IPTEK Journal of Proceedings Series
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.
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<![CDATA[Analysis of the Relationship of Late Payment Customers' Characteristics Based on Payment Bills ]]>
<![CDATA[Diah Oktavia]]>;
<![CDATA[Joko Lianto]]>;
<![CDATA[Sutikno Sutikno]]>
<![CDATA[ IPTEK Journal of Proceedings Series No 5 (2019): The 1st International Conference on Business and Management of Technology (IConBMT) ]]>
Publisher : <![CDATA[Institut Teknologi Sepuluh Nopember ]]>
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DOI: 10.12962/j23546026.y2019i5.6285
<![CDATA[An increase number of internet usage has an influence on service operators to be able to provide a variety of services (multi services) and improve internet network technology for their customers. One of them is an Internet Service Provider (ISP) company. The customer's obligation is to pay bills on time in accordance with company's terms and conditions agreed upon at the beginning of the internet installation. However, late payments still occur at least once a year. This affects the company's business processes and finances. While on the customer side, this causes internet isolation. The purpose of this study is to analyze any variables that have a relationship with the late payment based on customer bills. The analytical method used was the Chi-Square test. The number of samples used was 400 customers with purposive sampling technique. In addition, an analysis of the pattern of customer characteristics in bill payments was done to determine whether there was a dependency based on regional mapping in Surabaya using the Morans'I and LISA Cluster Map indexes. The result showed that there was a significant relationship between address, income level, employment status, and payment period with payment status. There was no significant relationship between customer type, subscription package, and educational level with payment status. In addition, it is known that customers tend to make payments above the agreed time period. The mapping results by region showed that there were customer patterns that were clustered and having similar characteristics in adjacent locations. Autocorrelation showed positive dependencies of total income and employment status variables]]>
<![CDATA[Proposed Marketing Communication Strategy to Increase Buyer’s Decision to Buy House (Case Study: PT. Sedulur Guyub Rukun) ]]>
<![CDATA[Radityo Chrisna Adi]]>;
<![CDATA[Sonny Rustiadi]]>
<![CDATA[ IPTEK Journal of Proceedings Series No 5 (2019): The 1st International Conference on Business and Management of Technology (IConBMT) ]]>
Publisher : <![CDATA[Institut Teknologi Sepuluh Nopember ]]>
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DOI: 10.12962/j23546026.y2019i5.6336
<![CDATA[PT. Sedulur Guyub Rukun is a property developer with the main business as a housing developer with premium-class products in Jombang, East Java. the house residence name is Jombang Citra Raya. In recent year, the company faced the decreases in sales as a business problem and this research examine the business issue and solve the issue with the proposed business strategy. The research uses several analytic tools such as internal analysis uses STP, Marketing Mix analysis and In-depth interview, for external analysis uses Five Porter’s forces, Competitor analysis questionnaire with multiple linear regression model. The analytic tools are used to formulate business solution that able to increase customers purchasing decision to buy a house and increase the brand awareness of the company by using a marketing communication strategy. From 100 respondents are used as the sample for the questionnaire, the result finds the most significant factor to influence the buyer’s decision is Products and the least factors are Prices. This research result becomes the reference to build Integrated Marketing Communication (IMC) that consists of advertising, publicity and sales promotion as marketing communication media for the IMC strategy. To implement it, the schedule plan and budget allocation for IMC is proposed.]]>
<![CDATA[Risk Defect on Du Base Frame Product ]]>
<![CDATA[Adriyadhi S, Agyl]]>;
<![CDATA[Singgih, Moses Laksono]]>
<![CDATA[ IPTEK Journal of Proceedings Series No 5 (2019): The 1st International Conference on Business and Management of Technology (IConBMT) ]]>
Publisher : <![CDATA[Institut Teknologi Sepuluh Nopember ]]>
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DOI: 10.12962/j23546026.y2019i5.6373
