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691	Environmental Engineering	ABS-500
Removal of Copper Heavy Metal (Cu2+) by Biosorbent Microalgae Immobilized With the Optimazation of Contact Time and Temperature Nanda Astuti Lieswito (a), Astri Rinanti (a), Melati Ferianita Fachrul (a*) a) Department of Environmental Engineering, Faculty of Landscape Architecture and Environmental Technology, Universitas Trisakti, Jakarta, Indonesia * melati[at]trisakti.ac.id Abstract This research purpose to remove copper heavy metal (Cu2+) with a biotechnological approach using mixed microalgae Chlorella sorokiniana, Monoraphidium sp. and Scenedesmus obliquus which is bound in Na-Alginate polymer. The effect of contact time and temperature on the biosorption rate was examined to achieve the greatest efficiency in the Cu2+ metal removal process. Bonded biosorbents are made by drying in an oven, grinding, and trapping into polymer alginate to form immobilized microalgae or called beads. The decrease in Cu concentration was analyzed using Atomic Absorption Spectroscopy (AAS). The absorption properties of biosorbents were characterized using Fourrier Transform Infrared (FTIR) and Scaning Electron Microscopy (SEM). Optimization of absorption parameters was carried out in a batch system using a concentration of 20 mg/L Cu wastewater, biosorbent concentration 0.5 g/g, pH 4 with contact time setting (60, 120, 180) minutes and temperature regulation (25, 30, 35)oC. The results showed that maximum biosorption occurred at pH 4, temperature 30oC and contact time 120 minutes with removal efficiency 82%. This research prove that immobilized microalgae is very effective for reducing Cu2+ in wastewater, and immobilized microalgae could act as biosorbents which are effective in further optimization. Keywords: Biosorption, Copper (Cu2+), Immobilized Microalgae PermaLink | Plain Format | Corresponding Author (Melati Ferianita FACHRUL)

692	Industry Engineering	ABS-771
Analysis The Influence of Heterogeneity Reservoir on RM Field Ridha Husla (a*), Suryo Prakoso (a), M.Taufiq Fathaddin (a) a) Department of Petroleum Engineering, Trisakti University, Jl. Kyai Tapa No. 1, Jakarta 11440, Indonesia *ridhahusla94[at]gmail.com Abstract RM field is one of the fields located in Java Island. RM Field has great potential to be developed, In the RM field water injection has been done to increase the value of oil production. To find out the effect of heterogeneity on the RM field, dykstra parson was analyzed. The layers analyzed in the RM field were layers 22, 23 and 24. The results of the analysis for the Vdp value at layer 22 is 0.828, the Vdp value at layer 23 is 0.814, and the Vdp value in layer 24 is 0.812. With the dykstra parson analysis, it can be seen that RM field reservoirs tend to be heterogeneous, this is seen from the Vdp value which approaches the number 1, which is equal to 0.812 to 0.828 In addition, a mobility ratio analysis was carried out using rocktype 1 on the RM field and the M value on rocktype 1 was 0.3429. with a value of M <1 which means it can produce high sweeping efficiency and produce good oil recovery. Keywords: Heterogeneity, Dykstra Parsons, Mobility Ratio, Water Injection PermaLink | Plain Format | Corresponding Author (RIDHA HUSLA)

693	Industry Engineering	ABS-1036
Stabilitation of the quality and anthocyanin In strawberry puree during storaging I Gede Pasek Mangku (a*), I Nyoman Rudianta (a) a) Food Science and Technology Faculty of Agriculture Warmadewa Universtiy, Denpasar-Bali *Email: pasek_mangku[at]yahoo.com Abstract During processing and storaging of strawberry products like puree were often found some problems such as loss or change of red colour anthocyanin, formation of brown pigment and loss of ascorbic acid. The purpose of this research is to determined the best of precise dextrin concentration to stabilitation of red colour anthocyanin pigment and the quality during storage at temperature 10±2oC for 30 days. Rendomized block designed used with dextrin concentration as treatments that consists of three levels with four replications. The treatments are, dextrin concentration 0,8%, 1,6%, and 2,4%. The data were analyzed using of ANOVA and continoued by LSD analyzed if the treatment given significantly effect. To get the best treatment used of effectivity index value. The result showed that the treatment of dextrin 1,6% having the highest of total product value 2,27 and produced strawberry puree with the best quality during storage at temperature 10±2oC for 30 days. The characteristics of the strawberry puree are anthocyanin concentration 23,67 mg/kg, total ascorbic acid 78,12 mg/100g, total soluble solid 13,23%, moisture content 79,88%, pH 3,16, red colour intencity (a* value) +30,80, degree of lightness (L* value) 35,40, and total of microba 21,6 x 103 sel/g. Keywords: Strawberry puree, quality, anthocyanin, dextrin, storage PermaLink | Plain Format | Corresponding Author (I Gede Pasek Mangku)

694	Industry Engineering	ABS-787
APPLICATION OF ARTIFICIAL NEURAL NETWORK TO PREDICT PERMEABILITY VALUE OF THE RESERVOIR ROCK Ghanima Yasmaniar (a*), Suryo Prakoso (a), Ratnayu Sitaresmi (a) a) Petroleum Engineering, Universitas Trisakti Jalan Kyai Tapa No. 1, Jakarta Barat 11440, Indonesia *ghanimayasmaniar[at]gmail.com Abstract Permeability is an important reservoir property but is difficult to predict. Accurate measurement of permeability values can be obtained from core data analysis. However, this analysis is not possible to do at all interval wells in the field, so that permeability information becomes incomplete. Then, the use of artificial neural network methods can be an alternative to predict the incomplete permeability value. This study used 191 of sandstone core samples from Upper Cibulakan Formation in the North West Java Basin. These core data were used to determine hydraulic flow unit (HFU) from the reservoir, and to obtain a relationship between porosity and permeability for each HFU. The application of artificial neural network method is done by building a database of flow zone indicator (FZI) based on its relationship with log data. From this FZI value, the HFU class can be known. Afterward, the permeability value can be obtained according to the equation of the relationship between porosity and permeability at each HFU that had been generated. Based on this study, the result of permeability value is not much different from core data at the same depth, so that this method can be applied to obtain the permeability in uncored intervals. Keywords: Permeability; Artificial Neural Network; Hydraulic Flow Unit, Flow Zone Indicator PermaLink | Plain Format | Corresponding Author (Ghanima Yasmaniar)

695	Industry Engineering	ABS-280
Product Quality Control based on Lean Manufacturing and Root Cause Analysis Methods Wiwik Sulistiyowati1, Muhammad Rizal Adamy2, Ribangun Bamban Jakaria3 1,2,3 Industrial Engineering Department, Engineering Faculty Universitas Muhammadiyah Sidoarjo Abstract Product quality is one of the most important things in a product offered. Flat glass is one of the many products produced because of high consumer demand. This requires the company to run the production process well to produce products that meet consumer expectations. The purpose of this study was to determine the type and amount of waste in the glass-making production process and analyze the root causes of the glass-making process. The method used in this study is a mixed method, namely quantitative and qualitative approaches, which are directly measured using the Lean Manufacture concept approach. Lean manufacturing is a production activity that focuses on reducing waste in all aspects of the companys production activities. From the results of the study, it can be concluded that the cause of reject is influenced by two factors, namely humans and machines, human factors due to not running the standard operational procedure (SOP) properly, the factors of the machine due to not doing the appropriate machine settings at a particular station. Keywords: Lean Manufacturing, Product Quality, Root Cause Analysis. PermaLink | Plain Format | Corresponding Author (Wiwik Sulistiyowati)

696	Industry Engineering	ABS-1073
VOCATIONALIZATION OF SKILL EDUCATION BASED ON LOCAL WISDOM IN THE ERA OF THE ASEAN ECONOMIC COMMUNITY Ivan Hanafi (a*), Rina Febriana (b), Irzan Zakir (c), Daryanto (d), Taryudi (e) a) Electrical Education Study Program, Universitas Negeri Jakarta *) ivan.hanafi[at]unj.ac.id b) Technology and Vocational Education, Faculty of Engineering, Universitas Negeri Jakarta c) Electrical Education Study Program, Universitas Negeri Jakarta d) Electrical Education Study Program, Universitas Negeri Jakarta e) Electrical Education Study Program, Universitas Negeri Jakarta Abstract In the face of the Era of the Asean Economic Community (MEA) as a manifestation of the implementation of the agreement of the ASEAN Free Trade Area (AFTA), the Indonesian nation must have the right strategy especially in the field of basic education. Graduates of basic education must have adequate knowledge, attitudes and skills, including the ability to adapt to changes in work situations that continue to change dynamically. The study aims to develop a model of life skills education for students at the basic education level that is oriented to local wisdom. The skills implemented by the school are first mapped based on the suitability of local wisdom in a number of fields and the need for initial knowledge, attitudes and skills for students to prepare themselves to enter the workforce. The vocationalization model based on local wisdom at the basic education level is used to find solutions in an effort to complement and prepare basic education graduates who do not continue their education to become productive and competitive workforce to face global competition, especially in facing the ASEAN Economic Community. Initial research results in the form of interview instruments and guidelines reviewed by experts consist of 1) local potential, 2) selection of basic types of skills in schools, 3) availability of equipment and materials for skills practice, 4) resources in schools, 5) support the parties in the application of skills learning, and 6) the process of learning skills. Keywords: vocationalization, local wisdom, life skills, education skills. PermaLink | Plain Format | Corresponding Author (Rina Febriana Hendrawan)

697	Industry Engineering	ABS-565
Employability skills: industry perspective and achievement of student employability skills Rina Febriana Hendrawan (a*), Daryanto (b) a) Technology and Vocational Education, Faculty of Engineering, Universitas Negeri Jakarta, Jakarta, Indonesia *rinafebrianaunj[at]gmail.com b) Electrical Engineering Education Study Program, Faculty of Engineering, Universitas Negeri Jakarta, Jakarta, Indonesia Abstract This study was conducted to explore the importance of graduate work skills through an industry perspective. Respondents consisted of 23 industry in various fields in Jakarta. The instruments used in this study were adapted from the SCANS model and integrated the Indonesian National Qualifications Framework (KKNI). The results of the survey show that the industry has a high interest in employability skills and achievement of employability skills indicators for students in Jakarta. This study also indicates that there is no significant difference between company size and employability skills. However, there are substantial differences between indicators in employability skills. Keywords: Industry, employability skills, managerial skills, attitude PermaLink | Plain Format | Corresponding Author (Rina Febriana Hendrawan)

