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Tracing the impact of stack configuration on interface resistances in reverse electrodialysis by in situ electrochemical impedance spectroscopy

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 4, doi: 10.1007/s11783-021-1480-9

Abstract:

• RED performance and stack resistance were studied by EIS and LSV.

Keywords： Reverse electrodialysis Electrochemical impedance spectroscopy Concentration polarization Spacer shadoweffect

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LDL adsorbent with dendrimer PAMAM as spacer

YUAN Yi, WANG Yanming, YU Yaoting

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 4, Pages 434-438 doi: 10.1007/s11705-008-0084-2

Abstract: To study the spacer effect of low density lipoprotein (LDL) adsorbent, we linked dendrimer polyamidoamineThe result shows that the spacer with activated multi-points could efficiently improve the adsorption

Keywords： adsorption proportion adsorbent dendrimer polyamidoamine reiterative generation

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Smog Casts a Shadow on Solar Power

Jane Palmer

Engineering 2019, Volume 5, Issue 6, Pages 989-990 doi: 10.1016/j.eng.2019.10.009

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Amethod of shadowpuppet figure modeling and animation

Xiao-fang HUANG,Shou-qian SUN,Ke-jun ZHANG,Tian-ning XU,Jian-feng WU,Bin ZHU

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 5, Pages 367-379 doi: 10.1631/FITEE.1400351

Abstract: To promote the development of the intangible cultural heritage of the world, shadow play, many studieshave focused on shadow puppet modeling and interaction.Most of the shadow puppet figures are still imaginary, spread by ancients, or carved and painted by shadowThis study proposes an algorithm to transform 3D human models to 2D puppet figures for shadow puppetsExperiment proves that more realistic and attractive figures and animations of the shadow puppet can

Keywords： Shadow play Shadow puppet figure 3D human body Data processing 2D modeling

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Public key based bidirectional shadow image authentication without pixel expansion in image secret sharing Research Article

Xuehu YAN, Longlong LI, Jia CHEN, Lei SUN,publictiger@126.com

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 1, Pages 88-103 doi: 10.1631/FITEE.2200118

Abstract: generally includes shadow image detection and identification, and plays an important role in ISS.The authentication of the shadow image in the distributing (encoding) phase is also important for thethe received shadow image with his/her private key.In the decoding phase, the dealer can authenticate each received shadow image with a secret key; in addition, the dealer can losslessly decode the secret image with any k or more shadow images.

Keywords： Image secret sharing Shadow image authentication Public key Pixel expansion Lossless decoding

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Power fluctuation and power loss of wind turbines due to wind shear and tower shadow

Binrong WEN, Sha WEI, Kexiang WEI, Wenxian YANG, Zhike PENG, Fulei CHU

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 3, Pages 321-332 doi: 10.1007/s11465-017-0434-1

Abstract: This study investigates the effects of wind shear and tower shadow on power output in terms of powerFirst, wind speed models, particularly the wind shear model and the tower shadow model, are describedThe widely accepted tower shadow model is modified in view of the cone-shaped towers of modern large-scalePower fluctuation and power loss due to wind shear and tower shadow are analyzed by performing theoreticalResults indicate that power fluctuation is mainly caused by tower shadow, whereas power loss is primarily

Keywords： wind turbine wind shear tower shadow power fluctuation power loss

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Shadow obstacle model for realistic corner-turning behavior in crowd simulation

Gao-qi HE,Yi JIN,Qi CHEN,Zhen LIU,Wen-hui YUE,Xing-jian LU

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 3, Pages 200-211 doi: 10.1631/FITEE.1500253

Abstract: This paper describes a novel model known as the shadow obstacle model to generate a realistic corner-turning

Keywords： Corner-turning behavior Crowd simulation Safety awareness Rule-based model

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Analysis of effect of different construction methods of piles on the end effect on skin friction of piles

ZHOU Hongbo, CHEN Zhuchang

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 4, Pages 458-463 doi: 10.1007/s11709-007-0062-7

Abstract: Based on the comparative analysis of end effect on skin friction of displacement-pile (driven pile),the end effect on skin friction of bored pile is studied.The end effect on skin friction between driven pile and bored pile is different and the end effect onThe concept of additional mud cake formed by the effect of cushion at the bottom of borehole during pouringconcrete is introduced to explain the mechanism of end effect on skin friction of the bored pile.

