bluuebunny/crossref_metadata_2025_split huggingface dataset:
Design of monitoring system for drying and storage of shallot
Authors: Haryanto H , Saraswati I , Ahendyarti C , Rahman A , Oktorida R 
Published: December 2019

Abstract
Thermo electric cooler is an environmentally friendly cooling component because it does not produce harmful substances such as Freon or CFC which is usually produced by refrigerant and air conditioning so as not to damage the ozone layer in the atmosphere of the earth as well as global warming. In principle, TEC has a capability called peltier effect that is the temperature difference when the component is fed by an electric current. On one side of the TEC will absorb the heat and on the other side release the heat, in conditions absorb the heat of the TEC side becomes cold, while the heat-releasing side will be hot. With such unique capabilities, TEC can be applied to an air conditioner and heating device, so it can be used for other purposes or interests and without having to contribute harmful substances to the environment and atmosphere.
Microcontroller-based assistive device for training weak biceps brachii muscle
Authors: Gunadhi A , Mustofa F Z , Agustine L , Pranjoto H , Sitepu R , Yuliati  
Published: December 2019

Abstract
A person with a certain degree of biceps brachii muscle weakness will not able to move the lower hand. The muscle needs contraction and relaxation practice regularly to avoid the condition getting worse. An electromyography-based assistive device has been developed. It uses biopotential signals from biceps brachii muscle when contracted and relaxed to control the elbow flexion and extension movement of the weak hand. The device uses a Muscle Sensor V3 module to sense the muscle biopotential signals, and also an Arduino Nano 3.0 microcontroller module and a servo motor to control the elbow movement. The elbow movement is limited to 90° to its maximum degree of movement at 170°. It is the range of elbow movement that used in a method to work out the biceps brachii muscle. The starting process needs to adjust elbow position manually using potentiometer to 90° angles. This device can work properly when stimulated by the biceps brachii muscle biopotential signals and produce as low as 0,0977V at the input of the internal ADC of Arduino Uno 3.0 when the muscle contracted and lower than that voltage when it relaxed. The device consumes low power to operate at 0.374watts.
Risk-based thinking on calibration and testing laboratory: Current challenge in transition period
Authors: Habibie M H , Basuki B 
Published: December 2019

Abstract
This research was conducted to discuss the application of risk-based thinking concept in calibration and testing laboratories. This research is motivated by the publication of the new edition of ISO/IEC 17025:2017 standard that applies the principle of risk-based thinking. From the results of the JCRB 39/3 resolution, full-implementation of ISO/IEC 17025:2017 standard by calibration and testing laboratories is no more than 3 years after publication. In addition, the National Accreditation Committee (KAN) as an accreditation body in Indonesia requires calibration laboratories and testing laboratories to switch their management system to ISO/IEC 17025:2017 standard starting at 2018. This research is carried out by identifying the risks found in calibration and testing activity. Clause 8.5 of ISO/IEC 17025:2017 is applied to take actions to minimize or eliminate risks that have been identified as preventive or corrective actions. In this research, 5x5 risk matrix is also used by considering the impact and frequency of risks in the calibration and testing laboratories.
Bibliometric analysis of the term ‘Three-Dimensional Concurrent Engineering’
Authors: Ilhami M A , Subagyo  , Masruroh N A 
Published: December 2019

Abstract
Three-dimensional concurrent engineering (3DCE) concept provides a new approach for integrating product, process, and supply chain design. The opportunities to shorten product development lead time and time to market eventually, increase product variant and quality, and reduce product development costs become a concern. However, the 3DCE approach is not yet comprehensive since the researches are continuing and growing. This article provides a bibliometric literature review on 3DCE as a term and concept through mainly Scopus database and Mendeley software for managing and resuming the references. After manual filtering and reading we conclude 39 articles strongly related to the term of 3DCE. Finally, we classified the articles based on its keywords into two clusters of words using VOSviewer software. Moreover, we found that ‘supply chain’, ‘product development’, and ‘product design’ were the most frequently used for keywords, titles, or abstracts that represented the research stream or the researcher’s background.
A Computerized measurement system of machine performance for a textile industry
Authors: Sakti S , Panjaitan A E D , Asih A M S , Sopha B M 
Published: December 2019

Abstract
The increasing development of the textile industries has made the competition sharper. To maintain a competitive place in the market, it is critical for a textile industry to keep their production effectiveness at the highest level. Total productive maintenance (TPM) can be done to improve production performance, both in terms of quantity and quality. How successful the TPM implementation is measured by Overall Equipment Effectiveness (OEE) which shows the effectiveness level of a particular machine. The imbalance pattern between target and actual production in almost all departments in the textile industry encourages OEE analysis to determine the performance of each machine they use. However, operators are facing difficulties in measuring OEE for every machine manually. This study aims to develop a computerized database system to help measure the OEE calculation so it can help the company knows their real-time machine performance. It automates the process of OEE calculation and identify the losses associated with equipment effectiveness. The developed system is validated using the historical operational data of a Spinning Department in a textile industry.
The proposed improvements to minimize potential failures using lean six sigma and multi attribute failure mode analysis approaches
Authors: Ulfah M , Trenggonowati D L , Ekawati R , Ramadhania S 
Published: December 2019

