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Study on Particle Size and Its Distribution Function of Standard Fire Smoke

Shu Xueming,Zheng Kui,Yuan Hongyong,Yao Bin

Strategic Study of CAE 2005, Volume 7, Issue 8,   Pages 51-55

Abstract:

Smoke is the important parameter of fire detection, and smoke particle size and its distribution maySMPS) were described and the particle size and its distribution of four standard fire smoke were measuredThe particle size distribution function of smoke were studied by mathematic fitting methods, and theresult of research showed that Logarithm Normal Distribution (LND) could represent the distribution offire smoke particle size.

Keywords： smoke     particle     size     distribution function    

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Soot size distribution in lightly sooting premixed flames of benzene and toluene

Wang LIU, Jiaqi ZHAI, Baiyang LIN, He LIN, Dong HAN

Frontiers in Energy 2020, Volume 14, Issue 1,   Pages 18-26 doi: 10.1007/s11708-020-0663-6

Abstract: The evolution of particle size distribution function (PSDF) of soot in premixed flames of benzene andThe PSDFs of all the test flames exhibited a bimodal distribution, i.e., a small-size nucleation modeand a large-size accumulation mode.It was observed that soot nucleation and particle growth in the benzene flame were stronger than thosesize distribution range and a higher particle volume fraction than the benzene flame.

Keywords： premixed flame     soot     particle size distribution function     benzene     toluene    

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Particle size distribution and shape control of Au nanoparticles used for particle gun

S. Kida, M. Ichiji, J. Watanabe, I. Hirasawa

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 1,   Pages 60-64 doi: 10.1007/s11705-013-1313-x

Abstract: However, the control of particle size distribution (PSD) and shape of Au nanoparticles is too difficultMoreover, in single-jet and double-jet, the mean size of the obtained Au particles increases with the

Keywords： reduction crystallization     particle size distribution     gene transferring media    

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A comparative study of particle size distribution from two oxygenated fuels and diesel fuel

Xiaoyan SHI, Kebin HE, Jie ZHANG, Yongliang MA, Yunshan GE, Jianwei TAN,

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 1,   Pages 30-34 doi: 10.1007/s11783-010-0011-x

Abstract: Particle size and number distributions from a diesel engine fueled with oxygenated fuels and base dieselUltra-fine particle number concentrations of A-diesel were much higher than those of base diesel fuel

Keywords： oxygenated fuel     diesel particulate matter     particle size distribution     biofuel    

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A spectrometer for measuring particle size distributions in the range of 3 nm to 10 μm

Jieqiong LIU,Jingkun JIANG,Qiang ZHANG,Jianguo DENG,Jiming HAO

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 1,   Pages 63-72 doi: 10.1007/s11783-014-0754-x

Abstract: It includes three instruments which cover different size ranges (a nano scanning mobility particle sizer(NSMPS, 3 – 60 nm), a regular scanning mobility particle sizer (RSMPS, 40 – 700 nm), and an aerodynamicparticle sizer (APS, 550 nm – 10 μm)).data from the three instruments into a wide-range size distribution.Aerodynamic size distributions reported by the APS were converted to mobility size distributions by applying

Keywords： spectrometer     particle size distribution     electrical mobility     linear inversion     aerodynamic diameter    

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A novel light fluctuation spectrum method for in-line particle sizing

Shouxuan QIN, Xiaoshu CAI, Li MA

Frontiers in Energy 2012, Volume 6, Issue 1,   Pages 89-97 doi: 10.1007/s11708-012-0176-z

Abstract: This paper discusses two problems in in-line particle sizing when using light fluctuation method.First, by retrieving the ratio of particle concentrations at different time, the intensity of incidentSecondly, by combining spectrum analysis with Gregory’s theory, a multi-sub-size zone model is proposed, with which the relationship between the distribution of turbidity and the particle size distributionExperiments conducted in the laboratory indicate that the measured size distribution of pulverized coal

Keywords： in-line measurement     particle size distribution (PSD)     incident light intensity     particle concentration    

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Structure creation in earthen construction materials: information from dry soil mixtures

Christopher BECKETT, Charles AUGARDE

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 2,   Pages 151-159 doi: 10.1007/s11709-011-0109-7

Abstract: There is increasing interest in the use of earthen construction materials, such as rammed earth, due to their inherent sustainability. These materials have been used by man for thousands of years and some of the earliest examples can be found in China. Features of the structures of these materials arise from the means of production. In particular, in situ earthen construction materials exhibit strong anisotropy due to their layered nature. A more subtle structure effect arises from the way that the earth mixture is deposited. This paper reviews and discusses stratification effects in dry soil mixtures, including some original experimental work, and indicates some links between the features of the dry mixtures and earthen construction materials. Improved understanding of the physical processes in play will allow more accurate specification of these materials in the future, and hence spread their use.