698	Industry Engineering	ABS-1082
The Influence Of Industry Criteria 4.0 In Increasing The Competitiveness Of Brands Bottled Water In Indonesia Ribangun Bamban Jakaria; wiwik sulistiyowatiParamitha ;Amelia Kusumawardani Universitas Muhammadiyah Sidoarjo Abstract The digital era provides easy access for users of smart phones in conducting transactions, this will provide challenges for pioneering business actors in conventional ways. This study aims to study the current system that can improve the competitiveness and growth of the Indonesian Bottled Drinking Water industry in the industrial era 4.0, namely by making product design changes aimed at increasing brand value. The method used is a quantitative method by deciphering product variables, increasing brand value, and several industry criteria 4.0. The expected results are industry 4.0 criteria that are able to answer the challenges of current transactions with a significant contribution to improving design to increase sales of bottled water products Keywords: Product description, brand value, digital PermaLink | Plain Format | Corresponding Author (Ribangun Bamban Jakaria)

699	Industry Engineering	ABS-828
UTILIZATION OF EGGFRUIT ON BREAD AS FOOD DIVERSIFICATION PRODUCTS Y. Sugiarti1 D. N. Azizah1, dan D. L. Rahayu Program Studi Pendidikan Teknologi Agroindustri, Fakultas Pendidikan Teknologi Agroindustri, Universitas Pendidikan Indonesia Abstract One of Indonesian tropical plant collection diversity is eggfruit (Poeteriacampechiana) that known as sawo mentega in Indonesia. Eggfruit has high nutritional value and good function for health but their consumption still low and the fruit is unfamiliar for the most of Indonesian citizen. This research to develop food diversity by toast bread making to increase the utilization of eggfruit and promote the fruit to boarder citizen. This research aims to produce eggfruit toast bread products as a food diversification and find out the panelists acceptance of the eggfruit toast bread produced. Eggfruit toast bread compotition formulation will be the first step in this research. The best eggfruit toast bread formulation will be resulted based on the best phisical test, chemical test, and organoleptical test. The toast bread produced in this research is based on a formulation from the modified Bogasari Baking Center (2004). Eggfruit toast bread can be made from eggfruit puree and flour with different formulations. Formulation of wheat flour and eggfruit puree that can be made at 90 : 10; 80 : 20; 70 : 30; and 60 : 40, while for wheat flour and eggfruit flour formulations of 95 : 5; 90 : 10; 85 : 15; and 80 : 20. In general, panelists acceptance of eggfruit toast bread produced has the criteria of dislike-like for overall appearance, crust color, crumb color, uniformity of pores, tenderness, weakness, and aroma, while for taste is ordinary-like. The eggfruit toast bread produced has the characteristics of yellow, uniform pores, soft texture, aroma of bread, and a little of eggfruit taste. Keywords: food diversification, puree, toast bread, eggfruit, flour PermaLink | Plain Format | Corresponding Author (Yatti Sugiarti)

700	Industry Engineering	ABS-319
THE COMPETITIVE ADVANTAGE OF SMALL INDUSTRY OF BATIK WITH THE HUMAN CAPITAL AND ORGANIZATIONAL CULTURE Aam Amaningsih Jumhur Universitas Negeri Jakarta Abstract The increasing number of production values due to an increase of batik exports to various countries as well as the national exports of batik would certainly help in generating foreign exchange. Batik industry is a culture and tradition based industry in which its raw materials is available in the country. In addition, it also has cultural value and helped absorb quite a lot of labor with owned some special skills. The aim of this study was to determine how the organizational culture variables intervened in the relationship between the human capital variable with competitive advantage variable, so that batik small industry entrepreneur would be able to formulate and choose the right strategy to win the competition by managing its human capital well. This study used primary data in the form of questionnaires distributed to 200 respondents. The data obtained from the questionnaire were analyzed using Classic Assumption Test, Multiple Linear Regression and hypothesis testing (f-test and t-test) with significance level of α= 5% by using SPSS version 21. The results of the study showed that based on the results of regression testing on human capital variable with the competitive advantage variable and the presence of organizational culture as intervening variable, it could be concluded that there was a significant relationship between the human capital and intervening variables (organizational culture) as well as with competitive advantage variable. This result showed that organizational culture variable was an intervening variable between human capital and competitive advantage variable in small industry batik Trusmi, Indonesia. Keywords: Competitive Advantage, Human Capital, Organizational Culture, Small Industry Batik PermaLink | Plain Format | Corresponding Author (Aam Amaningsih Jumhur)

701	Industry Engineering	ABS-845
Thermal Characteristic of the X Geothermal System - Indonesia, And A Recommendation on Utilization Possibility Kris Pudyastuti1), Syarif Fadhlurrahman M1), Maman Djumantara1) Harmen 2) 1)Universitas Trisakti , Jakarta- Indonesia 2) Lampung University, a student of the ITB doctoral program Abstract This study on thermal characteristics was conducted at a geothermal resources- in the X field in Indonesia, located at altitudes ranging from 980masl to 1800masl,where 26 wells have been drilled in the prospective area of 65 km2, where development is planned for 2 x 55 MW electric power. The research included determining the temperature of the formation at each well using well heating-up temperature profiles data, also to determine the thermodynamics condition or characteristic of the geothermal system. The research included a literature review on heat energy conversion to electricity. Based on a comprehensive literature review, the problems found in the present-literature will be analyzed, and the result will be used to recommend the possibility technology of conversion that can extract the heat energy optimally in the X geothermal-field. Keywords: heating up temperature profile, thermodynamics, upflow zone, outflow zone, conversion technology PermaLink | Plain Format | Corresponding Author (RINI SETIATI)