Abstract
PT X is the largest steel industry in Indonesia. During the production process, still have large quantities of waste defect. The purpose of this research is to determine the waste that occurs in the production process, determine the characteristics of deformity or critical to quality (CTQ), determine the sigma value, determine the factors that caused the failure of the production process, and determine the proposed improvement to minimize the failure of the production process. The most dominant types of defects are serrated edge, wavy edge, poor cleanliness, pick up, edge crack, ripple edge, and bad weld. The sigma value of cold rolled coil product is 4, 131 which is included into the industry average of USA (± 4σ). Factors that caused cold rolled coil production process failed based on criteria severity, occurrence, detection, and expected costs by Fuzzy Analytical Hierarchy Process (F-AHP) is material imported from outside with a total weight of 0.087. Proposed improvements done to minimize failure in cold rolled coil production processes are doing trial for products from HSM factory to test or know the slab specifications related to the chemical constituents of steelmaking and adjusting the format (such as thickness, length, width) and steel specifications to corresponding.
Effect of online shopping on consumptive behaviour of female workers in Cilegon, Banten, Indonesia
Authors: Partuti T , Kambuna B N H , Dwiyanti Y 
Published: December 2019

Abstract
This research was carried out as a form of responsibility for the implementation of an internal research grant from Faculty of Engineering, University of Sultan Ageng Tirtayasa on women’s studies. This research is a qualitative and quantitative study to analyse the influence of online shopping on consumptive behaviour of female workers in Cilegon City, Banten Province, Indonesia, especially who live at Kebondalem village. The independent variables in this study are Cultural Factors (X1) and Psychological Factors (X2). The dependent variable is consumer behaviour (Y). There were 50 respondents involved in this research and filled the questionnaire with a Likert scale with 4 alternative answers. Hypothesis testing is analysed with t-test (partial test), F-test (simultaneous test), and R-square test to determine the effect of independent variables with dependent variable using SPSS program. The F-test result the regression equation is not linear, with the equation is Y = 11.654 + 0.110 X1 + 0.197 X2. The R-square test gives the correlation coefficient is 0.119 and correlation between the dependent and independent variable is very weak, even considered to have no relationship. The t-test result shows that cultural factors and psychological factors did not significantly influence female worker’s consumptive behaviour.
Using cluster analysis for location decision problem
Authors: Chain P , Arunyanart S 
Published: December 2019

Abstract
Numbers of cattle farms have been increasing throughout the production regions. The aim of this paper is to investigate appropriate locations of regional food distribution centers in Northeast Thailand for distributing feed to cattle farms. A geographic information system (GIS) was used to map spatial data locations from 421 standardized cattle farms in 63 districts from Northeast Thailand. Hierarchical agglomerative clustering was applied as a statistical technique to sort datasets into homogeneous groups and three clusters were identified. The center of gravity (COG) method was then used to find the optimal locations of food distribution centers, with results suggesting Chatturat district, Pa Tio district, and Wang Sam Mo district as most suitable for distributing feed to cattle farms.
Analysis of provider training business model development based on canvas business model approach
Authors: Sutrisno W 
Published: December 2019

Abstract
The importance of increasing skills and expertise of human resources has affected the increasing of the demand for training provider services. This opportunity causes competition among many training providers. In order to strengthen each provider, it must employ an innovative business model such as canvas business model method. PT. X is one of training providers in Yogyakarta who needs to improve its business model so it can be more competitive among others for the long-term business. This study aims to identify and evaluate the current business model, and design an appropriate a business model based on canvas business model method. The study showed that PT. X needs to develop its business models by adding a renewable value proposition; expanding its consumers through cooperation with hotels and freelancers; creating a consumer community of PT. X; and gaining new additional revenue.
Virtual traffic simulation for minimizing average of vehicle queue length in Serang city Indonesia
Authors: Irman A , Satria D , Dewantari N M , Arliannur  , Ero T 
Published: December 2019

