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Sampling formulas for 2D quaternionic signals associated with various quaternion Fourier and linear canonicaltransforms Research Articles

Xiaoxiao HU, Dong CHENG, Kit Ian KOU,huxiaoxiao3650@163.com

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 3,   Pages 463-478 doi: 10.1631/FITEE.2000499

Abstract: different types of sampling formulas of quaternionic functions, which are bandlimited under various quaternionFourier and linear canonical transforms.bandlimited functions can be reconstructed from their samples as well as the samples of their derivatives and Hilberttransforms.Second, using the relationship between the two-sided quaternion Fourier transform and the linear canonical

Keywords： Quaternion Fourier transforms     Quaternion linear canonical transforms     Sampling theorem     Quaternion partialand total Hilbert transforms     Generalized quaternion partial and total Hilbert transforms     Truncation    

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The Study of an Improved Algorithm About Hilbert Energy Spectrum

Yang Jianwen,Jia Minping,Xu Feiyun,Hu Jianzhong

Strategic Study of CAE 2005, Volume 7, Issue 7,   Pages 55-59

Abstract:

The Hilbert energy spectrum's principle in HHT is analyzed in the paper; Aimed to solve the endinstantaneous spectrum figure, the cause is researched and ARMA model is introduced in the calculation of Hilbertmethods, the advanced method is proved to be able to improve the end problem effectively and optimize the Hilbert

Keywords： Hilbert transform     the distortion of end     instantaneous parameter     intrinsic mode function    

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Isomorphism analysis on generalized modules oriented to the distributed parameterized intelligent product

Shasha ZENG, Weiping PENG, Tiaoyu LEI

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 1,   Pages 12-23 doi: 10.1007/s11465-019-0555-9

Abstract: product platform (DPIPP) contains many agents of a product minimum approximate autonomous subsystem (generalizedIn this study, a new method of isomorphism analysis on generalized modules oriented to DPIPP is proposedFirst, on the basis of the bill of material partition and generalized module mining, the parameters ofSecond, similarity calculation of generalized modules is realized by improving the clustering using representativesGeneralized modules with a similar structure are combined to complete the isomorphism analysis.

Keywords： distributed parameterized intelligent product platform     generalized module     isomorphism analysis     product    

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Performance enhancement of partially shaded solar PV array using novel shade dispersion technique

Namani RAKESH,T. Venkata MADHAVARAM

Frontiers in Energy 2016, Volume 10, Issue 2,   Pages 227-239 doi: 10.1007/s11708-016-0405-y

Abstract: voltaic array (SPVA) generates a smaller amount of power than the standard rating of the panel due to the partialIn this approach, the physical location of the modules in the total cross tied (TCT) connected in thedistribution of the effect of shading over the entire array, thereby, reducing the mismatch losses caused by partial

Keywords： photovoltaic cells     mismatch loss     shading patterns     partial shading     magic square     power enhancement     globalpeaks and total cross tied (TCT)    

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Novel method of constructing generalized Hoberman sphere mechanisms based on deployment axes

Xuemin SUN, Yan-An YAO, Ruiming LI

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 1,   Pages 89-99 doi: 10.1007/s11465-019-0567-5

Abstract: This study proposes a method of constructing type II generalized angulated elements (GAEs II) HobermanThird, a flowchart of constructing the generalized Hoberman sphere mechanism on the basis of deploymentFinally, four generalized Hoberman sphere mechanisms based on a fully enclosed regular hexahedron, arithmetic

Keywords： deployable mechanism     type II generalized angulated elements     Hoberman sphere mechanism     deployment axes    

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Methanation and chemolitrophic nitrogen removal by an anaerobic membrane bioreactor coupled partial nitrification

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 6, doi: 10.1007/s11783-023-1668-2

Abstract:

● Efficient carbon methanation and nitrogen removal was achieved in AnMBR-PN/A system.

