Jansri, Anurak

Preferred name

Jansri, Anurak

Alternative Name

Jansri, Anuruk

Main Affiliation

International Academy of Aviation Industry

anurak.ja@kmitl.ac.th

Now showing 1 - 10 of 15

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Chaotic application for Industrial Microwave Heating System without mode-stirring mechanism
(2012-08-10)
Areejit, Suwilai
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Payakkawan, Poomyos
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Jansri, Anurak
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Klomkarn, Kitdakorn
;
Aoyama, Hisayuki
More than two decades, chaos has been attracted many attention from scientists and engineers. Chaotic system phenomenon seems to be random for observers, but it is deterministic for a designer. System of Chaos attractors have been constructed more than a thousand of chaotic patterns. But implementation of chaos in engineering is still needed for real application. For this sake, the research objective is to search for new chaotic applications for Industrial Microwave Heating System without mode-stirring mechanism. The result shows that the performance of the proposed system is better than the conventional system in the rise of temperature. Eventually, the proposed method can be applied in the real application. © 2012 IEEE.
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Design and implementation of continuous microwave biomass carbonization system
(2012-08-10)
Payakkawan, Poomyos
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Areejit, Suwilai
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Jansri, Anurak
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Klomkarn, Kitdakorn
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Aoyama, Hisayuki
This paper discusses a new design and implementation of a microwave heating for continuous biomass GHz frequency. This new technique is developed to control electromagnetic field distribution inside the microwave heating cavity reactor of biomass carbonization. A chaotic mode pattern microwave generator is used for the technique. The result shows that the technique gives the cost and time-saving, easy to control, and effective performance. © 2012 IEEE.
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Force sensor and its application to tuning fork response measurement
(2013-10-29)
Areejit, Suwilai
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Jansri, Anurak
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Sooraksa, Pitikhate
Generally, force measurement of nano-scale material widely employs a quartz tuning fork which is resonant mechanical sensors on 32.768 kHz resonance frequency and is powerful tools. But, this paper designs the sensor by using tuning fork on 3 kHz and modifies the tuning fork by a tiny pin adhesive into the end of prong. In experiment, measurements of electrical signal from piezoelectric are study of load-mass effect and pin position. 2 touching techniques are considered: a shear-force type and a tapping mode type with highly position movement system. Silicone rubber, vinyl eraser and hydrogel are elastic material for testing. Results show that both weight and position of pin is significant influencer for resonance frequency and quality factor of sensor. Finally, the tuning fork response experimentation shown this method can be applied to material classification. © (2013) Trans Tech Publications, Switzerland.
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The Development of a Web-Based Questionnaire for Automatic Risk Assessment Analysis of Unmanned Aircraft
(2025-01-01)
Yenpiem, Siriporn
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Yoneyama, Keito R.
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Yooyen, Soemsak
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Banchong-Aksorn, Sasicha
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Jansri, Anuruk
One of the Civil Aviation Authority of Thailand's goals is to enhance the country's economic competitiveness through innovation. This has led to an increase in the number of commercial unmanned aircraft being used in urban areas, which presents both challenges and opportunities. One challenge is the absence of an effective air traffic management system to accommodate this growth, leading to airspace congestion and potentially hazardous situations. This study develops a risk assessment model, based on the minimum requirements of international standards, in the form of a questionnaire designed to swiftly calculate risk levels associated with unmanned aircraft operations. The methodology includes extensive secondary and primary research, as well as the analysis of key components before converting the findings into a web application. The resulting web-based tool helps categorize aircraft operations into three levels: low (open category), medium (specific category), and high (certified category), which aligns with the airspace guidelines. This tool aids in evaluating and analyzing flight activities, facilitating the safe integration of unmanned aircraft into the airspace and reducing the risk of accidents.
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The Development of an Automated Technology for Unmanned Aircraft CNS/UTM in Compliance with Safety and Security Measures of the State
(2025-01-01)
Yenpiem, Siriporn
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Yooyen, Soemsak
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Banchong-Aksorn, Sasicha
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Yoneyama, Keito R.
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Jansri, Anurak
