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151	Engineering	ABS-73
A Review and Bibliometric Analysis on Essential Oil Nanoencapsulation Wahyudi Budi Sediawan1, Indah Hartati2*, Hary Sulistyo1, Muhammad Mufti Azis1 1Chemical Engineering Department, Faculty of Engineering, Gadjah Mada University 2Chemical Engineering Department, Faculty of Engineering, Wahid Hasyim University Abstract The potential applications of essential oils are limited by their natures as they are oxidized easily by light, heat, and other environmental factors. Essential oil impediments and their short shelf life promote the development and application of essential oil nanoencapsulation. Nanoencapsualtion techniques employed in formulation of essential oil nanocapsules are diverse. Therefore this paper present the review of nanoencapsulation technology applied on essential oil as well as the analysis of the bibliometric on term of essential oil nanoencapsulation technology. The review was conducted by investigate and study the literatures available on nanotechnology applied on essential oil. The bibliometric analysis was conducted by using Vos Viewer program in order to analyze the journals and articles published in scopus database. The search was performed on keywords of essential oil, nanoencapsulation, and nanoencapsulation specific techniques. Based on the direction of the size of the nanomaterial formulation, nanoencapsulation is classified into top down and bottom up technique. Nanoemulsion and liposomal entrapment are two top down methods that gain wide interest from researchers, while ionic gelation is the bottom up methods widely applied in essential oil nanoencapsulation. The bibiometric analysis of the publication on essential oil nanoencapsulation based on nanoemulsion and ionic gelation methods show that the trend of the essential oil nanoencapsulation performed via top down and bottom up techniques are mostly intended to investigate the pharmacological activities of the bioactive compounds of the essential oil as well as investigated for their application as drugs release system. Keywords: essential oil, nanotechnology, carrier material, research trend, bibliometric analysis Share Link | Plain Format | Corresponding Author (Indah Hartati)

152	Engineering	ABS-74
Design of The Real Time Image Capture Feature for Vegetable Production in Sharia Based E-Commerce Sutadi Triputra, Ririn Suharsih, Utan Sahiro Ritonga, Alghif Aruni Nur Rukman, Eni Kusumawati Universitas Muhammadiyah Bandung Jalan Soekarno Hatta 752, Bandung 40614, Indonesia Abstract In 2021 the consumer complaint service at the Ministry of Trade recorded that 95.3% or 8,949 consumers made complaints in the e-commerce sector. This condition increased 10 times compared to the previous year. The results of a survey conducted by shopback found that 62.9% of consumers felt that the items purchased did not match the products in the photos. The potential for gharar in online buying and selling is quite large. Gharar is a business transaction that contains ambiguity for the parties, both in terms of quantity, physicality, quality, delivery time, even the object of the transaction may still be speculative. Conditions like this are very risky for fraud to occur and there are parties who are harmed, including vegetable e-commerce. To address the needs of users in uncertain times that violate sharia principles, a possible solution is to add a real-time image capture feature of the condition of vegetables which can make buying and selling transactions more transparent and provide benefits for both parties. By using the ESP32-Cam module which sends photos to the e-commerce application server per hour, it is expected that users can see the product to be purchased, both the location and condition of the vegetables. This study uses a literature study method and observations of e-commerce applications that are currently being developed by researchers. The results of this study are in the form of application architecture and mockups so that users can maximize the e-commerce application. Keywords: E-commerce- Real time image- Arduino- ESP32Cam- Sharia economy Share Link | Plain Format | Corresponding Author (Ririn Suharsih)

153	Engineering	ABS-330
The Direction of the City Gas as Clean Energy in Indonesia with the Work Force as the Moderator Andry Prima1, Havidh Pramadika1, Wiwik Dahani2, Astri Rinanti3, Prana Ugiana Gio4 1Petroleum Engineering, The Faculty of Earth Technology and Energy, Universitas Trisakti, 2 Mining Engineering, The Faculty of Earth Technology and Energy, Universitas Trisakti, 3Environmental Engineering, the Faculty of Landscape Architecture and Environmental Technology, Universitas Trisakti, 4 Mathematics, FMIPA, Universitas Sumatera Utara Abstract The city gas as on the clean energy, has been increasingly sold to the consumers. Despite its growth, the trend could possibly encounter the decrease in consumer demand. This could be true if variables affecting its growth are mismanaged. Therefore, controlling the variables are of paramount important. The aim is to provide a brighter picture of several independent variables that have made significant contribution to the increasingly distribution growth of natural gas as the clean energy in Indonesia. The research philosophy used commonly known as the quasi qualitative and the tools used to model the structured equation is the partially least square. The output should provide the reader the important message as to the effect of the work forces to the growth of the city gas as clean energy. The moderating variables should be managed to reach certain desired outcome. This work can be useful in the field of marketing and trading of the city gas as clean energy based on the available data to the authorities, academia and other stakeholders in order to optimize its growth. Keywords: city gas, quasi qualitative, structured equation method Share Link | Plain Format | Corresponding Author (Andry Prima)

