bluuebunny/crossref_metadata_2025 huggingface dataset:
Development of the SEQ-alfa© multimedia in Chemistry learning
Authors: Fajariyah D , Irwansyah F S , Farida I
Published: March 2021

This research aims to develop the SEQ-alfa© multimedia, especially on the addition of language types and the addition of pressure and volume factors as the effect of shifting chemical equilibrium. SEQ-alfa is a multimedia simulation that can visualize the dynamic nature of a reversible chemical reaction in the equilibrium process, as well as the visualization of the particles in a reaction to reach equilibrium. SEQ-alfa© can also visualize the shift in chemical equilibrium when one factor (concentration or temperature) in the system is changed. The research method used is Design Based Research (DBR). The results of this study are in the form of designs that will be used in the development of SEQ-alfa© multimedia learning media.
Information system design of data bank population using Rapid Application Development
Authors: Fitriani L , Berlianti N E , Cahyana R , Baswardono W
Published: March 2021

Population data is available from the results of structured individual data and aggregate data as a result of population registration and civil registration activities. In Indonesia, many high school students who are seventeen years old do not yet have a national identity card; this is due to their lack of knowledge of how registration to get a national identity card. The purpose of making this article is to provide an opportunity for students to make it easier to get their residence documents, such as making a National Identity Card. The methodology used is Rapid Application Development, with the stages of business modeling, data modeling, process modeling, application formation, testing, and turnover, wherein this article is limited only to the scene of the modeling process. The results of this study are in the form of a population data model in Web-based for Senior High School or Equivalents, and to make it easier for students to receive information about their residence documents such as making national Identity Cards.
Implementation of the Markowitz method in the Robo-Advisor application for best investment selection
Authors: Gerhana Y A , Umam M M , Atmadja A R
Published: March 2021

Investment is the best way to ensure financial security in the future. The number of investment choices available often makes potential investors confused in determining the right investment choice. The purpose of this study is to implement the Markowitz Method in the Robo-Advisor application to the selection of appropriate mutual fund investment products. This research is experimental in finding the best mutual fund portfolio. The Mutual Funds products used are Danareksa Flexible Orchid (DAF), Bahana Trailblazer Fund (BTF), CIMB Principal Total Return Equity (CIMBPTRE), and Danareksa Mawar Consumer 10 (DMK). The data used amounted to 60 data from 2014 to 2018. Based on the results of calculations, the first portfolio has a higher return rate of 0.55%, while the second portfolio has a return rate of 0.54%.
Development of digital comic for science learning in elementary school
Authors: Sari Y , Sari R P , Sumantri M S , Marini A
Published: March 2021

This study aims to develop digital comics for learning science in elementary schools. Digital comics make it easier for students to learn science both online and online. The method used is research and development. The method used in data collection is a questionnaire. Research and development results: (1) The development research process is carried out with several stages adapted from the Plomp development model. The stages: Initial Investigation, Design (design), Realization (construction). The initial investigation phase includes curriculum analysis, material analysis, and analysis of learning objectives. The design phase includes the preparation of material, media selection, format selection, and digital comic design. The realization phase (construction) includes finished products in the form of applications (.apk).
Development of educational games for learning waste management
Authors: Satria E , Fitriani L , Muhsin Y S , Tresnawati D
Published: March 2021

The waste problem is caused by people’s behaviour that does not care about environmental cleanliness. This study aims to create an Android-based game education application as a means to educate the public in managing waste. The method used is the multimedia development life cycle, consisting of concept, design, material collecting, assembly, testing and distribution. The results of the study are in the form of the design and development of edugame applications on waste classification, targeting primary school children. The edugame design consists of 3 levels, adapted to the classification of waste types: organic, non-organic and toxic. The application is built on the Android platform with the concept of an adventure game that provides users with real-world experience in managing waste properly. Edugame application is expected to be an alternative in learning to the community in maintaining environmental cleanliness.
Classification using Deep Learning based on selection optimizing counseling data
Authors: Budianto A E , Othman M F I , Rahim Y A
Published: March 2021

Counseling is professional assistance given by counselors to clients directly, to solve problems and improve their behavior. In the future. The discussion of the problem in question is in-depth which concerns important matters about the client, broad covering various aspects of the client’s problem, and specifically to alleviate the client’s pressing problems. The Support Vector Machine and Multi Layer Perceptron algorithm is applied to classify counseling data provided by professionals to clients with an accuracy of 86.39%. Data from Vocational Research in Malang City in 2018. To improve the optimal accuracy of the type of counseling data classification, this study proposes an algorithm optimization feature for the Deep Learning algorithm. The results showed a significant increase in accuracy. The value of classification accuracy in counseling data generated by the Deep Learning algorithm has increased to 97.37% with a better level of accuracy.
Development of an online system for reporting service problems of state-owned companies
Authors: Cahyana R , Satria E , Faujiah E , Heryanto D
Published: March 2021

