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31	Innovations in Engineering and Education	ABS-75
Factors Affecting Work Readiness of Grade XII Students Program Modeling and Information Design Skills Building (DPIB) SMK Negeri 5 Bandung Tiara Nurfalah Akbar, Usep Surahman, Indah Susanti Indonesian Education University Abstract This study aims to determine dominant factors affecting work readiness of students of Vocational Senior high Schools (SMK). Program Modelling and Information Design Skills Building (DPIB) 5 in Bandung and 109 students of class XII DPIB was selected as case study school and sample, respectively. This study used the ex-post facto research method with a quantitative approach. Data collection was carried out by using on line questionnaire survey. Structural Equation Modeling (SEM) with the AMOS 23 test was utilized to analize the data. The results showed that the factors of “attitude” (0, 379), and “industrial work experience” (0, 203) significantly influence work readiness. While the factors of “knowledge”, “skills factors”, “work motivation”, and “economic conditions of family” do not significantly influence students’ work readiness. The most dominant factor influencing student work readiness is factor of “attitude”. Keywords: Work Readiness Factors; Student Work Readiness; Structural Equation Modeling (SEM) Share Link | Plain Format | Corresponding Author (Tiara Nurfalah Akbar)

32	Innovations in Engineering and Education	ABS-76
Automatic Waste Transport Equipment in the River Integrated with the SCADA System Dicky Rustandi (a*), Noval Dwi Jayanto (a), Ibnu Hanifah Alem (a), Dandhi Kuswardhana (a) (a) Departement of Electrical Engineering Education, Faculty of Technology and Vocational Education, Universitas Pendidikan Indonesia. Abstract Humans use goods and services to meet their daily needs. The number of items used by humans also increases the amount of waste generated every day. Technological developments, industrial developments, and the increasing population are factors in the increasing amount of waste, especially plastic waste. The plastic waste crisis in Indonesia has become so acute that the army has been deployed to provide reinforcements, especially to deal with the waste problem in the Citarum River, West Java. In Bandung, Indonesias third largest city, there are shaking sights of plastic waste so thick that it looks like an iceberg and clogs up sat the major tributary. This is caused by residents who do not have the awareness to throw garbage in the river. In addition, the access to garbage disposal around residential areas is quite far away , so that residents often throw garbage into the river. With technology, these problems can be resolved and help the process of processing waste in rivers. This technology can clean waste that is disposed of into the river automatically, can sort plastic and non-plastic waste, and can accommodate trash. The technology is called "Automatic Waste Transport Equipment Integrated with the SCADA System (Supervisory Control And Data Acquisition). With the SCADA system , which makes the system on this tool more accurate, whether it is in processing the amount of waste data, managing waste disposal, and troubleshooting or when there is damage to the tool, it immediately provides complete and accurate information. So in general, SCADA includes Internet of Things systems, control systems, processing systems and action management. Keywords: Garbage; River; Technology; SCADA Share Link | Plain Format | Corresponding Author (Dicky Rustandi)

33	Innovations in Engineering and Education	ABS-78
Class Learning Concentration Control Application as Teaching Support in Determining Learning Strategies Kusyandi (a*), Abdul Hanan Fauzi Alfani (a), Elfira Rifa Salim (b), Mumu Komaro (a) a) Departement of Mechanical Engineering Education, Faculty of Technology and Vocational Skills Education, Indonesia University of Education Jalan Dr. Setiabudhi 229, Bandung 40154, Indonesia *kusyandi[at]upi.edu b) Departement of Electrical Engineering Education, Faculty of Technology and Vocational Skills Education, Indonesia University of Education Jalan Dr. Setiabudhi 229, Bandung 40154, Indonesia Abstract Concentration in learning process is important for students to be able to understand the learning materials. One of the factors that can reduce student’s concentration in learning process is sleepiness. The teacher visually is not always able to distinguish the conditions of each student. Physical conditions that can indicate someone is sleepy is their pulse decreases from its normal condition. The aim of this product is to help teachers knowing the realtime concentration of their students using pulse sensor that can measure the pulse. The results processed in a microcontoler and transfered using a wifi network to an Android-based application which is displayed in graphic form. Based on the results that has been done, the prototype of this product has been able to detect the pulse. In the case of a person who is sleepy and asleep, it is found that the pulse has decreased from being awake. This product is expected to help the teachers to evaluate teaching methods in order to improve their student concentration at that time. Keywords: Concentration; Pulse sensor; Application; Learning method Share Link | Plain Format | Corresponding Author (kusyandi kusyandi)

34	Innovations in Engineering and Education	ABS-80
Technology of Tofu Pressing Tool with Time Delay Valve Pneumatic system Mila Kartika (a*), Milati Febriyani (a), Muhamad Ilyas Wijaya (a) a) Departement of Mechanical Engineering Education, Faculty of Technology and Vocational Education, Indonesian University of Education Jalan Dr. Setiabudhi 299, Bandung 40154, Indonesia *milakartika[at]upi.edu Abstract The survey results in several tofu industries in West Java, on average, still use manual tools. The process of making traditional tofu takes a long time to press, so it requires new technology, a tool that is easier to use and does not take a long time. Technology of tofu pressing tool with time delay valve pneumatic system is here to solve this problem. This tool is an automatic pressing device designed to replace the manual press. This time delay valve system also has the advantage of being able to work automatically by itself, thereby reducing work and time spent more efficiently. The purpose of this activity was to produce a tofu pressing device technology design with a time delay valve pneumatic system for optimization of the production process. The method used in this study was DND. The stages taken are identification of the problem, describing the objectives, product design and development, product testing and evaluation of trial results, communicating the test results. Data collection techniques are observation and documentation study. The design and testing process used Inventor and FluidSIM-P 4.0 software. This research has resulted in designs of pneumatic cylinders, pressure plates, tofu product storage containers, tool frames, and compressors. The test results show that the tofu pressing device with a time delay valve pneumatic system can increase the productivity of tofu making in the home tofu industry. Keywords: Pressing; Pneumatic; Simulation; Tofu; Time Delay Valve Share Link | Plain Format | Corresponding Author (Mila Kartika)

