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IPTEK Journal of Proceedings Series
Published by Institut Teknologi Sepuluh Nopember Surabaya
ISSN : 23546026     EISSN : -     DOI : -
Core Subject : Science,
Computer Science & IT
IPTEK Journal of Proceedings Series publishes is a journal that contains research work presented in conferences organized by Institut Teknologi Sepuluh Nopember. ISSN: 2354-6026. The First publication in 2013 year from all of full paper in International Conference on Aplied Technology, Science, and Art (APTECS). It publish one time a year after the held of APTECS event.
Arjuna Subject : -
Articles 1,079 Documents
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Development of Monitoring Tool to Support Lean Manufacturing Implementation Septi Ayu Angrayni; Putu Dana Karningsih
IPTEK Journal of Proceedings Series No 6 (2020): 6th International Seminar on Science and Technology 2020 (ISST 2020)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2020i6.11157

Abstract

Lean is an approach that is carried out continuously to identify and eliminate waste or other activities that do not provide added value. Many companies have implemented lean concepts and got the benefits such as reduced cycle time, reduced operational costs, improved product quality, and other benefits. Although it provides many benefits, there are some weaknesses in implementing lean, one of which is due to the lack of monitoring. After the initial implementation, the process has never been reviewed and is rarely checked to ensure its implementation. Monitoring lean implementation requires tools that can help monitor work more efficiently. There are no specific tools that can be used to control and oversee lean implementation in the company. For this reason, this research will develop a tool for monitoring lean implementation. The tools to be developed adopting the logic of several methods, namely Quality Function Deployment (QFD), the framework of three matrix houses in lean implementation, and the House of Risk (HOR). This Lean monitoring tool is used to ensure that the corrective actions recommended for lean implementation are implemented. The Lean monitoring tool consists of three matrices that offer the ability to identify potential failures, the root causes of failures, and solutions to deal with lean implementation failuress.
Quality Control of Ink Bottles in Efforts to Control Defect Products in Candi Plastik Home Industry Tri Ilma Sari; Moses Laksono Singgih
IPTEK Journal of Proceedings Series No 1 (2020): The 1st International Conference on Business and Engineering Management (IConBEM)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2020i1.10860

Abstract

Quality is one of the most important things in terms of competition between companies. Products that are not of quality will be rejected. Many home industries lose competitiveness in terms of quality, it could be due to inaccurate machining. This causes a lot of product defects. A dozen years this home industry was established, but has not yet met the minimum target defect target of products set by consumers. Quite a lot of products have to be replaced and reworked. So we need a tool to control quality and detect the causes of product defects and then repair the cause. Seven tools are the seven basic tools that are able to solve the quality problems faced by production. Failure Mode Effect Analysis (FMEA) is a tool to detect the causes of production failures. The application of these two tools is expected to be able to control quality, meet the minimum specifications of consumers, detect the causes and correct the causes, increase productivity, reduce losses, and increase consumer confidence. The results of this study are seven tools and FMEA able to control product defects, the percentage of product defects produced by 22.5%, the cause of product defects is caused by 4 factors namely machinery, humans, methods, and raw materials. Whereas based on FMEA analysis, the main cause of product defects is the machine, and proposed control settings of the machine.
Analysis on Quality of Service at Design and Engineering Department by Using Servqual, IPA, and QFD Methods Heru Indrawidjajanto; Bambang Syairudin
IPTEK Journal of Proceedings Series No 1 (2020): The 1st International Conference on Business and Engineering Management (IConBEM)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2020i1.11337

Abstract

PT. Semen Indonesia develops the cement business in Indonesia by striving to be at the forefront in the world of the cement manufacturing business, as well as trying to be a calculated player in the cement derivative business. To achieve this goal, the Department of Design & Engineering, as a supporting function, always strives to provide the best service for customers, namely other work units within PT. Semen Indonesia group. There are 20 service attributes used as indicators in the questionnaire, covering five dimensions of service quality, namely tangible, empathy, responsiveness, reliability, and assurance. The measurement of the level of customer satisfaction of the Design & Engineering Department is carried out by Service Quality (Servqual), Importance Performance Analysis (IPA), Quality Function Deployment (QFD) methods. The results show that based on Servqual analysis, in general, customers are still not satisfied with the resulting performance. Based on the results of the IPA analysis, five service attributes are the top priority for improvement, namely: coordination with customers, completion of Engineering work according to the agreed time, solutions to customer problems, able to meet customer needs, and product engineering by customer desires. Based on the results of the QFD analysis, there are six strategic steps in the work program carried out to improve service quality in the Design & Engineering Department.
Integrated Modelling of In-Bag Fertilizer Handling Process and Forklift Needs to Reduce Waste in Sales Warehouses of PT Petrokimia Gresik Bachtiar Rosihan Aghda; Nurhadi Siswanto
IPTEK Journal of Proceedings Series No 3 (2020): International Conference on Management of Technology, Innovation, and Project (MOTIP) 2
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2020i3.11110

