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International Scientific Journal of Engineering and Technology (ISJET)
Number of Followers: 0  

  This is an Open Access Journal Open Access journal
ISSN (Print) 2586-8527
Published by Panyapiwat Institute of Management Homepage  [2 journals]
  • Editor Note

    • Authors: Phannachet Na Lamphun
      Abstract: Dear Colleagues,
      On The path of Thailand 4.0, many organizations have deployed and carried on the project to improve their business in many ways. For example one of the mega project is to develop fuel depot in Pichit and Lampang province in the northern part of Thailand and pipeline system to transfer the oil with the project value of 3,000 million Baht that will change the oil logistic system in Thailand. Such project can be the benefit in many ways such as reducing air pollution that created from truck transportation, reduce accident on road, sustain oil in northern part of Thailand which can be used for transportation, agriculture and many more. Technology and engineer are one of the very important aspects that can make the impossible possible.
      International Scientific Journal of Engineering and Technology (ISJET) keeps moving on along with the new and changing technology to present the new research information that can benefit the various organizations. We would like to thank all contributors for their valuable research in engineering and technology including using social media, technology, transportation, and manufacturing. Such information will be a great knowledge in many
      organizations and crucial for their business. We would like to urge you to continue support our journal with your valuable research.
      Finally, on behalf of the Editorial Board, we would appreciate feedback from you, the readers of and contributors to the ISJET. Hence, you are encouraged to contact the Editors or the journal coordinator on any aspect of the journal. Your input is, as always, highly valued as it helps up improve further the quality of our offering.
      With Kind regards, Asst. Prof. Dr. Phannachet Na Lamphun
      Associate Editor of Engineering
      PubDate: 2019-06-28
      Issue No: Vol. 3, No. 1 (2019)
       
  • Assessment of Mental Workload by Subjective Analysis Technique and
           Electroencephalography in the Sample Program Testing

    • Authors: Prachuab Klomjit, Phitsini Thanawiwat, Sasi Ninlawat
      Pages: 1 - 6
      Abstract: The purpose of this research was to study the assessment of mental workload by subjective analysis technique and electroencephalography in the sample program testing. The different types of the workload were assessment as follow: Evaluation of Posture Operation by RULA, Windows and Android operating systems and Manual. A performance of the research was divided on these three parts. First, studied and reviewed of the evaluation. Second, applied the evaluation form, NASA TASK LOAD INDEX (NASA-TLX) and compared with the brainwave of electroencephalography (EEG). Third, estimated and compared the performance of workload. A result of the assessment of mental workload by subjective analysis technique and electroencephalography. It can be concluded that. Evaluation of Posture Operation by RULA method. The heaviest workload is evaluated work postures using manual calculations. The minimum workload is RulaSU Android operating system.
      PubDate: 2019-06-28
      Issue No: Vol. 3, No. 1 (2019)
       
  • Benefit of Elastically Mounted Linear Damping Vibration Isolation for
           Transportation System

    • Authors: Nuttarut Panananda, Akerat Chanprasert
      Pages: 7 - 14
      Abstract: Aim of the research is to investigate benefit of supporting the damping element elastically. A single degree of freedom base excited vibration isolation system is focused for this study. Such the isolation system can be found in transportation system which its base is exciting. The improved vibration isolation system can help in reducing the damages caused from vibration to the transporting products. The proposed model has a damping element supported elastically by a spring. The damping force characteristic is assumed to be linear function of relative velocity across the damper. Two values of linear damping ratios were employed for investigation. The frequency response obtained from mathematical and numerical examinations are compared to experimental results. The frequency responses for the system with the relaxation spring are also compared to that with rigidly connected damper. Supporting the damping element elastically is found to reduce the vibration level for the high excitation frequencies in around 10 frequency decade from the natural frequency. The stiffness of supporting spring plays the important role in lowering the vibration level. Thus, it can be concluded that the vibration level of the products being transported can be reduced by supporting the damping element elastically.
      PubDate: 2019-06-28
      Issue No: Vol. 3, No. 1 (2019)
       
  • Capacity Planning of Aggregators and Multi-objective Optimization Approach
           to Optimal Data Transmission in Cloud Providers for Meteorological Sensor
           Network

