助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   加速器质谱仪 的翻译结果: 查询用时:0.82秒
图标索引 在分类学科中查询
所有学科
地质学
核科学技术
更多类别查询

图标索引 历史查询
 

加速器质谱仪
相关语句
  accelerator mass spectrometer
     Design of Virtual Double-parameter multichannel Analyzer to Measure ~(14)C on the Accelerator Mass Spectrometer
     在加速器质谱仪上测量~(14)C的虚拟双参数多道分析器系统设计
短句来源
     The paper introduces the design of the virtual double parameter multichannel analyzer based on PC DAQ board and LabVIEW, the graphical development platform, and the use of it to measure the double parameter Δ E E r spectrum of 14 C on the accelerator mass spectrometer.
     介绍了基于LabVIEW平台与多功能数据采集卡设计的虚拟双参数多道分析器系统 ,及其在加速器质谱仪上测量14 C双参数谱的应用
短句来源
  accelerator mass spectrometry
     A piston core,RC26 16,dated by 14 C accelerator mass spectrometry,provides a nearly continuous paleo oceanographic record of the northeastern South China Sea for the last 15 200 years.
     据加速器质谱仪14C测年,RC26-16孔提供了南海北部近15200a来古海洋学的连续沉积记录。
短句来源
     Since 1992 we have carried out the accelerator mass spectrometry(AMS) study of the bio macromolecule adduction in vivo with the tobacco specific 14 C labeled nicotine and its nitrosamine derivative NNK. We quantified the DNA adducts as well as the histones (H1 and H3) adducts in mouse liver by means of the AMS system on the 2×6 MV EN Tandem of the Institute of Heavy Ion Physics,Peking University.
     自1992年以来,使用北京大学重离子物理研究所的2×6MVEN型串列静电加速器上的加速器质谱仪(AMS),较系统地研究了14C标记的尼古丁和鼠肝、肺细胞核DNA的加合,以及和鼠肝细胞核组蛋白的加合。
短句来源
     The progress in accelerator mass spectrometry made it possible to investigate astronomy, geography and paleoclimate by high precision measurements of cosmogenic 10 Be from various archives.
     加速器质谱仪 (AMS)的发展使高精度测量宇宙成因核素1 0 Be并应用于研究天文、地理和古气候成为可能。
短句来源
  相似匹配句对
     Schottky Mass Spectroscope
     肖特基质谱仪
短句来源
     Accelerator-Based Atomic Physics
     基于加速器的原子物理学
短句来源
     Accelerator-Auxiliary Driven Nuclear Power Reactor
     加速器驱动的核电站
短句来源
     F.W.Aston——Inventor of the mass spectrograph
     质谱仪的发明者阿斯顿
短句来源
     Design of Virtual Double-parameter multichannel Analyzer to Measure ~(14)C on the Accelerator Mass Spectrometer
     在加速器质谱仪上测量~(14)C的虚拟双参数多道分析器系统设计
短句来源
查询“加速器质谱仪”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  accelerator mass spectrometer
A radiocarbon date (Accelerator Mass Spectrometer method) on a fragment of one of these fruiting stems has a two-sigma calendric date range of A.D.
      
The Zürich EHT accelerator mass spectrometer was then used to determine the radiocarbon age of this prehistoric rock painting.
      
Especially the electrospray ion source is described and the accelerator mass spectrometer and the storage ring are presented.
      
  accelerator mass spectrometry
Radiocarbon dating of the pollen concentrate from late Pleistocene syngenetic ice wedges was carried out using accelerator mass spectrometry (AMS) in Seyakha and Bizon sections.
      
Determination of79Se with accelerator mass spectrometry technique
      
Genotoxic effects of low-dose exposure to pirimicarb studied with accelerator mass spectrometry
      
The 14C nuclide was detected using accelerator mass spectrometry (AMS).
      
The new technique of tandem accelerator mass spectrometry (TAMS) has improved the sensitivity for measurement of several long-lived radioisotopes and certain stable isotopes by many orders of magnitude.
      
更多          
  accelerator mass spectroscopy
In addition accelerator mass spectroscopy program has also been started.
      
Accelerator mass spectroscopy is a sensitive technique used for the measurement of radioisotopes, for example in carbon dating.
      
Th and we have initiated a collaboration with Argonne National Laboratory to make these measurements with Accelerator Mass Spectroscopy.
      


Abstract The cosmogenic radioisotope

利用加速器质谱仪和高精度热离子质谱仪对沧州地区地下水的宇宙成因核素36Cl以及稳定同位素37Cl/35Cl进行了测试,并利用氯同位素有效地确定了沧州地区咸水成因.同时,根据36Cl资料计算出该区第四纪第三含水组(Q2)地下水36Cl年龄为250ka,第四含水组(Q1)地下水36Cl年龄为300ka.

Since 1992 we have carried out the accelerator mass spectrometry(AMS) study of the bio macromolecule adduction in vivo with the tobacco specific 14 C labeled nicotine and its nitrosamine derivative NNK.We quantified the DNA adducts as well as the histones (H1 and H3) adducts in mouse liver by means of the AMS system on the 2×6 MV EN Tandem of the Institute of Heavy Ion Physics,Peking University.In most cases,the dose range administered was from 0 1μg to 400μg/kg b.w.,the lower levels of which...

