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1. Experimental study on flame radiant heat flux from two heptane storage pools and its application to estimating safety distance

Author:
Zhang, Yongming,   et al.   ; Wan, Huaxian; Gao, Zihe; Ji, Jie;     Show all 4 Authors
Source:
Energy 2019 v.182 pp. 11-20
ISSN:
0360-5442
Subject:
air; fires; fuels; heat transfer; heptane; models; thermal radiation
Abstract:
... This paper presents an experimental study on flame radiant heat fluxes from two identical pool fires in still air. The pool side length and spacing were changed. The fuel mass loss, flame height and radiative heat fluxes onto vertical targets far away from the fires were measured. A new method based on the weighted multi-point source model (WMP model) was developed to calculate the thermal radiati ...
DOI:
10.1016/j.energy.2019.06.006

2. Occurrence and distribution of antibiotic resistance genes in the sediments of the East China Sea bays

Author:
Zhang, Yongming,   et al.   ; Chen, Jiayu; Su, Zhiguo; Dai, Tianjiao; Huang, Bei; Mu, Qinglin; Wen, Donghui;     Show all 7 Authors
Source:
Journal of environmental sciences (China) 2019 v.81 pp. 156-167
ISSN:
1001-0742
Subject:
antibiotic resistance genes; antibiotics; coastal sediments; coasts; enzymes; heavy metals; industrialization; nutrients; oils; pollutants; pollution; quantitative polymerase chain reaction; resistance mechanisms; risk; urbanization; China; East China Sea
Abstract:
... The coastal area of the East China Sea has experienced rapid urbanization and industrialization in China since 1980s, resulting in severe pollution of its environments. Antibiotic resistance genes (ARGs) are regarded as a kind of emerging pollutant with potential high risk. The sediment samples were collected from Hangzhou Bay (HB), Xiangshan Bay (XB), and Taizhou Bay (TB) to investigate the spati ...
DOI:
10.1016/j.jes.2019.01.016

3. Effects of pool size and spacing on burning rate and flame height of two square heptane pool fires

Author:
Zhang, Yongming,   et al.   ; Wan, Huaxian; Gao, Zihe; Ji, Jie; Li, Kaiyuan; Wang, Liangzhu;     Show all 6 Authors
Source:
Journal of hazardous materials 2019 v.369 pp. 116-124
ISSN:
0304-3894
Subject:
air; buildings; burning; energy balance; fires; fuels; heptane; model validation; propane; risk
Abstract:
... The interaction of multiple pool fires might lead to higher burning rate and flame height than single pool fire, raising the possibility of fire ignition and flame spread and increasing the risks to people, buildings and environment. To quantify the burning rate and flame height of multiple pool fires from the view of physical mechanism, this paper presents an experimental study on two identical s ...
DOI:
10.1016/j.jhazmat.2019.01.111

4. Tetra‐proline‐modified calix[4]arene‐bonded silica stationary phase for simultaneous reversed‐phase/hydrophilic interaction mixed‐mode chromatography

Author:
Zhang, Yongming,   et al.   ; Zhang, Wenfen; Zhang, Guangrui; Ba, Xin; Xia, Shaige; Zhao, Wuduo; Yin, Dan; Zhang, Shusheng;     Show all 8 Authors
Source:
Journal of separation science 2019 v.42 no.7 pp. 1374-1383
ISSN:
1615-9306
Subject:
Fourier transform infrared spectroscopy; amines; benzene; energy; hydrophilic interaction chromatography; hydrophilicity; hydrophobicity; nuclear magnetic resonance spectroscopy; nucleosides; nucleotides; phenols; reversed-phase liquid chromatography; rice flour; silica; solutes; thermogravimetry; water solubility
Abstract:
... A new water‐soluble tetra‐proline‐modified calix[4]arene‐bonded silica stationary phase was prepared straightforwardly by an indirect method and characterized by elemental analysis, energy dispersive Spectrometry, solid‐state ¹³C NMR spectroscopy, Fourier‐transform infrared spectroscopy, and thermogravimetric analysis. Due to the simultaneous introduction of polar tetra‐proline and nonpolar calix[ ...
DOI:
10.1002/jssc.201800967

