SMTE Oral presentation in English Abstract 2562

คาํ นํา สํานักงานคณะกรรมการการศกึ ษาข้ันพ้ืนฐาน เห็นชอบใหมีการจัดกจิ กรรม “การประชุมวิชาการนักเรียนหองเรียนพเิ ศษ วิทยาศาสตร คณิตศาสตร เทคโนโลยีและสิ่งแวดลอม ครั้งท่ี11 เพื่อใหนักเรียนโครงการหองเรียนพิเศษวิทยาศาสตร คณิตศาสตร เทคโนโลยีและสิ่งแวดลอม ชั้นมัธยมศึกษาปที่6 ประจําปการศึกษา 2562 ไดนําเสนอผลงานโครงงานทางดานวิทยาศาสตรและ คณิตศาสตร พรอมท้ังแลกเปลี่ยนองคความรูกับเพ่ือนๆ นักเรียนตางโรงเรียน จํานวน 32 แหง ไดแก โรงเรียนขอนแกนวิทยายน โ ร ง เ รี ย น กั ล ย า ณ วั ต ร โ ร ง เ รี ย น แ ก น น ค ร วิ ท ย า ลั ย โ ร ง เ รี ย น ชุ ม แ พ ศึ ก ษ า โ ร ง เ รี ย น ก า ฬ สิ น ธุ พิ ท ย า ส ร ร พ โรงเรียนอนุกูลนารี โรงเรียนสารคามพิทยาคม โรงเรียนผดุงนารี โรงเรียนบรบือวิทยาคาร โรงเรียนวาปปทุม โ ร ง เ รี ย น ป ย ะ ม ห า ร า ช า ลั ย โ ร ง เ รี ย น น ค ร พ น ม วิ ท ย า ค ม โ ร ง เ รี ย น ส ต รี ศึ ก ษ า โ ร ง เ รี ย น ร อ ย เ อ็ ด วิ ท ย า ลั ย โ ร ง เ รี ย น ส ก ล ร า ช วิ ท ย า นุ กู ล โ ร ง เ รี ย น ธ า ตุ น า ร า ย ณ วิ ท ย า โ ร ง เ รี ย น อุ ด ร พิ ชั ย รั ก ษ พิ ท ย า โ ร ง เ รี ย น เ ต รี ย ม อุ ด ม ศึ ก ษ า ภ า ค ต ะ วั น อ อ ก เ ฉี ย ง เ ห นื อ โ ร ง เ รี ย น อุ ด ร พิ ท ย า นุ กู ล โ ร ง เ รี ย น ส ต รี ร า ชิ นู ทิ ศ โ ร ง เ รี ย น ป ร ะ จั ก ษ ศิ ล ป า ค า ร โ ร ง เ รี ย น ห น อ ง บั ว พิ ท ย า ค า ร โ ร ง เ รี ย น ศ รี บุ ญ เ รื อ ง วิ ท ย า ค า ร โ ร ง เ รี ย น ป ทุ ม เ ท พ วิ ท ย า ค า ร โ ร ง เ รี ย น ชุ ม พ ล โ พ น พิ สั ย โ ร ง เ รี ย น เ ล ย พิ ท ย า ค ม โ ร ง เ รี ย น เ ล ย อ นุ กู ล วิ ท ย า โรงเรียนเฉลิมพระเกียรติฯหนองบัวลําภู โรงเรียนศึกษาสงเคราะหธวัชบุรี โรงเรียนกาญจนาภิเษกวิทยาลัยกาฬสินธุ โ ร ง เ รี ย น เ ฉ ลิ ม พ ร ะ เ กี ย ร ติ ฯ ร อ ย เ อ็ ด แ ล ะ โ ร ง เ รี ย น เ ฉ ลิ ม พ ร ะ เ กี ย ร ติ ฯ ส ก ล น ค ร โ ด ย ก า ร แ บ ง รู ป แ บ บ การนําเสนอโครงงานออกเปน 2 กลุม ไดแก กลุมนําเสนอแบบปากเปลา (Oral Presentation) และกลุมนําเสนอแบบโปสเตอร (Poster Presentation) ซ่ึงจําแนกสาขาโครงงานท้ังสองกลุม ออกเปนการนําเสนอแบบปากเปลาจํานวน 7 สาขา ไดแก 1) สาขาวิชาฟสิกส 2) สาขาวิชาเคมี 3) สาขาวิชาชีววิทยา 4) สาขาวิชาคณิตศาสตร 5) สาขาเทคโนโลยีและคอมพิวเตอร 6) สาขา วิทยาศาสตรโลกและส่ิงแวดลอม 7) ประเภทการนําเสนอเปนภาษาอังกฤษ การนําเสนอแบบโปสเตอรจํานวน 6 สาขา ไดแก 1) สาขาวิชาฟสิกส 2) สาขาวิชาเคมี 3) สาขาวิชาชีววิทยา 4) สาขาวิชาคณิตศาสตร 5) สาขาเทคโนโลยีและคอมพิวเตอร 6) สาขา วิทยาศาสตรโลกและสิ่งแวดลอม สําหรับเอกสารเลมน้ีเปนการรวบรวมบทคัดยอของโครงงานทั้งหมดในกลุมนําเสนอ แบบปากเปลา (Oral Presentation) และกลุมนําเสนอโปสเตอร(Poster Presentation) และรายละเอียดของการจัด กจิ กรรมฯ ในคร้ังน้ี คณะผูจัดทําหวังเปนอยางยิ่งวา เอกสารฉบับบน้ีจะเปนประโยชนตอนักเรียน ครู คณะกรรมการตัดสินและผูเขารวม กิจกรรม และขอขอบพระคุณผเู กี่ยวขอ งทุกทา นที่ไดใหความรวมมือสนบั สนนุ การจัดกิจกรรมในคร้ังน้ี คณะผูจดั ทาํ 7 สิงหาคม 2562



