scholarly journals Fuzzy Balanced Allocation Problem with Efficiency on Servers

Author(s):  
Azam Azodi ◽  
Jafar Fathali ◽  
Mojtaba Ghiyasi ◽  
Tahereh Sayar

Abstract This paper deals with the problem of allocation customers to servers with regards to some fuzzy parameters. In this problem each customer is allocated to the nearest server, and assignment of a customer to a server involves the cost to the customer, which is due to the customer's fuzzy distance to the server. Each server has a fuzzy efficiency which is calculated by the data envelopment analysis method with fuzzy parameters. The higher efficiency of the server to which a customer is assigned, cause more profit for the customer. The goal is allocation of all customers to the servers such that the profitability of the least profits for the customers is maximized. In addition, to prevent queuing in some servers, we consider the balancing on allocation customers to the servers. Therefore, the second goal is minimizing the difference between the maximum and minimum number of customers that are assigned to different servers. A fuzzy bi-objective programming model is presented for the problem, then two fuzzy approaches are proposed for solving this model.

2013 ◽  
Vol 10 (1) ◽  
Author(s):  
Carolina Kumalasari

      This study aims to calculate the cost of goods manufactured baby clothes garment CV Surya Surabaya with the ABC method for reporting purposes and objectives of decision making in gaining competitive advantage . Data analysis method used is descriptive analysis method . The results showed that the conventional cost accounting applied in the enterprise value of the difference of the calculation produces the ABC method. Calculation of costs by activity-based costing method is expected to assist management in making more informed decisions as to be benefit/profit. Data collection methods used in this study is documentation . Research subjects in this study is the production cost of baby clothes in CV Surya Garments Surabaya . The research object in this study is the data associated with the determination of the production cost of baby clothes. The difference between the production cost of conventional methods with activity-based costing method produces values undercosting conditions ( conditions in which a product has a lower cost than the actual cost is absorbed by the product ) and overcosting ( a condition in which a product has a higher cost than  the  cost of which is actually absorbed by the product ). Analysis undertaken in this study members advise the Company to undertake restructuring of the production process and production control for the results of each period more  evenly , because  the  fixed overhead costs is  greater than the variable overhead costs , it is most impact in the calculation of the cost of production.Keywords: Conventional Metode, Activity Based Costing Metode, Product costing


2022 ◽  
Vol 13 (1) ◽  
pp. 119-134 ◽  
Author(s):  
Hamed Allaham ◽  
Doraid Dalalah

Due to its proactive impact on the serviceability of components in a system, preventive maintenance plays an important role particularly in systems of geographically spread infrastructure such as utilities networks in commercial buildings. What makes such systems differ from the classical schemes is the routing and technicians' travel times. Besides, maintenance in commercial buildings is characterized by its short tasks’ durations and spatial distribution within and between different buildings, a class of problems that has not been suitably investigated. Although it is not trivial to assign particular duties solely to multi-skilled teams under limited time and capacity constraints, the problem becomes more challenging when travel routes, durations and service levels are considered during the execution of the daily maintenance tasks. To address this problem, we propose a Mixed Integer Linear Programming Model that considers the above settings. The model exact solution recommends collaborative choices that include the number of maintenance teams, the selected tasks, routes, tasks schedules, all detailed to days and teams. The model will reduce the cost of labor, replacement parts, penalties on service levels and travel time. The optimization model has been tested using different maintenance scenarios taken from a real maintenance provider in the UAE. Using CPLEX solver, the findings demonstrate an inspiring time utilization, schedules of minimal routing and high service levels using a minimum number of teams. Different travel speeds of diverse assortment of tasks, durations and cost settings have been tested for further sensitivity analysis.


2010 ◽  
pp. 17-21
Author(s):  
Tímea Gál ◽  
Gábor Grasselli ◽  
István Komlósi

In Hungary the dairy sector is in a long-term critical period, the stock has been in constant decline. The consumption of milk and dairy products in Hungary is slightly rising compared to the world tendency, and it is fallen behind the level in 1990. The milk consumption per capita in 2006 was with 75 liters less than the EU-15 average. Dairy enterprise is a very risky activity: the profitability of the enterprise is affected by the fluctuation of feed and animal health products prices from the side of inputs, and by the fluctuation of end-product prices. Under these circumstances it is vital for thecattle breeders, in order to survive, to harness the reserves in the breeding as effectively as possible. In our research we made a multi-faceted efficiency analysis of an agricultural holding’s three dairy farms. The chosen method for the analysis was Data Envelopment Analysis (DEA). Theselection of the method is justified by the fact that there is not such a reliable database by which we could define production functions, and that DEA makes possible to manage several inputs and outputs, i.e. multiple decision problems, simultaneously. By using DEA the sources that causes shortfalls can be identified, analyzed and quantified on farms that does not operate efficiently, thus it can help the corporate decision support successfully. In the model inputs are the cost data per one liter milk – feed, medicinal product use, logistic costs -, and the main parametersconcerning the keeping and rearing. Outputs are indicators concerning milk production, milk quality and others. We prepared the model in MS Excel, the linear programming model series were programmed by Visual Basic. After solving the model, in light of the shadow prices we can determine why either of the farms is not efficient.


