搜索结果: 1-15 共查到“知识库 理学 EC”相关记录28条 . 查询时间(0.222 秒)
Simulation of tropospheric chemistry and aerosols with the climate model EC-Earth
Simulation of tropospheric chemistry the climate model EC-Earth
2014/12/19
We have integrated the atmospheric chemistry
and transport model TM5 into the global climate model
EC-Earth version 2.4. We present an overview of the TM5
model and the two-way data exchange betwee...
能量约束下的同化混染与分离结晶作用模型(EC-AFC)在超镁铁质岩浆演化过程中的应用——以含铜镍硫化物矿床的四川力马河岩体为例
EC-AFC模型 Sr-Nd同位素 岩浆演化 力马河岩体
2014/1/17
除极少数情况外,岩浆的演化过程基本为开放体系。AFC模型(同化混染+分离结晶)是模拟岩浆演化过程的经典方法。事实上,岩浆演化过程不仅和围岩有物质交换还存在能量的交换,因此由Spera和Bohrson提出的能量约束下的开放系统岩浆演化过程的同化混染与分离结晶(EC-AFC)模型更加符合地质实际,本文介绍了该模型的方法,在此基础上,以含铜镍矿床的四川力马河岩体为例,运用EC-AFC模型模拟该岩体的岩浆...
Search for beta plus/EC double beta decay of 120Te
Search beta plus/EC double beta decay 120Te
2010/12/29
We present a search for beta plus/EC double beta decay of 120Te performed with the CUORICINO experiment, an array of TeO2 cryogenic bolometers. After collecting 0.0573 kg y of 120Te, we see no evidenc...
We present a search for β+/EC double beta decay of 120Te performed with the CUORICINO xperiment, an array of TeO2 cryogenic bolometers.
An approach to the implementation of European Directive 2007/60/EC on flood risk management in the Czech Republic
implementation f European Directive Czech Republic
2010/10/21
Directive 2007/60/EC of the European Parliament and of the Council of 23 October 2007 on the assessment and management of flood risks (the Flood Risk Directive) signifies that flood risk analysis meth...
Size distributions of dicarboxylic acids, ketoacids, α-dicarbonyls, sugars, WSOC, OC, EC and inorganic ions in atmospheric particles over Northern Japan: implication for long-range transport of Siberian biomass burning and East Asian polluted aerosols
atmospheric particles Northern Japan Siberian biomass burning and East Asian polluted aerosols
2010/8/13
To better understand the size-segregated chemical composition of aged organic aerosols in the western North Pacific rim, day- and night-time aerosol samples were collected in Sapporo, Japan during sum...
在PC+EC+DMC复合溶剂体系中, 研究了Et4NBF4(四氟硼酸四乙基铵)与LiPF6组成的复合盐电解质对石墨负极材料界面性质的影响. 用循环伏安和恒电流充放电测试方法研究了电解液与石墨负极的相容性, 通过傅里叶变换红外光谱(FTIR)对固体电解质中间相膜(SEI)的成分变化进行了研究. 结果表明, 电解液中的Et4NBF4参与了SEI膜的形成; 当Et4NBF4浓度为0.2 和0.5 mo...
EC-SVM approach for real-time hydrologic forecasting
EC-SVM approach real-time hydrologic forecasting
2009/12/4
This study demonstrates a combined application of chaos theory and support vector machine (SVM) in the analysis of chaotic time series with a very large sample data record. A large data record is ofte...
采用差热-热重(TG-DTA)、恒电流充放电和交流阻抗(EIS)分析了二氟草酸硼酸锂(LiODFB)的热稳定性, 研究了LiODFB/碳酸乙烯酯(EC)+碳酸二甲酯(DMC)电解液的电化学性能及界面特征. 实验结果表明, LiODFB不仅具有更高的热稳定性, 而且在EC+DMC溶剂中具有较好的电化学性能. 与使用LiPF6/EC+DMC的电解液相比, 锂离子电池应用LiODFB基电解液在55 ℃的...
Positive sampling artifact of carbonaceous aerosols and its influence on the thermal-optical split of OC/EC
carbonaceous aerosols thermal-optical split OC/EC
2009/10/9
Accurate measurement of carbonaceous aerosols is challenging, due to the sampling artifact and the problems of the split of OC/EC. Two approaches have been used to account for the positive artifact: b...
130Nd和140Tb的EC/β+衰变研究
EC/β+衰变 衰变纲图 氦喷嘴带传输系统 符合方法
2009/7/3
利用能量为170MeV左右的36Ar重离子束轰击96Ru和106Cd浓缩同位素靶,分别生成缺中子同位素130Nd和140Tb.借助氦喷嘴带传输系统,用X–γ和γ–γ符合方法,分离鉴别了这两种核素,并进一步测定了它们的衰变性质.得到130Nd的半衰期为(13±3)s,首次建议了它的EC/β+衰变纲图,推测了其子核130Pr的基态和低位能级的自旋宇称.修订了140Tb的原有极简单的EC/β+衰变纲图并...
通过96Ru(40Ca,ln2p)反应,采用氦喷嘴带传输系统和X-γ与γ-γ符合测量方法,首次建议了133Sm的简单的(EC+β+)衰变纲图.由于Ru靶中含有98—102Ru的成分,同时产生了133Pr,并首次测定了133Pr的11/2－同质异能态的寿命为(1.1±0.2)s.用单粒子模型提取了131,133,135?,137Pr的11/2－同质异能态的约化跃迁几率的实验值,并与Weisscopf...
Ir β+/EC衰变及其系统性分析
β+/EC衰变 咳喷嘴带传输系统 半衰期
2009/7/3
在在束实验条件下用γ-γ符合方法研究了具有β+/EC衰变性质的核素176,178Ir的衰变γ射线. 另外借助氦喷嘴快速带传输系统在排除在束干扰的条件下, 进一步对176Ir的β+/EC衰变进行了研究, 在确认在束测量新γ射线的同时建议了176Ir的一个低自旋同核异能态. 从衰变系统性方面对176,178Ir核中存在同核异能态的合理性和可能性进行了分析.
缺中子130Pm和128Pr核的EC/β+衰变研究
(EC+β+)衰变 氦喷嘴带传输系统 衰变纲图
2009/6/12
171MeV36Ar束轰击96Ru靶由熔合蒸发反应生成了130Pm和128Pr核.由氦喷嘴快速带传输系统将反应产物送到低本底区.基于X-γ-t,γ-γ-t符合测量,首次建立了130Pm的(EC+β+)衰变纲图.重新研究了128Pr核的衰变,订正和补充了γ射线,建立了新的(EC+β+)衰变纲图.