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十种常用杀虫剂对不同龄期家蚕的急性毒性试验

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北方蚕业 2013年第2期34卷 19-22页

作者：谢道燕田梅金柴建萍刘永光倪婧江秀均罗雁婕云南省农业科学院蚕桑蜜蜂研究所云南蒙自661101

采用毒叶饲喂法(浸渍法)在室内进行10种常用杀虫剂对2-5龄家蚕的急性毒性试验。结果表明:2-4龄起蚕的敏感性比5龄强,2龄最敏感;喂食毒叶后12h的死亡率比24h的高;对于不同类型的杀虫剂,2-5龄起蚕的急性中毒症状比较相似。

关键词：杀虫剂家蚕中毒症状

乙唑螨腈、丁氟螨酯和腈吡螨酯对家蚕的安全性评价

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现代农药 2024年第5期23卷 78-82页

作者：杨振国谢道燕柴建萍江秀均倪婧李玲利邵榆岚白兴荣云南省农业科学院蚕桑蜜蜂研究所云南蒙自661101

为了明确乙唑螨腈、丁氟螨酯和腈吡螨酯对家蚕的安全性,采用叶片饲喂法测定了3种杀螨剂对家蚕3龄幼虫的急性毒性和亚致死剂量对家蚕结茧性能的影响。结果表明,3种杀螨剂对家蚕3龄幼虫的致死中浓度大于2000 mg/L。3种杀螨剂对家蚕4龄幼... 详细信息

为了明确乙唑螨腈、丁氟螨酯和腈吡螨酯对家蚕的安全性,采用叶片饲喂法测定了3种杀螨剂对家蚕3龄幼虫的急性毒性和亚致死剂量对家蚕结茧性能的影响。结果表明,3种杀螨剂对家蚕3龄幼虫的致死中浓度大于2000 mg/L。3种杀螨剂对家蚕4龄幼虫的上蔟率、结茧率无显著影响,但上蔟后,腈吡螨酯处理的蔟中死亡率和死笼率高于空白对照处理。乙唑螨腈处理的全茧量、茧层量低于对照处理,而蛹体重、茧层率与空白对照无显著性差异;腈吡螨酯500、250 mg/L处理的全茧量、茧层量、蛹体重低于空白对照处理,125 mg/L处理的茧层量、蛹体重显著高于对照处理,3个处理的茧层率显著高于空白对照处理;丁氟螨酯3个处理的全茧量、茧层量、蛹体重、茧层率显著高于对照处理。3种杀螨剂对家蚕低毒,推荐剂量下对家蚕结茧性能的影响较小,可用于桑园防控红蜘蛛。

关键词：乙唑螨腈丁氟螨酯腈吡螨酯家蚕急性毒性结茧性能安全性

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The Supply-side Analysis and Countermeasures of Exuberant Phenomenon of Outbound Consumption at Present

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Proceedings of Business and Economic Studies 2018年第1期1卷 25-30页

作者： chai Guojun Li jianping The School of Business Hebei University of Economics and BusinessShijiazhuang 050061China

In recent years,the exuberant phenomenon of Chinese residents leaving the country shopping has caused much attention in academic *** game theory,from the supply-side not the demandside interpreting outbound consumption boom,it is the addition of brand value and reputation guarantee,as a result,the middle-and high-end consumers in our country are more willing to go abroad to purchase well-known foreign brand products,not to purchase domestic products with low prices,and not to favor the high domestic prices of foreign ***,to guide the overseas consumption backflow of middleand high-income families,we need to implement supply-side structural reform such as strengthening the brand construction of national enterprises,attaching importance to scientific research input and human capital accumulation.