Since 1992 we have carried out the accelerator mass spectrometry(AMS) study of the bio macromolecule adduction in vivo with the tobacco specific 14 C labeled nicotine and its nitrosamine derivative NNK.We quantified the DNA adducts as well as the histones (H1 and H3) adducts in mouse liver by means of the AMS system on the 2×6 MV EN Tandem of the Institute of Heavy Ion Physics,Peking University.In most cases,the dose range administered was from 0 1μg to 400μg/kg b.w.,the lower levels of which were equivalent to the human exposure to the environmental cigarette smoke.In all the adduction systems studied the definite biomacromolecule adduction with nicotine or NNK was observed.The number of adducts increased with increasing dose in different graphic fashions,exponential,linear or non linear.The DNA adduction is well recognized as an effective biomarker or molecular dosimeter,indicating the early detectable and critical step of chemical mutagenesis and carcinogenesis.Our findings have revealed the fact that nicotine per se is a potential carcinogen other than the well known addiction fact.Besides,we first observed the histones adduction with nicotine that did harm to the gene regulatory function of the DNA binding protein histones.The detection limit of adducts was 1 adduct per 10 10 nucleotides for DNA and 4.6×10 -17 mol(46 amol)/mg H1 protein for histone.The latter is the highest sensitivity to date in biomarker measurements compared to the data previously reported.

自1992年以来,使用北京大学重离子物理研究所的2×6MVEN型串列静电加速器上的加速器质谱仪(AMS),较系统地研究了14C标记的尼古丁和鼠肝、肺细胞核DNA的加合,以及和鼠肝细胞核组蛋白的加合。在这些体内生物大分子中均观察到肯定的加合作用。加合物数目随尼古丁的动物剂量的增加而增加,剂量响应呈指数直线关系或非指数直线或曲线关系。实验结果表明尼古丁不仅是公认的吸烟上瘾的主要因子,而且可能是致癌物质。AMS测量灵敏度达很高水平:每1010个核苷酸可检测的最低限量为1个加合物和每mg(毫克)H1蛋白质可检测的最低限量为4.6×10-17mol加合物,后者高于前人报道过的灵敏度。生物加速器质谱法可以为基因毒性研究提供极灵敏的生物标志物。

A piston core,RC26 16,dated by 14 C accelerator mass spectrometry,provides a nearly continuous paleo oceanographic record of the northeastern South China Sea for the last 15 200 years.The paleo oceanographic development can be subdivided into three stages:(1)last glacial stage from 15 2 to 13 3 ka,(2) deglacial stage from 13 3 to 9 ka,and (3) interglacial stage from 9ka to the present. Winter sea surface temperatures rose from 18° C to about...

A piston core,RC26 16,dated by 14 C accelerator mass spectrometry,provides a nearly continuous paleo oceanographic record of the northeastern South China Sea for the last 15 200 years.The paleo oceanographic development can be subdivided into three stages:(1)last glacial stage from 15 2 to 13 3 ka,(2) deglacial stage from 13 3 to 9 ka,and (3) interglacial stage from 9ka to the present. Winter sea surface temperatures rose from 18° C to about 24° C from the last glacial stage to the Holocene.A short lived cooling of 3° C in winter temperature,centered at about 11ka,may reflect the Younger Dryas cooling event in this area.Summer sea surface temperatures have remained between 27° C and 29° C throughout the record.During the last glacial stage,temperature difference between summer and winter was about 9° C,much higher than the Holocene value of about 5° C. Oxygen and carbon isotopic gradients between surface(0~50 m)and subsurface(50~100 m)waters during the last glacial stage were smaller than those in the Holocene.Fauna derived estimates of nutrient contents of the surface ocean were relatively high during 15~13 ka.We suggested that the relatively strong glacial winter monsoon may have caused stronger upwelling and,hence,induced higher fertility and biological productivity.The winter monsoon became weaker during the Holocene. Carbonate compensation depth and foraminiferal lysocline were shallower during the Holocene except for an short lived deepening at about 5 3 ka.A preservation peak of planktonic foraminifera and calcium carbonate occurred between 14 and 12 ka,synchronous with the global preservation event of Termination Ⅰ.

加速器质谱仪14C测年,RC26-16孔提供了南海北部近15200a来古海洋学的连续沉积记录。其古海洋学发展过程可分为3期,(1)最后冰期(15.2~13.3ka);(2)冰消期(13.3~9.0ka);(3)间冰期(9.0ka~现代)。末次冰期至全新世时,冬季海水表层温度由18℃上升至24℃,夏季则保持在27~29℃之间。在11ka时,冬季水温曾短暂的一度变凉(约3℃),此可能代表区内新仙女木事件。末次冰期时,夏季与冬季温度差约为9℃,它的变化幅度较全新世的5℃要大。末次冰期时,表层水(0~50m)与次表层水(50~100m)间碳、氧同位素递减梯度较全新世的为小。15~13ka时大洋表层动物衍生营养含量相对较高,推测这与较强的冬季风导致较强的上升流,而造成高养分和高生物生产率有关,全新世时冬季风变弱。全新世碳酸盐补偿深度和有孔虫溶跃层较浅,5.3ka时有短暂的变深,浮游有孔虫保存高峰和碳酸钙高峰值发生在14~12ka间,相当于全球性的TerminationⅠ事件。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关加速器质谱仪的内容
在知识搜索中查有关加速器质谱仪的内容
在数字搜索中查有关加速器质谱仪的内容
在概念知识元中查有关加速器质谱仪的内容
在学术趋势中查有关加速器质谱仪的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社