among students for various administrative services—such as internship recommendation letters, academic transcripts, and account management for administrative staff—highlights the importance of a centralized digital system. This study aims to develop an Integrated Academic Administrative Service Information System (SIPATCA) that facilitates the digital management of administrative processes for students, administrators, and super administrators.
The system development method applied is a hybrid Water-Scrum-Fall approach, combining the strengths of the Waterfall and Scrum models. This method was selected to ensure detailed planning and documentation at the early stages (Waterfall), iterative and flexible development during the implementation phase (Scrum), and controlled deployment in the final stage (Waterfall). The system was built using the PHP programming language with Laravel version 10 framework, and deployed on Niagahoster cloud hosting. Email verification is handled through Gmail SMTP configuration.
Key features of the system include student registration and login via institutional email, submission of internship letters and transcript requests, a guide document management module for administrators, and account management features for super administrators. The system’s source code is structured in a modular fashion based on user roles. The development process also involved version control through GitHub and deployment using Niagahoster’s cPanel interface.
The resulting system is expected to improve the speed, transparency, and documentation of academic administrative services, transitioning from manual workflows to an efficient digital platform. SIPATCA is envisioned as a relevant solution to support digital transformation in academic institutions and to enhance the overall quality of internal services for the academic community
Pondok Pesantren Berbasis Deaf Space Architecture di Surabaya
Get PDFMenuntut ilmu adalah kewajiban yang tidak dapat ditawar bagi umat Islam, termasuk mereka yang memiliki keterbatasan fisik, seperti difabel tunarungu. Untuk menggugurkan kewajiban belajar memerlukan sebuah wadah yang tepat. Pondok pesantren, sebagai salah satu lembaga pendidikan Islam tertua di Indonesia, dirasa sebagai wadah yang tepat untuk memainkan peranan kunci sebagai wadah tempat belajar dalam membentuk moral dan spiritual generasi muda. Sayangnya, dengan banyaknya jumlah pondok pesantren di Indonesia sangat minim sekali pondok pesantren yang khusus untuk menaungi difabel tunarungu. Terlebih Provinsi Jawa Timur yang sama sekali tidak memiliki pondok pesantren khusus tunarungu. Padahal Provinsi Jawa Timur termasuk provinsi dengan jumlah tunarungu yang tinggi, dengan menyumbang angka 17% dari penyandang tunarungu se-Indonesia. Proyek ini mengusulkan perancangan pondok pesantren difabel tunarungu di Jawa Timur dengan penerapan pendekatan Deaf Space Architecture yang dirancang khusus untuk memenuhi kebutuhan komunikasi dan perilaku difabel tunarungu. Tujuan dari perancangan ini adalah menciptakan pondok pesantren yang tidak hanya berfungsi sebagai tempat belajar, tetapi juga sebagai tempat tinggal yang nyaman untuk tumbuh dan belajar bagi santri tunarungu. Dengan fasilitas yang tepat, diharapkan mereka dapat mengembangkan potensi diri, memiliki akhlak yang baik, serta mampu berpartisipasi aktif dalam kehidupan bermasyarakat setelah lulus dari pesantren
Analisis Potensi Likuifaksi Pada Proyek Pembangunan Tol Yogyakarta STA 55+200 – 55+650 Berdasarkan Data SPT dengan Variasi Magnitudo Gempa
Get PDFYogyakarta is one of the regions prone to liquefaction. The 2006 earthquake in Yogyakarta, with a magnitude of 6.2, triggered liquefaction in the districts of Bantul, Sleman, and Klaten. Liquefaction is a condition in which solid ground loses its strength and behaves like a liquid. This study analyzes liquefaction potential using the methods of Youd & Idriss (2001), Idriss & Boulanger (2008), and the Hyperbolic Function method (2012) at points BH – 98 and BH – 101, with varying earthquake magnitudes, based on SPT data and sieve analysis results. The findings indicate that at BH – 98, which is dominated by sandy soils, the highest liquefaction potential occurs at depths of 3 – 5 m, 15 m, and 21 m during a magnitude 7 earthquake. At BH – 101, where the soil consists mainly of sandy and clayey types, significant liquefaction potential is found at depths of 3 – 9 m and 19 – 21 m under the same magnitude. Further analysis shows that the order of safety factor values from lowest to highest which corresponds to liquefaction potential from highest to lowest is: Idriss & Boulanger (2008), Hyperbolic Function (2012), and Youd & Idriss (2001)
