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Article ; Online: Investigation on a mobile fire extinguishing approach using liquid carbon dioxide as inert medium for underground mine.

Ge, Liang / Zhang, Zujing / Wang, Yinjun / Zhang, Shitao / Chen, Yujin

2024 Volume 19, Issue 4, Page(s) e0299940

Abstract: Injecting carbon dioxide is the most effective means of preventing and extinguishing fires in sealing hazardous areas, but the traditional method slowly and remotely injects carbon dioxide gas into the well after gasification on the ground, which is ... ...

Abstract	Injecting carbon dioxide is the most effective means of preventing and extinguishing fires in sealing hazardous areas, but the traditional method slowly and remotely injects carbon dioxide gas into the well after gasification on the ground, which is dependent on the complete mine pipe network without cooling effect. To inject liquid directly from the tank with vacuum interlayer and heat insulating powder for rapid inerting and cooling, a new approach using track mobile platform to go deep into the underground mine disaster area is proposed, so the liquid can be delivered to the nozzle at the end of DN40 large diameter pipe, and the continuous gasification jet can be realized. The experimental results show that: (1) The liquid volume in a tank of vacuum degree within 2.0 Pa and 200 mm interlayer reduced no more than 15.5% after 48 days; (2) Taking the pressure in the tank as the power source, because of environmental differences inside and outside the pipe after 100 m pressure holding delivery, the physical form of liquid and gas could be converted instantly; (3) The continuous discharge time without ice blocking for a tank full of 2 m3 liquid was about 10.5 min under 25 L dual mode nitrogen pressurization, which is 1/12 of injection time after ground gasification; (4) Based on the temperature decrease trend measured at different positions, the cooling characteristics on liquid gasification jet path are quantified, and the calculation formula of temperature changing with time on the center line of liquid gasification jet is obtained. Through this new approach, the integration of vacuum insulated storage, safe mobile transportation, and continuous and rapid release with large flow can be achieved for the liquid carbon dioxide.
MeSH term(s)	Carbon Dioxide ; Fires/prevention & control ; Nitrogen ; Hot Temperature ; Cold Temperature
Chemical Substances	Carbon Dioxide (142M471B3J) ; Nitrogen (N762921K75)
Language	English
Publishing date	2024-04-15
Publishing country	United States
Document type	Journal Article
ZDB-ID	2267670-3
ISSN	1932-6203 ; 1932-6203
ISSN (online)	1932-6203
ISSN	1932-6203
DOI	10.1371/journal.pone.0299940
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: The σ+π dual aromaticity of typical bi-tetrazole ring molecule TKX-50.

Yang, Chunhai / Dong, Huilong / Li, Xue / Zhou, Ning / Liu, Yi / Jin, Junxun / Wang, Yinjun

Chemphyschem : a European journal of chemical physics and physical chemistry

2024 Volume 25, Issue 7, Page(s) e202400005

Abstract: Two complexes of dihydroxylammonium 5,5'-bistetrazole-1,1'-diolate (TKX-50) were employed to evaluate the aromaticity of their tetrazole rings via deep analysis such as the electronic structure, the ZZ component of the natural chemical shielding tensor ( ... ...

Abstract	Two complexes of dihydroxylammonium 5,5'-bistetrazole-1,1'-diolate (TKX-50) were employed to evaluate the aromaticity of their tetrazole rings via deep analysis such as the electronic structure, the ZZ component of the natural chemical shielding tensor (NICS
Language	English
Publishing date	2024-02-08
Publishing country	Germany
Document type	Journal Article
ZDB-ID	2025223-7
ISSN	1439-7641 ; 1439-4235
ISSN (online)	1439-7641
ISSN	1439-4235
DOI	10.1002/cphc.202400005
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: The national, regional, and global impact of glaucoma as reported in the 2019 Global Burden of Disease Study.

