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Pollution assessment of heavy metals along the Mekong River and dam effects

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Journal of Geographical Sciences 2012年第5期22卷 874-884页

作者： FU Kaidao SU Bin HE Daming LU Xixi song jingyi HUANG Jiangcheng Asian International Rivers Center Yunnan University Kunming 650091 China Yunnan Key Laboratory for International Rivers and Transboundary Ecology Security Kunming 650091 China Department of Geography National University of Singapore 119260 Singapore

The resource development and changes of hydrological regime, sediment and water quality in the Mekong River basin have attracted great attentions. This research aimed to enhance the study on transboundary pollution of heavy metals in this international river. In this study, eight sampling sites were selected to collect the bed sand samples along the mainstream of the Mekong River. In addition, the contents of 5 heavy metal elements and their spatial variability along the mainstream of the river were analyzed. The geoaccumulation index （l^eo） and potential ecological risk analysis were employed to assess heavy metal pol- lution status in the mainstream of the Mekong River. The results show that the average con- tent of the heavy metal elements Zn is 91.43 mg/kg, Pb is 41.85 mg/kg, and As is 21.84 mg/kg in the bed sands of the Upper Mekong River, which are higher than those （Zn 68.17 mg/kg, Pb 28.22 mg/kg, As 14.97 mg/kg） in the Lower Mekong. The average content of Cr in the Lower Mekong is 418.86 mg/kg, higher than that in the Upper Mekong （42.19 mg/kg）. Luang Prabang has a very high Cr concentration with 762.93 mg/kg and Pakse with 422.90 mg/kg. The concentration of Cu in all of the 8 sampling sites is similar, except for in Jiajiu with 11.70 mg/kg and Jiebei with 7.00 mg/kg. The results of the geoaccumulation index reveal that contaminations caused by Zn and Pb while Pb and As are more than those by Zn in Upper Mekong. Cr is the primary pollutant in the Lower Mekong, especially at Luang Prabang and Pakse. Slight pollution with As also occurs in Pakse. The potential ecological risk index indi- cates that the potential ecological risk of heavy metals in the mainstream of the Mekong River is low. We argue that the pollution of water quality and contamination of heavy metals in bed sediment caused by mining of mineral resources or geochemical background values in the Mekong is not transmitted from the Upper to the Lower Mekong because of the reservoir sedimentation and

关键词： Mekong River basin heavy metal pollution geoaccumulation index potential ecological risk index

大埋深建筑物底板抗剪能力在抗浮桩设计中的应用

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铁道建筑 2007年第2期47卷 73-74页

作者：宋璟毅中铁建设集团有限公司北京100040

建筑物基础埋深逐渐增大,导致建筑物抗浮问题越来越突出,现有规范对抗浮桩设计没有统一规定。文章从挖掘大埋深建筑物底板的抗剪承载能力出发,通过力学分析试图尽量减少抗浮桩造价。

关键词：抗浮桩设计底板抗剪能力

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拟除虫菊酯类杀虫剂与女性生殖健康研究进展

环境科学与技术 2020年第9期43卷 102-110页

作者：宋静苡刘璟浙江大学环境与资源学院污染环境修复与生态健康教育部重点实验室浙江杭州310058 浙江大学环境与资源学院环境健康研究所浙江杭州310058

拟除虫菊酯类杀虫剂广泛应用于农业园林和家庭室内的防虫除虫,在环境广泛残留,可通过多种暴露途径进入生物体,对人类健康产生潜在危害。已有研究表明,拟除虫菊酯类杀虫剂是一类潜在的内分泌干扰物,其对生殖健康的影响受到关注。该文综... 详细信息

拟除虫菊酯类杀虫剂广泛应用于农业园林和家庭室内的防虫除虫,在环境广泛残留,可通过多种暴露途径进入生物体,对人类健康产生潜在危害。已有研究表明,拟除虫菊酯类杀虫剂是一类潜在的内分泌干扰物,其对生殖健康的影响受到关注。该文综述了拟除虫菊酯类杀虫剂暴露与女性生殖健康相关的环境流行病学研究以及雌性生殖毒性相关的毒理学实验研究,并探讨了其诱导女性/雌性生殖毒性的潜在分子机制。可为深入研究拟除虫菊酯类杀虫剂对女性生殖健康的影响及毒性机制提供参考。

关键词：拟除虫菊酯生殖健康毒性机制

Multi-omics analyses of 398 foxtail millet accessions reveal genomic regions associated with domestication,metabolite traits,and antiinflammatory effects