<![CDATA[During the production process DU base frame product has been found quite a defect occurrence. Defects occurring during the production process of course affect the cost, time and quality of the product production of PT. X, so it is required a handling to overcome the risk of defects that occur so that the product is free from the risk of defects that do not and improve product quality. The method that can overcome the problem above is to predict the risk of product defect by designing a risk management process framework. The risk management planning process is a stage identifying the risk of defects that have occurred or the risk of malformed defects occurred and then conducting a risk-defect analysis, then evaluating the risks of such defects and risk treatment and Monitoring and review. There are also tools and methods used in this risk management study are fishbone and FMEA. Fishbone is used as a tool as a method to cause identification while FMEA is used in risk analysis to determine risk priority number (RPN). From RPN defects that have the highest value will be taken risk evaluation and risk treatment to prevent the same defect. With this research in hopes of the results of quality, cost and production time in DU Base Frame products can remain consistent and give rise to the awareness of the personnel involved in the product manufacturing process. From risk mitigation results found there are 4 out of 56 risk cases that belong to the high-risk category in the process of milling (RPN 288), blasting (RPN 288 & 224) and painting (256). These risks are then conducted advice on the improvements that are discussed with the team and the costumer and the result of defects that occur reduced even eliminated. The importance of the detailed procedures and the awareness of each personnel involved becomes one of the keys to avoid risk in the production process of a product]]>
<![CDATA[Evaluation and Mitigation of Android Application in PT. Aku Pintar Indonesia ]]>
<![CDATA[Lutvianto Pebri Handoko]]>;
<![CDATA[Mokh. Suef]]>
<![CDATA[ IPTEK Journal of Proceedings Series No 5 (2019): The 1st International Conference on Business and Management of Technology (IConBMT) ]]>
Publisher : <![CDATA[Institut Teknologi Sepuluh Nopember ]]>
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DOI: 10.12962/j23546026.y2019i5.6409
<![CDATA[Aku Pintar Indonesia enterprise is one of the educational start-up industries currently developing an Android-based system. System errors could appear in various both the features and administrative processes. The system repair priority could be given to the easiest system error first without taking into account the risk that would arise. The company needed to change its risk management by providing the priority of system repair and considering the effects and frequency of the occurrences. This research aims to help Aku Pintar Indonesia enterprise in choosing the priority of system error repair in order to improve their services to their users. This research used FMEA which allows the risk level of each error modes being assessed. System errors and its frequency were identified by web-based Google Play Console. The disadvantage level appeared from each errors determined by utilizing expert judgment in a Focus Group Discussion (FGD). The risk level of each system errors determined by the frequency of each and the level of the disadvantages, then measure the value of the Risk Priority Number by multiplying the results of severity and occurrence so that the risk value is obtained. The next process of risk mapping based on the risk level uses a modification of the risk mapping table to obtain the error rate for making priority improvements. This research produced a complete document that contains the information needed to plan and prevent repetitive errors, and can reduce the initial system error rate by 4% to 2.4% according to reports from the Google Play Console system]]>
<![CDATA[SUSTAINABLE LIVELIHOODS THROUGH COMMUNITY EMPOWERMENT IN BUMIAJI, BATU CITY, EAST JAVA ]]>
<![CDATA[Handoko, Setiyo Yuli]]>;
<![CDATA[Puspita, Yeni]]>
<![CDATA[ IPTEK Journal of Proceedings Series No 6 (2019): The 1st International Conference on Global Development (ICODEV) ]]>
Publisher : <![CDATA[Institut Teknologi Sepuluh Nopember ]]>
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DOI: 10.12962/j23546026.y2019i6.6322
<![CDATA[The study objective is to analyze sustainable livelihoods (farmers conditions ; social, economic, and income) through community empowerment in the Sumber Brantas Village, Bumiaji, Batu City, East Java Province. The community empowerment program is a program to change plant commodities from garlic plants to potato plants. The research method is qualitative research. The key informants this study include the chairperson and members of Farmer Group "Anjasmoro Jaya Abadi 04". The results of the study include the first farmers to carry out the adaptation process. Second, farmers imitate the process, finally the farmers make the transition from garlic plants to potato crops. The change in livelihood from garlic farmers to potato farmers has an impact on economic life, their incomes have increased. Social life, in terms of the level of community education which is starting to change and high causes their social level to be better, cultural life, people who used to always know "mutual cooperation" on the land of fellow peers, help each other, but for now due to changes in income levels and they have been able to pay outside workers.]]>
<![CDATA[Analysis of Empty Containers Supplies in the Shipping Network: Case Study at National Shipping Company ]]>
<![CDATA[Heri Cahyono]]>;
<![CDATA[I Nyoman Pujawan]]>
