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| 1 | Mercury isotope variations in surface soils in different contaminated areas in Guizhou Province,China显示文摘Guizhou Province is known as a heavily Hg-polluted area in China due to its special geochemical background and complicated Hg emission sources.In this study,we investigated the Hg isotope compositions of surface soil samples in the Hg mining area,zinc smelting area,coal combustion area,which are known to be the typical pollution regions of Hg in this province.We also compared the Hg isotopic fingerprints of primary Hg sources,such as hydrothermal Hg-bearing ores,coals and atmospheric Hg samples.According to our study,Hg stored in surface soils in different pollution regions in Guizhou Province displays a wide range of both mass dependent fractionation(MDF,δ202Hg) and mass independent fractionation(MIF,△199Hg).δ 202 Hg varies by 2.0‰ and △199Hg varies by 0.25‰ in the investigated surface soils.This study demonstrated that using a 'MDF-MIF' two dimensional Hg isotope system could be particularly useful in discriminating Hg sources in soils. | FENG XinBin YIN RunSheng YU Ben DU BuYun | 2013 | Chinese Science Bulletin2013,58,2: | 13 |
| 2 | DISTRIBUTED MONITORING SYSTEM RELIABILITY ESTIMATION WITH CONSIDERATION OF STATISTICAL UNCERTAINTY显示文摘Taking into account the whole system structure and the component reliability estimation uncertainty, a system reliability estimation method based on probability and statistical theory for distributed monitoring systems is presented. The variance and confidence intervals of the system reliability estimation are obtained by expressing system reliability as a linear sum of products of higher order moments of component reliability estimates when the number of component or system survivals obeys binomial distribution. The eigenfunction of binomial distribution is used to determine the moments of component reliability estimates, and a symbolic matrix which can facilitate the search of explicit system reliability estimates is proposed. Furthermore, a case of application is used to illustrate the procedure, and with the help of this example, various issues such as the applicability of this estimation model, and measures to improve system reliability of monitoring systems are discussed. | Yi Pengxing Yang Shuzi Du Runsheng Wu Bo Liu Shiyuan | 2005 | Chinese Journal of Mechanical Engineering2005,18,4: | 2 |
| 3 | 'The Situation in the Rural Areas and the Issue of Circulation'显示文摘 | Du Runsheng | 1986 | 商业经济研究1986,8,: | 1 |
| 4 | Integrated Prevention and Control Technology of Major Diseases and Insect Pests of Strawberry显示文摘In order to effectively deal with the problems of diseases and insect pests in the growth process of strawberry and to improve the quality and yield of strawberry,the main diseases and insect pests in strawberry cultivation such as powdery mildew,gray mold,anthracnose,red stele root rot,calcium deficiency,salt or fertilizer damage,aphids,red spiders,thrips,grubs,etc.and their identification methods were analyzed.The comprehensive pollution-free prevention and control techniques of these pests and diseases were explored,in order to provide technical guidance for high quality,efficient and harmless production of strawberry. | Yang Lei Yang Li Li Li Du Runsheng Dong Hui | 2020 | Plant Diseases and Pests2020,11,2: | 0 |
| 5 | Progress of IBMS Experiment at HIRFL显示文摘Progress of IBMS Experiment at HIRFL¥ChenXiaoxi;ZhangHongbing;HuangRunsheng;NiuMulin;MengQinghua;DuYifeiandXiaYuanfu(Supporte... | Chen Xiaoxi Zhang Hongbing Huang Runsheng Niu Mulin Meng Qinghua Du Yifei and Xia Yuanfu | 1994 | IMP & HIRFL Annual Report1994,,0: | 0 |
| 6 | Ablation of Zfhx4 results in early postnatal lethality by disrupting the respiratory center in mice显示文摘Breathing is an integrated motor behavior that is driven and controlled by a network of brainstem neurons.Zfhx4 is a zinc finger transcription factor and our results showed that it was specifically expressed in several regions of the mouse brainstem.Mice lacking Zfhx4 died shortly after birth from an apparent inability to initiate respiration.We also found that the electrical rhythm of brainstem‒spinal cord preparations was significantly depressed in Zfhx4-null mice compared to wild-type mice.Immunofluorescence staining revealed that Zfhx4 was coexpressed with Phox2b and Math1 in the brainstem and that Zfhx4 ablation greatly decreased the expression of these proteins,especially in the retrotrapezoid nucleus.Combined ChIP‒seq and mRNA expression microarray analysis identified Phox2b as the direct downstream target gene of Zfhx4,and this finding was validated by ChIP‒qPCR.Previous studies have reported that both Phox2b and Math1 play key roles in the development of the respiratory center,and Phox2b and Math1 knockout mice are neonatal lethal due to severe central apnea.On top of this,our study revealed that Zfhx4 is a critical regulator of Phox2b expression and essential for perinatal breathing. | Meiqin Zhang Sichen Du Huayuan Ou Renjie Cui Nan Jiang Yifeng Lin Runsheng Ge Duan Ma Jin Zhang | 2021 | Journal of Molecular Cell Biology2021,13,3: | 0 |