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Differential coupling contributes to synchronization via a capacitor connection between chaotic circuits Regular Papers

Yu-meng XU, Zhao YAO, Aatef HOBINY, Jun MA

Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 4,   Pages 571-583 doi: 10.1631/FITEE.1800499

Abstract: In this paper, capacitor coupling is applied between two Pikovsk-Rabinovich (PR) circuits, and electricfield coupling explains the potential mechanism for differential coupling.Furthermore, by applying appropriate intensity for the coupling capacitor, synchronization is also reachedand the energy flow across the coupling capacitor is helpful in regulating the dynamical behaviors ofThe capacitor coupling can avoid energy consumption for the case with resistor coupling, and it can also

Keywords: Synchronization     Voltage coupling     Chaotic circuit     Capacitor coupling    

NiCo2O4@quinone-rich N–C core–shell nanowires as composite electrode for electric double layer capacitor

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 4,   Pages 373-386 doi: 10.1007/s11705-022-2223-6

Abstract: O4 nanowires, and the obtained composite was used as electrode for electric double layer capacitorThe assembled symmetric electric double layer capacitor achieved a high energy density of 6.55 mW∙h∙cmThe assembled symmetric capacitor exhibited a capacitance retention of 88.96% after 10000 charge/discharge

Keywords: NiCo2O4 nanowires     core−shell structure     quinone-rich     electric double layer capacitor    

Microdamage study of granite under thermomechanical coupling based on the particle flow code

Frontiers of Structural and Civil Engineering   Pages 1413-1427 doi: 10.1007/s11709-023-0953-2

Abstract: The thermomechanical coupling of rocks refers to the interaction between the mechanical and thermodynamicThe study of this coupling interaction is essential for understanding the mechanical and thermodynamicA series of numerical thermomechanical coupling tests are then conducted to calibrate the micro-parameters

Keywords: thermomechanical coupling effect     granite     improved linear parallel bond model     thermal property     particle    

Simulation of steel beam under ceiling jet based on a wind–fire–structure coupling model

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 1,   Pages 78-98 doi: 10.1007/s11709-022-0936-8

Abstract: Instead of applying the concept of adiabatic surface temperature (AST) to achieve fluid–structure coupling

Keywords: CFD–FEM coupling     steel beam     wind     ceiling jet     numerical heat transfer    

Comparison of optimal capacitor placement methods in radial distribution system with load growth and

Veera Venkata Satya Naryana MURTY, Ashwani KUMAR

Frontiers in Energy 2013, Volume 7, Issue 2,   Pages 197-213 doi: 10.1007/s11708-013-0249-7

Abstract: radial distribution system (RDS) based on the real and reactive combined loss sensitivity index, as capacitor

Keywords: load growth     load models     reactive power compensation     radial distribution system     power loss index (PLI)     power loss sensitivity (PLS)     index vector (IV)    

catalysts derived from zeolitic imidazolate framework@MXene composites for efficient oxidative self-coupling

Frontiers of Chemical Science and Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11705-023-2378-9

Abstract: The catalytic efficiency of the catalyst is tested for the self-coupling of 4-methoxybenzylamine to produce

Keywords: MXene     sacrificial template     oxidative self-coupling     Co nanoparticles     imine    

Effect of alkyl nitrite decomposition on catalytic performance of CO coupling reaction over supported

Zhenhua LI, Weihan WANG, Dongxue YIN, Jing LV, Xinbin MA

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 4,   Pages 410-414 doi: 10.1007/s11705-012-1213-5

Abstract: The syntheses of dimethyl oxalate (DMO) and diethyl oxalate (DEO) by CO coupling reaction in gaseous

Keywords: palladium     CO coupling     dialkyl oxalate     alkyl nitrite     decomposition    

Thermodynamic and economic analyses of a coal and biomass indirect coupling power generation system

Buqing YE, Rui ZHANG, Jin CAO, Bingquan SHI, Xun ZHOU, Dong LIU

Frontiers in Energy 2020, Volume 14, Issue 3,   Pages 590-606 doi: 10.1007/s11708-020-0809-6

Abstract: The coal and biomass coupling power generation technology is considered as a promising technology forIn this paper, a novel coal and biomass indirect coupling system is proposed based on the technologyFor the sake of comparison, a coal and biomass direct coupling system is also introduced based on theThe process of the direct and the indirect coupling system is simulated.worse, but the economic performance is better than that of the direct coupling system.

Keywords: biomass     indirect coupling system     process simulation     thermodynamic analysis     economic analysis    

Enhancing the aromatic selectivity of cyclohexane aromatization by CO2 coupling

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11,   Pages 1801-1808 doi: 10.1007/s11705-023-2325-9

Abstract: Improving the aromatic selectivity in the alkane aromatization process is of great importance for its practical utilization but challenge to make because the high H/C ratio of alkanes would lead to a serious hydrogen transfer process and a large amount of light alkanes. Herein, CO2 is introduced into the cyclohexane conversion process on the HZSM-5 zeolite, which can improve the aromatic selectivity. By optimizing the reaction conditions, an improved aromatic (benzene, toluene, xylene, and C9+) selectivity of 48.2% can be obtained at the conditions of 2.7 MPa (CO2), 450 °C, and 1.7 h−1, which is better than that without CO2 (aromatic selectivity = 43.2%). In situ transmission Fourier transform infrared spectroscopy spectra illustrate that many oxygenated chemical intermediates (e.g., carboxylic acid, anhydride, unsaturated aldehydes/ketones or ketene) would be formed during the cyclohexane conversion process in the presence of CO2. 13C isotope labeling experimental results demonstrate that CO2 can enter into the aromatics through the formation of oxygenated chemical intermediates and thereby improve the aromatic selectivity. This study may open a green, economic, and promising way to improve the aromatic selectivity for alkane aromatization process.