<![CDATA[ IPTEK Journal of Proceedings Series No 5 (2019): The 1st International Conference on Business and Management of Technology (IConBMT) ]]>
Publisher : <![CDATA[Institut Teknologi Sepuluh Nopember ]]>
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DOI: 10.12962/j23546026.y2019i5.6390
<![CDATA[National Shipping Company (NSC) is a national shipping lines servicing domestic routes and a logistic key player of sea transport in Indonesia. Focus of this research is to determine total containers inventory for all routes, containers safety stocks at primary ports as well as optimum empty containers reposition strategy based on market’s requirement, all with purpose to avoid potential empty containers shortage. Unbalanced container turnover between inbound and outbound is a global issue in the shipping industry. A very common method applied by shipping operators in balancing supply and demand is repositioning excess containers to deficit areas. Determination of total container inventory begins with the calculation of safety stock of container inventory in Surabaya and Jakarta as a demand location port. Main parameter forming the calculation model is forecast cargo at home base port per route, service schedule as well as swiftness of cargo stuffing and stripping. Furthermore, determining the best routes combination shall reduce amount of container inventory. Calculation model of producing total container inventory which should be provided in 2018 is 46,382 TEUs while total existing NSC’s inventory in 2018 is 48,567 TEUs. From the total existing inventory, 2,516 TEUs turned out to be inactive (idle) for more than 30 days, meaning the active ones were 46,051 TEUs. From this comparison, calculation model is able to describe existing condition at 99.3%. Using the same model, a change in route combination with a pendulum nusantara service was carried out, which resulted in 968 TEUs reduction of container potential and reduction of one vessel allocation. This leads to potential efficiency of IDR 40,624,648,190 (forty billion six hundred twenty four million six hundred forty eight thousand one hundred and ninety Rupiah) for operational of year 2018]]>
<![CDATA[Sintesis Adsorben Komposit γ-Fe2O3/SiO2 Modifikasi Kuersetin untuk Mengurangi Limbah Tekstil Kongo Merah ]]>
<![CDATA[Iftyna D.]]>;
<![CDATA[Susanti R.]]>;
<![CDATA[Aprilianto E.]]>
<![CDATA[ IPTEK Journal of Proceedings Series No 4 (2019): Seminar Nasional Kimia (SENAKI) XV 2019 ]]>
Publisher : <![CDATA[Institut Teknologi Sepuluh Nopember ]]>
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DOI: 10.12962/j23546026.y2019i4.6116
<![CDATA[Penelitian ini bertujuan untuk mendapatkan komposit kur-γ-Fe2O3/SiO2 sebagai adsorben limbah warna kongo merah. Uji adsorpsi kongo merah oleh adsorben komposit kur-γ-Fe2O3/SiO2 dilakukan menggunakan metode Batch dimana filtrat hasil adsorpsi diukur konsentrasinya menggunakan spektrofotometer UV-Vis pada λ maksium 495 nm. Hasil XRD menunjukkan bahwa γ-Fe2O3 dan kur-γ-Fe2O3/SiO2 telah terbentuk. Spektra FTIR menunjukkan adanya gugus fungsi O-H, C=O, Si-O, dan Fe-O diyakini telah terbentuk komposit kur-γ-Fe2O3/SiO2. Difaktogram SEM-EDAX menunjukkan adanya komponen unsur Fe, C, Si dan O dimana persentase terbesar adalah unsur Fe 73.29%. Adsorpsi paling optimum pada konsentrasi 12 ppm dengan waktu kontak 20 menit,kapasitas adsorpsi sebesar 3,58 mg/g dan efisiensi adsorpsi sebesar 35.8%.]]>
<![CDATA[Understanding the Palm Oil Utilization Preference: A Literature Review and Preference Measurement ]]>
<![CDATA[Lucky Adhitiya]]>;
<![CDATA[Rifelly Dewi Astuti]]>
<![CDATA[ IPTEK Journal of Proceedings Series No 5 (2019): The 1st International Conference on Business and Management of Technology (IConBMT) ]]>
Publisher : <![CDATA[Institut Teknologi Sepuluh Nopember ]]>
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DOI: 10.12962/j23546026.y2019i5.6300
<![CDATA[Energy supply security has become the world’s issue this past decades. World’s energy demand keep growing yet supply remains stable. Numerous renewable energy sources are developed to fulfil this energy supply gap. This issue is also being a concern in Indonesia. Palm oil is considered as one of the renewable energy because of its production flexibility. Palm oil could be processed into cooking oil and fuel energy such as biodiesel. Objective of this present study is to understand the palm oil utilization preference either as the cooking oil or biodiesel. Literature review is conducted to explore variables that is being considered as preference variable. This present study conducted review in several literature that were published ranged from 2010 to 2018. Three variables were considered as a result of literature review. The first variable is sustainability aspect which represent life cycle of the processed product. The second variable is policy which could influence the industry’s stakeholder to conduct a utilization decision. The last variable is emission that is being produced by the processed product. This present study also conducted preference measurement in order to measure the preference of palm oil utilization either as he cooking oil or biodiesel. As the result, a research map is proposed for the future research direction]]>
