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Heuristic
Published by Universitas 17 Agustus 1945 Surabaya
ISSN : 16938232     EISSN : 27231585     DOI : https://doi.org/10.30996/heuristic.v22i1
Core Subject : Engineering,
Engineering Industrial & Manufacturing Engineering
Jurnal HEURISTIC is published biannually, in April and October, by Industrial Engineering Department, University of 17 Agustus 1945 Surabaya. Jurnal HEURISTIC aims to: 1. Promote a comprehensive approach to industrial engineering incorporating viewpoints of different disciplines. 2. Strengthen academic exchange with other institutions. 3. Encourage scientist, practicing engineers, and others to conduct research and other similar activities. Scope of the Journal: Optimasi; Ergonomi; Manufaktur; Ekonomi & Manajemen; Logistics and Supply Chain; Data Mining; Analisa Keputusan.
Arjuna Subject : Teknik (semua kategori) - Tenik Industri dan Manufaktur
Articles 92 Documents
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ANALISIS KUALITAS PADA PRODUKSI LABELSTOCK KERTAS HVS DI PT “X” Purtomo, Tjahjo
Heuristic Vol 11 No 01 (2014)
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30996/he.v11i01.612

Abstract

PT. "X" one of the manufacturing industry engaged in the manufacture of paper labels,release liner and packaging tape, and while also receiving another product label orders. Theprocess of coating on this company using wet glue placed on release paper is then dried using adryer, so that the glue dries quickly, and then combined with certain items. In order toguarantee the quality of products, the company implemented a control chart X and R are used tomeasure the uniformity of the thickness of the glue on all sides, and the cause and effectdiagram is used to infer the cause of the difference in the thickness of the glue on labelstockproduction.With the above method, the obtained results that the Lower Control Limit 20 LimitControl Over 22, and the target of 21. Cp value of 0.19 (Cp < 1) means that the process is notcapable. While the resulting Cpk value of 0.05 (Cpk< 1), we conclude that the thickness of theglue is not capable or not of accuracy and precision. The cause of differences in the thickness ofthe glue is supposedly 5 factors, namely human factors, raw materials, machines, methods andenvironment. The cause of differences in the thickness of the glue is supposedly 5 factors,namely human factors, raw materials, machines, methods and environment.Kata kunci : Pengendalian Kualitas, Labelstock
POTENSI EKSTRAK BUNGA ROSELLA (Hibiscus sabdariffa L.) SEBAGAI PEWARNA DAN PENGAWET ALAMI PADA JELLY JAJANAN ANAK Handarini, Kejora
Heuristic Vol 11 No 02 (2014)
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30996/he.v11i02.617

Abstract

Jelly is a highly preferred snack of children, but was reported that jelly products sometimes containing a non food grade dyes and harmful preservatives, whict is’s used for textile processed usually. Rosella flower extracts was containing antibacterial activity such as alkaloid, saponin tanin, and high anthocyanin that could be nature dye. The purpose of this study is to determine how the optimal concentration of roselle flowers extracts can be applied to jelly as a natural dye and preservatives. The methods were: a. extraction of rosella flower. b. application of an extract rosella flower onto the jelly product (the treatments are A0: 0 %A1 : 0.5 % , A2 : 1 % , A3 : 1.5 %) and then storage at refrigeration temperature for 0, 5, and 10 days .Parameters measured were the Total Plate Count (TPC), total mold-yeasts, total coliforms, and product color observations. The results showed for the storaging in 0 to 5 days, roselle jelly with various concentrations have indigenous microbial contaminants (the TPC, mold- yeasts and coliforms) is smaller than the control ( A0: 0% ). While the 10-day storaged, the TPC values , molds - yeasts and coliforms in jelly with roselle extracted was lower than controls, but for all treatments had an exceeding value than the microbiological standards. The results of colour with organoleptic test showed for 0 to 5 days of storage refrigerator, showed that roselle jelly A3 ( 1.5 % ) has the best value compared to other treatments, the value of a little love to love ( and its value is higher than controls). On the 10th day of storaged, for the treatment of roselle jelly A1, and A2 has a value of color under control, while the A3 is equal to the control. Based on the microbiological and organoleptic tests, the best roselle jelly is A3 sample and 5 days storaged in the refrigerator.Kata Kunci: Rosella, pengawet alami, pewarna alami, jelly
PENERAPAN SISTEM MANAJEMEN KESELAMATAN DAN KESEHATAN KERJA OHSAS 18001:2007 PADA PELAKSANAAN PROYEK PEMBANGUNAN FLY OVER PASAR KEMBANG SURABAYA Lokajaya, I Nyoman
Heuristic Vol 12 No 01 (2015)
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30996/he.v12i01.622

