ProceedingISPC2021

9th INTERNATIONAL SENIOR PROJECT CONFERENCE Transforming Society , Defining the Future Faculty of Engineering King Mongkut’s University of Technology Thonburi

Message from the Dean Welcome to the 9th International Senior Project Conference. I would like to welcome all of the representatives, distinguished guests, and academic partners of King Mongkut’s University of Technology Thonburi or KMUTT. It is our privilege to host this conference once again. I would also like to acknowledge our partner universities from around the world for their continued support and assistance throughout the years. This year the ISPC theme is “Engineering 4.0,” which will showcase the expertise of our young and talented engineers. This annual conference allows our students to present their research to fellow students and professors from other countries. This is vital for all participants to exchange knowledge, learn new things, build international relationships, and gain cultural experiences together. KMUTT has always believed in the power of research in shaping the world. This is why we have promoted problem-based learning so that our students can learn various concepts through solving actual problems, both in class and elsewhere. This powerful technique ensures that our students will be able to handle various challenges when it comes to the real world. Our sole purpose is to enable them to fulfill their true potential for the dreams and thus becoming our future leaders. This annual conference is not simply about academic exchange; however, it is aimed at raising cultural awareness and global appreciation for the students to build a strong foundation for the society. This is why we are grateful to have more and more partner universities from across the globe joining us in this conference. On behalf of the Faculty of Engineering and KMUTT, I would like to thank all of you for your great support. For the partner universities sending the students for the first time, we would appreciate if you could kindly send the students again in the future. I personally hope that ISPC is just one of the many opportunities that we can provide our students with academic and cultural collaborations. Professor Chai Jaturapitakkul, Ph.D. Dean, Faculty of Engineering

General Chair Assoc. Prof. Dr. Asawin Meechai Vice Chair Dr. Julapot Chiravachradej Organizing Committee Assoc. Prof. Dr. Natasha Dejdumrong Assoc. Prof. Dr. Benjamas Panomruttanarug Asst. Prof. Dr. Aphinat Ashakul Asst. Prof. Dr. Thorin Theeradejvanichkul Asst. Prof. Dr. Aluck Thipayarat Asst. Prof. Dr. Anawach Sangswang Asst. Prof. Dr. Chutima Kongvarhodom Asst. Prof. Dr. Saroj Saimek Dr. Paiboon Choungthong Dr. Weerawan Laosiripojana Dr. Thapat Silalertruksa Dr. Kajornvut Ounjai Advisory Committee Prof. Dr. Chai Jaturapitakkul Assoc. Prof. Dr. Tawich Pulngern

Program for International Senior Project Conference 2021 Time zone in Thailand (GMT+7) 8:30 - 8:40 Opening speech by Asst. Prof. Dr. Hong-ming Ku, Assistant to the President for 8:40 - 9:10 Internationalization 9:10 - 9:20 9:20- 10:40 Special Keynote: Dr. Sally E. Goldin, Lecturer, Computer Engineering Department 10:40 - 11:00 Break 11:00 - 12:00 Presentation session I (including Q&A) Presentation session IV (including Q&A) 12:40 - 13:40 13:40 - 15:20 Room 1 Room 2 - A101: 9:20-9:40 - B101: 9:20-9:40 - A102: 9:40-10:00 - B102: 9:40-10:00 - A103: 10:00-10:20 - B103: 10:00-10:20 - A104: 10:20-10:40 - B104: 10:20-10:40 Break Presentation session II (including Q&A) Presentation session V (including Q&A) Room 1 Room 2 - A105: 11:00-11:20 - B105: 11:00-11:20 - A106: 11:20-11:40 - B106: 11:20-11:40 - A107: 11:40-12:00 - B107: 11:40-12:00 - A108: 12:00-12:20 - B108: 12:00-12:20 - A109: 12:20-12:40 - B109: 12:20-12:40 Lunch Presentation session III (including Q&A) Presentation session VI (including Q&A) Room 1 Room 2 - A110: 13:40-14:00 - B110: 13:40-14:00 - A111.: 14:00-14:20 - B111.: 14:00-14:20 - A112: 14:20-14:40 - B112: 14:20-14:40 - A113: 14:40-15:00 - B113: 14:40-15:00 - A114: 15:00-15:20 - B114: 15:00-15:20 15:20 - 15:45 Award & closing ceremony

KEYNOTE International Senior Project Conference 2021 Keynote Shaping the Uncertain Future Sally E. Goldin, Ph.D. Foreign Expert Department of Computer Engineering, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand Abstract In 2019, King Mongkut’s University of Technology Thonburi celebrated the sixtieth anniversary of its founding. To mark this event, KMUTT adopted the slogan: “Transforming society. Defining the future.” At the time, I thoroughly approved. I was delighted to see my university acknowledge its responsibilities to society and claim a leadership role in solving Thailand’s problems. In 2021, this high-minded sentiment sounds pretentious, even arrogant. Who would have defined a future that included a global pandemic which has killed millions, brought the world economy to its knees and disrupted the lives of nearly everyone on the planet? If nothing else, COVID-19 may have taught us some humility – a characteristic not strongly associated with engineering. Engineers tend to be optimists. Aware of the power of science and technology, we believe that we can harness that power to eliminate today’s difficulties. We dream of bountiful tomorrows sustained by advances in medicine, genetics, computing, materials science, space exploration and so on. Unpredictable, catastrophic, globally disruptive phenomena like COVID-19 shatter that world view. COVID has been a wake-up call. Perhaps it will encourage us to address the other existential challenge facing humanity, namely, climate change and the conflicts it will inevitably generate. Science and technology are not sufficient to solve this problem, but they are necessary. We engineers cannot define the future, but we can contribute to shaping it in more positive directions by demonstrating competence, compassion and commitment.

SALLY E. GOLDIN, PH.D. Department of Computer Engineering, Faculty of Engineering, King Mongkut’s University of Technology Thonburi Sally E. Goldin received her bachelors and initial masters degrees from Brown University (Providence, Rhode Island) and a second masters and PhD from Carnegie-Mellon University (Pittsburgh, Pennsylvania). After spending several years as a researcher in the Computer Science group at the celebrated Rand Corporation, she moved to industry to work as a software engineering consultant, system architect and project manager. In the mid-nineteen eighties, Dr. Goldin came to Thailand to teach remote sensing image analysis at the Asian Institute of Technology, seconded by the United States Agency for International Development (USAID). This two-year posting kindled her long-standing interests in geospatial computing and technology for international development. After returning to the U.S., she and her partner Mr. Kurt Rudahl jointly developed and distributed Dragon/ips™, the first satellite image processing software to run on off-the-shelf personal computers (http://www.open-dragon.org). She came back to Thailand in 2003 to teach in the international program of KMUTT Department of Computer Engineering. In her fifteen years at KMUTT, Dr. Goldin has supervised nearly two dozen senior projects, emphasizing not only the final products of the project work, but also the project design and implementation process. Her project groups have won numerous awards, both within KMUTT and externally. Dr. Goldin’s research focuses on novel geoinformatics applications, especially to support disadvantaged or marginalized communities, for community-based tourism, and for disaster mediation and response. She also works in the areas of software engineering process and tools and user interface design. Recently she developed a new graduate level curriculum to teach Community and Participatory GIS, as part of a project funded by the European Union and Erasmus+.

