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Formation mechanism and modeling of surface waviness in incremental sheet forming

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0679-1

Abstract: surface quality has always been a challenge for incremental sheet forming (ISF), whereas the generation mechanismIn this paper, the formation mechanism and the prediction of waviness are both investigated through experimentsengineering application, a theoretical model for waviness height is proposed based on the generation mechanismThis work is favorable for the perfection of formation mechanism and control of surface quality in ISF

Keywords： surface waviness     incremental sheet forming     numerical simulation     formation mechanism     deformation history    

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The formation mechanism and the influence factor of residual stress in machining

Zhaoxu QI,Bin LI,Liangshan XIONG

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 3,   Pages 265-269 doi: 10.1007/s11465-014-0311-0

Abstract: The paper presents a method of theoretical analysis in order to explicate the formation mechanism ofAnd these influences are explained from the perspective of formation mechanism of residual stress in

Keywords： residual stress     analytical model     strain     plastic     cutting parameter    

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Subsurface damage pattern and formation mechanism of monocrystalline -GaO in grinding process

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0677-3

Abstract: However, the deformation mechanism in ultraprecision machining has not yet been revealed.The aim of this study is to investigate the damage pattern and formation mechanism of monocrystallinemodels for grinding process were established on the basis of the grinding principle, revealing the mechanismThe formation of nanocrystals and amorphous phase was related to the grinding conditions and material

Keywords： monocrystalline beta-phase gallium oxide     grinding process     subsurface damage     nanocrystals     amorphous phase    

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Reduced kinetic mechanism of -heptane oxidation in modeling polycyclic aromatic hydrocarbon formation

ZHONG Beijing, XI Jun

Frontiers in Energy 2008, Volume 2, Issue 3,   Pages 326-332 doi: 10.1007/s11708-008-0047-9

Abstract: A reduced mechanism, which could couple with the multidimensional computational fluid dynamics code forof a reacting flow, was developed for chemical kinetic modeling of polycyclic aromatic hydrocarbon formationmechanism that includes only 83 reactions and 56 species through sensitivity analysis.mechanism, which demonstrate that the model based on this reduced mechanism can properly describe -heptanequantitatively predict polycyclic aromatic hydrocarbon (such as benzene, naphthalene, phenanthrene and pyrene) formation

Keywords： phenanthrene     multidimensional computational     sensitivity analysis     polycyclic     mechanism    

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Impact and inhibitory mechanism of phenolic compounds on the formation of toxic Maillard reaction products

Jing TENG, Xiaoqian HU, Ningping TAO, Mingfu WANG

Frontiers of Agricultural Science and Engineering 2018, Volume 5, Issue 3,   Pages 321-329 doi: 10.15302/J-FASE-2017182

Abstract: dominant reactions occurring during thermal treatment of food, the Maillard reaction not only leads to the formationof aroma, browning color and taste compounds, but also contributes to the formation of some unpleasantIn this review, some recent studies on the impact of dietary polyphenols on the formation of acrylamidepolyphenols not only scavenge free radicals, but also react with reactive carbonyl species, thus lowering the formationsafety, and suggests some directions for further study of natural products as inhibitors against the formation

Keywords： advanced glycation end products     acrylamide     food safety     heterocyclic amine     Maillard reaction     polyphenols    

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Analysis on the technological innovation network formation and operation mechanism for the significant

Wang Mengjun,Zhang Zhensen

Strategic Study of CAE 2011, Volume 13, Issue 8,   Pages 62-66

Abstract: And the dynamic mechanism, the collaborative mechanism and the learning mechanism are discussed,which

Keywords： significant construction project     technological innovation network     formation mechanism     operation mechanism    

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Mechanism insight into the formation of HS from thiophene pyrolysis: A theoretical study

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1404-8

Abstract:

• Possible formation pathways of H2S were revealed in thiophene

Keywords： Density functional theory     Waste rubber     Thiophene     H2S     Pyrolysis    

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Hierarchical ZSM-5 zeolite with radial mesopores: Preparation, formation mechanism and application for

Darui Wang, Hongmin Sun, Wei Liu, Zhenhao Shen, Weimin Yang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 2,   Pages 248-257 doi: 10.1007/s11705-019-1853-9

