首页 > 最新文献

Journal of Electrical and Computer Engineering Innovations最新文献

英文 中文
Theoretical Study on CO2/SO2 Absorption Using N- Alkylethylenediaminium Protic Ionic Liquid N-烷基乙二胺质子离子液体吸附CO2/SO2的理论研究
Pub Date : 2023-04-19 DOI: 10.4028/p-7040un
Hui-Min Huang, Er Hua
The protic ionic liquids (PILs) comprising with N-2-ethylhexylethylenediaminium cation (HEtHex+) and bis (trifluoromethanesulfonate) imide anion (TFSA-) forming [HEtHex][TFSA] which has two amines in the polar group and available to absorbs acid gases such as CO2 and SO2. In order to study the CO2/SO2 absorption mechanism of [HEtHex][TFSA], the stable configurations of [HEtHex][TFSA]-nCO2 (n=1, 2, 3, 4) and [HEtHex][TFSA]-nSO2 (n=1, 2, 4, 6) are investigated using the density functional theory at the M06-2X/6-311G (d, p) level, then the interaction energy, molecular vibration frequency, second-order perturbation energy, electron density and Laplace value are calculated and analysed for the most stable configurations. The results show that N–H...O type weak or medium hydrogen bonding are mainly formed between [HEtHex][TFSA] and CO2/SO2 molecules. The hydrogen bonding interaction is stronger for [HEtHex][TFSA]-nSO2 comparing with [HEtHex][TFSA]-nCO2 and increases with increasing the number of CO2/SO2 molecules.
由n -2-乙基己基乙二胺阳离子(HEtHex+)和双(三氟甲烷磺酸盐)亚胺阴离子(TFSA-)组成的质子离子液体(PILs),形成极性基团上有两个胺的[HEtHex][TFSA],可吸收CO2和SO2等酸性气体。为了研究[HEtHex][TFSA]对CO2/SO2的吸收机理,利用密度泛函理论在M06-2X/6- 311g (d, p)水平上研究了[HEtHex][TFSA]-nCO2 (n= 1,2,3,4)和[HEtHex][TFSA]-nSO2 (n= 1,2,4,6)的稳定构型,计算并分析了最稳定构型的相互作用能、分子振动频率、二阶摄动能、电子密度和拉普拉斯值。结果表明:N-H…[HEtHex][TFSA]与CO2/SO2分子之间主要形成O型弱或中氢键。与[HEtHex][TFSA]-nSO2相比,[HEtHex][TFSA]-nCO2的氢键相互作用更强,并且随着CO2/SO2分子数的增加而增强。
{"title":"Theoretical Study on CO2/SO2 Absorption Using N- Alkylethylenediaminium Protic Ionic Liquid","authors":"Hui-Min Huang, Er Hua","doi":"10.4028/p-7040un","DOIUrl":"https://doi.org/10.4028/p-7040un","url":null,"abstract":"The protic ionic liquids (PILs) comprising with N-2-ethylhexylethylenediaminium cation (HEtHex+) and bis (trifluoromethanesulfonate) imide anion (TFSA-) forming [HEtHex][TFSA] which has two amines in the polar group and available to absorbs acid gases such as CO2 and SO2. In order to study the CO2/SO2 absorption mechanism of [HEtHex][TFSA], the stable configurations of [HEtHex][TFSA]-nCO2 (n=1, 2, 3, 4) and [HEtHex][TFSA]-nSO2 (n=1, 2, 4, 6) are investigated using the density functional theory at the M06-2X/6-311G (d, p) level, then the interaction energy, molecular vibration frequency, second-order perturbation energy, electron density and Laplace value are calculated and analysed for the most stable configurations. The results show that N–H...O type weak or medium hydrogen bonding are mainly formed between [HEtHex][TFSA] and CO2/SO2 molecules. The hydrogen bonding interaction is stronger for [HEtHex][TFSA]-nSO2 comparing with [HEtHex][TFSA]-nCO2 and increases with increasing the number of CO2/SO2 molecules.","PeriodicalId":34329,"journal":{"name":"Journal of Electrical and Computer Engineering Innovations","volume":"89 1","pages":"49 - 62"},"PeriodicalIF":0.0,"publicationDate":"2023-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73058698","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
Test-Free Simulation Method for Blowout Preventer Pipe Shearing Powered by Data 数据驱动防喷器管道剪切无试验模拟方法
Pub Date : 2023-04-19 DOI: 10.4028/p-a43x74
Yaou Wang, Chrissy Nault, M. Givens, Hai Tao Zhang, Ke Li
A Blowout Preventer (BOP) serves as a safety valve in the drilling process in the oil and gas industry. It will be closed if an influx of formation fluids occurs and threatens the rig. A Ram BOP is one type of widely used BOP. It is composed of two ram blades, which will move toward each other to shear the drilling pipe and to close the valve. To ensure the shearing process is completed on the rig, lab tests are often run to evaluate the BOP’s capability and the required shearing pressure. Over the last decade, Finite element analysis (FEA) based simulation method has been set up to predict the shearing process. The simulation method still requires pipe damage parameters and requires lab test. This paper presents a test-free simulation method enabled by analyzing the ram BOP pipe shearing data, which significantly reduces the lead time and test costs.