154	Engineering	ABS-331
Sentiment Analysis of the Maps Application uses the SVM method and Predicts the Growth of Maps Application Users Ilham Fariz Asya1,a*) , Tukino 2,b*) , Baenil Huda3,c), Aprilia Putri Nardilasari4,d), Risa Nur Islami5,e), Muhammad Khaerudin 6,f) Universitas Buana Perjuangan Karawang Abstract Sentiment analysis is a users assessment of a product or service according to user knowledge. The Maps application (google Maps, MAPs.ME and Waze) each offer different types of services to attract users. The types of services that are easy to access, valid information, polite driver attitudes and attractive promos offered at any time on the Maps application have an impact on users of the maps application to use services on an ongoing basis. The Maps application as a service requires user opinion or user judgment to become an interesting data bank to observe using the sentiment analysis method and Support Vector Machine. Knowing the types of services that suit the needs of users of the Maps application Data is taken from the Twitter database for the types of applications Google Maps, MAPs.ME and Waze. Data were analyzed using sentiment analysis with the Support Vector Machine method, rapidminer. The map application service assessment model yielded three ratings for map application providers, namely Google Maps with 89.73%, Maps.me with 86.40% and Waze with 79.47% which indicated by the number of users increasing every year. Thus Maps users can choose a maps application according to the quality of service and service rating offered by the map application provider, while the maps application provider can take advantage of the results of sentiment analysis to make service improvements Keywords: Sentiment Analysis, SVM, Maps, Growth Share Link | Plain Format | Corresponding Author (tukino tukino)

155	Engineering	ABS-332
Application of Artificial Neural Networks for Predicting Relative Permeability in Talang Akar Formation in Field X Muhammad Taufiq Fathaddin1*, Alvita Kumala Sari1, Daddy Sutansyah1, Baiq Maulinda Ulfah2, Wisup Bae3, Pri Agung Rakhmanto1, Sonny Irawan4 1) Universitas Trisakti, Jakarta, Indonesia 2) Sekolah Tinggi Teknologi Minyak dan Gas Balikpapan, Balikpapan, Indonesia 3) Energy and Mineral Resource Engineering Department, Sejong University, Republic of Korea 4) Nazarbayev University, Nur Sultan, Kazakhstan Abstract Relative permeability is an important parameter for estimating multi-phase fluid flow in porous rocks. Relative permeability is a complex physical property that is influenced by the behavior and interactions between the fluid and rock phases. Measurement of the relative permeability of cores in the laboratory can be carried out using steady-state or non-steady-state techniques. Permeability measurement is relatively difficult and time consuming. Because of the difficulty in measurement, empirical models are often used to estimate relative permeability or extrapolate to limited laboratory data. Artificial neural network (ANN) is a method that can be used to obtain complex correlations of parameters that influence each other. In this study, ANN is used to predict the relative permeability of water and oil. The proposed model evaluates the relative permeability of a phase as a function of porosity, rock absolute permeability, depth, permeability of other phases and water saturation. A total of 159 relative permeability data from field X were used for the training and testing processes. Based on the comparison between measured and calculated data, the correlation coefficients for relative permeability to oil and water using ANN method are 0.77 and 0.94 respectively. While those using regression analysis are 0.88 and 0.73 respectively. Keywords: Artificial Neural Network, Relative Permeability, Oil, Water, Regression Analysis Share Link | Plain Format | Corresponding Author (Muhammad Taufiq Fathaddin)

156	Engineering	ABS-78
From Waste to Energy: Characteristics of Bio-Briquettes Made from Waste Cassava Peel, Water Hyacinth, and Sawdust Sabarudin Akhmad (1), Anis Arendra (2*), Mualim Mualim (1) and Rachmad Hidayat (1) 1) Department of Industrial Engineering, University of Trunojoyo Madura, Indonesia 2) Department of Mechanical Engineering, University of Trunojoyo Madura, Indonesia *) anis.arendra[at]trunojoyo.ac.id Abstract Agricultural waste biomass direct burning to generate heat in industrial applications is inefficient. In addition, the difficulty in shipping and storage is due to its large volume and non-uniform shape. One approach to overcome this problem is by compacting the biomass to increase density, improve calorific value, and save a better combustion rate. In this study, the screw extruder machine was designed to compress, heat, and extrude bio-briquettes to form a hollow hexagon cross-section with an inscribed circle diameter of 52mm from biomass waste. The water hyacinth and cassava peel biomass were each dried and chopped into small particles before being mixed with sawdust. Cassava peel flakes also act as a binder in this mixture. We investigated the effect of biomass composition and extruder heating temperature on the calorific heating value and burning rate of bio-briquettes. We complete the experiments at three temperature levels and three levels of biomass composition. The results of the study found that there was no significant effect of the heating temperature factor on the calorific value and the rate of combustion of briquettes. While the composition of biomass impact significantly on the calorific value and burning rate of bio-briquettes. The calorific value reached 19.16 MJ/kg in the 50% sawdust, 30% water hyacinth, and 20% cassava peel bio-briquettes composition with a burning rate of 1.49 g/min. Water hyacinth and cassava peel waste recovery as an energy source not only turns waste into valuable resources but again becomes a solution to the problem of water hyacinth pest invasion and even provides economic and ecological benefits. Keywords: Bio-Briquettes- Waste Cassava Peel- Water Hyacinth- Sawdust- Screw Extruder Share Link | Plain Format | Corresponding Author (Anis Arendra)

