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Theoretical analysis and experimental investigation of valveless piezoelectric pump with unsymmetrical

ZHANG Jianhui, LU Jizhuang, XIA Qixiao, LI Hong

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 1,   Pages 13-19 doi: 10.1007/s11465-007-0002-1

Abstract: Meanwhile, the theoretical equation of the pump flow rate is established.It is proved that the theory is rational and correct by comparing the experimental flow rate and the theoreticalIn addition, for calculating the theoretical flow rate, the positive and converse flow resistance coefficients

Keywords： unsymmetrical     theoretical flow     theoretical equation     pump flow     converse flow    

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Neural Mechanisms of Mental Fatigue Revisited: New Insights from the Brain Connectome Review

Peng Qi, Hua Ru, Lingyun Gao, Xiaobing Zhang, Tianshu Zhou, Yu Tian, Nitish Thakor, Anastasios Bezerianos, Jinsong Li, Yu Sun

Engineering 2019, Volume 5, Issue 2,   Pages 276-286 doi: 10.1016/j.eng.2018.11.025

Abstract: utilized in fatigue studies, convergent evidence has shown that multivariate functional connectivity analysisIn addition, graph theoretical analysis has shed new light on quantitatively assessing the reorganization

Keywords： Mental fatigue     Functional connectivity     Graph theoretical analysis     Brain network    

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Classifying multiclass relationships between ASes using graph convolutional network

Frontiers of Engineering Management   Pages 653-667 doi: 10.1007/s42524-022-0217-1

Abstract: We then introduce new features and propose a graph convolutional network (GCN) framework, AS-GCN, to

Keywords： autonomous system     multiclass relationship     graph convolutional network     classification algorithm     Internet    

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Simplified theoretical analysis and numerical study on the dynamic behavior of FCP under blast loads

Chunfeng ZHAO, Xin YE, Avinash GAUTAM, Xin LU, Y. L. MO

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 4,   Pages 983-997 doi: 10.1007/s11709-020-0633-4

Abstract: In the present study, a theoretical model and nonlinear 3D model are developed and established to assessFinally, a simplified theoretical model of the FCP under blast load is developed to predict the maximumIt is indicated that the theoretical model can precisely predict the maximum displacement of FCP under

Keywords： precast structure     fabricated concrete panel     blast resistance     theory model     empirical equation    

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Progress of Brain Network Studies on Anesthesia and Consciousness: Framework and Clinical Applications Review

Jun Liu, Kangli Dong, Yi Sun, Ioannis Kakkos, Fan Huang, Guozheng Wang, Peng Qi, Xing Chen, Delin Zhang, Anastasios Bezerianos, Yu Sun

Engineering 2023, Volume 20, Issue 1,   Pages 77-95 doi: 10.1016/j.eng.2021.11.013

Abstract: Most recently, there has been a growing trend to utilize brain network analysis to reveal the mechanismsas a starting point, we introduce important methods and research involving connectivity and network analysis

Keywords： Anesthesia     Brain network     Connectivity     Graph theoretical analysis     Clinical monitoring system    

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A review of recent experimental investigations and theoretical analyses for pulsating heat pipes

Xin TANG, Lili SHA, Hua ZHANG, Yonglin JU

Frontiers in Energy 2013, Volume 7, Issue 2,   Pages 161-173 doi: 10.1007/s11708-013-0250-1

Abstract: introduced and the current researches in the field are described from the viewpoint of experimental tests, theoreticalIn addition, it is also pointed out that the present theoretical analyses of the PHP are restricted by

Keywords： pulsating heat pipe (PHP)     flow visualization     nanofluids     nonlinear analysis    

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A multi-sensor relation model for recognizing and localizing faults of machines based on network analysis

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-022-0736-9

Abstract: Recently, advanced sensing techniques ensure a large number of multivariate sensing data for intelligent fault diagnosis of machines. Given the advantage of obtaining accurate diagnosis results, multi-sensor fusion has long been studied in the fault diagnosis field. However, existing studies suffer from two weaknesses. First, the relations of multiple sensors are either neglected or calculated only to improve the diagnostic accuracy of fault types. Second, the localization for multi-source faults is seldom investigated, although locating the anomaly variable over multivariate sensing data for certain types of faults is desirable. This article attempts to overcome the above weaknesses by proposing a global method to recognize fault types and localize fault sources with the help of multi-sensor relations (MSRs). First, an MSR model is developed to learn MSRs automatically and further obtain fault recognition results. Second, centrality measures are employed to analyze the MSR graphs learned by the MSR model, and fault sources are therefore determined. The proposed method is demonstrated by experiments on an induction motor and a centrifugal pump. Results show the proposed method’s validity in diagnosing fault types and sources.

