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极尖区电离层离子与地磁活动及太阳风的相关分析

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科学通报 2007年第3期52卷 339-343页

作者：郭建广史建魁 T.L.Zhang 刘振兴 A.Fazakerley H.Rème I.Dandouras e.Lucek 中国科学院空间天气学国家重点实验室 Space Research Institute Aus-trian Academy of SciencesGrazA-8010 Austria Mullard Space Science Laboratory University College LondonHolmbury St.MaryDorking RH5 6NTUK Centred'etude Spatiale des Rayonnements Toulouse 31028France Imperial College LondonS 272B2UK

对2001～2003年间Cluster星簇穿越极尖区期间观测到的电离层起源的离子(O+离子,He+离子和H+离子)特性进行了统计分析,主要研究了这些离子的数密度与地磁活动以及太阳风动压之间的关系.结果表明:O+离子数密度和地磁活动指数Kp之间存在着... 详细信息

对2001～2003年间Cluster星簇穿越极尖区期间观测到的电离层起源的离子(O+离子,He+离子和H+离子)特性进行了统计分析,主要研究了这些离子的数密度与地磁活动以及太阳风动压之间的关系.结果表明:O+离子数密度和地磁活动指数Kp之间存在着正相关关系,He+离子数密度和地磁活动指数Kp不相关,O+离子和He+离子数密度都和太阳风动压之间存在着显著的正相关关系;H+离子数密度与太阳风动压之间存在着正相关关系,而和地磁活动指数Kp不相关.最后,对这些离子的特性与太阳风动压及地磁活动之间的关系进行了讨论.

关键词：极尖区离子 Kp指数太阳风动压

Network of GRAS transcription factors in plant development,fruit ripening and stress responses

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Horticulture Research 2023年第12期10卷 286-303页

作者： Catarina Neves Beatriz Ribeiro Rute Amaro Jesús expósito Jérôme Grimplet Ana Margarida Fortes BioISI-Biosystems and Integrative Sciences Institute Faculty of SciencesUniversity of LisbonCampo Grande1749-016 LisboaPortugal Centro de Investigación y Tecnología Agroalimentaria de Aragón(CITA) Departamento de Ciencia VegetalGobierno de AragónAvda.Montañana 93050059 ZaragozaSpain Instituto Agroalimentario de Aragón-IA2(CITA-Universidad de Zaragoza) Calle Miguel Servet 17750013 ZaragozaSpain

The plant-specific family of GRAS transcription factors has been wide implicated in the regulation of transcriptional reprogramming associated with a diversity of biological functions ranging from plant development processes to stress *** analyses of GRAS transcription factors supported by in silico structural and comparative analyses are emerging and clarifying the regulatory networks associated with their biological *** this review,a detailed analysis of GRAS proteins’structure and biochemical features as revealed by recent discoveries indicated how these characteristics may impact subcellular location,molecular mechanisms,and *** issues associated with GRAS classification into different subfamilies in diverse plant species even in the presence of robust genomic resources are discussed,in particular how it affects assumptions of biological *** into the mechanisms driving evolution of this gene family and how genetic and epigenetic regulation of GRAS contributes to subfunctionalization are ***,this review debates challenges and future perspectives on the application of this complex but promising gene family for crop improvement to cope with challenges of environmental transition.

关键词： function GRAS plant

exploring Suitable Applications for Doubly-Fed Asynchronous Machines

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Exploring Suitable Applications for Doubly-Fed Asynchronous ...

Underrepresentation of active histone modification marks in evolutionarily young genes

11th International Conference on electrical Machines and Systems

作者： Davide Aguglia René Wamkeue Philippe Viarouge Jérme Cros L.e.e.P.C.I.Lab. Laval UniversityQuebec(Qc)G1K 7P4 Canada Department of electrical eng. Abitibi-Témiscamingue Quebec University(UQAT)(Qc)J9X 5E4 Canada

＜正＞This paper presents an exploration of the global performances of doubly-fed asynchronous machines（DFAM）for different specifications:motor and/or generator operation, different torque-speed characteristics of the mechanical load or the prime *** models of the active and reactive power balance are used to illustrate the capabilities of such a drive *** DFAM number of poles and the gearbox ratio are included in the analytical *** show that the DFAM drive system can be interesting for many applications with a torque rapidly increasing with the mechanical speed.