35	Innovations in Engineering and Education	ABS-82
PERAHU-KERUH (PERAHU LAMBUNG GANDA KENDALI JARAK JAUH) Autonomous Catamaran Boat as an Innovation Garbage Picker in Citarum River Said Abdurrahman Fauzi1a), Bahha Hamzah Haz Mustakim1b), Haekal Audi Fajrin2), Rian Arta Prahesa3), dan Haipan Salam1c) 1) Mechanical Engineering of education faculty technology of education and vocational Indonesia University Of Education 2) Electrical Engineering of Education faculty technology of education and vocational Indonesia University Of Education 3) Electrical Engineering faculty technology of education and vocational Indonesia University Of Education Abstract West Java is flowed by various rivers that are vital for peoples lives, one of which is the Citarum River. Since the decree of President instruction No. 15 of 2018 concerning the acceleration of pollution control and damage to the Citarum River Area, indicates that the government is serious to take care quality of water and environmental pollution in the Citarum watershed. The Citarum watershed has become an emergency area for water pollution, which comes from household waste, garbage, and industrial waste. Seeing the seriousness of the government to neutralize pollution in the Citarum River, thus, it is important to build devices that can collect wastes in the Citarum watershed. Besides, It is difficult to collect medium and small size trash from the Citarum River, so we need a device that is easy to operate and saves operating costs. Furthermore, the aim of this study is to design and fabricate a garbage collection device in the form of a double-hulled boat (Catamaran) that is controlled remotely using a radio control system to collect wastes in the river. This device is equipped with a conveyor system that will later pull light to medium trash into the collection tube in the boat. This device is 100 cm long, 80 cm wide using fiberglass material. For the boat drive system using a PG-45 type DC motor. Meanwhile, the conveyor drive system uses a Power Window Motor type DC motor. The voltage source uses a battery 12-24 volts 10 amperes. And for the control system using a 6 CH remote control range of 100-500 meters. Keywords: Citarum River, Waste, Catamaran, Conveyor Share Link | Plain Format | Corresponding Author (Bahha Hamzah Haz Mustakim)

36	Innovations in Engineering and Education	ABS-83
Project-based Learning Module Development of Wearable Computing for the Internet of Things (IoT) G N Amani *, Y Somantri **, D Wahyudin *** Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No.229, Isola, Kec. Sukasari, Kota Bandung, Jawa Barat 40154, Indonesia. *ghinanadifah[at]student.upi.edu *ysomantri[at]upi.edu **deewahyu[at]upi.edu Abstract This study describes the development of the learning module Wearable Computing for IoT conducted in class XI of Industrial Electronics Engineering at SMK Negeri 1 Cimahi whose attention is for the development of learning modules Project Based Learning (PjBL) with ADDIE models, responses of subject teachers and students to this module. The study involved subject teachers, four students for limited trials, and 32 students to provide responses to the module. The method for analyzing student questionnaire response data uses Mann Whitneys U Test and Kruskal-Wallis to compare student responses to several categories. The study produced a learning module Wearable Computing for IoT, a module whose contents were sufficiently detailed and reliable according to the subject teacher, and 94% (n = 32) students believed that this module could be used in class, and limited trials resulted in experiments that were in accordance with the objectives in the module. Therefore to maximize the use of learning modules Wearable Computing for IoT in the classroom students need to increase creativity in the development of each experiment and subject teachers can use the module as a source of learning while continuing to develop. Keywords: learning module, wearable computing, IoT, Project Based Learning (PjBL), Mann Whitney’s U Test, Industrial Electronics Engineering. Share Link | Plain Format | Corresponding Author (Ghina Nadifah Amani)

37	Innovations in Engineering and Education	ABS-87
Development of Integrated IoT Trainer (LRioT) for Practical-work in Electrical Engineering Education Program Amid Pandemy Teguh Pratama Nugraha*, Renaldi Pratama* Didin Wahyudin*, Yoyo Somantri* Pendidikan Teknik ElektroUniversitas Pendidikan Indonesia, Jl. Dr. Setiabudi No.229, Isola, Kec. Sukasari, Kota Bandung 40154, Indonesia *teguhprataman[at]student.upi.edu, *pratamar[at]student.upi.edu, deewahyu[at]upi.edu, ysomantri[at]upi.edu Abstract In this era, the development of microprocessor and microcontroller technology is developing very rapidly. This technology has also given birth to a new technology called the Internet of Things. The internet of things is an integrated integration that allows exchange and control between electronic devices via the internet. The COVID-19 pandemic There have been many changes in every segment of human life, including the education segment. The Indonesian state itself is taking action to close all educational institutions and shift learning to distance learning to limit the spread of the virus. However, distance learning cannot always be a learning solution, especially for practicum learning. Department of electrical engineering education, University of Pendidikan Indonesia, especially in the subject of practicum sensors and microprocessors, there is no learning media that can help students to do lab work remotely. On this basis, the researchers made an integrated IoT trainer design that can send and receive data to the IoT platform cloud service and can be developed into an IoT remote laboratory to meet the needs of remote practicum learning. The method used in this study is an experiment which includes design and testing. The design carried out is an integrated IoT trainer communication system, a gateway device, and an integrated IoT trainer. The trials were carried out by ensuring the data that was cancelled on the trainer was the same as the data accessed by the end-user on the IoT cloud platform. The trial results show that the end-user can access the same data as the existing data on the trainer. So it can be said that the trainer functions according to the plan. Keywords: Internet of Things, Learning Media, IoT Platform Share Link | Plain Format | Corresponding Author (Teguh Pratama Nugraha)

