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Modern developments related to nanotechnology and nanoengineering of concrete
Konstantin SOBOLEV
Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 2, Pages 131-141 doi: 10.1007/s11709-016-0343-0
Keywords: nanotechnology cement concrete nanoparticle nano-composite nanomodification carbon nanotubes C-S-H gel
Quantification of hydration products in cementitious materials incorporating silica nanoparticles
GOEL,S. K. BHATTACHARYYA,G. MISHRA
Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 2, Pages 162-167 doi: 10.1007/s11709-015-0315-9
Keywords: degree of hydration porosity calcium-silicate-hydrate (C-S-H) silica nanoparticles
Elena CERRO-PRADA,Miguel MANSO,Vicente TORRES,Jesús SORIANO
Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 2, Pages 189-197 doi: 10.1007/s11709-015-0326-6
Keywords: cement composites photocatalytic TiO2 sol-gel C-S-H gel microstructure
Ocar Aurelio MENDOZA REALES,William C.PEARL Jr,Maria D. M. PAIVA,CristianeR.
Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 2, Pages 174-179 doi: 10.1007/s11709-015-0324-8
Keywords: carbon nanotubes surfactant retardation combined water C-S-H
Uncertainty propagation analysis by an extended sparse grid technique
JIA, C. JIANG, C. M. FU, B. Y. NI, C. S. WANG, M. H. PING
Frontiers of Mechanical Engineering 2019, Volume 14, Issue 1, Pages 33-46 doi: 10.1007/s11465-018-0514-x
Keywords: uncertainty propagation analysis extended sparse grid maximum entropy principle extended Gauss integration Rosenblatt transformation high-order moments analysis
A Bayesian modeling approach to bi-directional pedestrian flows in carnival events
S. Q. XIE, S. C. WONG, William H. K. LAM
Frontiers of Engineering Management 2017, Volume 4, Issue 4, Pages 483-489 doi: 10.15302/J-FEM-2017023
Keywords: pedestrian flow model bi-directional interactions empirical studies Bayesian inference
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
Large-aperture potassium dihydrogen phosphate (KDP) crystals are widely used in the laser path of inertial confinement fusion (ICF) systems. The most common method of manufacturing half-meter KDP crystals is ultra-precision fly cutting. When processing KDP crystals by ultra-precision fly cutting, the dynamic characteristics of the fly cutting machine and fluctuations in the fly cutting environment are translated into surface errors at different spatial frequency bands. These machining errors should be suppressed effectively to guarantee that KDP crystals meet the full-band machining accuracy specified in the evaluation index. In this study, the anisotropic machinability of KDP crystals and the causes of typical surface errors in ultra-precision fly cutting of the material are investigated. The structures of the fly cutting machine and existing processing parameters are optimized to improve the machined surface quality. The findings are theoretically and practically important in the development of high-energy laser systems in China.
Keywords: ultra-precision fly cutting large-aperture KDP crystals spatial frequency processing error
Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 10, Pages 1485-1492 doi: 10.1007/s11705-022-2169-8
Keywords: CH4 dissociation Ni–M C–H bond activation charge transfer
Tracking of safety hazards and real-time-prediction model of safety risks on construction sites
LAM,Li Qiming,Michael C. H. YAM,David A. S. CHEW
Strategic Study of CAE 2010, Volume 12, Issue 3, Pages 68-72
This paper aims to explore the tracking approach of safety hazards and real-time-prediction methods of safety risks on construction sites. A literature review of safety issues on construction sites is first conducted. Consequently, a schematic model of tracking safety hazards and real-time prediction of safety risks is formulated and the corresponding methodologies are summarized. This study would provide a possible research approach on method for tracking safety hazards and real-time prediction of safety risks, while serving as a foundation for further study by drawing researchers' attention to the precursor signals of safety hazards on construction sites.
Keywords: construction sites safety risks real-time prediction precursor signals signal detection theory
Design of GPRS Data Terminal Based on S3C2410
Sun Xueyong
Strategic Study of CAE 2007, Volume 9, Issue 12, Pages 94-96
Keywords: GPRS;embedded Internet;S3C2410;SIM100-E
C.S. Chui, K.S. Leung, J. Qin, D. Shi, P. Augat, R.M.Y. Wong, S.K.H. Chow, X.Y. Huang, C.Y.Lai, P.S.H. Yung, L. Qin, W.H. Cheung
Engineering 2021, Volume 7, Issue 3, Pages 386-394 doi: 10.1016/j.eng.2020.02.017
At present, most total knee replacement (TKR) prostheses on the market are designed according to the sizes of Caucasians. However, extensive studies have indicated that human anatomies differ among different ethnicities. A number of reports have indicated that Chinese TKR patients do not match with available prostheses. In this study, computed tomography (CT) images of 52 knees of Chinese men and women were used for anthropometric measurements. Index and geometric measurements were defined and used for correlation analysis. Key parameters from the measurement results were identified. Detailed geometries of knees were measured as coordinates. A deformable three-dimensional (3D) knee model based on anatomical coordinates correlating with the identified key parameters was generated. A prosthesis was then designed according to the analyzed results. Surface matching analysis, bone resection analysis, and cadaveric trials were conducted and compared with commercial products to validate the proposed design. The femoral component designed by this study resulted in the highest accuracy (root mean square point-to-surface (RMS PS), (1.08 ± 0.20) mm) and lowest amount of resected bone volume (27 412 mm3) in comparison with two commercial knee prostheses. This study suggests a new approach for population-based patient-specific femoral prosthesis design. With a single, easily acquired dimension—namely, epicondyle width (ECW)—as input, a patient-specific femoral prosthesis can be designed according to the analyzed measured data and manufactured by additive manufacturing (AM) methods. Meanwhile, the reconstructed femoral condylar surface was compared with the femoral condylar surface in the original CT scanning data. The average RMS PS distance of the reconstructed femoral condylar surface among all data was (1.10 ± 0.18) mm, which is comparable to other statistical shape modeling methods using multiple radiographs as input data. There is a need to develop an anthropometric-based knee prosthesis for the Chinese population. Based on the anthropometry of the Chinese population, our new design fits Chinese patients better and reserves more bone volume compared with current commercial prostheses, which is an essential step toward AM for personalized knee prostheses.
