云南高校图书馆联盟文献共享服务平台- CHALK

CHALK: 作品数：24被引量：5H指数：1; 导出分析报告; 相关领域：文化科学更多>>; 相关作者：朴日花金永梅齐春艳高玉民孟凡梅更多>>; 相关机构：中国政法大学温州德克家居装饰材料有限公司暨南大学吉林省农业科学院更多>>; 相关期刊：《Geoscience Frontiers》《课程教育研究》《英语大王》《Forest Ecosystems》更多>>; 相关基金：国家自然科学基金更多>>

Advances in Mechanistic Studies of Metal-Catalyzed Hydrophosphinylation of Non-Activated Alkynes: 《有机化学》2024年第12期3678-3685,共8页Liu Yi-Yu Hu Yudong Zhang Qing-Wei; 国家自然科学基金(No.22071224)资助项目.; The synthesis of phosphine compounds through the addition reaction of H-[P(O)]species to olefins and alkynes has been extensively studied.Two different mechanisms of the addition of H-[P(O)]species to non-activated al...; 关键词：HYDROPHOSPHORYLATION mechanistic study Chalk-Harrod type mechanism proton transfer ligand to ligand hydrogen transfer

Identification and characterization of the chalkiness endosperm gene CHALK-H in rice(Oryza sativa L.)被引量：1: 《Journal of Integrative Agriculture》2023年第10期2921-2933,共13页PIAO Ri-hua CHEN Mo-jun MENG Fan-mei QI Chun-yan KOH Hee-jong GAO Meng-meng SONG An-qi JIN Yong-mei YAN Yong-feng; the Administration of Central Funds Guiding the Local Science and Technology Development,China(202002069JC);the earmarked fund for the China Agriculture Research System(CARS-01-10)。; Chalkiness is one of the most important agronomic traits in rice breeding,which directly affects the quality of rice seed.In this study,we identified a chalkiness endosperm mutant,chalk-h,from N-methyl-N-nitrosourea(M...; 关键词：CHALK-H Seryl-tRNA synthetase CHALKINESS RICE

Chalk drawings adorn city: 《Changjiang Weekly》2022年第15期6-6,共1页Wang Zheng; Yu Yuanyuan,30 years old,has created many chalk drawings of animals and landscapes in Huayuan Community in Jiangxia District.The colorful drawings have amazed the residents in her community and have attracted the atte...; 关键词：RESIDENTS LANDSCAPE DRAWING

Ichnofabric analysis of bathyal chalks:the Miocene Inglis Formation of the Andaman and Nicobar Islands,India: 《Journal of Palaeogeography》2021年第4期494-508,共15页Bhawanisingh G.Desai; In the Bay of Bengal,the Andaman and Nicobar Islands represent part of the Burma-Sunda-Java subduction complex.The Islands are composed of sediments ranging in age from Jurassic to Recent,represented by ophiolites,fly...; 关键词：ICHNOFABRIC Nannofossil ooze CHALK BATHYAL Bay of Bengal MIOCENE

Modeling interaction between CO_(2),brine and chalk reservoir rock including temperature effect on petrophysical properties: 《Energy Geoscience》2021年第4期337-344,共8页Hisham Ben Mahmud Walid Mohamed Mahmud Ali Al-Rubaye; Carbon dioxide(CO_(2))capture and sequestration through CO_(2)enhanced oil recovery(EOR)in oil reservoirs is one of the approaches considered to reduce CO_(2)emission into the atmosphere.The injection of CO_(2)into a ...; 关键词：CO_(2)ebrine injection Petrophysical properties Mineral volume fraction COMSOL Multiphysics software Temperature effect on chalk rock

Influence of temperature cycling and pore fluid on tensile strength of chalk被引量：1: 《Journal of Rock Mechanics and Geotechnical Engineering》2019年第2期277-288,共12页T.Voake A.Nermoen C.Ravn?s R.I.Korsnes I.L.Fabricius; Calcite has a highly anisotropic thermal expansion coefficient, and repeated heating and cooling cycles can potentially destabilize chalks by breaking cement bonds between neighboring particles. Based on tensile stren...; 关键词：TENSILE strength WEAKENING by HEATING and cooling cycles ANISOTROPIC thermal EXPANSION

Drought sensitivity of beech on a shallow chalk soil in northeastern Germany - a comparative study: 《Forest Ecosystems》2017年第1期45-54,共10页Marieke van der Maaten-Theunissen Hanna Bummerstede Janette Iwanowski Tobias Scharnweber Martin Wilmking Ernst van der Maaten; support by a research grant of the Eva Mayr-Stihl Foundation MMT and MW are participating researchers of the research training group RESPONSE,funded by the German Research Council(DFG GRK2010); Background： We compare the climate sensitivity of European beech （Fagus sylvatica L.） in two forest nature reserves in northeastern Germany. The one reserve, Schlossberg, is characterized by shallow chalk soils, wh...; 关键词：Climate-growth relationships DENDROECOLOGY Inter-tree variability Temporal stability Drought stress

从芝加哥大学的教育理念看大学一流人才培养被引量：1: 《学园》2017年第6期111-112,共2页张森; 美国芝加哥大学的发展经验表明,大学一流人才的培养是'道器一体'的结果——既要有明确的大学定位,又要坚持合理的、有效的培养模式。芝加哥大学将大学的发展深深扎根于当地社会环境,同时发展出workshop模式、chalk平台、TA制度等成熟的...; 关键词：芝加哥大学 workshop模式 chalk平台 TA制度

High-resolution geological maps of central London, UK： Comparisons with the London Underground: 《Geoscience Frontiers》2016年第2期273-286,共14页Jonathan D. Paul; This study presents new thickness maps of post-Cretaceous sedimentary strata beneath central London. 〉1100 borehole records were analysed. London Clay is thickest in the west; thicker deposits extend as a narrow fing...; 关键词：LONDON London Underground London Clay Lambeth Group CHALK TUNNELLING BOREHOLES

Impact of Multimedia-aided Teaching on Students＇ Academic Achievement and Attitude at Elementary Level: 《US-China Education Review(A)》2015年第5期349-360,共12页Iqbal Shah Muhammad Khan; The use of multimedia in education has proven its importance due to its positive impact on the teaching and learning process. The present study investigates comparative effectiveness of multimedia-aided teaching （MAT...; 关键词：multimedia-aided teaching （MAT） academic achievement ATTITUDE chalk-and-talk （CAT） method Attitude Towards Science Scale （ATSS）

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