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A new heat transfer correlation for supercritical fluids

Yanhua YANG, Xu CHENG, Shanfang HUANG

Frontiers in Energy 2009, Volume 3, Issue 2, Pages 226-232 doi: 10.1007/s11708-009-0022-0

Abstract: A new method of heat transfer prediction in supercritical fluids is presented.

Keywords： super critical fluids heat transfer circular tubes prediction method

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Analysis and experiment of controllability of magnetorheological fluids based on micro-pipeline

Yongqing SU, Yikuan SONG, Jiguang YUE

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 3, Pages 339-344 doi: 10.1007/s11465-009-0048-3

Abstract: The controllability of the magneto-rheological fluid (MRF) flowing through a micro-pipeline is analyzed. The coupled formulas for MRF are deduced by analyzing the property of the flow field and magnetic field. Then, the relationship between the flow speed of MRF and the special shear stress under the effect of the magnetic field is founded. The model of the MRF and micro-pipeline is established by using multi-physics software of Comsol, the curve of - in an ideal condition is attained by modifying parameters, and by adding the boundary condition of the model. This paper provides a theoretical proof of the controllability of MRF flowing through the micro-pipeline and explores MRF’s application on the micro-drive and control field.

Keywords： Magneto-rheological fluids (MRF) micro-pipeline coupled model multi-physics simulation

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The development of aerodynamics & configurationtechnology for large aircraft

Zhang Yanzhong

Strategic Study of CAE 2009, Volume 11, Issue 5, Pages 4-17

Abstract:

The paper introduced the development of aerodynamics & configuration technology for large aircraft.The technique of fuselage and the advanced aerodynamics configuration — blended wing body (BWB) were described. The impact of aerodynamics & configuration technology on safety, economical, comfortable and environmental characters for large aircraft was analyzed.The proposal for enhancing the research of aerodynamics in China was presented.

Keywords： large aircraft aerodynamics super critical foil winglet laminar flow technique BWB CFD wind tunnel

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Structure improvement and strength finite element analysis of VHP welded rotor of 700°C USC steam turbine

Jinyuan SHI,Zhicheng DENG,Yong WANG,Yu YANG

Frontiers in Energy 2016, Volume 10, Issue 1, Pages 88-104 doi: 10.1007/s11708-015-0387-1

Abstract: strength design and finite element analysis method for very high pressure (VHP) rotors of the 700°C ultra-super-critical

Keywords： 700°C ultra-super-critical unit steam turbine very high pressure rotor structure strength design strength

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An autonomous system for thermal convection of viscoelastic fluids in a porous layer using a thermal

Qi WEI, Xiaohui ZHANG

Frontiers in Energy 2010, Volume 4, Issue 4, Pages 507-516 doi: 10.1007/s11708-010-0017-x

Abstract: Thermal convection of viscoelastic fluids saturating a horizontal porous layer heated from below is analyzedThe effects of interphase heat transfer on the thermal convection of viscoelastic fluids in a porous

Keywords： thermal convection porous media viscoelastic fluid thermal nonequilibrium model

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Combined static mixers for high viscous fluids mixing

Zhenhao XI, Weizhen SUN, Ling ZHAO, Zhaoyan LIU

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 1, Pages 93-96 doi: 10.1007/s11705-009-0112-x

Abstract: A new static mixer Cross-over-Disc has been invented to strip off the boundary layer and to make strong radial mixing. The pressure drop of Cross-over-Disc is 12—26 times as large as that of empty pipe with equivalent diameter and length. The mixing performance of Cross-over-Disc with 14 elements has been investigated in the viscosity range of 190—250 Pa?s by decoloration method, and the gray analysis of images shows that mixing inhomogeneity is about 7.5% and 9.4% for the mixing ratio of 5∶1 and 10∶1, respectively. Furthermore, mixing inhomogeneity for a combination of static mixing elements (four from Cross-over-Disc and three pairs from Sulzer-type) can be decreased to 2.1%—3.1% within a reasonable range of pressure drop.