CONTENT A101 Recovery of Butanol from ABE Solutions by Combined Gas Stripping-Absorption: A 1 Simulation Study 2 Chaiyakate, C., Feepakphor, Y., Phonprasit, S. 3 4 A102 Active Dried Yeast Formulation 5 Kanpet, P., Ongtong, C., Somkid, T. 6 7 A 103 Sterilization of Enterococcus and Zooplankton using Plasma in Seawater 8 Teratani, I., Saito, N., Akiyama, M. 9 10 A104 Production of Biolubricant from Rice Bran Wax 11 Hanspal, S., Petchruan, P., Sattayawatee, O. 12 13 A105 Heat Exchanger Network Design for Sugar Plant 14 Thanongsak, S., Naknoi, N., Chawengtammarat, P. A106 Specific Energy Consumption and Dryer Performance of Cassava Pulp by using Batch Tray Dryer Boonsue, Y., Srisut, J., Tiamchaipan, C. A107 COMSOL Multiphysics 5.6 Simulation of Direct Current Atmospheric Pressure Plasma Torch Pratama, A.D., Kencana, S.D. A108 Determination of Effective Moisture Diffusivity of Mango Slab by a Couple Heat and Mass Transfer including Shrinkage using Arbitrary Lagrangian-Eulerian Approach Sitthikasamkit, C., Yhupaet, T., Limpawittayakul, T. A109 Developed Physical and Thermal Property of Rigid Polyurethane Foam for Insulator from Palm and Canola Oil with Jute Fiber Additive Phomklang, T., Yensatid, S., Teerawongpinyo, S. A110 Effect of Crosslinking Agent on Properties of Hydrogel from Polyvinyl Alcohol Blended with Sericin Silk Protein Saysaeng, C., Hengpapom, N., Kamchan, T., Phiriyawirut, M. A111 Effect of Lanthanum Addition on Microstructure and Corrosion Resistance of AA5083 112 Aluminum – Magnesium Alloy Keram, B., Wongrungaudom, M., Tathip, S. Method on Growing the Sn Whisker Growth and the Effect of Atmospheric Pressure Plasma Treatment on its Mitigation Huang, M.S., Riza, A.N., Wu, A.T., Kencana, S.D. A113 Laminar Crosslinked Starch Composite Foams Reinforced with Nypa Palm Leaf or A114 Bamboo Leaf Ariyapornpong, T., Simaksuk, K., Sertpannuk, J. Surface Modification of Polymeric Materials in Footwear Industry by Atmospheric Pressure Plasma Technology Safitri, M., Kuo, Y., Sheng, H., Wang, H., Ko, C., Kencana, S.D.

B101 Development of Deoderant Product by using Sericin Extraction from Cocoons 15 Thongkamkeaw, J., Sirlawong, P., Chaichana, S. 16 B102 The Development an Active CMC Hydrocolloid Wound Dressing with 17 Andrographolide 18 19 Thavanapong, T., Nuanyai, S., Prasansua, S. 20 B103 Basic Sign Language Training Device 21 Jitsilsophon, P., Inboon, W. 22 B104 Development of Robot Arm System for Underwater Assembly 23 Higashimoto, Y., Miyoshi, T. 24 B105 Intensification of Process Design and Modeling of Rabies Vaccine Production 25 Sintarasirikulchai, K., Chotiwittaya, N., Sammatat, C., Macharoen, K., Meechai, A. 26 27 B106 Study of Cat Litter Production from B-Plaster using Carboxymethyl cellulose and Guar 28 Gum as Binders 29 Naknomanee, L., Chaiyaras, R., Boonprapha, W. B107 Modelling the Loading Process for Subsea Cables Foy, M. B108 Synthesis Thermoresponsive Membrane by Grafting PNIPAM Crosslinking with Sodium Acrylate Hydrogel Improving the Oil Separation Efficiency Sukcheunluethai, P., Khumphat, S., Kwannguen, N. B109 Study of Diet - Microbiome Relationship and Microbe-Microbe Interactions for Human Gut Microbiome Sritha, N., Hianghakun, P., Meechai, A. B110 Anti-Germs UVC Box Kaewareelarp, K., Janopas, P., Theerakul, S. B111 Smart Cat Feeder Rangsrisakolsawat, N., Prompratoom, P., Saengsakul, K. B112 Development of an Intelligent System for Surgical Tools Inspection using Deep Learning Shaji, V., Ganguly, S. B113 Find the Song: Music Identification System by User Input Kulkraijak, P., Kiengsiri, M. B114 Simbot (Robot Simulation Video Game) Petchploy, N., Varinsirirux, P., Kuntonjinda, S. Index

The 9th International Senior Project Conference in Engineering and Technology (ISPC 2021) Recovery of Butanol from ABE Solutions by Combined Gas Stripping-Absorption: A Simulation Study Chatchadaporn Chaiyakate, Yanisa Feepakphor, and Suchanat Phonprasit Department of Chemical Engineering, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand Abstract Biobutanol is considered a promising alternative to replace energy from fossil fuels partly. However, there is an issue in biobutanol production due to the toxicity of butanol to the butanol producing bacteria. Consequently, the product concentration is too low, and it is not worth commercial production. The reduction of butanol concentration helps in solving the problem. In this project, the combination of gas stripping and absorption processes using the Aspen Plus program is used to simulate separation butanol from an acetone-butanol-ethanol aqueous solution with acetone-butanol-ethanol found in the actual fermentation broth. N2 is used as the carrier gas in the process. After the gas stripping, the stripped vapor is flowed into the aqueous solution containing ethyl stearate,1,1,1-trichloroethane, and oleyl alcohol. The effects of carrier gas flow rate, ethyl stearate,1,1,1-trichloroethane, and oleyl alcohol selectivity on butanol recovery are evaluated. The N2 flow rate was 80 g/h. The butanol production rate and the stripping rate were 0.42 g/h. The concentration in the stripping column is 7.03 g/L. Therefore, it is non-toxicity for bacteria. The expected result, oleyl alcohol would give the highest selectivity of butanol. The application of this combined process in the actual fermentation could reduce the toxicity of butanol to the butanol-producing bacteria. -1-

The 9th International Senior Project Conference in Engineering and Technology (ISPC 2021) Active Dried Yeast Formulation Pornnapat Kanpet, Chatchaya Ongtong, and Thitiporn Somkid Department of Chemical Engineering, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand Abstract The objective of this project was to study the effect of additives on the viability percentage of active dried yeast. Guar gum, Sorbitan Monostearate and Calcium Monohydrogen phosphate were used as additives. The concentrations of additives, Guar gum, Sorbitan Monostearate and Calcium Monohydrogen phosphate, were varied from 0.5 to 2.75%wt, 0.5 to 5%wt, 0.2 to 2%wt, respectively. The compressed yeast was mixed with additives then formed into pellets and dried in a hot air oven at 50°C. The samples were taken every 15 minutes until 90 minutes. Cell counting with a Hemocytometer was used to determine the viability percentage. The results showed that the viability percentages were ranged from 6.83 to 33.51%. It found that the viable cells were fluctuated when the concentrations of Guar gum and Calcium Monohydrogen phosphate increased. However, the increasing concentrations of Sorbitan Monostearate were directly proportional to the viable cells. In conclusion, Sorbiatan Monostearate was the most effective additive in this experiments. -2-