สารบัญ หนา 1 นำเสนอแบบปากเปลา 2 O_ENG_01 Using Parabolic Troughs Include Light for making Solar Water Heater 3 O_ENG_02 Shoes dryer by thermal power 4 O_ENG_03 Grease filter with natural fiber 5 O_ENG_04 Analysis of antioxidant profiles 6 O_ENG_05 The study of the dark spots on the sun 7 O_ENG_06 Popped rice with protein hydrolysate from brewer_s grain 8 O_ENG_07 The Efficiency of Adsorption of Heavy Metals through Cellulose Hydrogel 9 O_ENG_08 The Synthesis of Nano-Fiber Soap by Using Electrospinning Process 10 O_ENG_09 Fabrication of Pigeon chasing machine by sound wave with motion sensor 11 O_ENG_10 Synthesis and Analysis of the Purity of Carboxymethyly Cellulose (CMC) 12 13 from Rice Husk 14 O_ENG_11 Antibacterial and Antioxidant activities of Cnidoscolus aconitifolius Extract 15 O_ENG_12 Allelopathic Potential and Effects from 5 Allelopathic Plants on The 16 17 Growth of Crops 18 O_ENG_13 The Student Attendance and School Activities Monitoring System 19 O_ENG_14 Thermal energy forms the rural resin of Burmese Sal efficiency increment. 20 O_ENG_15 THE DEVELOPMENT OF SUPER HYDROPHOBIC MATERIAL 21 O_ENG_16 The Sum of Root Ratios with Polynomial Coefficients by Using Inductive 22 23 Reasoning 24 O_ENG_17 Squares circumscribed by ciecles 25 O_ENG_18 Smart Home Smart Life Project 26 O_ENG_19 Wireless notification saline program O_ENG_20 Marvelous Pascal’s triangle and the all possible routes O_ENG_21 Wind-Energy-Model-Generator O_ENG_22 Counting Thread by Moiré Film O_ENG_23 The Study of Butterfly Diversity in Sriboonruang Wittayakarn School O_ENG_24 A study on Ecological of Astraeus Odoratus at Phu pan Royal Development Study Centre, Mueang Sakon Nakhon Province O_ENG_25 Total phenoic content and antioxidant activity of Hypsizyus tessellatus extracts O_ENG_26 Gyroscope Teslameter from Non-Ferromagnetic material

หนา 1 Using Parabolic Troughs Include Light for making Solar Water Heater Jirattipon Lomasa¹ , Patsachol Khammuck¹ , Suwarin Pimpong¹ , Chamnan Prerdprao² ¹ Student of Triamudomsuksa School of the Northeast, E-mail : [email protected] ² Triamudomsuksa School of the Northeast Abstract This major project objective of using parabolic troughs include light for making solar water heater was to design and produce water heater by taking solar heating with parabolic troughs include light and to study the efficiency of solar water heater. The study instrument was 2.44 meters long, 1.22 meters wide metal parabolic curve with focus distance 15 cm, 30 cm and 60 cm respectively. The project studied the water flowing rates which affected on water temperature given by parabolic troughs that rotated in the direction of the sun with mechanical mechanism without electricity. They were 250, 500 and 750 ml /min. In addition, another main instrument was foam box with 1, 2 and 2.4 inch thickness which was important to measure the efficiency in keeping water temperature. Generally, the study clearly reflected that the parabolic trough with focus distance (fd) 15 cm produced warm water with the highest temperature at 47°C, 30 cm and 60 cm at 44°C, 39°C respectively. In term of water flowing rate, 250 ml /min helped produce with the highest temperature at 49°C, 500 and 750 ml /min at 46°C and 39°C. Similarly, it is clear that parabolic troughs rotated in the direction of the sun with no electricity. Furthermore, foam box with 2.4 inches thickness is the best for keeping water temperature with the minimized 11.82 % whereas 2, 1 inches were 12.27 %, 15.91%. In conclusion, it is clear that all of the findings strongly confirmed that using parabolic troughs include light for making solar water heater did appear to effectively save energy, reduce the expenses and utilize in remote areas. Moreover, it is easy and comfortable to change the heat pipe when it is clogged up. Key words: solar water heater, parabolic troughs, alternative energy

หนา 2 Shoes dryer by thermal power Suppasin Srinual,Kittipos Ramsiri,Jittiporn Leebor Rather Jantamol,Nidjawan Pimkheeree Student from Loeianukulwittaya school , Email:[email protected] Loeianukulwittaya school Subject of Science Project is “Shoes dryer by thermal power”. Purpose 1. The invention of the shoes dryer by thermal power. 2. To test the effectiveness of Shoes dryer by thermal power. By trial shoes dryer by thermal power which learners invented bring materials that can be easily found come Assemble by using light bulbs to heat shoes dryer and a small fan to vent the moisture of shoes dryer. There are experimented with each type of shoes from the experiment concluded that shoes dryer by thermal power work well and efficiently for drying shoes in less than 2 hours and still safe, odorless faster than using solar energy with uncertainty and without any obstructions while the a shoes dryer by thermal power is working. Keywords : Shoes dryer by thermal power , Solar energy

