bluuebunny/crossref_metadata_2025_split huggingface dataset:
Equipment Replacement Analysis from Manual Line to Automatic Line in Palletizing Activities: A Case Study
Authors: Susanti S D , Sutopo W , Ngadiman N H A 
Published: March 2021

Abstract
A decision situation often encountered by a company is whether an existing asset should be retired from use, continued in service, or replaced with new technology to improve productivity and competitiveness. The purpose of this paper is to present an equipment replacement analysis, an electronic components company. This study aims to analyze three proposed robots to automate the production line as a challenger versus an old manual production line as a defender in palletizing activities. We offered both Market and Technical analysis as well as investment analysis for evaluating an automatic line. Data are analyzed, and four methods are considered for determining project feasibility, namely NPV, IRR, Payback Period, and CBA. According to the data analysis, it is found that Borunte’s robot is the best alternative compare with the others. The proposed framework of equipment analysis seems to be helpful to the company to solve equipment replacement studies.
Indicators of Smart City Using SNI ISO 37122:2019
Authors: Kristiningrum E , Kusumo H 
Published: March 2021

Abstract
In this digital age, many cities compete to invest significantly in designing and developing smart cities projects. In line with this, the development of various indicators that can later be used to measure and evaluate the performance of smart cities is also being developed. Standards are interpreted as a single language that must contribute to supporting the development and assessment of this smart city. The purpose of this paper is to inform the indicators for developing smart cities in supporting sustainable development programs. The method used is a descriptive analysis from secondary data by identifying indicators determined in international and national standards. Found 4028 ISO standards that can be implemented directly to achieve the goal of sustainable development. In terms of support for smart city development, ISO and SNI have issued standards that set 20 sectors and 81 indicators that can be used as guidelines in developing and assessing the maturity of smart cities. There are 7 clauses have been identified in SNI ISO 37122 which are basic mandatory services, and other clauses are additional services Smart city development programs are also supported by various types of regulations from the government, so an assessment scheme approach is needed to see the maturity of smart cities that are evaluated. Further research also needs to be planned and conducted to find out how to implement the identified indicators. With these many indicators, it is also important to determine which steps are the priorities for realizing smart city development.
Strategic Information Systems Planning for Higher Education in Uganda
Authors: Lynn N D , Emanuel A W R 
Published: March 2021

Abstract
Strategic Information Systems Planning (SISP) system is very crucial for service operations and competencies in Higher Education Institutions. Some studies show that SISP enhances competitiveness and improves operational efficiency. Currently, many Institutions of Higher Education all over the world are faced with a lot of significant problems that have hindered their implementation of useful programs such as strategic information systems that would promote quality teaching and learning. Strategic information systems planning is a very important part of the education sector since it aligns Information Technology with business structure, and this helps organizations to quickly reach their desired goals in the shortest time possible. This research aims at introducing the ASWOT analysis method to implement strategic information systems planning in Ugandan Higher Education. This paper benefits Ugandan university leaders and strategists by increasing the awareness and understanding of SISP and its implementation to promote Higher Education systems.
An Optimization Model of Nurse Scheduling Using Goal Programming Method: A Case Study
Authors: Ariyani Meidi Putri , Rosyidi Cucuk Nur , Aisyati Azizah 
Published: March 2021

Abstract
Nurse scheduling problem involves assigning of each individual nurse in the hospital so that a series of tasks can be completed. To increase patient satisfaction, skilled and disciplined nurses are needed. In the field of health care, nurse scheduling is a challenging activity because of the different levels of nurses needed on different shifts and days. However, it often happens where a number of nurses assigned do not meet the specific needs of nurses so that the performance of nurses at each shift is not optimal. In this paper, an optimization model is proposed using goal programming method to determine the optimal schedule using Lingo 11.0 software. The model is implemented in the Yustisia Room, a special room for treating covid-19 inpatients in Universitas Sebelas Maret Hospital. The results of the optimization showed that all conditions that need to be achieved in scheduling which previously unfulfilled in manual schedule, such as the minimum requirement number of senior nurses and male nurses in each shift can be fulfilled. For additional target, which is total working days, the proposed model can produce a better schedule for regular nurses and better assignment patterns for all nurses, where all regular nurses have the same total number of working days, which is 17 working days.
Collaborative Robot Safety for Human-Robot Interaction in Domestic Simulated Environments
Authors: Kaonain T E , Rahman M A A , Ariff M H M , Yahya W J , Mondal K 
Published: March 2021