Abstract

The purpose of this study was (1) Know the process of applying for K3 management system development projects Fly Over Flower Market Surabaya, (2) Getting the elements associated with OHSAS 18001:2007. From the analysis it was found that (1) monitoring and evaluation process of the construction SMK3 Fly Over Flower Market, is only intended to measure the level of implementation of SMK3 in fulfilling the terms of the security, safety and health at the site of construction activities carried out to the service user (PIU ), KDP, and the service provider. By adjusting the results of the monitoring and evaluation SMK3 into the element K3 OHSAS 18001:2007 Management, implementation SMK3 more profitable. The advantage is that its elements can be used to specify the K3 policy, planning, program objectives and K3. (2) Through Gap Analysis calculations using the Radar Chart, obtained K3 Management OHSAS 18001:2007 elements associated with the results of the monitoring and evaluation is an element SMK3 K3 Policy (clause 4.2) with a value of 94.00%, Planning (clause 4.3) with values 96.30%, Implementation and Operation (clause 4.4) with a value of 96.30%, Inspection and Repair (clause 4.5) with a value of 93.34% and Management Review (clause 4.6) with a value of 93.33%. It shows very well and in accordance with the implementation of the management system K3 is done through monitoring and evaluation.Kata kunci : fly over, gap analysis, OHSAS
PENINGKATAN KUALITAS ABON NANGKA MUDA DENGAN SUBSTITUSI TEPUNG TEMPE. KAJIAN DARI KANDUNGAN PROTEIN DAN TINGKAT KESUKAAN KONSUMEN Rosida, Dwi Agustiyah; Widodo, Richardus
Heuristic Vol 12 No 01 (2015)
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30996/he.v12i01.627

Abstract

In recent days, a modern society especially those who live in town, trend to consumption more nutritious food with low in calorie and cholesterol free. Synthetic “abon” made from young jackfruit is one of good vegetable food which are have potentially prized to develop. The lack of protein, can be handled by protein fortification. Tempe is one of Indonesian traditional food with rich in protein can be considered as fortification agent. Research on tempe flour as fortification agent of young jackfruit “abon” has been done. The purpose of the research is to know how many tempe flour can be added to got optimum acceptability of the product. The experiment carried out in 3x2 factorial randomized block design. The first factor are 2,5 %, 5 %, and 7,5 % w/w of tempe flour, and the second factors are treatment of tempe before floured, that is steamed and not steamed. Variance analysis of protein content shows that 1) there is significant difference among the 3 level of first factor (P<0.01), either of the 2 level of the second factor (P<0.01). Combination of 7,5 % w/w and not steamed tempe flour give the best result with 9,886 % in protein content. 2) there is not significant interaction effect between the two factors analyzed against the protein content (P>0.05). 3) Sensory test of texture and flavor show no difference score among the treatments (P>0.05) while for the color of the product, the panelist give different score (P<0,01)Kata Kunci : abon nangka muda, fortifikasi, tepung tempe
STRATEGI PENGENTASAN KEMISKINAN DI JAWA TIMUR MELALUI PENGEMBANGAN USAHA MIKRO KECIL DAN MENENGAH (UMKM) Putri, Erni Puspanantasari; pardi, Su; Lokajay, I Nyoman
Heuristic Vol 12 No 02 (2015)
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30996/he.v12i02.632