2020 ◽  
Vol 15 (1) ◽  
pp. 28
Author(s):  
Cindy Shelly Lumowa ◽  
Jantje J. Tinangon ◽  
Anneke Wangkar

Calculation of the cost of production is something that needs to be considered in determining the selling price of the product. Calculation of the cost of production that is right and accurate is something that needs to be done by every company, without a precise and accurate calculation of the cost of production, the manufacturing company concerned will experience in setting the selling price of a product. The purpose of this study was to determine the cost classification applied by Holland Bakery Boulevard Manado in calculating the cost of production, to find out the calculation of the cost of production of Holland Bakery Boulevard Manado in setting selling price and find out the determination of product selling price applied by Holland Bakery Boulevard Manado. Data analysis method used for this research is descriptive analysis method. The collection of cost of goods manufactured is the process cost method, while the method of determining the cost of production uses the full costing approach. There is a difference in the selling price per packet of bread between Holland Bakery Boulevard Manado with a theory caused by differences in the allocation of costs and determination of mark up between companies and theories. The company's selling price is lower than the theory that the difference for chocolate bread is Rp. 1.589, then for cheese bread Rp. 1.910, and for srikaya bread Rp. 2.449.


2020 ◽  
Vol 54 (6) ◽  
pp. 1775-1791
Author(s):  
Nazila Aghayi ◽  
Samira Salehpour

The concept of cost efficiency has become tremendously popular in data envelopment analysis (DEA) as it serves to assess a decision-making unit (DMU) in terms of producing minimum-cost outputs. A large variety of precise and imprecise models have been put forward to measure cost efficiency for the DMUs which have a role in constructing the production possibility set; yet, there’s not an extensive literature on the cost efficiency (CE) measurement for sample DMUs (SDMUs). In an effort to remedy the shortcomings of current models, herein is introduced a generalized cost efficiency model that is capable of operating in a fuzzy environment-involving different types of fuzzy numbers-while preserving the Farrell’s decomposition of cost efficiency. Moreover, to the best of our knowledge, the present paper is the first to measure cost efficiency by using vectors. Ultimately, a useful example is provided to confirm the applicability of the proposed methods.


2020 ◽  
Vol 6 (2) ◽  
pp. 187-197
Author(s):  
Nurlaila Suci Rahayu Rais ◽  
Dedeh Apriyani ◽  
Gito Gardjito

Monitoring of warehouse inventory data processing is an important thing for companies. PT Talaga mulya indah is still manual using paper media, causing problems that have an effect on existing information, namely: problems with data processing of incoming and outgoing goods. And the difference between data on the amount of stock of goods available with physical data, often occurs inputting data more than once for the same item, searching for available data, and making reports so that it impedes companies in monitoring inventory of existing stock of goods. Which aims to create a system that can provide updated information to facilitate the warehouse admin in making inventory reports, and reduce errors in input by means of integrated control. In this study, the authors used the data collection method used in this analysis using the method of observation, interviews, and literature review (literature study). For analysis using the PIECES analysis method. Furthermore, the system design used is UML (Unified Modeling Language). The results of this study are expected to produce the right data in the process of monitoring inventory data processing, also can provide the right information and make it easier to control the overall availability of goods.


Manuskripta ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 67
Author(s):  
Novarina Novarina

Abstract: This research is a comparative literary study that uses Malay and Javanese versions of Mahabarata text sources. The research objects used were the text edition of Pandhawa Gubah (PG) by Sudibjo Z. Hadisutjipto and the text of Cheritera Pandawa Lima (CPL) by Khalid Hussain. The research method used is descriptive-analysis method. In the comparative study used a comparative literary theory proposed by Endraswara (2011). The results of the text comparison reveal the similarities and differences in the image of Bima figures in the Javanese and Malay versions. The equation as a whole is that both texts contain the same heroic storyline and heroic character, Bima. In addition, Indian influence is still evident in the two texts seen from the nuances of Hinduism that exist in both texts. While the difference is seen in the events that accompany Bima's struggle in achieving his victory. Based on these similarities and differences, it can be seen that the authors attempt to represent the concept of metaphysical interactions vertically and horizontally expressed through PG text. --- Abstrak: Penelitian ini adalah satu kajian sastra bandingan yang menggunakan sumber teks Mahabarata versi Melayu dan Jawa. Objek penelitian yang digunakan adalah edisi teks Pandhawa Gubah (PG) karya Sudibjo Z. Hadisutjipto dan teks Cheritera Pandawa Lima (CPL) karya Khalid Hussain. Metode penelitian yang digunakan adalah metode deskriptif-analisis. Dalam telaah perbandingan digunakan teori sastra bandingan yang dikemukakan Endraswara (2011). Hasil perbandingan teks mengungkapkan adanya persamaan dan perbedaan citra tokoh Bima dalam versi Jawa maupun versi Melayu. Persamaan secara keseluruhan adalah kedua teks tersebut mengandung alur cerita kepahlawanan dan tokoh pahlawan yang sama yaitu Bima. Selain itu, pengaruh India masih tampak dalam kedua teks tersebut dilihat dari nuansa Hinduisme yang ada dalam kedua teks. Sementara perbedaannya tampak pada peristiwa-peristiwa yang menyertai perjuangan Bima dalam mencapai kemenangannya. Berdasarkan persamaan dan perbedaan tersebut tampak adanya upaya penulis untuk merepresentasikan konsep interaksi metafisik secara vertikal dan horizontal yang diungkapkan melalui teks PG.