Abstract
Human-robot interactions carry several challenges, the most important being the risk of injury to the human. In industrial robotic systems, robots are mostly caged and isolated from humans in a safety guard environment. However, as time has passed, the use of domestic robots has emerged, leading to a high need in research on robot safety in domestic settings. Human-Robot collaboration is still in an initial stage; thus, safety assessments in domestic environments are critical in the field of collaborative robots or cobots, with simulations being the first stage of research. In this study, a preliminary investigation on the simulation of human’s safety throughout human-robot interactions in home surroundings with no safety fence is presented. A simulation model is designed and developed with Gazebo in the Robot Operating System, ROS-based, to simulate the human-robot interaction. In the robot trajectory, safety interaction can be simulated. In one example, the robot’s speed can be reduced before a collision with a human about to happen, and it can be minimized the risk of the collision or reduce the damage of the risk. After the successful simulation, this can be applied to the real robot in a domestic working environment.
Development of Utilization Alkali-Treated Bamboo Fiber as a Strengthener in Thermoset and Thermoplastic Composites
Authors: Roni K , Raharjo W W , Ariawan D , Ubaidillah  , Arifin Z 
Published: March 2021

AbstractThe increasing concern over environmental problems and the demand for renewable raw materials continues to increase, making researchers must find the right solution to overcome these problems. One solution is to reduce the use of synthetic fibers, which can replace natural fibers. This article is to review the use of bamboo fiber as a reinforcement to improve the physical and mechanical properties of composites, starting from the manufacturing process to its future potential. The matrix, which usually used as a binder of bamboo fiber, is thermoset and thermoplastic. As time goes by, the matrix becomes more popular. The method of making composites with Hot Press has a significant effect on composite results. The preparations and parameters involved during the process of making bamboo fiber composites with thermoset and thermoplastic matrices have a considerable impact on the results of the physical and mechanical properties of composites. Alkali treatment can eliminate hemicellulose, lignin, wax, and oil, which cover the surface of the outer walls of natural fiber cells and increase the surface roughness of the fibers, thereby increasing the bond between the polymer and the fiber. The determination of fiber composition variation plays a significant role in the physical and mechanical properties of composites. Too much pressure can damage the fiber, while too low pressure results in poor lamination consolidation. The processing temperature results in a better interface wetting between the fiber and the matrix. Holding time produces a more reliable bonding interface by removing the air gap that induced during pressing between the fiber and the matrix, thereby increasing tensile strength and modulus. The utilization of bamboo fibers to reduce synthetic fibers has opened opportunities for academics and industry to design sustainable modules to utilize bamboo fibers in the future. Making bamboo fiber-based composites with thermoset and thermoplastic matrices can reduce environmental problems and can be developed into effective biocomposites. Added with the advantages of thermosets and thermoplastics such as resistance to heat and chemicals even in extreme environments, flexible and recyclable, so that it has good potential in the future.
Parameters of Savonius Type Hydrokinetic Turbine to Enhance Efficiency
Authors: Handoko R , Hadi S , Danardono  , Ubaidillah  , Arifin Z 
Published: March 2021

Abstract
Increasing energy requirements accompanied by high fossil fuel emissions will lead to energy crises and the greenhouse effect in the future. These factors encourage the development of renewable energy. Hydropower can be one alternative energy to meet the energy demand. Hydrokinetic turbine is one of the latest technologies that utilize energy from water flowing in rivers, waterways, drainage in buildings, etc. This paper presents a review of hydrokinetic theory as an energy conversion system from flowing water with reference to the wind energy system. The most discussed type of turbine is a hydrokinetic savonius turbine with a description of the benefits, weaknesses, strengths, and conditions according to the application. Hydrokinetic savonius turbine is the most discussed turbine because of the ability of this turbine to work at low fluid flow rates in rivers and waterways. But the weakness of Savonius turbine is that it has low efficiency. Several experimental studies and numerical calculations by varying the design and parameters of the turbine have been carried out to improve its efficiency. The following parameters have been explained which affect the performance of hydrokinetic savonius turbines which are expected to be useful for future research to improve turbine efficiency.
Photovoltaic Performance with Heat Sink from Copper and Aluminum Material
Authors: Maulana A , Rachmanto R A , Hadi S , Arifin Z 
Published: March 2021

Abstract
Energy becomes a basic human need, so energy reserves are needed. Solar energy is the solution to overcome this problem. Solar energy can be converted into electrical energy through PV panels. However, high temperatures can make PV panels do not work optimally. One way to reduce the temperature is to use a heat sink. The materials used are PV panels without heat sinks, PV panels with aluminum heat sinks, and PV panels with copper heat sinks. This research shows that with the same intensity of 1100 W/m2 PV panels without heat sinks, PV panels with aluminum heat sinks and PV panels with copper heat sinks have an efficiency of 8.76%, 10.27% and 11.14%. The result of temperatures 69.7 °C, 60.8 °C and 52.7 °C and the maximum power produced is 35.19 W, 40.17 W and 43.58 W. The results showed that the average working temperature decreased 8.9 °C and 17 °C, thereby increasing output power by 4.98 W and 8.39 W and increasing efficiency by 1.51% and 2.38% without using a heat sink.
Design and Simulation Multilevel Boost Converter Using PI Controller Ziegler Nichol Method
Authors: Kurniawan M B , Efendi M Z , Murdianto F D 
Published: March 2021

