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A two-stage parametric subspace model for efficient contrast-preserving decolorization Article

Hong-yang LU, Qie-gen LIU, Yu-hao WANG, Xiao-hua DENG

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 11,   Pages 1874-1882 doi: 10.1631/FITEE.1600017

Abstract: The RGB2GRAY conversion model is the most popular and classical tool for image decolorization.parameters in this first-order linear model with a discrete searching solver has a great potential in its conversion

Keywords： Color-to-gray conversion     Subspace modeling     Two-order polynomial model     Gradient correlation similarity    

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Determination and Division of Radiative Color Gamut in Primary-Color Method for Temperature Measurement

Wang Anquan,Cheng Xiaofang,Lu Shaosong

Strategic Study of CAE 2002, Volume 4, Issue 8,   Pages 54-57

Abstract:

The principle of primary-color method for temperature measurement is firstly introduced in this articleThe radiative color gamut is determined and divided into two components, the single-solution gamut and

Keywords： temperature measurement     primary-color method     color gamut     emissivity    

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Advances on the application of ocean color remote sensing engineering in China

Pan Delu,Bai Yan

Strategic Study of CAE 2008, Volume 10, Issue 9,   Pages 14-24

Abstract: text-align: justify;">After many years' endeavor of research and application practice, the ocean colorWith the aim of operational service, several kinds of ocean color remote sensing monitoring systems havemajor technical advances are describing, including 1) the radiative transfer principle of the ocean colorSecondly, On the foundation of technical advances, ocean color remote sensing takes effect on marineocean color remote sensing system for Chinese Surveillance Planes, great strides will take place in

Keywords： ocean color remote sensing     operational application system     Chinese ocean color satellite series     HY-1A    

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Investigations on color variations of Morpho rhetenor butterfly wing scales

Guanglan LIAO, Haibo ZUO, Xuan JIANG, Xuefeng YANG, Tielin SHI

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 4,   Pages 394-400 doi: 10.1007/s11465-012-0347-y

Abstract: presents a single-layer of scales, the microstructures of which are responsible for the brilliant blue colorThe color varies from cyan blue to yellow green and soon afterwards returns back to cyan blue when someThis research benefits our understanding of the color variation mechanisms of the wing scales, and provides

Keywords： Morpho rhetenor     microstructures     color variations     ambient medium    

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Multi-color space threshold segmentation and self-learning k-NN algorithm for surge test EUT status

Jian HUANG,Gui-xiong LIU

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 3,   Pages 311-315 doi: 10.1007/s11465-016-0376-z

Abstract: A multi-color space threshold segmentation and self-learning k-nearest neighbor algorithmFirst, color space (L*a*b*, hue saturation lightness (HSL), hue saturation value (HSV)) to segment was

Keywords： multi-color space     k-nearest neighbor algorithm (k-NN)     self-learning     surge test    

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Theoretical Study of Color Gamut of Higher Plant Leaves

Cheng Xiaofang,Dong Jinyi,Fan Xueliang,Ding Jinlei

Strategic Study of CAE 2006, Volume 8, Issue 12,   Pages 66-69

Abstract: chlorophylls and cartotenoids are the main pigments in leaves of the higher plants, which giveing the colorchlorophylls and cartotenoids obtained from their classical absorption spectrum and the law of additive colormixing, the theoretical color gamut of higher plant leaves is determined.

Keywords： higher plant     pigment     absorption spectra     chromaticity coordinate     color gamut    

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The Gray Evaluation of Road Traffic Safety Based on Trigonometry Whitening Weight (TWW) Function

Guo Yi,Zhou Qinglei,Huang Jingbao

Strategic Study of CAE 2006, Volume 8, Issue 3,   Pages 87-90

Abstract:

Based on the researches of evaluation methods about road traffic safety in China and abroad, the gray

Keywords： road traffic safety     gray evaluation     TWW function    

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Hydrogel photocatalysts for efficient energy conversion and environmental treatment

Frontiers in Energy 2021, Volume 15, Issue 3,   Pages 577-595 doi: 10.1007/s11708-021-0756-x

