搜索结果: 1-13 共查到“知识库 理学 SF6”相关记录13条 . 查询时间(0.046 秒)
Development of an in situ sampler of submarine springs for the analysis of CFCs and SF6
sampler submarine spring CFCs SF6 Rishiri Island groundwater age
2017/4/11
The design and operation of an in situ contamination-free sampler of submarine spring water for CFCs and SF6 analysis
are described. The sampler consists of three parts: inlet, water pump, and sample...
为了保障SF6绝缘气体的纯度, 需要在SF6气体绝缘设备气室中配置一定量的吸附剂, 一方面用于控制气室内的水分含量, 另一方面用于吸附因各种原因产生的杂质气体。因而, 吸附剂的存在会对局部放电下使SF6发生分解而产生的特征组分进行吸附, 使得特征组分含量和变化规律发生改变。在利用特征组分诊断气体绝缘设备内部故障时, 必须考虑这一重要影响因素。为此, 该文在搭建的SF6气体局部放电分解试验平台上, ...
We present atmospheric sulfur hexafluoride (SF6) mole fractions and emissions estimates from the 1970s to 2008. Measurements were made of archived air samples starting from 1973 in the Northern Hemisp...
The global SF6 source inferred from long-term high precision atmospheric measurements and its comparison with emission inventories
the global SF6 source long-term high precision atmospheric measurements emission inventories
2010/8/12
Emissions of sulphur hexafluoride (SF6), one of the strongest greenhouse gases on a per molecule basis, are targeted to be collectively reduced under the Kyoto Protocol. Because of its long atmospheri...
A single gas chromatograph for accurate atmospheric mixing ratio measurements of CO2,CH4,N2O,SF6 and CO
gas chromatograph atmospheric mixing ratio measurements CO2 CH4 N2O SF6 CO
2010/2/8
We present an adapted gas chromatograph capable of measuring simultaneously and semi-continuously the atmospheric mixing ratios of the greenhouse gases CO2, CH4, N2O and SF6 and the trace gas CO with ...
Quantifying transport into the lowermost stratosphere using simultaneous in-situ measurements of SF6 and CO2
Quantifying transport lowermost stratosphere SF6 CO2
2009/8/25
The seasonality of transport and mixing of air into the lowermost stratosphere (LMS) is studied using distributions of mean age of air and a mass balance approach, based on in-situ observations of SF6...
Transport mechanisms for synoptic, seasonal and interannual SF6 variations and“age”of air in troposphere
Transport mechanisms synoptic seasonal interannual SF6 variations troposphere
2009/3/13
We use an atmospheric general circulation model (AGCM) driven chemistry-transport model (ACTM) to simulate the evolution of sulfur hexafluoride (SF6) in the troposphere. The model results are compared...
Global distribution of mean age of stratospheric air from MIPAS SF6 measurementsGlobal
distribution mean age stratospheric air MIPAS SF6
2008/10/29
Global distributions of profiles of sulphur hexafluoride (SF6) have been retrieved from limb emission spectra recorded by the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) on Envis...
阀切换技术在大气样品SF6快速分析中的应用
2007/12/18
建立了双柱阀切换技术分析大气样品中的SF6浓度的GC-ECD方法. 采用φ3.2mm×1m 5A分子筛（粒径为0.246~0.369mm）柱为预柱, φ3.2mm×0.5m 5A分子筛（粒径为0.175~0.246mm）柱为分析柱. 在实验条件下, 平均峰高响应为1.08×10-14 mL/μV, SF6峰高响应的相对标准偏差为2.2%, SF6的最低检测限为6.03×10-13 mL（3倍基线噪...
本文研究了TEA CO_2激光诱导SF_6与单晶硅和金属钨的表面化学反应。实验结果表明这些反应的反应率与激光频率之间具有明显的依赖关系, 在频率为942.2 cm~(-1)处反应率呈极大值。对于SF_6-Si体系, 反应率与硅的不同晶面有关, 在相同条件下Si(100)面与SF_6的反应率大于Si(111)面。对于SF_6-W体系, 测定了激光能量密度和脉冲辐照次数与反应率之间的关系, 其反应阈值...