Abstract
This Paper is explain about how to design a Multilevel Boost Converter (MLBC). This Converter is a Boost Converter with an upgrade of Parallel Diode Circuit and Capacitors Circuit. MLBC (Multi Level Boost Converter) have more advantages with low voltage input change to high voltage output. The Principle of MLBC is like the Boost Converter, but they have high ratio conversion without adding transformation for step up the voltage, the setting Output will stabilize if they always get the minimum input range for reduce the drop voltage from input who used Solar Panel, it is used MISO (Multiplied Input Single Output), the MISO contains Solar Panel and Battery with the parallel circuit set. DC Micro Grid using as DC BUS for distributed the voltage from the source to load for the maximum output power it used 100-200 Watt. The Method of control voltage it used PI - Ziegler Nichols-1 for controlled the Multi Input Single Output (MISO) block, the first control used to make the input of MLBC stabilize for 30 - 40 V being step up to 200 - 250 Volt. The Load of DC BUS example: Inverter, 3 Phase Motor, Led DC, Battery Energy Storage at this project used a inverter with 3 phase motor for load of converter. The Maximum Output Power from a design of this converter is 234.87 Watt according the DC load and the efficiency of converter is maximum 86 %.
Design and Implementation of Bipolar Sepic-Cuk Converter with Fuzzy Logic Control for Battery Charging Application
Authors: Triandy D J , Wahjono E , Murdianto F D 
Published: March 2021

Abstract
This research presents the design of an electricity distribution system with a solar cell source that is applied to the battery charging process. The charging setting uses a modified DC-DC converter configuration from the modified Sepic and Cuk converters. With one Bipolar Sepic-Cuk Converter voltage source produces two outputs of the same voltage value with different polarities. The method applied is constant voltage, where the voltage generated by the solar panel will always be constant and the same in accordance with the setpoint specified in the charging process. The control used is a fuzzy logic control that functions to regulate the PWM output signal by getting the duty cycle value. The voltage sensor is used as feedback from the control to be processed by the microcontroller so as to produce a PWM signal which will be used to regulate switching on the Bipolar Sepic-Cuk converter circuit. The output voltage of the converter has been achieved with fuzzy control with irradiation and temperature variations. The results of the output voltage can be maintained at a predetermined voltage. The error percentage of the generated voltage is equal to 0.14 - 0.5%.
Performance Evaluation of Fuzzy-PID in Speed Control of Three Phase Induction Motor
Authors: Maghfiroh H , Saputro J S , Adriyanto F , Sujono A , Lambang R L 
Published: March 2021

Abstract
Induction motor (IM) is one of AC motor type which mainly applied for adjustable speed applications and consumes approximately 60% of the total industrial electricity consumption. IM is chosen due to its simple structure, reliability, high efficiency, and low cost. There are two main methods in speed and torque control of IM which are scalar control and vector control. Vector control is divided again as Field Oriented Control (FOC) and Direct Torque Control (DTC). In this research, DTC is chosen due to its simplicity compared with FOC. PID is reported that used by 90% industrial section because of its simplicity, applicability, and reliability. Fuzzy Logic Control (FLC) is one of the artificial intelligences that can be used to online tune the PID parameters. The simulation of speed control of the IM base on DTC has been carried out. The simulation result shows that in both no-load and loaded tests, Fuzzy-PID gives better results in speed tracking. In terms of control energy, Fuzzy-PID consumes more energy by 4.5% with better performance in the no-load test. Whereas for the loaded tests, it also has better performance with less energy by 1.03 % compared with PID.
Design of Microcontroller-Based Potentiostat for Determination of Ethanol Integrated with Smartphone through Internet of Things
Authors: Farhan I M , Aldy M N , Nabillah J , Adriyanto F 
Published: March 2021

Abstract
Ethanol is the most alcohol used in daily life. Ethanol can be found in drinks, cosmetics, medicines, flavorings, and many more. Each product requires a different concentration of ethanol. Ethanol concentration can be measured using conventional alcohol meter, but requires a large number of samples and mistaken from reading the measurement can occur. This study aims to make a potentiostat based on the microcontroller to determine ethanol concentration that is easy and accurate. Potentiostat consists of several components of resistors, capacitors, operational amplifiers, and Arduino Mega 2560. Measurements were carried out using the electrochemical analysis fixed potential amperometry which the fixed potential was determined by linear sweep voltammetry. Carbon (C) is used on the working electrode and counter electrode which act as the sensor. From the test results obtained a negative relationship between the increasing concentration against current with a correlation coefficient 0.9998. The level of precision and accuracy of the device that has been made shows good results. The level of precision represented by the mean relative standard deviation (MRSD) obtained a result of 95.18%. While the accuracy value represented by the root mean square error (RMSE) results of 97.08%.
Prototyping Adaptive Cruise Control on Electric Motorcycle
Authors: Purba D A , Nizam M , Maghfiroh H , Putra M R A , Inayati  
Published: March 2021