防喷器(BOP)在石油和天然气行业的钻井过程中起到安全阀的作用。当地层流体涌入并威胁到钻井平台时,将关闭密封装置。冲压防喷器是一种广泛使用的防喷器。它由两个闸板刀片组成,两个闸板刀片相互移动,剪切钻杆并关闭阀门。为了确保在钻井平台上完成剪切过程,通常会进行实验室测试,以评估防喷器的性能和所需的剪切压力。在过去的十年里,基于有限元分析(FEA)的模拟方法已经建立起来,以预测剪切过程。模拟方法仍然需要管道损伤参数和实验室试验。本文通过分析闸板防喷器管柱剪切数据,提出了一种无需测试的模拟方法,大大缩短了交付周期和测试成本。
{"title":"Test-Free Simulation Method for Blowout Preventer Pipe Shearing Powered by Data","authors":"Yaou Wang, Chrissy Nault, M. Givens, Hai Tao Zhang, Ke Li","doi":"10.4028/p-a43x74","DOIUrl":"https://doi.org/10.4028/p-a43x74","url":null,"abstract":"A Blowout Preventer (BOP) serves as a safety valve in the drilling process in the oil and gas industry. It will be closed if an influx of formation fluids occurs and threatens the rig. A Ram BOP is one type of widely used BOP. It is composed of two ram blades, which will move toward each other to shear the drilling pipe and to close the valve. To ensure the shearing process is completed on the rig, lab tests are often run to evaluate the BOP’s capability and the required shearing pressure. Over the last decade, Finite element analysis (FEA) based simulation method has been set up to predict the shearing process. The simulation method still requires pipe damage parameters and requires lab test. This paper presents a test-free simulation method enabled by analyzing the ram BOP pipe shearing data, which significantly reduces the lead time and test costs.","PeriodicalId":34329,"journal":{"name":"Journal of Electrical and Computer Engineering Innovations","volume":"22 1 1","pages":"15 - 20"},"PeriodicalIF":0.0,"publicationDate":"2023-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85688610","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
IoT-Based Real Time pH Monitoring of University of Mindanao’s Chemical Laboratory Wastewater 基于物联网的棉兰老大学化学实验室废水pH值实时监测
Pub Date : 2023-04-19 DOI: 10.4028/p-zz302h
Egi Joe Fran Morales, Chosel P. Lawagon
Wastewater is a by-product of industrial and commercial facilities. If not treated, it could cause environmental and health problems. The proposed IoT-Based Real-Time pH Monitoring of wastewater can regulate the disposed waste through web browsers. The device has undergone several trials with wastewater from the chemical laboratory at different pH levels. It gave the signal to the solenoid motor to position either close when the pH level is more significant than pH 7.5 and less than pH 6.5 or open when the pH level is pH 6.5 to pH 7.5. The output's accuracy was measured using buffer solutions at different temperatures. It showed that the value of the pH level varied in temperature with significantly small changes. The system monitoring in the web browser captured the data every minute and saved it in a database for data comparison purposes. The device conformed to the Department of Environmental Natural Resources - Environmental Management Bureau (DENR-EMB) in the Philippines' standard permissible pH level (pH 6.0 to pH 9.0). Using an Arduino NANO microcontroller that served as a central processing unit and a Node MCU to connect the system to the internet, the equivalent output of an industrial pH meter was obtained, allowing the user to monitor the system at any time using a web browser.