Keywords： rammed earth     stratification     particle size distribution     pore size distribution    

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The size distribution of airborne bacteria and human pathogenic bacteria in a commercial composting plant

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 3, doi: 10.1007/s11783-020-1356-4

Abstract:

•Bacterial concentrations from eight stages were 104–105copies/m3.

Keywords： Size distribution     Airborne bacteria     Biological diversity     Human pathogenic bacteria     Composting plants    

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Effect of Cu-ZSM-5 catalysts with different CuO particle size on selective catalytic oxidation of N,N-Dimethylformamide

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 10, doi: 10.1007/s11783-022-1557-0

Abstract:

● A series of Cu-ZSM-5 catalysts were tested for DMF selective catalytic oxidation.

Keywords： N     N-Dimethylformamide     Selective catalytic oxidation     Cu-ZSM-5     CuO particle size    

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Effect of particle size on coal char----NO reaction

Xiumin JIANG, Xiangyong HUANG, Jiaxun LIU, Chaoqun ZHANG

Frontiers in Energy 2011, Volume 5, Issue 2,   Pages 221-228 doi: 10.1007/s11708-011-0146-x

Abstract: Particle size had a noticeable effect on the magnitude of changes, which was observed on the surfacesurface increased its -NO, pyridine-N-oxide, and -NO functional group contents with a decrease in particlesize.

Keywords： NO reduction     chemisorption     particle size     X-ray photoelectron spectroscopy     density functional theory (    

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Synthesis and characterization of magnesium hydroxide by batch reaction crystallization

Xingfu SONG, Shuying SUN, Dengke ZHANG, Jin WANG, Jianguo YU

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 4,   Pages 416-421 doi: 10.1007/s11705-011-1125-9

Abstract: Magnesium hydroxide with high purity and uniform particle size distribution was synthesized by the directThe particle size distribution, crystal phase, morphology, and surface area of magnesium hydroxide wereThe effects of synthesis conditions on the particle size distribution and water content (filtration cakesize distribution of the product, and sodium chloride improved the crystallization behavior of magnesiumThe ball-like magnesium hydroxides with the particle size distribution of 6.0–30.0 μm and purity higher

Keywords： magnesium hydroxide     direct precipitation method     industrial crystallization     particle size distribution    

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Monte Carlo simulation of the diffusion-limited aggregating process of particle suspension systems

Jiajing XU, Lin ZHANG, Yongjian TANG, Wei DAI, Wenwen SHAN,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 3,   Pages 270-274 doi: 10.1007/s11705-009-0273-7

Abstract: The aggregating process of particle suspension systems is a very universal phenomena and crucial forstructures of aggregates have been clearly demonstrated by the statistical analysis of gyration radius distributionand the existence of a scaling distribution of the reduced cluster size.The fractal dimension of the aggregates drawn from the radial distribution function and structure factorAlso, the gelation transition can only occur in a particle suspension system where the particle volume

Keywords： cluster-cluster aggregation     distribution function     relationship     process     universal    

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Estimation of distribution algorithm enhanced particle swarm optimization for water distribution network

Xuewei QI,Ke LI,Walter D. POTTER

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 2,   Pages 341-351 doi: 10.1007/s11783-015-0776-z

Abstract: The optimization of a water distribution network (WDN) is a highly nonlinear, multi-modal, and constrainedParticle swarm optimization (PSO) has been shown to be a fast converging algorithm for WDN optimizationAn improved estimation of distribution algorithm (EDA) using historic best positions to construct a sampleindicate that the proposed algorithms achieved the literature record minimum (6.081 M$) for the small sizeFor the large size Balerma network, the parallel hybrid achieved a slightly lower minimum (1.921M?)

