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Error compensation for tool-tip trace during cutting of laminated paper for rapid prototyping

Yucheng DING, Changhe LI, Dichen LI, Guoxin YU

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 2,   Pages 111-119 doi: 10.1007/s11465-009-0020-2

Abstract: Laminated object manufacturing (LOM) is one of the commercialized rapid prototyping (RP) processes, where

Keywords： rapid prototyping     laminated object manufacturing     knife-cutting     tracing error    

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Design and 3D Printing of Scaffolds and Tissues Review

Jia An, Joanne Ee Mei Teoh, Ratima Suntornnond, Chee Kai Chua

Engineering 2015, Volume 1, Issue 2,   Pages 261-268 doi: 10.15302/J-ENG-2015061

Abstract:

A growing number of three-dimensional (3D)-printing processes have been applied to tissue engineering. This paper presents a state-of-the-art study of 3D-printing technologies for tissue-engineering applications, with particular focus on the development of a computer-aided scaffold design system; the direct 3D printing of functionally graded scaffolds; the modeling of selective laser sintering (SLS) and fused deposition modeling (FDM) processes; the indirect additive manufacturing of scaffolds, with both micro and macro features; the development of a bioreactor; and 3D/4D bioprinting. Technological limitations will be discussed so as to highlight the possibility of future improvements for new 3D-printing methodologies for tissue engineering.

Keywords： rapid prototyping     3D printing     additive manufacturing     tissue engineering     bioprinting    

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SoftSSD: enabling rapid flash firmware prototyping for solid-state drives Research Article

Jin XUE, Renhai CHEN, Tianyu WANG, Zili SHAO,jinxue@cse.cuhk.edu.hk,renhai.chen@tju.edu.cn,tywang@cse.cuhk.edu.hk,shao@cse.cuhk.edu.hk

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 5,   Pages 659-674 doi: 10.1631/FITEE.2200456

Abstract: Despite the rapid development of new SSD features in the market, the research of flash firmware has beenIn this paper, we propose SoftSSD, a software-oriented SSD development platform for rapid flash firmwareprototyping.examined with a software debugger, providing the observability and extensibility that are critical to the rapidprototyping and research of flash firmware.

Keywords： Solid-state drives     Storage system     Software hardware co-design    

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Urban watershed management under rapid urbanization

Pengfei DU, Haifeng JIA, Shaw L. YU

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 5,   Pages 595-595 doi: 10.1007/s11783-012-0452-5

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Development of New Modality Municipal Public Transportation for Guangzhou—Group Rapid Transit System

Ru-jiang Zhao,Wung Hee Moh

Frontiers of Engineering Management 2015, Volume 2, Issue 4,   Pages 378-390 doi: 10.15302/J-FEM-2015061

Abstract: As one of the primary business centers of China, Guangzhou has been undergoing rapid growth and expansionupgraded its transport infrastructure, especially with the highly beneficial expansion of its Subway Mass RapidPositive steps have also been taken to continue planning the construction of new roads, a Bus Rapid Transitto develop an advanced high-efficiency public transportation modality for Guangzhou, viz. the Group RapidThis paper outlines the PRT/GRT (PRT: Personal Rapid Transit) smart-vehicle modality and also puts forth

Keywords： public transportation system     innovative city transportation     Subway Mass Rapid Transit (MRT)     Bus RapidTransit (BRT)     Group Rapid Transit (GRT)     Personal Rapid Transit (PRT)    

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of orthogonal optimization design for vehicle maneuverability and structure optimum based on virtual prototyping

Che Huajun,Chen Nan,Yin Guodong

Strategic Study of CAE 2009, Volume 11, Issue 9,   Pages 81-86

Abstract: The applying virtual prototyping technology for vehicle maneuverability and structure orthogonal optimization

Keywords： virtual prototyping     vehicle maneuverability     orthogonal optimization design    

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Total stress rapid drawdown analysis of the Pilarcitos Dam failure using the finite element method

Daniel R. VANDENBERGE

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 2,   Pages 115-123 doi: 10.1007/s11709-014-0249-7

Abstract: Rapid drawdown is a critical design condition for the upstream or riverside slope of earth dams and leveesA new total stress rapid drawdown method based on finite element analysis is used to analyze the rapidanalysis suggests that undrained strengths from ICU tests must be reduced by 30% for use with this rapid

Keywords： rapid drawdown     finite element     total stress     slope stability    

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Virtual Prototyping of Compact Cyclotron

Fan Mingwu,Yu Tianqin,Xiong Yongqian,Chen Dezhi,Xiong Jian,Qin Bin,Hong Yueming,Dong Changdong

Strategic Study of CAE 2003, Volume 5, Issue 10,   Pages 8-13

Abstract:

Based on the cyclotron theory and virtual prototyping technique, a compact cyclotron virtual prototyping