废水是工业和商业设施的副产品。如果不加以处理,可能会造成环境和健康问题。提出了一种基于物联网的废水pH实时监测方法,可以通过浏览器对处理后的废水进行调节。该装置已经在化学实验室不同pH值的废水中进行了多次试验。当pH值大于7.5且小于6.5时,它向电磁电机发出信号,使其关闭;当pH值为6.5至7.5时,它打开。用不同温度的缓冲液测量输出的精度。结果表明,pH值随温度的变化而变化,但变化幅度很小。web浏览器中的系统监控每分钟捕获一次数据,并将其保存在数据库中,以便进行数据比较。该设备符合菲律宾环境自然资源部-环境管理局(DENR-EMB)的标准允许pH值(pH 6.0至pH 9.0)。使用Arduino NANO微控制器作为中央处理单元和Node MCU将系统连接到互联网,获得相当于工业pH计的输出,允许用户随时使用web浏览器监控系统。
{"title":"IoT-Based Real Time pH Monitoring of University of Mindanao’s Chemical Laboratory Wastewater","authors":"Egi Joe Fran Morales, Chosel P. Lawagon","doi":"10.4028/p-zz302h","DOIUrl":"https://doi.org/10.4028/p-zz302h","url":null,"abstract":"Wastewater is a by-product of industrial and commercial facilities. If not treated, it could cause environmental and health problems. The proposed IoT-Based Real-Time pH Monitoring of wastewater can regulate the disposed waste through web browsers. The device has undergone several trials with wastewater from the chemical laboratory at different pH levels. It gave the signal to the solenoid motor to position either close when the pH level is more significant than pH 7.5 and less than pH 6.5 or open when the pH level is pH 6.5 to pH 7.5. The output's accuracy was measured using buffer solutions at different temperatures. It showed that the value of the pH level varied in temperature with significantly small changes. The system monitoring in the web browser captured the data every minute and saved it in a database for data comparison purposes. The device conformed to the Department of Environmental Natural Resources - Environmental Management Bureau (DENR-EMB) in the Philippines' standard permissible pH level (pH 6.0 to pH 9.0). Using an Arduino NANO microcontroller that served as a central processing unit and a Node MCU to connect the system to the internet, the equivalent output of an industrial pH meter was obtained, allowing the user to monitor the system at any time using a web browser.","PeriodicalId":34329,"journal":{"name":"Journal of Electrical and Computer Engineering Innovations","volume":"18 1","pages":"29 - 37"},"PeriodicalIF":0.0,"publicationDate":"2023-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73891351","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
Strengthening of a Damaged Concrete Structure - Case Study of an Eleven Stories Building in Dar es Salaam 受损混凝土结构的加固——以达累斯萨拉姆11层建筑为例
Pub Date : 2023-04-19 DOI: 10.4028/p-2b38z4
J. Makunza
Concrete structures may become obsolete and be unfit for use to the extent that they need special attendance of repair or strengthening so as to revive them. The weakness in the buildings may be caused by natural disasters like earthquake, floods, changes of use of the buildings in which higher loads more than the design loads, e.g. vertical extension loads, are applied. When the structures are defective they need to be strengthened in order to restore their original structural integrity. Sometimes, the defect or deterioration needs to be scientifically analysed first in order to know the root cause of the problem and apply the right corrective measures. A case study on an eleven stories damaged building in is presented, starting with an investigation on causes of sudden crushing of one column and a strengthening method which embraced a number of techniques such as Land Surveying and non-destructive tests in assessing the building structural integrity. The crushed column and other columns is the ground floor were all strengthened using jacketing method and provision of additional columns at the crushed column. Keywords: Columns, crushing, non-destructive tests, concrete quality, deflection, plumb, jacketing, strengthening
混凝土结构可能会过时,不适合使用,需要特别维修或加强,以使其恢复活力。建筑物的弱点可能是由地震、洪水等自然灾害造成的,也可能是由于建筑物的使用方式发生变化,其中施加的荷载高于设计荷载,例如竖向延伸荷载。当结构有缺陷时,需要对其进行加固,以恢复其原有的结构完整性。有时,为了了解问题的根本原因并采取正确的纠正措施,需要首先对缺陷或劣化进行科学分析。本文以一幢11层楼高的建筑物为例,首先分析了一根柱子突然破碎的原因,并提出了一种采用土地测量和无损检测等多种技术来评估建筑物结构完整性的加固方法。破碎柱及底层其他柱均采用夹套法加固,破碎柱处加设附加柱。关键词:柱,破碎,无损检测,混凝土质量,挠度,铅锤,护套,加固
{"title":"Strengthening of a Damaged Concrete Structure - Case Study of an Eleven Stories Building in Dar es Salaam","authors":"J. Makunza","doi":"10.4028/p-2b38z4","DOIUrl":"https://doi.org/10.4028/p-2b38z4","url":null,"abstract":"Concrete structures may become obsolete and be unfit for use to the extent that they need special attendance of repair or strengthening so as to revive them. The weakness in the buildings may be caused by natural disasters like earthquake, floods, changes of use of the buildings in which higher loads more than the design loads, e.g. vertical extension loads, are applied. When the structures are defective they need to be strengthened in order to restore their original structural integrity. Sometimes, the defect or deterioration needs to be scientifically analysed first in order to know the root cause of the problem and apply the right corrective measures. A case study on an eleven stories damaged building in is presented, starting with an investigation on causes of sudden crushing of one column and a strengthening method which embraced a number of techniques such as Land Surveying and non-destructive tests in assessing the building structural integrity. The crushed column and other columns is the ground floor were all strengthened using jacketing method and provision of additional columns at the crushed column. Keywords: Columns, crushing, non-destructive tests, concrete quality, deflection, plumb, jacketing, strengthening","PeriodicalId":34329,"journal":{"name":"Journal of Electrical and Computer Engineering Innovations","volume":"229 1","pages":"1 - 13"},"PeriodicalIF":0.0,"publicationDate":"2023-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90805739","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
