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Ascorbic acid and prunasin,two candidate biomarkers for endodormancy release in almond flower buds identified by a nontargeted metabolomic study

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Horticulture Research 2020年第1期7卷 117-129页

作者： jesús guillamón guillamón Ángela sánchez Prudencio JoséEnrique Yuste Federico Dicenta Raquel sánchez-Pérez Department of Plant Breeding.CEBAs-CsIC Campus Universitario de Espinardo30100 EspinardoSpain Metabolomics Platform of CEBAs-CsIC Campus Universitario de Espinardo30100 EspinardoSpain

Temperate fruit trees belonging to Prunus species have the ability to suspend(induce dormancy)and resume growth periodically in response to environmental and seasonal *** release requires the long-term accumulation of *** accumulation of cultivar-specific chill requirements,plants enter the state of ecodormancy,which means the ability to grow has been restored,depending on the fulfilment of heat *** many different metabolic pathways are implicated in endodormancy release,we have performed a metabolomic analysis,using the ultra-high-performance liquid chromatography–quadrupole time-of-flying(UPLC–QToF)*** assayed flower buds in different stages of endodormancy in four almond cultivars with different flowering times:the extra-early Desmayo Largueta,the late Antoñeta,the extra-late Penta,and the ultra-late *** orthogonal projection to latent-structure discriminant-analysis model was created to observe differences between endodormant and ecodormant flower *** metabolites showing the most significant variation were searched against the Metlin,HMDB,and KEGG libraries,which allowed us to identify 87 *** metabolites were subsequently assigned to specific pathways,such as abscisic acid biosynthesis,phenylpropanoid biosynthesis,and D-sorbitol metabolism,among *** two metabolites that exhibited the most significant variations in all the cultivars studied with fold changes of up to 6.49 were ascorbic acid and *** the first time,these two metabolites have been proposed as potential biomarkers for endodormancy release in *** the high synteny present between the Rosaceae species,these results could be extrapolated to other important crops like peach,plum,cherry,or apricot,among others.

关键词： metabolism release crops

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Characterization of Vertical Wind speed Profiles Based on Ward's Agglomerative Clustering Algorithm

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Journal of Modern Power systems and Clean Energy 2023年第5期11卷 1437-1449页

作者： M.C.Bueso A.Molina-García A.P.Ramallo-González A.Fernández-guillamón Department of Applied Mathematics and statistics Universidad Politécnica de Cartagena30202 CartagenaSpain Department of Automatics Electrical Engineering and Electronic TechnologyUniversidad Politécnica de Cartagena30202 CartagenaSpain Department of Information and Communications Engineering Computer Science FacultyUniversity of Murcia30100 MurciaSpain Universidad de Castilla La-Mancha Campus Universitario02071 AlbaceteSpain

Wind turbine blades have been constantly increasing since wind energy becomes a popular renewable energy source to generate electricity. Therefore, the wind sector requires a more efficient and representative characterization of vertical wind speed profiles to assess the potential for a wind power plant site. This paper proposes an alternative characterization of vertical wind speed profiles based on Ward's agglomerative clustering algorithm, including both wind speed module and direction data. This approach gives a more accurate incoming wind speed variation around the rotor swept area, and subsequently, provides a more realistic and complete wind speed vector characterization for vertical profiles. Real wind database collected for 2018 in the Forschungsplattformen in nordund Ostsee(FInO) research platform is used to assess the methodology. A preliminary pre-processing stage is proposed to select the appropriated number of heights and remove missing or incomplete data. Finally, two locations and four heights are selected, and 561588 wind data are characterized. Results and discussion are also included in this paper. The methodology can be applied to other wind database and locations to characterize vertical wind speed profiles and identify the most likely wind data vector patterns.

关键词： Clustering algorithm wind speed data management power generation

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Photoluminescence emissions of Ca_(1-x)WO_(4):xEu^(3+):Bridging between experiment and DFT calculations

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Journal of Rare Earths 2022年第10期40卷 1527-1534页

作者： Amanda Fernandes Gouveia Marcelo Assis Lara Kelly Ribeiro Aline Estefany Brandao Lima Eduardo de Oliveira Gomes Daniele souza Yara Gobato Galvao Ieda Lucia Viana Rosa Geraldo Eduardo da Luz Jr Eva guillamón Elson Longo Juan Andrés Miguel Angel san-Miguel Department of Physical and Analytical Chemistry University Jaume I(UJI)12071CastelloSpain Institute of Chemistry State University of Campinas(Unicamp)13083-970CampinasSPBrazil CDMF Federal University of S?o Carlos(UFSCar)P0.Box 67613565-905Sao CarlosSao PauloBrazil Departamento de Química Federal University of Piauí(UFPI)64049-550TeresinaPiautBrazil Physics Department Federal University of S?o Carlos(UFSCar)P.0.Box 67613565-905Sao CarlosSao PauloBrazil

In this work,the impact of the doping process on the photoluminescence emission of CaWO_(4) as a function of the concentration of Eu^(3+) cation(0.01 mol%,0.02 mol%,0.04 mol%,0.06 mol%,0.08 mol%,and 0.10 mol%) is discussed in ***_(1-x)WO~4:xEu^(3+) samples were successfully synthesized by a simple coprecipitation method followed by microwave *** blue shift in the absorption edge confirms the quantum confinement effect and the band gap energy covers the range from 3.91 to 4.18 eV,as the amount of Eu^(3+) cations *** experimental results are sustained by first-principles calculations,at the density functional theory level,to decipher the geometry and electronic properties,thereby enabling a more accurate and direct comparison between theory and experiment for the Ca_(1-x)WO_(4):xEu^(3+) structure.

关键词： Ca_(1-x)WO_(4):xEu^(3+) DFT calculations Photoluminescence emissions Rare earths

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工业用镁的供应和需求

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轻合金加工技术 1986年第12期 37-40页

作者： Y.M.guillam 王奎民

1984年镁的生产和装船量接近于创记录水平。1984年与1983年相比,镁的消耗量增加6％,但其产量增加39％。根据上半年非常低的库存水平,在1984年下半年,重新制定了库存量。镁需求量的增加,主要表现在压铸和钢的脱硫上。在今后的5年内,这种... 详细信息

1984年镁的生产和装船量接近于创记录水平。1984年与1983年相比,镁的消耗量增加6％,但其产量增加39％。根据上半年非常低的库存水平,在1984年下半年,重新制定了库存量。镁需求量的增加,主要表现在压铸和钢的脱硫上。在今后的5年内,这种趋势希望继续下去,可以预测,镁的使用总量平均增长率为4％。预测表明,考虑到镁在各方面应用的迅速发展,镁的生产能力的储备应保持在17％左右。

关键词：生产能力脱硫化工单元操作需求北美洲产量原镁消耗量

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