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61	Information Processing and Engineering	ABS-47
Low-Cost High-Performance MEMS Inertia Measurement Unit for Seismic Activity Monitoring Bima R. P. D. Palevi (1), Djoko H. Praswanto* (2), Ratri Andinisari (3), Citra D. Megawati (4), Rachmadi Setiawan (1) (1) Department of Electrical Engineering, National Institute of Technology, Malang 65152, Indonesia (2) Department of Mechanical Engineering, National Institute of Technology, Malang 65152, Indonesia (3) Department of Civil Engineering, National Institute of Technology, Malang 65152, Indonesia (4) Department of Creative and Digital Industries, Faculty of Vocational Studies, University of Brawijaya, Malang 65145, Indonesia *) corresponding author: djoko[at]lecturer.itn.ac.id Abstract In a developing country rich of seismicity as in Indonesia, the need for seismometers and integrated monitoring system keeps on increasing. The existing seismic stations are very few and poorly distributed, especially the ones installed around volcanoes. To better the overall monitoring system, the number of seismic station has to be increased despite the fact that commercial seismometer is currently unaffordable. Therefore, this study aims to develop a low-cost sensor to monitor seismic activities of active volcanoes by using tri-axial Inertial Measurement Unit (IMU). The type of IMU utilized in this study is MPU-9250 with embedded MPU-6050 architecture. Equipped with both tri-axial accelerometer and gyroscope, MPU-9250 is working based on Micro Electro Mechanical System (MEMS). This sensor has the capability to detect a change in acceleration up to 16 g-force on all three of its accelerometer axis. The calibration of this sensor was performed by feeding it simulated seismic signal and observing the recorded data. The response of both accelerometer and gyroscope showed significant particle motions similar to those of earthquake seismograms. Hence, the use of tri-axial IMU as a sensor for seismic activity monitoring is considered to be suitable. Keywords: seismometers- tri-axial Inertial Measurement Unit- Micro Electro Mechanical System Share Link | Plain Format | Corresponding Author (Djoko Hari Praswanto)

62	Information Processing and Engineering	ABS-77
Digital Signage: Digital Transforming Content as an Information Service in Society 5.0 Dimas Indra Laksmana (a*), Sri Indriani (b), Kiswandono (c), Aria Dian Tri Wahyuni (d) a, b, c) National Institute of Technology Malang *indra[at]lecturer.itn.ac.id d) Nurul Huda Maskuriya Islamic College Malang Abstract The development of information and communication technology has triggered a digital transformation that has changed the industrial. Internet of Things (IoT), Artificial Intelligence (AI) and robotics bring significant changes to society. Combining machines, workflows and systems with intelligent network deployment throughout the process. Society 5.0 is a human centered and technology based concept of society. This phenomenon builds the idea of technology and humans coexist. The purpose of this study is to integrate life between virtual and physical in a good and balanced manner and minimize inequality and be human centered, so that there will be harmony towards improving human life, changing life patterns that are in harmony with technology that is connected by technology or data. The ability to think creatively and innovatively by utilizing technology and information, becoming all digital that offers convenience and time and cost efficiency to facilitate, comfort and balance needs. Digital Signage is basically a form of digital display, such as television, which is used to display notifications, public announcements, advertisements, and so on, both in the form of static text-based information, running text, videos and static images perfectly. Keywords: Digital Signage- Society 5.0 Share Link | Plain Format | Corresponding Author (Dimas Indra Laksmana)

63	Information Processing and Engineering	ABS-90
System Study Of Economic Inequality In The Malang Raya Agglomeration Region Widiyanto Hari Subagyo Widodo (a*), Annisaa Hammidah Imadudinna (b), Agustina Nurul Hidayati (b) Institut Teknologi Nasional Malang Abstract Each region has the potential to grow and develop according to their respective conditions. The difference in these conditions results in inequality in the speed of growth and development in each region, this condition is known as disparity. The gap will be a problem if there is a gap that is too large and is caused by the wrong development system, so that it can be a cause of unrest, dissatisfaction and even a separatist movement that wants to separate itself from the Unitary State of the Republic of Indonesia. The basic problem in regional development in the Metropolitan Area, especially Malang Raya is the gap between regions where development is monocentric, centered on Malang City. Responding to such conditions, it is necessary to formulate a regional disparity system in Malang Raya, to find out the extent to which development and regional growth are concentrated in Malang Raya. In addition, it is hoped that through the formulation of the regional disparity system, it can be a reference so that the direction can minimize regional disparities in Malang Raya. Keywords: Development- Inequality- Regional economy- System Share Link | Plain Format | Corresponding Author (Widiyanto Hari Subagyo Widodo)

64	Information Processing and Engineering	ABS-103
Review of the Literature on Brain Computer Interface (BCI) Feature Extraction Using EEG Signals Ahsan Mumtaz (a*), Iman Elawady (b,a), Ismail Rakip Karas (a) a) Department of Computer Engineering, Faculty of Engineering, Karabuk University, Karabuk, Turkey *Samahsan540[at]gmail.com b) Department of Electrical Engineering, Ecole Nationale Polytechnique d^Oran Maurice Audin, Oran, Algeria Abstract Brain-Computer Interface (BCI) systems are presented as a means for disabled individuals incapable of motor response to interface with a computer via brain signals. The purpose of a BCI is to convert brain activity into a digital command for a computer. How to extract characteristics from EEG data with random time-varying fluctuations and classify them as precisely as feasible is a major challenge in contemporary BCI research. Techniques for feature extraction are used to extract the features that indicate a unique property extracted from the pattern of brain signal. Historically, EEG analysis was limited to eye inspection alone. Visual assessment of the signal is very subjective and does not lend itself to standardization or statistical analysis. In order to quantify the information in the brain signal, a number of distinct approaches were developed. There are numerous linear and nonlinear approaches for feature extraction. This paper aims to provide a basic introduction to EEG signals and the BCI technology. The report also contains an overview of the typical techniques used for signal feature extraction. Keywords: Brain Computer Interface (BCI), EEG Electrocardiography,Signals,signal-to-noise ratio (SNR) Share Link | Plain Format | Corresponding Author (IMAN ELAWADY)

