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Closed surface modeling with helical line measurement data

LI Ruqiong, LI Guangbu, WANG Yuhan

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 1,   Pages 72-76 doi: 10.1007/s11465-007-0012-z

Abstract: Models for surface modeling of free-form surface and massive data points are becoming an important featureHowever, there are many problems to be solved in this area, especially for closed free-form surface modelingsteps: first, the cloud data are preprocessed for smoothing; second, a helical line is segmented to formon an entire surface.In the end, an illustrative example of shoe last surface modeling is given to show the availability of

Keywords： free-form surface     helical     triangle     design/computer-aided manufacturing     effective    

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Relationships of nitrous oxide fluxes with water quality parameters in free water surface constructed

Juan WU, Jian ZHANG, Wenlin JIA, Huijun XIE, Bo ZHANG

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 2,   Pages 241-247 doi: 10.1007/s11783-009-0023-6

Abstract: oxide (N O) emissions, together with the relationships between N O and water quality parameters in freewater surface constructed wetlands, were investigated with laboratory-scale systems.

Keywords： free water surface constructed wetland     nitrous oxide emission     water quality parameter     principal component    

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New form of geodetic coordinate system taking two length quantity as coordinate parameters

Yimin SHI, Ziyang ZHU, Yeming FAN

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 1,   Pages 105-110 doi: 10.1007/s11709-009-0014-5

Abstract: A new form of geodetic coordinate system based on geodesic coordinates instead of geodetic longitudeThe first fundamental form on the ellipsoidal surface and its three coefficients were deduced by thecoordinate parameters; and consequently, it is convenient and accurate enough to operate on the ellipsoidal surfacein this new form of geodetic coordinate system.

Keywords： geodetic coordinate system     meridian and parallel circle     coordinate parameter     the first fundamental formon the ellipsoidal surface     latitudinal scale factor of length    

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Environmental dispersivity in free-water-surface-effect dominated wetland: multi-scale analysis

Zi WU, Zhi LI, Li ZENG, Ling SHAO, Hansong TANG, Qing YANG, Guoqian CHEN

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 4,   Pages 597-603 doi: 10.1007/s11783-011-0311-9

Abstract: longitudinal evolution of contaminant concentration in the most-typical pattern of wetland as dominated by free-water-surface-effect

Keywords： free-surface wetland     environmental dispersion     multi-scale analysis    

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Dynamic analysis of free-surface thin film flows driven by gravity over undulated substrate

Zhaomiao LIU, Xin LIU, Guobin WANG, Hong LIAO,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 2,   Pages 219-225 doi: 10.1007/s11465-010-0010-4

Abstract: This paper studies thin film flows with free surfaces driven by gravity through two types of undulatedThe substrate plane is fixed and inclined to a certain angle and the flow with a free surface.FEM), commenced from Navier-Stokes equations and continuity equation, the exact numerical results of free-surface

Keywords： waviness     triangle height     film thickness     streamlines separation     vortex    

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Towards Cr(VI)-free anodization of aluminum alloys for aerospace adhesive bonding applications: A review

Shoshan T. Abrahami, John M. M. de Kok, Herman Terryn, Johannes M. C. Mol

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 3,   Pages 465-482 doi: 10.1007/s11705-017-1641-3

Abstract: For more than six decades, chromic acid anodizing (CAA) has been the central process in the surface pre-treatmentthe oxide properties, such as morphological features (e.g., pore size, barrier layer thickness) and surface

Keywords： aluminum     Cr(VI)-free     surface pre-treatments     anodizing     adhesive bonding    

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Combination form analysis and experimental study of mechanical properties on steel sheet glass fiber

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 834-850 doi: 10.1007/s11709-021-0743-7

Abstract: An optimization plan was proposed in the combined form of SSGCB.Three-dimensional finite element analysis was adopted to perform the combination form optimization of

Keywords： steel sheet GFRP composite bar     combination form     numerical modeling     mechanical properties test     strength    

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Full-band error control and crack-free surface fabrication techniques for ultra-precision fly cutting

F. H. ZHANG, S. F. WANG, C. H. AN, J. WANG, Q. XU

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 2,   Pages 193-202 doi: 10.1007/s11465-017-0448-8

Abstract: characteristics of the fly cutting machine and fluctuations in the fly cutting environment are translated into surfaceIn this study, the anisotropic machinability of KDP crystals and the causes of typical surface errorsof the fly cutting machine and existing processing parameters are optimized to improve the machined surface

Keywords： ultra-precision fly cutting     large-aperture KDP crystals     spatial frequency     processing error    

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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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Subcellular distribution and chemical form of Pb in hyperaccumulator

Yanqun ZU,Yuan LI,Huan MIN,Fangdong ZHAN,Li QIN,Jixiu WANG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 2,   Pages 250-258 doi: 10.1007/s11783-014-0643-3

Abstract: fraction) in shoots and FI (Fraction I, cell wall fraction) in roots. 4) Contents of soluble sugar and freeSignificantly positive correlations between Pb and contents of soluble sugar and free amino acid wereThe results indicate that soluble sugars, free amino acid and citric acid in root exudates of facilitate

