检索范围:
排序: 展示方式:
Continuous modeling of soil morphology —thermomechanical behavior of embankment dams
Bettina ALBERS, Krzysztof WILMANSKI
《结构与土木工程前沿(英文)》 2011年 第5卷 第1期 页码 11-23 doi: 10.1007/s11709-010-0081-7
关键词: thermomechanical modeling soil morphology saturation porosity
Flow and thermal modeling of liquid metal in expanded microchannel heat sink
《能源前沿(英文)》 页码 796-810 doi: 10.1007/s11708-023-0877-5
关键词: liquid metal cooling heat sink expanded microchannel flow and thermal modeling
Mohammad ALSHAYEB,Nasser KHASHAN,Sajjad MAHMOOD
《信息与电子工程前沿(英文)》 2016年 第17卷 第2期 页码 143-159 doi: 10.1631/FITEE.1500094
The unified modeling language (UML) is one of the most commonly used modeling languages in the software industry.It simplifies the complex process of design by providing a set of graphical notations, which helps express the objectoriented analysis and design of software projects. Although UML is applicable to different types of systems, domains, methods,and processes, it cannot express certain problem domain needs. Therefore, many extensions to UML have been proposed. In this paper, we propose a framework for integrating the UML extensions and then use the framework to propose an integrated unified modeling language-graphical (iUML-g) form. iUML-g integrates the existing UML extensions into one integrated form. This includes an integrated diagram for UML class, sequence, and use case diagrams. The proposed approach is evaluated using a case study. The proposed iUML-g is capable of modeling systems that use different domains.
关键词: Unified modeling language (UML) Integration Modeling System analysis and design
Computer modeling of crystal growth of silicon for solar cells
Lijun LIU, Xin LIU, Zaoyang LI, Koichi KAKIMOTO
《能源前沿(英文)》 2011年 第5卷 第3期 页码 305-312 doi: 10.1007/s11708-011-0155-9
Lamb wave propagation modeling for structure health monitoring
Xiaoyue ZHANG, Shenfang YUAN, Tong HAO
《机械工程前沿(英文)》 2009年 第4卷 第3期 页码 326-331 doi: 10.1007/s11465-009-0045-6
关键词: Lamb wave modeling LISA/SIM theory finite difference equation finite element
Building information modeling and its impact on users in the lifeworld: A mediation perspective
Hans VOORDIJK
《工程管理前沿(英文)》 2019年 第6卷 第2期 页码 193-206 doi: 10.1007/s42524-019-0013-8
关键词: building information modeling mediation enframing lifeworld rationalization Heidegger Habermas Ihde
《结构与土木工程前沿(英文)》 2021年 第15卷 第6期 页码 1301-1316 doi: 10.1007/s11709-021-0765-1
Hierarchical modeling of stochastic manufacturing and service systems
Zhe George ZHANG, Xiaoling YIN
《工程管理前沿(英文)》 2017年 第4卷 第3期 页码 295-303 doi: 10.15302/J-FEM-2017047
关键词: stochastic modeling QBD process PH distribution heavy traffic limits diffusion process
Structural modeling of a typical gas turbine system
Naresh YADAV, Irshad Ahmad KHAN, Sandeep GROVER
《能源前沿(英文)》 2012年 第6卷 第1期 页码 57-79 doi: 10.1007/s11708-011-0164-8
关键词: system modeling gas turbine system evaluation graph theoretic approach
《农业科学与工程前沿(英文)》 2023年 第10卷 第4期 页码 579-592 doi: 10.15302/J-FASE-2023526
Nutrient pollution of air and water is a persistent problem in Europe. However, the pollution sources are often analyzed separately, preventing the formulation of integrative solutions. This study aimed to quantify the contribution of agriculture to air, river and coastal water pollution by nutrients. A new MARINA-Nutrients model was developed for Europe to calculate inputs of nitrogen (N) and phosphorus (P) to land and rivers, N emissions to air, and nutrient export to seas by river basins. Under current practice, inputs of N and P to land were 34.4 and 1.8 Tg·yr–1, respectively. However, only 12% of N and 3% of P reached the rivers. Agriculture was responsible for 55% of N and sewage for 67% of P in rivers. Reactive N emissions to air from agriculture were calculated at 4.0 Tg·yr–1. Almost two-fifths of N emissions to air were from animal housing and storage. Nearly a third of the basin area was considered as pollution hotspots and generated over half of N emissions to air and nutrient pollution in rivers. Over 25% of river export of N ended up in the Atlantic Ocean and of P in the Mediterranean Sea. These results could support environmental policies to reduce both air and water pollution simultaneously, and avoid pollution swapping.