65	Internet of Things	ABS-92
Design and Analysis of Cabin Carbon Monoxide Warning System Erfan Rohadi, Rudy Ariyanto, Indrazno Siradjuddin, Kristinanti Charisma Politeknik Negeri Malang Abstract Amount of Carbon Monoxide (CO) in the car above threshold can increase the risk of poisoning passenger. A warning system to passengers is needed in anticipating the risk purpose. In this research the simple design warning system of Carbon Monoxide is proposed. The MQ-7 as Carbon Monoxide Censor and the DHT-22 as temperature sensor are used respectively. The data censors are collected due to examining Carbon Monoxide levels. In the experimental condition are set on car air conditioning in both off and on positions. Furthermore, the condition is set on stop and moving car. the Carbon Monoxide threshold is set on 8 ppm. Hence, the data is sent to the smartphone by using bot telegram when the Carbon Monoxide above the threshold. The functional system test show that the proposed warning system is working properly and small delay time on transferring data to smartphone. As a result, the simple warning system is promising as car warning system of Carbon Monoxide. Keywords: Warning System, DHT-22, MQ-7, Sensor, IoT Share Link | Plain Format | Corresponding Author (Erfan Rohadi)

66	Low emission and renewable advanced material	ABS-17
EFFECTIVENESS OF ARECA (Areca Catechu) SEED EXTRACT CONCENTRATION AS A GREEN INHIBITOR AND IMMERSION TIME ON STEEL CORROSION CONTROL Dewi Wahyuningtyas, Ayu Asmi Puspita, Eka Sulistyaningsih Institut Sains & Teknologi AKPRIND Yogyakarta Abstract Corrosion is a process of metal degradation due to redox reactions between metals and various substances in their environment that produce unwanted compounds or often called rust. Areca nut extracts contain fairly high tannin compounds. These compounds are used as a green inhibitor because they can reduce the metal corrosion rate. The aims of this study are to find out the effect of increasing of inhibitor concentration on the corrosion rate and inhibition efficiency, and to find out the effect of the immersion time of steel on the corrosion rate and inhibition efficiency. The methods used in this study consisted of four stages, namely steel plate preparation, inhibitor solution making, steel immersion with inhibitor solution and inhibitor analysis of areca nut. The process of making an inhibitor solution from areca nut with a concentration of 0- 0.5- 1- 1.5- 2- and 2.5 g/L used hydrochloric acid solutions of 0.1 N as corrosion media and with a immersion time of 6 hours, 12 hours, 18 hours, and 24 hours. The optimum result obtained for the variation in inhibitor concentration was at 2.5 g/L with the lowest corrosion rate value of 0.5133 mpy and its highest efficiency value of 97.61%. The optimum result for the variation in immersion time was obtained at 24 hours. Keywords: areca nut, corrosion rate, extraction, green inhibitor, inhibition efficiency Share Link | Plain Format | Corresponding Author (Dewi Wahyuningtyas)

67	Mechanical, Energy Conversion and Storage Technologies	ABS-18
DESIGN OF SOLAR PANEL FOR ELECTRIC CAR POWER SUPPLY WITH FOUR SELENOID IN-LINE ENGINE Aji Pranoto1, a) and Ellyawan S Arbitarso2, Syafriyudin 3, b)lease Just Try to Submit This Sample Abstract Author Affiliations 1,2 Mechanical Engineering Departement, Institut Sains dan Teknologi AKPRIND Yogyakarta 3 Electrical Engineering Departement, Institut Sains dan Teknologi AKPRIND Yogyakarta Abstract Abstract. The development of the use of electric cars as an alternative to the use of cars continues to be developed. The emergence of technological innovations in the field of motor propulsion from initially using a brushed or brushed motor to a brushless one has further increased the efficiency and effectiveness of electric cars that have better capabilities. The solenoid machine is a machine that requires electrical energy as its propulsion. This engine will be used to replace the combustion engine (gasoline or diesel engine) which is currently commonly used in motor vehicles (cars). In its use, the car is used mobile (moving). So we need a power plant that can move and is environmentally friendly. Solar panels mounted on the front and rear spoilers of the car will get maximum electrical energy output and increase the down force of the car. In addition, this electric car is also designed with a solar-powered generator source so that it can provide additional charging current to the battery. The placement of the solar panel on the spoiler is appropriate because it can help increase the down force when the car is running. The number of 40 wp solar panels is enough to meet the power needed by the engine when the weather conditions are sunny (hot). The number of 4 solar panels of 10 wp each was chosen because their size is smaller (in terms of width) than using 2 panels of 20 wp each. The engine settings are set so that the engine gets maximum power. So if the engine is set at a lower voltage then the current stored in the battery will be greater. The output of the solar panels may be greater if the car is running because the solar panels can get cooling from the wind. The greatest power when taking 220 grams in the morning is at position C with a power of 34.5 W (10.55), during the afternoon at position B with a power of 37.1 W (11.55), in the afternoon position A with a power of 14.2 W (14.25). ). Keywords: electric car, PLTS, solenoid. Keywords: electric car, PLTS, solenoid. Share Link | Plain Format | Corresponding Author (Aji Pranoto)

