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Polysulfone and zirconia composite separators for alkaline water electrolysis

Li XU, Wei LI, Yan YOU, Shaoxing ZHANG, Yingchun ZHAO

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 2,   Pages 154-161 doi: 10.1007/s11705-013-1331-8

Abstract: experimental apparatus was used to investigate the changes of cell voltage, gas purity and separator stabilitydecreased cell voltage compared to the conventional asbestos separators, and the gas purity and separator stability

Keywords： phase inversion     separator     alkaline water electrolysis     mechanical and chemical stability    

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Effect of land-use management systems on coupled physical and mechanical, chemical and biological soil

Rainer HORN, Winfried E. H. BLUM

Frontiers of Agricultural Science and Engineering 2020, Volume 7, Issue 3,   Pages 243-245 doi: 10.15302/J-FASE-2020334

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Rosin side chain type catalyst-free vitrimers with high cross-link density, mechanical strength, andthermal stability

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 9,   Pages 1267-1279 doi: 10.1007/s11705-022-2291-7

Abstract: self-healing properties, excellent heat resistance (Td = 352 °C) as well as high mechanical

Keywords： vitrimers     rosin     catalyst-free     high mechanical properties     dynamic transesterification reaction    

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Design method and verification of a hybrid prosthetic mechanism with energy-damper clutchable device for transfemoral amputees

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4,   Pages 747-764 doi: 10.1007/s11465-021-0644-4

Abstract: human-like multiple motion characteristics by simple structures to fit the kinesiology, biomechanics, and stabilityThe kinematic and mechanical performances of the designed parallel mechanism are analyzed to verify theirand effectively decrease the peak power of actuators from 94.74 to 137.05 W while maintaining a good mechanicaladaptive stability.

Keywords： hybrid transfemoral prosthetic mechanism     energy recycling     wearable mechanical clutched device     mechanicaladaptive stability    

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Preparation of composite abrasives by electrostatic self assembly methodand its polishing properties in Cu chemicalmechanical polishing

Huang Yishen,Xu Xuefeng,Yao Chunyan,Hu Jiande and Peng Wei

Strategic Study of CAE 2012, Volume 14, Issue 10,   Pages 82-89

Abstract:

The absorption characteristics of cationic polyelectrolyte PDADMAC and anionic polyelectrolyte PSS on benzoguanamine formaldehyde (BGF) particles are investigated. The charging characteristics of BGF particles are changed and controlled using electrostatic self assembly method. A variety of PEi BGF/SiO2 composite abrasives are obtained. The as prepared samples are analyzed by Zeta potential analysis, transmission electron microscope (TEM) and thermogravimetric (TG) analysis. The composite abrasives slurries are prepared for copper polishing. The polishing results indicate that it is SiO2 abrasives, not only coated SiO2 abrasive on polymer particles but also free SiO2 abrasive in slurry, that offer the polishing action. The material removal rates of copper polishing are 264 nm/min, 348 nm/min and 476 nm/min using single SiO2 abrasive slurry, PE0 BGF/SiO2 mixed abrasives slurry and PE3 BGF/SiO2 composite abrasives slurry respectively. The surface roughness Ra of copper wafer (with 5 μm×5 μm district) is decreased from 0.166 μm to 3.7 nm, 2.6 nm and 1.5 nm, and the surface peak valley values Rpv are less than 20 nm, 14 nm and 10 nm using these kinds of slurries respectively.

Keywords： chemical mechanical polishing     polishing slurry     composite abrasives     polyelectrolyte     copper    

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A time−space porosity computational model for concrete under sulfate attack

Frontiers of Structural and Civil Engineering doi: 10.1007/s11709-023-0985-7

Abstract: This study proposes a mechanical–chemical model to simulate the spatiotemporal distribution of the porosity

Keywords： expansion deformation     porosity     internal expansion stress     external sulfate attack     mechanical–chemical    

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Extended stochastic resonance (SR) and its applications in weak mechanical signal processing

Niaoqing HU, Min CHEN, Guojun QIN, Lurui XIA, Zhongyin PAN, Zhanhui FENG,

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 4,   Pages 450-461 doi: 10.1007/s11465-009-0072-3

Abstract: First, a discrete model of a bistable system that can demonstrate SR is researched, and the stability

Keywords： extended stochastic resonance (SR)     stability analysis of SR     scale transform     weak signal detection     incipient    

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Self-sacrificial templating synthesis of flower-like nickel phyllosilicates and its application as high-performance reinforcements in epoxy nanocomposites

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 4,   Pages 484-497 doi: 10.1007/s11705-021-2074-6

Abstract: Several properties of mechanical, thermal and tribological responses of epoxy nanocomposites were performedincorporated flower-like nickel phyllosilicate particles resulted in the continuously increasing thermal stability

Keywords： nickel phyllosilicate     flow-like structure     mechanical property     thermal stability     tribological performance    

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A bionic approach for the mechanical and electrical decoupling of an MEMS capacitive sensor in ultralow

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-023-0747-1

Abstract: However, attention has been rarely given on the influences of external mechanical and internal electricalIn this work, a bionic swallow structure design norm was developed for mechanical decoupling, and theinfluences of structural parameters on mechanical behavior were fully analyzed and optimized.High immunity to mechanical disturbances was maintained simultaneously, i.e., less than 0.369% and 0.058%

Keywords： micro-electro-mechanical system capacitive sensor     bionics     operation instability     mechanical and electrical    

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Synthesis and characterization of biodegradable thermoplastic elastomers derived from N′,N-bis (2-carboxyethyl)-pyromellitimide, poly(butylene succinate) and polyethylene glycol

