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Effect of Joule heating on electro-osmotic flow in a closed-end micro-channel with isothermal and convective

Liang ZHAO, Linhua LIU,

Frontiers in Energy 2009, Volume 3, Issue 4,   Pages 381-388 doi: 10.1007/s11708-009-0057-2

Abstract: The effect of Joule heating on the steady state electro-osmotic flow in a closed-end micro-channel ispresence of Joule heating causes an increase in temperature and a decrease in viscosity in the whole micro-channelon the induced pressure gradient is also studied, which is very important for the application of the closed-endmicro-channel as a micro-actuator.significantly smaller than that without considering Joule heating when the wall temperature of the micro-channel

Keywords： closed-end micro-channel     electrical double layer     electro-osmotic flow     induced pressure gradient     Joule    

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Numerical simulation of micro scale flowing and boiling

Wen WANG, Rui ZHUAN,

Frontiers in Energy 2009, Volume 3, Issue 4,   Pages 396-401 doi: 10.1007/s11708-009-0049-2

Abstract: Numerical simulations of flowing and boiling in micro channels are presented, including the modelingThe simulated results also show the details of 3-dimensional heat transfer and the flow in micro channels, which are helpful to the investigation of the mechanism of two-phase heat transfer and flow in micro

Keywords： volume-of-fluid (VOF)     micro channel     nucleate boiling     bubble dynamics     simulation    

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3D finite element prediction of chip flow, burr formation, and cutting forces in micro end-milling of

A. DAVOUDINEJAD, P. PARENTI, M. ANNONI

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 2,   Pages 203-214 doi: 10.1007/s11465-017-0421-6

Abstract: This study proposed a 3D finite element modeling (3D FEM) approach for the micro end-milling of Al6061

Keywords： 3D finite element modeling     micro end-milling     cutting force     chip formation     burr formation    

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Topology-independent end-to-end learning model for improving the voltage profile in microgrids-integrated

Frontiers in Energy 2023, Volume 17, Issue 2,   Pages 211-227 doi: 10.1007/s11708-022-0847-3

Abstract: studies that realize topology identification and decision-making optimization in sequence, the proposed end-to-endIn particular, the generator in SCAN is trained by the core modules in sequence so as to form an end-to-end

Keywords： end-to-end learning     microgrids     voltage profile improvement     generative adversarial network    

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Experimental investigations on operating characteristics of a closed loop pulsating heat pipe

Yu WANG

Frontiers in Energy 2015, Volume 9, Issue 2,   Pages 134-141 doi: 10.1007/s11708-015-0354-x

Abstract: A series of experiments were conducted on a closed loop PHP with 5 turns made of copper capillary tube

Keywords： closed loop pulsating heat pipe     thermal performance     operation limit     thermography    

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Improvement of the cascading closed loop cycle system

ZHANG Guoqiang, CAI Ruixian

Frontiers in Energy 2007, Volume 1, Issue 3,   Pages 341-346 doi: 10.1007/s11708-007-0051-5

Abstract: Aspen Plus was used to simulate and get more information about the cascading closed loop cycle (CCLC)
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Dynamic simulation of a space gas-cooled reactor power system with a closed Brayton cycle

Frontiers in Energy 2021, Volume 15, Issue 4,   Pages 916-929 doi: 10.1007/s11708-021-0757-9

Abstract: Space nuclear reactor power (SNRP) using a gas-cooled reactor (GCR) and a closed Brayton cycle (CBC)

Keywords： gas-cooled space nuclear reactor power     closed Brayton cycle     system startup and shutdown     positive reactivity    

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A study of uplink and downlink channel spatial characteristics in an urban micro scenario at 28 GHz

Tao Jiang, Jianhua Zhang, Pan Tang, Lei Tian,jet@bupt.edu.cn,jhzhang@bupt.edu.cn

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 4,   Pages 488-502 doi: 10.1631/FITEE.2000443

Abstract: This paper presents an empirical study of the and (AoA) in an urban micro (UMi) scenario at 28 GHzAt present, most UMi measurements are conducted in the and then the situation is inferred assuming channelAlthough the channel correlation coefficient of the and can be as high as 0.8, this does not mean thatOnly a real measurement can accurately describe its channel conditions, and this is what this studyBy comparing our measurement with those in standard channel models, we verify that the AoA of clusters

Keywords： 信道测量；毫米波；上行链路；下行链路；水平到达角    

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Pressure Drop Characteristics of Flow Boiling in Microchannel With Low Aspect Ratio

Zhang Binglei,Xu Jinliang and Xiao Zejun

Strategic Study of CAE 2007, Volume 9, Issue 12,   Pages 86-93

Abstract: Pressure drops of flow boiling in a single microchannel having low aspect ratio were studied with effects of the inlet temperature，mass flux，heat flux and the inclined angle using methanol as working fluid. The present experimental data were compared with the predictions of the homogeneous flow model and separated flow model respectively. The comparison indicates that the homogeneous flow model cannot predict the twophase pressure drop well except using the twophase viscosity model of the Dukler correlation. With the existing correlations for parameter C in LockhartMartinelli correlation such as Chisholm,Lee and Lee,Mishima,Qu and Mudawar , separated flow model also failed to predict the twophase pressure drop in the microchannel of this study . The experimental data in this work show that the interaction between vapor phase and liquid phase is decreased with the increasing quality when the quality reach a certain value , accordingly there needs a correlation for C which decreased with the decreasing mass flux .A new correlation to predict the twophase flow pressure drop in microchannels was developed in the form of the LockhartMartinelli correlation .It includes the effect of the hydraulic diameter and the effect of mass flux on the twophase flow pressure drop in microchannels .The new correlation developed in this study predicted the experimental data within a mean absolute error of 16.9%.

