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All Journal PERFORMA : Media Ilmiah Teknik Industri

I Wayan Suletra

Program Studi Teknik Industri, Universitas Sebelas Maret, Surakarta

Author-ID : 3769700

Engineering Industrial & Manufacturing Engineering

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Optimasi Pengalokasian Sampah Wilayah Ke Tempat Pembuangan Sementara dengan Model Integer Linear Programming (Studi Kasus Kota Surakarta) I Wayan Suletra; Eko Liquiddanu; Sigit Bagus Pamungkas
Performa: Media Ilmiah Teknik Industri Vol 8, No 1 (2009): PERFORMA Vol. 8, No. 1 Maret 2009
Publisher : Industrial Engineering Study Program, Faculty of Engineering, Universitas Sebelas Maret

This reserach proposes an integer linear programming model for the allocation of municipal solid waste to the optimal transfer station. This model involves trade-off between two kind of transportation cost, that is transportation cost from village to trasfer station and cost from transfer station to landfill/treatment center. Branch-and-bound method is used to find optimum decision, which transfer station should serve which village.This model is applied to city of Surakarta that consist of 596 village and 62 transfer stations. From analysis we know that this model can reduce total transportation cost per day by 5,38% and balances the accumulated waste in all trasfer station

Analisis Stabilitas dan Kapabilitas Proses Spinning Benang Katun dengan Metode Six Sigma (Studi Kasus PT. Primissima) Sahrial Amri; I Wayan Suletra; Fakhrina Fahma
Performa: Media Ilmiah Teknik Industri Vol 4, No 1 (2005): PERFORMA Vol. 4 No 1, Maret 2005
Publisher : Industrial Engineering Study Program, Faculty of Engineering, Universitas Sebelas Maret

As a textile company which produces grey, PT. Primissima surely needs high quality yarn which is also produced in its factory as its main basic material. Decline in yarn quality that significantly happened on May until August 2004 causes negative effects to the company, especially in customer satisfaction. Analysis of process stability and capability is should be done to prove and explain the problem, particularly on the existing spinning III process. Analysis using Six Sigma method begins with identifying customer needs, then mapping customer needs into the critical to quality characteristics (CTQ), determining CTQ priority level based on customer importance rating and customer satisfaction rating, and last, measuring sigma value, process stabilityand process capability of the CTQ top priority level. The result that focused on unevenness yarn CTQ shows, with sigma value of 4.07 sigma, process condition isn’t stable and capable enough to meet the company’s specification target. From the process analysis is also obtained information that many factors like environment, machine, tool, process, material, employee, and measurement system are supposed causing the problem. Improvement and control suggestions are also given here.

Penentuan Lokasi Ideal SD dan MI Se-Kecamatan Pejagoan Kabupaten Kebumen dengan Menggunakan Model P-Median, P-Center, dan Max Covering Ike Nurcahyono; I Wayan Suletra; Eko Liquiddanu
Performa: Media Ilmiah Teknik Industri Vol 9, No 2 (2010): PERFORMA Vol. 9, No 2 September 2010
Publisher : Industrial Engineering Study Program, Faculty of Engineering, Universitas Sebelas Maret

Pejagoan district is an outskirt near the central administration of Kebumen Regency. This position causes some people prefer to go to city for schooling. This condition becomes one of the factors for decreasing number of students that apply to Pejagoan district. Many schools lacks of students. Kebumen Regency education department has a plan to reduce some schools that do not fulfill the criteria of minimum number of students. Determining ideal location and number of schools has to be appropriate in order to does not cause problems in the future. In this study, the determining of location and the number of school in Pejagoan district are conducted by identifying the location and the distance of students’ house to the location of current elementary schools that considered as candidate locations. The school locations and optimum number of school are determined by using three models, p-center, p-median, and maximal covering model. These are conducted to identify the performance of each model and compare all of them. The calculation result concluded that p-median model is the most appropriate model to solve the problem. The optimum number of school is 26 and the average distance of students to the nearest school is 215.98 meters with deviation standard 138.08 meters, and the furthest distance is 1229.3 meters.

