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Diffusive gradients in thin films using molecularly imprinted polymer binding gels for in situ measurements

Ying Cui, Feng Tan, Yan Wang, Suyu Ren, Jingwen Chen

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 6, doi: 10.1007/s11783-020-1290-5

Abstract: In this study, we report a novel diffusive gradient in thin films (DGT) method based on molecularly imprinted

Keywords： Diffusive gradients in thin films     Molecularly imprinted polymers     Selective uptake     Antibiotics     Passive    

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Where physics meets chemistry: Thin film deposition from reactive plasmas

Andrew Michelmore, Jason D. Whittle, James W. Bradley, Robert D. Short

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 4,   Pages 441-458 doi: 10.1007/s11705-016-1598-7

Abstract: Functionalising surfaces using polymeric thin films is an industrially important field.Thus, improving thin film deposition processes requires an understanding of both physical and chemical

Keywords： thin films     plasma physics     plasma chemistry     functionalization     polymer    

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Design and analysis of Salisbury screens and Jaumann absorbers for solar radiation absorption

Xing FANG, C. Y. ZHAO, Hua BAO

Frontiers in Energy 2018, Volume 12, Issue 1,   Pages 158-168 doi: 10.1007/s11708-018-0542-6

Abstract: To further broaden absorption bandwidth, more metal and dielectric films are taken in the structure toconducted to directly show the effect of each layer on the spectral absorptivity, and then the effect of thinfilms is well understood.

Keywords： thin films     admittance loci     solar absorber    

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Review on Alkali Element Doping in Cu(In,Ga)Se2 Thin Films and Solar Cells

Yun Sun,Shuping Lin,Wei Li,Shiqing Cheng,Yunxiang Zhang,Yiming Liu,Wei Liu

Engineering 2017, Volume 3, Issue 4,   Pages 452-459 doi: 10.1016/J.ENG.2017.04.020

Abstract: post-deposition treatment (PDT), we discuss and interpret the following issues: ① The delamination of CIGS thinfilms induced by Na incorporation facilitates CuInSe2 formation and inhibits Ga during low-temperature

Keywords： Alkali elements     Cu(In     Ga)Se2     Thin-film solar cells     Post-deposition treatment    

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Effect of anisotropic characteristics on the mechanical behavior of asphalt concrete overlay

Lingyun YOU, Zhanping YOU, Kezhen YAN

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1,   Pages 110-122 doi: 10.1007/s11709-018-0476-4

Abstract: Asphalt concrete (AC) overlays placed over old asphalt pavement have become an alternative to repairing and reinforcing pavements. The strength contributed by the AC overlay is strongly influenced by the anisotropic properties of the pavement material. This study was conducted to analyze the influence of anisotropy, modulus gradient properties, and the condition of the AC overlay and old pavement contact plane on the mechanical behaviors of AC overlays, as well as to quantify the influence of the degree of anisotropy on the mechanical behaviors of AC overlay by a sensitivity analysis (SA). The mechanical behaviors of the AC overlay were numerically obtained using the three-dimensional finite element method with the aid of ABAQUS a commercial program. Variations in the AC overlay’s modulus as a function of temperature as well as the contact state between the AC overlay and AC layer were considered. The SA is based on standardized regression coefficients method. Comparing the mechanical behavior in terms of surface deflection, stress, and strain of the anisotropy model against those corresponding to the isotropic model under static loads show that the anisotropic properties had greater effects on the mechanical behavior of the AC overlay. In addition, the maximum shear stress in the AC overlay was the most significant output parameter affected by the degree of anisotropy. Therefore, future research concerning the reinforcement and repair of pavements should consider the anisotropic properties of the pavement materials.

