scholarly journals Optimization of Rice Distribution Using a Linear Programming Model at Perum Bulog, West Java Regional Division, Indonesia

Webology ◽  
2021 ◽  
Vol 18 (2) ◽  
pp. 183-198
Author(s):  
Maun Jamaludin

Good distribution network management is a very important competitive advantage for a company. The distribution that is not right with the wrong time will also have a big impact on all aspects, especially company profits. The exact number and timing are crucial points in the distribution. The distribution and transportation system must be designed optimally so that the minimum cost is obtained. Perum Bulog, West Java Regional Division, is the government's representative in distributing rice evenly and distributing rice, which is a staple food commodity for Indonesian people in general. Of course, it must pay attention to optimal distribution patterns. In carrying out the operational process, the West Java Regional Division of Perum Bulog will be assisted by 7 Regional Sub-Divisions scattered throughout the West Java region who will handle rice in their respective working areas. This study aims to determine the planning path and the optimum amount of rice distribution from the West Java Regional Division to districts and cities that can minimize distribution costs so that the costs incurred will reach their lowest point using the Linear Programming method. The analysis of this research was assisted by the LINDO software version 7.0 for Windows 10.0. From the results of this research, the optimization of rice distribution at Perum Bulog Divre West Java, with the optimum total distribution cost is IDR 6,374,025 360.

Webology ◽  
2021 ◽  
Vol 18 (2) ◽  
pp. 631-642
Author(s):  
Maun Jamaludin

Good distribution network management is a very important competitive advantage for a company. West Java Bulog is the representative of the government in distributing and distributing rice, which is a staple food commodity for the Indonesian people in general, of course, must pay attention to the optimal distribution pattern. In carrying out its operational processes, West Java Bulog will be assisted by 7 regional subdivisions spread throughout the West Java region who will handle rice in their respective working areas. This study aims to determine the planning path and the optimum amount of rice distribution from the West Java Bulog to districts and cities that can minimize distribution costs so that the costs incurred will reach the lowest point using the Linear Programming method. The analysis of this research was assisted by LINDO Software version 7.0 for Windows 10.0. From the results of this study, the optimization of rice distribution at the West Java Bulog, with the optimum total distribution cost of USD 124,272.


2020 ◽  
Vol 2 (1) ◽  
pp. 81-100
Author(s):  
Lydia Hazanah ◽  
Wiryo Setiana ◽  
Dyah Rahmi Astuti

Perum Perhutani Divisi Regional Jawa Barat dan Banten merupakan perusahaan atau instansi yang melaksanakan Human Relations melalui kegiatan informal, kegiatan informal tersebut dilakukan oleh Unit Seksi Humas dan Protokoler pada Bidang Ekspert Madya Komunikasi dan Pelaporan. Peneliti tertarik melakukan penelitian ini dengan tujuan untuk menetahui bagaimana gambaran impelementasi Human Relations melalui kegiatan informal di Perum Perhutani. Paradigma yang digunakan dalam penelitian ini adalah konstruktivisme yang bertujuan untuk memaknai makna-makna yang diungkapkan informan. Pendekatan yang digunakan adalah pendekatan kualitatif yang bertujuan untuk memahami fenomena yang dialami oleh subjek penelitian secara utuh. Metode yang digunakan dalam penelitian ini adalah studi kasus, karena penulis ingin mengetahi aspek “how” dan “why”yang bertujuan untuk mengetahui karakteristik setiap manusia dengan cara berinteraksi secara langsung dan mendalam. Berdasarkan hasil penelitian menunjukkan bahwa implementasi Human Relations melalui kegiatan informal tersebut menggunakan konsep POAC yaitu perencanaan (Planning), pengorganisasian (Organizing), pelaksanaan (Actuating), dan pengawasan (Controling), sehingga dalam kegiatan informal di Perum Perhutani menerapkan atau mengimplementasi Human Relations melalui kegiatan informal tersebut dengan sebaik mungkin. Implementasi yang tercipta di Perum Perhutani dapat menciptakan kenyamanan, merasa dihargai dalam melaksanakan setiap pekerjaan, sehingga dapat dipahami pula bahwa implementasi Human Relations melalui kegiatan informal di Perum Perhutani telah dilaksanakan dengan baik sehingga dapat menciptakan serta meningkatan produktivitas dalam bekerja. Perum Perhutani Regional Division of West Java and Banten is a company or agency that carries out Human Relations through informal activities, informal activities are carred out by the Public Relations and protocol section unit in the field of experts in intermediate communication and reporting. Researchers are interested in doing this research with the aim to find out how the descripyion of Human Relations implementation through informal activities in Perhutani Public Division West Java and Banten Regional Division through the concept of POAC from planning, organizing, implementing to monitoring (controlling) the activity. The paradigm used in this study is contructivism which aims to interpret the meanings expressed by informants. The approach used is a qualitative approach that aims to understand the phenomenon experienced by the research subject in its entirety. The method used in this study is a case study, because the author wants to know the “how” and “why” aspects that aim to find out the caracteristics of each human being by interacting directly and deeply. Based on the results of the study showed that the implementation of Human Relations throught informal activities using the consept of POAC namely planning, organizing, actuating, and controlling, so that in informal activities in the Perhutani public corporate to implement Human Relations throught informal activites as well as possibl. The implementation created in Perum Perhutani can create comfort, feel valued in carrying out every job, so that it can be understood also that the implementation of Human Relations throught informal activites in Perum Perhutani has been carried out properly so as to create and improve productivity in work. 


