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Research on Social Risk of the Massing Crowd in Public Venues

Li Jianfeng,Liu Mao,Sui Xiaolin

Strategic Study of CAE 2007, Volume 9, Issue 6,   Pages 88-93

Abstract: In the end,  the F - N curve will be achieved.To use the F - N curve,  it is able to analyse the social risk of crowd massing venues.

Keywords： crowd massing risk     social risk     F-N curve     quantitative risk analysis    

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Pressure drop analysis on the positive half-cell of a cerium redox flow battery using computational fluid dynamics: Mathematical and modelling aspects of porous media

Fernando F. Rivera, Berenice Miranda-Alcántara, Germán Orozco, Carlos Ponce de León, Luis F. Arenas

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 2,   Pages 399-409 doi: 10.1007/s11705-020-1934-9

Abstract: Description of electrolyte fluid dynamics in the electrode compartments by mathematical models can be a powerful tool in the development of redox flow batteries (RFBs) and other electrochemical reactors. In order to determine their predictive capability, turbulent Reynolds-averaged Navier-Stokes (RANS) and free flow plus porous media (Brinkman) models were applied to compute local fluid velocities taking place in a rectangular channel electrochemical flow cell used as the positive half-cell of a cerium-based RFB for laboratory studies. Two different platinized titanium electrodes were considered, a plate plus a turbulence promoter and an expanded metal mesh. Calculated pressure drop was validated against experimental data obtained with typical cerium electrolytes. It was found that the pressure drop values were better described by the RANS approach, whereas the validity of Brinkman equations was strongly dependent on porosity and permeability values of the porous media.

Keywords： CFD simulation     porous media     porous electrode     pressure drop     redox flow battery    

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Interpolation of a spline developable surface between a curve and two rulings

Alicia CANTÓN,Leonardo FERNÁNDEZ-JAMBRINA

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 3,   Pages 173-190 doi: 10.1631/FITEE.14a0210

Abstract: paper we address the problem of interpolating a spline developable patch bounded by a given spline curveTo complete the boundary of the patch, a second spline curve is to be given.

Keywords： Developable surfaces     Spline surfaces     Blossoms    

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The S-N Curve Fitted by the Least Square Method Considering the Effect of Length of the Confidence Interval

Yang Xiaohua,Jin Ping,Yao Weixing

Strategic Study of CAE 2004, Volume 6, Issue 4,   Pages 41-43

Abstract:

The S-N curve is the base of calculating fatigue structural life.The calculating results show that the S-N curve which is gained by the least square method consideringthe effect of length of the confidence interval is more reliable and secure than the S-N curve which

Keywords： confidence interval     fatigue life     least square method     S-N curve    

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Synthesis and properties of water-soluble 1,9-dialkyl-substituted BF

Dan Wu, Gonzalo Durán-Sampedro, Donal F. O’Shea

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 1,   Pages 97-104 doi: 10.1007/s11705-019-1828-x

Abstract: Bis-alkylsulfonic acid and polyethylene glycol (PEG)-substituted BF azadipyrromethenes have been synthesized by an adaptable and versatile route. Only four synthetic stages were required to produce the penultimate fluorophore compounds, containing either two alcohol or two terminal alkyne substituents. The final synthetic step introduced either sulfonic acid or polyethylene glycol groups to impart aqueous solubility. Sulfonic acid groups were introduced by reaction of the bis-alcohol-substituted fluorophore with sulfur trioxide, and a double Cu(I)-catalyzed cycloaddition reaction between the bis-alkyne fluorophore and methoxypolyethylene glycol azide yielded a neutral bis-pegylated derivative. Both fluorophores exhibited excellent near-infrared (NIR) photophysical properties in methanol and aqueous solutions. Live cell microscopy imaging revealed efficient uptake and intracellular labelling of cells for both fluorophores. Their simple synthesis, with potential for last-step structural modifications, makes the present NIR-active azadipyrromethene derivatives potentially useful as NIR fluorescence imaging probes for live cells.

Keywords： NIR-fluorophores     live cell imaging     NIR-AZA    

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Compiling of comprehensive data of human infections with novel influenza A (H7N9) virus

Ying Wu, George F. Gao

Frontiers of Medicine 2013, Volume 7, Issue 3,   Pages 275-276 doi: 10.1007/s11684-013-0285-z

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Frequency-domain Analysis of ECG Signals

Tu Chengyuan,Zeng Yanjun,Li Shuxin

Strategic Study of CAE 2002, Volume 4, Issue 12,   Pages 66-70

Abstract:

A new simple approach to effectively detect QRS — T complexes in ECG curve is described, soas to easily get the P-wave (when AF does not happen) or the f-wave (when AF happens).

