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Copyright of Chinese Journal of Pesticide Science / Nongyaoxue Xuebao is the property of Chinese Journal of Pesticide Science and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Fire Safety Science is the property of Fire Safety Science Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Fire Safety Science is the property of Fire Safety Science Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Inorganic Analytical Chemistry / Zhongguo Wuji Fenxi Huaxue is the property of Beijing Research Institute of Mining & Metallurgy Technology Group and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Pesticide Science / Nongyaoxue Xuebao is the property of Chinese Journal of Pesticide Science and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Pesticide Science / Nongyaoxue Xuebao is the property of Chinese Journal of Pesticide Science and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Pesticide Science / Nongyaoxue Xuebao is the property of Chinese Journal of Pesticide Science and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Pesticide Science / Nongyaoxue Xuebao is the property of Chinese Journal of Pesticide Science and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective　To establish a simultaneous detection of diclofenac sodium, fenbufen and rotundine hydrochloride illegally added in Yinhuang soft capsules by TLC-SERS. Methods　The samples to be measured were placed on the silica gel plate, and the thin layer was developed with petroleum ether-ethyl acetate (3:5). Location detection was carried out under 254 nm ultraviolet lamp. Nano-silver colloidal solution was sprayed at each spot of separation according to the optimum conditions, and then qualitative identification was done by TLC-SERS. Results　A method for simultaneous determination of diclofenac sodium, fenbufen and rotundine hydrochloride illegally added in Yinhuang soft capsule by TLC-SERS was established. And the minimum detection limits of three chemical constituents were determined. Conclusion　TLC-SERS was a rapid, accurate and sensitive method for the simultaneous and rapid detection of diclofenac sodium, fenbufen and rotundine hydrochloride illegally added into Yinhuang soft capsule. [ABSTRACT FROM AUTHOR]

Copyright of Shipin Kexue/ Food Science is the property of Food Science Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Shipin Kexue/ Food Science is the property of Food Science Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Residual concentrations of cyromazine and its degradation metabolite melamine in fruiting body and casing soil of Agaricus bisporus were monitored by ultra-performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS) and isotope-labeled internal standard method. Samples were extracted with methanol-water (4:1, V/V), purified by a strong cation exchange-solid phase column (MCX-SPE),and separated through a HILIC column. The samples were then monitored by UPLC-MS/MS using 13C-melamine as the isotopic internal standard. The results showed that the limit of detection (LOD) of cyromazine and melamine were both 0.001 mg/kg. Within spiked concentrations between 0.02-1.0 mg/kg, the recovery rates of cyromazine and melamine in both casing soil and fruiting body were 86%-102% (RSD ≤ 5.3%) and 98%-103% (RSD ≤ 2.4%), respectively. With spiked concentrations of 1, 10, 50, and 250 mg/kg, the dissipation of cyromazine in casing soil followed the first-order kinetics with an average half-life of 31.3 d. The cyromazine was degraded into melamine by the end of the second flush mushroom dspicked, with the conversion percent of 8.58%-13.87%. After the application of cyromazine with high concentrations (50 and 250 mg/kg), the residue of cyromazine and melaminein is higher in the first flush mushrooms than that in the second flush mushrooms. And the highest detected concentrations of cyromazine and melamine were 2.36 mg/kg and 1.75 mg/kg, respectively. To meet the requirement of environmental and food safety, the application amount of cyromazine was recommended to be no more than 50 mg/kg. [ABSTRACT FROM AUTHOR]

Copyright of Acta Edulis Fungi is the property of Acta Edulis Fungi and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Edulis Fungi is the property of Acta Edulis Fungi and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Pesticide Science / Nongyaoxue Xuebao is the property of Chinese Journal of Pesticide Science and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Pesticide Science / Nongyaoxue Xuebao is the property of Chinese Journal of Pesticide Science and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Under scenario of sports events and other kinds of massive gathering, a large amount of people would travel along road networks, thus forming crowded pedestrians. The high density situation might induce in mass panic and stampede, causing serious injuries and casualties. Therefore, it is necessary to firstly understand pedestrian flow features on the corresponding network and then apply proper control method to organize and manage pedestrian flow. Firstly, considering general characteristics of travelers' route choice behavior, all these pedestrians are dynamically assigned onto the road network via a traffic assignment model. Secondly, a nonlinear pedestrian road impedance function is introduced to address the congestion effects of massive crowds, and the pedestrian travel time changing rate is calculated for each link under various traffic volumes. It is proposed to sort the networks links according to the travel time changing rate. The rank is thus defined as a measurement of the structural importance of each link. Further, the structural importance is used to determine link robustness under different pedestrian traffic demand. Combing the result of structural importance and link robustness, bottleneck of the crowd circulating network can be identified. Finally, the Love Parade 2010 in Duisburg (an electronic music festival) is adopted as a case to illustrate the applicability of the proposed network bottleneck identification method. The threshold of pedestrian volume on the network and the effect of road control strategy are further investigated, the obtained basic data and theoretical results can benefit scientific planning and management of massive crowd road traffic. [ABSTRACT FROM AUTHOR]