Abstract: Hierarchical ZSM-5 zeolite with radial mesopores is controllably synthesized using piperidine in a NaOH solution. The piperidine molecules enter the zeolite micropores and protect the zeolite framework from extensive desilication. The areas containing fewer aluminum atoms contain fewer piperidine protectant molecules and so they dissolve first. Small amounts of mesopores are then gradually generated in areas with more aluminum atoms and more piperidine protectant. In this manner, radial mesopores are formed in the ZSM-5 zeolite with a maximal preservation of the micropores and active sites. The optimal hierarchical ZSM-5 zeolite, prepared with a molar ratio of piperidine to zeolite of 0.03, had a mesopore surface area of 136 m ·g and a solid yield of 80%. The incorporation of the radial mesopores results in micropores that are interconnected which shortened the average diffusion path length. Compared to the parent zeolite, the hierarchical ZSM-5 zeolite possesses more accessible acid sites and has a higher catalytic activity and a longer lifetime for the alkylation of benzene.

Keywords： hierarchical ZSM-5 zeolite     protective desilication     piperidine     radial mesopores     benzene alkylation    

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Fiber-reinforced composites in milling and grinding: machining bottlenecks and advanced strategies

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0680-8

Abstract: This review summarizes an up-to-date progress of the damage formation mechanisms and suppression strategiesFirst, the formation mechanisms of milling damage, including delamination, burr, and tear, are analyzedSecond, the grinding mechanisms, covering material removal mechanism, thermal mechanical behavior, surface

Keywords： milling     grinding     fiber-reinforced composites     damage formation mechanism     delamination     material removalmechanism     surface integrity     minimum quantity lubrication    

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Secondary aerosol formation in winter haze over the Beijing-Tianjin-Hebei Region, China

Dongjie Shang, Jianfei Peng, Song Guo, Zhijun Wu, Min Hu

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 2, doi: 10.1007/s11783-020-1326-x

Abstract: . • Mechanisms of secondary aerosol formation in winter haze of North China are reviewed. • Directionsin future studies of secondary aerosol formation are provided.effective control of particle pollution in the BTH region, the precise and complete secondary aerosol formationaerosol chemistry during haze pollution episodes in the BTH region, lays out the challenges in haze formation

Keywords： Secondary aerosol formation     Regional haze     Photochemical reaction     Aqueous reaction     Chemical mechanism    

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The formation and catalytic activity of silver nanoparticles in aqueous polyacrylate solutions

Jie Wang, Jianjia Liu, Xuhong Guo, Liang Yan, Stephen F. Lincoln

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 3,   Pages 432-439 doi: 10.1007/s11705-016-1584-0

Abstract: Silver nanoparticles (AgNPs) have been synthesized in the presence of polyacrylate through the reduction of silver nitrate by sodium borohydride in aqueous solution. The AgNO and polyacrylate carboxylate group concentrations were kept constant at 2.0 × 10 and 1.0 × 10 mol?L , respectively, while the ratio of [NaBH ]/[AgNO ] was varied from 1 to 100. The ultra-violet-visible plasmon resonance spectra of these solutions were found to vary with time prior to stabilizing after 27 d, consistent with changes of AgNP size and distribution within the polyacrylate ensemble occurring. These observations, together with transmission electron microscopic results, show this rearrangement to be greatest among the samples at the lower ratios of [NaBH ]/[AgNO ] used in the preparation, whereas those at the higher ratios showed a more even distribution of smaller AgNP. All ten of the AgNP samples, upon a one thousand-fold dilution, catalyze the reduction of 4-nitrophenol to 4-aminophenol in the temperature range 283.2–303.2 K with a substantial induction time being observed at the lower temperatures.

Keywords： silver nanoparticles     polyacrylates     catalysis     mechanism     sodium borohydride    

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The Formation and the Research Content and Development Prospect of Crushing Mechanism

Dong Shuge,Rao Qilin

Strategic Study of CAE 2006, Volume 8, Issue 4,   Pages 89-93

Abstract:

Crushing mechanism is an engineering basic subject which is derived from mechanism, combined withenergy-saving development of mineral resources, and the change to crushing machine's application，crushing mechanismis becoming a more and more important subject, and forming a new mechanism branch.The modem development of crushing mechanism will accelerate theory's development of crushing mechanism

Keywords： crushing mechanism     crushing theory     crushing machine    

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Formation mechanism of solid product produced from co-pyrolysis of Pingdingshan lean coal with organic

Xiangchun Liu, Jun Hu, Ruilun Xie, Bin Fang, Ping Cui

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 2,   Pages 363-372 doi: 10.1007/s11705-020-1944-7

Abstract: To reveal the formation mechanism of the solid co-pyrolysis product, changes in some physicochemicalA formation mechanism for the solid product was proposed.

