Search | Engineering

Subscribe Submit

Home Journals Focus Achievement Fronts About Us 中文版

Resource Type

Journal Article 22

Conference Videos 1

Year

2022 1

2021 2

2020 1

2019 1

2018 2

2016 1

2015 2

2014 2

2013 4

2012 1

2009 2

2008 1

2006 1

2005 1

open ︾

Keywords

phase diagram 3

finite element analysis 2

-10#emulsified diesel oil 1

4-adj model 1

in-situ characterization 1

Bifurcation diagram 1

CDR 1

Causal loop diagram 1

Chinese natural comprehension 1

Crystal structure 1

Environmental protection 1

Flory-Huggins theory 1

Fractional PIλDμ controller 1

Fractional order system 1

Gender 1

Genesio-Tesi chaotic system 1

Howard canonical form 1

MBR 1

Magnetic phase diagram 1

open ︾

Search scope:

排序： Display mode:

Research on 4-adj model for determination of spatial relations in spattio model

Li Chengming

Strategic Study of CAE 2013, Volume 15, Issue 5, Pages 37-41

Abstract: last, the paper proposes the new method called four-adjacent mathematical model (4-adj model) based on Voronoidiagram to dynamically infer the spatial relations in spattio model, and gives the only complete inference

Keywords： spattio model spattio object Voronoi diagram 4-adj model

HTML PDF Collect

Directional relation description and calculation based on Voronoi region in GIS

Li Chengming

Strategic Study of CAE 2013, Volume 15, Issue 5, Pages 25-29

Abstract: In this paper on the basis of CDR,a solution using Voronoi Region of MBR is suggested,and the wonderful

Keywords： directional relation Voronoi Region CDR MBR

HTML PDF Collect

Development of dimensionless P-I diagram for curved SCS sandwich shell subjected to uniformly distributed

Yonghui WANG, Ximei ZHAI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 6, Pages 1432-1445 doi: 10.1007/s11709-019-0566-y

Abstract: In this paper, a dimensionless Pressure-Impulse (P-I) diagram was constructed as a convenient tool toTo construct the dimensionless P-I diagram, the energy balance method was utilized to yield the pressureThen, the finite element method was employed to validate the developed dimensionless P-I diagram.Finally, the procedures of using the constructed dimensionless P-I diagram to quickly conduct the blast

Keywords： blast loading curved steel-concrete-steel sandwich shell Pressure-Impulse diagram single-degree-of-freedom

HTML PDF Collect

The Method of Calculating the Value of Perfect Information Based on the Influence Diagram

Liu Yanqiong,Chen Yingwu

Strategic Study of CAE 2006, Volume 8, Issue 8, Pages 45-49

Abstract: presents that the value of perfect information could be described by the information arc in the influence diagramLast, how to calculate the value of perfect information based on the influence diagram is analyzed systematically

Keywords： value of perfect information influence diagram Howard canonical form

HTML PDF Collect

Design and optimization of reactive distillation: a review

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6, Pages 799-818 doi: 10.1007/s11705-021-2128-9

Abstract: Reactive distillation process, a representative process intensification technology, has been widely applied in the chemical industry. However, due to the strong interaction between reaction and separation, the extension of reactive distillation technology is restricted by the difficulties in process analysis and design. To overcome this problem, the design and optimization of reactive distillation have been widely studied and illustrated for plenty of reactive mixtures over the past three decades. These design and optimization methods of the reactive distillation process are classified into three categories: graphical, optimization-based, and evolutionary/heuristic methods. The primary objective of this article is to provide an up-to-date review of the existing design and optimization methods. Desired and output information, advantages and limitations of each method are stated, the modification and development for original methodologies are also reviewed. Perspectives on future research on the design and optimization of reactive distillation method are proposed for further research.

Keywords： reactive distillation process intensification design method reactive phase diagram optimization algorithm

HTML PDF Collect

Urban constructed wetlands: Assessing ecosystem services and disservices for safe, resilient, and sustainable cities

Frontiers of Engineering Management Pages 582-596 doi: 10.1007/s42524-023-0268-y

Abstract: The ternary phase diagram reveals that all constructed wetlands provide more benefits than costs and

Keywords： constructed wetland emergy ecosystem services disservices ternary diagram

HTML PDF Collect

Study on wave rotor refrigerators

Yuqiang DAI, Dapeng HU, Meixia DING

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 1, Pages 83-87 doi: 10.1007/s11705-009-0075-y

Abstract: A basic limitation on main structural parameters and operating parameters is deduced and the wave diagram

Keywords： wave rotor refrigeration unsteady flow theory wave diagram

HTML PDF Collect

Micro-hydromechanical deep drawing of metal cups with hydraulic pressure effects

Liang LUO, Zhengyi JIANG, Dongbin WEI, Xiaogang WANG, Cunlong ZHOU, Qingxue HUANG

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1, Pages 66-73 doi: 10.1007/s11465-018-0468-z

Abstract: A Voronoi-based finite element model is proposed in this paper to consider the change in lubrication

Keywords： micro-hydromechanical deep drawing microforming size effects lubrication Voronoi

HTML PDF Collect

A collaborative target tracking algorithm for multiple UAVs with inferior tracking capabilities Research Articles

Zhi Zheng, Shuncheng Cai,zhengz@fjnu.edu.cn

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 10, Pages 1334-1350 doi: 10.1631/FITEE.2000362

Abstract: We propose a novel Voronoi diagram, called MDA-Voronoi, which divides the area with obstacles accordingIn each MDA-Voronoi region, the maximum reachable region of each UAV is defined, the upper and lower

