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    题名 作者 年代 出处 被引量
1Mercury in alpine fish from four rivers in the Tibetan Plateau显示文摘As a global pollutant, high levels of mercury(Hg) have been found in remote ecosystem due to the long range atmospheric transport. In this study, a total of 60 fish samples were collected from four rivers across the Tibetan Plateau to study the accumulation of Hg in remote and high-altitude aquatic environment. The total Hg(THg) and methylmercury(MeHg) in fish muscles ranged from 11 to 2097 ng/g dry weight(dw)(average: 819 ng/g dw)and from 14 to 1960 ng/g dw(average: 756 ng/g dw), respectively. Significantly positive linear relationships were observed between the THg(r = 0.591, p < 0.01, n = 36) and MeHg concentrations(r = 0.473, p < 0.01, n = 36) with the trophic level of fish from Lhasa River,suggesting trophic transfer and biomagnification of Hg in this aquatic ecosystem. Moreover,the THg levels in fish had significantly positive correlations with the length(r = 0.316,p < 0.05, n = 60) and weight(r = 0.271, p < 0.05, n = 60) of fish. The high levels of Hg were attributed to the slow growth and long lifespan of the fish under this sterile and cold environment. Risk assessment revealed that the consumption of Oxygymnocypris stewartii,Schizothorax macropogon, Schizothorax waltoni, Schizopygopsis younghusbandi and Schizothorax o'connori would lead to a high exposure to Me Hg.Junjuan Shao Jianbo Shi Bu Duo Chengbin Liu Yan Gao Jianjie Fu Ruiqiang Yang Guibin Jiang 2016Journal of Environmental Sciences2016,28,1:1
2Study on Flow and Heat Transfer Characteristics of Heat Pipewith Axial'Ω”Shaped Microgrooves显示文摘CHEN Yongping ZHANG Chengbin SHI Mingheng 0,,:1
3A strategy to enhance the insecticidal potency of Vip3Aa by introducing additional cleavage sites to increase its proteolytic activation efficiency显示文摘Microbially derived,protein-based biopesticides have become a vital element in pest management strategies.Vip3 family proteins from Bacillus thuringiensis have distinct characteristics from known insecticidal Cry toxins and show efficient insecticidal activity against several detrimental lepidopteran pests.They are considered to be a promising toxic candidate for the management of various detrimental pests.In this study,we found that in addition to the preliminary digestion sites lysine,there are multiple cleavage activation sites in the linker region between domain I(DI)and DII of Vip3Aa.We further demonstrated that by adding more cleavage sites between DI and DII of Vip3Aa,its proteolysis efficiency by midgut proteases can be significantly increased,and correspondingly enhance its insecticidal activity against Spodoptera frugiperda and Helicoverpa armigera larvae.Our study promotes the understanding of the insecticidal mechanism of Vip3 proteins and illustrates an eas-ily implementable strategy to increase the insecticidal potency of Vip3Aa.This facilitates their potential future development and efficient application for sustainable agriculture.Kun Jiang Zhe Chen Yiting Shi Yuanrong Zang Chengbin Shang Xi Huang Jiahe Zang Zhudong Bai Xuyao Jiao Jun Cai Xiang Gao 2023Engineering Microbiology2023,3,4:1
4A thermodynamic model of sulfur distribution ratio between CaO-SiO2-MgO-FeO-MnO-Al2 O3 slags and molten steel during LF refining process based on the ion and molecule coexistence theory显示文摘YANG Xuemin SHI Chengbin ZHANG Meng 2011Metallurgical and materials transactions B2011,42,6:1
5Epidemic Thresh- old and Immunization on Generalimd Networks显示文摘PENG Chengbin JIN Xiaogang SHI Meixia 2010Physica A: Statistical Mechanics and its Applications2010,389,3:1
6Remote Terminal Unit Based on Control Area Network显示文摘This paper describes a kind of Remote Terminal Unit(RTU) DR-2000 based on distributed design with Control Area Network(CAN). It also discusses how to select field-bus and how to use field-bus technology in traditional data terminal equipment and the development trend of RTU.Tao Xiaonong Xu Shiming Shi Yuxiang Liu Chengbin Jiang Yueping (Naming Automation Research Institute) 1999Electricity1999,,2:0
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