bluuebunny/crossref_metadata_2025_split huggingface dataset:
Solar Photovoltaic Application for Contributing Power Supply of Community Clean Water Provider
Authors: Ulinuha Agus , Prabowo Satrio Nur 
Published: April 2021

Abstract
The need of clean water for human daily life is about crucial. Due to the inadequate capability of government water supply company, it is becoming common for a community to establish their own water supply system. This includes a deep well, high water reservoir, and submersible pump. The pump is normally supplied with power from electricity grid. The extensive availability of sunlight may be used to generate electric power using Solar Photovoltaic (PV) panels for supplying power for the pump. This paper presents the application of Solar PV panels to generate power that contributes power for the pump at the system of clean water provider. A 1000-WP solar panels system is employed to generate the voltage and a 60-A MPPT is used to regulate the voltage for supplying 2 x 150-Ah Li-ion battery. A 3000-W inverter is used to provide AC power for 3-hp 220-V pump. Considering the capacity of Solar PV panels and the continued availability of sunlight, the hybrid supply for the pump is established. This integrates the supply from solar PV and utility grid controlled with Automatic Transfer Switch (ATS). This determines the power supply for the pump either from Solar PV or electricity grid. This system is implemented in the community water supply at Sidomulyo, Krikilan, Sragen. The hybrid strategy enables solar PV to contribute supplying power for the pump and reduce the need of power from utility.
The damage trees study for a good and save roadside greenery planning in Surakarta City, Central Java
Authors: Indrawati I. , Nurhasan N. 
Published: April 2021

Abstract

Purpose: This research question is ‘how to plan a good and save the road side greenery in Surakarta?’ The research objectives are: Identification of the trees characteristics (type and size); Identification level of the health trees, and Trees location. Methodology: This research used categorized methods by health of tree, that is: health, little damage, moderate damage and heavy damage. The research location at Slamet Riyadi street, Jenderal Sudirman street and Urip Sumohardjo street at Surakarta City. Results: This research has built a Tree Inventory Application, named SIPPOHON. Through SIPPOHON trees can be inventoried by the name, type and characteristics. Tree location is integrated in a global positioning system (GPS); The Polyalthia longifolia, Mangifera kemanga, Diospyros blancoi have a strong endurance tree; Pterocarpus indicus, Erythrvna, Manilkara kauki, Langerstroemia and Casuarina tend to be damaged or unhealth; Some forms of tree damage are caused by: hole and trunks hollow; mechanical damage (scratches and cuts at the tree until the cortex); the brittle stems caused by pest attacks; swelling of the stem; the dead of partial canopy; trees tilted into the electricity grid; and roots appear to the surface of land. Applications: The result of the research are an SIPPOHON application to manage the green roadside, especially: Treatment of pest are needed to prevent the spread of disease and Routine maintenance and monitor the tree condition.
Flood Hazard Assessment with High Spatial Resolution Under Climate Change Scenario
Authors: Ikhzan Jazaul , Apip  , Fakhrudin M , Subehi Luki , Yamamoto Kodai 
Published: April 2021

Abstract
One of the important components in flood disaster risk reduction is the availability of spatial information on flood risk that include: (1) flood hazard component such as flood discharge ( q), flood depth (h), flood extent (A ), and flood duration (t), and (2) the loss value due to flood which could be quantified in the form of damage costs (θ). Change in the value of risk f (h, A, t, θ) was hypothesized to be sensitive to climate change and other environmental factors that exist at a river basin area. Therefore, it is quite important to control the flood disaster risk as a part of adaptation programs to the climate change impacts and to deal with the increasing pressure due to anthropogenic activities. Additionally, to support the action plan and to increase the understanding and awareness related to the flood disaster mitigation, spatial information on flood risk which having high resolution and precision is required. This study aimed to quantify the spatial information of flood hazard with high spatial resolution. Two Dimensional (2-D) flood-modelling system (e.g., rainfall-runoff-inundation) at the river basin scale has been used as the main method in quantifying the flood hazard dimension. Furthermore, this study was focused in the Batanghari River basin, Sumatra and 13 river catchments flow out through the Jakarta Capital City of Indonesia. Obtained hazard information forms the basis for long term management decisions on improving operational flood risk management, especially in order to cope with impacts of the future climate change.
Ferrate As an Advance Oxidator Materials (AOM) for Removing the Congo Red Dyes: Study of Optimization and Kinetics Degradation
Authors: Fatimah Siti , Widyawati Septi , Jannah Nurul , Mei Ayu 
Published: April 2021