5. Video smoke detection based on deep saliency network

Author:
Zhang, Yongming,   et al.   ; Xu, Gao; Zhang, Qixing; Lin, Gaohua; Wang, Zhong; Jia, Yang; Wang, Jinjun;     Show all 7 Authors
Source:
Fire safety journal 2019 v.105 pp. 277-285
ISSN:
0379-7112
Subject:
data collection; fire detection; neural networks; prediction; quantitative analysis; smoke
Abstract:
... Video smoke detection is a promising fire detection method, especially in open or large spaces and outdoor environments. Traditional video smoke detection methods usually consist of candidate region extraction and classification but lack powerful characterization for smoke. In this paper, we propose a novel video smoke detection method based on deep saliency network. Visual saliency detection aims ...
DOI:
10.1016/j.firesaf.2019.03.004

6. Bioavailable electron donors leached from leaves accelerate biodegradation of pyridine and quinoline

Author:
Zhang, Yongming,   et al.   ; Lu, Qinyuan; Zhang, Chenyuan; Wang, Wenyi; Yuan, Biyue; Rittmann, Bruce E.;     Show all 6 Authors
Source:
The Science of the total environment 2019 v.654 pp. 473-479
ISSN:
0048-9697
Subject:
Ginkgo biloba; Platanus orientalis; biodegradation; chemical oxygen demand; equations; leachates; leaves; oxalates; pyridines; quinoline; ultraviolet radiation
Abstract:
... Fallen leaves of Platanus orientalis and Ginkgo biloba linn were separately immersed in water to obtain leachates that were used as exogenous electron donors for accelerating pyridine and quinoline biodegradations. Leachate addition accelerated the pyridine removal rate by up to 4.4% and 3.6% and the quinoline removal rate by 9.5% and 11%. The rates increased further after the leachates were illum ...
DOI:
10.1016/j.scitotenv.2018.11.129

7. The role of ultrasound-treated sludge for accelerating quinoline mono-oxygenation

Author:
Zhang, Yongming,   et al.   ; Zhang, Yuting; Wang, Youke; Lu, Qinyuan; Zhang, Chenyuan; Yan, Ning; Rittmann, Bruce E.;     Show all 7 Authors
Source:
Journal of environmental management 2019 v.233 pp. 561-566
ISSN:
0301-4797
Subject:
activated sludge; biodegradation; biofilm; biomass; quinoline
Abstract:
... Activated sludge treated by ultrasound was tested as a source of exogenous electron donor to accelerate quinoline mono-oxygenation, which requires an intracellular electron donor (2H). The quinoline-removal rate was proportional to the amount of treated or untreated sludge added in flask experiments, but the best biodegradation kinetics was obtained with a mixture of 25% untreated sludge plus 75% ...
DOI:
10.1016/j.jenvman.2018.12.094

8. Energy harvesting properties of a flapping wing with an adaptive Gurney flap

Author:
Zhang, Yongming,   et al.   ; Zhu, Bing; Huang, Yun;     Show all 3 Authors
Source:
Energy 2018 v.152 pp. 119-128
ISSN:
0360-5442
Subject:
energy; foil; harvesting; mathematical models
Abstract:
... Flapping wing structures have drawn increasing attention for harvesting energy from flowing fluids. This work proposes the application of an adaptive Gurney flap to the trailing end of a flapping wing foil, which actively adjusts the position of a single Gurney flap to be consistently employed on the foil pressure side. The transient two-dimensional numerical simulations are conducted to compare t ...
DOI:
10.1016/j.energy.2018.03.142