Finite Element Analysis of Damage of Cylindrical Roller Bearing of Main Shaft of Shot Blasting Machine 抛丸机主轴圆柱滚子轴承损伤的有限元分析
Pub Date : 2023-02-15 DOI: 10.4028/p-391e5g
Yi Jia Zhang, Yongzhi Pan, Zhengshuai Jiang, X. Fu, Tianyi Zhang
The main shaft of shot blasting machine mainly uses cylindrical roller bearing as the supporting part. The influence of stress, strain and temperature on bearing damage was studied by thermal structural coupling analysis of the bearing through finite element simulation. The causes and main damage forms of bearing surface were verified by super depth of field observation and finite element analysis. It is found that there exists pyramidal strain in the contact area between inner and outer raceway and roller, and its distribution form is continuous point distribution. The stress concentration is mainly distributed in the contact area between the roller face and the retaining edge, and the roller temperature is more concentrated in the area near the end face. The maximum length and depth of spalling pit on racetrack surface were 572.2μm and 14.15μm respectively. The maximum width and depth of the scratches on the roller surface are 386.7μm and 10.7μm, and the damage degree of the roller surface is not uniform. The thermo-structural coupling analysis is used to simulate the running state of bearings, which is of guiding significance to analyze the failure forms of bearings and improve the service life of bearings.
抛丸机主轴主要采用圆柱滚子轴承作为支承部件。通过有限元模拟对轴承进行热结构耦合分析,研究了应力、应变和温度对轴承损伤的影响。通过超深现场观测和有限元分析,验证了轴承表面损伤的原因和主要形式。发现内外滚道与滚子接触区域存在锥体应变,其分布形式为连续点分布。应力集中主要分布在辊面与挡边接触区域,辊温更集中在端面附近区域。跑道表面剥落坑的最大长度为572.2μm,深度为14.15μm。轧辊表面划痕的最大宽度和深度分别为386.7μm和10.7μm,轧辊表面损伤程度不均匀。采用热结构耦合分析模拟轴承的运行状态,对分析轴承的失效形式,提高轴承的使用寿命具有指导意义。
{"title":"Finite Element Analysis of Damage of Cylindrical Roller Bearing of Main Shaft of Shot Blasting Machine","authors":"Yi Jia Zhang, Yongzhi Pan, Zhengshuai Jiang, X. Fu, Tianyi Zhang","doi":"10.4028/p-391e5g","DOIUrl":"https://doi.org/10.4028/p-391e5g","url":null,"abstract":"The main shaft of shot blasting machine mainly uses cylindrical roller bearing as the supporting part. The influence of stress, strain and temperature on bearing damage was studied by thermal structural coupling analysis of the bearing through finite element simulation. The causes and main damage forms of bearing surface were verified by super depth of field observation and finite element analysis. It is found that there exists pyramidal strain in the contact area between inner and outer raceway and roller, and its distribution form is continuous point distribution. The stress concentration is mainly distributed in the contact area between the roller face and the retaining edge, and the roller temperature is more concentrated in the area near the end face. The maximum length and depth of spalling pit on racetrack surface were 572.2μm and 14.15μm respectively. The maximum width and depth of the scratches on the roller surface are 386.7μm and 10.7μm, and the damage degree of the roller surface is not uniform. The thermo-structural coupling analysis is used to simulate the running state of bearings, which is of guiding significance to analyze the failure forms of bearings and improve the service life of bearings.","PeriodicalId":34329,"journal":{"name":"Journal of Electrical and Computer Engineering Innovations","volume":"27 1","pages":"1 - 8"},"PeriodicalIF":0.0,"publicationDate":"2023-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86117839","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
Tensile Strength of 3D Printing Scaffold Design Truncated Hexahedron for Tuberculosis Drug Delivery 三维打印支架抗拉强度设计截断六面体结核药物输送
Pub Date : 2023-02-15 DOI: 10.4028/p-4wu1vu
Eka Yuliatin, D. Hikmawati, Aminatun, A. S. Budiatin, P. Widiyanti, Frazna Parastuti
Mechanical properties are important characteristics of scaffolds as biomaterials implant in tissue engineering. This study focused on the analysis of the tensile strength of the 3D printing scaffold with a geometric design of the truncated hexahedron unit with pore size variation and combinFive variations of pore size of the scaffold (600, 800, 1,000, 1,200, and 1,400 µm) were fabricated from Polylactide acid (PLA) filament using the Fused Deposition Modelling (FDM) method through an ordinary commercial 3D printer. The IBS paste was synthesized from hydroxyapatite (HA), gelatin, hydroxypropyl methylcellulose (HPMC), and streptomycin. The characterization performed in this study were the pore size test with a digital microscope, tensile strength, elongation test, porosity, and contact angle. The 3D printed scaffold formed micropores after injected with IBS paste from a range of 130-230 µm. The tensile test results showed that the tensile strength of the 3D printing scaffold increased after being injected with IBS paste. In addition, the elongation test also shows a positive trend with increasing values of elongation after injection of IBS paste. The contact angle test results indicated that the scaffold was hydrophilic. From those characterizations, it could be concluded that 3D printing scaffold meet the criteria of scaffold for bone tissue engineering and drug carrier for tuberculosis.
