ASEAN Journal of Scientific and Technological Reports最新文献_第4页

An Experimental Set for Studying the Changing State of Matter with Smart Learning Media Displayed Through the IoT System for Smart-Lab 通过智能实验室物联网系统显示的智能学习媒体研究物质状态变化的实验装置

ASEAN Journal of Scientific and Technological Reports Pub Date : 2022-11-20 DOI: 10.55164/ajstr.v25i4.247317

Jiraporn Chomanee, Nisagorn Nakarang, Sek Handee, Patchara Choksuriwong, Supagorn Katathikarnkul, Tanchanok Poonsin

{"title":"An Experimental Set for Studying the Changing State of Matter with Smart Learning Media Displayed Through the IoT System for Smart-Lab","authors":"Jiraporn Chomanee, Nisagorn Nakarang, Sek Handee, Patchara Choksuriwong, Supagorn Katathikarnkul, Tanchanok Poonsin","doi":"10.55164/ajstr.v25i4.247317","DOIUrl":"https://doi.org/10.55164/ajstr.v25i4.247317","url":null,"abstract":"The purposes of this research were to develop and find the quality of the experimental set for studying the changing state of matter with smart learning media displayed through the IoT system. The data collection tools used in this research were 1) the accuracy percentage, 2) a suitability assessment form 3) a learning achievement test in “changing state of matter” and 4) satisfaction questionnaires. The statistics for analyzing the collected data were mean (), percentage, standard deviation (S.D.), and t-test dependent. The result showed that the Digital Thermo Sensor had 98.5% accuracy in 30 -100 compared with the standard thermometer. The experimental set was used to determine the melting points of pure substances, Naphthalene, Biphenyl, and water’s boiling point. The result found that the accuracy of melting point of Naphthalene and Biphenyl and the boiling point of water was 99.87, 99.75, and 99.99, respectively. The quality of the experimental set was also studied. Three experts evaluated the developed experiment set at a very good level. The experimental set successfully developed students’ understanding of a change of state concept. About 80% of students scored above the prescribed criterion of 70% of the total score. After learning, the scores of the students were higher than those before learning at a confidence level of 0.01. 30 grade-10 students evaluated the satisfaction evaluation at an excellent level. Therefore, the experimental set developed suitable for student learning in the topic of change of state effectively.","PeriodicalId":426475,"journal":{"name":"ASEAN Journal of Scientific and Technological Reports","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115951441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Water Quality Improvement by Wild Bacilli Isolated from Marine Environments 从海洋环境中分离的野生杆菌改善水质

ASEAN Journal of Scientific and Technological Reports Pub Date : 2022-11-20 DOI: 10.55164/ajstr.v25i4.247454

Rungnapa Keawkong, Onanong Siriboon, S. Chankaew, Y. Sangnoi, A. Uppabullung

{"title":"Water Quality Improvement by Wild Bacilli Isolated from Marine Environments","authors":"Rungnapa Keawkong, Onanong Siriboon, S. Chankaew, Y. Sangnoi, A. Uppabullung","doi":"10.55164/ajstr.v25i4.247454","DOIUrl":"https://doi.org/10.55164/ajstr.v25i4.247454","url":null,"abstract":"Huge feed volume and shrimp density loading in the intensive shrimp culture decreased water quality. Ammonia and nitrite, which are toxic substances, are occurred from feed and shrimp excretion. Bacillus and related genera (class Bacilli) are bacteria capable of transforming ammonia to nitrite and then nitrite to nitrate by nitrification. In this study, wild marine Bacilli were isolated from samples collected from seagrass beds Andaman Sea, Thailand. Bacilli strains were obtained by using the heat-shock method. Three bacilli bacteria were consisting of Bacillus sp. BC02 (DNA-based), Bacillus sp. BC05 (morphology-based) and Virgibacillus sp. BC06 (DNA-based) was obtained. This study aims to investigate these isolates in shrimp wastewater improvement compared with the commercial seed of Bacillus spp. product (PM-1). Seven wastewater treatments were separately tested by adding different formulas of bacteria. Each treatment was added for 1% (w/v) of 107 CFU/mL density and incubated for 7 days. Treatment of BC02+BC05 showed a significant TSS decrease (66.56%) and produced the highest nitrate concentration. The highest increase of OTP (84.97%) was found in the treatment of BC02+BC05+BC06. PM-1 product has presented the best BOD lessening (54.35%) and showed a non-significant reduction of ammonia (98.60%) with the highest nitrite (0.685 ± 0.009 mg/L) at the end of the experiment. Virgibacillus (BC06) has resulted in the highest significant reduction of COD (60.39%). Thus, it might be summarized that three marine isolates of Bacillus, Virgibacillus, and commercial PM-1 product have excellent potential to improve wastewater quality with no significant diferent. Marine Bacilli can be substitution used for commercial PM-1 products.","PeriodicalId":426475,"journal":{"name":"ASEAN Journal of Scientific and Technological Reports","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114687536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Plasma Instability During ITBs Formation with Pellet Injection in Tokamak 托卡马克注入颗粒形成ITBs过程中的等离子体不稳定性