Several state-owned companies in Indonesia provide subscription services for the general public. One of them is the Regional Water Company as a provider of clean water. Handling service problems by the company affect customer satisfaction. This study aims to develop that online system for reporting service problems by following the Rational Unified Process stages, which are limited to the construction stage. The research successfully developed the system, which includes user activation functions, problem maps, as well as reporting and history of problems, and their handling. The system becomes a communication bridge between the company and the customer. Through this system, companies can see the condition of customers displayed in the form of icons and at several points of geographical location on the map. The green icon represents the condition of the customer who is not dealing with the problem, and vice versa is red. The yellow icon represents the condition of the customer whose issue is being handled by the company.
Weather data processing application system web-based for pest control of rice plants diseases
Authors: Supriatna A D , Septiana Y , Baswardono W , Satria E
Published: March 2021

One of the factors that influence the success of rice cultivation is the control of pest and disease disruption. Disruption and development of disease pests are very dependent on the weather conditions so that weather information is needed that develops in the planting area so that disruption and the development of pest pests can be controlled and does not have a significant effect on the productivity of rice plants. Therefore, we need a way that can be used as a guide for farmers so that they can overcome the limitation of farmer’s knowledge on the effects of changing weather conditions. The main weather components that affect the growth and development of rice plant pests are temperature and humidity. The research aims to develop software that functions to process temperature and humidity data on the growth and development of rice plant pests so that it can help farmers to maintain the development and control of rice plant pests. The system design method used is object-oriented methods, namely the Rational Unified Process, which consists of several stages including inception, elaboration, construction, and transition. The application system developed was designed using web-based technology that can be accessed through the use of smartphones so that farmers can easily access it. With a simple appearance and user-friendly interface, it makes it easier for farmers to understand the features available in the application system.
Game Open Online Physics Instructional (GOOPI) for technology improving 21st-century careers
Authors: Wibowo F C , Nasbey H , Sanjaya L A , Darman D R , Gumala Y , Adityo F P , Budi A S
Published: March 2021

Physics is fundamentally formed from scientific processes that take place continuously and sustainable through experimental stages known as the scientific method. The scientific method will give a positive meaning if the Instructional Physics can be applied in learning through online games to improve 21st-century careers. This study aims to Development of Open Online Physics Instructional Games (GOOPI) for improving 21st Century Careers. The research method used was ADDIE (Analysis, Design, Develop, Implement, and Evaluate). The results showed that Development of Open Online Physics Instructional Games for improving 21st Century Careers.
Microservice architecture design for autograder using distributed architecture
Authors: Elsen R , Nashrulloh M R , Cahyana R , Mulyani A , Latifah A
Published: March 2021

An autograder is a system for grading student code submission so the lecturer and student can get the result immediately after code has been submitted. This system using distributed architecture which uses multiple backends as a grader in purpose to reduce execution time caused by the queue. This system needs some components to make it work. Based on distributed architecture applied in this system design, the components need to be separated and run independently but still running their respective orchestras. In this paper, we propose a microservice architecture design to determine components that might be needed by autograder to complete its purpose and run well.
Recommendation for giving loans using the Multi Objective Optimization method based on Ratio Analysis
Authors: Dauni P , Wahana A , Anjani F , Manaf K
Published: March 2021

Mekar Harapan Farmers’ Cooperative, a cooperative which was dealing with savings and loans. This cooperative has a constraint in lending operations, namely the provision of lending recommendations in accordance with the rules that are less effective and efficient in determining the feasibility decisions for a large number of loan applications so that they are less selective in making decisions. To assist cooperative management in determining the eligibility of loans by providing a fair, objective and transparent assessment, a system of recommendations is needed that can help the selection process in accordance with predetermined criteria. The methodology used in this system is the method of Multi Objective Optimization on The Base of Ratio Analysis (MOORA) because this method has a good level of selectivity in determining an alternative. This system will be used as a medium of evaluation by the MOORA method of several loan applications that have been registered in the system conducted by members and managed by officers, then approval by supervisors. With this Loan Recommendation, it is expected to make it easier for officers in the selection process to determine the eligibility of a loan so that the results of the assessment can be known easily, quickly, and accurately.
Implementation irrigation system using Support Vector Machine for precision agriculture based on IoT
Authors: Sumarudin A , Ismantohadi E , Puspaningrum A , Maulana S , Nadi M
Published: March 2021

