5 research outputs found
Machine components clustering with DSM and repeating method : case study of a soil mixing machine
In this study, components of the machine are analyzed to group all components into modular groups with a case study of a soil mixing machine. The study begins by creating a design structure matrix of all components. Next, the design structure matrix is transferred into a distance matrix of all components with Jaccard method. After that, the equation of complete linkage must be applied to change the distance matrix to a tree dendrogram for showing the relationship of machine components and dependent coefficient. With this tree dendrogram, six clusters are arranged:- the 1st cluster has 8 modules at the lowest dependent coefficient, the 2nd cluster has 7 modules, the 3rd cluster has 6 modules, the 4th cluster has 5 modules, the 5th cluster has 4 modules, and the 6th cluster has 2 modules at the highest dependent coefficient. Finally, the 1st cluster with 8 modules is considered to be the most proper cluster for this soil mixing machine by applying the repeating method to analyze all six clusters
āļāļēāļĢāļāļąāļāļāļēāļĄāļīāđāļāļāļĢāđāđāļĨāļ°āļĢāļ°āļāļāļāļēāļĢāļāļąāļāļāļēāļĢāļāđāļģāļāļēāļāļēāļĨāđāļāļāļŠāļĄāļāļāļāļĨāļāļąāļāļāļąāļ§āļĢāđāļ§āļĄāļāļąāļāļāļāļāļāđāđāļ§āļĢāđāļāļĢāļ°āļĒāļļāļāļāđāļāļģāļāļēāļāļāļāļĢāļ°āļāļāđāļāļĢāļ·āļāļāđāļēāļĒāļāļīāļāđāļāļāļĢāđāđāļāđāļDevelopment of Groundwater Metering and Management System Using Embedded Computer and Web-based Application Software
āļāļāļāļ§āļēāļĄāļ§āļīāļāļąāļĒāļāļĩāđ āļāļģāđāļŠāļāļāļāļēāļĢāļāļāļāđāļāļāđāļĨāļ°āļāļąāļāļāļēāļĄāļīāđāļāļāļĢāđāļāđāļģāļāļēāļāļēāļĨāļĢāļ°āļāļāļŠāļĄāļāļāļāļĨāļāļąāļāļāļąāļ§āļāļģāļāļēāļāļĢāđāļ§āļĄāļāļąāļāļāļāļāļāđāđāļ§āļĢāđāļāļĢāļ°āļĒāļļāļāļāđāđāļĨāļ°āļĢāļ°āļāļāļāļēāļāļāđāļāļĄāļđāļĨāļāļĩāđāļāļģāļāļēāļāļāļāļĢāļ°āļāļāđāļāļĢāļ·āļāļāđāļēāļĒāļāļīāļāđāļāļāļĢāđāđāļāđāļ āļŠāļģāļŦāļĢāļąāļāđāļāđāļāļĢāļ§āļāļāļīāļāļāļēāļĄāđāļĨāļ°āļāļąāļāļāļķāļāļāļĢāļīāļĄāļēāļāļāļēāļĢāđāļāđāļāđāļģāļāļāļāļāļđāđāđāļāđāļāđāļģāļāļēāļāļēāļĨāļāļĢāļ°āđāļ āļāļāļļāļāļŠāļēāļŦāļāļĢāļĢāļĄāđāļāļāļ·āđāļāļāļĩāđāļāļĢāļ°āđāļāļĻāđāļāļĒāļāļąāđāļāļĢāļ°āļĒāļ°āļāļēāļāđāļāļĨāđāđāļĨāļ°āļĢāļ°āļĒāļ°āļāļēāļāđāļāļĨ āļāļāļāļāļēāļāļāļĩāđāļĒāļąāļāđāļāđāļāļąāļāļāļēāļĢāļ°āđāļāļĩāļĒāļāļ§āļīāļāļĩāļāļēāļĢāļāļĢāļ°āļĄāļ§āļĨāļāļĨāļŠāļąāļāļāļēāļāļŠāļģāļŦāļĢāļąāļāļāļąāļāļĢāļŠāļāļāļāļ§āļēāļĄāļāļīāļāļāļāļāļīāļāļāļāļāļēāļĢāđāļāđāļāđāļģāļāļēāļāļāđāļāļĄāļđāļĨāļāļēāļĢāļ§āļąāļāļāđāļēāļāļąāļ§āđāļāļĢāļāđāļēāļāđ āļāđāļēāļāļāļļāļāļāļĢāļāđāđāļāđāļāđāļāļāļĢāđāļāļĩāđāđāļāđāļāļīāļāļāļąāđāļāđāļ§āđāļĢāđāļ§āļĄāļāļąāļāļĄāļīāđāļāļāļĢāđāļāđāļģāđāļĨāļ°āļĢāļ°āļāļāļŠāļĄāļāļāļāļĨāļāļąāļāļāļąāļ§ āđāļāļĒāļāļģāļāđāļāļĄāļđāļĨāļāļąāļāļāļĨāđāļēāļ§āļĄāļēāļāļĢāļ°āļĄāļ§āļĨāļāļĨāļāļāļāļāļāļāđāđāļ§āļĢāđāļāļĢāļ°āļĒāļļāļāļāđāļāļģāļāļēāļāđāļāļāđāļ§āļĨāļēāļāļĢāļīāļāļāļĢāđāļāļĄāļĢāļ°āļāļāļāļēāļĢāļĢāļēāļĒāļāļēāļāļāļĨāđāļĨāļ°āđāļāđāļāđāļāļ·āļāļāļāđāļāļāļđāđāļāļ§āļāļāļļāļĄāđāļĨāļ°āļāļđāđāđāļāđāļāđāļģ āļāļēāļāļāļēāļĢāļāļģāļĨāļāļāļāļēāļĢāļāļģāļāļēāļāļāļāļāļĢāļ°āļāļāļāđāļ§āļĒ MATLAB Simulink āđāļāļ·āđāļāļāļāļŠāļāļāļāļĢāļ°āļŠāļīāļāļāļīāļāļĨāļāļāļāļĢāļ°āđāļāļĩāļĒāļāļ§āļīāļāļĩāļāļēāļĢāļāļĢāļ§āļāļŠāļāļāļāļēāļĢāđāļāđāļāđāļģāļāļēāļāļēāļĨ āļāļāļ§āđāļēāđāļŦāđāļāļĨāļĨāļąāļāļāđāļŠāļāļāļāļĨāđāļāļāļāļąāļāļāļąāļāļāļēāļĢāļāļāļŠāļāļāđāļāļĒāđāļāđāļāđāļāļĄāļđāļĨāļāļĩāđāđāļāđāļāļēāļāļāļēāļĢāļ§āļąāļāļāļĢāļīāļāđāļāļāļēāļĢāļāļāļĨāļāļāļ āļēāļāļŠāļāļēāļĄIn this paper, development of smart metering and management system for groundwater utilization is proposed. It has been designed as a tool to monitor and record quantity of groundwater usage, from both short and long distance, industrial users in Thailand. The system comprises of embedded computer, groundwater metering unit and web-based software for monitoring and management. Moreover, online signal processing algorithm has been developed and used to detect fraudulent groundwater usage. The real-time application software processes signals from sensors and builds up supporting information for security warning, decision making and report to the user. By running MATLAB Simulink on fraudulent detection algorithm, the simulation results are found compatible to data that collected from the field test of smart metering system
Applying Shaininâs Tools to Process Improvement for Reducing Cracking Defect of Sanitary Product
The objective of this research attempt is to implement the DMAIC (Define, Measure, Analyze, Improve, Control) approach, a part of the Six Sigma methodology, in order to diminish the loss of sanitary ware during the production process. Specifically, this study focuses on addressing the issue of cracking defects that often occur in the production of sanitary wares after the firing process. Cracking defects manifest as gaps on the surface of sanitary wares, resulting in nonconforming and aesthetically inferior