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Research on evaluation of extinguishing concentration of superfine ammonium phosphate extinguishing agent

Yin Zhiping,Liu Aihua,Pan Renming

Strategic Study of CAE 2008, Volume 10, Issue 7,   Pages 90-95

Abstract:

Extinguishing concentration measurement experiments in the cup burnerThe fitting curves of particle concentration with laser attenuation rate and the extinguishing concentrationThe extinguishing mass concentration of two super fine agents were measured in cup burner.concentration were 32.9 g/m3 and 41.6 g/m3 respectively.Extinguishing ability of the former was 25 % to 30 % higher than that of the latter.

Keywords： laser attenuation measurement     filtering and weighing method     superfine particle extinguishing agent     extinguishing concentration    

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Research of the effect of the component proportion in the new water mist additive to extinguishing performance

Ji Huanle,Zhang Qingsong,Wu Binbin,Liang Tianshui

Strategic Study of CAE 2012, Volume 14, Issue 11,   Pages 82-87

Abstract: By adjusting the concentration of substance in the additives and conducting the experiment under thepressure of 0.3 MPa, 0.5 MPa and 0.7 MPa, extinguishing time, flame shape and temperature are measured

Keywords： water mist additive     fire fighting performance     additive proportion     fire extinguishing mechanism    

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Localized high-concentration electrolytes for lithium metal batteries: progress and prospect

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1354-1371 doi: 10.1007/s11705-022-2286-4

Abstract: Here, we provide an overview of the recent developments of localized high-concentration electrolytesFirstly, the solvation structures and physicochemical properties of localized high-concentration electrolytesThen, the developments of localized high-concentration electrolytes to suppress the formation of dendriticLastly, the remaining challenges and further possible research directions for localized high-concentration

Keywords： high-concentration electrolyte     localized high-concentration electrolyte     lithium metal battery     solid    

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The Influence of Compositions of Water Aerosol Fire-extinguishing Agent on Its Combustion Rate

Zhou Xiaomeng,Liao Guangxuan,Pan Renming

Strategic Study of CAE 2006, Volume 8, Issue 1,   Pages 72-76

Abstract:

The water aerosol fire-extinguishing agent (WAE) is a new generation of Halon replacement.So, to WAE, the combustion rate has an important effect on the fire extinguishing efficiency.

Keywords： fire extinguishing agent     aerosol     Halon replacement     combustion rate    

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PM concentration declining saves health expenditure in China

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 7, doi: 10.1007/s11783-023-1690-4

Abstract:

● Monthly hospitalization expenses are sensitive to increases in PM2.5 exposure.

Keywords： Air pollution     Health expenditure     PM2.5 concentration     Economic impact     Heterogeneous effect    

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The Summarization of the Investigation on Coal Mine Fire Prevention & Fire Extinguishing Techniques in

Xian Xuefu,Wang Hongtu,Jiang Deyi,Liu Baoxian

Strategic Study of CAE 2001, Volume 3, Issue 12,   Pages 28-32

Abstract: control of exogenous fire beginnings, decision-making support system of mine fire prevention and fire extinguishing

Keywords： coal mine fire     fire prevention & fire extinguishing techniques     exogenous fire     coal spontaneous combustion    

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Parametric equations for notch stress concentration factors of rib–deck welds under bending loading

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3,   Pages 595-608 doi: 10.1007/s11709-021-0720-1

Abstract: effective notch stress approach for evaluating the fatigue strength of rib–deck welds requires notch stress concentrationTo improve the efficiency of the approach, the notch stress concentration factors for three typical fatigue-crackingto investigate the effects of multiple geometric parameters of a rib–deck weld on the notch stress concentrationregression analysis was performed to obtain the optimal regression functions for predicting the notch stress concentrationThe notch stress concentration factors estimated from the developed formulas show agree well with the

Keywords： notch stress concentration factor     rib–deck weld     parametric analysis     regression analysis     parametric    

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Self-extinguishing and transparent epoxy resin modified by a phosphine oxide-containing bio-based derivative

Gang Tang, Ruiqing Zhao, Dan Deng, Yadong Yang, Depeng Chen, Bing Zhang, Xinliang Liu, Xiuyu Liu