This research project supports the Senate's study and represents the government committee on promoting and developing the use of unmanned aircraft in low-altitude flights, with safety measures in accordance with the International Civil Aviation Organization's and Civil Aviation Authority of Thailand's minimum requirements. The main objective of this study is to create an innovative approach to enhance the country's competitiveness, which must also be accepted at the national and international level. This is based on the reasons for building infrastructure and networks for communications, navigation, and surveillance analysis to prevent aircraft from colliding and assessing the aircraft's behaviors in both segregated and current manned air traffic-controlled airspace. The study supports the utilization of air traffic management for the Unmanned Aircraft System Traffic Management (UTM) Platform, which is a necessary tool in facilitating the policy of using unmanned aircraft for commercial use. It can be extended for practical uses and further development in areas where there is an integration between manned and unmanned aircraft, both small and large for sustainable future development. It consists of basic theoretical analysis, system requirements for flight operations, and applications for low-altitude operations (within 500 feet and weighing less than 150 kilograms). The study methodology for constructing a quantitative and qualitative method includes: 1.Creating a system for requesting risk assessment levels for flight operation and program development 2.Creating systems for managing aviation mapping and geo-awareness information 3.Creating a system for requesting activities, flight and flight plan authorization, examining flight areas, and communication network identifications. Which will be used with tracking, advising, helping, recording, and monitoring aircraft behaviors. 4.Creating a system for examining other aircraft, airspace traffic information, obstacles during flight operations, and deconflicts. This research lays the foundation for future studies in the aviation sector, including the development of unmanned aircraft system traffic management and urban air mobility systems, and the integration of unmanned with manned aircraft, regardless of aircraft type. However, continuous national and international research will remain critical.
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Tree robot: An innovation for STEAM education
(2016-12-14)
Sooraksa, Pitikhate
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Sakorntanant, Sakda
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Jansri, Anurak
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Klomkarn, Kitdakorn
Embracing complexity in today's world makes students impatient to learn following the conventional chalk-and-talk style of teaching, and yet plenty of helpful IT-techniques are available and surrounded. This talk provides a care-and-feeding of STEAM education, namely 'Science, Technology, Engineering, Art, and Mathematics', offering a new way of utilizing matters of natural learning to be 'live'. A tree robot is created as an instrument to help students achieve the 21<sup>st</sup> century learning skills. As a result of many hours in experiments with the proposed pedagogy, the robot helps redefine what attention is and how to use it innovatively.
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Further investigation on trajectory of chaotic guiding signals for robotic systems
(2004-12-01)
Jansri, Anurak
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Klomkarn, Kitdakorn
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Sooraksa, Pitikhate
Chaotic signals have been used and can be generated by a chaotic circuit for controlling trajectories of mobile robots. Application of chaotically robotic systems may be employed for cleaning and patrolling tasks, when information of areas at work is not available. This paper presents an investigation on trajectory of chaotic guiding signals generated by Chua's attractor and Arnold's non-attractor in five given situations. According to the simulation, with best adjusting parameters for both signals, the trajectory generated from Chua's pattern has covered more areas than that of Arnold's counterpart for all testing cases.
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Chaotic control for the reactor of a continuous microwave biomass carbonization process
(2015-04-23)
Payakkawan, Poomyos
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Jansri, Anurak
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Phumpho, Suwilai
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Tong-Aram, Direk
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Keattipun, Pithuk
This paper presented a new heating technique using chaotic mode pattern generator to control a uniform- heating distribution of multi-feed microwave cavity in order to heat the reactor of a pilot-scale continuous microwave biomass carbonization process This technique not only suggest the potential of the proposed system which operates more smoothly but also reduce electric power consumptions of the continuous microwave biomass carbonization process.
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On comparison of attractors for chaotic mobile robots
(2004-12-01)
Jansri, Anurak
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Klomkarn, Kitdakorn
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Sooraksa, Pitikhate
In case of no map, trajectory planning could be a difficult task for robot motions to navigate around the assigned patrol areas. Chaotic mobile robots that move in chaotic patterns can be used to solve this problem. This paper is motivated by the question in seeking for suitable chaotic pattern for the aforementioned problem. Twenty-five chaotic patterns generated from various chaotic signals for the robot's path are compared by computer simulation under given conditions. © 2004 IEEE.
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Enhanced model and fuzzy strategy of air to fuel ratio control for spark ignition engines
(2012-09-01)
Jansri, Anurak
;
Sooraksa, Pitikhate
Various mathematical models for the air to fuel ratio and control for spark ignition (SI) engines have been proposed to satisfy technical specifications. This paper reveals an improvement of the mean value model (MVEM) and a simple yet effective nonlinear control to enhance the air to fuel regulator. The regulator is designed by using a discrete fuzzy PI algorithm, which provides easy tuning, robustness, and rapid development with a simple architecture. Effects on the dead time, exhausted delay, time-varying air flow and chaotic disturbance are also included. The computer simulation results show satisfactory performance based on standard evaluation criteria. The proposed model has a great potential for practical implementations. © 2011 Elsevier Ltd. All rights reserved.
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Jansri, Anurak

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