หนา 3 Title: Grease filter with natural fiber Branch Chemistry Author: 1. Mr. Kanin Akkaraphong 2. Miss. Juthamas Chaiyahade 3. Miss. Chaniporn Khanthawichai Email Address: - Advisor: Mrs. Suthanya Weerakul School: Prachaksilapakarn School Abstract dddddddNowadays, there are many problems with clogged pipes caused by food waste grease and other household items. We therefore studied and compared the filtration of fat by using natural materials that are easy to find. The purpose of this study was to (1) reduce the chance of clogging pipes caused by grease in the pipe. (2) Reduce the amount of grease in the water to have the minimum amount of fat before releasing water. dddddddWe will bring materials such as luffa, coconut meal, water hyacinth root and cattail, by using Food waste water to test the efficiency of the filtration of such natural materials. From the results of the experiment, it was found that the cattail was able to filter out the most grease. dddddddWe therefore decided to collect cattails to make grease filters. From that we wash the water from the food that can be used in a household sink or any school cafeteria before draining to reduce the chance of clogging the drain again.

หนา 4 Analysis of Antioxidant Profiles in Crude Extract of Wan-Tor- Ra-Nee-San (Phyllanthus pulcher Wall.) Ariyaphorn Peangket1 , Piyangkul Sawanyapanich1 , Prailin Pandang1 Jaroonlak Worakhot2 and Piyathida Papaphay2 1Student of Sarakhampittayakhom School , E-mail : [email protected] 2 Sarakhampittayakhom School Abstract Wan-Tor-Ra-Nee-San (Phyllanthus pulcher Wall.) is well known as local herb. This study were aim to evaluate the antioxidant activities by using DPPH• method. Further study, total polyphenol and flavonoids were dertermined by using Folin-ciocalteu and Aluminium assay. It was found that the extract of Wan-Tor-Ra-Nee-San (Phyllanthus pulcher Wall.) showed high antioxidant activities (DPPH; IC50 8.33 mg/L)The phenolic and flavonoid contents of Wan-Tor-Ra-Nee-San (Phyllanthus pulcher Wall.)were reveal that 528.42 mgGAE/100g DW and 504.89 mgQE/100g DW respectively. The results indicated Wan-Tor-Ra-Nee-San (Phyllanthus pulcher Wall.) is a good natural source of antioxidant compounds for use supplementary food. Keyword : Phyllanthus pulcher Wall., antioxidant, Free radical

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หนา 6 Popped rice with protein hydrolysate from brewer's grain and extracts of neem leaves and wild spikenard for lure and elimination of fruit flies Apiluk Vijunwat1, Chayutpong Chaimongkol1, Pantharee Waeokutruea1, Sinlapakorn Chanthachai2 1Student of Piyamaharachalai School, E-mail: [email protected] 2 Piyamaharachalai School Abstract The purpose of this study was to examine the efficiency of the popped rice with protein hydrolysate from brewer's grain(for lure the fruit flies) and extracts of neem leaves and wild spikenard(for eliminate fruit flies). There were 5 steps in this experiment. (1)Studying the efficiency for lure fruit flies of protein hydrolysate. (2)Studying the efficiency for eliminate fruit flies of extracts of neem leaves and wild spikenard. (3)Comparison the efficiency for lure fruit flies between protein hydrolysate and a piece of mango(fruit flies's food). (4)Comparison the efficiency for eliminate fruit flies of extracts of neem leaves and wild spikenard and malathion(insecticide). (5)Comparison the duration of fruit flies lure between filling in popped rice and filling in absorbent cotton. The results of the study were as follows : (1)Usage of protein hydrolysate can lure the fruit flies. (2)Usage of extracts of neem leaves and wild spikenard can get rid of fruit flies. (3)protein hydrolysate can lure fruit flies better than fruit. (4)Malathion can get rid of fruit flies better than extracts of neem leaves and wild spikenard. (5)The duration of fruit flies lure that filling in the popped rice 3 times longer than filling in absorbent cotton. Keywords: fruit flies, protein hydrolysate, popped rice