The 9th International Senior Project Conference in Engineering and Technology (ISPC 2021) Sterilization of Enterococcus and Zooplankton using Plasma in Seawater Issei Teratani, Namito Saito, and Masahiro Akiyama Department of Electrical Electronic and Communication, Faculty of Science and Technology, Iwate University, Iwate, Japan Abstract The convention requires that the IMO performance standards of ballast water be applied in a stepwise manner to ships undertaking international voyages in line with the year of building and the ballast tank capacity, with all ships required to adopt the standard. Our work is sterilization of enterococcus and zooplankton using electrical discharges in seawater and DBD. Target values are same as effluent standards of ballast water from IMO. It is necessary to remove harmful organisms from ballast water because of its adverse effects such as disturbing the ecosystem of the area where it is discharged. Therefore, we used underwater discharge and DBD to treat ballast water. Maximum voltage of pulsed power generator is 30 kV, a size of discharged reactor is 10 cm x 10 cm x 10 cm, volume of water is 500 mL, and the conductivity is 45,000 [µS/cm] which is assumed to be the conductivity of seawater level. Two electrodes were used for underwater discharges and DBD. In order to prevent the water temperature from rising during the discharges in underwater discharges, the experiment was conducted while cooling the water with ice. For the underwater discharge, a tungsten needle electrode was used and fixed 3 cm away from the cathode electrode (8 cm × 8 cm plate electrode). For the DBD, a copper electrode (3 cm × 3 cm) on the polypropylene was attached to the dielectric and fixed 0.5 cm away from the water surface. In the case of Enterococcus, it was discharged from 0 to 300000 times. 2 mL was collected after number of discharges. After discharges samples were incubated at 35 °C for 48 ± 2 hours in the incubator. In the case of Artemia, it was discharged from 0 to 300000 times. When a predetermined number of shots was reached, Artemia’s number was counted. Result of enterococcus, the ballast water standard was reached with 300,000 discharges in water, and 175,000 discharges in DBD. In the case of zooplankton (Artemia), underwater discharge killed 50 to 0, DBD killed 50 to 16. Underwater discharge was able to reach the ballast water standard. Shock waves of underwater discharge are effective for zooplankton. Therefore, plasmas were obtained new knowledge from our experiments. -3-

The 9th International Senior Project Conference in Engineering and Technology (ISPC 2021) Production of Biolubricant from Rice Bran Wax Surin Hanspal, Phee Petchruan, and Onnicha Sattayawatee Chemical Engineering Department, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand Abstract Rice bran oil industry generates a by-product called rice bran wax (RBW) in the winterization step during the production process. RBW can be used as a precursor for developing varieties of value-added chemicals such as fruit coating, oleogel, ointment bases, and lubricant bases. The purpose of this study is to valorize RBW by investigating possible methods to produce biolubricants, i.e., estolides and trimethylolpropane-triesters from RBW. Even though biolubricants made from plant-based oils via chemical modification reactions are biodegradable and non-toxic, the production of biolubricants starting from plant-based wax, including RBW has not been reported. This research provides an overview of the synthesis routes, properties, and applications of several bioluricants that may be applicable to RBW. Various chemical reactions are commonly used to prepare biolubricants, including hydrolysis, transesterification, oligomerization, epoxidation and estolide formation. Strengths and shortcomings of each methodology are discussed. For example, epoxidation and estolide formation can improve the thermo-oxidative stability, but their processes require high operational cost. The investigated chemical modification reactions here will be then performed in the future to explore the feasibility of producing RBW-based biolubricants. -4-

The 9th International Senior Project Conference in Engineering and Technology (ISPC 2021) Heat Exchanger Network Design for Sugar Plant Suphawit Thanongsak, Nutnicha Naknoi, and Pichaya Chawengtammarat Department of Chemical Engineering, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand Abstract The aim of the study is to enhance the efficiencies of the unit existing heat exchanger network for the sugar production process by using pinch analysis. From the research, the sugar production process was focused on juice clarification and evaporation. In this project, it is divided into 2 cases. Firstly, all streams which can exchange the heat load were considered to design the heat exchanger network. Secondly, all of the streams that do not include evaporation streams were considered. Then, modelling the process using Aspen Plus by following data from the research. From the simulation, in the first case, the input data are deviated from the research paper due to assumption of fresh feed stream composition and pressure, pressure of equipment, and flow rate of Lime. And the temperature of the flash drum is also assumed because the temperature in the research is irrational. However, all the flow rate stream results from simulation is approximately with the data from research. Furthermore, the utility cost is 14,550,400 dollars per year and deviates from the research. Since the clarification process is without the exhaust streams. In the second case, the simulation was not complete as the original plant from research. For the further step, the plant in Aspen Plus will be modified by using pinch analysis. Then, the process utility cost will be analyzed and matched the streams at the minimum temperature difference appropriately by Aspen Energy Analyzer. The process utility cost will be compared with an early plant. The expected results are optimum area target, reducing process utility cost, and improving the process. -5-

The 9th International Senior Project Conference in Engineering and Technology (ISPC 2021) Specific Energy Consumption and Dryer Performance of Cassava Pulp by using Batch Tray Dryer Yanisa Boonsue, Jiraporn Srisut, and Chanisara Tiamchaipan Department of Chemical Engineering, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand Abstract This project aims to investigate a specific energy consumption, a dryer performance and a characteristic of a cassava pulp drying process in a batch tray dryer. The cassava pulp used in the experiment is a by-product of a tapioca starch factory. The cassava pulp that comes out of the factory contains moisture about 80 % wet basis. It can be used as fuel for any heating processes e.g. boiler or furnace. The dehumidification of the cassava pulp is required to improve the combustion efficiency. The experiment was performed by drying the cassava pulp in a batch tray dryer with four tray layers to find the drying characteristics. The varied parameters are drying temperature, air velocity and initial moisture content. The final moisture of the cassava pulp was about 4-6% wet basis. The expected result is specific energy consumption, dryer performance and drying characteristics of cassava pulp. Keyword: Cassava Pulp, Drying, Batch Tray Dryer -6-

The 9th International Senior Project Conference in Engineering and Technology (ISPC 2021) COMSOL Multiphysics 5.6 Simulation of Direct Current Atmospheric Pressure Plasma Torch Ade Djieneka Pratama and Sagung Dewi Kencana Department of Mechanical Engineering, College of Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan, R.O.C. Abstract A non-thermal atmospheric pressure plasma jet (APPJ) has been established for its technological potential for materials processing in any industrial fields, e.g. in fuel cells applications, in semiconductors, in agricultures, etc. APPJ with direct current power generation has many advantages with regards to its adjustable parameters, i.e applied frequency, applied power, working distance, etc. However, due to the atmospheric working pressure of APPJ, there is still a constrain on understanding the temperature distribution along the electrode region. Electrode temperature distribution is a key role on producing a sufficient plasma reactive species. To model the electrode temperature distribution of direct current (DC) APPJ using argon (Ar) gas source, a COMSOL® Multiphysics 5.6 software programme is applied. The software is flexible enough to accommodate multiple prediction method for the electrode temperature distribution, arc shape, length, and local temperature distribution. In this study, the Multiphysics software focuses to implement two plasma system geometries using several assumptions, i.e. local thermodynamic equilibrium (LTE), steady state equations of fluid mechanics conservation, heat transfer, and electromagnetics. An atmospheric pressure boundary environment of 60 mm and 120 mm heights from the torch exiting point (working distance) are created to compare the local temperature distribution with the experimental work. Several quantitative and qualitative results of both working distance in 2D and 3D are obtained, e.g. (i) local temperature distribution, which range from ±226 to ±2200 ºC and ±340 to ±1800 ºC for 60 and 120 mm working distance, respectively; (ii) electrode temperature distribution (cathode), which range from ±700 to ±1026 ºC (iii) the electric potential, which is concentrated at the cathode tip; (iv) magnetic flux density, that occurs along the cathode surface area; (v) velocity pattern, where the plasma head (exiting point) plays significant role; and (vi) pressure distribution, which reveals the location of pressure drop. Keywords: atmospheric pressure plasma jet, local temperature distribution, local thermodynamics equilibrium, COMSOL® Multiphysics 5.6, magneto-hydrodynamics (MHD) equation. -7-

