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Ionic Liquid 1-Butyl-3-methylimidazolium Bromide ([Bmim][Br]) Acted as Both Solvent and Catalyst for a Green Reaction of Cross Benzoin Condensation 离子液体1-丁基-3-甲基咪唑溴([Bmim][Br])作为交叉苯甲酸缩合绿色反应的溶剂和催化剂
ASEAN Journal of Scientific and Technological Reports Pub Date : 2021-08-22 DOI: 10.55164/ajstr.v24i2.242509
Baramee Phungpis, Kanokkan Worawut, Potchanee Keawkumsan
{"title":"Ionic Liquid 1-Butyl-3-methylimidazolium Bromide ([Bmim][Br]) Acted as Both Solvent and Catalyst for a Green Reaction of Cross Benzoin Condensation","authors":"Baramee Phungpis, Kanokkan Worawut, Potchanee Keawkumsan","doi":"10.55164/ajstr.v24i2.242509","DOIUrl":"https://doi.org/10.55164/ajstr.v24i2.242509","url":null,"abstract":"Cross benzoin condensation using room temperature ionic liquids, namely 1-butyl-3-methylimidazolium bromide ([Bmim][Br]), acted as catalyzed and a solvent under NaOH base condition to afford desired cross-benzoin products 4a-i in satistactory yields (60-70%.) Homo-benzoin condensation 5a-d and 6a also were occurred as side reactions in 9-18% yields.","PeriodicalId":426475,"journal":{"name":"ASEAN Journal of Scientific and Technological Reports","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125363510","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: 1
Develop an Estimating Factor to Help Estimating Masonry Wall Area of Two Stories Houses 建立一个估算因子，以帮助估算两层住宅砌体墙面积
ASEAN Journal of Scientific and Technological Reports Pub Date : 2021-08-22 DOI: 10.55164/ajstr.v24i2.242603
Sunun Monkaew, Chookiat Choosakul
{"title":"Develop an Estimating Factor to Help Estimating Masonry Wall Area of Two Stories Houses","authors":"Sunun Monkaew, Chookiat Choosakul","doi":"10.55164/ajstr.v24i2.242603","DOIUrl":"https://doi.org/10.55164/ajstr.v24i2.242603","url":null,"abstract":"The most complicated and time-consuming step in estimating construction costs in determining the amount of material is a calculation of all areas for masonry works involving tedious processes. A simple estimating tool could assist estimators in estimating the amount of materials with reducing working time. The purpose of this research is to study the proportion of the masonry wall quantity to the building’s area and develop an estimating factor to estimate the masonry wall area of two-stories houses in 59 drawing construction for a case study. Using multiple linear regression analysis for independent variables that influence the dependent variable showed that the building area was an independent variable affecting the masonry wall area. The modeling to test, found that the masonry wall area less than the detailed estimationas 0.50 - 6.78 %. Therefore, the model derived from this research, theref can apply for cost estimation and validation of the masonry wall area calculation of new project quickly.","PeriodicalId":426475,"journal":{"name":"ASEAN Journal of Scientific and Technological Reports","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131560807","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
Isolation and Optimization of Lipase Producing Bacteria from Oil-Contaminated Soils 石油污染土壤中脂肪酶产菌的分离与优化
ASEAN Journal of Scientific and Technological Reports Pub Date : 2021-08-22 DOI: 10.55164/ajstr.v24i2.242336
Preeyanuch Thongpoo
{"title":"Isolation and Optimization of Lipase Producing Bacteria from Oil-Contaminated Soils","authors":"Preeyanuch Thongpoo","doi":"10.55164/ajstr.v24i2.242336","DOIUrl":"https://doi.org/10.55164/ajstr.v24i2.242336","url":null,"abstract":"This research aimed to isolate lipase-producing bacteria from soil samples contaminated with vegetable oil or petrol, and then optimize the conditions for lipase production. The bacteria that could be grown on tributyrin agar supplemented with 1% palm oil and produced a wide clear zone were selected. These selected bacterial isolates were tested for lipase activity, among them, the isolate PKRU-9 had the highest lipase activity. Then, the optimum conditions for lipase production of the PKRU-9 were optimized. The maximum lipase production was obtained when PKRU-9 was cultured in a basal medium containing 0.5% yeast extract as a nitrogen source and 0.5% soybean oil as a carbon source at 200 rpm. After cultivation for 54h, the maximum lipase production was reached. Treatment of wastewater contaminated with lipid of PKRU-9 was studied by culturing the bacterium in synthetic wastewater medium containing 1% palm oil, and in wastewater contaminated with fat. PKRU-9 was able to decrease the value of BOD5 by 74% and 90%, respectively comparing to the starting BOD5. The highest percent reduction of BOD5 was found on day 3 of cultivation. These results suggested that the PKRU-9 has the potential to be used for treating municipal wastewater contaminated with fat.","PeriodicalId":426475,"journal":{"name":"ASEAN Journal of Scientific and Technological Reports","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126193037","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
