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Journal articles on the topic 'Northwest Corner Method'

Author: Grafiati

Published: 3 June 2025

Last updated: 19 July 2025

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1

Rahmasari, Intan Ayu, Yani Ramdani, and Farid Hirji Badruzzaman. "Optimasi Biaya Transportasi Pengiriman Air Minum Kemasan Menggunakan Metode Nortwest Corner, Vogels Approximation dan Stepping Stone." Bandung Conference Series: Mathematics 1, no. 1 (2021): 15–24. http://dx.doi.org/10.29313/bcsm.v1i1.14.

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Abstract. This research was conducted at PD. X is one of the companies that distributes bottled drinking water products in the city of Bandung and its surroundings and does not yet have a permanent transportation cost optimization calculation technique that can result in high distribution costs. These problems can be formulated in the transportation model. The method used to determine the initial feasible solution is Northwest Corner and Vogels Approximation, while determining the optimum solution using Stepping Stone. The results of the initial feasible solution calculation show that the numb

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Hasbiyati, Ihda, M. Abdullah, Roni Salambue, and Ahriyati Ahriyati. "NORTHWEST CORNER METHOD FOR NATURAL DISASTER NOTIFICATION." BAREKENG: Jurnal Ilmu Matematika dan Terapan 16, no. 1 (2022): 271–80. http://dx.doi.org/10.30598/barekengvol16iss1pp269-278.

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Indonesia is a country that is prone to disasters such as earthquakes, floods, landslides, volcanic eruptions to whirlwinds. About 13 percent of the world's volcanoes in Indonesia has the potential to cause natural disasters with different strengths. Therefore, the government needs to take action quickly. One alternative that affects the speed of aid reaching the disaster area is transportation. In channeling natural disasters is still far from ideal, on the other hand the main object of the emergency response period is how to alleviate the burden of people affected by the disaster. So that it

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Andriani, Poppy, and Hendra Cipta. "Optimasi Biaya Distribusi Kusen Pintu Menggunakan Model Transportasi Northwest Corner Method, Russel Approximation Method, dan Stepping Stone." JURNAL MEDIA INFORMATIKA BUDIDARMA 7, no. 1 (2023): 58. http://dx.doi.org/10.30865/mib.v7i1.5224.

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The transportation method is a method used to calculate distribution costs based on the origin that provides the same products to the destination location optimally using minimum costs. Previously, Cv Prima had to pay Rp 72,356,720 for transportation costs. So that the CV Prima company experienced swelling in distribution costs. Expenses for excess distribution costs result in the quality of door frame delivery not being optimal. In this study, the Northwest Corner Method and the Russell Approximation Method were used as the initial solution and continued with the Stepping Stone method as the

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Movchan, T., V. Artеmov, and D. Bulysheva. "THE USE OF LINEAR PROGRAMMING TECHNIQUES TO OPTIMIZE FARM SIZE." Аграрний вісник Причорномор'я, no. 94 (December 25, 2019): 93–100. http://dx.doi.org/10.37000/abbsl.2019.94.14.

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It is recommended to implement forecasting management models in the area of land use and protection by applying linear programming methods to optimize the size of farms, which land is located in different natural and economic zones. Analysis and assessment of land use in natural-economic zones is a type of management activity for deep understanding of the dialectic of a managed object development and true assessment of its moving forces. This enables to simulate the situation of land use, to identify a specific goal, to choose the means to achieve it and to obtain the optimum result. The imple

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Agboola, Olasunmbo O., Deborah T. Obembe, and Michael C. Agarana. "Application of Swarm Intelligence in Transportation System Optimisation." WSEAS TRANSACTIONS ON INFORMATION SCIENCE AND APPLICATIONS 22 (December 20, 2024): 74–82. https://doi.org/10.37394/23209.2025.22.8.

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Swarm intelligence is a branch of artificial and natural intelligence that studies systems with many characters that manage their activities through distributed control and self-organisation. The field focuses on the actions of social insects such as fish schools, bird flocks, ants, termites, bees, and wasp colonies. Particle swarm optimisation (PSO) and ant colony optimisation (ACO) are two of the most common systems reported by swarm intelligence. Ant Colony Optimization (ACO) is a probabilistic method used to find optimal pathways in computationally complex situations by condensing the prob

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Et. al., Chandrasekhar Putcha,. "A Comprehensive Method for Arriving at Initial Feasible Solution for Optimization Problems in Engineering with Illustrative Examples." Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 5 (2021): 1189–205. http://dx.doi.org/10.17762/turcomat.v12i5.1785.

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Two methods have been used extensively for arriving at initial basic feasible solution (IBF). One of them is Northwest corner rule and the other on is Russell method (Hillier & Lieberman, 2005.) Both methods have drawbacks. The IBF obtained is either far from optimal solution or does not have adequate number of entries to initiate transportation simplex algorithm. The Northwest Corner rule gives an initial feasible solution that is far from optimal while the IBF solution obtained using Russell method doesn’t give enough number of entries to start the transportation simplex algorithm. Hence

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Yuliana, Yuliana, Tasari Tasari, Anita Setiyaningsih, Fika Aisyah Munif, and Miftacha Febriani Putri. "Optimalisasi Biaya Transportasi Produk UMKM Naturies Indonesia Dengan Metode Northwest Corner Dan Vogel’s Approximation." Jurnal Derivat: Jurnal Matematika dan Pendidikan Matematika 9, no. 2 (2022): 246–57. http://dx.doi.org/10.31316/jderivat.v9i2.3138.