力学性能是支架作为组织工程生物植入材料的重要特性。本研究通过普通商用3D打印机,采用熔融沉积建模(FDM)方法,以聚乳酸(PLA)长丝为原料,制备了孔径分别为600、800、1000、1200和1400µm的五种孔径变化的3D打印支架,重点分析了截尾六面体单元几何设计与孔径变化组合的抗拉强度。以羟基磷灰石(HA)、明胶、羟丙基甲基纤维素(HPMC)和链霉素为原料合成IBS浆料。在本研究中进行的表征是用数码显微镜进行孔径测试,拉伸强度,伸长率测试,孔隙率和接触角。3D打印支架注入130 ~ 230µm范围内的IBS浆料后形成微孔。拉伸试验结果表明,注入IBS浆料后,3D打印支架的抗拉强度有所提高。此外,随着IBS膏体注入后延伸率的增加,延伸率试验也呈现出正趋势。接触角测试结果表明,支架具有亲水性。由此可见,3D打印支架符合骨组织工程支架和结核病药物载体的标准。
{"title":"Tensile Strength of 3D Printing Scaffold Design Truncated Hexahedron for Tuberculosis Drug Delivery","authors":"Eka Yuliatin, D. Hikmawati, Aminatun, A. S. Budiatin, P. Widiyanti, Frazna Parastuti","doi":"10.4028/p-4wu1vu","DOIUrl":"https://doi.org/10.4028/p-4wu1vu","url":null,"abstract":"Mechanical properties are important characteristics of scaffolds as biomaterials implant in tissue engineering. This study focused on the analysis of the tensile strength of the 3D printing scaffold with a geometric design of the truncated hexahedron unit with pore size variation and combinFive variations of pore size of the scaffold (600, 800, 1,000, 1,200, and 1,400 µm) were fabricated from Polylactide acid (PLA) filament using the Fused Deposition Modelling (FDM) method through an ordinary commercial 3D printer. The IBS paste was synthesized from hydroxyapatite (HA), gelatin, hydroxypropyl methylcellulose (HPMC), and streptomycin. The characterization performed in this study were the pore size test with a digital microscope, tensile strength, elongation test, porosity, and contact angle. The 3D printed scaffold formed micropores after injected with IBS paste from a range of 130-230 µm. The tensile test results showed that the tensile strength of the 3D printing scaffold increased after being injected with IBS paste. In addition, the elongation test also shows a positive trend with increasing values of elongation after injection of IBS paste. The contact angle test results indicated that the scaffold was hydrophilic. From those characterizations, it could be concluded that 3D printing scaffold meet the criteria of scaffold for bone tissue engineering and drug carrier for tuberculosis.","PeriodicalId":34329,"journal":{"name":"Journal of Electrical and Computer Engineering Innovations","volume":"23 1","pages":"31 - 36"},"PeriodicalIF":0.0,"publicationDate":"2023-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77870339","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 Novel Ensemble of Support Vector Machines for Improving Medical Data Classification 一种改进医疗数据分类的新型支持向量机集成
Pub Date : 2023-02-15 DOI: 10.4028/p-h0cef4
Phuoc-Hai Huynh, Van Hoa Nguyen
In recent years, the increasing volume and availability of healthcare and biomedical data are opening up new opportunities for computational methods to enhance healthcare in many hospitals. Medical data classification is regarded as the challenging task to develop intelligent medical decision support systems in hospitals. In this paper, the ensemble approaches based on support vector machines are proposed for classifying medical data. This research’s key contribution is that the ensemble multiple support vector machines use the function kernel in the style of gradient boosting and bagging to produce a more accurate fusion model than the mono-modality models. Extensive experiments have been conducted on forty benchmark medical datasets from the University of California at Irvine machine learning repository. The classification results show that there is a statistically significant difference (p-values < 0.05) between the proposed approaches and the best classification models. In addition, the empirical analysis of forty medical datasets indicated that our models can predict diseases with an accuracy rate of 82.82 and 81.76 percent without feature selection in the preprocessing data stage.
