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Bi-modes alternation stepping ultrasonic motors

JIN Jiamei, ZHAO Chunsheng

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 1,   Pages 101-105 doi: 10.1007/s11465-008-0018-1

Abstract: The prototype runs steadily without miss-step on trial.The single-step angle displacement of the motor is 2.5°.

Keywords： miss-step     bi-direction     Two-phase sinusoidal     positioning     accumulative    

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Analysis of flow over backward facing step with transition

Dwarikanath RATHA,Arindam SARKAR

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 1,   Pages 71-81 doi: 10.1007/s11709-014-0270-x

Abstract: The flow of air over a backward facing step has been investigated numerically using FLUENT.Flow simulation has been carried out in a backward facing step having an expansion ratio (ratio of theheight before and after the step) of 1:1.94 and the results obtained are compared with the publishedThe primary reattachment length at the bottom wall downstream of the step is minimum for the step withround edged transition and maximum for the step with a vertical drop transition.

Keywords： Reattachment length     backward facing step     transition     flow separation     k-? model    

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One-step synthesis of recoverable CuCo

Tongzhou Lu, Yongzheng Zhang, Chun Cheng, Yanbin Wang, Yongming Zhu

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 4,   Pages 595-604 doi: 10.1007/s11705-019-1818-z

Abstract: A facile one-step hydrothermal method has been adopted to directly synthesize the CuCo S material on

Keywords： copper cobalt sulfide     recoverability     one-step hydrothermal method     anode material     Li-ion battery    

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On Step by Step Method in Developing Aero-Engines

Wen Junfeng

Strategic Study of CAE 2000, Volume 2, Issue 3,   Pages 23-26

Abstract: The regularity and importance of the mode of step by step development are discussed and justified with

Keywords： aero-engine     ways to develop aero-engines     step by step method    

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ApipelinedReed-Solomon decoder based on a modified step-by-step algorithm Article

Xing-ru PENG,Wei ZHANG,Yan-yan LIU

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 9,   Pages 954-961 doi: 10.1631/FITEE.1500303

Abstract: propose a pipelined Reed-Solomon (RS) decoder for an ultra-wideband system using a modified stepby-stepTo reduce the complexity, the modified step-by-step algorithm merges two cases of the original algorithmThe area of the proposed decoder is 11.3% less than that of the previous step-by-step decoder with a

Keywords： Reed-Solomon codes     Step-by-step algorithm     Ultra-wideband     Pipelined structure    

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Microplastics removal strategies: A step toward finding the solution

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 1,   Pages 7-7 doi: 10.1007/s11783-021-1441-3

Abstract:

Microplastics are an emerging threat and a big challenge for the environment. The presence of microplastics (MPs) in water is life-threatening to diverse organisms of aquatic ecosystems. Hence, the scientific community is exploring deeper to find treatment and removal options of MPs. Various physical, chemical and biological methods are researched for MPs removal, among which few have shown good efficiency in the laboratory. These methods also have a few limitations in environmental conditions. Other than finding a suitable method, the creation of legal restrictions at a governmental level by imposing policies against MPs is still a daunting task in many countries. This review is an effort to place all effectual MP removal methods in one document to compare the mechanisms, efficiency, advantages, and disadvantages and find the best solution. 

Keywords： Aquatic     Coagulation     Microplastics     Plastic     Water Treatment Plant     Wastewater    

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Practical consideration for design and optimization of the step feed process

Shijian GE, Yongzhen PENG, Congcong LU, Shuying WANG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 1,   Pages 135-142 doi: 10.1007/s11783-012-0454-3

Abstract: Based on the anoxic/oxic (A/O) step feed process, a modified University of Cape Town (UCT) step feedConsequently, the modified UCT step feed process was more attractive for the wastewater treatment plant

Keywords： step feed     anoxic/oxic (A/O)     University of Cape Town (UCT)     simultaneous nitrification and denitrification    

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One-step synthesis of

Kuiyi YOU, Fangfang ZHAO, Xueyan LONG, Pingle LIU, Qiuhong AI, Hean LUO

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 4,   Pages 389-394 doi: 10.1007/s11705-012-1218-0

Abstract: fuming sulfuric acid, the selectivity for the desired product was significantly improved using this one-step

Keywords： -caprolactam     AlVPO composite catalysts     one-step synthesis     concentrated sulfuric acid    

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Two-step hydrothermal conversion of biomass waste to humic acid using hydrochar as intermediate

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 10, doi: 10.1007/s11783-023-1719-8

Abstract: A two-step hydrothermal treatment method was adopted in this study to produce humic acid from corn stalksIn the first step of the process, hydrochar was prepared at different hydrothermal temperatures and pH

Keywords： Biowaste     Hydrochar     Humic acid     Hydrothermal parameter     Unsaturation    

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Error measurement and assemble error correction of a 3D-step-gauge

MAO Xinyong, LI Bin, SHI Hanmin, LIU Hongqi, LI Xi, LI Peigen

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 4,   Pages 388-393 doi: 10.1007/s11465-007-0067-x

Abstract: A new artifact called 3D-step-gauge consisting of a pyramid array and a compound, is proposed to calculateThe 3D-step-gauge was tested on an actual machine tool and the measurement result shows quick assembly

Keywords： volumetric     pyramid     assembly     accuracy     calibration    

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Novel precision piezoelectric step rotary actuator

LIU Jianfang, YANG Zhigang, ZHAO Hongwei, CHENG Guangming

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 3,   Pages 356-360 doi: 10.1007/s11465-007-0062-2

Abstract: A novel piezoelectric (PZT) precision step rotary actuator was developed on the basis of PZT technologyuniformly distributed thin flexible hinge to solve problems such as ineffective anchoring/loosening, low stepcharacterized by high frequency (30 Hz), high speed (380 μrad/s), large travel (>270º), high resolution (1 μrad/stepIt greatly improves the ability to drive the existing PZT step rotary actuator.