หนา 7 The Efficiency of Adsorption of Heavy Metals through Cellulose Hydrogel Thatchaphon Warunsiri1, Yanisa Inhom1, Nanthakan Won1 Kultida Teenoi2 and Natchatat Limsawet2 1Student of Khon Kaen Wittayayon School, E-mail: [email protected] 2Khon Kaen Wittayayon School Abstract This research aims to study the efficiency of adsorption of heavy metals of chromium(VI)ion and copper (II) ion through cellulose hydrogel. By using Spectrophotometer to measure light absorption in the same wavelength. The research result shows that before and after absorption the concentration of chromium (VI) ion in sodium chromate solution and copper (II) ion in copper (II) sulfate solution were not the same. The absorption percentage of chromium (VI) ion and copper (II) ion are approximately 42.7% and 59.2%, respectively. Therefore, cellulose hydrogel does adsorb heavy metals. In studying cellulose hydrogel preparation by varying the concentration of hydrochloric acid at 1 M 3 M and 5 M for adsorb chromium (VI) ion. The result illustrates that the concentration of hydrochloric acid at 3 M accounted for 46.9%. To sum up, cellulose hydrogel absorbance in 3 M solution is better than in 1 M and 5 M. Accordingly, hydrochloric acid effecting hydrogen bond causes higher gap between each hydrogen bond. However, too much of bonding will impact the space between each bond. The more space, the less efficiency of adsorption. The efficiency of absorption of sodium chromate in synthetic wastewater at various pH numbers, contributed to the adsorption of chromium (VI)ion in sodium chromate solution. At pH 3, accounts for 48.7%. Due to, the positive charge from hydrogen ions in solution that has a pH 3, leads the charge on the surface of cellulose to be neutral, which decreases the electrostatic repulsion. On the other hand, low number of pH causes the negative charges to decrease and the electrostatic repulsion to increase. Keywords: cellulose hydrogel, heavy metal

หนา 8 The Synthesis of Nano-Fiber Soap by Using Electrospinning Process Sirikorn Seesomba1 Piyada Wangworn2, Pichai Panyasarn2, and Chalong Mahiwan2, 1 Nakhon Phanom Wittayakhom School Student, E-mail: [email protected] 2 Nakhon Phanom Wittayakhom School Abstract The purposes of the study were to synthesize nano-fiber soap by using electrospinning process and to investigate the relative factors affected to nano- fiber size. polyvinyl alcohol (PVA) was prepared as reactant using proportion of PVA and soap gel 0.5 : 1.0 ratio. High-voltage power supply (15 kV) was applied, needle tip diameters were at 0.55, 0.90, and 1.20 mm, respectively. The synthesized nano-fiber was heated to vaporize excess solvent at 200 C. Scanning Electron Microscope (SEM) was used to characterize the product. Findings indicated that the diameters of nano-fiber were 351 ± 15 361 ± 12 and 390 ± 16 nm while using needle diameters of 0.55, 0.90, and 1.20 mm, respectively Keywords: Nano-fiber soap, Electrospinning process

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หนา 10 Synthesis and Analysis of the Purity of Carboxymethyl Cellulose (CMC) from Rice Husk Chayut Somphakdee1, Kewalinthorn Borkkhoontod1 and Nipapat Inped1 Pairin Charoensiri2 1Student of Kaennakhon Witthayalai School, E-mail:[email protected] 2Kaennakhon Witthayalai School Abstract Rice husk is a large amount of agricultural waste. Rice husk is a by-product of rice milling. Is a mixture of seed shells, calyx, straw and seed terminal there are about 20-24% of paddy. The most common elements include the husk of cellulose and hemicellulose about 68%, 19.2 - 24.5% of lignin and 13.2 - 29.0% of ash (from 86.9 to 97.3% consists of silica). This material, when taken through the alkaline extraction and then extracted lignin with 1% Sodium hypochlorite (NaClO). Study and compare with the initial cellulose weight in order to calculate % yield and we found that the highest yield was 65.51% and this extracted cellulose was prepared to be synthesized as CMC at 50 °C, 60 °C, 70 °C and 80 °C for 3 hours. Used to adjust pH to neutralize with 90% citric acid then wash with ethanol 5 times and dry. When receiving CMC from the above synthesis we needed to analyze the purity of Carboxymethyl Cellulose (CMC) according to ASTM D 1439-94. From the results of the experiment, it was found that at a temperature of 60 °C is the optimum temperature for synthesis Carboxymethyl Cellulose (CMC) from rice husk and containing the highest average purity percentage is 93.49 . Keywords: Rice husk, Carboxymethyl Cellulose (CMC)

หนา 11 Antibacterial and Antioxidant activities of Cnidoscolus aconitifolius Extract Sirinan Thanma1, Supachai Polorm2, Jitlada Ramsiri2, Namrin Rattanaseeha2 1Student Loeipittayakom School, E-mail: [email protected] 2Loeipittayakom School, E-mail: [email protected] Abstract This study aimed to investigate the antibacterial and antioxidant activities of crude extract from Cnidoscolus aconitifolius. The collected leaves were washed with running tap water and shade dried. The dried plants were then ground using a blender and extracted by maceration with solvents of increasing polarity beginning with hexane, ethyl acetate, ethanol and methanol. The methanol crude extract was yielded the highest amounts comparing with hexane, ethyl acetate and ethanol. All crude extracts were tested for antibacterial activity (against Streptococcus agalectiae, Streptococcus pyogenes, Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa and Vibrio cholera) by agar well diffusion method. Only ethyl acetate extracts from leaves of Cnidoscolus aconitifolius exhibited antibacterial activity against all test strain except Vibrio cholerawith zone of inhibition ranging from9.33 – 10.67 mm.All crude extracts of Cnidoscolus aconitifolius were subjected to investigation of antioxidant activity by DPPH assay. The result found that methanol crude extract showed the highest antioxidant activity (53.94 ± 2.71 % Scavenging).This methanol crude extract was exhibited a high phenolic contents equivalent to gallic acid (GAE) which was accounted for 52.63 ± 2.51 mg GAE/g crude extract.The finding of antimicrobial and antioxidant activities in the crude extracts from leaves of Cnidoscolus aconitifolius could be further explored for future applications. Key words: Cnidoscolus aconitifolius; antibacterial activity; antioxidant activity