157	Engineering	ABS-79
3D Object Detection using Cost-Effective Method 1Iffah Syafiqah Abdul Ghani, 1,*Wahyu Caesarendra, 1Juliana Zaini, 2Nur Uddin 1Faculty of Integrated Technologies, Universiti Brunei Darussalam, Brunei Darussalam 2Department of Informatics, Universitas Pembangunan Jaya, Tangerang Selatan, Indonesia Abstract RADAR is a detection system that utilizes radio waves for the detection and location of an object. The application of Radar system is used in the military as well as in commercial use in the field of navigation, positioning, object identification, mapping, or tracking. In this paper, a resourceful cost-efficient system that measures the location and height of the object detected is designed by using basic components to reduce power consumption and aims to use Ultrasonic via an Arduino-based radar system. This is a preliminary study to design an object detection and tracking system for a waste plastic bottle collector robot. This system is controlled through an Arduino UNO board where it is to control the ultrasonic sensor and interfaces the sensor and display device. The ultrasonic sensor is attached to two servo motors: (1) the first servo motor rotates about 180 degrees and gives a visual graphical representation, and it also gives the angle or position of the object and distance of the object, (2) the second servo motor work once the object is detected, it will rotate up and down to measure the height of the detected object. The prototype is able to detect the object and measure the distance as well as the height of the object with a cost-efficient method. Object detection includes the distance and the height. Keywords: Arduino UNO, object detection Share Link | Plain Format | Corresponding Author (Wahyu Caesarendra)

158	Engineering	ABS-80
Sentiment Analysis of Covid-19 Based on Lexicon Weight and Machine Learning Algorithm (Case Study: Brunei Darussalam) 1Usman Ependi, 2Adi Wibowo, 3Darius Antoni, 4,*Wahyu Caesarendra 1Informatics Department, Faculty of Computer Science, Universitas Bina Darma, Palembang Indonesia 2Informatics Department, Faculty of Science and Mathematics, Universitas Diponegoro, Semarang, Indonesia 3Information Systems Department, Faculty of Computer Science, Universitas Indo Global Mandiri, Palembang, Indonesia, 43Information Systems Department, Faculty of Computer Science, Universiti Brunei Darussalam, Bandar Seri Begawan, Brunei Darussalam Abstract Crisis management of Covid-19 is closely related to how government provides policy measures and monitors the health conditions of residents and others. Residents will provide feedback (opinions) for any services provided by the government. The main issue in this area is understanding residents^ opinions to become a source of information for sentiment in public policy. This study aims to analyze sentiment on crisis management of covid-19. Lexicon weight and machine learning classifiers (random forest, k-nearest neighbors, naive bayes, and decision tree). The data used in this study comes from resident opinions on the BruHealth application, which is part of Brunei Darussalam Government Services. Based on the experimental results, Sentiment Crisis management of Covid-19 is positive. Lexicon weight is used as a basis for data labeling. Classification results using random forest, k-nearest neighbors, naive bayes, and decision tree get a significant accuracy of 83,8%, 68,6%, 62,7%, and 85,5%, respectively. Keywords: sentiment analysis, covid-19, lexicon, machine learning Share Link | Plain Format | Corresponding Author (Wahyu Caesarendra)

159	Engineering	ABS-83
Effect of transport road slope on fuel consumption of coal mine transport truck Dessy Lestari Saptarini, Rahmat Hidayatullah, Teguh Suprianto, Abdi Maruli Politeknik Negeri Banjarmasin Abstract Fuel is a major component of mining operational costs. One of the factors that affect fuel consumption is the condition of mine road conditions. This research was conducted in a coal mine in South Kalimantan to determine the effect of slope and hauling distance on the rate of fuel consumption. The research method used by researchers is a quantitative research method. From the results of the analysis, the total power required for the conveyance to overcome the slope of the road with a distance of 1.472 m is 6,477 MW and for one trip it requires 19.25 liters of fuel. Based on the results of calculations regarding the relationship between road slope and hauling distance to the speed of fuel consumption, it can be concluded that when in free conditions, if there is an addition of 1% road slope, fuel consumption will increase by 4,820 liters. Whereas in unloaded conditions, if there is an addition of 1% road slope, fuel consumption will increase by 2,071 liters. Keywords: Coal mining, transport, fuel, road slope Share Link | Plain Format | Corresponding Author (Teguh Suprianto)

160	Engineering	ABS-339
Implementation of the Project Based Learning Model at Politeknik Negeri Medane Just Try to Submit This Sample Abstract Roslina, Ismael, Andam L, Dina A S, Hasnah J N, Bayu A, Abiyyu S, Dame U S Please Just Try to Submit This Sample Abstract You Can Edit It Again Later Abstract Every students have their own comprehension towards experience gained from their daily life. When the students is in the study process in class, the lecturers facilitate the study activity in order that goes along with the concept of scientists. Lecturers should design effective study by looking over the characteristic of the presented study material. Consideration must be done by the lecturer designing the study that is by choosing the approach, strategy, method, and technique of study. A complete union between approach, strategy, method, and technique of study will create learning model. Learning model which has been massively spread presently is Project Based Learning (PBL) which is one of the methods used in Merdeka Belajar Kampus Merdeka (MBKM) the implementation process of PBL should be recorded by utilizing digital technology to ease the management of PBL. This research builds system information PBL (SisPBL) as media to record the implementation of PBL. SisPBL development method is done according to the Research and Development (R&D) concept. SisPBL produced information PBL periodically Keywords: PBL, SisPBL, MBKM, R&D Share Link | Plain Format | Corresponding Author (Roslina Roslina)

161	Engineering	ABS-86
Use Of Design Thinking Approach On System Application Ui/Ux Design Based On Unsika Academic Information Mobile Intan Purnamasari, Vira Kristianingrum, Apriade Voutama Universitas Singaperbangsa Karawang, Jl. HS. Ronggo Waluyo, Telukjambe Timur, Karawang, Jawa Barat, Indonesia - 41361 Abstract Universitas Singaperbangsa Karawang (Unsika) Academic Information System is a service owned by the Universitas Singaperbangsa Karawang has a function for the management and administration of activities for students academic. However, this service is currently only available on a web-based basis and has a confusing flow when you want to use it in terms of display design being less attractive and not neatly arranged as in the positional layout which seems too dense and not easy to use. Therefore, it is necessary to design UI/UX on the mobile-based Unsika Academic Information System Application to overcome problems and make improvements so that students can use them as current users comfortably. In this research, UI/UX design was carried out to produce prototypes using design thinking as an approach or method. Then to get the measurement and assessment of user experience, this study used the System Usability Scale (SUS) and the User Experience Questionnaire (UEQ). Keywords: Unsika Academic Information System, Design Thinking, System Usability Scale, User Experience Questionnaire Share Link | Plain Format | Corresponding Author (Intan Purnamasari)

