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Genome size evolution of the extant lycophytes and ferns

Plant Diversity 2022年第2期44卷 141-152页

作者： Fa-Guo Wang Ai-Hua Wang Cheng-Ke Bai Dong-Mei Jin Li-Yun Nie AJ Harris Le Che Juan-JuanWang Shi-Yu Li lei Xu Hui Shen Yu-Feng Gu Hui Shang lei duan Xian-Chun Zhang Hong-Feng Chen Yue-Hong Yan Key Laboratory of Plant Resources Conservation and Sustainable Utilization Guangdong Provincial Key Laboratory of Applied BotanySouth China Botanical GardenChinese Academy of SciencesGuangzhou510650China College of Life Sciences Shaanxi Normal UniversityXi'an710062China Eastern China Conservation Centre for Wild Endangered Plant Resources Shanghai Chenshan Botanical GardenShanghai201602China Key Laboratory of Environment Change and Resources Use in Beibu Gulf Ministry of EducationNanning Normal UniversityNanning530001China Department of Biology Oberlin CollegeOberlinOH44074USA State Key Laboratory of Systematic and Evolutionary Botany Institute of BotanyChinese Academy of SciencesBeijing100093China Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization the National Orchid Conservation Center of China and the Orchid Conservation&Research Center of Shenzhen518114ShenzhenChina Life Science and Technology College Harbin Normal UniversityHarbin150025China

Ferns and lycophytes have remarkably large ***,little is known about how their genome size evolved in fern *** explore the origins and evolution of chromosome numbers and genome size in ferns,we used flow cytometry to measure the genomes of 240 species(255 samples)of extant ferns and lycophytes comprising 27 families and 72 genera,of which 228 species(242 samples)represent new *** analyzed correlations among genome size,spore size,chromosomal features,phylogeny,and habitat type preference within a phylogenetic *** also applied ANOVA and multinomial logistic regression analysis to preference of habitat type and genome *** the phylogeny,we conducted ancestral character reconstruction for habitat types and tested whether genome size changes simultaneously with shifts in habitat *** found that 2 C values had weak phylogenetic signal,whereas the base number of chromosomes(x)had a strong phylogenetic ***,our analyses revealed a positive correlation between genome size and chromosome traits,indicating that the base number of chromosomes(x),chromosome size,and polyploidization may be primary contributors to genome expansion in ferns and *** sizes in different habitat types varied significantly and were significantly correlated with habitat types;specifically,multinomial logistic regression indicated that species with larger 2 C values were more likely to be *** habitat is inferred to be ancestral for both extant ferns and lycophytes,whereas transitions to other habitat types occurred as the major clades *** in habitat types appear be followed by periods of genomic *** on these results,we inferred that habitat type changes and multiple whole-genome duplications have contributed to the formation of large genomes of ferns and their allies during their evolutionary history.

关键词： Genome size Ferns Chromosome numbers Habitat type Whole-genome duplications Evolution

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Occurrence and Spatial distribution of pharmaceutically active compounds at urban and suburban areas in Beijing, China

Occurrence and Spatial distribution of pharmaceutically acti...

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持久性有机污染物论坛2018暨化学品环境安全大会

作者： lei duan Yizhe Zhang Bin Wang Gang Yu Beijing Key Laboratory of Emerging Organic Contaminants Control State Key Joint Laboratory of Environmental Simulation And Pollution Control School of Environment Tsinghua University

＜正＞*** Pharmaceutically active compounds（PhACs） are investigated and reported widely all over world, especially in surface water and wastewater treatment plants. The special characterastics of these compounds, like "pseudo-persistence" and "side-effects"have led to increasing concern on their occurrences, migrations and ecological effects. Moreover, according to many previous studies,

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Sewage epidemiology study of antibiotics in major wastewater treatment plants

Sewage epidemiology study of antibiotics in major wastewater...

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持久性有机污染物论坛2018暨化学品环境安全大会

作者： Zhang Yizhe duan lei Wang Bin Yu Gang Beijing Key Laboratory of Emerging Organic Contaminants Control State Key Joint Laboratory of Environmental Simulation and Pollution Control School of Environment Tsinghua University Research Institute for Environmental Innovation (Suzhou)

＜正＞*** Sewage epidemiology is becoming a more and more valuable research field. In this way, drug abuse and other closely related human behavior can be studied. However, such novel approach has great potentials to correlate a wide range of environmental, social, and economic aspects to pharmaceutical micropollution. In this study, we measured 23 antibiotics in Beijing（China） downtown to explore the impacts of drug use habit. In this case, all the studied WWTPs are designed only to receive and treat domestic sewage.