Keywords： static mixer Cross-over-Disc pressure drop mixing performance high viscous fluid

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Developing and promoting advanced coal-fired power generation technologies to support sustainable development of the electric power industry

Zhang Xiaolu

Strategic Study of CAE 2012, Volume 14, Issue 12, Pages 52-57

Abstract: power technology in China, reviews the R & D achievements and industrial commercialization of ultra supercritical technology and large scale air cooling technology, and expounds the supporting role of these

Keywords： coal-fired power generation ultra super critical air-cooling intensive environment-friendly development

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Breeding strategies for increasing yield potential in super hybrid rice

Shihua CHENG,Xiaodeng ZHAN,Liyong CAO

Frontiers of Agricultural Science and Engineering 2015, Volume 2, Issue 4, Pages 277-282 doi: 10.15302/J-FASE-2015081

Abstract: Super hybrid rice breeding is a new breeding method combining semi-dwarf breeding and heterosis breedingThis paper reviews the breeding strategies of super hybrid rice breeding in China, focusing on the utilizationTo develop super hybrid rice, considerable effort should be made to explore genes related with high yieldMolecular breeding methods in combination with crossing techniques should be adopted in super hybrid

Keywords： super hybrid rice breeding strategies yield potential

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Tool wear mechanisms in the machining of Nickel based super-alloys: A review

Waseem AKHTAR,Jianfei SUN,Pengfei SUN,Wuyi CHEN,Zawar SALEEM

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 2, Pages 106-119 doi: 10.1007/s11465-014-0301-2

Abstract:

Nickel based super-alloys are widely employed in aircraft engines and gas turbines due to their highThis study provides a detailed review of the tool wear mechanism in the machining of nickel based super-alloys

Keywords： tool wear nickel based super-alloy wear mechanism

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Sulige Gas Field super project

Wenrui HU, Jingwei BAO, Pengcheng JI

Frontiers of Engineering Management 2017, Volume 4, Issue 3, Pages 379-384 doi: 10.15302/J-FEM-2017107

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Cross-stacked super-aligned carbon nanotube/activated carbon composite electrodes for efficient water

Min Li, Shuai Liang, Yang Wu, Meiyue Yang, Xia Huang

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 6, doi: 10.1007/s11783-020-1286-1

Abstract: Abstract • A high-performance electrode was prepared with super-aligned carbon nanotubes. • SACNT/ACThe current study demonstrated a novel super-aligned carbon nanotube (SACNT)/activated carbon (AC) composite

Keywords： Carbon nanotube Super aligned Conductive membrane Capacitive deionization Ultrafiltration Desalination

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Microbial biodegradation of plastics: Challenges, opportunities, and a critical perspective

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 12, doi: 10.1007/s11783-022-1596-6

Abstract:

● Health hazards of plastic waste on environment are discussed.

Keywords： Plastic-waste Polymers Health-hazards Biodegradation Microorganisms Enzymes

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Effective and selective separation of perrhenate from acidic wastewater by super-stable, superhydrophobic

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 2, doi: 10.1007/s11783-021-1456-9

Abstract:

• A ZnO-biochar hybrid composite was prepared by solvothermal-pyrolysis synthesis.

Keywords： Selectivity Adsorption Re(VII) ZnO Biochar

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Nonpolar cross-stacked super-aligned carbon nanotube membrane for efficient wastewater treatment

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 3, doi: 10.1007/s11783-023-1630-3

Abstract:

● A novel nonpolar super-aligned carbon nanotube (SACNT) membrane

Keywords： Membrane fouling Wastewater Membrane separation Antifouling Aligned carbon nanotube

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A super-element approach for structural identification in time domain

LI Jie, ZHAO Xin

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 2, Pages 215-221 doi: 10.1007/s11465-006-0004-4

Abstract: A super-element approach is proposed in this study to identify the structural parameters of a large-scaleThe most interesting feature of the proposed super-element approach is its divide-and-conquer abilityThe super-element model used for time domain identification is first discussed in this study.on the sensitivities of response forces is introduced to establish the identification equations of super-elementsSome principles are suggested on effective decomposing of the whole structure into super-elements for

Keywords： numerical effective decomposing parameterization procedure divide-and-conquer ability time-domain identification