products. The AG27 Model, a highly demand toilet bowl, was selected as the case study due to its significant occurrence of cracking defects, accounting for 20% of the total defective units. The research utilizes the Six Sigma methodology in conjunction with Shainin's tools to identify the root causes and enhance production yield. The employed Shainin's tools include the Family of variation (FOV's), Concentration chart, Paired comparison, and Better and current (B vs C). The primary focus area of investigation involves the variation in the forming process and the design of the plaster mold. Through the use of the concentration chart, it was determined that the cracking defects predominantly appear along the border line between the rim and body of the toilet bowl. Subsequent experiments, based on paired comparison, confirmed that the design of the border line, which incorporates a hollow body shape, and the potential degradation of mold quality due to frequent use, were the two significant factors contributing to the cracking defects. In order to address these issues, a new design was implemented to enhance the connection between the rim and solid body of the AG27 toilet bowl. The practicality of this solution was validated through the utilization of the B vs C tool during the improvement phase. As a result, the occurrence of cracking defects decreased from approximately 4.0% to 1.92% during the control phase, representing a potential reduction of defects by over 50%
Lean Production for Reducing Wastes in Convex Lens Production Process
This research aimed to investigate the waste generated during the production of traditional convex lens. The study proposed a method to eliminate such waste by utilizing value stream mapping (VSM) as a tool for data collection and waste identification throughout the entire production process. Through the analysis of data using VSM, three specific types of waste were identified. These included losses resulting from ineffective utilization of the oven machine during the polymerization process, inefficiencies in personnel performance, and inappropriate working procedures. To address these waste issues, the task employed the work study method to optimize machine utilization, develop efficient work processes for personnel, and improve inappropriate procedures to enhance overall efficiency. The ECRS method was utilized to improve the process