702	Industry Engineering	ABS-591
Multimedia Development of Carved Slippers to Improve Student Skills in Craft and Entrepreneurship Subjects Rina Febriana Hendrawan (a*), Nazmaini Musfiriyah (b), Dewi Suliyanthini (c) a) Technology and Vocational Education, Faculty of Engineering, Universitas Negeri Jakarta, Jakarta, Indonesia *rinafebrianaunj[at]gmail.com b) Technology and Vocational Education, Faculty of Engineering, Universitas Negeri Jakarta, Jakarta, Indonesia c) Faculty of Engineering, Universitas Negeri Jakarta, Jakarta, Indonesia Abstract This study aims to develop learning media for craft and entrepreneurship subjects. After undergoing preliminary research on students needs for this particular subject, the authors consider technology-based learning media to needed in the process of learning carved sandals. This research was developed based on Borg and Galls research model as the main design, and ASSUREs instructional design as a sub-design in developing instructional media in the form of DVD (Digital Versatile Disc) entitled Tutorial Carved Sandals. Based on the results of the expert validation test it was concluded that the product was feasible to be used as a medium with a yield of 3.55 or 88.75%, and was very well used as a learning medium in large group trials with a return of 3.43 or 86%. This DVD has tested in 3 secondary schools in Central Jakarta in learning Crafts and Entrepreneurship in making handicraft products with the inspiration of non-objects culture. Keywords: multimedia DVD, hand-carved sandal, ASSURE PermaLink | Plain Format | Corresponding Author (Rina Febriana Hendrawan)

703	Industry Engineering	ABS-857
Comparison of methods for calculating oil and gas reserves in providing certainty of reserves in the oil and gas industry Sigit Rahmawan, Onnie Ridaliani, Samsol Petroleum Engineering Department, Universitas Trisakti Abstract The volumetric method is the initial method used in calculating hydrocabon reserves obtained from exploration stage obtained geological data from a field in the oil and gas industry. The hydrocabon reserve calculation obtained from volumetric method is the result of interpretation data, such as seismic and logging data that have a small range of trust, in this study estimated hydrocarbon reserves in the XY formation gas reservoir using material balance method and P/Z method in assessing optimism or pessimism of the reserve value generated from volumetric method. material balance method and P/Z method were chosen as a reliable method because it has better accuracy data such as pressure measurement data, reservoir rock and fluid analysis data, and cumulative production measurement data compared to interpretation data on volumetric method. From this research, it can be concluded that the reserve value produced by the volumetric method is more pessimistic than the reserve value using material balance method and P/Z method. By knowing pessimism of the results of the volumetric backup method for the other two methods, it will affect the amount of oil and gas industry reserves so that geological modeling needs to be done again after more accurate data is obtained Keywords: reserve, P/Z Methode, Material Balance PermaLink | Plain Format | Corresponding Author (samsol samsol)

704	Industry Engineering	ABS-859
GROUPING POROSITY PERMEABILITY IN DEEP MARINE SEDIMENT BREBES CENTRAL JAVA TO ANALOG OIL AND GAS RESERVOIR Firman Herdiansyah, M.Burhannudinnur, Dewi Syavitri, Ovinda Universitas Trisakti Jl.kyai Tapa 1 no.1 Tomang Jakarta Barat Jakarta Abstract Studi area is located in Rambatan river and Ciseureh river Malahayu Brebes Central Java. Porosity and permeability are very important to oil and gas industry because the meaning of porosity is a measure of the void spaces in a rock and is a part of the total volume rock. Permeability is defined as the ability of a rock to transmit fluids. Deep-water gravity flow or deep marine reservoir are important exploration targets worldwide and there is complicated when little subsurface data available. Porosity and pemeability analysis from outcrops data may considered as the data used in this study. The result from three measuring section show there is thin intercalated carbonaceous sandstone, marl, and shale. 20 outcrop samples was carried out the helium porosimetry for porosity permeability value, 17 samples was examined thin section analysis for fabric discussion, and 2 samples was calcimetry analysis. Litology are generally contains many foraminifera from very fine to fine grained and mostly moderate grained on inner-outer fan environment. Sedimentary structure represent slope sedimentary structure such as graded bedding, lower lamination, slump bedding, ripple, convolute ripple, cross lamination, and trace fossil as feature of deep-marine deposits. Smaller porosity value in the limestone abundant foraminifera 2% and horizontal permealibity 0.005 mD. Then the higher porosity value is 27.9% with the higher permeability 76 mD in sandstone. Keywords: Porosity & permeability, sedimen, oil and gas industry PermaLink | Plain Format | Corresponding Author (Firman Herdiansyah)