Abstract: Moreover, current applications of hydrogel photocatalysts in energy conversion and environmental remediation

Keywords： hydrogel     photocatalysts     energy conversion     environmental treatment    

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Reliability analysis on civil engineering project based on integrated adaptive simulation annealing and gray

Xiao-ping BAI,Ya-nan LIU

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 4,   Pages 462-471 doi: 10.1007/s11709-016-0361-y

Abstract: of analysis of the four quality influence factors in the construction engineering, a method based on gray

Keywords： civil engineering     dynamic reliability     grey relational degree     adaptive simulated annealing algorithm    

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Biological conversion pathways of sulfate reduction ammonium oxidation in anammox consortia

Zhen Bi, Deqing Wanyan, Xiang Li, Yong Huang

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 3, doi: 10.1007/s11783-019-1217-1

Abstract: AOB and AnAOB are mainly responsible for ammonium conversion.Heterotrophic sulfate reduction mainly contributed to sulfate conversion.Results obtained differed largely for the conversion mole ratios (ammonium/sulfate), and even the intermediateThus, the hypothesis of biological conversion pathways of ammonium and sulfate in anammox consortia isdifferent biomass proportions to verify the SRAO phenomena and identify possible pathways behind substrate conversion

Keywords： Anammox bacteria     Autotrophic     Biological conversion     Sulfate reducing ammonium oxidation (SRAO)    

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Sustainable conversion regenerated cellulose into cellulose oleate by sonochemistry

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 8,   Pages 1096-1108 doi: 10.1007/s11705-023-2317-9

Abstract: Derivatization has great potential for the high-value utilization of cellulose by enhancing its processability and functionality. However, due to the low reactivity of natural cellulose, it remains challenging to rapidly prepare cellulose derivatives with high degrees of substitution. The “cavitation effect” of ultrasound can reduce the particle size and crystalline index of cellulose, which provides a possible method for preparing cellulose derivatives. Herein, a feasible method was proposed for efficiently converting regenerated cellulose to cellulose oleate with the assistance of ultrasonic treatment. By adjusting the reaction conditions including ultrasonic intensity, feeding ratios of oleic acid, reaction time, and reaction solvent, a series of cellulose oleates with degrees of substitution ranging from 0.37 to 1.71 were synthesized. Additionally, the effects of different reaction conditions on the chemical structures, crystalline structures, and thermal behaviors were investigated thoroughly. Cellulose oleates with degrees of substitution exceeding 1.23 exhibited amorphous structures and thermoplasticity with glass transition temperatures at 159.8 to 172.6 °C. This study presented a sustainable and practicable method for effectively derivatizing cellulose.

Keywords： regenerated cellulose     cellulose oleate     sonochemistry     degree of substitution     thermoplasticity    

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Dynamic contribution of variable-speed wind energy conversion system in system frequency regulation

Yajvender Pal VERMA, Ashwani KUMAR

Frontiers in Energy 2012, Volume 6, Issue 2,   Pages 184-192 doi: 10.1007/s11708-012-0185-y

Abstract: Frequency regulation in a generation mix having large wind power penetration is a critical issue, as wind units isolate from the grid during disturbances with advanced power electronics controllers and reduce equivalent system inertia. Thus, it is important that wind turbines also contribute to system frequency control. This paper examines the dynamic contribution of doubly fed induction generator (DFIG)-based wind turbine in system frequency regulation. The modified inertial support scheme is proposed which helps the DFIG to provide the short term transient active power support to the grid during transients and arrests the fall in frequency. The frequency deviation is considered by the controller to provide the inertial control. An additional reference power output is used which helps the DFIG to release kinetic energy stored in rotating masses of the turbine. The optimal speed control parameters have been used for the DFIG to increases its participation in frequency control. The simulations carried out in a two-area interconnected power system demonstrate the contribution of the DFIG in load frequency control.

