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Enhancing the Combustion Performance of Metastable Al@AP/PVDF Nanocomposites by Doping with Graphene Article

Shuwen Chen, De-Yun Tang, Xue-Xue Zhang, Jie-Yao Lyu, Wei He, Peijin Liu, Qi-Long Yan

Engineering 2020, Volume 6, Issue 9,   Pages 1019-1027 doi: 10.1016/j.eng.2020.02.014

Abstract: It was shown that Al@AP/PVDF with 0.2% GO has the greatest density (2.57 g·cm–These values are much higher than those of Al@AP/PVDF (2.00  g·cm–3 andThe inclusion of GO increases the solidstate reaction rate of Al@AP/PVDF and improves the thermal stability@AP/ PVDF.Al@AP/PVDF-GO has a better interfacial contact and particle distribution, which results in an improved

Keywords： Metastable intermixed composites     Al@AP/PVDF nanocomposites     Graphene oxide     Energy output     Combustion    

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Seismic input of NPP & topic of seismic-isolated research for AP1000 nuclear island

Xia Zufeng

Strategic Study of CAE 2013, Volume 15, Issue 4,   Pages 52-56

Abstract: article mainly focuses on a general concept design of nuclear island seismic-isolated foundation for AP1000

Keywords： nuclear power plant     seismic design     AP1000     seismic-isolated foundation    

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Polymeric nanocomposites for electrocaloric refrigeration

Frontiers in Energy 2023, Volume 17, Issue 4,   Pages 450-462 doi: 10.1007/s11708-022-0858-0

Abstract: From an electrocaloric material point of view, electrocaloric nanocomposites may provide a solution toin polymer-based electrocaloric composites and the state-of-the-art cooling devices operating these nanocompositesdevice point of view, it discusses the existing challenges and potential opportunities of electrocaloric nanocomposites

Keywords： nanocomposites     electrocaloric     refrigeration     polymer    

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Polyaniline‒polypyrrole nanocomposites using a green and porous wood as support for supercapacitors

Jian LI, Yue JIAO

Frontiers of Agricultural Science and Engineering 2019, Volume 6, Issue 2,   Pages 137-143 doi: 10.15302/J-FASE-2019257

Abstract:

Wood is an ideal type of support material whose porous structure and surface functional groups are beneficial for deposition of various guest substances for different applications. In this paper, wood is employed as a porous support, combined with two kinds of conductive polymers (i.e., polyaniline (PANI) and polypyrrole (PPy)) using an easy and fast liquid polymerization method. Scanning electron microscope observations indicate that the PANI‒PPy complex consists of nanoparticles with a size of ~20 nm. The interactions between oxygen-containing groups in the wood and the nitrogen composition of PANI‒PPy were verified by Fourier transform infrared spectroscopy. The self-supported PANI‒PPy/wood composite is capable of acting as a free-standing supercapacitor electrode, which delivers a high gravimetric specific capacitance of 360 F·g at 0.2 A·g .

Keywords： wood     polypyrrole     polyaniline     supercapacitors     nanocomposites    

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Immobilization of laccase on organic–inorganic nanocomposites and its application in the removal of phenolic

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 7,   Pages 867-879 doi: 10.1007/s11705-022-2277-5

Abstract: Polydopamine-functionalized nanosilica was synthesized using an inexpensive and easily obtainable raw material, mild reaction conditions, and simple operation. Subsequently, a flexible spacer arm was introduced by using dialdehyde starch as a cross-linking agent to bind with laccase. A high loading amount (77.8 mg∙g‒1) and activity retention (75.5%) could be achieved under the optimum immobilization conditions. Thermodynamic parameters showed that the immobilized laccase had a lower thermal deactivation rate constant and longer half-life. The enhancement of thermodynamic parameters indicated that the immobilized laccase had better thermal stability than free laccase. The residual activity of immobilized laccase remained at about 50.0% after 30 days, which was 4.0 times that of free laccase. Immobilized laccase demonstrated excellent removal of phenolic pollutants (2,4-dichlorophenol, bisphenol A, phenol, and 4-chlorophenol) and perfect reusability with 70% removal efficiency retention for 2,4-dichlorophenol after seven cycles. These results suggested that immobilized laccase possessed great reusability, improved thermal stability, and excellent storage stability. Organic–inorganic nanomaterials have a good application prospect for laccase immobilization, and the immobilized laccase of this work may provide a practical application for the removal of phenolic pollutants.