Keywords： fault recognition     fault localization     multi-sensor relations     network analysis     graph neural network    

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Analysis of nonlinear channel friction inverse problem

CHENG Weiping, LIU Guohua

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 2,   Pages 205-210 doi: 10.1007/s11709-007-0024-0

Abstract: Theoretical analyses demonstrate that the convergence rate of the general Newton optimization algorithm

Keywords： singular     SVD     second-order     covariance     Theoretical    

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Theoretical and experimental analysis on super precision grinding of monocrystal silicon

GUO Xiaoguang, GUO Dongming, KANG Renke, JIN Zhuji

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 2,   Pages 137-143 doi: 10.1007/s11465-007-0023-9

Abstract: Through investigating the diamond-silicon grinding system, the grinding mechanism, including chip removal and subsurface damage, is discussed with the aid of the molecular dynamics (MD) approach and grinding experiments. Based on MD simulation, nanometric-grinding mechanism is analyzed from the viewpoint of instantaneous distribution of atoms, grinding force, and the potential energy between atoms and the profile of the groove. The simulation results show that some silicon atoms are deformed and piled up in front and on two sides of the abrasive surface because of the extrusion and cutting. When the energy in silicon lattice reaches its maximum value, the bonds of silicon atoms are broken and the material is removed. With the advancement of the abrasive, the silicon lattice under the abrasive surface is fractured, and then the amorphous layers are formed and propagated, which causes the subsurface damage. At the same time, some amorphous atoms are reconstructed and the degenerating layer of the machined surface is formed. Besides, the recovery of elatstic deformation occurs in the machined surface of the workpiece. In addition, the grinding experiment and profile detection with the aid of the measurment for 3D profiling are performed to verify the simulation results. The good agreement in the profile of the groove between the experimental value and the simulating value shows that MD simulation is very effective and reliable, and successful to fulfill the investigation on nanometric machining mechanism.

Keywords： machining mechanism     recovery     advancement     mechanism     subsurface    

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Large-scale graph processing systems: a survey Review

Ning LIU, Dong-sheng LI, Yi-ming ZHANG, Xiong-lve LI

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 3,   Pages 384-404 doi: 10.1631/FITEE.1900127

Abstract: Graph is a significant data structure that describes the relationship between entries.Many application domains in the real world are heavily dependent on graph data.However, graph applications are vastly different from traditional applications.of specific graph processing platforms.In this survey, we systematically categorize the graph workloads and applications, and provide a detailed

Keywords： Graph workloads     Graph applications     Graph processing systems    

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Theoretical Analysis of Public Rental House Supply

Yue Teng,Bo Xu,Xiao Li,Ling Li,Xia-zhi Fang

Frontiers of Engineering Management 2014, Volume 1, Issue 4,   Pages 372-377 doi: 10.15302/J-FEM-2014056

Abstract: The public rental house (PRH) plays a significant role in our housing security system. Using the theory of public goods, both government and private enterprises have advantages and disadvantages in supplying the PRH. In order to optimize the present supply system of the PRH, this article introduces the delivery pattern of public and private partnerships (PPP) into the government allocation system, and improves it into public-intermediary-private-partnerships (PIPP), a new supply system through government, private enterprises and intermediary organization cooperation. It helps to better achieve the security role of the PRH in our society.