Keywords： asphalt concrete overlay     anisotropy     temperature gradients     modulus gradients     finite element simulation    

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Analysis of Coherent Structures in a Turbulent Boundary Layer With Pressure Gradients

Lu Lipeng,Li Zhaorui

Strategic Study of CAE 2002, Volume 4, Issue 11,   Pages 50-56

Abstract: structures in the wall region of a turbulent boundary layer with either steady or changing pressure gradientsPressure gradients have much more effect on choosing preliminary waves than on evaluating of the coherent

Keywords： coherent structures     turbulent boundary layer     pressure gradients     direct numerical simulation (DNS)    

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Ultrathin microcrystalline hydrogenated Si/Ge alloyed tandem solar cells towards full solar spectrum conversion

Yu Cao, Xinyun Zhu, Xingyu Tong, Jing Zhou, Jian Ni, Jianjun Zhang, Jinbo Pang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 6,   Pages 997-1005 doi: 10.1007/s11705-019-1906-0

Abstract: Thin film solar cells have been proved the next generation photovoltaic devices due to their low costAmong them, micro-crystalline Si and Ge based thin film solar cells have advantages of high efficiency

Keywords： thin films     solar cells     quadruple junction solar cell     amorphous silicon     silicon germanium alloy     quantum    

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Anthocyanins/chitosan films doped by nano zinc oxide for active and intelligent packaging: comparison

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 6,   Pages 704-715 doi: 10.1007/s11705-022-2270-z

Abstract: The multifunctional films was prepared by blending chitosan and nano-ZnO with purple tomato anthocyaninsThe properties of films functioned by anthocyanins source and nano-ZnO content were studied.The tensile strength, antioxidant and antibacterial effects of the chitosan films dramatically increasedEspecially, the anthocyanin and nano-ZnO promoted the antibacterial activity of films synergisticallyComposite films made from black wolfberry anthocyanins exhibited higher mechanical performance than those

Keywords： bio-based     multifunction     colorimetric indicator     active and intelligent packaging    

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Solvent-Less Vapor-Phase Fabrication of Membranes for Sustainable Separation Processes Perspective

Junjie Zhao, Karen K. Gleason

Engineering 2020, Volume 6, Issue 12,   Pages 1432-1442 doi: 10.1016/j.eng.2020.05.002

Abstract: These solvent-less vapor-phase methods are powerful in creating ultrathin selective layers for thin-film

Keywords： Membrane separation     Chemical vapor deposition     Atomic layer deposition     Molecular layer deposition     Thinfilms     Metal–organic frameworks     Polymers     Advanced manufacturing    

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Nanostructured gold films exhibiting almost complete absorption of light at visible wavelengths

Hanbin Zheng, Christine Picard, Serge Ravaine

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 2,   Pages 247-251 doi: 10.1007/s11705-018-1710-2

Abstract: The black gold films have remarkable optical behavior as they absorb more than 93% of incident lightThis new type of black films can be fabricated to a large variety of substrates, turning them to super

Keywords： nanostructuration     light absorption     coating     gold     electrodeposition     anodization    

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Photothermal-Management Agricultural Films toward Industrial Planting: Opportunities and Challenges

Song Zhang,Zhang Chen,Chuanxiang Cao,Yuanyuan Cui,Yanfeng Gao,

Engineering doi: 10.1016/j.eng.2023.06.016

Abstract: As indispensable parts of greenhouses and plant factories, agricultural covering films play a prominentPolyethylene covering films directly transmit the full solar spectrum.greenhouse, and data mining to identify key biological growth factors and thereby improve new covering filmsFinally, future challenges and directions for photothermal-management agricultural films are elaborated

Keywords： Greenhouse     Photothermal management     Passive radiative cooling     Light scattering    

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Fixturing technology and system for thin-walled parts machining: a review

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0711-5

Abstract: During the overall processing of thin-walled parts (TWPs), the guaranteed capability of the machining

Keywords： thin-walled part (TWP)     fixture     machining     fixture categories     fixture function    

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Stiction and Friction in Micro Electro Mechanical Systems

Wang Weiyuan

Strategic Study of CAE 2000, Volume 2, Issue 3,   Pages 36-41

Abstract: Coating of anti-stiction films on the surface of Si microstructures and packaging of devices under dryThe preparation technology of anti-stiction films and its problems are described.After using anti-stiction films, the stiction is fully prevented, and even the friction is apparentlyTo fabricate the films with anti-stiction and wear-resitsting ability are the key research projects in

Keywords： micro electro mechanical systems     stiction     friction     anti-stiction films     wear-resisting films    

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A measurement system for thin elastohydrodynamic lubrication films

WANG Xuefeng, GUO Feng, YANG Peiran

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 2,   Pages 193-196 doi: 10.1007/s11465-007-0032-8

Abstract: demonstrated that the presented measurement system can provide continuous measurement of lubricating filmsfrom nano to micro scales at a nano-level resolution, and can be used to investigate ultra-thin EHLfilms and tiny variations in EHL films.