Wu, Huifeng / Wang, Yinjun / Li, Feidi / Liu, Zelong / Shi, Feifei

Archives of medical science : AMS

2023 Volume 19, Issue 6, Page(s) 1913–1919

Abstract: Introduction: We investigated the disability-adjusted life years (DALYs) of glaucoma.: Methods: The estimated annual percentage change (EAPC) was measured to assess trends in the age-standardized DALY rate from 1990 to 2019.: Results: The global ... ...

Abstract	Introduction: We investigated the disability-adjusted life years (DALYs) of glaucoma. Methods: The estimated annual percentage change (EAPC) was measured to assess trends in the age-standardized DALY rate from 1990 to 2019. Results: The global age-standardized DALY rate of glaucoma decreased with an EAPC of -1.00. The age-standardized DALY rate decreased least in high-SDI regions. Eastern sub-Saharan Africa had highest age-standardized DALY rate in 2019. At the national level, Mali had the highest age-standardized DALY rate in 2019. Conclusions: Although the global burden of glaucoma has decreased, the burden remain high in regions with low SDI values and in sub-Saharan Africa.
Language	English
Publishing date	2023-10-20
Publishing country	Poland
Document type	Journal Article
ZDB-ID	2203781-0
ISSN	1734-1922
ISSN	1734-1922
DOI	10.5114/aoms/172929
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Article: Effects of soil moisture, net radiation, and atmospheric vapor pressure deficit on surface evaporation fraction at a semi-arid grass site

Tong, Bing / Guo, Jianping / Xu, Hui / Wang, Yinjun / Li, Huirong / Bian, Lingen / Zhang, Jian / Zhou, Shenghui

Science of the total environment. 2022 Nov. 25, v. 849

2022

Abstract: Surface energy partitioning is one of the most important aspects of the land-atmosphere coupling. The objective of this study is to examine how soil moisture (SM) and atmospheric conditions (net radiation, Rn and vapor pressure deficit, VPD) affect ... ...

Abstract	Surface energy partitioning is one of the most important aspects of the land-atmosphere coupling. The objective of this study is to examine how soil moisture (SM) and atmospheric conditions (net radiation, Rn and vapor pressure deficit, VPD) affect surface evaporation fraction (EF, determined by LE/(LE + H), where LE and H are latent and sensible heat flux, respectively) with measurements at a semi-arid grass site in China during the mid-growing season, 2020. The three factors (SM, Rn, and VPD) were divided into different levels, and then their effects on EF were investigated qualitatively using a combinatorial stratification method and quantificationally using a path analysis. Generally, the results indicated that the effect of one factor of SM, Rn and VPD on EF was influenced by the other two factors. EF tended to increase with increasing SM. Increased VPD (Rn) enhanced (weakened) the SM-EF relationship. When soil was dry, EF tended to decrease with increasing VPD; when soil was wet, EF initially levelled off and then decreased with increasing VPD. Increased Rn enhanced (weakened) the positive (negative) effect of VPD on EF when soil was wet (dry). In terms of Rn effect, EF tended to decrease as Rn increases. Further, path analysis suggested that SM, Rn, and VPD not only directly affected EF, but also indirectly affected EF, mainly through canopy conductance (Gs) and temperature difference between land surface and air (∆T). The direct effect of SM accounted for >50 % of its total effect on EF, while the total effects of Rn and VPD on EF were dominated by their indirect effects. These observational evidences may have implications for improving representation of land-atmosphere coupling in atmospheric general circulation models over the semi-arid regions covered by grass.
Keywords	air ; canopy ; energy ; environment ; evaporation ; grasses ; net radiation ; path analysis ; sensible heat flux ; soil water ; temperature ; vapor pressure deficit ; China
Language	English
Dates of publication	2022-1125
Publishing place	Elsevier B.V.
Document type	Article
ZDB-ID	121506-1
ISSN	1879-1026 ; 0048-9697
ISSN (online)	1879-1026
ISSN	0048-9697
DOI	10.1016/j.scitotenv.2022.157890
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Effects of soil moisture, net radiation, and atmospheric vapor pressure deficit on surface evaporation fraction at a semi-arid grass site.

