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A novel algorithm for frequency dependent modeling of ferrite ring and its optimum design to study VFTO

Mehrdad MAJIDI, Hamid JAVADI, Moein MANBACHI

Frontiers in Energy 2014, Volume 8, Issue 1,   Pages 90-100 doi: 10.1007/s11708-013-0286-2

Abstract: In addition, the application of ferrite rings for suppressing VFTOs is assessed thoroughly.The main advantage of this paper is its new proposed algorithm according to the ferrite ring frequencyThis paper examines the effects of three compositions of the ferrite ring on VFTO suppression.Moreover, it estimates the dimension of the ferrite ring based on the SF6 gas insulation withstand andFurthermore, it gains VFTO attenuated percentages due to the installation of the ferrite ring in different

Keywords： comsol multiphysics     EMTP-RV     ferrite ring     gas insulated substations (GIS)     transient over-voltage     insulation    

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Activated carbon induced oxygen vacancies-engineered nickel ferrite with enhanced conductivity for supercapacitor

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12,   Pages 2088-2100 doi: 10.1007/s11705-023-2352-6

Abstract: Activated carbon induced oxygen vacancies-engineered nickel ferrite with enhanced conductivity for supercapacitor

Keywords： nickel ferrite conductivity     carbon oxygen vacancies    

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Frequencies of circular plate with concentric ring and elastic edge support

Lokavarapu Bhaskara RAO,Chellapilla Kameswara RAO

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 2,   Pages 168-176 doi: 10.1007/s11465-014-0299-5

Abstract: the flexural vibrations of circular plates having elastic edge conditions along with rigid concentric ringdifferent sets of values of elastic rotational and translation restraints and the radius of internal rigid ringThe effects of rotational and linear restraints and the radius of the rigid ring support on the vibrationparameter presented in this paper for varying values of restraint parameters and the radius of the rigid ring

Keywords： circular plate     frequency     elastic edge     rigid ring     mode switching    

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Fundamental buckling of circular plates with elastically restrained edges and resting on concentric rigid ring

Lokavarapu Bhaskara Rao, Chellapilla Kameswara Rao

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 3,   Pages 291-297 doi: 10.1007/s11465-013-0255-9

Abstract: work presents the existence of buckling mode switching with respect to the radius of concentric rigid ringIn general, the plate may buckle in an axisymmetric mode but when the radius of the ring support becomesThe optimum radius of the concentric rigid ring support for maximum buckling load is also determined.Introducing internal rigid ring support, when placed at an optimal position increases the elastic buckling

Keywords： buckling     circular plate     elastically restrained edge     rigid ring support     mode switching    

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Study on Finite Element Method for Calculation of Stress on External Ring of One-way Clutch

Luo Yixin,Wu Bo

Strategic Study of CAE 2004, Volume 6, Issue 9,   Pages 56-59

Abstract:

At present there is no appropriate method for calculation of stress on external ring of a one-wayIn this paper, according to characteristics of the external ring, the method of finite element analyaisfactors which have influence on computational accuracy have been studied, and the stress on external ringanalyais is really an attractive method for the calculation of stress on parts similar to external ring

Keywords： clutch     external ring     stress     finite element    

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Intelligent algorithm for optimal meter placement and bus voltage estimation in ring main distribution

L. RAMESH, N. CHAKRABORTY, S. P. CHOWDHURY

Frontiers in Energy 2012, Volume 6, Issue 1,   Pages 47-56 doi: 10.1007/s11708-011-0159-5

Abstract: The advancement in power distribution system poses a great challenge to power engineering researchers on how to best monitor and estimate the state of the distribution network. This paper is executed in two stage processes. The first stage is to identify the optimal location for installation of monitoring instrument with minimal investment cost. The second stage is to estimate the bus voltage magnitude, where real time measurement is conducted and measured through identified meter location which is more essential for decision making in distribution supervisory control and data acquisition system (DSCADA). The hybrid intelligent technique is applied to execute the above two algorithms. The algorithms are tested with institute of electrical and electronics engineers (IEEE) and Tamil Nadu electricity board (TNEB) benchmark systems. The simulated results proves that the swarm tuned artificial neural network (ANN) estimator is best suited for accurate estimation of voltage with different noise levels.

