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Wear mechanism of disc-brake block material for new type of drilling rig

WANG Xinhua, WANG Simin, ZHANG Siwei, WANG Deguo

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 1,   Pages 10-16 doi: 10.1007/s11465-008-0009-2

Abstract: wear performance and service life of the disc-brake pair material of a drilling rig, a new type of asbestos-freefrictional material with better performance for disc-brake blocks is developed, and its wear mechanismWhen the frictional temperature is lower, the surface film of the brake block is thinner, dense, smoothThe mixture area consists of various constituents of frictional pairs without ploughing and rolling traceDuring the period of high frictional temperature, the frictional surface is also divided into the mixture

Keywords： asbestos-free frictional     Fracture     cyclization     friction     disc-brake    

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Effects of inner sleeves on the inner frictional resistance of open-ended piles driven into sand

Janaka J. KUMARA,Yoshiaki KIKUCHI,Takashi KURASHINA,Takahiro YAJIMA

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 4,   Pages 499-505 doi: 10.1007/s11709-016-0335-0

Abstract: Inner frictional resistance depends largely on the degree of soil plugging, which is influenced by manyIn this paper, effects of inner sleeves on inner frictional resistance are discussed.The results suggest that inner frictional resistance, increases with sleeve height, linearly and

Keywords： bearing capacity     inner frictional resistance     inner sleeve     open-ended piles     soil plugging    

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Calculating frictional force with considering material microstructure and potential on contact surfaces

XU Zhongming, HUANG Ping

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 4,   Pages 474-477 doi: 10.1007/s11465-007-0082-y

Abstract: based on the energy dissipation mechanism of an Independent Oscillator model is used to calculate the frictionalThe relationships between frictional force and parameters of a tribo-system, such as surface energy andThe calculation results of the known experimental data denote that the frictional force is nearly proportional

Keywords： coefficient     dissipation mechanism     universal adhesive     interfacial     Independent Oscillator    

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Elastoplastic frictional contact problem study on interference fits of compressor

ZHANG Hongwu, WU Changhua, LIAO Aihua

Frontiers in Energy 2008, Volume 2, Issue 3,   Pages 313-319 doi: 10.1007/s11708-008-0026-1

Abstract: variational principle (PVP) was used for the analysis of the stress distribution of the 3D elastoplastic frictionalThe solution of elastoplastic frictional contact problems belongs to unspecified boundary problems where

Keywords： computation     thickness     interference-fit     interference     unspecified    

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The strength–dilatancy characteristics embraced in hypoplasticity

Zhongzhi FU, Sihong LIU, Zijian WANG

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 2,   Pages 178-187 doi: 10.1007/s11709-013-0191-0

Abstract: The strength-dilatancy characteristics of frictional materials embraced in the hypoplastic model proposed

Keywords： strength     dilatancy     hypoplasticity     frictional materials    

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Cell-free systems in the new age of synthetic biology

Fernando Villarreal,Cheemeng Tan

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 1,   Pages 58-65 doi: 10.1007/s11705-017-1610-x

Abstract: The advent of synthetic biology has ushered in new applications of cell-free transcription-translationThese cell-free systems are reconstituted using cellular proteins, and are amenable to modular controlHere, we discuss the historical advancement of cell-free systems, as well as their new applications inFinally, we present our vision on the future direction of cell-free synthetic biology.

Keywords： cell-free system     application    

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Carbonation of Chrysotile under Subduction Conditions Article

Mihye Kong, Yongjae Lee

Engineering 2019, Volume 5, Issue 3,   Pages 490-497 doi: 10.1016/j.eng.2019.01.007

Abstract: understand deep carbon cycling along the subduction zones, and may prompt the design of a novel method of asbestos

Keywords： Volatile     Carbon cycle     Serpentine     Asbestos     Subduction zone    

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Recent advances in cycloaddition of CO with epoxides: halogen-free catalysis and mechanistic insights

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12,   Pages 1879-1894 doi: 10.1007/s11705-023-2354-4

Abstract: To address these concerns, the halogen-free cycloaddition of CO2 with epoxides has alwaysIn this review, we systematically discussed the halogen-free catalysis for cycloaddition of CO2freeSpecially, metal oxides as the potential halogen-free catalysts are highlighted due to their flexible

Keywords： carbon dioxide     halogen-free catalysis     cyclic carbonate     mechanistic insight    

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Hollow carbon spheres and their noble metal-free hybrids in catalysis

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 6,   Pages 1380-1407 doi: 10.1007/s11705-021-2097-z

Abstract: Herein, we overview hollow carbon sphere-based materials and their noble metal-free hybrids in catalysiscontrolling pore structure and surface morphology, and then heterogeneous doping as well as their metal-free

Keywords： hollow carbon spheres     functionalization     noble metal-free     catalysis    

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Decontamination of Cr(VI) facilitated formation of persistent free radicals on rice husk derived biochar

Kaikai Zhang, Peng Sun, Yanrong Zhang

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 2, doi: 10.1007/s11783-019-1106-7

Abstract:

PFRs were produced on biochar during Cr(VI) decontamination.

PFRs formation on biochar was owing to the oxidization of phenolic-OH by Cr(VI).