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Naturies Indonesia is one of the UMKM for spice drinks in Macanan, Klaten, Central Java which is developing. As one of the growing UMKM, Naturies Indonesia is experiencing problems related to the distribution of its products. Naturies Indonesia has incurred transportation costs of Rp.442,100.00 per week in distributing its products to 5 distributors (Kudus, Jakarta, Shopee, Bandung, and offline). Due to human resource constraints, Naturies Indonesia does not yet have a thorough plan to reduce shipping costs in allocating products from production sites to customers or distributors. Through this

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8

Farida Pulansari and Isna Nugraha. "OPTIMASI BIAYA DISTRIBUSI PERUSAHAAN PESTISIDA DENGAN KOMBINASI METODE TRANSPORTASI NORTH WEST CORNER METHOD DAN MODIFIED DISTRIBUTION METHOD BERBASIS POM-QM." WALUYO JATMIKO PROCEEDING 15, no. 1 (2022): 198–204. http://dx.doi.org/10.33005/waluyojatmiko.v15i1.44.

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ABSTRAK Permasalahan umum pada kegiatan transportasi biasanya berhubungan dengan pendistribusian barang atau produk dari beberapa sumber ke beberapa tujuan. Pendistribusian akan memakan biaya yang tinggi dan akan mengakibatkan pemborosan dari aspek waktu, aspek jarak, dan aspek tenaga apabila tidak dikelola dengan baik. Tujuan dari penelitian ini adalah untuk meminimumkan biaya distribusi pestisida Roundup Biosorb dengan mengalokasikan produk secara optimal pada PT. XYZ dengan dengan penerapan metode North West Corner sebagai penyelesaian solusi awal dan metode Modified Distribution seba

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Piopadang, Hilda D. K. Y., Tritiya A. R. Arungpadang, and Charles S. C. Punuhsingon. "MINIMASI BIAYA DISTRIBUSI PRODUK PERTALITE DENGAN MENGGUNAKAN MODEL TRANSPORTASI PADA PT PERTAMINA PATRA NIAGA INTEGRATED TERMINAL BITUNG." Jurnal Tekno Mesin 10, no. 2 (2024): 141–49. https://doi.org/10.35793/jtm.v10i2.59212.

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This study describes the final comparison of the minimum cost of pertalite product distribution and knowing the optimal results of pertalite product distribution costs using the Stepping Stone method and POM-QM software comparison. The type of research used is quantitative research with data processing used is the Northwest Corner Method, the Least Cost Method, and the Vogel Method as the method used as the initial feasible solution. The final solution used to find the optimal solution is the Stepping Stone Method and the use of POM-QM software as a comparison. The distribution cost results ob

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Çakmak, Tanyel, and Filiz Ersöz. "METHODOLOGY RECOMMENDATION FOR ONE‐CRITERION TRANSPORTATION PROBLEMS: CAKMAK METHOD." TRANSPORT 22, no. 3 (2007): 221–24. http://dx.doi.org/10.3846/16484142.2007.9638128.

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Transportation problems (TP) are one of the most prominent fields of application of the mathematical disciplines to optimization and operations research. In general, there are three starting basic feasible solution methods: Northwest Corner, Least Cost Method, VAM – Vogel's Approximation Method. The three methods differ in the quality of the starting basic solution. In this study, we actually show a new method for starting basic feasible solution to one‐criterion‐transportation problems: Çakmak Method. This method can be used for balanced or unbalanced one-criterion transportation problems, an

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Carlini, Ian Maccari De, Mufti Arifin, and Ayu Martina. "Simulation Of C-Check Maintenance Task Card Distribution Using Vogel's Approximation Method." Performa: Media Ilmiah Teknik Industri 24, no. 1 (2025): 29. https://doi.org/10.20961/performa.24.1.85126.

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<p>Maintenance of an aircraft requires reliable and responsible manpower. Manpower and manhour are needed to perform scheduled and unscheduled maintenance. C-Check maintenance requires a long time for the aircraft to operate again. Therefore, it is necessary to optimize the task card in the maintenance personnel group based on the required task card manhour. Simulation of task card distribution is needed to find the optimum C-Check work group. The method in this study uses Vogel's Approximation Method (VAM) as the main calculation and Northwest Corner (NWC) as the comparison, where VAM a

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Rakhim, Ramadhany Aisyah. "OPTIMASI BIAYA TRANSPORTASI DISTRIBUSI BARANG DENGAN MENGGUNAKAN METODE Northwest Corner (NWC)." INFORMAL: Informatics Journal 3, no. 3 (2018): 102. http://dx.doi.org/10.19184/isj.v3i3.10077.

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   The distribution of goods is closely related to the cost of transportation. The transportation method used by the company will have a major impact on the company's profit. If the profit obtained by the company can be maximized, the company will be able to expand its business to become even bigger. The problem solving step is the determination of optimization criteria and optimization model development. These steps are used to optimize the cost of shipping goods to get maximum profit. The research obtained results namely the cost of shipping goods using the company's NWC me

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Atikah, Atikah, Tiara Tiara, and Surya Perdana. "Analisis Biaya Transportasi dalam Pendistribusian Singkong Menggunakan Metode Northwest Corner dan Least Cost." eCo-Fin 6, no. 2 (2024): 258–68. http://dx.doi.org/10.32877/ef.v6i2.1303.