The industrial revolution 4.0 is driving increased production and automation of systems using the internet of things and data mining. Climate change and young farmers knowledge make it necessary to create an internet-based and Artificial intelligent farming system. Farmers need a system that can help the process of watering and fertilising for crop growth. In several previous studies, calculating the prediction of water density from moisture sensor data and to predict future moisture values using SVM, the implementation of artificial intelligence for precision agriculture to detect field-grown cucumber, in other studies determining the amount of water using fuzzy systems and neural networks, parameters used in determining irrigation systems consist of environmental data including ambient temperature, humidity and soil moisture several additional variables in determining irrigation control using crop water demand, soil evapotranspiration and weather condos, forecasting agriculture water uses LS-SVM to improve accuracy and speed in the forecasting process implementation of automated irrigation using IoT. In this paper, we propose the integration of water quantity predictions on plants using several environment variables for forecasting using linear Support vector machine. Accuracy rate of SVM reaches 95%, 94.3% precision, 91% recall, F1-score 92.7%. The results of the forecasting will be sent to the end node using the MQTT protocol.
The Impact of Electronic Puzzle on two-dimensional shapes grouping lesson
Authors: Rahayu S , Ladamay I
Published: March 2021

This research aimed at developing Electronic Puzzle media to assist students in understanding an abstract concept of two-dimensional shapes grouping lessons. This research employed a quantitative approach with quasi-experimental method. This research further intended to determine the effect of Electronic Puzzle media on student learning achievement. To determine the sample, it employed random sampling technique. The research data were tested and analysed through SPSS 21.0 for Windows. The results showed that there was an influence of use Electronic Puzzle using application I’m a Puzzle to improve student learning achievement in class II SDN Gadang 01 Malang. There are difference learning achievement between students taught using Electronic Puzzle and not. Through these results it is expected that elementary school teachers can develop themselves in the use and development of electronic-based media and teaching aids in their classroom learning.
Prediction of courses score using Artificial Neural Network with Backpropagation algorithm
Authors: Kurniadi D , Mulyani A , Septiana Y , Yusuf I M
Published: March 2021

This study aims to predict the final score of courses of students who are undergoing education in higher education. In the future, this work will be used to inform students that there must be early anticipation in implementing the study of courses in order to get a satisfying final grade. The Artificial Neural Network with Backpropagation algorithm is used to solve the prediction problem for the final grade of this course. The dataset collected was 337 students who will be used for training and testing needs. Prediction variables used consisted of the value of attendance, assignments, midterms, and final exams. The network architecture using a multi-layer perceptron with three layers, namely the input layer, hidden layer, and output layers, with a 4-3-1 neuron pattern. The results showed that using a learning rate of 0.2 and repetition Epoch 1000 times, resulting in an RMSE value of 0.040929 and MSE of 0.001675 with an accuracy rate of 93.43%.
Blended Learning implementation in introduction to artificial intelligence courses using the System Development Life Cycle method
Authors: Prasetyo D , Wibawa B , Dima A O
Published: March 2021

Indonesia is an island nation with geographical conditions that are bounded by many seas and mountains. The situation causes the condition of the islands that are far apart from one another. This certainly affects the conditions and social, economic, technological, and related interactions in daily life, one of which is the level of educational progress in one region / island with other regions / islands. The level of educational progress is certainly influenced by how the learning system is implemented in that place. To overcome the obstacles in improving the quality of learning and equal distribution of learning opportunities in different geographical, cultural, socioeconomic conditions, one solution is created, namely Blended Learning by utilizing devices connected to the internet. Methods that can be used in this research include SDLC (System Development Life Cycle). The optimism of the successful implementation of the Blended Learning system is very high because the facilities and atmosphere of various parties are very supportive plus the needs will become priority needs for everyone in this case students. In the province of East Nusa Tenggara has the geographical conditions of many islands, therefore the Blended Learning system is good enough to be applied, because in addition to the above mentioned transportation limitations for students and educators also become obstacles in conventional learning.
E-commerce information systems as leather marketing in Garut
Authors: Nugraha Y , Bhakti D D , Hamdani N A , Tetep T , Ainina Z N
Published: March 2021

Garut Regency is one of the cities that has leather craft with good quality that can compete nationally and internationally, the products is leather mat, leather jacket, leather shoes, leather bags, gloves, hats and many other processed leather products. As the development of Garut city, many more businesses are also in the field of leather, ranging from small entrepreneurs to large entrepreneurs. The writer conducted research to increase sales and expand the marketing of Garut leather products through a web-based e-commerce sales information system and use development method using a fast and simple Process. The results obtained in the form of a web site that can be accessed to serve online sales transactions so that to increase sales of processed leather products in Garut regency.
Irrigation forecasting by using fuzzy logic on sensor data
Authors: Puspaningrum A , Ismantohadi E , Sumarudin A
Published: March 2021