Abstract

PT. Petrokimia Gresik is one of the most outstanding fertilizer manufacturers with 5 sales warehouses. The Company organizes its distribution system to ensure adequate distribution to the right target. To plan the process of handling in-bag fertilizer, resources such as contract workers, forklifts, and trucks are needed. However, there are numerous wastes associated with the handling process, which is shown by forklift idle time due to the bagging, handling, and loading processes. Therefore, this research identifies the waste that occurs using the Value Stream Mapping (VSM) method with the 5 why’s tool. This research also uses simulation to analyze and validate the recommendations. Data obtained through questionnaires showed that waste occurs due to waiting time by 28.2% and unnecessary motion by 22.7%. The described Process Activity Mapping (PAM) tools show that fertilizer delivery has cycle times of 9030 seconds, with value-added activities of 66%. The analysis of 5 why’s tools shows that the low handling speed causes waste at the bagging and loading processes and the unnecessary motion of forklift-3. The recommendations according to the future state Value Stream Mapping (VSM) are adding the contract worker in the bagging process, removing forklift-3, and adding the contract worker in the loading process. Therefore, the value-added activity increases to 75.8% and accelerates the delivery cycle time to 7733 seconds. The validation results using the simulation shows that forklift-3 can be eliminated because it has a low utilization value of 16.4%, merging the activity of sewing services of 3% with a decrease in transfer time from 7.9 hours to 2.9 hours for one delivery cycle. In conclusion, the removal of all forklift-3 in 5 sales warehouse results shows that the company can save rental costs by Rp.4,772,376,000/year.
Fault Estimation on Induction Motor Based on Stator Inter-Turn Fault Bambang Lelono Widjiantoro; Syahrul Munir; Katherin Indriawati
IPTEK Journal of Proceedings Series No 6 (2020): 6th International Seminar on Science and Technology 2020 (ISST 2020)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2020i6.11148

Abstract

Since the 19th century, the use of electric motors continues to grow. Nowadays electric motors have been widely used in various fields of industry. One type of electric motor that is often used is an induction motor. Induction motors work in the presence of induced currents due to the relative difference in rotor rotation with rotating magnetic fields. Induction motors are preferred for industrial purposes because of low cost, easy to maintain, and high efficiency. Induction motors that are used continuously can experience several types of fault. The existence of fault can affect the performance of the induction motor. One of the fault that often occurs in induction motor is the result of stator inter-turn fault. This fault is caused by the gradual deterioration of insulation in the stator winding which cause a short-circuit. Sooner or later, this fault can cause damage to the induction motor in a short time if left unchecked. So, it is very important to monitor the fault in real-time. Therefore, this research proposes a fault estimation method on induction motor. The design of fault estimation based on particle filtering and extended state space equations is used to estimate the stator inter-turn fault. The effectiveness of this approach is validated by use of a computer simulation with using two fault signal represented by η_cc ramp and step signal. The performances of this fault estimation are measured by RMSE and with using 500 particles has smallest RMSE value, which are 0.0112 and 0.0124 for dq current fault when using η_cc ramp signal and 0.2373 and 0.2367 for dq current fault when using η_cc step signal.
Evaluation of Real Estate Development Process in Sharia Housing Based on The Application of The Ideal Islamic Housing Concept Perdana, Angga; Setijanti, Purwanita; Cahyadini, Sarah
IPTEK Journal of Proceedings Series No 6 (2020): 6th International Seminar on Science and Technology 2020 (ISST 2020)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2020i6.9190

Abstract

The ideal Islamic housing concept should implement Islamic values holistically in the sharia housing project. The development process of sharia housing looks at housing as not merely a product but also implements shari’ah marketing methods and opens up opportunities for sharia investment in housing finance. Sharia housing with an ideal Islamic housing concept accommodates sharia values in various stages of development, starting from the initial idea formation, feasibility studies, planning and design, funding schemes, employment contracts, marketing selling and buying methods, to estate management. In housing development, the role of investors is important to control the quality of a product that is being developed. A case study strategy was used, with descriptive statistical analysis in evaluating the development process of the Islamic housing concept. Medina Residence 1 was taken as the case study based on their promotion in which they applied the Islamic housing concept in the development process. The evaluation result of the application Islamic housing concept in the development process at Medina Residence 1, shows that the Islamic housing concept has been applied and received a very satisfying response from investors. Therefore, sharia housing developers need to pay attention to it to implement Islamic value in housing development holistically.
Selection of Operation and Maintenance Stategic Partner Using AHP-VIKOR Model Maryono Maryono
IPTEK Journal of Proceedings Series No 3 (2020): International Conference on Management of Technology, Innovation, and Project (MOTIP) 2
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2020i3.11231