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Molecular Plant 2022年第8期15卷 1367-1383页

作者： Xukai Li Jianhua Gao jingyi song Kai Guo Siyu Hou Xingchun Wang Qiang He Yanyan Zhang Yakun Zhang Yulu Yang Jiaoyan Tang Hailang Wang Staffan Persson Mingquan Huang Lishuai Xu Linlin Zhong Dongqin Li Yongming Liu Hua Wu Xianmin Diao Peng Chen Xiaowen Wang Yuanhuai Han Shanxi Key Laboratory of Minor Crop Germplasm Innovation and Molecular Breeding College of Life SciencesShanxi Agricultural UniversityTaiguChina Key Laboratory of Brewing Molecular Engineering of China Light Industry Beijing Technology and Business UniversityBeijingChina Department of Neurology University of MichiganAnn ArborMIUSA Shanxi Key Laboratory of Minor Crop Germplasm Innovation and Molecular Breeding College of AgricultureShanxi Agricultural UniversityTaiguChina Institute of Crop Sciences Chinese Academy of Agricultural SciencesBeijingChina Colllege of Plant Science and Technology Huazhong Agricultural UniversityWuhanChina Copenhagen Plant Science Centre Department of Plant&Environmental SciencesUniversity of CopenhagenFrederiksberg CDenmark Joint International Research Laboratory of Metabolic and Developmental Sciences School of Life Sciences and BiotechnologyShanghai Jiao Tong UniversityMinhangShanghai 200240China College of Resources and Environment Shanxi Agricultural UniversityTaiguChina College of Horticulture and Forestry Sciences Huazhong Agricultural UniversityWuhanChina National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural UniversityWuhanChina Grandomics Biosciences Company Limited BeijingChina College of Food Science and Engineering Shanxi Agricultural UniversityTaiguChina

Foxtail millet(Setaria italica),which was domesticatedfromthewild speciesgreenfoxtail(Setaria viridis),isa richsource of phytonutrientsfor *** evaluate how breeding changed themetabolome offoxtail millet grains,we generated and analyzed the datasets encompassing the genomes,transcriptomes,metabolomes,and anti-inflammatory indices from 398 foxtail millet *** identified hundreds of common variants that influence numerous secondary *** observed tremendous differences in natural variations of the metabolites and their underlying genetic architectures between distinct sub-groups of foxtail ***,we found that the selection of the gene alleles associated with yellow grains led to altered profiles of metabolites such as carotenoids and endogenous *** CRiSPR-mediated genome editing wevalidated the function of PHYTOENE SYNTHASE1(PSY1)gene in affecting milletgrain colorand ***,our in vitro cell inflammation assays showed that 83 metabolites in millet grains have anti-inflammatory *** together,ourmulti-omics study illustrates how the breeding history of foxtail millet has shaped its metabolite *** datasets we generated in this study also provide important resources for further understanding how millet grain quality is affected by different metabolites,laying the foundations for future millet genetic research and metabolome-assisted improvement.

关键词： foxtail millet multi-omics,genetic association metabolome transcriptome anti-inflammatory effects

译介学视域下的文学翻译批评:从文本阐释、译文产出到读者接受

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翻译界 2024年第2期 69-81页

作者：宋静怡江西农业大学

在全球化和文化转向的时代背景下,谢天振教授提出的“译介学”理论为翻译批评研究提供了新的视角。本文基于译介学理论,围绕文学翻译的三个关键环节——文本阐释、译文产出和读者接受,探讨了翻译批评的现状与问题,并尝试构建一个更为宏... 详细信息

在全球化和文化转向的时代背景下,谢天振教授提出的“译介学”理论为翻译批评研究提供了新的视角。本文基于译介学理论,围绕文学翻译的三个关键环节——文本阐释、译文产出和读者接受,探讨了翻译批评的现状与问题,并尝试构建一个更为宏观、科学的文学翻译批评范式。在文本阐释阶段,译者应深入挖掘原文的文化内涵与审美意蕴,避免盲目追求字面对等;在译文产出阶段,译者要在忠实传达原文内容的同时,发挥创造性,突破语言的表层束缚,创造性地再现原作的文化意象;在读者接受阶段,译者应重视译作在译语文化语境中的传播效果,将读者反应纳入翻译批评的考量范畴。

关键词：文化转向译介学文学翻译翻译批评

Establishing the vector-meson-exchange dominance for the short range interactions of light quarks

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Science China(Physics,Mechanics & Astronomy) 2025年第3期Mechanics & Astronomy) .卷 194-195页