Keywords： co-pyrolysis     coal     oil shale     electron spin resonance     mechanism    

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Adsorption performance and physicochemical mechanism of MnO

Xiaoyan Deng, Luxing Wang, Qihui Xiu, Ying Wang, Hong Han, Dongmei Dai, Yongji Xu, Hongtao Gao, Xien Liu

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 3,   Pages 538-551 doi: 10.1007/s11705-020-1958-1

Abstract: The surface complexation formation model was used to elucidate the physicochemical interplay in the processUnderstanding the adsorption mechanism might provide a technical basis for the procedural design of heavy

Keywords： MnO2-polyethylenimine-tannic acid composite     surface complexation formation model     Cu(II)     Cr(VI)     physicochemical mechanism    

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Top-geoherbs of traditional Chinese medicine: common trait, quality characteristics and formation

Luqi Huang, Lanping Guo, Chaoyi Ma, Wei Gao, Qingjun Yuan

Frontiers of Medicine 2011, Volume 5, Issue 2,   Pages 185-194 doi: 10.1007/s11684-011-0141-y

Abstract: historical evolution, common trait and quality characteristics of top-geoherbs, and explains the forming mechanismincluding genetic mechanism and environmental mechanism.

Keywords： top-geoherbs     common trait     quality characteristics     formation     biological mechanism    

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Title Author Date Type Operation

Formation mechanism and modeling of surface waviness in incremental sheet forming

Journal Article

The formation mechanism and the influence factor of residual stress in machining

Zhaoxu QI,Bin LI,Liangshan XIONG

Journal Article

Subsurface damage pattern and formation mechanism of monocrystalline -GaO in grinding process

Journal Article

Reduced kinetic mechanism of -heptane oxidation in modeling polycyclic aromatic hydrocarbon formation

ZHONG Beijing, XI Jun

Journal Article

Impact and inhibitory mechanism of phenolic compounds on the formation of toxic Maillard reaction products

Jing TENG, Xiaoqian HU, Ningping TAO, Mingfu WANG

Journal Article

Analysis on the technological innovation network formation and operation mechanism for the significant

Wang Mengjun,Zhang Zhensen

Journal Article

Mechanism insight into the formation of HS from thiophene pyrolysis: A theoretical study

Journal Article

Hierarchical ZSM-5 zeolite with radial mesopores: Preparation, formation mechanism and application for

Darui Wang, Hongmin Sun, Wei Liu, Zhenhao Shen, Weimin Yang

Journal Article

Fiber-reinforced composites in milling and grinding: machining bottlenecks and advanced strategies

Journal Article

Secondary aerosol formation in winter haze over the Beijing-Tianjin-Hebei Region, China

Dongjie Shang, Jianfei Peng, Song Guo, Zhijun Wu, Min Hu

Journal Article

The formation and catalytic activity of silver nanoparticles in aqueous polyacrylate solutions

Jie Wang, Jianjia Liu, Xuhong Guo, Liang Yan, Stephen F. Lincoln

Journal Article

The Formation and the Research Content and Development Prospect of Crushing Mechanism

Dong Shuge,Rao Qilin

Journal Article

Formation mechanism of solid product produced from co-pyrolysis of Pingdingshan lean coal with organic

Xiangchun Liu, Jun Hu, Ruilun Xie, Bin Fang, Ping Cui

Journal Article

Adsorption performance and physicochemical mechanism of MnO

Xiaoyan Deng, Luxing Wang, Qihui Xiu, Ying Wang, Hong Han, Dongmei Dai, Yongji Xu, Hongtao Gao, Xien Liu

Journal Article

Top-geoherbs of traditional Chinese medicine: common trait, quality characteristics and formation

Luqi Huang, Lanping Guo, Chaoyi Ma, Wei Gao, Qingjun Yuan

Journal Article