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Graphitic carbons:preparation,characterization,and application on K-ion batteries

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Rare Metals 2024年第9期43卷 4056-4075页

作者： Kang-Zhe Cao Jia-Hui Ma Yu-Lian Dong Yu duan Run-Tian Zheng Dharani Bundhooa Hui-Qiao Liu Yong lei College of Chemistry and Chemical Engineering Xinyang Normal UniversityXinyang 464000China Xinyang Key Laboratory of Low-Carbon Energy Materials Xinyang 464000China Fachgebiet Angewandte Nanophysik Institut fur Physik&IMN MacroNanoTechnische Universitat Ilmenau98693 IlmenauGermany Laboratory of Inorganic Materials Chemistry(CMI) University of NamurB-5000 NamurBelgium

K-ion batteries(KIBs)have drawn much attention due to the abundant potassium reserves and wide accessibility as well as high energy density,which can be designed for large-scale energy storage *** the most promising anode materials for KIBs,graphitic carbons,especially those with an intermediate structure between the crystalline graphite and amorphous carbons become a hot research focus because of the improved rate capability and enhanced diffusion-controlled capacity at low voltage ***,we first review the structures of graphitic carbons in the view of graphitic domains and the structure changes in their K-ion intercalation ***,we summarize the preparation mechanisms and characterizations of graphitic carbons and the influence factors in their degree of ***,we illustrate the strategies to optimize their K-ion storage properties from four aspects,namely graphitic domain design,microstructure engineering,electrochemical active component regulation,and defect ***,we propose the issues that urgently need to be solved in graphitic carbons and the possible *** hope that this view could offer some inspiration for the further designing and optimizing of graphitic carbons for practical KIBs.

关键词： Graphitic carbon K-ion battery Anode Graphite Structure design

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基于感官评价的坚果制品食品包装设计研究

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食品研究与开发 2016年第23期37卷 14-16页

作者：段雷吉林动画学院吉林长春130000

通过感官评价的方式比较两种不同的包装材料以及密封、真空和铁基除氧剂包装方式对混合坚果制品的品质影响。结果表明,93.8μm PET铝塑复合膜包装明显提高坚果包装后的保存时间,并具有最佳的感官评价指标。采用铁基除氧剂的包装方式,均... 详细信息

通过感官评价的方式比较两种不同的包装材料以及密封、真空和铁基除氧剂包装方式对混合坚果制品的品质影响。结果表明,93.8μm PET铝塑复合膜包装明显提高坚果包装后的保存时间,并具有最佳的感官评价指标。采用铁基除氧剂的包装方式,均具有较好的包装作用,两组在坚果储存过程中,品质变化不明显。综上所述,93.8μm PET铝塑复合膜结合真空包装或铁基除氧剂包装可以明显保障坚果品质,并具有理想的感官评价评分,适合企业采用。

关键词：感官评价铝塑包装膜真空铁基除氧剂

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新型宽温区压力传感器技术

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仪表技术与传感器 2009年第12期 17-18页

作者：段磊上海交通大学船舶海洋与建筑工程学院上海200030

为研制新型耐高温和耐低温压力传感器,提出了一种基于SOS(蓝宝石上硅)技术制造的压力传感器。所述硅-蓝宝石压力传感器采用先封装再刻制应变电阻的新工艺,制成的应变电阻和补偿用热电阻精度高、质量好,且在整个工艺流程中不使用化学药品... 详细信息

为研制新型耐高温和耐低温压力传感器,提出了一种基于SOS(蓝宝石上硅)技术制造的压力传感器。所述硅-蓝宝石压力传感器采用先封装再刻制应变电阻的新工艺,制成的应变电阻和补偿用热电阻精度高、质量好,且在整个工艺流程中不使用化学药品,对环境无污染。制成的硅-蓝宝石压力传感器,可以测量在-55^+400℃宽温区范围内的流体压力,并可以同时测量温度。给出了该传感器的试验数据,得到了比较满意的结果。

关键词：宽温区压力传感器蓝宝石上硅技术

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Synthesis, structure, and properties of Ba9Co3Se(15) with one-dimensional spin chains

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Chinese Physics B 2020年第3期29卷 330-334页

作者： lei duan Xian-Cheng Wang Jun Zhang Jian-Fa Zhao Li-Peng Cao Wen-Min Li Run-Ze Yu Zheng Deng Chang-Qing Jin Institute of Physics Chinese Academy of SciencesBeijing 100190China School of Physics University of Chinese Academy of SciencesBeijing 100190China Materials Research Laboratory at Songshan Lake Dongguan 523808China

A new compound with one-dimensional spin chains, Ba9Co3Se(15), was synthesized under high pressure and high temperature conditions and systematically characterized via structural, transport and magnetic measurements. Ba9Co3Se(15) crystallizes in a hexagonal structure with the space group P-6c2(No. 188) and lattice constants of a = b = 9.6765 ? and c = 18.9562 ?. The structure consists of trimeric face-sharing octahedral CoSe6 chains, which are arranged in a triangular lattice in the ab-plane and separated by Ba atoms. The distance of the nearest neighbor of CoSe6 chains is very large, given by the lattice constant a = 9.6765 ?. The Weiss temperature Tθ associated with the intra-chain coupling strength is about -346 K. However, no long-range magnetic order but a spin glass transition at ~ 3 K has been observed. Our results indicate that the spin glass behavior in Ba9Co3Se(15) mainly arises from the magnetic frustration due to the geometrically frustrated triangular lattice.

