Academic literature on the topic 'Northwest Corner Method'
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Journal articles on the topic "Northwest Corner Method"
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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 number of iterations using the two methods is the same, namely eight iterations. The difference between these two methods is the transportation cost of Rp. 696,000 for the Northwest Corner method and Rp. 611,400 for the Vogels Approximation method. The results of the calculation of the optimal solution show that there are differences in the number of iterations. For the Northwest Corner and Northwest Corner methods, the number of iterations is seven, while the Vogels Approximation and Northwest Corner methods have two iterations. The optimal solution of the two methods obtained the same transportation costs of Rp. 600,400. Thus the Vogels Approximation and Northwest Corner methods are more analytically efficient.
 Abstrak. Penelitian ini dilaksanakan pada PD. X yaitu salah satu perusahaan yang mendistribusikan produk air minum dalam kemasan di daerah kota Bandung dan sekitarnya dan belum memiliki teknik perhitungan pengoptimalan biaya transportasi yang permanen sehingga dapat mengakibatkan biaya distribusi yang cukup tinggi. Persoalan tersebut dapat diformulasikan dalam model transportasi. Metode yang digunakan untuk penentuan solusi fesibel awal adalah Northwest Corner dan Vogels Approximation, sedangkan penentuan solusi optimum menggunakan Stepping stone. Hasil perhitungan solusi fesibel awal menunjukan bahwa jumlah iterasi menggunakan kedua metode tersebut sama yaitu sebanyak delapan iterasi. Perbedaan dari kedua metode ini terdapat pada biaya transportasi sebesar Rp. 696.000 untuk metode Northwest Corner dan sebesar Rp. 611.400 untuk metode Vogels Approximation. Hasil perhitungan solusi optimal menunjukan adanya perbedaan jumlah iterasi. Untuk metode Northwest Corner dan Northwest Corner jumlah iterasi yaitu tujuh, sedangkan metode Vogels Approximation dan Northwest Corner jumlah iterasi yaitu dua. Adapun solusi optimal dari kedua metode tersebut diperoleh biaya transportasi yang sama sebesar Rp. 600.400. Dengan demikian metode Vogels Approximation dan Northwest Corner lebih efisien secara analitik.
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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 is needed to channel aid to every place affected by the disaster. In the distribution of assistance, constraints often occur, such as late notification and requests that do not match the supply of goods owned by the aid provider. In distributing aid to areas affected by natural disasters other than the central government, local governments have many organizations participating in it. In order to overcome these problems a system that can provide notifications and perform precise calculations is needed to find out how much assistance should be given based on existing demand and supplies. This paper discusses the optimization of the delivery of assistance through the car vehicle from the sending city of aid to the disaster area, by first determining the minimum distance from some of the sending towns to the disaster area.. The method used is the northwest corner method, MySQL, and SQLYog. The optimal solution obtained is web-based notification software in the form of SMS notifications.
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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 optimal solution. So that this research produces the lowest costs after applying the Northwest Corner method revealing transportation costs of IDR 69,256,630 and using the Russel Approximation Method, transportation costs are IDR 67,304,680. For Stepping Stone optimization, the transportation cost is IDR 66,641,020. Therefore, the Northwest Corner and Russell Approximation Methods and continued with the Stepping Stone method for this problem are more efficient, because the company found a reduction in transportation costs of 7.899% or IDR 5,715,700.
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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 implementation of the proposed forecast models of the optimal farm size is carried out by linear programming in three ways (northwest corner method, minimum cost method and What-If analysis method, that uses Solver, a Microsoft Excel add-in program). The implementation of the above approaches is based on the example of four farms and five natural-economic zones. The obtained solutions show that the best result is attained by using Solver for What-If analysis method, a Microsoft Excel add-in program. The northwest corner method gives the worst result, but this is the simplest solution. The minimum cost method depends on the researcher qualification and produces the result that is most often found between the results obtained by the northwest corner method and the "Solver" procedure. When using the method of the northwest corner a program of consideration of different options for the distribution of land resources and the choice of the optimal solution was developed. This allows to find an optimal result of land allocation according to the result, which is similar to the result of the procedure "Solver", but it is more adapted for the direct participation of the researcher in the process of solving problems. There is an opportunity to improve the result by changing the original data, which simulates the forecast of the distribution of farm land in natural-economic zones, while minimizing production costs. In the absence of access to computers, the solutions obtained by the northwest corner and the minimum cost methods can be improved by the potential method.