Keywords： Pb     Arenaria orbiculata     chemical forms     subcellular distribution     root exudates     hydroponic culture    

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Generation of closed-form inverse kinematics for reconfigurable robots

ZHAO Jie, WANG Weizhong, GAO Yongsheng, CAI Hegao

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 1,   Pages 91-96 doi: 10.1007/s11465-008-0013-6

Abstract: A generalized, decomposable, and reusable approach for close-form inverse kinematics of reconfigurable

Keywords： different     effectiveness     generation     reconfigurable     algebraic    

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New Development of Double Glow Plasma Surface Metallurgy Technology

Xu Zhong,Zhang Gaohui,Zhang Pingze,Zhang Yanmei,Chi Chengzhong,Yuan Qinglong

Strategic Study of CAE 2005, Volume 7, Issue 6,   Pages 73-78

Abstract:

This paper summarises some new development of the double glow plasma surface metallurgy technologyCo - W - Mo - Fe age-hardened high speed steel and high Cr alloy have been formed on the surface of carbonTi - Cu wear-resistant alloy was also produced on the surface of pure copper.By using this process and solid graphite as carbon source, hydrogen-free carburising has been achievedmethod for surface alloying.

Keywords： surface metallurgy     double glow plasma surface alloying     burn resistant titanium alloy     hydrogen-free carburizing    

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Virtual Corporation Is a New Form of Enterprise for Knowledge Economy

Li Xin,Li Ji

Strategic Study of CAE 2001, Volume 3, Issue 9,   Pages 81-85

Abstract:

This paper tries to use the theory of modern management to analyze virtual corporation, the new form

Keywords： knowledge economy     virtual corporation     new form of enterprise    

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Fabrication of form stable NaCl-Al2O3 composite for thermal energy storage by cold sintering process

Bilyaminu Suleiman, Qinghua Yu, Yulong Ding, Yongliang Li

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 4,   Pages 727-735 doi: 10.1007/s11705-019-1823-2

Abstract: A form stable NaCl-Al O (50-50 wt-%) composite material for high temperature thermal energy storage

Keywords： cold sintering process     composite fabrication     thermal energy storage     phase change materials    

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Cell-free systems in the new age of synthetic biology

Fernando Villarreal,Cheemeng Tan

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 1,   Pages 58-65 doi: 10.1007/s11705-017-1610-x

Abstract: The advent of synthetic biology has ushered in new applications of cell-free transcription-translationThese cell-free systems are reconstituted using cellular proteins, and are amenable to modular controlHere, we discuss the historical advancement of cell-free systems, as well as their new applications inFinally, we present our vision on the future direction of cell-free synthetic biology.

Keywords： cell-free system     application    

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Title Author Date Type Operation

Closed surface modeling with helical line measurement data

LI Ruqiong, LI Guangbu, WANG Yuhan

Journal Article

Relationships of nitrous oxide fluxes with water quality parameters in free water surface constructed

Juan WU, Jian ZHANG, Wenlin JIA, Huijun XIE, Bo ZHANG

Journal Article

New form of geodetic coordinate system taking two length quantity as coordinate parameters

Yimin SHI, Ziyang ZHU, Yeming FAN

Journal Article

Environmental dispersivity in free-water-surface-effect dominated wetland: multi-scale analysis

Zi WU, Zhi LI, Li ZENG, Ling SHAO, Hansong TANG, Qing YANG, Guoqian CHEN

Journal Article

Dynamic analysis of free-surface thin film flows driven by gravity over undulated substrate

Zhaomiao LIU, Xin LIU, Guobin WANG, Hong LIAO,

Journal Article

Towards Cr(VI)-free anodization of aluminum alloys for aerospace adhesive bonding applications: A review

Shoshan T. Abrahami, John M. M. de Kok, Herman Terryn, Johannes M. C. Mol

Journal Article

Combination form analysis and experimental study of mechanical properties on steel sheet glass fiber

Journal Article

Full-band error control and crack-free surface fabrication techniques for ultra-precision fly cutting

F. H. ZHANG, S. F. WANG, C. H. AN, J. WANG, Q. XU

Journal Article

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

Journal Article

Subcellular distribution and chemical form of Pb in hyperaccumulator

Yanqun ZU,Yuan LI,Huan MIN,Fangdong ZHAN,Li QIN,Jixiu WANG

Journal Article

Generation of closed-form inverse kinematics for reconfigurable robots

ZHAO Jie, WANG Weizhong, GAO Yongsheng, CAI Hegao

Journal Article

New Development of Double Glow Plasma Surface Metallurgy Technology

Xu Zhong,Zhang Gaohui,Zhang Pingze,Zhang Yanmei,Chi Chengzhong,Yuan Qinglong

Journal Article

Virtual Corporation Is a New Form of Enterprise for Knowledge Economy

Li Xin,Li Ji

Journal Article

Fabrication of form stable NaCl-Al2O3 composite for thermal energy storage by cold sintering process

Bilyaminu Suleiman, Qinghua Yu, Yulong Ding, Yongliang Li

Journal Article

Cell-free systems in the new age of synthetic biology

Fernando Villarreal,Cheemeng Tan

Journal Article