Water irrigation is one of the most critical resource in developing agriculture. Furthermore, increasing of domestic demand has been divert water supply in agriculture. However, the efficiency of irrigation is very low. Besides that, soft computing tools like Fuzzy Logic has been used widely in many areas. Fuzzy logic has a good performance to solve the problem precisely. In particular, this method has been found useful in the area of agriculture. So that, this paper proposes irrigation forecasting by using Fuzzy Logic. The irrigation is forecast by using several sensor data such as soil, air temperature, and humidity to calculate opening of valve. Experimental result shows that the proposed method can give the prediction of valve opening for irrigation.
Long-term forecasting of electricity in East Kalimantan Province using the fuzzy logic approach
Authors: Salihan G A , Abdullah A G , Hakim D L
Published: March 2021

The increase in the number of residents has an impact on the increasing number of electricity customers each year, resulting in an increase in electricity consumption. In order to achieve the adjustment of generation and demand for electrical energy needs electricity system planning is needed, one of which is forecasting the consumption of electrical energy in the future. This aims to realize optimization in the process of supplying electrical energy. In this study, the application of the fuzzy logic method is used to process the rules of the input variables and produce forecasting of long-term annual electricity consumption in East Kalimantan Province until 2028. In addition, the Exponential Smoothing method is also used as a comparison method to determine the accuracy of forecasting calculation models. Electrical energy forecasting has characteristics that are usually influenced by factors such as population, number of customers, GRDP and so on. Input data used for learning fuzzy logic in this forecasting are the actual data for 2010-2018 and the projected input data for 2019-2028 are used to obtain forecasting results. Then the forecasting data for 2019-2028 is compared with the PLN RUPTL projection data. From the results of forecasting, the best level of accuracy with the smallest error value is obtained using the fuzzy logic method that is with a MAPE value of 3.80%. This research is expected to be a consideration for forecasting electricity consumption models for the planned transfer of Indonesia’s new capital in the area of East Kalimantan Province.
PLC (Programmable Logic Controller) distance learning using remote lab system
Authors: Purnomo R D , Mulyanti B , Kustija J
Published: March 2021

The aims of the research were to study PLC (programmable logic controller) distance learning using remote lab system, in term of student’s responses. This study used survey data collection techniques and quantitative descriptive methods for data analysis. The respondents are public and private Vocational High Schools students in West Java, Indonesia. The results of the research indicated that he remote lab system developed by researchers is easy for students to use. The use of remote laboratories helped students in practicing PLC programming. Most of VHS’s students in West Java said that they would recommend the remote lab developed to other students. This indicated the satisfaction of students in using the remote lab for distance learning. In addition, students’ stated that the overall remote lab system can worked well, easy to use, and they were satisfied with PLC distance learning using the remote lab.
Optimization of short message media in the Arduino and Bluetooth-based blank spot areas
Authors: Sulistiyowati I , Hanif F A , Nasar M , Sulistyanto M P T , Ahsan M
Published: March 2021

Communication is important in human life because communication can bridge all forms of ideas to be conveyed by someone. And the communication media commonly used today are via mobile phones, which can be via SMS messages, WhatsApp, or telephone. The problem is, in some areas the absence of signals or blank spots is a problem for those who rely on communication via mobile phones. For this reason, it is necessary to optimize the short message media in the Arduino and Bluetooth-based blank spot areas. Here the main goal is to make it easier for humans to communicate via mobile phones even in difficult conditions and without a data packet or WIFI signal. The tools used are android, the Lo-Ra module as a long-distance wireless transmission technology platform that can reach distances of 10km, and then also use the Arduino Pro Mini as a microcontroller board and Bluetooth terminal that functions to transmit data from android to Arduino and then forward it to Lo Ra. From the test results, it was found that this tool works well in the blank spot area or difficult to signal, without the need for data packages or WIFI we can still communicate well through the short message media on the cell phone. From the test results, it was found that this tool works well in the blank spot area or difficult to signal, without the need for data packages or WIFI we can still communicate well through the short message media on the cell phone. So, with the invention of this tool, we can still communicate through the medium of short messages even though we are in the blank spot area, and even when we do not have a data package or WIFI.
Harmonic evaluation of Plug-in Electric Vehicle on distribution network system
Authors: Mangunkusumo K G H , Hartono J , Pramana P A A
Published: March 2021