68	Mechanical, Energy Conversion and Storage Technologies	ABS-107
Energy Absorption and Deformation Pattern of Honeycomb Hybrid Crash Box under Frontal Load Fina Andika Frida Astuti, Moch. Agus Choiron, Anindito Purnowidodo, Yudy Surya Irawan Mechanical Engineering Department, Brawijaya University Abstract Many studies on crash box design have focus to improve energy absorption performance in case of collision. Studies on crash box design are inspired by nature, one of which is the honeycomb design structure. The development of 3D printer technology greatly supports the production of complex design. Polylactic acid (PLA) material with a carbon base has an opportunity as an alternative material for hybrid crash boxes. The purpose of this study is to determine the energy absorption and deformation pattern of the honeycomb hybrid crash box design. The crash box outer wall has a tube cross section using aluminum and honeycomb filled with PLA carbon filament material. The crash box models are varied as circular tube (CT), honeycomb structure (HS), and honeycomb hybrid crash box (HHC). The quasi static test is used with a speed of 5 mm/min. Based on the test results, the honeycomb hybrid crash box deformation pattern is concertina mode. Energy absorption of the HHC design increased by 17.95% compared with sum of absorption energy of CT and HS. This model proves the use of honeycomb filled increases energy absorption of crash box. Keywords: crash box, honeycomb, hybrid, 3D printing Share Link | Plain Format | Corresponding Author (Moch. Agus Choiron)

69	Mechatronic and Robotics	ABS-110
A MEDICINE AND FOOD DELIVERY ROBOT FOR COVID-19 HOSPITAL USING LABVIEW MYRIO FPGA Irmalia Suryani Faradisa, Agung Darmawan, Yudi Limpraptono, Abraham LOmi Institut Teknologi Nasional Malang Indonesia Abstract Corona virus is a type of virus that has been identified as a cause of disease in the respiratory tract and can spread quickly. To overcome the spread of the virus, a preventive measure is carried out in the form of quarantine in a room or quarantine room. Patients in quarantine rooms certainly need drugs to treat exposure to the corona virus. The delivery process to the quarantine room certainly makes health workers vulnerable to contracting this virus. This drug and food delivery robot was created to replace the role of health workers in delivering drugs and food to the rooms of COVID-19 quarantine patients. This robot can send medicine and food automatically according to the given room number input. This robot uses the concept of odometry, which moves to follow a trajectory in the form of the distance between the starting point and the end point (destination) on the coordinate axis of the robot^s movement. In designing the system using myrio as a controller and programmed with Labview software, a sharp infrared sensor gp2y0a21 as a wall detector, an ultrasonic ping sensor as an obstacle detector in front of the robot, an infrared sensor tcrt5000 as a line detector, and a rotary encorder sensor as a robot mileage detector. Based on the experimental results, this robot has been able to work well in the process of delivering drugs and food to each room according to the given room number input. Keywords: Myrio, Labview, Omnidirectional, Odometry Share Link | Plain Format | Corresponding Author (Irmalia suryani Faradisa)

70	Operation Research	ABS-96
Linear programming approach to optimization of stone milling products: A case study M. Imron Mas^ud Univeristas Yudharta Pasuruan Abstract The stone milling industry is a company whose raw material sources come from nature in the form of stone where the production process is carried out manually or with automation. The aim of this research is to optimize stone milling products using the Linear Programming method. The results showed that there were three kinds of product variants produced by backfill sand with a production of 72 tons, with a production of 80 tons of fine sand, and gravel with a production of 64 tons with a profit value of 1.50188e+010. Keywords: Linear programming- optimization- stone milling products Share Link | Plain Format | Corresponding Author (M. Imron Masud)

71	Planning Policy, Human settlement	ABS-6
Abstract. This study aims to determine the role of the Village Government in managing tourism objects in increasing the locally-generated revenue of the Suci Village, Panti District, Jember Regency and identifying the problems faced by the Suci Village Government. The study used qualitative methods with data collection techniques using triangulation, a combination of interviews, observations, and documentation. The results of this study were obtained by conducting socialization and planning for the development of tourist areas, forming tourism awareness group called Pokdarwis, promoting tourism to social media, and conducting comparative studies to other tourist villages. While the factors that influence the implementation of the role of the Village Government in tourism management are the natural conditions that are affected by the seasons, the facilities and infrastructure that are not yet widely supported, and the state of human resources, namely the lack of awareness and ability of the community towards the management of tourism objects so that there is a need for training and intensive assistance from the Suci Government Bayu Aprillianto (a*), Moch. Shulthoni (b), Ahmad Roziq (c), Siti Komariyah (d) University of Jember Jalan Kalimantan 37, Jember Indonesia Abstract Abstract. This study aims to determine the role of the Village Government in managing tourism objects in increasing the locally-generated revenue of the Suci Village, Panti District, Jember Regency and identifying the problems faced by the Suci Village Government. The study used qualitative methods with data collection techniques using triangulation, a combination of interviews, observations, and documentation. The results of this study were obtained by conducting socialization and planning for the development of tourist areas, forming tourism awareness group called Pokdarwis, promoting tourism to social media, and conducting comparative studies to other tourist villages. While the factors that influence the implementation of the role of the Village Government in tourism management are the natural conditions that are affected by the seasons, the facilities and infrastructure that are not yet widely supported, and the state of human resources, namely the lack of awareness and ability of the community towards the management of tourism objects so that there is a need for training and intensive assistance from the Suci Government. Keywords: Government, PAD, Tourism, Village Share Link | Plain Format | Corresponding Author (Bayu Aprillianto)