Abstract
Ferrate (VI) as an alternative oxidizing material that has a multifunction. This species is able to degrade Congo Red (CR) dyes. The perfomance of ferrates in degrading CR are by free up of hydroxyl ions from the active group then initiating active groups on the CR species. This initiation will cause the CR oxidation reaction to become a simpler compound that is easily biodegradable. The stages of this study were ferrate synthesis, characterization, optimization of the volume of Fe(NO3)3, optimization of pH, and optimization of ferrate(VI) molar ratio with CR. Ferrate synthesis is carried out by reacting a solution of Fe(NO3)3 and oxidizing NaOCl in alkaline conditions. This synthesis produces crystals which formed to sodium ferrate (Na2FeO4) then tested using XRD. The XRD test showed that a good results at a value of 2θ = 32°. Dyestuff oxidation reactions carried out by batch systems and non-oxidized dyes were analyzed using spectrophotometric methods. The results showed that sodium ferrate can effectively oxidize CR dyes with the percentage of degradation of 98.2% at the optimum pH conditions of 9.2, the ratio of the concentration of CR to ferrate was 1:5 and the oxidation time was 20 minutes. The CR oxidation reaction using ferrate (VI) in this study is a first-order reaction with an R2 value of 0.979 and a reaction rate constant of 8.95 x 10-2 mol/sec.
The Relationship Between Frequency of Accident and Roads Geometric Design Consistency in NTB Province
Authors: Elfandari Amadea , Siregar Martha Leni 
Published: April 2021

Abstract
Investigate and measure the relationship between accident frequencies and the consistency of road geometric designs. Methodology: Several accident prediction models from straight section, curve section, and road segment data from variables that combine design consistency. Poisson and negative binomial regression approaches are used for model development. The model obtained can later be used as a quantitative tool for evaluating the impact of design consistency on road safety. From the model obtained, from all the results of the model, it was decided to use the model of negative binomial regression because the model has proven to be undispersed, so that the model results obtained are better than poisson regression. Obtained the final model with exponential and power forms. In addition, the model of the combined data results represents more existing field data, this is caused by several factors that can affect these results. Then, it was found that the model obtained could consider design consistency so that the model could identify inconsistencies better and accurately reflect the resulting impact on safety. Many road conditions in Indonesia are still incompatible with existing geometric road design standards. Consistency in the geometric design of the road must be considered, given that all elements in the geometric design of the road have an influence on the number of accidents that occur on the road. So more consideration is needed for new roads that are designed according to existing standards so as to produce a good road, hoping to reduce the number of accidents that occur significantly.
Overview of Municipal Solid Waste Generation and Energy Utilization Potential in Major Cities of Indonesia
Authors: Qonitan Fatimah Dinan , Wayan Koko Suryawan I , Rahman Ari 
Published: April 2021

Abstract
Problems in municipal solid waste sector remains a challenge to solve for the government of Indonesia. Processing waste into fuel, or known as refuse derived fuel (RDF), are some of the technological alternatives considered to tackle the waste problem. This paper aims to describe recent information on municipal solid waste generation in major cities of Indonesia, including DKI Jakarta, Tangerang, Bekasi, Bandung, Semarang, Surakarta, Surabaya, Makassar, Denpasar, and Palembang, and to overview its potential for energy utilization as refuse derived fuel (RDF). Municipal solid waste generation in Indonesia was assessed based on sources, generation rate, and composition data by year of 2018. Data was obtained from the State Ministry of Environment and Forestry’s (SMEF) national inventory of waste generation website, the National Waste Information System (SIPSN). To assess refuse derived fuel (RDF) potential, waste characteristics such as calorific value, water content, volatile content, ash content is evaluated for each composition. In those cities, municipal solid waste generation rate was 0,69 kg/capita-day, with 1780 tonnes/day generated on an average per city. Household sector was significantly the largest source of municipal solid waste generation in all cities in Indonesia, which contributed 44-75% to total waste generated. The composition of municipal waste consists of 43.78% of food waste, 16.05% of paper, and 14.08% of plastics. The result of calculations showed that, mixed municipal solid waste from those cities has high water content with average of 49.94%, high volatile content with average of 53.34%, and low ash content with average of 6.12%. Calculated heating value of the mixed municipal solid waste is 9.5 MJ/kg which is lower than standard for refuse derived fuel of 12.56 MJ/kg. Therefore, sorting and pre-treatment mixed municipal solid waste in Indonesia is necessary to meet the criteria of refuse derived fuel material.
The Use of Gaussian Mixture Model for Counting Human Object on Video
Authors: Soeleman Moch Arief , Haq Irfanul , Muslih  , Karis W , R. Anggi P 
Published: April 2021