ASEAN Journal of Scientific and Technological Reports Pub Date : 2022-11-20 DOI: 10.55164/ajstr.v25i4.247569

P. Klaywittaphat, T. Onjun, R. Picha, J. Promping, B. Chatthong

{"title":"Plasma Instability During ITBs Formation with Pellet Injection in Tokamak","authors":"P. Klaywittaphat, T. Onjun, R. Picha, J. Promping, B. Chatthong","doi":"10.55164/ajstr.v25i4.247569","DOIUrl":"https://doi.org/10.55164/ajstr.v25i4.247569","url":null,"abstract":"JET H-mode plasma discharge 53212 simulation during the pellet fueling operation in the presence of an internal transport barrier is carried out using the 1.5D BALDUR integrated predictive modelling code. The plasma instability during ITB formation with pellet injection in a tokamak is investigated. These simulations use a neoclassical transport model and an anomalous transport model (either multimode or mixed Bohm/gyro-Bohm core transport model). The boundary condition is described at the top of the pedestal, which is calculated theoretically based on a combination of magnetic and flow shear stabilization pedestal width scaling and an infinite-n ballooning pressure gradient model. The toroidal flow calculation is based on the neoclassical viscosity toroidal velocity model. It was found that the shallower pellet does not destroy the ITB, which locating mainly between r/a = 0.8 and 0.9. Moreover, in the plasma center region (0.4<r/a<0.6) the effective electron thermal diffusivities do not change during the ablation time. However, the effective electron thermal diffusivities decrease after pellet ablation, which means a shallower pellet can improve the internal transport barrier.","PeriodicalId":426475,"journal":{"name":"ASEAN Journal of Scientific and Technological Reports","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131401502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrosion of Low Carbon Steel in Chloride Containing Environment 低碳钢在含氯环境中的腐蚀

ASEAN Journal of Scientific and Technological Reports Pub Date : 2022-11-20 DOI: 10.55164/ajstr.v25i4.247174

Tosapolporn Pornpibunsompob, Sittha Saidarasamoot, Sawitri Phabjanda, Teeratas Pornyungyuen, Apirath Gositanon, Suradet Chalermboon, Ploypilin Nakaracha

{"title":"Corrosion of Low Carbon Steel in Chloride Containing Environment","authors":"Tosapolporn Pornpibunsompob, Sittha Saidarasamoot, Sawitri Phabjanda, Teeratas Pornyungyuen, Apirath Gositanon, Suradet Chalermboon, Ploypilin Nakaracha","doi":"10.55164/ajstr.v25i4.247174","DOIUrl":"https://doi.org/10.55164/ajstr.v25i4.247174","url":null,"abstract":"This research aims to investigate the corrosion of low-carbon steel in a chloride-containing environment. The investigation started by preparing and studying the surface condition of the specimens. The mechanical properties, microstructures and chemical compositions were also comparatively investigated between standard and corroded specimens. The results showed that the surface of the corroded samples was rough and peeling, different from the standard specimens, which were relatively smooth and non-corrosive. The average ultimate tensile strength and average yield strength of normal specimens were higher than those of corroded specimens at 5.39% and 2.32%, respectively. The corrosion products developed on the surface of corroded specimens caused a high-stress concentration area. The specimen is more prone to cracks and breaks when subjected to tensile stress. The surface of the normal specimen was composed of iron, oxygen, carbon, and silicon. In contrast, the surface of the corroded specimen contained the same elements as the normal specimen except chlorine which was detected. The film layer of the corroded specimen was cracked in contrast with the normal specimen, where the film still covered the metal substrate. The chemical composition analysis found that the corroded specimen's film layer contained chlorine, which is not detected in the film layer of the normal specimen. This is because the film layer of hot-rolled steel remains porous even passing the hot-rolling process. These pores allow chloride ions to diffuse and react with the film layer and the metal substrate. This makes the film layer of the corroded specimen thicker and initiates cracks. When stable alpha-iron-oxyhydroxide is formed on the steel surface, it can help to suppress corrosion.","PeriodicalId":426475,"journal":{"name":"ASEAN Journal of Scientific and Technological Reports","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127776599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Period Change Study of the Contact Binary System YY Eri 接触双星系统周期变化的研究

ASEAN Journal of Scientific and Technological Reports Pub Date : 2022-09-29 DOI: 10.55164/ajstr.v25i3.246953

Warisa Pancharoen, W. Maithong

引用次数: 0

Annual Dose Analysis of Pottery from Thoud-Ta Thoud-Yai Archaeological Site in the Songkhla Province of Southern Thailand 泰国南部宋卡省Thoud-Ta Thoud-Yai考古遗址陶器的年剂量分析

ASEAN Journal of Scientific and Technological Reports Pub Date : 2022-09-29 DOI: 10.55164/ajstr.v25i3.247180