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Transportation plays an important role in supply chain management, where transportation is the process of determining how and when goods should be delivered to consumers. In the transportation method used, it is necessary to consider efficiency and speed in delivering goods. The object of this research is cassava plantations, which are in the Bogor district, especially in the Jonggol, Cariu and Sukamakmur sub-districts. The harvest from this plantation is allocated to 3 factory areas in the Bekasi district. The problem faced is the high transportation costs in allocating the harvest. So, the m

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Sasikala, R.*1 Rugved Manoorkar2 &. Varun Gajendragadkar 3. "SOLVING TRANSPORTATION PROBLEM OF A CAPSULE MANUFACTURER USING PHEROMONE OPTIMIZER AND A HYBRID OF KRUSKAL'S METHOD AND THE NORTHWEST CORNER METHOD." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 8, no. 6 (2019): 24–49. https://doi.org/10.5281/zenodo.3240260.

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Associated Capsules is a well known manufacturer of capsules, which provides the same to many pharmaceutical companies based in India. They use the help of Swift Transportation Pvt. Ltd., a transportation company, to transport these capsules to different parts of Western India. They use one truck, a large one at that, to transport this. Transportation is a very costly affair. The transportation model is a special class of the linear programming problem. It deals with the situation in which a commodity is shipped from sources to destinations. The objective is  to be determined the amounts

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Azizah, Nuril Lutvi. "Mathematical Modelling On Transportation Method Apllication For Rice Distribution Cost Optimization." CAUCHY 5, no. 4 (2019): 195. http://dx.doi.org/10.18860/ca.v5i4.4893.

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<p>RASKIN/RASTRA is a rice distribution program for the poor family with the aim of improving food security starting from the household scale. The Aim of this study is to determine whether the mathematics modelling can use in the transportation methods to provide an efficient solution of costs on the rice distribution in the region of Sidoarjo. The method used in this research is the NWC (Northwest Corner) method used to analyze the initial fiscal solution, and refined by MODI (Modified Distribution) to analyze the most optimal cost. From the calculation by transportation method, the opt

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Liu, Yuanyuan, and Wendi Li. "Error bounds for augmented truncation approximations of Markov chains via the perturbation method." Advances in Applied Probability 50, no. 2 (2018): 645–69. http://dx.doi.org/10.1017/apr.2018.28.

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AbstractLetPbe the transition matrix of a positive recurrent Markov chain on the integers with invariant probability vectorπT, and let(n)P̃ be a stochastic matrix, formed by augmenting the entries of the (n+ 1) x (n+ 1) northwest corner truncation ofParbitrarily, with invariant probability vector(n)πT. We derive computableV-norm bounds on the error betweenπTand(n)πTin terms of the perturbation method from three different aspects: the Poisson equation, the residual matrix, and the norm ergodicity coefficient, which we prove to be effective by showing that they converge to 0 asntends to ∞ under

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Mohammad, Abdur Rob, and Abdul Alim Mohammad. "Transportation Analysis using Different Strategies to Minimize the Cost of the Commodity." Journal of Applied Mathematics and Statistical Analysis 3, no. 2 (2022): 1–9. https://doi.org/10.5281/zenodo.6812805.

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<em>The Transportation Problem (TP) is a special type of Linear Programming problem (LPP) that deals with the distribution of individual products from various origins of resources to different destinations of need while minimizing the entire Transportation cost. In this article, we explore how to resolve TP problems with the least cost of the commodity. Northwest, Matrix Minimum and Vogel’s Approximation methods are executed to get the minimum cost. Computer simulations were used to analyze the steps of the various approaches of solution processes. The solution technique is presented wit

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Hasanah, Tatun Uswatun, Puji Utami, and Muchammad Fauzi. "Pengoptimalan Biaya Transportasi dengan Metoda North West Corner (NWC) dan Stepping Stone (SS) untuk Distribusi Produk Farmasi." Jurnal Teknik Industri: Jurnal Hasil Penelitian dan Karya Ilmiah dalam Bidang Teknik Industri 6, no. 1 (2020): 34. http://dx.doi.org/10.24014/jti.v6i1.9468.

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Model transportasi diadopsi untuk pengendalian operasi pabrik, penentuan daerah penjualan, pengalokasian lokasi distribusi dan pergudangan. PT. XYZ adalah salah satu perusahaan multinasional yang memiliki core business dibidang industry farmasi. Model optimasi merupakan salah satu model analisis sistem yang diidentikkan dengan operation research. penelitian ini menggunakan Northwest corner method (NWC)untuk memberikan prioritas pengalokasian dari pojok kiri atas matriks transportasi. Stepping Stone Method (SS) merupakan lanjutan dari NWC untuk mendapatkan solusi optimal dengan total biaya tere

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Pokalas, Tal Mark, Anayo Charles Iwuji, Uchendu Kingsley, Chisimkwuo John, and Ajaegbu Henry. "A NEW DUAL HEURISTIC ALGORITHM FOR FINDING THE INITIAL BASIC FEASIBLE SOLUTION FOR A TRANSPORTATION PROBLEM." FUDMA JOURNAL OF SCIENCES 8, no. 4 (2024): 382–90. http://dx.doi.org/10.33003/fjs-2024-0804-2330.