9. Acclimation of nitrifying biomass to phenol leads to persistent resistance to inhibition

Author:
Zhang, Yongming,   et al.   ; Zou, Shasha; Yan, Ning; Zhang, Chenyuan; Zhou, Yuwei; Wu, Xueqi; Wang, Jue; Liu, Yang; Rittmann, Bruce E.;     Show all 9 Authors
Source:
The Science of the total environment 2019 pp. 133622
ISSN:
0048-9697
Subject:
acclimation; ammonium nitrogen; biomass; microbial communities; mineralization; nitrification; nitrifying bacteria; phenol; toxic substances; wastewater treatment
Abstract:
... It is common that biological wastewater-treatment processes are exposed to inputs of toxic compounds, such as phenolics. Due to their slow growth rate, nitrifying bacteria are most susceptible to inhibition that can lead to loss of nitrification capacity. Here, a microbial community containing nitrifying bacteria was acclimated to phenol, and it developed resistance to phenol inhibition and mainta ...
DOI:
10.1016/j.scitotenv.2019.133622

10. Tetra-proline modified calix[4]arene bonded silica gel: A novel stationary phase for hydrophilic interaction liquid chromatography

Author:
Zhang, Yongming,   et al.   ; Zhang, Wenfen; Zhang, Yanhao; Lan, Chen; Miao, Ying; Deng, Zhifen; Ba, Xin; Zhao, Wuduo; Zhang, Shusheng;     Show all 9 Authors
Source:
Talanta 2019 v.193 pp. 56-63
ISSN:
0039-9140
Subject:
Fourier transform infrared spectroscopy; aromatic hydrocarbons; energy-dispersive X-ray analysis; hydrophilic interaction chromatography; hydrophilicity; hydrophobicity; nuclear magnetic resonance spectroscopy; nucleosides; phenols; scanning electron microscopy; silica gel; sulfonamides; thermogravimetry
Abstract:
... Calixarenes and their derivatives have been widely used in chromatographic studies due to unique host-guest recognition properties. However, stationary phases in hydrophilic interaction chromatography associated with them have yet to be studied because of their general hydrophobicity. In this paper, a tetra-proline modified calix[4]arene bonded stationary phase (DTPCSP) was prepared and characteri ...
DOI:
10.1016/j.talanta.2018.09.083

11. Nonconventional macromolecular luminogens with aggregation‐induced emission characteristics Part A Polymer chemistry

Author:
Zhang, Yongming,   et al.   ; Zhang Yuan, Wang;     Show all 2 Author
Source:
Journal of polymer science 2017 v.55 no.4 pp. 560-574
ISSN:
0887-624X
Subject:
acidification; oxidation; polymers; tertiary amines
Abstract:
... Nonconventional luminogens without classic conjugated structures have drawn increasing interests owing to their fundamental importance and promising applications. These luminogens generally bear such subgroups as tertiary amine, C = C, C≡N, C = O, OH, ether, and imide. The emission mechanism, however, remains under debate. Different assumptions like oxidation or acidification of tertiary amines, a ...
DOI:
10.1002/pola.28420

12. Experimental and theoretical study on flame front temperatures within ceiling jets from turbulent diffusion flames of n-heptane fuel

Author:
Zhang, Yongming,   et al.   ; Wan, Huaxian; Gao, Zihe; Ji, Jie; Li, Kaiyuan;     Show all 5 Authors
Source:
Energy 2018 v.164 pp. 79-86
ISSN:
0360-5442
Subject:
emissions; energy; fuels; heat transfer; heptane; models; pollutants; public safety; smoke alarms; temperature
Abstract:
... When an uncontrollable energy along with enormous pollutant emissions and high temperatures induced by a diffusion flame is released to a building, the ceiling-mounted thermal and smoke detectors are required to be actuated timely to achieve quick energy detecting, controlling and cooling. The information of ceiling flame length is important in estimating the energy release rate, radiative heat tr ...
DOI:
10.1016/j.energy.2018.08.131