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Insect Science 2017年第2期24卷 174-186页

作者： Daqi Yu Wenwen Shi Yong e. Zhang State Key Laboratory of Integrated Management of Pest Insects and Rodents & Key Laboratory of the Zoological Systematics andevolution Institute of Zoology Chinese Academy of Sciences Beijing 100101 China

It is known that evolutionarily new genes can rapidly evolve essential roles in fundamental biological processes. Nevertheless, the underlying molecular mechanism of how they acquire theft novel transcriptional pattern is less characterized except for the role ofcis-regulatory evolution. epigenetic modification offers an alternative possibility. Here, we examined how histone modifications have changed among different gene age groups in Drosophila.me.anogaster by integrative analyses of an updated new gene dataset and published epigenomic data. We found a robust pattern across various datasets where both the coverage and intensity of active histone modifications, histone 3 lysine 4 trimethylation and lysine 36 trimethylation, increased with evolutionary age. Such a temporal correlation is negative and much weaker for the repressive histone mark, lysine 9 trimethylation, which is expected given its major association with heterochromatin. By further comparison with neighboring old genes, the depletion of active marks of new genes could be only partially explained by the local epigenetic context. All these data are consistent with the observation that older genes bear relatively higher expression levels and suggest that the evolution of histone modifications could be implicated in transcriptional evolution after gene birth.

关键词： Drosophila H3K4me3 H3K36me3 H3K9me3 epigenetic evolution newgene evolution

Layer-controlled nonlinear terahertz valleytronics in two-dimensional semimetal and semiconductor PtSe_(2)

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InfoMat 2023年第11期5卷 49-63页

作者： Minoosh Hemmat Sabrine Ayari Martin Micica Hadrien Vergnet Shasha Guo mehdi Arfaoui Xuechao Yu Daniel Vala Adrien Wright Kamil Postava Juliette Mangeney Francesca Carosella Sihem Jaziri Qi Jie Wang Zheng Liu Jérôme Tignon Robson Ferreira emmanuel Baudin Sukhdeep Dhillon Laboratoire de Physique de l'ecole normale supérieure ENSUniversitéPSLCNRSSorbonne UniversitéUniversitéde Paris-CitéParisFrance School of Materials Science and engineering Nanyang Technological UniversitySingaporeSingapore Laboratoire de Physique de la Matière Condensée Département de PhysiqueFacultédes Sciences de TunisUniversitéTunis El ManarCampus UniversitaireTunisTunisia Key Laboratory of Multifunctional Nanomaterials and Smart Systems Suzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhouJiangsuthe People's Republic of China IT4Innovations National Supercomputing CenterVSB—Technical University of OstravaOstrava-PorubaCzech Republic Faculty of Materials Science and Technology VSB—Technical University of OstravaOstrava-PorubaCzech Republic School of electrical and electronic engineering&School of Physical and Mathematical Sciences The Photonics InstituteNanyang Technological UniversitySingaporeSingapore

Platinum diselenide(PtSe_(2))is a promising two-dimensional(2D)material for the terahertz(THz)range as,unlike other transition metal dichalcogenides(TMDs),its bandgap can be uniquely tuned from a semiconductor in the nearinfrared to a semimetal with the number of atomic *** gives the material unique THz photonic properties that can be ***,we demonstrate that a controlled THz nonlinearity—tuned from monolayer to bulk PtSe_(2)—can be realized in wafer size polycrystalline PtSe_(2)through the generation of ultrafast photocurrents and the engineering of the bandstructure *** is combined with the PtSe_(2)layer interaction with the substrate for a broken material centrosymmetry,permitting a second order ***,we show layer dependent circular dichroism,where the sign of the ultrafast currents and hence the phase of the emitted THz pulse can be controlled through the excitation of different bandstructure *** particular,we show that a semimetal has a strong dichroism that is absent in the monolayer and few layer semiconducting *** microscopic origins of this TMD bandstructure engineering are highlighted through detailed DFT simulations,and shows the circular dichroism can be controlled when PtSe_(2)becomes a semimetal and when the K-valleys can be *** well as showing that PtSe_(2)is a promising material for THz generation through layer controlled optical nonlinearities,this work opens up a new class of circular dichroism materials beyond the monolayer limit that has been the case of traditional TMDs,and impacting a range of domains from THz valleytronics,THz spintronics to harmonic generation.