38	Innovations in Engineering and Education	ABS-88
COST MODELING OF CONCRETE PLATE IN SITU AND PRECAST (Case Study: Work of Floor Plates for Parking Development Project for Universitas Pendidikan Indonesia, Bandung City) Madaliatul Islahiyah, Ir. Rochany Natawidjana M.T, Istiqomah M.T S1 Civil Engineering Study Program, Faculty of Technology and Vocational Education, Indonesian Education University Abstract The choice of a method is very important in implementing a construction project because the right method of implementation can give the best results, especially in terms of cost. In the implementation of concrete work, there are several methods including in situ casting and precast. This research will compare the use of both methods in terms of cost and implementation of floor slabs and cost modeling, as a case study of the parking building construction project at the Indonesian Education University. The results of the study, the cost of concrete slab construction work using in situ the total price per m3 of Rp. 2,265,113.55 consisting of the total wage price in situ per m3 of Rp. 338,956.55, for the total price of materials in situ per m3 of Rp. 1,876,156.99, for the total price of equipment in situ per m3 of Rp. 50,000. The cost of concrete slab construction work using precast, the total price per m3 is Rp. 2,214,740.09 with a total price of precast wages per m3 of Rp. 187,615.28, for the total price of precast materials per m3 of Rp. 1,822,009.82, for the total price of precast equipment per m3 of Rp. 205,114.98. The difference in cost by using in situ concrete work and precast is the difference in price of Rp. 50,373.46. The percentage difference is the wages of 44.65% for materials 2.89% and 75.62% for tools. The percentage difference for the total price is 2.22%. Cost modeling of concrete slab work using the In Situ method is Y1 = Rp. 1,876,156 X + Rp. 50.000 X + 338,956 X modeling the cost of concrete slab work using the Precast method is Y2 = Rp. 1,822,009 X + Rp. 205,114 X + 187,615 X. Where X is the volume. This model is useful if there is a change in the volume of concrete slab work, the cost changes that will occur will be obtained immediately. Keywords: Floor plate, in situ concrete, precast half slab concrete, cost modeling. Share Link | Plain Format | Corresponding Author (Madaliatul Islahiyah)

39	Innovations in Engineering and Education	ABS-89
BASIC SCIENCE EDUCATION IN TECHNOLOGICAL PROCESSING OF INSTANT SWEET POTATO SOUP AS HEALTHY FOOD TO KEEP PRODUCTIVE DURING PANDEMIC Tati Setiawati1, Ade Juaedah1, Elly Lasmanawati1, Atat Siti Nurani1, Karpin1, Ai Mahmudatussa’adah1*, Muktiarni1 Universitas Pendidikan Indonesia Abstract During a pandemic, we need nutritious, healthy foods, like instant sweet potato soup (ISPS). The ISPS manufacturing process must pay attention to the quality of the materials, physicochemical properties, and the interaction of elements with equipment. This research explains the basis of science and technology in making ISPS. The ingredients used are Cilembu sweet potato, vegetables, and spices. In the first step, all the components must be thoroughly dried. Sweet potatoes contain polyphenols and phenolase enzymes, when they contact with oxygen, causing enzymatic browning. To prevent this oxidation can be done by deactivating the enzyme, or avoiding contact with oxygen. The type of slicer used determines the speed of browning. Iron material speeds up the browning process, while stainless steel is inner. To maintenance polyphenols when drying, freeze-drying techniques can be used, but they are expensive. Drying with a drum dryer can relatively maintain the antioxidant content. Sun drying is not hygienic. Drying with an oven or using a drying cabinet, the equipment is simple, but the damage of functional properties more decreases. After drying, all the ingredients were mill, heat is generated, which causes degradation of the phytochemical content in instant sweet potato. How much the decrease needs to study further. Keywords: Instant sweet potato soup, Science, Technology Share Link | Plain Format | Corresponding Author (Tati Setiawati)

40	Innovations in Engineering and Education	ABS-90
WEARABLE PERSONAL AIR MONITORING FOR SINUSITIS (i-Sinus) G N Amani *, T P Nugraha **, H Fauzi ***, D Kuswardhana**** Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No.229, Isola, Kec. Sukasari, Kota Bandung, Jawa Barat 40154, Indonesia. *ghinanadifah[at]student.upi.edu **teguhprataman[at]student.upi.edu ***hendrafauzi[at]student.upi.edu ****dandhi[at]upi.edu Abstract Sinusitis is an inflammatory disease of the sinus walls. Sinusitis sufferers will have difficulty if the surrounding air conditions are cold, causing nasal congestion, pain, and difficulty breathing. Based on the results of studies in America shows that 35% of Americans suffer from sinusitis. Meanwhile, a study of 57,128 samples in European countries with the help of a questionnaire showed that the prevalence of chronic sinusitis was 19.9% in the age range 15-75 years. Currently, there are not many tools that can help sufferers to prevent symptoms from appearing, sinusitis sufferers are usually given antibiotics and nasal spray suspension to relieve pain due to nasal obstruction, and treatment for acute sinusitis is antibiotic therapy while for those who are chronic antibiotic therapy is not enough. Therefore, to prevent sinusitis sufferers from becoming chronic sinusitis, it is necessary to take preventive measures. One of the preventive actions that can be taken is by using the i-Sinus device. The i-Sinus device is a smart wearable device in the form of a watch that monitors the users surrounding air conditions and monitors the users vital conditions such as heart rate. This device is embedded with an artificial intelligence algorithm that can provide notifications and suggestions to users when air conditions are not ideal. The test results show that when the air conditions are not ideal, this tool will notify the user. The doctor can monitor the condition of the surrounding air and its effect on the condition of the users vital organs. Thus, the combination of wearable technology and artificial intelligence can be developed, not only for sinusitis but also for monitoring human health. Keywords: Wearable, Artificial Intelligence, Monitoring, Sinusitis Share Link | Plain Format | Corresponding Author (Ghina Nadifah Amani)