The 9th International Senior Project Conference in Engineering and Technology (ISPC 2021) Determination of Effective Moisture Diffusivity of Mango Slab by a Couple Heat and Mass Transfer including Shrinkage using Arbitrary Lagrangian-Eulerian Approach Chayanat Sitthikasamkit, Thunyatorn Yhupaet, and Teerapat Limpawittayakul Chemical Engineering Department, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand Abstract The aims of this work are to study the drying kinetics of mango slab and develop a model of heat and mass transfer including shrinkage for predicting moisture and temperature changes of ‘Nam dok mai’ mango slab during drying. Quality of the dried mango was considered in terms of color, texture, and shrinkage. The mathematical model was solved by the Arbitrary Lagrangian-Eulerian finite element method. The effective diffusivity of moisture inside the mango was determined and explained by Arrhenius-type equation. The optimization technique with a direct search method was used to determine the constant parameters in the Arrhenius equation. The experiment was carried out at the drying air temperatures of 50, 60, and 70°C and a superficial air velocity of 1 m/s. The predicted moisture content and temperature were validated with experimental moisture content and temperature during drying. The developed model from this work will be able to predict the moisture content and temperature distribution with the high accuracy and be a useful tool for determining the optimum drying condition for mango. Another expected result is to provide the useful information of drying mango with premium quality for the dried fruit industry. -8-

The 9th International Senior Project Conference in Engineering and Technology (ISPC 2021) Developed Physical and Thermal Property of Rigid Polyurethane Foam for Insulator from Palm and Canola Oil with Jute Fiber Additive Tunchanok Phomklang, Sudarampai Yensatid, and Suppakorn Teerawongpinyo Department of Chemical Engineering, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand Abstract This research aimed to synthesize developed physical and thermal property of the rigid polyurethane insulation foam from palm polyol and rapeseed polyol with an addition of Jute fiber to increase its compressive strength. The reason that we decide to use palm polyol and rapeseed polyol because both palm polyol and rapeseed polyol can modify to have a higher hydroxyl value, before it was later polymerized with polymeric diphenylmethane diisocyanate (PMDI) and both of them were easy to find and economical. The obtained palm polyol and rapeseed polyol was reacted with polymeric diphenylmethane diisocyanate in the presence of water (blowing agent), N,N-dimethylcyclohexylamine (catalyst) and polydimethylsiloxane (surfactant) to produce rigid PU foam. The effects of the amount of both palm polyols and rapeseed polyols on foam properties (i.e. density, compressive strength and thermal behaviors) were studied. Then compare with rigid PU foam with jute fiber additive. The physical and mechanical properties of the foam were studies by Scanning electron microscopy (SEM), Thermal conductivity measurement and measured in accordance with the ASTM D 1622-63 standard. The obtained polyol acceptable by industry industry-standard OH values of 348.4 and 352.65 mgKOH/g of palm oil polyol and rapeseed oil polyol respectively and were used to prepare rigid PU foam. The expected results from the experiment were expected to have density, compressive strength and thermal conductivity were acceptable by industry- standard. The result of adding jute fibers to the best ratio of palm polyol and rapeseed polyol was expected to increase compressive strength. The benefits of this research were the synthesis of polyurethane foam from palm oil polyol and rapeseed oil polyol, which was industry standard and biodegradable. -9-

The 9th International Senior Project Conference in Engineering and Technology (ISPC 2021) Effect of Crosslinking Agent on Properties of Hydrogel from Polyvinyl Alcohol Blended with Sericin Silk Protein Chayanis Saysaeng, Namitta Hengpapom, Thanapol Kamchan, and Manisara Phiriyawirut Department of Tool and Materials Engineering, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand Abstract This work prepared polyvinyl alcohol (PVA)/silk sericin (SS) blended hydrogel by used citric acid as crosslinking agent. Effect of CA concentrations and PVA/SS blend ratio on properties of hydrogel were investigated. PVA/SS blended hydrogel was prepared by blending PVA solution 10%wt and silk sericin solution 3%wt by using citric acid as crosslinking agent at 5- 20%wt of PVA and stirring at temperature 50℃ for 2 hr. PVA/SS hydrogels were evaluated for chemical structure with FTIR technique, film clarity, resistance to tensile, swelling in the water, including the rate of water vapor permeability. PVA /Sericin hydrogel is expected that effective and safe as a wound dressing. -10-

The 9th International Senior Project Conference in Engineering and Technology (ISPC 2021) Effect of Lanthanum Addition on Microstructure and Corrosion Resistance of AA5083 Aluminium - Magnesium Alloy Bussara Keram, Manatsanan Wongrungaudom, and Sasiprapa Tathip Tool and Materials Engineering, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand Abstract Objective of this project is to study the effect of lantanum addition on microstructure, mechanical properties and corrosion resistance of AA 5083 aluminum magnesium alloy. The alloy with 0.6 wt%La addition was melt by using induction furnace at 690°C and then cast into the permanent mold. The alloys were hot rolled at 450°C. Microstructure and mechanical properties were studied, it was found that AA 5083 aluminum magnesium alloy with 0.6 wt%La addition has better mechanical properties than AA 5083 aluminum magnesium alloy which is not lanthanum added. The alloy was prepared for anodizing process with two different substances; nickel fluoride and stearic acid. The use of stearic acid in the surface sealing process will result in a more uniform oxide film layer than the nickel fluoride solution. The anodizing can increase the efficiency of corrosion resistance to the AA 5083 aluminum magnesium alloys. From the corrosion resistance test with 5 wt.% NaCl of salt water spray and potentiostat technique, it was found that sealing with stearic acid could improve corrosion resistance of aluminum alloys better than those with nickel fluoride solution. Keyword: Anodized, Lantanum, Aluminum alloy 5083, Potentiostat technique, Salt spray test -11-