705	Industry Engineering	ABS-97
Product Marketing Strategy in Micro and Medium Enterprises by Utilizing E-Commerce Rina Kurniawati (a*), Leni Fitriani (b) a) Department of Industry Engineering, Sekolah Tinggi Teknologi Garut, Jl. Mayor Syamsu No. 1 Garut 44151, Indonesia *rinakurniawati[at]sttgarut.ac.id b) Department of Informatics, Sekolah Tinggi Teknologi Garut, Jl. Mayor Syamsu No. 1 Garut 44151, Indonesia Abstract The development of business world cannot be separated from the important role held by smart and innovative thinkers. The innovation and creativity of these thinkers bring in products that have high selling value. Dinas Koperasi and SMEs of Garut presents Parigel as a Business Empowerment and Development service for Micro Business doers. Parigel facilitates the promotion and marketing of Micro Business doers products which is intended to bring Garut Government services closer to the community. The purpose of this study is to find out and analyze the business marketing strategy that is carried out by utilizing E-Commerce. This research used qualitative and descriptive method with a case study approach. The result of this study indicate that selling and marketing products through cyberspace has many advantages, namely; it has broad coverage, it is not constricted by space and time, and it can be done anytime and anywhere. Therefore, E-commerce is worth trying in order to help developing Micro and Medium Enterprises in Garut. Keywords: Marketing; Strategy; Micro; Medium Enterprises; E-Commerce PermaLink | Plain Format | Corresponding Author (rina kurniawati)

706	Industry Engineering	ABS-361
Optimization Analysis Of Route Determination And Trash Distribution Policy In Garut City Dedi Sadudin Taptajani Department of Industrial Engineering Sekolah Tinggi Teknologi Garut Abstract Distribution is an important aspect of the delivery process. So it is an activity that is useful to launch goods distribution activities from upstream to downstream. According to Philip Kotler (1997) Distribution is a group of organizations that create a process of distribution activities of a good or service, the distribution of trash from the Temporary Disposal Site (TPS) to the end in the optimal Final Disposal (TPA) is a step to Accelerate the arrival of trash to the final dump. presents an extension of the ant colony technique to solve the optimization case of the shortest route by taking into account the distance, capacity and grouping of the optimal depot using the ant algorithm model as the first step of optimization, The ant colony algorithm is adopted from the behavior of ant colonies known as the ant system (Dorigo, 1996 ). Naturally, ant colonies are able to find the shortest route on the way from the nest to the food sources Ant colonies can find the shortest route between the nest and the source, of food based on footprints on the trajectory that has been passed. This paper presents an extension of existing ant colony techniques to solve some of the trash removal problems from some Temporary Disposal Sites (TPS) to end up in the Final Disposal (TPA). so that in the process of taking garbage to each TPS, each vehicle brings waste with optimal capacity, without any empty vehicle, when the vehicle reaches the Final Disposal (TPA) with the shortest route consideration. Based on the results of simulation and evaluation studies using a model approach, it has been shown that the ant colony optimization technique proposed in this paper leads to more optimal results than the method. Keywords: Distribution, optimization, ant colony algorithm, simulation, evaluation PermaLink | Plain Format | Corresponding Author (Dedi sadudin Taptajani)

707	Industry Engineering	ABS-877
Construction Design System of Constant Pressure Control in Water Distribution System with PID Method using PLC Based on IoT Syufrijal (1), Muhammad Rif’an (2), Ermi Media’s (3) Electronics Technology Diploma, State University of Jakarta, Jalan Rawamangun Muka, Jakarta 13220, Indonesia syufrijal[at]unj.ac.id Abstract The objective of this research is to make a constant pressure control in water supply with the method of PID using PLC Siemens S7-1200 as controller and also to monitor the process of its work system from a distance through internet of things (IoT). Water distribution system is created utilizing 3 phase pump which will supply water from the tank. Pressure sensor will be used as analog input signal of PLC to detect the pressure of water in the pipe. Using inverter, water pressure will be kept constantly matched with the desirable set point through the setting of pump speed using digital PID method that is available on PLC. Score of set point is done through HMI of touch panel KTP700basic. By using wifi communication that has been connected to internet, PLC data can be sent to cloud server through raspberry pi3 using MQTT protocol. Raspberry pi3 program is design using the java script coding language. Research result showing that this system is able to keep the water pressure in a constant level of 1.2 bar in water supply. It is also able to monitor the water pressure through HMI and handphone via IoT Technology in the GoIoT server. Keywords: Pressure Sensor, PLC, PID, HMI, Inverter, IoT (Internet of Things), Raspberry PermaLink | Plain Format | Corresponding Author (syufrijal syufrijal)

708	Industry Engineering	ABS-115
The Impact of Brand Awareness and Perceived Quality on Smartphone Customer Loyalty Hilmi Aulawi (a*), Novie Susanti Suseno (b) a) Department of Industrial Engineering, Sekolah Tinggi Teknologi Garut, Jl. Mayor Syamsu No. 1, Garut, Indonesia *hilmi_aulawi[at]sttgarut.ac.id b) Department of Accounting, Universitas Garut, Jl. Raya Samarang 52A, Garut, Indonesia Abstract Efforts to create customer loyalty are one of the critical factors for maintaining the sustainability of a company. The purpose of this study is to identify the effect of brand awareness and perceived quality on smartphone customer loyalty. This study uses a mixed method of sequential explanatory. The stages of analysis begin with a quantitative approach then verified through a qualitative approach. The technique of collecting data uses questionnaire surveys and interviews. Participants in this study were smartphone users in Garut district with a total of 200 people. The results showed that brand awareness and perceived quality did not have a significant positive effect on customer loyalty. The high level of competition in smartphone products encourages companies in the sector to carry out intensive promotion activities. This condition resulted in consumers getting a lot of information about the uniqueness and superiority of the various smartphone products offered, thus increasing their desire to try the performance of these products. The results of the study found that the ability of companies to innovate is the critical factors for maintaining customer loyalty in conditions of very tight competition. Keywords: brand awareness; perceived quality; customer loyalty; mix methods; innovation PermaLink | Plain Format | Corresponding Author (Hilmi Aulawi)