Keywords： artificial intelligence     power distribution control     state estimation    

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A mini-review of ferrites-based photocatalyst on application of hydrogen production

Frontiers in Energy 2021, Volume 15, Issue 3,   Pages 621-630 doi: 10.1007/s11708-021-0761-0

Abstract: and ZnFe2O4/CdS composite are used to show the efficient heterojunction in a ferrite/ferrite composite and the ability of resistance to photo-corrosion, respectively.

Keywords： photocatalyst     spinel-ferrite     composite     photocatalytic hydrogen production    

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Contact Pressure and Fatigue Life Prediction of Kiln Rolling Ring Under Intermittent Contact

Shi Yu,Xiao Yougang,Lei Xianming

Strategic Study of CAE 2006, Volume 8, Issue 7,   Pages 54-57

Abstract:

The mathematical models of contact pressure distribution between rolling ring and shell under intermittentnominal stress method and local stress-strain method, the fatigue life prediction model of rolling ringThe results show that the fatigue life can be improved greatly if the rolling ring load can be controlledThe support angle 30° of rolling ring is unreasonable.There exits an optimal angle which will enhance rolling ring life to the utmost.

Keywords： rolling ring     contact pressure     support angle     fatigue life    

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Preparation and properties of hollow fibre nanofiltration membrane with continuous coffee-ring structure

Xiuzhen Wei, Xufeng Xu, Yi Chen, Qian Zhang, Lu Liu, Ruiyuan Yang, Jinyuan Chen, Bosheng Lv

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 2,   Pages 351-362 doi: 10.1007/s11705-020-1943-8

Abstract: Polyamide (PA) hollow fibre composite nanofiltration (NF) membranes with a coffee-ring structure andThe presentation of the coffee-ring structure was attributed to the heterogeneous, finely dispersed multiphase

Keywords： GO     PA     interfacial polymerization     hollow fibre NF membrane    

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The negative ring demolition and tunnel refitting technique of large diameter tube

Zhai Zhiguo,Huang xuejun,Yang Zhiyong

Strategic Study of CAE 2010, Volume 12, Issue 12,   Pages 83-88

Abstract:

Through introducing the construction method of negative ring demolitionreplacement technique of Beijing Rail Transit Line 2 bid section in detail, the experience of negative ring

Keywords： big diameter shield     negative ring     demolition     tunnel reconstruction    

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An Approximate Analytical Method for a Slot Ring Radome Article

Kang Luo, Jin Meng, Jiangfeng Han, Danni Zhu

Engineering 2023, Volume 30, Issue 11,   Pages 75-82 doi: 10.1016/j.eng.2023.07.015

Abstract: an in-band and out-of-band microwave wireless power-transmission characteristic analysis of a slot ringThe main contribution of this paper is that, in the approximate analysis of the ring radome, a unifiedthe corresponding 60 × 60 linear equations yields the electric current distribution along the ringThe magnetic current along the complementary slot ring is obtained by duality.An example of a slot ring biplanar symmetric hybrid radome is used to verify the accuracy and efficiency

Keywords： Approximate analytical     Ring     Radome     Kirchhoff-type circuit    

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Insight into fluorescence properties of 14 selected toxic single-ring aromatic compounds in water: Experimental

Muhammad Farooq Saleem Khan, Jing Wu, Cheng Cheng, Mona Akbar, Chuanyang Liu, Bo Liu, Jian Shen, Yu Xin

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 3, doi: 10.1007/s11783-020-1219-z

Abstract: The p-electron system inside aromatic ring contributes to the fluorophore region.Various single-ring aromatic compounds in water sources are of great concern due to its hazardous impactstudy provides a detailed insight into the fluorescence properties of the 14 selected toxic single-ringThe lone pair of electrons at amide substituent serves as a p-electron contributor into the aromatic ring

Keywords： Fluorescence     Photophysical properties     Effect of the substituent     Toxic aromatic compounds    

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Temperature field simulation of laser homogenizing equipment

Juanjuan WANG, Yunshan WANG, Fudong ZHU

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 1,   Pages 49-52 doi: 10.1007/s11465-009-0005-1

