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Prediction of bed load sediments using different artificial neural network models
Reza ASHEGHI, Seyed Abbas HOSSEINI
《结构与土木工程前沿(英文)》 2020年 第14卷 第2期 页码 374-386 doi: 10.1007/s11709-019-0600-0
关键词: bed load prediction artificial neural network modeling empirical equations
A review on membrane distillation in process engineering: design and exergy equations, materials and
《化学科学与工程前沿(英文)》 2022年 第16卷 第5期 页码 592-613 doi: 10.1007/s11705-021-2105-3
关键词: membrane distillation recent developments heat and mass transfer wetting membrane material
Prediction of the theoretical and semi-empirical model of ambient temperature
Foued CHABANE,Noureddine MOUMMI,Abdelhafid BRIMA,Abdelhafid MOUMMI
《能源前沿(英文)》 2016年 第10卷 第3期 页码 268-276 doi: 10.1007/s11708-016-0413-y
关键词: ambient temperature environment correlation theoretical model semi-empirical
Detection of schedule delay risk of empirical construction projects
Tsegay GEBREHIWET, Hanbin LUO
《工程管理前沿(英文)》 2018年 第5卷 第2期 页码 251-267 doi: 10.15302/J-FEM-2018086
关键词: fuzzy analytic hierarchy process comprehensive evaluation construction project detection of delay risk relative important index
Parametric equations for notch stress concentration factors of rib–deck welds under bending loading
《结构与土木工程前沿(英文)》 2021年 第15卷 第3期 页码 595-608 doi: 10.1007/s11709-021-0720-1
关键词: notch stress concentration factor rib–deck weld parametric analysis regression analysis parametric equation
Solving nonlinear differential equations of Vanderpol, Rayleigh and Duffing by AGM
null
《机械工程前沿(英文)》 2014年 第9卷 第2期 页码 177-190 doi: 10.1007/s11465-014-0288-8
In the present paper, three complicated nonlinear differential equations in the field of vibration, which are Vanderpol, Rayleigh and Duffing equations, have been analyzed and solved completely by Algebraic Method (AGM). Investigating this kind of equations is a very hard task to do and the obtained solution is not accurate and reliable. This issue will be emerged after comparing the achieved solutions by numerical method (Runge-Kutte 4th). Based on the comparisons which have been made between the gained solutions by AGM and numerical method, it is possible to indicate that AGM can be successfully applied for various differential equations particularly for difficult ones. The results reveal that this method is not only very effective and simple, but also reliable, and can be applied for other complicated nonlinear problems.
关键词: Algebraic Method (AGM) Angular Frequency Vanderpol Rayleigh Duffing
Jiasheng LI, Xingzhan LI, Wei WEI, Pinkuan LIU
《机械工程前沿(英文)》 2020年 第15卷 第2期 页码 227-239 doi: 10.1007/s11465-020-0587-1
关键词: bidimensional empirical mode decomposition spatial spectrum analysis boundary effect vibration identification surface topography
Changes in public trust in physicians: empirical evidence from China
Dahai Zhao, Zhiruo Zhang
《医学前沿(英文)》 2019年 第13卷 第4期 页码 504-510 doi: 10.1007/s11684-018-0666-4
关键词: trust in physicians public trust physician-patient relationship health system performance
《工程管理前沿(英文)》 2023年 第10卷 第2期 页码 285-299 doi: 10.1007/s42524-022-0197-1
关键词: spatiotemporal differentiation industrial agglomeration low-carbon economy construction machinery industry empirical study
An Empirical Study on the Generation Mechanism of NIMBY Conflicts of Construction Projects
Guang-she Jia,Song-yu Yan,Wen-jun Wang,Ralf Müller,Chen Lin
《工程管理前沿(英文)》 2016年 第3卷 第1期 页码 39-49 doi: 10.15302/J-FEM-2016015
关键词: NIMBY conflicts social conflict construction projects mechanism empirical study
An Empirical Study on the Internal Control Efficiency of Listed Engineering Companies
Zhi-wen Wang,Jing Tong
《工程管理前沿(英文)》 2015年 第2卷 第2期 页码 159-164 doi: 10.15302/J-FEM-2015026
关键词: internal control efficiency board of directors independent directors audit committee
Empirical models and design codes in prediction of modulus of elasticity of concrete
Behnam VAKHSHOURI, Shami NEJADI
《结构与土木工程前沿(英文)》 2019年 第13卷 第1期 页码 38-48 doi: 10.1007/s11709-018-0479-1
关键词: modulus of elasticity normal strength normal weight concrete empirical models design codes compressive strength density
黄志洵
《中国工程科学》 2005年 第7卷 第3期 页码 6-12
2004年6月,位于西非Oklo的美国Los Alamos实验室的核工业反应堆对实验数据做再分析后得出结论说,近20亿年内精细结构常数减小了4.5×10-8。常数不常,意味着光速有很小的变化。这是最新的与狭义相对论不符的实验报告。另一方面,光子如有质量,Maxwell方程组将被Proca方程组所取代,而磁矢位(势)A将成为可观测量。而过去和现在都有许多方法测量光子的质量。
文章的主要目的是在Proca理论框架内研究电磁波波速,发现即使在自由空间(真空)条件下也会出现超光速传播;同时又对波导与Proca波的截止现象做了比较,给出了相应的结果。
关键词: 狭义相对论 Maxwell方程组 Proca方程组 电磁波波速 光子的静止质量
ANN-based empirical modelling of pile behaviour under static compressive loading
Abdussamad ISMAIL
《结构与土木工程前沿(英文)》 2018年 第12卷 第4期 页码 594-608 doi: 10.1007/s11709-017-0446-2
关键词: piles in compression load-deformation behaviour product-unit neural network
Zhao-Hui LU, Hong-Jun WANG, Fulin QU, Yan-Gang ZHAO, Peiran LI, Wengui LI
《结构与土木工程前沿(英文)》 2020年 第14卷 第4期 页码 888-906 doi: 10.1007/s11709-020-0637-0
关键词: CRC beams flexural capacity steel corrosion database empirical models
标题 作者 时间 类型 操作
Prediction of bed load sediments using different artificial neural network models
Reza ASHEGHI, Seyed Abbas HOSSEINI
期刊论文
A review on membrane distillation in process engineering: design and exergy equations, materials and
期刊论文
Prediction of the theoretical and semi-empirical model of ambient temperature
Foued CHABANE,Noureddine MOUMMI,Abdelhafid BRIMA,Abdelhafid MOUMMI
期刊论文
Detection of schedule delay risk of empirical construction projects
Tsegay GEBREHIWET, Hanbin LUO
期刊论文
Parametric equations for notch stress concentration factors of rib–deck welds under bending loading
期刊论文
Relative vibration identification of cutter and workpiece based on improved bidimensional empirical mode
Jiasheng LI, Xingzhan LI, Wei WEI, Pinkuan LIU
期刊论文
relationship of industrial agglomeration and low-carbon economy considering spatiotemporal differentiation: An empirical
期刊论文
An Empirical Study on the Generation Mechanism of NIMBY Conflicts of Construction Projects
Guang-she Jia,Song-yu Yan,Wen-jun Wang,Ralf Müller,Chen Lin
期刊论文
An Empirical Study on the Internal Control Efficiency of Listed Engineering Companies
Zhi-wen Wang,Jing Tong
期刊论文
Empirical models and design codes in prediction of modulus of elasticity of concrete
Behnam VAKHSHOURI, Shami NEJADI
期刊论文
ANN-based empirical modelling of pile behaviour under static compressive loading
Abdussamad ISMAIL
期刊论文