13. Simultaneous anaerobic and aerobic transformations of nitrobenzene

Author:
Zhang, Yongming,   et al.   ; Cao, Lifeng; Zhang, Chenyuan; Zou, Shasha; Zhu, Ge; Li, Naiyu; Rittmann, Bruce E.;     Show all 7 Authors
Source:
Journal of environmental management 2018 v.226 pp. 264-269
ISSN:
0301-4797
Subject:
acetates; anaerobic conditions; aniline; biodegradation; bioreactors; biotransformation; dissolved oxygen; nitrobenzenes; nitrophenols; toxicity
Abstract:
... Aerobic biodegradation of nitrobenzene (NB) produces nitrophenol (NP), which has stronger toxicity than NB. Anaerobic biodegradation of NB produces aniline (AN), which has weaker toxicity, but is a dead-end product in anaerobic conditions. Accumulation of AN should be overcome by coupling anaerobic and aerobic transformations: NB is transformed to AN in an anaerobic zone of the bioreactor, and AN ...
DOI:
10.1016/j.jenvman.2018.08.007

14. Aggregation-Induced Dual Emission and Unusual Luminescence beyond Excimer Emission of Poly(ethylene terephthalate)

Author:
Zhang, Yongming,   et al.   ; Chen, Xiaohong; He, Zihan; Kausar, Fahmeeda; Chen, Gan; Yuan, Wang Zhang;     Show all 6 Authors
Source:
Macromolecules 2018 v.51 no.21 pp. 9035-9042
ISSN:
1520-5835
Subject:
crystal structure; phosphorescence; polycyclic aromatic hydrocarbons; polyethylene terephthalates; temperature
Abstract:
... Pure organic luminogens with fluorescence–room temperature phosphorescence (RTP) dual emission have significant fundamental importance and promising applications. So far, most dual emissive materials, however, are molecular compounds; polymers still remain rare. Herein, we revisited the emission of poly(ethylene terephthalate) (PET), which is weakly luminescent in dilute solutions but becomes high ...
DOI:
10.1021/acs.macromol.8b01743

15. Characterization and high-throughput sequencing of a trichlorophenol-dechlorinating microbial community acclimated from sewage sludge

Author:
Zhang, Yongming,   et al.   ; Song, Jiaxiu; Chen, Lanjuan; Chen, Huidong; Sheng, Fanfan; Xing, Defeng; Li, Ling; Rittmann, Bruce;     Show all 8 Authors
Source:
Journal of cleaner production 2018 v.197 pp. 306-313
ISSN:
0959-6526
Subject:
4-chlorophenol; Bacteroidetes; Clostridium; Dechloromonas; Desulfobulbus; Desulfomicrobium; Desulfovibrio; Geobacter; Syntrophomonas; Syntrophus; acclimation; biomass; community structure; dechlorination; enzymes; genes; high-throughput nucleotide sequencing; microbial communities; microbiome; ribosomal RNA; sewage sludge; sulfate-reducing bacteria; vitamin B12
Abstract:
... This study reports the dechlorination characteristics of acclimated biomass, high-throughput sequencing of the 16Sribosomal RNA (rRNA) gene harbored by the microorganisms, and analysis of the relation between the dechlorination function and community structure. Anaerobic 2,4,6-trichlorophenol (TCP)-dechlorinating biomass was acclimated from active sludge, and it showed a high TCP-dechlorination ra ...
DOI:
10.1016/j.jclepro.2018.06.061

16. Assessment of heat- and cold-related emergency department visits in cities of China and Australia: Population vulnerability and attributable burden

Author:
Zhang, Yongming,   et al.   ; Cheng, Jian; Zhang, Wenyi; Xu, Zhiwei; Bambrick, Hilary; Hu, Wenbiao; Tong, Shilu;     Show all 7 Authors
Source:
Environmental research 2018 v.166 pp. 610-619
ISSN:
0013-9351
Subject:
ambient temperature; cities; cold season; confidence interval; environmental policy; heat; models; morbidity; mortality; relative risk; warm season; Australia; China
Abstract:
... Non-optimal ambient temperature has detrimental impacts on mortality worldwide, but little is known about the difference in population vulnerability to non-optimal temperature and temperature-related morbidity burden between developing and developed countries.We estimated and compared the associations of emergency department visits (EDV) with non-optimal temperature in terms of risk trigger temper ...
DOI:
10.1016/j.envres.2018.06.026