Keywords： distance different concept additional bottom

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A review on different theoretical models of electrocaloric effect for refrigeration

Frontiers in Energy 2023, Volume 17, Issue 4, Pages 478-503 doi: 10.1007/s11708-023-0884-6

Abstract: The performance parameters for characterizing the electrocaloric effect are isothermal entropy changeThis paper reviews the electrocaloric effect of ferroelectric materials based on different theoreticalsimulation, and finite element analysis) to explain the basic theory of calculating the electrocaloric effectThen, it comprehensively reviews the recent progress of these methods in regulating the electrocaloric effectand the generation mechanism of the electrocaloric effect.

Keywords： electrocaloric effect effective Hamiltonian phase-field modeling different theoretical models

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A new miniaturized engine based on thermomagnetic effect of magnetic fluids

Lujun ZHOU, Yimin XUAN, Qiang LI, Wenlei LIAN

Frontiers in Energy 2009, Volume 3, Issue 2, Pages 160-166 doi: 10.1007/s11708-009-0018-9

Abstract: NdFeB magnet, a kerosene-based magnetic fluid and a rotor, is proposed based on the thermomagnetic effect

Keywords： magnetic fluid thermomagnetic effect engine

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The cooperation effect of Ni and Pt in the hydrogenation of acetic acid

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 3, Pages 397-407 doi: 10.1007/s11705-021-2076-4

Abstract: The catalytic hydrogenation of carboxylic acid to alcohols is one of the important strategies for the conversion of biomass. Herein, a series of Ni-doped PtSn catalysts were prepared, characterized and studied in the hydrogenation of acetic acid. The Ni dopant has a strong interaction with Pt, which promotes the hydrogen adsorption, providing an activated hydrogen-rich environment for the hydrogenation. Meanwhile, the presence of Ni also improves the Pt dispersion, giving more accessible active sites for hydrogen activation. The cooperation of Pt and Ni significantly promotes the catalytic activity of the hydrogenation of acetic acid to ethanol. As a result, the catalyst with 0.1% Ni exhibits the best reaction activity, and its space time yield is twice as that of the PtSn/SiO₂ catalyst. It provides a meaningful instruction on the catalyst design for the carboxylic acid hydrogenation.

Keywords： acetic acid ethanol hydrogenation Pt Ni cooperation effect

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Direct energy rebound effect for road transportation in China

Frontiers of Engineering Management Pages 597-611 doi: 10.1007/s42524-023-0276-y

Abstract: these objectives may, in part or in entirety, be offset by the phenomenon known as the energy rebound effectassociated with road passenger transportation and road freight transportation represent a partial rebound effect, falling short of reaching the magnitude of a counterproductive backfire effect.

Keywords： road transportation direct energy rebound effect asymmetric price effects panel data model

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Photoaging mechanism of microplastics: a perspective on the effect of dissolved organic matter in natural

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 11, doi: 10.1007/s11783-023-1743-8

Abstract:

● Microplastics (MPs) undergo photoaging in natural water under light irradiation.

Keywords： Microplastics Photoaging Dissolved organic matter ROS generation

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Modeling analysis on solar steam generator employed in multi-effect distillation (MED) system

Zhaorui ZHAO, Bao YANG, Ziwen XING

Frontiers in Energy 2019, Volume 13, Issue 1, Pages 193-203 doi: 10.1007/s11708-019-0608-0

Abstract: analysis has also been conducted to assess the performance and operating conditions of the multiple effect

Keywords： solar energy steam generating multi-effect desalination

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Research on the flotation of kaolinite using a series of dodecyl tertiary amines

Cao Xuefeng,Liu Changmiao, Hu Yuehua

Strategic Study of CAE 2011, Volume 13, Issue 1, Pages 93-97

Abstract:

The flotation performances of four tertiary amines (DRN, DEN, DPN and DBN) on kaolinite were studied in this paper. All the four tertiary amines show very good flotation effects on kaolinite, and DEN does the best, with the highest flotation recovery of 92 %. In the acid pH scale, four tertiary can float kaolinite well because their cationics absorb onto the surface of kaolinite by electrostatic force; with the increasing of pH, the content of cationics was decreased to result in the lower flotation recovery. On the basis of Zeta potential, the surface of kaolinite is mainly electro-negative in the whole pH region, and its Zeta potential is remarkable increased after kaolinite was affected by four tertiary amines. Both the results of FT-IR spectra and Zeta potential show that four tertiary amines are absorbed onto the surface of kaolinite by electrostatic force. The flotation differences of four tertiary amines are due to the electronic effects and space steric effects of the substituents belonging to N atom in the amine molecule.

Keywords： tertiary amine kaolinite flotation electrostatic effect electronic effect space steric effect