The 9th International Senior Project Conference in Engineering and Technology (ISPC 2021) Method on Growing the Sn Whisker Growth and the Effect of Atmospheric Pressure Plasma Treatment on its Mitigation 1Missie SL Huang, 1Ahmad Nur Riza, 2Albert T Wu, and 1Sagung Dewi Kencana 1Department of Mechanical Engineering, College of Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan, R.O.C. 2Department of Chemical and Materials Engineering, National Central University, Taoyuan, Taiwan, R.O.C. Abstract The termination of lead-based materials on integrated circuits (ICs) has made a pure tin to be better replacement materials. However, tin tends to form whisker. Tin whiskers are spontaneous hair-like metallic growths that burst out of plated surfaces. Tin whisker is a single-crystal, highly conductive filament, which can grow over time and causes short-cut circuit or device failure in the field. It is believed that the internal or residual stresses within the tin plating is the main issue on the whiskers growth. Whiskers can also break loose from the surface of the plated material from mechanical shock or vibration, and can cause problems as debris in optical devices, microelectromechanical devices, etc. Therefore, whiskers mitigation is important. In this study, the results of Sn whisker formation and growth for pure tin on copper substrate are discussed. Electroplating process is used to coat the tin on copper. The coated-tin thickness is controlled by different parameters, such as current, voltage, and submersion time. Mechanical stressing is used to grow the whiskers. In-situ observation of the whiskers growth is conducted via field-emission scanning microscope in ageing times: 0, 7, 14, and 28 days. The results showed that some whiskers can grow up to 34 um height in 7 days. Furthermore, an atmospheric pressure plasma jet with Ar/H2 gas source is used to mitigate the whiskers growth. The results’ details on the whiskers growth with and without plasma treatment are outlined. Keywords: integrated circuits, pure tin, whiskers growth, whiskers mitigation, mechanical stress, atmospheric pressure plasma. -12-

The 9th International Senior Project Conference in Engineering and Technology (ISPC 2021) Laminar Crosslinked Starch Composite Foams Reinforced with Nypa Palm Leaf or Bamboo Leaf Tungrat Ariyapornpong, Kanokwan Simaksuk, and Jinnaphat Sertpannuk Tool and Materials Department Engineering, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand Abstract Laminar crosslinked starch composite foams were prepared form glyoxal crosslinked tapioca starch and use nypa palm leaf or bamboo leaf 2% wt. of starch as reinforcing layers. Leaves were treated with silane coupling agents, tetrathoxy silane (TEOS) at 10 % content and then the starch composite foam was formed by compression molding. Effect of nypa palm leaf or bamboo leaf on water resistance and mechanical properties of laminar crosslinked starch composite foams reinforced with leaves were investigated. An incorporate of treated nypa palm leaf or bamboo leaf to starch foam as laminar reinforcing layers was improved foam morphology of composites results to increased density, impact strength and water resistance of the composite foams. From investigation, laminar crosslinked starch composite foams with nypa palm leaf show higher mechanical properties but lower water resistance than those of laminar crosslinked starch composite foams with bamboo leaf. Both nypa palm leaf and bamboo leaf can be reinforcement for laminar crosslinked starch composite foams which have suitable properties for use as foam packaging. Keywords: Starch form, Laminar composite, Nypa palm leaf, Bamboo leaf -13-

The 9th International Senior Project Conference in Engineering and Technology (ISPC 2021) Surface Modification of Polymeric Materials in Footwear Industry by Atmospheric Pressure Plasma Technology Maulani Safitri, Yu-Lin Kuo, Hsing-Ju Sheng, Hsien-Po Wang, Chi-Liang Ko, and Sagung Dewi Kencana Department of Mechanical Engineering, Collage of Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan, R.O.C. Abstract Polymers are widely use in the footwear industry, e.g. as an adhesive and shoes-sole. However, polymers have poor adhesion due their low surface free energy. Conventional method, i.e. chemical reaction (graft polymerization and etching) and UV-radiation are not suggested due to the hazardous chemical used, which will affect the polymers’ surface properties. In this study, an atmospheric pressure plasma is used to replace the conventional technique for surface treatment. Experimentally, polymers, i.e. PE, PMMA, PP, and PVC are used, and a compressed dry air gas source is applied to activate the polymers’ chemical properties on their surfaces, with various ageing time: 0, 30, 60, 90, and 120 minutes. Field- emission scanning electron spectroscope is used to observe the topography of the pristine and plasma-treated polymers. Water contact angle and surface free energy are performed to evaluate the hydrophilicity of the plasma-treated polymers. The lower the contact angle is, the higher the surface free energy and the better the adhesion will be. The results showed that the surface free energy of the polymers is significantly increased after the plasma treatment with ageing time from 0 to 120 minutes. The pristine samples have a higher contact angle results than the plasma-treated samples. The surface free energy results of pristine polymers: PE, PMMA, PP, and PVC are 41.53, 54.67, 40.63, 47.41 mN/m, respectively. However, the surface free energy of the plasma-treated polymers after 0 and 120 minutes ageing time has been improved to 72.17, 66.24, 53.73, 69.79 mN/m and 74.27, 63.09, 42.43, 71.95 mN/m, respectively. The morphology of the pristine samples has showed a dense and smoother surface. After the plasma treatment, the polymers’ surfaces are more porous and rough. The change on the surface properties is implying that the plasma reactive species has attached on the polymers’ surface and bombarded them, which increase the surface adhesion. Keywords: polymers, footwear industry, surface free energy, atmospheric pressure plasma, hydrophilicity, adhesion. -14-

The 9th International Senior Project Conference in Engineering and Technology (ISPC 2021) Development of Deoderant Product by using Sericin Extraction from Cocoons Jiratchaya Thongkamkeaw, Pongsathorn Sirlawong, and Suchanuch Chaichana Department of Chemical Engineering, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand Abstract Sericin and fibroin are the main protein in silkworm cocoons, approximately 70% and 30% for fibroin and sericin, respectively (Sinohara, 1979). Fibroin has widely used in the textile industry, while sericin is eliminated as wastewater. From a previous study, the molecular weight of sericin above 100 kDa is widely used in cosmetics and medicine (Altman et al., 2003), (Zhang, 2002). Therefore, this study will be studying the appropriate conditions, compare sericin content, patterns, and properties of sericin from both mulberry cocoon and non-mulberry cocoon groups to develop the deodorant product. Sericin protein of both groups was extracted with distilled water in totally eight conditions, starting at the temperature 80 °C and 100 °C for 10 and 60 minutes, sequentially then filtered by filtrate paper. Deodorant product formation ware made in lotion texture by mixing emulsion wax, shea butter, coconut oil, and extracted sericin. Eight formulas have tested by 50 people then analyzed by survey questionnaires. The most effective deodorant will be examined anti-bacteria and sericin in that formula will be analyzed the molecular weight by SDS-PAGE and the concentration by Bradford protein assay. Expected results, extracted sericin from mulberry cocoon 100 °C, 60 minutes is the most appropriate proprieties to use in cosmetics (Cansing et. al., 2017). The deodorant formula no.7 contains extracted sericin from the mulberry cocoon at 100 °C, 60 minutes has the most effective anti-bacteria that causes odor (Aramwit et al., 2010; Senakoon et al., 2009; Wu and Wang, 2008). Expected benefits from this study, firstly this study can be lead, and developed the deodorant from extracted sericin and can increase the value of cocoon. Secondly, sericin can be ordinary as an ingredient in cosmetic industries and reduced wastewater. -15-

