Advances in Science and Technology最新文献

School of Engineering and Engineering Technology Annual Conference (SEET Conference) 工程与工程技术学院年会（SEET 年会）

Advances in Science and Technology Pub Date : 2024-07-23 DOI: 10.4028/b-pqln5s

T. Abioye

引用次数: 0

The 9th International Scientific Conference on Advances in Mechanical Engineering (ISCAME) 第九届国际机械工程进展科学会议（ISCAME）

Advances in Science and Technology Pub Date : 2024-07-12 DOI: 10.4028/b-frd3af

Tamás Mankovits, Mihály Csüllög

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10th International Conference on Advanced Materials, Mechanics and Structural Engineering (AMMSE) 第 10 届先进材料、力学与结构工程国际会议 (AMMSE)

Advances in Science and Technology Pub Date : 2024-06-10 DOI: 10.4028/b-fvvr5s

Dong Keon Kim

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Total Art and Science, and Engineering and Industrial Technology (2nd SICTAS and 3rd ICEIT) 艺术与科学、工程学与工业技术综合学科（第二届 SICTAS 和第三届 ICEIT）

Advances in Science and Technology Pub Date : 2024-04-23 DOI: 10.4028/b-5godyw

Prasopchai Patrojanasophon, Boonnada Pamornpathomkul, Panupun Limpachayaporn, Wasu Chaitree, Natthanon Phonchai, Peerapong Pakawanich, Kantida Pancharoen

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Morphology and Properties of Poly(Lactic Acid)/Ethylene Propylene Diene Monomer Blends with Micro-Cellulose Fibers from Paper Pulp 聚乳酸/乙烯-丙烯-二烯单体与纸浆中的微纤维素纤维共混物的形态和性能

Advances in Science and Technology Pub Date : 2024-04-23 DOI: 10.4028/p-d4crni

Pattara Somnuake, Phirapong Puttawong, S. Wacharawichanant

{"title":"Morphology and Properties of Poly(Lactic Acid)/Ethylene Propylene Diene Monomer Blends with Micro-Cellulose Fibers from Paper Pulp","authors":"Pattara Somnuake, Phirapong Puttawong, S. Wacharawichanant","doi":"10.4028/p-d4crni","DOIUrl":"https://doi.org/10.4028/p-d4crni","url":null,"abstract":"This work studied the effect of micro-cellulose fibers prepared from paper pulp on the mechanical and thermal properties of poly(lactic acid) (PLA) and ethylene propylene diene monomer (EPDM) copolymer blends. The FE-SEM shows the micron size of cellulose fibers, and Fourier transform infrared (FTIR) spectroscopy analysis showed that the functional groups of lignin disappeared after passing the synthesis method. An internal mixer prepared the polymer blends and composites, and then samples were molded by compression molding. The results found that the dispersed phase of an EPDM phase was coalescence to droplets on the PLA matrix phase. The micro-cellulose in the polymer was not a homogeneous phase in the polymer matrix. The mechanical properties of polymer blends found that EPDM could improve the strain at break of PLA/EPDM blends when compared with pure PLA and decreased when increasing cellulose fiber content in the polymer matrix. The result of thermal properties found that the cellulose addition affected percent crystallinity but did not affect melting point temperature and glass transition temperature.","PeriodicalId":511802,"journal":{"name":"Advances in Science and Technology","volume":"36 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140667824","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

Application of Rice Straw Cellulose for Oil-Water Separation 稻草纤维素在油水分离中的应用

Advances in Science and Technology Pub Date : 2024-04-23 DOI: 10.4028/p-tshi2a

Sunita Lunsamrong, Nutnicha Wongnak, Gornsikeid Sahavattarnakorn, A. Buasri

{"title":"Application of Rice Straw Cellulose for Oil-Water Separation","authors":"Sunita Lunsamrong, Nutnicha Wongnak, Gornsikeid Sahavattarnakorn, A. Buasri","doi":"10.4028/p-tshi2a","DOIUrl":"https://doi.org/10.4028/p-tshi2a","url":null,"abstract":"Due to the high annual production of rice, rice straw has become a numerous agricultural waste product. We propose in this paper to produce oil sorbent for oil-water separation from waste rice straw fibers. Rice straw cellulose were extracted using 5 wt.% sodium hydroxide (NaOH) at 90 °C for 2 hours. After washing with water, rice straw fibers were tested with litmus paper until pH was neutral. A 20-minute boil was applied to sticky rice flour and water. A strainer was placed on the boiling sticky rice flour. Rice straw fibers were delicately spun, placed in the sieve, and dried at 60 °C for 24 hours. The identification of rice straw cellulose was accomplished through the utilization of Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM). In order to evaluate the oil absorption capacity, it is necessary to introduce rice straw into a designated container. Adsorption was measured at time intervals of 10, 20, and 30 minutes. Cease the act of quantifying temporal intervals beyond the predetermined duration. Extract the specimen from its receptacle and proceed to measure its weight. To maximize the %adsorption, the oil sorbent weight, adsorption time, and contact area were considered. The maximum adsorption capacity of 175.67% was obtained by optimizing the following parameters: oil sorbent weight of 30.10 g, adsorption time of 30 min, and contact area of 6.25 cm2. The oil sorbent, which uses waste rice straw fibers as raw materials, may have a good application possibility in the remediation of oil spills, industrial waste water, and waste water from households.","PeriodicalId":511802,"journal":{"name":"Advances in Science and Technology","volume":"29 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140667640","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