关键词： outbound consumption brand value repeated game supply-side structural reform

Two types of cinnamoyl-Co A reductase function divergently in accumulation of lignins,flavonoids and glucosinolates and enhance lodging resistance in Brassica napus

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The Crop Journal 2022年第3期10卷 647-660页

作者： Nengwen Yin Bo Li Xue Liu Ying Liang jianping Lian Yufei Xue Cunmin Qu Kun Lu Lijuan Wei Rui Wang Jiana Li Yourong chai Chongqing Engineering Research Center for Rapeseed Chongqing Key Laboratory of Crop Quality ImprovementCollege of Agronomy and BiotechnologySouthwest UniversityChongqing 400715China Engineering Research Center of South Upland Agriculture of Ministry of Education Academy of Agricultural SciencesSouthwest UniversityChongqing 400715China

Brassica crops,which are of worldwide importance,provide various oil,vegetable and ornamental products,as well as feedstocks for animal husbandry and biofuel ***-Co A reductase(CCR)is the entry point to the lignin pathway and a crucial locus in manipulation of associated traits,but CCRassociated metabolism and traits in Brassica crops have remained largely unstudied except in Arabidopsis *** report the identification of 16 CCR genes from Brassica napus and its parental species *** and *** Bn CCR1 and Bn CCR2 subfamilies displayed divergent organ-specificity and participation in the yellow-seed *** functions were dissected via overexpression of representative paralogs in *** CCR1 was expressed preferentially in G-and H-lignin biosynthesis and vascular development,while Bn CCR2 was expressed in S-lignin biosynthesis and interfascicular fiber *** CCR1 showed stronger effects on lignification-related development,lodging resistance,phenylpropanoid flux control,and seed coat pigmentation,whereas Bn CCR2 showed a stronger effect on sinapate *** CCR1 upregulation delayed bolting and flowering time,while Bn CCR2 upregulation weakened the leaf vascular system in consequence of suppressed G-lignin *** CCR1 and Bn CCR2 were closely but almost oppositely linked with glucosinolate metabolism via inter-pathway *** conclude that Bn CCR1 and Bn CCR2 subfamilies offer great but differing potential for manipulating traits associated with phenylpropanoids and *** study reveals the CCR1–CCR2 divergence in Brassicaceae and offers a resource for rapeseed breeding for lodging resistance,yellowseed traits,and glucosinolate traits.

关键词： Brassica napus Cinnamoyl-CoA reductase(CCR) Lignin Flavonoids Lodging

Twenty years of ocean observations with China Argo

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Acta Oceanologica Sinica 2023年第2期42卷 1-16页

作者： Zenghong Liu Xiaogang Xing Zhaohui Chen Shaolei Lu Xiaofen Wu Hong Li Chunling Zhang Lijing Cheng Zhaoqin Li Chaohui Sun jianping Xu Dake Chen Fei chai State Key Laboratory of Satellite Ocean Environment Dynamics Second Institute of OceanographyMinistry of Natural ResourcesHangzhou310012China Observation and Research Station of Global Ocean Argo System(Hangzhou) Ministry of Natural ResourcesHangzhou310012China Frontier Science Center for Deep Ocean Multispheres and Earth System/Key Laboratory of Physical Oceanography Ocean University of ChinaQingdao266100China Department of Atmospheric and Oceanic Sciences/Institute of Atmospheric Sciences Fudan UniversityShanghai200438China College of Marine Sciences Shanghai Ocean UniversityShanghai201306China International Center for Climate and Environment Sciences Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing100029China