72	Planning Policy, Human settlement	ABS-21
Agroindustrial Firm Financial Strategy during Pandemic: Case Study in PTPN X, Jember Regency Bunga Maharani- Bayu Aprillianto- Agung Budi Sulistiyo- Novi Wulandari- Muhammad Miqdad University of Jember Abstract Abstract. This qualitative research aims to explore the financial policies and strategies taken by companies in the agro-industrial sector in an effort to improve company financial performance, especially during the Covid 19 pandemic. The focus of the research is using a case study approach conducted at PTPN X Jember. PTPN X Jember is an agro-industry company that produces world-class tobacco as its main product. Through in-depth interviews and periodic observations, data mining was carried out by considering one finance director as the main informant and supplemented by an in-depth review of financial report documents as secondary data reinforcement. Data analysis adopts Miles and Huberman^s technique with three streams of activities that occur simultaneously, namely: data reduction, data presentation, and drawing conclusions/verification. The results of the study indicate that there is a strong preference for PTPN X to carry out a cost optimization strategy to encourage increased performance which has an impact on increasing the quantity and quality of products. Quality products have a direct effect on increasing profits despite the Covid 19 pandemic situation. This research contributes to the development of financial management literature, especially corporate financial strategies during times of crisis in the agro-industrial sector. Keywords: agro-industry- financial performance- The increasing of Human Resources quality- cost optimization strategy. Keywords: Agro-Industry- Capital Structure- Financial Policiy- Firm Strategy Share Link | Plain Format | Corresponding Author (Agung Budi Sulistiyo)

73	Power System, Smart Grid and Microgrid System	ABS-106
Optimal Integration of Wind Turbine into the grid with Artificial Intelligence-based microgrid controller Ni Putu Agustini1, a) and I Made Wartana2, b) 1,2Department of Electrical Engineering, Faculty of Industrial Technology, National Institute of Technology (ITN) Malang 65145, Indonesia Abstract The proliferation of renewable energy resources (RES) in the network is because of the increasing demand for green energy due to the growing awareness of climate change. It requires utilities to connect The RES close to the load for better system reliability. Integrating the RES into the existing power grid without a significant system redesign is one of the main issues that need to be studied. An effective technique for solving this problem is integrating these units into a microgrid, the gateway to emerging a smart grid. This paper investigates the effect of microgrid integration into the grid to achieve safe maximum instantaneous RES penetration. The microgrid models include wind, solar, and energy storage in the grid. The double-fed induction generator (DFIG) wind turbine (WT) type is utilized to integrate into the grid^s dynamic model system by taking into account the automatic voltage regulator and the turbine governor (TG). The maximum acceptable load on each bus is determined explicitly by the Algorithm. The artificial intelligence-based heuristic method has been utilized in the controller to attain the optimal harmless rapid WT integration limit. When examined on a modified IEEE 14-bus microgrid system, the results seem pretty encouraging. Keywords: Artificial intelligence- Microgrid Penetration- Renewable energy- Wind turbine Share Link | Plain Format | Corresponding Author (I Made Wartana)

74	Power System, Smart Grid and Microgrid System	ABS-108
EFFECTS OF RENEWABLE ENERGY INTEGRATION ON HARMONIC RESONANCE OF POWER SYSTEM Awan Uji Krismanto 1, Muhammad Iqbal 1, Abraham Lomi 1, Irrine Budi S 1, Sugeng Priyanto 1,2, Aryuanto Soetedjo 1*, Adlan 3 1 Institut Teknologi Nasional Malang, Indonesia 2. PT. YTL, Jawa Timur, Indonesia 3. School of Information Technology and Electrical Engineering, The University of Queensland, Brisbane, Australia Abstract Power system operation and control changes significantly with continuous increase of renewable energy-based power generations and usage of compensator devices. The uncertainties characteristic of renewable energy such as fluctuating condition of wind speed and solar irradiance result in fluctuating power injection to the power system. Moreover, in order to improve stable power injection and stability performance of interconnected power system with penetration of large-scale renewable based power generations, an interface equipment such as power electronic and compensator devices are critically required. Deployment of power electronic devices and compensator devices on the other hand, potentially lead to the occurrence of interaction among those devices namely harmonic resonance. Thigh frequency resonance might cause a failure to the system if it was not handled properly. A comprehensive analytical study is demanded to investigate the effect of increasing renewable energy penetration on harmonics resonance. It was clearly observed that higher values of compensator devices and power injection from renewable energy decreased the harmonics resonance and hence improved the power system stability performance. Keywords: Renewable energy, Harmonic resonance, power stability Share Link | Plain Format | Corresponding Author (Aryuanto Soetedjo)

75	Power System, Smart Grid and Microgrid System	ABS-109
Monitoring System Design of a 4 kWp Off-grid Solar Power Plant Widodo Pudji Muljanto, Abraham Lomi, Radimas Putra Muhammad Davi Labib, Muhammad Wahyu Solihin Institut Teknologi Nasional Malang, KM.2, Jalan Raya Karanglo, Malang, 65153, Indonesia. Abstract This paper presents a monitoring system design for an off-grid solar power plant with a capacity of 4 kWp. This off-grid solar power plant system was built on campus 2 of Institut Teknologi Nasional Malang. The purpose of a monitoring system is for collecting and presenting information systematically about the state of the off-grid solar power plant system. This information can be accessed anywhere and anytime by users. Hardware used includes SPM91 to read energy meters digitally, PZEM-017 as a Modbus-based measuring instrument, and communication devices to send data to a database server. The dashboard of the monitoring system was built using Haiwell SCADA software. The results obtained are in the form of a monitoring system that can display parameter data, data loggers, and graphs of the condition of the off-grid solar power plant. Keywords: Monitoring, Off-grid, Solar Power Plant, Haiwell SCADA Share Link | Plain Format | Corresponding Author (Radimas Putra Muhammad Davi Labib)