The family of (VRPs) has received remarkable attention in the field of combinatorial optimization after its introduction in the paper of Dantzig and Ramser. VRPs determine a set of vehicle routes in order to accomplish transportation requests at minimum cost. In this paper we develop a mixed-integer non-linear programming model for vrp and apply it in electric vehicle charging.


2019 ◽  
Vol 14 (2) ◽  
pp. 230-239
Author(s):  
Nur Fatihah Fauzi ◽  
Rohana Alias ◽  
Nor Hayati Shafii

Humans need to eat good and balanced nutritious diet that provides calories for energy requirements andnutrients for proper growth, repair and maintenance of the body tissue. Today, busy lifestyle habitsdrastically changed the pattern of eating where students are more likely to have irregular meal times andthe cost of food may be expensive for them. Therefore, this study is conducted to find the minimum costthat satisfies the daily nutrient requirements. A linear programming (LP) model and goal programming(GP) model are formulated where the objective function is the total cost of food. Food prices werecollected from selected cafés in UiTM Perlis and the recommended daily nutrient intakes of 19-29 yearsold, male and female were obtained from the Ministry of Health Malaysia. The sample used in thisresearch consists of 10 most frequently consumed food items as decision variables. QM for Windows V5was used to determine minimum cost that satisfies the nutritional requirements. LP results, the minimumcost for male students is RM9.88 and for female students is RM9.10. Based on the GP results, the cost isRM9.00 for both male and female students. It is evident from the results that GP has achieved theminimum cost and the food basket for male students consists of 410g of rice, 140g of chicken, 42.9g ofbroccoli and 252.7g of mushroom. Meanwhile, the food basket for female students consists of 429g ofrice, 113.4g of chicken, 37.44g of broccoli and 321.3g of mushroom. Keywords: Linear Programming Model, Goal Programming Model, Minimum Cost, Nutritional requirements, Optimization


2021 ◽  
Vol 28 (3) ◽  
pp. 1-24
Author(s):  
Luis Felipe Zegarra

This study relies on a linear programming model to estimate welfare ratios in 19th century Lima. By using a linear programming model, the food basket guarantees the intake of basic nutrients at the minimum cost. The subsistence cost includes the cost of food and other basic needs. The estimates show that low-skilled workers in Lima were able to cover their basic needs in 1800-1875. The results also show that living standards of low-skilled workers declined during the Guano Era. Living standards in Lima, however, compared favorably to several cities in Europe.