The 9th International Senior Project Conference in Engineering and Technology (ISPC 2021) The Development an Active CMC Hydrocolloid Wound Dressing with Andrographolide Thasang Thavanapong, Sutiwat Nuanyai, and Surangphimol Prasansua Department of Chemical Engineering, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand Abstract The objectives of this study were to develop a hydrocolloid active wound dressing using CMC loaded with andrographolide, which is an important active substance of Andrographis paniculata, characterize and evaluate its potential in wound dressing applications. CMC hydrocolloid film loaded with Andrographolide (CMC-AG) was prepared by mixing CMC with water using glycerol as a plasticizer and casted into a film at 80C. To improve the film’s mechanical strength against water, the CMC films were crosslinked with either calcium chloride (CaCl2) or citric acid at 120C for 5 minutes. The films of pure CMC, CMC crosslinked with citric acid (CMC-CA) and CMC crosslinked with CaCl2 (CMC-CaCl2) were incubated in water at 25℃? for a degradation test. Our result showed that pure CMC film was dissolved within 20 minutes, followed by CMC-CaCl2 film which was dissolved by 3 hours. In contrast, CMC-CA film remained intact up to 48 hours, suggesting that citric acid was a better crosslinker than CaCl2 for CMC film. As the preparation of CMC films was carried out at high temperature, the stability of Andrographolide at temperature, ranging between 25 to 300C, was investigated using Thermal Gravitational Analysis (TGA). TheTGA thermogram showed that the weight loss of Andrographolide was not observed upon increasing temperature, indicating that no decomposition of andrographolide occurred at high temperature. In the second part of the study, various concentrations of andrographolide were loaded into CMC-CA films and allowed to be released into simulated wound fluid for 7 days. The cumulative release of andrographolide from CMC-CA was compared with several kinetics models, including zeroth order, first order, Higuchi and Korsmeyer-Peppas models to understand the mechanism governing the release of andrographolide from this crosslinked hydrocolloid film. -16-

The 9th International Senior Project Conference in Engineering and Technology (ISPC 2021) Basic Sign Language Training Device Peeranut Jitsilsophon and Waratep Inboon Control System and Instrumentation Engineering Department, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand Abstract Currently, there are 2 ,0 4 8 ,3 6 6 registered people with disabilities in Thailand and 3 8 5 ,0 8 7 people with communication disabilities. There are also many people with hearing and communication disabilities who have not been trained in sign language, where learning sign language and accessing sign language interpreters is a fundamental right of people with hearing and communication disabilities. Specifically, communicating with others to access the rights that people with disabilities themselves want to gain and for everyday use. However, while Thailand in 2019 has a total of 659 registered sign language interpreters, 150 sign language interpreters for the hearing impaired and 509 sign language interpreters for people with disabilities, compared to the number of people with disabilities, it is seen that sign language interpreters are very small, making it difficult for interpreters to access the hearing and communication disabilities thoroughly and make it difficult to practice sign language. As a result of the above-mentioned problems, our group has designed a device to help train basic sign language by designing it in glove form and will allow users to make their hands according to the Thai spelling symbol pattern, which displays three-dimensional hand graphics on the application to let users know if the gestures they are currently making are correct. In this model uses a spelling of 10 characters. Our equipment is structured as follows First, we will use the Flex sensor, a sensor for measuring the bending of the finger, to detect the gestures of the fingers, having to go through the transduction circuit first, which converts from electrical resistance parameters to voltage parameters. Next, we will use another sensor, the Accelerometer, which detects the direction and degree of the user's hand, all of which transmit data to the control board, which is used as an ESP3 2 because it is a small control board suitable for installation on the device. The control board sends data received from the sensor over the Internet to the application on the Android mobile phone. To display all the information through the application. -17-

The 9th International Senior Project Conference in Engineering and Technology (ISPC 2021) Development of Robot Arm System for Underwater Assembly Yamato Higashimoto and Tasuku Miyoshi Mechanical and Aerospace Engineering, Faculty of Science and Engineering, Graduate School of Arts and Sciences, Iwate University, Iwate, Japan Abstract Japan is one of the rich countries from the point of view of ocean mineral sources. However, present how to mine ocean mineral resources is not unprofitable. To get them stably, we propose constructing metallurgy factory. To achieve it, underwater assembly is needed. Underwater assembly is carried out by Remotely Operated Vehicle (ROV) which has robot arm. It is desirable that arm’s actuators incline to arm’s inertia and arm is thinner from the point of view of ROV’s posture control. Therefore, this paper proposes parallel link as arm of ROV. In this paper, at first, to consider translation of x-y-z axes, delta type parallel link system was developed and peg in hole experiment was executed to confirm validation of this system. When you would like to accomplish peg in hole, it is usual to use force/torque sensor. However, from the point of view of waterproof, force/torque sensor is not convenient. Then, we used value of motor current and made the experiment success. According to result of the experiment, it was confirmed that this system was valid. -18-

The 9th International Senior Project Conference in Engineering and Technology (ISPC 2021) Intensification of Process Design and Modeling of Rabies Vaccine Production Kanokporn Sintarasirikulchai, Nichaya Chotiwittaya, Chidchanok Sammatat, Asawin Meechai, and Kantharakorn Macharoen Department of Chemical Engineering, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand Abstract Rabies is the zoonotic disease with extremely high fatality rate and still be a health problem in Thailand. Rabies vaccination is one of the efficient ways to control, prevent, and treat but Thailand has insufficient vaccine production capacity to meet the demand. Considering an existing model of an inactivated rabies vaccine production process developed previously in our group, the vaccine was produced by growing rabies virus inside Vero cells in a serum free medium under controlled conditions. The production process consists of inoculum preparation, fermentation, purification, and formulation. As the result, the production capacity was 2.47 million doses per year. However, the culture mode of this model does not follow their literature data and lack of oxygen consumption in stoichiometry. The objective of our project is to improve the previous model by changing mode of cell culture and virus production from batch mode to perfusion mode in different stoichiometric reaction to increase production capacity. After that, scaling up and scheduling is performed by increasing a batch size and operating with a stagger mode until the production capacity of the rabies vaccine is reached at least 3 million does per year which is higher than the previous model. SuperPro Designer, a modelling software, is used in this project to simulate the intensified process of the rabies vaccine production and to evaluate the feasibility of vaccine. -19-

The 9th International Senior Project Conference in Engineering and Technology (ISPC 2021) Study of Cat Litter Production from B-Plaster using Carboxymethyl cellulose and Guar Gum as Binders Lumsum Naknomanee, Ramita Chaiyaras, and Wattanachai Boonprapha Department of Chemical Engineering, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand Abstract Nowadays cat is one of the most popular pets and cat is usually kept in a closed system and it can cause cat excretion problems of unpleasant odor and difficulty in cleaning. Therefore, a good quality cat litter is necessary for the owner. The study of cat litter production from β- plaster using Carboxymethyl cellulose and Guar gum as binders was studied to find an appropriate forming process and to improve the percentage yield of cat litter. The experiment was divided into 3 parts, production from β-plaster using Carboxymethyl cellulose and Guar gum, determination of percentage yield and testing properties of cat litter. Two methods which were pot manual and extrusion (syringe) were used to form cat litter. Part 1, the cat litter from pot manual was repeated with P80.00-C0.20-G20.00 formula to compare with previous research. The amount of distilled water was varied at 110, 120 and 130 mL to form 5 mm diameter of cat litter by syringe. Only 120 mL of distilled water was used to form 3 mm diameter of cat litter. Part 2, the percentage yield was determined. The results showed that 5 mm diameter of cat litter that was produced from P80.00-C0.20-G20.00 formula with 130 mL of water gave the highest percentage yield, 82.90%. Part 3, the testing properties of cat litter were tested including density, ability to coagulate, resistance hardness, pH and water absorption. The results showed that the quality of cat litter was increased when the size was decreased and the amount of distilled water was increased. The 5 mm diameter of cat litter from P80.00-C0.20-G20.00 with 130 mL gave the highest percentage yield, resistance hardness and ability to coagulate. Moreover, density, pH and water absorption were suitable for cat when compared with related research. -20-