Keywords： Anaerobic membrane bioreactor     Partial nitrification/Anammox     Carbon separation     Chemolitrophic nitrogen    

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“Partial pressures” of humid air in wide pressure and temperature ranges

Zidong WANG, Hanping CHEN, Shilie WENG

Frontiers in Energy 2013, Volume 7, Issue 4,   Pages 511-517 doi: 10.1007/s11708-013-0281-7

Abstract: “Partial pressure” in humid air is a question very much concerned by scientists and no satisfactory answerThis paper proposes a novel method to obtain the “partial pressures” of the water vapor and dry air inThe results obtained by the proposed method are quite different from that obtained by Dalton’s partialOne discovery is that the “partial pressure” of the water vapor in saturated humid air equals , ratherThis paper satisfactorily answers the quest of “partial pressures” in humid air from a new perspective

Keywords： partial pressure     Dalton’s partial pressure law     humid air     saturated     unsaturated    

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Study on online monitoring method for flood discharge structure damage based on Hilbert-Huang Transform

Lian Jijian,Li Chengye,Liu Fang,Ma Bin

Strategic Study of CAE 2011, Volume 13, Issue 12,   Pages 38-44

Abstract:

In the long-term service period, many factors may lead to serious damages and deficiencies to the structure, such as complicated working conditions, inadequate investigation and design, poor management, aging of structure, etc. Therefore, it's very important to study the online monitoring method for flood discharge. According to the special advantages of HHT in instantaneous characteristics analysis and signal processing, an online monitoring method for flood discharge structure damage based on HHT is put forward in this paper. Firstly, after obtaining the HHT energy spectrum of measured responses, the energy distribution vector, defined as ηi , can be calculated. Then, because of the η i differences between undamaged and damaged situations, we determine the structure anomaly indexes and the warning threshold. Finally, having been calculating the anomaly indexes of adjacent time periods, the damage online monitoring can be realized. The results from the numerical simulation test of a guide wall demonstrate that the anomaly indexes mentioned above can accurately identify the structure damage and have anti-noise ability to some degree. However, the further research for estimating the damage location and degree need to be developed in the next period.

Keywords： flood discharge structure     Hilbert-Huang Transform     the energy distribution vector     anomaly index     warning    

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Multiscale RBF-based central high resolution schemes for simulation of generalized thermoelasticity problems

Hassan YOUSEFI, Alireza TAGHAVI KANI, Iradj MAHMOUDZADEH KANI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 2,   Pages 429-455 doi: 10.1007/s11709-018-0483-5

Abstract: This proposed method is used for simulation of generalized coupled thermoelasticity problems includingSuch reconstructions, finally, lead to the total variation bounded (TVB) feature.with that of the adaptive Kurganov-Tadmor (KT) second-order central high-resolution scheme with the total

Keywords： central high resolution schemes     RBFs     higher order accuracy     generalized thermoelasticity     multiresolution-based    

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Upper bound solution to seismic active earth pressure of submerged backfill subjected to partial drainage

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6,   Pages 1480-1493 doi: 10.1007/s11709-021-0776-y

Abstract: method to evaluate the seismic active earth pressure on a retaining wall with backfill subjected to partialThe method comprises the following steps: i) determination of the total head, ii) upper bound solutionThe determination of total head h(x,z) relies on the Fourier series expansions,The numerical results confirm the validity of the total head distribution.

Keywords： seismic active earth pressure     partial seepage flow     pore pressure     anisotropy     upper bound theorem    

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Methane partial oxidation over NiO-MgO/Ce

Piyawat PUE-ON, Vissanu MEEYOO, Thirasak RIRKSOMBOOON

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 3,   Pages 289-296 doi: 10.1007/s11705-013-1345-2

Abstract: Methane partial oxidation (MPO) is considered as an alternative method to produce hydrogen because it

Keywords： methane partial oxidation     NiO     ceria-zirconia     MgO     mixed oxide solid solution    

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Design and analysis of the gripper mechanism based on generalized parallel mechanisms with configurable

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4,   Pages 765-781 doi: 10.1007/s11465-021-0655-1

Abstract: Generalized parallel mechanisms with a configurable moving platform have become popular in the researchtranslations and two rotations plus an additional grasping motion) gripper mechanisms based on the generalized

Keywords： generalized parallel mechanism     configurable moving platform     gripper mechanism     type synthesis     kinematic    