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Because determining the best initial basic feasible solution (IBFS) for a transportation problem is so crucial, numerous authors have expended a great deal of energy developing effective algorithms that will result in the lowest possible cost of moving products from a given source to a destination. The goal of this work was to develop an efficient dual algorithm for finding an initial basic feasible solution to a transportation problem (TP). Two distinct algorithms that produce the same IBFS make up our suggested approach. Compared to some popular methods in the literature, Using four numerica

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Khamroeva, Dilafruz. "Interval Potential Method for Solving Transportation Problems Using Mathematical Programming." International Journal of Human Computing Studies 7, no. 1 (2025): 1–6. https://doi.org/10.31149/ijhcs.v7i1.5355.

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This study explores the interval variant of the potential method as an innovative approach for solving transportation problems within mathematical programming. Traditional methods often fail to address the complexities arising from parameter uncertainties, creating a knowledge gap in deriving reliable solutions under varying conditions. To bridge this gap, the interval potential method is proposed, utilizing interval matrices to define constraints and feasible solutions. The methodology involves constructing the initial transportation plan using the northwest corner method and applying interva

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Soneda, Ahmad Surya, and Yetty Dwi Lestari. "Analysis of Vehicle Operating Cost Efficiency in IECO Trans Company Using Transportation Methods." Southeast Asian Business Review 1, no. 1 (2023): 79–98. http://dx.doi.org/10.20473/sabr.v1i1.48990.

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This research arose because of problems with travel costs, which the company judged were not optimal, and the profits obtained by the company were also not optimal. This research was taken from a case study at the IECO Trans company. This study aims to achieve the efficiency of the IECO Trans Company using the Transportation method. The method used from the transportation method is the northwest corner, the least cost combination, and the Vogel Approximation Method (VAM). This study uses qualitative research methods. Two data are used in this study: primary, taken from interviews and company d

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AINI, SRI BADRUL, ANDINI PUTRI Z, ANNISA ANNISA, QUR’AYNA PERMATA SUCI, and AHMAD ALBAR TANJUNG. "OPTIMASI BIAYA TRANSPORTASI PENGIRIMAN AIR MINUM KEMASAN PADA PT TIRTA SARI SUMBER MURNI." Journal of Management and Innovation Entrepreneurship (JMIE) 1, no. 2 (2024): 54–61. http://dx.doi.org/10.59407/jmie.v1i2.304.

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Menghadapi tantangan globalisasi dan persaingan sengit di sektor industri air minum kemasan, optimisasi biaya transportasi menjadi faktor penting untuk distribusi produk yang efisien. Penelitian berjudul "Optimasi Biaya Transportasi Pengiriman Air Minum Kemasan pada Pt Tirta Sari Sumber Murni” membahas terkait peningkatan upaya efisiensi operasional dan pengurangan biaya logistik melalui alokasi produk yang optimal melalui Stepping-Stone Method, Northwest Corner Method dan Vogels Approximation Method. Penelitian ini bertujuan mengoptimalkan biaya transportasi dari dua gudang ke berbagai toko,

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Mitlif, Rasha J. "Fuzzy Transportation Model Technique to Determine the Minimum Total Cost Using a Novel Ranking Function." Ibn AL-Haitham Journal For Pure and Applied Sciences 36, no. 1 (2023): 318–24. http://dx.doi.org/10.30526/36.1.2991.

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The transportation problem (TP) is employed in many different situations, such as scheduling, performance, spending, plant placement, inventory control, and employee scheduling. When all variables, including supply, demand, and unit transportation costs (TC), are precisely known, effective solutions to the transportation problem can be provided. However, understanding how to investigate the transportation problem in an uncertain environment is essential. Additionally, businesses and organizations should seek the most economical and environmentally friendly forms of transportation, considering

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Sugianto, Welly, and Elva Susanti. "Optimasi OPTIMASI BIAYA TRANSPORTASI PADA UKM DI KOTA BATAM." Inaque : Journal of Industrial and Quality Engineering 9, no. 1 (2021): 1–19. http://dx.doi.org/10.34010/iqe.v9i1.4278.

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This research was conducted at UKM Jovelyn in Batam city. Jovelyn's UKM produces various kinds of cakes and is marketed in markets in Batam City. The UKM opened 4 branches and marketed its products to 7 markets in the city of Batam. Product distribution is still random and not properly regulated. This resulted in a very large transportation cost, up to 1/3 of the total production cost. This shows that product transportation is still not carried out effectively and efficiently. The transportation problem is converted into a mathematical form so that the problem can be solved by the transportati

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Chairat, Arief Suardi Nur, Ade Caswito, Lia Nur Octavia, Nur Shania Asnul, Annisa Fauziah, and Alisya Sulifianti Bahasoan. "Optimization of soybean distribution costs with the transportation method: a case in SME’s." Operations Excellence: Journal of Applied Industrial Engineering 16, no. 1 (2024): 14. http://dx.doi.org/10.22441/oe.2024.v16.i1.098.

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The distribution of soybean raw materials is not only related to aspects of quality and smooth production of tofu making but can also influence cost efficiency to increase competitiveness. In this situation, the number of soybeans shipped, transportation costs per unit, and the choice of transportation service used are transportation model issues. This research aims to determine the cheapest cost of sending soybean raw materials from four agent locations to three tofu factory locations with a choice of two transportation services that can be adopted. The case studied is a case of unbalanced tr

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Alzahrani, Abdullah M. Y. "MITIGATION OF WASTE TRANSPORTATION COSTS IN TAIF PROVINCE, SAUDI ARABIA." Rudarsko-geološko-naftni zbornik 37, no. 5 (2022): 159–67. http://dx.doi.org/10.17794/rgn.2022.5.13.