709	Industry Engineering	ABS-371
Inefficient Analysis Inventory Management: Case Study in a SME Company Sri Susilawati Islam (a*), Andrey Hasiholan Pulungan (b), Abdul Rochim (c) a) Industrial Engineering Program Study, Sampoerna University, Jl. Raya Pasar Minggu No.Kav. 16, Jakarta 12780, Indonesia *sri.islam[at]sampoernauniversity.ac.id b) Accounting Program Study, Sampoerna University, Jl. Raya Pasar Minggu No.Kav. 16, Jakarta 12780, Indonesia c) Industrial Engineering Program Study, Borobudur University, Jl. Raya Kalimalang No.1, Jakarta 031018, Indonesia Abstract The research aims to examine factors that may cause inventory mismanagement in a Small Medium Enterprises (SME), which is a market leader in the Heavy Equipment after sales business, is selected. The company is selected because despite its status as market leader, the company deals with various inventory problems, for examples slow moving stocks, delivery delays to customers, etc. Those problems, at the end, may reduce companys profit. In order to determine the main causes, this study applies quantitative and qualitative methods. Quantitative method, specifically Pareto diagram and Inventory Turnover Ratio (ITR) is mainly used to evaluate sales and inventory management. ITR is affected by spare part quantity, warehouse area used, and the material amount. The top five ITR ratings are examined further through observation, interview, and questionnaire techniques. Meanwhile, the qualitative method is applied to evaluate the companys inventory information systems, procedures and coordinations among departments, and human resources. Our findings suggest that the unintegrated companys information system and lack of qualified human resources are the main factors affect inefficient inventory management. The research benefits to industry by suggesting the importance of information systems and human resources to inventory management. As for academics, this research enriches inventory management literature. Keywords: Inventory Management, Small Medium Enterprise, Inventory Turnover Ratio PermaLink | Plain Format | Corresponding Author (sri susilawati islam)

710	Industry Engineering	ABS-116
Application of AHP and SAW in the Selection of Electric Generators in Manufacturing Companies Hilmi Aulawi (*) Department of Industrial Engineering, Sekolah Tinggi Teknologi Garut, Jl. Mayor Syamsu No. 1, Garut, Indonesia *hilmi_aulawi[at]sttgarut.ac.id Abstract This study aims to implement a decision-making approach in selecting electric generators in manufacturing companies. The first step is to compile a set of criteria that is matched with the companys preferences. The next step is to apply the Analytic Hierarchy Process (AHP) to determine the weight of the criteria using pairwise comparations. Furthermore, simple additive weighting (SAW) is used to select the best alternative using quantitative data. The study was conducted at a manufacturing company engaged in textile in Indonesia. The results showed that there were six criteria used to select electric generators, namely product prices, capacity, reliability, maintenance costs, ease of service and service life. The application of this approach has been able to help decision makers in the group decision-making process effectively and efficiently. Besides that, the results of this study have been able to utilize qualitative and quantitative data to produce the best solution in the selection of alternatives. Keywords: multi-criteria decision-making (MCDM); AHP; SAW PermaLink | Plain Format | Corresponding Author (Hilmi Aulawi)

711	Industry Engineering	ABS-629
FORECASTING GAS WELL PRODUCTION PERFORMANCE WITH WELL TEST ANALYSIS FOR OIL AND GAS INDUSTRY Samsol, Sigit Rahmawan, Onnie Ridaliani, Rizky Kusumahwardani Gunawan Petroleum Engineering Department Universitas Trisakti Abstract Well test pressure and deliverability analysis are carried out to determine permeability (k), skin formation damage factor, initial pressure (Pi), (∆P skin), investigation radius (ri), boundary of the reservoir. The results of this work are used to calculate the initial gas reserves by wells and predict production capacity in the wells studied (AOFP). Furthermore, an optimal production plan will be produced to produce the most economic value. The result of this work is the initial pressure value (Pi) which is equal to 862 psi. The skin values ​​of the pressure derivative and Horner Plot methods are -0.214 and -0.232 respectively, the permeability value are 148 and 135 mD, the value of the investigation radius is 2110 ft. The resulting AOFP is 8214 Mscf/D. The calculation of the initial gas reserves by well uses the volumetric method which is equal to 458 MMscf. These results are then carried out forecasting production performance aims to determine the most optimal production planning. This production plan, the scenario used is scenario 1 with a gas rate of 2 MMscf and scenario 2 uses a compression 50 psia with a gas injection rate of 1 MMScf. Furthermore, the best scenario of this research is the optimum production by using 50 psia injection rate of 1 MMScf Keywords: Well test, Pressure build up test, Gas well production scenario PermaLink | Plain Format | Corresponding Author (samsol samsol)

712	Industry Engineering	ABS-385
Determination of the Optimal Distribution Center Location with Gravity Location Model Agus Sanjaya(*), Anita Christine Sembiring, Willyanto Department of Industrial Engineering, Universitas Prima Indonesia, Jl. Sekip Simp. Sikambing, Medan, Indonesia Abstract Strategic distribution locations and optimal distribution routes are important concerns of a company to minimize distribution costs. The shorter the distribution route, the lower the cost of distribution. Animal feed companies have difficulty in reducing distribution costs. Therefore, research is conducted to determine the exact location of the distribution center so that the distribution route is optimal. The purpose of this research is to determine the optimal distribution center location to reduce distribution costs. In determining the proposed distribution center location, Gravity Location Model is used. The research results are the new coordinates as the proposed distribution center location, namely (98.888504; 3.419406) and the total distribution cost of initial distribution center location is Rp 7.135.828, while the total distribution cost of proposed distribution center location is Rp.6.965.143. The results obtained show that the total distribution costs can be reduced by 2.39% per day. Keywords: Route optimization, Saving matrix, VRP, Gravity location model PermaLink | Plain Format | Corresponding Author (Agus Sanjaya)