41	Innovations in Engineering and Education	ABS-92
LabVIEW-based Learning Media for Instrumentation Control System and Automation Process Subject at SMK Negeri 1 Cimahi *Khaesa Ananda Putri, *Yoyo Somantri, *Wawan Purnama *Pendidikan Teknik Elektro, Universitas Pendidikan Indonesia Jl. Dr. Setiabudi No.229, Isola, Kec. Sukasari, Kota Bandung 4015, Indonesia *khaesaaputri.17[at]student.upi.edu, *ysomantri[at]upi.edu, *wawan_purnama[at]upi.edu Abstract In this era, automation technology and industrial control systems is being developed rapidly without being matched by adjustments in the field of education. The usage of electronic software can be a solution in the field of education for the learning process, therefore the educational curriculum can be in line with industry needs at a lower price. One of the electronics software that can be applied as control system and industrial automation is NI LabVIEW. At SMK Negeri 1 Cimahi, none of learning media is available for the subject of Instrumentation Control Systems and Automation Process, especially in the basic competencies of implementing the LabVIEW software in the instrumentation field. This present research aims at, (1) making BALISTIK as a learning media for the subject of Instrumentation Control Systems and Automation Process; (2) knowing the eligibility level of BALISTIK; and (3) knowing the response of the BALISTIK user. Performance is measured by functional testing activities while the level of feasibility is observed from the assessment results of material and media experts, limited test is carried out by means of two students using learning media directly and students working on evaluation questions, as much as 34 students provides user’s response by online which is seen from the user questionnaire results after the user sees the BALISTIK demonstration video along with the learning module that has been made. This quantitative study uses ADDIE as the research approach (Analyze, Design, Develop, Implement, and Evaluation). The results of this study indicated that BALISTIK has a good performance. From the limited test results of BALISTIK, it was concluded that BALISTIK was appropriate to be used as a learning media. Besides, based on the data analysing result, it occurred that user gave a positive response towards the learning media. Thus, BALISTIK was suitable as a learning media for the subject of Instrumentation Control Systems and Automation Process. Keywords: Learning Media; LabVIEW; BALISTIK; Instrumentation Control Systems and Automation Process Share Link | Plain Format | Corresponding Author (Khaesa Ananda Putri)

42	Innovations in Engineering and Education	ABS-93
PROCESSING TECHNOLOGY OF SWEET POTATO FLAKES PRODUCTION Ai Mahmudatussaadah1, Rijanti Maulani2, Rita Patriasih1, Ade Juwaedah1, Atat Siti Nurani1, Karpin1, Dini Maharani1 1Universitas Pendidikan Indonesia 2Institut Teknologi Bandung Abstract Sweet potato is a potential source of carbohydrates, containing flavonoids as antioxidants. Sweet potatoes perish quickly and decrease in their antioxidant levels during storage. The purpose of this study was to apply the processing technology of sweet potatoes into sweet potato flakes. The method used was experiment. Sweet potato flakes are dried of slurry sweet potato using a drum dryer. Sweet potato flakes have dry characteristics, with a higher antioxidant content than sweet potato flour. The process technology applied in the flakes sweet potato processing is a combination of high heat and steam pressure which rotates and heats the drum dryer. The optimal temperature of the drum dryer to dry sweet potato pulp quickly was above 120 oC. The drum rotation is 1 rpm. Keywords: Ipomoea batatas, Sweet Potato Flakes, Process Technology Share Link | Plain Format | Corresponding Author (Tati Setiawati)

43	Innovations in Engineering and Education	ABS-94
UPPER STRUCTURE ANALYSIS OF THE PROJECT COST (Case Study: Bekasi City Government Service Office (POLRES) Building Construction Project) Brama Putra Pratama, Istiqomah, S.T., M.T., Ir.Hj.Rochany Natawidjana, M.T. S1 Civil Engineering Study Program, Faculty of Technology and Vocational Education, Indonesian University of Education Abstract Multi-storey buildings are built to fulfill human necessity to resolve land limitations. Multi-storey buildings that are built must be safe with existing loads. Aside from the safety factor, the planning team must pay attention to the cost aspect in the planning process. Cost is one of the main factors that must be considered in a construction project. To get cost efficiency, optimization is needed at the planning stage. One of the jobs that contributed greatly to the high cost of the project was structural work. The structural work reviewed the upper structure work because it consists of beams, columns and plates. This research was conducted on the construction project of the Bekasi City Government Service Office (POLRES) with the type of structure used is reinforced concrete structures. The objectives of this study are 1) Planning the dimensions of the upper structure that occur using the minimum limit of the provisions of SNI 2847: 2013 2) Knowing the magnitude of changes that occur in the upper structural elements after re-analysis 3) Knowing the magnitude of changes in project costs after re-analysis of the upper structure. This study uses the ETABS program in structural modeling and calculating internal forces, while the reinforcement analysis uses the SpColumn and Microsoft Excel programs. Optimization of the beam and column dimensions that have been modeled has resulted in beam casting efficiency of 12.289% and column casting efficiency of 30.394%, beam formwork efficiency of 14.251% and column formwork efficiency of 16.999%, while beam reinforcement efficiency is 29.572% and column reinforcement efficiency of 20.979%. This optimization has ensured the safety aspects of the building. The cost of the upper structure work has resulted in an efficiency of 21.938% while the total cost of the project has resulted in an efficiency of 7.047%. Keywords: Optimal, Structure, Cost, Efficiency Share Link | Plain Format | Corresponding Author (Brama Putra Pratama)

44	Innovations in Engineering and Education	ABS-95
IMPLEMENTATION OF SAFETY PATROL ACTIVITIES IN CONSTRUCTION PROJECTS Dewi Yustiarini, Moch Fachri Asikin UPI Abstract Construction service activities are a sector that has a high risk of work accidents compared to other service activities. This is because construction service activities involve many things, including building materials, installations or equipment, labor, and the application of technology in large and complex quantities. The aspects of work accidents that occur are mostly the result of unsafe behavior and unsafe working conditions or unsafe conditions. Therefore, to minimize any possibility of accidents, safety patrol activities must be carried out. This research stage begins with conducting a literature study and determining the subject matter related to safety patrol activities at PT. Trimatra Jasa Prakasa. The data needed in this study were obtained from interviews, observation, and documentation data sources. The results of interviews and observations were analyzed using qualitative descriptive methods. The results of the analysis show that the implementation of the safety patrol activities of PT. Trimatra Jasa Prakasa in the arntz-geisse learning center development project phase 2 is by the legal basics governing employment, work accidents, and HSE, especially regarding safety patrol activities. Keywords: Safety Patrol, Project Construction Share Link | Plain Format | Corresponding Author (Dewi Yustiarini)