Keywords： PIPP     public rental house     government supply     PPP    

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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: This paper reviews the electrocaloric effect of ferroelectric materials based on different theoreticalHamiltonian, the Landau-Devonshire thermodynamic theory, phase-field simulation, and finite element analysis

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

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Theoretical analysis and experimental study on the influence of electric double layer on thin film lubrication

WANG Xin-jie, BAI Shao-xian, HUANG Ping

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 3,   Pages 370-373 doi: 10.1007/s11465-006-0040-0

Abstract: A new mathematical model for thin film lubrication is established by taking into account the effect of an electric double layer. In the present paper, experiments are carried out on a self-made tester. With a composite block and a

Keywords： mathematical     account     electric     composite     lubrication    

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QUANTITATIVE STUDY ON ANTI-PEST ACTIVITY OF NATURAL PRODUCTS BASED ON VISUALIZATION FRAMEWORK OF KNOWLEDGE GRAPH

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 2,   Pages 306-332 doi: 10.15302/J-FASE-2023488

Abstract:

● Using visual analysis to predict the trend of natural product pest

Keywords： anti-pest activity     crop protection     insect pest     natural product     visual analysis    

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Theoretical analysis and actual experimental research on static characteristics of suspendome structure

CHEN Zhihua, YAN Xiangyu, SUN Ruirui, FENG Zhenchang, QIN Yali, ZHAO Jianbo

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 3,   Pages 286-292 doi: 10.1007/s11709-007-0037-8

Abstract: The experimental and theoretical values of member forces and nodal displacements were compared and itWhile under high-level load, the experimental value was bigger than the theoretical value due to theBoth the experimental and theoretical results verify that the suspendome has a wide application prospect

Keywords： Tianjin     influence     displacement     high-level     low-level    

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Title Author Date Type Operation

Theoretical analysis and experimental investigation of valveless piezoelectric pump with unsymmetrical

ZHANG Jianhui, LU Jizhuang, XIA Qixiao, LI Hong

Journal Article

Neural Mechanisms of Mental Fatigue Revisited: New Insights from the Brain Connectome

Peng Qi, Hua Ru, Lingyun Gao, Xiaobing Zhang, Tianshu Zhou, Yu Tian, Nitish Thakor, Anastasios Bezerianos, Jinsong Li, Yu Sun

Journal Article

Classifying multiclass relationships between ASes using graph convolutional network

Journal Article

Simplified theoretical analysis and numerical study on the dynamic behavior of FCP under blast loads

Chunfeng ZHAO, Xin YE, Avinash GAUTAM, Xin LU, Y. L. MO

Journal Article

Progress of Brain Network Studies on Anesthesia and Consciousness: Framework and Clinical Applications

Jun Liu, Kangli Dong, Yi Sun, Ioannis Kakkos, Fan Huang, Guozheng Wang, Peng Qi, Xing Chen, Delin Zhang, Anastasios Bezerianos, Yu Sun

Journal Article

A review of recent experimental investigations and theoretical analyses for pulsating heat pipes

Xin TANG, Lili SHA, Hua ZHANG, Yonglin JU

Journal Article

A multi-sensor relation model for recognizing and localizing faults of machines based on network analysis

Journal Article

Analysis of nonlinear channel friction inverse problem

CHENG Weiping, LIU Guohua

Journal Article

Theoretical and experimental analysis on super precision grinding of monocrystal silicon

GUO Xiaoguang, GUO Dongming, KANG Renke, JIN Zhuji

Journal Article

Large-scale graph processing systems: a survey

Ning LIU, Dong-sheng LI, Yi-ming ZHANG, Xiong-lve LI

Journal Article

Theoretical Analysis of Public Rental House Supply

Yue Teng,Bo Xu,Xiao Li,Ling Li,Xia-zhi Fang

Journal Article

A review on different theoretical models of electrocaloric effect for refrigeration

Journal Article

Theoretical analysis and experimental study on the influence of electric double layer on thin film lubrication

WANG Xin-jie, BAI Shao-xian, HUANG Ping

Journal Article

QUANTITATIVE STUDY ON ANTI-PEST ACTIVITY OF NATURAL PRODUCTS BASED ON VISUALIZATION FRAMEWORK OF KNOWLEDGE GRAPH

Journal Article

Theoretical analysis and actual experimental research on static characteristics of suspendome structure

CHEN Zhihua, YAN Xiangyu, SUN Ruirui, FENG Zhenchang, QIN Yali, ZHAO Jianbo

Journal Article