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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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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 difficultto design and prepare particles with suitable quality for the gene supporting media.Au particles of 50 nm, 50–200 nm, and 150–400 nm were obtained in batch operation, single-jet, and double-jetMoreover, 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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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.residence times, the PSDFs of the two flames were similar, and the toluene flame showed a larger particle sizedistribution 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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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 dieselIt was found that the geometric mean diameters of particles from SME and A-diesel were lower than thatCompared to diesel fuel, SME emitted more ultra-fine particles at rated speed while emitting less ultra-fineparticles at maximum speed.

Keywords： oxygenated fuel     diesel particulate matter     particle size distribution     biofuel    

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The horizontal distribution of a flight of steps when　the β-particles fly across the copper narrow slot

Zhu Yongqiang,Hao Jianyu

Strategic Study of CAE 2008, Volume 10, Issue 8,   Pages 81-86

Abstract: Its experimental method is using the characteristics that β-particles of 90Sr source in differentfly across the copper narrow slots with different widths (thickness is 8 mm)and find that the β-particleshave the horizontal movement tendency no matter what energy and momentum the β-particles have,and when they fly across the copper narrow step there is the distribution of a flight of steps.The reason may be that β-particles have the horizontal amplitude A and the interaction of energy

Keywords： the horizontal vibration of β-particles     the width of copper narrow slot     horizontal distribution of    

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Characteristics and mixing state of S-rich particles in haze episodes in Beijing

Jun Hu, Fengkui Duan, Kebin He, Yongliang Ma, Shuping Dong, Xiande Liu

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 5, doi: 10.1007/s11783-016-0861-y

Abstract: Four types of S-rich particles are identified by SEM/FESEM-EDX With on-line observation, characteristicsof S-rich particles are discovered Intensities of formation of S-rich particles are seasonally differentFour major types of S-rich particles, including secondary CaSO particles (mainly observed in summer), S-rich mineral particles (SRM), S-rich water droplets (SRW) and (C, O, S)-rich particles (COS) werethat (C, O, S)-rich particles had two major mixing states in different seasons.

Keywords： S-rich particles     Morphology     Element distribution     Mixing state    

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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 mayand its distribution of four standard fire smoke were measured by SMPS.The 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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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 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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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: spectrometer combining electrical mobility sizing and aerodynamic sizing was developed to measure aerosol sizeIt includes three instruments which cover different size ranges (a nano scanning mobility particle sizerdistribution.Aerodynamic size distributions reported by the APS were converted to mobility size distributions by applyingDistributions measured by the RSMPS and APS were consistent in the overlap size range of 550 – 700 nm

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

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Particle size distributions, PM

Can DONG, Lingxiao YANG, Chao YAN, Qi YUAN, Yangchun YU, Wenxing WANG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 1,   Pages 55-65 doi: 10.1007/s11783-012-0411-1

Abstract: In this study, we collected particles with aerodynamic diameter≤2.5 μm (PM ) from three different publicWater-soluble inorganic ions of PM and particle size distributions were also measured.Diurnal particle number size distributions were different, while the maximum volume concentrations allAmong others, , and were found to be the dominant water-soluble ions of both indoor and outdoor particles

Keywords： indoor air quality     indoor/outdoor ratios     size distributions     particles with aerodynamic diameter≤2.5 μm    

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Size-controlled green synthesis of silver nanoparticles assisted by L-cysteine

Wenchao Zhang,Lin Zhang,Yan Sun

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 4,   Pages 494-500 doi: 10.1007/s11705-015-1527-1

Abstract: A green and size-controlled synthesis of silver nanoparticles (Ag NPs) in aqueous solution with the assistanceThe size of Ag NPs decreases with the increase of L-cysteine concentration, and thus can be controlledTEM analysis shows that Ag NPs with an average size of 3 nm can be produced in the presence of 1.0 mmol/L L-cysteine, about one sixth of the size of Ag NPs obtained in the absence of L-cysteine (17 nm).

Keywords： nanoparticles     silver     L-cysteine     size distribution     synthesis    

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PM10 emissions from industrial coal-fired chain-grate boilers

Xinghua Li, Junzan Han, Lei Duan

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 6, doi: 10.1007/s11783-017-0966-y

Abstract: low-pressure impactor, and a Dekati Low Pressure Impactor were applied to determine mass and number sizeThe mass size distribution of PM generated from coal-fired chain-grate boilers generally displays abimodal distribution that contains a submicron mode and a coarse mode.

Keywords： coal-fired chain-grate boiler     PM10     size distribution     particulate emission control devices     size-dependent collection efficiency    

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Simulation of bubble column reactors using CFD coupled with a population balance model

Tiefeng WANG

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 2,   Pages 162-172 doi: 10.1007/s11705-009-0267-5

Abstract: Due to the importance of the bubble behavior, the bubble size distribution must be considered in theThe population balance model (PBM) is an effective approach to predict the bubble size distribution,

Keywords： column     computational fluid dynamics     bubble breakup and coalescence     population balance model     bubble sizedistribution    

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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: Secondly, 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 distribution(PSD) can be established, and an algorithm developed to determine the distribution of turbidity.Experiments 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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Title Author Date Type Operation

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

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

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

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

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

The horizontal distribution of a flight of steps when　the β-particles fly across the copper narrow slot

Zhu Yongqiang,Hao Jianyu

Journal Article

Characteristics and mixing state of S-rich particles in haze episodes in Beijing

Jun Hu, Fengkui Duan, Kebin He, Yongliang Ma, Shuping Dong, Xiande Liu

Journal Article

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

Shu Xueming,Zheng Kui,Yuan Hongyong,Yao Bin

Journal Article

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

Christopher BECKETT, Charles AUGARDE

Journal Article

The Influence of Flow Velocity on Response Sensitivity of Smoke Detectors

Xie Qiyuan,Su Guofeng,Yuan Hongyong,Zhang Yongming

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

Particle size distributions, PM

Can DONG, Lingxiao YANG, Chao YAN, Qi YUAN, Yangchun YU, Wenxing WANG

Journal Article

Size-controlled green synthesis of silver nanoparticles assisted by L-cysteine

Wenchao Zhang,Lin Zhang,Yan Sun

Journal Article

PM10 emissions from industrial coal-fired chain-grate boilers

Xinghua Li, Junzan Han, Lei Duan

Journal Article

Simulation of bubble column reactors using CFD coupled with a population balance model

Tiefeng WANG

Journal Article

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

Shouxuan QIN, Xiaoshu CAI, Li MA

Journal Article