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Municipal solid waste (MSW) management is a critical issue in the Kingdom of Saudi Arabia (KSA). Management of solid waste in crowded conditions, especially in main cities such as the Al-Taif Province. This paper deals with that case study and focuses on how to solve material handling problems by applying conventional methods and computer ability. One of the costliest operations in the civil sector is transportation for material handling. City mayors considered transportation and materials handling as a subclass of the linear programming technique, thus linear programming problems take into co

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Ochoa-Beltrán, Angélica, Johanna Andrea Martínez-Villa, Peter G. Kennedy, Beatriz Salgado-Negret, and Alvaro Duque. "Plant Trait Assembly in Species-Rich Forests at Varying Elevations in the Northwest Andes of Colombia." Land 10, no. 10 (2021): 1057. http://dx.doi.org/10.3390/land10101057.

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Andean forests are home to a strikingly high diversity of plants, making it difficult to understand the main drivers of species assembly. Trait-based approaches, however, help overcome some challenges associated with high taxonomic complexity, providing insights into the main drivers of species coexistence. Here, we evaluated the roles of climate, soil fertility, and symbiotic root associations on shaping the assembly of six plant functional traits (leaf area, specific leaf area, dry leaf matter content, leaf thickness, leaf toughness, and wood density) along an elevational gradient in the spe

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Sycheva, Naylya. "The source parameters of earthquakes of Bishkek geodynamic proving ground (Northern Tien Shan)." EPJ Web of Conferences 254 (2021): 02016. http://dx.doi.org/10.1051/epjconf/202125402016.

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Based on the method of polarity of signs of P-waves, the focal mechanisms of 1674 earthquakes with M ≥ 1.6, which occurred on the territory of the Bishkek geodynamic proving ground (BGPG) from 1994 to 2020, were determined. Some characteristics of the complete catalogue are presented. Quantitative distributions by the type of mechanisms and diagrams of azimuths of the main stress axes are constructed. A variety of focal mechanism of earthquake is observed, most of them are reverse fault, oblique reverse fault, and horizontal strike-slip fault. The compression axis for most of the events has a

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Nigro, Melissa A., and John J. Cassano. "Identification of Surface Wind Patterns over the Ross Ice Shelf, Antarctica, Using Self-Organizing Maps." Monthly Weather Review 142, no. 7 (2014): 2361–78. http://dx.doi.org/10.1175/mwr-d-13-00382.1.

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Abstract The interaction of synoptic and mesoscale circulations with the steep topography surrounding the Ross Ice Shelf, Antarctica, greatly influences the wind patterns in the region of the Ross Ice Shelf. The topography provides forcing for features such as katabatic winds, barrier winds, and barrier wind corner jets. The combination of topographic forcing and synoptic and mesoscale forcing from cyclones that traverse the Ross Ice Shelf sector create a region of strong but varying winds. This paper identifies the dominant surface wind patterns over the Ross Ice Shelf using output from the W

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Xue, Hua, Min Du, Fanxiang Zeng, et al. "Acoustic Rapid Detection Technology and Its Application for Rare Earth Element (REE)-Rich Sediments in the Pigafetta Basin of the Western Pacific." Journal of Marine Science and Engineering 12, no. 8 (2024): 1283. http://dx.doi.org/10.3390/jmse12081283.

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This study aims to investigate the stratigraphic features and rare earth element (REE) mechanisms of deep-sea REE-rich sediments in the West Pacific Pigafetta Basin using acoustic rapid detection technology. Through an analysis of sub-bottom profile data and synthesis of existing studies, this study reveals the acoustic properties and thickness distribution of the REE-rich sediments. Acoustic spectral records identify three distinct acoustic facies: opaque (O), transparent (T), and laminated (L). This study maps the thickness and spatial distribution of the REE-rich sediment layer in the resea

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Xin Ying, Felicia Lim, and Suliadi Firdaus Sufahani. "Benchmarking Metaheuristic Algorithms Against Optimization Techniques for Transportation Problem in Supply Chain Management." Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) 9, no. 3 (2025): 455–64. https://doi.org/10.29207/resti.v9i3.6513.

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The optimization of transportation problems plays a significant role in supply chain management (SCM), where minimizing costs and improving efficiency are mandatory. The transition from manual methods to advanced computational approaches, such as metaheuristic algorithms, enhances decision-making and consolidates operations within SCM. Malaysia's transportation system has been confronting crucial challenges, characterized by congested roadways, limited rail connectivity and inefficient port operations, which interfere with the fluidity of goods and supply chain efficiency. This highlights the

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Fauzi, Septiana, and Abdul Fatah. "ANALISIS PENDISTRIBUSIAN AIR BERSIH MENGGUNAKAN METODE TRANSPORTASI DI IPA PURWAHARJA PERUMDAM TIRTA ANOM." Sistemik : Jurnal Ilmiah Nasional Bidang Ilmu Teknik 10, no. 2 (2022): 81–85. http://dx.doi.org/10.53580/sistemik.v10i2.79.