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An approach for mechanical fault classification based on generalized discriminant analysis

LI Wei-hua, SHI Tie-lin, YANG Shu-zi

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 3,   Pages 292-298 doi: 10.1007/s11465-006-0022-2

Abstract: classification of complicated mechanical faults, an approach to multi-faults classification based on generalizedCompared with linear discriminant analysis (LDA), generalized discriminant analysis (GDA), one of nonlinear

Keywords： generalized discriminant     non-separable     abnormality     classification     multi-faults classification    

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The convexity about ultimate bearing hypersurfaces of structures

Chengxi GUO,Tingting GUO

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 4,   Pages 456-461 doi: 10.1007/s11709-016-0334-1

Abstract: All of generalized non-overload forces acted on a structure forms a convex set when ignoring the second-ordereffects (coupling effects between the generalized forces).It is true also when the Hessian matrix composed of the second-order partial derivatives on the hypersurface

Keywords： service     limit load     ultimate bearing surface     convexity     generalized force     generalized displacement     frame    

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Enhanced nutrients removal from municipal wastewater through biological phosphorus removal followed by partial

Yandong Yang,Liang Zhang,Hedong Shao,Shujun Zhang,Pengchao Gu,Yongzhen Peng

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 2, doi: 10.1007/s11783-017-0911-0

Abstract: this study, a new alternative consisting of enhanced biological phosphorus removal (EBPR) followed by partialDuring the stable period, effluent concentrations of total phosphorus and total nitrogen were 0.25 and

Keywords： Phosphorus removal     Partial nitrification     Anammox     Municipal wastewater    

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Title Author Date Type Operation

Sampling formulas for 2D quaternionic signals associated with various quaternion Fourier and linear canonicaltransforms

Xiaoxiao HU, Dong CHENG, Kit Ian KOU,huxiaoxiao3650@163.com

Journal Article

The Study of an Improved Algorithm About Hilbert Energy Spectrum

Yang Jianwen,Jia Minping,Xu Feiyun,Hu Jianzhong

Journal Article

Isomorphism analysis on generalized modules oriented to the distributed parameterized intelligent product

Shasha ZENG, Weiping PENG, Tiaoyu LEI

Journal Article

Performance enhancement of partially shaded solar PV array using novel shade dispersion technique

Namani RAKESH,T. Venkata MADHAVARAM

Journal Article

Novel method of constructing generalized Hoberman sphere mechanisms based on deployment axes

Xuemin SUN, Yan-An YAO, Ruiming LI

Journal Article

Methanation and chemolitrophic nitrogen removal by an anaerobic membrane bioreactor coupled partial nitrification

Journal Article

“Partial pressures” of humid air in wide pressure and temperature ranges

Zidong WANG, Hanping CHEN, Shilie WENG

Journal Article

Study on online monitoring method for flood discharge structure damage based on Hilbert-Huang Transform

Lian Jijian,Li Chengye,Liu Fang,Ma Bin

Journal Article

Multiscale RBF-based central high resolution schemes for simulation of generalized thermoelasticity problems

Hassan YOUSEFI, Alireza TAGHAVI KANI, Iradj MAHMOUDZADEH KANI

Journal Article

Upper bound solution to seismic active earth pressure of submerged backfill subjected to partial drainage

Journal Article

Methane partial oxidation over NiO-MgO/Ce

Piyawat PUE-ON, Vissanu MEEYOO, Thirasak RIRKSOMBOOON

Journal Article

Design and analysis of the gripper mechanism based on generalized parallel mechanisms with configurable

Journal Article

An approach for mechanical fault classification based on generalized discriminant analysis

LI Wei-hua, SHI Tie-lin, YANG Shu-zi

Journal Article

The convexity about ultimate bearing hypersurfaces of structures

Chengxi GUO,Tingting GUO

Journal Article

Enhanced nutrients removal from municipal wastewater through biological phosphorus removal followed by partial

Yandong Yang,Liang Zhang,Hedong Shao,Shujun Zhang,Pengchao Gu,Yongzhen Peng

Journal Article