Keywords：协同跟踪；意图估计；MDA-Voronoi图；多无人机；性能不占优

HTML PDF Collect

Calculation on phase diagrams of polyetherimide/

Ming TAN,Gaohong HE,Yan DAI,Rujie WANG,Wenhua SHI

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 3, Pages 312-319 doi: 10.1007/s11705-014-1434-x

Abstract: The ternary phase diagrams of polyetherimide (PEI)/ , -dimethylacetamide (DMAc) with H O and BuOH as non-solvent were simulated using solubility parameter and Flory-Huggins theory. The phase diagrams show that 5.5% H O/BuOH system containing 5% BuOH and 0.5% H O, or 6.5% H O/BuOH system containing 6.2% BuOH and 0.3% H O is required to induce liquid-liquid demixing for 20 wt-% PEI/DMAc casting solution. Therefore, BuOH can enhance the phase separation of the PEI casting solution and hereby induce higher porosity of the membrane, and the diffusion of BuOH into the water coagulation bath causes larger pore size easily compared with DMAc. Our predictions that the membrane pure water flux first increases then decreases, and the rejection ratio of bovine serum albumin decreases with the increasing concentration of BuOH were validated by the experiments using the prepared membranes.

Keywords： phase diagram solubility parameter interaction parameter ultrafiltration Flory-Huggins theory

HTML PDF Collect

Construction Duration and Cost Simulation via Network-Program-Diagram

Wei-dong Wang,Jie Wu,Kai-jun Wang,Xin Wen

Frontiers of Engineering Management 2014, Volume 1, Issue 2, Pages 210-217 doi: 10.15302/J-FEM-2014028

Abstract: the simulation results of every procedure’s duration and resource requirements, the Network Program DiagramFurthermore, with the Network Program Diagram at the core, the 4D model can incorporate simulation’s

Keywords： construction duration construction cost activity-on-node diagram building information modeling

HTML PDF Collect

Liquid metal material genome: Initiation of a new research track towards discovery of advanced energy materials

Lei WANG, Jing LIU

Frontiers in Energy 2013, Volume 7, Issue 3, Pages 317-332 doi: 10.1007/s11708-013-0271-9

Abstract: Particularly, the calculation of phase diagram (CALPHAD) approach as a highly effective way for material

Keywords： energy material material discovery advanced material room-temperature liquid alloy thermodynamics phase diagram

HTML PDF Collect

Neutron Diffraction Investigation of the DyFe₁₁Ti Magnetic Structure and Its Spin Reorientations Article

Olivier Isnard, Eder J. Kinast

Engineering 2020, Volume 6, Issue 2, Pages 153-157 doi: 10.1016/j.eng.2019.11.009

Abstract:

In this article, we report on the magnetic structure of DyFe₁₁Ti and its thermal evolution as probed by neutron powder diffraction. A thermodiffraction technique was used to follow the temperature dependence of the magnetic moments, as well as their orientation. The Dy and Fe moments were coupled to each other in an antiparallel manner to form a ferrimagnet, where the easy magnetization direction at 2 K was the [110] axis in the basal (a, b) plane. This magnetic structure underwent two successive spin reorientation phenomena with increasing temperature. A large Dy magnetic moment of 9.7 μ_B was obtained at low temperatures, and the magnitude decreased rapidly to 7.5 μ_B at 200 K. The largest Fe magnetic moment was observed on the Fe 8i position. A ThMn₁₂-type crystal structure was preserved in the studied temperature range, despite the large changes of the magnetic structure. A sharp tilt was observed at the first-order spin reorientation, T_SR1; the angle between the easy magnetization axis and the crystal c axis was reduced from 90° at 2 K to about 20° at 200 K (where c is the easy axis above 200 K); and the Dy and Fe magnetic moments maintained an antiparallel coupling.

Keywords： Neutron diffraction Magnetic phase diagram Crystal structure

HTML PDF Collect

Dynamic relationship analysis among parties of the low-carbon building

Liu Hongyong,Zheng Junwei,Lin Cheng

Strategic Study of CAE 2012, Volume 14, Issue 12, Pages 94-99

Abstract: , evaluation testing institution, department of property management and public, puts forward to the diagramof the relationships among the stakeholders, and designs the causal dynamic relationship diagram about

Keywords： low-carbon building stakeholders causal relation diagram dynamic analysis

HTML PDF Collect

Unit commitment using dynamic programming–an exhaustive working of both classical and stochastic approach

Balasubramaniyan SARAVANAN, Surbhi SIKRI, K. S. SWARUP, D. P. KOTHARI

Frontiers in Energy 2013, Volume 7, Issue 3, Pages 333-341 doi: 10.1007/s11708-013-0259-5

Abstract: In the present electricity market, where renewable energy power plants have been included in the power systems, there is a lot of unpredictability in the demand and generation. There are many conventional and evolutionary programming techniques used for solving the unit commitment (UC) problem. Dynamic programming (DP) is a conventional algorithm used to solve the deterministic problem. In this paper DP is used to solve the stochastic model of UC problem. The stochastic modeling for load and generation side has been formulated using an approximate state decision approach. The programs were developed in a MATLAB environment and were extensively tested for a four-unit eight-hour system. The results obtained from these techniques were validated with the available literature and outcome was good. The commitment is in such a way that the total cost is minimal. The novelty of this paper lies in the fact that DP is used for solving the stochastic UC problem.

Keywords： unit commitment (UC) deterministic stochastic dynamic programming (DP) optimization state diagram