Pub Date : 2019-07-01DOI: 10.1109/ICEAST.2019.8802530
Teerawat Wangwiwattana, Sayam Saguanrum, Kajornsak Kittimathaveenan, U. Pinsopon
This research explored sound characteristics of eight different strings on Ja-Khay, a Thai classical floor zither. The strings were investigated the suitability of being the first brightest string. Physical properties of each string such as linear density, elastic modulus and tension required to make a 262 Hz C4-note sound were tested and measured. The sound produced by each string was recorded in the recording studio of Music Engineering and Multimedia Department, King Mongkut's Institute of Technology Ladkrabang. Temporal and spectral responses of the sound produced by eight test strings were analyzed. The relationship between physical properties and sound characteristics such as maximum loudness, sustain, richness and brightness of the sound was investigated. The good sound characteristics of three most well-liked strings according to the survey: construction string number 120, tennis string and Saw-U silk string, were confirmed by the analytical data.
{"title":"Experimental Study on Sound Characteristics of Ja-Khay Strings","authors":"Teerawat Wangwiwattana, Sayam Saguanrum, Kajornsak Kittimathaveenan, U. Pinsopon","doi":"10.1109/ICEAST.2019.8802530","DOIUrl":"https://doi.org/10.1109/ICEAST.2019.8802530","url":null,"abstract":"This research explored sound characteristics of eight different strings on Ja-Khay, a Thai classical floor zither. The strings were investigated the suitability of being the first brightest string. Physical properties of each string such as linear density, elastic modulus and tension required to make a 262 Hz C4-note sound were tested and measured. The sound produced by each string was recorded in the recording studio of Music Engineering and Multimedia Department, King Mongkut's Institute of Technology Ladkrabang. Temporal and spectral responses of the sound produced by eight test strings were analyzed. The relationship between physical properties and sound characteristics such as maximum loudness, sustain, richness and brightness of the sound was investigated. The good sound characteristics of three most well-liked strings according to the survey: construction string number 120, tennis string and Saw-U silk string, were confirmed by the analytical data.","PeriodicalId":188498,"journal":{"name":"2019 5th International Conference on Engineering, Applied Sciences and Technology (ICEAST)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128422877","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}
Pub Date : 2019-07-01DOI: 10.1109/ICEAST.2019.8802579
Gina S. Tumang
This study provides assistance to mango farmers in Pampanga by identifying the pests and diseases through leaf and fruit markings in enhancing crop management specifically in pesticide application, addressing one of the main factors of the major decline in Philippines' mango production, which is due to pests and the farmer's uncertainty in using pesticide for each occurrence of pest. Anthracnose, fruit borer and sooty mold were identified using image processing employing multi-SVM and GLCM with 85% accuracy. It was determined by extracting contrast, kurtosis, skewness, and entropy. This research project can be used as a template for other fruit-bearing trees and a basis for crop management per location-based specifically on mango farming using data science.
{"title":"Pests and Diseases Identification in Mango using MATLAB","authors":"Gina S. Tumang","doi":"10.1109/ICEAST.2019.8802579","DOIUrl":"https://doi.org/10.1109/ICEAST.2019.8802579","url":null,"abstract":"This study provides assistance to mango farmers in Pampanga by identifying the pests and diseases through leaf and fruit markings in enhancing crop management specifically in pesticide application, addressing one of the main factors of the major decline in Philippines' mango production, which is due to pests and the farmer's uncertainty in using pesticide for each occurrence of pest. Anthracnose, fruit borer and sooty mold were identified using image processing employing multi-SVM and GLCM with 85% accuracy. It was determined by extracting contrast, kurtosis, skewness, and entropy. This research project can be used as a template for other fruit-bearing trees and a basis for crop management per location-based specifically on mango farming using data science.","PeriodicalId":188498,"journal":{"name":"2019 5th International Conference on Engineering, Applied Sciences and Technology (ICEAST)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121463118","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}
Pub Date : 2019-07-01DOI: 10.1109/ICEAST.2019.8802594
C. Boonseng, D. Suksawat, K. Kularbphettong
Distribution systems that depended on de voltages which do not have reactive power loading the lines do not need to synchronize the grid frequency and the equivalent resistance in the conductor tends to be slightly smaller. Therefore, the systems intrinsically tend to become simpler and more efficient. Microgrids and dc distribution systems applied to data centers bring a potentially higher efficiency improvement, due to the penetration of dc-based loads. The paper also examines the ability of a DC microgrid to facilitate provide high degrees of critical load availability. Relation and transfer power between grid, diesel generator and battery are presented. Using PLC and HMI helps to control the switching conditions. In order to be able to maintain the constant voltage at the DC bus at all times, without stopping to disappear or collapse.
{"title":"Design and Control of DC Microgrids (DCMG) Systems for Improving Reliability and Stability of Data Centers","authors":"C. Boonseng, D. Suksawat, K. Kularbphettong","doi":"10.1109/ICEAST.2019.8802594","DOIUrl":"https://doi.org/10.1109/ICEAST.2019.8802594","url":null,"abstract":"Distribution systems that depended on de voltages which do not have reactive power loading the lines do not need to synchronize the grid frequency and the equivalent resistance in the conductor tends to be slightly smaller. Therefore, the systems intrinsically tend to become simpler and more efficient. Microgrids and dc distribution systems applied to data centers bring a potentially higher efficiency improvement, due to the penetration of dc-based loads. The paper also examines the ability of a DC microgrid to facilitate provide high degrees of critical load availability. Relation and transfer power between grid, diesel generator and battery are presented. Using PLC and HMI helps to control the switching conditions. In order to be able to maintain the constant voltage at the DC bus at all times, without stopping to disappear or collapse.","PeriodicalId":188498,"journal":{"name":"2019 5th International Conference on Engineering, Applied Sciences and Technology (ICEAST)","volume":"39 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125742558","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}
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