76	Project Management	ABS-101
LEADERSHIP AS A MEDIATION OF THE INFLUENCE OF INTELLECTUAL CAPITAL AND COMPETENCE ON ARCHITECT PERFORMANCE IN EAST JAVA Breeze Maringka, Nusa Sebayang Institut Teknologi Nasional Malang Abstract Architect^s performance is examined in this study because it was the architect who gave rise to the concept of planning/development. Architects^ performance is influenced by leadership, whether or not leadership behavior is effective, influenced by several factors, including the competence factor. Competent architects will certainly be able to carry out their functions, duties, and responsibilities better than those who are less competent. This study aims to analyze the impact of intellectual capital and competence on leadership, analyze the impact of intellectual capital and competence on the performance of architects, analyze the impact of leadership and competence on the performance of architects, analyze the impact of intellectual capital and competence on the performance of architects through leadership. The sample in this study was 200 architects. The data analysis technique used structural equation modeling (SEM) analysis. The results of the analysis show that intellectual capital and competence have an impact on leadership. Intellectual capital and competence have an impact on the performance of the Architect. Leadership has an impact on the performance of the Architect. Intellectual capital and competence have an impact on the performance of the Architect through leadership. Keywords: Leadership, Architect Performance, Competence, Intellectual Capital Share Link | Plain Format | Corresponding Author (Breeze Maringka)

77	Quality Control and Management	ABS-30
INCREASING EMPLOYEE ENGAGEMENT THROUGH QUALITY OF INTERNAL COMMUNICATION WITH A HYBRID METHOD IN ONE OF LARGEST TRADING COMPANIES IN INDONESIA Endang Tri Handajani1, Gembong Baskoro2 Swiss German University Master of Business Administration Abstract A study on employee engagement conducted by HR Exchange Network.com, sponsored by Workday after more than a year of the pandemic stated that, there are many changes in work patterns and job opportunities and types of work that develop, related to internal communication, employee motivation, organization relations, and industrial relations. This research aims to determine the effect of hybrid internal communication and employee motivation on employee engagement, either directly or indirectly. The other purpose of this research is to see the effect of organization relations and industrial relations on employee engagement. This quantitative research took as many as 398 employees of PT XWZ selected as respondents in this study, using SEM PLS as an instrument to test the hypothesis. The results of this study indicate that the internal hybrid communication method has a positive effect on industrial relations (IR) and organization relations (OR). Employee motivation does not have a positive effect on industrial relationship and organization relationship, however OR and IR has a positive effect on employee engagement (EE). OR mediates the relationship between hybrid internal communication and EE while IR does not mediate the relationship between employee motivation and EE. Keywords: Hybrid Internal Communication, Employee Motivation, Industrial Relations, Organization Relations, Employee Engagement. Share Link | Plain Format | Corresponding Author (Endang Tri Handajani)

78	Quality Control and Management	ABS-35
Graduate Study with Online Education in the Post Pandemic Era: an experiential case study Gembong Baskoro1), Edhie Sarwono2), Endang Tri Handajani3), Dena Hendriana1) 1) Master in Engineering Management, Swiss German University 2) United Tractors Tbk. 3) Yayasan Karya Bakti UT (YKBUT) Abstract Having graduate degree such as master is now become an important trend for professionals. Seemingly that the trend is increasing during the pandemic as professionals choose to utilize their spare time during working from home (WFH) to improve their education. This positive trend is possible because higher education institutions (HEI) have no other choice other than adopting online education and performing online learning. Furthermore, this paper has demonstrated in several experiential cases that the satisfaction of online education has changed significantly during and post pandemic time. Consequently, to sustain, the online education is now must fulfil a standard requirement of satisfaction. Therefore, this paper will elaborate the education pedagogy, concept of multi-disciplinary master^s program (MDMP), discuss and assess important requirement factors of online education after performing experiential cases. This paper also draw conclusion from the cases related to MDMP. Keywords: Online Education, Online Learning, Multi-Disciplinary Master^s Program Share Link | Plain Format | Corresponding Author (Gembong Baskoro)

79	Quality Control and Management	ABS-93
Increasing Customer Satisfaction Using Integration Of Service Quality, Kano and Quality Function Deployment Tanto (*1), Ellysa Nursanti (2), Dimas Indra Laksmana (3) 1Mechanical Engineering Department, Brantas Karangkates Vocational High School Malang Indonesia 65165 2,3 Industrial Engineering Department, Postgraduate Program, National Institut Of Technology ITN Malang Indonesia 65145 Abstract Abstrak. The results of the initial survey through interviews with several students and parents of students found dissatisfaction with school services, there was a big difference between ideal and actual conditions. This is supported by data on customer dissatisfaction complaints and there has been no effort from the school to fix it, no previous research has focused here. So that this research is important to do for the survival of this educational institution so that it can still exist amid a lot of competition between schools. The purpose of this study was to determine the efforts that can be made to improve the quality of service. The population in this study involved grade 12 students. The sampling technique used a questionnaire, while the analysis used was the integration of the Servqual, Kano, and Quality Function Deployment (QFD) methods. The results of the study using the Servqual method obtained 25 service attributes showing negative results. While the Kano method obtained 22 important category attributes. Based on the results of the integration of Kano^s service quality method into the QFD method, it was found that 3 attributes became priorities for improvement, namely implementing 5S, holding teacher, and employee polls, and adding practical tools. The improvement solution for the Brantas Vocational School is implementing 5S management, conducting regular employee performance assessments by holding polls, and adding practical equipment in the department. This solution was chosen because of the high importance of how. Keywords: Customer Satisfaction, Servqual, Kano, QFD Share Link | Plain Format | Corresponding Author (Tanto tanto)