หนา 12 Allelopathic Potential and Effects from 5 Allelopathic Plants on The Growth of Crops Bongkotphan Yongyod1, Sarida Sawatju1, Chayapat Patarapanchai1, Ubonwan Leawudomchai2 and Sompis Prasongsil2 1 Udonpittayanukoon School Student, email ([email protected]), 2 Udonpittayanukoon School Teacher Abstract Thailand is a country that has been involved in agriculture for a long time. One of the continuous agricultural problems the country faces has been a problem from weeds that reduce agricultural productivity. Some agriculturalists contend that an economical and environmentally safe method such as allelopathy can be implemented for controlling weeds in agricultural areas. Therefore, the researchers were interested in studying the allelopathic potential from 5 allelopathic plants which are Tamarind (Tamarindus Indica) , Ruellia (Ruellia Tuberosa) , Basil (Ocimum Tenuiflorum) , Sweet Basil (Ocimum Basilicum) , and Tropical Almond (Terminalia catappa) on the growth of crops. Allelopathy is a process whereby plants release toxins to its neighboring plants. That may be harmful or beneficial to the recipient plant. The objective of this project was to study the allelopathic potential from the allelopathic plant on the growth of crops. The process involved thoroughly drying and grinding the leaves of the plant. Mix them in the stage of soil preparation before seeding according to the specified amount. The results of this study showed that different amounts extracts from Tamarind (Tamarindus Indica) , Ruellia (Ruellia Tuberosa) , Basil (Ocimum Tenuiflorum) , Sweet Basil (Ocimum Basilicum) , and Tropical Almond (Terminalia catappa) had a significant effect on the growth of crops. As a result, the alleochemicals from the Ocimum Basilicum leaves, that were crushed into a mixture of two grams, gave the best inhibition of the growth of the stems of crops when considering the amount of the leaves used. Based on the experiment, the results can be used as preliminary data and as an alternative method in the biological control of weeds in the future. Key words: allelopathy, Tamarind (Tamarindus Indica), Ruellia (Ruellia Tuberosa), Basil (Ocimum Tenuiflorum), Sweet Basil (Ocimum Basilicum), and Tropical Almond (Terminalia catappa)

หนา 13 The Student Attendance and School Activities Monitoring System Wanwisa Poochangtong1, Thummaporn Poowachinnapong1, Surattana Dannasarn1 Chuthamas Meesook2, Panuwat Poowichai2 Student of Anukoolnaree School, E-mail [email protected] Anukoolnaree School Abstract The computer project on the student-attendance and school-activities monitoring system aimed to reduce paper consumption, increase the convenience of student attendance monitoring and view class schedules, and public relations of activities within the school. Moreover, the application can notify student attendance via LINE Notify. The operation of this project were divided into 7 steps are as follows: (1) the study of design and create a database for student attendance with Google Sheets; (2) the study of design and create forms for input data of the student attendance with Google Forms; (3) the study of design and create the applications for the student attendance with Thunkable and decorate the images on Canva; (4) the study and create filtering of the student attendance data with Awesome Table; (5) the study of design and create a website for displaying the student attendance report, events calendar and class schedules of all classrooms within the school, and various information about the school with Google Sites; (6) test for application by students of Mathayom suksa 6/10, Anukoolnaree School, the academic year 2019, which the amount of sample group were are 29 of students and 8 of teachers; (7) evaluate the utility of application and analysis of data as a percentage (%). The result of this project found that the application has derived assessment result at a very good level in all dimension. The dimension that derived the highest level of satisfaction was a reducing paper consumption in school with this applications. Keywords: Barcode, Student Attendance

หนา 14 Thermal energy forms the rural resin of Burmese Sal efficiency increment Sirikan Thongraar, Nutnicha Namwong, Punnathorn Khumlar 1Student of Sakolrajwittayanukul School, E-mail: [email protected] 2Sakolrajwittayanukul Abstract Part 1: Comparing the amount of heat of solid alcohol fuel and Kesee by experiment the temperature and heat energy of hard and solid alcohol fuel it was found that the amount of heat obtained from the combustion of Kesee would have more heat energy than solid alcohol fuel 39.90 kJ at the same time. And Kesee spent burning up to 21 minutes, while the solid alcohol fuel took burning up 7 minutes. Part 2: Find the appropriate ratio of solid alcohol fuel and Kesee to obtain maximum heat energy by experimenting with the ratio of solid alcohol fuel: Kesee. In the burning of A substance takes 6 minutes, B substance takes 21 minutes, C substance takes 11 minutes, D substance takes 11 minutes and E substance takes 13 minutes. Measuring temperature changes of the sample in 21 minutes found that the substance B, the temperature change and the amount of heat can be more than A, C, D, E, respectively. Part 3: Study on reducing the smoke from the burning solid alcohol fuel and the Kesee experiment as follows Part 3.1: Study on the reduction of fume from burning solid alcohol fuel, Kesee and solid alcohol fuel mixed with Kesee by spraying water. The results showed that Carbon dioxide from incineration A, B, and C before spraying was 11,987 ppm, 5633 ppm, and 7781 ppm, respectively. When spraying water carbon dioxide was reduced to 8561 ppm, 4012 ppm, and 5881 ppm, respectively. Showed that spraying water can reduce carbon dioxide better. Part 3.2: Study the sample in the compressed air and through the Oxygen air compression process. The amount of heat from the sample A, B, and C compressed in the air. Found that Kesee had heat energy and spent more time burning than solid alcohol fuel. And solid alcohol fuel, solid alcohol fuel mixed with Kesee. In the case of compressing the substance through the Oxygen air compression process, it was found that the Kesee burn time was longer than solid alcohol fuel and mixed with Kesee. Part 4: study commercial feasibility found that the samples produced can be used commercially with a cheaper cost than solid alcohol fuel to the market at 2.78 baht per 1 piece. Keywords: Kesee or resin of Burmese Sal, solid alcohol fuel, the amount of heat