Keywords： developed     stability     ineffective anchoring/loosening     technology     piezoelectric    

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Denitrification and phosphorus uptake by DPAOs using nitrite as an electron acceptor by step-feed strategies

Bin MA, Shuying WANG, Guibing ZHU, Shijian GE, Junmin WANG, Nanqi Ren, Yongzhen PENG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 2,   Pages 267-272 doi: 10.1007/s11783-012-0439-2

Abstract: In this study, the step-feed strategy was proposed to achieve low nitrite concentration, which can avoidnitrite denitrified (anoxic P/N ratio) increased when the nitrite concentration was 15 mg·L after step-feedingDenitrification rate by DPAOs decreased gradually when nitrite (about 20 mg·L ) was added in the step-feedThese results indicated that the step-feed strategy can be used to achieve denitrifying phosphorus removal

Keywords： denitrifying phosphate accumulating organisms (DPAOs)     denitrification     phosphorus uptake     nitrite     step-feed    

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Nanopositioning and Nonlinearity Compensation for Step Imprint Lithography Tool

LU Bing-heng, LIU Hong-zhong, DING Yu-cheng, WANG Li, QIU Zhi-hui

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 1,   Pages 6-13 doi: 10.1007/s11465-005-0003-x

Abstract:

In this paper, the motion mode and nanopositioning accuracy in the step imprinting lithography processprove that this nonlinearity compensation is very effective and the positioning accuracy during the step

Keywords： different     nonoscillatory     nonlinearity     integral derivative     positioning    

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The design of double line five step ship-lock of Three Gorges Project

Niu Xingqiang,Tong Di,Song Weibang

Strategic Study of CAE 2011, Volume 13, Issue 7,   Pages 85-90

Abstract:

The general design and layout of the double line five step ship lock

Keywords： Three Gorges Project     double-line five-step     design of ship-lock    

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A step forward in laparoscopic hepatectomy: comments on “Expert Consensus on Laparoscopic Hepatectomy

Eric C.H. Lai

Frontiers of Medicine 2013, Volume 7, Issue 4,   Pages 520-522 doi: 10.1007/s11684-013-0302-2

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Title Author Date Type Operation

Bi-modes alternation stepping ultrasonic motors

JIN Jiamei, ZHAO Chunsheng

Journal Article

Analysis of flow over backward facing step with transition

Dwarikanath RATHA,Arindam SARKAR

Journal Article

One-step synthesis of recoverable CuCo

Tongzhou Lu, Yongzheng Zhang, Chun Cheng, Yanbin Wang, Yongming Zhu

Journal Article

On Step by Step Method in Developing Aero-Engines

Wen Junfeng

Journal Article

ApipelinedReed-Solomon decoder based on a modified step-by-step algorithm

Xing-ru PENG,Wei ZHANG,Yan-yan LIU

Journal Article

Microplastics removal strategies: A step toward finding the solution

Journal Article

Practical consideration for design and optimization of the step feed process

Shijian GE, Yongzhen PENG, Congcong LU, Shuying WANG

Journal Article

One-step synthesis of

Kuiyi YOU, Fangfang ZHAO, Xueyan LONG, Pingle LIU, Qiuhong AI, Hean LUO

Journal Article

Two-step hydrothermal conversion of biomass waste to humic acid using hydrochar as intermediate

Journal Article

Error measurement and assemble error correction of a 3D-step-gauge

MAO Xinyong, LI Bin, SHI Hanmin, LIU Hongqi, LI Xi, LI Peigen

Journal Article

Novel precision piezoelectric step rotary actuator

LIU Jianfang, YANG Zhigang, ZHAO Hongwei, CHENG Guangming

Journal Article

Denitrification and phosphorus uptake by DPAOs using nitrite as an electron acceptor by step-feed strategies

Bin MA, Shuying WANG, Guibing ZHU, Shijian GE, Junmin WANG, Nanqi Ren, Yongzhen PENG

Journal Article

Nanopositioning and Nonlinearity Compensation for Step Imprint Lithography Tool

LU Bing-heng, LIU Hong-zhong, DING Yu-cheng, WANG Li, QIU Zhi-hui

Journal Article

The design of double line five step ship-lock of Three Gorges Project

Niu Xingqiang,Tong Di,Song Weibang

Journal Article

A step forward in laparoscopic hepatectomy: comments on “Expert Consensus on Laparoscopic Hepatectomy

Eric C.H. Lai

Journal Article