Keywords: aromatics     carbon dioxide     aromatization     coupling reaction     ZSM-5 zeolite    

Mild and highly regioselective synthesis of biaryl acids via Rh(I)-catalyzed cross-dehydrogenative coupling

Yun Liu, Youquan Zhu, Chaojun Li

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 1,   Pages 3-8 doi: 10.1007/s11705-017-1693-4

Abstract: A mild and efficient synthesis for the biaryl acids via rhodium-catalyzed cross-dehydrogenative coupling

Keywords: biaryl acids     cross-dehydrogenative coupling     rhodium-catalyzed    

The Development of World Tantalum Powder Technology

He Jilin

Strategic Study of CAE 2001, Volume 3, Issue 12,   Pages 85-89

Abstract:

This article introduces the technology development of capacitor grade tantalum powders including highimpurity content and improve the physical properties of tantalum powder so as to meet the requirement of capacitor

Keywords: tantalum powder     tantalum capacitor     specific capacitance     sodium reduction of potassium fluotantalate    

Modeling of specific structure crystallization coupling with dissolution

Yuanhui JI, Hongliang QIAN, Chang LIU, Xiaohua LU, Xin FENG, Xiaoyan JI,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 1,   Pages 52-56 doi: 10.1007/s11705-009-0301-7

Abstract: In this paper, the research framework for specific structure crystallization modeling has been proposed in which four steps are required in order to investigate the rigorous crystallization modeling by thermodynamics. The first is the activity coefficient model of the solution, the second is Solid-Liquid equilibrium, the third and fourth are the dissolution and crystallization kinetics modeling, respectively. Our investigations show that the mechanisms of complex structure formation and microphase transition can be analyzed by combining the dissolution and crystallization kinetics modeling. Moreover, the formation mechanism of the porous KCl has been analyzed, which may provide a reference for the porous structure formation in the advanced material synthesis.

Keywords: structure crystallization     activity coefficient     reference     KCl     dissolution    

A novel structural modification to eliminate the early coupling between bending and torsional mode shapes

Nazim Abdul NARIMAN

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 2,   Pages 131-142 doi: 10.1007/s11709-016-0376-4

Abstract: In this paper, a novel structural modification approach has been adopted to eliminate the early couplingFurthermore, the coupling between the vertical and torsional mode shapes has been removed to larger natural

Keywords: aeroelastic instability     structural damping     flutter wind speed     bending stiffness     torsional stiffness    

Study on System Coupling Interaction of Large-Scale Construction Companies Programme Contracting and

Feng Guo,Tian Huang

Frontiers of Engineering Management 2015, Volume 2, Issue 2,   Pages 137-140 doi: 10.15302/J-FEM-2015022

Abstract: This paper is based on the system coupling analysis of large-scale construction enterprises and construction

Keywords: programme contracting     firm growth     coupling interaction     system     large construction companies    

Erratum to: Bending and vibration of a discontinuous beam with a curvic coupling under different axial

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0709-z

Title Author Date Type Operation

Differential coupling contributes to synchronization via a capacitor connection between chaotic circuits

Yu-meng XU, Zhao YAO, Aatef HOBINY, Jun MA

Journal Article

NiCo2O4@quinone-rich N–C core–shell nanowires as composite electrode for electric double layer capacitor

Journal Article

Microdamage study of granite under thermomechanical coupling based on the particle flow code

Journal Article

Simulation of steel beam under ceiling jet based on a wind–fire–structure coupling model

Journal Article

Comparison of optimal capacitor placement methods in radial distribution system with load growth and

Veera Venkata Satya Naryana MURTY, Ashwani KUMAR

Journal Article

catalysts derived from zeolitic imidazolate framework@MXene composites for efficient oxidative self-coupling

Journal Article

Effect of alkyl nitrite decomposition on catalytic performance of CO coupling reaction over supported

Zhenhua LI, Weihan WANG, Dongxue YIN, Jing LV, Xinbin MA

Journal Article

Thermodynamic and economic analyses of a coal and biomass indirect coupling power generation system

Buqing YE, Rui ZHANG, Jin CAO, Bingquan SHI, Xun ZHOU, Dong LIU

Journal Article

Enhancing the aromatic selectivity of cyclohexane aromatization by CO2 coupling

Journal Article

Mild and highly regioselective synthesis of biaryl acids via Rh(I)-catalyzed cross-dehydrogenative coupling

Yun Liu, Youquan Zhu, Chaojun Li

Journal Article

The Development of World Tantalum Powder Technology

He Jilin

Journal Article

Modeling of specific structure crystallization coupling with dissolution

Yuanhui JI, Hongliang QIAN, Chang LIU, Xiaohua LU, Xin FENG, Xiaoyan JI,

Journal Article

A novel structural modification to eliminate the early coupling between bending and torsional mode shapes

Nazim Abdul NARIMAN

Journal Article

Study on System Coupling Interaction of Large-Scale Construction Companies Programme Contracting and

Feng Guo,Tian Huang

Journal Article

Erratum to: Bending and vibration of a discontinuous beam with a curvic coupling under different axial

Journal Article