关键词： one-dimensional chain spin glass high-pressure

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论梭戛长角苗服饰演变的三重向度

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丝绸 2015年第1期52卷 71-75页

作者：段磊四川美术学院中国画系重庆401331

以贵州六枝特区的梭戛长角苗服饰为研究对象,采取历时文献溯源和同时性田野调查的艺术人类学研究方法,通过对长角苗服饰本体进行细致深入地研究,梳理了长角苗服饰在造型、材料、工艺三重向度上的演变历程。概述了梭戛长角苗服饰在这一... 详细信息

以贵州六枝特区的梭戛长角苗服饰为研究对象,采取历时文献溯源和同时性田野调查的艺术人类学研究方法,通过对长角苗服饰本体进行细致深入地研究,梳理了长角苗服饰在造型、材料、工艺三重向度上的演变历程。概述了梭戛长角苗服饰在这一历史时期中对周围先进文化的融合与吸纳,揭示梭戛长角苗服饰演变背后当地人审美价值观念的转变和长角苗服饰发展的一般规律,力求探寻服饰与长角苗民族文化的内在联系,进而将这个正处于经济快速发展背景下并且正走向开放的梭戛长角苗服饰清晰地展示出来。

关键词：长角苗服饰服饰造型材料工艺演变三重向度

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互联网纪录片的解说模态创新——以《人生一串》为例

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电影评介 2021年第1期 41-43页

作者：段蕾山西传媒学院播音主持学院山西传媒学院语言基础教研室

近年来,纪录片已经成为各大视频网站在综艺、剧集、电影之外的又一重要的流量担当,甚至在网络中形成现象级传播。例如,由哔哩哔哩(又称“B站”)和旗帜传媒联合出品的美食类纪录片《人生一串》,在哔哩哔哩平台独家播放,该片一经播出,引... 详细信息

近年来,纪录片已经成为各大视频网站在综艺、剧集、电影之外的又一重要的流量担当,甚至在网络中形成现象级传播。例如,由哔哩哔哩(又称“B站”)和旗帜传媒联合出品的美食类纪录片《人生一串》,在哔哩哔哩平台独家播放,该片一经播出,引起了年轻人的广泛关注。

关键词：联合出品纪录片视频网站互联网哔哩哔哩

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Distribution of groundwater salinity and formation mechanism of fresh groundwater in an arid desert transition zone

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Journal of Groundwater Science and Engineering 2015年第3期3卷 268-279页

作者： ZHOU Li-ling CHENG Zhe duan lei WANG Wen-ke Geology Environment Monitoring Institute of Zhejiang Province HangzhouZhejiang 310007China Beijing Geotechnical and Investigation Engineering Institute Beijing 100083China School of Environmental Science and Engineering Chang’an UniversityXi’anShaanxi 710054China

This study reviews the distribution of groundwater salinity in an arid desert transition zone. By combining field experiments and computer simulation models we make a comprehensive analysis of the formation mechanism of fresh groundwater in relation to the paleogeographic conditions of lithofacies, the geochemical characteristics of the aquifer media, salt deliverability in the vadose zone and prevailing hydrodynamic conditions. The results demonstrate that(1) the lacustrine facies deposition stratum of the Huanhe formation in the Cretaceous system provides a brackish-salt groundwater environment;(2) the average salinity of parent rocks are approximately 440 mg/kg and 4 371 mg/kg in the Quaternary eolian sand and the Cretaceous Huanhe formation respectively, suggesting that parent rocks are the principal controlling factor in the distribution of groundwater quality given that mineral and chemical composition of the eolian sand is simpler than that of the Huanhe formation;(3) average groundwater flow rates are approximately 0.25 m/d and 0.1 m/d in eolian sand and Huanhe formation aquifers respectively, indicating that hydrodynamic conditions play an important role in driving in the formation and evolution of fresh groundwater;(4) The salinity deliverability in the vadose zone overlying the aeolian sand and Huanhe formation aquifers are approximately 15.97 mg/L and 220.42 mg/L respectively, signifying that the combination of lithology and salt content of vadose zone, rainfall infiltration, evapotranspiration and concentration heavily influence the formation, distribution and evolution of groundwater quality. This study can provide a scientific basis for the sustainable development and utilization of groundwater resources in arid areas.

关键词： Desert transition zone Distribution of groundwater salinity Formation mechanism of fresh groundwater Arid area

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