Keywords： compact cyclotron     virtual prototyping     augmented reality    

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Experimental study and field application of calcium sulfoaluminate cement for rapid repair of concrete

Yanhua GUAN, Ying GAO, Renjuan SUN, Moon C. WON, Zhi GE

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 3,   Pages 338-345 doi: 10.1007/s11709-017-0411-0

Abstract: Based on the laboratory results, the CSA cement was selected as the partial-depth rapid repair materialcement concrete had good short-term and long-term performances and, therefore, was suitable for the rapid

Keywords： Calcium Sulfoaluminate (CSA) cement     Type III cement     coefficient of thermal expansion (CTE)     shrinkage     rapid    

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Design and characteristics of electric supercharger for diesel engine acceleration by additional rapid

YAO Chun-de, ZHOU Hong-xiu

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 4,   Pages 409-412 doi: 10.1007/s11465-006-0048-5

Abstract: The ES (electric supercharger) driven by a high-speed brushless motor was developed to solve the problem of smoke caused by the turbocharger s sluggish response during acceleration. Its rotation speed was from 6 000 r/min to 24 000 r/min, and the maximum flux was 0.1 kg/s. The structural design of the electric supercharger is novel, which makes it easier to set the lubricating installation and to assemble. The velocity distribution at the outlet of the electric supercharger is determined by hot-wire anemometry under various rotation speeds in steady state. Furthermore, the trends of the flux and charge rate with various speeds were analyzed. In addition, the transient response was detected from the motor setup to smooth running within 10 s, 15 s, 20 s and 25 s respectively, and the characteristic of the transient flux is under pilot study. Research results indicate that the electric supercharger can respond rapidly with the great flux, and it is independent of the operating conditions of a diesel engine. Therefore, it is a feasible way to reduce smoke emission and improve the acceleration performance.

Keywords： acceleration     velocity distribution     high-speed brushless     turbocharger     electric supercharger    

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Application of rapid thermal processing on SiN thin film to solar cells

LI Youjie, LUO Peiqing, ZHOU Zhibin, CUI Rongqiang, HUANG Jianhua, WANG Jingxiao

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 519-523 doi: 10.1007/s11708-008-0095-1

Abstract: Rapid thermal processing (RTP) of SiN thin films from PECVD with low temperature was investigated.
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A Meta-synthetic Decision Support System in Virtual Prototyping for Complex Products

Chen Xi,Song Yubo,Wang Zhiquan,Wu Huizhong

Strategic Study of CAE 2006, Volume 8, Issue 2,   Pages 67-74

Abstract:

Complex decision-making problems in virtual prototyping for complex products are difficult to useand current DSS, this paper proposed to establish meta-synthetic decision support system in virtual prototyping

Keywords： complex products     virtual prototyping     meta-synthetic decision support system     hall for workshop of meta-synthetic    

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A study on rapid acid chrome black (MB 7) spectrophotometric determination of ClO

Jing DONG, Huilong WANG

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 2,   Pages 245-251 doi: 10.1007/s11705-010-1003-x

Abstract: Experiments were conducted to investigate the degradation of 2,6-dinitro- -cresol (DNPC) in the chlorine dioxide (ClO ) catalytic oxidation process. Pure aluminum oxide was used as the catalyst in this process. The degradation of DNPC by ClO using aluminum oxide as catalyst was systematically studied by varying the experimental parameters, such as pH values, catalyst dosage, the initial concentration of DNPC and ClO , reaction time, etc. Under optimal condition (DNPC concentration 39 mg·L , ClO concentration 0.234 g·L , reaction time 15 min, catalyst dosage 4.7 g·L and pH 4.32), almost complete degradation of DNPC can be achieved. The kinetic studies revealed that the ClO catalytic oxidation degradation of DNPC followed pseudo-first-order kinetics with respect to both ClO and DNPC concentration. The repetitive use of the catalyst was investigated along sequential feed-batch trials. The catalyst performed efficiently after five runs. In addition, a simple and convenient method for the determination of ClO in water was developed by using acid chrome black 7 (MB 7) spectrophotometry in this paper.

Keywords： chlorine dioxide     2     6-dinitro-p-cresol (DNPC)     aluminum oxide     water treatment     MB 7 spectrophotometry    

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A microextraction approach for rapid extraction and separation of Mn(II) and Co(II) using saponified

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6,   Pages 963-972 doi: 10.1007/s11705-021-2081-7

Abstract: In this paper, we proposed a microextraction approach for the extraction and separation of Mn(II) and Co(II) from sulfate solution simulating leachate of spent lithium-ion battery cathode materials using saponified di-(2-ethylhexyl)phosphoric acid system. The effects of the following operational variables were investigated: equilibrium pH, tri-n-butyl phosphate concentration, saponification rate, two-phase ratio and residence time. The results showcased that the microextractor can reach the extraction equilibrium within 20 s, thereby greatly reducing necessary extraction time comparing to that of conventional processes. The volumetric mass transfer coefficient showed 8–21 times larger than that of batch device. With the help of microextractor, 95% of Mn(II) was extracted with a single theoretical stage at a chosen two-phase ratio of 3:1, and the separation factor βMn/Co was as large as 65.5. In the subsequent stripping step, more than 99% of manganese from loaded phase was easily stripped under optimal conditions. The microextraction approach greatly enhances the mass transfer while enabling a continuous and controllable extraction process within a simple structure design. When extracting spent electrode material with microextractors, the comprehensive recovery of mangenese can reach 96%. The microextraction approach has a good applicability in the spent lithium-ion battery cathode materials recycling at both bench and industrial scales.