หนา 15 Innovation Afzelia xylocarpa (Kurz) Craib Nursery for Mixed Deciduous Forest in Arid areas. Jiraporn Khumdinpitak1 , Weerayuth Thongdang 2 1 Student Kanlayanawat School, E-mail: [email protected] 2 Kalayanawat School Abstract This project is intended to create an Innovation Afzelia xylocarpa (Kurz) Craib Nursery for Mixed Deciduous Forest in Arid areas by 1) Studying germination acceleration To find ways to make the Makha seeds (Afzelia xylocarpa (Kurz) Craib) grow faster. 2) Studying the materials cover to find the appropriate shape of the lid to prevent water evaporation and water can easily penetrate into. 3) Studying the planting material that affects growth to find soil that can increase the germination rate and the growth of Makha seedlings. 4) Studying the absorbent and moisture retention materials to find materials that retain a lot of moisture and low dehydration, and can be digested naturally. Bring the most effective methods and materials in each episode to be a component of innovation, then find the efficiency of the innovation by planting the seeds into innovation compared to planting the seeds into sandy soil to compare with arid areas. The result showed that accelerating germination by causing the seeds to be wound Soak the water temperature at 60˚c, leaving it to cool down the room temperature has the highest germination of 100% and the average duration of germination is 3.4 days. The semi-circle cap prevents the maximum evaporation of water 91.66%. Plant material that has a loam soil ratio: sandy soil: rice husk (1: 1: 1) is the ratio that can increase the growth of Makha tree as much as possible. Materials to absorb and retain moisture with the ratio of water hyacinth: rice husk ash (1 : 1 ) mixed with clay, with a maximum water absorption of 3 3 . 8 2 % and the lowest dehydration rate is 93.03% and only 1.85% degradation. When testing the efficiency of the innovation of Makha nursery, it was found that the seedlings grown by the nursery innovation of the Makha tree had a germination rate survival rate and growing higher than seedlings that do not use innovation in cultivation. Keywords: the nursery innovation of the Makha tree, germination, survival rate, growth

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หนา 17 Squares Circumscribed by Circles Nichaphat Meesawat1 , Rutima Sitthisuanjik1 , Sasiyakorn Yaso1 Damrongsak Panyathip2 , Wimonrat Doungprathum2 , Supanee Comesee2 1Student of Roi-Et Wittayalai School, E-mail: [email protected] 2Roi-Et Wittayalai School Abstract Mathematical project “Squares Circumscribed by Circles ” is a project that aims to find the relation of the circle outside the square, both in length and area. The results show that if the side and area of the nth square are ������������ and ������������2 respectively. Find the solution from the formula ������������= ������[221(������−1)] and ������������2=������2[2(������−1)] respectively where ������ is the length of the first square. The diameter, and area of the nth circle derived from the formula ������������ = ������ [212(������−1)] and ������������ = π������2[2(������−3)] respectively where ������������ is the diameter of the ������������ℎ circle, ������������ is the area of the ������������ℎ circle, ������ is the diameter of the first circle, ������ is the set of circular shapes attach outside the square. Keywords: square, quadrature, circle length, circle area

หนา 18 Smart Home Smart Life Project Aphichit Anthapanya1 , Thanthap Noiaunsaen1 , Suwijak Klunkirt1 , Wittaya Wongklang2 1Student of Udonpichairakpittaya School, Email : [email protected] 2Udonpichairakpittaya Abstract Smart Home Smart life was a system created by objectives of 1. To design the system which was able to turn on and off the electric system and indoors water system via mobile application, 2. To protect the sunlight and reduce unnecessary electric resource and water usage, and 3. To increase the comfort of indoors energy management. The Smart Home Smart life system used Arduino board as a main commander and Relay as a controller in each function. The turning on and off of electric system was controlled by Relay directly, but the water system was controlled by solenoid valve. When we applied Smart Home Smart life system with a model house, we found that the Smart Home Smart life system was able to turn on and off the electric and water system inside the house via mobile application. Moreover, it also prevented and decreased the unnecessary electric resource and water usage caused by the forgetfulness of turning off the water tap or electric equipment after using. In conclusion, the Smart Home Smart life system could enhance the comfort of indoors energy management together with control the electric and water system efficiency. Keyword: Smart Home Smart life system.

