Admin Website UNIKOM

Tag: digital entrepreneur campus

  • Experimental Study of Dam Break Flow Generated by The Flap Gate in Horizontal Channel

    Experimental Study of Dam Break Flow Generated by The Flap Gate in Horizontal Channel

    Authors: Vitta Pratiwi ; Muhammad Syahril Badri Kusuma ; Hadi Kardhana ; Mohammad Farid

    DOI: 10.21660/2020.75.16098

    Abstract

    The risk of dam break failure become one of the most important issues to decide the feasibility of reservoir and dam development in Indonesia. This paper presents an experimental work result of a dam break flow through a single oblique obstruction in a straight rectangular channel. The dam break flow was generated by a sudden swing of a flap gate set on the contraction join of a horizontal reservoir and a horizontal channel. The initial condition of the dam break flow is set up based on the water height in this reservoir. A spatial temporal measurement of depth and velocity of the generated dam-break flow was conducted around the obstruction. The flow depth was measured using an ultrasonic-based sensor supported by a GPRS communication system, and the flow velocity was measured using a high-speed type current meter. Less correlation between the measured depth and velocity flow in the first of three seconds after the flow generation, where the flow has a high intensity of turbulent, was observed due to the limitation of data acquisition capacity. Compared to Noel’s experimental works where the dam-break mechanism is simulated using an uplift gate, the flow depth and velocity profiles of the current experimental work have a good agreement in its pattern and in less agreement in its magnitude. Meanwhile, compared to Noel’s numerical model result, it has fewer agreement results. These differences might be occurred due to the influences of differences dam break mechanism and data acquisition system. © 2020, Int. J. of GEOMATE.

    Author keywords

    Dam break; Experimental model; Flap Gate; Flood flow; Horizontal Channel


    This article can be accessed at: https://www.scopus.com/pages/publications/85096925617

  • Chatbot Based Applications on Smart Home Use Natural Language Processing

    Chatbot Based Applications on Smart Home Use Natural Language Processing

    Authors: Sri Nurhayati ; Joko Purwantoa

    DOI: 10.18517/ijaseit.11.2.10537

    Abstract

    Smart Home technology development is directly proportional to the emergence of various applications as access media. Currently, many Smart Home applications do not use the concept of human-machine interaction (HMI). The problem that often arises in the interaction between humans and machines is that humans must understand what the machine wants to have wrong perceptions about the system. In this study, the solution is proposed with the HMI concept, which uses natural language interaction through the chatbot application as an interactive medium to control and monitor Smart Home devices. In this study, the chatbot application implements the Natural Language Processing (NLP) text recognition process. User acceptance of the system is carried out using the evaluation stage. Thirty users participated in an in-depth usage study in which they tackled using the system. This research aims to create an application that can make it easier for users to control various devices on a Smart Home through natural language interaction and to analyze the performance of the NLP method. The results showed that most users (90%) believed that the application can help users control and monitor Smart Home devices. The NLP application on the chatbot application provides a success rate of 93.3% where the results obtained from the chatbot response depend on the completeness of the token. © 2021. All Rights Reserved

    Author keywords

    chatbot application; natural language processing; Smart home

    This article can be accessed at: https://www.scopus.com/pages/publications/85110006231

  • Society 5.0: Optimization of Socio-Technical System in Poverty Reduction

    Society 5.0: Optimization of Socio-Technical System in Poverty Reduction

    Author: Gustiana I. ; Wahyuni W. ; Hasti N.

    DOI: 10.1088/1757-899X/662/2/022019

    Abstract:

    The purpose of this study is to design a digital platform design as one solution to solving poverty problems that exist in the community with various causes. Poverty is a complex problem caused by multidimensionality. The cause of poverty is not only a problem of economic inequality but also caused by social problems, education, and lack of access to communicate or communication. The methodology used in this research is Sociotechnical System (STS), STS analysis used six attributes, namely goals, people, buildings/infrastructure, technology, culture, and processes/procedures. This approach (STS) analyzes approaches based on social problems and technical problems. The final results of this study created a digital platform design as a public space to capture community participation in order to care and want to share with poor communities in the form of entrepreneurship training groups (UKM). This technology becomes a tool to help in educating society, not a rival of the community in accordance with the principles of society 5.0.

    © Published under licence by IOP Publishing Ltd.

    This article can be accessed at: https://www.scopus.com/pages/publications/85075861932

  • Increasing the Efficiency of Electricity Use of PLTP Motor Control Center (MCC) Using Automatic Electronic System at PT PGE Karaha

    Increasing the Efficiency of Electricity Use of PLTP Motor Control Center (MCC) Using Automatic Electronic System at PT PGE Karaha

    Authors: Mansur Khudhori ; Ivany Sarief ; Hartuti Mistialustina ; Hardi Purnama Nurba ; Lilis Puspitawati ; Ketut Abimanyu Munastha

    DOI: 10.1109/TSSA59948.2023.10366992

    Abstract:

    The government’s efforts to maintain national energy stability through programs to increase supply and save energy must be supported by all levels of society, including the upstream side. This study analyzes the potential percentage of electrical energy savings on the upstream side, namely the generation sector. In this study, we will discuss the potential for saving electrical energy own use at PLTP Karaha 1 Pertamina Geothermal Energy located in Tasikmalaya district, West Java. In supporting the operation of PLTP Karaha unit 1, patrol check activities are needed which function to monitor the condition of generating equipment to ensure that the supporting equipment of the generator is in optimal condition. But in fact, when the patrol check activity has been completed, the room lights or indoor lighting are left on for 24 hours continuously due to the engineering design of the lights during the EPC (Engineering Procurement Construction) process. So, a control system is designed to operate indoor lighting automatically using Passive Infra-Red (PIR) sensors and Arduino ATMega 2560 module. Programming on Arduino is done using the Arduino IDE application. In the Arduino IDE application, it shows the library initialization program (sensor) and the initialization of the pins used on the Arduino. The program made on the Arduino IDE application is a program to control the On-Off lights, the LCD display includes the number of people entering the MCC room, the On-Lamp time and the total energy kWh. By using this method, it is hoped that it can be a solution for saving the use of electrical energy for indoor lighting. © 2023 IEEE.

    Author Keywords:

    Arduino ATMega 2560; Indoor Lighting; Own use; PIR sensor; PLTP

    This article can be accessed at https://www.scopus.com/pages/publications/85182733303

  • An Augmented Reality-Based Lipstick Color Recommendation System Model to Help Prevent COVID-19 Spreadness

    An Augmented Reality-Based Lipstick Color Recommendation System Model to Help Prevent COVID-19 Spreadness

    Authors: Agustia R.D. ; Bryllyantri A.

    DOI: 10.1063/5.0128549

    Abstract:

    The aim of this research is to provide lipstick color recommendations based on the analogous color theory. The recommended lipstick color is based on the user’s skin tone color, where the skin color that is taken is the skin of lip color. Facial landmark detection will be used as a method to detect the position of the user’s lips where the recommended lipstick color results can be seen in the form of augmented reality. To find out what lipstick products are used as the basis for lipstick color recommendations, questionnaires were distributed using random sampling to 100 female respondents, and data was sorted to obtain the three products that were most widely used by female respondents in Indonesia. Based on the results of the questionnaire the products most widely used by respondents are Wardah, Makeover, and Emina products. The results of the research is lipstick color recommendation system model based on the user’s skin tone color using augmented reality facial landmark detection method. Based on performance testing, detection can be carried out well with the criteria that the face is facing the camera with a tilt position of 0 °-45 °, the optimal distance between the camera and the face is 20-80 cm, and with optimal lighting using 40W incandescent lamp or 8 W-23W fluorescent lamp. During the COVID-19 pandemic, using lipstick product samples at the same time will increase the risk of contracting COVID-19 so the lipstick color recommendation system will be an alternative to help prevent COVID-19 spreads. © 2023 Author(s).

    Author Keywords:

    Augmented reality; lipstick color recommendation system


    This article can be accessed at https://www.scopus.com/pages/publications/85177603924

  • Optimized PID Control for Enhanced Electric Power Steering System Performance

    Optimized PID Control for Enhanced Electric Power Steering System Performance

    Authors: Rodi Hartono ; Hyun Rok Cha ; Kyoo Jae Shin

    DOI: 10.1109/INCITEST64888.2024.11121507

    Abstract:

    This research investigates the application of a proportional-integral-derivative (PID) controller for controlling an electric power steering (EPS) system equipped with a brushless direct current (BLDC) motor. EPS is an advanced automotive technology to assists drivers by reducing the physical effort needed to steer a vehicle and enabling precise computer-controlled steering in autonomous vehicles. EPS systems offer significant benefits over traditional hydraulic systems, including improved energy efficiency and steering precision. While EPS systems can present challenges due to their nonlinear characteristics, this study focuses on their linear range where the PID controller’s simplicity and effectiveness are beneficial. By optimizing PID parameters, the controller achieved precise tracking, fast transient response, and minimal steady-state error. Performance evaluation using a ± 10° angle target showed a rise time of 0.155 seconds, a settling time of 0.307 seconds, and an overshoot of 3.6% for a +10° target, and a rise time of 0.155 seconds, a settling time of 0.310 seconds, and an overshoot of 3.3% for a -10 target. These results show the PID controller’s capability to deliver consistent and accurate control in the EPS system, particularly when operating within its linear range. © 2024 IEEE.