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Kenaikan jumlah penduduk Kota Banjar ke depan dapat mempengaruhi kenaikan dari jumlah pelanggan air bersih di IPA Purwaharja Perundam Tirta Anom, sekaligus juga dapat meningkatkan konsumsi air bersih di Kota tersebut. Oleh karena itu diperlukan analisa terhadap jalur pendistribusian air bersih yang efektif agar semua pelanggan bisa terpenuhi kebutuhannya dengan biaya distribusi yang rendah. Adapun metode yang digunakan dalam penelitian ini adalah metode Transportasi. Pemecahan solusi awal menggunakan Northwest Corner Method, Least Cost Method, dan Vogel’s Approximation Method. Metode Vogel’s m

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Pires, A. C. B., and N. Harthill. "Statistical analysis of airborne gamma‐ray data for geologic mapping purposes: Crixas‐Itapaci area, Goias, Brazil." GEOPHYSICS 54, no. 10 (1989): 1326–32. http://dx.doi.org/10.1190/1.1442592.

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Q‐mode factor analysis, K‐means clustering, and G‐mode clustering were used on digitized gamma‐ray spectrometer data from an aerial survey of the Crixas‐Itapaci area, Goias, Brazil. The data points including seven variables—eU, eTh, K, total count, U/Th, U/K, and Th/K—were digitized for a 2 km square grid. For the northwest corner of the area the data were gridded at 1 km. The Q‐mode classification method supplied results that do not show a good correspondence with the known geology. The K‐means clustering procedure barely identified the main lithologic features of the area. The G‐mode techniq

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Bayu Setyawan, Erlangga, Nia Novitasari, and Aulia Dihas Zahira. "Development of Automatic Object Detection and IoT for Garbage Pickup Assignment Problem." JOIV : International Journal on Informatics Visualization 8, no. 2 (2024): 794. http://dx.doi.org/10.62527/joiv.8.2.2740.

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Waste management remains a challenge in certain cities, particularly in allocating fleets responsible for collecting garbage from temporary disposal sites. Inadequate planning can lead to the accumulation of substantial waste piles. This study aims to enhance truck assignment by considering truck capacity and the collection route. The assignment process incorporates the fundamental concept of the transportation problem, precisely the northwest corner method. The volume of waste transported aligns with the resident or industrial population within the designated service area. The waste generatio

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Lestari, Siti Lestari, Ardiansyah Ardiansyah, Angelina Puput Giovani, and Desy Dwijayanti. "A DIJKSTRA ALGORITHM IMPLEMENTATION IN DETERMINING SHORTEST ROUTE TO MOSQUE IN RESIDENTIAL CITRA INDAH CITY." Jurnal Pilar Nusa Mandiri 16, no. 1 (2020): 65–70. http://dx.doi.org/10.33480/pilar.v16i1.1199.

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The application of artificial intelligence (Artificial Intelligence) for problem-solving in the field of computer science has experienced rapid development from year to year as the development of artificial intelligence itself. Problems involving searching (searching) is one example of the use of artificial intelligence that is quite popular to solve various kinds of problems. In daily activities, the use of roads is always an unavoidable activity, so determining the shortest path from one point to another becomes a problem that is often encountered. This is also felt by residents who live in

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Murgani, Ramli. "Optimasi Biaya Pengiriman Buah Kelapa Sawit (Studi Kasus PT. Agro Muko)." Jurnal Optimasi Teknik Industri (JOTI) 1, no. 2 (2019): 35. http://dx.doi.org/10.30998/joti.v1i2.4775.

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<p>PT. Agro Muko adalah perusahaan perkebunan kelapa sawit dan melakukan pengiriman buah kelapa sawit dari perkebunan di tiga tempat yaitu Talang Petai Estate, Sei Kiang Estate, dan Tanah Rekah Estate. Dari ketiga lokasi ini akan melakukan pengiriman buah kelapa sawit ke beberapa pabrik yaitu, Muko-Muko, Bunga Tanjung, Air Bikuk, dan Air Hitam.Pengiriman buah kelapa sawit menggunakan alat transportasi darat berupa truk-truk terbuka dengan kapasitas pengiriman 7,5 ton. Frekuensi pengiriman menjadi hal yang penting perhitungan biaya transportasi dengan daya tampung pabrik yang terbatas. Bi

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Shen, S. S. P., H. Yin, K. Cannon, A. Howard, S. Chetner, and T. R. Karl. "Temporal and Spatial Changes of the Agroclimate in Alberta, Canada, from 1901 to 2002." Journal of Applied Meteorology 44, no. 7 (2005): 1090–105. http://dx.doi.org/10.1175/jam2251.1.

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Abstract This paper analyzes the long-term (1901–2002) temporal trends in the agroclimate of Alberta, Canada, and explores the spatial variations of the agroclimatic resources and the potential crop-growing area in Alberta. Nine agroclimatic parameters are investigated: May–August precipitation (PCPN), the start of growing season (SGS), the end of the growing season (EGS), the length of the growing season (LGS), the date of the last spring frost (LSF), the date of the first fall frost (FFF), the length of the frost-free period (FFP), growing degree-days (GDDs), and corn heat units (CHUs). The

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Wang, Hongbing, Yuxi Wu, Xiaoming Wan, Lu Xia, and Si Wang. "Grain Size Characteristics of Surface Sediments and Their Migration Trends in the Nearshore Waters of East Guangdong." Sustainability 15, no. 14 (2023): 11069. http://dx.doi.org/10.3390/su151411069.