80	Quality Control and Management	ABS-94
Quality Improvement of Floor Cleaner Packaging Using Six Sigma and Continuous Improvement Ade Harira Setiawan (1*) Ellysa Nursanti (2) Dimas Indra Laksmana (3) 1 Post Graduate Student of Industrial Engineering Department. National Institute of Technology ITN Malang Indonesia 65145 2 and 3 Industrial Engineering Department, Post Graduate Program, National Institute of Technology ITN Malang Indonesia 65145 Abstract Abstract. There is a product defect in the 700 ML Lemongrass Refill Floor Cleaner packaging, which is 26,236 units from June to December 2021, so that the cost overrun is Rp. 15,085,700. This study aimed to improve the quality of the 700 ML Lemongrass Floor Cleaner packaging. The research method used is quantitative, so this study examines in depth the quality of product packaging with Six Sigma and Continuous Improvement methods. From the results of research conducted for the DPMO value before any improvement was 22,711 with a sigma level of 4.51 then improvements were made so that the DPMO value became 12,517 with a sigma level of 5.26 therefore in this study resulted in a decrease in waste in the production process. So it can be concluded that we can provide solutions by replacing spare parts that are no longer suitable for use, make sure the machine is set correctly, make the standard materials used without defects and maintain their shape, arrange the pouch arrangement as neatly and efficiently as possible, check the pouch at the supplier, adjust the machine settings, make sure it is neatly organized and perform regular machine maintenance according to the SOP. Keywords: Continuous Improvement, Floor Cleaner Packaging, Six Sigma, Quality Keywords: Continuous Improvement, Floor Cleaner Packaging, Six Sigma, Quality Share Link | Plain Format | Corresponding Author (Ade Harira Setiawan)

81	Quality Control and Management	ABS-100
Quality Improvement of Fungicide Products Packaging Using FMEA and Continuous Improvement Alan Maulidan Firdaus, Ellysa Nursanti, Fuad Achmadi Industrial Engineering Department, Undergraduate Program, Wahidiyah University Kediri Indonesia 64114 Industrial Engineering Department, Postgraduate Program, National Institute of Technology ITN Malang Indonesia 65145 Abstract In the production process, companies often find product defects. Defects in this product are unavoidable, but can be reduced. Defects can occur in the main product or supporting products such as packaging. Product defects need to be handled by the company so that production activities run well and the company does not bear a lot of losses. In this study, researchers need to reduce defects in the Victory WP 75 Fungicide product by analysing the causes of these defects and providing continuous improvements. The methods used in this research are Failure Mode and Effect Analysis (FMEA) and Continuous Improvement. The results showed that the highest defect risk value was torn packaging defects, the RPN (Risk Priority Number) value was 574. Then the results of the analysis using fishbone diagrams found three root causes, including worn horizontal sealer bearings, Ignoring SOPs. The improvements are optimizing the feeling of the heating element (heater), replacing the sealer bearing and confirming the operator^s performance SOP. Then a continuous improvement stage is carried out with PDCA (Plan, Do, Check, Actions) so that the packaging defects of the Victory WP 75 Fungicide product are reduced and continue to be improved. Keywords: Continuous Improvement, FMEA, Fungicide Product Packaging, Quality Share Link | Plain Format | Corresponding Author (Alan Maulidan Firdaus)

82	Quality Control and Management	ABS-102
Mapping Of Management System Model to ISO 9001:2015 Riski Ramadan 1, Kartika Puspa Negara 2, and Indradi Wijatmiko 3 Universita Brawijaya Malang Abstract Measurement of Quality Management System (QMS) in construction projects is very important to assess the fulfillment of quality standards. A comprehensive and up-to-date standard setting is paramount. Many research has been conducted to develop a Quality Management System (QMS) measurement, however only few studies focused on comparing the existing quality variables assessment with ISO 9001:2015 . This research aims to map out ISO 9001:2015 to find additional variables that are not incorporate inside it. Six Sigma, Deming, Total Quality Management (TQM), Quality Management System (QMS), Baldrige Performance Excellence Framework, and LEAN Manufacturing are models for developing Quality Management Systems (QMS) that are widely applied in the construction industry today. This research produces eight additional variables as audit materials which are expected to complement ISO 9001:2015 in its application and development in construction services. The eight variables are Break down barriers between departments, Eliminate pressure, Eliminate arbitrary numerical targets, Respect people, Contribution to society, Reduce cycle time, Increase process transparency, and Focus on global process control. Keywords: ISO 9001 2015, Quality Management System, additional variables, Critical Factor. Share Link | Plain Format | Corresponding Author (Riski Ramadan)

83	Reliability and Maintenance Engineering	ABS-7
Utilization of Automatic Test Case Generation Methods for Various System Specifications Yuto Fujita (a), Kiyoshi Ueda (a) a) Graduate School of Engineering, Nihon University 1 Nakagawara, Tokusada, Tamuramachi, Koriyama, Fukushima Prefecture, Japan *kiyoshi.ueda[at]nihon-u.ac.jp Abstract The development and maintenance costs of the high-quality software tend to remain high because that will be used for social infrastructure. Previous studies formulated the description style of the requirements specification in a form with which a machine could deal and had customers use this style to describe the requirements specification. However, no method has been developed to generate test cases from natural language documents. We proposed the method for automatically generating the test cases of system testing from the requirement specification. We utilize this method for various system specifications. We confirmed usefulness of the proposed methods that obtain the sufficient accuracy. We also utilized proposed method for large scale communication node software and clarify the characteristics of the proposed method depends on the specification. Keywords: Automatic test cases generation- Machine learning- Software specification- Large scale communication software Share Link | Plain Format | Corresponding Author (Kiyoshi Ueda)