The 9th International Senior Project Conference in Engineering and Technology (ISPC 2021) Modelling the Loading Process for Subsea Cables Maximilian RP Foy Department of Civil Engineering, HZ University of Applied Sciences, Vlissingen, Netherlands Abstract The project focused on modeling the loading process for subsea cable projects. Subsea cables provide the link between offshore wind farms and the electricity grids on land. They are laid by specialized vessels over a duration of several days. Before this can happen, the cables are first loaded onto the vessel into a large storage carousel. This process can itself take a few days and to better estimate the process duration a model would be made using the project data. The objective being to accurately predict how long a subsea cable laying vessel will take to load before embarking on a cable laying project. This was done by utilizing daily progress reports found on the Boskalis Subsea Cables Production department SharePoint. These daily progress reports contain the data needed to explore relationships between measurables such as cable loading duration, cable length loaded, speed and stops. This data was extracted and then analyzed to explore and determine trends in the data, which were further broken down to understand the underlying causes for different results in the cable loading duration. This broken-down data was then re-assembled to produce a model capable of predicting the loading duration of a project based upon a few inputs and the data the model collects. The model utilized python and excel sheets to automatically allow for more data to be added over time, keeping the model relevant for longer and increasing its accuracy overtime. In addition to the cable loading model this research uncovers several trends which suggest areas of optimization. The model produces a Cable Output Database containing this data and allowing for further analysis depending on the user requirements. The project first explored the context of both cable laying and data analytics (such as the CRISP DM cycle) and then used these to construct the project objectives in more detail. Then the project was split into three phases; Preparation Phase, Statistical Phase, Production Phase. Each phase had its own sub-objectives, scope, theoretical framework, methodology, results and discussion, ending with what will be included as inputs in the next phase. This approach was used to take advantage of the cyclical nature of the CRISP DM process so that each phase could build on and improve the results from the last. The Preparation Phase further explored the cable laying industry and extracting the data from the daily progress reports. The Statistical Phase then used statistical tests and data analytics to explore relationships in this data. The Production Phase used the relationships to build a model from which predictions could be made based upon input criteria (e.g. cable length, type). Ultimately a model was produced which could predict the cable loading duration with a mean accuracy of 78.625% (higher when not including set up duration). -21-

The 9th International Senior Project Conference in Engineering and Technology (ISPC 2021) Synthesis Thermoresponsive Membrane by Grafting PNIPAM Crosslinking with Sodium Acrylate Hydrogel Improving the Oil Separation Efficiency Pornsinee Sukcheunluethai, Sirinat Khumphat, and Nitiporn Kwannguen Department of Chemical Engineering, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand Abstract Thermo-responsive membrane was synthesized via commercial membrane grafted with thermo-responsive hydrogel from the thermo-responsive polymer poly (N-Isopropyl acrylamide) (PNIPAm) to reduce the LCST by crosslink with Sodium acrylate or SA. And find suitable composition of sodium acrylate which proper to the oil solution from agricultural process and wastewater household. Hydrophobic compound, sodium acrylate, composed of biphenyl group which could potentially be useful for environmental remediation. Beyond that, sodium acrylate can reduce the LCST of PNIPAm to 28 oC which close with room temperature and the waste temperature from the household wastewater. The used commercial membrane is PES membrane which widely used in water treatment because of their outstanding hydrolytic stability as well as their good mechanical properties tolerate to chemical and temperature. The experiment divided into 6 parts, introduction double bonds on the PES membrane surface, preparing thermo-responsive hydrogel, grafting membrane with sodium acrylate hydrogel, characterization of thermo-responsive membrane, self-cleaning test, and oil separation test. The characterization of the thermo-responsive membrane will study include morphology observation, water flux, kinetic swelling behavior, temperature- dependent swelling studies, LCST measurement and swelling reversible. From the analysis, results are expected that the sodium acrylate (SA) will reduce the LCST of poly (N-Isopropyl acrylamide) (PNIPAm). According from Iwona Zarzyka et al., have to studies phase diagrams of PNIPA and PNIPA-SA by TM-DSC. It was shown that the introduction of ionic comonomer (SA) into the structure of PNIPA results in a similar shape of phase diagram and differences are related to the shift of minimum critical points and intersections to the lower content of gel. So, when the LCST of PNIPAm can be reduced closely to ambient temperature by mixing with hydrophobic membrane that can be helped in self-cleaning of membrane. If the self-cleaning can occur, it is necessary to heat the membrane to room temperature or at 25 ℃ until 38 ℃ which completely sink. Which use a heating energy so, the less of LCST of PNIPam, the less energy which use in self-cleaning. It also successfully introduction double bonds on the PES membrane and then the hydrogel layers were synthesized on the membrane surfaces via UV light. According from Min He et al., studies antibacterial hydrogel thin layers with excellent blood compatibility were covalently attached onto the PES membrane surfaces via UV light-initiated crosslinking copolymerization. The result shown that the designed hydrogel layers have great potential to be widely applied as coatings for many biomedical devices. For the efficiency of oil separation membranes, results are expected that the efficiency of oil separation of membrane that grafted with thermo-responsive hydrogels will more efficiency than the commercial membrane. -22-

The 9th International Senior Project Conference in Engineering and Technology (ISPC 2021) Study of Diet - Microbiome Relationship and Microbe-Microbe Interactions for Human Gut Microbiome Nattanan Sritha, Pharitporn Hianghakun, and Asawin Meechai Department of Chemical Engineering, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand Abstract Human gut microbiota is directly related human health and influenced by diet and environment. In this work, we simulate six representative microbes of three genus which are co-localizing in the human large intestine: Bacteroid fragilis NCTC 9343, Bacteroid ovatus ATCC 8483, Bifidobacterium breve HPH 0326, Bifidobacterium longum longum ATCC 55813, Clostridium botulinum A str. ATCC 19397, and Clostridium difficile CD 196. Effects of five Thai diets on the microbial growths and their interactions have been simulated through COBRA Toolbox V3.1 and GUROBI 9.0.3 in MATLAB program R2021a. Simulated results of this study will be further analyzed towards future design of proper diet to improve human health. -23-

The 9th International Senior Project Conference in Engineering and Technology (ISPC 2021) Anti-Germs UVC Box Krit Kaewareelarp, Perapat Janopas, and Supakorn Theerakul Electrical Communication and Electronic Engineering Department, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand Abstract This project presents the anti-germ UVC box. A servo motor, a relay, and a wireless control system are integrated for device control and safety. The wireless control system utilizes Wi-Fi signal to handle functions of the proposed device. A user can set the sterilization time for automatic sterilization and also can manually turn on and off the UVC box via a wireless device. A relay is used to control the operation of a UV lamp and an LCD displays the time remaining. While the UV lamp is on, a servo motor locks the door to prevent a user from unintentionally opening it. A speaker is deployed to make a buzzing sound once the sterilization is complete. A 36 W UV lamp is used in this work with a closed volume of 1.024 m3. The efficiency of the proposed device is verified by the computation that relates the UV dose, UV intensity, and sterilization time to ensure the reliable and practical UVC box. -24-