Keywords： polydopamine     pollutant removal     thermodynamic     phenolic pollutants     immobilized laccase    

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Polyolefin-nanocomposites with special properties by in-situ polymerization

Walter Kaminsky

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 3,   Pages 555-563 doi: 10.1007/s11705-018-1715-x

Abstract:

Exceptionally strong polyolefin nanocomposites are synthesized by in-situ polymerization usingThe resulting polyethylene and polypropylene nanocomposites are characterized by better physical and

Keywords： polyolefin nanocomposites     metallocenes     methylaluminoxane    

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Effects of podocin transfection on CD2AP distribution in HEK293 cells

SHA Yugen, HUANG Songming, ZHANG Aihua, ZHAO Fei, CHEN Ronghua

Frontiers of Medicine 2008, Volume 2, Issue 1,   Pages 35-38 doi: 10.1007/s11684-008-0007-0

Abstract: construct a podocin fluorescence expression vector and observe the effects of podocin transfection on CD2APThe constructed plasmids were transfected into HEK293 cells and its effects on CD2AP distribution wereAfter podocin transfection, CD2AP redistributed from the perinucleus to the cytoplasm in HEK293 cellsIt can be concluded that podocin can recruit CD2AP to redistribute from the perinucleus to the cytoplasm

Keywords： pEGFP-NPHS2 expression     transfection     pEGFP-C2     cytoplasm     digested    

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Effect of protein on PVDF ultrafiltration membrane fouling behavior under different pH conditions: interface

Xudong WANG,Miao ZHOU,Xiaorong MENG,Lei WANG,Danxi HUANG

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 4, doi: 10.1007/s11783-016-0855-9

Abstract: To further determine the fouling behavior of bovine serum albumin (BSA) on different hydrophilic PVDFinteraction was stronger than the BSA–BSA adhesion interaction, and the adhesion force between BSA–BSA-fouled PVDF/PVA membranes was similar to that between BSA–BSA-fouled PVDF/PVP membranes, which indicated that theAt the same pH condition, the PVDF/PVA membrane–BSA adhesion force was smaller than that of PVDF/PVP

Keywords： PVDF membrane     Membrane fouling     Adhesion force     Protein     Interfacial free energy    

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Preparation and properties of gel membrane containing porous PVDF-HFP matrix and cross-linked PEG for

ZHANG Mei, CUI Zhenyu, ZHU Baoku, HAN Gaige, XU Youyi, ZHANG Aiqing

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 1,   Pages 89-94 doi: 10.1007/s11705-008-0011-6

Abstract: polymer electrolyte membrane (Li-GPEM) based on porous poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFPBy immersing the porous PVDF-HFP membrane in liquid electrolyte containing poly(ethylene glycol) diacrylate

Keywords： ethylene     PEGDA     inversion     network     initiator    

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PVDF ultrafiltration membranes of controlled performance via blending PVDF-g-PEGMA copolymer synthesized

Shuai Wang, Tong Li, Chen Chen, Baicang Liu, John C. Crittenden

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 2, doi: 10.1007/s11783-017-0980-0

Abstract: Polyvinylidene fluoride grafted with poly(ethylene glycol) methyl ether methacrylate (PVDF-g-PEGMA) wasPVDF was blended with the copolymer mixture containing PVDF-g-PEGMA, solvent and residual PEGMA underIncreasing the reaction time of PVDF-g-PEGMA causes more PVDF-g-PEGMA and less residual PEGMA to be foundIncremental PVDF-g-PEGMA can dramatically increase the viscosity of the casting solution.The membrane with PVDF-g-PEGMA at 19 h exhibits the best foulant rejection and cleaning recovery due