162	Engineering	ABS-87
THE EFFECT OF THE CAPILLARITY ON THE EFFICIENCY OF WICK-TYPE SOLAR ENERGY WATER DISTILLATION Riki (a) Bagas Dwi Nur Sasongko (a), FA. Rusdi Sambada (a*) Sanata Dharma University Kampus III Paingan, Maguwoharjo, Depok, Sleman, Daerah Istimewa Yogyakarta 55281, Indonesia *sambada[at]usd.ac.id Abstract The low efficiency of the wick-type solar energy water distillation is due to the significant flow rate of contaminated water that will be distilled at the absorber. The flow rate of water in the absorber is generally regulated using a faucet. However, setting the water flow rate using a faucet is very difficult to produce a low water flow rate. This study examines a new method of regulating the flow rate of inlet water in wick-type solar energy water distillation using the capillarity method. The study was carried out experimentally using a distillation model with an absorber area of 0.54 m2 and a cover glass thickness of 3 mm. The water flow rate will be varied by varying the thickness of the absorber by 0.08 and 0.16 mm. The results showed that the inlet water flow method using the capillarity method could increase the efficiency of solar energy water distillation compared to solar energy water distillation by adjusting the inlet water flow rate using a faucet. The highest efficiency increase of 34.2 percent was obtained at a variation of 0.08 mm absorber thickness. Distillation of solar energy water is generally needed in remote areas where drinking water sources have been contaminated with contaminants that are harmful to health. Regulating incoming water using the capillarity method is a simple method that can be applied to the community, especially in remote areas. Keywords: efficiency, solar, wick, distillation, capillarity Share Link | Plain Format | Corresponding Author (Riki Riki)

163	Engineering	ABS-343
PERCEPTIONS REGARDING COMPLETION OF TECHNICAL REQUIREMENTS FOR BUILDING LICENSE BY USING ^USG^ ANALYSIS Rahmadita (a), Popi Puspitasari (a) a) Architecture Department, Faculty of Civil Engineering and Planning, Universitas Trisakti, Indonesia Abstract To guarantee the fulfilment of safety, health and reliability aspects, building construction requires a building permit from the party determining and assessing the technical requirements. However, the facts show that a number of buildings have not met these technical requirements due to optimization considerations of limited land area, the amount of costs that must be in accordance with the owner^s request, and the lack of knowledge of planners about the requirements for building permits. In this regard, this study aims to: 1) identify the level of urgency in implementing the building permit requirements based on the perceptions of parties related to building design- 2) verify the application of the Building Permit requirements in the three building cases studied (1 Apartment and 2 Hospitals)- and 3) the response of policy makers to the results of research on the urgency level and verification of the implementation of the building permit requirements. In an effort to achieve this goal, a quantitative descriptive method through USG (Urgency, Seriousness, Growth) analysis measurements supplemented by an interview is considered appropriate. The findings are that the level of urgency/importance perception, in providing facilities, considered to meet the requirements of a building permit. along with the high or low number of opinions about whether it is safe/unsafe if they are not provided, and the high or low number of opinions about the growth of problems if the requirements are not met. The low level of urgency assessment lies in requirements that are considered unimportant, unsafe and not problematic, which are associated with considerations of whether or not it is difficult to fulfil and whether it is important or not provided. Overall research results can be used as input in improving the existing building permit requirements or as a basis for formulating future policies. Keywords: Building Permit- Implementation- USG Analysis Share Link | Plain Format | Corresponding Author (Rahma dita)

164	Engineering	ABS-344
Important Elements in Green Human Resource Management: An Analytical Approach Using a Fuzzy Interpretive Structural Model Uky Yudatama (*a), Siti Puryandani (b) *a) Universitas Muhammadiyah Magelang b) STIE Bank BPD Semarang Abstract Green Human Resource Management is an effort that can help reduce the impact of environmental damage. An important problem that has occurred so far is that the implementation of GHRM in organizations has not been able to run properly because they do not yet know what are the important elements/keys that affect successful implementation. In this study using the Fuzzy interpretive structure model (FISM). This method was chosen because it can help solve problems, especially related to data that is still blurry or biased. The results of the study found eight important (key) elements, namely: organizational culture- environmental awareness- policies and regulations- organizational commitment and discipline- awards and sanctions- behavior and motivation- competency and training- as well as socialization and communication. Research also produces levels (levels) of 8 elements which are divided into 4 levels. The first level contains E5 and E8- the second level contains E3, E4 and E6, the third level contains E2 while the fourth level contains E1 and E7. The results of this study are expected to assist stakeholders in implementing GHRM practices which they experience success after knowing the key elements, which can have an impact on increasing motivation in developing sustainable resources in organizations that have an impact on improving performance. Keywords: elements- important- ghrm (green human resource management), fism (fuzzy interpretive structural model) Share Link | Plain Format | Corresponding Author (Uky Yudatama)