หนา 19 Wireless notification saline program Sirada Saejueng1 , Sirintra Khrueanet1 , Sanhaporn Poldee1Chatkwan Payom 2 and Patiharn Sakong 1Students from Satri Rachinuthit School , E-mail : sanhaporn. HYPERLINK \"mailto:[email protected]\"2544 HYPERLINK \"mailto:[email protected]\"@gmail.com 2Satrirachinuthit School Abstract This wireless notification saline program is made to serve the hospital for retaining the out number of patients, by having the purpose as the following (1) Making a wireless notification saline program that can actually be used. (2) To create a program that can calculate the speed of administered saline correctly as the doctors order. (3) To make a wireless notification saline program that can replace the wireless notification saline program that are high price on these day. To make this wireless notification saline program This presented have use the mechanism of the sensor that counts the amount of drops by infared sensor, to receive the information of the amount of drops. which processor and ordered by the Arduino nano board. Then send the information from the infared sensor to the program by Module Wi-Fi board. which the program can be used in either computer or telephone. This wireless notification saline program are consisted of five important parts as this following (1) Sensor is the infared sensor that counts the amount of drops by sending the information to the program. (2) Arduino nano board does the ordering of the sensor. (3) Module Wi-Fi board does the work of sending the information from the infared sensor that count the drops to the program.(4) Equipment of a cross shape does the connecting between the saline bag and the saline brine by having the sensor, Arduino nano board, and the Module Wi-Fi board at the equipment. (5) Program does the showing of the report that receive from the Module Wi- Fi , capable of showing the amount of saline that been used including showing the speed of the saline drops (ml/sec). Which can put all the amount of the saline that's been ordered by the doctor for each patient by the program showing the result. The one who take cares can adjust the speed of the saline that is appropriate to each patient by calculating of the program. From making this wireless notification saline program From testing the performance of working, is actually can be made and the nurse is capable of adjusting the appropriate speed for each person, Which this program have the ability of reducing the price from the saline notification machines on these day and from the satisfaction assessment from the hospital or public health officer that uses the wireless notification saline program is the most satisfied in the design total average is 4.21 and the most satisfied in the lead of work 4.30 Key words : Wireless notification saline program , Wi-Fi signal board .

หนา 20 Marvelous Pascal’s triangle and all the possible routes Chunya Chumkasang¹, Panida Santichairat¹, Akkarawin Tatsanapong¹, Saowanit Ardwichai², Jeerakarn Chamnanbungkae² and Kittika Sameenang² ¹ Student of Kalasinpittayasan School, E-mail : [email protected] ² Kalasinpittayasan School Abstract This project is to study Marvelous Pascal’s triangle and the all possible routes. The objectives of this are to study the relationship of Pascal’s triangle with the permutation method and to adapt the relationship between Pascal triangle and permutation. The procedure are as the followings; First, study the relationship of Pascal’s triangle with the permutation method. Second, comply all the information obtained. Select important information and analyze. Third, use the results of the analysis to create a relationship obtained and create shortcut for testing from the relationship of Pascal’s triangle and the permutation method Finally, summarize the results from the study of the Pascal’s triangle binomial theorem and the method of permutation. The result found that there is a relationship in finding the closest possible travel routes if all the Pascal’s triangles placed on the plane where the coordinates are intersection of the vertical axis and the horizontal axis in the quadrilateral, it showed the value of the trip there are a few routes without having to calculate, that use the permutation method from the above relationship. To create shortcut for testing as \"Marvelous Pascal’s Triangle and all the possible routes\" Keywords: The Pascal’s triangle, Permutation method

หนา 21 Wind Energy Model Generator Areeya Oatthasat Nongbuapittayakarn School, E-mail: [email protected] Abstract The project purpose was to study energy generating process, construct and test the efficiency of Wind Energy Model Generator. This generator consists of 24 volts, 30 watts dynamo and the 1.7 centimeters, y-shaped plastic fan blade to study the amount of electricity received. When placing the device to get wind from the fan, mount the device with the bike and place the device to get the natural wind. The study found that Wind Energy Model produced average voltage about 3-6 volts and average current about 50 milliampere at about a meter per second wind velocity. This generator can charge 3 batteries 3.7 volts, 2600 milliampere in 12 hours of fan blade are spinning. Therefore, this generator can meet the conditions according to the educational boundaries, can be used for real as the power supply and safe. Keywords: Wind Energy / Renewable Energy / Generator

หนา 22 Counting Thread by Moiré Film Wachirawan Sithep1 , Sirimat Art-harn1 , Phattarasa Nai-in 1 Kanchana Thongjob2 , Butsaba Techasirinukoon2 1Student of Chumpholphonphisai School , E-mail : [email protected] 2Chumpholphonphisai School Abstract Counting Thread by Moiré Film science project. The purposes of this study were to make moiré film to check the accuracy counting thread, to find the best fabric color that can see the moiré stripe and to find the best fabric that can see the moiré stripe. There is an educational process by use the GSP in design determine the width 1 inch, decide the 1-inch pull line, set a line to a thickness 0.1 mm. After that, Performance verification stripe on moiré film by different sateen colors such as white, red, green, blue and yellow and performance verification stripe on moiré film by different fabric such as sateen, linen and cotton. From the experiment, bring the moiré film that was designed put on the fabric then the streak will appear. It is because the light came in through thread and impact on the thread of the fabric. Therefore, it caused light diffraction. While turning moiré film on the fabric then the streak will appear that correspond light diffraction equation d������������������ ������ = ������������. The fabric sees the clearest streak is a white fabric because LED light with a white fabric become white light that white light is less wavelength visualize the clear streak and educate efficiency of the streak on the moiré film from fabric to find that sateen counts streak the best accurate because the light was well shining through the thin fabric. Keyword: Moiré Film, The Geometer’s Sketchpad Program (GSP)