The significant development of plug-in electric vehicle (PEV) is a challenge for distribution networks. The PEV charger is a power electronic device that generates large amounts of power over a period of time to charge EV battery. In addition, the EV on board charger (OBC) also produces harmonics due to the process of converting AC grid voltage to DC voltage. Converter as OBCs main device is a source of harmonics which directly connected to the distribution network. In this study, harmonics from single OBC, multiple OBC and PEV penetration scenario were evaluated and compared with the SPLN standard D5.004-1: 2012. From the study results, THD injected to the distribution network is influenced by the percentage of the base load and PEV penetration. The worst possible condition is occurred under low load conditions while high PEV penetration happens. From the simulation results using the distribution network model especially in residential area, the low base load scenario (10.47%) and the high PEV penetration (90.01%) is generating TDD 6.59% and THDv 2.61%, respectively. Therefore, it is known that the harmonic effects generated by PEV charging to the distribution network still meet SPLN D5.004-1: 2012
Utilization of water flow for powering the internet-based water metering system household scale
Authors: Bramantyo R W , Nugroho W A , Ramdhani M , Yuwono S
Published: March 2021

Water is a vital element needed by humans, the use of renewable energy is a concept that is being developed at this time, one of which is the flow of water, electricity generation that utilizes water flow that uses water turbines that are placed in a rapid pipe which then turns the turbine wheel and converts the rotational power into electricity to power an Internet-based water meter system of Things. This research aims to develop PDAM water meters which are currently still analog then developed into digital and can be monitored by the system and utilize the water flow to turn on the whole system. Researchers design a tool that utilizes water flow to activate and store power reserves in the system by utilizing a monitoring system that makes it easy for consumers to find out the amount of water consumption and costs to be paid at intervals of a certain period. This system includes turbines, charging circuits, microcontrollers, and water rate sensors that are developed using the Internet of Things (IoT) and a power supply system in the form of batteries. The battery will charge when the generator reaches a stable condition and will automatically activate when the water flow reaches an unstable condition.
Design and analysis of multiple charge controller systems in hybrid power generation
Authors: Hidayat M N , Wulandari A D , Ronilaya F
Published: March 2021

Currently, the demand for electricity is increasing from time to time. While the existence of fossil fuels to generate electricity is depleted. This condition resulted in the use of renewable energy source in electrical power generation. Since the electricity generated from renewable energy sources is not constant because it is depending on the climatic conditions, a controller of the charging and discharging mechanism on a battery is necessary for it to work optimally for storing electricity. To overcome this problem, one of the solutions is by applying hybrid power generation technology. One the important equipment related to this technology is the application of a charge controller. The charge controller here is used to control the charging and discharging mechanism to store electricity in a battery. The charge controller is found mainly in a standalone mechanism where the controller only has one input from one renewable energy source. If we have more than one renewable sources, therefore we need a charge controller with multiple input terminals. This study examines and compares the design of a standalone charge controller and a multiple input charge controller. The result shows that it is more efficient to use a multiple input charge controller rather than to use two single input charge controller.
Manufacture and working procedure of Temperature Control Unit (TCU)
Authors: Sabri F N , Mukhidin M , Disastra Y S , Hasan B
Published: March 2021

Internet of Think (IoT) is a system that over time the development of technology makes it easy for users to carry out daily activities. Using the principle of the Internet of Think (IoT) making temperature control devices in a room can be more easily done. This room temperature controller is based on the ESP8266 microcontroller by utilizing an internet connection, users can find out the temperature in the room anywhere and anytime by utilizing the Message Queuing Telemetry Transport (MQTT) protocol. This research is intended to make it easier to supervise, control, and manage a job in this case that is for room temperature. In its application, that is bias for broiler chicken coops, server room temperature regulators, or other temperature monitoring required. Monitoring the temperature of a room in real time and not needing to be directly in place is an advantage of this research. The lowest room temperature can be adjusted as you wish or the standard we want. The output from this tool can be in the form of lights, fans, air conditioners, etc.
Bluetooth implementation on automation of Android-based gate doors
Authors: Hadidjaja D , Wisaksono A , Ahfas A , Syahrorini S , Untariningsih D H
Published: March 2021

The development of smartphone technology has been increasing in the use of applications with the support of the Android system. The facilities contained on an Android smartphone can be developed as an automatic tool in terms of operation of other equipment and can also be done remotely. By adding Bluetooth equipment to a gate, it can make automation easier for security guards to operate the gate. By using Bluetooth and Android smartphones, it will be more optimal in operating the gate automatically, especially over long distances, and can provide security for users. Automated gate test results for closing time moves with a speed of 3.7 per second. Bluetooth usage without barrier is the optimal distance between the gate automation equipment with the smartphone between 10 meters and 35 meters.
Implementation of particulate measuring and SO2 gas based on Android
Authors: Syahrorini S , Hadidjaja D , Ahfas A , Jamaaluddin J , Untariningsih D H
Published: March 2021