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By collecting surface sediment samples from 158 stations in the near-shore waters of eastern Guangdong, grain size analysis and grain size parameter calculations were performed to explore the characteristics and migration trends of surface sediments in the area. The analysis of the grain size results showed that the surface sediments in the nearshore waters of east Guangdong could be classified into nine sediment types, mainly including seven types of gravel sand ((g)S), gravel muddy sand ((g)mS), gravelly mud ((g)M), sand (S), silty sand (zS), sandy silt (sZ) and silt (Z). The relative percen

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Han, Jianwen, Mingyue Wang, Nan Wang, Jiawen Wang, Jie Peng, and Chunhui Feng. "Research on Cotton Field Irrigation Amount Calculation Based on Electromagnetic Induction Technology." Remote Sensing 15, no. 8 (2023): 1975. http://dx.doi.org/10.3390/rs15081975.

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The rapid and efficient acquisition of field-scale farmland soil profile moisture-distribution information is very important for achieving precise irrigation and the adjustment and deployment of irrigation strategies in farmland. EM38-MK2 is a portable, non-invasive device that induces electric currents in soil to generate secondary magnetic fields for the rapid measurement of apparent electrical conductivity in the field. In this study, cotton fields were used as experimental objects to obtain soil apparent conductivity data for three periods, which were combined with soil-moisture content da

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Cahyadi, Lina. "MODEL MATEMATIKA UNTUK MASALAH TRANSPORTASI LEBIH DARI SATU PRODUK [MATHEMATICAL MODELS FOR TRANSPORTATION PROBLEMS INVOLVING MORE THAN ONE PRODUCT]." FaST - Jurnal Sains dan Teknologi (Journal of Science and Technology) 6, no. 2 (2022): 103. http://dx.doi.org/10.19166/jstfast.v6i2.5340.

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<p><em>Distribution companies need to plan efficient shipments to avoid incurring large shipping costs. Therefore, a company that addresses transportation problems by choosing the right distribution pattern can obtain optimal distribution costs. The transportation problem model is applied to allocate the same product to the destination places. In the problem of distributing more than one product, the transportation problem model is modified so that it can be used to optimize shipping costs. This study aimed to optimize distribution costs using a modified transportation problem mode

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Szkutnik-Rogoż, Joanna, Jarosław Ziółkowski, Jerzy Małachowski, and Mateusz Oszczypała. "Mathematical Programming and Solution Approaches for Transportation Optimisation in Supply Network." Energies 14, no. 21 (2021): 7010. http://dx.doi.org/10.3390/en14217010.

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The problem of transport is a special type of mathematical programming designed to search for the optimal distribution network, taking into account the set of suppliers and the set of recipients. This article proposes an innovative approach to solving the transportation problem and devises source codes in GNU Octave (version 3.4.3) to avoid the necessity of carrying out enormous calculations in traditional methods and to minimize transportation costs, fuel consumption, and CO2 emission. The paper presents a numerical example of a solution to the transportation problem using: the northwest corn

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Peng, B., X. Xiao, B. Zhao, and H. Li. "APPLICATION OF DIGITAL TWINS IN HIGH PRECISION GEOLOGICAL HAZARD SURVEY AND PREVENTION IN BEIJING." International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLVIII-3/W1-2022 (October 27, 2022): 39–44. http://dx.doi.org/10.5194/isprs-archives-xlviii-3-w1-2022-39-2022.

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Abstract. Beijing is located in the northwest corner of the North China Plain, with a total area of 16410 km2, of which mountainous area accounts for about 61.3 % of the total area. Due to the complex geological and geomorphological conditions, the development of fault structures, the spatial-temporal uneven distribution of rainfall and the influence of human engineering activities, there are many sudden geological hazards in Beijing, such as collapse, landslide, debris flow and mining collapse. As is known, Beijing is one of the capital cities with most developed sudden geological hazard in t

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Obroślak, Radomir, and Oleksandr Dorozhynskyy. "Selection of a semivariogram model in the study of spatial distribution of soil moisture." Journal of Water and Land Development 35, no. 1 (2017): 161–66. http://dx.doi.org/10.1515/jwld-2017-0080.

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AbstractThe paper presents a selection of a semivariogram model in the study of spatial variability of soil moisture in a loess agricultural catchment. Soil moisture tests were carried out in the Moszenki village, 15 km northwest of Lublin. Soil moisture measurements were performed at two dates at 104 points, located on a rectangular surface measuring 700 × 1200 m. These points were laid out in the corners of a grid of squares with sides 100 m. In addition, 6 measurements were made at a distance of less than 100 m from the nearest points. Soil moisture was measured in the soil surface (0–5 cm)

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Pereira, Paulo, Marc Oliva, and Edita Baltrėnaitė. "MODELLING EXTREME PRECIPITATION IN HAZARDOUS MOUNTAINOUS AREAS. CONTRIBUTION TO LANDSCAPE PLANNING AND ENVIRONMENTAL MANAGEMENT." JOURNAL OF ENVIRONMENTAL ENGINEERING AND LANDSCAPE MANAGEMENT 18, no. 4 (2010): 329–42. http://dx.doi.org/10.3846/jeelm.2010.38.

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Extreme precipitation episodes are very common in Mediterranean area and can lead to serious and catastrophic environmental hazards. They have special incidence during autumn months, September, October and November (SON) with important impacts on society, leading frequently to significant economic losses and mortality. These events have special impact in mountainous areas where steep slopes enhance the effects of extreme precipitation. In mountainous areas rain gauge stations are sparse and normally in lower amount. Due to these reasons it is very important to map with higher accuracy the dist

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Steidl, Jamison H., Ralph J. Archuleta, and Stephen H. Hartzell. "Rupture history of the 1989 Loma Prieta, California, earthquake." Bulletin of the Seismological Society of America 81, no. 5 (1991): 1573–602. http://dx.doi.org/10.1785/bssa0810051573.