Abstract
Electric motorcycle is one of the vehicles that can operate using alternative fuels, namely with electrical energy. Travel between cities over great distances, of course this results in a high risk of accidents. Additional features are needed that can warn and stop the electric motorcycle before crashing into other vehicles in front of it. Cruise Control is an automatic technology that is embedded in the automotive system to maintain a constant speed. Prototype refers to the physical and digital representation of pre-production models. This research focuses on applying ultrasonic sensors as distance detectors for the prototype adaptive cruise control system which will be installed as an additional feature on electric motorcycles. The method used in this research starts from simulating a series of systems on Proteus 7.9 software, then designing electrical and software devices on prototyping, and testing. The results obtained by adaptive cruise control mode by testing the variation of distance to PWM duty cycle changes in the simulation compared to prototyping, found an error of ± 1.53%, this shows the prototype Adaptive Cruise Control can work well.
Performance of 5G-NR under Semarang Channel Model
Authors: Wardihani E D , Astuti H W , Suharjono A , Pramono S 
Published: March 2021

AbstractTo support Twenty-Twenty Society and industrial revolution 4.0, 5G-NR becomes the solution for reliable communication. 5G-NR uses High Frequency which is sensitive towards nature and thereby need to understand its performance under real-field environment in Semarang, Indonesia. The aim of the research is to proof whether 5G can work in Semarang seen from outage probability and Bit Error Rate under three conditions for very heavy rainfall, moderate and without rainfall. This research method used channel model experiment using NYUSIM and MATLAB with CP-OFDM without channel coding with Rate in 1. Four environment parameters used as the data collection, namely temperature, humidity, rainfall rate and air pressure from Indonesia official department of Meteorological, Climatological and Geophysical Station (BMKG) of Semarang City and through sensors. The results obtain the information that the channel can work under the three conditions. It was also performed additional information about water vapour as the atmospheric attenuation due to absorption as the consideration of planning reliable communication in 22 GHz and 60 GHz. Besides, 5G-Complex BPSK generated better performance than BPSK One-path Rayleigh Fading.
Optimization Stacker Reclaimer Slewing Bearing Assessment in Mechanical Inspection Combining with Advance Technology of Vibration Analysis
Authors: Sasongko A B , Priyohutomo B , Sulistyo D 
Published: March 2021

Abstract
SKF Mechanical Service, Engineering Knowledge Company was entrusted to perform Life Assessment Of Slewing Bearing At Stacker Reclaimer for further Improvements Plan at one Power Plant Industry, suggest on best methodology and technique to be implemented in maintaining the reliability of slew bearing at the critical equipment in better maintenance functions, reliability and cost-effectiveness. SKF were awarded the work order for the assessment and recommend improvements plan with respect to the following scope of work. The objective of the assessment is to identify current condition of Slew Bearing installed at the critical equipment of Stacker Reclaimer and a way forward to prevent it from the catastrophic failure for another 15 years operation (expectation). The result of the mechanical service assessment is showing the evidence wear phenomena occurrence, as one of mechanical equipment/asset failure mode compared to suitable value of permissible wear or bearing height reduction, bolts, nut & washer integrity compared to OEM specification, gear drives backlash according to standardization and bearing grease contaminant observation in relation to Fe, PQ and Cr wear percentage, vibration pattern & level for conformance checking and recommendation maintenance procedure for improving bearing life.
Flutter Analysis of Last Stage Steam Turbine Power Plant Blade Through Transient Blade Row Simulation
Authors: Laksana A R , Kokong A M , Agus Sigit P , Widjajanto T , Setiawan H , Djunaedi I 
Published: March 2021

Abstract
Flutter phenomena becomes significant in response with turbomachinery design trends that prioritize efficiency. Especially in later stages of steam turbines, the slender profile of the blade becomes more prone to unstable dynamic aeroelasticity. Predicting the potential of flutter on a turbine blade can be done by constructing aeroelastic stability curve with evaluation of aerodynamic damping value under different rotor blade position, relative to the stator blade (inter blade phase angle). In this study, combination of steady Computational Fluid Dynamics (CFD), structural Finite Element Analysis (FEA) and transient blade row CFD was carried out using ANSYS 2019 R2 with the end goal of constructing aeroelastic stability curve and analysing the flutter risk of a 350 MW last stage steam turbine blade. At inter blade phase angle position of -180°, -70°, 0°, 77° and 180°, the system are exhibits positive aerodynamic damping values which indicates low to none flutter potential.