2018 ◽  
Vol 15 (4) ◽  
pp. 86-95 ◽  
Author(s):  
Mirko Di Giacomo ◽  
Marisa Cenci

In this paper, authors consider ownership networks to quantify the ease with which a company can be controlled due to the shareholding relationships in which it is involved. These networks have been usually considered in a descriptive perspective, either to quantify the control exerted by an ultimate shareholder, especially in presence of complex patterns of indirect control, or as a subject of topological analysis. Recently, a new stream of literature arose, solving optimization problems on ownership networks. Among these tools, authors explicitly refer to the Indirect Control Problem (IC) (Martins & Neves, 2017), which determines the minimum cost control strategy of a set of Target company, namely a strategy to build a robust investment fund which includes the corporate control on one or more companies. In this paper, we combine the descriptive and the optimization approach, introducing a linear programming model, namely Cheapest Control Problem (CCP), contributing on both the descriptive and the optimization approach. In particular, authors propose CCP overcome some of the IC main limitations, i.e. the overestimation of control in presence of mutual cross-shareholdings. Furthermore, CCP solutions allow computing three indexes that measure the ease with which a company can be controlled depending on its ownership relationships. Finally, a case study is incorporated to compare IC and CCP solutions, discussing the informative power of the indices introduced.


2018 ◽  
Vol 248 ◽  
pp. 03014
Author(s):  
Syafira Chika Widiyanti ◽  
M. Dachyar ◽  
Farizal

Efficient product distribution is a key driver of the overall profitability of a company. The high cost of product distribution in food SMEs is caused by the absence of a proper distribution cost calculation to obtain optimal distribution decisions. This research aims to provide SMEs with a product distribution model with the lowest cost. A Heterogenous Fleet Vehicle Routing Problem (HVRP) for SMEs product distribution is modeled in the form of Integer Linear Programming and solved using branch-and-bound algorithm to obtain an optimal route and vehicle assignment with the lowest cost. The result of this research is a model that can be used by SMEs to make daily product distribution decision.


Author(s):  
Rezky Hidayat

The In the current era of globalization, the economic situation in Indonesia is indeed very concerning. With these conditions, many micro businesses, especially home industry businesses, have to struggle to continue carrying out product activities so that their production businesses develop. CV.Indoshoten is a small-scale company producing four main products, namely onigiri salmon flake, spicy tuna onigiri, salmon mayo onigiri and tuna mayonnaise onigiri. To maintain the continuity and development of production, steps are needed to be able to allocate raw materials and increase profits. Therefore we need an effort to use a method in determining the right combination of use of the production factors of the products made and the combination of the products produced using the linear programming model of maximization problems with the simplex method and for analysis using the solver method. The results of this study that the salmon-filled onigiri product will get a maximum profit of Rp.875,000 if the company produces 125 pieces of salmon flake onigiri and 25 pieces of salmon mayo while the tuna-filled onigiri product will get a maximum profit of Rp.626,692 if the company produces spicy tuna onigiri. 40 pcs and 107 pcs of tuna mayo. If a company has a lot of inputs that must be used for the production process and the main purpose of obtaining profits that can be used is the simplex method, whereas if the user wants to analyze variable changes so that profits remain optimal then use the solver method.


2020 ◽  
Vol 6 (1) ◽  
Author(s):  
S Mohd Baki ◽  
Jack Kie Cheng

Production planning is often challenging for small medium enterprises (SMEs) company. Most of the SMEs are having difficulty in determining the optimal level of the production output which can affect their business performance. Product mix optimization is one of the main key for production planning. Many company have used linear programming model in determining the optimal combination of various products that need to be produced in order to maximize profit. Thus, this study aims for profit maximization of a SME company in Malaysia by using linear programming model. The purposes of this study are to identify the current process in the production line and to formulate a linear programming model that would suggest a viable product mix to ensure optimum profitability for the company. ABC Sdn Bhd is selected as a case study company for product mix profit maximization study. Some conclusive observations have been drawn and recommendations have been suggested. This study will provide the company and other companies, particularly in Malaysia, an exposure of linear programming method in making decisions to determine the maximum profit for different product mix.


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