165	Engineering	ABS-94
Effect of Pumice-Based Nanosilica and Sodium Silicate Addition on Impact Strength of GFRP Composite Willy Akhsani Taqwim (a), Kuncoro Diharjo (a*), Bambang Kusharjanta (a) a) Mechanical Engineering Dept., Engineering Faculty, Sebelas Maret University, Indonesia *kuncorodiharjo[at]ft.uns.ac.id Abstract The background of this research is the abundant availability of pumice for producing nanosilica as filler in GFRP composite. The sodium silicate is also used to reduce void in the composite. Material characterization was carried out by impact testing supported with SEM observations. This study aims to investigate the effect of pumice-based nanosilica particles and sodium silicate addition on the impact properties of GFRP composite. The composite was produced using hand lay-up and press molding methods for 20% glass fiber and 10% filler content (w/w). The specimens were tested using izod impact tester and SEM observation. GFRP composite with 10 wt% of pumice-based nanosilica filler has the highest impact strength among other filled composites, and the lowest is the composite with 5 wt% of pumice-based nanosilica and 5 wt% sodium silicate. The result of this study is to meet the optimization of impact and fire resistance properties as the effect of flame retardant addition (pumice-based nanosilica and sodium silicate) on the GFRP composite in the scope of mechanical engineering, especially in the field of composite materials. Keywords: composite- pumice- nanosilica- sodium silicate- impact Share Link | Plain Format | Corresponding Author (Willy Akhsani Taqwim)

166	Engineering	ABS-350
REVIEW OF K-250 CONCRETE COMPRESSIVE STRENGTH USING MIX DESIGN MANUAL ON DEVELOPMENT PROJECTS CONTINUED TALUD AIRPORT OF SYUKURAN AMINUDDIN AMIR LUWUK Mukhtar Lutfie1, and Adryan Winardi Latuba2 1,2Program Studi Teknik Sipil Fakultas Teknik Universitas Muhammadiyah Luwuk Abstract Compressive strength is the stress that occurs in the test object when the load is applied until the test object is destroyed. Before making the test object, the first stage is to do a slump test. If it meets the standard specifications then manufacture the test object. The specimens were dried in the sun for 7, 14, and 28 days without any vibrations then the samples were allowed to stand until they hardened and did not crumble. At the mixing stage, it is still done manually by using the volume ratio of the excavator bucket. This study aimed to determine whether the compressive strength of concrete reaches k-250, using qualitative research using the method of compressive strength of concrete k-250. The results obtained in this study are the longer the test object is dried, the greater the compressive strength obtained. The highest compressive strength value was obtained from the test on June 11, 2022, which was 461.35 kg/cm2. Whereas in other tests it decreased, but in other tests, it has shown a value that is suitable for use (suitable for embankment buildings) and meets the quality requirements for compressive strength in terms of the standards that have been set and the values obtained have met the category based on the standard SNI 03 1974-1990. Keywords: Slump Test, Test Object, Compressive Strength, Talud. Share Link | Plain Format | Corresponding Author (Mukhtar Lutfie)

167	Engineering	ABS-97
Web-Based Knowledge Management System Design on Micro, Small Medium Enterprise (MSMEs) Reog Ponorogo Ghulam Asrofi Buntoro(a), Indah Puji Astuti(a*), Wahna Widhianingrum(b) a)Department of Informatics Engineering, Faculty of Engineering *indahpujiastuti[at]umpo.ac.id b)Department of Management, Faculty of Economics Universitas Muhammadiyah Ponorogo, Indonesia Abstract Reog is one of the famous arts in Ponorogo. Reog Ponorogo is held not only to entertain the public, but also for ritual ceremonies. Reog craftsmen who are members of the Reog MSME business experienced many obstacles, especially during the covid-pandemic in obtaining raw materials, production and marketing. This study aims to design a web-based Reog MSME Knowledge Management System. The system will provide all the information needed, from Reog history to marketing. The method used for system analysis of KMS uses the Unified Modeling Language (UML). The results of the research are analysis documents and design documents which contain use cases, and interface designs from web-based Knowledge Management System on MSMEs of Reog Ponorogo. KMS was created to help craftsmen and public to get information related to Reog information. The feature of the KMS contain of: Reog, Production Technology, Reog Craft Result, and Marketing. Keywords: Knowledge Management System- Reog Ponorogo- Web-based KMS Design Share Link | Plain Format | Corresponding Author (Indah Puji Astuti)

168	Engineering	ABS-355
Aspect-Based Sentiment Analysis of Borobudur Temple Reviews use Support Vector Machine Algorithm Muhammad Resa Arif Yudianto (a*), Pristi Sukmasetya (a), Rofi Abul Hasani (a), Maimunah (a) a) Department of Informatics Engineering, Universitas Muhammadiyah Magelang Jl. Mayjen Bambang Soegeng, Glagak, Sumberrejo, Kec. Mertoyudan, Kabupaten Magelang, Jawa Tengah 56172 Abstract As one of the most popular tourist attractions in Indonesia, Borobudur Temple is currently included in the top ten list of tourism priorities by the Ministry of Tourism. To increase the number of tourists, it is very important to maintain the quality of tourist attractions. Tourist growth is directly related to the number of online reviews of tourist attractions. Tourism managers need more than just reviewing good and negative sentiments to maintain and improve the quality of tourist attractions. Many aspects serve as benchmarks for visitors to come to a tourist spot, such as aspects of ticket prices, location, attractiveness, facilities, accessibility, visual image, and human resources. Therefore, sentiment analysis is needed for each of these aspects to find out aspects that need to be improved in order to increase the number of visitors. Support Vector Machine (SVM) is an algorithm used to categorize aspect-based sentiments. analyzed using SVM, the dataset must first be cleaned and normalized through pre-processing. The results of the analysis show that the aspects of accessibility and visual image need to be improved to maintain and increase the number of visitors. This is because these two aspects have the most negative reviews compared to other aspects. The results of model testing only get an average accuracy value of 0.8148 because the distribution of data for all aspects and reviews is not balanced. Keywords: Aspect-based sentiment analysis- ANN- Borobudur Temple Review- Text Analysis- Share Link | Plain Format | Corresponding Author (Muhammad Resa Arif Yudianto)