The international Argo program,a global observational array of nearly 4000 autonomous profiling floats initiated in the late 1990s,which measures the water temperature and salinity of the upper 2000 m of the global ocean,has revolutionized *** has been recognized one of the most successful ocean observation systems in the ***,the proposed decade action“OneArgo”for building an integrated global,full-depth,and multidisciplinary ocean observing array for beyond 2020 has been *** the past two decades since 2002,with more than 500 Argo deployments and 80 operational floats currently,China has become an important partner of the Argo *** DACs have been established to process the data reported from all Chinese floats and deliver these data to the GDACs in real time,adhering to the unified quality control procedures proposed by the Argo Data Management *** Argo products have been developed and released,allowing accurate estimations of global ocean warming,sea level change and the hydrological cycle,at interannual to decadal *** addition,Deep and BGC-Argo floats have been deployed,and time series observations from these floats have proven to be extremely useful,particularly in the analysis of synoptic-scale to decadal-scale *** future aim of China Argo is to build and maintain a regional Argo fleet comprising approximately 400 floats in the northwestern Pacific,South China Sea,and Indian Ocean,accounting for 9%of the global fleet,in addition to maintaining 300 Deep Argo floats in the global ocean(25%of the global Deep Argo fleet).A regional BGC-Argo array in the western Pacific also needs to be established and maintained.

关键词： Argo program China Argo ocean observation core Argo Deep Argo BGC-Argo

考虑运距与温度的地铁板式无砟轨道自密实混凝土性能调控研究

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中国建材科技 2023年第1期32卷 38-42页

作者：管吉波张宏波郑晓练刘锦辉柴剑平李颖洁彭杰波曾晓辉深圳市市政设计研究院有限公司广东深圳518038 中铁五局集团有限公司湖南长沙410117 深圳市地铁集团有限公司广东深圳518038 中铁三局工程集团有限公司山西太原030001 中南大学土木工程学院湖南长沙410075

针对地铁板式无砟轨道自密实混凝土施工过程中因运距远、温度高导致的流动性损失、难以施工问题,通过模拟灌板试验,研究不同工况下自密实混凝土流动性调控技术。结果表明,地下运输距离较短时(小于5km),自密实混凝土采用普通型减水剂即... 详细信息

针对地铁板式无砟轨道自密实混凝土施工过程中因运距远、温度高导致的流动性损失、难以施工问题,通过模拟灌板试验,研究不同工况下自密实混凝土流动性调控技术。结果表明,地下运输距离较短时(小于5km),自密实混凝土采用普通型减水剂即可满足施工要求;地下运输距离较长时(大于5km),为保证自密实混凝土有较好的流动性能,需加入超缓凝型减水剂才满足施工要求;当温度在20℃左右时,掺入3.0%普通型减水剂的自密实混凝土流动性良好,满足施工要求;当温度高于35℃时,掺入2.8%缓凝型减水剂以改善自密实混凝土的保坍性和流动性,满足施工要求。

关键词：自密实混凝土远距离运输高温减水剂

Identification of Symbiotic Bacteria on the Skin of Rana dybowskii

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Identification of Symbiotic Bacteria on the Skin of Rana dyb...

中国生理学会第24届全国会员代表大会暨生理学学术大会

作者： Zhang jianping Zhang Jingyu Li Yu Xiao Xianghong Wang Jinghan chai Longhui Northeast Forestry University.College of wildlife resources

Amphibian populations in many parts of the world appear to be declining caused by infectious *** skin bacteria on healthy individuals may limit *** experimental have attempted to find the fungal pathogens cause of amphibians declines and the cutaneous antifungal bacteria species,but few of the natural bacteria flora resident on amphibian *** this study,we attempted to identify the natural bacteria flora that are resident species on amphibian *** bacteria were isolated from the cutaneous of healthy adult Rana dybowskii living in natural field sites in Tonghe and artificial culture field Baoquanling farm of Heilongjiang province,*** identified bacterial genera by sequencing of the 16S r DNA gene,were related to Sphingomonas,Acinetobacter,Janthinobacterium,Comamonas,Ralstonia,Aquitalea,Chryseobacterium,Microbacterium,Brevundimonas,Aeromonas and *** examined the community-level physiological profiles（CLPP）of bacterial communities at these two sites of Rana *** was a highly difference of bacterial community similarity,and co-habitation individuals was not significant,highlighting that the skin-associated bacterial communities reflect those bacterial communities found in their surrounding *** cutaneous bacteria are a part of amphibians’innate immune system,form mutualistic ecological relationships with amphibian *** microbial community structure is a determinant of disease outcome.