In the development of science and technology in the electronics field. So it can provide inspiration in the development of measuring instruments for the measurement of SO2 Particulates and Gas which provide economic and efficient value, so that it can be used by the public in measuring SO2 Particulates and Gas levels in the Sidoarjo Mudflow area. The Android-based measurement system on SO2 Particulates and Gas is an implementation of previous developments in terms of data display visible on smartphones and can be accessed remotely or anywhere connected to Wi-Fi or the internet network. So that it can easily take data in the measurement of SO2 Particulates and Gas. The design of this tool consists of ESP32 NodeMCU as a microcontroller, Particulate (Dust) sensor and MQ136 (SO2) sensor. Wi-Fi network or internet to facilitate communication between sensors and smartphones. The test results obtained a value of 0.104 (mG/Nm3) from the Particulate sensor with the category still at a safe level when compared to quality standards, and 15 ppm for SO2 Gas detected around the Sidoarjo Hot Mud. This shows that the sensor is working optimally and is very sensitive at the reading level.
A review on how a Perpetual Motion Machine generates electrical power
Authors: Hidayat M N , Chairandy S P , Ronilaya F
Published: March 2021

Electrical energy demand is increasing in accordance with rapid growth of the human population. Since fossil fuels is the most widely used energy source, thus it is depleting very fast. Alternative energy source is urgently needed to replace the use of conventional energy sources. Perpetual Motion Machine (PMM) which can be applied to produce electricity, may be an alternative solution for the problem the world is facing today. The machine is designed to generate power from repulsive forces of permanent magnet without utilizing external sources. Some researches had conducted experiments and Neodymium magnet is most used in the project due to its strong magnetic field. The device is mainly built using a permanent magnet, a rotating wheel and a generator. This paper reviews some aspects on how A Perpetual Motion Machine (PMM) generates electrical power. The aim of the paper is to provide a summary of the topic and its opportunities in further enhancements for better results. The study found that the concept is very effective, ecofriendly and less space needed. However, a larger scale development of the machine along with proper magnet and gear arrangement is currently needed for a better performance and application.
Integration of animal tracking and health monitoring systems
Authors: Saputra K , Kamelia L , Zaki E A
Published: March 2021

Animal temperature monitoring system and location tracking system based on Global Positioning System (GPS) and Short Messages Services (SMS) gateway is one of the effective solutions to solve problems in detecting the health level of pets and decrease the amount of pet-loss cases. The system using GPS technology installed on the animal’s body. The system uses the Arduino Pro Mini microcontroller that is connected to the GSM module as a communication channel between the user and the system. The system is designed to display the temperature and location data based on user requests sent via SMS. Tests show the system can work according to the initial scenario using the MLX 90614 sensor, Arduino Pro Mini AT Mega 328, GSM Module, and GPS module. The system has an accuracy of 99.62% compared to conventional thermometers. The system also has accuracy at 98.7% compared to the location accuracy on Google Maps.
Raspberry Pi based SCADA system using Codesys for workshop facilities
Authors: Abadi S C , Eriyadi M , Usman D , Hamdani Y M , Suryadi A
Published: March 2021

This study aims to create a prototype of the SCADA system used to control the lighting source facilities and a fan-based Raspberry Pi in the workshop of the Electrical Engineering Study Program of Politeknik Enjinering Indorama. This system consists of Raspberry Pi Model B, UL 2803 Driver, switch module, relay module, lamp, and fan. Raspberry Pi as a controller or mini PLC programmed using CodeSys software with the ladder logic diagram programming. The System control process can also be done through the HMI display (Human Machine Interface), HMI display is designed using Codesys Web Visualization feature so the system can be controlled through a PC or mobile web browser while connected to the campus intranet network. The results showed the prototype SCADA system that was built was able to control sources for lighting and fans both locally and remotely through a mobile or PC in real-time with an average control time of 200 ms.
Design and implementation of digital library at Sharia and Law Faculty UIN Sunan Gunung Djati Bandung
Authors: Sumardi D , Radiana A , Rosadi A , Anwar S , Opipah S , Hamidi E A Z
Published: March 2021

The development of communication and media information technology makes an impact on how people can access information through various media, including libraries that store a collection of information stored and electronically accessible through a digital library. The Faculty of Sharia and the law of UIN Sunan Gunung Djati as a higher education institution answered the challenge with the development of this information and communication technology to provide this information and communication-based service by developing digital libraries geared towards improving the library service process with good quality and speed, as well as improving the effectiveness and efficiency of the library’s governance to facilitate the teaching and learning process for students. Open Source Software (OSS) is digital library web based at the Faculty of Sharia and Law is designed and implemented to fulfil the library automation in which small or big scale used SliMS.
Ultrasonic sensor for monitoring corn growth based on Raspberry Pi
Authors: Latifah A , Ramdhani W , Nasrulloh M R , Elsen R
Published: March 2021