84	Reliability and Maintenance Engineering	ABS-19
SPARE PARTS INVENTORY CONTROL TO MINIMIZE TOTAL INVENTORY COST USING CONTINUOUS REVIEW SYSTEM AND PERIODIC REVIEW SYSTEM APPROACHES Rahayu Khasanah*, Masih Ingdana Fadillah, Imam Sodikin, Joko Susetyo AKPRIND Institute of Science and Technology *rahayu.khasanah[at]akprind.ac.id Abstract Spare part supply must be maintained at a specific level in order to balance the demand for spare parts with the amount of spare parts required for maintenance activities to perform smoothly. Based on the findings from interview with the warehouse supervisor in the case study, it was determined that the warehouse supervisor intuition has been used to control the inventory of spare parts thus far. According to the collected data, there are 19 types of spare parts (8,509 pieces) that have been in storage for an extended period of time, resulting in high storage costs, and 18 types of spare parts (884 pieces) that are in short supply, resulting in high ordering costs. The corporation desires a modification that will improve inventory control and minimize the total cost of inventory. To improve the company control over the 229 types of of shuttle machine spare parts, it is important to classify spare parts based on the inventory control method. ABC classification is used to categorize spare parts according to their usage value, VED classification is used to classify spare parts according to their critical value in the machine, and HML classification groups spare parts according to their purchase price. The best ordering variables (Q), safety stock, reorder point, and total cost are produced through continuous review control. While ordering intervals, inventory targets, and overall costs are determined by Periodic Review control variables. Using ABC, VED, and HML classification, the classification resulted into 66 spare parts. The entire saving cost of inventory management as proposed is Rp. 2.134.213.339. Keywords: ABC Classification- VED Classification- HML Classification- Continuous Review- Periodic Review Share Link | Plain Format | Corresponding Author (Rahayu Khasanah)

85	Reliability and Maintenance Engineering	ABS-98
Voltage Stability Analysis using Probability Density Function with Real Loads on Karangploso^s Feeder Singosari Distribution Systems Irrine Budi Sulistiawati1), Ahmad Iqbal Zajuli1), Sugeng Priyanto1)2), Awan Uji Krismanto1), Adlan3) 1)Department of Electrical Engineering, Institut Teknologi Nasional Malang, Indonesia 2)PT. YTL, Jawa Timur, Indonesia 3)The University Of Queensland, Australiamit This Sample Abstract Institut Teknologi Nasional Malang Abstract The addition of 0.5 MWp of PVDG in the Singosari distribution system for the Karangploso feeder located in East Java, Indonesia will have an impact on the existing system. Voltage stability in the system is a major concern to guarantee system safety operations that have an impact on consumers. System analysis using Probability Density Function (PDF) is used to ensure that the voltage profile on the system due to PVDG injection is still within the allowable value. The simulation results show that bus 74 have an increased voltage profile of 0.97 p.u using the PDF method used. Keywords: Probability Density Function, Voltage Stability, Photovoltaic Distributed Generations, Voltage Profile Share Link | Plain Format | Corresponding Author (Irrine Budi Sulistiawati)

86	Reliability and Maintenance Engineering	ABS-104
Determining Preventive Maintenance Interval to Increase the Reliability of Air Turbine Engine Starter Ellysa Nursanti, Sibut, Sunarjono Prijohutomo Industrial Engineering Department, Postgraduate Program, National Institute of Technology, ITN Malang, Indonesia 65145 Mechanical Engineering Department, Industrial Faculty of Engineering, National Institute of Technology, ITN Malang, Indonesia 65145 Maintenance Depot 30, Abdul Rachman Saleh Airforce Base, Malang, Indonesia, 65154 Abstract Air turbine engine starter has been used to start the engine in an aircraft, in this case Hercules type C-130. In many cases of flight missions, aircraft could be failed to start due to component malfunctions inside the air turbine engine starter system. Therefore, this study is needed to guarantee that reliability of the system in a good condition. This research will determine the optimum preventive maintenance interval which could increase the reliability of the aircraft system. Fault Tree Analysis is being used to investigate the relationship between components in the system, so that the malfunction components that may cause system failure can be detected earlier. By using parameter of Mean Time to Failure (MTTF), it is found that these following components are critical i.e Pinion Gear, Jaw Coupling, Output Shaft, and also Turbine Rotor. As the result, it is found that Planetary Gear Retainer is the most critical one MTTF at 1626 hours. The 2nd rank is Thrust Plate at 1629 hours then Jaw Coupling at 1674 hours followed by Planetary Gear at 1768 hours then Pinion Gear at 1867 hours, Inner-Outer Plate at 2003 hours and the last is Ball Bearing at 1957 hours. To maintain optimum system reliability at R=0.95, then the system should be maintained every 1589 hours periodically and may become shorter when failure has been detected earlier. Keywords: Air turbine engine starter, Fault Tree Analysis, MTTF, Preventive Maintenance Interval, Reliability Share Link | Plain Format | Corresponding Author (Ellysa Nursanti)

87	Renewable Energy Technologies	ABS-9
EXPERIMENTAL STUDY A LOW SPEED-ONE PHASE GENERATOR WITH PERMANENT MAGNETIC RADIAL FLUX Syafriyudin1,Muhammad Suyanto2, Aji Pranoto Institut sains dan Teknologi AKPRIND Yogyakarta Abstract A low speed permanent magnet generators can be an alternative to generate electrical energy that does not require fuel oil and does not cause pollution. The present work discusses a generator with a low speed permanent magnet by utilizing an electric engine type JY2B - 2. The design of the rotor is carried out by placing a neodymium N52 permanent magnet with dimensions of 6 cm x 1 cm x 0.5 cm. The stator was obtained from a JY2B - 2 type electric motor. The test was carried out at a generator rotation speed of 375 rpm with a frequency of 49.9 Hz under a load test from 40 watts to 440 watts, producing a voltage of 58.1 Volts at a capacitor of 2.5 &#956-F, using a capacitor of 7.5 &#956-F produces a voltage of 53.3 Volts, and a 10 &#956-F capacitor produces a voltage of 60.5 Volts. The decrease in rotation of the generator is not significant to the increase in load, only around 3 rpm, thus the generator can still work well at a maximum load of 440 Keywords: Radial flux generator, permanent magnet, voltage, generator speed Share Link | Plain Format | Corresponding Author (syafriyudin syafriyudin)