Keywords： ECG curve     P-wave     f-wave     AF (atrial fibrillation)     histogram     power spectrum     autocorrelation     cross-correlation    

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Best operating conditions to produce hydroxyapatite nanoparticles by means of a spinning disc reactor

F. D’ Intino,B. de Caprariis,M.L. Santarelli,N. Verdone,A. Chianese

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 2,   Pages 156-160 doi: 10.1007/s11705-014-1427-9

Abstract: In this work, Mg doped hydroxyapatite (Mg-HAP) nanoparticles were produced by a reaction-precipitation process by using a spinning disc reactor (SDR) at high rotational speed. The production process of these nanoparticles consisted of the neutralization reaction between two aqueous solutions of calcium chloride and ammonia orthophosphate at room temperature. By operating at pH= 10, a high purity Mg-HAP nanoparticles were obtained. In particular, they were 51 nm in average size when the two reagents were fed over the disc symmetrically at 3 cm from the disc center and a rotational speed of the disc reactor equal to 1400 r/min was adopted.

Keywords： hydroxyapatite     nanoparticles     spinning disc reactor    

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Analysis of Calendar Life of Aircraft Structure on Corrosion Environment

Yang Xiaohua,Yao Weixing,Chen Yueliang

Strategic Study of CAE 2002, Volume 4, Issue 6,   Pages 33-35

Abstract: On the basis of dynamic S-N curve, traditional nominal stress-method and Miner theory, this paper put

Keywords： aircraft structure     calendar life     corrosion     fatigue     S-N curve    

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Experiment study on fatigue property of concrete filled steel pipe K-joints

Zhong Xingu,Yang Sheng,Shi Weihua

Strategic Study of CAE 2011, Volume 13, Issue 9,   Pages 97-100

Abstract: Moreover, the S—N curve of concrete filled steel pipe K-joints proposed by this paper would be

Keywords： concrete filled steel pipe K-joints     fatigue property     S—N curve    

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Cyclic stress-strain behavior of structural steel with yield-strength up to 460 N/mm

Yiyi CHEN,Wei SUN,Tak-Ming CHAN

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 2,   Pages 178-186 doi: 10.1007/s11709-014-0245-y

Abstract: hysteresis material behavior of structural carbon steel with nominal yield strength between 235 to 420 N/and captured further the experimental behavior of test specimens with nominal yield strength of 460 N/

Keywords： constitutive model     finite element analysis     hysteresis curve     Ramberg-Osgood equation    

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Is there an inverted U-shaped curve?Empirical analysis of the Environmental Kuznets Curve in agrochemicals

Fei LI,Suocheng DONG,Fujia LI,Libiao YANG

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 2,   Pages 276-287 doi: 10.1007/s11783-014-0700-y

Abstract: cointegration, and panel-based dynamic ordinary least squares to investigate the Environmental Kuznets CurveThis relationship takes on the inverted U-shaped Environmental Kuznets Curve, and the value of the turning

Keywords： Environmental Kuznets Curve     agrochemical     China    

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Synthesis of a cardanol-amine derivative using an ionic liquid catalyst

E. da Silva, Roselayne F. Furtado, Zengshe Liu, H. N. Cheng

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 3,   Pages 425-431 doi: 10.1007/s11705-016-1581-3

Abstract: Cardanol is a biobased raw material derived from cashew nut shell liquid. In order to extend its utility, new derivatives and additional applications are useful. In this work cardanol was first epoxidized, and a novel aniline derivative prepared from it under mild reaction conditions with the help of an ionic liquid catalyst. The reaction chemistry was studied by using nuclear magnetic resonance. The resulting aminohydrin adduct showed antioxidant property and should also be a useful synthon for further reactions. As an example, the aminohydrin was shown to undergo a condensation reaction with formaldehyde to form a prepolymer, which could be further reacted to form thermosetting resins.

Keywords： cardanol     epoxidation     aminohydrin     aniline     ionic liquid     aniline-formaldehyde    

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Avian influenza A: an avian influenza virus from low pathogenic to highly pathogenic

Liu, Haixia Xiao, Lianpan Dai, Di Liu, Jianjun Chen, Xiaopeng Qi, Yuhai Bi, Yi Shi, George F.