Metahumaniora ◽  
2017 ◽  
Vol 7 (3) ◽  
pp. 368
Author(s):  
Gilang Januarsyah

ABSTRAKUntuk menghasilkan sebuah karangan berbahasa Perancis yang dapat dipahamioleh khalayak umum, mahasiswa harus menguasai kemampuan berbahasa Perancis ragamtulis yang baik dan benar sesuai dengan kaidah yang berlaku. Penelitian ini bertujuanuntuk menjelaskan kesalahan sintaksis yang dilakukan oleh mahasiswa Program StudiSastra Perancis Universitas Padjadjaran. Data yang digunakan dalam penelitian ini diambildari sepuluh karangan mahasiwa yang duduk di semester lima dan tujuh dan dianalisisdengan menggunakan metode simak dan metode analisis padan referensial translasionaldengan pendekatan kualitatif. Hasil dari penelitian ini menunjukkan bahwa kesalahantertinggi yang dilakukan mahasiswa adalah kesalahan dalam penggunaan passé composédan imparfait sebesar 50%, kemudian diikuti oleh kesalahan dalam penggunaan pronomrelatif simple et composé ‘pronomina penghubung bebas dan turunan’ sebesar 30%, danterakhir kesalahan dalam penggunaan pronom COD et COI ‘pronomina COD dan COI’ sebesar20%. Faktor yang menyebabkan terjadinya kesalahan tersebut adalah faktor linguistikyang disebabkan oleh perbedaan kaidah tatabahasa bahasa Indonesia dan Perancis.Selain itu terdapat pula faktor sosiolinguistik yang disebabkan oleh jarangnya mahasiswamembiasakan diri mereka untuk mengaplikasikan bahasa Perancis di luar kelas.Kata kunci: kesalahan, sintaksis, bahasa Perancis, tulis, pengajaranABST RACTTo produce a French-language essay that can be understood by the general public,the students should master the ability of French language in good and true writing skill inaccordance with the applicable rules. The aim of this research is to explain the syntactic errorsmade by students of French literature’s program at University Padjadjaran. The sources ofdata are taken from the ten student essays who sit in the fifth and seventh semesters, and themethods used in this research are Observation Method ‘Metode Simak’ and the analyticalreference translational analysis method with a qualitative approach. The results of thisresearch indicate that the highest errors that students make are the use of passé composéand imparfait as much as fifty percent, followed by errors in the use of pronom relatifsimple et composé ‘the free and derivative pronouns’ thirty percent, and the last error is inthe use of pronom CO D et CO I ‘‘The COD and COI pronouns’ twenty percent. The factors thatcause those errors are a linguistic caused by the difference rules of Indonesian and Frenchgrammar. In addition there are also sociolinguistic factors caused by the rarity of studentsfamiliarize themselves to apply the French language outside the classroom.Keywords: Error, syntax, French language, writing, teaching


Author(s):  
SAFITRI NURHIDAYATI ◽  
RIZKI AMELYA SYAM

This study aims to analyze whether the difference that occurs in the cost of raw materials, direct labor, and factory overhead costs between the standard costs and the actual costs in PLTU LATI is a difference that is favorable or unfavorable. Data collection techniques with field research and library research. The analytical tool used is the analysis of the difference in raw material costs, the difference in direct labor costs and the difference in factory overhead costs. The hypothesis in this study is that the difference allegedly occurs in the cost of raw materials, direct labor costs, and factory overhead costs at PT Indo Pusaka Berau Tanjung Redeb is a favorable difference. The results showed that the difference in the cost of producing MWh electricity at PT Indo Pusaka Berau Tanjung Redeb in 2018, namely the difference in the price of raw material costs Rp. 548,029.80, - is favorable, the difference in quantity of raw materials is Rp. 957,216,602, - is (favorable) , the difference in direct labor costs Rp 2,602,642,084, - is (unfavorable), and the difference in factory overhead costs Rp 8,807,051,422, - is (favorable) This shows that the difference in the overall production cost budget is favorable or profitable. This beneficial difference shows that the company is really able to reduce production costs optimally in 2018.  


2020 ◽  
pp. 73-75
Author(s):  
B.M. Bazrov ◽  
T.M. Gaynutdinov

The selection of technological bases is considered before the choice of the type of billet and the development of the route of the technological process. A technique is proposed for selecting the minimum number of sets of technological bases according to the criterion of equality in the cost price of manufacturing the part according to the principle of unity and combination of bases at this stage. Keywords: part, surface, coordinating size, accuracy, design and technological base, labor input, cost price. [email protected]


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