关键词: agriculture air-water modeling European rivers nutrient pollution sewage systems source attribution
Dongping CAO, Heng LI, Guangbin WANG
《工程管理前沿(英文)》 2017年 第4卷 第1期 页码 20-34 doi: 10.15302/J-FEM-2017010
关键词: building information modeling interorganizational collaboration construction project performance resource dependence theory partial least squares modeling
《机械工程前沿(英文)》 2022年 第17卷 第2期 doi: 10.1007/s11465-022-0678-2
关键词: pneumatic artificial muscles soft robot modeling approach principle of virtual work external load
Steam turbine governor modeling and parameters testing for power system simulation
Ying LI, Chufeng PENG, Zenghui YANG
《能源前沿(英文)》 2009年 第3卷 第2期 页码 198-203 doi: 10.1007/s11708-009-0004-2
关键词: power system simulation ST governor system modeling parameters testing
Electromagnetic interference modeling and suppression techniques in variable-frequency drive systems
Le YANG, Shuo WANG, Jianghua FENG
《机械工程前沿(英文)》 2018年 第13卷 第3期 页码 329-353 doi: 10.1007/s11465-018-0466-1
Electromagnetic interference (EMI) causes electromechanical damage to the motors and degrades the reliability of variable-frequency drive (VFD) systems. Unlike fundamental frequency components in motor drive systems, high-frequency EMI noise, coupled with the parasitic parameters of the trough system, are difficult to analyze and reduce. In this article, EMI modeling techniques for different function units in a VFD system, including induction motors, motor bearings, and rectifier-inverters, are reviewed and evaluated in terms of applied frequency range, model parameterization, and model accuracy. The EMI models for the motors are categorized based on modeling techniques and model topologies. Motor bearing and shaft models are also reviewed, and techniques that are used to eliminate bearing current are evaluated. Modeling techniques for conventional rectifier-inverter systems are also summarized. EMI noise suppression techniques, including passive filter, Wheatstone bridge balance, active filter, and optimized modulation, are reviewed and compared based on the VFD system models.
关键词: variable-frequency drive (VFD) electromagnetic interference (EMI) motor drive modeling EMI noise suppression
An investigation on prevalent strategies for XFEM-based numerical modeling of crack growth in porous
《结构与土木工程前沿(英文)》 2021年 第15卷 第4期 页码 914-936 doi: 10.1007/s11709-021-0750-8
关键词: numerical modeling extended finite element method porous media crack growth stress intensity factor
标题 作者 时间 类型 操作
Continuous modeling of soil morphology —thermomechanical behavior of embankment dams
Bettina ALBERS, Krzysztof WILMANSKI
期刊论文
Computer modeling of crystal growth of silicon for solar cells
Lijun LIU, Xin LIU, Zaoyang LI, Koichi KAKIMOTO
期刊论文
Lamb wave propagation modeling for structure health monitoring
Xiaoyue ZHANG, Shenfang YUAN, Tong HAO
期刊论文
Building information modeling and its impact on users in the lifeworld: A mediation perspective
Hans VOORDIJK
期刊论文
Integrating storm surge modeling with traffic data analysis to evaluate the effectiveness of hurricane
期刊论文
Hierarchical modeling of stochastic manufacturing and service systems
Zhe George ZHANG, Xiaoling YIN
期刊论文
Structural modeling of a typical gas turbine system
Naresh YADAV, Irshad Ahmad KHAN, Sandeep GROVER
期刊论文
HOTSPOTS OF NUTRIENT LOSSES TO AIR AND WATER: AN INTEGRATED MODELING APPROACH FOR EUROPEAN RIVER BASINS
期刊论文
Impacts of building information modeling (BIM) implementation on design and construction performance:
Dongping CAO, Heng LI, Guangbin WANG
期刊论文
Design and modeling of a novel soft parallel robot driven by endoskeleton pneumatic artificial muscles
期刊论文
Steam turbine governor modeling and parameters testing for power system simulation
Ying LI, Chufeng PENG, Zenghui YANG
期刊论文
Electromagnetic interference modeling and suppression techniques in variable-frequency drive systems
Le YANG, Shuo WANG, Jianghua FENG
期刊论文