Keywords： instrumentation     continuous measurement     elastohydrodynamic lubrication     ultra-thin     measurement    

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Position-varying surface roughness prediction method considering compensated acceleration in milling of thin-walled

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4,   Pages 855-867 doi: 10.1007/s11465-021-0649-z

Abstract: Machined surface roughness will affect parts’ service performance. Thus, predicting it in the machining is important to avoid rejects. Surface roughness will be affected by system position dependent vibration even under constant parameter with certain toolpath processing in the finishing. Aiming at surface roughness prediction in the machining process, this paper proposes a position-varying surface roughness prediction method based on compensated acceleration by using regression analysis. To reduce the stochastic error of measuring the machined surface profile height, the surface area is repeatedly measured three times, and Pauta criterion is adopted to eliminate abnormal points. The actual vibration state at any processing position is obtained through the single-point monitoring acceleration compensation model. Seven acceleration features are extracted, and valley, which has the highest R-square proving the effectiveness of the filtering features, is selected as the input of the prediction model by mutual information coefficients. Finally, by comparing the measured and predicted surface roughness curves, they have the same trends, with the average error of 16.28% and the minimum error of 0.16%. Moreover, the prediction curve matches and agrees well with the actual surface state, which verifies the accuracy and reliability of the model.

Keywords： surface roughness prediction     compensated acceleration     milling     thin-walled workpiece    

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Title Author Date Type Operation

Diffusive gradients in thin films using molecularly imprinted polymer binding gels for in situ measurements

Ying Cui, Feng Tan, Yan Wang, Suyu Ren, Jingwen Chen

Journal Article

Where physics meets chemistry: Thin film deposition from reactive plasmas

Andrew Michelmore, Jason D. Whittle, James W. Bradley, Robert D. Short

Journal Article

Design and analysis of Salisbury screens and Jaumann absorbers for solar radiation absorption

Xing FANG, C. Y. ZHAO, Hua BAO

Journal Article

Review on Alkali Element Doping in Cu(In,Ga)Se2 Thin Films and Solar Cells

Yun Sun,Shuping Lin,Wei Li,Shiqing Cheng,Yunxiang Zhang,Yiming Liu,Wei Liu

Journal Article

Effect of anisotropic characteristics on the mechanical behavior of asphalt concrete overlay

Lingyun YOU, Zhanping YOU, Kezhen YAN

Journal Article

Analysis of Coherent Structures in a Turbulent Boundary Layer With Pressure Gradients

Lu Lipeng,Li Zhaorui

Journal Article

Ultrathin microcrystalline hydrogenated Si/Ge alloyed tandem solar cells towards full solar spectrum conversion

Yu Cao, Xinyun Zhu, Xingyu Tong, Jing Zhou, Jian Ni, Jianjun Zhang, Jinbo Pang

Journal Article

Anthocyanins/chitosan films doped by nano zinc oxide for active and intelligent packaging: comparison

Journal Article

Solvent-Less Vapor-Phase Fabrication of Membranes for Sustainable Separation Processes

Junjie Zhao, Karen K. Gleason

Journal Article

Nanostructured gold films exhibiting almost complete absorption of light at visible wavelengths

Hanbin Zheng, Christine Picard, Serge Ravaine

Journal Article

Photothermal-Management Agricultural Films toward Industrial Planting: Opportunities and Challenges

Song Zhang,Zhang Chen,Chuanxiang Cao,Yuanyuan Cui,Yanfeng Gao,

Journal Article

Fixturing technology and system for thin-walled parts machining: a review

Journal Article

Stiction and Friction in Micro Electro Mechanical Systems

Wang Weiyuan

Journal Article

A measurement system for thin elastohydrodynamic lubrication films

WANG Xuefeng, GUO Feng, YANG Peiran

Journal Article

Position-varying surface roughness prediction method considering compensated acceleration in milling of thin-walled

Journal Article