Abstract
Almost the big cities in the world has the traffic jam problem. Serang City as the capital city of Banten-Indonesia has the same traffic problem, without a good integrated public transport, makes the problem of traffic transportation in Serang City becomes heavier. Virtual traffic simulation is known as powerful tool for generating alternative solution to minimize the traffic problems. This research use PTV Vissim as virtual traffic simulation software to minimize the traffic problems in Serang City. Serang City has 6 sub-district area, there are Cipocok, Curug, Kasemen, Serang, Taktakan, and Walantaka. This research focus on vehicles traffic only in area of sub-district Serang with 5 main traffic lights crossroad. PTV Vissim uses to simulate the 5 of the main crossroads and find the average of the existing vehicles queue length in rush hour. Trial and error operations such as traffic lights timing and routing modification use to generate alternative solutions for minimizing vehicles queue length as traffic performance in this research. The result of this research has found the rush hour in Serang City occured at 06.00-10.00 and 14.01-18.00 (UTC +07:00), and the routing modification in Kebon Jahe can reduce the average of queue length for 53%.
Measurement of e-service quality from user perceptions using the IPA-Kano integration model
Authors: Wahyuni N , Gunawan A , Rahmawati A 
Published: December 2019

Abstract
Users have a very important role in the service industry. If the users are satisfied with the service, then they will reuse it in the future. Conversely, if they feel dissatisfied, users will look for similar services from competitors. In this research, the case study is XYZ, one of online marketplaces that have begun to evolve in Indonesia. The research purpose was to measure e-service quality from the perception of users by using the Kano-IPA integration model. The research methodology used is by distributing questionnaires. Service attributes are based on the dimensions of E-Service quality; consisting Efficiency, Fulfilment, Reliability, Privacy, Responsiveness, Compensation and Contact. The number of service attributes designed is 28. Respondents are users of the XYZ in Cilegon. Importance Performance Analysis (IPA) is one of satisfaction analysis methods that is commonly used to map the level of satisfaction with the level of importance of service attributes. On the other hand, the Kano model classifies service attributes under the category of Must-Be, Performance, and Attractive. The results shown that the Compensation dimension still needed serious attention from the management. The highest level of satisfaction felt by service users was in the Privacy dimension.
Evaluation of turnaround maintenance practice effects in the process industry
Authors: Khasanah R , Jamasri  , Yuniarto H A 
Published: December 2019

Abstract
Process industry such as the petrochemical industry is a kind of industry where the production performance depends on production equipment and assets. Thus, preventive maintenance becomes a very important way to achieve sustainable production in the process industry. The effectiveness, efficiency, reliability and maintenance of the equipment are vital for the uninterrupted, continuous and efficient operation. Turnaround maintenance (TAM) plays the most important role of preventive maintenance activities because it is an essential activity of maintenance in the process industry to improve the availability and reliability of the assets includes plant facilities, equipment and machinery. This study evaluates the effect of Turnaround Maintenance on the condition of the assets in the process industry using the statistical method. The significant variables used to analyze the effect of TAM are Plant Availability and Downtime Loss. The result shows that the correlation value between TAM occurrences with the increasing of availability is 0, 315 and with the increasing of downtime loss is -0, 818. The correlation value proves that TAM have a significant effect to increase the availability of the plant and to decrease the downtime loss in the real process industry practice.
Designing employee workload calculation based on Java-based full time equivalent method
Authors: Wahyuni N , Gunawan A , Ferdinant P F , Fitriyanti E 
Published: December 2019

Abstract
The measurement of workload is carried out to determine the amount of burden on a position through job description. Before determining the number of man power, it is necessary to measure the workload for a certain position. The method commonly used is the Full Time Equivalent (FTE) method. The FTE method is used to calculate workloads with various task variations. The case study is ABC, a machine maintenance service company. As a company engaged in the service sector, having high quality and proportional number of human resources (HR) is important in order to provide the best service for customers. For this reason, an application is needed that can support FTE calculations. The purpose of this study was to find out the number of employees by calculating workloads based on the Java-based FTE method. The design of this application is done using the System Development Life Cycle (SDLC) approach. The design of this application starts from the stage of analysis, design, coding, testing, and maintenance. Functional needs refer to the HR division as user and administrator. The research findings to facilitate the relevant divisions or decision maker to add personnel or reduce them using the application.
A Condition-based maintenance and spare parts provisioning based on markov chains
Authors: Nurhasanah H , Ridwan A Y , Santosa B 
Published: December 2019

Abstract
Machine is a vital tool of the company in helping the production process. Every company expects the production to run smoothly, but sometimes it is hampered by damage that happened to the machine, so that the production process is disrupted and causes losses to the company. Engine damage can be minimized by regularly evaluating the condition of the spare parts. In practice, if the spare parts inventory policy is not accurate it will cause stock outs or overstocks, which can lead to more costs for the company. The worst case is if there is no spare part stored in the warehouse when it is needed, it can make the production floor stopped, which in the end makes the company can’t fulfil their production target. This research aims to obtain an optimal preventive maintenance schedule by calculating the machine’s reliability and inventory provisioning policy for the spare parts according to predicted amount that will be needed in the future calculated using Markov chains so the company can determine the reorder point (r) and the economic order quantity (EOQ).
Maintenance system design on air jet loom (AJL) machine using reliability centered maintenance (RCM) method
Authors: Setiawan D , Jusolihun N , Cahyo W N 
Published: December 2019