Frontiers of Medicine 2021, Volume 15, Issue 4,   Pages 507-527 doi: 10.1007/s11684-020-0814-5

Abstract: The avian influenza A (H7N9) virus is a zoonotic virus that is closely associated with live poultry marketsFive waves of the H7N9 influenza epidemic occurred in China between March 2013 and September 2017.H7N9 with low-pathogenicity dominated in the first four waves, whereas highly pathogenic H7N9 influenzaHere, we review the characteristics of the H7N9 viruses that were identified while controlling the spreadThese data provide tools for minimizing the future threat of H7N9 and other emerging and re-emerging

Keywords： H7N9     HPAIV     epidemiology     clinical features     pathogenesis     hemagglutinin     immunity     vaccine    

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Antifungal and antibacterial functions of medicinal leech recombinant destabilase-lysozyme and its heated-up derivative

YUDINA, Danyang GUO, N. F. PISKUNKOVA, I. B. PAVLOVA, L. L. ZAVALOVA, I. P. BASKOVA

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 2,   Pages 203-209 doi: 10.1007/s11705-012-1277-2

Abstract: Antifungal activity of recombinant medicinal leech destabilase-lysozyme (rec.Dest-Lys) was investigated by using fungi: , and , including yeasts and . Its antibacterial activity was investigated on gram-negative bacteria . These activities were assessed by radial agar diffusion assay, and scanning and transmission electron microscopy. Therefore, destabilase-lysozyme not only is endo-isopeptidase and lysozyme, but also has antifungal and antibacterial activities. Muramidase activity of rec.Dest-Lys disappeared after heat-treating at 90°C for 50 min without the loss of its antimicrobial activity. Furthermore we showed for the first time that the heated-up derivative of rec.Dest-Lys exhibited more potent activities against the above enumerated fungi and gram-negative bacteria than original protein.

Keywords： recombinant destabilase-lysozyme (rec.Dest-Lys)     antimicrobial activity     antifungal activity     medicinal leech     heated-up derivative of rec.Dest-Lys (T-rec.Dest-Lys)    

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Title Author Date Type Operation

Research on Social Risk of the Massing Crowd in Public Venues

Li Jianfeng,Liu Mao,Sui Xiaolin

Journal Article

Pressure drop analysis on the positive half-cell of a cerium redox flow battery using computational fluid dynamics: Mathematical and modelling aspects of porous media

Fernando F. Rivera, Berenice Miranda-Alcántara, Germán Orozco, Carlos Ponce de León, Luis F. Arenas

Journal Article

Interpolation of a spline developable surface between a curve and two rulings

Alicia CANTÓN,Leonardo FERNÁNDEZ-JAMBRINA

Journal Article

The S-N Curve Fitted by the Least Square Method Considering the Effect of Length of the Confidence Interval

Yang Xiaohua,Jin Ping,Yao Weixing

Journal Article

Synthesis and properties of water-soluble 1,9-dialkyl-substituted BF

Dan Wu, Gonzalo Durán-Sampedro, Donal F. O’Shea

Journal Article

Compiling of comprehensive data of human infections with novel influenza A (H7N9) virus

Ying Wu, George F. Gao

Journal Article

Frequency-domain Analysis of ECG Signals

Tu Chengyuan,Zeng Yanjun,Li Shuxin

Journal Article

Best operating conditions to produce hydroxyapatite nanoparticles by means of a spinning disc reactor

F. D’ Intino,B. de Caprariis,M.L. Santarelli,N. Verdone,A. Chianese

Journal Article

Analysis of Calendar Life of Aircraft Structure on Corrosion Environment

Yang Xiaohua,Yao Weixing,Chen Yueliang

Journal Article

Experiment study on fatigue property of concrete filled steel pipe K-joints

Zhong Xingu,Yang Sheng,Shi Weihua

Journal Article

Cyclic stress-strain behavior of structural steel with yield-strength up to 460 N/mm

Yiyi CHEN,Wei SUN,Tak-Ming CHAN

Journal Article

Is there an inverted U-shaped curve?Empirical analysis of the Environmental Kuznets Curve in agrochemicals

Fei LI,Suocheng DONG,Fujia LI,Libiao YANG

Journal Article

Synthesis of a cardanol-amine derivative using an ionic liquid catalyst

E. da Silva, Roselayne F. Furtado, Zengshe Liu, H. N. Cheng

Journal Article

Avian influenza A: an avian influenza virus from low pathogenic to highly pathogenic

Liu, Haixia Xiao, Lianpan Dai, Di Liu, Jianjun Chen, Xiaopeng Qi, Yuhai Bi, Yi Shi, George F.

Journal Article

Antifungal and antibacterial functions of medicinal leech recombinant destabilase-lysozyme and its heated-up derivative

YUDINA, Danyang GUO, N. F. PISKUNKOVA, I. B. PAVLOVA, L. L. ZAVALOVA, I. P. BASKOVA

Journal Article