近年来,医疗保健和生物医学数据的数量和可用性不断增加,为计算方法在许多医院中增强医疗保健提供了新的机会。医疗数据分类是医院智能医疗决策支持系统开发的难点之一。本文提出了基于支持向量机的集成方法用于医学数据分类。本研究的关键贡献在于集成多支持向量机使用梯度提升和bagging方式的函数核来产生比单模态模型更精确的融合模型。在加州大学欧文分校机器学习存储库的40个基准医疗数据集上进行了广泛的实验。分类结果表明,本文提出的方法与最佳分类模型之间存在显著的统计学差异(p值< 0.05)。此外,对40个医疗数据集的实证分析表明,在预处理数据阶段不进行特征选择的情况下,我们的模型预测疾病的准确率分别为82.82%和81.76%。
{"title":"A Novel Ensemble of Support Vector Machines for Improving Medical Data Classification","authors":"Phuoc-Hai Huynh, Van Hoa Nguyen","doi":"10.4028/p-h0cef4","DOIUrl":"https://doi.org/10.4028/p-h0cef4","url":null,"abstract":"In recent years, the increasing volume and availability of healthcare and biomedical data are opening up new opportunities for computational methods to enhance healthcare in many hospitals. Medical data classification is regarded as the challenging task to develop intelligent medical decision support systems in hospitals. In this paper, the ensemble approaches based on support vector machines are proposed for classifying medical data. This research’s key contribution is that the ensemble multiple support vector machines use the function kernel in the style of gradient boosting and bagging to produce a more accurate fusion model than the mono-modality models. Extensive experiments have been conducted on forty benchmark medical datasets from the University of California at Irvine machine learning repository. The classification results show that there is a statistically significant difference (p-values < 0.05) between the proposed approaches and the best classification models. In addition, the empirical analysis of forty medical datasets indicated that our models can predict diseases with an accuracy rate of 82.82 and 81.76 percent without feature selection in the preprocessing data stage.","PeriodicalId":34329,"journal":{"name":"Journal of Electrical and Computer Engineering Innovations","volume":"55 1","pages":"47 - 66"},"PeriodicalIF":0.0,"publicationDate":"2023-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84468061","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
Artificial Intelligence Predictions Effect of Loading Rate, Crack Width and Crack Length Ratio on Mode I Fracture Toughness of PMMA 加载速率、裂纹宽度和裂纹长度比对PMMA I型断裂韧性的人工智能预测
Pub Date : 2023-02-15 DOI: 10.4028/p-0l1ejd
Attasit Wiangkham, Prasert Aengchuan, Atthaphon Ariyarit
Present, artificial intelligence methods play a huge role in solving complex engineering problems such as the fracture toughness of materials, which is one of the parameters to be considered for engineering design. Fracture toughness tests can be prepared materials and test configured in a variety of ways, resulting in different fracture toughness depending on the preparation method. In this study, fracture toughness of PMMA under the effect of loading rate is one of the testing configs that can be adjusted according to the actual load characteristics of the material and the crack geometry (crack width and crack length ratio) according to crack preparation to test specimens and the effect of these factors was predicted with generalized regression neural network (GRNN) and Gaussian processes regression (GPR) models which are one of the artificial intelligence models, compared to traditional fracture toughness predictions. The results showed that artificial intelligence prediction was able to more accurately predict the effect of the factors studied on the fracture toughness of PMMA compared to the traditional fracture toughness prediction.
目前,人工智能方法在解决材料断裂韧性等复杂工程问题中发挥着巨大的作用,断裂韧性是工程设计中需要考虑的参数之一。断裂韧性试验可以制备材料并以多种方式进行试验配置,从而根据制备方法的不同产生不同的断裂韧性。在本研究中,加载速率影响下PMMA的断裂韧性是可根据材料的实际载荷特性和根据试件准备的裂纹几何形状(裂纹宽度和裂纹长度比)进行调整的测试配置之一,并采用人工智能模型之一的广义回归神经网络(GRNN)和高斯过程回归(GPR)模型预测这些因素的影响。与传统断裂韧性预测相比。结果表明,与传统的断裂韧性预测相比,人工智能预测能够更准确地预测所研究因素对PMMA断裂韧性的影响。
{"title":"Artificial Intelligence Predictions Effect of Loading Rate, Crack Width and Crack Length Ratio on Mode I Fracture Toughness of PMMA","authors":"Attasit Wiangkham, Prasert Aengchuan, Atthaphon Ariyarit","doi":"10.4028/p-0l1ejd","DOIUrl":"https://doi.org/10.4028/p-0l1ejd","url":null,"abstract":"Present, artificial intelligence methods play a huge role in solving complex engineering problems such as the fracture toughness of materials, which is one of the parameters to be considered for engineering design. Fracture toughness tests can be prepared materials and test configured in a variety of ways, resulting in different fracture toughness depending on the preparation method. In this study, fracture toughness of PMMA under the effect of loading rate is one of the testing configs that can be adjusted according to the actual load characteristics of the material and the crack geometry (crack width and crack length ratio) according to crack preparation to test specimens and the