    Author Keywords:

    electric power steering; linear operating range; nonlinear characteristics; PID controller; steering precision


    This article can be accessed at https://www.scopus.com/pages/publications/105015855979

  • Implementation of Microhydro Power Plants in Remote and Undeveloped Areas

    Implementation of Microhydro Power Plants in Remote and Undeveloped Areas

    Authors: Herry Saputra ; Alfi Nurakbar ; Hendri Praminiarto ; Agus Mulyadi ; Dedi S. Soegoto

    DOI: –

    Abstract:

    Electric energy is a vital element for the Indonesian community. However, in frontier, underdeveloped, and remote areas, access to electricity is uneven. An appropriate solution is necessary to overcome these supply limitations. This research aims to construct a micro hydro power plant utilizing existing river flows. The research employed descriptive analysis with a qualitative approach, while the equipment’s performance analysis used the fuzzy time series method. Findings indicate that micro hydro technology can generate up to 40 kW using four generators, relying on a minimum river flow rate of 60 litters per second. This system can meet the needs of 72 households with a lifespan of up to 15 years. The core concept was to use river flow to drive turbines, generating electrical power. Consequently, the government can minimize electricity development costs from major urban centres. Ultimately, micro hydro power generation technology serves as a solution for frontier, remote, and underdeveloped areas, providing access to electricity and illumination, and supporting the community’s living requirements. © 2024 Taylor’s University. All rights reserved.

    Author Keywords:

    Electric energy; Fuzzy time series; Micro hydro power plant

    This article can be accessed at https://www.scopus.com/pages/publications/85184612265

  • The Role of Environmental Policy in Promoting Green Transportation Technologies

    The Role of Environmental Policy in Promoting Green Transportation Technologies

    Authors: Siphimvadee Suthakavatin ; Khodor Shatila ; Karine Aydinyan ; Raeni Dwi Santy

    DOI: 10.1051/bioconf/202414506013

    Abstract:

    This study explores the role of environmental policy in promoting the adoption of green transportation technologies, focusing on the effects of financial incentives, regulatory frameworks, and public investment in infrastructure across key Asian urban centres. The research highlights how technological innovation acts as a crucial mediator between policy measures and the adoption of sustainable transportation options such as electric vehicles (EVs) and hydrogen-powered vehicles. Using Structural Equation Modelling (SEM), the study examines the relationships between these factors, demonstrating that higher levels of financial incentives, supportive regulations, and strategic public investment lead to significant advancements in technological innovation, which in turn drives the adoption of green transportation technologies. The findings contribute to the broader understanding of sustainable urban mobility solutions and offer important insights for policymakers and industry stakeholders in regions experiencing rapid urbanization. The study also discusses the dual role of these policy drivers, both in directly influencing adoption and in fostering technological advancement. © The Authors, published by EDP Sciences.


    This article can be accessed at https://www.scopus.com/pages/publications/85216661038

  • Analysis of Solar Powered Public Street Lighting Design (PJUTS)

    Analysis of Solar Powered Public Street Lighting Design (PJUTS)

    Authors: Sutono S.; Chepi Nur Albar

    DOI: –

    Abstract:

    This research aimed to propose and demonstrate a Solar-Powered Public Street Lighting lamps concept as part of a Community Service (PKM) initiative conducted at the Halim Cluster Housing Complex in West Bandung Regency. The study employed an experimental method combined with product design. The findings revealed that the solar-powered Public Street Lighting (PJU) design offers an innovative and environmentally friendly solution to meet public lighting needs. The calculation and testing involved 5V/12W LED lights, 12V/50Wp solar panels, a 10A charge controller, and 12V/30Ah lithium batteries. The solar-powered street lighting system can operate for 12 hours, even under sunny and cloudy conditions. © 2025 Taylor’s University. All rights reserved.

    Author Keywords:

    Battery; Charge control; Complex; Housing; LED


    This article can be accessed at : https://www.scopus.com/pages/publications/85214486386

  • A Modular Intelligent System for Energy Saving Using Fuzzy Logic and Artificial Neural Network Based on the Concept of Internet of Things

    A Modular Intelligent System for Energy Saving Using Fuzzy Logic and Artificial Neural Network Based on the Concept of Internet of Things

    Authors: Fadhila Azzahra ; Rahma Wahdiniwaty

    DOI: 10.1063/5.0255654

    Abstract:

    The purpose of this research is to build an intelligent system of control and monitoring of electrical energy at home and to find out the amount of efficiency that can be achieved after implementing a control and monitoring system of daily electrical energy at home. The use of electrical at home is a waste of energy which of course is often not realized by the users. Even though, this is caused by the many uses of electronic devices at home that must be used and live continuously, for example: the use of lights, water heater, Air Conditioners (AC) and others. Although these devices can be set up and work automatically, automatic devices only rely on time and condition variables. To save energy more efficient, homes need to be equipped with intelligent systems that can be control and turn on electronic devices only when needed. The method that will be applied in this research is by combining fuzzy logic and the integration of Artificial Neural Network (ANN). Besides that, this system will be built using the concept of IoT (Internet of Things). The result of this research is produced an IoT device for intelligent Controlling and Monitoring of Electrical Energy with fuzzy logic and ANN methods. This current research is developing an ESP32-based smart device for the internet of things that can be used to monitor and control electrical energy using fuzzy logic and Artificial Neural Network (ANN) methods. However, current research has found that this device can improve energy consumption at home by 28-37%. © 2025 Author(s).

    Author Keywords:

    Artificial Neural Network; Energy Saving; Fuzzy Logic; Internet of Things


    This article can be accessed at https://www.scopus.com/pages/publications/85219185646