45	Innovations in Engineering and Education	ABS-96
Procurement and Supply Chain of Portland Cement in the West Bandung Regency DPRD Building Construction Project Dewi Yustiarini, Az-zahra Raudya R UPI Abstract In a construction project, the building material is an important component that must exist. At the planning stage, all material requirements for structural, architectural, mechanical, electrical, and plumbing must be calculated in accordance with the plans made. Portland cement is one of the most important building materials in a construction project. The process of procuring building materials to the project site has a fairly long series or can be called the supply chain. This study will discuss the supply chain of construction materials, namely Portland cement. The importance of a supply chain is that it can be one of the factors for the success of the project and also controlling the time in a construction project. When the downstream of a supply chain is the project site, when the material (Portland cement) arrives at the construction project site, storage methods must be adjusted according to applicable regulations. Keywords: Procurement, Supply Chain, Cement, Storage Share Link | Plain Format | Corresponding Author (Dewi Yustiarini)

46	Innovations in Engineering and Education	ABS-97
The Process of Procurement of Construction Services in the Construction of the West Bandung Regency DPRD Office Building Dewi Yustiarini, Nurmalita Sya’bani Rachmah UPI Abstract Procurement of Construction Services is the activity of obtaining construction services to construct, operate, maintain, dismantle, and rebuild an infrastructure building carried out by an institution or agency, both governmental and private. This procurement process, particularly in government-owned projects, is then regulated in-laws and regulations starting from identifying needs to signing contracts. As a result of the complex stages and the large number of resources involved, the procurement process is prone to fraud. Therefore, it is hoped that the current shift in procurement to an electronic system can overcome these problems because, with the introduction of an electronic system, information about the procurement mechanism will become more open. However, unfortunately, until now there have been no specific regulations governing the disclosure of public information on construction services. Keywords: Procurement, Construction service, Public Information Disclosure Share Link | Plain Format | Corresponding Author (Dewi Yustiarini)

47	Innovations in Engineering and Education	ABS-100
DAMPING MODEL POWER SYSTEM OSCILLATION 1. Daryanto; 2. Purwanto G; 3. Faris H. Makarim 1 dan 2 = Universitas Negeri Jakarta 3. School of Electrical Engineering and Informatics Bandung Institute of Technology Abstract Daryanto, Purwanto G. dan Faris H. Makarim Program Studi Pendidikan Teknik Elektro, Fakultas Teknik, Universitas Negeri Jakarta Todays electrical power system is characterized by the presence of resources and users located far apart and covering a large area, so that the delivery of electrical power to load centers is carried out through a transmission network with a limited capacity. Such operation will cause the steady state to be impaired or will result in poor attenuation of the electromechanical oscillations, and at worst the power system will fail. This study aims to investigate the effect of dynamic load parameters on the oscillation damping of the electric power system. The behavior of the electric power system after a disturbance at various values of certain dynamic load parameters is shown through a simulation using the Simulink application program from Matlab. The models developed in this study include dynamic load models and synchronous generator models. The dynamic load model is developed from the Hill model which is based on the load power response due to changes in voltage. The mathematical formula describing the interaction between voltage and load power is realized by the first level differential equation. Meanwhile, the electric power system model is based on the model developed by Demello, which is a single engine connected to an infinite bus. The synchronous engine in this model is obtained from the classical Park model to assume (1) a balanced condition, (2) the coil resistance and stator flux derivatives are neglected, (3) the saturation effect is negligible, (4) the transmission network is assumed to have zero resistance, and (5) local loads are assumed to depend only on real power. Based on these two models, an overall block diagram is made that illustrates the interaction between dynamic loads and the electric power system. The results showed that the addition of dynamic load can reduce the oscillations ∆δ and ∆Vt when there is a disturbance and a decrease in the reference voltage makes ∆δ rise while ∆Vt falls. The closer npt/nps is to 1, the closer the transition values ∆δ and ∆Vt are to the steady state. If npt/nps < 1, the curve ∆δ will oscillate at a value above the steady value and ∆Vt will oscillate at a value below the steady value. Meanwhile, if npt/nps > 1, the curve ∆δ will oscillate at a value below the steady value and ∆Vt will oscillate at a value above the steady value. The conclusion of this research is that the greater the value of nps, the greater the value of ∆δ and the smaller the value of ∆Vt and the greater the value of Tp, the transition of ∆δ and ∆Vt to a steady value will be longer. Keywords: damping, oscillation, dynamic load parameters, electric power system, synchronous generator. Share Link | Plain Format | Corresponding Author (Daryanto Daryanto)

48	Innovations in Engineering and Education	ABS-104
The Role of Research Support System for Study Completion: Students Perspective Didin Wahyudin, Aip Saripudin Universitas Pendidikan Indonesia Abstract Although the majority of students can complete lectures in the last semester, many students experience delays in completing their studies. The obstacle is when they do the process of research and thesis writing. After students finishing credits, they do not intensively carry out thesis work for a variety of reasons, so they did not take the priority to work on the thesis. Besides, the supervisor often loses the information of the students because they could not be monitored during the thesis work. To solving the problem, a research support system is needed. This research aims to develop and implement rSys. rSys is a web-based support system to assist all elements involved in the completion of studies. rSys is designed to record, to log, and to track research progress. With these features, all process of research including research proposal submission, research report, and academic writing can be reviewed online; hence thesis writing progress can be comprehensively managed. This paper is to describe the survey to measure students perspective of using rSys to assist study completion. The survey result discover that the majority of student agreed that rSys is benefits for study completion on time. Keywords: study completion, research support system, research progress Share Link | Plain Format | Corresponding Author (Didin Wahyudin)