Optimization of Oil Adsorption by Using Eggshell as an Oil Adsorbent 利用蛋壳作为油类吸附剂优化油类吸附效果

Advances in Science and Technology Pub Date : 2024-04-23 DOI: 10.4028/p-23okfm

Romchat Buaban, Kaewpilin Pattanpornpong, Theapparat Doksoy, V. Loryuenyong

{"title":"Optimization of Oil Adsorption by Using Eggshell as an Oil Adsorbent","authors":"Romchat Buaban, Kaewpilin Pattanpornpong, Theapparat Doksoy, V. Loryuenyong","doi":"10.4028/p-23okfm","DOIUrl":"https://doi.org/10.4028/p-23okfm","url":null,"abstract":"A rise in shipping activities, such as oil exploration, production, storage, and transportation, is a result of increasing demand and needs for oil among consumers worldwide. The risk of oil spills causing marine pollution has increased as a result of these activities. Adsorption is a cost-effective and straightforward method for removing contaminants from water. The use of residuals as adsorbents can improve the process's sustainability and cost-effectiveness. This study suggests using eggshells as an oil adsorbent. Eggshells were cleaned with water and dried in sunlight. Heated treatment in an oven at 70 °C for 1 hour followed by careful grinding. Overall, the specimen was filtered through a 60-200 mesh sieve (74-250 mm). X-ray diffraction (XRD), X-ray fluorescence (XRF), and scanning electron microscopy (SEM) were utilized to characterize the eggshell. The results revealed that eggshell is composed of calcium (Ca) at a 98.46 atomic percent concentration. The highest palm oil adsorption capacity of 38.01 mL was achieved by optimizing the following parameters: adsorption time of 26.15 min, agitation speed of 357.62 rpm, and weight of adsorbent, which was 19.98 g. The findings demonstrated that eggshell is an effective biosorbent for the removal of oil from water. It will offer a low-cost method of cleaning the oily and contaminated water environment, thereby protecting both human health and the lives of aquatic organisms.","PeriodicalId":511802,"journal":{"name":"Advances in Science and Technology","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140668775","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

Development of Biodegradable Poly(Lactic Acid)/Lignin Treated Alkyl Ketene Dimer Properties for Packaging Applications 开发用于包装应用的可生物降解聚乳酸/木质素处理烷基酮二聚体特性

Advances in Science and Technology Pub Date : 2024-04-23 DOI: 10.4028/p-8xjsrk

Wikoramet Teeka, Khemthat Srisujaritpanich, Pattara Somnuake, S. Wacharawichanant

{"title":"Development of Biodegradable Poly(Lactic Acid)/Lignin Treated Alkyl Ketene Dimer Properties for Packaging Applications","authors":"Wikoramet Teeka, Khemthat Srisujaritpanich, Pattara Somnuake, S. Wacharawichanant","doi":"10.4028/p-8xjsrk","DOIUrl":"https://doi.org/10.4028/p-8xjsrk","url":null,"abstract":"In this work, PLA/lignin treated AKD composites have been developed for packaging applications. The composites were prepared by a thermal processing. The lignin was prepared from the black liquor which is the waste of paper industry by extracting acetic acid and filtering. The resulting lignin has a structure of syringlyl unit (S) and guaiacyl unit (G) because use eucalyptus is a shaft wood use in the paper industry. The lignin contents the PLA matrix were 0.1, 0.3 and 0.5 phr and the improvement of lignin properties by using AKD in ratio 10:1 of lignin and AKD is caused by the reaction between the AKD and the OH group of lignin to from bond called β-ketone ester bond. The treatment of lignin with AKD showed the increase of hydrophobicity and good dispersion in PLA. SEM results of PLA/lignin and PLA/lignin treated AKD showed that when the lignin content increased, the surface roughness was observed except 0.5 phr of PLA/lignin treated AKD composites. The lignin addition decreased the tensile strength of PLA/lignin composites, whereas the PLA/lignin treated AKD at 0.5 phr had similar mechanical properties with neat PLA. Fourier-transform infrared (FTIR) spectroscopy found to be non-crystalline, consistent with differential scanning calorimeter (DSC) results indicated that the enthalpy of crystallization was equal to the enthalpy of melting. Moreover, X-ray diffraction (XRD) result did not appear the peaks. UV-vis analysis indicated the light transmission was protected with increasing lignin contents. Water contact angle test (WCA) results indicated that lignin had a decreasing effect on the waterproofing of the material, but the lignin treated with AKD has a water contact angle similar to that neat PLA.","PeriodicalId":511802,"journal":{"name":"Advances in Science and Technology","volume":"117 40","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140669391","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