Abstract

The purpose of this study were (1) Identify the factors that impede business development of micro, small and medium enterprises in East Java, (2) identify strategies flagship relevant for micro, small and medium enterprises in East Java, (3) Develop a strategy formulation the development of micro, small and medium enterprises in East Java as the alleviation of poverty. by using the SWOT method, it can be concluded that (1) the factors that impede business development of micro, small and medium enterprises in East Java is the low marketing,Jurnal Teknik Industri HEURISTIC, vol 12, no 2, Oktober 2015, halaman 142-156 ISSN: 1693-8232143promotion is still lacking, innovation competitor products quickly, the condition of the competitors are very strict, government policy to reduce public subsidies, high inflation, weak niai rupiah against the $ US, demands a quality product at a price that is increasingly Competitive, the decline of the country's economy, political situation in the country is not stable, (2) Strategy flagship relevant to micro, small and medium enterprises in East Java Growth strategy, showed no growth and product diversification efforts, micro, small and medium enterprises, Stability strategy, shows the strategy adopted without changing the strategic direction set. (3) The formulation of the development strategy of micro, small and medium enterprises in East Java as the fight against poverty is (a) Creating opportunities for new markets, for example, Open gallery to accommodate everyone who wants to learn about batik, designs, colors and patterns are new , Producing cotton batik arise, fabric doby, woven fabrics batik, fabric paris (semi ciffon), silk, production of herbal medicine in the form of sachets, Forms/ways of marketing, micro, small and medium enterprises : exhibitions, internet, stand at the site of micro, small, and intermediate, product marketing process: www. petismadura.com through on line, by telephone, came to the site of micro, small and medium enterprises, (b) Measures craftsmen of micro, small and medium enterprises to face competition, for example, cotton batik patterned producing contemporary craftsmen who work in Tanjungbumi invited back to the village in Sampang, designs, colors and patterns are new, it needs creative freedom batik, and according to standard batik, development capital, collecting batik former, For medicinal products: produce products with packaging per ounce, for product paste: improved quality, competitive prices, CSR for young, expanding the image to the public, To handicraft: should innovation models, especially the products of bags and wallets, information from the Internet, (c) Efforts craftsmen that demand the products increases, for example, promotion of one to the other, for batik products: create a new motive, the exhibition, plus employee and machine, plus shops, for the product chips fish : without chemicals, for products skull cap: rent for wholesale, product diversification is koko, exhibits 10 times per year.Keywords: SWOT, micro small and medium enterprise, poverty alleviation
EVALUASI METODE PENGUJIAN ANGKA LEMPENG TOTAL MENGGUNAKAN METODE PETRIFILM AEROBIC COUNT PLATE TERHADAP METODE UJI SNI 01.2332.2006 PADA PRODUK PERIKANAN DI LPPMHP SURABAYA Hartati, Fadjar Kurnia
Heuristic Vol 13 No 02 (2016)
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30996/he.v13i02.877

Abstract

The study aims to evaluate the testing methods Total Plate Count (ALT) which is easierand faster is Petrifilm Aerobic Plate Count (PAPC) against resistance in TPC testing infishery products, as well as compliance with the Indonesian National Standard (SNI) 012332.3-2006.This study held in Laboratory Quality Control and Testing of FisheryProducts (LPPMHP) Surabaya, East Java. This study three types of cultures breed bacteriaand 24 types of fishery products by using two methods of testing, as the reference test SNI01-2332.3-2006 and in comparison to the PAPC. The results of the test, then analyzedusing statistical calculations to evaluate the suitability of the ISO 4833 test method.Finally, note that ALT testing using PACP in accordance with ISO 01-2332.3-2006 as astandard method of testing, and has a good fit in the ALT test with a sample of fisheryproductsKeywords : total plate count, ISO 4833, petrifilm aerobic count plate, SNI. 01-2332.3-2006
EVALUASI SIFAT FISIKOKIMIA TEMPE WARNA DENGAN PENGGUNAAN KUNYIT SEBAGAI PEWARNA ALAMI DAN PENAMBAHAN SDB ( Sabouraud Dextrose Broth) Sihmawati, Rini Rahayu; Panjaitan, Tiurma W. Susanti; Rosida, Dwi Agustiyah
Heuristic Vol 14 No 01 (2017)
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30996/he.v14i01.1041