Saline Inventory Management with Simulation Techniques 盐水库存管理与模拟技术
ASEAN Journal of Scientific and Technological Reports Pub Date : 2021-08-19 DOI: 10.55164/ajstr.v24i2.241654
Jarupong Banthao, Wijai Boonyanusith, Nuanpan Buransri, Panadda Sophatai, Pojjana Thankrathok
{"title":"Saline Inventory Management with Simulation Techniques","authors":"Jarupong Banthao, Wijai Boonyanusith, Nuanpan Buransri, Panadda Sophatai, Pojjana Thankrathok","doi":"10.55164/ajstr.v24i2.241654","DOIUrl":"https://doi.org/10.55164/ajstr.v24i2.241654","url":null,"abstract":"This research aims to study an inventory system for managing saline in four categories at a community hospital. The objective is to conduct an Economic Order Quantity (EOQ) and Reorder Point (ROP) to improve the saline inventory management system. Monte Carlo Simulation technique was applied to analyze saline inventory management policies under uncertain demands, namely; s, Qmax(1), s, Qavg(2), s, Qmin(3), T, Qmax(4), T, Qavg(5), T, Qmin(6), T, S (7), and s, S(8). An optimization technique was used to conduct the suitable policy of saline inventory management. The simulation results stated that the most appropriate policy without affecting shortage and overstocking was s,Qmax policy. Moreover, the comparison of each demand quantity (bottle) in each type of saline (A, B, C, and D) among the proposed policies indicated that the s,Qmax policy yielded the lowest overstocking value compared to each demand in each saline type equal to 0.20, 0.38, 0.32, and 0.37, respectively. This study ca \u0000 ","PeriodicalId":426475,"journal":{"name":"ASEAN Journal of Scientific and Technological Reports","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131479115","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
Effect of Fermented Napier Grass Mixed with Acid Fermented Milk Diet on Nile Tilapia in Cage Culture 发酵纳匹尔草与酸发乳混合饲粮对尼罗罗非鱼网箱养殖的影响
ASEAN Journal of Scientific and Technological Reports Pub Date : 2021-08-19 DOI: 10.55164/ajstr.v24i2.241495
Tanakorn Haemasaton, Nithinun Mungmee
{"title":"Effect of Fermented Napier Grass Mixed with Acid Fermented Milk Diet on Nile Tilapia in Cage Culture","authors":"Tanakorn Haemasaton, Nithinun Mungmee","doi":"10.55164/ajstr.v24i2.241495","DOIUrl":"https://doi.org/10.55164/ajstr.v24i2.241495","url":null,"abstract":"Aquatic animal feed is a key to the growth of aquatic animals, and the raw materials affect production costs. The use of fermented Napier grass mixed with acid fermented milk for Nile tilapia (Oreochromis niloticus). After it was found that the weights of the fishes were increased. ,the daily weight gain and specific growth rates were significantly different (p < 0.05). Among treatments the fish fed with the fermented napier grass at the level of 10 percent had the highest body weight of 55.12 ± 3.90 grams. The survival rates and feed conversion rate were non-significantly different (p > 0.05). Therefore, it could be concluded that the acid fermented milk diet mixed with fermented napier grass at the level of 10 percent could be used for producing the feeds for Nile tilapia.","PeriodicalId":426475,"journal":{"name":"ASEAN Journal of Scientific and Technological Reports","volume":"284 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115805663","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: 1
Opinions on Raising Finishing Pigs of Smallholder Farmers at Mueang Nakhon Si Thammarat District in Nakhon Si Thammarat Province 对那空司他玛拉省Mueang Nakhon Si Thammarat地区小农饲养育肥猪的意见
ASEAN Journal of Scientific and Technological Reports Pub Date : 2021-08-16 DOI: 10.55164/ajstr.v24i2.241526
Somphon Noppakeua, Yenying Chongchit