88	Renewable Energy Technologies	ABS-66
THE FIRST ORDER FISCHER-TROPSCH REACTION RATE CONSTANT CALCULATION FROM CARBON MONOXIDE BASED CONVERSION DATA Jimmy, Elvianto Dwi Daryono, Harimbi Setyawati Chemical Engineering Department, National Institute of Technology (ITN) Malang Jln. Raya Karanglo kilometer 2, Malang, East Java, Indonesia 65143 Ph. +62811363906, Fax. +62341417636 Abstract The Fischer-Tropsch synthesis (FTS) converts hydrogen (H2) and carbon monoxide (CO) into linear hydrocarbons as liquid fuel. The combination of Fe and Co (bimetallic Fe-Co) could increase the catalytic activity compared with individual Fe or Co as catalyst. The CO conversion could be use to calculate the reaction constant (k). This study emphasized the first order Fischer-Tropsch reaction constant calculation from monoxide based conversion data within the various temperature and iron-cobalt catalyst ratio. The data obtained from this study would be used to find optimum condition for this biofuel production over Fischer-Tropsch Synthesis. The catalyst performance was observed in a continuous fixed bed reactor using 1 gram Fe-Co/meso-HZSM-5 catalyst, 25 mL/min synthesis gas (15% CO, 30% H2, 55% N2) at various composition iron and cobalt weight ratio (10-40 %wt Fe and 60-90 %wt Co), various temperature (225C, 250C, 275C) at 20 bar. The catalyst 10Fe-90Co/mesoHZSM-5 application at 250C gave the highest CO conversion (58.26%). Kinetically, the value of the reaction rate constant (k) for each condition could be calculated with assuming: first order reaction, differential reactor model, operating conditions running at steady state. The calculation based on 1 gram catalyst in a differential reactor and first order reaction (FA0 = 3.75 mL/min- PA0 = 3 bar- compressibility factor = -0.5613). The best value of k (94210) was obtained from the application of 10Fe-90Co/mesoHZSM-5 catalyst at 250C. Keywords: Fischer-Tropsch- iron-cobalt- first order- CO conversion- reaction rate constant Share Link | Plain Format | Corresponding Author (Jimmy Jimmy)

89	Renewable Energy Technologies	ABS-85
Production of Biodiesel from Used Cooking Oil with Zeolite Supported CaO Catalyst: Effect of Catalyst Mass and Transesterification Reaction Time Elvianto Dwi Daryono, Jimmy, Ferry Setiawan, Siti Sri Wahyuni National Institute of Technology Malang Abstract Used cooking oil as a waste has the potential to be used as biodiesel feedstock. Making biodiesel with a homogeneous base catalyst requires a complicated separation process and can lead to a saponification reaction. Heterogeneous base catalysts can be used to overcome the shortcomings of homogeneous base catalysts where the separation process is simpler, namely by filtration, and the esterification and transesterification processes can be carried out in one process because CaO/ZAA can be used as an acid and base catalyst in both processes. The purpose of this study was to determine the effect of adding CaO/ZAA catalyst and transesterification time in obtaining high concentrations and yields. The results showed that the highest concentration of methyl ester was obtained by adding a 4% catalyst with a transesterification time of 1 hour, which was 0.503566% and the highest yield was obtained by adding a 4% catalyst with a transesterification time of 1 hour, which was 73.57%. Keywords: biodiesel, transesterification, CaO/ZAA, heterogeneous catalyst Share Link | Plain Format | Corresponding Author (Elvianto Dwi Daryono)

90	Safety, Security and Risk Management	ABS-48
Participatory Ergonomics-Based Work Productivity Strategy for Wijaya Kusuma Bakery^s Home Industry P. Vitasari1) , Julian Candra Purnama2) , Sony Harianto3) , Fuad Achmadi4), Suriya Kumar Sinnadurai5) 1), 4)Department Magister of Industrial Engineering, Postgraduate, National Institute of Technology Malang, Indonesia 2), 3)Department of Industrial Engineering, Faculty of Industrial Technology, National Institute of Technology Malang, Indonesia 5)Centre for Modern Language and Human Sciences, Universiti Malaysia Pahang, Malaysia Email: primavitasari19[at]gmail.com Abstract Preliminary information was obtained regarding the declining work productivity of SMEs in bread making. The decline in work productivity was identified in three factors, namely quantity of work, quality of work, and timeliness. This study aims to design standard operating procedures to increase work productivity using a participatory ergonomic approach. The standard operating procedure (SOP) that will be designed is the SOP for increasing work productivity for employees of SMEs making bread in Batu City. While the participatory ergonomics approach is a scientific study that includes methods of developing work quality to increase productivity by teaching awareness of mutual trust that involves all workers. This strategy was chosen because it is thought to be the most suitable for the circumstances of SMEs, where a kinship-based work system with a small number of employees is present. Research method used observation, company documents, and interview. Total 16 employees are involving as participants yield 14 employees and 2 owners. As a result, it is thought that involving employees in SOP design is very likely. The SOPs made will be a reference and guidance for employees at work. The expected output from the development of a strategic design with a participatory ergonomic approach is that employees feel comfortable and safe in doing their work, so that if employees feel well-being condition, it is expected to increase the work productivity of employees of SMEs producing bread. Keywords: Please Jusergonomic participatory, SOP, work productivity, work quantity, work qualityt Try to Submit This Sample Abstract Share Link | Plain Format | Corresponding Author (Prima Vitasari)

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