49	Innovations in Engineering and Education	ABS-106
REALTIME MONITORING OF PEDDLERS LOCATIONS USING APPLICATION AND GPS ON THE SMARTPHONE DR Amrulloh, R Pratama, DE Seviliana, AHS Budi Universitas Pendidikan Indonesia (UPI) Abstract Peddlers is one of the independent traders which is commonly found in Indonesia. Usually, a peddlers not associated with economic entities or business groups. Because it is independent, the activities carried out by a peddlers from production, managerial until marketing sections are carried out independently, which causes the trading activities by a peddlers are not going to be optimal. To optimize the performance of a peddlers, it is necessary to establish a business group system with the function of accommodating and assist a peddlers in terms of product marketing which also includes digital technology-based financial managerial. A form of development is to create an android-based mobile merchant monitoring application using a smartphone.devices. Android-based smartphone get used because most people own these devices, capability for using GPS, and an integrated android-based application services provider such as Google Play. The method used for designing this application is the Waterfall Systems Development Life Cycle (SDLC) with a sequence of activities in the form of analysis needed, literature study, application planning, modeling and design, algorithm construction, testing and program analysis. Applications that have been successfully developed have a variety of features such as displaying a real-time the peddlers location, directions for the peddlers to the location of customers who already ordered from the application, chatting features for a peddlers and customers, a list of product that can be ordered by customers, and selection of payment systems by customers. Keywords: Kata Kunci: Peddlers, Android, Application, GPS, Real Time, Transaction Share Link | Plain Format | Corresponding Author (Dimas Ramadhan Amrulloh)

50	Innovations in Engineering and Education	ABS-108
THE CONCEPT OF LORA-BASED RIVER MONITORING SYSTEM BASED ON WATER QUALITY INDEX Najmi Najib Nasrulloh Kurniadi(a), Ridwan Amshari(a), Alda Fahmia Sofha(b), Agus Heri Setya Budi(a) a)Departemen Pendidikan Teknik Elektro, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudhi No. 207, Bandung 40154, Indonesia *najminajibnk[at]student.upi.edu b)Departemen Pendidikan Kimia, Universitas Pendikan Indonesia, Jl. Dr. Setiabudhi No. 207, Bandung 40154, Indonesia Abstract At present, rivers as one of the sources of raw water are misused as a place to dispose of both domestic and industrial waste. The Citarum River is an example of a river contaminated with waste and is a portrait of waste pollution management in Indonesia. The government through Presidential Decree No. 15/2018 implemented the Citarum Harum program to restore the river ecosystem. The Citarum Harum program which involved TNI members had a positive impact in the process of improving watersheds. However, to maintain river conditions, there is no information system that can provide real-time information about river water quality. Responding to this problem, researchers propose to create a river system by utilizing Internet of Things (IoT) technology. Parameters that can be monitored are based on the official quality standards of the National Sanitation Foundation Standard - Water Quality Index (NSF-WQI standard). These parameters are temperature, TSS, DO, BOD, Ph, NO2, NO3, and total coli. The research method used is a planned experimental method, which begins with literature studies, needs analysis, to building architectural systems. The system created can perform based on parameters that have come before and can calculate the value of air quality (WQI) automatically. The system can also classify air conditions with safe, warning and hazard categories and can send automatic notifications when changes in the value of the air quality index are outside the provisions. Keywords: Water Monitoring System, Water Quality Index, IoT Share Link | Plain Format | Corresponding Author (Najmi Najib Nasrulloh Kurniadi)

51	Innovations in Engineering and Education	ABS-110
Virtual Reality Tourism: Digital Application As A Media Education Of Tourist in the Covid-19 Era D P Sari 1, NIK Dewi 2, S. Fuada 3 ,W Nuriyah 4, Robby Akbar 5 Universitas Pendidikan Indonesia Abstract During the pandemic, Covid-19 began to plague Indonesia in mid-March, impacting on the limited space for human movement with the implementation of Large-Scale Social Restrictions. The implementation of work from home causes the citizens to experience burnout after more than 6 (six) months at home. Even though the “New Normal” has been implemented, the citizens desire to have a vacation and travel is certainly very strong. However, with limited space at this time, holidays have become a dream for citizens. In addition, tourist objects in several areas have not been opened, including several tourist objects in the city of Purwakarta which are still closed. Based on these conditions, it is important to develop "Virtual Reality Tourism" as an educational strategy and knowledge of tourist destinations for tourists, including people who are still staying at home or working from home until the end of the year. This research was conducted with several approaches, including data collection techniques, observations, field surveys and a description of the analysis model as product development data. The results of the "Virtual Reality Tourisme" product are expected to be able to overcome the problems that occur, as a supporting tool for tourism education while staying at home. Keywords: Covid-19, Virtual reality, tourism, education Share Link | Plain Format | Corresponding Author (Dian Permata Sari)

52	Innovations in Engineering and Education	ABS-111
Experimental Comparison of Co-gasification Charateristic of Rice Husk Pellet and Rice Husk Mixtures : Pyrolysis Zone Optimization Apri Wiyono, Ega Taqwali Berman, Ridwan AM Noor, Asep Setiadi Husen, Mutaufiq, Haikal, Rany Anggrainy* Universitas Pendidikan Indonesia Abstract Raise of energy demand, in line with the rate of population growth is always followed by waste volume increasing. Where the largest percentage comes from organic waste, it is potentially utilized as raw material of biomass mixture for emission reduction efforts on fuel conversion from waste energy. The main objective of this paper is to study the characteristic of co-gasification, especially gasification temperature, lower heating value and gas emission, on the performance of the biomass gasification process in a downdraft fixed bed gasifier. In this study, organic waste used twigs of rice husks in the pelletization as raw materials on combustion technology Downdraft Gassifier. Methods were carried out by co-gasification techniques between rice husk, mixture and RH (rice husk) pellet. Where syngas testing is done direct measurement on burner with TCD gas chromatography. The flaming pyrolisis temperature in the reactor is 700 C - 750 C and the temperature in the combustion zone is 900 C - 1100 C. The result of the syntetic gas testing obtained the highest lower heating value in rice husk pellet 100% composition at 2.68 MJ/Nm3. The lower the calorific value of the raw material in the fuel composition, the smaller the LHV syngas output, where an increase in RH pellets will increase the LHV syngas value. This resulted in visually low tar content and low ash particles in all compositions of about 30% of the initial mass of each composition according to the experimental literature, with the lowest ash in the 100% rice husk pellet composition predicting yield. Keywords: pelletization, co-gasification, downdraft gasifier, syntetic gas, biomass Share Link | Plain Format | Corresponding Author (Apri Wiyono)