Abstract

This research is determining the impact of adding natural dyes turmeric and Sabouraud Dextrose Broth (SDB) against physicochemical of tempeh. Benefits of the research is to support the food security program through increased value-added tempeh using natural dyes. This research was conducted by the method of experimental design was completely randomized. The first treatment is concentration of turmeric (K) and the second is the concentration of SDB. The first consists of three concentration levels (0.5% , 1% and 1.5%), and the second also consists of three concentration levels (1% , 2% and 3% ) and repeated 3 times. The test results chemically the protein , fat and ash contents between the tenth treatment showed not significant (P> 0.05), the test results of water content between the ten treatments of at least two show difference (P <0.05), also carbohydrate (P <0:01).Keywords: physicochemical, colored tempeh, turmeric, natural dyes, SDB
MODEL INTEGRASI 2 STAGE DATA ENVELOPMENT ANALYSIS-MONTE CARLO UNTUK PEMILIHAN PARTNER SUBKONTRAK Putri, Maulin Masyito
Heuristic Vol 14 No 02 (2017)
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30996/he.v14i02.1172

Abstract

With cheaper consideration, product subcontracting often becomes an option. So far the selection of subcontractors is based solely on the price of the cheapest contract offered. Apparently not enough, there are still some input and output variables that must be considered. So far, the existing methods still have some weaknesses. The classic DEA model often fails to work effectively because it is very sensitive to statistical changes. Meanwhile the AHP and DEMATEL methods are not appropriate when the unequal monthly risk frequency is encountered. So we need to develop new method, that is integration 2 Stage Data Envelopment Analysis (DEA) -Monte Carlo. Using VBA-excel based simulation assistance, it can be concluded that the most appropriate subcontract partner for UV process is DMU 1A (Central Coating) while subcontract partner for embossed process is DMU 1B (Super Indah Langgeng) and the most appropriate subcontracted laminating process partner is DMU 1C is (Central Coating), each having the best productivity with low risk level. Key Word: Subcontract Selection, Eficiency, Productivity, 2 Stage DEA-Monte Carlo
CROSS ENTROPY UNTUK OPTIMASI LAGRANGE MULTIPLIERS PADA SUPPORT VECTOR MACHINES SEBAGAI MODEL PREDIKSI FINANCIAL DISTRESS ., Herlina
Heuristic Vol 13 No 02 (2016)
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30996/he.v13i02.878

Abstract

The competence in predicting financial distress becomes an important research due tothe advantage in preventing companies financial failure. Besides, financial distressprediction model will give benefit to the investors and creditors. This research developa financial distress prediction model for listed manufacturing companies in Indonesiausing Support Vector Machines (SVM). Mathematically, SVM is formulated in the formof quadratic programming, which requires high computational time in finding theoptimal solution. In this research, Cross Entropy (CE) is used to optimize one of theSVM’s parameter that is Lagrange multipliers to find the optimal solution or nearoptimal solution of dual Lagrange SVM. The accuracy of the prediction model andcomputation time will be compared between standard SVM and CE-SVM. Finally, notethat the CE-SVM can solve classification problems in computing time 9.7 times shorterthan the standard SVM with good accuracy results. Keywords: cross entropy, lagrange multipliers, support vector machines, financialdistress
PENJADWALAN MESIN PADA SISTEM PRODUKSI FLOW SHOP UNTUK MEMINIMALKAN KETERLAMBATAN Saputro, Irwan Adi; Mundar, Siti i
Heuristic Vol 14 No 01 (2017)
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30996/he.v14i01.1043

Abstract

The high rate of demand and the many type of products that have to be made, is a separate issue for PT Bioli Lestari. Delays in delivery of goods to consumers become a daily sight. Production scheduling in accordance with corporate characteristics needs. This research tries to find the method of scheduling according to the characteristics mentioned above. By the method of comparison between conventional method and repeated production scheduling method, ie Dannenbring method, Palmer method and Campbell Dudek Smith method, finally known that Dannenbring method resulted in the number of delayed work of 4 jobs with mean lateness of 8826.53 minutes medium Palmer method there are 5 jobs that are late With Mean lateness 4512.97 minutes, and on the Campbell Dudek Smith method the amount of work delayed were 4 jobs with mean lateness 9162 minutes. And the other side known that with conventional method there ware 9 jobs late. Based on that, then the corresponding method is Campbell Dudek Smith method with the number of jobs that are delayed ware 4 jobs and the mean lateness 9162 minutes.Keywords: scheduling, flow shop, tardyness, Repetitive Production.

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