Abstract
Video monitoring has been widely used in various places, for example, tourist attractions, stations, terminals, offices, supermarkets, minimarkets, and other places. The use of video monitoring has the aim to improve security aspects in a place that is considered quite helpful. The rapid development of technology, video monitoring has been implemented for purposes other than for security, such as people counting systems. People counting to find out the number of visitors in a place or building is a difficult job to do, requires a lot of time and often the data obtained is not appropriate. Gaussian Mixture Model (GMM) is a background reduction method, which is used to identify the background and foreground. Background reduction is an approach that is widely used to detect moving objects on video from static cameras. While blob detection is detecting a group of pixels connected in an image that has a different colour (white or black). Blob is used for object classification, whether the object is a person or not. From the results of system testing shows that counting people can be done well, with an average percentage of 95.83% recall, 94.5% precision and 90.88% accuracy of the entire video test data. The use of GMM in counting people in this study can also count people who carry objects properly as long as they are not drawn as in the morning test video. In addition, this system can store the calculated data.
Enhancing Learning Performance of Students in Higher Education with Adaptive Navigation Support
Authors: Hamzah Almed , Haryono Kholid , Jayadi Puguh , Ningrum Sari Kurnia 
Published: April 2021

Abstract
The study work on the development of a system prototype to aid the students in managing their assignments. The prototype employs Adaptive Navigation Support as an approach in providing personalized recommendation for the quiz that students must work on. With this prototype, the students can manage their quizzes better and complete more quizzes. In addition, the students are able to monitor their progress as well as their performance in particular course. Prototyping methodology was used to develop the prototype in mobile environment.
Mechanical and dynamic properties of composite rubber (RSS and SBR) with waste rubber crumb and copper fiber
Authors: Tirtoputro Shendyanto , Priyosulistyo Henricus , Faizah Restu 
Published: April 2021

Abstract
Waste rubber tire is difficult to decompose by nature, but it can be reused as a part of composite rubber materials. In this research, waste rubber crumb was mixed into Ribbed Smoked Sheets (RSS) and Styrene-Butadiene Rubber (SBR) compound to form a composite rubber. The aim of this research is to investigate the mechanical and dynamic properties of RSS and SBR compounds with waste rubber crumb and copper fibber. For this purpose, another composite material in the form of copper fiber is also added which is expected to increase the damping properties of the rubber even though the mechanical properties of the rubber will decrease. RSS and SBR rubber compounds consist of 25-phr and 50-phr waste rubber crumb. Waste rubber crumb is taken from used vehicle tires with the granular size passes through the mesh sieve number # 100. 5-phr, 10-phr, 20-phr, and 30-phr of copper fibers were added into 25-phr and 50-phr respectively. The copper fiber used is 0.3 ± 0.05 mm in diameter and length to diameter ratio is 40. The results of this study indicate that the addition of waste rubber 25-phr and 50-phr decreases the tensile strength, elastic modulus, and shear modulus but increases the damping properties. The addition of copper fiber 5-phr until 30-phr decreses the tensile strength and elastic modulus but increases the shear modulus and the damping properties.
Development of work breakdown structure standard for safety planning on stadium construction work based on risk
Authors: Anggraini Amelia , Latief Yusuf 
Published: April 2021

Abstract

Purpose: The purpose of this study is to reduce the level of work accidents in stadium construction by developing risk-based work breakdown structures. Methodology: The research methodology includes several stages, namely the literature study, analysis of data archives and previously related project and research, as well as through the validation of experts. Result: The results of this study are WBS standards, implementation methods, activities, resources, potential hazard risks and safety planning using risk-based WBS standards on stadium construction work, as a method in preventing, reducing, eliminating or even nulliying the chance of accident throughout the development of a construction work. Applications/Originality/Value: This research will hopefully provide benefits to the construction world by presenting work accidents prevention methods by incorporating risk elements into each level of project work in the Work Breakdown Structure which will be used as input in the making of a safety plan.
Improvement Palmprint Recognition System by Adjusting Image Data Reference Points
Authors: Kusban Muhammad 
Published: April 2021

Abstract
Nowadays, the palmprint recognition method is an attractive tool for people recognition besides face recognition and fingerprint. To get a good palmprint recognition system requires a series of algorithms that are united and worked together to create a preferred method. The biometric system in palmprint recognition is said to be preferred when the choice of the algorithm applied has the advantage of each phase. Generally, The palmprint recognition system starts from the selection of image filters, image positioning, dimension reduction, and finally, end with the distance method. Image normalization position is a problem for researchers because the palmprint is always moving and shows a curved shape making it difficult for the system in the identification and verification process. For this reason, the research focuses on the selection of orientation scale operator value from the Gabor technique to get the best parameter value for palmprint biometrics. The desired system is when the overall performance of the algorithm used will produce an output with a low EER value and a high level of verification. From the research that has been carried out, the range of 8 × 5 becomes a good alternative for the choice of Gabor value pairs.
A conceptual design of modified Human Factor Analysis and Classification System mobile application
Authors: Salma Sheila Amalia , Pratama Gradiyan Budi , Widyanti Ari 
Published: April 2021