Tong, Bing / Guo, Jianping / Xu, Hui / Wang, Yinjun / Li, Huirong / Bian, Lingen / Zhang, Jian / Zhou, Shenghui

The Science of the total environment

2022 Volume 849, Page(s) 157890

Abstract	Surface energy partitioning is one of the most important aspects of the land-atmosphere coupling. The objective of this study is to examine how soil moisture (SM) and atmospheric conditions (net radiation, Rn and vapor pressure deficit, VPD) affect surface evaporation fraction (EF, determined by LE/(LE + H), where LE and H are latent and sensible heat flux, respectively) with measurements at a semi-arid grass site in China during the mid-growing season, 2020. The three factors (SM, Rn, and VPD) were divided into different levels, and then their effects on EF were investigated qualitatively using a combinatorial stratification method and quantificationally using a path analysis. Generally, the results indicated that the effect of one factor of SM, Rn and VPD on EF was influenced by the other two factors. EF tended to increase with increasing SM. Increased VPD (Rn) enhanced (weakened) the SM-EF relationship. When soil was dry, EF tended to decrease with increasing VPD; when soil was wet, EF initially levelled off and then decreased with increasing VPD. Increased Rn enhanced (weakened) the positive (negative) effect of VPD on EF when soil was wet (dry). In terms of Rn effect, EF tended to decrease as Rn increases. Further, path analysis suggested that SM, Rn, and VPD not only directly affected EF, but also indirectly affected EF, mainly through canopy conductance (Gs) and temperature difference between land surface and air (∆T). The direct effect of SM accounted for >50 % of its total effect on EF, while the total effects of Rn and VPD on EF were dominated by their indirect effects. These observational evidences may have implications for improving representation of land-atmosphere coupling in atmospheric general circulation models over the semi-arid regions covered by grass.
MeSH term(s)	Desert Climate ; Ecosystem ; Poaceae ; Soil ; Vapor Pressure ; Water
Chemical Substances	Soil ; Water (059QF0KO0R)
Language	English
Publishing date	2022-08-06
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	121506-1
ISSN	1879-1026 ; 0048-9697
ISSN (online)	1879-1026
ISSN	0048-9697
DOI	10.1016/j.scitotenv.2022.157890
Database	MEDical Literature Analysis and Retrieval System OnLINE

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bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
Jg. 1995 - 2021: Lesesall (1.OG)
ab Jg. 2022: Lesesaal (EG)

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Article: The near-surface turbulent kinetic energy characteristics under the different convection regimes at four towers with contrasting underlying surfaces

Tong, Bing / Guo, Jianping / Wang, Yinjun / Li, Jian / Yun, Yuxing / Solanki, Raman / Hu, Ning / Yang, Honglong / Li, Huirong / Su, Jianghua / He, Qianshan / Zhou, Yue / Zhang, Kui / Zhang, Yong

Atmospheric research. 2022 June 01, v. 270

2022

Abstract: Turbulence kinetic energy (TKE) is widely used to characterize the spatio-temporal changes of atmospheric turbulence. The objective of this study is to investigate the near-surface TKE characteristics under the different convection regimes classified by ... ...