169	Engineering	ABS-362
Pattern Analysis of Stunting Factors in Toddlers using data mining method the a priori algorithm Rofi Abul Hasani, Pristi Sukmasetya, Muhammad Resa Arif Yudianto, Universitas Muhammadiyah Magelang Abstract Stunting is one of the developmental problems in children which is influenced by many factors. Experts in the field of nutrition mention several influencing factors such as nutrition during pregnancy, mother^s knowledge about nutrition, limited access to services, inadequate access to sanitation and water hygiene. From the data of stunting sufferers, how many parameters will form a pattern. From these patterns will be analyzed using a data mining method. In this study, 557 stunting data in Jakarta will be analyzed. The data mining method used is the association rule with the a priori algorithm. The steps taken are to perform data cleaning, data integration, data transformation, data mining and pattern evaluation. There are many attributes in the data studied, but it is determined that several attributes are appropriate to obtain optimal results. The attributes taken are adjusted to research from the health sector. The test results produce several association rules. From all the association rules obtained using the Apriori algorithm, it is taken that meets a minimum support of 0.4 and a minimum confidence of 0.5. There is a result of 73% of the total meeting the minimum support and confidence. So that the results of the association rules can be used by health experts and stakeholders as a reference in determining policy. Keywords: data mining, assotiation rule, stunting Share Link | Plain Format | Corresponding Author (Rofi Abul Hasani)

170	Engineering	ABS-363
Local Government Innovation Management Information System: Proposed Design and Concept Ardhin Primadewi, Catur Rahmawati Universitas Muhammadiyah Magelang Abstract Information system (IS) innovation can be defined as a novel organizational application of digital computer and information communication technologies (ICT). This development are triggered breakthroughs in the capability of ICT that lead to the revision and expansion of computing. IS innovations are those that lead to changes in the application of ICT that is pervasive. The pervasive nature implies that innovative activity spans all innovation subsets of IS innovation. Innovation types include: IS use and development processes- application architecture and capability- and base technologies. The City of Magelang seeks to manage the development of existing innovations in the government environment from various fields. This innovation management system was developed to facilitate data management, ease multiuser access and computational calculations using the weighting method. Keywords: information management- information management systems- innovation process- innovation products- government Share Link | Plain Format | Corresponding Author (Ardhin Primadewi)

171	Engineering	ABS-368
UTILIZATION OF PUBLIC OPEN SPACE: MOVEMENT PATTERN AND COMPROMISED TERRITORY Shintaya Ausi, Popi Puspitasari* Master of Architecture, Faculty of Civil Engineering and Planning, Universitas Trisakti, Jakarta, Indonesia *popi[at]trisakti.ac.id Abstract Understanding open space management based on local culture is an important aspect in creating an inclusive quality of community life. Serang City Square is a public space that has high vitality in its utilization for the local community. The government of Serang City (the capital of Banten Province) currently manages the area including the square. Its spatial layout is optimally organized for directed development, so that it suits the needs of users. The research objectives are 1) to study the movement patterns of space users through user considerations in choosing space, time and place for activities - 2) to reveal the territoriality of space utilization and informal agreements underlying its management. The research method used a quasi-qualitative approach, with place-centered mapping techniques and in-depth interviews. The results show that 1) the pattern of public open space utilization and its changes are influenced by the choice of time, type of activity, weather conditions and distance, 2) spatial territory is built by attachment to space due to habits and agreements of space users based on informal rules and compromises. This research contributes to local governments in considering the planning and arrangement of open spaces. Keywords: Public Open Spaces, Spatial Utilization Patterns, Space Territories, Behavioral Mapping Share Link | Plain Format | Corresponding Author (Shintaya Ausi)

172	Engineering	ABS-376
Chitosan from Shrimp Shell Waste as Biopolymer in the EOR Method: Literature Review Baiq Maulinda Ulfah1,2, Muhammad Taufiq Fathaddin2*, Rini Setiati2, Dyah Rini Ratnaningsih3, Abdi Suprayitno1, Rohima Sera Afifah1, Firdaus1, Hamriani Ryka1 1) Sekolah Tinggi Teknologi Minyak dan Gas Balikpapan, Balikpapan, Indonesia 2) Universitas Trisakti, Jakarta, Indonesia 3) Universitas Pembangunan Nasional ^Veteran^, Yogyakarta, Indonesia Abstract Enhanced Oil Recovery, or better known as EOR, is an alternative that can be done to increase the recovery of oil production in a field. One of the EOR methods that can be done is the injection of chemicals in the form of polymers. Polymer injection can reduce the mobility ratio between oil and water, because by adding polymer the viscosity of water will increase and the efficiency of driving oil by water will also increase. One of the many polymers developed is biopolymer. The use of biopolymers is considered to have several advantages, such as easy to obtain in nature, environmentally friendly, resistant to salinity and high temperatures. One of the bipolymers developed is chitosan. Chitosan is one of the biopolymers obtained from the deasitellation process of chitin which is found in many animal shells such as shrimp, crabs, crabs and oysters and other shelled animals. Keywords: Chitosan, EOR, Biopolymer, Shrimp, Mobility Ratio Share Link | Plain Format | Corresponding Author (Muhammad Taufiq Fathaddin)