    • Authors: Nay Myo Sandar
      Pages: 15 - 24
      Abstract: To predict weather precisely, meteorologists need to collect and analyze meteorological data from wireless sensor devices installed in different areas. Today, cloud computing provides efficient storage and processing tasks for large-scaled sensor data. However, wireless sensors are constrained with bandwidth to transmit data to the cloud. Therefore, we propose a system model called cloud-based meteorological sensor network with aggregator approach which combines data from sensors and forwards to the cloud with better bandwidth. In this paper, the two main problems are considered for proposed system model. First, optimization approach to capacity planning of aggregators is addressed to obtain optimal number of aggregators for providing enough services to sensor data while reducing high investment. Second, optimal data transmission (ODT) algorithm based on multi-objective optimization approach is also proposed to minimize cost for provisioning resources and delay for transferring and processing when data from aggregators are allocated to multiple cloud providers. Then, the extensive numerical studies are performed for each problem. The numerical
      results provide not only optimal number of aggregators with the minimum total cost but also optimal data transmission from aggregators to the
      cloud with the minimum total cost and delay for the proposed system model.
      PubDate: 2019-06-28
      Issue No: Vol. 3, No. 1 (2019)
       
  • Gamification’s effect in Social Media on CSR activities

    • Authors: Rathawit Na Lamphun, Phannachet Na Lamphun, Pakpoom Patompak, Jukrapun Chitpong
      Pages: 25 - 30
      Abstract: Social Media Marketing is to create brand awareness to the target audience. Many Corporate Social Responsibility (CSR) is using social media with the aimed to distribute information widely and reach more participant. However there is some concerned with budget, participation and other factor that involve which might lead to not enough participant to keep the project on. In order to respond, a gamification method is use to develop the content and process to increase participation. The result shows that the content that developed and using gamification in the process has increase the participant more than triple of regular content. This fact shows that gamification can be applied into social media content and process which increase participation of CSR project.
      PubDate: 2019-06-28
      Issue No: Vol. 3, No. 1 (2019)
       
  • JMM Gimbal Stabilizer

    • Authors: Suchada Rianmora, Kulayuk Poulpanich, Jeerasak Rattanagosol, Vorrapath Jitpaisarnwattana
      Pages: 31 - 40
      Abstract: To develop and improve the traditional gimbal stabilizer for smartphone or camera-based acquisition device, the handle part is the main point to be considered. Product Design and Development (PDD), Ergonomic Design, and Rapid Prototyping (RP) have been applied for creating the guideline of the conceptual model of this developed gimbal stabilizer. Dimensions and physical characteristics of the gimbal’s handle have been created by applying the concept of ergonomics to fit the people who use it. Using this proposed design can help the users to minimize fatigue during prolonged imaging activities.
      PubDate: 2019-06-28
      Issue No: Vol. 3, No. 1 (2019)
       
  • Optimal inventory control policy of a hybrid manufacturing-
           remanufacturing system using a possibilistic linear programming approach

    • Authors: Kittiphan Nuamchit, Navee Chiadamrong
      Pages: 41 - 56
      Abstract: Remanufacturing is the process of converting used products back to like-new products. Production planning of inventory control policies
      in the remanufacturing of used products with different prioritizations (remanufacturing vs manufacturing) is investigated in this case study.
      For the hybrid manufacturing/remanufacturing production planning problem, the imprecision of customer demand, related operating costs, and
      the number of returned used components are considered to be the main uncertainty. As a result, the fuzzy set theory is employed due to the presence of the imprecise information. To defuzzify imprecise data, the Possibilistic Linear Programming (PLP) with the weighted average method is applied. The proposed approach maximizes the most likely value of the profit, minimizes the risk of obtaining a lower profit, and maximizes the possibility of obtaining a higher profit for each production planning policy at the same time. The result shows that the Priority-To-Remanufacturing (PTR) policy shows a higher profit from each objective function and is solved with a higher satisfaction value than the policy of giving more Priority-To-Manufacturing (PTM). For instance, the most likely profits of the PTR policy from each scenario are ranging from $ 66,774 to $ 114,280 as compared to $ 66,610 to $ 88,882 from the PTM policy and a higher satisfaction values of the linear membership function are ranging from 38.34% to 53.95% from
      the PTR policy as compared to 39.13% to 53.40% from the PTM policy. As a result, PLP can help decision makers to be well aware of the risks and
      effects of uncertainty on their plans, so they can prepare in advance for such scenarios.
      PubDate: 2019-06-28
      Issue No: Vol. 3, No. 1 (2019)
       
 
 
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