Abstract: The laser homogenizing equipment was devised using the ring scanning principle.A laser scanning ring facula is obtained when the laser beam goes through the equipment’s optical systemThe scanning ring facula’s mathematic model is established based on the temperature field’s superposingThe ring facula’s light intensity distribution and temperature distribution characteristics are achievedThe uniform hardness layer and better process quality can be attained using the ring facula optimized

Keywords： laser homogenizing technology     laser scanning ring facula     temperature field    

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A “Sequential Design of Simulations” approach for exploiting and calibrating discrete element simulations of cohesive powders

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6,   Pages 874-885 doi: 10.1007/s11705-021-2131-1

Abstract: The flow behaviours of cohesive particles in the ring shear test were simulated and examined using discreteresponse surface designs were validated and compared with shear stresses measured from the Schulze ring

Keywords： discrete element method     cohesive materials     parameter calibration     ring shear cell     design of experiments    

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δ-TRIP steel：Physical and mechanical metallurgy

Yi Hongliang,Chen Peng,Wang Guodong and Ma Mingtu

Strategic Study of CAE 2014, Volume 16, Issue 2,   Pages 18-30

Abstract:

δ- transformation induced plasticity（TRIP） steel has performed high strength combined with excellent ductility，which satisfy the requirements for the third generation advance steels for automotive application. In addition，it could to be spot welded. It’s high potential to be industrialized for both manufacture and automotive application. The development of δ-TRIP，microstructure and mechanical properties，transformation and microstructure evolution，strength and toughness mechanism will be reviewed. The process and physical metallurgy for resistance spot welding will be discussed as well.

Keywords： TRIP- steel     δ- ferrite     bainitic transformation     microstructural evolution     mechanical properties    

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Title Author Date Type Operation

A novel algorithm for frequency dependent modeling of ferrite ring and its optimum design to study VFTO

Mehrdad MAJIDI, Hamid JAVADI, Moein MANBACHI

Journal Article

Activated carbon induced oxygen vacancies-engineered nickel ferrite with enhanced conductivity for supercapacitor

Journal Article

Frequencies of circular plate with concentric ring and elastic edge support

Lokavarapu Bhaskara RAO,Chellapilla Kameswara RAO

Journal Article

Fundamental buckling of circular plates with elastically restrained edges and resting on concentric rigid ring

Lokavarapu Bhaskara Rao, Chellapilla Kameswara Rao

Journal Article

Study on Finite Element Method for Calculation of Stress on External Ring of One-way Clutch

Luo Yixin,Wu Bo

Journal Article

Intelligent algorithm for optimal meter placement and bus voltage estimation in ring main distribution

L. RAMESH, N. CHAKRABORTY, S. P. CHOWDHURY

Journal Article

A mini-review of ferrites-based photocatalyst on application of hydrogen production

Journal Article

Contact Pressure and Fatigue Life Prediction of Kiln Rolling Ring Under Intermittent Contact

Shi Yu,Xiao Yougang,Lei Xianming

Journal Article

Preparation and properties of hollow fibre nanofiltration membrane with continuous coffee-ring structure

Xiuzhen Wei, Xufeng Xu, Yi Chen, Qian Zhang, Lu Liu, Ruiyuan Yang, Jinyuan Chen, Bosheng Lv

Journal Article

The negative ring demolition and tunnel refitting technique of large diameter tube

Zhai Zhiguo,Huang xuejun,Yang Zhiyong

Journal Article

An Approximate Analytical Method for a Slot Ring Radome

Kang Luo, Jin Meng, Jiangfeng Han, Danni Zhu

Journal Article

Insight into fluorescence properties of 14 selected toxic single-ring aromatic compounds in water: Experimental

Muhammad Farooq Saleem Khan, Jing Wu, Cheng Cheng, Mona Akbar, Chuanyang Liu, Bo Liu, Jian Shen, Yu Xin

Journal Article

Temperature field simulation of laser homogenizing equipment

Juanjuan WANG, Yunshan WANG, Fudong ZHU

Journal Article

A “Sequential Design of Simulations” approach for exploiting and calibrating discrete element simulations of cohesive powders

Journal Article

δ-TRIP steel：Physical and mechanical metallurgy

Yi Hongliang,Chen Peng,Wang Guodong and Ma Mingtu

Journal Article