173	Engineering	ABS-122
Airlift Pump Investigation Using Variation of Nozzle Diameter Based on Computational Fluid Dynamics (1) William Ferdi Famgeorgy, (2) Stefan Mardikus, M.T., (3) Natanael Bima Anansa. Department of Mechanical Engineering Faculty of Sains and Technology Sanata Dharma University Yogyakarta Indonesia. Abstract Water is a liquid fluid that plays an important role in our daily lives that has properties that are easy to distribute from high pressure places to low pressure places and the opposite. The type of pump used to drain water is in the form of an airlift pump. The purpose of this study is to determine the performance of airlift pumps when operated with different variations in nozzle size and mass flow rates. In the implementation of making this airlift pump simulation, it is designed and simulated using ANSYS-based Computational Fluid Dynamic which is operated using a multiphase flow. In the simulation test with variations in the size of the nozzle diameter the greater it will cause a decrease in the discharge value of the fluid outlet and produces the shape random pressure contour. Streamlined velocity flow pattern shape obtained becomes increasingly regular with a range of velocity values which is decreasing. To determine the best performance of the airlift pump based on the variations given and to know the flow pattern phenomena that occur in the airlift pump simulation. Keywords: Airlift Pump- Computational Fluid Dynamics- Mass Flow Rate- Multiphase- Nozzle Diameter. Share Link | Plain Format | Corresponding Author (William Ferdi Famgeorgy)

174	Engineering	ABS-123
Airlift Pump Investigation using Variation on Pipe Diameter Based On Computational Fluid dynamics (1) Natanael Bima Anansa, (2) Stefan Mardikus, (3) William Ferdi Famgeorgy Department of mechanical engineering Faculty of sains and technology sanata Dharma university, Yogyayakarta, Indonesia Abstract Water is a liquid fluid that plays an important role in our daily lives that has properties that are easy to distribute from high pressure places to low pressure places and the opposite. The type of pump used to drain water is in the form of an airlift pump.This study aims to determine the discharge output and contour pressure as well as the streamlined velocity phenomenon that occurs in the airlift pump.The process of designing the geometry of the airlift pump using Solidworks software is then simulated using Computational Fluid Dynamics (CFD) based on ANSYS.The simulation shows that the larger the diameter of the airlift pump pipe, the greater the resulting discharge. Contour pressure shows, the larger the diameter of the pipe, the smaller the pressure entering the pipe. Streamlined velocity indicates the velocity of flow in the pipe.To determine the best performance of the airlift pump based on the variations given and to know the flow pattern phenomena that occur in the airlift pump simulation. Keywords: Please Just Try to Airlift pump- Computational Fluid Dynamics (CFD)- Mass flow rate- Multiphase- and Pipe diameter.Submit This Sample Abstract Share Link | Plain Format | Corresponding Author (Natanael Bima Anansa)

175	Engineering	ABS-124
PLC and HMI Application for Fuel Mode Switch on Automobile Engine Gasoline-LPG System Muhammad Firdaus Jauhari (a*)- Rusmini Sri Maryati (a)- Saberani (a)- Norhafani (a)- Raihan (a)- Muhammad Arsyad (a) Politeknik Negeri Banjarmasin * firdaus.jauhari[at]poliban.ac.id Abstract The development of electric car technology not only reduces environmental pollution but also touches the control system on car devices. In this study, the application of a dual fuel engine in automobiles using gasoline and LPG (liquid petroleum gas) which originally used a manual switch was developed into an electronic switch utilizing PLC (programmable logic controller) and HMI (human-machine interface) technology. Developing a fuel mode switch in automobiles that use dual fuel engines with PLC and HMI applications, allows for more potential applications for other features in automobiles towards IoT (internet of things). In developing the fuel mode switch, the ADDIE method was used. The stages in the ADDIE method are Analyze, Design, Development, Implementation, and Evaluation. The devices used include a PLC-based Android HMI with the HC-05 Bluetooth module which is programmed using the Outseal Studio application, Modbus Human Machine Interface, and Hercules Setup Utility. The manual switch used for automobile fuel mode is replaced by using an android. The wireless connection uses Bluetooth to control the PLC which functions to change the fuel mode between petrol or LPG, Bluetooth distance is connected up to 12 meters. The results of PLC and HMI applications can be used in many ways for various features in automobiles, this control system is also directed to include developments in the automotive mechatronics discipline. Keywords: PLC- controller- HMI- fuel mode- automobile Share Link | Plain Format | Corresponding Author (Muhammad Firdaus Jauhari)

176	Engineering	ABS-382
ANDROID-BASED MONITORING AND METER RECORDING APPLICATIONS Sayogyo Pangestu, Setiya Nugroho, Nuryanto Informatics Engineering, Faculty of Engineering, Universitas Muhammadiyah Magelang, Magelang, Indonesia Abstract It is difficult for the people of Dlimas Tegalrejo village to find out information on drinking water bills and payment due dates. They have to wait for the presence of Pamsimas officers to find out this information. Water customers also cannot access billing and payment data in real time. This study aims to produce an application system for monitoring and recording metering in the village of Dlimas, Tegalrejo using a QR code with a mobile-based application. This system will be designed using the prototyping method, database design using ERD, and application design using UML. This application is built using Firebase services to produce Android-based applications. This research produces an Android-based application with three access rights, namely officer, admin and customer. Officers can send customer data meter numbers with the QR code scan feature. The admin is in charge of inputting customer meter data. Customers can view data on drinking water bills in real time. This study produced several algorithms in mobile programming, namely water payment calculations, late payment calculations, fine calculations, tariff and price data, and total payment calculations. The designed system can complete the work in 23.34 seconds or four times faster than the previous process. Keywords: Android, QR Code, prototyping, Firebase Share Link | Plain Format | Corresponding Author (Setiya Nugroho)