Keywords： particle swarm optimization (PSO)     diversity control     estimation of distribution algorithm (EDA)     waterdistribution network (WDN)     premature convergence     hybrid strategy    

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Resampling methods for particle filtering: identical distribution, a new method, and comparable study

Tian-cheng LI,Gabriel VILLARRUBIA,Shu-dong SUN,Juan M. CORCHADO,Javier BAJO

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 11,   Pages 969-984 doi: 10.1631/FITEE.1500199

Abstract: procedure that is of both theoretical and practical significance for efficient implementation of the particleFirst, identical distribution (ID) is established as a general principle for the resampling design, whichrequires the distribution of particles before and after resampling to be statistically identical.Third, more than a dozen typical resampling methods are compared via simulations in terms of sample size

Keywords： Particle filter     Resampling     Kullback-Leibler divergence     Kolmogorov-Smirnov statistic    

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The Influence of Flow Velocity on Response Sensitivity of Smoke Detectors

Xie Qiyuan,Su Guofeng,Yuan Hongyong,Zhang Yongming

Strategic Study of CAE 2005, Volume 7, Issue 11,   Pages 76-80

Abstract:

The objective of the work was to evaluate the performance of photoelectric and ionic smoke detectors at different flow velocities through the Fire Emulator/Detector Evaluator ( FE/DE). That was accomplished through a series of experiments at different flow velocity, with the same smoldering cottons put directly at the entrance of the FE/DE and in box, respectively. The experiment results indicate that the sensitivity of the two kinds of smoke detectors decreases sharply while the flow velocity around them increases, with the smoldering cottons in the box. However, for the smoldering cottons at the entrance of FE/DE, the sensitivity of the ionic smoke detector does not fall down as sharply as the photoelectric detector. In this case, ionic detectors show better sensitivity than the photoelectric ones. Accordingly, the ionization smoke detector is more suitable for those locations with high flow velocity.

Keywords： flow velocity     smoke detectors     smoke particle     size distribution of particles    

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Title Author Date Type Operation

Study on Particle Size and Its Distribution Function of Standard Fire Smoke

Shu Xueming,Zheng Kui,Yuan Hongyong,Yao Bin

Journal Article

Soot size distribution in lightly sooting premixed flames of benzene and toluene

Wang LIU, Jiaqi ZHAI, Baiyang LIN, He LIN, Dong HAN

Journal Article

Particle size distribution and shape control of Au nanoparticles used for particle gun

S. Kida, M. Ichiji, J. Watanabe, I. Hirasawa

Journal Article

A comparative study of particle size distribution from two oxygenated fuels and diesel fuel

Xiaoyan SHI, Kebin HE, Jie ZHANG, Yongliang MA, Yunshan GE, Jianwei TAN,

Journal Article

A spectrometer for measuring particle size distributions in the range of 3 nm to 10 μm

Jieqiong LIU,Jingkun JIANG,Qiang ZHANG,Jianguo DENG,Jiming HAO

Journal Article

A novel light fluctuation spectrum method for in-line particle sizing

Shouxuan QIN, Xiaoshu CAI, Li MA

Journal Article

Structure creation in earthen construction materials: information from dry soil mixtures

Christopher BECKETT, Charles AUGARDE

Journal Article

The size distribution of airborne bacteria and human pathogenic bacteria in a commercial composting plant

Journal Article

Effect of Cu-ZSM-5 catalysts with different CuO particle size on selective catalytic oxidation of N,N-Dimethylformamide

Journal Article

Effect of particle size on coal char----NO reaction

Xiumin JIANG, Xiangyong HUANG, Jiaxun LIU, Chaoqun ZHANG

Journal Article

Synthesis and characterization of magnesium hydroxide by batch reaction crystallization

Xingfu SONG, Shuying SUN, Dengke ZHANG, Jin WANG, Jianguo YU

Journal Article

Monte Carlo simulation of the diffusion-limited aggregating process of particle suspension systems

Jiajing XU, Lin ZHANG, Yongjian TANG, Wei DAI, Wenwen SHAN,

Journal Article

Estimation of distribution algorithm enhanced particle swarm optimization for water distribution network

Xuewei QI,Ke LI,Walter D. POTTER

Journal Article

Resampling methods for particle filtering: identical distribution, a new method, and comparable study

Tian-cheng LI,Gabriel VILLARRUBIA,Shu-dong SUN,Juan M. CORCHADO,Javier BAJO

Journal Article

The Influence of Flow Velocity on Response Sensitivity of Smoke Detectors

Xie Qiyuan,Su Guofeng,Yuan Hongyong,Zhang Yongming

Journal Article