Keywords： pressure drop characteristics；homogeneous flow model；separated flow model；microchannel；flow boiling    

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General closed-form inverse kinematics for arbitrary three-joint subproblems based on the product of

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0681-7

Abstract: The novel algebraic geometric (NAG) methods that obtain the general closed-form inverse kinematics forindicating that the inverse solutions are consistent with the given joint angles validate the general closed-formAdditionally, the mean and maximum of the master–slave tracking experiment for the closed-form solutionThe experiments results demonstrate that the closed-form solution is superior to the compensation methodThe results verify the proposed general closed-form inverse kinematics based on the NAG methods.

Keywords： inverse kinematics     Paden–Kahan subproblems     three-joint subproblems     product of exponential     closed-form    

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A cellphone-based colorimetric multi-channel sensor for water environmental monitoring

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 12, doi: 10.1007/s11783-022-1590-z

Abstract:

● A cellphone-based colorimetric multi-channel sensor for in-field

Keywords： Colorimetric analysis     Multi-channel sensor     Cellphone     Water quality indexes     Environmental monitoring    

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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: decomposition (SVD) for general inverse matrices and the optimization algorithm are used to solve the channel

Keywords： singular     SVD     second-order     covariance     Theoretical    

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Analysis of stress and failure in rock specimens with closed and open flaws on the surface

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 5,   Pages 1222-1237 doi: 10.1007/s11709-021-0773-1

Abstract: The influence of closed and open surface flaws on the stress distribution and failure in rock specimensThe simulated specimens include those with closed flaws and those with open flaws on the surface.Numerical results show significant differences in the stress, displacement, and failure behavior of the closed

Keywords： surface flaw     heterogeneity     circular hole     numerical modeling     relative displacement    

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Efficient decoding self-attention for end-to-end speech synthesis Research Article

Wei ZHAO, Li XU

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 7,   Pages 1127-1138 doi: 10.1631/FITEE.2100501

Abstract: has been innovatively applied to text-to-speech (TTS) because of its parallel structure and superior strength in modeling sequential data. However, when used in with an autoregressive decoding scheme, its inference speed becomes relatively low due to the quadratic complexity in sequence length. This problem becomes particularly severe on devices without graphics processing units (GPUs). To alleviate the dilemma, we propose an (EDSA) module as an alternative. Combined with a dynamic programming decoding procedure, TTS model inference can be effectively accelerated to have a linear computation complexity. We conduct studies on Mandarin and English datasets and find that our proposed model with EDSA can achieve 720% and 50% higher inference speed on the central processing unit (CPU) and GPU respectively, with almost the same performance. Thus, this method may make the deployment of such models easier when there are limited GPU resources. In addition, our model may perform better than the baseline Transformer TTS on out-of-domain utterances.

Keywords： Efficient decoding     End-to-end     Self-attention     Speech synthesis    

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Comparison on End-of-Life strategies of WEEE in China based on LCA

Bin Lu, Xiaolong Song, Jianxin Yang, Dong Yang

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 5, doi: 10.1007/s11783-017-0994-7

Abstract: It becomes an urgent issue to develop and adopt an effective End-of-Life (EoL) strategy for EEE in order

Keywords： End-of-Life     Waste electrical and electronic equipment     Life cycle assessment     Reuse    

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Title Author Date Type Operation

Effect of Joule heating on electro-osmotic flow in a closed-end micro-channel with isothermal and convective

Liang ZHAO, Linhua LIU,

Journal Article

Numerical simulation of micro scale flowing and boiling

Wen WANG, Rui ZHUAN,

Journal Article

3D finite element prediction of chip flow, burr formation, and cutting forces in micro end-milling of

A. DAVOUDINEJAD, P. PARENTI, M. ANNONI

Journal Article

Topology-independent end-to-end learning model for improving the voltage profile in microgrids-integrated

Journal Article

Experimental investigations on operating characteristics of a closed loop pulsating heat pipe

Yu WANG

Journal Article

Improvement of the cascading closed loop cycle system

ZHANG Guoqiang, CAI Ruixian

Journal Article

Dynamic simulation of a space gas-cooled reactor power system with a closed Brayton cycle

Journal Article

A study of uplink and downlink channel spatial characteristics in an urban micro scenario at 28 GHz

Tao Jiang, Jianhua Zhang, Pan Tang, Lei Tian,jet@bupt.edu.cn,jhzhang@bupt.edu.cn

Journal Article

Pressure Drop Characteristics of Flow Boiling in Microchannel With Low Aspect Ratio

Zhang Binglei,Xu Jinliang and Xiao Zejun

Journal Article

General closed-form inverse kinematics for arbitrary three-joint subproblems based on the product of

Journal Article

A cellphone-based colorimetric multi-channel sensor for water environmental monitoring

Journal Article

Analysis of nonlinear channel friction inverse problem

CHENG Weiping, LIU Guohua

Journal Article

Analysis of stress and failure in rock specimens with closed and open flaws on the surface

Journal Article

Efficient decoding self-attention for end-to-end speech synthesis

Wei ZHAO, Li XU

Journal Article

Comparison on End-of-Life strategies of WEEE in China based on LCA

Bin Lu, Xiaolong Song, Jianxin Yang, Dong Yang

Journal Article