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 5,   Pages 1269-1280 doi: 10.1007/s11705-021-2042-1

Abstract: A phosphine oxide-containing bio-based curing agent was synthesized by addition reaction between furan derivatives and diphenylphosphine oxide. The molecular structure of the as-prepared bio-based curing agent was confirmed by Fourier transform infrared spectroscopy and nuclear magnetic resonance spectroscopy. Dynamic mechanical analysis results indicated that with the increase of bio-based curing agent content, the glass transition temperature of epoxy/bio-based curing agent composites decreased, which was related to the steric effect of diphenylphosphine oxide species that possibly hinder the curing reaction as well as the reduction in the cross-linking density by mono-functional N H. By the addition of 7.5 wt-% bio-based curing agent, the resulting epoxy composite achieved UL-94 V-0 rating, in addition to limiting oxygen index of 32.0 vol-%. With the increase of content for the bio-based curing agent, the peak of heat release rate and total heat release of the composites gradually decreased. The bio-based curing agent promoted the carbonization of the epoxy matrix, leading to higher char yield with good thermal resistance. The high-quality char layer served as an effective barrier to retard the diffusion of decomposition volatiles and oxygen between molten polymers and the flame. This study provides a renewable strategy for fabricating flame retardant and transparent epoxy thermoset.

Keywords： epoxy resin     flame retardant     furan derivative     diphenylphosphine oxide    

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Effect of electrolyte concentration on the tribological performance of MAO coatings on aluminum alloys

Chao Wang, Jun Chen, Jihua He, Jing Jiang, Qinyong Zhang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 6,   Pages 1065-1071 doi: 10.1007/s11705-019-1909-x

Abstract: In order to investigate the effect of the electrolyte concentration on the properties of MAO coatings

Keywords： aluminum alloy     micro-arc oxidation     coating     electrolyte concentration     tribological performance    

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Diagnostic evaluation of plasma aldosterone concentration to plasma renin activity ratio in primary aldosteronism

ZHANG Huilan, WANG Daowen

Frontiers of Medicine 2008, Volume 2, Issue 1,   Pages 11-14 doi: 10.1007/s11684-008-0003-4

Abstract: Using the plasma aldosterone concentration to plasma renin activity ratio (PAC/PRA ratio) as the screeningThe plasma aldosterone concentration (PAC) and plasma renin activity (PRA) levels were measured by radioimmunoassay
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Effects of gradient concentration on the microstructure and electrochemical performance of LiNi

Wenming Li, Weijian Tang, Maoqin Qiu, Qiuge Zhang, Muhammad Irfan, Zeheng Yang, Weixin Zhang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 6,   Pages 988-996 doi: 10.1007/s11705-020-1918-9

Abstract: The design of gradient concentration (GC) particles with Ni-rich inside and Mn-rich outside is proved

Keywords： gradient concentration     Ni-rich     LiNi0.6Co0.2-Mn0.2O2     electrochemical    

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Study of simultaneous saccharification and fermentation for steam exploded wheat straw to ethanol

LUO Peng, YANG Chuanmin, LIU Zhong, WANG Gaosheng

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 4,   Pages 447-451 doi: 10.1007/s11705-008-0069-1

Abstract: The effects of reaction temperature, substrate concentration, initial fermentation liquid pH value andand yield was substrate concentration, enzyme loading, initial fermentation liquid pH value and reactionThe optimal SSF conditions were: reaction temperature, 35°C; substrate concentration, 100 g·L; initialUnder these conditions, the ethanol concentration increased with reaction time, and after 72 h, ethanolwas obtained in 65.8% yield with a concentration of 22.7 g·L.