Abstract	Turbulence kinetic energy (TKE) is widely used to characterize the spatio-temporal changes of atmospheric turbulence. The objective of this study is to investigate the near-surface TKE characteristics under the different convection regimes classified by the ratio of the buoyancy term (BP) to the shear term (SP) based on the sonic anemometer data measured at four boundary layer towers in China with contrasting underlying surfaces. The annual average diurnal variations of TKE and the related variables (BP, SP, friction velocity u∗, and wind speed u¯) at the four towers are analyzed. Large differences exist in each variable between sites, leading to convection regimes differing by site. TKE varies significantly (up to 243%) with the convection regimes. Although the percentage of given convection regime varies greatly between sites, the results from the four towers show that TKE initially increases from the unstable to neutral atmospheric stratification conditions, and decreases from the neutral to stable conditions. Note that the ratio between BP and SP (BP/SP) is closely related to near-surface atmospheric stability. Except for BP, the other three variables (SP, u∗, and u¯) have similar trends with TKE. The buoyancy term tends to decrease as BP/SP decreases. The correlation coefficients (R) between TKE and the related variables vary up to 0.33 (67%) with different convective regimes, whereas the variation trends of R between TKE and a given variable (BP and SP) are broadly similar at the four towers. This study indicates that the variation trend of TKE and its associations with BP and SP seem reliable under the different convection regimes. Our findings advance the understanding of near-surface turbulence and demonstrate that the different convection regimes should be considered when investigating TKE characteristics.
Keywords	convection ; friction velocity ; kinetic energy ; research ; turbulent flow ; wind speed
Language	English
Dates of publication	2022-0601
Publishing place	Elsevier B.V.
Document type	Article
ISSN	0169-8095
DOI	10.1016/j.atmosres.2022.106073
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: The characteristics of abnormal wintertime pollution events in the Jing-Jin-Ji region and its relationships with meteorological factors.

Zhu, Wenhui / Xu, Xiangde / Zheng, Jun / Yan, Peng / Wang, Yinjun / Cai, Wenyue

The Science of the total environment

2018 Volume 626, Page(s) 887–898

Abstract: Despite the implementation of strict air pollution control measures in recent years, severe haze events were still encountered in the Beijing-Tianjin-Hebei (Jing-Jin-Ji) region during the winter 2016. In this work, seasonal differences in correlations ... ...

Abstract	Despite the implementation of strict air pollution control measures in recent years, severe haze events were still encountered in the Beijing-Tianjin-Hebei (Jing-Jin-Ji) region during the winter 2016. In this work, seasonal differences in correlations between air pollution and geographic terrain, atmospheric dynamical and thermal structures, and PBL height over the Jing-Jin-Ji region in history and recent years were investigated and a comprehensive model of atmospheric factors affecting winter air pollution formation was proposed. We found that the distribution of PM
MeSH term(s)	Air Pollutants/analysis ; Air Pollution/statistics & numerical data ; Beijing ; Environmental Monitoring ; Meteorological Concepts ; Particulate Matter/analysis ; Seasons
Chemical Substances	Air Pollutants ; Particulate Matter
Language	English
Publishing date	2018-02-19
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	121506-1
ISSN	1879-1026 ; 0048-9697
ISSN (online)	1879-1026
ISSN	0048-9697
DOI	10.1016/j.scitotenv.2018.01.083
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Zs.A 949: Show issues

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Je nach Verfügbarkeit (siehe Angabe bei Bestand)
bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
Jg. 1995 - 2021: Lesesall (1.OG)
ab Jg. 2022: Lesesaal (EG)

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Article: Bioactive and Physicochemical Characteristics of Natural Food: Palmyra Palm (

Thi Le, Dung Huynh / Chiu, Chien-Shan / Chan, Yung-Jia / Wang, Chiun-Chuan R / Liang, Zeng-Chin / Hsieh, Chang-Wei / Lu, Wen-Chien / Mulio, Amanda Tresiliana / Wang, Yin-Jun / Li, Po-Hsien

Biology

2021 Volume 10, Issue 10

Abstract: Palmyra palm syrup, produced ... ...