Keywords： Polyvinylidene fluoride ultrafiltration membrane     Amphiphilic copolymer     Blended modification     High flux     Atomic transfer radical polymerization    

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Preparation and characterization of PVDF-PFSA flat sheet ultrafiltration membranes

Jiquan MA, Junhong ZHAO, Zhongbin REN, Lei LI

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 3,   Pages 301-310 doi: 10.1007/s11705-012-1204-6

Abstract: High performance polyvinylidene fluoride (PVDF) flat sheet ultrafiltration (UF) membranes have been preparedScanning electron microscopy measurements showed that the PVDF-PFSA blend membranes had more macroporesand finger-like structures than the native PVDF membranes.The PVDF-PFSA membrane (5 wt-% PEG400+ 5 wt-% PFSA) had a pure water flux of 141.7 L/m ·h, a BSA rejectionThese properties were greatly superior to those of the native PVDF membrane (pure water flux of 5.6 L

Keywords： polyvinylidene fluoride     perfluorosulfonic acid     polyethylene glycol     flat sheet membrane     ultrafiltration    

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Preparation of lignin/TiO2 nanocomposites and their application in aqueous polyurethane coatings

Dongjie Yang, Shengyu Wang, Ruisheng Zhong, Weifeng Liu, Xueqing Qiu

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 1,   Pages 59-69 doi: 10.1007/s11705-018-1712-0

Abstract: lignin quaternary ammonium salt (LQAS) and TiO has been developed for the preparation of lignin/TiO nanocompositesThe LQAS/TiO nanocomposites contain well-dispersed small particles with excellent ultraviolet (UV) shieldingWhen the LQAS/TiO nanocomposites were blended with WPU, the UV absorbance and the tensile ductility

Keywords： lignin     TiO2     nanocomposite particle     polyurethane film    

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One-pot preparation of graphene oxide magnetic nanocomposites for the removal of tetrabromobisphenol

Liqin JI, Xue BAI, Lincheng ZHOU, Hanchang SHI, Wei CHEN, Zulin HUA

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 3,   Pages 442-450 doi: 10.1007/s11783-013-0515-2

Abstract: These Fe O /GO (MGO) nanocomposites were characterized by transmission electron microscopy.The adsorption thermodynamics of TBBPA on the MGO nanocomposites was determined at 303 K, 313 K, andThe MGO nanocomposites were conveniently separated from the media by an external magnetic field withinThus, the MGO nanocomposites are a promising candidate for TBBPA removal from wastewater.

Keywords： Magnetic     graphene oxide (GO)     adsorption     tetrabromobisphenol A (TBBPA)    

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NIG-AP: a newmethod for automated penetration testing Regular Papers-Research Articles

Tian-yang ZHOU, Yi-chao ZANG, Jun-hu ZHU, Qing-xian WANG

Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 9,   Pages 1277-1298 doi: 10.1631/FITEE.1800532

Abstract: perspective of hackers, we propose a network information gain based automated attack planning (NIG-AP

Keywords： Penetration testing     Reinforcement learning     Classical planning     Partially observable Markov decision process    

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Molecular aspects of MERS-CoV

Al-Ahmed, Jaffar A. Al-Tawfiq

Frontiers of Medicine 2017, Volume 11, Issue 3,   Pages 365-377 doi: 10.1007/s11684-017-0521-z

Abstract:

Middle East respiratory syndrome coronavirus (MERS-CoV) is a betacoronavirus which can cause acute respiratory distress in humans and is associated with a relatively high mortality rate. Since it was first identified in a patient who died in a Jeddah hospital in 2012, the World Health Organization has been notified of 1735 laboratory-confirmed cases from 27 countries, including 628 deaths. Most cases have occurred in Saudi Arabia. MERS-CoV ancestors may be found in Old World bats of the Vespertilionidae family. After a proposed bat to camel switching event, transmission of MERS-CoV to humans is likely to have been the result of multiple zoonotic transfers from dromedary camels. Human-to-human transmission appears to require close contact with infected persons, with outbreaks mainly occurring in hospital environments. Outbreaks have been associated with inadequate infection prevention and control implementation, resulting in recommendations on basic and more advanced infection prevention and control measures by the World Health Organization, and issuing of government guidelines based on these recommendations in affected countries including Saudi Arabia. Evolutionary changes in the virus, particularly in the viral spike protein which mediates virus-host cell contact may potentially increase transmission of this virus. Efforts are on-going to identify specific evidence-based therapies or vaccines. The broad-spectrum antiviral nitazoxanide has been shown to have in vitro activity against MERS-CoV. Synthetic peptides and candidate vaccines based on regions of the spike protein have shown promise in rodent and non-human primate models. GLS-5300, a prophylactic DNA-plasmid vaccine encoding S protein, is the first MERS-CoV vaccine to be tested in humans, while monoclonal antibody, m336 has given promising results in animal models and has potential for use in outbreak situations.

Keywords： MERS-CoV     Saudi Arabia     spike protein     transmission     evolution     vaccine    

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Title Author Date Type Operation

Enhancing the Combustion Performance of Metastable Al@AP/PVDF Nanocomposites by Doping with Graphene

Shuwen Chen, De-Yun Tang, Xue-Xue Zhang, Jie-Yao Lyu, Wei He, Peijin Liu, Qi-Long Yan

Journal Article

Seismic input of NPP & topic of seismic-isolated research for AP1000 nuclear island

Xia Zufeng

Journal Article

Polymeric nanocomposites for electrocaloric refrigeration

Journal Article

Polyaniline‒polypyrrole nanocomposites using a green and porous wood as support for supercapacitors

Jian LI, Yue JIAO

Journal Article

Immobilization of laccase on organic–inorganic nanocomposites and its application in the removal of phenolic

Journal Article

Polyolefin-nanocomposites with special properties by in-situ polymerization

Walter Kaminsky

Journal Article

Effects of podocin transfection on CD2AP distribution in HEK293 cells

SHA Yugen, HUANG Songming, ZHANG Aihua, ZHAO Fei, CHEN Ronghua

Journal Article

Effect of protein on PVDF ultrafiltration membrane fouling behavior under different pH conditions: interface

Xudong WANG,Miao ZHOU,Xiaorong MENG,Lei WANG,Danxi HUANG

Journal Article

Preparation and properties of gel membrane containing porous PVDF-HFP matrix and cross-linked PEG for

ZHANG Mei, CUI Zhenyu, ZHU Baoku, HAN Gaige, XU Youyi, ZHANG Aiqing

Journal Article

PVDF ultrafiltration membranes of controlled performance via blending PVDF-g-PEGMA copolymer synthesized

Shuai Wang, Tong Li, Chen Chen, Baicang Liu, John C. Crittenden

Journal Article

Preparation and characterization of PVDF-PFSA flat sheet ultrafiltration membranes

Jiquan MA, Junhong ZHAO, Zhongbin REN, Lei LI

Journal Article

Preparation of lignin/TiO2 nanocomposites and their application in aqueous polyurethane coatings

Dongjie Yang, Shengyu Wang, Ruisheng Zhong, Weifeng Liu, Xueqing Qiu

Journal Article

One-pot preparation of graphene oxide magnetic nanocomposites for the removal of tetrabromobisphenol

Liqin JI, Xue BAI, Lincheng ZHOU, Hanchang SHI, Wei CHEN, Zulin HUA

Journal Article

NIG-AP: a newmethod for automated penetration testing

Tian-yang ZHOU, Yi-chao ZANG, Jun-hu ZHU, Qing-xian WANG

Journal Article

Molecular aspects of MERS-CoV

Al-Ahmed, Jaffar A. Al-Tawfiq

Journal Article