关键词： Amphibian shin microflora CLPP

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不同深度玄武岩的三点弯曲细观破坏实验研究

岩石力学与工程学报 2013年第4期32卷 689-695页

作者：左建平柴能斌周宏伟中国矿业大学煤炭资源与安全开采国家重点实验室北京100083 中国矿业大学力学与建筑工程学院北京100083

现有深部岩石力学研究大多是从某一深度取出岩样,然后施加不同围压用于模拟不同深度,由此来研究不同深度情况下岩石的物理力学行为这一情况,然而实际中如果深度发生变化,不仅围压发生变化,岩石自身的微细观结构也会发生变化。针对此情况... 详细信息

现有深部岩石力学研究大多是从某一深度取出岩样,然后施加不同围压用于模拟不同深度,由此来研究不同深度情况下岩石的物理力学行为这一情况,然而实际中如果深度发生变化,不仅围压发生变化,岩石自身的微细观结构也会发生变化。针对此情况,选取北京门头沟一个有特点的区域,该区域从地表到深度1 100多米都有玄武岩。借助带加载装置扫描电镜(SEM)系统实时观察中心预制缺口不同深度玄武岩、偏心单裂纹及双裂纹玄武岩的细观破坏行为,揭示深度导致岩石力学性能变化的细观机制。研究发现,三点弯曲玄武岩试样中裂纹多数从预置缺口处萌生,进而发展成一条连续主裂纹。不同深度玄武岩的破坏荷载及断裂能随埋深呈增加趋势,主要原因是随着深度增加玄武岩更为致密,孔隙率小;相同偏心距下,偏心单、双2组试样峰值荷载和断裂能都几乎相同,且都随偏心距的增大而线性增加,主要原因是偏置裂纹试件缺口附近受到剪切力和弯矩的双重影响,但随着偏心距离的增加,弯矩影响在逐渐减少,这导致了峰值荷载和断裂能增加。

关键词：岩石力学门头沟玄武岩不同深度细观实验破坏机制中心预制缺口偏置缺口

门头沟玄武岩细观矿物组成与宏观力学行为的关联性研究

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应用基础与工程科学学报 2015年第5期23卷 942-951页

作者：左建平柴能斌赵灿刘敏中国矿业大学力学与建筑工程学院北京100083 山东科技大学山东省矿山灾害预防控制国家重点实验室培育基地青岛266590

把玄武岩视为硬质矿物和黏土质矿物两部分组成,提出了基于软-硬两部分的空间体积平均估算方法,估算的弹性模量与实验结果较为吻合.探讨了不同深度玄武岩矿物组成与宏观力学性质的关系,研究表明:高强度的矿物当含量较低时对整体力学性质... 详细信息

把玄武岩视为硬质矿物和黏土质矿物两部分组成,提出了基于软-硬两部分的空间体积平均估算方法,估算的弹性模量与实验结果较为吻合.探讨了不同深度玄武岩矿物组成与宏观力学性质的关系,研究表明:高强度的矿物当含量较低时对整体力学性质的影响并不明显,只有含量超过某一门槛值后才有较大影响.如石英和斜长石强度都较高,但门头沟玄武岩石英含量低于15%时,石英含量在小范围的增加并不一定会导致岩石强度出现明显的提升;而当斜长石在42.5%—49.2%之间发生变化时,含量增加导致弹性模量和单轴抗压强度有明显增加的趋势.随着埋深增加,门头沟玄武岩中黏土质矿物含量在不断减小,而软弱黏土质矿物含量的减少,明显导致玄武岩的宏观力学行为的显著变化,这是深部岩石与浅部岩石的破坏机理及强度特性存在差异的一个重要原因.

关键词：玄武岩矿物组成宏观力学行为宏细观关联性黏土矿物