{"title":"Opinions on Raising Finishing Pigs of Smallholder Farmers at Mueang Nakhon Si Thammarat District in Nakhon Si Thammarat Province","authors":"Somphon Noppakeua, Yenying Chongchit","doi":"10.55164/ajstr.v24i2.241526","DOIUrl":"https://doi.org/10.55164/ajstr.v24i2.241526","url":null,"abstract":"The research aimed to study: 1) general information of smallholder farmers and finishing pig raising conditions, 2) opinions of the farmers on raising finishing pigs at Mueang District, Nakhon Si Thammarat Province. The research population was a group of 172 finishing pig farmers at Mueang District, Nakhon Si Thammarat Province. The sample of 120 were selected using a multistage sampling formula in which reliability and validity assessed questionnaires were used. The results showed that 55% of the samples are female farmers approximately aged 58 years old, with primary education, raising pigs as the main career with an average monthly income at 23,588 Baht and average monthly farming expense at 11,599 Baht. The opinions in descending order were farming area (=4.67), distribution and returns (=4.35), current raising conditions ( =4.17), sustainability ( =3.71), feed management and sanitation ( =3.08), farming equipment ( =2.87), funding ( =2.09), and government service ( =1.42). These indicate that farming areas have highly positive opinion because of adequate utility and good quality of drinking water resources and relatively high on the distribution and returns as it is a major household income. The funding has a low score because of inadequate funding and the government service needs an improvement. In conclusion, this research will be used as a further guideline for government and private sectors to promote the raised of finishing pigs. \u0000 ","PeriodicalId":426475,"journal":{"name":"ASEAN Journal of Scientific and Technological Reports","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121076467","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
Site Suitability Analysis for Electronic Waste Collection: A Case Study in Ban Kok Sub-district, Khueang Nai District, Ubon Ratchathani Province 电子垃圾收集地点适宜性分析:以汶叻差他尼省古奈区班角街道为例
ASEAN Journal of Scientific and Technological Reports Pub Date : 2021-08-16 DOI: 10.55164/ajstr.v24i2.241710
Krittawit Sukueng, Ketsara Ruangkitchaya, Kunlawan Sorach, Anuwat Yindesuk, Teerawan Boontoseang
{"title":"Site Suitability Analysis for Electronic Waste Collection: A Case Study in Ban Kok Sub-district, Khueang Nai District, Ubon Ratchathani Province","authors":"Krittawit Sukueng, Ketsara Ruangkitchaya, Kunlawan Sorach, Anuwat Yindesuk, Teerawan Boontoseang","doi":"10.55164/ajstr.v24i2.241710","DOIUrl":"https://doi.org/10.55164/ajstr.v24i2.241710","url":null,"abstract":"The study aimed to study selection of electronic waste collection site based on 6 environmental factors including distance from community, slope, digital elevation model, distance from water resources, distance from road and land use integrated with analytic hierarchy process (AHP) model in QGIS Version 2.18.5. AHP model was designed based on questionnaire, made by 7 experts, to examine important environmental criteria and assign importance values of each criteria for selecting suitable electronic waste collection site. In addition, suitable electronic waste collection sites derived from AHP were verified by field survey. The results showed that percentage of very suitable, moderate suitable, less suitable and unsuitable sites for electronic waste collection were 13.26 %, 58.10 %, 21.77 % and 6.87 %, respectively.","PeriodicalId":426475,"journal":{"name":"ASEAN Journal of Scientific and Technological Reports","volume":"67 15","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132623969","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
Bathymetric Resolution Analysis of the Gulf of Thailand 泰国湾的水深分辨率分析
ASEAN Journal of Scientific and Technological Reports Pub Date : 2021-08-16 DOI: 10.55164/ajstr.v24i2.240685
Pachoenchoke Jintasaeranee, Chantima Piyapong
{"title":"Bathymetric Resolution Analysis of the Gulf of Thailand","authors":"Pachoenchoke Jintasaeranee, Chantima Piyapong","doi":"10.55164/ajstr.v24i2.240685","DOIUrl":"https://doi.org/10.55164/ajstr.v24i2.240685","url":null,"abstract":"The GEBCO30 bathymetric data resolution 0.5 nautical miles in the Gulf of Thailand were corrected by comparison with the digitized Navigation Charts data from 47 charts in total that were surveyed and published between 1991 and 2005. The correction of bathymetric data and modification of map resolution from 926 meters to 200 and 50 meters were done by using scripts of the Generic Mapping Tools (GMT) programming. The result showed that the corrected GEBCO30 data in the Gulf of Thailand resolution 50 meters had 27,704,202 data and depth ranges (-97.99) – (2.51) meters. 