T. Vichaidid, Piyawan Latam

引用次数: 1

AI System Design for Robotic Hand to Play the Piano 机器手弹钢琴的人工智能系统设计

ASEAN Journal of Scientific and Technological Reports Pub Date : 2022-09-29 DOI: 10.55164/ajstr.v25i3.246950

Wuttichon Aukkhosuwan, W. Suntiamorntut

{"title":"AI System Design for Robotic Hand to Play the Piano","authors":"Wuttichon Aukkhosuwan, W. Suntiamorntut","doi":"10.55164/ajstr.v25i3.246950","DOIUrl":"https://doi.org/10.55164/ajstr.v25i3.246950","url":null,"abstract":"Robotic and Artificial Intelligent (AI) have been introduced as a key factor for industry revolution4.0. Many industries, such as manufacturing, agriculture, logistics, supply chain, and so on, are transformed and applied robotic and AI to enhance productivity and reduce cost. AI in creative work is very challenging, especially in music. This paper presents a system to enable the robotic arm to play piano notes with minimal errors. We used the knowledge of Optical music recognition (OMR), Automatic music transcription (AMT), Music source separation (MSS), and the elimination of robot arm cycle times problems for creating this system. The robotic arm used in testing with this system was LEGO. It can perform 4 functions. The first function is to play piano notes from sheet piano using Sheet Vision and Tesseract-OCR. Note reading accuracy is 21.36%, and note reading accuracy with note duration is 13.46%. The second function is to play the piano like a piano sound separate from a music file using Spleeter and Onsets and Frames. Piano note accuracy is 58.32%, piano note onset time error is ± 0.17, and piano note duration time error is ± 0.65. The third function is to play piano notes from real-time piano sounds using Onsets and Frames Real-time mode. The last function is to play the piano notes from the brain waves by comparing the frequency of the brain waves with the frequency of the piano notes. The design and experimental results are explained in this paper.","PeriodicalId":426475,"journal":{"name":"ASEAN Journal of Scientific and Technological Reports","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121213995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

การพัฒนาแอปพลิเคชันเพื่อการสืบค้นอาหาร ถนนแห่งอาหารเมืองหาดใหญ่ 开发搜索食物的应用程序，食物的道路，城市，主要的海滩。

ASEAN Journal of Scientific and Technological Reports Pub Date : 2022-09-29 DOI: 10.55164/ajstr.v25i3.243874

Aroonrak Tunpanit, Patcharin Bunnoon, Pichet Suwanno, Taksuriya Madsa

引用次数: 0

Improving Cluster-Based Index Structure for Approximate Nearest Neighbor Graph Search by Deep Learning-Based Hill-Climbing 基于深度学习的爬坡改进聚类索引结构的近似近邻图搜索

ASEAN Journal of Scientific and Technological Reports Pub Date : 2022-09-28 DOI: 10.55164/ajstr.v25i3.247183

Munlika Rattaphun, Amorntip Prayoonwong, Chih-Yi Chiu, Kritaphat Songsri-in

引用次数: 0

Effects of Dietary Protein Levels on the Stage Development and Production Performance of Nile Tilapia 饲粮蛋白质水平对尼罗罗非鱼期发育及生产性能的影响

ASEAN Journal of Scientific and Technological Reports Pub Date : 2022-09-28 DOI: 10.55164/ajstr.v25i3.246355

Nisarat Tippayadara, Kanokkan Worawut, Baramee Phungpis

{"title":"Effects of Dietary Protein Levels on the Stage Development and Production Performance of Nile Tilapia","authors":"Nisarat Tippayadara, Kanokkan Worawut, Baramee Phungpis","doi":"10.55164/ajstr.v25i3.246355","DOIUrl":"https://doi.org/10.55164/ajstr.v25i3.246355","url":null,"abstract":"Lack of understanding in selecting age-appropriate protein levels in the tilapia diet would result in low growth and productivity. Therefore, the effect of dietary protein levels on tilapia development and the productive potential of fry raised in concrete ponds according to the CRD experimental protocol was investigated using three treatments with four replications. Fifteen breeder fish/ponds with a male-to-female ratio of 1:2 were fed with 15.5, 25, and 30% protein for 20 weeks. The water quality was monitored and the fish's mouth was tapped every 2 weeks. The results showed that feeding of 25% protein affected egg development at all stages (Zygote, Cleavage, Gastrula, Segmentation, Pharyngula, Hatching, Early larva, and Late larva) as well as production cost better than other feeds (p<0.05). Breeders fed 30% protein had a higher average weight, specific growth rate, condition factor, and feed efficiency but the lowest feed intake, feed rate, and feed conversion rate (p<0.05). A 25% protein diet provides adequate nutrition for hatching and fries production while keeping the pond water safe for their lives.","PeriodicalId":426475,"journal":{"name":"ASEAN Journal of Scientific and Technological Reports","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123853961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0