Keywords： extraction equilibrium     mass transfer coefficient     microextraction     multicomponent extraction     di-(2-ethylhexyl)phosphoric acid    

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A novel flavonol-based colorimetric and turn-on fluorescent probe for rapid determination of hydrazine

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 1,   Pages 24-33 doi: 10.1007/s11705-022-2171-1

Abstract: Hydrazine is extremely toxic and causes severe harm to human body. Herein, a novel fluorescent probe 4-oxo-2-styryl-4H-chromen-3-yl thiophene-2-carboxylate (FHT) was synthesized for detecting hydrazine by using natural cinnamaldehyde as starting material. This probe exhibited significantly enhanced fluorescence response towards hydrazine over various common metal ions, anions, and amine compounds. The detection limit of probe FHT for hydrazine was as low as 0.14 μmol·L–1, significantly lower than that of the threshold value of 0.312 μmol·L–1, imposed by the Environmental Protection Agency. Moreover, the proposed probe was able to detect hydrazine within wide pH (5–10) and linear detection ranges (0–110 μmol·L–1). This probe was employed for determining trace hydrazine in different environmental water samples. The probe FHT-loaded filter paper strips were able to conveniently detect hydrazine of low concentration through distinct naked-eye and fluorescent color changes. Importantly, the probe FHT with low cytotoxicity was successfully applied to visualize hydrazine in living Hela cells and zebrafish.

Keywords： cinnamaldehyde     3-hydroxychromone derivative     hydrazine     fluorescent probe    

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Title Author Date Type Operation

Error compensation for tool-tip trace during cutting of laminated paper for rapid prototyping

Yucheng DING, Changhe LI, Dichen LI, Guoxin YU

Journal Article

Design and 3D Printing of Scaffolds and Tissues

Jia An, Joanne Ee Mei Teoh, Ratima Suntornnond, Chee Kai Chua

Journal Article

SoftSSD: enabling rapid flash firmware prototyping for solid-state drives

Jin XUE, Renhai CHEN, Tianyu WANG, Zili SHAO,jinxue@cse.cuhk.edu.hk,renhai.chen@tju.edu.cn,tywang@cse.cuhk.edu.hk,shao@cse.cuhk.edu.hk

Journal Article

Urban watershed management under rapid urbanization

Pengfei DU, Haifeng JIA, Shaw L. YU

Journal Article

Development of New Modality Municipal Public Transportation for Guangzhou—Group Rapid Transit System

Ru-jiang Zhao,Wung Hee Moh

Journal Article

of orthogonal optimization design for vehicle maneuverability and structure optimum based on virtual prototyping

Che Huajun,Chen Nan,Yin Guodong

Journal Article

Total stress rapid drawdown analysis of the Pilarcitos Dam failure using the finite element method

Daniel R. VANDENBERGE

Journal Article

Virtual Prototyping of Compact Cyclotron

Fan Mingwu,Yu Tianqin,Xiong Yongqian,Chen Dezhi,Xiong Jian,Qin Bin,Hong Yueming,Dong Changdong

Journal Article

Experimental study and field application of calcium sulfoaluminate cement for rapid repair of concrete

Yanhua GUAN, Ying GAO, Renjuan SUN, Moon C. WON, Zhi GE

Journal Article

Design and characteristics of electric supercharger for diesel engine acceleration by additional rapid

YAO Chun-de, ZHOU Hong-xiu

Journal Article

Application of rapid thermal processing on SiN thin film to solar cells

LI Youjie, LUO Peiqing, ZHOU Zhibin, CUI Rongqiang, HUANG Jianhua, WANG Jingxiao

Journal Article

A Meta-synthetic Decision Support System in Virtual Prototyping for Complex Products

Chen Xi,Song Yubo,Wang Zhiquan,Wu Huizhong

Journal Article

A study on rapid acid chrome black (MB 7) spectrophotometric determination of ClO

Jing DONG, Huilong WANG

Journal Article

A microextraction approach for rapid extraction and separation of Mn(II) and Co(II) using saponified

Journal Article

A novel flavonol-based colorimetric and turn-on fluorescent probe for rapid determination of hydrazine

Journal Article