99.07% of the data showed the discrepant depths with total horizontal uncertainty within 95% confidence level of ±10 meters. All of the data showed the discrepant depths with total vertical uncertainty within 95% confidence level of ±1.3685 meters and the value of Standard Deviation (SD) of 0.1945 that was better than the resolution 926 and 200 meters, respectively. The corrected GEBCO30 bathymetric data and adjusted resolution to 50 meters had the confidence following the standard of the International Hydrographic Organization, and all data also showed SD less than 1% of water depth.","PeriodicalId":426475,"journal":{"name":"ASEAN Journal of Scientific and Technological Reports","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114772676","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
Natural Radionuclides in Medicinal Plants and Forages from a Granite Mountain area, Phangan Island, Surathani Province. 素腊他尼省潘岸岛花岗岩山区药用植物和饲料中的天然放射性核素。
ASEAN Journal of Scientific and Technological Reports Pub Date : 2021-08-16 DOI: 10.55164/ajstr.v24i2.241856
P. Kaewtubtim, U. Youngchuay, Mubarak Lakkiang
{"title":"Natural Radionuclides in Medicinal Plants and Forages from a Granite Mountain area, Phangan Island, Surathani Province.","authors":"P. Kaewtubtim, U. Youngchuay, Mubarak Lakkiang","doi":"10.55164/ajstr.v24i2.241856","DOIUrl":"https://doi.org/10.55164/ajstr.v24i2.241856","url":null,"abstract":"The radioactive nuclides were a cancer causing agent. They have a source of origin from nature and man-made. The natural radioactive elements were found in granite rock. The purpose of this research were analyze the activity of radioactive nuclides (226Ra, 232Th and 40K) in herbs and forage plant samples from Koh Phangan District, Surat Thani Province and to analyze the Annual external effective dose rate (E). A total of 20 species of plants, including medicinal plants and food chains plant were randomly sampled. The plant samples were analyzed by the gamma spectrometry system with high-purity germanium (HPGe) detector. It was found that the radioactive nuclides of 226Ra, 232Th and 40K were ranged from 6.75 ± 0.16 to 61.55 ± 0.48, 1.76 ± 0.15 to 34.24 ± 0.25 and 330.74 ± 0.37 to 1337.54 ± 0.64 Bq/kg, respectively. In addition, the Annual external effective dose rate (E) in all plants were lower than required (UNSCEAR, 2000).","PeriodicalId":426475,"journal":{"name":"ASEAN Journal of Scientific and Technological Reports","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116095155","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
Determination of Longkong (Lansium domesticum Corr.) by Microwave Sensor Technique 微波传感器技术测定龙岗(Lansium domestic Corr)的含量
ASEAN Journal of Scientific and Technological Reports Pub Date : 2021-04-27 DOI: 10.55164/ajstr.v24i1.241379
Nikrosana Niksoh, P. Phansuke, Pungtip Kaewtuptim
{"title":"Determination of Longkong (Lansium domesticum Corr.) by Microwave Sensor Technique","authors":"Nikrosana Niksoh, P. Phansuke, Pungtip Kaewtuptim","doi":"10.55164/ajstr.v24i1.241379","DOIUrl":"https://doi.org/10.55164/ajstr.v24i1.241379","url":null,"abstract":"The purpose of this research is to determine the suitable harvest index for harvesting Longkong bunches for export to overseas or distant markets. The technique for analyzing concentration of microwave through Longkong fruit with microwave optics was used. The results from the microwave concentration analysis were compared with the ratio of total soluble solids to acid content (TSS: TA) of Longkong fruit ages of 85-120 days after anthesis. The results showed that the concentration of microwave was in the range of 0.75-0.58 mA, which the Longkong fruit have the ages of 91-103 days after anthesis and TSS: TA was between 6.13-9.86. The Longkong fruit has yellow skin, firmly attached to Longkong bunch, and a sweet taste, suitable for export to distant markets or overseas. For the concentration of microwave in the range of 0.58-0.41 mA, the TSS: TA was in the range of 9.86-13.55, in which the Longkong fruit was 103-115 days after anthesis, the Longkong fruits are very sweet, and the skin is dark yellow, tasty. It was suitable for selling near the orchardt.","PeriodicalId":426475,"journal":{"name":"ASEAN Journal of Scientific and Technological Reports","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125351261","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
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