17. Sub-atmospheric bursting ignition of fluorinated ethylene propylene wire insulation

Author:
Zhang, Yongming,   et al.   ; Fang, Jun; Zhao, Siwei; Wang, Jingwu; Xue, Yan; He, Xuanze;     Show all 6 Authors
Source:
Fire safety journal 2018 v.100 pp. 45-50
ISSN:
0379-7112
Subject:
air; aircraft; ethylene; fire resistance; insulating materials; mixing; oxygen; propylene; pyrolysis; surface tension; temperature
Abstract:
... Fire-resistant materials, such as fluorinated ethylene propylene (FEP), are used to coat wires in spacecraft. However, their bursting ignition has not been investigated sufficiently. In this study, the pilot ignition of the FEP wire insulation was assessed in a sub-atmospheric pressure test chamber while applying constant high current. The results revealed that the FEP insulation induced bubble fo ...
DOI:
10.1016/j.firesaf.2018.07.005

18. A facile and general approach for the direct fabrication of N-rGO–metal(metal oxides)–Pt composites as electrocatalyst for oxygen reduction reactions

Author:
Zhang, Yongming,   et al.   ; Chen, Xiaohong; Ning, Zhaoyang; Zhou, Zongshang; Liu, Xundao; Lei, Jianlong; Pei, Supeng;     Show all 7 Authors
Source:
RSC advances 2018 v.8 no.48 pp. 27246-27252
ISSN:
2046-2069
Subject:
catalysts; cobalt; durability; electron transfer; graphene; graphene oxide; iron; manganese; nanoparticles; nitrogen; temperature
Abstract:
... Nitrogen-doped reduced graphene oxide–metal(metal oxides) nanoparticle (N-rGO–M(MO) NPs, M = Fe, MO: M = Co, Mn) composites were prepared through a facile and general method at high temperature (800 °C). M(MO) were well-dispersed and tightly anchored on graphene sheets, which were doped with nitrogen simultaneously and further loaded with Pt nanoparticles. Those results showed a more positive onse ...
DOI:
10.1039/c8ra02448k

19. Competition for molecular oxygen and electron donor between phenol and quinoline during their simultaneous biodegradation

Author:
Zhang, Yongming,   et al.   ; Zou, Shasha; Zhang, Bingbing; Yan, Ning; Zhang, Chenyuan; Xu, Hua; Rittmann, Bruce E.;     Show all 7 Authors
Source:
Process biochemistry 2018 v.70 pp. 136-143
ISSN:
1359-5113
Subject:
biodegradation; biofilm; bioreactors; industrial effluents; oxygen; phenol; quinoline; succinic acid; wastewater
Abstract:
... It is common that phenol and quinoline co-exist in the same industrial wastewater, such as coking wastewater. For both biodegradations, the initial steps are mono-oxygenation reactions, which require two co-substrates: molecular oxygen (O2) and an intercellular electron donor (2H). Competition for O2 and 2H was investigated using a vertical baffled bioreactor (VBBR) with a biofilm acclimated to ph ...
DOI:
10.1016/j.procbio.2018.04.015

20. Deep domain adaptation based video smoke detection using synthetic smoke images

Author:
Zhang, Yongming,   et al.   ; Xu, Gao; Zhang, Qixing; Lin, Gaohua; Wang, Jinjun;     Show all 5 Authors
Source:
Fire safety journal 2017 v.93 pp. 53-59
ISSN:
0379-7112
Subject:
data collection; models; smoke
Abstract:
... In this paper, a deep domain adaptation based method for video smoke detection is proposed to extract a powerful feature representation of smoke. Due to the smoke image samples limited in scale and diversity for deep CNN training, we systematically produced adequate synthetic smoke images with a wide variation in the smoke shape, background and lighting conditions. Considering that the appearance ...
DOI:
10.1016/j.firesaf.2017.08.004