For measuring plant height, an automated system as an indicator in the growing plant has developed in a modified micro propagation system. In the agricultural sector, there is some kind of work that needs monitoring, especially on corn. The monitoring will be used starting from the height measurement of plant manually or physical documentation condition from a plant using human resources. To capture and deliver the data by the farmer manually done and has to be informed quickly, then data from the farmer will be delivered to The Coordinator of Farmer. There is always occurred a problem with providing the data manually, more time is needed, and the accuracy of data not good enough. Because of this case, there is a required technology that can help this kind of work. The ultrasonic sensor as an electronic component is being used for the height of corn plant measurement automatically under the Raspberry Pi controller. The component work is being controlled by Raspberry Pi for how the system is working and deliver the data. The process of transmitting data will use Local Area Network (LAN) on the same IP Address. The monitoring results can be used as a reference regarding the health of the plant being monitored. This system can monitor the growth of corn, whether healthy or there is a problem, so that countermeasures can be taken more quickly and precisely.
Real-time Air Quality Index monitoring experiments using SDS011 sensors and raspberry pi
Authors: Kurnia D , Hadisantoso F S , Suprianto A A , Nugroho E A , Janizal J
Published: March 2021

This study aims to propose a real-time Air Quality Index (AQI) monitoring using SDS011 sensors and raspberry pi as a server to detect Particulate Matter (PM)2.5 and PM10. To calculate the AQI standard values, we refer to BMKG as the board responsible for regulating it. We collected data on the campus area close to the textile industry area in Purwakarta, West Java, Indonesia for 1440 minutes. From the experiments, the results of the AQI value for PM2.5 are between 66-110 or equivalent to 19.1 to 39.7 ug / m3, while for PM10 between 26-70 or equivalent to 23.1 to 43.9 μg / m3. This value shows the performance of the SDS011 sensor can work well. Furthermore, to be publicly accessible, the AQI and PM values are sent to the web every minute without having to refresh the web page. For further development, it is possible to make a low-cost portable monitoring device using SDS011 sensors and raspberry pi that can be placed in areas considered pollution-prone as a warning system when pollution has passed the permitted threshold.
Gain enhancement by using combination slot techniques for millimeter-wave 5G antenna
Authors: Sandi E , Maruddani B , Betakore S A
Published: March 2021

This research aims to increase the antenna gain by adding U-slot and Y-slot and using the air gap method at millimeter-wave frequency 28 GHz. In the previous studies have shown an increase in antenna gain by using additional slots on the microstrip patch antenna, such as the U-slot, V-slot or Y-slot method. The air gap arrangement on the double layer substrate antenna also has an impact on increasing the gain. For this reason, this study carried out the development of the design of the microstrip antenna structure with the addition of U-slots and Y-slots as well as the adjustment of the distance between the two substrates, so it is expected to significantly increase the antenna gain. This research was conducted using quantitative methods through calculating the design, simulation, and fabrication of the combination U-slot and Y-slot structures and arrangement the distance between two substrate layers. The antenna design uses the Rogers RT5880 substrate material with a dielectric constant (ε_r) = 2.2, and h = 0.787 mm with dimensions 18.5 × 31.5 mm. Simulation and measurement results show that the proposed combination method can increase the millimeter-wave antenna gain significantly and better than the results of previous studies.
Arduino-based soil structure detector using geophone
Authors: Sishananto C A , Priramadhi R A , Murti M A
Published: March 2021

Because of technology development, the needs for energy are increasing. Earth provide energy source by means of oil, gas and coal, buried beneath ground soil. A tool that can detect soil structure and material before drilling is needed. Each material has a different density; the difference in density produces a back effect. Geophones can be used to detect differences in material that is below the surface of the ground. This is done by carrying out artificial vibrations and receiving these vibrations with the geophone. To measure the vibrations that will be captured by the geophone, it begins by arranging the geophone configuration to be placed in a straight line with the wave source. The data obtained from the survey is the wave travel time from the source to each geophone indicated in the wave traces. This research concludes that a geophone sensor that can read the speed of waves in passing through stone, split stone and sand. Each medium produces a different speed - the denser the density of the medium, the faster the velocity of the wave propagation through it. In this final project the fastest is split stone with 1.62ms, brick is slightly slower with 4.02ms, and sand is the slowest with 15.86ms.
Population and attack intensity of Leaf Sucking pests during plantation initiation of three white potato (Solanum tuberosum L.) varieties in medium latitude, East Lombok
Authors: Sarjan M , Nikmatullah A
Published: March 2021