作者： Bing-song Zou Department of Physics Tsinghua University CAS Key Laboratory of Theoretical Physics Institute of Theoretical Physics Chinese Academy of Sciences School of Physics University of Chinese Academy of Sciences Southern Center for Nuclear-Science Theory (SCNT) Institute of Modern Physics Chinese Academy of Sciences

Understanding the interactions between constituent quarks is one of the fundamental and challenging problems in hadron physics. At present, the constituent quark models have achieved great success in describing the properties of hadrons, whereas some long-standing disputes remain, especially for the short range interactions between constituent quarks. In exploring the dynamic mechanism between u/d quarks, it is found that the one gluon exchange and/or vector meson exchange induced interactions may dominate the short range interactions [1].

关键词： quark exchange meson

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负荷管理系统在电力市场营销中的重要作用

大众用电 2020年第9期36卷 13-14页

作者：宋婧仪国网大连开发区东部供电公司

1我国供电企业营销自动化系统存在的问题(1)缺少着眼于企业级战略高度的系统设计,业务处理和工作流程不规范,应用水平参差不齐;(2)上级部门不能实时监控下级各电力营销点的生产、经营状况;(3)配电与营业于不同的管理部门,无法从根本上... 详细信息

1我国供电企业营销自动化系统存在的问题(1)缺少着眼于企业级战略高度的系统设计,业务处理和工作流程不规范,应用水平参差不齐;(2)上级部门不能实时监控下级各电力营销点的生产、经营状况;(3)配电与营业于不同的管理部门,无法从根本上形成一口对外及为客户提供高效的优质服务;(4)信息系统基础薄弱。

关键词：电力市场营销电力营销自动化系统信息系统负荷管理系统优质服务实时监控经营状况

基于40Gb/s非等幅OTDM传输系统的优化设计

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长春理工大学学报（自然科学版） 2007年第3期30卷 34-36页

作者：宋静怡吉林大学电子科学与工程学院长春130012

本文在40Gb/s非等幅OTDM传输系统的基础上,围绕超短脉冲的产生、信号复用、色散补偿和时钟提取技术进行优化设计。介绍了采用掺铒光纤放大器获得超短脉冲;利用方程差微调法获得光时分复用信号和易于实现动态色散补偿的啁啾光纤光栅实现... 详细信息

本文在40Gb/s非等幅OTDM传输系统的基础上,围绕超短脉冲的产生、信号复用、色散补偿和时钟提取技术进行优化设计。介绍了采用掺铒光纤放大器获得超短脉冲;利用方程差微调法获得光时分复用信号和易于实现动态色散补偿的啁啾光纤光栅实现色散补偿,以及通过适于高速光时分复用系统的光时钟提取技术提取时钟脉冲等内容。最后给出了低抖动、低误码率、性能稳定的传输系统。

关键词：光时分复用色散补偿光纤(DCF) 梳状色散光纤链(CDPF) 电吸收调制器(EAM) 光电锁相环(PLL)

一种新型石膏空腔模无梁楼盖拓扑结构及静力分析

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铁道建筑技术 2015年第12期 86-89页

作者：宋璟毅中铁建设集团有限公司北京100040

石膏空腔模无梁楼盖是以预制石膏空腔模为永久性施工内模的整体现浇空心楼盖,有密肋式、空腹板架式、井字-空腹板架组合式、井式、9区格式五种结构。用ANSYS对不同情况下的双跨、三跨楼盖做拓扑优化,得到72张单元伪密度云图并归纳伪密... 详细信息

石膏空腔模无梁楼盖是以预制石膏空腔模为永久性施工内模的整体现浇空心楼盖,有密肋式、空腹板架式、井字-空腹板架组合式、井式、9区格式五种结构。用ANSYS对不同情况下的双跨、三跨楼盖做拓扑优化,得到72张单元伪密度云图并归纳伪密度分布规律,在此基础上设计一种新型结构——暗柱帽-悬挑三肋楼盖。用ANSYS对暗柱帽-悬挑三肋楼盖做竖向荷载作用下的静力特性理论分析,详细研究其挠度和正应力分布。研究表明:暗柱帽-悬挑三肋楼盖的正应力分布不呈实体板特征,不利于发挥材料强度和配筋设计;但是混凝土用量少、竖向刚度好、峰值拉应力小,适合大跨度、大荷载的楼盖结构。

关键词：石膏空腔模拓扑结构暗柱帽-悬挑三肋楼盖静力特性