53	Innovations in Engineering and Education	ABS-112
Non-Destructive Classification of Thai Cha-Nee Durian Maturity with Near-Field Reflection Mode Measurement using a 3.4-GHz Microwave Sensor Pakornkiat Sawetmethikul (a*), Kittiwan Nimkerdphol (b) a) Department of Industrial Education, Faculty of Technical Education, Rajamangala University of Technology Thanyaburi, Thailand *pkkt[at]rmutt.ac.th b) Department of Computer Engineering, Faculty of Engineering, Rajamangala University of Technology Thanyaburi, Thailand kittiwann.n[at]en.rmutt.ac.th Abstract This paper proposes an investigation of Thai Cha-Nee durian maturity with reflection mode measurement using a simple microwave sensor based planar structure. The microwave sensor was a “Pencil-like shaped probe”, which were made of a FR4 laminate; dielectric constant = 4.4, dissipation factor = 0.018, substrate thickness = 1.6 mm, and copper thickness = 0.035 mm. The resonant frequency was designed at 3.4 GHz to avoid interferences from wireless communication channels. The distance between sensor and durian was recommended at less than 10 mm, due to near-field region. Referring to experimental results, durian maturity was predicted by reflection coefficient (R); R (immature) is more than 0.53, R (semi-mature) is 0.28 - 0.43, R (mature) is less than 0.19, which achieved prediction accuracy at 91.55 – 99.0 %. Keywords: durian maturity, microwave sensor, fruit maturity measurement, reflection mode measurement Share Link | Plain Format | Corresponding Author (Pakornkiat Sawetmethikul)

54	Innovations in Engineering and Education	ABS-126
Development of Sound Insulation Panel from Oil Palm Fiber Kittichat Homaswin, Natawut Chaiwino Rajamangala University of Technology Thanyaburi Abstract The purpose of this research is to develop sound insulation panel from oil palm fiber (OPF). The study compared panels made from OPF with other acoustic panels in the market. This raw material is a byproduct from agricultural harvest. Hot press technique with the pressure of 400 kg/m3 was used to create the panel with the thickness of 20 mm. The temperature during the compression was 150°C, and the force used for pressing the panels for 8 minutes ranged between 25-30 kg/m2 . The amount of pMDI applied as a binding agent was 5% by weight of the panel. Sound absorption tests were carried out in a test box with sound level meters. The results of the tests showed that the soundabsorbing property of the developed OPF panels with holed surface is greater than that of the traditional OPF panels and acoustic boards. It was found that different sizes and patterns of holes have an effect on sound-absorbing capacity. The developed OPF panels showed a good sound-absorbing capability in medium-to-high frequency (500 Hz – 2000 Hz). The best sound insulation panel made from OPF is the panel with a 5% by weight of pMDI and has a density of 400 kg/m3 . The physical and mechanical properties of the panels comply with the standard of strength and mechanical properties of soft boards (Library of Congress Cataloging – In – Publication Data). Keywords: oil palm fiber; sound insulation; hot pressing process Share Link | Plain Format | Corresponding Author (Pakorn Sawet)

55	Innovations in Engineering and Education	ABS-132
Precast Concrete Columns Strengthened with CFRP and GFRP Laminates under Eccentric Load Natawut Chaiwino, Jaturawit Sirimaha Rajamangala University of Technology Thanyaburi Abstract —This paper presents the experimental results of precast concrete columns strengthened and repaired with externally bonded carbon fiber reinforced polymer (CFRP) and grass fiber reinforced polymer (GFRP) laminates. The aims of the study were to investigate the structural behaviors of a precast concrete column with a notch and the efficiency of CFRP and GFRP laminates in strengthening and repairing the columns subjected to eccentric load. A total of 15 precast concrete columns with notches were tested up to failure. Load was applied on a column notch causing eccentric load on a column. The specimens were equally divided into five groups based on the types of fiber reinforced polymers and damage conditions of columns (undamaged or partially damaged): columns with nonstrengthening/repairing; columns with CFRP strengthening; columns with GFRP strengthening; columns with CFRP repair; columns with GFRP repair. The results were compared and discussed in terms of load carrying capacity, lateral deflection, and mode of failure. It was concluded that the application of CFRP and GFRP laminates in strengthening and repairing precast concrete columns improved the load carrying capacities up to 27.6%. Keywords: precast column; eccentric load; CFRP laminate; GFRP laminate Share Link | Plain Format | Corresponding Author (pakorn s.)

56	Innovations in Engineering and Education	ABS-133
The Digitalization TVET Management Danny Meirawan, Budhi A. Salira, Heni Mulyani Universitas Pendidikan Indonesia Abstract Digitalization has been described as one of the most important developments that transform society and industry. Digitalization creates organizational shifts because of the implementation of digital technology in the enterprise or operating environment. This paper discusses digitalization from the point of view of multiple case studies conducted to gather data from several businesses, and a literature study to supplement the data. This paper describes the digital transformation framework model, derived from the synthesis of industrial cases, explaining a starting point for a systematic approach to digital transformation. The model is designed to help CoE TVET management handle the changes associated with digitalization systematically. The model consists of four key phases, beginning with positioning the organization in the digitalization and setting targets for the organization and then evaluating the current state of the business with regard to the digitalization objectives. First, the organization establishes and develops a plan for attaining the targets. These steps are iterative, and several times can be repeated. Though company circumstances differ, these steps can systematically aid approach digitalisation and take the required steps to reap the benefits. Keywords: CcE, TVET, digitalization, management Share Link | Plain Format | Corresponding Author (Danny Meirawan)