Potato (Solanum tuberosum L.) is increasingly important crop in Indonesia. Current potato plantation in Indonesia is mainly undertaken in high land areas. However, limited availability of suitable areas limits the production, and therefore extension of production to a lower latitude is needed. Successful plantation in medium latitude may include selection of suitable variety and management of major potato pests. The aim of this investigation was to find out the species of Leaves Sucking pest of three white potatoes (Solanum tuberosum L.) and its population and attack intensity in medium latitude., East Lombok. The method used in this research is descriptive method with survey technique and data collection in the field. The results showed that five species of leaf sucking pests obtained during the plantation, i.e. Bemicia tabaci, Aphid spp., Thrips palmy, Planococcus sp., and Tetranycus spp. Bemicia tabaci, Aphid spp., Thrips palmy, and Planococcus sp were observed in all varieties while Tetranycus spp was obatined in Granola variety only. In addition, the highest population and attack intensity of sucking pest was found in McRusset variety at age 9 weeks after planting (wap), followed by Bliss and Granola variety. In all potato varieties, the dominance of leaf-sucking pests was Aphids spp. with abundance equal to 77.36%, 78.70%, and 83.81% for Blis, McRusset and Granola varieties, respectively.
Effect of biofertilizer on growth and yield of carrot (Daucus Carota L.) plants in different latitudes of Lombok Island
Authors: Nikmatullah A , Khairunnisa N , Amalia R , Zawani K , Sarjan M
Published: March 2021

Carrot is an important sub-tropical vegetable, and in the tropics it is commonly cultivated in high elevated mountainous areas to provide suitable environment (particularly temperature) for the optimum growth and productivity. Availability of suitable cultivation areas in Indonesia is limited while demand for the crop is increased. This research evaluated growth and yield of carrot in warmer temperature of lower land elevations, and examined capability of biofertilizer to increase growth responses and yield of the crop under sub-optimal temperature conditions. The first and second experiments were conducted in medium latitudes of 650 m above sea level (asl) and 550 m asl, while the third experiment was conducted in low land of 170 m asl. The experiments compared growth and yield of carrot plants with biofertilizer and without biofertilizer applications. The growth and yield of carrot were enhancing by biofertilizer application when planted in ca. 650 and 550 m asl. The biofertilizer-treated plants were taller, had a higher number of leaves, higher yield, carrot diameter and sweater than non-treated plants. In low land, however, biofertilizer bio-EXTRIM had no effect on plant growth and yield but the carrots in biofertilizer treated plants were sweeter than non-treated plants.
The role of physical factors on the existence of insect pests in the corn warehouses in Sumbawa regency
Authors: Zulkarnain M , Sarjan M , Tarmizi T , Darmanto D
Published: March 2021

The Physical factors of the warehouse must be the main concern in order to optimize storage capacity and maintain commodity quality during the storage period. This study aims to identify pests and assess several physical factors of corn warehouses (such as geographical location, microclimate, quality of storage materials, the physical condition of warehouses, and control efforts) related to the presence of pests in the warehouse. This study was conducted in May up to September 2019. This study covers three regions in Sumbawa Regency (Eastern, Central, and Western). The process of identifying pests is carried out at the Biology Laboratory, Faculty of Mathematics and Natural Sciences, University of Mataram. The data is processed and analyzed by using descriptive methods with a literature review technique. Direct observation is applied in this study for data collection and sampling. The results show that the physical factors of the warehouse support the existence and development of pest populations in the corn warehouses. Furthermore, the data show an increase in population and there are 16 species of pests found in corn warehouses.
Gap analysis of environmental licensing on oil palm plantations in eastern part of South Sumatra Province
Authors: Komarudin N A , Hariyadi H , June T
Published: March 2021

The purpose of this study is to examine the gap analysis of environmental licensing both environmental permits, business licenses, and certification of oil palm plantations and their implementation in the field. This research is conducted in the eastern part of South Sumatra Province, focusing on six private companies in the field of oil palm plantations. Although the area has environmental management policies and regulations, many environmental problems still occur. This is indicated because there is a gap between the development of environmental policies related to licensing and their implementation in the field. The study is carried out using gap analysis method which is a common and simple technique in the evaluation of public policies. The results showed a gap value of less than 0.5 which indicates that the companies have implemented and complied in conducting business activities that refer to applicable environmental policies with the fulfilment of location permits and business licenses. It also signified that all companies have fulfilled the environmental permit component properly. However, there is a gap in terms of ownership of environmental certification. While almost all companies have already acquired ISPO (Indonesia Sustainable Palm Oil) certification, the government needs to provide assistance to companies to increase the company’s readiness to complete certification.