Keywords： optimal SSF     substrate concentration     optimum condition     enzyme loading     ethanol concentration    

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Numerical and experimental research of the characteristics of concentration solar cells

Zilong WANG, Hua ZHANG, Binlin DOU, Weidong WU, Guanhua ZHANG

Frontiers in Energy 2021, Volume 15, Issue 2,   Pages 279-291 doi: 10.1007/s11708-019-0637-8

Abstract: High concentration photovoltaic systems (HCPVs) combining triple-junction InGaP/lnGaAs/Ge solar cellsA paraboloidal concentrator with a secondary optic system and a concentration ratio in the range of 100X(YXS) were used as comparison samples in a further comparative study at different concentration ratioswhile the cell efficiency ( ) of the solar cells increases first and then decreases with increasing concentrationanalysis and discussion regarding the influence of the relevant parameters on the performance of high concentration

Keywords： concentration     three-junction solar cell     mathematical model     electrical properties     solar energy    

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Acid resistance of methanogenic bacteria in a two-stage anaerobic process treating high concentration

ZHOU Xuefei, REN Nanqi

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 1,   Pages 53-56 doi: 10.1007/s11783-007-0010-8

Abstract: experiments were employed to evaluate the performance of anaerobic digestion for the treatment of high concentration

Keywords： pH     Granular     upflow anaerobic     advisable pH     methanogenic    

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Purification and concentration of gluconic acid from an integrated fermentation and membrane process

Parimal Pal, Ramesh Kumar, Subhamay Banerjee

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 1,   Pages 152-163 doi: 10.1007/s11705-018-1721-z

Abstract: A response surface method was used to optimize the purification and concentration of gluconic acid fromwas used for the bioconversion of the glucose in sugarcane juice to gluconic acid (concentration 45 gconditions, such as trans-membrane pressure (TMP), pH, cross-flow rate (CFR) and initial gluconic acid concentration

Keywords： gluconic acid     optimized nanofiltration     green processing     process intensification    

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Title Author Date Type Operation

Research on evaluation of extinguishing concentration of superfine ammonium phosphate extinguishing agent

Yin Zhiping,Liu Aihua,Pan Renming

Journal Article

Research of the effect of the component proportion in the new water mist additive to extinguishing performance

Ji Huanle,Zhang Qingsong,Wu Binbin,Liang Tianshui

Journal Article

Localized high-concentration electrolytes for lithium metal batteries: progress and prospect

Journal Article

The Influence of Compositions of Water Aerosol Fire-extinguishing Agent on Its Combustion Rate

Zhou Xiaomeng,Liao Guangxuan,Pan Renming

Journal Article

PM concentration declining saves health expenditure in China

Journal Article

The Summarization of the Investigation on Coal Mine Fire Prevention & Fire Extinguishing Techniques in

Xian Xuefu,Wang Hongtu,Jiang Deyi,Liu Baoxian

Journal Article

Parametric equations for notch stress concentration factors of rib–deck welds under bending loading

Journal Article

Self-extinguishing and transparent epoxy resin modified by a phosphine oxide-containing bio-based derivative

Gang Tang, Ruiqing Zhao, Dan Deng, Yadong Yang, Depeng Chen, Bing Zhang, Xinliang Liu, Xiuyu Liu

Journal Article

Effect of electrolyte concentration on the tribological performance of MAO coatings on aluminum alloys

Chao Wang, Jun Chen, Jihua He, Jing Jiang, Qinyong Zhang

Journal Article

Diagnostic evaluation of plasma aldosterone concentration to plasma renin activity ratio in primary aldosteronism

ZHANG Huilan, WANG Daowen

Journal Article

Effects of gradient concentration on the microstructure and electrochemical performance of LiNi

Wenming Li, Weijian Tang, Maoqin Qiu, Qiuge Zhang, Muhammad Irfan, Zeheng Yang, Weixin Zhang

Journal Article

Study of simultaneous saccharification and fermentation for steam exploded wheat straw to ethanol

LUO Peng, YANG Chuanmin, LIU Zhong, WANG Gaosheng

Journal Article

Numerical and experimental research of the characteristics of concentration solar cells

Zilong WANG, Hua ZHANG, Binlin DOU, Weidong WU, Guanhua ZHANG

Journal Article

Acid resistance of methanogenic bacteria in a two-stage anaerobic process treating high concentration

ZHOU Xuefei, REN Nanqi

Journal Article

Purification and concentration of gluconic acid from an integrated fermentation and membrane process

Parimal Pal, Ramesh Kumar, Subhamay Banerjee

Journal Article