Usulan Perencanaan Sampling Penerimaan Berdasarkan Kecacatan Atribut dengan Metode Mil Std 105E pada Proses Penyamakan Kulit Lobes Herdiman; I Wayan Suletra; Amithya Dwi Hapsari
Performa: Media Ilmiah Teknik Industri Vol 7, No 1 (2008): PERFORMA Vol. 7, No. 1 Maret 2008
Publisher : Industrial Engineering Study Program, Faculty of Engineering, Universitas Sebelas Maret

Plan acceptance of sampel with method of Military Standard 105E is prosedure which used in decision making to product yielded by company, background of this method him is to accommodate accomplishment of producer ekspektasi and consumer in inspection of[is quality of product with acceptance mechanism or deduction of lot. Pursuant to from amount of sampel proposals, existence of improvement of percentage of probability for normal inspection at quality of I mount 24% and quality of II mount 10%, tight inspection at quality of I mount 26% and quality of II mount 12%, diffuse inspection at quality of I mount 23% and quality of II mount 4%. While SOP proposal have the character of independent to the each category so that deduction of lot earn happened at every category not requiring accumulation of amount of found defect as SOP early.

Identifikasi Karakteristik yang Mempengaruhi Kesuksesan Agen dan Atribut Asuransi yang Mempengaruhi Nasabah Masuk AJB Bumiputera 1912 Cabang Kediri Ana Kusumawati; Roni Zakaria R.; I Wayan Suletra
Performa: Media Ilmiah Teknik Industri Vol 3, No 1 (2004): PERFORMA Vol. 3 No 1, Maret 2004
Publisher : Industrial Engineering Study Program, Faculty of Engineering, Universitas Sebelas Maret

One of the developing service industries developing in Indonesia economy which is undergoing crisis is insurance industry, whose productivity and business quality are depended on agents’ capability as the main doer who are corresponding with marker and characteristic from this insurance. This research attempts to find out agent’s profile and characteristic, perception given from customer and also insurance’s attributes that influence a customer to join.The measurement used on this research is Likert scale with the valid questionnaires distributed to 117 respondents agents and 46 respondents customers from AJB Bumiputera 1912 branch Kediri. The results shows that successful agents’ profile generally women(65,12%), age between 35-50 years old(75%), come from East Java(58,26%), married(65,48%), have S1 degree(85,71%), and experience on this field more than 6 years(88%). By using discriminate Analysis it results that successful agents have knowledge and higher assertiveness than less successful agents, but owning lower recognition motivation. According to the customer, there is no difference between successful and less successful agents. By using Pareto diagram, we can conclude that agents are the most important attribute that influence customer to join with the insurance.

Analisa Kelayakan Pabrik Neon Elektronik (NE) Sukoharjo Nina Lutfia; I Wayan Suletra; Fakhrina Fahma
Performa: Media Ilmiah Teknik Industri Vol 3, No 1 (2004): PERFORMA Vol. 3 No 1, Maret 2004
Publisher : Industrial Engineering Study Program, Faculty of Engineering, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/performa.3.1.11128

The increasing of electricity base rates initiate people to choose the energy saving lamp in order to decrease their electricity bill. It impacts the demand of energy saving lamps increase. Neon Electronic produces such an energy saving lamp with the electronic circuit called ballast electronic. Neon Electronic plan to develop the factory and expand the marketing area.This research is aimed to know the feasibilities of the Neon Electronic (NE) development plan. The feasibilities study covered a research on market aspects, production and operastional aspects, and financial aspects.Based on the result of market aspects, this development plan is feasible; because of the people demand. so, there is an opprtunity to implement this plan. Despite from that there is a particular interest factors such as the quality of Neon Electronic is higher than the around competitors.From the production and operational aspects, this plan is also feasible to continue because there is no barrier on the availability of the machines and tools and another production fasilities, the development fund, and human resources.With the assumption that the interest rate is 16% and all the product sold, the result of investment criteria; NPV is Rp. 167.778.623, IRR = 98% which is bigger than the interest rate, Discounted Payback Period = 1 year 3,78 months, no cash deficit, the Profitability Index above one which is 2,86, and the Break Even Point (BEP) 2004 is Rp. 307.879.319. The financial aspects point of view recommends this development plan is possible to continue.

Co-Authors Amithya Dwi Hapsari Ana Kusumawati Eko Liquiddanu Fakhrina Fahma Ike Nurcahyono Lobes Herdiman Nina Lutfia Roni Zakaria R. Sahrial Amri Sigit Bagus Pamungkas

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