Development of Low-Cost Particulate Matter Monitoring Drone System 开发低成本颗粒物监测无人机系统

Advances in Science and Technology Pub Date : 2024-04-23 DOI: 10.4028/p-wwl5jw

Danutawat Tipayarom, Tiwat Santisophonkul, Aungsiri Tipayarom

{"title":"Development of Low-Cost Particulate Matter Monitoring Drone System","authors":"Danutawat Tipayarom, Tiwat Santisophonkul, Aungsiri Tipayarom","doi":"10.4028/p-wwl5jw","DOIUrl":"https://doi.org/10.4028/p-wwl5jw","url":null,"abstract":"Currently, the predominant methodology for assessing air quality in Thailand entails the deployment of air quality monitoring stations. In particular, EGAT's power facilities presently employ such stations for air quality assessment. The use of drones for air quality measurements reduces the variability of measurements and can determine the primary source of the air pollution. Therefore, the air quality monitoring system by unmanned aerial vehicles or drones will be a guideline that can be used to effectively reduce the time and cost of air quality monitoring in and around EGAT's power plants. The objective of this endeavor is to engineer a drone system integrated with specialized sensors for the purpose of real-time monitoring and data acquisition of air quality parameters, with results seamlessly relayed to an Internet of Things (IoT) platform. Applying drone is successful to implement air quality monitoring which parameters are PM2.5 and PM10. This drone can monitor particulate matter at both PM2.5 and PM10 concentration while this monitoring data is recorded and sent to an IOT platform, called Things.egat.co.th platform. In this experiment, the result shows that the air quality data from drone is comparable with the data of EGAT’s air quality mobile station. The results of PM2.5 and PM10 concentration were real-time displayed in the dashboard as graphs. This graphical interface facilitates comparisons over time, accessible via mobile phones or computers with uninterrupted internet connectivity. The average relative errors for PM concentrations measured by the cost-effective air quality monitoring drone systems stand at 7%, signifying a reliable means for monitoring particulate matter within an atmospheric context. It is therefore, established that this advancement in drone technology for Air Quality Monitoring attains the status of low-cost prototype of particulate matter monitoring drone system tailored for EGAT.","PeriodicalId":511802,"journal":{"name":"Advances in Science and Technology","volume":"53 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140666182","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

Powder Chalk as a Solid Base Heterogeneous Catalyst for Biodiesel Generation: Process Optimization via Box-Behnken Model 粉末白垩作为生物柴油生成的固基异构催化剂：通过盒式贝肯模型优化工艺

Advances in Science and Technology Pub Date : 2024-04-23 DOI: 10.4028/p-qyxh62

A. Buasri, Kanitta Jetchamnong, Nattapat Veingdow, V. Loryuenyong

{"title":"Powder Chalk as a Solid Base Heterogeneous Catalyst for Biodiesel Generation: Process Optimization via Box-Behnken Model","authors":"A. Buasri, Kanitta Jetchamnong, Nattapat Veingdow, V. Loryuenyong","doi":"10.4028/p-qyxh62","DOIUrl":"https://doi.org/10.4028/p-qyxh62","url":null,"abstract":"In order to produce biodiesel from waste palm oil (WPO), a calcium oxide (CaO) catalyst was developed using waste powder chalk and tested as a transesterification catalyst for the biofuel process. Generating CaO catalyst required a calcination method that was carried out at 900 °C for 3 h. Further investigation was conducted using X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDX). The transesterification procedure was carried out applying response surface methodology (RSM) based on box-Behnken design (BBD). The BBD experimental design was employed, and the 3 process parameters investigated were catalyst concentration (3-5 wt.%), methanol/oil mole ratio (12-18), and reaction time (60-120 min). Experiments conducted under the optimal conditions predicted yielded over 97%, which was in excellent agreement with the expected value (a relatively small margin of error). This study demonstrates that WPO and waste chalk as low-cost feedstock are excellent sources of raw material for biodiesel production, and that a sustainable generation of biodiesel can be accomplished by optimizing process variables.","PeriodicalId":511802,"journal":{"name":"Advances in Science and Technology","volume":"52 19","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140667172","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