<![CDATA[Application of Lean Production/Construction to Reduce Waste in Pipe Gas Construction (Case Study of Semare-Tie in KM 19 Pipa Porong Grati Gas Development Project PT Pertamina Gas) ]]>
<![CDATA[Widayat, Taufik]]>;
<![CDATA[Syairudin, Bambang]]>
<![CDATA[ IPTEK Journal of Proceedings Series No 5 (2019): The 1st International Conference on Business and Management of Technology (IConBMT) ]]>
Publisher : <![CDATA[Institut Teknologi Sepuluh Nopember ]]>
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DOI: 10.12962/j23546026.y2019i5.6353
<![CDATA[The lean approach, which was initially used in manufacturing industry, now is widely adopted by the construction industry called lean construction, in order to reduce waste and to optimize the value. This study was conducted to see the suitability of the lean construction approach on the EPC project of gas pipeline installation. This study is viewed from the Company side as the owner particularly in engineering aspect which is carried out by the company itself. Engineering work is deemed as a key to the next activity which is effective and efficient procurement and construction phase. Almost all similar projects show the same symptoms such as: low quality of engineering work (amendment value above 10%), target and realization lagging of its progress, re-work, weak coordination and residual materials. Therefore, the urgency to make improvements occur with the Lean Construction approach described in Big Picture Mapping, Value Stream Analysis Tool, Pareto Diagram, Fishbone Diagram at each stage of the engineering work EPC gas pipeline. Value Added (VA) activities were obtained at 39.35% and Non-Added Value (NVA) activities at 60.65%, engineering work quality classified as poor (amendment value 12.81%). The application of a lean construction approach is suitable to be applied in Company for gas pipe installation projects but with some notes. Then a comprehensive evaluation is required to evaluate man power, load, and skills needed and eventually to be standardized in an acknowledged company standard in order to make every project to be done punctually. The dominant root cause of the problem is the engineering contract form (a lump-sum engineering contract) and company policy as the reference to identify the contract form itself]]>
<![CDATA[The Barrier and Driver Factors of Building Information Modelling (BIM) Adoption in Indonesia: A Preliminary Survey ]]>
<![CDATA[Faizal Restu Utomo]]>;
<![CDATA[Mohammad Arif Rohman]]>
<![CDATA[ IPTEK Journal of Proceedings Series No 5 (2019): The 1st International Conference on Business and Management of Technology (IConBMT) ]]>
Publisher : <![CDATA[Institut Teknologi Sepuluh Nopember ]]>
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DOI: 10.12962/j23546026.y2019i5.6291
<![CDATA[Building information modeling (BIM) changes institutions, businesses, business models, education, workplaces and careers. For an asset owner the implementation of BIM should seen as a business change program that can potentially impact their ‘value proposition’. BIM can enable strategic business outcomes. BIM is useful for geometric modelling of a building's performance and it can assist in the management of construction projects. The construction industry in the world has recognized the benefits of BIM, therefore many large projects in developed countries have used BIM. In Indonesia, lately BIM has received more attention from construction industry players, even the Indonesian government through the public works agency issued guidelines for BIM adoption in 2018 with reference to developed country references such as Singapore. Many benefits can be obtained from the implementation of BIM, but the level of BIM adoption in Indonesia is still low. Thus, it warrants a study such as the present to determine what are the actual barriers that hamper its implementation and what are the driving factors that could enhance its pace of implementation in the Indonesian construction industry. This paper is an initial stage of the research to determine the barriers and driving factors of building information modelling (BIM) adoption in Indonesia. Following the variable identification from the literature, a preliminary survey involving eleven experts were conducted to verify several variables that have been identified from the literature to be used for the questionnaire survey. According to the experts’ opinion, it was found that 16 variables were considered relevant to measure the barriers of BIM adoption in Indonesia and 18 variables were considered relevant to measure the driving factors of BIM Adoption in Indonesia. The three most relevant barriers BIM adoption in Indonesia attributes were also determined according to the experts’ opinion, that are (1) Lack of BIM expert; (2) Lack of understanding about BIM and its benefits; (3) Resistance to change. The three most relevant drivers BIM adoption in Indonesia attributes were also determined according to the experts’ opinion, that are (1) Willingness/intention; (2) Technological factors; (3) Organizational culture]]>