713	Industry Engineering	ABS-387
Controlling Sugar Raw Material Supplies in the Bottled Beverage Industry Willyanto S(*), Anita Christine Sembiring, Agus Sanjaya Department of Industrial Engineering, Universitas Prima Indonesia, Jl. Sekip Simp. Sikambing, Medan, Indonesia Abstract The right inventory of raw materials will minimize optimal inventory costs. A company that produces bottled beverages in Medan has problems in procuring raw materials, especially sugar, which results in high inventory costs. Therefore, this study will calculate the order of requests using the Economic Order Quantity (EOQ), Period Quantity Order (POQ). ) and MIN MAX. The EOQ method was chosen because it saves storage costs and ordering costs. The data analysis technique in EOQ method is calculating the optimal amount of raw material purchases, the optimal ordering frequency, the message costs, optimal cost savings and total cost of raw material inventory. EOQ method turned out to have a lower total inventory cost compared to the cost of procurement of raw material supplies set by the company, which is Rp. 215,862,536 while the EOQ method is Rp. 210,777,546. From the calculation results, the EOQ method is more efficient, because the company will be able to minimize the total inventory cost of Rp. 5,084,990 or 2,4% lower. Keywords: Raw material inventory, EOQ, POQ, MIN MAX PermaLink | Plain Format | Corresponding Author (Willyanto S)

714	Industry Engineering	ABS-901
High Production Improvement using Channel Fracturing in a Tight Conglomeratic Sandstone Reservoir Ratnayu Sitaresmi, Hari Karyadi Oetomo, Fauzan Agung Kartiyasa Universitas Trisakti Abstract A novel method of hydraulic fracturing is by pulse pumping proppant into formation. The proppant is mixed with fibrous material, and this material will hold the formation from closing, even though channel if formed in the formation. A well producing from poorly sorting conglomeratic reservoir with secondary porosity and muddy micro-porosity. The well recently only produces intermittently 9 to 20 BOPD on sucker rod pump. Well permeability is 1.78 mD with reservoir pressure of 1188 Psi. The first step is to further evaluate the well, from rock mechanic and stress of formation, which is called Candidate Selective Factor (CSF). And then, a fracturing operation is designed, based on well parameter and surrounding wells. After performing pre-fracturing; consists of berakdown test, step rate test, and minifrac test; the operation is re-designed. The re-design includes special pulsing pumping technique, and the mainfrac operation. In the actual operation, the proppant was pulsing into formation for eleven times. The results of after channel fracturing shows that the productivity index increases 10.3 times. This new hydraulic fracturing method; Channel Fracturing; will also give less possibility of screen out, in addition to its successful result. Keywords: Hydraulic Fracturing, Channel Fracturing, Candidate Selective Factor PermaLink | Plain Format | Corresponding Author (Ratnayu Sitaresmi)

715	Industry Engineering	ABS-903
Flow Description of Gas Well in Basement Granite Reservoir from Well Test Analysis Hari K. Oetomo, Ratnayu Sitaresmi, Dimas Panji Laksana Universitas Trisakti Abstract A sweet gas exploration well, penetrating 3286 feet thickness of Granite Basement with 70 feet thickness of extensive fracture was tested. Initial step was to study all geologycal and petrophysical aspects of reservoir and well . These data were used to obtain the sense of reservoir shape model and its fracture flow behavior. Interpreting the log gives the presents of partial fracture and open fracture, which are shown in the early time region as a fracture dominated flow and very small wellbore storage effect. The bilinear flow before middle time region and followed by two porosity fracture model at middle time region are shown afterward. Constant pressure circle boundary is shown in the late time period. In summarized, the well flow model is in infinite acting conductivity with two porosity pseudo steady state reservoir model and constant pressure circle boundary. The permeability is 1.45 mD, with -0.52 skin and 1962 Psia reservoir pressure; meanwhile the fracture coefficient is 50 mD-ft, storativity is 0.51, and interporosity flow coefficient is 4.38x10-6 mD-ft. All well and reservoir data pertaining well test is very important for getting a reliable well test interpretation result; to get better understanding reservoir flow behavior. Keywords: Pressure Build Up Test, Pressure Derivative, Granite Basement, Sweet Gas Well, PermaLink | Plain Format | Corresponding Author (Hari Karyadi Oetomo)