Appearance of excessive oxidant led to the consumption of PFRs on biochar.

Biochar charred at high temperature possessed great performance to Cr(VI) removal.

Keywords： Biochar     Persistent free radicals     Phenolic hydroxyl groups     Cr(VI) reduction    

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Thermoresponsive block copolymer supported Pt nanocatalysts for base-free aerobic oxidation of 5-hydroxymethyl

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 6,   Pages 1514-1523 doi: 10.1007/s11705-021-2092-4

Abstract: A base-free catalytic system for the aerobic oxidation of 5-hydroxymethyl-2-furfural was exploited byThe Pt nanocatalysts were well-dispersed and highly active for the base-free oxidation of 5-hydroxymethyl

Keywords： aerobic oxidation     base-free     5-hydroxymethyl-2-furfural     Pt nanoparticle     thermoresponsive block copolymer    

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Influence of the filler materials on flux-free brazing of pure aluminium (1050)

Kirsten BOBZIN, Lidong ZHAO, Thomas SCHLAEFER, Thomas WARDA,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 1,   Pages 47-51 doi: 10.1007/s11465-009-0079-9

Abstract: Al7Si, Al12Si-4%Cu, and the Al-Si-based filler material A, which was especially developed for flux-free

Keywords： aluminium     flux-free brazing     cold spraying     shear strength    

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New perspectives in free nitrous acid (FNA) uses for sustainable wastewater management

Frontiers of Environmental Science & Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11783-024-1786-5

Abstract:

● The historical development of free nitrous acid (FNA) technologies

Keywords： Free nitrous acid     Acid-tolerant ammonia oxidizer     In situ generation     Wastewater management    

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Highly selective detection of copper(II) by a “ligand-free” conjugated copolymer in nucleophilic solvents

Weixing Deng, Pengfei Sun, Quli Fan, Lei Zhang, Tsuyoshi Minami

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 1,   Pages 105-111 doi: 10.1007/s11705-019-1791-6

Abstract: cyclohexyl carbamate-attached fluorene- -phenylene copolymer (PFPNCC) and the use of PFPNCC as a “ligand-freehighly selective conjugated polymer-based chemosensors for various target analytes, albeit “ligand-free

Keywords： ligand-free     fluorescent chemosensor     copper     photo-induced electron transfer    

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Ionically Imprinting-Based Copper (Ⅱ) Label-Free Detection for Preventing Hearing Loss Article

Huan Wang, Hui Zhang, Xiaoli Zhang, Hong Chen, Ling Lu, Renjie Chai

Engineering doi: 10.1016/j.eng.2023.09.001

Abstract: solution, IIHBs recognize Cu2+ and exhibit a reflective peak change, thereby achieving label-free

Keywords： Structural color     Microfluidics Ionic imprinting     Label-free detection     Hearing loss    

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Title Author Date Type Operation

Wear mechanism of disc-brake block material for new type of drilling rig

WANG Xinhua, WANG Simin, ZHANG Siwei, WANG Deguo

Journal Article

Effects of inner sleeves on the inner frictional resistance of open-ended piles driven into sand

Janaka J. KUMARA,Yoshiaki KIKUCHI,Takashi KURASHINA,Takahiro YAJIMA

Journal Article

Calculating frictional force with considering material microstructure and potential on contact surfaces

XU Zhongming, HUANG Ping

Journal Article

Elastoplastic frictional contact problem study on interference fits of compressor

ZHANG Hongwu, WU Changhua, LIAO Aihua

Journal Article

The strength–dilatancy characteristics embraced in hypoplasticity

Zhongzhi FU, Sihong LIU, Zijian WANG

Journal Article

Cell-free systems in the new age of synthetic biology

Fernando Villarreal,Cheemeng Tan

Journal Article

Carbonation of Chrysotile under Subduction Conditions

Mihye Kong, Yongjae Lee

Journal Article

Recent advances in cycloaddition of CO with epoxides: halogen-free catalysis and mechanistic insights

Journal Article

Hollow carbon spheres and their noble metal-free hybrids in catalysis

Journal Article

Decontamination of Cr(VI) facilitated formation of persistent free radicals on rice husk derived biochar

Kaikai Zhang, Peng Sun, Yanrong Zhang

Journal Article

Thermoresponsive block copolymer supported Pt nanocatalysts for base-free aerobic oxidation of 5-hydroxymethyl

Journal Article

Influence of the filler materials on flux-free brazing of pure aluminium (1050)

Kirsten BOBZIN, Lidong ZHAO, Thomas SCHLAEFER, Thomas WARDA,

Journal Article

New perspectives in free nitrous acid (FNA) uses for sustainable wastewater management

Journal Article

Highly selective detection of copper(II) by a “ligand-free” conjugated copolymer in nucleophilic solvents

Weixing Deng, Pengfei Sun, Quli Fan, Lei Zhang, Tsuyoshi Minami

Journal Article

Ionically Imprinting-Based Copper (Ⅱ) Label-Free Detection for Preventing Hearing Loss

Huan Wang, Hui Zhang, Xiaoli Zhang, Hong Chen, Ling Lu, Renjie Chai

Journal Article