หนา 23. 1 The Study of Butterfly Diversity in Sriboonrueang Wittayakarn School Keeratika Pipukdee1 Khajornchai Pimsing2 and Sahakorn Jaroenjai2 1Student of Sriboonrueang Wittayakarn School, Email:[email protected] 2Sriboonrueang Wittayakarn School teachers Abstract The Study of Butterfly Diversity in Sriboonrueang Wittayakarn School, Sriboonrueang District, Nongbualamphu province. The purpose of this study were 1) to examine the total of butterfly and 2) to examine the butterfly species in the area of Sriboonrueang Wittayakarn School, In order to register the butterflies of Sriboonrueang Wittayakarn School. The study revealed that there are a total of 189 butterflies, 21 species, 3 families. The family of Pieridae is founded 89 butterflies, Nymphalidae 68, Papilionidae 32 respectively. The statistics using Shannon Wiener Index for data analysis. The diversity index of Nymphalidae family is 0.36679, Pieridae 0.35464, Papilionidae 0.3007 respectively. The total index of all butterfly family is 1.02313. Key words: the butterfly diversity, Butterfly

หนา 24. A study on Ecological of Astraeus Odoratus at Phu pan Royal Development Study Centre, Mueang Sakon Nakhon District, Sakon Nakhon Province Wirasinee singsuphan1 Wanida Kospit2 and Sutthiwan Manphonsri2 1Thatnaraiwittaya School’s student, E-mail: [email protected] 2Thatnaraiwittaya School Abstract Science project name A study on Ecological of Astraeus Odoratus at Phu pan Royal Development Study Centre, Mueang Sakon Nakhon District, Sakon Nakhon Province for study area around Astraeus Odoratus and factor that affect to Astraeus Odoratus at Phu pan Royal Development Study Centre, Mueang Sakon Nakhon District collect result from questionnaire and interview people by no structure interview about Astraeus Odoratus. People said Astraeus Odoratus will grow after heavy rain, windy, thunderstorm and forest fires. The Astraeus Odoratus will grow near rock that have Burma Sal ( Shorea obtusa) and Arundinaria pusilla (Arundinaria pusilla A. Cheval. & A. Camus). Sometime will see Astraeus Odoratus in leaf lap area and always grown in the same area. The survey and collect the result and all information following the environment around forest and Astraeus Odoratus’s area. And another factor example temperature, pH, Soil moisture and Lux intensity. In between May-June 2019 collect the example things in 3 times in 5 village include Ban Na Nok Khoa, Ban Na Kham, Ban Lat Ka Choe, Ban Bon and Ban Huay Yang. The result of questionnaire is the environment around Astraeus Odoratus are around Gurjan (Dipterocarpus alatus Roxb.), Burma Sal (Shorea obtusa), Burmese sal (Shorea siamensis Miq.) the area that have light past. And get another mushroom example soil mushroom, Lentinus polychrous Lev., Amanita wubjunguillea, Lentinus squarrosulas Mont.The Astraeus Odoratus grown in loam soil and Slightly stony. The result of survey is the environment around Astraeus Odoratus have Burma Sal (Shorea obtusa ) and Arundinaria pusilla ( Arundinaria pusilla A. Cheval. & A. Camus) and rock. The Astraeus Odoratus have size between 1.88-2.01 centimeter. The color and shape of Astraeus Odoratus are similar. It’s has white or egg white, light brown and dark brown to black color. The shape of Astraeus Odoratus is round and oval. It’s has temperature between 28.7-29.7 ºC, pH between 6.04-6.31, Soil moisture between 66.67-71.34 % and light intensity between 186-214 LUX. All the factor will control plentiful of forest around Phu pan Royal Development Study Centre, Mueang Sakon Nakhon District. And make awareness for people who live around this forest to love and protect the environment forever. Keywords : Ecology Astraeus Odoratus Phu pan Royal Development Study Centre

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หนา 26 Gyroscope Teslameter from Non-Ferromagnetic material Chulalak Buarat1, Piyathida Pakkathanang1, Sirilak Pawarasri 1, Pennapa Khansawai2, and Jiraphon Bunlad2 1Students of Wapipathum, E-mail: [email protected] 2Wapipathum School Abstract A study project of Gyroscope Teslameter from non-ferromagnetic material. The purpose of this study project is to find out what factors affect to rotation of gyroscope. By using the aluminum (non-ferromagnetic material) plates. By part 1 study the size of aluminum plate, part 2 study magnetic field intensity, and part 3 study the thickness of aluminum plate. The experiment result found that aluminum sheets with a thickness of 0.9 cm have the highest percentage reduction of rounds, which is 97.29 percent of because there is a very thick surface area side, so there is a large magnetic flux change rate. Resulting in the eddy current flow and creating the best delay which is based on Faraday's induction of electric field equations and the direction of the induced electric force according to Lenz’s law. Keyword: Gyroscope Teslameter, non-ferromagnetic, rotation