The 9th International Senior Project Conference in Engineering and Technology (ISPC 2021) Smart Cat Feeder Natthapath Rangsrisakolsawat, Peerapong Prompratoom, and Kittanai Saengsakul Department of Electronics and Telecommunication Engineering, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand Abstract This project presents a smart cat feeder. Cat food and medication are fed automatically and particularly with the help of an RFID tag. An RFID tag is designed as a cat necklace for cat identification and its reader is installed to a feeder. A microcontroller analyzes the ID data, identifies the cat, and controls feeder motors to serve customized food and medication with appropriate amount to the approach cat. The proposed feeder is very helpful for cat’s owners or veterinarians or related persons to accurately facilitate food and medication feeding for cats. -25-

The 9th International Senior Project Conference in Engineering and Technology (ISPC 2021) Development of an Intelligent System for Surgical Tools Inspection using Deep Learning 1Varun Shaji and 2Srishti Ganguly 1Department of Electrical and Computer Engineering, Faculty of Engineering, National University of Singapore, Singapore 2Department of Mechanical Engineering, Faculty of Engineering, National University of Singapore, Singapore Abstract Surgical instruments must undergo a rigorous process of cleaning, sterilising and inspection after surgeries to ensure their proper maintenance, increase longevity of tools and prevent health hazards due to contaminated tools. A critical step involved in doing so is the visual inspection conducted by nurses and medical staff. The accounting of tool kits by the medical staff is often a labour intensive and mundane task which can be easily automated. Primary and secondary research indicates that human errors in monitoring and inspection do occur occasionally resulting in patient harm if unidentified or loss of time during surgery if identified by surgeons. This is due to the subtle differences and small features of the tools as well as the strenuous effect on the eyes. Existing solutions to this issue mostly focus on the identification of tools. However, the area of identifying mechanical faults and impurities in surgical tools via computer vision/alternative sensors remains largely unexplored. Hence, this project aims to design a solution to identify such faults and residues, particularly in ophthalmic surgical tools, using a combination of robotics and computer vision, while also identifying the tools to account for them. This project aspires to aid in more rigorous inspection of the tools while reducing the burden on the nurses. Our design consists of a two-axis gripper mechanism to grasp the surgical tool and rotate as needed and a high-resolution camera system to capture images for inspection. A deep convolutional autoencoder, trained on defect-free tools, is used to detect any impurities and irregularities on the tool such as cracks, stains, biological residue etc. from the captured image. Structurally, the gripper jaw has a silicone padding to increase the tools’ area of contact with the gripper designed to be removable, complying with the stakeholder requirement of maintaining sterility. The system is designed to process only those tools which the user wishes to inspect carefully since accuracy of the tool inspection is prioritized. Mechanical structure is fully assembled and defect detection software shows promising results. -26-

The 9th International Senior Project Conference in Engineering and Technology (ISPC 2021) Find the Song: Music Identification System by User Input Pitawat Kulkraijak and Moakh Kiengsiri Department of Automation Engineering, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand Abstract This project is about identifying songs in the database by using user input such as singing, humming, and whistling. Query by Singing/Humming (QbSH) systems already exist and have many applications, with each of their own respective limitations. The main purposes of this project are to explore different tools and techniques in QbSH, and build our own core algorithm that would be most suitable for our own database. Two major parts of the mentioned algorithm are the pitch extraction module and the matching engine. We explored five MATLAB, and one Python, pitch extraction algorithms. We also chose Dynamic-Time Warping (DTW) as our main matching engine algorithm. Through extensive repeated experimentations, we selected the most appropriate tools and built a complete prototype that can be implemented on our own database to achieve the minimum requirements. These requirements include achieving the minimum of 60% MRR-accuracy and 70% top-5 hit rate, handling audio files such as .wav as the input, and being able to extract 3 types of 12-second queries (singing, humming, and whistling) to match against 10 songs (or the equivalent of 1,200 seconds of audio) in the database. Keywords: QbSH, MATLAB, Python, Pitch Extraction, Matching Engine, DTW -27-

The 9th International Senior Project Conference in Engineering and Technology (ISPC 2021) Simbot (Robot Simulation Video Game) Nutthawee Petchploy, Rompruk Varinsirirux, and Supanut Kuntonjinda Computer Engineering Department, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand Abstract In this modern age, robot technology is making a lot of impact on our everyday lives. Workers with industrial skills and knowledge are needed more than ever—especially the ones with expertise in programming, robots, and automation fields. Unfortunately, not every school in Thailand can afford the space and equipment to educate its people about programming and robots. As computer engineering students, we want to put a spotlight on robot programming for these students in a way that it will be accessible and doesn’t require a lot of space and expensive equipment. We will create a mobile video game about robot programming with augmented reality technology to make the learning experience fun and interactive. This game will be developed using Unity Engine, Blender, and Adobe Illustrator. -28-

The 9th International Senior Project Conference in Engineering and Technology (ISPC 2021) INDEX A K S Kuo, Y, 14 Sattayawatee, O, 4 Akiyama, M, 3 Kencana, S.D, 14 Srisut, J, 6 Ariyapornpong, T, 13 Khumphat, S, 22 Sitthikasamkit, C, 8 Kwannguen, N, 22 Saysaeng, C, 10 B Kaewareelarp, K, 24 Simaksuk, K, 13 Boonsue, Y, 6 Kulkraijak, P, 27 Sertpannuk, J, 13 Boonprapha, W, 20 Kiengsiri, M, 27 Safitri, M, 14 Kuntonjinda, S, 28 Sheng, H, 14 C Sirlawong, P, 15 Chaiyakate, C, 1 L Sintarasirikulchai, K, 19 Chawengtammarat, P, 5 Limpawittayakul, T, 8 Sammatat, C, 19 Chaichana, S, 15 Sukcheunluethai, P, 22 Chotiwittaya, N, 19 M Sritha, N, 23 Chaiyaras, R, 20 Miyoshi, T, 18 Saengsakul, K, 25 Macharoen, K, 19 Shaji, V, 26 F Meechai, A, 19 Feepakphor, Y, 1 Meechai, A, 23 T Foy, M, 21 Teratani, I, 3 N Thanongsak, S, 5 G Naknoi, N, 5 Tiamchaipan, C, 6 Ganguly, S, 26 Nuanyai, S, 16 Teerawongpinyo, S, 9 Naknomanee, L, 20 Tathip, S, 11 H Thongkamkeaw, J, 15 Hanspal, S, 4 O Thavanapong, T, 16 Hengpapom, N, 10 Ongtong, C, 2 Theerakul, S, 24 Huang, M.S, 12 Higashimoto, Y, 18 P V Hianghakun, P, 23 Phonprasit, S, 1 Varinsirirux, P, 28 Petchruan, P, 4 I Pratama, A.D, 7 W Inboon, W, 17 Phomklang, T, 9 Wongrungaudom, M, 11 Phiriyawirut, M, 10 Wu, A.T., 12 J Prasansua, S, 16 Wang, H, 14 Jitsilsophon, P, 17 Prompratoom, P, 25 Janopas, P, 24 Petchploy, N, 28 Y Yhupaet, T, 8 K R Yensatid, S, 9 Kanpet, P, 2 Riza, A.N, 12 Kencana, S.D, 7 Rangsrisakolsawat, N, 25 Kamchan, T, 10 Keram,B, 11 S Kencana, S.D, 12 Somkid, T, 2 Ko, C, 14 Saito, N, 3 -29-

FACULTY OF ENGINEERING KING MONGKUT’S UNIVERSITY OF TECHNOLOGY THONBURI CONTACT FB : International Center for Engineering, KMUTT Call : 02-470-9024 or 9026 Website : http://www.eng.kmutt.ac.th/ice