Keywords: Additive manufacturing Population-based design Total knee replacement Knee prosthesis Anthropometric measurement
Haibin HUANG,Gangyu TIAN,Tao WANG,Chao GAO,Jiren YUAN,Zhihao YUE,Lang ZHOU
Frontiers in Energy 2017, Volume 11, Issue 1, Pages 92-95 doi: 10.1007/s11708-016-0432-8
Keywords: double-layer emitter α-Si:H/c-Si heterojunction solar cell short circuit current quantum efficiency current-voltage-temperature
Frontiers in Energy 2021, Volume 15, Issue 3, Pages 744-751 doi: 10.1007/s11708-021-0775-7
Keywords: oxyiodide (BiOI)/ tungsten trioxide (WO3) nano-flake arrays (NFA) photoelectrocatalytic (PEC) H2S splitting H2 S
Modeling of alkali-silica reaction in concrete: a review
WANG, Q.C. SUN, C.H. ZHANG, D.R.J. OWEN
Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 1, Pages 1-18 doi: 10.1007/s11709-012-0141-2
Keywords: alkali-silica reaction (ASR) modeling concrete mesoscopic macroscopic
Development progress of China’s 600 km/h high-speed magnetic levitation train
Frontiers of Engineering Management 2022, Volume 9, Issue 3, Pages 509-515 doi: 10.1007/s42524-022-0199-z
Keywords: 600 km/h high-speed magnetic levitation train development history technological innovation
Title Author Date Type Operation
Modern developments related to nanotechnology and nanoengineering of concrete
Konstantin SOBOLEV
Journal Article
Quantification of hydration products in cementitious materials incorporating silica nanoparticles
GOEL,S. K. BHATTACHARYYA,G. MISHRA
Journal Article
Microstructural and photocatalytic characterization of cement-paste sol-gel synthesized titanium dioxide
Elena CERRO-PRADA,Miguel MANSO,Vicente TORRES,Jesús SORIANO
Journal Article
Effect of a commercial dispersion of multi walled carbon nanotubes on the hydration of an oil well cementing paste
Ocar Aurelio MENDOZA REALES,William C.PEARL Jr,Maria D. M. PAIVA,CristianeR.
Journal Article
Uncertainty propagation analysis by an extended sparse grid technique
JIA, C. JIANG, C. M. FU, B. Y. NI, C. S. WANG, M. H. PING
Journal Article
A Bayesian modeling approach to bi-directional pedestrian flows in carnival events
S. Q. XIE, S. C. WONG, William H. K. LAM
Journal Article
Full-band error control and crack-free surface fabrication techniques for ultra-precision fly cutting of large-aperture KDP crystals
H. ZHANG, S. F. WANG, C. H. AN, J. WANG, Q. XU
Journal Article
A density functional theory study of methane activation on MgO supported NiM cluster: role of M on C–H
Journal Article
Tracking of safety hazards and real-time-prediction model of safety risks on construction sites
LAM,Li Qiming,Michael C. H. YAM,David A. S. CHEW
Journal Article
Population-Based and Personalized Design of Total Knee Replacement Prosthesis for Additive Manufacturing Based on Chinese Anthropometric Data
C.S. Chui, K.S. Leung, J. Qin, D. Shi, P. Augat, R.M.Y. Wong, S.K.H. Chow, X.Y. Huang, C.Y.Lai, P.S.H. Yung, L. Qin, W.H. Cheung
Journal Article
Analysis of the double-layer α-Si:H emitter with different doping concentrations for α-Si:H/c-Si heterojunction
Haibin HUANG,Gangyu TIAN,Tao WANG,Chao GAO,Jiren YUAN,Zhihao YUE,Lang ZHOU
Journal Article
Photoelectrocatalytic generation of H and S from toxic HS by using a novel BiOI/WO nanoflake array photoanode
Journal Article
Modeling of alkali-silica reaction in concrete: a review
WANG, Q.C. SUN, C.H. ZHANG, D.R.J. OWEN
Journal Article