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Time reversal method for guided wave inspection in pipes

DENG Fei, WU Bin, HE Cunfu

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 3, Pages 251-260 doi: 10.1007/s11465-008-0050-1

Abstract: The application of the time reversal method in pipe-like structures based on finite element method (FEMprocess.In parallel, a circumferential locating method based on the time reversal method is described.The time reversal process used for guided wave inspection leads to the temporal and spatial focusing.When the time reversal signals are re-emitted, the angular profile obtained at the axial location of

Keywords： reversal process beneficial circumferential location energy number

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TiO supported IrO for anode reversal tolerance in proton exchange membrane fuel cell

Frontiers in Energy 2022, Volume 16, Issue 5, Pages 852-861 doi: 10.1007/s11708-021-0811-7

Abstract: supported IrO_x is synthesized by utilizing the surfactant-assistant method and serves as reversalBesides, the MEA has a longer reversal time (530 min) than IrO_x (75 min), showing anexcellent reversal tolerance./Ti₄O₇ with a high dispersity has a great potential to the application on the reversal

Keywords： proton exchange membrane fuel cell (PEMFC) fuel starvation cell reverse reversal tolerance anode

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Flow, thermal, and vibration analysis using three dimensional finite element analysis for a flux reversal

B. VIDHYA,K. N. SRINIVAS

Frontiers in Energy 2016, Volume 10, Issue 4, Pages 424-440 doi: 10.1007/s11708-016-0423-9

Abstract: This paper presents the simulation of major mechanical properties of a flux reversal generator (FRG)

Keywords： flux reversal generator air velocity computation fluid dynamics thermal analysis vibration analysis finite

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The effects of festivals and special events on city image design

LIU Yuan, CHEN Chong

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 2, Pages 255-259 doi: 10.1007/s11709-007-0032-0

Abstract: such as the identification of city image, the promotion of the transmission of city image, and the reversal

Keywords： Visual Identity reversal transmission marketing Behavior Identity

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A logic-based controller for the mitigation of ventilation air methane in a catalytic flow reversal reactor

Zhikai LI, Zhangfeng QIN, Yagang ZHANG, Zhiwei WU, Hui WANG, Shuna LI, Mei DONG, Weibin FAN, Jianguo WANG

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 3, Pages 347-356 doi: 10.1007/s11705-013-1347-0

Abstract: The control system of a catalytic flow reversal reactor (CFRR) for the mitigation of ventilation airLowering the reference temperature for flow reversal can decrease the bed temperature and benefit stable

Keywords： ventilation air methane reverse flow reactor lean methane combustion logic-based controller mathematical modeling

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Study on Rank Reversals in Liner Allocation Method

Zhang Ling,Zhou Dequn

Strategic Study of CAE 2008, Volume 10, Issue 2, Pages 50-53

Abstract:

The problem that the liner allocation method can result in rank reversalsorting vectors and their relativity distribute ra tios are proposed to explain the causes of rank reversal

Keywords： decision making liner allocation method rank reversal rank preservation

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Study on Rank Preservation of the MCDM With Normalizing Formula

Zhang Ling,Zhou Dequn,Li Hongwei,Zhu Peifeng

Strategic Study of CAE 2006, Volume 8, Issue 12, Pages 85-88

Abstract: normalizing formula will result in violations of independence from irrelevant alternatives and lead to rank reversalIn the paper, the two methods that improve the original normalizing formula to erase the rank reversal

Keywords： decision normalizing violations of independence from irrelevant alternatives rank preservation rank reversal

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Applications of the crystallization process in the pharmaceutical industry

Sohrab ROHANI

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 1, Pages 2-9 doi: 10.1007/s11705-009-0297-z

Abstract: applications of the crystallization technique in the pharmaceutical industry as a purification and separation processThe effect of process variables and solvent on the polymorphism and morphology of stavudine is discussed

Keywords： feedback morphology pulmonary paracetamol recognition

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Degradation of refractory organics in concentrated leachate by the Fenton process: Central compositedesign for process optimization

Senem Yazici Guvenc, Gamze Varank

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 1, doi: 10.1007/s11783-020-1294-1

Abstract: the treatability of leachate nanofiltration concentrate through Fenton oxidation and optimization of processThe Fenton process improves the biodegradability of the leachate NF concentrate, increasing the BOD5/The operational cost of the process is calculated to be 0.238 €/g CODremoved.The results indicate that the Fenton oxidation process is an efficient and economical technology in improvement

Keywords： Concentrated leachate Fenton oxidation Central composite design Biodegradability Inert COD

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Review on mechanism and process of surface polishing using lasers

Arun KRISHNAN, Fengzhou FANG

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 3, Pages 299-319 doi: 10.1007/s11465-019-0535-0

Abstract: By varying the process parameters such as beam intensity, energy density, spot diameter, and feed rateHigh precision polishing of surfaces can be done using laser process.This article gives a detailed overview of the laser polishing mechanism by explaining various processparameters briefly to get a better understanding about the entire polishing process.

Keywords： laser polishing surface roughness process parameters mechanism

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Tool path strategy and cutting process monitoring in intelligent machining

Ming CHEN, Chengdong WANG, Qinglong AN, Weiwei MING

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 2, Pages 232-242 doi: 10.1007/s11465-018-0469-y

Abstract: A central technology of intelligent machining—the cutting process online monitoring and optimizationIn this research, the cutting process online monitoring and optimization in jet engine impeller machiningResults show that intelligent tool path optimization and cutting process online monitoring are efficient

Keywords： intelligent machining tool path strategy process optimization online monitoring

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Seasonal and treatment-process variations in invertebrates in drinking water treatment plants

Zhiling Wu, Xianchun Tang, Hongbin Chen

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1354-6

Abstract: Abstract • Seasonal and treatment-process variations in invertebrates in a DWTP were analyzed. • Thedisinfected clear water tanks. • Proportions of endogenous invertebrates increased along the treatment processdrinking water treatment plant between May 2015 and April 2016 and analyzed seasonal and treatment-processThe proportion of endogenous invertebrates gradually increased along the treatment process.

Keywords： Invertebrates Drinking water Seasonal variations Treatment process

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Special issue on “Green chemical process and intensification”

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 11, Pages 1533-1535 doi: 10.1007/s11705-022-2263-y

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Sulfate digestion process for high purity TiO

T. A. LASHEEN

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 2, Pages 155-160 doi: 10.1007/s11705-009-0005-z

Abstract: A titania slag product of Rosetta ilmenite assaying 72% TiO is treated by the sulfate process option

Keywords： titania slag sulfate process pigment

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Research Developments and Prospects on Microseismic Source Location in Mines Review

Jiulong Cheng,Guangdong Song,Xiaoyun Sun,Laifu Wen,Fei Li

Engineering 2018, Volume 4, Issue 5, Pages 653-660 doi: 10.1016/j.eng.2018.08.004

Abstract: Optimization of the velocity structure, along with applications of the time-reversal imaging technique, passive time-reversal mirror, and relative interferometric imaging, are expected to greatly improve

Keywords： Microseismic source location Influencing factors Time-reversal imaging Research progress Prospects for