Abstract	Palmyra palm syrup, produced from
Language	English
Publishing date	2021-10-11
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2661517-4
ISSN	2079-7737
ISSN	2079-7737
DOI	10.3390/biology10101028
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Bioactive and Physicochemical Characteristics of Natural Food: Palmyra Palm (Borassus flabellifer Linn.) Syrup

Thi Le, Dung Huynh / Chiu, Chien-Shan / Chan, Yung-Jia / Wang, Chiun-Chuan R. / Liang, Zeng-Chin / Hsieh, Chang-Wei / Lu, Wen-Chien / Mulio, Amanda Tresiliana / Wang, Yin-Jun / Li, Po-Hsien

Biology. 2021 Oct. 11, v. 10, no. 10

2021

Abstract: Palmyra palm syrup, produced from Borassus flabellifer flowers’ sap, is rich in nutrients and minerals and has unique flavors. This study evaluated the in vitro antioxidant activity, physicochemical characteristics, and Maillard reaction products of ... ...

Abstract	Palmyra palm syrup, produced from Borassus flabellifer flowers’ sap, is rich in nutrients and minerals and has unique flavors. This study evaluated the in vitro antioxidant activity, physicochemical characteristics, and Maillard reaction products of palmyra palm syrup prepared by thermal and ultrafiltration processes. Palmyra palm syrup prepared by a thermal process had smaller L, b values, and larger a* values than that prepared by an ultrafiltration process. Palmyra palm syrup contained 10 vitamins, the most abundant being vitamin E. Overall, 38 volatile compounds were found and classified into six groups in the order of alcohols > acids > ketones > sulfurs > pyrazines > phenols and aldehyde. Volatile compounds depended on concentration, temperature, and ultrafiltration process. Protein content decreased because of participation in the Maillard reaction and increased 5-hydroxymethylfurfural (HMF) and total phenolic content. The HMF content was very low (0.02–14.95 mg/100 g). The radical scavenging activity of 2,2-diphenyl-1-1 picrylhydrazyl and 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid) in palmyra palm syrup with thermal process was higher than with ultrafiltration. This study established that ultrafiltration pretreatment of palmyra palm syrup generated a good appearance and reduced the HMF content, however, it negatively affected the volatile compounds and physicochemical characteristics.
Keywords	Borassus flabellifer ; antioxidant activity ; hydroxymethylfurfural ; protein content ; pyrazines ; sap ; syrups ; temperature ; ultrafiltration ; vitamin E
Language	English
Dates of publication	2021-1011
Publishing place	Multidisciplinary Digital Publishing Institute
Document type	Article
ZDB-ID	2661517-4
ISSN	2079-7737
ISSN	2079-7737
DOI	10.3390/biology10101028
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Numerical simulations of the effects of regional topography on haze pollution in Beijing.

Zhang, Ziyin / Xu, Xiangde / Qiao, Lin / Gong, Daoyi / Kim, Seong-Joong / Wang, Yinjun / Mao, Rui

Scientific reports

2018 Volume 8, Issue 1, Page(s) 5504

Abstract: In addition to weather conditions and pollutant emissions, the degree to which topography influences the occurrence and development of haze pollution in downtown Beijing and the mechanisms that may be involved remain open questions. A series of ... ...

Abstract	In addition to weather conditions and pollutant emissions, the degree to which topography influences the occurrence and development of haze pollution in downtown Beijing and the mechanisms that may be involved remain open questions. A series of atmospheric chemistry simulations are executed by using the online-coupled Weather Research and Forecasting with Chemistry (WRF-Chem) model for November-December 2015 with different hypothetical topographic height scenarios. The simulation results show that topography exerts an important influence on haze pollution in downtown Beijing, particularly the typical development of haze pollution. A possible mechanism that underlies the response of haze pollution to topography is that the mountains that surround Beijing tend to produce anomalous southerly winds, high relative humidity, low boundary layer heights, and sinking motion over most of Beijing. These conditions favor the formation and development of haze pollution in downtown Beijing. Furthermore, the reduction percentage in PM
Language	English
Publishing date	2018-04-03
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2615211-3
ISSN	2045-2322 ; 2045-2322
ISSN (online)	2045-2322
ISSN	2045-2322
DOI	10.1038/s41598-018-23880-8
Database	MEDical Literature Analysis and Retrieval System OnLINE

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