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| 1 | New Trends in Internal Migration in China: Profiles of the New-generation Migrants显示文摘 | Liqiu Zhao Shouying Liu Wei Zhang | 2018 | China & World Economy2018，26，1： | 19 |
| 2 | The role of β18-β19 loop structure in insecticidal activity of Cry1Ac toxin from Bacillus thuringiensis显示文摘The β18-β19 loop in domain III of Cry1Ac toxin is unique among Bacillus thuringiensis Cry proteins. In this study, the role of the loop structure in insecticidal activity of Cry1Ac toxin was investigated. Alanine scanning mutations within the loop were initially generated and most mutants were over-expressed and reduced toxicity at different degrees, except mutant N546A that showed almost 2 times enhanced toxicity against Helicoverpa armigera larvae. Further mutagenic analysis of N546 revealed that a charged amino acid in this position would cause very unfavorable influence on insecticidal activity. In addition, the deletion of N546 led to protein instability because of destruction of the loop integrity. Besides, mutant W544F was much more toxic than W544Y, indicating that hydrophobic nature of the position was important for maintaining the stability and activity of Cry1Ac protein. These findings are the first biological evidence for a structural function of β18-β19 loop in insecticidal activity of the Cry1Ac toxin. | XIA LiQiu WANG FaXiang DING XueZhi ZHAO XinMin FU ZuJiao QUAN MeiFang YU ZiNiu | 2008 | Chinese Science Bulletin2008，53，20： | 4 |
| 3 | Metagenome analysis reveals potential microbial functions in topsoil of wheat-maize rotation system with five-year application of fertilizers显示文摘Fertilization mode affects soil quality and ecological health.The effects of four fertilization regimens on lignocellulose content,readily degradable carbohydrate decomposition,and potential microbial functions in the topsoil of a wheat-maize rotation system between 2012 and 2017 were investigated.The fertilization regimens of control(control NFNB),high chemical fertilizer(HCF),high biochar plus low chemical fertilizer(HBLCF),and biochar-based fertilizer(BBF)were compared on soil fundamental properties,microbial structure,and potential function in soil carbohydrate degradation based on metagenome analysis.The diversity of carbohydrate-active enzyme genes in the topsoil microbial consortia in the four trials was primarily distributed within the ten ecologically most dominant phyla.Application of BBF was associated with the lowest decline in total nitrogen and P2O5(2012-2017:6.5%and 28.1%,respectively)and the most effective carbohydrate decomposition(2015-2017:67.0%for cellulose and 59.9%for readily degradable carbohydrate).Carbohydrate transport and metabolism accounted for 6.0%of reads assigned functional classification under the BBF regimen.These findings reveal the ecologically functional diversity of topsoil microorganisms and suggest BBF application as a promising strategy for sustainable agriculture and beneficial to soil health. | Yujun Shen Lixin Zhao Haibo Meng Hongsheng Cheng Jingtao Ding Jiarui Wang Shanshan Dong Xi Zhang Liqiu Song Shengwei Zheng | 2019 | International Journal of Agricultural and Biological Engineering2019，12，6： | 3 |
| 4 | Investigation and analysis of the linkage mechanism and whole process cost of livestock manure organic fertilizer显示文摘In recent years,the utilization of manure resources for livestock and poultry farming has attracted a widespread attention,and manure resources utilization models suitable for different regional characteristics have formed gradually.Among them,the production of organic fertilizer from animal manure is a vital utilization method.However,there are still some problems such as high production costs,difficult sales,and the unwillingness of farmers to use organic fertilizers which have affected the breeding cycle and the sustainability of manure treatment in livestock and poultry breeding.This article selected 371 organic fertilizer plants,related farms and farmers in China,focusing on the main links of the entire process of livestock manure-organic fertilizer-farm application,and studied the mode of animal manure collection by organic fertilizer plants.The costs of organic fertilizer production and farmland application were discussed.Moreover,suggestions were made for the promotion and implementation of large-scale organic fertilizers to make good utilization of manure resources in livestock and poultry farming. | Shanshan Dong Bin Sui Yujun Shen Haibo Meng Lixin Zhao Jingtao Ding Haibin Zhou Xi Zhang Hongsheng Cheng Jian Wang Ran Li Liqiu Song Pengxiang Xu Ji Li | 2020 | International Journal of Agricultural and Biological Engineering2020，13，2： | 2 |
| 5 | IMPROVED FABRICATION METHOD FOR CARBON NANOTUBE PROBE OF ATOMIC FORCE MICROSCOPY(AFM)显示文摘一个改进的弧分泌物方法被开发这里制作原子力量显微镜学(AFM ) 的碳 nanotubeprobe。首先,硅探查和碳 nanotube 被二高精确在一台光显微镜下面操作微翻译者。当硅探查和碳 nanotube 是很靠近的时,几十电压在他们之间被使用。并且 carbonnanotube 被划分并且属于硅探查的目的,它主要由于弧焊功能。以前与弧分泌物方法作比较,这里的新方法不预先与金属电影需要上衣硅探查,它能极大地减少制造“ s 困难。Thefabricated 碳 nanotube 探查更精确地显示出更高的方面比率和罐头的好性质比硅探查反映硅栅栏的真地形学。在一样的图象开车力量下面,碳 nanotube 探查比硅探查在软 triblock 共聚物样品上有更少的缩进深度。这证明碳 nanotube 探查比硅探查有经常的更低的春天和扫描样品的更少的损坏。 | XU Zongwei DONG Shen GUO Liqiu ZHAO Qingliang | 2006 | Chinese Journal of Mechanical Engineering2006，19，3： | 1 |
| 6 | Comparison of the efficiency and mechanism of catalytic ozonation of 2,4,6-trichloroanisole by iron and manganese modified bauxite显示文摘 | Fei Qi Bingbing Xu Lun Zhao Zhonglin Chen Liqiu Zhang Dezhi Sun Jun Ma | 2012 | Applied Catalysis B Environmental2012，，： | 1 |
| 7 | Apoptin selectively induces the apoptosis of tumor cells by suppressing the transcription of HSP70显示文摘 | Lijie Yuan Liqiu Zhang Xingli Dong Hengyu Zhao Shuyan Li Dong Han Xinghan Liu | 2013 | Tumor Biology2013，，1： | 1 |
| 8 | Selective omission of road features based on mesh density for automatic map generalization显示文摘 | Jun Chen Yungang Hu Zhilin Li Renliang Zhao Liqiu Meng | 2009 | International Journal of Geographical Information Science2009，，8： | 1 |
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