Keywords： doubly fed induction generator (DFIG)     load frequency control     inertial control     wind energy conversion    

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Micro/nanofluidics-enabled energy conversion and its implemented devices

Yang YANG, Jing LIU

Frontiers in Energy 2011, Volume 5, Issue 3,   Pages 270-287 doi: 10.1007/s11708-010-0126-6

Abstract: The fluids in nature serve as the most common carriers and media in the energy conversion process.Following the rapid development of microelectromechanical systems (MEMS) technology, the energy supply and conversionIn this paper, a series of micro/nanofluid-enabled energy conversion devices is reviewed based on theto the establishment of a comprehensive and systematic structure in the relationship between energy conversion

Keywords： micro/nanofluid     different energy forms     energy conversion     medium role    

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Progress in Understanding Color Maintenance in Solid-State Lighting Systems Review

Maryam Yazdan Mehr, Willem Dirk van Driel, G. Q. (Kouchi) Zhang

Engineering 2015, Volume 1, Issue 2,   Pages 170-178 doi: 10.15302/J-ENG-2015035

Abstract:

In this paper, progresses of color maintenance, also known as color shift, in solid-state lightingFirst, color shift is introduced and a few examples are given from different real-life industrial conditionsencapsulants in light-emitting diode (LED)-based products are introduced and their contributions to color

Keywords： light-emitting diode (LED)     color shift     lumen depreciation     lumen degradation    

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Conversion of polyethylene to gasoline: Influence of porosity and acidity of zeolites

Frontiers in Energy   Pages 763-774 doi: 10.1007/s11708-023-0897-1

Abstract: Zeolites are cheap and stable, but they are usually not efficient for plastic conversion at a low temperaturewere used to study the influence of porosity and acidity of zeolite on catalytic activity for plastics conversionThis study provides very useful information for designing zeolites for efficient conversion of plastics

Keywords： plastics conversion     polyethylene     zeolites     acidity     porosity    

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Title Author Date Type Operation

A two-stage parametric subspace model for efficient contrast-preserving decolorization

Hong-yang LU, Qie-gen LIU, Yu-hao WANG, Xiao-hua DENG

Journal Article

Determination and Division of Radiative Color Gamut in Primary-Color Method for Temperature Measurement

Wang Anquan,Cheng Xiaofang,Lu Shaosong

Journal Article

Advances on the application of ocean color remote sensing engineering in China

Pan Delu,Bai Yan

Journal Article

Investigations on color variations of Morpho rhetenor butterfly wing scales

Guanglan LIAO, Haibo ZUO, Xuan JIANG, Xuefeng YANG, Tielin SHI

Journal Article

Multi-color space threshold segmentation and self-learning k-NN algorithm for surge test EUT status

Jian HUANG,Gui-xiong LIU

Journal Article

Theoretical Study of Color Gamut of Higher Plant Leaves

Cheng Xiaofang,Dong Jinyi,Fan Xueliang,Ding Jinlei

Journal Article

The Gray Evaluation of Road Traffic Safety Based on Trigonometry Whitening Weight (TWW) Function

Guo Yi,Zhou Qinglei,Huang Jingbao

Journal Article

Hydrogel photocatalysts for efficient energy conversion and environmental treatment

Journal Article

Reliability analysis on civil engineering project based on integrated adaptive simulation annealing and gray

Xiao-ping BAI,Ya-nan LIU

Journal Article

Biological conversion pathways of sulfate reduction ammonium oxidation in anammox consortia

Zhen Bi, Deqing Wanyan, Xiang Li, Yong Huang

Journal Article

Sustainable conversion regenerated cellulose into cellulose oleate by sonochemistry

Journal Article

Dynamic contribution of variable-speed wind energy conversion system in system frequency regulation

Yajvender Pal VERMA, Ashwani KUMAR

Journal Article

Micro/nanofluidics-enabled energy conversion and its implemented devices

Yang YANG, Jing LIU

Journal Article

Progress in Understanding Color Maintenance in Solid-State Lighting Systems

Maryam Yazdan Mehr, Willem Dirk van Driel, G. Q. (Kouchi) Zhang

Journal Article

Conversion of polyethylene to gasoline: Influence of porosity and acidity of zeolites

Journal Article