Jiaojiao Shang, Guo Yao, Ronghui Guo, Wei Zheng, Long Gu, Jianwu Lan

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 3,   Pages 457-466 doi: 10.1007/s11705-018-1716-9

Abstract: The chemical structures, crystallinities, thermal stabilities, mechanical properties, hydrophilicitiesmoieties in the poly(ether-ester) reduced the crystallinity of the material and improved the thermal stability

Keywords： thermoplastic elastomers     biodegradability     thermo-stability     mechanical property     aromatic bisimide moiety    

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Solvates and polymorphs of clindamycin phosphate: Structural, thermal stability and moisture stability

Junbo Gong, Dejiang Zhang, Yuanyuan Ran, Keke Zhang, Shichao Du

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 2,   Pages 220-230 doi: 10.1007/s11705-017-1624-4

Abstract: Clindamycin phosphate (CP), an antibacterial agent, has been reported to form several solid-state forms. The crystal structures of two CP solvates, a dimethyl sulfoxide (DMSO) solvate and a methanol/water solvate (solvate V), have been determined by single crystal X-ray diffraction. The properties and transformations of these forms were characterized by powder X-ray diffraction, Single-crystal X-ray diffraction, differential scanning calorimetry, thermo gravimetric analysis, hot-stage microscopy, and dynamic vapor sorption. Very different hydrogen bonding networks exist among the host-host and host-solvent molecules in the two crystal structures, resulting in different moisture stabilities. The thermal stabilities of the two solvates upon heating and desolvation were also studied. When the temperature was above the boiling point of methanol, solvate V converted to a polymorphic phase after a one step desolvation process, whereas the desolvation temperature of the DMSO solvate was below the boiling point of DMSO. At the relative humidity above 43%, the DMSO solvate transformed to a hydrate at 25 °C. In contrast, solvate V did not transform at any of the humidities studied.

Keywords： clindamycin phosphate     solvate     crystal structure     thermal stability     moisture stability    

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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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Special Issue for the Future Chemical Engineering Scholars of Global Chinese Chemical Engineering Symposium

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6,   Pages 775-776 doi: 10.1007/s11705-022-2172-0

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Determination of mechanical parameters for elements in meso-mechanical models of concrete

Xianglin GU, Junyu JIA, Zhuolin WANG, Li HONG, Feng LIN

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4,   Pages 391-401 doi: 10.1007/s11709-013-0225-7

Abstract: based on the discrete element method with the modified-rigid-body-spring concrete model, in which the mechanicalpredicted by the Carpinteri and Weibull size effects laws, a series of formulas to convert the macro-scale mechanical

Keywords： concrete     meso-mechanical model     discrete element method     size effect     mechanical parameter    

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Facile synthesis of polyaniline nanorods to simultaneously enhance the mechanical properties and wear

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 9,   Pages 1254-1266 doi: 10.1007/s11705-023-2297-3

Abstract: To enhance the mechanical properties and wear resistance of epoxy resin, polyaniline nanorods were firstthe phase structures and compositions of polyaniline nanorods, and their positive influences on the mechanical

Keywords： epoxy resin     polyaniline nanorods     mechanical property     tribological performance     wear mechanism    

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Title Author Date Type Operation

Polysulfone and zirconia composite separators for alkaline water electrolysis

Li XU, Wei LI, Yan YOU, Shaoxing ZHANG, Yingchun ZHAO

Journal Article

Effect of land-use management systems on coupled physical and mechanical, chemical and biological soil

Rainer HORN, Winfried E. H. BLUM

Journal Article

Rosin side chain type catalyst-free vitrimers with high cross-link density, mechanical strength, andthermal stability

Journal Article

Design method and verification of a hybrid prosthetic mechanism with energy-damper clutchable device for transfemoral amputees

Journal Article

Preparation of composite abrasives by electrostatic self assembly methodand its polishing properties in Cu chemicalmechanical polishing

Huang Yishen,Xu Xuefeng,Yao Chunyan,Hu Jiande and Peng Wei

Journal Article

A time−space porosity computational model for concrete under sulfate attack

Journal Article

Extended stochastic resonance (SR) and its applications in weak mechanical signal processing

Niaoqing HU, Min CHEN, Guojun QIN, Lurui XIA, Zhongyin PAN, Zhanhui FENG,

Journal Article

Self-sacrificial templating synthesis of flower-like nickel phyllosilicates and its application as high-performance reinforcements in epoxy nanocomposites

Journal Article

A bionic approach for the mechanical and electrical decoupling of an MEMS capacitive sensor in ultralow

Journal Article

Synthesis and characterization of biodegradable thermoplastic elastomers derived from N′,N-bis (2-carboxyethyl)-pyromellitimide, poly(butylene succinate) and polyethylene glycol

Jiaojiao Shang, Guo Yao, Ronghui Guo, Wei Zheng, Long Gu, Jianwu Lan

Journal Article

Solvates and polymorphs of clindamycin phosphate: Structural, thermal stability and moisture stability

Junbo Gong, Dejiang Zhang, Yuanyuan Ran, Keke Zhang, Shichao Du

Journal Article

Special issue on “Green chemical process and intensification”

Journal Article

Special Issue for the Future Chemical Engineering Scholars of Global Chinese Chemical Engineering Symposium

Journal Article

Determination of mechanical parameters for elements in meso-mechanical models of concrete

Xianglin GU, Junyu JIA, Zhuolin WANG, Li HONG, Feng LIN

Journal Article

Facile synthesis of polyaniline nanorods to simultaneously enhance the mechanical properties and wear

Journal Article