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Abstract Strong motion records of the 1989 Loma Prieta earthquake are inverted to determine a model of the rupture history. Uncorrected horizontal and vertical accelerograms are integrated to particle velocity time histories for 38 stations within an epicentral range of 75 km. The time histories are bandpassed filtered with corners at 0.05 and 1.0 Hz. These bandpassed time histories are inverted using a nonlinear method to solve for the distribution of slip amplitudes and rupture times at specified locations on the fault plane. The fault plane is specified a priori: 38 km long and 17 km wide,

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Cowley, R., and G. W. O'Brien. "IDENTIFICATION AND INTERPRETATION OF LEAKING HYDROCARBONS USING SEISMIC DATA:A COMPARATIVE MONTAGE OF EXAMPLES FROM THE MAJOR FIELDS IN AUSTRALIA'S NORTHWEST SHELF AND GIPPSLAND BASIN." APPEA Journal 40, no. 1 (2000): 119. http://dx.doi.org/10.1071/aj99008.

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An extensive volume of 3D seismic data over a number of oil and gas fields in Australia's North West Shelf and Gippsland Basin has been examined for evidence of the effects of hydrocarbon migration and/or leakage. For comparative purposes, 2D and 3D data have also been studied over a number of adjacent traps, including dry traps and partially to completely breached accumulations. Fields and traps investigated include Bayu-Undan, Jabiru, Skua, Swift and Tahbilk in the Bonaparte Basin, Cornea in the Browse Basin, North Rankin, Chinook, Macedon, Enfield and Zeewulf in the Carnarvon Basin, and Kin

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Atah, Formbui Paul, Njunda Anna Longdoh, Benjamin Pokam Thumamo, and Jane Francis Akoachere. "Knowledge, Attitudes and Practices Among Adult Malaria Patients Co-Infected with Opportunistic Intestinal Coccidian Parasites in Fundong Health District, Northwest, Cameroon: A Cross Section Study Design." European Journal of Theoretical and Applied Sciences 1, no. 4 (2023): 1121–40. http://dx.doi.org/10.59324/ejtas.2023.1(4).105.

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Introduction: Malaria and intestinal coccidian parasitic co-infections, are becoming a public health emergency affecting millions of people around the world. They are among the leading cause of socio-economic problems, long suffering and death especially in developing countries like Cameroon. Introducing new appropriate preventive and control measures to the population requires thorough assessment of community and patient-based knowledge, attitude and preventive practices towards malaria and pathogenic intestinal coccidian parasites is crucial. Our study aimed to describe knowledge, attitudes,

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Formbui, Paul Atah, Anna Longdoh Njunda, Pokam Thumamo Benjamin, and Francis Akoachere Jane. "Knowledge, Attitudes and Practices Among Adult Malaria Patients Co-Infected with Opportunistic Intestinal Coccidian Parasites in Fundong Health District, Northwest, Cameroon: A Cross Section Study Design." European Jornal of Theoretical and Sciences 1, no. 4 (2023): 1121–40. https://doi.org/10.59324/ejtas.2023.1(4).105.

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Introduction: Malaria and intestinal coccidian parasitic co-infections, are becoming a public health emergency affecting millions of people around the world. They are among the leading cause of socio-economic problems, long suffering and death especially in developing countries like Cameroon. Introducing new appropriate preventive and control measures to the population requires thorough assessment of community and patient-based knowledge, attitude and preventive practices towards malaria and pathogenic intestinal coccidian parasites is crucial. Our study aimed to describe knowledge, attitudes,

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Fatemy, S., E. Abootorabi, N. Ebrahimi, and F. Aghabeigi. "First Report of Pratylenchus neglectus and P. thornei Infecting Canola and Weeds in Iran." Plant Disease 90, no. 12 (2006): 1555. http://dx.doi.org/10.1094/pd-90-1555b.

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Cultivation of canola (Brassica napus L.) is relatively new in Iran. Because nearly 90% of Iran's edible oil is imported, farmers are subsidized and encouraged to grow this crop. Except for the sugar beet cyst nematode, Heterodera schachtii, to which susceptibility of some canola cultivars has been established (1), information on other nematode pests of canola is lacking. During a survey from April—May 2002 and repeated in 2003, soil and root samples of winter canola and weeds were collected at harvest of canola from research stations and farmers' fields in the south, west, and northwest of Te

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Gutierrez, Dubert, Vinodh Kumar, Robert G. Moore, and Sudarshan A. Mehta. "Air Injection and Waterflood Performance Comparison of Two Adjacent Units in the Buffalo Field." SPE Reservoir Evaluation & Engineering 11, no. 05 (2008): 848–57. http://dx.doi.org/10.2118/104479-pa.

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Summary Buffalo field covers a large area on the southwestern flank of the Williston basin, in the northwest corner of South Dakota. In 1987, 8,000 acres of the field were divided into two units to initiate improved-oil-recovery (IOR) operations with two different methods: air injection and waterflooding. After collecting 19 years of production history, a technical and economic comparison has been made between the two projects to determine the relative success of both units. The technical performance was evaluated in terms of incremental oil recovery, ultimate recovery, and incremental recover

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