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Valveless pumping using a two-stage impedance pump

V. C.-C. LEE, Y. A. ABAKR, K.-C. WOO

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 3, Pages 311-318 doi: 10.1007/s11465-013-0270-x

Abstract: This paper concentrates on the fluid behavior for an open-loop two-stage system experimentally.The aim of this work is to have an insight on the deliverable head and pumping rate of an open-loop two-stage

Keywords： valveless pumping open-loop two-stage unidirectional composite

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Digitalization optical open loop test system for fiber optic gyroscope

ZHANG Deng-wei, SHU Xiao-wu, MU Xu-dong, LIU Cheng

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 4, Pages 434-438 doi: 10.1007/s11465-006-0053-8

Abstract: In order to receive and process the open loop signal from fiber optic gyroscopes speedily, stably andand the stability are improved, error rate is no more than 10, the highest bit rate is 8 MB/s and the openloop detection system for optic fiber gyros achieves standardization and complete digitalization simultaneously

Keywords： stability real-time controlling standardization controlling procedure complete digitalization

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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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Design and analysis of partially decoupled translational parallel mechanisms with single-loop structures

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 3, doi: 10.1007/s11465-022-0695-1

Abstract: This study presents a family of novel translational parallel mechanisms (TPMs) with single-loop topological

Keywords： translational parallel mechanism single loop multiple driving system workspace analysis singularity

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Design and analyses of open-ended pipe piles in cohesionless soils

Yuan GUO,Xiong (Bill) YU

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 1, Pages 22-29 doi: 10.1007/s11709-016-0314-5

Abstract: Large open-ended pipe pile has been found to be advantageous for use in transportation projects.To close this practice gap, this paper first summarized different design methods for open-ended pipe

Keywords： open-ended pipe pile soil plug DEM base capacity

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Development of a hydrodynamic model and the corresponding virtual software for dual-loop circulating

Shanwei Hu, Xinhua Liu

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 3, Pages 579-590 doi: 10.1007/s11705-020-1953-6

Abstract: Dual-loop circulating fluidized bed (CFB) reactors have been widely applied in industry because of theirThis article proposed a general method for modeling multi-loop CFB systems by utilizing the energy minimizationA full-loop modeling scheme was implemented by using the EMMS model and/or its extension models to computeparameters of the sub-reactors, to achieve the mass conservation and pressure balance in each circulation loopsoftware was further developed to facilitate the flexible creation and fast modeling of a customized multi-loop

Keywords： multi-loop circulating fluidized bed mathematical modeling energy minimization multiscale virtual fluidization

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Loop theory and applications to some key problems of kinematic structure of kinematic chains

Huafeng DING, Zhen HUANG

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 3, Pages 276-283 doi: 10.1007/s11465-009-0061-6

Abstract: In this paper, a new loop theory of kinematic chains is proposed., some key problems that hamper computer-based automatic synthesis of mechanisms are solved. 1) The open

Keywords： Loop theory kinematic chains isomorphism atlas database

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Thermal response of steel framing members in open car park fires

Xia YAN; Marion CHARLIER; Thomas GERNAY

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 9, Pages 1071-1088 doi: 10.1007/s11709-022-0879-0

Abstract: For open car park structures, adopting a performance-based structural fire design is often justifiedThis paper describes a numerical study on the thermal exposure on steel framing members in open car park

Keywords： open car park localized fire steel frame numerical modeling computational fluid dynamics

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UPFC setting to avoid active power flow loop considering wind power uncertainty

Shenghu LI, Ting WANG

Frontiers in Energy 2023, Volume 17, Issue 1, Pages 165-175 doi: 10.1007/s11708-020-0686-z

Abstract: The active power loop flow (APLF) may be caused by impropriate network configuration, impropriate parametercontrollers, e.g., the unified power flow controller (UPFC), may be the reason and the solution to the loop

Keywords： active power loop flow (APLF) unified power flow controller (UPFC) wind power uncertainty interval power

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NC flame pipe cutting machine tool based on open architecture CNC system

Xiaogen NIE, Yanbing LIU

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 2, Pages 147-152 doi: 10.1007/s11465-009-0025-x

Abstract: The paper deals with the design and implementation of an open architecture CNC system for the NFPCM,Further, the paper develops the program and sets up the open and module NC system.

Keywords： flame pipe cutting flame incision tracks CNC open architecture CNC system

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Cavitation in semi-open centrifugal impellers for a miniature pump

LUO Xianwu, LIU Shuhong, ZHANG Yao, XU Hongyuan

Frontiers in Energy 2008, Volume 2, Issue 1, Pages 31-35 doi: 10.1007/s11708-008-0011-8

Abstract: Cavitation in miniature pumps was investigated experimentally for two semi-open centrifugal impellerssimilar cavitation performances as an ordinary-size pump, with the cavitation performance of the semi-openAlso, both the hydraulic and cavitation performance of the semi-open impeller were improved by the leaned

Keywords： cavitation performance semi-open impeller increased two-dimensional efficiency

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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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Evaluation of the harmonic scalpel in open surgery for abdominal aortic aneurysm

Zeyu Wu, Zhe Chen, Lin Peng

Frontiers of Medicine 2012, Volume 6, Issue 1, Pages 85-88 doi: 10.1007/s11684-012-0174-x

Abstract: During the last few years, many surgeons have begun to use the harmonic scalpel in open surgery.The aim of the present study is to determine the value of the harmonic scalpel in open operation forA total of 153 patients who underwent open surgery for AAA at the Department of Vascular Surgery of GuangdongOpen surgery performed with the harmonic scalpel on 105 patients was compared with open operation usingThe harmonic scalpel is a safe and minimally invasive tool in open surgery for AAA and is associated

Keywords： abdominal aortic aneurysm harmonic scalpel minimally invasive

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Experimental study on flow behavior at open channel confluences

WANG Xiekang, WANG Xianye, LU Weizhen, LIU Tonghuan

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 2, Pages 211-216 doi: 10.1007/s11709-007-0025-z

Abstract: Channel confluences are common in natural rivers and hydraulic engineering, and the flow behavior at confluences becomes very complex because of the interaction between the tributary and the main river. In this study, the experiments were performed in a combined flume with a 30º angle between the main and tributary flume located at Sichuan University. The velocity was measured by using a three-component acoustic Doppler velocimeter (ADV) over a grid defined throughout the junction region. Based on the analysis of the velocity at the confluence, the distinctive characteristics of a channel confluence flow may be divided into several zones including a zone of separation immediately downstream of the junction branch channel, the maximum and minimum velocity regions at the upstream and downstream in the confluent channel, and a shear plane developed between the two combining flows downstream of the confluent channel. In addition, secondary circulations in different directions at the higher and lower velocity zones are observed as well.

Keywords： ADV different interaction separation downstream

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combined modulated feedback and temperature compensation approach to improve bias drift of a closed-loop

Ming-jun MA,Zhong-he JIN,Hui-jie ZHU

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 6, Pages 497-510 doi: 10.1631/FITEE.1400349

Abstract: In this paper, a combined approach on closed-loop architecture modification is proposed to minimize theThen a common mode signal is created and added into the closed loop on the basis of modulated feedbackThe combined approach could be useful for many other closed-loop accelerometers.

Keywords： Bias drift Closed-loop MEMS accelerometer Modulated feedback approach Temperature compensation