effect of these factors was predicted with generalized regression neural network (GRNN) and Gaussian processes regression (GPR) models which are one of the artificial intelligence models, compared to traditional fracture toughness predictions. The results showed that artificial intelligence prediction was able to more accurately predict the effect of the factors studied on the fracture toughness of PMMA compared to the traditional fracture toughness prediction.","PeriodicalId":34329,"journal":{"name":"Journal of Electrical and Computer Engineering Innovations","volume":"33 1","pages":"15 - 20"},"PeriodicalIF":0.0,"publicationDate":"2023-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82506237","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 Novel Epitope Dataset: Performance of the MCL-Based Algorithms to Generate Dataset for Graph Learning Model 一种新的表位数据集:基于mcl的图学习模型数据集生成算法的性能
Pub Date : 2023-02-15 DOI: 10.4028/p-8a27xd
Binti Solihah, Aina Musdholifah, A. Azhari
Naturally, the epitope dataset can be presented as a graph. Dataset preparation in the previous methods is part of model development. There are many graph-based classification and regression methods. Still, it is difficult to identify their performance on the conformational epitope prediction model because datasets in a suitable format are unavailable. This research aims to build a dataset in a suitable format to evaluate kernel graph and graph convolution network. This dataset, which results from graph clustering on graph antigens, can be used to identify the performance of many graph neural network-based algorithms for conformational epitope prediction. The Ag-Ab complexes that meet the criteria for forming a conformational epitope prediction dataset from previous studies were downloaded from the Protein Data Bank. Raw datasets in the form of specific exposed antigen chain residues are labeled as epitope or non-epitope based on their proximity to the paratope. The engineering features in the raw dataset are derived from the structure of the antigen-antibody complex and the propensity score. Aggregating atomic-level interactions into residual levels create an initial graph of the antigen chain. The MCL, MLR-MCL, and PS-MCL are graph clustering algorithms to obtain labeled sub-clusters from the initial graph. A balance factor parameter is set to several values to identify the optimal dataset formation based on minimal fragmentation. The output of the MCL algorithm is used as a baseline. As a result of the fragmentation analysis that occurs, the MLR-MCL algorithm gives the best model performance at a balance factor equal to 2. PS-MCL gives the best performance at a value of 0.9. Based on the minimum fragmentation, the MLR-MCL algorithm provides the best model performance compared to MCL and PS-MCL. The dataset in a format according to benchmarking dataset can be used to identify the characteristics of antigen subgraphs formed from the graph clustering process and to explore the performance of graph-based learning conformational epitope prediction models such as graph convolution networks.
当然,表位数据集可以用图形表示。前面方法中的数据集准备是模型开发的一部分。有许多基于图的分类和回归方法。然而,由于没有合适格式的数据集,很难确定它们在构象表位预测模型上的表现。本研究旨在建立一个合适格式的数据集来评估核图和图卷积网络。该数据集是由图抗原上的图聚类产生的,可用于识别许多基于图神经网络的构象表位预测算法的性能。从先前的研究中下载符合形成构象表位预测数据集标准的Ag-Ab复合物。以特定暴露抗原链残基形式的原始数据集根据其与旁位的接近程度标记为表位或非表位。原始数据集中的工程特征来源于抗原-抗体复合物的结构和倾向得分。将原子水平的相互作用聚合到剩余水平,可以创建抗原链的初始图。MCL、MLR-MCL和PS-MCL是从初始图中获得标记子聚类的图聚类算法。将平衡因子参数设置为多个值,以确定基于最小碎片的最佳数据集形成。MCL算法的输出用作基线。经过碎片化分析,在平衡因子为2时,MLR-MCL算法的模型性能最佳。PS-MCL在值为0.9时表现最佳。基于最小碎片,MLR-MCL算法比MCL和PS-MCL提供了最好的模型性能。根据基准数据集格式的数据集可用于识别由图聚类过程形成的抗原子图的特征,并探索图卷积网络等基于图的学习构象表位预测模型的性能。
{"title":"A Novel Epitope Dataset: Performance of the MCL-Based Algorithms to Generate Dataset for Graph Learning Model","authors":"Binti Solihah, Aina Musdholifah, A. Azhari","doi":"10.4028/p-8a27xd","DOIUrl":"https://doi.org/10.4028/p-8a27xd","url":null,"abstract":"Naturally, the epitope dataset can be presented as a graph. Dataset preparation in the previous methods is part of model development. There are many graph-based classification and regression methods. Still, it is difficult to identify their performance on the conformational epitope prediction model because datasets in a suitable format are unavailable. This research aims to build a dataset in a suitable format to evaluate kernel graph and graph convolution network. This dataset, which results from graph clustering on graph antigens, can be used to identify the performance of many graph neural network-based algorithms for conformational epitope prediction. The Ag-Ab complexes that meet the criteria for forming a conformational epitope prediction dataset from previous studies were downloaded from the Protein Data Bank. Raw datasets in