关键词： 2D transition metal dichalcogenides Dirac semimetal optical nonlinearities terahertz valleytronics

<i>In Vitro</i>Digestibility and Gas Production from <i>e. crus-pavonis</i>Used in Wetlands from Domestic Wastewater Trea.me.t

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Open Journal of Animal Sciences 2021年第4期11卷 608-622页

作者： Gabriel Nicodème Tsetagho Martin Lekeufack Mama Mouchili etienne Pamo Tedonkeng Théophile Fonkou Department of Plant Biology Faculty of Science University of Dschang Dschang Cameroon Department of Animal Productions Faculty of Agronomy and Agricultural Sciences University of Dschang Dschang Cameroon

In order to evaluate the possibilities of valorization as the feed of the plant biomass produced during wastewater trea.me.t in constructed wetlands, a study of the in vitro digestibility and gas production of echinoc... 详细信息

In order to evaluate the possibilities of valorization as the feed of the plant biomass produced during wastewater treatment in constructed wetlands, a study of the in vitro digestibility and gas production of Echinochloa crus-pavonis was carried out in the Laboratory of Animal Production and Nutrition of the University of Dschang. The in vitro digestibility of Echinochloa crus-pavonis was evaluated at different harvesting periods. The digestibility parameters of E. crus-pavonis samples were determined by the in vitro method at different phenological stages. The gas production (GP) during 24 h of incubation was assessed using the ine="font-family:Verdana;"> vitro

关键词： echinochloa crus-pavonis Constructed Wetlands Ruminant Feed Nutritional Value in Vitro Digestibility

TUDe APPLIQU De eNCPHAL ATLAS DANS MALADeS AVe NeURASTHNIe

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现代电生理学杂志 2012年第3期19卷 142-143页

作者： Mingshun Liu,Po Ma Hospital Quatriéme,He bei Université medicale, Shijiazhuamg,050011,Chine

目的:探讨脑电地形图在神经衰弱患者中的应用价值。方法:90例神经衰弱患者进行了脑电地形图和脑CT检查,并进行了对比观察。结果:神经衰弱患者的脑电地形图有较明显的改变。结论:脑电地形图在神经衰弱患者中有重要应用价值。

关键词：脑电地形图神经衰弱

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计算产水气藏地质储量和水侵量的简便方法

钻采工艺 2010年第5期33卷 69-71页

作者：唐毅杨国罗阳俊吴美娥川庆钻探工程有限公司安全环保质量监督检测研究院中石油西南油气田分公司川西北气矿中石油吐哈油田分公司勘探开发研究院

产水气藏地质储量和水侵量是确定气藏开发规模和开发设计的重要参数。由于应力敏感性天然裂缝产水气藏开发的复杂性,如何准确计算上述参数来进行气藏的动态预测就现得非常重要,通过分别考虑应力敏感性气藏基质和裂缝系统的有效压缩系数... 详细信息

产水气藏地质储量和水侵量是确定气藏开发规模和开发设计的重要参数。由于应力敏感性天然裂缝产水气藏开发的复杂性,如何准确计算上述参数来进行气藏的动态预测就现得非常重要,通过分别考虑应力敏感性气藏基质和裂缝系统的有效压缩系数的基础上,推导出了应力敏感性产水气藏的物质平衡方程。通过对物质平衡方程的分析,绘制出气藏的生产指示曲线得到产水气藏的地质储量,再利用差值法计算水侵量的大小。该方法与常规方法相比,计算过程简单且结果满足精度要求。

关键词：应力敏感性天然裂缝气藏地质储量水侵量

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关于成为一个剧作家的“十诫”

广东艺术 1999年第5期 53-54页

作者： Terrence me Nally 熊挺美

在我35年的写作生涯中,我总结了10点经验。我将把其中的9点与你分享。 1.如果你偶然因写了一个剧本而获了个奖或是荣誉,你不可能感谢得完所有你应该感谢的人。你的感谢可以从在你八岁时便带你去看“Anni e Getvyour Gun”的父母开始,到... 详细信息

在我35年的写作生涯中,我总结了10点经验。我将把其中的9点与你分享。 1.如果你偶然因写了一个剧本而获了个奖或是荣誉,你不可能感谢得完所有你应该感谢的人。你的感谢可以从在你八岁时便带你去看“Anni e Getvyour Gun”的父母开始,到向你介绍莎士比亚巨著的高中英语教师,直到最后的那些认为你是世界上最优秀的人的伙伴,即使他们的看法是错的。

关键词：剧作家剧本高中英语十诫莎士比亚制作人戏剧界美国戏剧音乐剧作品