Abstract
This article aims to provide a conceptual design of the medication error identification based on a mobile application using the modified HFACS approach. The conceptual design in this study discusses the user and functional requirements based on the organizational structure and business process of medication prescription. This study used DFD that aims to describe the relationship among the user. Interface and prototype of the application is developed based on a focused group discussion of ergonomics expert. The user involved in the prescription process are the doctors, hospital workers from the pharmaceutical department, and hospital workers from the Hospital Patient Health department. The role of HFACS investigation is played by the patient-health department. The developed interface of HFACS focuses on the evaluation and documentation of medication error cases. This present study is the first study focus on the development of HFACS mobile application in evaluating and documenting medication error.
Optimization of bucket tooth excavator design using topology optimization and finite element method
Authors: Suryo Sumar Hadi , Sastra Rachmat Suryadi , Muchammad  , Harto  
Published: April 2021

Abstract

Purpose: This research discusses the optimization design of bucket tooth on the market to produce a lighter design but still maintains its strength, the type of bucket tooth is Verona PC200. Methodology: The optimization process in a bucket tooth applies the concept of topology optimization. A static linear analysis is performed using the finite element method to see the maximum stress that occurs in the bucket tooth. Then the method is determining the design variable of bucket tooth with applied a manufacturing constraint. Optimization gives the new design. Result: The maximum VonMises value is 403.81 MPa. After that topology optimization is done by selecting several variations of the design area which results in a reduction in mass in first variation of 0.72 kg and the second variation 1.49 kg. The mass reduction causes a change in stress that occurs in the bucket tooth to 451.8 MPa in first variation and 458.6 MPa in variation 2, but the stress is still in a safe condition. Value: Optimization of bucket tooth design in this paper can reduce the cost of production for bucket tooth with considering to keep the strength of bucket tooth.
The Development of Android for Indonesian Sign Language Using Tensorflow Lite and CNN: An Initial Study
Authors: Fadlilah Umi , Mahamad Abd Kadir , Handaga Bana 
Published: April 2021

Abstract
Deaf people in the world have different sign language according to their living place. They tend to use simple sign language to communicate with others. Whereas every country has their own sign language. Usually a country has one national sign language, but there are 2 kinds of sign languages (SIBI and BISINDO) in Indonesia. However, BISINDO (Indonesian Sign Language) had not recognized yet as a formal sign language like as SIBI (Indonesian Sign Language System), it is only a daily sign language among them and with normal people. Thus, researcher propose to promote BISINDO by developing BisAndro (BISINDO using Android) application. At the start, researcher prepare to compare BISINDO systems in cyberspace, develope basic BISINDO website by PHP and MySQL, train some gestures in TensorFlow lite, and make CNN (Convolutional Neural Network) plan before developing BisAndro application. BisAndro application will be built by Python programming, Tensorflow as an image recognition technology, and Android mobile phone as the launcher device. The application is expected can be used by deaf people to communicate with others easily because it facilitates two ways communication through mobile phone. So, the preparation is needed to know about initial requirement of the next BISINDO learning application using Android smartphone in order to be more useful for deaf and normal people directly.
Optimization on The Hydrolysis Process of Cellulose from Corn Husk to Glucose with Activated Carbon Catalyst Sulfonated
Authors: Anggoro Didi Dwi , Buchori Luqman , Djaeni Mohamad , Ratnawati  , Retnowati Diah Susetyo , Hadiyanto  , shidqi Ashar 
Published: April 2021

Abstract
The design of this research consisted of four stages, that is manufacture of catalysts, cellulose hydrolysis process, glucose yield test and optimization process.The research data is plotted in a mathematical model that is optimized using software of Statistica 10 with Response Surface Methodology (RSM) and ANOVA methods. From the RSM method was obtained mathematical equation model for the relationship of the combination of temperature, time and amount of catalyst to glucose levels, that is: Y = -20, 0457 + 5,341x1 -3, 245

x
2
1

+ 6, 471x2 -2,798

x
2
2

+4,697x3 -2,965x2
3 +1,241x1x2 -0,996x1x3 +0,675

x
2
3

. ANOVA method produces a value of determination coefficient (R2) as big 0.91545. In this research, the optimum temperature is at 70°C, the optimum time is at 2 hours, and the optimum amount of catalyst is at 11 grams. The results of glucose yield obtained from the optimal operating conditions is 31%.