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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 problem. This paper analyses the use of ACO metaheuristics to find the initial basic feasible solution in an unbalanced and balanced transportation method. Then, it compares it to other traditional methods (The least cost method, Northwest Corner method, and Vogel’s approximation method). The primary goal of this study is to provide a helpful framework for understanding new trends in applying swarm intelligence in system optimisation and implementing/using the ACO algorithm in a real-life situation. Examples were generated online. At the end of the paper, for the unbalanced transportation problem, the Least Cost method, Northwest Corner method, Vogel’s Approximation method, and ACO method gave us (472, 547, 374, and 389) as the total cost, respectively. For the balanced transportation problem, the Least Cost, Northwest Corner, Vogel’s Approximation, and ACO methods gave us (2450, 3700, 2150, and 3650) as the total cost, respectively.
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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, there is a need for developing a method for arriving at initial basic feasible solution with adequate number of entries needed to initiate transportation simplex algorithm, which can then be used to get an optimal solution. A computer software has been developed based on the new proposed method for this purpose. The proposed new method has been validated through four simple but illustrative examples.
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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 applied research, this research aims to find the optimization of product delivery costs. Data were collected through interviews and documentation, then analyzed using the Northwest Corner and Vogel's Approximation methods. Analysis using the Northwest Corner method found a shipping cost of IDR 431,600.00, while the Vogel's Approximation method found a shipping cost of IDR 427,900.00. The shipping costs found were actually lower than the financing that had been issued so far. Keyword: northwest cor, spice drinks, optimization of transportation, UMKM Naturies Indonesia, vogel’s approximation
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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 sebagai penyelesaian solusi optimal dengan menggunakan software POM-QM. Hasil output yang diperoleh hasil dari dua metode yang digunakan adalah sama, pada tabel transportation result didapatkan hasil optimal sebesar Rp 89.040.000,- serta pada tabel shipping list didapatkan nilai masing-masing distribusi pestisida Roundup pada setiap tujuan dan harga pengiriman per unit. Melalui penelitian menggunakan metode transportasi Northwest Corner dan Modified Distribution yang telah dilakukan ini diharapkan nantinya PT. XYZ dapat mempertimbangkannya sebagai perencanaan distribusi yang akan dilakukan mendatang.
 
 Kata Kunci: Optimasi, Distribusi, Modified Distribution, North West Corner, Transportasi.
 
 ABSTRACT
 Problems in transportation activities are usually related to the distribution of goods or products from several sources to several destinations. Distribution will be expensive and will result in wastage of time, distance, and energy if not managed properly. The aim of this research is to minimize the distribution cost of Roundup Biosorb pesticide by allocating the product optimally at PT. XYZ by applying the North West Corner method as the initial solution completion and the Modified Distribution method as the optimal solution solution using POM-QM software. The output results obtained from the two methods used are the same, in the transportation result table, the optimal result is IDR. 89,040,000, - and the shipping list table shows the value of each distribution of Roundup pesticides at each destination and the shipping price per unit. Through research using the Northwest Corner and Modified Distribution method of transportation that has been carried out, it is hoped that later PT. XYZ can consider it as a distribution plan that will be carried out in the future.
 
 Keywords: Optimization, Distribution, Modified Distribution, North West Corner, Transportation.
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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 obtained using the Northwest Corner Method are Rp. 276,892,208, the Least Cost Method obtained Rp. 186,058,754, and the Vogel Method Rp. 77. 415.457. The Stepping Stone Method as the final result obtained Rp.77,415,457. The method that is closest to the optimal value is the Vogel Approximation Method because it can provide minimum costs and provide greater benefits when compared to other methods. Keywords: Northwest Corner Method, Least Cost Method, Vogel’s Approximation Method. ABSTRAK Penelitian ini menjelaskan tentang perbandingan akhir biaya minimum distribusi produk pertalite dan mengetahui hasil optimal biaya distribusi produk pertalite dengan menggunakan Metode Stepping Stone dan perbandingan software POM-QM. Jenis penelitian yang digunakan adalah penelitian kuantitatif dengan pengolahan data yang digunakan adalah Metode Barat Laut, Metode Biaya Terendah, dan Metode Vogel sebagai metode yang digunakan sebagai solusi awal yang layak. Solusi akhir yang digunakan untuk mencari solusi optimal adalah Metode Stepping Stone dan penggunaan software POM-QM sebagai pembanding. Hasil biaya distribusi yang diperoleh dengan menggunakan Metode Barat Laut sebesar Rp. 276.892.208, Metode Biaya Terendah diperoleh Rp. 186.058.754, dan Metode Vogel sebesar Rp. 77.415.457. Metode Stepping Stone sebagai hasil akhir diperoleh Rp. 77.415.457. Metode yang paling mendekati nilai optimal adalah Metode Vogel karena dapat memberikan biaya yang minimum dan memberikan keuntungan yang lebih besar jika dibandingkan dengan metode lainnya. Kata kunci: Metode Barat Laut, Metode Biaya Terendah, Metode Vogel.