716	Industry Engineering	ABS-663
Implications On The Total Business Approach To The Press Red Brick Supply Chain a) Dedi Sadudin Taptajani, b) Ridwan Setiawan, a) Andri Ikhwana a) Department of Industial Engineering b) Department of Informatics Engineering Sekolah Tinggi Teknologi Garut Abstract There are many strategies that can be carried out by the company that will have implications / implications, which in general, namely the principal actors or network members in the chain of supply chains of red bricks that consist of five organizations or parties namely suppliers, manufacturers, distributors, retailers, and consumers. The five principal actors must be as a totality. Next The nature of competition between supply chain networks is then the phasing implications of the supply chain process where the evolutionary process requires phasing, so it needs to be detailed, differentiated, and planned about what, who, and how for each element such as drivers, focus, benefits, tools, areas of action, guidelines, models, alliances, and training, The key to supply chain management is network integration or management among all related companies, the company is still owned by the owner, and there are no acquisitions so that the strategies developed are total and collective, not the strategy of individual companies. All relevant parties need to be included in order to produce a plan believed and implemented together, which will then be carried out by several targets which are specific performance benchmarks, as well as improving customer relations. the SCOR model (Supply Chain Operations Reference) is used to issue performance measurement standards in the supply chain so that it can be used for comparison with other industries. In this research, it is expected to get a solution to declare the impact of the red brick supply chain seen in terms of total effort in improving and or creating competitive advantage (new) so that competition no longer occurs between companies, but between one supply chain and another supply chain , or between one company network and another company network. Keywords: Supply Chain, Strategic, Management, Supplier PermaLink | Plain Format | Corresponding Author (Dedi sadudin Taptajani)

717	Industry Engineering	ABS-678
Education on Making Beauty Soap Through Saponification Technique on Entrepreneurial Interest in Housewives Sitti Nursetiawati(a*) Dwi Atmanto (b) a, b) State the University of Jakarta, Faculty of Engineering, Cosmetology Education, East Jakarta, Rawamangun 13220 *sitti-nursetiawati[at]unj.ac.id Abstract Saponification is the chemical reaction process of fatty acids with KOH, KK2CO3, NaOH, and Na2Co3 so as to produce soap with carbonyl salt content. One of the benefits of saponification is creating a product that can produce economic value. This research was conducted using a quantitative method involving 50 respondents from housewives who received material to training related to making body soap. The research location was chosen purposively. The results of the study stated that (a) saponification soap made can be used for the body, but it is not suitable for use as a facial soap. Because, the pH content of the face and the saponification of soap need to be adjusted, including the ingredients suitable for facial skin, (b) further research is needed regarding natural preservatives and skin safe, so that the saponification soap is durable, (c) soap making with saponification techniques that are quite easy to apply, (d) there is a relationship between soap-making education and the high interest in housewife entrepreneurship, and (e) what is needed to increase the entrepreneurial interests of housewives is the practice of packaging products to the distribution chain. Keywords: Saponification techniques, body soap, education, entrepreneurship Keywords: Saponification techniques, body soap, education, entrepreneurship PermaLink | Plain Format | Corresponding Author (Sitti Nursetiawati)

718	Industry Engineering	ABS-429
Implementation Copula to Multivariate Control Chart Tika Endah Lestari*, Shafira Khoirun Nisa, Fiella Pramysilia Citra, Gemintang Segara Asri Industrial Engineering, Faculty of Engineering and Technology, Sampoerna University *tika.lestari[at]sampoernauniversity.ac.id Abstract Multivariate Control Charts is an effective tool in Statistical Process Control to identify either an out-of-control process or in-control process. Hotelling T2 control chart is a quite popular and widely used technique in this field. However, its performance is deteriorated when the underlying distribution of the quality characteristics is not following the multivariate normal distribution. Multivariate control chart usually recommended a procedure in the phase-in Hotelling T2 control chart although there is difficulty in interpreting the signals from multivariate control charts more work is needed on data reduction methods and graphics techniques. Basically, the multivariate control chart refers to the theory of prediction interval. Therefore, its called predictive multivariate control charts. We aim to construct what so-called predictive multivariate control chart both classical in this part in the phase-in Hotelling T2 and Copula-based ones. We argue that appropriate joint distribution function may be well estimated by employing Copula. A numerical analysis is carried out to illustrate that an Application Copula-based Multivariate control chart outperforms than bivariate control chart and others. Keywords: Multivariate Control Chart, Copula, Predictive Control Chart PermaLink | Plain Format | Corresponding Author (Tika Endah Lestari)

719	Industry Engineering	ABS-178
Production capacity and raw material storage capacity in agriculture-based industries Yusuf Mauluddin Departement of Industrial Engineering Sekolah Tinggi Teknologi Garut Abstract The purpose of this study is to find production capacity and storage capacity of raw material warehouses in agriculture-based industries. It is a concern; the supply of raw materials can only be done during the harvest period while production must continue throughout the year. This case occurs in the coffee processing industry, where the supply of raw materials for the harvest period is from April to August while production must be carried out every day throughout the year. To model, the problem is used by simulation using deterministic variables. Various capacity scenarios are tested to see system performance. The results obtained show maximum production capacity is to follow working hours with a minimum raw material storage capacity  Keywords: production capacity, storage capacity PermaLink | Plain Format | Corresponding Author (Yusuf Mauluddin)

720	Industry Engineering	ABS-179
Design of Production Control Board to make to order home industry Yusuf Mauluddin Departement of Industrial Engineering Sekolah Tinggi Teknologi Garut Abstract This study discusses the design of a production control board in the home industry. The home industry that implements a response strategy to consumers is make to order, and a production system strategy is a flow shop. The design of the production control board is intended as a tool to see when an order starts and finishes, the position of the order, when to accept orders, and the production capacity owned. Home industry that is the object of research is bag home industry. The research methodology is a case study and the model used is a modification of the Gantt chart. The design results show the production control board is able to work as a tool in planning and controlling production activities. Keywords: Production control board, home industry PermaLink | Plain Format | Corresponding Author (Yusuf Mauluddin)

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