Pengaruh Financial Literacy, Financial Attitude, Dan Perceived Risk Terhadap Financial Management Behavior Dalam Penggunaan Buy Now Pay Later (BNPL) (Studi Kasus: Gen Z Dan Milenial Di Surabaya)
Get PDFABSTRAK
Penelitian ini bertujuan menganalisis pengaruh financial literacy, financial attitude dan perceived risk terhadap financial management behavior pengguna BNPL melalui pendekatan kuantitatif. Populasi penelitian mencakup Generasi Z dan Milenial (20–34 tahun) pengguna BNPL di Surabaya. Teknik pengambilan sampel yang digunakan yaitu random sampling dan diperoleh 166 responden. Data dikumpulkan melalui kuesioner online (Google Form), kemudian dianalisis menggunakan Partial Least Square Structural Equation Modeling (PLS-SEM). Hasil penelitian mengungkapkan bahwa financial literacy, financial attitude dan perceived risk berpengaruh terhadap financial management behavior pada pengguna BNPL di kalangan generasi Z dan Milenial Surabaya. Semakin baik
financial literacy, financial attitude dan perceived risk maka akan mendorong financial management behavior yang lebih rasional, bijaksana dan terkendali saat memanfaatkan BNPL. Kontribusi penelitian ini memperkaya literatur terkait penerapan financial management behavior yang bijak dalam penggunaan BNPL dan memberikan masukan bagi pemerintah maupun penyedia layanan untuk perumusan regulasi yang mendukung efektivitas pengembangan fintech BNPL.
Kata Kunci : Financial Management Behavior, Financial Literacy, Financial Attitude, Perceived Risk, Buy Now Pay Later.
ABSTRACT
This study aims to analyze the influence of financial literacy, financial attitudes, and perceived risk on the financial management behavior of BNPL users through a quantitative descriptive approach. The study population includes Generation Z and Millennials (aged 20–34) who are BNPL users in Surabaya. The sampling technique employed was random sampling, resulting in 166 respondents. Data was collected via an online questionnaire (Google Form) and analyzed using Partial Least Squares-Structural Equation Modeling (PLS-SEM). The study results revealed that financial literacy, financial attitudes, and perceived risk influence financial management behavior among BNPL users in the Generation Z and Millennial populations in Surabaya. The better the financial literacy, financial attitudes, and perceived risk, the more it encourages rational, wise, and controlled
financial management behavior when utilizing BNPL. This research contributes to the literature on the application of prudent financial management behavior in the
use of BNPL and provides input for the government and service providers in formulating regulations that support the effective development of BNPL fintech.
Keywords : Financial Management Behavior, Financial Literacy, Financial Attitude, Perceived Risk, Buy Now Pay Later
Prediksi Penjualan Strapping Band Pada PT. Powerpack Industrial Solution Menggunakan Optimasi Grid Search Pada Model XGBoost.
Get PDFPT. Powerpack Industrial Solution, operating in the field of industrial solutions supply, particularly strapping band products, faces challenges in predicting fluctuating sales, which can lead to overstock or stockout conditions, resulting in increased operational costs and decreased customer satisfaction. The main problem addressed is the inaccuracy in forecasting strapping band demand due to high market fluctuations and the complexity of historical sales data. To overcome this issue, this study proposes the use of an Extreme Gradient Boosting (XGBoost) model optimized through Grid Search technique to improve sales prediction accuracy. The method involves applying the XGBoost model combined with systematic hyperparameter tuning using Grid Search, based on sales data consisting of dates, product types, and quantities sold. Model evaluation is conducted using the Mean Absolute Percentage Error (MAPE) metric to assess prediction accuracy. The urgency of this research lies in the critical need for accurate demand forecasting to optimize inventory management, thus minimizing the risk of overstock and stockout while enhancing operational efficiency.
The innovation introduced in this study is the application of Grid Search optimization to the XGBoost model in the context of strapping band sales prediction, a topic that has been scarcely explored in the packaging and distribution industry. This research addresses a gap in the literature by providing a more efficient, data-driven solution for inventory management in manufacturing and distribution companies. The results show that after optimization, the XGBoost model successfully reduced the MAPE from 9.59% to 7.12%, leading to improved prediction accuracy and more effective stock management for the company.
Keywords: : Grid Search, Overstock, Stockout, Strapping Band, Xgboost Mode