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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, and gives the basic feasible optimum solution accordingly.
Dissertations / Theses on the topic "Northwest Corner Method"
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Wang, Li-Feng, and 王麗芬. "Establishing a Bottleneck Management Model for Wafer Fabrication Factories Using Northwest-corner Method." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/48016409725317125347.
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碩士<br>國立交通大學<br>管理學院工業工程與管理學程<br>100<br>Generally speaking, cost of equipments could claim 70%~90% of capital expenses of a new plant. The fixed overhead of equipments for different wafer size foundry accounts for the largest proportion of the cost. The depreciation of equipment will be assigned to the fixed overhead. The percentage of fixed overhead that accounts for wafer unit cost varies from equipment to equipment due to depreciation. Thus, it is very essential for all wafer foundries to increase the utility of equipments.
The most important responsibility of an industrial engineer (IE) is to design the most effective capacity planning for a plant. Static capacity planning (SCP) is the most common method for doing long-term capacity plan. The equipment loading can be evaluated very quickly through SCP under some kind of product combinations. However, equipment limitations are usually not included in SCP simulation model. Therefore, to resolve this problem, one better approach is to dissolve equipment limitations. Objective of this study is to develop a new management model to improve the main drawback of SCP using northwest-corner method. Finally, a real case from a Taiwan wafer foundry is utilized to demonstrate the effectiveness of the proposed method.
Book chapters on the topic "Northwest Corner Method"
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Mawson, Stephanie Joy. "Cagayan Insurgencies, 1572–1745." In Incomplete Conquests. Cornell University Press, 2023. http://dx.doi.org/10.7591/cornell/9781501770265.003.0007.
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This chapter focuses on the history of Spanish colonization in Cagayan, which is one of constant expansion and contraction of territorial influence, as rebellion after rebellion spread through the valley. It is clear that the relationship between valley communities and upland spaces was what made Cagayan so volatile. All of the different lowland zones of Cagayan maintained a connection with unpacified upland groups—from the Isnegs and Kalingas in the northwest to the Aetas of the Sierra Madre Mountains in the east, and the Ifugaos, Ilongots, and other inhabitants of Nueva Vizcaya in the southern half of the valley. Colonization altered connections that predated Spanish arrival, with established trading networks linking lowland and upland spaces. While missionaries and colonial officials devised ever greater methods of armed coercion, the frontier developed a symbiotic logic of its own based in extensive and profitable trading networks between upland communities and lowland frontier settlements. Active resistance and trade interests, often illicitly pursued against colonial authority, combined to frustrate the aims of the Spanish Crown for control over the vast majority of Northern Luzon.
Reports on the topic "Northwest Corner Method"
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VandenBerg, R. D., P. B. Kabanov, K E Dewing, and E. A. Atkinson. Geological and geochemical data from the Canadian Arctic Islands, part XVIII: XRF and TOC data, and formation tops in exploration wells from the Devonian clastic wedge and underlying strata, Northwest Territories and Nunavut. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/329642.
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This collection of data comprises new XRF data, TOC data, and a new table of formation tops for the lower portion of the Devonian clastic wedge (Weatherall, Cape de Bray and Blackley formations sensu Embry and Klovan, 1976) and the underlying basinal and carbonate-platform strata of variable Ordovician to Lower-Middle Devonian age. Main results include ED-XRF data for 15 well sections within the N.W.T. jurisdiction of the SW Arctic Archipelago. These XRF data were obtained in 2018- 2020 through non-destructive measurements of drillhole cutting samples using a Bruker Tracer IV instrument. Testing of these samples has been restricted to preserve them for future study as they are irreplaceable. The goal of using the non destructives XFR has given us a methodology that does not harm these samples. We find this to be a reasonable method when data is required but no destructive testing is permitted, such as in these legacy wells. Reading acquisition procedure and instrument calibrations are discussed herein. These XRF logs cover cumulatively 12,538 m of well sections, which is the best attainable physical coverage for these strata in the absence of representative cores. For each section surveyed with XRF, we provide graphical striplogs with geophysical logs, descriptive lithology, XRF elemental logs, biostratigraphic data, and, selectively, synthetic seismograms and TOC data. Scientific discussion based on these results is a subject of a separate paper-in-preparation, (Kabanov, P. 2020.)