of waste elimination. The research findings demonstrated substantial reductions in waste within the production process. Specifically, the total throughput time decreased from 661.07 minutes to 480.68 minutes, representing a reduction of 27.29%. Furthermore, the total production lead time decreased from 1.20 days to 0.94 days, indicating a reduction of 21.67%. In terms of personnel, the workforce decreased from 42 employees per shift to 29 employees, reflecting a decrease of 30.95%. Finally, the number of oven machinery units required for all three shifts decreased from 3 ovens to 2 ovens, resulting in a reduction of 33.33%
āļāļēāļĢāļŦāļēāļāđāļēāļāļĩāđāđāļŦāļĄāļēāļ°āļŠāļĄāļāļāļāļāļąāļāļŦāļēāļāļēāļĢāļāļąāļāđāļŠāđāļāļāļēāļāļāļēāļĢāđāļāļīāļāļĢāļāļāļēāļĢāļāļāļŠāđāļāđāļāļĢāļĐāļāļĩāļĒāđ āļāļĢāļāļĩāļĻāļķāļāļĐāļē āļĻāļđāļāļĒāđāđāļāļĢāļĐāļāļĩāļĒāđāļāļāļīāļāļāļĢāđāļāļļāļĢāļĩOptimization of the Vehicle Routing Problem in Postal Transportation a Case Study of Kabinburi Mail Center
āļāļēāļĢāļāļāļŠāđāļāđāļāļĢāļĐāļāļĩāļĒāđ āđāļāđāļāļŦāļāļķāđāļāđāļāļāļąāđāļāļāļāļāļāļēāļĢāļāļģāđāļāļīāļāļāļēāļāļŦāļĨāļąāļāļāļāļāļāļīāļāļāļēāļĢāđāļāļĢāļĐāļāļĩāļĒāđ āļāļĩāđāļāļ·āļāļ§āđāļēāļĄāļĩāļāļ§āļēāļĄāļŠāļģāļāļąāļāļāļĒāđāļēāļāļĒāļīāđāļ āđāļāļ·āđāļāļāļāļēāļāđāļāđāļāļāļąāđāļāļāļāļāļāļĩāđāđāļāđāļ§āļąāļāļāļ§āļēāļĄāļŠāļēāļĄāļēāļĢāļāđāļāļāļēāļĢāđāļāđāļāļāļąāļāđāļĨāļ°āļāļļāļāļ āļēāļāđāļāļāļēāļĢāđāļŦāđāļāļĢāļīāļāļēāļĢāļāļāļāļŦāļāđāļ§āļĒāļāļēāļāđāļāļĢāļĐāļāļĩāļĒāđ āļāļąāļāļāļąāđāļ āļāļēāļĢāļāļąāļāđāļŠāđāļāļāļēāļāļāļēāļĢāđāļāļīāļāļĢāļāļŠāļģāļŦāļĢāļąāļāļāļēāļĢāļŠāđāļāļāđāļāļŠāļīāđāļāļāļāļāļāļĩāđāļŠāđāļāļāđāļēāļāđāļāļĢāļĐāļāļĩāļĒāđāļāļēāļāļĻāļđāļāļĒāđāđāļāļĢāļĐāļāļĩāļĒāđāđāļāļĒāļąāļāļāļĩāđāļāļģāļāļēāļĢāđāļāļĢāļĐāļāļĩāļĒāđāđāļāđāļĨāļ°āđāļŦāđāļ āđāļĨāļ°āļāļēāļĢāļāļąāļāđāļŠāđāļāļāļēāļāļāļēāļĢāđāļāļīāļāļĢāļāļŠāļģāļŦāļĢāļąāļāļāļēāļĢāļĢāļ§āļāļĢāļ§āļĄāļŠāļīāđāļāļāļāļāļāļĩāđāļŠāđāļāļāđāļēāļāđāļāļĢāļĐāļāļĩāļĒāđāļāļēāļāļāļĩāđāļāļģāļāļēāļĢāđāļāļĢāļĐāļāļĩāļĒāđāđāļāđāļĨāļ°āđāļŦāđāļāļāļĨāļąāļāļĄāļēāļĒāļąāļāļĻāļđāļāļĒāđāđāļāļĢāļĐāļāļĩāļĒāđ āđāļŦāđāļĄāļĩāļāļ§āļēāļĄāđāļŦāļĄāļēāļ°āļŠāļĄāđāļĨāļ°āļĄāļĩāļāļĢāļ°āļŠāļīāļāļāļīāļ āļēāļāļāļķāļāļāļ·āļāļ§āđāļēāļĄāļĩāļāļ§āļēāļĄāļŠāļģāļāļąāļ āļāļąāļāļāļąāđāļ āđāļāļāļāļāļ§āļēāļĄāļāļĩāđāļāļđāđāļ§āļīāļāļąāļĒāļāļķāļāđāļāđāļāļģāđāļŠāļāļāđāļāļ§āļāļīāļāđāļāļĩāđāļĒāļ§āļāļąāļāļāļēāļĢāļŦāļēāļāđāļēāļāļĩāđāđāļŦāļĄāļēāļ°āļŠāļĄāļāļāļāļāļąāļāļŦāļēāļāļēāļĢāļāļąāļāđāļŠāđāļāļāļēāļāļāļēāļĢāđāļāļīāļāļĢāļāļāļēāļĢāļāļāļŠāđāļāđāļāļĢāļĐāļāļĩāļĒāđ āļāļĢāļāļĩāļĻāļķāļāļĐāļē āļĻāļđāļāļĒāđāđāļāļĢāļĐāļāļĩāļĒāđāļāļāļīāļāļāļĢāđāļāļļāļĢāļĩ āļāļķāđāļāļ§āļīāļāļĩāđāļāļāļēāļĢāļŦāļēāļāđāļēāļāļĩāđāđāļŦāļĄāļēāļ°āļŠāļĄāļāļāļāļāļąāļāļŦāļē āļāļđāđāļ§āļīāļāļąāļĒāđāļāđāļāļģāļŦāļĨāļąāļāļāļēāļĢāļāļāļāļāļąāļāļŦāļēāļāļēāļĢāļāļąāļāđāļŠāđāļāļāļēāļāļāļēāļĢāđāļāļīāļāļĢāļāđāļāļāđāļāļĩāđāļĒāļ§āļāļĨāļąāļāđāļāđāļēāļĄāļēāļāļĢāļ°āļĒāļļāļāļāđāđāļāđ āđāļāļ·āđāļāļŦāļēāđāļŠāđāļāļāļēāļāļāļēāļĢāđāļāļīāļāļĢāļāļŠāļģāļŦāļĢāļąāļāļāļēāļĢāļāļāļŠāđāļāđāļāļĢāļĐāļāļĩāļĒāđāļāļāļāļĻāļđāļāļĒāđāđāļāļĢāļĐāļāļĩāļĒāđāļāļĢāļāļĩāļĻāļķāļāļĐāļēāļāļĩāđāđāļŦāļĄāļēāļ°āļŠāļĄ āđāļĨāļ°āļĄāļĩāļāđāļāļāļļāļāļĢāļ§āļĄāđāļāļāļēāļĢāļāļāļŠāđāļāļāļĩāđāļāđāļģāļāļĩāđāļŠāļļāļ āļāļķāđāļāļāļĨāļāļēāļĢāļ§āļīāļāļąāļĒāļāļēāļāđāļāļ§āļāļīāļāļāļĩāđāļāļģāđāļŠāļāļāļāļāļ§āđāļē āļāļģāļāļ§āļāļĒāļēāļāļāļēāļŦāļāļ°āļāļĩāđāđāļāđāđāļāļāļēāļĢāļāļāļŠāđāļāđāļāļĢāļĐāļāļĩāļĒāđāļĨāļāļĨāļāļāļēāļ 8 āļāļąāļ āđāļŦāļĨāļ·āļ 6 āļāļąāļ āļāļāļāđāļŦāļāļ·āļāļāļēāļāļāļĩāđāļāđāļēāđāļāđāļāđāļēāļĒāđāļāļāļēāļĢāļāļāļŠāđāļāđāļāļĢāļĐāļāļĩāļĒāđāļĨāļāļĨāļāļāļēāļāđāļāļīāļĄ 25 āđāļāļāļĢāđāđāļāđāļāļāđ āļāļąāļāļāļąāđāļ āļāļķāļāļŠāļēāļĄāļēāļĢāļāļŠāļĢāļļāļāđāļāđāļ§āđāļē āđāļāļ§āļāļīāļāļāļĩāđāļāļģāđāļŠāļāļāđāļāļāļēāļāļ§āļīāļāļąāļĒāļāļĩāđāļĄāļĩāđāļāļ§āđāļāđāļĄāļāļĩāđāļāļ°āļŠāļēāļĄāļēāļĢāļāļāļģāđāļāđāļāđāđāļāļāļēāļĢāļāļĢāļąāļāļāļĢāļļāļāđāļĨāļ°āļāļąāļāļāļēāļĢāļ°āļāļāļāļēāļĢāļāļāļŠāđāļāđāļāļĢāļĐāļāļĩāļĒāđāļāļāļāļĻāļđāļāļĒāđāđāļāļĢāļĐāļāļĩāļĒāđāļāļĢāļāļĩāļĻāļķāļāļĐāļēāđāļāļāļąāļāļāļļāļāļąāļāđāļāđPostal transportation is the key task of postal operation. It is very crucial since transportation is the most important criteria in business competition and service quality of postal enterprise. Therefore, finding the optimal vehicle route on delivering from each postal office and collecting parcels from each sub-office to the main mail center should be conduct with high efficiency. This article proposes a concept in determining the optimal sequences of post offices of Kabinburi Mail Center. It aims at finding the best solution for the vehicle routing problems with back hauls (VRPB) with the lowest transportation cost. The results suggests that the number of vehicle should be reduced from 8 to 6 cars which will decrease the cost by approximately 25% from the current cost. It can be concluded that the proposal guideline can be applied to improve the existing operational transportation of the postal service