Abstract

In order to increase CFSPP (Coal Fired Steam Power Plant) ABC actual EAF (Effective Availability Factor) from 76% in 2019 to designed EAF 85% by taking into consideration of investment funding hardship, PT.ABC initiate to select O&M (Operation and Maintenance) Strategic Partner, but it is not an easy decision and is associated with complexity. The purpose of this paper is to propose multi criteria decision making (MCDM) approach to effectively select the best partner out of 5 pre-selected partner candidates. The approach using AHP to calculate criteria weights, then VIKOR to get the final ranking result. The criteria and sub criteria define from experts’ discussion and literature review. Weights of 3 main criteria namely partner, collaboration and performance-oriented criteria are 0.113, 0.446 and 0.441. Alternative A1 is the first rank. There are 11 sub-criteria, with 3 biggest weights: 0.225 for project expectation, 0.162 for trust and 0.119 for technological capability. Project expectation and technological capability are from performance-oriented criteria while trust is part of collaboration-oriented criteria. This study can be useful for researchers to better understand of partner selection process and MCDM approach in theoritically, as well to companies in designing better partner selection system.
Designing a Master Program to Cope with the New and Next Normal (VUCA World, Industry 4.0, and Covid 19): a case study Gembong Baskoro
IPTEK Journal of Proceedings Series No 3 (2020): International Conference on Management of Technology, Innovation, and Project (MOTIP) 2
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2020i3.11078

Abstract

It is not surprisingly that the combination of VUCA World and fast development of Industry 4.0 will become the era of new normal for any organization including but not limited to industries. This new normal will become either Threats and or Opportunities for any organization. Whatever it is, organizations should prepare themselves to face this era of new normal, especially to cope with (the unpredictable) uncertainties, such as the pandemic of Covid 19 and maybe other to come, that impact to the existing operation and future opportunities. At the end the uncertainties directly or indirectly will impact to the sustainability of the business. Therefore, this paper presents a strategic initiative, in term collaboration, between academic and professional to design a master program that cope with this new normal. This paper elaborates the concept of developing skills, upskilling and or reskilling, required to be able to handle uncertainties and complexities in the era of new normal. The concept is simply combining strengths of professional and academic and internalized in a tailored master education program. The concept then operationalized in a multi discipline master program as a case study in a top-notch private industry in Indonesia.
Space Flexibility : A Design Concept for Accomodating Spatial Invasion in Communal Flat Joshua Gama Wastara; Arina Hayati; I Gusti Ngurah Antaryama
IPTEK Journal of Proceedings Series No 6 (2020): 6th International Seminar on Science and Technology 2020 (ISST 2020)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2020i6.11116

Abstract

Housing needs are an urgent necessity for middle income residents in several areas in Surabaya. Thus, there are several dense settlements that were built illegally. The government provides the solution of simple rental flats (Rusunawa) as their substitute residence. Relocation of illegal settlement to rusunawa is often rejected by the inhabitant because oftentimes the design does not accommodate basic needs according to inhabitant’s perceptual and subjective view. Space invasion as a lifestyle expression of informal settlement is often overlooked when designing a simple, low-cost apartment buildings (Rusunawa). The purpose of this study is to propose a flexible architectural concept, based on observations of space invasion exploration gathered from field studies. This study is initiated from an exploratory thinking which drives the formation of the architectural design-based research to determine the design issue, hypothesis and design mapping based on the method of conceptual design. Literature and precedent studies are obtained to propose the first hypothesis that will be applied and explored through field research investigation. The field study is conducted at the riverbank’s settlement of Medokan Semampir Indah Tangkis Surabaya, which has a creative pattern and expression of space invasion. Our hypothesis states that spatial invasion activities are ways of expressing the lifestyle of people who live in riverbanks settlement. The Spatial invasion is expressed in domestic, social and economic activities. The results are then used as main idea or primary force for the concept design of collective residence, and to provide design criteria and parameters that suits to the needs and desires of the inhabitants.
A Case Study of Applying Customer Segmentation in A Medical Equipment Industry Iqbal Grady Favian; Erma Suryani
IPTEK Journal of Proceedings Series No 3 (2020): International Conference on Management of Technology, Innovation, and Project (MOTIP) 2
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2020i3.11139

Abstract

The purpose of this paper is to apply LRFM (length, recency, frequency, monetary) for customers in the medical equipment industry and identify differences in each customer segment. This study uses LRFM and clustering to segment its customers. This research uses transaction data of the medical device industry in Indonesia. This data will be extracted for the length, recency, frequency, and monetary (LRFM). The optimal cluster obtained from the validation process is four which will be used as a basis for customer segmentation. This study uses the K-Means algorithm as a clustering method and Decision Tree as a classification method and the application of IF-THEN rules. The segmentation process will be identified based on LRFM criteria in each segment that has been formed and will form a marketing strategy that is appropriate for the company. The results obtained from this study are four customer segments based on LRFM with each segment given a profile name as: Best, Frequent, Low and Uncertain. This study provides guidance on customer identification based on LRFM that can be used by medical equipment companies to develop strategies that are in accordance with the criteria of each segment that has been obtained to improve customer relationships management system and new ways of marketing products.

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