the form of specific exposed antigen chain residues are labeled as epitope or non-epitope based on their proximity to the paratope. The engineering features in the raw dataset are derived from the structure of the antigen-antibody complex and the propensity score. Aggregating atomic-level interactions into residual levels create an initial graph of the antigen chain. The MCL, MLR-MCL, and PS-MCL are graph clustering algorithms to obtain labeled sub-clusters from the initial graph. A balance factor parameter is set to several values to identify the optimal dataset formation based on minimal fragmentation. The output of the MCL algorithm is used as a baseline. As a result of the fragmentation analysis that occurs, the MLR-MCL algorithm gives the best model performance at a balance factor equal to 2. PS-MCL gives the best performance at a value of 0.9. Based on the minimum fragmentation, the MLR-MCL algorithm provides the best model performance compared to MCL and PS-MCL. The dataset in a format according to benchmarking dataset can be used to identify the characteristics of antigen subgraphs formed from the graph clustering process and to explore the performance of graph-based learning conformational epitope prediction models such as graph convolution networks.","PeriodicalId":34329,"journal":{"name":"Journal of Electrical and Computer Engineering Innovations","volume":"64 1","pages":"37 - 46"},"PeriodicalIF":0.0,"publicationDate":"2023-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80126705","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
Vibrational Analysis of Mini - Unmanned Aerial Vehicles due to Gun Recoil 火炮后坐力作用下小型无人机的振动分析
Pub Date : 2023-02-15 DOI: 10.4028/p-23x9u4
N. Nelson, P. Siva
In 21st century, battlefields are being occupied by Artificial Intelligence (AI) controlled machines and one of its kind is mini-unmanned aerial vehicles. Upon arming the mini-UAVs, the load distribution and characterizing the vibrational behavior are important for its safe operation. Usually, the gun recoil force gets transferred to the platform of the mini-UAV, leading to instability or failure of the platform along with the gun. Mini-UAVs being too small don’t have the space to set the conventional recoil reduction mechanism. So, it is important to design a mechanism or alternative propellant for achieving the equivalent explosive force instead of TNT. Also, the influence of explosion on the vibration characteristics of the mini-UAV is studied. The high-pressure gas is found as the best alternative to TNT material, for reducing the deflection produced. This work primarily concentrates on determining the deflection and frequency induced in mini-UAVs. By using a pressure canister arrangement, the vibration characteristics under recoil can be improved.
在21世纪,人工智能(AI)控制的机器正在占领战场,其中一种是微型无人机。小型无人机武装后,载荷分布和振动特性的研究对其安全运行至关重要。通常情况下,火炮后坐力会传递到微型无人机的平台上,导致平台随火炮不稳定或失效。小型无人机太小,没有空间设置传统的后坐力减少机构。因此,设计一种能代替TNT产生同等爆炸力的机构或替代推进剂是十分重要的。此外,还研究了爆炸对小型无人机振动特性的影响。发现高压气体是TNT材料的最佳替代品,可以减少产生的偏转。这项工作主要集中在确定小型无人机的偏转和频率上。采用压力筒布置,可以改善后坐力作用下的振动特性。
{"title":"Vibrational Analysis of Mini - Unmanned Aerial Vehicles due to Gun Recoil","authors":"N. Nelson, P. Siva","doi":"10.4028/p-23x9u4","DOIUrl":"https://doi.org/10.4028/p-23x9u4","url":null,"abstract":"In 21st century, battlefields are being occupied by Artificial Intelligence (AI) controlled machines and one of its kind is mini-unmanned aerial vehicles. Upon arming the mini-UAVs, the load distribution and characterizing the vibrational behavior are important for its safe operation. Usually, the gun recoil force gets transferred to the platform of the mini-UAV, leading to instability or failure of the platform along with the gun. Mini-UAVs being too small don’t have the space to set the conventional recoil reduction mechanism. So, it is important to design a mechanism or alternative propellant for achieving the equivalent explosive force instead of TNT. Also, the influence of explosion on the vibration characteristics of the mini-UAV is studied. The high-pressure gas is found as the best alternative to TNT material, for reducing the deflection produced. This work primarily concentrates on determining the deflection and frequency induced in mini-UAVs. By using a pressure canister arrangement, the vibration characteristics under recoil can be improved.","PeriodicalId":34329,"journal":{"name":"Journal of Electrical and Computer Engineering Innovations","volume":"30 1","pages":"9 - 14"},"PeriodicalIF":0.0,"publicationDate":"2023-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73572317","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
期刊
Journal of Electrical and Computer Engineering Innovations
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1