Abstract
Air Jet Loom (AJL) is a critical machine in textile industries, used to convert thread into fabric. This research used a leading textile company in Yogyakarta as a case study. Preliminary observation in the case study showed that the AJL machine had a high downtime that affects the overall production process. This study aimed to identify critical components of AJL machine and designed maintenance system for AJL machine to reduce downtime. Reliability centered maintenance (RCM) method was used in designing maintenance system by focusing on improving machine reliability. The study began with the identification of critical components of AJL machine using a fishbone diagram and continued with pareto diagram. For each critical component, time between failure (TBF) data was collected. The collected TBF data was then used to calculate the level of reliability and maintenance schedule. The results found that there were six critical components of AJL machine, i.e., VPM, take up, insertion, kamran, oil circulation, and leno. The preventive maintenance scheduling interval for the six components was VPM 120 hours, belt take up 144 hours, insertion 72 hours, kamran 24 hours, oil circulation 144 hours and leno 96 hours. The proposed preventive maintenance schedule on the six critical components of AJL machine was able to reduce downtime by 30% and increase fabric production by 13%.
Optimal design of mechanical and physical quality of pottery using TOPSIS method
Authors: Sugarindra M , Parkhan A 
Published: December 2019

Abstract
The quality of pottery can identify from the mechanical properties and physical properties of the pottery resistance to mold and mildew. Mechanical properties can measure by bending strength and impact strength, while physical properties can measure from water absorption. The Small Medium Enterprise (SME) production pottery in Klaten has a bending strength of 9.03 MPa, affect the strength of 0.0844 Joule/mm2 and water absorption of 14.69%. One competitive strategy is to improve product quality. Improving the quality of pottery products can be done by improving the mechanical properties and physical properties. Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) is a multicriteria decision making method. TOPSIS method can provide the best alternative choice based on the quality attributes of the product used. The results from this research showed that the combination of level factors that produced the optimum quality have bending strength of 10.21 Mpa, impact strength of 0.0798 Joule/mm2, water absorption of 11.75%. Based on the sensitivity analysis of attribute weights, it found that changes in the order of priority weights were sensitive only in the order of impact strength, bending strength, and water absorption.
Warehouse server productivity analysis with objective matrix (OMAX) method in passenger boarding bridge enterprise
Authors: Basumerda C , Rahmi U , Sulistio J 
Published: December 2019

Abstract
One of the leading keys to successful management in Inventory Management is Human Resource. Its productivity directly improved the production process performance. This research objective is to analyze warehouse server productivity by incorporating Objective Matrix Method (OMAX). Three criteria are observed, they are Service Time, Database Input Time, and total output. The observation was conducted in 5 days. The object in this research is server at two warehouses in a passenger boarding bridge enterprise. First worker productivity is increase for 4 days with average Index Performance 141,67% and decrease in one day with index performance 33,33%. Meanwhile, second worker productivity is decrease for 4 days with average index performance 70,84% and increase in one day with index performance 33,33%. Productivity between one server with others were unequal. Based on the difference, furthermore analysis is done by using cause-effect diagram (fishbone) to determine the root of the problem stated. The cause of the problem is each server has difference technical ability, there is no Standard Operating Procedure for warehouse service and database input process, the warehouse layout and the working environment is not practicing proper 5S (sort, set in order, shine, standardize, sustain).
Evaluation on Rupture Characteristics of CNG Vehicle Container by Heat Treatment using AUTODYN
Authors: Soo Kim Eui 
Published: December 2019

Abstract
The vehicle using compressed natural gas (CNG) trend to be extended in use internationally as optimal counterplan for reducing discharge gas of light oil due to high concern about environment. However, because NGV (Natural Gas Vehicle) is equipped with composite pressure vessel (CPV) and the CPV contain compressed natural gas, the risks in the case of accident is very high. The main cause of rupture accident for NGV is due to the defect of heat treatment for the vessel at the manufacturing stage and the rupture characteristics vary greatly depending on the heat treatment conditions. In this study, explicit dynamics analysis was performed to evaluate the bursting characteristics of the CNG pressure containers by heat treatment. Explicit dynamics analysis is numerical analysis method applied to the large deformation analysis that occurs instantaneously such as collision and explosion. The condition of the defect for heat treatment is that quenching and tempering temperatures applied to the normal vessel were adjusted and explicit dynamics analysis was performed using AUTODYN for each case. It is possible to understand how important the heat treatment process is in the high pressure vessel unlike any product.