57	Pedagogical Innovations in TVET	ABS-14
Vocational Education in the Industrial Age 4.0: Challenges and Opportunities Aam Hamdani, Aim Abdulkarim. Diah Cahyani P, Eki Nugraha Universitas Pendidikan Indonesia Abstract This echo of the Industrial Revolution 4.0 had predicted to peak since the 2000s when technology and information innovation experienced rapid development. Industry 4.0 has a tremendous and broad impact, especially in the employment sector, where robots and machines will eliminate many jobs in the world. Industry 4.0, of course, must have been anticipated by vocational education that can answer these challenges. The research aimed to get the formulation of the revitalization of vocational education in Indonesia in order to form the skills competencies needed in the era of the industrial revolution 4.0. This research uses participatory qualitative research methods, and data were collecting through literature studies, interviews, and discussions (FGD). The results of the study show that vocational education is a program to support the realization of smart education through increasing and equalizing the quality of education, expanding access, and the relevance of utilizing technology in realizing skill competencies in the industrial era 4.0. The revitalization of vocational education aims to produce students who have four competencies: critical thinking, collaboration, communication, and creativity. Keywords: industrial revolution 4.0, vocational education, critical thinking, collaboration, communication, creativity. Share Link | Plain Format | Corresponding Author (Aam Hamdani)

58	Pedagogical Innovations in TVET	ABS-20
Digital Pedagogy as a Learning Approach For Industry 4.0 Muktiarni, Nia Lestari, Asep Maosul, Sri Rahayu, Asri Wibawa Sakti Universitas Pendidikan Indonesia Abstract This study synthesizes the finding of a study on digital pedagogy to face the industrial era 4.0. The journals were studied from 2015 to 2020. The of the industrial era 4.0 can be seen from the integration of technology in various aspects including education. Some research results indicate a gap between teachers and students in the use of technology in education. Entering industrial era 4.0 there are several challenges and opportunities for industrial era 4.0, the development of industrial era 4.0 is marked by the development of big data and artificial intelligence. The skills needed in this era, or it is called big data and artificial intelligence, include advanced analytics, internet of things, and digital security.Therefore, it has become an obligation in integrating technology. Learning methods that are more effective in integrating technology can be doneby mastering digital pedagogy. Digital pedagogy is a method used to guide or teach children with technology. The integration of digital pedagogy in learning not only focused on conventional teaching where students listen to the teachers explanation. In fact, the use of technology in the learning process is limited to the use of media such as power points, the internet, or digital modules. The use of technology is mostly used for the transfer of knowledge, not values. The teachers as a transfer of values must have the knowledge and skills in using technology in learning process. This paper aims to conceptually examine digital pedagogy as an alternative solution in learning in the industrial era 4.0. From several studies that have been carried out by digital pedagogy in education as one of the dominant solutions in facing the 4.0 industrial revolution, this is in line with a new pattern found in industry 4.0, namely disruptive technology Keywords: Digital Pedagogy, learning method, industrial era 4.0 Share Link | Plain Format | Corresponding Author (Muktiarni Muktiarni)

59	Pedagogical Innovations in TVET	ABS-26
Development of Written Test Instruments to Measure Basic Skills of STEAM (Science, Technology, Engineering, Arts, and Mathematics) Junior High School Students on Science Concept Nada Amira (a*), Ana Ratna Wulan (b) a) Prodi Pendidikan IPA, Sekolah Pascasarjana, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudhi No. 229, Bandung 40154, Indonesia b) Departemen Pendidikan Biologi, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudhi No. 229, Bandung 40154, Indonesia Abstract Constructing a high quality of test items needs a considerable time and efforts in developing and examining each test item. Literature suggested this limitation can be remedied with a large collection of test items along with their measurement characteristics which termed as item bank. However, a well-developed item bank is formed by a set of high quality of test items using a rigorous development and validation procedures. In achieving this, this study attempts to describe the development of written test instruments to measure basic skills of STEAM (Science, Technology, Engineering, Arts and Mathematics) in science concept. Accurate measure of students’ achievement is very crucial for curriculum and instruction planning and educational-related program evaluation. Conversely, test that underestimate students’ actual knowledge and skills cannot serve these important purposes. Therefore, the written test instruments to measure basic cognitive skills of STEAM is urgently needed as it usually only assess the product or the project which being learned. Research data was analyzed using RASCH Model Analysis with Ministep program which investigate the Wright response map, difficulty level, reliability and discrimination index. The sample consisted of 30 students answering 3 science concept sets of 30 test items each; Energy in Life System (reliability value = 0.83), Pressure in Substance and Plants (reliability value = 0.88) and Volcanoes and Earthquake (reliability value = 0.89). Moreover, these reliability value of the test items are considered as a very good quality, with 75 out of 90 items were stored in the item bank and empirically fulfilled the quality as suggested by the Rasch measurement model. Keywords: Performance assessment; development of written test instruments; test items; Rasch Model Analysis; STEAM basic skills; science concept Share Link | Plain Format | Corresponding Author (Nada Amira)

60	Pedagogical Innovations in TVET	ABS-34
The Development of Self and Peer Assessment Instruments for Meat Processing Practicum Gea Azoya Apriarani, Mustika Nuramalia Handayani, Dewi Nur Azizah Faculty of Technology and Vocational Education, Indonesian Education University Bandung, Indonesia Abstract Discipline is the spearhead of the growth of good characters, which can grow along with practical learning or practicum. The appropriate assessment for practicum activities is performance assessment. Teacher assessment techniques are very commonly used to assess student performance in carrying out practicum. However, this valuation technique becomes less valid since there is an unbalanced amount between the assessor and the assessed. Another assessment technique proposed by experts to be the solution, namely the combination of self and peer assessment. This study conducted to know the validity of the developed self and peer assessment instrument for meat processing practicum and to know the instrument results in assessing students discipline on meat processing practicum. Method used in this study is the method of development and validation with planning, development, validity testing, and testing as the stages. This study conducted at a meat processing practicum with 48 students as participants and 5 observers. All of the data used in this study, in the form of self assessment scores, peer assessment, and observer assessment, were analyzed by looking at their similarities. The developed instrument has been declared valid by the experts. The results of the use indicate that there are 17 students with very good discipline, 8 students with good discipline, and 6 students with enough discipline. The validity is not only adapting the literature related to this instrument, but has been declared valid by experts (expert judgement), and can be used based on the results of trial analysis. The more similarities of scores obtained indicate that the developed instrument can not only be used but also good enough for assessing student discipline in meat processing practicum. Keywords: Peer Assessment, Practicum, Self Assessment Share Link | Plain Format | Corresponding Author (Gea Azoya Apriarani)

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