177	Engineering	ABS-383
Improved Engine Performance Using Ozone Generator Herlang Miftah Anantama1, Erika Achmad Fuad 1, Budi Waluyo1, Saifudin1* Automotive Engineering, Faculty of Engineering, Universitas Muhammadiyah Magelang, Indonesia Abstract An increase in the number of vehicles today will result in an increase in fuel oil consumption and emission pollution. Therefore, it is necessary to optimize for fuel oil economy and emission reduction by improving engine performance. Improving engine performance can be done through several factors, including- with compression ratio, volumetric efficiency and fuel quality. The purpose of this study is to prove that with the addition of ozone (O3) the combustion process will be more reactive than oxygen (O2) so that it can produce faster and more complete combustion. This study will convert oxygen (O2) into more reactive ozone (O3) by using a 15 g/h plasma plasma generator ozone installed on an air filter. Engine performance testing includes engine power and torque using a 50L super dyno type dynamometer chassis. The test results showed, with ozone generator engine torque increased from 0 - 0.5 Nm and increased engine power from 0 - 0.4 KW compared to without using an ozone generator. Nevertheless, the use of ozone (O3) at a high equivalent ratio can lead to knocking. Keywords: Ozone generator, Increased Power and Torque Share Link | Plain Format | Corresponding Author (Saifudin Saifudin)

178	Engineering	ABS-131
Design of Rocket Stove with Computational Fluid Dynamics (CFD) Simulation Yotam Stefanditya, Felicia Maya Puspita Anastasya Kusbagyo, Agus Kurniawan, Bayu Prabandono Manufacturing Design Engineering, Politeknik ATMI Surakarta, Indonesia Abstract Keywords: rocket stove- product development- computational fluid dynamics simulation Share Link | Plain Format | Corresponding Author (Yotam Stefanditya)

179	Engineering	ABS-132
Modeling and Simulation of Flow through The Construction of River Cover Embankment: Case Study of Sei Wampu Weir, Langkat Regency, Indonesia Elma Yulius, Fanis Setiawan, Sri Nuryati, Anita Setyowati Srie Gunarti(*) Universitas Islam 45 Abstract Sei Wampu Weir construction project faced problems related to river cover embankment work, where the river cover embankment experiences scouring on the riverbed during flooding. The purpose of this study is to simulate flow model and determine the maximum flow speed, hence, the appropriate structure of cover concrete blocks can be determined. The analysis of water availability in this study used the F.J. Mock method by considering the watershed area, rainfall data, climatological data, evapotranspiration, and other supporting data to obtain 80% of the mainstay. Modeling and simulation of flow through river cover embankments was performed using the Hec-Ras 5.0.7 program with three scenarios. The determination of Locked Concrete Blocks as a handling solution refers to the Scientific Manuscript of Locked Concrete Blocks as Riverbed Control Buildings of the Water Resources Center in 2014. Results found the mainstay discharge analysis of 80% in 2020, which was 139.10 m3/s. The model results in the first scenario (width of the river still open about 85 meters) obtained a flow speed of 2.04 m/s, the second scenario (width of the river still open about 30 meters) obtained a flow speed of 2.48 m/s, and the third scenario (width that was still open about 10 meters) obtained a flow speed of 4.34 m/s. The locked concrete blocks for the first scenario used the six-foot locked concrete block type, whereas the second and third scenarios used the eight-foot locked concrete block. Based on numerical modeling and analysis results of locked concrete blocks, the appropriate and efficient scenario for closing the river cover embankment in the sei wampu weir construction project is the second scenario. Keywords: Reliable Discharge, FJ Mock, HEC-RAS, Locked Concrete Block Share Link | Plain Format | Corresponding Author (Anita Setyowati Srie Gunarti)

180	Engineering	ABS-145
The Impacts of Water Injection Application on the Performance of Internal Combustion Engines Wawan Purwanto, Ahmad Arif, Martias, Hendra Dani Saputra, Yolana Nursyafti, Alif Adrilana Universitas Negeri Padang Abstract As the temperature of the air entering the combustion chamber rises, consequently the combustion temperature, resulting in complete combustion of air and fuel in the combustion chamber and a decrease in the performance of the internal combustion engine. It also influences increasing emissions while decreasing engine power and torque. The objective of this study is to describe the impact of water injection on the achievement of internal combustion engines. The torque, power, and Specifics fuel consumption engine reveal the performance. Water injection was used to implement his research on various types of fuel, including RON 90, 92, and E10. According to the findings of his research, engine with water injection applications did not increase engine power (-1.74%), but there was an increase in torque of 1.30% on RON 90 and RON 92 fuel, an increase of 2.38%, while in E10 it reached 4.2% and was achieved at a lower motor rpm rotation than in standard conditions. Furthermore, the SFC of RON 90 fuel increased by 11.9%, RON 92 fuel increased by 18.1%, and E10 fuel increased by 25%.In this study, it could be an option to implement an engine with an E10 scale to reduce reliance on fossil fuels. Keywords: Performance- power- specific fuel consumption- torque- water injection. Share Link | Plain Format | Corresponding Author (Wawan Purwanto)

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